A material feeding device for coating production and use method thereof

Abstract

The present invention relates to the field of paint production technology, specifically to a material discharge device for paint production and a method of use, including an equipment bracket, on which a feed barrel is fixedly mounted, and both ends of the feed barrel are closed. This material discharge device for paint production and a method of use, by starting an angle adjustment motor to drive the gear ring and the feed hopper to rotate, during which the feed hopper is driven by a rotating rod and a guide rod to rotate synchronously with the feed hopper, compared to the existing horizontal adjustment of the discharge position, the front sleeve, the rear sleeve, the feed hopper, and the discharge hopper are matched through a through opening, and the feed hopper and the discharge hopper can be adjusted in the circumferential direction under the premise of realizing the original horizontal adjustment function, on the one hand, lateral discharge can be carried out, and on the other hand, the feed hopper and the discharge hopper can be controlled to be mutually disposed in the direction without moving the entire equipment, and the change of the discharge direction can be realized, thereby improving the flexibility of equipment use.

Description

Technical Field

[0001] The invention relates to the technical field of coating production, and in particular to a feeding device for coating production and a use method thereof. Background Art

[0002] Powder coating is a solid powdered synthetic resin coating composed of solid resin, pigment, filler and additives, which has the characteristics of no solvent pollution, 100% film formation, low energy consumption and high efficiency. In the production process of powder coating, its raw materials need to be transported.

[0003] The existing method of conveying the raw materials of powder coatings usually provides a conveying cylinder and a screw feeding shaft, and the raw materials are conveyed to the discharge position of the conveying cylinder by the rotation of the screw feeding shaft to achieve the conveying effect of the raw materials.

[0004] The existing patent (Announcement No.: CN116788782B) discloses a raw material conveying device for powder coating production, including a connecting base plate, a mounting bracket, a rotating frame, a feeding motor, an adding frame and a connecting cylinder. The top of the connecting base plate is connected to the mounting bracket, the upper part of the mounting bracket is rotatably connected to the rotating frame, the top of the rotating frame is equipped with a feeding motor, the rotating frame is connected to the adding frame, and the bottom of the adding frame is connected to the connecting cylinder. The material discharge position in the above-mentioned prior art can only be adjusted horizontally, and it is difficult to adjust in the circumferential direction. The flexibility of use is poor, and the material discharge diameter is fixed, which is easy to cause clogging after the feed amount increases.

[0005] In view of this, we propose a feeding device for coating production and a method of use. Summary of the invention

[0006] The purpose of the present invention is to provide a material unloading device for paint production and a method of use, so as to solve the problem that the unloading position in the prior art proposed in the above background technology can only be adjusted in the horizontal position, it is difficult to adjust in the circumferential direction, the flexibility of use is poor, and the unloading diameter is fixed, which is easy to cause clogging after the feed amount increases. In order to achieve the above purpose, the present invention provides the following technical solutions: a material unloading device for paint production, including an equipment bracket, a feed barrel is fixedly mounted on the equipment bracket, and both ends of the feed barrel are closed, the feed barrel is rotatably connected to a feed auger inside, and the central axis of the feed auger passes through the rear end of the feed barrel and extends to the outside, a feed motor is fixedly mounted on the equipment bracket, and the feed motor and the feed auger are connected by a belt and a pulley.

[0007] A feed hopper is arranged on the upper side of the rear end of the feeding cylinder, and a lower hopper is arranged on the lower side of the front end of the feeding cylinder. A circumferential commutator is arranged on the feed hopper, the lower hopper and the feeding cylinder.

[0008] The circumferential commutator includes a front sleeve and a rear sleeve opened along the surface of the feed barrel, and the front sleeve and the rear sleeve are set as annular structures, the front sleeve is located on the front side of the feed barrel, and the rear sleeve is located on the rear side of the feed barrel, the lower hopper is movably sleeved on the front sleeve, and the feed hopper is rotatably sleeved on the rear sleeve.

[0009] The front sleeve opening and the rear sleeve opening are both provided with openings which are communicated with the interior of the feeding cylinder.

[0010] The side walls on both sides of the front sleeve opening are rotatably connected with a rotating ring, and a telescopic tube with a ring cover front opening is arranged between the rotating ring and the lower hopper.

