CN110665693A - Multi-station spraying device for inner wall and outer wall of pipe fitting - Google Patents
Multi-station spraying device for inner wall and outer wall of pipe fitting Download PDFInfo
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- CN110665693A CN110665693A CN201911078295.3A CN201911078295A CN110665693A CN 110665693 A CN110665693 A CN 110665693A CN 201911078295 A CN201911078295 A CN 201911078295A CN 110665693 A CN110665693 A CN 110665693A
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- pipe fitting
- capacitor
- wall
- variable resistor
- spraying device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
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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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention provides a multi-station pipe fitting inner and outer wall spraying device, which comprises a spraying device, a spraying device and a spraying device, wherein the spraying device comprises a spraying device body; the pipe fitting conveying device comprises a conveying trolley and a conveying chain, wherein the conveying chain moves linearly under the driving of a motor, the conveying trolley is fixedly connected with the conveying chain, and the conveying trolley moves along a preset track under the driving of the conveying chain; the pipe fitting centering device is connected with the starting end of the conveying chain; the inner wall spraying machine is arranged at the downstream of the pipe fitting centering device along the movement direction of the conveying chain and comprises a pipe fitting inner wall spraying device; the outer wall spouts the machine, along the direction of motion of conveying chain set up in the low reaches that the machine was spouted to the inner wall, the outer wall spouts the machine upper end and is equipped with the spray treatment device. The multi-station automatic spraying device disclosed by the invention is used for spraying the inner wall and the outer wall of the pipe fitting in different stations in a multi-station automatic conveying mode, does not need the field operation of operators in the whole spraying process, can be used for automatically spraying, and is energy-saving, environment-friendly and high in automation degree.
Description
Technical Field
The invention relates to the technical field of spraying equipment, in particular to a multi-station spraying device for inner and outer walls of a pipe fitting.
Background
At present, various pipelines, such as water supply and drainage pipelines, heat pipelines, gas pipelines, oil pipelines and the like, are manually operated when internal and external spray coatings are manufactured. The pipe fitting is conveyed into the inner spraying machine for inner wall spraying through manual operation, and is manually transferred onto the outer wall spraying machine for outer wall spraying after the spraying is finished.
The production device causes poor manual operation working environment and unstable quality completely depending on the control of operators. The spraying device is complex in operation, not beneficial to efficient intensive management of environmental protection, energy conservation, resources and the like, low in production rate, unstable in quality, high in energy consumption, poor in operation environment, harmful to the health of operators and low in automation degree.
Disclosure of Invention
The invention aims to provide a multi-station spraying device for the inner wall and the outer wall of a pipe fitting to solve the problems.
In order to achieve the purpose, the invention provides the following technical scheme: a multi-station spraying device for the inner wall and the outer wall of a pipe fitting comprises a spraying device;
the pipe fitting conveying device comprises a conveying trolley and a conveying chain, wherein the conveying chain moves linearly under the driving of a motor, the conveying trolley is fixedly connected with the conveying chain, the conveying trolley moves along a preset track under the driving of the conveying chain, and a pipe fitting centering device, an inner wall spraying machine and an outer wall spraying machine are sequentially arranged on the preset track of the conveying chain;
the pipe fitting centering device is connected with the starting end of the conveying chain;
the inner wall spraying machine is arranged at the downstream of the pipe fitting centering device along the movement direction of the conveying chain and comprises a pipe fitting inner wall spraying device;
the outer wall spouts the machine, along the direction of motion of conveying chain set up in the low reaches that the machine was spouted to the inner wall, the outer wall spouts the machine upper end and is equipped with the spray treatment device.
As an improvement of the present invention, the pipe centering device includes:
a chassis;
the pipe fitting placing table is fixedly arranged at the upper end of the underframe, and at least two pipe fitting clamping assemblies are arranged on the upper surface of the pipe fitting placing table in parallel;
the pipe fitting clamping assembly penetrates through the pipe fitting placing table, the driving end of the pipe fitting clamping assembly is arranged on the lower end face of the pipe fitting placing table and fixed on the underframe through the frame plate, the clamping end of the pipe fitting clamping assembly is arranged on the upper end face of the pipe fitting placing table, and the clamping end is in transmission connection with the driving end.
