Feeding device of coating machine and using method of feeding device

Abstract

The invention discloses a coating machine feeding device and a using method thereof, and belongs to the field of coating devices.The coating machine feeding device comprises a material storage tank and a material conveying pipe, coating and diluent are poured into the material storage tank and then evenly stirred, and stirred raw materials are conveyed to a coating machine through the material conveying pipe; a baffle is movably inserted into the top wall of the conveying pipe, the flow of the conveying pipe can be changed by inserting the baffle into the conveying pipe, an installation sleeve is vertically and fixedly installed in the conveying pipe, an upper pipe is horizontally and rotationally inserted into the side wall of the installation sleeve, and discharging openings are evenly formed in the side wall of the upper pipe. According to the scheme, by arranging the upper pipe, the lower pipe and the transferring mechanism, bottom-layer raw materials in the space between the bottom wall of the baffle and the inner top wall of the conveying pipe can be transferred to the top layer, so that the layered raw materials are uniformly mixed again, meanwhile, the upper pipe is driven to rotate through the driving mechanism, and a stirring rod can be driven to stir the mixed raw materials; the uniform mixing effect on the raw materials is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of coating devices, more particularly to a coating machine feeding device and a method for using the same. BACKGROUND

[0002] The coating machine is mainly used for the surface coating process production of films, papers and the like. The machine coats a certain functional glue, paint or ink on the base material in a roll form, and then dries and winds it up. The paint and thinner used by the coating machine are usually thoroughly stirred and uniformly mixed in a storage tank, so as to ensure the homogeneity and stability of the paint, and thus ensure the quality and efficiency of the coating process.

[0003] The Chinese patent application with publication number CN114887844A discloses a coating machine feeding device. Through the design of the air hole on the air cylinder and the spring, the recovery speed of the movable plate is ensured to be slow each time, and the discharge amount of the coating liquid is ensured each time.

[0004] The above-mentioned patent still has the following shortcomings:

[0005] In the process, a large amount of raw materials will be stored in the pipeline;

[0006] The raw materials are transported to the coating machine through the pipeline system. In the process of transporting the raw materials through the pipeline, changing the discharge amount by the movable plate will cause part of the raw materials to be in a stationary state. In the stationary state, stratification will occur, especially when the pipeline length is long, curved or the flow rate changes, the stratification will be aggravated to affect the normal work of the coating machine and the quality of the final product.

[0007] Therefore, a coating machine feeding device and a method for using the same are proposed. SUMMARY

[0008] In view of the problems in the prior art, the purpose of the present application is to provide a coating machine feeding device and a method for using the same, which can shorten the time of raw materials staying in the conveying pipe, and thus reduce the probability of stratification of raw materials.

[0009] To solve the above-mentioned problems, the present application adopts the following technical solutions.

[0010] A coating machine feeding device, comprising a storage tank and a conveying pipe, the paint and thinner are poured into the storage tank, then stirred uniformly, and the raw materials after stirring are conveyed to the coating machine through the conveying pipe;

[0011] A baffle is movably inserted on the top wall of the conveying pipe. By inserting the baffle into the conveying pipe, the flow rate of the conveying pipe can be changed,

[0012] A mounting sleeve is vertically and fixedly installed in the conveying pipe. An upper pipe is horizontally and rotatably inserted on the side wall of the mounting sleeve. Discharge ports are uniformly formed on the side wall of the upper pipe.