[0011] Two guide rods are symmetrically arranged on the lower side of the feeding cylinder. The feed hopper and the lower hopper are fixedly provided with convex seats matching with the guide rods. One end of the guide rod is rotatably connected to the convex seat of the lower hopper, and the other end of the guide rod is movably inserted into the convex seat of the feed hopper.

[0012] The side surface of the feed hopper is rotatably connected with a rotating rod, and a translation motor is fixedly installed on the side surface of the feed hopper. The rotating shaft of the translation motor and the rotating rod are both fixedly installed with mutually meshing transmission gears.

[0013] The surface of the rotating rod is provided with a first thread for adjusting the position of the lower hopper, and the top of the lower hopper is fixedly provided with a first screw hole seat matched with the first thread.

[0014] A gear ring is fixedly connected to the side surface of the feed hopper, an angle adjustment motor corresponding to the gear ring is fixedly installed on the feeding cylinder, and an angle adjustment gear meshing with the gear ring is fixedly installed on the rotating shaft of the angle adjustment motor.

[0015] The lower hopper and the guide rod are provided with flow control components.

[0016] Preferably, the flow control assembly includes a second thread opened along the front side of one of the guide rods.

[0017] The lower hopper is composed of a symmetrical front bucket shell and a rear bucket shell, and a slide groove is opened on the inner wall of the front bucket shell, and a telescopic bucket is fixedly installed on the side surface of the rear bucket shell, and the rear bucket shell is slidably connected along the slide groove through a retractable bucket.

[0018] A second screw hole seat matching with the second thread is fixedly mounted on the side surface of the rear bucket shell.

[0019] The feeding cylinder and the guide rod are provided with monitoring components.

[0020] Preferably, the monitoring assembly includes a monitoring seat fixedly mounted on the side surface of the feed barrel, and an inner groove connected to the interior of the feed barrel is provided in the monitoring seat, a monitoring block is slidably connected in the inner groove, and a top spring is provided in the inner groove, the top spring pushes the monitoring block downward, and an oblique opening cooperating with the feed auger is provided on the lower side of the monitoring block.

[0021] The monitoring seat has an outer groove connecting the inner groove and the outside, and a tooth plate is slidably connected in the outer groove. The tooth plate is fixedly connected to the monitoring block, and the surface of the guide rod with the second thread has a tooth surface meshing with the tooth plate.

[0022] Preferably, a ring-shaped angle mark is provided on the surface of the feed hopper, and a positioning mark matching the angle mark is fixedly provided on the upper side of the delivery cylinder.

[0023] Preferably, the feeding cylinder is provided with a locking pin which cooperates with the gear ring.

[0024] Preferably, an auxiliary slide seat symmetrical to the second screw hole seat is fixedly provided on the side surface of the rear bucket shell, and the auxiliary slide seat is movably sleeved on the guide rod on the same side.

[0025] Preferably, a protective cover covering the tooth plate and the second thread is fixedly provided on the bottom of the monitoring seat.

[0026] A method for using a feeding device for coating production comprises the following steps:

[0027] S1. Start the feeding motor to drive the feeding auger to rotate, and the raw materials are put into the feeding hopper and pushed to the feeding hopper for unloading through the feeding auger;

[0028] S2, start the translation motor to drive the rotating rod to rotate, so that the first thread drives the first screw hole seat and the lower hopper to move along the feeding cylinder. During this process, the telescopic tubes on both sides follow the telescopic closing of the corresponding openings on the feeding cylinder, so as to adjust the front and rear positions of the lower hopper. At the same time, start the angle adjustment motor to drive the gear ring and the feeding hopper to rotate. During this process, the lower hopper is driven by the rotating rod and the guide rod to rotate synchronously with the feeding hopper;

[0029] S3, when the amount of raw materials transported in the feeding barrel increases, the second thread is rotated by the guide rod, and the second screw hole seat and the rear bucket shell are driven to move backward without the front bucket shell being displaced, so that the telescopic bucket is pulled out of the chute, and the passing diameter of the lower bucket is increased;