As an improvement of the present invention, the tubular gripping assembly comprises:
the fixing frame is positioned below the pipe fitting placing table and fixedly connected with the frame plate;
the driving screw is in threaded connection with the fixed frame, one end of the driving screw is in transmission connection with a power source, and the other end of the driving screw is fixedly provided with a linkage bridge;
the arc centre gripping arm, the one end axis symmetry of two arc centre gripping arms articulates the both ends of mount, the guide way has still been seted up on the arm face of arc centre gripping arm, fixes the sliding bolt at the both ends of linkage bridge with the guide way cooperation is connected.
As an improvement of the invention, the other end of the arc-shaped clamping arm is provided with a maintaining plate, and the length direction of the maintaining plate is consistent with the length direction of the pipe fitting.
As an improvement of the invention, the middle part of the linkage bridge is also provided with a maintaining plate, one end of the maintaining plate, which is contacted with the pipe fitting, is provided with an outer arc surface, aligning flanges are equidistantly distributed on the outer arc surface, and a groove formed between the aligning flanges is contacted with the outer peripheral surface of the pipe fitting.
As an improvement of the invention, one end of the maintaining plate is threaded with a pressing screw, and a conical pressing head is arranged at one end of the pressing screw, which faces to the pipe fitting.
As an improvement of the present invention, a piezoelectric sensor is disposed at an end of the conical ram 2314 contacting the pipe 600, a deformation sensor is disposed on a side wall of the conical ram 2314, and the piezoelectric sensor and the deformation sensor are connected to a same control circuit.
As an improvement of the invention, the control circuit comprises a signal transmission circuit, the signal transmission circuit comprises an input circuit, a differential amplification circuit, a bias common source gain circuit and an output circuit,
the input circuit includes:
the first input end B1 is sequentially connected with an inductor I1 and a capacitor C1 in series;
the second input end B2 is sequentially connected in series with an inductor I2 and a capacitor C2;
two ends of the variable resistor R1 are respectively connected with one end of the capacitor C1 which is not connected with the inductor I1 and one end of the capacitor C2 which is not connected with the inductor I2, and the resistor head is connected with the capacitor C3 in series and then grounded;
the differential amplifier circuit includes:
a transistor M1, the grid of which is connected with one end of the variable resistor R1 connected with the capacitor C1, the drain of which is grounded, and the source of which is connected with one end of the variable resistor R1 connected with the capacitor C2 through the capacitor C4;
a transistor M2, a gate of which is connected to one end of the variable resistor R1 connected to the capacitor C1, a drain of which is grounded, and a source of which is connected to one end of the capacitor C5 and one end of the variable resistor R2, respectively;
a transistor M3 having a gate connected to one end of the variable resistor R1 connected to the capacitor C2, a gate connected to the source of the transistor M1 via the capacitor C4, a drain connected to ground, and a source connected to one end of the variable resistor R2;
a transistor M4, a gate of which is connected to the end of the variable resistor R1 connected to the capacitor C2, a drain of which is grounded, and a source of which is connected to the capacitor C5 and the end of the variable resistor R2 not connected to the transistor M2, respectively;
the variable resistor R2 is connected with the resistor head to the ground;
the bias common-source gain circuit comprises:
a transistor M5 having a gate connected to one end of the variable resistor R2 connection transistor M2 through a capacitor C6, a resistor R3 through a capacitor C8, a drain connected to ground, and a source connected to one end of the variable resistor R5;
a transistor M6 having a gate connected to the end of the variable resistor R2 not connected to the transistor M2 through the capacitor C7, a resistor R4 through the capacitor C9, a drain connected to ground, and a source connected to the end of the variable resistor R5 not connected to the transistor M5;
the variable resistor R5 is connected with the resistor head to the ground;
the output circuit includes:
one end of the capacitor C10 is connected with the resistor R3 and the tuning variable capacitor Z1, and the other end of the capacitor C10 is connected with the inductor I3;
one end of the capacitor C11 is connected with the resistor R4 and the tuning variable capacitor Z1, and the other end of the capacitor C11 is connected with the inductor I4;
the output end T1 is connected with the inductor I3;
and the output end T2 is connected with the inductor I4.