[0013] The top end of the rotating shaft extends into the mounting sleeve, a lower pipe is movably sleeved on the rotating shaft, the side wall of the lower pipe is uniformly provided with an inlet, the baffle is respectively provided with a driving magnet and a driven magnet, the driving magnet and the driven magnet are attracted to each other, so that the lower pipe can move with the baffle during the movement of the baffle, the baffle can drive the lower pipe to move, and the transfer mechanism is arranged in the feeding pipe to transfer the raw materials in the lower pipe to the upper pipe; the bottom layer raw materials in the space above the bottom wall of the baffle can be transferred to the mounting sleeve by the transfer mechanism, and then flow into the upper pipe along the mounting sleeve, and finally uniformly discharged through the discharge port on the side wall of the upper pipe;

[0014] The side wall of the upper pipe is uniformly provided with a stirring rod, and the mounting sleeve is provided with a driving mechanism for driving the rotation of the upper pipe; the driving mechanism drives the rotation of the upper pipe and the stirring rod, so that the bottom layer raw materials and the top layer raw materials in the discharge port can be stirred, which can uniformly stir the raw materials stored between the bottom wall of the baffle and the top wall of the feeding pipe; and during the rotation of the upper pipe, the raw materials discharged from the discharge port and the top layer raw materials in the feeding pipe can be uniformly mixed, which improves the stirring and mixing efficiency and improves the stirring effect;

[0015] The mounting frame is rotatably installed on the mounting frame, the hole is provided on the disc, the raw materials in the feeding pipe can pass through the hole, and the rotating mechanism is arranged in the feeding pipe to drive the rotation of the disc, the position of the hole changes at any time during the rotation of the disc driven by the rotating mechanism, so that the raw materials at different heights in the feeding pipe can pass through the hole, thereby shortening the time of the raw materials staying in the feeding pipe, timely transferring the raw materials, preventing the raw materials from being layered, and the raw materials passing through the hole falling downward and flowing out through the space between the bottom wall of the baffle and the bottom wall of the feeding pipe.

[0016] Further, the transferring mechanism comprises a guide pipe fixedly inserted on the top wall of the lower pipe, the guide pipe is a telescopic pipe, so the guide pipe can be stretched, and the guide pipe can still keep original shape when the guide pipe is in a negative pressure state, the guide pipe extends to the bottom wall of the mounting sleeve, the upper pipe is communicated with the lower pipe through the guide pipe, the part of the rotating shaft located in the mounting sleeve is fixedly sleeved with a reciprocating screw rod, the bottom end of the rotating shaft extends to the bottom wall of the material conveying pipe, the bottom of the side wall of the rotating shaft is uniformly circumferentially installed with a wind cup, a sliding block is threadedly installed on the reciprocating screw rod, an elastic air bag is installed between the sliding block and the bottom wall of the mounting sleeve, a first one-way valve is installed on the output end of the elastic air bag, the first one-way valve is an output valve, a second one-way valve with an input end communicated with the guide pipe is installed on the input end of the elastic air bag; since the baffle is inserted and pulled along a direction perpendicular to the material conveying pipe, the raw material in the material conveying pipe always passes through the space between the baffle and the bottom wall of the material conveying pipe, that is, the raw material flowing along the material conveying pipe impacts the wind cup, and the wind cup driven by the impact force drives the rotating shaft to rotate, so as to drive the reciprocating screw rod to rotate, in the rotating process of the reciprocating screw rod, the sliding block intermittently stretches and restores the elastic air bag, when the elastic air bag is stretched, the raw material in the elastic air bag is sucked from the lower pipe through the second one-way valve and the guide pipe, when the elastic air bag is extruded, the raw material in the elastic air bag is discharged into the mounting sleeve through the first one-way valve, and the raw material in the mounting sleeve will enter the upper pipe under the action of pressure, so as to realize the function of transferring the bottom layer raw material in the space between the bottom wall of the baffle and the top wall of the material conveying pipe to the top layer.

[0017] Further, the driving mechanism comprises a driving gear fixedly installed on the rotating shaft, a support is fixedly installed on the inner wall of the upper pipe, a driven gear is fixedly installed on the support, the driving gear is engaged with the driven gear, so that in the rotating process of the rotating shaft, the driven gear can be driven to rotate through the driving gear, and then the upper pipe can be driven to rotate through the support, so as to realize the function of driving the upper pipe to rotate.

