CN221311077U

CN221311077U - Back-mounted stone ink spraying machine

Info

Publication number: CN221311077U
Application number: CN202323047614.9U
Authority: CN
Inventors: 吴云峰; 庄庆康; 娄珍雷
Original assignee: Ruian Fenghe Machinery Co ltd
Current assignee: Ruian Fenghe Machinery Co ltd
Priority date: 2023-11-13
Filing date: 2023-11-13
Publication date: 2024-07-12
Anticipated expiration: 2033-11-13

Abstract

The utility model discloses a back-mounted graphite spraying machine, which comprises a main connecting plate, a hollow sleeve and a sliding seat, wherein the hollow sleeve is connected with the main connecting plate; the base is hinged to the sliding seat through a main beam; the auxiliary adjusting assembly comprises an auxiliary connecting plate, an upright post and a telescopic mechanism, wherein the upright post is connected to the auxiliary connecting plate, the telescopic mechanism is respectively hinged to the base and the upright post along two ends of the telescopic direction, the spraying device comprises a pushing assembly and a spray head, the pushing assembly is arranged on the base, and the spray head is connected to the pushing assembly and is close to or far away from the base through the pushing assembly.

Description

Back-mounted stone ink spraying machine

Technical Field

The application belongs to the technical field of spraying equipment, and particularly relates to a back-mounted stone ink spraying machine.

Background

In the prior art, the spraying operation of the graphite is completed by an operator, so that the production line needs a special operator for operating a spraying head, has more labor and higher requirements on the operation level of the operator, cannot spray too little and too much, has poor cooling and insufficient release agent, and leads to difficult demoulding of the forge piece; excessive graphite raw materials are wasted, and the forging is not good in filling; at present, some forging equipment is additionally provided with graphite spraying equipment, but the graphite spraying equipment is inconvenient to adjust when corresponding to dies with different thicknesses and lengths, so that the spraying effect is poor, and further improvement is needed.

Disclosure of Invention

The embodiment of the application aims to provide a back-mounted stone ink spraying machine, which aims to solve the technical problem that a spray head in the prior art is inconvenient to adjust.

In order to achieve the above purpose, the application adopts the following technical scheme: provided is a back-mounted stone ink spraying machine, comprising:

The main adjusting assembly comprises a main connecting plate, a hollow sleeve and a sliding seat, wherein the hollow sleeve is connected with the main connecting plate, and the sliding seat is sleeved on the hollow sleeve and used for moving along the axial direction of the hollow sleeve;

the base is hinged to the sliding seat through a main beam;

The auxiliary adjusting assembly comprises an auxiliary connecting plate, an upright post and a telescopic mechanism, wherein the upright post is connected with the auxiliary connecting plate, two ends of the telescopic mechanism along the telescopic direction are respectively hinged with the base and the upright post, the telescopic mechanism is used for moving along the axial direction of the upright post and rotating around the axial direction of the upright post, and the axial direction of the upright post is parallel to a rotating shaft between the main beam and the sliding seat;

The spraying device comprises a pushing component and a spray head, wherein the pushing component is arranged on the base, and the spray head is connected with the pushing component and is close to or far away from the base through the pushing component.

Optionally, the main adjustment assembly further comprises a main adjustment screw and a nutplate;

The main adjusting screw rod is arranged in the hollow sleeve and is coaxial with the hollow sleeve, the nut plate is in threaded connection with the main adjusting screw rod, and the sliding seat is connected with the nut plate;

The hollow sleeve is provided with a guide groove extending along the axial direction of the hollow sleeve, and at least a part of the nut plate is accommodated in the guide groove and is connected with the guide groove in a sliding manner.

Optionally, the main adjustment assembly further comprises a sleeve and a bearing;

The sleeve is sleeved in the hollow sleeve and is coaxially arranged with the hollow sleeve, and the main adjusting screw rod penetrates through the sleeve and stretches into the hollow sleeve;

The bearing sleeve is arranged on the main adjusting screw rod, and the main adjusting screw rod is connected with the sleeve through the bearing.

