CN214007482U

CN214007482U - Plunger pump for pneumatic spraying machine

Info

Publication number: CN214007482U
Application number: CN202022799234.0U
Authority: CN
Inventors: 袁铁柱; 袁方明
Original assignee: Zhejiang Sinaier Coating Equipment Manufacturing Co ltd
Current assignee: Zhejiang Sinaier Coating Equipment Manufacturing Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-08-20
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses a plunger pump for pneumatic flush coater, include the coating jar, be located plunger stop valve mechanism in the coating jar, inhale the jar, be located the suction stop valve mechanism that inhales the jar, the inserted hole has been seted up to the coating jar, plunger stop valve mechanism includes plunger stop valve, plunger valve rod and the plunger end that links to each other with plunger valve rod lower extreme, plunger stop valve barrel locates on the plunger valve rod, inhale jar upper end with the coating jar lower extreme links to each other, offer the bin outlet and the feed inlet that are used for getting rid of coating on the plunger stop valve, the plunger stop valve with the plunger end contacts sealedly, suction stop valve mechanism is including helping the sucking bar, inhaling stop valve and helping the sucking disc. The utility model discloses a plunger pump for pneumatic flush coater has the spraying operation of various coatings such as granule, sieve, thick type fire prevention coating and real mineral varnish, has solved the characteristics of the high difficulty spraying that exists at home and abroad.

Description

Plunger pump for pneumatic spraying machine

Technical Field

The utility model belongs to the technical field of the spraying equipment, concretely relates to plunger pump for pneumatic flush coater.

Background

At present, the coating technology at home and abroad is rapidly developed, the requirements on coating technical equipment are continuously improved, particularly the requirements on environmental protection are higher and higher, and the aim of starting a plunger pump of a spraying machine has the following defects;

the current special coating which can not be finished by the plunger pump of the pneumatic spray coater at home and abroad is as follows: the existing extrusion spraying is operated by an extruder, the extruder has large weight and is blocked in movement, and a motor cannot output an air source. And a special air compressor is required to be used for inflating and assisting in spraying, and only 500-700 square meters can be sprayed every day. If need spraying 1000 squares must change the extruded article, otherwise can't accomplish the operation, only add into with portable can spray gun one spoon in addition, send the pressure spraying with air compressor machine air, because the aerial fog that splashes is great, harms and environmental pollution to operating personnel. The effectiveness is lower and only 300-400 square meters can be sprayed per day. At present, tiles can not be pasted on the outer wall of a high building, the tiles fall off to injure passers-by walking and parked vehicles under the high building, so that the time is limited for real stone paint spraying operation, and the fireproof coating is indispensable for spraying specific fireproof coating in military warehouses and grain storage depots, such as warships, ships and aircraft carriers, and can not meet the requirements due to manual paint brushing of the fireproof coating. The application specially researches and develops the plunger pump for the pneumatic spraying machine, and the spraying efficiency can reach about 2000-2500 square meters per day through tests.

SUMMERY OF THE UTILITY MODEL

For solving the problem that proposes among the above-mentioned background art, the utility model provides a plunger pump for pneumatic flush coater has the spraying operation of various coatings such as granule, sieve, thick type fire prevention coating and real mineral varnish, has solved the characteristics of the high degree of difficulty spraying that exists at home and abroad.

In order to achieve the above object, the utility model provides a following technical scheme: including the coating jar, be located plunger stop valve mechanism in the coating jar, inhale the jar, be located and inhale the suction stop valve mechanism that inhales the jar, the inserted hole has been seted up to the coating jar, plunger stop valve mechanism includes plunger stop valve, plunger valve rod and the plunger stop that links to each other with plunger valve rod lower extreme, plunger stop valve barrel locates on the plunger valve rod, inhale the jar upper end with the coating jar lower extreme links to each other, offer bin outlet and the feed inlet that is used for getting rid of coating on the plunger stop valve, plunger stop valve with the plunger stop contacts sealedly, suction stop valve mechanism is including helping the sucking rod, inhaling stop valve and helping the sucking disc, inhale stop valve cup connect in help the outer wall of sucking rod, help the sucking disc be fixed in help the lower extreme of sucking rod, help the sucking rod upper end and plunger stop thread to link to each other.

Furthermore, plunger end valve overcoat has been cup jointed first sealing washer, plunger end valve's outer wall threaded connection has the solid fixed ring who is used for fixed first sealing washer, plunger end valve with paint cylinder sliding fit.

Furthermore, the outer wall of the suction cylinder is provided with a screw hole, and a positioning screw for limiting the moving range of the suction stop valve is connected with the screw hole in a threaded manner.

Furthermore, the plunger end is conical, and a first key groove is formed in the outer wall of the plunger end.