[0018] Further, the ratio of the inner diameter of the material conveying pipe to the diameter of the disc is 1.1-1.3, so there is a gap between the disc and the inner wall of the material conveying pipe, and part of the raw material passes through the gap between the bottom wall of the disc and the bottom wall of the material conveying pipe and impacts the wind cup, so as to ensure that the wind cup can drive the rotating shaft to rotate.

[0019] Further, the rotating mechanism comprises tooth grooves uniformly formed on the side wall of the disc, a connecting rod penetrating the mounting sleeve is fixedly installed on the support, the connecting rod is rotatably inserted on the side wall of the mounting sleeve, and the end of the connecting rod is fixedly installed with a gear ring engaged with the tooth grooves; so that in the rotating process of the support, the gear ring can be driven to rotate through the connecting rod, and then the disc can be driven to rotate through the gear ring and the tooth grooves engaged with each other, that is, the function of driving the disc to rotate is realized.

[0020] Further, the stirring rod comprises a sleeve and an inner rod, the sleeve is vertically installed on the surface of the upper pipe, the inner rod is movably inserted into the sleeve, and an elastic member is installed between the sleeve and the inner rod. When the inner rod is separated from the contact with the material conveying pipe, the elastic member pushes the inner rod to extend out of the sleeve, at this time, the contact area between the stirring rod and the raw materials is increased, and the stirring effect is improved. During the rotation of the upper pipe driving the sleeve, the inner wall of the material conveying pipe applies resistance to the inner rod, at this time, the inner rod is retracted into the sleeve, and the free rotation of the upper pipe is ensured.

[0021] Further, a cavity is formed in the elastic member, a pressurizing pipe extending into the material conveying pipe is inserted into the bottom wall of the cavity. When the inner rod is hindered by the inner wall of the material conveying pipe and is retracted into the sleeve, the cavity is in a high pressure state, at this time, the upper pipe connected with the cavity through the pressurizing pipe is also in a high pressure state, therefore, the diffusion range of the raw materials discharged from the discharge port is expanded, and the mixing effect is improved during the stirring of the stirring rod.

[0022] Further, a pressure relief valve is installed at the end of the pressurizing pipe, and a third one-way valve communicating with the material conveying pipe is embedded in the side wall of the cavity. The cavity sucks the raw materials from the material conveying pipe through the pressure relief valve, and when the elastic member is extruded, the cavity discharges the raw materials through the pressure relief valve, therefore, the cavity only pressurizes the inside of the upper pipe and does not cause the pressure in the upper pipe to decrease, thereby ensuring that the raw materials discharged from the discharge port can be normally diffused.

[0023] The application also provides a use method suitable for the above-mentioned coating machine feeding device, comprising the following steps:

[0024] S1, pour the paint and the diluent into the storage tank, and stir the paint and the diluent uniformly to form raw materials;

[0025] S2, adjust the depth of the baffle inserted into the material conveying pipe to control the flow of the raw materials passing between the bottom wall of the baffle and the inner bottom wall of the material conveying pipe;

[0026] S3, the raw materials flowing in the material conveying pipe impact the air cup, the air cup drives the rotating shaft to rotate, and then drives the reciprocating wire rod to rotate, so as to drive the elastic air bag to extend and contract intermittently;

[0027] S4, when the elastic air bag extends, the elastic air bag sucks the raw materials from the lower pipe through the conduit;

[0028] S5, when the elastic air bag contracts, the raw materials in the elastic air bag are discharged into the upper pipe through the mounting sleeve, and at the same time, the driving gear on the rotating shaft drives the driven gear to rotate, at this time, the upper pipe rotates synchronously, and drives the stirring rod to rotate, and the raw materials discharged from the discharge port and the initial top layer of raw materials are stirred by the stirring rod, so as to stir the raw materials uniformly;

[0029] S6, the disc is driven to rotate through the connecting rod and the gear ring, so that the raw materials at different heights in the material conveying pipe can be discharged at regular time.