Optionally, the main adjusting assembly further comprises an adjusting hand wheel;

The adjusting hand wheel is connected to the main adjusting screw rod and is coaxially arranged with the main adjusting screw rod, and the diameter of the adjusting hand wheel is larger than that of the main adjusting screw rod.

Optionally, the telescopic mechanism comprises a guide cylinder and a guide rod;

The guide cylinder is hinged to the base, the guide rod is accommodated in the guide cylinder and can move along the axial direction of the guide cylinder, and one end, away from the base, of the guide rod is sleeved on the upright post.

Optionally, the pushing assembly comprises a motor, a pushing screw rod, a guide rail and a sliding table;

The motor is connected with the pushing screw rod and used for driving the pushing screw rod to axially rotate along the motor, the guide rail is parallel to the pushing screw rod, and the sliding table is in threaded connection with the pushing screw rod and is in sliding connection with the guide rail;

the spray head is connected to the sliding table.

Optionally, the pushing assembly further comprises a support and a cylinder;

the support is arranged on the sliding table, the air cylinder is arranged on the support, the spray head is connected to the power output end of the air cylinder, and the spray head is connected to the sliding table through the air cylinder and the support.

Optionally, the pushing assembly further comprises an outer sleeve, an inner sliding sleeve and a connecting ring;

The cylinder, the inner sliding sleeve and the connecting ring are all accommodated in the outer sleeve, and the inner sliding sleeve is connected with the cylinder through the connecting ring;

The spray head is connected to the inner sliding sleeve and is connected to the cylinder through the inner sliding sleeve and the connecting ring.

Optionally, the spraying device further comprises a liquid supply pipe penetrating through the outer sleeve and connected to the spray head, and the liquid supply pipe is used for being connected with an external stone ink conveying pipeline.

Optionally, the spraying device further comprises a water blocking cover;

The water retaining cover is provided with a slotted hole, and the outer sleeve penetrates through the slotted hole and enables the spray head and the motor to be located on two sides of the water retaining cover.

The back-mounted stone ink spraying machine provided by the application has the beneficial effects that: compared with the prior art, the spraying device comprises the pushing component and the spray head, and the spray head can be moved along the pushing direction of the pushing component through the pushing component. The spraying device is arranged on the base, and the base can move along the axial direction of the hollow sleeve on one hand due to the fact that the spraying device is connected to the sliding seat, and on the other hand, the base is also hinged to the sliding seat and the upright post through the main beam and the telescopic mechanism respectively, so that the spraying device can rotate relative to the sliding seat and the upright post and the height of the spray head can be adjusted. According to the structure, in the back-mounted stone ink spraying machine provided by the application, the spray head can be conveniently adjusted in the height direction and has a larger moving range in the axial direction, and the adjustment is very flexible and far superior to the prior art.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of a back-mounted graphite sprayer according to an embodiment of the application;

fig. 2 is a top view of the overall structure of the back-mounted graphite sprayer according to the embodiment of the application;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 5 is a schematic view of a nut plate structure according to an embodiment of the present application;

Wherein, each reference sign in the figure: 101. a main connecting plate; 102. a hollow sleeve; 103. a slide; 104. a main adjusting screw rod; 105. a nutplate; 106. a sleeve; 107. a bearing; 108. an adjusting hand wheel; 121. a guide groove; 200. a base; 201. a main beam; 301. an auxiliary connecting plate; 302. a column; 303. a guide cylinder; 304. a guide rod; 305. a long groove; 306. a fastener; 401. a spray head; 402. a motor; 403. pushing the screw rod; 404. a guide rail; 405. a sliding table; 406. a support; 407. a cylinder; 408. an outer sleeve; 409. an inner sliding sleeve; 410. a connecting ring; 411. a liquid supply pipe; 500. a water retaining cover; 501. a slot.

