CN112556623A - Online plastic pipe outer diameter detection device and method - Google Patents
Online plastic pipe outer diameter detection device and method Download PDFInfo
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- CN112556623A CN112556623A CN202011422518.6A CN202011422518A CN112556623A CN 112556623 A CN112556623 A CN 112556623A CN 202011422518 A CN202011422518 A CN 202011422518A CN 112556623 A CN112556623 A CN 112556623A
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- plastic pipe
- fixed frame
- pipe
- outer diameter
- detection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
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- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to an online plastic pipe outer diameter detection device which comprises a rack, a fixed frame arranged on the rack and four detection components arranged on the fixed frame, wherein the four detection components are arranged on the fixed frame; the detection components are distributed on four sides of the fixed frame and form an angle of 90 degrees with each other, and the opposite detection components are positioned on the same straight line; the detection assembly comprises a contact sensor and a driving assembly for driving the contact sensor to move towards the center of the fixed frame; the touch sensor is connected to a display for displaying the touch sensor readings. The detection assembly is simple in structure, the detection precision meets the production requirement through the outer diameter of the plastic pipe detected by the mechanical structure, and meanwhile, the detection device is simple in structure and low in cost.
Description
Technical Field
The invention relates to the field of pipe detection equipment, in particular to an online type plastic pipe outer diameter detection device and method.
Background
After the pipe is finished, the outer diameter of the pipe needs to be detected to confirm whether the pipe meets the production specification. The existing online pipe outer diameter detection generally adopts modes such as CCD visual detection, ultrasonic detection or infrared detection, and the detection modes have the same problem although suitable application occasions, namely the equipment cost is very high, the maintenance is not easy, the equipment maintenance cost is also improved, and the two problems are combined, so that the existing online pipe outer diameter detection has high use cost.
Disclosure of Invention
The invention provides an online plastic pipe outer diameter detection device and method, aiming at solving the problems of high cost of the pipe outer diameter detection device and easy damage of a sizing sleeve in the prior art, and the device has a simple structure and reduces the cost of a detection component.
In order to solve the technical problems, the invention adopts the technical scheme that: an online plastic pipe outer diameter detection device comprises a rack, a fixed frame arranged on the rack and a plurality of detection assemblies arranged on the fixed frame; the detection assemblies are distributed on four sides of the fixed frame and form an angle of 90 degrees with each other, and the opposite detection assemblies are positioned on the same straight line; the detection assembly comprises a contact sensor and a driving assembly for driving the contact sensor to move towards the center of the fixed frame; the touch sensor is connected with a display for displaying the reading of the touch sensor.
The rack is placed at a discharge port of the plastic pipe manufacturing equipment, and the four detection assemblies are calibrated by using cubes with side lengths equal to the standard outer diameter of the plastic pipe. The specific calibration mode is that the driving assembly drives the contact sensor to move to the position of the cube, and after the contact sensor is in contact with the surface of the cube, the detection value of the contact sensor is reset to zero.
Finely adjusting the position of the rack to enable the produced plastic pipe to pass through the center of the fixed frame, driving the contact type sensor to be in contact with the plastic pipe by the driving assembly, displaying the reading of the contact type sensor by the display at the moment, adding the readings of the contact type sensors on the opposite sides, and if the sum is positive, increasing the pipe diameter in the direction to be larger than the standard pipe diameter; if the pipe diameter is negative, the pipe diameter in the direction is smaller than the standard pipe diameter; if the diameter of the pipe is zero, the pipe diameter in the direction is consistent with the standard pipe diameter.
In the detection process, the plastic pipe moves forwards all the time, the contact sensor keeps the contact state with the plastic pipe all the time, and the outer diameter detection of the plastic pipe is completed on line.
Preferably, the driving assembly comprises a driving module connected with the contact sensor and a positioning tool for fixing the driving module on the fixed frame. The positioning tool fixes the driving module on the fixed frame, so that the detection assembly is convenient to install and detach and convenient to maintain.
Preferably, the driving module is a cylinder, and the contact sensor is connected with a cylinder rod of the cylinder. When the air cylinder rod is retracted, the contact sensor contracts, and the air cylinder rod is prevented from being damaged due to mistaken collision with a plastic pipe. When the air cylinder enters compressed air, the air cylinder rod pushes the contact type sensor to move.
Preferably, the positioning tool is provided with a mounting groove, and a fastener penetrates through the mounting groove to fix the positioning tool on the fixed frame. The positioning tool can move along the fastener through the mounting groove to adjust the position, so that the position of the detection assembly can be adjusted conveniently, and the detection assemblies on the opposite sides can be positioned on the same straight line more easily.