Furthermore, the suction assisting disc is fixed at the lower end of the suction assisting rod through a nut, the suction assisting disc comprises a first iron sheet, a spacer bush and a second iron sheet, and the first iron sheet, the spacer bush and the second iron sheet are sequentially sleeved on the suction assisting rod and fixed at the lower end of the suction assisting rod through the nut.

Further, inhale and end position valve including inhaling and end position valve casing and compress tightly the cap, inhale end position valve casing with compress tightly cap threaded connection, inhale end position valve casing with compress tightly and be equipped with the second sealing washer between the cap, inhale and end and seted up the bulge loop on the position valve casing.

Further, the suction cylinder is connected with the coating cylinder through a hoop or threads.

Further, 4 discharge openings are provided.

Furthermore, the plunger stop head is provided with a conical surface and a plane, and the conical surface or the plane is respectively contacted and sealed with the plunger stop valve.

The utility model has the advantages that: the utility model provides a plunger pump for pneumatic flush coater, has that life is permanent, and spraying effect is good, and vaporific coating is few when the spraying, and the energy saving, environmental protection pollutes for a short time, and it is convenient to remove, improves the quality of spraying greatly, makes things convenient for the spraying operation of various coatings such as granule, sieve, thick type fire prevention coating and real mineral varnish.

Drawings

Fig. 1 is a schematic perspective view of embodiment 1 of the present invention;

fig. 2 is an exploded schematic view of embodiment 1 of the present invention;

fig. 3 is a suction stop valve mechanism according to embodiment 1 of the present invention;

fig. 4 is a plunger stop valve mechanism in embodiment 1 of the present invention;

fig. 5 is a half sectional view of embodiment 1 of the present invention;

fig. 6 is an enlarged view of a portion a of fig. 5 according to embodiment 1 of the present invention;

fig. 7 is an enlarged view of a portion B of fig. 5 according to embodiment 1 of the present invention;

fig. 8 is a schematic view of a plunger stop valve in embodiment 1 of the present invention;

fig. 9 is a schematic view of a first assembly of the plunger valve stem according to embodiment 1 of the present invention;

fig. 10 is an exploded view of a suction stop valve in embodiment 1 of the present invention;

fig. 11 is a perspective view of a plunger stop in embodiment 1 of the present invention;

FIG. 12 is an exploded view of a suction cylinder and a paint cylinder in example 1 of the present invention;

fig. 13 is an assembly view of a plunger stop and a plunger valve stem according to embodiment 2 of the present invention;

fig. 14 is an exploded view of a suction cylinder and a paint cylinder in embodiment 3 of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-12, the present invention provides a plunger pump for a pneumatic spraying machine, including a coating cylinder 2, a plunger stop valve mechanism 3 located in the coating cylinder 2, a suction cylinder 4, and a suction stop valve mechanism 5 located in the suction cylinder 4, wherein the coating cylinder 2 is provided with an insertion opening 21, the plunger stop valve mechanism 3 includes a plunger stop valve 31, a plunger valve rod 32, and a plunger stop 33 connected to the lower end of the plunger valve rod 32, the plunger stop valve 31 is sleeved on the plunger valve rod 32, the upper end of the suction cylinder 4 is connected to the lower end of the coating cylinder 2, the plunger stop valve 31 is provided with a discharge opening 311 and a feed opening 312 for discharging coating, the plunger stop valve 31 is in contact with the plunger stop 33, the suction stop valve mechanism 5 includes a suction-assisting rod 51, a suction stop valve 52, and a suction-assisting cup 53, the suction stop valve 52 is sleeved on the outer wall of the suction-assisting rod 51, the suction-assisting disc 53 is fixed at the lower end of the suction-assisting rod 51, and the upper end of the suction-assisting rod 51 is in threaded connection with the plunger stop 33.

By adopting the structure, the inserting hole 21 of the coating cylinder 2 is inserted into the pump seat, the upper end of the suction cylinder 4 is in threaded connection with the lower end of the coating cylinder 2 by adopting inner and outer threads, the upper end of the suction-assisting rod 51 is in threaded connection with the plunger stop 33, the upper end of the plunger valve rod 32 is in threaded connection with the cylinder piston rod, the cylinder is powered by adopting an air compressor, the cylinder is started, the piston rod of the cylinder drives the plunger valve rod 32 and the suction-assisting rod 51 to do reciprocating vertical motion so as to drive the suction-assisting disc 53 to do reciprocating vertical motion, at the moment, the suction-assisting disc 53 plays a role in stirring the coating and assisting in conveying the coating, a coating channel is reserved between the suction-assisting rod 51 and the inner wall of the suction cylinder 4, the coating is conveyed into the suction cylinder 4 in an auxiliary manner, the suction stop valve 52 is driven to do reciprocating vertical motion in the suction cylinder 4 by the action of air pressure, and the suction cylinder 4 generates negative pressure by the reciprocating vertical motion of the suction-assisting disc 53, the paint stored in the paint can is sucked into the suction cylinder 4, at this time, the outer diameter of the suction stop valve case 521 is smaller than the inner diameter of the suction cylinder 4, so that the sucked coating material flows through the outer surface of the suction valve case 521 into the suction cylinder 4, the piston rod drives the plunger valve rod 32 to move vertically, when the plunger stop 33 is far away from the feed inlet 312, the coating flows into the plunger stop valve 31 through the feed inlet 312, then is output to the pump base through the discharge outlet 311, and finally the coating in the coating tank is output through the pump base and the spraying work is completed, the utility model has the advantages of long service life, good spraying effect, easy strain during the use of the plunger stop valve 31, improved service life of the first sealing ring 313 on the plunger stop valve 31, when spraying, the atomized paint is less, energy is saved, environmental pollution is less, the movement is convenient, labor and time are saved, and the spraying quality is greatly improved.

