CN113932739A - PVC pipe outer diameter detection method and device - Google Patents
PVC pipe outer diameter detection method and device Download PDFInfo
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- CN113932739A CN113932739A CN202111166796.4A CN202111166796A CN113932739A CN 113932739 A CN113932739 A CN 113932739A CN 202111166796 A CN202111166796 A CN 202111166796A CN 113932739 A CN113932739 A CN 113932739A
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/08—Measuring arrangements characterised by the use of fluids for measuring diameters
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Abstract
The invention relates to the technical field of pipe outer diameter detection, and discloses a PVC pipe outer diameter detection method and a device, wherein a channel is formed between an upper shell and a lower shell, the upper shell is connected with the lower shell in a vertically movable manner, a negative pressure environment is formed in the channel, and a negative pressure value in the channel is detected; if the outer diameter of the PVC pipe is smaller than the standard outer diameter, the gap between the upper shell and the lower shell is reduced, so that the negative pressure value detected in the channel is increased; therefore, the method and the device can know whether the outer diameter of the PVC pipe is too large or too small only by detecting the negative pressure in the channel, do not need manual observation, reduce the labor intensity, improve the efficiency, and can detect all produced pipes and the outer diameters of all parts of the pipes to realize full detection.
Description
Technical Field
The invention relates to the technical field of pipe outer diameter detection, in particular to a PVC pipe outer diameter detection method and device.
Background
The PVC pipe is widely applied, and the outer diameter of the PVC pipe needs to be detected for a PVC pipe production line connected with an automatic packing machine so as to prevent unqualified products from flowing into the market. At present, the detection of the outer diameter of the PVC pipe is mainly carried out by manually utilizing a vernier caliper. The measuring mode has the disadvantages of complex operation, long measuring period, serious influence on the production efficiency, incapability of meeting the requirement of the conventional rapid production rhythm, incapability of measuring specific numerical values one by one and only capability of performing selective inspection, and the result that unqualified products easily flow into the market.
Chinese utility model CN206347952U (the public day is 2017, 07 month 21 days) discloses a synchronous detection instrument of inside and outside footpath of steel pipe, including the internal diameter inspection stick, external diameter inspection cover, handle, spring and fixation nut, handle left end and internal diameter inspection stick fixed connection, the internal diameter inspection stick all suits in the external diameter inspection cover with the handle left end, the mobilizable external diameter inspection cover that passes of handle right-hand member, fixation nut connects soon on the outer handle of external diameter inspection cover, the spring suit is on the handle between external diameter inspection cover and fixation nut, the internal diameter of steel pipe is detected to the internal diameter inspection stick detection, the external diameter inspection cover detects the external diameter of waiting to detect the steel pipe. This patent needs the manual work to observe whether the steel pipe top is in between the A point and the B point of external diameter inspection cover and whether the manual work observes external diameter inspection cover and retreats, and intensity of labour is big, and there is certain error rate in manual observation. In addition, this patent needs to be static with the steel pipe, then examines at the one end of steel pipe with the outer diameter inspection cover, can not directly use the instrument setting of this patent at the end that the tubular product was produced the line, and in addition, the instrument of this patent can only detect the external diameter at tubular product both ends, can not detect the great or less unqualified tubular product of middle part external diameter.
Disclosure of Invention
The invention aims to provide a PVC pipe outer diameter detection method and a PVC pipe outer diameter detection device which are accurate in detection, high in efficiency and capable of carrying out full detection on all pipes and the outer diameters of all positions of each pipe.
