CN106423691B - Spray head and spraying machine with same - Google Patents

Spray head and spraying machine with same Download PDF

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Publication number
CN106423691B
CN106423691B CN201610955299.5A CN201610955299A CN106423691B CN 106423691 B CN106423691 B CN 106423691B CN 201610955299 A CN201610955299 A CN 201610955299A CN 106423691 B CN106423691 B CN 106423691B
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CN
China
Prior art keywords
ring
spraying
spray head
glue
arc
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Application number
CN201610955299.5A
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Chinese (zh)
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CN106423691A (en
Inventor
李瑞祥
黄绿林
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Changyuan High Energy Electric Co ltd
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Changyuan High Energy Electric Co ltd
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Priority to CN201610955299.5A priority Critical patent/CN106423691B/en
Publication of CN106423691A publication Critical patent/CN106423691A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/26Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00Machines 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
    • B05B13/02Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0405Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with reciprocating or oscillating spray heads
    • B05B13/041Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with reciprocating or oscillating spray heads with spray heads reciprocating along a straight line
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00Spray booths
    • B05B16/20Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02Cleaning by the force of jets, e.g. blowing-out cavities

Abstract

The invention relates to the technical field of spraying equipment, in particular to a spray head and a spraying machine with the spray head, wherein the spray head is an annular spray head which is sequentially provided with a cleaning annular spray head for cleaning the surface of a core rod and a spraying annular spray head for spraying sizing material on the surface of the core rod, a plurality of air nozzles are uniformly distributed on the inner annular wall of the cleaning annular spray head, a plurality of spraying ports are uniformly distributed on the inner annular wall of the spraying annular spray head, an air inlet is formed in the outer side wall of the cleaning annular spray head, and an air injection port and an adhesive injection port are formed in the outer side wall of the spraying annular spray head; the air inlet is communicated with the air outlet through a shunting air passage; the glue injection port is communicated with the spraying port through the glue injection sub-channel, the gas injection port is communicated with the spraying port through the gas injection sub-channel, and the annular nozzle enables the surface spraying effect of the core rod to be more uniform.

Description

Spray head and spraying machine with same
Technical Field
The invention relates to the technical field of spraying equipment, in particular to a spray head and a spraying machine with the spray head.
Background
The insulator is used as an essential product for electric power transmission and transformation industry and electric railway electric power transmission, wherein the organic composite insulator accounts for about 65% of the whole insulator application market share, so that the organic composite insulator with excellent performance and stable quality is provided, and the organic composite insulator plays a very important role in economic construction and guaranteeing the safety of electric power transmission. The main structure of the organic composite insulator comprises a core rod, a silica gel umbrella skirt sleeved outside the core rod and hardware fittings arranged at two ends of the core rod.
In the production process of the organic composite insulator, one key procedure is how to ensure the bonding quality between the silica gel umbrella skirt and the core rod. At present, the adhesion between the silica gel umbrella skirt and the core rod is realized by coating a layer of coupling agent on the surface of the core rod and connecting a plurality of materials with different properties into a whole through the bridging effect of the coupling agent, so that the practical function of the organic composite insulator is met.
Because the core rod generally adopts epoxy resin fibre as the material, before bonding with the silica gel parachute kit, the surface of core rod all can go on polishing and make its surface more smooth, and then improves composite insulator's performance, but, the core rod surface of polishing can be responsible for a lot of dust and need clean up after, just can carry out the coating of coupling agent, and in the prior art for production, the method of adoption is through the manual work utilize cloth strip or brush with the dust of core rod through the manual cleaning clean up of wiping, again with the manual coating of coupling agent on the surface of epoxy resin fibre stick.
The following disadvantages exist with manual coating and wiping: firstly, manually wiping and cleaning dust of the core rod, and then transferring the core rod to a coating area for manual coating work, so that the labor burden in the transferring process is large, the time is long, and the working efficiency is low; secondly, in the process of manually coating the coupling agent, due to the instability of human factors, the thickness of a glue layer coated with the coupling agent is inconsistent, and the performance of the composite insulator is further influenced; thirdly, the core rod is coated by tools such as cloth or cloth strips, more cloth fibers are remained in the coating process and are adhered to the surface of the core rod, so that secondary pollution is caused to the core rod, and electric conductor particles are buried between the silica gel umbrella skirt and the core rod, so that when the product is applied, an internal insulation forms a passage, a power transmission line is short-circuited, or the temperature rise is generated in the product, the core rod is ablated, and the risk of line drop is generated. In practical application, the above power transmission and transformation safety accidents occur every year.