In this embodiment, a first sealing ring 313 is sleeved outside the plunger stop valve 31, a fixing ring 314 for fixing the first sealing ring 313 is connected to an outer wall of the plunger stop valve 31 in a threaded manner, and the plunger stop valve 31 is in sliding fit with the coating cylinder 2.

By adopting the structure, the first sealing ring 313 is used for enhancing the connection strength between the plunger stop valve 31 and the inner wall of the paint cylinder 2, the air tightness is enhanced, air leakage is prevented, and the first sealing ring 313 is made of high-strength wear-resistant materials, so that the service life of the sliding device is prolonged.

In this embodiment, a screw hole 41 is formed in an outer wall of the suction cylinder 4, and a set screw 42 for limiting a moving range of the suction stop valve 52 is screwed into the screw hole 41.

By adopting the structure, the sealing ring is arranged between the positioning screw 42 and the screw hole 41, so that the air tightness in the cylinder body of the suction cylinder 4 is ensured, the positioning screw 42 is used for limiting the moving range of the suction stop valve 52 in the suction cylinder 4, the excessive moving range of the suction stop valve 52 is prevented, the stability of the device is greatly improved, and the limit position of the lower end of the positioning screw 42 is clamped on the convex ring 524.

In this embodiment, the plunger stop 33 is tapered, and a first key slot 331 is formed on an outer wall of the plunger stop 33.

By adopting the structure, the plunger stop head 33 is conical, can be better attached to the plunger stop valve 31, the attaching degree is improved, the device is ensured not to be unexpected in the using process, the stability of the device is greatly improved, the key groove arranged on the plunger stop head 33 is convenient for assembly and installation, and the setting is not limited, and the plunger stop head can also be in other shapes such as a cylinder shape.

In this embodiment, the suction assisting disc 53 is fixed to the lower end of the suction assisting rod 51 through a nut 534, the suction assisting disc 53 includes a first iron sheet 531, a spacer sleeve 532, and a second iron sheet 533, and the first iron sheet 531, the spacer sleeve 532, and the second iron sheet 533 are sequentially sleeved on the suction assisting rod 51 and fixed to the lower end of the suction assisting rod 51 through the nut 534.

Adopt above-mentioned structure, use the components of a whole that can function independently to set up the service environment that the adaptation can be better is different, change different diameter size iron sheet according to the demand, or select suitable iron sheet according to the internal diameter size of scribbling the storage bucket, the effect of supplementary pay-off has been improved greatly, after accomplishing the spraying operation, be convenient for to helping the sucking disc 53 clean, improve the life who helps sucking disc 53, help sucking disc 53 also can adopt the integral type structure according to actual conditions, specifically be first iron sheet 531, spacer 532 and second iron sheet 533 adopt integrated into one piece, and be not limited to split type structure.

In this embodiment, the suction stop valve 52 includes a suction stop valve housing 521 and a pressing cap 522, the suction stop valve housing 521 is screwed to the pressing cap 522, a second sealing ring 523 is disposed between the suction stop valve housing 521 and the pressing cap 522, and a protruding ring 524 is disposed on the suction stop valve housing 521.

Adopt above-mentioned structure, inhale the second sealing washer 523 between the valve casing 521 of ending a position and the pressure cap 522 and be used for improving and inhale the joint strength between the valve 52 of ending a position and the rod 51 of helping inhaling and guarantee that coating can not flow through the space between the valve 52 of ending a position and the rod 51 of helping inhaling, the pressure cap 522 is used for fixed second sealing washer 523 and prevents that the second sealing washer 523 from removing in the use, improve the stability of device greatly, inhale and end the valve 52 structure of ending a position and also can adopt integrated into one piece, specifically inhale and end valve casing 521 and pressure cap 522 design as an organic whole.

In this embodiment, the suction cylinder 4 is connected to the coating cylinder 2 by a screw thread.

