Raw material lifting and conveying device for coating production

Abstract

The invention relates to the technical field of elevators, in particular to a raw material lifting and conveying device for coating production, which comprises a vertically arranged outer shell, a closed-loop conveying assembly is arranged in a lifting and conveying cavity, and a plurality of bucket assemblies are connected to the closed-loop conveying assembly at equal intervals. The excavator bucket assembly comprises a bucket body connected with the closed-loop type conveying assembly, a movable sealing plate is inserted into an opening of the bucket body, the end, close to the closed-loop type conveying assembly, of the movable sealing plate is connected with a guide wheel, the other end of the movable sealing plate extends upwards to form a material pushing plate, a guide seat plate is fixed in the outer shell, and side plates extend towards the periphery of the guide seat plate. The side plates are provided with guiding closed-loop grooves acting with the guiding wheels. The raw material lifting and conveying device for paint production has a good accurate metering effect, the material adding amount can be accurately obtained without arranging an additional metering and weighing hopper at the top of material mixing equipment, and the accurate matching of materials in the paint mixing production process is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of elevators, and in particular discloses a raw material lifting and conveying device for coating production. Background Art

[0002] In the production and preparation process of many coatings (such as putty powder, self-leveling coating, etc.), the raw materials need to be transported to the top of the mixing tank in proportion and put into it, and then mixed and stirred. At present, some companies with large production capacity have a large volume of the entire mixing equipment. The traditional auger conveyor cannot effectively lift the materials quantitatively and deliver them to the mixing tank, so bucket elevators are more often used for transportation and lifting. However, although the bucket elevator can effectively lift and transport the materials, the transported materials still cannot be accurately measured. It is necessary to set a weighing silo on the top of the mixing tank to weigh and measure them, which further increases the volume of the entire mixing equipment and increases the equipment cost.

[0003] The utility model patent with application number 202420369477.6 discloses a bucket elevator for putty powder production, including an outer shell, a feed hopper fixedly connected to the side wall of the outer shell, a collection box fixedly connected to the side wall of the outer shell away from the feed hopper, a blower installed on the surface of the collection box, a connecting pipe plugged into the surface of the collection box close to the blower, a pipe 1 plugged into the air inlet on the side wall of the connecting pipe, the other end of the pipe 1 plugged into the inside of the connecting pipe, and a pipe 2 plugged into the air outlet at the top of the blower, the other end of the pipe 2 plugged into the side wall of the feed hopper. Although the bucket elevator disclosed in the patent can realize the lifting and conveying of putty powder raw materials, it is impossible to accurately measure the putty powder raw materials lifted and conveyed. Even if the card plate in the elevator is changed to a hopper, since powder raw materials such as putty powder usually accumulate when being dug up, it is impossible to ensure that the volume of the powder raw materials dug up in the hopper is equal to its own volume, so it is impossible to accurately measure it. In addition, when the hopper is turned over at the top, the centrifugal force of the material on the side of the hopper close to the conveyor belt is small, resulting in the inability to effectively pour out all the powdered raw materials inside, which further affects the final material measurement accuracy. Once the total amount of raw materials put into the mixing tank changes, the coating ratio will be inaccurate, which in turn affects the performance and quality of the coating prepared by the final mixing. Therefore, in view of the shortcomings of bucket elevators in the process of precise lifting in the coating production process, the present invention proposes a raw material lifting and conveying device for coating production that can effectively solve the above technical problems. Summary of the invention

[0004] The present invention aims to provide a raw material lifting and conveying device used in the coating production and preparation process, so as to achieve accurate metering of the raw materials during the lifting and conveying process, ensure that the various component materials put into the mixing equipment can be accurately proportioned, and ensure the performance and quality of the coating finally prepared by mixing.

