CN212820825U - Novel hot melt adhesive spraying scraper gun - Google Patents
Novel hot melt adhesive spraying scraper gun Download PDFInfo
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- CN212820825U CN212820825U CN202021446206.4U CN202021446206U CN212820825U CN 212820825 U CN212820825 U CN 212820825U CN 202021446206 U CN202021446206 U CN 202021446206U CN 212820825 U CN212820825 U CN 212820825U
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Abstract
The utility model discloses a novel rifle is scraped in hot melt adhesive spraying. The glue spraying device comprises a base, a metering pump body and a spraying gun body, wherein the metering pump body and the spraying gun body are installed on the base; the scraper of the spraying gun body comprises a first scraper and a second scraper which are mutually covered, and the tail end of the first scraper or the tail end of the second scraper extends outwards to form a scraping end. The utility model adds a reflux cavity in the base and sets a reflux valve in the reflux cavity, which allows reflux conduction when the internal pressure is too high, releases a part of colloid pushed into the spray gun body, and ensures internal pressure balance; simultaneously, the frictioning end that the scraper that the spraying rifle body was located was provided with carries out even knife coating to the colloid surface for the colloid of spraying is more even, level and smooth, solves the frictioning line problem.
Description
Technical Field
The utility model belongs to the technical field of the rifle technique is scraped to the hot melt adhesive and specifically relates to a novel rifle is scraped in hot melt adhesive spraying.
Background
As is known, the hot melt adhesive is a plastic adhesive, the physical state of which changes with the temperature within a certain temperature range, but the chemical properties of which are unchanged, is nontoxic and tasteless, and belongs to an environment-friendly chemical product. The product is solid, so the product is convenient to package, transport and store, and has no solvent, pollution and toxicity; the hot melt adhesive has the advantages of simple production process, high added value, high bonding strength, high speed and the like, is favored by various industries, can be controlled to discharge the hot melt adhesive by a spray gun or a scraping gun in the actual application, and is mainly used for spraying or gluing the surface of an object in the industrial production and manufacturing industry.
At present, the existing hot melt adhesive scraping gun simply realizes the glue spraying work of the hot melt adhesive through a body, and in the pushing process of a metering pump body, the whole body is easy to generate excessive glue discharge due to overlarge internal pressure, and when the metering pump body stops working, the hot melt adhesive is easy to generate a backflow phenomenon, so that the glue breaking phenomenon is easy to generate; meanwhile, when the colloid is smeared on the surface of an object, the sprayed glue layer is not uniform enough, and frictioning lines are generated, so that the adhesion effect is influenced, and the requirement on production equipment with higher adhesion requirements cannot be met.
Disclosure of Invention
To the not enough of existence among the above-mentioned prior art, the utility model aims to provide a rifle is scraped in novel hot melt adhesive spraying with interior pressure balance and even frictioning.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a novel hot melt adhesive spraying scraper comprises a base, and a metering pump body and a spraying gun body which are installed on the base, wherein the back of the base is provided with at least one glue injection hole, the front end of the base is provided with a plurality of glue outlets, two sides of the base are respectively provided with a filtering cavity and a backflow cavity, the glue injection hole is communicated with the filtering cavity, the filtering cavity is communicated with the backflow cavity through a flow guide channel, the filtering cavity is provided with a filter, the water outlet of the filter is in butt joint with the flow guide channel, the backflow cavity is provided with a backflow valve, and the water outlet of the backflow valve is in butt joint with the flow guide channel;
the base is provided with an extraction port and a push port, a liquid inlet pipe of the metering pump body is in butt joint with the extraction port, a liquid outlet pipe of the metering pump body is in butt joint with the push port, the extraction port is communicated with the flow guide channel, and the push port is communicated with the glue outlet and the reflux cavity;
the glue inlet and the glue outlet of the spraying gun body are in butt joint, the scraper of the spraying gun body comprises a first scraper and a second scraper which are mutually covered, a glue outlet gap is arranged between the first scraper and the second scraper, and the tail end of the first scraper or the tail end of the second scraper extends outwards to form a glue scraping end with the width of 0.1mm to 0.4 mm.