As a modification of the present invention, the spray treatment device 500 includes an exhaust duct 510 and a fan 520, one end of the exhaust duct 510 is fixedly disposed above the outer wall sprayer 400, and the fan 520 is communicated with the other end of the exhaust duct 510.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the pipe centering device of the present invention;
FIG. 3 is a front view of the tubular gripping apparatus of the present invention;
FIG. 4 is a left side view of the tubular gripping apparatus of the present invention;
FIG. 5 is an enlarged schematic view of FIG. 4 at A;
fig. 6 is a signal transmission circuit of the control circuit.
The components in the figure are:
100-pipe conveying device, 110-conveying trolley, 120-conveying chain,
200-pipe centering device, 210-base frame, 220-pipe placing table, 230-pipe clamping assembly, 231-frame plate, 232-fixing frame, 233-driving screw, 234-motor, 235-linkage bridge, 236-arc clamping arm, 237-guide groove, 238-sliding bolt, 239-dimension plate, 2310-extrados surface, 2311-alignment flange, 2312-groove, 2313-aligning screw, 2314-conical pressure head,
300-an inner wall spraying machine,
400-an outer wall spraying machine,
500-spray treatment device, 510-exhaust pipe, 520-blower,
600-pipe fitting.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Referring to fig. 1, a multi-station spraying device for spraying inner and outer walls of a pipe fitting comprises;
the pipe fitting conveying device 100 comprises a conveying trolley 110 and a conveying chain 120, wherein the conveying chain 120 is driven by a motor 130 to move linearly, the conveying trolley 110 is fixedly connected with the conveying chain 120, the conveying trolley 110 is driven by the conveying chain 120 to move along a preset track, and a pipe fitting centering device 200, an inner wall spraying machine 300 and an outer wall spraying machine 400 are sequentially arranged on the preset track of the conveying chain 120;
a pipe centering device 200 connected to the beginning end of the conveying chain 120;
the inner wall spraying machine 300 is arranged downstream of the pipe fitting centering device 200 along the movement direction of the conveying chain 120, and the inner wall spraying machine 300 comprises a pipe fitting inner wall spraying device 310;
and the outer wall spraying machine 400 is arranged at the downstream of the inner wall spraying machine 300 along the movement direction of the conveying chain 120, and the upper end of the outer wall spraying machine 400 is provided with a spraying treatment device 500.
The working principle of the technical scheme is as follows: the multi-station spraying device for the inner wall and the outer wall of the pipe fitting provided by the invention adopts a multi-station spraying mode to spray the inner wall and the outer wall of the pipe fitting. The pipe fitting is firstly centered on the pipe fitting centering device 200 by the piece feeding, then is jacked up and transferred to the inner wall spraying machine 300 by the conveying trolley 110, the inner wall of the pipe fitting is sprayed by the pipe fitting inner wall spraying device 310, after the spraying of the inner wall is finished, the conveying trolley 110 rises to jack the pipe fitting 600 and convey the pipe fitting to the outer wall spraying machine 400 for outer wall spraying, and after the spraying of the outer wall is finished, the pipe fitting is discharged by the conveying chain 120 for subsequent drying treatment. And the inner wall sprayer 300 and the outer wall sprayer 400 may be implemented as existing sprayers.
The beneficial effects of the technical scheme are as follows: the multi-station automatic spraying device disclosed by the invention is used for spraying the inner wall and the outer wall of the pipe fitting in different stations in a multi-station automatic conveying mode, does not need the field operation of operators in the whole spraying process, can be used for automatically spraying, and is energy-saving, environment-friendly and high in automation degree.