[0030] The beneficial effects of the present application compared to the prior art are:

[0031] (1) The present scheme is capable of transferring the bottom layer of raw materials in the space between the bottom wall of the baffle and the top wall inside the material conveying pipe to the top layer, thereby uniformly mixing the layered raw materials again, and the driving mechanism drives the upper pipe to rotate, which can drive the stirring rod to stir the mixed raw materials together, thereby improving the mixing effect of the raw materials;

[0032] (2) The present scheme is capable of rotating the holes together through the rotation of the disc, so that raw materials at various heights inside the material conveying pipe can be discharged at regular intervals, thereby shortening the time of raw materials staying inside the material conveying pipe and reducing the probability of raw materials being layered;

[0033] (3) The present scheme is capable of increasing the contact area between the stirring rod and the raw materials when the inner rod is separated from the contact of the material conveying pipe, thereby improving the stirring effect;

[0034] (4) The present scheme is capable of increasing the diffusion range of the raw materials discharged from the discharge port by connecting the upper pipe inside the cavity at high pressure through the pressurizing pipe, thereby improving the mixing effect during the stirring process of the stirring rod. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a schematic diagram of the overall structure of the present application;

[0036] Figure 2 is a schematic diagram of the cross-sectional structure of the material conveying pipe of the present application;

[0037] Figure 3 is a schematic diagram of the cross-sectional structure of the material conveying pipe of the present application; Figure 2 is an enlarged structure schematic diagram of position A in the present application;

[0038] Figure 4 is a schematic diagram of the cross-sectional structure of the stirring rod of the present application;

[0039] Figure 5 is a schematic diagram of the combination structure of the disc, hole and gear ring of the present application;

[0040] Figure 6 is a schematic diagram of the combination structure of the material conveying pipe and the baffle of the present application;

[0041] Figure 7 is a schematic diagram of the cross-sectional structure of the lower pipe of the present application.

[0042] Explanation of figure numbers:

[0043] 1, storage tank; 2, feed pipe; 3, baffle; 4, mounting sleeve; 5, upper pipe; 6, rotating shaft; 7, lower pipe; 8, driving magnet; 9, driven magnet; 10, stirring rod; 101, sleeve; 102, inner rod; 11, mounting frame; 12, disc; 13, hole; 14, conduit; 15, reciprocating screw rod; 16, wind cup; 17, driving gear; 18, support; 19, driven gear; 20, gear slot; 21, connecting rod; 22, gear ring; 23, elastic member; 24, cavity; 25, pressurizing pipe; 26, third one-way valve; 27, pressure relief valve; 28, elastic air bag; 29, first one-way valve; 30, second one-way valve. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0045] Embodiment 1:

[0046] Please refer to Figures 1 to 7 A feeding device of a coating machine, comprising a storage tank 1 and a feed pipe 2, coating material and diluent are poured into the storage tank 1, then stirred uniformly, and the stirred raw materials are delivered to the coating machine through the feed pipe 2;

[0047] A baffle 3 is movably inserted on the top wall of the feed pipe 2, and the flow of the feed pipe 2 can be changed by inserting the baffle 3 into the feed pipe 2,

[0048] A mounting sleeve 4 is vertically and fixedly installed in the feed pipe 2, an upper pipe 5 is horizontally and rotatably inserted on the side wall of the mounting sleeve 4, and discharge ports are uniformly formed on the side wall of the upper pipe 5;

