CN219064427U - Device for detecting wall thickness of glass tube in drawing process - Google Patents
Device for detecting wall thickness of glass tube in drawing process Download PDFInfo
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- CN219064427U CN219064427U CN202223491288.6U CN202223491288U CN219064427U CN 219064427 U CN219064427 U CN 219064427U CN 202223491288 U CN202223491288 U CN 202223491288U CN 219064427 U CN219064427 U CN 219064427U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The utility model provides a device for detecting the wall thickness of a glass tube in a drawing process, which comprises a wall thickness imaging detection device, wherein the wall thickness imaging detection device comprises X, Y imaging detection light paths in two directions, each imaging detection light path in each direction comprises a camera unit and a backlight source which are oppositely arranged, the wall thickness imaging detection device is connected with a position adjustment mechanism to adjust the position of the wall thickness imaging detection device so that the glass tube in the drawing process is positioned at the center of a visual field of the imaging detection light paths in the X, Y directions during detection, and the imaging detection light paths in the X, Y directions are respectively in the horizontal direction and the vertical direction. The utility model provides a system for detecting the wall thickness of a high-end glass drawn tube on line, which is characterized in that a wall thickness imaging detection device detects the wall thickness of the glass drawn tube in real time from two directions of horizontal and vertical, the position of the wall thickness imaging detection device is convenient to adjust, and the quality, the yield and the production automation degree of the glass drawn tube can be effectively improved.
Description
Technical Field
The utility model relates to the technical field of machine vision, in particular to a device for detecting the wall thickness of a glass tube in a drawing process.
Background
The wall thickness is one of main parameters for measuring the quality of the glass tube of the raw material of the packaging bottle, at present, most of glass tube pulling enterprises in China adopt a manual sampling inspection mode for manually cutting out a section of glass tube for measurement to control the wall thickness, the manual sampling inspection has the defects of omission, false detection, low efficiency and the like, and the visual function of people is influenced by factors such as working time, working strength, physiology, psychology and the like, so that fatigue is very easy to generate. Meanwhile, the enterprise is urgent to realize transformation upgrading from manual spot inspection to automatic and intelligent inspection in face of the current rapidly-growing industry demands and the strict control of medicine package standards and medicine quality by the country and the increasing labor cost year by year. The method for detecting and automatically removing unqualified glass tubes with wall thickness on line is the current optimal solution, can solve the problem of the wall thickness of the medicinal packaging bottle from the source, and avoids a lot of troubles for subsequent deep processing. Domestic glass tube manufacturers only rarely use foreign online wall thickness detection equipment, but the popularization rate is not high due to the problems of cost, communication, inconvenient maintenance and the like.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the utility model provides a device for detecting the wall thickness of a glass tube in the drawing process, so as to achieve the purposes of online detection and production efficiency improvement. The specific technical scheme is as follows:
the utility model provides a device for detecting the wall thickness of a glass tube in a drawing process, which comprises a wall thickness imaging detection device, wherein the wall thickness imaging detection device comprises X, Y imaging detection light paths in two directions, each imaging detection light path in each direction comprises a camera unit and a backlight source which are oppositely arranged, the glass tube in the drawing process passes through an imaging acquisition area between the camera unit and the backlight source to carry out imaging acquisition on the passing glass tube, and the wall thickness imaging detection device is connected with a position adjustment mechanism to adjust the position of the wall thickness imaging detection device so that the glass tube in the drawing process is positioned at the center of a field of view of the imaging detection light paths in X, Y directions during detection, and the imaging detection light paths in X, Y directions are respectively in the horizontal direction and the vertical direction.
