Spraying device for processing office stationery placing rack

Abstract

The invention relates to the technical field of spraying equipment, in particular to a spraying device for processing an office stationery placing shelf, which comprises a spray head body, the spray head body is provided with a spraying cavity and a first chute, a sliding plate is in sliding fit in the first chute, the sliding plate is located at the outlet of the spraying cavity, and the sliding plate is provided with more than two nozzles; a movable ring is arranged in the spray cavity in a sliding fit mode, an expansion bag mechanism is arranged on the movable ring, an electromagnet mechanism is arranged in the spray head body, and the expansion bag mechanism is in driving connection with the electromagnet mechanism. A feeding switching mechanism is arranged on the spray head body, and a coating feeding pipe and a water inlet pipe are arranged on the feeding switching mechanism. Through the arrangement of the feeding conversion mechanism, after the spraying work of the device is finished, the water inlet pipe is adjusted to communicate with the spraying cavity, and water sequentially passes through the spraying cavity and the nozzle to clean the interiors of the spraying cavity and the nozzle, so that the corrosion phenomenon caused by internal residual paint and the influence on the next use after the paint is cured in the device are prevented.

Description

Technical Field

[0001] The invention relates to the technical field of spraying equipment, and in particular to a spraying device for processing an office stationery display rack. Background Art

[0002] The office stationery display rack is an important tool for organizing and storing office stationery. It can help people manage office supplies in an orderly manner and improve work efficiency.

[0003] The spraying process is a very important part of the display rack production process. The coating formed by spraying can isolate the display rack from direct erosion by the external environment, such as moisture, oxygen, chemicals, etc., thereby reducing damage caused by natural factors such as corrosion and oxidation. Spraying also has the effect of beautifying the surface of the product. By spraying different colors and patterns, the product has a better visual effect and improves the overall aesthetics, thereby attracting consumers' attention and increasing the value of the product.

[0004] Chinese patent number CN112474120B discloses a spraying device for processing office stationery display racks, including a device body, a first nozzle fixed at the front end, a first nozzle opening at the front end of the first nozzle, a first spray cavity at the rear end, a connecting pipe arranged in the device body, a first arc groove arranged on one side of the first nozzle, and a second arc groove arranged on the other side; a second nozzle arranged on one side of the first nozzle, a second nozzle opening arranged at the front end of the second nozzle, a second spray cavity arranged at the rear end of the second nozzle, a first arc protrusion arranged at the rear end of the second nozzle, a third nozzle opening arranged on the first arc protrusion, a third spray cavity arranged on the first arc protrusion, and connected with the second spray cavity; a third nozzle arranged on the other side of the first nozzle, a fourth nozzle opening arranged at the front end of the third nozzle, a fourth spray cavity arranged at the rear end of the third nozzle, a second arc protrusion arranged at the rear end of the third nozzle, a fifth nozzle opening arranged on the second arc protrusion, a fifth spray cavity arranged on the second arc protrusion, and the first arc protrusion and the second arc protrusion are hinged to the device body. The device improves the spraying efficiency.

[0005] The device does not have facilities for internal cleaning. After the spraying work is completed, if the residual paint in the device is not removed in time, the paint liquid will solidify in the device and cause blockage at the nozzle, affecting the next spraying effect. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a spraying device for processing an office stationery display rack to solve the above problem of lack of cleaning facilities.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] A spraying device for processing an office stationery display rack comprises a nozzle body, wherein the nozzle body is provided with a spray chamber and a first slide groove, wherein a sliding plate is slidably matched in the first slide groove, wherein the sliding plate is located at the outlet of the spray chamber, and wherein two or more nozzles are provided on the sliding plate; wherein a movable ring is slidably matched in the spray chamber, wherein an expansion bag mechanism is provided on the movable ring, wherein an electromagnet mechanism is provided in the nozzle body, wherein the expansion bag mechanism is drivingly connected to the electromagnet mechanism; wherein a feed conversion mechanism is provided in the nozzle body, wherein a paint feed pipe and a water feed pipe are provided on the feed conversion mechanism, wherein a first flow channel is provided in the nozzle body, wherein the first flow channel is located between the spray chamber and the feed conversion mechanism;

[0009] The nozzle body is provided with an air inlet connector, and the air inlet connector is provided with a first air inlet channel and a second air inlet channel. The spray chamber is fluidly connected with the first air inlet channel through the second flow channel. The first air inlet channel is plugged with an air intake volume adjustment plate, and also includes a current intensity adjustment mechanism. The air intake volume adjustment plate is linked to the current intensity adjustment mechanism, the electromagnet mechanism is electrically connected to the current intensity adjustment mechanism, and the feed conversion mechanism is linked to the current intensity adjustment mechanism.