[0049] A rotating shaft 6 extending into the mounting sleeve 4 is vertically and rotatably installed in the feed pipe 2, a lower pipe 7 is movably sleeved on the rotating shaft 6, and inlet ports are uniformly formed on the side wall of the lower pipe 7, a driving magnet 8 and a driven magnet 9 are respectively fixedly installed on the baffle 3 and the lower pipe 7, and the driving magnet 8 and the driven magnet 9 attract each other, so that the lower pipe 7 can be driven to move with the baffle 3 by the attraction between the driving magnet 8 and the driven magnet 9 during the movement of the baffle 3, and the baffle 3 can drive the lower pipe 7 to move, and a transfer mechanism for transferring the raw materials in the lower pipe 7 to the upper pipe 5 is arranged in the feed pipe 2; the bottom layer of raw materials in the space above the bottom wall of the baffle 3 can be transferred to the mounting sleeve 4 by the transfer mechanism, then flow along the mounting sleeve 4 to the upper pipe 5, and finally uniformly discharged through the discharge ports on the side wall of the upper pipe 5;

[0050] The side wall of the upper pipe 5 is uniformly provided with the stirring rod 10, and the installation sleeve 4 is provided with a driving mechanism for driving the rotation of the upper pipe 5; the upper pipe 5 and the stirring rod 10 are driven to rotate by the driving mechanism, so that the bottom layer of raw materials and the top layer of raw materials in the discharge port can be stirred and discharged, which can uniformly stir the raw materials stored between the bottom wall of the baffle 3 and the top wall of the material conveying pipe 2; and in the process of rotating the upper pipe 5, the raw materials discharged from the discharge port can be uniformly mixed with the top layer of raw materials in the material conveying pipe 2, which can improve the efficiency of stirring and mixing and improve the stirring effect;

[0051] The material conveying pipe 2 is provided with a mounting frame 11, the mounting frame 11 is rotatably provided with a disc 12, the disc 12 is provided with a hole 13, the raw materials in the material conveying pipe 2 can pass through the hole 13, and the material conveying pipe 2 is provided with a rotating mechanism for driving the rotation of the disc 12; in the process of driving the disc 12 to rotate by the rotating mechanism, the position of the hole 13 changes at any time, so that the raw materials at various heights in the material conveying pipe 2 can pass through the hole 13, thereby shortening the time of the raw materials staying in the material conveying pipe 2, timely transferring the raw materials, preventing the raw materials from being layered, and the raw materials passing through the hole 13 falling downward and flowing out through the space between the bottom wall of the baffle 3 and the inner bottom wall of the material conveying pipe 2.

[0052] As Figure 2As shown, the transfer mechanism includes a guide pipe 14 fixedly inserted on the top wall of the lower pipe 7, the guide pipe 14 is a telescopic pipe, thus the guide pipe 14 can be stretched, and the guide pipe 14 can still keep original shape when the guide pipe 14 is in a negative pressure state, the guide pipe 14 extends to the bottom wall of the mounting sleeve 4, the upper pipe 5 is communicated with the lower pipe 7 through the guide pipe 14, the part of the rotating shaft 6 located in the mounting sleeve 4 is fixedly sleeved with a reciprocating screw rod 15, the bottom end of the rotating shaft 6 extends to the bottom wall of the conveying pipe 2, the bottom of the side wall of the rotating shaft 6 is uniformly circumferentially mounted with a wind cup 16, a sliding block is threadedly mounted on the reciprocating screw rod 15, an elastic air bag 28 is mounted between the sliding block and the bottom wall of the mounting sleeve 4, a first one-way valve 29 is mounted on the output end of the elastic air bag 28, the first one-way valve 29 is an output valve, a second one-way valve 30 is mounted on the input end of the elastic air bag 28, the input end of the second one-way valve 30 is communicated with the guide pipe 14; since the baffle 3 is inserted and pulled along the direction perpendicular to the conveying pipe 2, thus the raw material in the conveying pipe 2 always passes through the space between the baffle 3 and the bottom wall of the conveying pipe 2, i.e. the raw material flowing along the conveying pipe 2 will impact the wind cup 16, and the wind cup 16 impacted by the force drives the rotating shaft 6 to rotate, thus the reciprocating screw rod 15 can be driven to rotate, in the process of rotating of the reciprocating screw rod 15, the sliding block intermittently stretches and restores the elastic air bag 28, when the elastic air bag 28 is stretched, the elastic air bag 28 sucks the raw material from the lower pipe 7 through the second one-way valve 30 and the guide pipe 14, when the elastic air bag 28 is extruded, the raw material in the elastic air bag 28 is discharged into the mounting sleeve 4 through the first one-way valve 29, and the raw material in the mounting sleeve 4 will enter the upper pipe 5 under the action of the pressure, thus the function of transferring the bottom layer raw material in the space between the bottom wall of the baffle 3 and the top wall of the conveying pipe 2 to the top layer is realized.