[0005] The present invention is achieved through the following technical solutions: A raw material lifting and conveying device for coating production, comprising an outer shell arranged vertically, a lifting and conveying cavity arranged inside the outer shell, a feeding hopper connected to the lower end of the lifting and conveying cavity arranged at the lower end of the left side surface of the outer shell, a discharge channel arranged at the upper end of the right side surface of the outer shell, a closed-loop conveying assembly arranged inside the lifting and conveying cavity, a plurality of bucket assemblies connected to the closed-loop conveying assembly at equal intervals, the bucket assembly comprising a bucket body connected to the closed-loop conveying assembly, a movable sealing plate inserted in the opening of the bucket body, and a guide wheel connected to one end of the movable sealing plate close to the closed-loop conveying assembly, and a push plate extending upward from the other end; A guide seat plate is fixed in the outer shell located inside the closed-loop conveying assembly, and side plates extend all around the guide seat plate. A guide closed-loop groove interacting with the guide wheel is provided on the side plate, and the guide closed-loop groove is composed of a long waist-shaped section, an outward convex straight section and two oblique connecting sections, and the outward convex straight section is arranged on one side above the feeding hopper; A photoelectric counting sensor for counting the number of buckets passing through is arranged on the right side of the upper end of the front side surface of the outer shell, and the photoelectric counting sensor is electrically connected to the control system.

[0006] The raw material lifting and conveying device for coating production disclosed in the present invention drives all bucket components to move cyclically in the lifting and conveying chamber by a closed-loop conveying component during operation. When the bucket body moves from top to bottom to the bottom of the lifting and conveying chamber, it starts to contact the accumulated materials, and in the process of the bucket body turning over from the lowest end of the lifting and conveying chamber, the accumulated materials are dug up and then conveyed from bottom to top.

[0007] When the bucket is transporting materials upward, the guide wheel at the inner end will move from the long waist-shaped section of the guide closed-loop groove to the oblique connecting section, and when the guide wheel and the oblique connecting section interact, the movable sealing plate in the bucket opening can be pushed outward. When the movable sealing plate moves outward, the piled materials in the bucket can be flattened by the push plate, and the excess materials can be pushed out of the bucket, so that the volume of the materials in the bucket is equal to its actual volume. Then, when the guide wheel passes the convex straight section and enters the upper oblique connecting section, it will pull the movable sealing plate inward, so that the upper opening of the bucket is completely opened.

[0008] As the material inside the bucket continues to rise after being flattened, the bucket begins to flip when it moves to the top of the lifting and conveying chamber. During the flipping process, the material is thrown into the entrance of the discharge channel under the action of centrifugal force and the material's own gravity, and finally directly introduced into the mixing equipment through the discharge channel.

[0009] In addition, when the bucket body is flipped at the upper end of the lifting and conveying chamber, it will also be counted by the photoelectric counting sensor. When the number of bucket body flips obtained by counting × the volume of the bucket body = the volume of the material required to be added, the operation of the closed-loop conveying component will be stopped immediately, so that the entire lifting and conveying device can accurately measure the paint raw materials during the process of lifting and conveying them. There is no need to add an additional weighing device on the top of the mixing equipment to weigh it, so as to ensure accurate control of the actual paint mixing ratio.

[0010] As a further arrangement of the above scheme, the lower end of the connection between the discharge channel and the outer shell is rotatably connected to a material guide plate extending into the lifting and conveying chamber, an elastic support component is arranged between the lower end of the material guide plate and the outer shell, and under the action of the elastic support component, the material guide plate is inclined upward and extends into the lifting and conveying chamber.

[0011] As a further configuration of the above scheme, a vertical groove is opened on the inner wall of the outer shell below the material guide plate, and the elastic support assembly includes a lifting seat slidably arranged in the vertical groove, a rotating rod is connected between the lifting seat and the material guide plate, a convex plate is fixed to the lower end of the vertical groove, a vertical sliding rod passing through the lifting seat is arranged on the convex plate, and a spring is arranged between the convex plate and the lifting seat.

[0012] The present invention further adopts the above-mentioned structural design, so that when the bucket body is turned over and discharged at the upper end of the lifting conveying cavity, the material on the side of the bucket body close to the closed-loop conveying assembly is difficult to be directly thrown into the discharge channel due to insufficient centrifugal force. At this time, the guide plate can receive this part of the material and then directly guide it into the discharge channel, so as to avoid this part of the material directly falling back to the bottom of the lifting conveying cavity and causing the problem of small actual feeding amount. In addition, when the bucket body discharges and transports downward, the bucket body will directly act on the guide plate to press and rotate it downward, ensuring that the bucket body can smoothly pass the position of the guide plate without any obstruction, and after the bucket body passes the guide plate, it can quickly return to the inclined upward state under the action of the spring to meet the material discharged from the next bucket body, so as to ensure the continuity of the entire material receiving process.