Preferably, the spraying rifle body includes the pedestal, be provided with out gluey control cavity in the pedestal, it communicates with a gluey mouth with going out to glue the control cavity, it is provided with the needle bar to go out gluey control cavity, the outside is arranged in and is connected with the cylinder on the needle bar top, the cylinder is connected with the solenoid valve that is used for controlling the cylinder control, the needle bar bottom is provided with the toper inclined plane and is located a mouthful department of gluing the control cavity, it is the toper to go out gluey control cavity's mouth.
Preferably, first scraper blade is connected with the pedestal, first scraper blade is located out to glue clearance department and is provided with out gluey recess, go out gluey recess and the accent intercommunication of going out gluey control cavity, it places the thin slice and covers and closes out gluey recess to go out gluey recess, the thin slice is provided with out gluey breach.
Preferably, the filter comprises a first lock head and a first hollow tube connected to the first lock head, the first lock head is screwed to the orifice of the filtering chamber, a filter screen is arranged on the side surface of the first hollow tube, and the first hollow tube is located in the filtering chamber and is butted with the flow guide channel.
Preferably, the backflow valve comprises a second lock connected to a second hollow tube on the second lock, the second lock is screwed on the cavity of the backflow chamber, a spring is installed in the second hollow tube, the end top of the spring is contacted with a movable block, the top end of the movable block is conical, the bottom end of the movable block is provided with a piston block, an opening is formed in the side face of the second hollow tube and located between the piston block and the tube opening of the second hollow tube, the tube opening of the second hollow tube is in butt joint with the flow guide channel, and the tube opening of the second hollow tube is matched with the top end of the movable block in shape.
Preferably, the metering pump body is provided with a drive motor for controlling the operation of the metering pump body.
Due to the adoption of the scheme, the backflow cavity is additionally arranged in the base, the backflow valve is arranged in the backflow cavity, backflow conduction is allowed when the internal pressure is too high, a part of colloid pushed into the spraying gun body is released, the internal pressure is reduced, certain internal pressure is ensured to exist in the spraying gun body, and the internal pressure balance is ensured; simultaneously, the frictioning end that the scraper that the spraying rifle body was located was provided with can carry out even knife coating to the colloid surface at the in-process of spraying colloid for the colloid of spraying is more even, level and smooth, solves the frictioning line problem.
Drawings
Fig. 1 is a schematic diagram of the structural principle of the embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a back of the base according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of one side of the base according to the embodiment of the present invention.
Fig. 4 is a schematic structural diagram of the other side of the base according to the embodiment of the present invention.
Fig. 5 is a schematic structural view of a coating gun body according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of the interior of the base of the coating gun body according to the embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a frictioning end according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a scraper according to an embodiment of the present invention.
Fig. 9 is a schematic structural diagram of a filter according to an embodiment of the present invention.
Fig. 10 is a schematic structural diagram of a reflux valve according to an embodiment of the present invention.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 10, the novel hot melt adhesive spraying scraper gun provided in this embodiment includes a base 1, and a metering pump body 2 and a spraying gun body 3 mounted on the base 1, the back of the base 1 is provided with at least one glue injection port 4, the front end of the base 1 is provided with a plurality of glue outlets 5, two sides of the base 1 are respectively provided with a filtering chamber 6 and a backflow chamber 7, the glue injection port 4 is communicated with the filtering chamber 6, the filtering chamber 6 is communicated with the backflow chamber 7 through a flow guide channel 8, the filtering chamber 6 is provided with a filter 9, a water outlet of the filter 9 is in butt joint with the flow guide channel 8, the backflow chamber 7 is provided with a backflow valve 10, and a water outlet of the backflow valve 10 is in;
the base 1 is provided with an extraction port 11 and a push port 12, a liquid inlet pipe of the metering pump body 2 is in butt joint with the extraction port 11, a liquid outlet pipe of the metering pump body 2 is in butt joint with the push port 12, the extraction port 11 is communicated with the flow guide channel 8, and the push port 11 is communicated with the glue outlet 5 and the backflow cavity 7;
the glue inlet and the glue outlet 5 of the spraying gun body 3 are butted, the scraper 13 of the spraying gun body 3 comprises a first scraper 14 and a second scraper 15 which are mutually covered, a glue outlet gap 16 is arranged between the first scraper 14 and the second scraper 15, and the tail end of the first scraper 14 or the tail end of the second scraper 15 extends outwards to form a glue scraping end 17 with the width of 0.1mm to 0.4 mm.