As an optimization of the technical scheme, the position adjusting mechanism comprises an arc rotation adjusting mechanism, a vertical adjusting mechanism and a horizontal adjusting mechanism;
the arc rotation adjusting mechanism comprises an arc guide rail mounting plate, an arc guide rail is arranged on the arc guide rail mounting plate, an arc sliding block is arranged on the arc guide rail in a sliding mode, the sliding block is connected with the wall thickness imaging detection device, and the sliding block is provided with a sliding block lock to lock the sliding block when the wall thickness imaging detection device is driven to move to a preset position;
the vertical adjusting mechanism comprises a vertical adjusting bracket, a first stepping motor and a first guide rail are arranged on the vertical adjusting bracket, the first stepping motor is connected with a first sliding block through a first lead screw, the first sliding block is connected with the first guide rail in a sliding manner, and the arc-shaped guide rail mounting plate is connected with the first sliding block so as to drive the first sliding block to vertically move along the first guide rail through the first stepping motor to realize the vertical movement of the wall thickness imaging detection device;
the horizontal adjusting mechanism comprises a horizontal adjusting bracket, a second stepping motor and a second guide rail are arranged on the horizontal adjusting bracket, the second stepping motor is connected with a second sliding block through a second lead screw, the second sliding block is connected with the second guide rail in a sliding manner, and the vertical adjusting bracket is connected with the second sliding block so as to drive the second sliding block to transversely move along the second guide rail through the second stepping motor to realize the transverse movement of the wall thickness imaging detection device.
As the preference of above-mentioned technical scheme, wall thickness formation of image detection device includes the installation base member, camera unit and backlight set up in the cavity of installation base member, the installation base member middle part has the detection hole that glass pipe passed through, and camera unit and backlight set up in the detection hole both sides, detection hole one side is provided with the opening.
As an optimization of the above technical scheme, the camera unit includes a CCD camera and a lens, the camera is a CCD camera, and the lens is a telecentric lens.
As the preferable choice of the technical scheme, the backlight source adopts a red diffuse reflection LED highlight backlight source.
As the preferable choice of the technical proposal, the installation matrix is formed by cutting a whole thick aluminum plate by laser.
As a preferable aspect of the above-mentioned utility model, the camera unit and the backlight are fixed in the mounting base body through the adjustment base, respectively.
As the optimization of the technical scheme, the mounting base body and the adjusting seat are subjected to matte and dark treatment so as to prevent reflection and refraction of light rays of the backlight source from influencing imaging effects.
As the preference of above-mentioned technical scheme, arc guide rail one side is provided with travel switch, travel switch control position adjustment mechanism's power, the opening points to the horizontal direction when rotating wall thickness formation of image detection device messenger arc slider and compressing tightly travel switch, and the power is position adjustment mechanism step motor circular telegram this moment, and control position adjustment mechanism drive wall thickness formation of image detection device horizontal migration makes the glass pipe follow the opening direction barrier-free and withdraws from.
The utility model provides a system for detecting the wall thickness of a high-end glass drawn tube on line, which is characterized in that a wall thickness imaging detection device detects the wall thickness of the glass drawn tube in real time from two directions of horizontal and vertical, the position of the wall thickness imaging detection device is convenient to adjust, and the quality, the yield and the production automation degree of the glass drawn tube can be effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an apparatus for detecting wall thickness of a glass tube during a drawing process according to an embodiment of the present utility model;
FIG. 2 is a schematic view of an apparatus for detecting wall thickness of a glass tube during drawing according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a state in which a gap of a wall thickness imaging detection device points in a horizontal direction;
FIG. 4 is a schematic illustration of the wall thickness imaging detection apparatus with the surface mount base housing removed;
FIG. 5 is a schematic diagram of a camera unit and backlight source structure of a wall thickness imaging detection device;
FIG. 6 is a schematic view of a position adjustment mechanism;
FIG. 7 is a schematic view of a horizontal adjustment mechanism of the position adjustment mechanism;
fig. 8 is a frame of glass tube image acquired by the camera.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the embodiments of the present utility model will be described in further detail with reference to the accompanying drawings.