Preferably, the touch sensor is a roller type touch sensor. When the roller type contact sensor is in contact with the plastic pipe, the roller type contact sensor is in rolling connection with the plastic pipe, so that the friction force between the roller type contact sensor and the plastic pipe is reduced, and further the abrasion and the movement resistance between the roller type contact sensor and the plastic pipe are reduced. On the other hand, the roller has a certain width, and the central position of the pipe may deviate due to vibration or other reasons in the production process. As long as the deviation of the position does not exceed half of the width of the roller, the contact head can be ensured to contact the outermost side of the pipe, so that the maximum outer diameter is accurately measured.
Preferably, the two sides of the rack are provided with support rods, and the fixed frame is installed on the support rods. The bracing piece is fixed with fixed frame's both sides, realizes stable connection between them, can not influence plastics tubular product simultaneously and pass fixed frame.
Preferably, the display is electrically connected with an alarm. The displays of the contact sensors on the opposite sides are electrically connected with the same alarm, and the alarm gives an alarm to prompt workers after the numerical values of the two displays are calculated by the controller and are not zero in addition.
The device is also used for realizing an online detection method for the outer diameter of the plastic pipe, and comprises the following steps:
the method comprises the following steps: calibrating the touch sensor; taking a calibration body with the side length being consistent with the length of the standard pipe diameter, and enabling the contact sensors in four directions to be in contact with the calibration body, and then enabling the detection values of the contact sensors to be zero;
step two: adjusting the motion direction of the object to be detected; adjusting the position of the rack, enabling the plastic pipe to be detected to penetrate through the fixed frame, and enabling the motion directions of the contact sensors to face the plastic pipe;
step three: monitoring on line; reading the readings of the four contact sensors after the four contact sensors are contacted with the surface of the plastic pipe;
step four: reading; the contact type sensor is connected with a display used for displaying a detection value, the readings of the contact type sensors on the opposite sides are added, and if the readings are positive numbers, the pipe diameter in the direction is larger than the standard pipe diameter; if the pipe diameter is negative, the pipe diameter in the direction is smaller than the standard pipe diameter; if the diameter of the pipe is zero, the pipe diameter in the direction is consistent with the standard pipe diameter.
Preferably, the touch sensors are all located on the center line of the fixed frame, and in the second step, the plastic pipe penetrates through the center of the fixed frame. The contact type sensor moves along the central line, and the plastic pipe penetrates through the center of the fixed frame, so that the contact type sensor can contact the maximum outer diameter of the plastic pipe as far as possible, and detection accuracy is improved.
Preferably, the contact sensor is a roller type contact sensor; in the third step, rolling along the surface of the plastic pipe. And during detection, the friction force between the touch sensor and the plastic pipe is reduced.
Compared with the prior art, the invention has the beneficial effects that: the detection assembly is simple in structure, the detection precision meets the production requirement through the outer diameter of the plastic pipe detected by the mechanical structure, meanwhile, the detection device is simple in structure and low in cost, and the detection method is simple and rapid.
Drawings
FIG. 1 is a schematic structural diagram of an online plastic pipe outer diameter detection device according to the present invention;
FIG. 2 is a schematic structural diagram of an online plastic pipe outer diameter detection device according to the present invention;
fig. 3 is a partially enlarged view of a position a of fig. 2.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
example 1
Fig. 1-2 show an embodiment of an online detection device for the outer diameter of a plastic pipe, which includes a rack 1, a fixed frame 2 mounted on the rack 1, and four detection assemblies 3 mounted on the fixed frame 2; the detection components 3 are distributed on four sides of the fixed frame 2 and form an angle of 90 degrees with each other, and the opposite detection components 3 are positioned on the same straight line; the detection assembly 3 comprises a contact sensor 301 and a driving assembly for driving the contact sensor 301 to move towards the center of the fixed frame 2; a display (not shown) for displaying the reading of the touch sensor 301 is connected to the touch sensor 301.
The driving assembly includes a driving module 302 connected to the touch sensor 301 and a positioning tool 303 for fixing the driving module 302 to the fixing frame 2. The positioning tool 303 fixes the driving module 302 on the fixed frame 2, so that the detection assembly 3 is convenient to mount and dismount and convenient to maintain.
Specifically, the driving module 302 is a cylinder, and the contact sensor 301 is connected to a cylinder rod of the cylinder. When the cylinder rod is retracted, the contact sensor 301 contracts, and the damage caused by mistaken collision with the plastic pipe is avoided. When the cylinder enters compressed air, the cylinder rod pushes the contact sensor 301 to move.