Disclosure of Invention
The invention aims to provide a spraying machine with uniform spraying effect and high working efficiency aiming at the defects in the prior art; also provides a spray head with uniform spraying effect.
The purpose of the invention is realized by the following technical scheme: a spray head is an annular spray head, the annular spray head is sequentially provided with a cleaning annular spray head for cleaning the surface of a core rod and a spraying annular spray head for spraying glue on the surface of the core rod, a plurality of air nozzles are uniformly distributed on the inner annular wall of the cleaning annular spray head, a plurality of spraying openings are uniformly distributed on the inner annular wall of the spraying annular spray head, an air inlet is formed in the outer side wall of the cleaning annular spray head, and an air injection opening and an glue injection opening are formed in the outer side wall of the spraying annular spray head; the air inlet is communicated with the air outlet through a shunting air passage; the glue injection port is communicated with the spraying port through a glue injection sub-runner, and the gas injection port is communicated with the spraying port through a gas injection sub-runner.
The cleaning annular sprayer comprises cleaning semicircular sprayers which are arranged in pairs, and the spraying annular sprayer comprises spraying semicircular sprayers which are arranged in pairs.
Wherein, wash semicircle ring shower nozzle including the air inlet ring, guide ring, washing ring and the closed ring that closely laminate in proper order, air inlet ring, guide ring, washing ring and closed ring form the reposition of redundant personnel air flue that supplies the fluid to pass through jointly.
The air inlet is arranged on the outer side wall of the air inlet ring, an arc-shaped groove for fluid to flow is formed in the annular inner side plane of the air inlet ring, an air outlet is formed in the bottom of the arc-shaped groove, and the air outlet is communicated with the air inlet;
the guide ring is provided with an arc-shaped through hole corresponding to the arc-shaped groove and a baffle positioned in front of the air outlet hole, and a plurality of inverted T-shaped through holes are uniformly distributed below the arc-shaped through hole along the arc and are communicated with the arc-shaped through hole;
the cleaning ring is provided with a plurality of groups of air outlet openings which are respectively communicated with the T-shaped through holes, and one or two or three air outlet openings are arranged in each group.
The spraying semicircular ring nozzle comprises an air injection ring, a shunt ring, a spraying ring, a glue passing ring, a guide ring and a glue injection ring which are tightly attached in sequence; the gas injection ring, the shunt ring and the spraying ring form a gas injection shunt passage together, and the spraying ring, the glue passing ring, the guide ring and the glue injection ring form a glue injection shunt passage together.
The gas injection port is arranged on the outer side wall of the gas injection ring, an arc-shaped gas channel groove for fluid to flow is formed in the annular inner side plane of the gas injection ring, a gas guide hole is formed in the bottom of the arc-shaped gas channel groove, and the gas guide hole is communicated with the gas injection port;
the flow distribution ring is provided with an arc-shaped through hole corresponding to the arc-shaped gas injection groove and a stop block positioned in front of the gas guide hole, and a plurality of inverted T-shaped through holes are uniformly distributed below the arc-shaped through hole along an arc and are communicated with the arc-shaped through hole;
the spraying ring is provided with a plurality of groups of spraying openings, each group of spraying openings comprises a glue spraying opening positioned in the middle and air injection openings positioned on two sides of the glue spraying opening, and the air injection openings are communicated with the T-shaped through holes;
the outer side wall of the glue injection ring is provided with a glue injection port, the glue injection port is arranged on the outer side wall of the glue injection ring, the annular inner side plane of the glue injection ring is provided with an arc glue conveying groove for fluid to flow, the bottom of the arc glue conveying groove is provided with a glue outlet hole, and the glue outlet hole is communicated with the glue injection port;
the guide ring is provided with an arc-shaped through hole corresponding to the arc-shaped glue conveying groove and a baffle positioned in front of the glue outlet hole;
the glue passing ring is provided with a plurality of shunting holes along the arc uniform distribution, each shunting hole is communicated with the arc through hole of the guide ring, and each shunting hole is correspondingly communicated with the glue spraying port.
The diameter of the inner ring of the cleaning annular nozzle is smaller than that of the inner ring of the spraying annular nozzle.
A spraying machine is characterized by comprising a base frame, a spray head, a moving device and a fixing device, wherein the moving device drives the spray head to move along the axial direction of a core rod, the fixing device prevents the core rod from moving, the spray head is the spray head, the moving device and the fixing device are both arranged on the base frame, and the spray head is fixedly connected with the moving device.