Referring to fig. 2, in one embodiment of the present invention, the pipe centering device 200 includes:
a chassis 210;
the pipe placing table 220 is fixedly arranged at the upper end of the base frame 210, and at least two pipe clamping assemblies 230 are arranged on the upper surface of the pipe placing table 220 in parallel;
the pipe clamping assembly 230 penetrates through the pipe placing table 220, a driving end of the pipe clamping assembly is arranged on the lower end face of the pipe placing table 220 and fixed on the base frame 210 through a frame plate 231, a clamping end of the pipe clamping assembly is arranged on the upper end face of the pipe placing table 220, and the clamping end is in transmission connection with the driving end.
The working principle of the technical scheme is as follows: when the pipe 600 enters the inner wall spraying machine 300 for inner wall spraying and enters the outer wall spraying machine 400 for outer wall spraying, the requirement on the relative position of the pipe 600 is high, if the position of the pipe cannot be kept at the centering and level in the conveying process, the spray gun cannot uniformly spray paint everywhere, and the paint spraying effect of the pipe cannot be guaranteed. The pipe centering device 200 is used for adjusting the placing position of the pipe before the inner wall and the outer wall of the pipe are sprayed. After the pipe 600 is loaded to the pipe placing table 220, the plurality of pipe clamping assemblies 230 clamp and fix a plurality of positions of the pipe 600, and in the clamping process, the pipe clamping assemblies 230 clamp and fix the pipe 600 while centering the placing position of the pipe 600, so that the pipe 600 is prevented from being shifted to the position before being transferred to the conveying trolley 110.
The beneficial effects of the above technical scheme are that: this embodiment adopts a plurality of pipe fitting clamping assembly 230 to carry out position centering adjustment to pipe fitting 600 to ensure that the pipe fitting can the even spraying when carrying out inner wall, outer wall spraying, guarantee the spraying quality.
Referring to fig. 2, 3 and 4, in one embodiment of the present invention, the tube gripping assembly 230 comprises:
a fixing frame 232 located below the pipe placing table 220 and fixedly connected to the frame plate 231;
the driving screw 233 is in threaded connection with the fixing frame 232, one end of the driving screw 233 is in transmission connection with the motor 234, and the other end of the driving screw 233 is fixedly provided with a linkage bridge 235;
the two arc-shaped clamping arms 236 are symmetrically arranged along the axis, one end of each arc-shaped clamping arm 236 is hinged to the two ends of the fixing frame 232, a guide groove 237 is further formed in the arm surface of each arc-shaped clamping arm 236, and sliding bolts 238 fixed to the two ends of the linkage bridge 235 are connected with the guide grooves 237 in a matched mode.
The working principle of the technical scheme is as follows: centering the tube 600 is achieved by simultaneously clamping the tube 600 by a plurality of in-line tube clamping assemblies 230. The gripping and unclamping action of the tubular 600 by the tubular gripper assembly 230 is accomplished by: the fixing frame 232 is fixed on the bottom frame 210 as a basic frame, the driving screw 233 is in threaded connection with the fixing frame 232, the driving screw 233 is driven by the motor 234 to slide up and down relative to the fixing frame 232 and simultaneously drive the linkage bridge 235 to slide up and down, and since the linkage bridge 235 is in fit connection with the guide groove 237 through the sliding bolt 238, the two arc-shaped clamping arms 236 move close to or away from each other simultaneously in the process of sliding the linkage bridge 235 up and down, so as to clamp or release the pipe 600. In the drawing, when the driving screw 233 moves upward together with the coupling bridge 235, since the interval between the two slide bolts 238 fixed to the coupling bridge 235 is kept constant, the relative positions of the slide bolts 238 in the guide grooves 237 are moved upward, by which the two arc-shaped gripping arms 236 approach each other to perform a gripping action on the pipe 600. As described above, the release of the tubular from the tubular gripping assembly 230 is the reverse of the gripping action.
The beneficial effects of the above technical scheme are that: the clamping and loosening actions of the pipe 600 are realized through the mechanical transmission of the driving screw 233, the position of the pipe 600 can be centered and adjusted, the pipe 600 can be firmly fixed in the middle position, the position is always kept unchanged before the pipe is transferred to the conveying trolley 110, and the phenomenon that the spraying effect is finally deteriorated due to the displacement of the pipe is avoided.
