A raw material feeding device for preparing composite antioxidant

Abstract

The present invention relates to the field of preparation of composite antioxidants, and specifically to a raw material feeding device for preparing composite antioxidants, comprising a base, a mixing tank is installed on the upper end of the base, a feeding unit is arranged on the upper end of the mixing tank, and a conveying unit is arranged on the right side of the mixing tank. The present invention can transport a number of bagged raw materials at one time through the cooperation of the conveying unit and the feeding unit, and place the bagged raw materials in a designated feeding position in a uniform arrangement along the semicircular direction, and at the same time, the clamping component, the control component and the breaking component can be used to synchronously and forcefully clamp and fix the bagged raw materials, and the bagged raw materials are uniformly adjusted to an inclined state and uniformly cut, so that the bagged raw materials can be quickly put into the mixing tank in the same stable inclined state, reducing the time spent on feeding a single bag, increasing the feeding amount per unit time, and thus improving the feeding efficiency.

Description

Technical Field

[0001] The invention relates to the field of preparation of composite antioxidants, in particular to a raw material feeding device for preparing composite antioxidants. Background Art

[0002] Composite antioxidants are composed of two or more different types of antioxidants, and are usually used to improve the antioxidant properties of plastics, rubbers, coatings, etc. to extend their service life. Composite antioxidants are prepared by mixing antioxidants with different functional characteristics in a certain proportion to achieve the best antioxidant effect. Antioxidant raw materials are mostly powdered and granular, which are easy to weigh and mix. Before mixing the antioxidant raw materials, the materials packaged in woven bags need to be transported to the designated area, then disassembled and put into the designated mixing tank for subsequent stirring and mixing.

[0003] However, the following problems still exist in the process of adding antioxidant raw materials to the mixing tank: (1) Although manual handling is eliminated when using a conveyor belt to transport bagged raw materials one by one, it is necessary to wait for the previous bagged raw materials to be transported to the designated location and broken open to complete the raw material placement before the next bagged raw materials can be transported to the same designated location. The overall placement time is relatively long and the efficiency needs to be improved. If multiple conveyor belts are set up, it will not only increase the space occupied by the equipment, but also increase the overall equipment cost.

[0004] (2) Regardless of whether the bagged raw materials are opened manually or mechanically, after the packaging bag is opened, the raw materials are mostly discharged into the processing equipment in large quantities, and the feeding points of each raw material are basically the same. This will cause the raw materials to accumulate in layers, and the prior mixing degree is low, which will in turn affect the efficiency of subsequent mixing.

[0005] For example, the Chinese invention patent with publication number CN106364757A discloses a bag opening and feeding device. Although the device replaces the manual bag breaking and feeding, it also has the problem of the second point mentioned above, and the raw materials are basically discharged in a concentrated manner; the Chinese invention patent with publication number CN110745325A discloses a fully automatic bag breaking and feeding station. The fully automatic bag breaking and feeding station can break the material bags in the silo through the setting of the first driving mechanism and the cutter, but it also has the problem raised in the second point mentioned above.

[0006] In order to solve the problems existing in the feeding process of antioxidant raw materials, the present invention provides a raw material feeding device for preparing a composite antioxidant. Summary of the invention

[0007] The present invention provides a raw material feeding device for preparing a composite antioxidant, comprising a base, a mixing tank is installed on the upper end of the base, a feeding unit is arranged on the upper end of the mixing tank, and a conveying unit is arranged on the right side of the mixing tank; the feeding unit comprises a bearing ring arranged on the upper end of the mixing tank, a placement plate evenly arranged in the circumferential direction is arranged on the upper end of the bearing ring, one end of the placement plate close to the center of the bearing ring is hinged to the upper end surface of the bearing ring, a control component for controlling the placement plate to tilt inward is arranged at the position corresponding to the placement plate on the bearing ring, a semicircular plate is arranged above the rear side of the bearing ring, a support plate located on the rear side of the mixing tank is connected between the semicircular plate and the base, and a support plate for fixing bagged raw materials is arranged below the semicircular plate A clamping assembly and a breaking assembly for cutting the bagged raw materials; the clamping assembly includes an insert plate that is evenly arranged along the circumference of the semicircular plate and located above the corresponding placement plate, the insert plate is located below the semicircular plate, and two symmetrically distributed insert pins are installed at the lower end of the insert plate; the breaking assembly includes a cutting knife that is evenly arranged along the circumference of the semicircular plate, the cutting knife is located below the semicircular plate, and a downward moving assembly for driving the clamping assembly and the breaking assembly to move downward synchronously is arranged above the mixing tank; a mixing assembly is arranged below the bearing ring, the mixing assembly includes a rotating ring with a circular vertical cross-section, a triangular block evenly arranged circumferentially is installed on the upper end of the rotating ring, and a rotating assembly for driving the rotating ring to reciprocate is arranged on the outside of the mixing tank.