The lifting device is used for driving the semicircular nozzle to move up and down and comprises a lifting cylinder, the lifting cylinder is installed on the base frame, and a piston mandril of the lifting cylinder is fixedly connected with the semicircular nozzle located above the lifting cylinder.
The moving device comprises a chain wheel, a chain track, a motor and a sliding fixing plate, the motor is in driving fit with the chain wheel, the chain track is sleeved on the chain wheel, the sliding fixing plate can slide on the chain track, and the sliding fixing plate is fixedly connected with the spray head.
The invention has the beneficial effects that: a spray head is an annular spray head, the annular spray head is sequentially provided with a cleaning annular spray head for cleaning the surface of a core rod and a spraying annular spray head for spraying glue on the surface of the core rod, a plurality of air nozzles are uniformly distributed on the inner annular wall of the cleaning annular spray head, a plurality of spraying openings are uniformly distributed on the inner annular wall of the spraying annular spray head, an air inlet is formed in the outer side wall of the cleaning annular spray head, and an air injection opening and an glue injection opening are formed in the outer side wall of the spraying annular spray head; the air inlet is communicated with the air outlet through a shunting air passage; the injecting glue mouth passes through injecting glue subchannel intercommunication with the spraying mouth, the gas injection mouth passes through gas injection subchannel intercommunication with the spraying mouth, the effect that makes the surface spraying of bar-shaped thing is more even, and, annular shower nozzle divide into and washs annular shower nozzle and spraying annular shower nozzle two parts, can clear up behind the core rod surface dust fast, need not to carry just can carry out spraying work to the core rod surface to the core rod, it is consuming time to have saved work, and the production efficiency is improved, and it is still clean very right still than general cleaning method, the spraying effect of product has been guaranteed, the quality of product has been strengthened, so the shower nozzle of this application has that the coating effect is even, characteristics that work efficiency is high. Therefore, the coating machine with the spray head in the application further comprises a moving device for driving the spray head to move axially, the whole cleaning and spraying process is more suitable for production in a full-automatic control mode, the working efficiency is improved, and the production quality of products is also improved.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a coating machine according to the present embodiment.
Fig. 2 is a schematic structural diagram of a showerhead according to the present embodiment.
Fig. 3 is an exploded view of a cleaning semi-annular showerhead of a showerhead according to an embodiment.
Fig. 4 is an exploded view of a spray semi-annular nozzle of a nozzle according to this embodiment.
FIG. 5 is a schematic view of the T-shaped through hole and the air outlet opening of the cleaning semicircular ring nozzle of the present embodiment.
Fig. 6 is a schematic diagram of the matching of the T-shaped perforation, the diversion hole, the air jet outlet and the glue spraying opening in the semi-circular spray head of the embodiment.
Fig. 7 is a schematic structural diagram of a glue injection ring of a nozzle in this embodiment.
Fig. 8 is a schematic structural diagram of a guide ring of a showerhead according to an embodiment.
Fig. 9 is a schematic structural diagram of a glue applying ring of a nozzle according to this embodiment.
Fig. 10 is a schematic structural diagram of a spray ring of a spray head according to the embodiment.
Fig. 11 is a schematic structural diagram of an air guide ring of a showerhead according to an embodiment.
Reference numerals: 1-a base frame; 2-cleaning the semicircular spray head; 21-an air inlet ring; 211-gas inlet; 212-air outlet holes; 213-arc-shaped groove; 22-a guide ring; 221-a baffle; 222-an arc-shaped through hole; 223-T type through holes; 23-cleaning the ring; 231-an air outlet opening; 24-a closed ring; 3-spraying a semicircular spray head; 31-glue injection ring; 311-a glue injection port; 312-glue hole; 313-arc glue conveying groove; 32-a guide ring; 321-a baffle plate; 322-arc through hole; 33-glue through ring; 333-shunt hole; 34-a spray ring; 341-glue spraying port; 342-a gas injection opening; 35-a shunt ring; 351-a stop block; 352-arc perforation; 353-T type perforation; 36-a gas ring; 361-barrier; 362-arc shaped notch; 37-gas injection ring; 371 — gas injection port; 4-core rod; 51-a fixed plate; 52-a slide plate; 61-sliding fixed plate; 62-a sprocket; 63-caterpillar; 7-a lifting cylinder; 8-connecting ring.
Detailed Description
The invention is further described with reference to the following examples.