Referring to fig. 2, 3 and 4, in an embodiment of the present invention, a maintenance plate 239 is disposed at the other end of the arc-shaped clamping arm 236, and a length direction of the maintenance plate 239 is consistent with a length direction of the pipe 600.
The working principle and the beneficial effects of the technical scheme are as follows: the centering of the pipe 600 is achieved by the pipe clamp assembly 230 being in a straight line, and particularly by the two arc clamp arms 236 being gradually closed together, the position of the pipe 600 is continuously adjusted in the closing process, and the centering is finally achieved, and the pipe 600 is clamped to keep the centering state without displacement. In order to further improve the centering and clamping effect of the arc-shaped clamping arms 236, a maintaining plate 239 is further arranged on the arc-shaped clamping arms 236, and the maintaining plate 239 is always in contact with the outer peripheral wall of the pipe fitting 600 to guide the pipe fitting in the clamping process of the arc-shaped clamping arms 236, so that the direction of the pipe fitting 600 is always consistent with the direction of the maintaining plate 239. After the length direction of the maintaining plate 239 is adjusted, the length direction of the pipe 600 can be kept in a centering state under the guiding action of the maintaining plate 239.
Referring to fig. 4 and 5, in an embodiment of the present invention, a maintaining plate 239 is also disposed in the middle of the linking bridge 235, an outer arc surface 2310 is disposed at one end of the maintaining plate 239 contacting the pipe 600, two aligning flanges 2311 are disposed on the outer arc surface 2310, the length extending direction of the aligning flanges 2311 is consistent with the length direction of the maintaining plate 239, and a groove 2312 formed between the aligning flanges 2311 contacts the outer circumferential surface of the pipe 600.
The working principle and the beneficial effects of the technical scheme are as follows: in the process of limiting and guiding the length direction of the pipe 600 by the maintaining plate 239, the contact part of the maintaining plate 239 and the pipe 600 cannot be effectively limited, so that an outer arc surface 2310 contacting the pipe 600 is arranged on the maintaining plate 239, and two aligning flanges 2311 which are axially symmetrical are arranged on the outer arc surface 2310. During the process of holding the pipe 600 by the arcuate holding arms 236, the pipe 600 contacts the groove 2312 formed between the alignment flanges 2311. Until a total of three maintenance plates 239 on the two arc-shaped holding arms 236 of the link bridge 235 are in contact with the pipe 600, 3 positions of the opposite side edges of the aligning flanges 2311 of the respective outer arc surfaces 2310 and the bottom of the groove 2312 determine a unique position of the maintenance plate 239 in contact with the pipe 600, and a unique position of the pipe 600 is determined by the position limitation of the three maintenance plates 239. The centering of the pipe 600 during the transportation process can be ensured by the position limiting effect of the three dimension plates 239.
Referring to fig. 4 and 5, in an embodiment of the present invention, a leveling screw 2313 is fixedly connected to one end of the leveling plate 239 through a thread, and a tapered pressure head 2314 is installed on one end of the leveling screw 2313 facing the pipe 600.
The working principle and the beneficial effects of the technical scheme are as follows: the tapered ram 2314 functions to detect whether the position of the tubular 600 is in the center of the tubular placement table 220. The tapered indents 2314 on the three dimension plates 239 should simultaneously contact the outer peripheral wall of the tube 600 when the tube 600 is in the centered position. The function of the set screw 2313 is to adjust the length of the tapered ram 2314 to accommodate tubulars 600 of different diameters.
In an embodiment of the present invention, a piezoelectric sensor is disposed at an end of the conical ram 2314 contacting the pipe 600, a deformation sensor is disposed on a side wall of the conical ram 2314, and the piezoelectric sensor and the deformation sensor are connected to a same control circuit.
The working principle and the beneficial effects of the technical scheme are as follows: because the people observes whether the toper pressure head 2314 contacts with pipe fitting 600 and can't reach certain degree of accuracy, consequently adopt piezoelectric sensor to judge whether the toper pressure head 2314 touches pipe fitting 600, deformation sensor can also respond to the produced deformation of toper pressure head 2314 when pressing pipe fitting 600 simultaneously, judges through the size of comparing three toper pressure head 2314 deformation whether centering is accurate pipe fitting 600.