[0013] As a further arrangement of the above scheme, a rectangular opening is provided on one end face of the bucket body close to the closed-loop conveying assembly, and the end of the rectangular opening close to the movable sealing plate is rotatably connected to the sealing plate through a rotating rod, and the movable end of the sealing plate is in contact with the arc-shaped bottom wall of the bucket body, a torsion spring is connected between one end of the rotating rod and the bucket body, and a gear is provided at the other end of the rotating rod, and an arc-shaped rack aligned with the photoelectric counting sensor is fixed on the inner wall of the lifting and conveying chamber, and the arc-shaped rack is meshed with the gear that has flipped over.

[0014] The present invention further improves the structure of the above-mentioned bucket assembly, and when the bucket body is digging and loading materials normally, the torsion spring will cause the sealing plate to fit the rectangular opening to seal it. When the bucket body begins to flip and discharge materials at the top of the lifting conveying cavity, the meshing transmission between the gear and the arc-shaped rack will cause the rotating rod to rotate, and the sealing plate will rotate toward the inside of the bucket body under the action of the rotating rod. At this time, the opening of the bucket body faces downward, and the rotation of the sealing plate can push the material out of the bucket body, increase its horizontal speed of throwing down, and make it easy to enter the entrance of the discharge channel. On the other hand, the inner wall of the bucket body can be scraped by the sealing plate to ensure that all the materials adhering to the inner wall of the bucket body are discharged, so that all the materials in the bucket body can be discharged.

[0015] As a further configuration of the above scheme, the upper and lower ends of the lifting and conveying cavity are semicircular, and the middle is rectangular.

[0016] As a further configuration of the above scheme, the closed-loop conveying assembly includes a rotating shaft concentrically arranged in a semicircular chamber at the upper and lower ends of the lifting and conveying chamber, and one end of the rotating shaft is connected to a driving device, and each of the rotating shafts is provided with a transmission wheel at both ends, and a closed-loop conveying member is provided between the upper and lower transmission wheels.

[0017] As a further configuration of the above scheme, the transmission wheel is one of a belt pulley or a sprocket, and the closed-loop conveying member is one of a transmission belt or a transmission chain.

[0018] As a further configuration of the above scheme, the bucket assembly also includes a connecting frame fixedly connected to the front and rear side surfaces of the bucket body, and the ends of the two connecting frames are respectively connected to the corresponding closed-loop conveying members. A limiting slide groove that acts on the movable sealing plate is opened in the upper end opening of the bucket body, and a strip opening for extending the movable sealing plate is opened on the side of the bucket body close to the closed-loop conveying member.

[0019] As a further arrangement of the above scheme, a boss is fixed to one end of the movable sealing plate extending out of the strip-shaped opening, a rotating shaft is arranged on the boss, guide wheels are arranged at both ends of the rotating shaft, side plates are arranged at the front and rear ends of the guide seat plate, and guide closed-loop grooves that act on the corresponding guide wheels are opened on the opposite sides of the two side plates.

[0020] Compared with the prior art, the present invention has the following beneficial effects: The raw material lifting and conveying device for paint production disclosed in the present invention is an improved design based on the existing bucket elevator. The bottom material is first scooped out by the bucket body, and then in the process of conveying it upward, the action between the guide wheel and the guide closed-loop groove is utilized to make the movable sealing plate in the bucket body opening move in the corresponding direction, so as to flatten the accumulated materials scooped out by the bucket body, and push down the excess materials, so that the volume of the materials contained in the bucket body is equal to the actual volume of the bucket body, and then the actual lifting and adding amount of the materials is quickly calculated according to the number of materials moving through the bucket body by the photoelectric counting sensor, so that the whole raw material lifting and conveying device has a better precise metering effect, and the material addition amount can be accurately obtained without setting an additional metering weighing bucket on the top of the mixing equipment, thereby ensuring the precise proportion of materials in the paint mixing production process.