In order to adjust the position of the detection assembly 3, the detection assembly 3 on the opposite side is more easily positioned on the same straight line, the positioning tool 303 is provided with a mounting groove 304, and the fastener penetrates through the mounting groove 304 to fix the positioning tool 303 on the fixed frame 2. The positioning tool 303 can be adjusted in position by moving the mounting slot 304 along the fastener.
Specifically, the touch sensor 301 is a roller-type touch sensor 301. When the roller type contact sensor 301 is in contact with the plastic pipe, the roller type contact sensor is in rolling connection with the plastic pipe, so that friction between the roller type contact sensor and the plastic pipe is reduced, and further abrasion and movement resistance between the roller type contact sensor and the plastic pipe are reduced. On the other hand, the roller has a certain width, and the central position of the pipe may deviate due to vibration or other reasons in the production process. As long as the deviation of the position does not exceed half of the width of the roller, the contact head can be ensured to contact the outermost side of the pipe, so that the maximum outer diameter is accurately measured.
In addition, support rods 101 are provided at both sides of the frame 1, and the fixed frame 2 is mounted on the support rods 101. The supporting rod 101 fixes the two sides of the fixing frame 2, so that the fixing frame and the supporting rod are stably connected, and meanwhile, plastic pipes can not be influenced to penetrate through the fixing frame 2.
In this embodiment, the display is electrically connected to an alarm (not shown). The displays of the opposite side contact sensors 301 are electrically connected with the same alarm, and after the numerical values of the two displays are calculated by the controller and are not zero, the alarm gives an alarm to prompt a worker. The controller may synthesize the data of the touch sensor 301 for operation, which is not described herein, in a conventional manner.
The working principle or working process of the invention is as follows: the frame 1 is placed at a discharge port of a plastic pipe manufacturing device, and the four detection assemblies 3 are calibrated by using cubes with side lengths equal to the standard outer diameter of the plastic pipe 4. Specifically, the driving assembly drives the touch sensor 301 to move to the position of the cube, and after the touch sensor 301 contacts the surface of the cube, the touch sensor 301 is zeroed.
In the detection process, the plastic pipe 4 moves forward all the time, the contact sensor 301 keeps in contact with the plastic pipe all the time, and the outer diameter detection of the plastic pipe is completed on line.
Finely adjusting the position of the rack 1 to enable the produced plastic pipe 4 to pass through the center of the fixed frame 2, driving the contact sensor 301 to be in contact with the plastic pipe by the driving assembly, displaying the reading of the contact sensor 301 by the display at the moment, adding the readings of the contact sensors 301 on the opposite sides, and if the sum is positive, increasing the pipe diameter in the direction to be larger than the standard pipe diameter; if the pipe diameter is negative, the pipe diameter in the direction is smaller than the standard pipe diameter; if the diameter of the pipe is zero, the pipe diameter in the direction is consistent with the standard pipe diameter.
The beneficial effects of this embodiment: the detection assembly 3 is simple in structure, the detection precision meets the production requirement through the outer diameter of the plastic pipe detected by the mechanical structure, and meanwhile, the detection device is simple in structure and low in cost.
Example 2
An online detection method for the outer diameter of a plastic pipe comprises the following steps:
the method comprises the following steps: calibrating the touch sensor 301; taking a calibration body with the side length being consistent with the length of the standard pipe diameter, and enabling the contact sensors 301 in four directions to be in contact with the calibration body, and then enabling the detection values of the contact sensors 301 to be zero;
step two: adjusting the motion direction of the object to be detected; adjusting the position of the rack 1, enabling the plastic pipe to be detected to penetrate through the fixed frame 2, and enabling the motion directions of the contact sensors 301 to face the plastic pipe;
step three: monitoring on line; reading the readings of the four contact sensors 301 after the four contact sensors are contacted with the surface of the plastic pipe;
step four: reading; the detection numerical value of the contact sensor 301 is displayed through a display, the readings of the contact sensor 301 on the opposite side are added, and if the readings are positive, the pipe diameter in the direction is larger than the standard pipe diameter; if the pipe diameter is negative, the pipe diameter in the direction is smaller than the standard pipe diameter; if the diameter of the pipe is zero, the pipe diameter in the direction is consistent with the standard pipe diameter.