[0010] Preferably, a key block is provided on the movable ring, a key slot is provided on the inner wall of the spray chamber, the key block and the key slot are slidably matched, and a first spring is installed in the key slot on a side of the key block away from the sliding plate.

[0011] Preferably, the expansion bag mechanism comprises an annular pressure plate slidably arranged on a movable ring, and an elastic bag is installed between a side of the movable ring close to the sliding plate and the annular pressure plate.

[0012] Preferably, the feed conversion mechanism includes a positioning frame fixed on the nozzle body, a slider is slidably fitted in the positioning frame, the output end of the paint feed pipe and the output end of the water inlet pipe are both fixed on the slider, and a first adjustment handle is provided on the slider.

[0013] Preferably, the electromagnet mechanism includes a first electromagnet arranged on an annular pressure plate, a first mounting groove is opened in the nozzle body, an annular bracket is rotatably arranged in the first mounting groove, more than two second electromagnets are arranged on the annular bracket, the central angle formed by the plurality of second electromagnets is 300 degrees, and the first electromagnet and the second electromagnet are magnetically repelled; a slot is coaxially arranged on the annular bracket, and a card slot is opened on the inner wall of the slot.

[0014] Preferably, an air motor is provided in the nozzle body, the output end of the second air inlet channel is fluidly connected with the power input end of the air motor through a third flow channel, the output end of the air motor is fixedly connected with a rotating rod, the other end of the rotating rod is connected with a clamping cylinder through a key, and a clamping block is provided on the clamping cylinder, and when the clamping cylinder is inserted into the slot, the clamping groove and the clamping block are engaged.

[0015] Preferably, a second slide groove is provided in the nozzle body, a connecting rod is slidably fitted in the second slide groove, a connecting ring is provided at one end of the connecting rod, the clamping cylinder is rotatably connected to the connecting ring, and the other end of the connecting rod is fixedly connected to the first adjustment handle.

[0016] Preferably, a third slide groove is provided in the nozzle body, the first slide groove is connected to the inside of the third slide groove, a driving rod is slidably fitted in the third slide groove, the sliding plate is fixedly connected to the driving rod, and a second spring is installed on one side of the sliding plate in the first slide groove.

[0017] Preferably, a third mounting groove is opened in the nozzle body, the third slide groove is connected to the inside of the third mounting groove, a driving ring is rotatably connected in the third mounting groove, the rotating rod is coaxially fixedly connected to the driving ring, and the driving ring is set to an elliptical shape. When the rotating rod rotates, the driving ring rotates synchronously with the rotating rod and presses against the driving rod to make the sliding plate move along the first slide groove.

[0018] Preferably, the current intensity adjustment mechanism includes a pull rod, one end of the pull rod is fixedly connected to a side of the air intake adjustment plate passing through the first air intake channel, the other end of the pull rod is fixedly connected to a second adjustment handle, a sleeve rod is slidably fitted on the pull rod, a resistor bar is provided on the inner wall of the sleeve rod, an electrode block is provided on the pull rod inside the sleeve rod, the resistor bar is electrically connected to the electrode block, and the first electromagnet and the second electromagnet are both electrically connected to the resistor bar, a push rod is provided on the connecting rod, and the other end of the push rod is fixedly connected to the sleeve rod.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention sets a feed conversion mechanism. After the spraying work of the device is completed, the water inlet pipe is adjusted to be connected with the spray chamber, and the water passes through the spray chamber and the nozzle in turn, thereby cleaning the inside of the spray chamber and the nozzle to prevent corrosion caused by residual paint inside and the paint from being solidified in the device and affecting the next use.

[0021] 2. Through the coordinated setting of the movable ring, the expansion bag mechanism and the electromagnet mechanism, during the spraying process of the present invention, the expansion bag expands and adheres to the sliding plate, and cooperates with the sliding plate to continuously move back and forth in a straight line. The elastic bag can wipe off the impurities on the sliding plate to prevent the impurities from accumulating at the nozzle and causing the nozzle to be blocked; and then by using the setting of the current intensity adjustment mechanism, the user can adjust the expansion degree of the elastic bag, thereby adjusting the number of nozzles used, so that the device can adjust the spraying range according to demand, and while the spraying range is adjusted, the ventilation area of ​​the first air inlet channel is automatically adjusted accordingly, so that the paint injection pressure is always close to consistent, thereby improving the overall spraying effect.