[0053] As shown in Figure 3 , Figure 5 , the driving mechanism includes a driving gear 17 fixedly mounted on the rotating shaft 6, a support 18 is fixedly mounted on the inner wall of the upper pipe 5, a driven gear 19 is fixedly mounted on the support 18, the driving gear 17 is engaged with the driven gear 19, thus in the process of rotating of the rotating shaft 6, the driven gear 19 can be driven to rotate through the driving gear 17, and the upper pipe 5 can be driven to rotate through the support 18, thus the function of driving the upper pipe 5 to rotate is realized.

[0054] As shown in Figure 2 , the ratio of the inner diameter of the conveying pipe 2 to the diameter of the disc 12 is 1.1-1.3, thus there is a gap between the disc 12 and the inner wall of the conveying pipe 2, part of the raw material passes through the gap between the bottom wall of the disc 12 and the bottom wall of the conveying pipe 2 and impacts the wind cup 16, thus the function of ensuring that the wind cup 16 can drive the rotating shaft 6 to rotate is realized.

[0055] As shown in Figure 5As shown, the rotating mechanism comprises the tooth groove 20 evenly arranged on the sidewall of the disc 12, the connecting rod 21 penetrating the mounting sleeve 4 is fixedly installed on the support 18, the connecting rod 21 is rotatably inserted into the sidewall of the mounting sleeve 4, and the end of the connecting rod 21 is fixedly installed with the gear ring 22 engaged with the tooth groove 20; therefore, the gear ring 22 can be driven to rotate by the connecting rod 21 during the rotation of the support 18, and the disc 12 is further driven to rotate by the gear ring 22 and the tooth groove 20 engaged with each other, that is, the disc 12 is driven to rotate.

[0056] As shown in the figure, Figure 4 The stirring rod 10 comprises a sleeve 101 and an inner rod 102, the sleeve 101 is vertically installed on the surface of the upper pipe 5, the inner rod 102 is movably inserted into the sleeve 101, and the elastic member 23 is installed between the sleeve 101 and the inner rod 102. When the inner rod 102 is separated from the contact with the material conveying pipe 2, the elastic member 23 pushes the inner rod 102 to extend out of the sleeve 101, at this time, the contact area between the stirring rod 10 and the raw materials is increased, and the stirring effect is improved; during the rotation of the upper pipe 5 driving the sleeve 101, the inner wall of the material conveying pipe 2 applies resistance to the inner rod 102, at this time, the inner rod 102 is retracted into the sleeve 101, and it is ensured that the upper pipe 5 can freely rotate.

[0057] As shown in the figure, Figure 4 The cavity 24 is provided with the pressurizing pipe 25 extending into the material conveying pipe 2; when the inner rod 102 is hindered by the inner wall of the material conveying pipe 2 and retracted into the sleeve 101, the cavity 24 is in a high-pressure state, at this time, the upper pipe 5 connected with the cavity 24 through the pressurizing pipe 25 is also in a high-pressure state, therefore, the diffusion range of the raw materials discharged from the discharge port is expanded, and the mixing effect is improved during the stirring process of the stirring rod 10.