Description of the embodiments

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 5, a back-mounted stone ink spraying machine according to an embodiment of the application will be described. The back-mounted stone ink spraying machine comprises a main adjusting component, a base 200, an auxiliary adjusting component and a spraying device. Wherein:

The main adjusting assembly comprises a main connecting plate 101, a hollow sleeve 102 and a sliding seat 103, wherein the main connecting plate 101 is used for being installed and fixed on forging equipment, and structures such as installation fixing holes and the like which are convenient to install and fix can be preset on the main connecting plate; the hollow sleeve 102 is connected with the main connecting plate 101, and the slide seat 103 is sleeved on the hollow sleeve 102 and used for moving along the axial direction of the hollow sleeve 102; the hollow sleeve 102 in this embodiment may be fixedly connected to the main connection board 101, or may be detachably connected to the main connection board 101; the base 200 is hinged to the sliding seat through the main beam 201, so that the base 200 can rotate relative to the sliding seat 103 along the rotation axes of the two, and can move along the axial direction of the hollow sleeve 102 under the driving of the sliding seat 103.

The auxiliary adjusting assembly comprises an auxiliary connecting plate 301, a stand column 302 and a telescopic mechanism, wherein the auxiliary connecting plate 301 and the main connecting plate 101 are similar in function, and the back-mounted graphite ink spraying machine provided in the embodiment is fixedly arranged on forging equipment through being matched with the main connecting plate 101. The upright post 302 is connected to the auxiliary connection plate 301, and two ends of the telescopic mechanism along the telescopic direction are respectively hinged to the base 200 and the upright post 302, the telescopic mechanism is used for moving along the axial direction of the upright post 302 and rotating around the axial direction of the upright post 302, and the axial direction of the upright post 302 is parallel to the rotating shaft between the main beam 201 and the sliding seat 103. According to this structure, telescopic machanism not only can rotate for stand 302, but also when the axial displacement of hollow cover 102 is followed to base 200 under the drive of slide 103, telescopic machanism also can be along the axial displacement of stand 302 to make telescopic machanism can remain well articulated in stand 302 all the time, the mounted position of self-adaptation forging equipment that can be fine, the easy to assemble debugging, lock telescopic machanism after the installation can realize the fixed in position of base 200.

The spraying device comprises a pushing component and a spray head 401, wherein the pushing component is arranged on the base 200, and the spray head 401 is connected with the pushing component and is close to or far away from the base 200 through the pushing component; according to the back-mounted graphite sprayer provided by the embodiment, the spray head 401 of the back-mounted graphite sprayer can not only reciprocate under the pushing of the pushing component, but also can be driven by the sliding seat 103 and can adjust the height along the axial direction of the hollow sleeve 102, so that the spray head 401 can move in two directions, and the spray head has a large moving range. In addition, because the base 200 can also rotate relative to the hollow sleeve 102 and the upright post 302, the spray head 401 can also be adjusted in a rotating way, and the spray head has wider application scenes. It will be appreciated that by providing a telescoping mechanism in this embodiment, it is possible to ensure smoother rotation of the base 200 relative to the hollow sleeve 102 and the post 302 and a greater angular adjustment range.

In another embodiment of the present application, referring to fig. 1 to 5, the main adjusting assembly further includes a main adjusting screw 104 and a nut plate 105; the main adjusting screw rod 104 is arranged inside the hollow sleeve 102 and is coaxial with the hollow sleeve 102, the nut plate 105 is in threaded connection with the main adjusting screw rod 104, and the sliding seat 103 is connected with the nut plate 105; the hollow sleeve 102 is provided with a guide groove 121 extending axially along the hollow sleeve 102, and at least a portion of the nutplate 105 is received in the guide groove 121 and slidably coupled to the guide groove 121.

By adopting the above structure in this embodiment, the screw rod can be rotated to conveniently drive the nut plate 105 to move, so that the slider 103 connected to the nut plate 105 can be conveniently moved relative to the hollow sleeve 102. Another advantage of the screw structure in combination with the nut is that real-time self-locking can be achieved, and when the main adjustment screw 104 stops rotating, the slide 103 can stay in a relatively fixed position on the hollow sleeve 102. In addition, the guide groove 121 is provided in the present embodiment, and a part of the nut plate 105 is accommodated in the guide groove 121, so that the guide groove 121 serves as a guide structure, thereby stabilizing the moving process of the slider 103.