[0021] The present invention further connects a guide plate which is tilted upward at the lower end of the entrance of the discharge channel through an elastic support assembly, and allows the guide plate to extend into the inner end of the lifting and conveying cavity. The guide plate can receive materials that have not been centrifugally thrown into the discharge channel, and then guide them into the discharge channel by the guide plate, thereby ensuring that all materials discharged from the bucket body can be discharged into the mixing equipment through the discharge channel, avoiding the problem of this part of the material directly falling back to the bottom of the lifting and conveying cavity, resulting in a small actual feed amount, and further improving the accuracy of the actual feed amount of the entire device.

[0022] The present invention further improves the design of the bucket body structure, so that when the bucket body is loaded with materials and flipped down from the top, the meshing transmission between the gear and the arc-shaped rack can allow the sealing plate to rotate toward the inside of the bucket body. The sealing plate can, on the one hand, push the material out of the bucket body to increase its horizontal speed of throwing down, making it easy for it to enter the entrance of the discharge channel; on the other hand, the sealing plate can scrape the inner wall of the bucket body to ensure that all the materials adhered to the inner wall of the bucket are discharged, so that the bucket body discharge volume is equal to its actual volume, further improving the accuracy of the material dosage of the entire lifting and conveying device during the paint conveying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the external three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the internal three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the closed-loop conveying member, the bucket assembly, etc. in the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the bucket assembly in the present invention; Figure 5 It is a schematic diagram of the three-dimensional cross-sectional structure of the guide seat plate in the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure inside the outer shell of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure at A in the middle; Figure 8 It is a schematic diagram of the three-dimensional structure of the bucket assembly in Example 3 of the present invention; Fig. 9 It is a schematic diagram of the planar structure of the bucket assembly during the flipping and discharging process in Example 3 of the present invention. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Figures 1 to 9 , and describes the application in detail with reference to embodiments. Example 1

[0027] Embodiment 1 discloses a raw material lifting and conveying device for coating production, Figure 1 and attached Figure 2 , comprising a base 1, an outer shell 2, a feeding hopper 3 and a discharging channel 4. The outer shell 2 is vertically fixedly arranged on the upper surface of the base 1, and a lifting and conveying cavity 201 is provided inside the outer shell 2, and the upper and lower ends of the lifting and conveying cavity 201 are semicircular, and the middle is rectangular. The feeding hopper 3 is arranged at the lower end of the left side of the outer shell 2, and is connected to the lower end of the lifting and conveying cavity 201, and the discharging channel 4 is arranged at the upper end of the right side of the outer shell 2 and is connected thereto.

[0028] Reference Figure 2 and attached Figure 3, a rotating shaft concentric with the semicircular chamber is provided at both the upper and lower ends of the lifting and conveying chamber 201, and the end of one of the rotating shafts is connected to a driving device 6 provided on the outer shell 2. A transmission wheel 5 is provided at both the front and rear ends of each rotating shaft, and then a closed-loop conveying member 7 is provided between the upper and lower transmission wheels 5, so that the two closed-loop conveying members 7 are arranged in parallel front and back. The specific transmission wheel 5 can be selected from a pulley or a sprocket, and the closed-loop conveying member 7 can be selected from a transmission belt or a transmission chain accordingly. A plurality of bucket assemblies 8 are connected at equal intervals between the outer sides of the two closed-loop conveying members 7, so that the plurality of bucket assemblies 8 can circulate and move along the inside of the lifting and conveying chamber 201 under the action of the closed-loop conveying member 7.