Referring to fig. 1 to 11, fig. 1 is a schematic structural diagram of a spraying machine of the present embodiment, which includes a base frame 1, a nozzle, a moving device for driving the nozzle to move along an axial direction of a mandrel 4, and a fixing device for fixing a position of the mandrel 4.
Specifically, the spray head is an annular spray head, the annular spray head is sequentially provided with a cleaning ring 23-shaped spray head for cleaning the surface of the core rod 4 and a spraying ring 34-shaped spray head for spraying glue on the surface of the core rod 4, a plurality of air nozzles are uniformly distributed on the inner side ring wall of the cleaning ring 23-shaped spray head, a plurality of spraying ports are uniformly distributed on the inner side ring wall of the spraying ring 34-shaped spray head, the outer side wall of the cleaning ring 23-shaped spray head is provided with an air inlet 211, and the outer side wall of the spraying ring 34-shaped spray head is provided with an air injection port 371 and a glue injection port 311; the air inlet 211 is communicated with the air outlet through a shunting air passage; the glue injection port 311 is communicated with the spraying port through a glue injection sub-channel, and the gas injection port 371 is communicated with the spraying port through a gas injection sub-channel.
Referring to fig. 2 to 3, in the present embodiment, the cleaning ring 23-shaped nozzle includes a cleaning semicircular nozzle 22 and a cylinder (not shown) which are arranged in pair, specifically, the cleaning semicircular nozzle 2 includes an air inlet ring 21, a guide ring 22, a cleaning ring 23 and a sealing ring 24 which are closely attached in sequence, the air inlet ring 21, the guide ring 22, the cleaning ring 23 and the sealing ring 24 together form a flow dividing air passage for passing a fluid, the flow dividing air passage specifically includes an arc main flow passage, a T-shaped flow guiding through hole and a nozzle, in addition, the guide ring 22, the cleaning ring 23 and the sealing ring 24 together form an air nozzle, wherein, referring to fig. 3, the air inlet 211 is arranged on the outer side wall of the air inlet ring 21 and connected to the cylinder through an air pipe, an arc groove 213 for flowing the fluid is arranged on the annular inner side plane of the air inlet ring 21, an air outlet 212 is arranged on the bottom of the arc groove 213 and the air outlet 212 is communicated with the air inlet 211, the positions of the air outlet holes 212 can be the middle part or two end parts of the arc-shaped groove 213, and the air outlet holes 212 of the embodiment are arranged at the middle position; the inner plane of the air inlet ring 21 is tightly attached to the guide ring 22, the guide ring 22 is provided with an arc through hole 222 corresponding to the arc groove 213 and a baffle 221 positioned in front of the air outlet hole 212, wherein, the flow channel formed by the arc-shaped groove 213, the arc-shaped through hole 222 and the baffle 221 is an arc-shaped main flow channel, the high-pressure gas flow/gas is mainly divided, the baffle 221 enables the high-pressure gas to be sprayed out from the gas outlet hole 212 and collide against the baffle 221, the baffle 221 plays a role of blocking and buffering, the high-pressure gas is respectively diffused along the tail ends of the two sides of the arc-shaped groove 213, the gas pressures of the middle part and the tail ends of the two sides of the arc-shaped groove 213 are approximately equal, larger gas pressure difference is not generated, the uniformity and the stability of cleaning are facilitated, in addition, the guide ring 22 is also provided with a plurality of inverted T-shaped through holes 223 which are uniformly distributed below the arc-shaped through holes 222 along the arc and communicated with the arc-shaped through holes 222; the cleaning ring 23 is tightly attached to the guide ring 22, the cleaning ring 23 is provided with a plurality of sets of air outlet openings 231 which are respectively communicated with the T-shaped through holes 223, each set of air outlet openings 231 is one, two or three, for convenience of processing, in this embodiment, please see fig. 5, the air outlet openings 231 are designed to be in the same shape as the spraying openings mentioned below, the specific air outlet openings 231 are three, the air outlet opening 231 located in the middle is longer than the air outlet openings 231 located at the two sides, and then the air outlet openings 231 and the T-shaped through holes 223 are combined to form the T-shaped flow guide through holes and the nozzles, which have the function of further shunting the fluid, so that the fluid can be uniformly distributed on the inner annular wall of the cleaning ring 23-shaped spray head and can be stably sprayed with equal pressure, and the cleaning effect can be enhanced; the wash ring is in close contact with the seal ring 24, which primarily seals the air outlet opening 231 to form an air outlet.