In another embodiment of the present application, referring to fig. 1 to 5, the main adjusting assembly further includes a sleeve 106 and a bearing 107; the sleeve 106 is sleeved inside the hollow sleeve 102 and is coaxially arranged with the hollow sleeve 102, and the main adjusting screw rod 104 passes through the sleeve 106 and extends into the hollow sleeve 102; the bearing 107 is sleeved on the main adjusting screw rod 104, and the main adjusting screw rod 104 is connected with the sleeve 106 through the bearing 107. In this embodiment, the sleeve 106 is provided, so that the main adjustment screw 104 is more stably fixed, and thus, inclination and deflection are less likely to occur. In addition, the bearing 107 is arranged between the main adjusting screw rod 104 and the sleeve 106, so that the main adjusting screw rod 104 can be better supported, and the rotation process of the main adjusting screw rod 104 is smoother.

In another embodiment of the present application, referring to fig. 1 to 5, the main adjusting assembly further includes an adjusting hand wheel 108; the adjusting handwheel 108 is connected to the main adjusting screw 104 and is arranged coaxially with the main adjusting screw 104, and the diameter of the adjusting handwheel 108 is larger than the diameter of the main adjusting screw 104. By adopting the above structure in this embodiment, the main adjusting screw 104 can be rotated more easily by the adjusting hand wheel 108, which plays a role in saving time and effort.

In another embodiment of the present application, referring to fig. 1 to 5, the telescopic mechanism includes a guide cylinder 303 and a guide rod 304; the guide cylinder 303 is hinged to the base 200, the guide rod 304 is accommodated in the guide cylinder 303 and can move along the axial direction of the guide cylinder 303, and one end, away from the base 200, of the guide rod 304 is sleeved on the upright post 302. In this embodiment, by adopting the above structure, the overall lengths of the guide rod 304 and the guide tube 303 can be flexibly changed, and the telescopic effect is achieved, so that the base 200 can rotate more smoothly relative to the hollow sleeve 102 and the upright post 302, and with particular reference to fig. 2, an elongated slot 305 is formed in the guide tube 303 along the axial direction of the guide tube 303, a corresponding threaded hole can be radially formed in the guide rod 304, a fastening piece 306 for locking is installed in the threaded hole, and after the relative positions of the guide tube 303 and the guide rod 304 are determined, the fastening piece 306 is screwed to lock the guide tube 303 and the guide rod 304 into rigid connection, so that the position of the base 200 is fixed.

In another embodiment of the present application, referring to fig. 1 to 5, the pushing assembly includes a motor 402, a pushing screw 403, a guide rail 404, and a sliding table 405; the motor 402 is connected to the pushing screw 403 and is used for driving the pushing screw 403 to rotate along the axial direction of the motor, the guide rail 404 is parallel to the pushing screw 403, the sliding table 405 is in threaded connection with the pushing screw 403 and is in sliding connection with the guide rail 404, and the spray head 401 is connected with the sliding table 405. Through adopting above-mentioned structure in this embodiment, slip table 405 can be close to or keep away from base 200 under the effect of propelling movement lead screw 403 to realize the propelling movement effect, and then make the shower nozzle 401 that is connected in slip table 405 can be close to or keep away from base 200, realize shower nozzle 401 in the ascending position control of another direction, have stable regulation effect.