[0029] Reference Figure 3 and attached Figure 5 The bucket assembly 8 includes a bucket body 801 with an upper opening, and a connecting frame 802 is fixedly arranged on both the front and rear side surfaces of the bucket body 801, and the ends of the connecting frame 802 are connected to the corresponding closed-loop conveying member 7. The front and rear side walls of the upper opening of the bucket body 801 are provided with a limited slide groove 803, and a movable sealing plate 804 is slidably arranged in the limited slide groove 803. The movable sealing plate 804 has a push plate 805 extending upward from one end close to the outer wall of the lifting conveying chamber 201, and the other end is extended out of the strip opening 806 on the bucket body 801, and a convex seat 807 is fixed at one end extending out of the strip opening 806, and a rotating shaft 808 is arranged through the convex seat 807, and then guide wheels 809 are arranged at both ends of the rotating shaft 808.

[0030] Reference Figure 2 and attached Figure 4 The closed-loop conveying member 7 is provided with a guide seat plate 9 fixedly connected to the lifting conveying cavity 201. Through holes for passing the rotating shaft are provided at both upper and lower ends of the guide seat plate 9. Side plates 901 are extended to all sides at both front and rear ends of the guide seat plate 9. A guide closed-loop groove 900 for interacting with the guide wheels 809 in all bucket assemblies 8 is provided on opposite sides of the two side plates 901. The guide closed-loop groove 900 is composed of a long waist-shaped section 902, an outwardly convex straight section 903 and two oblique connecting sections 904, and the outwardly convex straight section 903 is provided in a side area above the feeding hopper 3. When the guide wheel 809 interacts with the long waist-shaped section 902, the movable sealing plate 804 moves inward along the limiting slide groove 803 to the innermost end, thereby completely opening the upper end opening of the bucket body 801; when the guide wheel 809 interacts with the outwardly convex straight section 903, the movable sealing plate 804 moves outward along the limiting slide groove 803 to the outermost end, thereby sealing the upper end opening of the bucket body 801, and flattening and pushing down the material accumulated above the opening of the bucket body 801 through the pushing plate 805.

[0031] Finally, a photoelectric counting sensor 10 is arranged on the right side of the upper end of the front side of the outer shell 2. The photoelectric counting sensor 10 passes through the outer shell 2 and extends into the lifting and conveying chamber 201. It is arranged opposite to the path of the circular movement of the bucket assembly 8, and the photoelectric counting sensor 10 is electrically connected to the control system of the entire raw material lifting and conveying device (not shown in the figure). The photoelectric counting sensor 10 can accurately count the number of times the bucket assembly 8 flips and unloads, thereby obtaining the actual amount of paint added.

[0032] During the operation of the material lifting and conveying device disclosed in this embodiment 1, all the bucket assemblies 8 are driven by the closed-loop conveying member 7 to convey and move in the lifting and conveying chamber 201. When the bucket assembly 8 moves to the bottom of the lifting and conveying chamber 201 and turns clockwise, the bucket body 801 is in a completely open state, so that the material accumulated at the bottom of the lifting and conveying chamber 201 can be dug up and then conveyed upward.

[0033] When the bucket assembly 8 filled with materials moves to the position of the oblique connecting section 904 below, the action between the guide wheel 809 and the oblique connecting section 904 will gradually push the movable sealing plate 804 toward the left side wall of the outer shell 2, and during the movement of the movable sealing plate 804, the excavated materials will be flattened by the pushing plate 805, and the excess materials will eventually be pushed down from the upper end opening of the bucket body 801 by the pushing plate 805, so that the materials contained in the bucket body 801 are equal to its internal volume.

[0034] Then, the fully loaded bucket 801 continues to move upward and can be gradually opened again by the action between the guide wheel 809 and the upper oblique connecting section 904. Finally, when the bucket 801 moves to the upper end of the lifting and conveying chamber 201 and starts to flip, the material is thrown to the inlet of the discharge channel 4 by centrifugal force during the flipping process, and the material is transported to the mixing tank by the discharge channel 4.

[0035] When the bucket assembly 8 repeats the above-mentioned digging and discharging actions, the photoelectric counting sensor 10 detects the total number of materials passing through the bucket assembly 8, thereby quickly calculating the total volume of materials put in. Example 2

[0036] Example 2 discloses a raw material lifting and conveying device that is further optimized and improved based on the technical solution in Example 1. The similarities between it and Example 1 will not be described again.