Further, the spraying rifle body 3 includes pedestal 18, is provided with out in the pedestal 18 and glues control cavity 19, goes out to glue control cavity 19 and goes out gluey mouthful 5 intercommunication, goes out gluey control cavity 19 and is provided with needle bar 20, and the outside is arranged in on needle bar 20 top and is connected with cylinder 21, and cylinder 21 is connected with the solenoid valve 22 that is used for controlling cylinder 21 control, and needle bar 20 bottom is provided with toper inclined plane 23 and is located out gluey control cavity 19's mouth department, and the mouth that goes out gluey control cavity 19 is the toper.
Further, first scraper blade 14 is connected with pedestal 18, and first scraper blade 14 is located out gluey clearance 16 department and is provided with out gluey recess 24, goes out gluey recess 24 and goes out the accent intercommunication of gluey control cavity 19, goes out gluey recess 24 and places thin slice 25 and covers and close gluey recess 24, and thin slice 25 is provided with out gluey breach 26.
Further, the filter 9 includes a first locking head 27 and a first hollow tube 28 connected to the first locking head 27, the first locking head 27 is screwed to the cavity of the filtering chamber 6, a filtering net 29 is disposed on the side of the first hollow tube 28, and the first hollow tube 28 is located in the filtering chamber 6 and is butted with the diversion channel 8.
Further, the reflux valve 10 includes that the second tapered end 30 is connected in the second hollow tube 31 on the second tapered end 30, the second tapered end 30 is twisted and is fixed in the cavity department of backward flow cavity 7, install spring 32 in the second hollow tube 31, the terminal top of spring 32 touches movable block 33, movable block 33 top is the toper, the bottom is provided with piston block 34, second hollow tube 31 side is located and is provided with opening 35 between the mouth of pipe of piston block 33 and second hollow tube 31, the mouth of pipe of second hollow tube 31 docks with water conservancy diversion passageway 8, the mouth of pipe of second hollow tube 31 matches each other with movable block 33 top shape.
The specific working principle of the embodiment is as follows:
the colloid filters, the colloid (hot melt adhesive) is injected from the glue injection port 4, and then enters the filtering chamber 6 and enters the filtering chamber 6, and under the action of the metering pump body 2, the colloid enters the first hollow tube 28 from passing through the filter screen 29, so that the injected colloid is filtered;
the colloid is pushed, the colloid entering the first hollow tube 28 enters the flow guide channel 8 again under the action of the metering pump body 2 and is then extracted through the liquid inlet pipe of the metering pump body 2, the colloid is input into the spray gun body 3 through the liquid outlet pipe of the metering pump body 2 and fills the backflow chamber, and in the pushing process, when the pushing internal pressure is too large, internal pressure is generated in the backflow chamber 7, the spring 32 is compressed, the movable block 33 loses the top contact with the flow guide through pipe 8, the backflow chamber 7 and the flow guide through pipe 8 form a passage, so that some colloid can be released to enter the flow guide through pipe 8, and the effect of internal pressure balance is achieved;
spraying control, the colloid sent by the metering pump body 2 enters the colloid outlet control cavity 19 of the base 18, at the moment, the cavity opening of the colloid outlet control cavity 19 is in a closed state under the contact of the needle rod 20, when the opening is needed, the electromagnetic valve 22 controls the cylinder 21 to push, the needle rod 20 pushes downwards and is separated from the cavity opening of the colloid outlet control cavity 19, so that the cavity opening is in an open state, and the colloid enters the scraper 13;
spraying knife coating work, just can enter into out gluey recess 24 by the colloid of going out gluey control cavity 19 input, go out the notch of gluey recess 24 then by thin slice 25 lid close, and utilize thin slice 25 to fill out gluey clearance 16, and whole gluey width of going out then has the width decision of the play gluey breach 26 of thin slice 25, therefore, according to different demands, can select to change the thin slice 25 of different play gluey breach 26, it just overflows from going out gluey breach 26 specifically to go out gluey, follow afterwards and glue clearance 16 discharge, colloid after the discharge just can the spraying with the object on, and through the principle of removing the knife coating, the width is the effect that the frictioning end 17 of 0.1mm to 0.4mm just can carry out the frictioning to the spraying in-process, will make the colloid of spraying more even, level and smooth, solve the frictioning problem.
Meanwhile, for more accurate control of the glue discharging amount, the metering pump body 2 of the embodiment is provided with the driving motor 36 for controlling the operation of the metering pump body 2, and the control of the pumping speed and the pumping amount of the metering pump body 2 is achieved through the control of the rotating speed and the rotating number of the driving motor 36.