In order to achieve the purpose, the invention provides a PVC pipe outer diameter detection method, which comprises the following steps:
connecting the upper shell with the lower shell in a vertically movable manner, and forming a channel for PVC pipes to pass through between the upper shell and the lower shell;
vacuumizing the channel to form negative pressure in the channel;
the method comprises the following steps of (1) passing a PVC pipe with a standard outer diameter through a channel, detecting a negative pressure value in the channel when the PVC pipe passes through the channel, and taking the detected negative pressure value as a standard value;
when the PVC pipe to be detected passes through the channel, detecting a negative pressure value in the channel, comparing the detected air pressure value with a standard value, and if the detected negative pressure value is smaller than the standard value, determining that the outer diameter of the PVC pipe to be detected is larger than the standard outer diameter of the PVC pipe; and if the detected negative pressure value is larger than the standard value, the outer diameter of the PVC pipe to be detected is smaller than the standard outer diameter of the PVC pipe.
The invention also provides a PVC pipe outer diameter detection device which comprises a support, an upper shell, a lower shell, a negative pressure device and a negative pressure detection device, wherein the upper shell and the lower shell are respectively provided with a groove, the lower shell is connected with the support, the upper shell is connected with the support in a vertically movable manner, the upper shell and the lower shell are arranged up and down, a channel for PVC pipes to pass through is formed between the upper shell and the lower shell, and the negative pressure device and the negative pressure detection device are both communicated with the channel.
Preferably, the diameter of the middle part of the channel is larger than the diameters of the two ports of the channel, and the negative pressure device and the negative pressure detection device are communicated with the middle part of the channel.
As a preferred scheme, the upper shell and the lower shell respectively comprise a shell plate, a front baffle, a rear baffle and two connecting plates, the shell plate is semi-cylindrical, the front baffle and the rear baffle are semi-annular, the front baffle and the rear baffle are respectively connected to two ends of the shell plate, the two connecting plates are rectangular plates and are respectively connected to two sides of the shell plate, one side of each connecting plate is located in the shell plate, two ends of each connecting plate are respectively connected with the front baffle and the rear baffle, the other side of each connecting plate extends out of the shell plate, and the upper shell and the lower shell are respectively connected with the support through the respective connecting plates.
As preferred scheme, the support includes mounting panel and two supporting beam, the mounting panel is equipped with the through-hole that can supply PVC tubular product to pass through, two supporting beam all connects perpendicularly on the mounting panel and be located the both sides of through-hole, be equipped with rather than the vertically spliced pole on the supporting beam, go up the casing with be equipped with the connecting hole on the connecting plate of casing down, the connecting plate passes through the connecting hole with spliced pole plug-in connection, the connecting plate of casing is located down the below of the connecting plate of casing.
As the preferred scheme, still include pinch roller and pinch roller support, go up the casing with the both ends of casing down all are connected with the pinch roller support, the pinch roller rotationally connects on pressure bracket.
As a preferred scheme, a circle of clamping grooves are formed in the wheel surface of the pressing wheel, and the clamping grooves are V-shaped grooves.
Preferably, an included angle between the rotating shaft of the pressing wheel and the vertical direction forms an acute angle.
Preferably, the diameter of the front port of the channel is gradually reduced from front to back.
Preferably, the negative pressure detection device further comprises an alarm and a controller, and the negative pressure detection device and the alarm are respectively in communication connection with the controller.
Compared with the prior art, the invention has the beneficial effects that:
according to the method and the device, the channel is formed between the upper shell and the lower shell, the upper shell is connected with the lower shell in a vertically movable mode, a negative pressure environment is formed in the channel, and the negative pressure value in the channel is detected at the same time; if the outer diameter of the PVC pipe is smaller than the standard outer diameter, the upper shell can be lowered to be in contact with the PVC pipe, so that the gap between the upper shell and the lower shell is reduced, the contact between the interior of the channel and the external environment is reduced, the balance between the external atmospheric pressure and the negative pressure in the channel is less, and the negative pressure value detected in the channel is increased; therefore, the method and the device can know whether the outer diameter of the PVC pipe is too large or too small only by detecting the negative pressure in the channel, do not need manual observation, reduce the labor intensity and improve the efficiency; in addition, the device can be directly arranged at the tail end of a pipe production line, pipes output by the production line continuously pass through a channel between the upper shell and the lower shell, static pipes are not needed, all produced pipes can be detected, full detection is realized, the outer diameters of all parts of the pipes can be detected when the pipes pass through the channel, unqualified pipes with larger or smaller outer diameters in the middle can be found, and the reject ratio of the pipes flowing into the market is reduced.