[0022] 3. During the cleaning process of the present invention, the ventilation area of ​​the first air inlet channel is automatically adjusted to the maximum, and at the same time, the number of nozzles used is reduced to a minimum, thereby enhancing the pressure of the water spray and improving the flushing effect; during the cleaning process, the movable ring continuously performs a linear reciprocating motion in the spray chamber, which can scrape off the paint adhered to the inner wall of the spray chamber, further improving the cleaning effect of the spray chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the structure of the nozzle body of the present invention.

[0025] Figure 3 It is a schematic structural diagram of a cutaway movable ring of the present invention.

[0026] Figure 4 For the present invention Figure 3 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0027] Figure 5 It is a structural schematic diagram of the connection between the electromagnet mechanism and the clamping cylinder of the present invention.

[0028] Figure 6 It is a structural schematic diagram of the electromagnet mechanism of the present invention.

[0029] Figure 7 It is a structural schematic diagram of the connection between the rotating rod and the clamping cylinder of the present invention.

[0030] Figure 8 It is a structural schematic diagram of the connection between the feed conversion mechanism and the current intensity adjustment mechanism of the present invention.

[0031] Fig. 9 It is a structural schematic diagram of the connection between the air intake amount regulating plate and the current intensity regulating mechanism of the present invention.

[0032] Fig.10 It is a schematic structural diagram of a cutaway sleeve rod of the present invention.

[0033] In the attached drawings: 1. nozzle body; 2. spray chamber; 3. movable ring; 4. first slide groove; 5. sliding plate; 6. nozzle; 7. expansion bag mechanism; 8. feed conversion mechanism; 9. electromagnet mechanism; 10. paint feed pipe; 11. water inlet pipe; 12. first flow channel; 13. air inlet joint; 14. first air inlet channel; 15. second air inlet channel; 16. push rod; 17. air inlet volume adjustment plate; 18. current intensity adjustment mechanism; 19. key block; 20. keyway; 21. first spring; 22. annular pressure plate; 23. first electromagnet; 24. elastic bag ; 25. Positioning frame; 26. Slider; 27. First adjusting handle; 28. Ring bracket; 29. ​​Second electromagnet; 30. Slot; 31. Card slot; 32. Pneumatic motor; 33. Rotating rod; 34. Card sleeve; 35. Card block; 36. Linking rod; 37. Connecting ring; 38. Second slide groove; 39. Third slide groove; 40. Driving rod; 41. Second spring; 42. Third mounting groove; 43. Driving ring; 44. Pull rod; 45. Second adjusting handle; 46. Sleeve rod; 47. Resistor bar; 48. Electrode block; 49. Trigger; 50. Third flow channel. DETAILED DESCRIPTION

[0034] The following will refer to Figures 1 to 10 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0035] A spraying device for processing office stationery display racks, such as Figure 1-Figure 5 and Fig. 9 As shown, it includes a nozzle body 1, on which a spray chamber 2 and a first slide groove 4 are provided, a sliding plate 5 is slidably fitted in the first slide groove 4, the sliding plate 5 is located at the outlet of the spray chamber 2, and more than two nozzles 6 are provided on the sliding plate 5; a movable ring 3 is slidably fitted in the spray chamber 2, an expansion bag mechanism 7 is provided on the movable ring 3, an electromagnet mechanism 9 is provided in the nozzle body 1, and the expansion bag mechanism 7 is drivingly connected to the electromagnet mechanism 9; a feed conversion mechanism 8 is provided on the nozzle body 1, and a paint feed pipe 10 and a water inlet pipe 11 are provided on the feed conversion mechanism 8, the paint feed pipe 10 is connected to an external paint conveying device, and the water inlet pipe 11 is connected to an external water conveying device, and a first flow channel 12 is provided in the nozzle body 1, and the first flow channel 12 is located between the spray chamber 2 and the feed conversion mechanism 8; through the coordinated arrangement of the feed conversion mechanism 8, the paint feed pipe 10 and the water inlet pipe 11, the user can choose to convey paint or water to the spray chamber 2 according to needs.

[0036] An air inlet connector 13 is provided on the nozzle body 1, and the air inlet connector 13 is connected to an external air supply device. A solenoid valve is provided inside the air inlet connector 13, and the solenoid valve is not drawn. The trigger 49 is used to control the solenoid valve, the first electromagnet 23 and the second electromagnet 29. This is the prior art (for example, through circuit control, the trigger 49 is equivalent to a switch). When the trigger 49 is pressed, the first electromagnet 23 and the second electromagnet 29 are energized and generate magnetic repulsion, and the solenoid valve opens at the same time.