[0058] As shown in the figure, Figure 4 The end of the pressurizing pipe 25 is provided with the pressure relief valve 27, and the sidewall of the cavity 24 is embedded with the third one-way valve 26 communicated with the material conveying pipe 2; the cavity 24 sucks the raw materials from the material conveying pipe 2 through the pressure relief valve 27, and when the elastic member 23 is extruded, the cavity 24 discharges the raw materials through the pressure relief valve 27, therefore, the cavity 24 only pressurizes the inside of the upper pipe 5 and will not cause the pressure in the upper pipe 5 to decrease, thereby ensuring that the raw materials discharged from the discharge port can normally diffuse.

[0059] The application also provides a use method suitable for the feeding device of the coating machine, which comprises the following steps:

[0060] S1, pouring the coating and the diluent into the storage tank 1, and stirring the coating and the diluent uniformly to form raw materials;

[0061] S2, adjusting the depth of the baffle 3 inserted into the material conveying pipe 2 to control the flow of the raw materials passing between the bottom wall of the baffle 3 and the inner bottom wall of the material conveying pipe 2.

[0062] S3, the raw material flowing in the delivery pipe 2 impacts the wind cup 16, the wind cup 16 drives the rotating shaft 6 to rotate, and further drives the reciprocating wire rod 15 to rotate, thereby driving the elastic air bag 28 to extend and contract intermittently;

[0063] S4, when the elastic air bag 28 extends, the elastic air bag 28 sucks the raw material from the lower pipe 7 through the conduit 14;

[0064] S5, when the elastic air bag 28 contracts, the raw material in the elastic air bag 28 is discharged into the upper pipe 5 through the mounting sleeve 4, and at the same time, the driving gear 17 on the rotating shaft 6 drives the driven gear 19 to rotate, at this time, the upper pipe 5 rotates synchronously, and drives the stirring rod 10 to rotate, and the raw material discharged from the discharge port is stirred with the initial top layer of raw material by the stirring rod 10, so that the raw material is stirred uniformly;

[0065] S6, the disc 12 is driven to rotate by the connecting rod 21 and the gear ring 22, thereby enabling the raw material at each height in the delivery pipe 2 to be discharged at a fixed time.

[0066] The above is only a preferred specific embodiment of the present application; however, the protection scope of the present application is not limited to this. Any person skilled in the art, according to the technical solution and the improvement concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A coating machine feeding device, comprising a storage tank (1) and a feeding pipe (2); Characterized in that: A baffle (3) is movably inserted on the top wall of the feeding pipe (2), An installation sleeve (4) is vertically and fixedly installed in the feeding pipe (2), an upper pipe (5) is horizontally rotatably inserted on the side wall of the installation sleeve (4), and discharge ports are uniformly formed on the side wall of the upper pipe (5); A rotating shaft (6) extending into the installation sleeve (4) is vertically rotatably installed in the feeding pipe (2), a lower pipe (7) is movably sleeved on the rotating shaft (6), and feed ports are uniformly formed on the side wall of the lower pipe (7); a driving magnet (8) and a driven magnet (9) are respectively fixedly installed on the baffle (3) and the lower pipe (7), the driving magnet (8) and the driven magnet (9) are attracted to each other, and a transfer mechanism for transferring raw materials in the lower pipe (7) to the upper pipe (5) is arranged in the feeding pipe (2); Stirring rods (10) are uniformly installed on the side wall of the upper pipe (5), and a driving mechanism for driving the upper pipe (5) to rotate is arranged in the installation sleeve (4); An installation frame (11) is installed in the feeding pipe (2), a disc (12) is rotatably installed on the installation frame (11), a hole (13) is formed in the disc (12), and a rotating mechanism for driving the disc (12) to rotate is arranged in the feeding pipe (2).

2. The on-line coating machine feeding device according to claim 1, characterized in that: The transfer mechanism comprises a guide pipe (14) fixedly inserted on the top wall of the lower pipe (7), the guide pipe (14) is a telescopic pipe, the guide pipe (14) extends to the bottom wall of the installation sleeve (4), a reciprocating lead screw (15) is fixedly sleeved on the part of the rotating shaft (6) located in the installation sleeve (4), the bottom end of the rotating shaft (6) extends to the bottom wall of the feeding pipe (2), and wind cups (16) are uniformly circumferentially installed on the bottom of the side wall of the rotating shaft (6).