In another embodiment of the present application, referring to fig. 1 to 5, the pushing assembly further includes a support 406 and a cylinder 407; the support 406 is arranged on the sliding table 405, the air cylinder 407 is arranged on the support 406, the spray head 401 is connected to the power output end of the air cylinder 407, and the spray head 401 is connected to the sliding table 405 through the air cylinder 407 and the support 406. According to the above structure provided in the present embodiment, the cylinder 407 is fixed to the support 406, and the support 406 is provided on the slide table 405, so that the position of the cylinder 407 itself can be adjusted by the slide table 405; further, since the nozzle 401 is connected to the power output end of the cylinder 407 and can be driven by the cylinder 407 to stretch and retract, the nozzle 401 in the embodiment can have a moving path with two ends in the same direction under the action of the pushing component, so that the moving distance of the nozzle 401 is further expanded, and the nozzle 401 has wider application fields, for example, the nozzle 401 is firstly sent to a set position through the motor 402 and the pushing screw 403, then the nozzle 401 is driven by the cylinder 407 in a reciprocating manner to spray stone ink on a die on the set path, or the nozzle 401 can be pushed to a far end or pulled to a near end by the cylinder 407, and the reciprocating motion of the nozzle 401 is realized by the forward and backward rotation of the motor 402; for a mold with a long longitudinal depth, the motor 402 and the air cylinder 407 can jointly drive the spray head 401 to move, so that long-distance stone ink spraying is realized, the mold is wide in specification, and good adaptability is realized.

In another embodiment of the present application, referring to fig. 1 to 5, the pushing assembly further includes an outer sleeve 408, an inner sleeve 409 and a connecting ring 410; the cylinder 407, the inner sliding sleeve 409 and the connecting ring 410 are all accommodated in the outer sleeve 408, and the inner sliding sleeve 409 is connected with the nozzle 401 of the cylinder 407 through the connecting ring 410 and connected with the inner sliding sleeve 409 and connected with the cylinder 407 through the inner sliding sleeve 409 and the connecting ring 410. In this embodiment, by adopting the above structure, the cylinder 407, the inner sleeve 409 and the connecting ring 410 are accommodated in the outer sleeve 408, so that the movement of the cylinder 407, the inner sleeve 409 and the connecting ring 410 is not interfered by external structures, and thus can move more stably. Further, since the inner sliding sleeve 409 can be adapted to the outer sleeve 408, the radial dimensions of the two can be set to be mutually adapted, which is beneficial to realizing more stable movement of the nozzle 401.

In another embodiment of the present application, referring to fig. 1 to 5, the spraying device further includes a liquid supply pipe 411 passing through the outer sleeve 408 and connected to the spraying head 401, wherein the liquid supply pipe 411 is used for connecting an external graphite conveying pipeline. In this embodiment, the shower head 401 can be continuously sprayed by providing the liquid supply pipe 411. And because the liquid supply pipe 411 is accommodated in the outer sleeve 408, the influence of the external structure on the liquid supply pipe 411 can be effectively avoided, and the stability of the liquid supply process is ensured.

In another embodiment of the present application, referring to fig. 1 to 5, the spraying device further includes a water shield 500, the water shield 500 is provided with a slot 501, and the outer sleeve 408 passes through the slot 501 and positions the nozzle 401 and the motor 402 on two sides of the water shield 500. Through adopting above-mentioned structure, the manger plate cover 500 in this embodiment can avoid effectively that the stone ink that shower nozzle 401 sprayed from enters into electrical equipment such as motor 402, has very good result of use.

The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.

Claims

1. A back-mounted stone ink sprayer, comprising:

The main adjusting assembly comprises a main connecting plate (101), a hollow sleeve (102) and a sliding seat (103), wherein the hollow sleeve (102) is connected to the main connecting plate (101), and the sliding seat (103) is sleeved on the hollow sleeve (102) and used for moving along the axial direction of the hollow sleeve (102);

The base (200) is hinged to the sliding seat through a main beam (201);

the auxiliary adjusting assembly comprises an auxiliary connecting plate (301), a stand column (302) and a telescopic mechanism, wherein the stand column (302) is connected to the auxiliary connecting plate (301), two ends of the telescopic mechanism in the telescopic direction are respectively hinged to the base (200) and the stand column (302), the telescopic mechanism is used for moving along the axial direction of the stand column (302) and rotating around the axial direction of the stand column (302), and the axial direction of the stand column (302) is parallel to the rotating shaft between the main beam (201) and the sliding seat (103);

The spraying device comprises a pushing assembly and a spray head (401), wherein the pushing assembly is installed on the base (200), and the spray head (401) is connected with the pushing assembly and is close to or far away from the base (200) through the pushing assembly.