Drawings
Fig. 1 is a flowchart of a PVC pipe outer diameter detection method according to a first embodiment of the present invention.
Fig. 2 is a schematic structural view of a PVC pipe outer diameter detection apparatus according to a second embodiment of the present invention.
Fig. 3 is a side view of a PVC pipe outer diameter detection apparatus according to a second embodiment of the present invention.
Fig. 4 is a front view of a PVC pipe outer diameter detection apparatus according to a second embodiment of the present invention.
Fig. 5 is a cross-sectional view at fig. 4A-a.
In the drawings, 1-upper housing; 2-a lower shell; 3-a negative pressure device; 4-negative pressure detection means; 5-a channel; 6-shell plate; 7-front baffle; 8-a rear baffle; 9-a connecting plate; 10-mounting a plate; 11-a support beam; 12-a through hole; 13-connecting column; 14-a counterweight cylinder; 15-pressing wheel; 16-a pinch roller bracket; 17-a card slot; 18-an alarm; 19-a controller; 20-touch screen.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1, a method for detecting an outer diameter of a PVC pipe according to a preferred embodiment of the present invention includes the following steps:
connecting the upper shell with the lower shell in a vertically movable manner, and forming a channel for PVC pipes to pass through between the upper shell and the lower shell;
vacuumizing the channel to form negative pressure in the channel;
the method comprises the following steps of (1) passing a PVC pipe with a standard outer diameter through a channel, detecting a negative pressure value in the channel when the PVC pipe passes through the channel, and taking the detected negative pressure value as a standard value;
when the PVC pipe to be detected passes through the channel, detecting a negative pressure value in the channel, comparing the detected air pressure value with a standard value, and if the detected negative pressure value is smaller than the standard value, determining that the outer diameter of the PVC pipe to be detected is larger than the standard outer diameter of the PVC pipe; and if the detected negative pressure value is larger than the standard value, the outer diameter of the PVC pipe to be detected is smaller than the standard outer diameter of the PVC pipe.
The PVC pipe outer diameter detection method of the embodiment only needs to detect the negative pressure in the passage when the pipe passes through, then compares with the negative pressure in the passage when the standard outer diameter pipe passes through, can obtain whether the outer diameter of the PVC pipe is too large or too small, detects accurately, has high efficiency, can detect the passing pipe completely, can find the unqualified pipe with the pipe body middle part outer diameter too large or too small, and improves the detection comprehensiveness.
Example two
As shown in fig. 2 to 5, a PVC pipe outer diameter detection device according to a preferred embodiment of the present invention includes a bracket, an upper housing 1, a lower housing 2, a negative pressure device 3, and a negative pressure detection device 4, where the upper housing 1 and the lower housing 2 have grooves, the lower housing 2 is connected to the bracket, the upper housing 1 is connected to the bracket in a manner of moving up and down, the upper housing 1 and the lower housing 2 are disposed up and down, so that a channel 5 for passing a PVC pipe is formed between the upper housing 1 and the lower housing 2, and the negative pressure device 3 and the negative pressure detection device 4 are both communicated with the channel 5. According to the device, the channel 5 is formed between the upper shell 1 and the lower shell 2, the upper shell 1 is connected with the lower shell 2 in a vertically movable mode, a negative pressure environment is formed in the channel 5, meanwhile, the negative pressure value in the channel 5 is detected, when PVC pipes pass through the channel 5, if the outer diameter of the PVC pipes is larger than a standard outer diameter, the PVC pipes can jack the upper shell 1, the gap between the upper shell 1 and the lower shell 2 is enlarged, the contact between the channel 5 and the external environment is increased, the external atmospheric pressure and the negative pressure of the channel 5 are balanced, and therefore the negative pressure value detected in the channel 5 is reduced; if the outer diameter of the PVC pipe is smaller than the standard outer diameter, the upper shell 1 can be lowered to be in contact with the PVC pipe, so that the gap between the upper shell 1 and the lower shell 2 is reduced, the contact between the interior of the channel 5 and the external environment is reduced, the balance between the external atmospheric pressure and the negative pressure in the channel 5 is less, and the negative pressure value detected in the channel 5 is increased; therefore, the device of the embodiment can know whether the outer diameter of the PVC pipe is too large or too small only by detecting the negative pressure in the channel 5, manual observation is not needed, the labor intensity is reduced, and the efficiency is improved; in addition, the device of this embodiment can directly locate the tubular product and produce the end of line, and the tubular product of producing the output constantly passes through passageway 5 between last casing 1 and the lower casing 2, need not static tubular product, can detect all tubular products of production, realizes examining entirely to when tubular product passes through passageway 5, can detect the external diameter of tubular product each department, can find the great or less unqualified tubular product of middle part external diameter, reduce the defective rate of the tubular product that flows into market. The negative pressure device 3 of this embodiment is a vacuum air source, and the negative pressure detection device 4 is a negative pressure sensor.