[0008] In one possible implementation, the conveying unit includes a belt conveyor inclined to the upper left and composed of a conveyor belt and fixed plates arranged on its front and rear sides. The belt conveyor is installed on a mounting frame located on the right side of the base. The upper end surface of the load-bearing ring is at the same height as the left end of the belt conveyor, and the left end of the conveyor belt is directly opposite to the corresponding placement plate. Two symmetrically distributed side baffles are installed on the upper end of the placement plate, and the end of the side baffle away from the center of the load-bearing ring is inclined outward. The upper end of the placement plate away from the center of the load-bearing ring is provided with a slot matching the corresponding plug plate, and the bottom wall of the slot is provided with a socket that is plug-matched with the corresponding pin.

[0009] In a possible implementation, a correction component for correcting the position of bagged raw materials is provided below the semicircular plate and is located at the rear side of the left end of the belt conveyor, the correction component includes a rectangular frame arranged below the semicircular plate, a telescopic end is installed at the lower end of the semicircular plate and an elastic telescopic rod fixedly connected to the upper end of the rectangular frame, a side abutment plate is provided on the side close to the front and rear inner walls of the rectangular frame, and a uniformly arranged telescopic spring is connected between the side abutment plate and the inner wall corresponding to the rectangular frame, a left abutment plate is provided on the left inner wall of the rectangular frame for sliding left and right installation between the front and rear side abutment plates, and a telescopic spring is also connected between the left abutment plate and the left inner wall of the rectangular frame, the lower ends of the side abutment plate and the left abutment plate are both inclined in the direction close to the inner wall of the rectangular frame, a moving column is installed at the right end of the rectangular frame, a sliding block is installed at the lower end of the moving column, a fixed cylinder is installed at the lower end of the outer side of the load-bearing ring, a fixed ring is installed on the outer ring surface of the lower end of the fixed cylinder, and an arc-shaped raised plate uniformly arranged in the circumferential direction is installed on the upper end of the fixed ring, and a sliding groove slidably connected to the sliding block is provided on the raised surface of the raised plate and the upper end surface of the fixed ring.

[0010] In one possible implementation, a driving assembly for driving the bearing ring to rotate is provided on the front side of the mixing tank, and the driving assembly includes an outer gear ring 1 fixedly mounted on the outer ring surface of the fixing ring, a rotating gear is meshed on the front side of the outer gear ring 1, and the lower end of the rotating gear is connected to the output shaft of motor 1. Motor 1 is installed on the front side of the mixing tank through a support, and an elastic telescopic column installed on the upper end of the support is provided on the side of the motor 1 close to the mixing tank. The lower end of the fixing ring is provided with circumferentially evenly arranged limiting circular holes, and the number of the limiting circular holes is the same as the number of the placement plates. A ball that matches the corresponding limiting circular hole is rotatably installed on the upper end of the telescopic end of the elastic telescopic column.

[0011] In a possible implementation, the plug plate is arranged at the lower end of the same arc-shaped pressure plate, the arc-shaped pressure plate is concentric with the load-bearing ring, a square groove is provided at the position of the lower end of the arc-shaped pressure plate corresponding to the plug plate, the plug plate is hinged at the lower end of the connecting plate, and a pin shaft 2 which is slidably connected to the corresponding square groove is rotatably installed at the upper end of the connecting plate, the scratching knife is installed on the outer side of the same arc-shaped plate, the distance between the scratching knife and the placement plate is greater than the distance between the scratching knife and the placement plate, the scratching knife is located on the left rear side of the conveyor belt, the arc-shaped plate is concentric with the load-bearing ring, and the arc-shaped plate The inner ring surface is connected to a connecting frame, and the downward moving component includes a fan-shaped plate, an arc plate is slidably installed at the lower end of the fan-shaped plate, the fan-shaped plate and the arc plate are concentric, a push plate is installed at the upper end of the fan-shaped plate, and an output shaft is installed on the upper end of the push plate to rotate through the center of the fan-shaped plate and then connect to the connecting frame. A connecting plate fixedly connected to the push plate is installed on the upper end of the arc pressure plate, a cylinder connected to the pushing end and the middle part of the push plate is installed on the semicircular plate, and two telescopic ends distributed on the left and right are installed on the semicircular plate. The guide telescopic rods fixedly connected to the upper end surface of the connecting plate are fixedly connected.