[0030] S4. During the process of the feed auger rotating to transport raw materials, the blade surface of the feed auger progressively squeezes the monitoring block along the oblique mouth, causing it to compress the top spring and move upward. When the monitoring block moves up and tops out, it passes over the current blade surface, moves down and falls between the two blade surfaces, and presses down on the top of the raw materials being transported in the feed barrel. That is, the thickness of the raw material pile controls the downward movement of the monitoring block. During this process, the tooth plate is driven by the monitoring block to move downward by the same amount of movement, and pushes the corresponding guide rod to rotate along the tooth surface, so that the second thread pushes the second screw hole seat and the rear bucket shell to move.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] In the present invention, the gear ring and the feed hopper are driven to rotate by starting the angle adjustment motor. During this process, the lower hopper is driven by the rotating rod and the guide rod to rotate synchronously with the feed hopper. Compared with the existing horizontal adjustment of the unloading position, the front sleeve and the rear sleeve are matched with the feed hopper and the lower hopper through the through opening. On the premise of realizing the original horizontal adjustment function, the feed hopper and the lower hopper can also be adjusted in the circumferential direction. On the one hand, horizontal unloading can be carried out, and on the other hand, the directions of the feed hopper and the lower hopper can be controlled to be mutually disposed without moving the entire equipment, and the change of the unloading direction can be realized, thereby improving the flexibility of equipment use.

[0033] In the present invention, the second thread is rotated by the guide rod, and the second screw hole seat and the rear bucket shell are driven to move backward without displacement of the front bucket shell, so that the telescopic bucket is pulled out of the slide groove. At this time, the passing diameter of the discharge bucket is increased. Compared with the existing fixed-diameter discharge port, the front bucket shell and the rear bucket shell can form an adjustable discharge structure, and adapt according to the change of the discharge amount in the feed barrel, so as to avoid blockage caused by the feed auger transporting too much raw material and failing to discharge it immediately.

[0034] In the present invention, the blade surface of the feed auger is progressively squeezed along the oblique mouth to compress the top spring and move upward. When the monitoring block moves up and tops, it passes over the current blade surface, moves down and falls between the two blade surfaces, and presses down on the top of the raw material being conveyed in the feed barrel. That is, the thickness of the raw material pile controls the downward movement of the monitoring block. In this process, the tooth plate is driven by the monitoring block to move downward by the same amount of movement, and pushes the corresponding guide rod to rotate along the tooth surface, so that the second thread pushes the second screw hole seat and the rear bucket shell to move. In this way, the monitoring block continuously monitors the current conveying volume based on the change in the thickness of the conveyed raw material, and drives the second thread to rotate a corresponding amount according to the raw material conveying volume. On the one hand, the caliber adjustment of the rear bucket shell along the front bucket shell can be automatically performed without manual operation, and the use convenience is good. On the other hand, the caliber adjustment amount is correspondingly adaptively controlled by the conveying volume, and the adjustment is more precise, which is convenient for precise control of the delivery thickness of the unloading area. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0036] Figure 2 For the present invention Figure 1 The enlarged view of point A in the middle;

[0037] Figure 3 It is an exploded view of the feeding cylinder and the feeding auger of the present invention;

[0038] Figure 4 For the present invention Figure 3 The enlarged view of point B in the middle;

[0039] Figure 5 For the present invention Figure 3 Enlarged view of point C in the middle;

[0040] Figure 6 It is a schematic diagram of the three-dimensional structure of the feeding cylinder of the present invention;

[0041] Figure 7 It is a cross-sectional view of the feeding tube and the monitoring seat of the present invention;

[0042] Figure 8 It is a schematic diagram of the structure of the feed hopper, the lower hopper, the rotating rod and the guide rod of the present invention;

[0043] Fig. 9 It is an exploded view of the feed hopper, lower hopper, rotating rod and guide rod of the present invention;

[0044] Fig.10 It is an exploded view of the front bucket shell and the rear bucket shell of the present invention.

[0045] In the figure: 1, equipment support; 2, feeding cylinder; 3, feeding auger; 4, feeding motor; 5, feeding hopper; 6, lower hopper; 61, front bucket shell; 62, rear bucket shell; 7, circumferential commutator; 71, front sleeve; 72, rear sleeve; 73, through port; 74, rotating ring; 75, telescopic tube; 76, guide rod; 77, convex seat; 78, rotating rod; 79, translation motor; 710, transmission gear; 711, first thread; 712, gear ring; 713, adjustment Angle motor; 714, angle adjustment gear; 715, first screw hole seat; 716, flow control component; 7161, second thread; 7162, slide groove; 7163, telescopic bucket; 7164, second screw hole seat; 7165, monitoring component; 71651, monitoring seat; 71652, inner groove; 71653, monitoring block; 71654, top spring; 71655, oblique mouth; 71656, outer groove; 71657, tooth plate; 71658, tooth surface. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical staff in this field without creative work are within the scope of protection of the present invention.