[0037] The air intake connector 13 is provided with a first air intake channel 14 and a second air intake channel 15. The spray chamber 2 is fluidly connected to the first air intake channel 14 through the second flow channel. The second flow channel is not drawn. The first air intake channel 14 is plugged with an air intake volume adjustment plate 17, which also includes a current intensity adjustment mechanism 18. The air intake volume adjustment plate 17 is linked to the current intensity adjustment mechanism 18, the electromagnet mechanism 9 is electrically connected to the current intensity adjustment mechanism 18, and the feed conversion mechanism 8 is linked to the current intensity adjustment mechanism 18.

[0038] When the electromagnet mechanism 9 is energized, it drives the expansion bladder mechanism 7 to move with the movable ring 3 to the exit of the spray chamber 2, and then the expansion bladder mechanism 7 expands. It should be noted that the expansion degree of the expansion bladder mechanism 7 is inversely proportional to the number of nozzles 6 used, that is, the higher the expansion degree, the fewer nozzles 6 are used and the smaller the spraying range. The expansion degree of the expansion bladder mechanism 7 is affected by the magnetic repulsion force between the first electromagnet 23 and the second electromagnet 29. By setting the current intensity adjustment mechanism 18, the strength of the magnetic repulsion force between the first electromagnet 23 and the second electromagnet 29 can be adjusted, that is, the user can adjust the expansion degree of the expansion bladder mechanism 7 according to demand, so as to adjust the number of nozzles 6 used, that is, adjust the spraying range.

[0039] like Figure 2 and Figure 3 As shown, a key block 19 is provided on the movable ring 3, and a key slot 20 is opened on the inner wall of the spray chamber 2. The key block 19 and the key slot 20 are slidably matched. A first spring 21 is installed in the key slot 20 on the side of the key block 19 away from the sliding plate 5. Through the matching arrangement of the key block 19 and the key slot 20, the movable ring 3 can slide in the spray chamber 2.

[0040] like Figure 3 and Figure 4 As shown, the expansion bag mechanism 7 includes an annular pressure plate 22 slidably arranged on the movable ring 3, and an elastic bag 24 is installed between the side of the movable ring 3 close to the sliding plate 5 and the annular pressure plate 22. When the annular pressure plate 22 slides on the movable ring 3 and approaches the sliding plate 5, the air pressure in the elastic bag 24 increases and causes the elastic bag 24 to expand.

[0041] like Figure 2 and Figure 8As shown, the feed conversion mechanism 8 includes a positioning frame 25 fixed on the nozzle body 1, a slider 26 is slidably fitted in the positioning frame 25, the output end of the paint feed pipe 10 and the output end of the water inlet pipe 11 are both fixed on the slider 26, and a first adjustment handle 27 is provided on the slider 26; when the first adjustment handle 27 is pushed, the position of the slider 26 can be adjusted so that the paint feed pipe 10 or the water inlet pipe 11 is aligned with the first flow channel 12, thereby realizing the conversion of water supply and paint supply into the spray chamber 2.

[0042] like Figure 2-Figure 8 As shown, the electromagnet mechanism 9 includes a first electromagnet 23 arranged on an annular pressure plate 22, a first mounting groove is provided in the nozzle body 1, an annular bracket 28 is rotatably provided in the first mounting groove, and more than two second electromagnets 29 are provided on the annular bracket 28, and the central angle of the circle surrounded by the plurality of second electromagnets 29 is 300 degrees; when the first electromagnet 23 and the second electromagnet 29 are magnetically repelled, the first electromagnet 23 applies a thrust to the annular pressure plate 22 under the action of the magnetic repulsive force, and since gas is stored in the elastic bag (24), the annular pressure plate 22 will carry the movable ring 3 along the key groove 20 to move close to the sliding plate 5 (at the same time, the first spring 21 is stretched to store force), and when the movable ring 3 moves to the outlet of the spray chamber 2, the movable ring 3 no longer moves, and the annular pressure plate 22 continues to move under the influence of the thrust, so that the annular pressure plate 22 slides on the movable ring 3, and the air pressure in the elastic bag 24 increases to expand the elastic bag 24, thereby adjusting the number of nozzles 6 used.

[0043] A slot 30 is coaxially arranged on the annular bracket 28, and a card slot 31 is opened on the inner wall of the slot 30; an air motor 32 is arranged in the nozzle body 1, and the output end of the second air inlet channel 15 is fluidly connected with the power input end of the air motor 32 through the third flow channel 50, and the output end of the air motor 32 is fixedly connected with a rotating rod 33; the air motor 32 can drive the rotating rod 33 to rotate, and the other end of the rotating rod 33 is connected with a clamping cylinder 34 through a key, and a clamping block 35 is provided on the clamping cylinder 34.