Referring to fig. 6, in an embodiment of the invention, the control circuit includes a signal transmission circuit, the signal transmission circuit includes an input circuit, a differential amplifier circuit, a bias common source gain circuit, and an output circuit,
the input circuit includes:
the first input end B1 is sequentially connected with an inductor I1 and a capacitor C1 in series;
the second input end B2 is sequentially connected in series with an inductor I2 and a capacitor C2;
two ends of the variable resistor R1 are respectively connected with one end of the capacitor C1 which is not connected with the inductor I1 and one end of the capacitor C2 which is not connected with the inductor I2, and the resistor head is connected with the capacitor C3 in series and then grounded;
the differential amplifier circuit includes:
a transistor M1, the grid of which is connected with one end of the variable resistor R1 connected with the capacitor C1, the drain of which is grounded, and the source of which is connected with one end of the variable resistor R1 connected with the capacitor C2 through the capacitor C4;
a transistor M2, a gate of which is connected to one end of the variable resistor R1 connected to the capacitor C1, a drain of which is grounded, and a source of which is connected to one end of the capacitor C5 and one end of the variable resistor R2, respectively;
a transistor M3 having a gate connected to one end of the variable resistor R1 connected to the capacitor C2, a gate connected to the source of the transistor M1 via the capacitor C4, a drain connected to ground, and a source connected to one end of the variable resistor R2;
a transistor M4, a gate of which is connected to the end of the variable resistor R1 connected to the capacitor C2, a drain of which is grounded, and a source of which is connected to the capacitor C5 and the end of the variable resistor R2 not connected to the transistor M2, respectively;
the variable resistor R2 is connected with the resistor head to the ground;
the bias common-source gain circuit comprises:
a transistor M5 having a gate connected to one end of the variable resistor R2 connection transistor M2 through a capacitor C6, a resistor R3 through a capacitor C8, a drain connected to ground, and a source connected to one end of the variable resistor R5;
a transistor M6 having a gate connected to the end of the variable resistor R2 not connected to the transistor M2 through the capacitor C7, a resistor R4 through the capacitor C9, a drain connected to ground, and a source connected to the end of the variable resistor R5 not connected to the transistor M5;
the variable resistor R5 is connected with the resistor head to the ground;
the output circuit includes:
one end of the capacitor C10 is connected with the resistor R3 and the tuning variable capacitor Z1, and the other end of the capacitor C10 is connected with the inductor I3;
one end of the capacitor C11 is connected with the resistor R4 and the tuning variable capacitor Z1, and the other end of the capacitor C11 is connected with the inductor I4;
the output end T1 is connected with the inductor I3;
and the output end T2 is connected with the inductor I4.
In the whole circuit working process, signals enter the differential amplifying circuit from the input end after the signals of the input circuit are confirmed, the signals are linearly amplified and transmitted under the action of four transistor groups with different models and sizes, the amplified signals enter the bias common source gain circuit formed by the transistors and the capacitors to carry out signal completion gain, and the signals after the bias gain are output through the output end of the output circuit, so that the whole transmission process of signal amplification and interference removal is completed.
After the signals are subjected to single-stage linear amplification of the differential amplification circuit and common-source amplification gain of the bias common-source gain circuit, the signals can be prevented from being excessively attenuated in the transmission process of a longer path, and the phenomenon of mutual interference among multiple groups of signals is avoided.
Referring to fig. 1, in an embodiment of the present invention, the spray treatment apparatus 500 includes an exhaust duct 510 and a fan 520, one end of the exhaust duct 510 is fixedly disposed above the outer wall sprayer 400, and the fan 520 is communicated with the other end of the exhaust duct 510.