[0047] See also Figures 1 to 10 The present invention provides a technical solution: a material feeding device for coating production, comprising an equipment bracket 1, a feeding cylinder 2 is fixedly mounted on the equipment bracket 1, and both ends of the feeding cylinder 2 are closed, a feeding auger 3 is rotatably connected inside the feeding cylinder 2, and the central axis of the feeding auger 3 passes through the rear end of the feeding cylinder 2 and extends to the outside, a feeding motor 4 is fixedly mounted on the equipment bracket 1, and the feeding motor 4 is connected to the feeding auger 3 through a belt and a pulley.

[0048] A feed hopper 5 is provided on the upper side of the rear end of the feed cylinder 2, and a lower hopper 6 is provided on the lower side of the front end of the feed cylinder 2. The feed motor 4 is started to drive the feed auger 3 to rotate, and the raw materials are put into the feed hopper 5 and pushed to the lower hopper 6 through the feed auger 3 for unloading. A circumferential commutator 7 is provided on the feed hopper 5, the lower hopper 6 and the feed cylinder 2.

[0049] The circumferential commutator 7 includes a front sleeve 71 and a rear sleeve 72 opened along the surface of the feed barrel 2, and the front sleeve 71 and the rear sleeve 72 are set as annular structures, the front sleeve 71 is located on the front side of the feed barrel 2, and the rear sleeve 72 is located on the rear side of the feed barrel 2, the lower hopper 6 is movably sleeved on the front sleeve 71, and the feed hopper 5 is rotatably sleeved on the rear sleeve 72.

[0050] The front sleeve opening 71 and the rear sleeve opening 72 are both provided with a through opening 73 which is communicated with the interior of the feeding cylinder 2 .

[0051] A rotating ring 74 is rotatably connected to the side walls of the front sleeve 71, and a telescopic tube 75 with a ring covering the front opening 73 is provided between the rotating ring 74 and the lower hopper 6. When the lower hopper 6 moves along the feed tube 2, the telescopic tubes 75 on both sides follow the telescopic closing of the corresponding opening 73 on the feed tube 2.

[0052] Two guide rods 76 are symmetrically arranged on the lower side of the feeding cylinder 2. The feed hopper 5 and the lower hopper 6 are fixedly provided with a convex seat 77 matching the guide rod 76. One end of the guide rod 76 is rotatably connected to the convex seat 77 of the lower hopper 6, and the other end of the guide rod 76 is movably inserted into the convex seat 77 of the feed hopper 5.

[0053] The side surface of the feed hopper 5 is rotatably connected to a rotating rod 78 , and a translation motor 79 is fixedly installed on the side surface of the feed hopper 5 . The rotating shaft of the translation motor 79 and the rotating rod 78 are fixedly installed with mutually meshing transmission gears 710 .

[0054] A first thread 711 for adjusting the position of the lower hopper 6 is provided on the surface of the rotating rod 78, and a first screw hole seat 715 matching the first thread 711 is fixedly installed on the top of the lower hopper 6. The translation motor 79 is started to drive the rotating rod 78 to rotate, so that the first thread 711 drives the first screw hole seat 715 and the lower hopper 6 to move along the conveying tube 2.

[0055] A gear ring 712 is fixedly connected to the side surface of the feed hopper 5, an angle adjustment motor 713 corresponding to the gear ring 712 is fixedly installed on the feeding barrel 2, and an angle adjustment gear 714 meshing with the gear ring 712 is fixedly installed on the rotating shaft of the angle adjustment motor 713. The angle adjustment motor 713 is started to drive the gear ring 712 and the feed hopper 5 to rotate. During this process, the lower hopper 6 is driven by the rotating rod 78 and the guide rod 76 to rotate synchronously with the feed hopper 5.

[0056] A flow control assembly 716 is provided on the lower hopper 6 and the guide rod 76 .

[0057] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, the flow control assembly 716 includes a second thread 7161 opened along the front side of one of the guide rods 76.

[0058] The lower hopper 6 is composed of a symmetrical front bucket shell 61 and a rear bucket shell 62, and a slide groove 7162 is opened on the inner wall of the front bucket shell 61, a telescopic bucket 7163 is fixedly installed on the side surface of the rear bucket shell 62, and the rear bucket shell 62 is slidably connected along the slide groove 7162 through a retractable bucket.