[0044] A second slide groove 38 is provided in the nozzle body 1, and a linkage rod 36 is slidably fitted in the second slide groove 38. One end of the linkage rod 36 is provided with a connecting ring 37. The clamping cylinder 34 is rotatably connected to the connecting ring 37. The other end of the linkage rod 36 is fixedly connected to the first adjustment handle 27.

[0045] When the first adjusting handle 27 is pushed to align the water inlet pipe 11 with the first flow channel 12, the connecting rod 36 moves synchronously with the first adjusting handle 27, and the connecting ring 37 drives the clamping tube 34 to insert into the slot 30, and the clamping slot 31 is engaged with the clamping block 35. At this time, the rotation of the rotating rod 33 will cause the annular bracket 28 to rotate synchronously. When the annular bracket 28 rotates until the second electromagnet 29 no longer corresponds to the first electromagnet 23, the first spring 21 releases its force, contracts and pulls the movable ring 3 to reset. That is, during the rotation of the annular bracket 28, the movable ring 3 continuously performs a linear reciprocating motion in the spray chamber 2.

[0046] like Figure 2 , Figure 5 and Figure 7 As shown, a third slide groove 39 is provided in the nozzle body 1, the first slide groove 4 is connected with the inside of the third slide groove 39, a driving rod 40 is slidably fitted in the third slide groove 39, the sliding plate 5 is fixedly connected with the driving rod 40, and a second spring 41 is installed on one side of the sliding plate 5 in the first slide groove 4; a third installation groove 42 is opened in the nozzle body 1, the third slide groove 39 is connected with the inside of the third installation groove 42, a driving ring 43 is rotatably connected in the third installation groove 42, the rotating rod 33 is coaxially fixedly connected with the driving ring 43, and the driving ring 43 is set to an elliptical shape.

[0047] When the rotating rod 33 rotates, the driving ring 43 rotates synchronously with the rotating rod 33, and the driving ring 43 pushes against the driving rod 40 to make the sliding plate 5 move along the first sliding groove 4 (at the same time, the second spring 41 is stretched to store force). When the driving ring 43 rotates to its top point and passes over the driving rod 40, the second spring 41 releases its force to contract and pull the sliding plate 5 to reset. During the use of the device, the sliding plate 5 performs a linear reciprocating motion in the first sliding groove 4, that is, the position of the nozzle 6 is continuously adjusted so that the utilization rate of each nozzle 6 is close to the same. Combined with the setting of the elastic bag 24, the elastic bag 24 can wipe off impurities (such as dust, solidified paint, etc.) on the sliding plate 5 to prevent impurities from accumulating at the nozzle 6 and causing blockage at the nozzle 6.

[0048] like Figure 8-Figure 10 As shown, the current intensity adjustment mechanism 18 includes a pull rod 44, one end of which is fixedly connected to a side of the air intake adjustment plate 17 passing through the first air intake channel 14, and the other end of the pull rod 44 is fixedly connected to a second adjustment handle 45. A sleeve rod 46 is slidably fitted on the pull rod 44, and a resistor bar 47 is provided on the inner wall of the sleeve rod 46. An electrode block 48 is provided on the pull rod 44 inside the sleeve rod 46, and the resistor bar 47 is electrically connected to the electrode block 48, and the first electromagnet 23 and the second electromagnet 29 are both electrically connected to the resistor bar 47. A push rod 16 is provided on the linkage rod 36, and the other end of the push rod 16 is fixedly connected to the sleeve rod 46.

[0049] When the pull rod 44 is driven to move by the second adjustment handle 45, the electrode block 48 moves synchronously with the pull rod 44, and combined with the setting of the resistor bar 47, the current intensity on the first electromagnet 23 and the second electromagnet 29 changes, that is, the intensity of the magnetic repulsion force between the first electromagnet 23 and the second electromagnet 29 changes, the expansion degree of the elastic bag 24 changes, and the number of nozzles 6 used (the number of nozzles 6 corresponding to the spray chamber 2 is the number of nozzles used) changes, so that the device can adjust the spraying range according to demand.

[0050] It should be noted that when the number of nozzles 6 used changes, if the air pressure in the spray chamber 2 remains unchanged, the paint injection pressure will be inconsistent with the previous paint injection pressure, resulting in differences in the paint spraying effects before and after, thereby affecting the overall spraying effect; when it is necessary to increase the spraying range, pull the second adjustment handle 45 to move the pull rod 44, so that the resistance becomes larger, the current intensity on the first electromagnet 23 and the second electromagnet 29 is reduced, that is, the intensity of the magnetic repulsion force between the first electromagnet 23 and the second electromagnet 29 is reduced, and the expansion degree of the elastic bag 24 is reduced, so that the number of nozzles 6 used is increased, that is, the spraying range is increased; while the pull rod 44 moves, the air intake adjustment plate 17 is pulled out of the first air intake channel 14, the ventilation area of ​​the first air intake channel 14 is increased, and then the air pressure in the spray chamber 2 is increased, that is, when the number of nozzles 6 used increases, the air pressure in the spray chamber 2 increases, so that the paint injection pressure is always close to the same, thereby improving the overall spraying effect.