2. The back-mounted stone ink sprayer of claim 1, wherein:

The main adjusting assembly further comprises a main adjusting screw rod (104) and a nut plate (105);

The main adjusting screw rod (104) is arranged in the hollow sleeve (102) and is coaxial with the hollow sleeve (102), the nut plate (105) is connected with the main adjusting screw rod (104) in a threaded mode, and the sliding seat (103) is connected with the nut plate (105);

The hollow sleeve (102) is provided with a guide groove (121) extending along the axial direction of the hollow sleeve (102), and at least one part of the nut plate (105) is accommodated in the guide groove (121) and is connected with the guide groove (121) in a sliding manner.

3. The back-mounted stone ink sprayer of claim 2, wherein:

The main adjusting assembly further comprises a sleeve (106) and a bearing (107);

The sleeve (106) is sleeved in the hollow sleeve (102) and is coaxially arranged with the hollow sleeve (102), and the main adjusting screw rod (104) penetrates through the sleeve (106) and stretches into the hollow sleeve (102);

The bearing (107) is sleeved on the main adjusting screw rod (104), and the main adjusting screw rod (104) is connected with the sleeve (106) through the bearing (107).

4. A back-mounted stone ink sprayer according to claim 3, wherein:

The main adjusting assembly further comprises an adjusting hand wheel (108);

The adjusting hand wheel (108) is connected to the main adjusting screw rod (104) and is coaxially arranged with the main adjusting screw rod (104), and the diameter of the adjusting hand wheel (108) is larger than that of the main adjusting screw rod (104).

5. The back-mounted stone ink sprayer of claim 1, wherein:

the telescopic mechanism comprises a guide cylinder (303) and a guide rod (304);

The guide cylinder (303) is hinged to the base (200), the guide rod (304) is accommodated in the guide cylinder (303) and can move along the axial direction of the guide cylinder (303), and one end, far away from the base (200), of the guide rod (304) is sleeved on the upright post (302).

6. The back-mounted stone ink sprayer of claim 1, wherein:

The pushing assembly comprises a motor (402), a pushing screw (403), a guide rail (404) and a sliding table (405);

The motor (402) is connected to the pushing screw (403) and is used for driving the pushing screw (403) to axially rotate along the motor, the guide rail (404) is parallel to the pushing screw (403), and the sliding table (405) is in threaded connection with the pushing screw (403) and is in sliding connection with the guide rail (404);

the spray head (401) is connected to the sliding table (405).

7. The back-mounted stone ink sprayer of claim 6, wherein:

the pushing assembly further comprises a support (406) and a cylinder (407);

The support (406) is arranged on the sliding table (405), the air cylinder (407) is arranged on the support (406), the spray head (401) is connected to the power output end of the air cylinder (407), and the spray head (401) is connected to the sliding table (405) through the air cylinder (407) and the support (406).

8. The back-mounted stone ink sprayer of claim 7, wherein:

The pushing assembly further comprises an outer sleeve (408), an inner sleeve (409) and a connecting ring (410);

The air cylinder (407), the inner sliding sleeve (409) and the connecting ring (410) are all accommodated in the outer sleeve (408), and the inner sliding sleeve (409) is connected with the air cylinder (407) through the connecting ring (410);

The spray head (401) is connected to the inner sliding sleeve (409) and is connected to the cylinder (407) through the inner sliding sleeve (409) and the connecting ring (410).

9. The back-mounted stone ink sprayer of claim 8, wherein:

The spraying device further comprises a liquid supply pipe (411) penetrating through the outer sleeve (408) and connected to the spray head (401), and the liquid supply pipe (411) is used for being connected with an external stone ink conveying pipeline.

10. The back-mounted stone ink sprayer of claim 8, wherein:

The spraying device also comprises a water retaining cover (500);

the water retaining cover (500) is provided with a slotted hole (501), and the outer sleeve (408) penetrates through the slotted hole (501) and enables the spray head (401) and the motor (402) to be located on two sides of the water retaining cover (500).