In one embodiment, the touch sensors 301 are all located on the center line of the fixed frame 2, and in step two, the plastic pipe passes through the center of the fixed frame 2. The touch sensor 301 moves along the center line, and the plastic pipe passes through the center of the fixed frame 2, so that the touch sensor 301 can touch the maximum outer diameter of the plastic pipe as much as possible, and detection accuracy is provided.
In one embodiment, the touch sensor 301 is a roller-type touch sensor 301; in step three, rolling along the surface of the plastic pipe. During detection, the friction between the touch sensor 301 and the plastic pipe is reduced.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An online plastic pipe outer diameter detection device is characterized by comprising a rack (1), a fixed frame (2) arranged on the rack (1) and a plurality of detection assemblies (3) arranged on the fixed frame (2); the detection assemblies (3) are distributed on four sides of the fixed frame (2) and form an angle of 90 degrees with each other, and the opposite detection assemblies (3) are positioned on the same straight line; the detection assembly (3) comprises a contact sensor (301) and a driving assembly for driving the contact sensor (301) to move towards the center of the fixed frame (2); the touch sensor (301) is connected with a display for displaying the reading of the touch sensor (301).
2. The online detection device for the outer diameter of the plastic pipe as claimed in claim 1, wherein the driving assembly comprises a driving module (302) connected with the contact sensor (301) and a positioning tool (303) for fixing the driving module (302) on the fixed frame (2).
3. The online detecting device for the outer diameter of the plastic pipe as claimed in claim 2, wherein the driving module (302) is a cylinder, and the contact sensor (301) is connected with a cylinder rod of the cylinder.
4. The online detection device for the outer diameter of the plastic pipe as claimed in claim 2, wherein the positioning tool (303) is provided with a mounting groove (304), and a fastener penetrates through the mounting groove (304) to fix the positioning tool (303) on the fixed frame (2).
5. The on-line plastic pipe outer diameter detection device as claimed in claim 1, wherein the touch sensor (301) is a roller type touch sensor.
6. The online detection device for the outer diameter of the plastic pipe as claimed in claim 1, wherein support rods (101) are arranged on two sides of the rack (1), and the fixed frame (2) is mounted on the support rods (101).
7. The online detecting device for the outer diameter of the plastic pipe as claimed in claim 1, wherein the display is electrically connected with an alarm.
8. An online detection method for the outer diameter of a plastic pipe is characterized by comprising the following steps:
the method comprises the following steps: calibrating a touch sensor (301); taking a calibration body with the side length consistent with the length of the standard pipe diameter, and enabling the contact sensors (301) in four directions to be in contact with the calibration body, and then enabling the detection values of the contact sensors (301) to be zero;
step two: adjusting the motion direction of the object to be detected; adjusting the position of the rack (1), enabling the plastic pipe to be detected to penetrate through the fixed frame (2), and enabling the motion directions of the contact sensors (301) to face the plastic pipe;
step three: monitoring on line; reading the readings of the four contact sensors (301) after the four contact sensors are contacted with the surface of the plastic pipe;
step four: reading; the detection value of the contact sensor (301) is displayed on a display, after the readings of the contact sensor (301) on the opposite side are added, if the readings are positive numbers, the pipe diameter in the direction is larger than the standard pipe diameter; if the pipe diameter is negative, the pipe diameter in the direction is smaller than the standard pipe diameter; if the diameter of the pipe is zero, the pipe diameter in the direction is consistent with the standard pipe diameter.
9. An online detection method for the outer diameter of the plastic pipe as claimed in claim 8, wherein the touch sensors (301) are all located on the central line of the fixed frame (2), and in the second step, the plastic pipe passes through the center of the fixed frame (2).
10. The online detection method for the outer diameter of the plastic pipe as claimed in claim 8, wherein the touch sensor (301) is a roller type touch sensor; in the third step, rolling along the surface of the plastic pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011422518.6A CN112556623A (en) | 2020-12-08 | 2020-12-08 | Online plastic pipe outer diameter detection device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011422518.6A CN112556623A (en) | 2020-12-08 | 2020-12-08 | Online plastic pipe outer diameter detection device and method |
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| CN112556623A true CN112556623A (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011422518.6A Pending CN112556623A (en) | 2020-12-08 | 2020-12-08 | Online plastic pipe outer diameter detection device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115307560A (en) * | 2022-10-12 | 2022-11-08 | 施莱德(山东)机械设备有限公司 | Steel bar diameter measuring jig |
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2020
- 2020-12-08 CN CN202011422518.6A patent/CN112556623A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115307560A (en) * | 2022-10-12 | 2022-11-08 | 施莱德(山东)机械设备有限公司 | Steel bar diameter measuring jig |
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