Further, the diameter of the middle part of the channel 5 is larger than the diameters of the two ports of the channel, and the negative pressure device 3 and the negative pressure detection device 4 are communicated with the middle part of the channel 5. When the PCV pipe passes through the passage 5, because the diameter of the middle part of the passage 5 is larger, a cavity is formed between the pipe and the upper shell 1 and between the pipe and the lower shell 2, the cavity is relatively closed, larger negative pressure can be formed, when the outer diameter of the passing PVC pipe changes, the detection value of the negative pressure detection device 4 changes more obviously, and the detection precision is improved.
In this embodiment, the upper shell 1 and the lower shell 2 each include a shell 6, a front baffle 7, a rear baffle 8 and two connecting plates 9, the shell 6 is a semi-cylindrical shape, the front baffle 7 and the rear baffle 8 are semi-annular, the front baffle 7 and the rear baffle 8 are respectively connected to two ends of the shell 6, the two connecting plates 9 are rectangular plates and are respectively connected to two sides of the shell 6, one side of each connecting plate 9 is located in the shell 6, two ends of each connecting plate 9 are respectively connected to the front baffle 7 and the rear baffle 8, the other side of each connecting plate 9 extends out of the shell 6, and the upper shell 1 and the lower shell 2 are respectively connected to the bracket through the respective connecting plates 9. The middle diameter of the formed channel 5 is larger than the diameters of the two ends of the formed channel 5 through the connection of the shell plates 6, the front baffle plates 7, the rear baffle plates 8 and the connecting plates 9, namely, the front ports of the channel 5 formed by the upper shell 1 and the lower shell 2 are formed by the respective concave front baffle plates 7, the rear ports are formed by the respective concave rear baffle plates 8, and the middle of the channel 5 is a space between the shell plates 6 of the upper shell 1 and the shell plates 6 of the lower shell 2. The gap between the upper case 1 and the lower case 2 is a distance in the vertical direction between the connection plate 9 of the upper case 1 and the connection plate 9 of the lower case 2.
The support of this embodiment includes mounting panel 10 and two supporting beam 11, mounting panel 10 is equipped with the through-hole 12 that can supply PVC tubular product to pass through, two supporting beam 11 all connect perpendicularly on mounting panel 10 and are located the both sides of through-hole 12, be equipped with rather than vertically spliced pole 13 on supporting beam 11, upward be equipped with the connecting hole on casing 1 and casing 2's the connecting plate 9 down, connecting plate 9 passes through connecting hole and spliced pole 13 plug-in connection, casing 2's connecting plate 9 is located the below of casing 1's connecting plate 9 down. One side of the connecting plate 9 of the upper shell 1 and the lower shell 2, which protrudes out of the shell plate 6, is lapped on the supporting beam 11, so that the mounting and the dismounting are convenient, and the connecting column 13 can guide the up-and-down movement of the upper shell 1. In addition, the device of this embodiment further includes a counterweight barrel 14, the counterweight barrel 14 is sleeved on the connecting column 13, and the counterweight barrel 14 is located above the connecting plate 9 of the upper shell 1. Under the action of gravity of the counterweight cylinder 14, the upper shell 1 descends and can be attached to a PVC pipe, so that detection is more accurate, and the phenomenon that the upper shell 1 is blocked after being jacked up by the PVC pipe and cannot descend or descends too slowly to cause missed detection can be avoided.