[0059] A second screw hole seat 7164 matching the second thread 7161 is fixedly installed on the side surface of the rear bucket shell 62. The angle adjustment motor 713 is started to drive the gear ring 712 and the feed hopper 5 to rotate. During this process, the lower hopper 6 is driven by the rotating rod 78 and the guide rod 76 to rotate synchronously with the feed hopper 5.

[0060] A monitoring component 7165 is provided on the feeding cylinder 2 and the guide rod 76 .

[0061] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10As shown, the monitoring assembly 7165 includes a monitoring seat 71651 fixedly mounted on the side surface of the feed barrel 2, and an inner groove 71652 connected to the interior of the feed barrel 2 is provided in the monitoring seat 71651, a monitoring block 71653 is slidably connected in the inner groove 71652, and a top spring 71654 is provided in the inner groove 71652, the top spring 71654 pushes the monitoring block 71653 to move downward, and an oblique opening 71655 matching the feed auger 3 is provided on the lower side of the monitoring block 71653, the blade surface of the feed auger 3 progressively squeezes the monitoring block 71653 along the oblique opening 71655, so that it compresses the top spring 71654 to move upward, and when the monitoring block 71653 moves up and tops, it passes over the current blade surface, moves down and falls between the two blade surfaces, and presses down on the top of the raw material conveyed in the feed barrel 2, that is, the thickness of the raw material pile controls the downward movement of the monitoring block 71653.

[0062] The interior of the monitoring seat 71651 is provided with an outer groove 71656 connecting the inner groove 71652 and the outside, and a tooth plate 71657 is slidably connected in the outer groove 71656. The tooth plate 71657 is fixedly connected to the monitoring block 71653. The surface of the guide rod 76 with the second thread 7161 is provided with a tooth surface 71658 meshing with the tooth plate 71657. During the downward movement of the monitoring block 71653, the tooth plate 71657 is driven by the monitoring block 71653 to move downward by the same amount, and pushes the corresponding guide rod 76 to rotate along the tooth surface 71658, so that the second thread 7161 pushes the second screw hole seat 7164 and the rear bucket shell 62 to move.

[0063] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, a ring-shaped angle mark is provided on the surface of the feed hopper 5, and a positioning mark matching the angle mark is fixedly provided on the upper side of the conveying barrel 2. After the feed hopper 5 is rotated and adjusted, the adjusted angle can be quickly understood by comparing the angle mark with the positioning mark.

[0064] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, a locking pin that cooperates with the gear ring 712 is provided on the feeding barrel 2. After the gear ring 712 drives the feed hopper 5 and the lower hopper 6 to rotate, the locking pin can be used to clamp the gear ring 712, thereby relieving the load of the feed hopper 5 and the lower hopper 6 on the angle adjustment motor 713 in the shutdown state.

[0065] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10As shown, an auxiliary slide symmetrical to the second screw hole seat 7164 is fixedly provided on the side surface of the rear bucket shell 62, and the auxiliary slide is movably sleeved on the guide rod 76 on the same side. When the second thread 7161 on the surface of one guide rod 76 drives the rear bucket shell 62 to move along the second screw hole seat 7164, the auxiliary slide synchronously moves along the other guide rod 76, thereby providing stable support for the rear bucket shell 62 from both sides.

[0066] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, a protective cover covering the tooth plate 71657 and the second thread 7161 is fixedly provided at the bottom of the monitoring seat 71651. The protective cover is used to protect the meshing area of ​​the tooth plate 71657 and the second thread 7161, which can prevent raw material particles and dust from being embedded and affecting operation, thereby ensuring the stability of equipment operation.

[0067] A method for using a feeding device for coating production comprises the following steps:

[0068] S1. Start the feeding motor 4 to drive the feeding auger 3 to rotate, and the raw materials are put into the feeding hopper 5 and pushed to the discharging hopper 6 through the feeding auger 3 for discharging.

[0069] S2. Start the translation motor 79 to drive the rotating rod 78 to rotate, so that the first thread 711 drives the first screw hole seat 715 and the lower hopper 6 to move along the feed barrel 2. During this process, the telescopic tubes 75 on both sides follow the telescopic closing of the corresponding openings 73 on the feed barrel 2, so as to adjust the front and rear positions of the lower hopper 6. At the same time, start the angle adjustment motor 713 to drive the gear ring 712 and the feed hopper 5 to rotate. During this process, the lower hopper 6 is driven by the rotating rod 78 and the guide rod 76 to rotate synchronously with the feed hopper 5.