The utility model provides a device for detecting the wall thickness of a glass tube in a drawing process, which comprises a wall thickness imaging detection device 1, wherein the wall thickness imaging detection device comprises imaging detection light paths in two directions of X, Y, each imaging detection light path in each direction comprises a camera unit and a backlight source which are oppositely arranged, the glass tube in the drawing process passes through an imaging acquisition area between the camera unit and the backlight source to carry out imaging acquisition on the passing glass tube, and the wall thickness imaging detection device is connected with a position adjustment mechanism 4 to adjust the position of the wall thickness imaging detection device so that the glass tube in the drawing process is positioned at the center of a field of view of the imaging detection light paths in two directions of X, Y during detection, and the imaging detection light paths in two directions of X, Y are respectively in the horizontal direction and the vertical direction.
The position adjusting mechanism 4 comprises an arc rotation adjusting mechanism 4-1, a vertical adjusting mechanism 4-2 and a horizontal adjusting mechanism 4-3;
the arc rotation adjusting mechanism 4-1 comprises an arc guide rail mounting plate 4-1-1, an arc guide rail is arranged on the arc guide rail mounting plate, an arc slide block 4-1-2 is arranged on the arc guide rail in a sliding mode, the slide block is connected with the wall thickness imaging detection device, and the slide block is provided with a slide block lock to lock the slide block when the wall thickness imaging detection device is driven to move to a preset position;
the vertical adjusting mechanism 4-2 comprises a vertical adjusting bracket 4-2-1, a first stepping motor 4-2-2 and a first guide rail 4-2-3 are arranged on the vertical adjusting bracket, the first stepping motor is connected with a first sliding block through a first lead screw, the first sliding block is connected with the first guide rail in a sliding manner, and the arc-shaped guide rail mounting plate is connected with the first sliding block 4-2-4 so as to drive the first sliding block to vertically move along the first guide rail through the first stepping motor to realize the vertical movement of the wall thickness imaging detection device;
the horizontal adjusting mechanism 4-3 comprises a horizontal adjusting bracket, a second stepping motor and a second guide rail are arranged on the horizontal adjusting bracket, the second stepping motor is connected with a second sliding block through a second lead screw, the second sliding block is connected with the second guide rail in a sliding manner, and the vertical adjusting bracket 4-2-1 is connected with the second sliding block so as to drive the second sliding block to transversely move along the second guide rail through the second stepping motor to realize the transverse movement of the wall thickness imaging detection device.
The wall thickness imaging detection device comprises a mounting substrate 1-1, the camera unit and the backlight source are arranged in a cavity of the mounting substrate, a detection hole through which a glass tube passes is formed in the middle of the mounting substrate, the camera unit and the backlight source are arranged on two sides of the detection hole, and a notch is formed in one side of the detection hole. The mounting matrix is formed by cutting a whole thick aluminum plate by laser.
The camera unit comprises a CCD camera 1-2 and a lens 1-4, wherein the camera is a CCD camera, and the lens is a telecentric lens. The backlight sources 1-5 are red diffuse reflection LED high-brightness backlight sources. The camera unit and the backlight source are respectively fixed in the installation base body through the adjusting seats 1-3 and 1-6.
The mounting base body and the adjusting seat are subjected to matte and dark treatment so as to prevent reflection and refraction of light rays of the backlight source from influencing imaging effects.
One side of the arc-shaped guide rail is provided with a travel switch 4-1-3, the travel switch 4-1-3 controls a power supply of the position adjusting mechanism, when the wall thickness imaging detection device is manually rotated to enable the arc-shaped sliding block to press the travel switch, the power supply is used for powering on a stepping motor of the position adjusting mechanism, at the moment, the notch points to the horizontal direction, and the position adjusting mechanism is controlled to drive the wall thickness imaging detection device to horizontally move so that the glass tube can exit along the notch direction without barriers.