[0037] Reference Figure 6 and attached Figure 7A guide plate 11 is rotatably connected at the lower end of the connection between the discharge channel 4 and the outer shell 2, which is inclined upward and extends into the lifting and conveying cavity 201. A vertical groove 202 is provided on the inner wall of the outer shell 2 below the guide plate 11, and a lifting seat 12 is slidably provided in the vertical groove 202. A rotating rod 13 is connected between the lifting seat 12 and the lower surface of the guide plate 11. A convex plate 14 is fixedly provided in the vertical groove 202 below the lifting seat 12, and a vertical slide bar 15 is provided on the convex plate 14 and penetrates the lifting seat 12. A spring 16 is sleeved on the outer periphery of the vertical slide bar 15, and finally the upper and lower ends of the spring 16 are respectively connected to the convex plate 14 and the lifting seat 12.

[0038] In the present embodiment 2, through the above structural design, when the bucket body 801 is flipped and thrown at the upper end of the lifting conveying chamber 201, some materials cannot be directly thrown into the discharge channel 4 due to insufficient centrifugal force. At this time, due to the existence of the guide plate 11, these materials can be received and introduced into the discharge channel 4. Then, when the bucket body 801 moves downward and contacts the guide plate 11, the guide plate 11 will rotate downward under the pressure of the bucket body 801 to overcome the action of the spring 16 until the bucket body 801 is separated from the guide plate 11, ensuring the smooth passage of the bucket body 801. Subsequently, the separated guide plate 11 can quickly return to the inclined state under the action of the spring 16 to receive the materials scattered from the next bucket body 801, ensuring that all the materials discharged from the bucket body 801 can enter the discharge channel 4, and then be discharged into the mixing device through the discharge channel 4. Example 3

[0039] Example 3 discloses a material lifting and conveying device that is further optimized and improved based on the technical solution in Example 1 or Example 2. The similarities between it and Example 1 and Example 2 will not be described again.

[0040] Reference Figure 8 and attached Fig. 9 In this embodiment 3, the structure of the bucket assembly 8 is improved and designed, and a rectangular opening 810 is opened on one end face of the bucket body 801 close to the closed-loop conveying member 7. A sealing plate 811 that can seal the rectangular opening 810 is rotatably connected to the end of the rectangular opening 810 close to the movable sealing plate 804 through a rotating rod 814, and the movable end of the sealing plate 811 can fit with the arc-shaped bottom wall of the bucket body 801.

[0041] A torsion spring 812 is connected between one end of the rotating rod 814 and the outer side of the bucket body 801, and then a gear 813 extending out of the connecting frame 802 is connected to the other end of the rotating rod 814. Finally, an arc-shaped rack 17 is fixedly arranged on the wall of the lifting and conveying chamber 201 aligned with the photoelectric counting sensor 10, and the arc-shaped rack 17 coincides with the moving path of the gear 813 in the bucket assembly 8, so that when the bucket assembly 8 turns over and discharges materials at the upper end of the lifting and conveying chamber 201, the gear 813 is synchronously meshed with the arc-shaped rack 17, and then the sealing plate 811 is rotated toward the inside of the bucket body 801 through the action between the gear 813 and the arc-shaped rack 17, so that the discharge of the internal material is accelerated under the push of the sealing plate 811, and at the same time, the sealing plate 811 can scrape off the material attached to the inner wall of the bucket body 801 to ensure that the material inside the bucket body 801 is discharged cleanly.