[0070] S3. When the amount of raw materials transported in the feed barrel 2 increases, the second thread 7161 is rotated by the guide rod 76, and the second screw hole seat 7164 and the rear bucket shell 62 are driven to move backward without displacing the front bucket shell 61, so that the telescopic bucket 7163 is pulled out of the slide groove 7162. At this time, the passing diameter of the lower hopper 6 is increased.

[0071] S4. During the process of the feed auger 3 rotating to transport raw materials, the blade surface of the feed auger 3 progressively squeezes the monitoring block 71653 along the bevel 71655, causing the compression spring 71654 to move upward. When the monitoring block 71653 moves up and tops out, it passes over the current blade surface, moves down and falls between the two blade surfaces, and presses down on the top of the raw material being transported in the feed barrel 2. That is, the thickness of the raw material pile controls the downward movement of the monitoring block 71653. During this process, the tooth plate 71657 is driven by the monitoring block 71653 to move downward by the same amount, and pushes the corresponding guide rod 76 to rotate along the tooth surface 71658, so that the second thread 7161 pushes the second screw hole seat 7164 and the rear bucket shell 62 to move.

[0072] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A material feeding device for coating production, comprising an equipment support (1), characterized in that: A feeding cylinder (2) is fixedly mounted on the equipment bracket (1), and both ends of the feeding cylinder (2) are closed; a feeding auger (3) is rotatably connected inside the feeding cylinder (2), and a central axis of the feeding auger (3) passes through the rear end of the feeding cylinder (2) and extends to the outside; a feeding motor (4) is fixedly mounted on the equipment bracket (1), and the feeding motor (4) is connected to the feeding auger (3) through a belt and a pulley; A feed hopper (5) is provided on the upper side of the rear end of the feed cylinder (2), and a lower hopper (6) is provided on the lower side of the front end of the feed cylinder (2); a circumferential commutator (7) is provided on the feed hopper (5), the lower hopper (6) and the feed cylinder (2); The circumferential commutator (7) comprises a front sleeve (71) and a rear sleeve (72) opened along the surface of the feed barrel (2), and the front sleeve (71) and the rear sleeve (72) are set as annular structures, the front sleeve (71) is located at the front side of the feed barrel (2), and the rear sleeve (72) is located at the rear side of the feed barrel (2), the lower hopper (6) is movably sleeved on the front sleeve (71), and the feed hopper (5) is rotatably sleeved on the rear sleeve (72); The front sleeve (71) and the rear sleeve (72) are both provided with openings (73) communicating with the interior of the feeding barrel (2); The side walls on both sides of the front sleeve opening (71) are rotatably connected to a rotating ring (74), and a telescopic tube (75) for annularly covering the front opening (73) is provided between the rotating ring (74) and the lower hopper (6); Two guide rods (76) are symmetrically arranged on the lower side of the feeding cylinder (2); convex seats (77) matching with the guide rods (76) are fixedly arranged on the feeding hopper (5) and the lower hopper (6); one end of the guide rod (76) is rotatably connected to the convex seat (77) of the lower hopper (6), and the other end of the guide rod (76) is movably inserted into the convex seat (77) of the feeding hopper (5); The side surface of the feed hopper (5) is rotatably connected to a rotating rod (78), and a translation motor (79) is fixedly mounted on the side surface of the feed hopper (5), and mutually meshing transmission gears (710) are fixedly mounted on the rotating shaft of the translation motor (79) and the rotating rod (78); A first thread (711) for adjusting the position of the lower hopper (6) is formed on the surface of the rotating rod (78), and a first screw hole seat (715) matching the first thread (711) is fixedly mounted on the top of the lower hopper (6); A gear ring (712) is fixedly connected to the side surface of the feed hopper (5), an angle adjustment motor (713) corresponding to the gear ring (712) is fixedly mounted on the feed cylinder (2), and an angle adjustment gear (714) meshing with the gear ring (712) is fixedly mounted on the rotating shaft of the angle adjustment motor (713); The lower hopper (6) and the guide rod (76) are provided with a flow control component (716); The flow control assembly (716) comprises a second thread (7161) formed along the front side of one of the guide rods (76); The lower hopper (6) is composed of a symmetrical front hopper shell (61) and a rear hopper shell (62), and a slide groove (7162) is provided on the inner wall of the front hopper shell (61), a telescopic hopper (7163) is fixedly mounted on the side surface of the rear hopper shell (62), and the rear hopper shell (62) is slidably connected along the slide groove (7162) via a retractable hopper; A second screw hole seat (7164) matching with the second thread (7161) is fixedly mounted on the side surface of the rear bucket shell (62); A monitoring component (7165) is provided on the conveying cylinder (2) and the guide rod (76).