[0051] When the device is in use, the trigger 49 is pressed to energize the first electromagnet 23 and the second electromagnet 29 and open the solenoid valve, and the external gas supply device supplies gas to the air intake connector 13. Then, the high-pressure gas in the air intake connector 13 flows into the first air intake channel 14 and the second air intake channel 15 respectively, and the high-pressure gas in the first air intake channel 14 flows into the spray chamber 2 through the second flow channel.

[0052] In the initial state, the paint feed pipe 10 is aligned with the first flow channel 12, and the outer wall of the movable ring 3 blocks the output end of the first flow channel 12. At this time, the external paint delivery device cannot deliver paint to the spray chamber 2. When the first electromagnet 23 and the second electromagnet 29 are energized, the first electromagnet 23 and the second electromagnet 29 are magnetically repelled. The first electromagnet 23 applies a thrust to the annular pressure plate 22 under the action of the magnetic repulsion force. Since gas is stored in the elastic bag (24), the annular pressure plate 22 will move along the key groove 20 close to the sliding plate 5 with the movable ring 3. The movable ring 3 no longer blocks the output end of the first flow channel 12, and the paint delivery device delivers paint to the spray chamber 2. The high-pressure gas in the spray chamber 2 and the setting of the nozzle 6 can realize the spraying function of the device.

[0053] When the movable ring 3 moves to the exit of the spray chamber 2, that is, the movable ring 3 moves to the limit, the movable ring 3 no longer moves, and the annular pressure plate 22 continues to move under the influence of the thrust, so that the annular pressure plate 22 slides on the movable ring 3 close to the sliding plate 5, and the air pressure in the elastic bag 24 increases to make the elastic bag 24 expand. After the elastic bag 24 expands, it is close to the sliding plate 5. It should be noted that the degree of expansion of the elastic bag 24 is affected by the strength of the magnetic repulsion force between the first electromagnet 23 and the second electromagnet 29, that is, the strength of the magnetic repulsion force is different, and the number of nozzles 6 corresponding to the spray chamber 2 is different.

[0054] The high-pressure gas in the second air inlet channel 15 is input into the pneumatic motor 32 through the third flow channel 50. The pneumatic motor 32 drives the rotating rod 33 to rotate slowly (a reducer is provided on the pneumatic motor 32). The clamping cylinder 34 and the driving ring 43 both rotate synchronously with the rotating rod 33. When the driving ring 43 rotates, the driving rod 40 is pressed against and moves along the third slide groove 39 in a direction away from the spray chamber 2. The sliding plate 5 moves in the same direction along the first slide groove 4 (at the same time, the second spring 41 is stretched to store force). When the driving ring 43 rotates to its top and passes over the driving rod 40, the second spring 41 releases its force to contract and pull the sliding plate 5 to reset, so that during the spraying process, the sliding plate 5 slowly performs a linear reciprocating motion, that is, the position of the nozzle 6 is continuously adjusted, so that the utilization rate of the nozzle 6 is close to the same, to prevent the nozzle 6 from having different wear amounts, thereby affecting the spraying effect. In combination with the setting of the elastic bag 24, during the movement of the sliding plate 5, the elastic bag 24 can wipe off the impurities on the sliding plate 5 to prevent the impurities from accumulating at the nozzle 6 and causing the nozzle 6 to be blocked.

[0055] When it is necessary to adjust the spraying range, for example, to increase the spraying range, pull the second adjustment handle 45 to move the pull rod 44 away from the first air inlet channel 14, and the electrode block 48 moves synchronously with the pull rod 44 to increase the resistance, reduce the current intensity on the first electromagnet 23 and the second electromagnet 29, and reduce the intensity of the magnetic repulsion force between the first electromagnet 23 and the second electromagnet 29, that is, the expansion degree of the elastic bag 24 is reduced, and the number of nozzles 6 used is increased, that is, the spraying range is increased.

[0056] It should be noted that when the number of nozzles 6 used increases, if the air pressure in the spray chamber 2 remains unchanged, the paint injection pressure will be lower than the previous paint injection pressure, thereby affecting the overall spraying effect; through the setting of the air intake adjustment plate 17, while pulling the second adjustment handle 45 to move the pull rod 44, the pull rod 44 pulls the air intake adjustment plate 17 out of the first air intake channel 14, and the ventilation area of ​​the first air intake channel 14 increases, thereby increasing the air pressure in the spray chamber 2, that is, when the number of nozzles 6 used increases, the air pressure in the spray chamber 2 increases, so that the paint injection pressure is always close to the same, thereby improving the overall spraying effect.