The working process of cleaning the semi-circular ring nozzle 2 is that the air inlet 211 of the air inlet ring 21 is communicated with the air cylinder, the air cylinder is started to introduce high-pressure air into the air inlet 211, the high-pressure air flows out from the air outlet 212 of the air inlet ring 21 along the diversion air passage, then the high-pressure air is blocked by the baffle 221 of the guide ring 22, so that the high-pressure air is uniformly distributed in the arc-shaped groove 213 of the air inlet ring 21 along the diversion air passage, the high-pressure air flows through the arc-shaped through hole 222 and the inverted T-shaped through hole 223 of the guide ring 22 at high speed, the guide ring 22 is arranged to ensure that the high-pressure air can flow through the T-shaped through holes 223 in the guide ring 22 in a very even and approximately equal air pressure manner, because the T-shaped through holes 223 are communicated with the air outlet opening 231, the high-pressure air is sprayed out from a plurality of air outlets for cleaning the inner side ring wall of the semi-circular ring nozzle 2 at medium pressure, and because the aperture of the air outlets is much thinner than that the aperture of the air inlet 211, therefore, the air pressure of the air outlet is higher than that of the air inlet 211, the air cylinder only needs to improve relatively low air pressure, the air outlet can spray high air pressure, energy consumption is effectively reduced, in addition, the close fitting of each ring piece structure enables high-pressure air to be uniformly sprayed out from a plurality of air outlets, then the cleaning effect of dust or sundries on the surface of the core rod 4 is very remarkable, the characteristics of the ring and the air pressure uniform distribution of the internal structure enable the cleaning effect to be very uniform, further, the product quality is improved, and the working efficiency is improved.
Referring to fig. 2 and 4, the spray semi-circular nozzle 3 includes a gas injection ring 37, a shunt ring 35, a spray ring 34, a glue-passing ring 33, a guide ring 32, and a glue injection ring 31, which are closely attached in sequence; the gas injection ring 37, the shunt ring 35 and the spraying ring 34 form a gas injection shunt together, and the spraying ring 34, the glue passing ring 33, the guide ring 32 and the glue injection ring 31 form a glue injection shunt together.
Referring to fig. 4 and 6, the annular nozzle further includes a spraying annular nozzle for spraying primer on the surface of the core rod 4, the spraying annular 34 includes spraying semi-annular nozzles 3 arranged in pairs, and specifically, the spraying semi-annular nozzle 3 includes a gas injection ring 37, a shunt ring 35, a spraying ring 34, a glue-through ring 33, a guide ring 32 and a glue-injection ring 31 which are tightly attached in sequence; the gas injection ring 37, the shunt ring 35 and the spraying ring 34 form a gas injection shunt together, the spraying ring 34, the glue passing ring 33, the guide ring 32 and the glue injection ring 31 form a glue injection shunt together, the shunt ring 35, the spraying ring 34 and the glue passing ring 33 enclose a spraying opening together, and similarly, the gas injection shunt and the glue injection shunt respectively comprise an arc-shaped main runner, a T-shaped flow guide through hole and a nozzle.
Referring to fig. 4 to 11, specifically, the gas injection port 371 of the spray ring 34-shaped nozzle is disposed on the outer sidewall of the gas injection ring 37 and connected to a cylinder (not shown) through a gas pipe, an arc-shaped gas channel groove for fluid flowing is formed on the annular inner side plane of the gas injection ring 37, a gas guide hole is formed on the bottom of the arc-shaped gas channel groove and is communicated with the gas injection port 371, the position of the gas injection hole may be the middle portion or two end portions of the arc-shaped groove 213, and the gas injection hole of this embodiment is disposed at the middle position; in order to better enable the injected gas to be divided, in this embodiment, a gas guide ring 36 is further added between the gas injection ring 37 and the dividing ring 35, the gas guide ring 36 is tightly attached to the gas injection ring 37, and the gas guide ring 36 is provided with an arc notch 362 corresponding to the position of the arc gas channel and a stop block 361 located in front of the gas guide hole; the blocking block 361 is used for enabling high-pressure gas to be sprayed out from the gas outlet hole 212 and collide against the blocking block 361, the blocking block 361 plays a role of blocking and buffering, the high-pressure gas is enabled to be diffused along the tail ends of the two sides of the arc-shaped gas channel groove