[0012] In one possible implementation, the control component includes a guide groove plate installed at the lower end of the placement plate, a rectangular groove for avoiding the guide groove plate is opened at the position of the upper end of the load-bearing ring corresponding to the placement plate, an inverted T-shaped control rod is arranged at the lower end of the guide groove plate and slides up and down and penetrates the load-bearing ring, a pin shaft is rotatably installed on the upper end of the inverted T-shaped control rod and is slidably connected to the guide groove plate along the length direction of the guide groove plate, a supporting ring rotatably connected to the inner ring surface of the fixed cylinder is installed on the outer ring surface of the mixing tank, an arc-shaped push rod located between the fixed cylinder and the mixing tank is arranged on the upper rear side of the support ring, an inverted T-shaped groove is opened on the arc-shaped push rod and is slidably connected to the lower end of the inverted T-shaped control rod, and two electric push rods distributed on the left and right are connected between the arc-shaped push rod and the support ring.

[0013] In one possible implementation, the rotating assembly includes an auxiliary cylinder, a rotating ring is arranged inside a mixing tank, the auxiliary cylinder is rotatably mounted on the mixing tank, connecting blocks evenly arranged circumferentially are connected between the rotating ring and the inner ring surface of the auxiliary cylinder, an outer gear ring 2 is installed on the outer ring surface of the auxiliary cylinder, a tooth plate is meshed on the right side of the outer gear ring 2, the tooth plate is slidably mounted on the upper end of a support plate fixedly connected to the mixing tank, and a connecting rod hinged to the pushing section of the electric push rod is hinged on one end of the tooth plate close to the right electric push rod.

[0014] In one possible implementation, a support plate is installed on the left side of the support ring, a vertical plate is installed on the upper end of the support plate, a guide plate inclined to the lower left and opposite to the corresponding placement plate is installed on the upper end of the vertical plate, a collecting frame is provided on the upper end of the support plate and is located on the left side of the vertical plate and below the guide plate, an inverted plate is installed on the upper end of the support plate, an electric telescopic rod higher than the side baffle is installed in the middle of the horizontal section of the inverted plate, a scraper is installed on the right end of the telescopic end of the electric telescopic rod, and the lower end surface of the scraper is flush with the upper end surface of the placement plate.

[0015] In one possible implementation, a pressing plate corresponding to the plug plate is arranged between the arc pressure plate and the arc plate, the pressing plate is installed at the lower end of the same arc bar, the upper end of the middle part of the arc bar is connected to the telescopic end of the automatic telescopic rod, the automatic telescopic rod is installed on the push plate, and two guide rods symmetrical about the automatic telescopic rod and connected to the push plate for upward and downward sliding are installed at the upper end of the arc bar.

[0016] In one possible implementation, an inclined plate that is in sliding contact with the conveyor belt is provided at the left end of the side where the fixed plates on the front and rear sides are close to each other, and connecting springs evenly arranged along the inclination direction of the fixed plates are connected between the inclined plates and the fixed plates, and the two inclined plates form an eight-shaped shape with a small diameter facing left.

[0017] The beneficial effects of the present invention are as follows: 1. The present invention can convey a number of bagged raw materials at one time through the cooperation of the conveying unit and the feeding unit, and place the bagged raw materials in a designated feeding position in a uniform arrangement along the semicircular direction. At the same time, the clamping component, the control component and the breaking component can be used to synchronously and forcefully clamp and fix the bagged raw materials, and the bagged raw materials can be uniformly adjusted to an inclined state and uniformly cut open, so that the bagged raw materials can be quickly fed into the mixing tank in the same stable inclined state, reducing the time spent on feeding a single bag, increasing the feeding amount per unit time, and thus improving the feeding efficiency. In addition, after the first batch of bagged raw materials is fed, the second batch of bagged raw materials can be fed, which is beneficial to shorten the waiting time and the overall feeding time, and improve the overall work efficiency.