[0057] When the spraying work is completed, push the first adjustment handle 27 to make the slider 26 slide in the positioning frame 25, so that the water inlet pipe 11 is aligned with the first flow channel 12, and the paint delivery into the spray chamber 2 is converted into water delivery into the spray chamber 2, and then use the high-pressure gas in the spray chamber 2. The water passes through the spray chamber 2 and the nozzle 6 in turn, and then cleans the inside of the spray chamber 2 and the nozzle 6 to prevent corrosion caused by residual paint inside and affect the next use after the paint is solidified in the device.

[0058] It should be noted that when the first adjusting handle 27 moves, the linkage rod 36 will be driven to move synchronously, and the push rod 16 will drive the sleeve rod 46 to move. During the movement of the sleeve rod 46 (the pull rod 44 will not move at this time), the resistance gradually decreases, and the current intensity on the first electromagnet 23 and the second electromagnet 29 increases. When the sleeve rod 46 moves to the top of the second adjusting handle 45, the current intensity on the first electromagnet 23 and the second electromagnet 29 increases to the maximum, and the expansion degree of the elastic bag 24 reaches the maximum, that is, the number of nozzles 6 used is the least, and the sleeve rod 46 continues to move to drive the pull rod 44 to move synchronously, and finally the air intake adjustment plate 17 is completely withdrawn from the first air intake channel 14, so that the ventilation area of ​​the first air intake channel 14 is maximized, that is, when the device is performing cleaning work, the air pressure in the spray chamber 2 is automatically adjusted to the maximum, and the number of nozzles 6 used is the least, which increases the pressure of the water spray, that is, enhances the flushing effect, and cooperates with the sliding plate 5 to slowly perform a linear reciprocating motion in the first slide groove 4, so that each nozzle 6 can be flushed with high intensity.

[0059] It is worth mentioning that, while the first adjusting handle 27 drives the linkage rod 36 to move, it drives the clamping tube 34 to insert into the slot 30, and the clamping slot 31 is engaged with the clamping block 35. At this time, the rotation of the rotating rod 33 will cause the annular bracket 28 to rotate slowly. When the annular bracket 28 rotates until the second electromagnet 29 no longer corresponds to the first electromagnet 23, the first spring 21 contracts and pulls the movable ring 3 to reset. That is, during the cleaning process of the device, the movable ring 3 continuously performs a linear reciprocating motion in the spray chamber 2, which can scrape off the paint adhered to the inner wall of the spray chamber 2. Combined with the water in the spray chamber 2, the cleaning effect of the spray chamber 2 is further improved.

[0060] It should be noted that since the central angle formed by the multiple second electromagnets 29 is 300 degrees, that is, during the rotation of the annular bracket 28, the first electromagnet 23 and the second electromagnet 29 are in a magnetic repulsion state for a longer time, that is, the movable ring 3 is located at the outlet of the spray chamber 2 for a longer time, thereby ensuring the flushing effect on the nozzle 6.

[0061] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0062] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A spraying device for processing an office stationery display rack, comprising a spray head body (1), characterized in that: The nozzle body (1) is provided with a spray chamber (2) and a first slide groove (4), a sliding plate (5) is slidably matched in the first slide groove (4), the sliding plate (5) is located at the outlet of the spray chamber (2), and more than two nozzles (6) are provided on the sliding plate (5); a movable ring (3) is slidably matched in the spray chamber (2), an expansion bag mechanism (7) is provided on the movable ring (3), an electromagnet mechanism (9) is provided in the nozzle body (1), and the expansion bag mechanism (7) is drivingly connected to the electromagnet mechanism (9); a feed conversion mechanism (8) is provided in the nozzle body (1), a paint feed pipe (10) and a water feed pipe (11) are provided on the feed conversion mechanism (8), and a first flow channel (12) is provided in the nozzle body (1), and the first flow channel (12) is located between the spray chamber (2) and the feed conversion mechanism (8); The nozzle body (1) is provided with an air intake connector (13), the air intake connector (13) is provided with a first air intake channel (14) and a second air intake channel (15), the spray chamber (2) is fluidly connected to the first air intake channel (14) through the second flow channel, the first air intake channel (14) is plugged with an air intake volume adjustment plate (17), and also includes a current intensity adjustment mechanism (18), the air intake volume adjustment plate (17) is linked to the current intensity adjustment mechanism (18), the electromagnet mechanism (9) is electrically connected to the current intensity adjustment mechanism (18), and the feed conversion mechanism (8) is linked to the current intensity adjustment mechanism (18).