respectively, the gas pressures of the middle part and the tail ends of the two sides of the arc-shaped gas channel groove are approximately equal, larger gas pressure difference is not generated, and spraying uniformity and stability are facilitated; the gas guide ring 36 is tightly attached to the shunt ring 35, the shunt ring 35 is provided with an arc-shaped through hole 352 corresponding to the position of the arc-shaped gas injection groove and a stop 351 positioned in front of the gas guide hole, and a plurality of inverted T-shaped through holes 353 are uniformly distributed below the arc-shaped through hole 352 along the arc and are communicated with the arc-shaped through hole 352, wherein a flow channel formed by the arc-shaped gas channel groove, the arc-shaped notch 362, the arc-shaped through hole 222 and the baffle 221 is an arc-shaped main flow channel which mainly shunts high-pressure gas flow/gas; the shunt ring 35 is tightly attached to the spray ring 34, the spray ring 34 is provided with a plurality of groups of spray openings, each group of spray openings includes a glue spraying opening 341 located in the middle and air injection openings 342 located at two sides of the glue spraying opening 341, wherein, referring to fig. 6, the opening length of the glue spraying opening 341 is longer than that of the air injection opening 342, the air injection opening 342 is arranged between adjacent T-shaped through holes 353 in the shunt ring 35, so that the air injection opening 342 is communicated with the T-shaped through holes 353, the glue spraying opening 341 located in the middle is not communicated with the T-shaped through holes 353, and the air injection opening 342 is matched with the T-shaped through holes 353 by T-shaped flow guide through holes and nozzles. The outer side wall of the glue injection ring 31 is provided with a glue injection port 311, the glue injection port 311 is arranged on the outer side wall of the glue injection ring 31 and is connected with the glue storage tank through a glue pipe, the annular inner side plane of the glue injection ring 31 is provided with an arc glue conveying groove 313 for fluid to flow, the groove bottom of the arc glue conveying groove 313 is provided with a glue outlet 312, and the glue outlet 312 is communicated with the glue injection port 311; the guide ring 32 is provided with an arc-shaped through hole 322 corresponding to the arc-shaped glue conveying groove 313 and a baffle 321 positioned in front of the glue outlet hole 312, the baffle 321 enables high-pressure fluid to be sprayed out of the glue outlet hole 312 and collide with the baffle 321, the baffle 321 plays a role of blocking and buffering, the high-pressure fluid is enabled to be spread along the tail ends of the two sides of the arc-shaped glue conveying groove 313 respectively, the hydraulic pressure of the middle part and the tail ends of the two sides of the arc-shaped glue conveying groove 313 is enabled to be approximately equal, a large hydraulic pressure difference is not generated, and the spraying uniformity and stability are facilitated; wherein, the flow channel formed by the arc glue conveying groove 313, the arc through hole 322 and the baffle 321 is an arc main flow channel which mainly divides the high-pressure liquid; the glue passing ring 33 is uniformly provided with a plurality of shunting holes 333 along an arc, each shunting hole 333 is communicated with the arc through hole 322 of the guide ring 32, each shunting hole 333 is correspondingly communicated with the glue spraying opening 341, so that the glue spraying opening 341 in the glue spraying opening radially sprays glue materials to the inner ring, and the air spraying openings 342 positioned at two sides of the glue spraying opening 341 radially spray high-pressure air to the inner ring.
During the operation of the spray coating semi-circular ring nozzle 3, the gas injection branch passage part is a gas injection port 371 of the gas injection ring 37 communicated with the cylinder, the cylinder is started to inject high-pressure gas into the gas injection port 371, the high-pressure gas flows out from a gas guide port of the gas injection ring 37 along the gas injection branch passage part, then the high-pressure gas can be quickly blocked by the gas guide ring 36, so that the high-pressure gas is uniformly distributed in an arc-shaped through groove of the gas injection ring 37 along the gas injection branch passage part, further the high-pressure gas can flow through an arc-shaped notch 362 of the gas guide ring 36 at a high speed, further the high-pressure gas can flow through an arc-shaped perforation 352 and an inverted T-shaped perforation 353 of the branch passage 35, the branch passage 35 is arranged to ensure that the high-pressure gas can flow out from a plurality of