[0018] 2. The present invention can not only shake the bagged raw materials up and down to accelerate the discharge of the raw materials through the cooperation of the control component and the mixing component, but also use the reciprocating rotating ring and the triangular block to further realize the rapid dispersion and pre-mixing of the raw materials, reduce the probability of stratification and accumulation of raw materials, and improve the uniformity of raw material dispersion, thereby improving the mixing efficiency of subsequent raw materials.

[0019] In addition to the technical problems solved by the embodiments of the present invention described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by a raw material feeding device for preparing a composite antioxidant provided by an embodiment of the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the conveying unit of the present invention.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the feeding unit of the present invention.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the correction component of the present invention.

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the mixing component and the rotating component of the present invention.

[0026] Figure 6 It is a three-dimensional structural schematic diagram of the control component and the rotating component of the present invention.

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the rotating assembly of the present invention.

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the driving assembly of the present invention.

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of the clamping assembly and the material breaking assembly of the present invention.

[0030] Fig.10 It is a three-dimensional structural schematic diagram of the inserting plate, the pressing plate and the scratching knife of the present invention.

[0031] In the figure: 1, mixing tank; 2, feeding unit; 21, bearing ring; 211, placing plate; 212, side baffle; 22, semicircular plate; 221, rectangular frame; 222, elastic telescopic rod; 223, side abutment plate; 224, telescopic spring; 225, left abutment plate; 226, moving column; 227, fixed cylinder; 228, supporting ring; 229, fixed ring; 230, raised plate; 231, outer gear ring 1; 232, rotating gear; 233, motor 1; 234, elastic telescopic column; 235, limiting circular hole; 236, guide groove plate; 237, inverted T-shaped control rod; 238, arc push rod; 239, inverted T-shaped groove; 240, electric push rod; 241, slot; 242, jack ; 243, plug plate; 244, plug pin; 245, arc pressure plate; 247, connecting plate; 251, cutter; 252, arc plate; 253, connecting frame; 254, fan plate; 255, push plate; 256, motor 2; 257, cylinder; 258, guide telescopic rod; 261, rotating ring; 262, triangle block; 263, auxiliary cylinder; 264, outer gear ring 2; 265, tooth plate; 266, connecting rod; 271, pressing plate; 272, arc strip; 273, automatic telescopic rod; 275, guide plate; 276, collecting frame; 277, electric telescopic rod; 278, scraper; 3, conveying unit; 31, conveyor belt; 32, fixed plate; 33, tilting plate; 34, connecting spring. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] See also Figure 1 A raw material feeding device for preparing a composite antioxidant comprises a base, a mixing tank 1 is installed on the upper end of the base, a feeding unit 2 is arranged on the upper end of the mixing tank 1, and a conveying unit 3 for conveying bagged raw materials is arranged on the right side of the mixing tank 1.

[0034] See also Figure 1 and Figure 2 The conveying unit 3 includes a belt conveyor inclined to the upper left and composed of a conveyor belt 31 and fixed plates 32 arranged on its front and rear sides (only part of the belt conveyor is shown in the figure, and the belt conveyor is driven by an existing driving source, which is not shown in the figure). The belt conveyor is installed on a mounting frame located on the right side of the base, and the left ends of the sides where the front and rear fixed plates 32 are close to each other are each provided with an inclined plate 33 that is in sliding contact with the conveyor belt 31. Connecting springs 34 that are evenly arranged along the inclination direction of the fixed plate 32 are connected between the inclined plate 33 and the fixed plate 32, and the two inclined plates 33 form an eight-shaped with a small diameter facing left.

[0035] See also Figure 1 and Figure 3 The feeding unit 2 includes a bearing ring 21 arranged at the upper end of the mixing tank 1, a semicircular plate 22 is arranged above the rear side of the bearing ring 21, a support plate located at the rear side of the mixing tank 1 is connected between the semicircular plate 22 and the base, and a placement plate 211 evenly arranged in the circumferential direction is arranged at the upper end of the bearing ring 21. The upper end surface of the bearing ring 21 is at the same height as the left end of the belt conveyor, and the left end of the conveyor belt 31 is directly opposite to the corresponding placement plate 211. One end of the placement plate 211 close to the center of the bearing ring 21 is hinged to the upper end surface of the bearing ring 21, and two symmetrically distributed side baffles 212 are installed on the upper end of the placement plate 211, and the end of the side baffle 212 away from the center of the bearing ring 21 is inclined outward.