In addition, the device of this embodiment still includes pinch roller 15 and pinch roller support 16, and the both ends of going up casing 1 and casing 2 down all are connected with pinch roller support 16, and pinch roller 15 rotationally connects on pressure bracket 16, is favorable to PVC tubular product to get into smoothly and pass through between last casing 1 and the casing 2 down. The wheel surface of the pinch roller 15 of the embodiment is provided with a circle of clamping grooves 17, and the clamping grooves 17 are V-shaped grooves, so that the pinch roller 15 can be attached to the outer walls of PVC pipes with various outer diameters. In addition, the axis of rotation of pinch roller 15 of this embodiment becomes the acute angle with vertical direction's contained angle, makes the setting of pinch roller 15 slope, increases pinch roller 15's quantity to can make the setting of pinch roller 15 symmetry, prevent that the removal of PVC tubular product is not steady. In this embodiment, 2 press wheels 15 are connected to both ends of the upper casing 1 and the lower casing 2, that is, 4 press wheels 15 are arranged at one end, and the 4 press wheels 15 at the end are symmetrically arranged. The diameter of the front port of the channel 5 of this embodiment is gradually reduced from front to back, and the diameter of a port of the channel 5 close to the mounting plate 10 is large, so that the PVC pipe can more easily enter the channel 5, and the front port of the channel 5 of this embodiment is formed by the recess of the front baffle 7 of the upper shell 1 and the recess of the front baffle 7 of the lower shell 2, that is, the openings of the front baffle 7 of the upper shell 1 and the front baffle 7 of the lower shell 2 are bell mouths.
The device of this embodiment still includes alarm 18 and controller 19, negative pressure detection device 4, alarm 18 respectively with 19 communication connection of controller, negative pressure detection device 4 sends the detected signal to controller 19, controller 19 compares the detected value with the negative pressure value when standard PVC tubular product passes through, if exceed certain range, controller 19 sends the signal to alarm 18 and reports to the police, informs the staff to take out the defective work to with qualified tubular product and unqualified tubular product separately. In this embodiment, the negative pressure values in the passage 5 when the plurality of standard pipes pass are obtained, the obtained data are analyzed, a maximum negative pressure value and a minimum negative pressure value are set, the qualified range is set between the maximum negative pressure value and the minimum negative pressure value, and if the maximum negative pressure value is higher than the maximum negative pressure value or the minimum negative pressure value is lower than the minimum negative pressure value, the pipe is determined to be unqualified. The alarm 19 of the present embodiment is an audible and visual alarm, and the controller 19 is a PLC system. In addition, the device of the embodiment further comprises a touch screen 20, the touch screen 20 is in communication connection with the controller 19, and man-machine interaction with the controller 19 can be achieved through the touch screen 20.
The working process of the invention is as follows: with last casing 1 and casing 2 installation in the production line end of PVC tubular product, the production line end of PVC tubular product can be continuously through the tubular product of a root, consequently, tubular product can pass through in the passageway 5 between last casing 1 and the casing 2 down. If the outer diameter of the PVC pipe is larger than that of the standard pipe, the pipe can jack the upper shell 1 when passing through the PVC pipe, so that the gap between the upper shell 1 and the lower shell 2 is enlarged, the inside of the channel 5 is balanced with the atmospheric pressure of the external environment, and the negative pressure value in the channel 5 is reduced; if the external diameter of PVC tubular product is less than the external diameter of standard tubular product, when passing through, go up casing 1 and do not support and fall to pasting mutually with the PVC tubular product that passes through, make the clearance between last casing 1 and the lower casing 2 diminish, reduced the inside and external environment's of passageway 5 contact, it is more airtight, lead to the negative pressure value grow in the passageway 5. Therefore, whether the outer diameter is qualified or not can be known by detecting the negative pressure value in the channel 5 when the pipe passes through and comparing the negative pressure value with the negative pressure value when the standard pipe passes through.