Working principle: after the whole set of detection device is arranged on the glass tube drawing production line, the wall thickness imaging detection device is in a state of going into the production line, namely the device opening is in a horizontal state, at the moment, the arc sliding block compresses the travel switch, the horizontal advancing/exiting button of the horizontal adjusting mechanism of the position adjusting mechanism is powered on, the advancing button is clicked, the wall thickness imaging detection device enters the production line without barriers, and the arc sliding block lock is loosened to manually adjust the wall thickness imaging detection device to be in an X-direction vertical and Y-direction horizontal state. According to the displayed glass tube position, the position of the wall thickness imaging detection device can be finely adjusted manually or automatically through the vertical adjustment mechanism and the horizontal adjustment mechanism, the glass tube is ensured to be positioned at the center of the X/Y view field, various parameters are set, and measurement is started. The method comprises the steps that an X/Y camera lens and a backlight source of a glass tube in drawing pass through the camera lens of the X/Y camera lens of the wall thickness imaging detection device, the camera continuously collects image frame data of the glass tube in two directions and sends the image frame data to an industrial control computer (upper computer) 5, the industrial control computer (upper computer) 5 can calculate the sizes of two glass tube walls according to one frame of glass tube image obtained by one of the X/Y camera lens, when computer software carries out frame analysis on the obtained images of each frame, firstly, the brightness difference between the glass tube wall boundary and an external background 6 and the brightness difference between the glass tube wall boundary and a hollow background are utilized to determine the glass tube wall boundary, pixel values between the glass tube wall boundaries 2-1 and 2-2, between the glass tube wall boundaries 2-3 and 2-4 can be obtained according to the pixel values of the known whole image, and then the mm value corresponding to each pixel value can calculate the sizes of the two glass tube walls, and comprehensive detection results and setting parameters are obtained, so that whether the wall thickness of the glass tube is qualified or not is judged. When the glass tube exceeding the upper limit and the lower limit of the set wall thickness reaches the tube drawing tractor (not belonging to the system), and is cut by the cutter (not belonging to the system), the control host (lower computer) 3 sends a sorting and rejecting signal to the sorting mechanism (not belonging to the system), and the sorting mechanism rejects the overrun tube. When production faults such as pipe breakage and shutdown occur, the wall thickness imaging detection device is rotated at first, the arc-shaped guide rail sliding block compresses the travel switch, the horizontal advancing/exiting button of the horizontal adjusting mechanism of the position adjusting mechanism is powered on, the exiting button is clicked to exit the wall thickness imaging detection device from the production line, and detection software is stopped. And after the glass tube is pulled and drawn normally, repeating the steps again to finish the reset of the wall thickness imaging detection device and restarting the detection.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. The device for detecting the wall thickness of the glass tube in the drawing process is characterized by comprising a wall thickness imaging detection device, wherein the wall thickness imaging detection device comprises imaging detection light paths in two directions X, Y, each imaging detection light path in each direction comprises a camera unit and a backlight source which are oppositely arranged, the wall thickness imaging detection device is connected with a position adjustment mechanism to adjust the position of the wall thickness imaging detection device so that the glass tube in the drawing process is positioned at the center of a visual field of the imaging detection light paths in two directions X, Y during detection, and the imaging detection light paths in two directions X, Y are respectively in the horizontal direction and the vertical direction.