[0036] During operation: first, the bagged raw materials required for preparing the composite antioxidant need to be placed on the conveyor belt 31 of the belt conveyor from right to left in sequence through existing equipment or manually, and the bag mouth of the bagged raw materials is placed toward the load-bearing ring 21. At the same time, the conveyor belt 31 is driven by the existing driving source to continuously convey the bagged raw materials to the upper left direction close to the load-bearing ring 21. As the conveyor belt 31 is continuously conveyed, the front and rear sides of the bagged raw materials gradually squeeze the corresponding inclined plates 33 and smoothly enter between the front and rear inclined plates 33. The inclined plates 33 are affected by the squeezing force of the bagged raw materials and compress the connecting springs 34 and move in the direction close to the corresponding fixed plates 32. By utilizing the cooperation between the front and rear inclined plates 33 and the connecting springs 34, the position of the bagged raw materials can be elastically aligned during the conveying process to ensure that the bagged raw materials are located in the middle part of the conveyor belt 31, so that the subsequent bagged raw materials can accurately reach the upper end of the corresponding placement plate 211.

[0037] When the conveyor belt 31 conveys the bagged raw materials to a position close to the supporting ring 21, the bagged raw materials are basically in a centered state under the action of the front and rear inclined plates 33. As the conveyor belt 31 conveys the bagged raw materials, they gradually separate from the conveyor belt 31 and smoothly reach the upper end of the corresponding placement plate 211. At the same time, the bagged raw materials are located between the two side baffles 212 at the upper end of the placement plate 211. The side baffles 212 can protect and limit the sides of the bagged raw materials to prevent the bagged raw materials from separating from the placement plate 211 during the subsequent rotation of the placement plate 211.

[0038] See also Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 8A correction component for correcting the position of the bagged raw materials is provided below the semicircular plate 22 and is located at the rear side of the left end of the belt conveyor. The correction component includes a rectangular frame 221 provided below the semicircular plate 22. An elastic telescopic rod 222 is installed at the lower end of the semicircular plate 22 with a telescopic end fixedly connected to the upper end of the rectangular frame 221. Side abutment plates 223 are provided on the sides close to the front and rear inner walls of the rectangular frame 221. Evenly arranged telescopic springs 224 are connected between the side abutment plates 223 and the inner walls corresponding to the rectangular frame 221. A left abutment plate 225 is provided on the left inner wall of the rectangular frame 221 and is slidably installed between the front and rear side abutment plates 223. The left abutment plate 225 is connected to the left inner wall of the rectangular frame 221. A telescopic spring 224 is also connected between them, and the lower ends of the side abutment plate 223 and the left abutment plate 225 are inclined toward the direction close to the inner wall of the rectangular frame 221. A movable column 226 is installed at the right end of the rectangular frame 221, and a slider is installed at the lower end of the movable column 226. A fixed cylinder 227 is installed at the lower end of the outer side of the load-bearing ring 21. A supporting ring 228 rotatably connected to the inner ring surface of the fixed cylinder 227 is installed on the outer ring surface of the mixing tank 1, and a fixed ring 229 is installed on the outer ring surface of the lower end of the fixed cylinder 227. The upper end of the fixed ring 229 is installed with arc-shaped raised plates 230 evenly arranged in the circumferential direction, and the raised surface of the raised plate 230 and the upper end surface of the fixed ring 229 are provided with sliding grooves slidably connected to the slider.

[0039] See also Figure 1 , Figure 3 , Figure 5 and Figure 8 A driving assembly for driving the bearing ring 21 to rotate is provided on the front side of the mixing tank 1, and the driving assembly includes an outer gear ring 231 fixedly mounted on the outer ring surface of the fixing ring 229, and a rotating gear 232 is meshed on the front side of the outer gear ring 231, and the lower end of the rotating gear 232 is connected to the output shaft of a motor 233, and the motor 233 is installed on the front side of the mixing tank 1 through a support, and a resilient telescopic column 234 installed on the upper end of the support is provided on the side of the motor 233 close to the mixing tank 1, and the lower end of the fixing ring 229 is provided with circumferentially evenly arranged limiting circular holes 235, and the number of the limiting circular holes 235 is the same as the number of the placing plate 211, and a ball matching the corresponding limiting circular hole 235 is rotatably installed on the upper end of the telescopic end of the resilient telescopic column 234.