2. The spraying device for processing an office stationery display rack according to claim 1, characterized in that: The movable ring (3) is provided with a key block (19), the inner wall of the spray chamber (2) is provided with a key slot (20), the key block (19) and the key slot (20) are slidably matched, and a first spring (21) is installed in the key slot (20) on the side of the key block (19) away from the sliding plate (5).

3. The spraying device for processing an office stationery display rack according to claim 1, characterized in that: The expansion bag mechanism (7) comprises an annular pressure plate (22) slidably arranged on a movable ring (3), and an elastic bag (24) is installed between the side of the movable ring (3) close to the sliding plate (5) and the annular pressure plate (22).

4. The spraying device for processing an office stationery display rack according to claim 3, characterized in that: The feed conversion mechanism (8) comprises a positioning frame (25) fixed on the nozzle body (1), a slider (26) slidably fitted in the positioning frame (25), the output end of the paint feed pipe (10) and the output end of the water inlet pipe (11) are both fixed on the slider (26), and a first adjustment handle (27) is provided on the slider (26).

5. The spraying device for processing an office stationery display rack according to claim 4, characterized in that: The electromagnet mechanism (9) comprises a first electromagnet (23) arranged on an annular pressure plate (22); a first mounting groove is provided in the nozzle body (1); an annular bracket (28) is rotatably provided in the first mounting groove; more than two second electromagnets (29) are provided on the annular bracket (28); a central angle formed by the plurality of second electromagnets (29) is 300 degrees; the first electromagnet (23) and the second electromagnet (29) are magnetically repelled; a slot (30) is coaxially provided on the annular bracket (28); a card slot (31) is provided on the inner wall of the slot (30).

6. The spraying device for processing an office stationery display rack according to claim 5, characterized in that: An air motor (32) is provided in the nozzle body (1); the output end of the second air inlet channel (15) is fluidly connected to the power input end of the air motor (32) through a third flow channel (50); the output end of the air motor (32) is fixedly connected to a rotating rod (33); the other end of the rotating rod (33) is connected to a clamping cylinder (34) through a key; a clamping block (35) is provided on the clamping cylinder (34); when the clamping cylinder (34) is inserted into the slot (30), the clamping groove (31) and the clamping block (35) are engaged.

7. The spraying device for processing an office stationery display rack according to claim 6, characterized in that: A second slide groove (38) is provided in the nozzle body (1), a linkage rod (36) is slidably fitted in the second slide groove (38), one end of the linkage rod (36) is provided with a connecting ring (37), the clamping cylinder (34) is rotatably connected to the connecting ring (37), and the other end of the linkage rod (36) is fixedly connected to the first adjustment handle (27).

8. The spraying device for processing an office stationery display rack according to claim 6, characterized in that: A third slide groove (39) is provided in the nozzle body (1), the first slide groove (4) is connected to the inside of the third slide groove (39), a driving rod (40) is slidably fitted in the third slide groove (39), the sliding plate (5) is fixedly connected to the driving rod (40), and a second spring (41) is installed in the first slide groove (4) on one side of the sliding plate (5).

9. The spraying device for processing an office stationery display rack according to claim 8, characterized in that: A third mounting groove (42) is provided in the nozzle body (1), the third slide groove (39) is communicated with the inside of the third mounting groove (42), a driving ring (43) is rotatably connected in the third mounting groove (42), the rotating rod (33) and the driving ring (43) are coaxially fixedly connected, and the driving ring (43) is set to be elliptical. When the rotating rod (33) rotates, the driving ring (43) rotates synchronously with the rotating rod (33) and abuts against the driving rod (40) to make the sliding plate (5) move along the first slide groove (4).

10. The spraying device for processing an office stationery display rack according to claim 7, characterized in that: The current intensity adjustment mechanism (18) comprises a pull rod (44), one end of which is fixedly connected to a side of an air intake adjustment plate (17) passing through the first air intake passage (14), the other end of which is fixedly connected to a second adjustment handle (45), a sleeve rod (46) is slidably fitted on the pull rod (44), a resistor bar (47) is provided on the inner wall of the sleeve rod (46), an electrode block (48) is provided on the pull rod (44) inside the sleeve rod (46), the resistor bar (47) is electrically connected to the electrode block (48), and the first electromagnet (23) and the second electromagnet (29) are both electrically connected to the resistor bar (47), a push rod (16) is provided on the linkage rod (36), the other end of which is fixedly connected to the sleeve rod (46).

Images