T-shaped perforations 353 in the branch passage 35 with substantially equal gas pressure on a very average basis and then flow to a gas injection opening 342 in a spray coating opening of the spray coating ring 34, and then the high-pressure gas is sprayed out along the radial direction of the core rod 4, because two adjacent T-shaped holes are only communicated with the air injection openings 342 at two sides in one group of spraying openings, high-pressure air can only be ejected out of the air injection openings 342 of each group of spraying openings on the inner side ring wall of the spraying semicircular ring nozzle 3 at equal pressure, in addition, the glue injection branch channel part is that the glue injection opening 311 of the glue injection ring 31 is communicated with the glue storage pump, the glue storage pump is started to pressurize and convey glue materials to the glue injection opening 311, the glue materials can come out of the glue outlet 312 of the glue injection ring 31, then the glue materials can be blocked by the blocking piece 321 of the guide ring 32, the glue materials can not be ejected out of the glue outlet at high pressure and are uniformly distributed in the arc glue conveying groove 313 of the glue injection ring 31, the glue materials can flow through the arc through hole 322 of the guide ring 32 at high speed, the glue materials can flow through the branch holes 333 of the glue through ring 33, the glue through ring 33 is arranged to ensure that the glue materials can flow out from the branch holes 333 in the glue through ring 33 at the same pressure intensity and in a very even way, because two adjacent T-shaped holes are not communicated with the glue spraying ports 341 in each group of spraying ports, and each branch flow hole 333 is communicated with the spraying ports in each group of spraying ports, the glue is sprayed out from the glue outlet of the inner side wall of the semi-circular spraying nozzle 3, furthermore, because the fluid sprayed out from the air spraying ports 342 on the two sides in each group of spraying ports is high-pressure air, the glue is sprayed out from the spraying ports in the middle of the spraying ports, because the high-pressure air is sprayed out from the air spraying ports 342, the scattering phenomenon can be generated around the glue outlet, and simultaneously, the high-pressure air can burst the glue, the glue sprayed out from the glue spraying ports 341 is atomized, namely, the water column is originally sprayed out in a water column shape, because the high-pressure air makes the water column change into small water beads, the atomization is realized, and because the annular structure is identical with the core rod 4, and because the internal structure of the semi-circular spraying nozzle 3 is matched, the pressure of each glue outlet in the inner side wall of the spraying ports is approximately equal, the spraying effect on the surface of the core rod 4 is more uniform.
Referring to fig. 2, in the embodiment, the diameter of the inner ring of the cleaning annular nozzle 2 is smaller than that of the inner ring of the spraying annular nozzle 3, the cleaning annular nozzle 2 is fixedly connected with the spraying annular nozzle 3 through the connecting ring 8, wherein the gas outlet of the cleaning annular nozzle 2 is closer to the mandrel than the spraying opening of the spraying annular nozzle 3, so that in the using process, the cleaning annular nozzle 2 does not have excessive influence on the spraying effect of the spraying annular nozzle 3 during cleaning, and further the production quality of the product is improved.
In the embodiment, the moving device for driving the nozzle to move along the axial direction of the mandrel 4 in the coating machine structurally comprises a chain wheel 62, a chain rail 63, a motor and a sliding fixing plate 61, wherein the motor is in driving fit with the chain wheel 62, the chain rail 63 is sleeved on the chain wheel 62, the sliding fixing plate 61 can slide on the chain rail 63, and the sliding fixing plate 61 is fixedly connected with the annular nozzle.
In this embodiment, flush coater still is equipped with the elevating gear that drives the semicircle ring shower nozzle that is located the top and reciprocate, and is concrete, and bed frame 1 is equipped with lift cylinder 7, and this lift cylinder 7's piston rod and the semicircle ring shower nozzle rigid coupling that is located the top are favorable to the spraying in-process like this, the placing and taking out of plug 4.
In the present embodiment, the fixing device for fixing the mandrel 4 in the coating machine, specifically, the fixing plate 51 and the sliding plate 52, and the fixing plate 51 and the sliding plate 52 are slidably engaged with each other, so that the mandrel 4 is adjustable in the height direction.