3. The on-line coating machine feeding device according to claim 2, characterized in that: A sliding block is threadedly installed on the reciprocating lead screw (15), an elastic air bag (28) is installed between the sliding block and the bottom wall of the installation sleeve (4), a first one-way valve (29) is installed on the output end of the elastic air bag (28), the first one-way valve (29) is an output valve, and a second one-way valve (30) having an input end in communication with the guide pipe (14) is installed on the input end of the elastic air bag (28).

4. The on-line coating machine feeding device according to claim 3, characterized in that: The driving mechanism comprises a driving gear (17) fixedly installed on the rotating shaft (6), a support (18) is fixedly installed on the inner wall of the upper pipe (5), a driven gear (19) is fixedly installed on the support (18), and the driving gear (17) is engaged with the driven gear (19).

5. The on-line coating machine feeding device according to claim 4, characterized in that: The ratio of the inner diameter of the feeding pipe (2) to the diameter of the disc (12) is 1.1-1.

3.

6. The on-line coating machine feeding device according to claim 5, characterized in that: The rotating mechanism comprises tooth grooves (20) uniformly formed on the side wall of the disc (12), a linkage rod (21) penetrating through the installation sleeve (4) is fixedly installed on the support (18), the linkage rod (21) is rotatably inserted on the side wall of the installation sleeve (4), and a gear ring (22) engaged with the tooth grooves (20) is fixedly installed on the end of the linkage rod (21).

7. The on-line coating machine feeding device according to claim 6, characterized in that: The stirring rod (10) comprises a sleeve (101) and an inner rod (102), the sleeve (101) is vertically installed on the surface of the upper pipe (5), the inner rod (102) is movably inserted into the sleeve (101), and the elastic member (23) is installed between the sleeve (101) and the inner rod (102).

8. The on-line coating machine feeding device according to claim 7, characterized in that: A cavity (24) is formed in the elastic member (23), and a pressurizing pipe (25) extending into the material conveying pipe (2) is inserted into the bottom wall of the cavity (24).

9. The on-line coating machine feeding device according to claim 8, characterized in that: The end of the pressurizing pipe (25) is provided with a pressure relief valve (27), and the side wall of the cavity (24) is embedded with a third one-way valve (26) communicating with the material conveying pipe (2).

10. Use of the feeding device for a coating machine according to any one of claims 1-9, characterized in that: The method comprises the following steps: S1, pouring paint and diluent into the storage tank (1), and stirring the paint and diluent uniformly to form raw materials; S2, adjusting the depth of the baffle (3) inserted into the material conveying pipe (2) to control the flow of the raw materials between the bottom wall of the baffle (3) and the inner bottom wall of the material conveying pipe (2); S3, the raw materials flowing in the material conveying pipe (2) impact the wind cup (16), the wind cup (16) drives the rotating shaft (6) to rotate, and then drives the reciprocating wire rod (15) to rotate, so as to drive the elastic air bag (28) to stretch and shrink intermittently; S4, when the elastic air bag (28) stretches, the elastic air bag (28) sucks raw materials from the lower pipe (7) through the conduit (14); S5, when the elastic air bag (28) shrinks, the raw materials in the elastic air bag (28) are discharged into the upper pipe (5) through the mounting sleeve (4), at the same time, the driving gear (17) on the rotating shaft (6) drives the driven gear (19) to rotate, at this time, the upper pipe (5) rotates synchronously, and drives the stirring rod (10) to rotate, and the raw materials discharged from the discharge port are stirred with the initial top layer of raw materials by the stirring rod (10), so that the raw materials are stirred uniformly; S6, the disc (12) is driven to rotate by the connecting rod (21) and the gear ring (22), so that the raw materials at each height in the material conveying pipe (2) can be discharged regularly.

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