By adopting the structure, the device is convenient to assemble and use, plays a role in positioning and installation, and is convenient to disassemble after the device is used.

In this embodiment, there are 4 discharge openings 311.

Adopt above-mentioned structure, play the effect of reposition of redundant personnel, coating is thick form mobility poor, sets up the row of material condition that 4 bin outlet 311 can improve the device greatly, and the structure that rises simultaneously can actual conditions design into a plurality of bin outlets 311 to be not limited to 4.

In this embodiment, the plunger stop 33 has a tapered surface 332 and a flat surface 333, and the tapered surface 332 contacts and seals with the plunger stop valve 31.

By adopting the connection mode, the conical surface 332 of the plunger stop head 33 is clamped with the plunger stop valve 31, so that the bonding strength between the outer wall of the plunger stop head 33 and the plunger stop valve 31 can be ensured.

Example 2

Based on embodiment 1, as shown in fig. 13, the plunger stop 33 is provided with a tapered surface 332 and a flat surface 333, the flat surface 333 is in contact with the plunger stop valve 31 for sealing, and the sealing effect can also be achieved by adopting the flat surface 333 for contact.

Example 3

Based on embodiment 1, as shown in fig. 14, the suction cylinder 4 is connected with the paint cylinder 2 through an anchor ear 6, specifically, the suction cylinder 4 and the paint cylinder 2 are in an insertion design and fixed by the anchor ear, and the structure is convenient for dismounting the suction cylinder 4 and the paint cylinder 2, and can be dismounted even if rusted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A plunger pump for a pneumatic sprayer, characterized by: including coating jar (2), be located plunger stop valve mechanism (3) in coating jar (2), inhale jar (4), be located inhale stop valve mechanism (5) in inhaling jar (4), inserted hole (21) have been seted up in coating jar (2), plunger stop valve mechanism (3) are including plunger stop valve (31), plunger valve rod (32) and plunger stop (33) that link to each other with plunger valve rod (32) lower extreme, plunger stop valve (31) cover is located on plunger valve rod (32), inhale jar (4) upper end with coating jar (2) lower extreme links to each other, offer bin outlet (311) and feed inlet (312) that are used for getting rid of coating on plunger stop valve (31), plunger stop valve (31) with plunger stop (33) contact sealedly, inhale stop valve mechanism (5) including helping to inhale pole (51), The suction stop valve (52) and the suction assisting disc (53) are connected, the suction stop valve (52) is sleeved on the outer wall of the suction assisting rod (51), the suction assisting disc (53) is fixed at the lower end of the suction assisting rod (51), and the upper end of the suction assisting rod (51) is in threaded connection with the plunger stop head (33).

2. A plunger pump for a pneumatic spray applicator as set forth in claim 1, wherein: the plunger end valve (31) has cup jointed first sealing washer (313) outward, the outer wall threaded connection of plunger end valve (31) has fixed ring (314) that are used for fixed first sealing washer (313), plunger end valve (31) with coating jar (2) sliding fit.

3. A plunger pump for a pneumatic spray applicator as set forth in claim 1, wherein: the outer wall of the suction cylinder (4) is provided with a screw hole (41), and a positioning screw (42) used for limiting the moving range of the suction stop valve (52) is connected with the screw hole (41) in an internal thread manner.

4. A plunger pump for a pneumatic spray applicator as set forth in claim 1, wherein: the plunger stop (33) is conical, and a first key groove (331) is formed in the outer wall of the plunger stop (33).

5. A plunger pump for a pneumatic spray applicator as set forth in claim 1, wherein: the lower extreme that helps sucking disc (53) to be fixed in helping sucker rod (51) through nut (534), help sucking disc (53) including first iron sheet (531), spacer bush (532) and second iron sheet (533), first iron sheet (531), spacer bush (532) and second iron sheet (533) cup joint in proper order on helping sucker rod (51) and be fixed in the lower extreme that helps sucker rod (51) through nut (534).

6. A plunger pump for a pneumatic spray applicator as set forth in claim 1, wherein: the suction stop valve (52) comprises a suction stop valve casing (521) and a pressing cap (522), the suction stop valve casing (521) is in threaded connection with the pressing cap (522), a second sealing ring (523) is arranged between the suction stop valve casing (521) and the pressing cap (522), and a convex ring (524) is arranged on the suction stop valve casing (521).

7. A plunger pump for a pneumatic spray applicator as set forth in claim 1, wherein: the suction cylinder (4) is connected with the coating cylinder (2) through a hoop (6) or threads.

8. A plunger pump for a pneumatic spray applicator as set forth in claim 1, wherein: the bin outlet is provided with 4.

9. A plunger pump for a pneumatic spray applicator as set forth in claim 1, wherein: the plunger stop head (33) is provided with a conical surface (332) and a plane (333), and the conical surface (332) or the plane (333) is respectively in contact seal with the plunger stop valve (31).