To sum up, the embodiment of the invention provides a method and a device for detecting the outer diameter of a PVC pipe, wherein a channel 5 is formed between an upper shell 1 and a lower shell 2, the upper shell 1 is connected with the lower shell 2 in a manner of moving up and down, a negative pressure environment is formed in the channel 5, and a negative pressure value in the channel 5 is detected at the same time, when the PVC pipe passes through the channel 5, if the outer diameter of the PVC pipe is larger than a standard outer diameter, the PVC pipe jacks up the upper shell 1, so that a gap between the upper shell 1 and the lower shell 2 is enlarged, contact between the channel 5 and the external environment is increased, and external atmospheric pressure and negative pressure of the channel 5 are balanced, so that the negative pressure value detected in the channel 5 is reduced; if the outer diameter of the PVC pipe is smaller than the standard outer diameter, the upper shell 1 can be lowered to be in contact with the PVC pipe, so that the gap between the upper shell 1 and the lower shell 2 is reduced, the contact between the interior of the channel 5 and the external environment is reduced, the balance between the external atmospheric pressure and the negative pressure in the channel 5 is less, and the negative pressure value detected in the channel 5 is increased; therefore, the device of the embodiment can know whether the outer diameter of the PVC pipe is too large or too small only by detecting the negative pressure in the channel 5, manual observation is not needed, the labor intensity is reduced, and the efficiency is improved; in addition, the device of this embodiment can directly locate the tubular product and produce the end of line, and the tubular product of producing the output constantly passes through passageway 5 between last casing 1 and the lower casing 2, need not static tubular product, can detect all tubular products of production, realizes examining entirely to when tubular product passes through passageway 5, can detect the external diameter of tubular product each department, can find the great or less unqualified tubular product of middle part external diameter, reduce the defective rate of the tubular product that flows into market. .
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. The method for detecting the outer diameter of the PVC pipe is characterized by comprising the following steps:
connecting the upper shell with the lower shell in a vertically movable manner, and forming a channel for PVC pipes to pass through between the upper shell and the lower shell;
vacuumizing the channel to form negative pressure in the channel;
the method comprises the following steps of (1) passing a PVC pipe with a standard outer diameter through a channel, detecting a negative pressure value in the channel when the PVC pipe passes through the channel, and taking the detected negative pressure value as a standard value;
when the PVC pipe to be detected passes through the channel, detecting a negative pressure value in the channel, comparing the detected air pressure value with a standard value, and if the detected negative pressure value is smaller than the standard value, determining that the outer diameter of the PVC pipe to be detected is larger than the standard outer diameter of the PVC pipe; and if the detected negative pressure value is larger than the standard value, the outer diameter of the PVC pipe to be detected is smaller than the standard outer diameter of the PVC pipe.
2. The utility model provides a PVC tubular product external diameter detection device, its characterized in that, includes support, goes up casing (1), casing (2), negative pressure device (3) and negative pressure detection device (4) down, go up casing (1) with casing (2) all have the recess down, down casing (2) with leg joint, go up casing (1) can reciprocate ground with leg joint, go up casing (1) with casing (2) set up from top to bottom down, make go up casing (1) with form passageway (5) that can supply PVC tubular product to pass through down between casing (2), negative pressure device (3) with negative pressure detection device (4) all with passageway (5) intercommunication.