The working process of the coating machine of the embodiment is firstly, the upper semicircular nozzle is lifted by the lifting device, and the core rod 4 is prevented from being arranged on the fixing device; secondly, adjusting the position of the fixing device to ensure that the coaxiality between the core rod 4 and the annular nozzle meets the requirement; and thirdly, closing the annular spray head, starting the moving device, the air pump and the glue storage pump, and enabling the moving device to drive the annular spray head to complete secondary back-and-forth movement through automatic control, namely completing the spraying work of one period.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims (6)

1. A spray head is characterized in that the spray head is an annular spray head, the annular spray head is sequentially provided with a cleaning annular spray head for cleaning the surface of a core rod and a spraying annular spray head for spraying glue on the surface of the core rod, a plurality of air nozzles are uniformly distributed on the inner side annular wall of the cleaning annular spray head, a plurality of spraying ports are uniformly distributed on the inner side annular wall of the spraying annular spray head, an air inlet is formed in the outer side wall of the cleaning annular spray head, and an air injection port and an adhesive injection port are formed in the outer side wall of the spraying annular spray head; the air inlet is communicated with the air outlet through a shunting air passage; the glue injection port is communicated with the spraying port through a glue injection sub-runner, and the gas injection port is communicated with the spraying port through a gas injection sub-runner; the cleaning annular spray heads comprise cleaning semi-annular spray heads arranged in pairs, and the spraying annular spray heads comprise spraying semi-annular spray heads arranged in pairs; the cleaning semicircular spray head comprises an air inlet ring, a guide ring, a cleaning ring and a closed ring which are tightly attached in sequence, wherein the air inlet ring, the guide ring, the cleaning ring and the closed ring form a flow dividing air passage for fluid to pass through together; the air inlet is arranged on the outer side wall of the air inlet ring, an arc-shaped groove for fluid to flow is formed in the annular inner side plane of the air inlet ring, an air outlet hole is formed in the bottom of the arc-shaped groove, and the air outlet hole is communicated with the air inlet;
the guide ring is provided with an arc-shaped through hole corresponding to the arc-shaped groove and a baffle positioned in front of the air outlet hole, and a plurality of inverted T-shaped through holes are uniformly distributed below the arc-shaped through hole along the arc and are communicated with the arc-shaped through hole;
the cleaning ring is provided with a plurality of groups of air outlet openings which are respectively communicated with the T-shaped through holes, and one or two or three air outlet openings are arranged in each group.
2. The spray head of claim 1, wherein the spray semicircular ring spray head comprises an air injection ring, a shunt ring, a spray ring, a glue through ring, a guide ring and a glue injection ring which are closely attached in sequence; the gas injection ring, the shunt ring and the spraying ring form a gas injection shunt passage together, and the spraying ring, the glue passing ring, the guide ring and the glue injection ring form a glue injection shunt passage together; the gas injection port is arranged on the outer side wall of the gas injection ring, the annular inner side plane of the gas injection ring is provided with an arc-shaped gas channel groove for fluid to flow, the bottom of the arc-shaped gas channel groove is provided with a gas guide hole, and the gas guide hole is communicated with the gas injection port;
the flow distribution ring is provided with an arc-shaped through hole corresponding to the arc-shaped gas injection groove and a stop block positioned in front of the gas guide hole, and a plurality of inverted T-shaped through holes are uniformly distributed below the arc-shaped through hole along an arc and are communicated with the arc-shaped through hole;
the spraying ring is provided with a plurality of groups of spraying openings, each group of spraying openings comprises a glue spraying opening positioned in the middle and air injection openings positioned on two sides of the glue spraying opening, and the air injection openings are communicated with the T-shaped through holes;
the outer side wall of the glue injection ring is provided with a glue injection port, the glue injection port is arranged on the outer side wall of the glue injection ring, the annular inner side plane of the glue injection ring is provided with an arc glue conveying groove for fluid to flow, the bottom of the arc glue conveying groove is provided with a glue outlet hole, and the glue outlet hole is communicated with the glue injection port;
the guide ring is provided with an arc-shaped through hole corresponding to the arc-shaped glue conveying groove and a baffle positioned in front of the glue outlet hole;
the glue passing ring is provided with a plurality of shunting holes along the arc uniform distribution, each shunting hole is communicated with the arc through hole of the guide ring, and each shunting hole is correspondingly communicated with the glue spraying port.
3. The spray head of claim 1 wherein the inner diameter of said cleaning annular spray head is smaller than the inner diameter of said spray annular spray head.
4. A spray painting machine is characterized by comprising a base frame, a spray head, a moving device and a fixing device, wherein the moving device drives the spray head to move along the axial direction of a core rod, the fixing device prevents the core rod from moving, the spray head is the spray head in any one of claims 1 to 3, the moving device and the fixing device are both arranged on the base frame, and the spray head is fixedly connected with the moving device.
5. The spraying machine as claimed in claim 4, further comprising a lifting device for moving the semicircular nozzle up and down, wherein the lifting device comprises a lifting cylinder, the lifting cylinder is mounted on the base frame, and a piston rod of the lifting cylinder is fixedly connected with the semicircular nozzle located above.
6. The spraying machine of claim 4, wherein the moving device comprises a chain wheel, a chain track, a motor, and a sliding fixing plate, the motor is in driving fit with the chain wheel, the chain track is sleeved on the chain wheel, the sliding fixing plate can slide on the chain track, and the sliding fixing plate is fixedly connected with the spray head.
CN201610955299.5A 2016-10-27 2016-10-27 Spray head and spraying machine with same Active CN106423691B (en)

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