[0040] During operation: after the first bagged raw material is placed on the upper end of the placement plate 211, the motor 233 can be used to drive the rotating gear 232 to rotate counterclockwise, and the rotating gear 232 drives the outer gear ring 231 to rotate clockwise. The outer gear ring 231 drives the raised plate 230, the fixed cylinder 227 and the bearing ring 21 to rotate synchronously around the support ring 228 through the fixed ring 229. The bearing ring 21 drives the placement plates 211 evenly arranged circumferentially at its upper end to rotate synchronously with the bagged raw materials already placed on the upper end of the corresponding placement plates 211, until the next placement plate 211 adjacent to the placement plate 211 with the bagged raw materials placed is directly opposite to the conveyor belt 31, and no bagged raw materials are placed on the upper end of the placement plate 211, and then the motor 233 is driven to rotate counterclockwise. 233 stops working, the supporting ring 21 and the placement plate 211 stop rotating, and the conveyor belt 31 continues to place the second bag of bagged raw materials on the upper end of the corresponding placement plate 211 in the same way. Similarly, the intermittent rotation of the supporting ring 21 and the placement plate 211 can be achieved through the intermittent operation of the motor 233, and the bagged raw materials are placed on the upper end of the corresponding placement plate 211 bag by bag in the same way as above, until the upper end of the placement plate 211 in the rear half of the supporting ring 21 is completely filled with bagged raw materials. At this time, the first batch of bagged raw materials have been completely placed, while the second batch of bagged raw materials are still at a certain distance from the supporting ring 21; in addition, the same batch of bagged raw materials can be different types of raw materials.

[0041] When the fixing ring 229 drives the fixing cylinder 227, the carrying ring 21 and the placing plate 211 to rotate to the left end of the conveyor belt 31, the elastic telescopic column 234 cooperates with the limiting circular hole 235 corresponding to the lower end of the fixing ring 229 through the ball. When the fixing ring 229 drives the raised plate 230, the fixing cylinder 227, the carrying ring 21 and the placing plate 211 to rotate again, the ball is rotated by the rotation and extrusion of the fixing ring 229, and the elastic telescopic column 234 contracts synchronously to allow the ball to smoothly disengage from the limiting circular hole 235. The rotation of the fixing ring 229 can be elastically limited by the cooperation of the elastic telescopic column 234, the ball and the limiting circular hole 235, ensuring that the carrying ring 21 and the placing plate 211 can stably complete the intermittent rotation, while ensuring the accuracy of the placing plate 211 and the left end of the conveyor belt 31 when docking, which is conducive to accurately placing the bagged raw materials on the upper end of the placing plate 211.

[0042] During the process of the placement plate 211 with the bagged raw materials rotating clockwise from the position opposite to the conveyor belt 31 to the rear side of the conveyor belt 31, the raised plate 230 rotates synchronously with the fixed ring 229. In the initial state, the movable column 226 and the slider are at the highest point of the corresponding raised plate 230, the rectangular frame 221 is located between the upper parts of the two placement plates 211, and the elastic telescopic rod 222 is in a compressed state. When the placement plate 211 with the bagged raw materials moves to the bottom of the rectangular frame 221, as the fixed ring 229 and the raised plate 230 rotate, the movable column 226 is moved. The sliding block 223 and the sliding groove 225 are moved together to gradually move to the lowest point between the two adjacent raised plates 230, and the rectangular frame 221 moves downward synchronously with the moving column 226, and the elastic telescopic rod 222 is extended synchronously. Since the position of the bagged raw materials has been centered in advance, the bagged raw materials may be slightly offset during the process of being transported to the upper end of the placement plate 211, so the front and rear side abutment plates 223 and the left abutment plate 225 move downward synchronously while gradually contacting the bagged raw materials. The inclined sections at the lower ends of the front and rear side abutment plates 223 and the inclined sections at the lower ends of the left abutment plate 225 first contact the bagged raw materials to Ensure that the upper end of the bagged raw material smoothly enters between the front and rear side abutment plates 223 and the left abutment plate 225. At this time, the lower end of the rectangular frame 221 is located between the side baffle plates 212 but does not contact the side baffle plates 212. The front and rear side abutment plates 223 and the left abutment plate 225 compress the corresponding telescopic springs 224 while receiving the pressure of the bagged raw material. The side abutment plates 223 can move forward and backward, and the left abutment plate 225 can move left and right along the front and rear side abutment plates 223. The cooperation of the front and rear side abutment plates 223, the left abutment plate 225 and the telescopic spring 224 can be used to elastically position the bagged raw material at the upper end of the placement plate 211 Correction is performed so that the bagged raw materials can be uniformly fixed later. While the placement plate 211 drives the bagged raw materials after position correction to continue to move clockwise, the raised plate 230 drives the moving column 226 to move up and reset through the cooperation between the sliding groove and the slider. The rectangular frame 221 moves up synchronously with the moving column 226 to a place away from the bagged raw materials and the placement plate 211. The elastic telescopic rod 222 shrinks to its initial state, so that the placement plate 211 drives the bagged raw materials to rotate smoothly. The subsequent bagged raw materials are corrected and adjusted in the same way during the clockwise rotation of the placement plate 211.