3. The PVC pipe outer diameter detection device according to claim 2, wherein the diameter of the middle part of the channel (5) is larger than the diameters of the two ports of the channel, and the negative pressure device (3) and the negative pressure detection device (4) are communicated with the middle part of the channel (5).
4. The PVC pipe outer diameter detection device according to claim 3, wherein the upper shell (1) and the lower shell (2) each comprise a shell plate (6), a front baffle plate (7), a rear baffle plate (8) and two connecting plates (9), the shell plate (6) is semi-cylindrical, the front baffle (7) and the rear baffle (8) are semi-annular, the front baffle (7) and the rear baffle (8) are respectively connected with two ends of the shell plate (6), the two connecting plates (9) are rectangular plates and are respectively connected with two sides of the shell plate (6), one side of the connecting plate (9) is positioned in the shell plate (6), and two ends of the connecting plate are respectively connected with the front baffle plate (7) and the rear baffle plate (8), the other side of the connecting plate (9) extends out of the shell plate (6), and the upper shell (1) and the lower shell (2) are respectively connected with the bracket through the respective connecting plate (9).
5. The PVC tubular product external diameter detection device of claim 4, characterized in that, the support includes mounting panel (10) and two supporting beam (11), mounting panel (10) are equipped with through-hole (12) that can supply PVC tubular product to pass through, two supporting beam (11) all connect perpendicularly on mounting panel (10) and are located the both sides of through-hole (12), be equipped with rather than vertically spliced pole (13) on supporting beam (11), go up casing (1) with be equipped with the connecting hole on connecting plate (9) of casing (2) down, connecting plate (9) pass through the connecting hole with spliced pole (13) plug-in connection, connecting plate (9) of casing (2) are located down the below of connecting plate (9) of last casing (1).
6. The PVC pipe outer diameter detection device according to claim 2, further comprising a pinch roller (15) and a pinch roller bracket (16), wherein the pinch roller bracket (16) is connected to both ends of the upper casing (1) and the lower casing (2), and the pinch roller (15) is rotatably connected to the pressure bracket.
7. The PVC pipe outer diameter detection device according to claim 6, wherein a circle of clamping grooves (17) are formed in the wheel surface of the pressing wheel (15), and the clamping grooves (17) are V-shaped grooves.
8. The PVC pipe outer diameter detection device is characterized in that the included angle between the rotating shaft of the pressing wheel (15) and the vertical direction is an acute angle.
9. The PVC pipe outer diameter detection device according to claim 2, wherein the diameter of the front port of the channel (5) is gradually reduced from front to back.
10. The PVC pipe outer diameter detection device according to claim 2, further comprising an alarm (18) and a controller (19), wherein the negative pressure detection device (4) and the alarm (18) are respectively in communication connection with the controller (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111166796.4A CN113932739A (en) | 2021-09-30 | 2021-09-30 | PVC pipe outer diameter detection method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111166796.4A CN113932739A (en) | 2021-09-30 | 2021-09-30 | PVC pipe outer diameter detection method and device |
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| CN113932739A true CN113932739A (en) | 2022-01-14 |
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| CN202111166796.4A Pending CN113932739A (en) | 2021-09-30 | 2021-09-30 | PVC pipe outer diameter detection method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116020758A (en) * | 2023-03-27 | 2023-04-28 | 金纬机械常州有限公司 | PVC pipe shaping detection device |
| CN117383017A (en) * | 2023-11-01 | 2024-01-12 | 江苏京生管业有限公司 | Plastic tubing model pastes seal device |
-
2021
- 2021-09-30 CN CN202111166796.4A patent/CN113932739A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116020758A (en) * | 2023-03-27 | 2023-04-28 | 金纬机械常州有限公司 | PVC pipe shaping detection device |
| CN117383017A (en) * | 2023-11-01 | 2024-01-12 | 江苏京生管业有限公司 | Plastic tubing model pastes seal device |
| CN117383017B (en) * | 2023-11-01 | 2024-05-28 | 江苏京生管业有限公司 | Plastic tubing model pastes seal device |
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