The working principle and the beneficial effects of the technical scheme are as follows: the spray treatment apparatus 500 is used to treat the harmful spray generated from the outer wall sprayer 400, and the fan 520 draws the spray near the outer wall sprayer 400 through the exhaust duct 510 for centralized treatment.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (9)
1. A multi-station spraying device for the inner wall and the outer wall of a pipe fitting is characterized by comprising a spraying device;
the pipe fitting conveying device (100) comprises a conveying trolley (110) and a conveying chain (120), the conveying chain (120) moves linearly under the driving of a motor (130), the conveying trolley (110) is fixedly connected with the conveying chain (120), the conveying trolley (110) moves along a preset track under the driving of the conveying chain (120), and a pipe fitting centering device (200), an inner wall spraying machine (300) and an outer wall spraying machine (400) are sequentially arranged on the preset track of the conveying chain (120);
the pipe fitting centering device (200) is connected with the starting end of the conveying chain (120);
the inner wall spraying machine (300) is arranged at the downstream of the pipe fitting centering device (200) along the movement direction of the conveying chain (120), and the inner wall spraying machine (300) comprises a pipe fitting inner wall spraying device (310);
the outer wall spraying machine (400) is arranged at the downstream of the inner wall spraying machine (300) along the moving direction of the conveying chain (120), and a spraying treatment device (500) is arranged at the upper end of the outer wall spraying machine (400).
2. The multi-station pipe fitting inner and outer wall spraying device according to claim 1, wherein: the tubular centering device (200) comprises:
a chassis (210);
the pipe fitting placing table (220) is fixedly arranged at the upper end of the base frame (210), and at least two pipe fitting clamping assemblies (230) are arranged on the upper surface of the pipe fitting placing table (220) in parallel;
the pipe fitting clamping assembly (230) penetrates through the pipe fitting placing table (220), the driving end of the pipe fitting clamping assembly is arranged on the lower end face of the pipe fitting placing table (220) and fixed on the bottom frame (210) through a frame plate (231), the clamping end of the pipe fitting clamping assembly is arranged on the upper end face of the pipe fitting placing table (220), and the clamping end is in transmission connection with the driving end.
3. The multi-station pipe fitting inner and outer wall spraying device according to claim 2, wherein: the tubular gripping assembly (230) comprises:
the fixing frame (232) is positioned below the pipe fitting placing table (220) and fixedly connected with the frame plate (231);
the driving screw rod (233) is in threaded connection with the fixing frame (232), one end of the driving screw rod (233) is in transmission connection with the motor (234), and the other end of the driving screw rod (233) is fixedly provided with a linkage bridge (235);
arc centre gripping arm (236), two arc centre gripping arm (236) axis symmetry set up and one end articulates the both ends of mount (232), guide way (237) have still been seted up on the arm face of arc centre gripping arm (236), fix slide bolt (238) at the both ends of linkage bridge (235) with guide way (237) cooperation is connected.
4. A multi-station spraying device for inner and outer walls of pipe fittings according to claim 3, wherein: the other end of the arc-shaped clamping arm (236) is provided with a maintaining plate (239), and the length direction of the maintaining plate (239) is consistent with that of the pipe fitting (600).
5. The multi-station pipe fitting inner and outer wall spraying device according to claim 4, wherein: the middle of the linkage bridge (235) is also provided with a maintaining plate (239), one end, in contact with the pipe fitting (600), of the maintaining plate (239) is provided with an outer arc surface (2310), the outer arc surface (2310) is provided with two aligning flanges (2311), the length extending direction of the aligning flanges (2311) is consistent with the length direction of the maintaining plate (239), and a groove (2312) formed between the aligning flanges (2311) is in contact with the outer peripheral surface of the pipe fitting (600).
6. The multi-station pipe fitting inner and outer wall spraying device according to claim 5, wherein: one end of the maintaining plate (239) is fixedly connected with a righting screw (2313) in a threaded mode, and a conical pressure head (2314) is arranged on one end, facing the pipe fitting (600), of the righting screw (2313).
7. The multi-station pipe fitting inner and outer wall spraying device according to claim 5, wherein: the end part, in contact with the pipe fitting (600), of the conical pressure head (2314) is provided with a piezoelectric sensor, the side wall of the conical pressure head (2314) is provided with a deformation sensor, and the piezoelectric sensor and the deformation sensor are connected to the same control circuit.