[0042] When the bucket assembly 8 rotates past the position of the arc-shaped rack 17, the sealing plate 811 can be quickly rotated and reset to the rectangular opening 810 under the action of the torsion spring 812 to seal it, waiting for subsequent digging and filling of materials.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A raw material lifting and conveying device for coating production, comprising a vertically arranged outer shell, a lifting and conveying cavity is arranged inside the outer shell, a feeding hopper connected to the lower end of the lifting and conveying cavity is arranged at the lower end of the left side of the outer shell, a discharge channel is arranged at the upper end of the right side of the outer shell, and a closed-loop conveying component is arranged inside the lifting and conveying cavity, characterized in that: The closed-loop conveying assembly is connected to a plurality of bucket assemblies at equal intervals, and the bucket assembly includes a bucket body connected to the closed-loop conveying assembly, a movable sealing plate is inserted in the opening of the bucket body, and one end of the movable sealing plate close to the closed-loop conveying assembly is connected to a guide wheel, and the other end is extended upwardly with a push plate; A guide seat plate is fixed in the outer shell located inside the closed-loop conveying assembly, and side plates extend all around the guide seat plate. A guide closed-loop groove interacting with the guide wheel is provided on the side plate, and the guide closed-loop groove is composed of a long waist-shaped section, an outward convex straight section and two oblique connecting sections, and the outward convex straight section is arranged on one side above the feeding hopper; A photoelectric counting sensor for counting the number of buckets passing through is arranged on the right side of the upper end of the front side surface of the outer shell, and the photoelectric counting sensor is electrically connected to the control system.

2. The raw material lifting and conveying device for coating production according to claim 1, characterized in that: The lower end of the connection between the discharge channel and the outer shell is rotatably connected to a material guide plate extending into the lifting and conveying cavity. An elastic support component is arranged between the lower end of the material guide plate and the outer shell, and under the action of the elastic support component, the material guide plate extends upward into the lifting and conveying cavity at an angle.

3. The raw material lifting and conveying device for coating production according to claim 2, characterized in that: A vertical groove is provided on the inner wall of the shell body below the material guide plate, and the elastic support assembly includes a lifting seat slidably arranged in the vertical groove, a rotating rod is connected between the lifting seat and the material guide plate, a convex plate is fixed to the lower end of the vertical groove, a vertical sliding rod penetrating the lifting seat is provided on the convex plate, and a spring is provided between the convex plate and the lifting seat.

4. The raw material lifting and conveying device for coating production according to claim 1, characterized in that: A rectangular opening is provided on one end face of the bucket body close to the closed-loop conveying component, and the end of the rectangular opening close to the movable sealing plate is rotatably connected to the sealing plate through a rotating rod, and the movable end of the sealing plate is in contact with the arc-shaped bottom wall of the bucket body, a torsion spring is connected between one end of the rotating rod and the bucket body, and a gear is provided at the other end of the rotating rod, and an arc-shaped rack aligned with the photoelectric counting sensor is fixed on the inner wall of the lifting and conveying cavity, and the arc-shaped rack is meshed with the gear that has flipped over.

5. The raw material lifting and conveying device for coating production according to claim 1, characterized in that: The upper and lower ends of the lifting and conveying cavity are semicircular, and the middle is rectangular.

6. The raw material lifting and conveying device for coating production according to claim 5, characterized in that: The closed-loop conveying assembly includes a rotating shaft concentrically arranged in a semicircular chamber at the upper and lower ends of the lifting and conveying chamber, and the end of one of the rotating shafts is connected to a driving device, and each of the rotating shafts is provided with a transmission wheel at the front and rear ends, and a closed-loop conveying member is provided between the upper and lower transmission wheels.

7. The raw material lifting and conveying device for coating production according to claim 6, characterized in that: The transmission wheel is one of a belt pulley and a sprocket, and the closed-loop conveying member is one of a transmission belt and a transmission chain.

8. The raw material lifting and conveying device for coating production according to claim 7, characterized in that: The bucket assembly also includes a connecting frame fixedly connected to the front and rear side surfaces of the bucket body, and the ends of the two connecting frames are respectively connected to the corresponding closed-loop conveying members. A limiting slide groove that acts on a movable sealing plate is provided in the upper end opening of the bucket body, and a strip opening for extending the movable sealing plate is provided on the side of the bucket body close to the closed-loop conveying member.

9. The raw material lifting and conveying device for coating production according to claim 8, characterized in that: A convex seat is fixed to one end of the movable sealing plate extending out of the strip-shaped opening, a rotating shaft is arranged on the convex seat, guide wheels are arranged at both ends of the rotating shaft, side plates are arranged at the front and rear ends of the guide seat plate, and guide closed-loop grooves that act with corresponding guide wheels are opened on the opposite sides of the two side plates.

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