In addition, it should be noted that in this embodiment, the corresponding seal rubber ring 100 is disposed at the butt joint and conduction position of each component, so as to achieve the sealing performance of the package.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (6)
1. The utility model provides a rifle is scraped in novel hot melt adhesive spraying which characterized in that: the spraying gun comprises a base, a metering pump body and a spraying gun body, wherein the metering pump body and the spraying gun body are installed on the base, at least one glue injection opening is formed in the back of the base, a plurality of glue outlets are formed in the front end of the base, a filtering cavity and a backflow cavity are respectively formed in two sides of the base, the glue injection opening is communicated with the filtering cavity, the filtering cavity is communicated with the backflow cavity through a flow guide channel, a filter is installed in the filtering cavity, a water outlet of the filter is in butt joint with the flow guide channel, a backflow valve is arranged in the backflow cavity, and a water outlet of;
the base is provided with an extraction port and a push port, a liquid inlet pipe of the metering pump body is in butt joint with the extraction port, a liquid outlet pipe of the metering pump body is in butt joint with the push port, the extraction port is communicated with the flow guide channel, and the push port is communicated with the glue outlet and the reflux cavity;
the glue inlet and the glue outlet of the spraying gun body are in butt joint, the scraper of the spraying gun body comprises a first scraper and a second scraper which are mutually covered, a glue outlet gap is arranged between the first scraper and the second scraper, and the tail end of the first scraper or the tail end of the second scraper extends outwards to form a glue scraping end with the width of 0.1mm to 0.4 mm.
2. The novel hot melt adhesive spraying scraper gun of claim 1, characterized in that: the spraying rifle body includes the pedestal, be provided with out gluey control cavity in the pedestal, it communicates with a gluey mouth with going out to glue the control cavity, it is provided with the needle bar to go out gluey control cavity, the outside is arranged in and is connected with the cylinder on the needle bar top, the cylinder is connected with the solenoid valve that is used for controlling the cylinder control, the needle bar bottom is provided with the toper inclined plane and is located the accent department of a gluey control cavity, the accent of going out gluey control cavity is the toper.
3. The novel hot melt adhesive spraying scraper gun of claim 2, characterized in that: the first scraper blade is connected with the pedestal, the first scraper blade is located a gluey clearance department and is provided with out the gluey recess, go out gluey recess and the accent intercommunication of going out gluey control cavity, it places the thin slice and covers and closes out gluey recess to go out gluey recess, the thin slice is provided with out gluey breach.
4. The novel hot melt adhesive spraying scraper gun of claim 1, characterized in that: the filter comprises a first lock head and a first hollow pipe connected to the first lock head, the first lock head is screwed on the orifice of the filtering chamber, a filter screen is arranged on the side surface of the first hollow pipe, and the first hollow pipe is positioned in the filtering chamber and is butted with the flow guide channel.
5. The novel hot melt adhesive spraying scraper gun of claim 1, characterized in that: the backflow valve comprises a second lock head connected to a second hollow tube on the second lock head, the second lock head is screwed on a cavity of the backflow cavity, a spring is installed in the second hollow tube, the tail end of the spring is in top contact with a movable block, the top end of the movable block is conical, the bottom end of the movable block is provided with a piston block, an opening is formed in the side face of the second hollow tube and located between the piston block and the pipe orifice of the second hollow tube, the pipe orifice of the second hollow tube is in butt joint with the flow guide channel, and the pipe orifice of the second hollow tube is matched with the top end of the movable block in shape.
6. The novel hot melt adhesive spraying scraper gun of claim 1, characterized in that: the metering pump body is provided with a driving motor for controlling the metering pump body to work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021446206.4U CN212820825U (en) | 2020-07-21 | 2020-07-21 | Novel hot melt adhesive spraying scraper gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021446206.4U CN212820825U (en) | 2020-07-21 | 2020-07-21 | Novel hot melt adhesive spraying scraper gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212820825U true CN212820825U (en) | 2021-03-30 |
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ID=75118996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021446206.4U Active CN212820825U (en) | 2020-07-21 | 2020-07-21 | Novel hot melt adhesive spraying scraper gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212820825U (en) |
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2020
- 2020-07-21 CN CN202021446206.4U patent/CN212820825U/en active Active
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