2. The apparatus for detecting a wall thickness of a glass tube during drawing according to claim 1, wherein the position adjusting mechanism comprises an arc rotation adjusting mechanism, a vertical adjusting mechanism and a horizontal adjusting mechanism;
the arc rotation adjusting mechanism comprises an arc guide rail mounting plate, an arc guide rail is arranged on the arc guide rail mounting plate, an arc sliding block is arranged on the arc guide rail in a sliding mode, the sliding block is connected with the wall thickness imaging detection device, and the sliding block is provided with a sliding block lock to lock the sliding block when the wall thickness imaging detection device is driven to move to a preset position;
the vertical adjusting mechanism comprises a vertical adjusting bracket, a first stepping motor and a first guide rail are arranged on the vertical adjusting bracket, the first stepping motor is connected with a first sliding block through a first lead screw, the first sliding block is connected with the first guide rail in a sliding manner, and the arc-shaped guide rail mounting plate is connected with the first sliding block so as to drive the first sliding block to vertically move along the first guide rail through the first stepping motor to realize the vertical movement of the wall thickness imaging detection device;
the horizontal adjusting mechanism comprises a horizontal adjusting bracket, a second stepping motor and a second guide rail are arranged on the horizontal adjusting bracket, the second stepping motor is connected with a second sliding block through a second lead screw, the second sliding block is connected with the second guide rail in a sliding manner, and the vertical adjusting bracket is connected with the second sliding block so as to drive the second sliding block to transversely move along the second guide rail through the second stepping motor to realize the transverse movement of the wall thickness imaging detection device.
3. The apparatus for detecting wall thickness of glass tube in drawing process according to claim 1, wherein the wall thickness imaging detection apparatus comprises a mounting base body, the camera unit and the backlight source are arranged in a cavity of the mounting base body, a detection hole through which the glass tube passes is formed in the middle of the mounting base body, the camera unit and the backlight source are arranged on two sides of the detection hole, and a notch is formed on one side of the detection hole.
4. The apparatus for detecting wall thickness of glass tube in drawing process according to claim 2, wherein the wall thickness imaging detection apparatus comprises a mounting base body, the camera unit and the backlight source are arranged in a cavity of the mounting base body, a detection hole through which the glass tube passes is formed in the middle of the mounting base body, the camera unit and the backlight source are arranged at two sides of the detection hole, and a notch is formed at one side of the detection hole.
5. The apparatus for detecting wall thickness of glass tube during drawing according to claim 1, wherein the camera unit comprises a CCD camera and a lens, the camera being a CCD camera, the lens being a telecentric lens.
6. The apparatus for detecting wall thickness of glass tube during drawing of claim 1, wherein the backlight uses a red diffuse reflecting LED highlighting backlight.
7. A device for detecting the wall thickness of a glass tube during drawing as claimed in claim 3, wherein the mounting substrate is laser cut from a single piece of thick aluminum sheet.
8. A device for detecting the wall thickness of a glass tube during drawing according to claim 3, wherein the camera unit and the backlight are fixed in the mounting base body by adjusting seats, respectively.
9. The apparatus for detecting wall thickness of glass tube in drawing process according to claim 8, wherein the mounting base and the adjusting seat are subjected to matte dark color treatment to prevent reflection and refraction of light of backlight source from affecting imaging effect.
10. The apparatus for detecting wall thickness of glass tube in drawing process according to claim 4, wherein a travel switch is provided on one side of the arc-shaped guide rail, the travel switch controls a power supply of the position adjusting mechanism, when the wall thickness imaging detecting device is rotated to press the travel switch by the arc-shaped slide block, the notch points to a horizontal direction, the power supply is powered on by a stepping motor of the position adjusting mechanism, and the position adjusting mechanism is controlled to drive the wall thickness imaging detecting device to horizontally move so that the glass tube is withdrawn along the notch direction without obstruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223491288.6U CN219064427U (en) | 2022-12-26 | 2022-12-26 | Device for detecting wall thickness of glass tube in drawing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223491288.6U CN219064427U (en) | 2022-12-26 | 2022-12-26 | Device for detecting wall thickness of glass tube in drawing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219064427U true CN219064427U (en) | 2023-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223491288.6U Active CN219064427U (en) | 2022-12-26 | 2022-12-26 | Device for detecting wall thickness of glass tube in drawing process |
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| CN (1) | CN219064427U (en) |
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- 2022-12-26 CN CN202223491288.6U patent/CN219064427U/en active Active
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