2. A coating production feeding device according to claim 1, characterized in that: The monitoring assembly (7165) comprises a monitoring seat (71651) fixedly mounted on the side surface of the feeding barrel (2), and an inner groove (71652) communicating with the inside of the feeding barrel (2) is provided in the monitoring seat (71651), a monitoring block (71653) is slidably connected in the inner groove (71652), and a top spring (71654) is provided in the inner groove (71652), the top spring (71654) pushes the monitoring block (71653) to move downward, and an oblique opening (71655) cooperating with the feeding auger (3) is provided on the lower side of the monitoring block (71653); The monitoring seat (71651) is provided with an outer groove (71656) connecting the inner groove (71652) and the outside, and a tooth plate (71657) is slidably connected in the outer groove (71656). The tooth plate (71657) is fixedly connected to the monitoring block (71653), and a tooth surface (71658) meshing with the tooth plate (71657) is provided on the surface of the guide rod (76) with the second thread (7161).

3. A coating production feeding device according to claim 2, characterized in that: The surface of the feed hopper (5) is provided with an annular angle mark, and the upper side of the delivery cylinder (2) is fixedly provided with a positioning mark that matches the angle mark.

4. A coating production feeding device according to claim 3, characterized in that: The feeding cylinder (2) is provided with a locking pin which matches the gear ring (712).

5. A coating material feeding device according to claim 4, characterized in that: An auxiliary sliding seat symmetrical to the second screw hole seat (7164) is fixedly provided on the side surface of the rear bucket shell (62), and the auxiliary sliding seat is movably sleeved on the guide rod (76) on the same side.

6. A coating material feeding device according to claim 5, characterized in that: A protective cover covering the tooth plate (71657) and the second thread (7161) is fixedly arranged at the bottom of the monitoring seat (71651).

7. A method for using a coating production feeding device, using the coating production feeding device according to claim 6, characterized in that: The steps include: S1, starting the feeding motor (4) to drive the feeding auger (3) to rotate, the raw materials are put into the feeding hopper (5), and pushed to the discharge hopper (6) through the feeding auger (3) for discharge; S2, start the translation motor (79) to drive the rotating rod (78) to rotate, so that the first thread (711) drives the first screw hole seat (715) and the lower hopper (6) to move along the feeding barrel (2). During this process, the telescopic tubes (75) on both sides follow the corresponding openings (73) on the telescopic closed feeding barrel (2), so as to adjust the front and rear positions of the lower hopper (6). At the same time, start the angle adjustment motor (713) to drive the gear ring (712) and the feeding hopper (5) to rotate. During this process, the lower hopper (6) is driven by the rotating rod (78) and the guide rod (76) to follow the feeding hopper (5) to rotate synchronously; S3. When the amount of raw materials transported in the feeding barrel (2) increases, the second thread (7161) is rotated by the guide rod (76), and the second screw hole seat (7164) and the rear bucket shell (62) are driven to move backward without the front bucket shell (61) being displaced, so that the telescopic bucket (7163) is pulled out of the slide groove (7162). At this time, the passing diameter of the lower hopper (6) increases; S4. During the process of the feed auger (3) rotating to transport the raw materials, the blade surface of the feed auger (3) progressively squeezes the monitoring block (71653) along the oblique mouth (71655), causing the monitoring block (71653) to compress the top spring (71654) and move upward. When the monitoring block (71653) moves upward and tops, it passes over the current blade surface and moves downward between the two blade surfaces, and presses down on the top of the raw materials being transported in the feed barrel (2). That is, the thickness of the raw materials piled up controls the downward movement of the monitoring block (71653). During this process, the tooth plate (71657) is driven by the monitoring block (71653) to move downward by the same amount of movement, and pushes the corresponding guide rod (76) to rotate along the tooth surface (71658), so that the second thread (7161) pushes the second screw hole seat (7164) and the rear bucket shell (62) to move.

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