8. The multi-station pipe fitting inner and outer wall spraying device according to claim 7, wherein: the control circuit comprises a signal transmission circuit, the signal transmission circuit comprises an input circuit, a differential amplification circuit, a bias common source gain circuit and an output circuit,
the input circuit includes:
the first input end B1 is sequentially connected with an inductor I1 and a capacitor C1 in series;
the second input end B2 is sequentially connected in series with an inductor I2 and a capacitor C2;
two ends of the variable resistor R1 are respectively connected with one end of the capacitor C1 which is not connected with the inductor I1 and one end of the capacitor C2 which is not connected with the inductor I2, and the resistor head is connected with the capacitor C3 in series and then grounded; the differential amplifier circuit includes:
a transistor M1, the grid of which is connected with one end of the variable resistor R1 connected with the capacitor C1, the drain of which is grounded, and the source of which is connected with one end of the variable resistor R1 connected with the capacitor C2 through the capacitor C4; a transistor M2, a gate of which is connected to one end of the variable resistor R1 connected to the capacitor C1, a drain of which is grounded, and a source of which is connected to one end of the capacitor C5 and one end of the variable resistor R2, respectively;
a transistor M3 having a gate connected to one end of the variable resistor R1 connected to the capacitor C2, a gate connected to the source of the transistor M1 via the capacitor C4, a drain connected to ground, and a source connected to one end of the variable resistor R2;
a transistor M4, a gate of which is connected to the end of the variable resistor R1 connected to the capacitor C2, a drain of which is grounded, and a source of which is connected to the capacitor C5 and the end of the variable resistor R2 not connected to the transistor M2, respectively;
the variable resistor R2 is connected with the resistor head to the ground;
the bias common-source gain circuit comprises:
a transistor M5 having a gate connected to one end of the variable resistor R2 connection transistor M2 through a capacitor C6, a resistor R3 through a capacitor C8, a drain connected to ground, and a source connected to one end of the variable resistor R5;
a transistor M6 having a gate connected to the end of the variable resistor R2 not connected to the transistor M2 through the capacitor C7, a resistor R4 through the capacitor C9, a drain connected to ground, and a source connected to the end of the variable resistor R5 not connected to the transistor M5;
the variable resistor R5 is connected with the resistor head to the ground;
the output circuit includes:
one end of the capacitor C10 is connected with the resistor R3 and the tuning variable capacitor Z1, and the other end of the capacitor C10 is connected with the inductor I3;
one end of the capacitor C11 is connected with the resistor R4 and the tuning variable capacitor Z1, and the other end of the capacitor C11 is connected with the inductor I4;
the output end T1 is connected with the inductor I3;
and the output end T2 is connected with the inductor I4.
9. The multi-station pipe fitting inner and outer wall spraying device according to claim 1, wherein: spray treatment device (500) include exhaust pipe (510) and fan (520), the one end of exhaust pipe (510) fixed set up in the top of fan (400) is spouted to the outer wall, fan (520) with the other end intercommunication of exhaust pipe (510).
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| CN201911078295.3A CN110665693B (en) | 2019-11-06 | 2019-11-06 | Multi-station pipe fitting inner and outer wall spraying device |
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| CN201911078295.3A CN110665693B (en) | 2019-11-06 | 2019-11-06 | Multi-station pipe fitting inner and outer wall spraying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114289218A (en) * | 2021-12-31 | 2022-04-08 | 安徽国登管业科技有限公司 | High-efficiency steel-plastic composite pipeline forming equipment |
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| Publication number | Publication date |
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| CN110665693B (en) | 2023-07-28 |
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Address after: 224000 room 602-2, building 4, No. 5, South hope Avenue, Yancheng Economic and Technological Development Zone, Jiangsu Province Patentee after: Jiangsu yingkai coating equipment Co.,Ltd. Address before: 224000 room 602-2, building 4, No. 5, South hope Avenue, Yancheng Economic and Technological Development Zone, Jiangsu Province Patentee before: Yancheng yingkai coating equipment Co.,Ltd. |