[0043] See also Figure 5 , Figure 6 and Figure 7, the positions of the supporting ring 21 corresponding to the placement plates 211 are all provided with control components for controlling the placement plates 211 to tilt toward the center of the supporting ring 21, the control components include a guide groove plate 236 installed at the lower end of the placement plate 211, a rectangular groove for avoiding the guide groove plate 236 is provided at the position of the upper end of the supporting ring 21 corresponding to the placement plate 211, an inverted T-shaped control rod 237 that slides up and down and penetrates the supporting ring 21 is provided at the lower end of the guide groove plate 236, a pin shaft 1 that is rotatably installed on the upper end of the inverted T-shaped control rod 237 and is slidably connected to the guide groove plate 236 along the length direction of the guide groove plate 236, an arc push rod 238 located between the fixed cylinder 227 and the mixing tank 1 is provided on the upper rear side of the support ring 228, an inverted T-shaped groove 239 that is slidably connected to the lower end of the inverted T-shaped control rod 237 is provided on the arc push rod 238, and two electric push rods 240 distributed on the left and right are connected between the arc push rod 238 and the supporting ring 228.

[0044] See also Figure 3 , Figure 5 , Figure 6 , Fig. 9 and Fig.10 A clamping assembly for fixing the bagged raw materials and a material breaking assembly for cutting the bagged raw materials are arranged below the semicircular plate 22. A slot 241 is provided at the upper end of the placement plate 211 away from the center of the supporting ring 21. Two symmetrically distributed plug holes 242 are provided on the bottom wall of the slot 241. The clamping assembly includes plug plates 243 that are evenly arranged along the circumference of the semicircular plate 22 and are located above the corresponding placement plate 211 and matched with the corresponding slot 241. The plug plates 243 are located below the semicircular plate 22. The plug plate 243 has two pins 244 matched with the corresponding sockets 242 at the lower end. The plug plate 243 is arranged at the lower end of the same arc-shaped pressure plate 245. The arc-shaped pressure plate 245 is concentric with the bearing ring 21. The position of the lower end of the arc-shaped pressure plate 245 corresponding to the plug plate 243 is provided with a square groove. The plug plate 243 is hinged at the lower end of the connecting plate 247. The upper end of the connecting plate 247 is rotatably installed with a pin shaft 2 that is slidably connected to the corresponding square groove. The pin shaft 2 slides radially along the arc-shaped pressure plate 245.

[0045] See also Figure 3 , Fig. 9 and Fig.10 The material breaking assembly includes a cutter 251 which is evenly arranged along the circumference of the semicircular plate 22 and located on the inner side of the arc pressure plate 245. The cutter 251 is located below the semicircular plate 22. The distance between the cutter 251 and the placement plate 211 is greater than the distance between the plug plate 243 and the placement plate 211. The cutter 251 is located on the left rear side of the conveyor belt 31. The cutter 251 is installed on the outer side of the same arc plate 252. The arc plate 252 is concentric with the load-bearing ring 21, and the inner ring surface of the arc plate 252 is connected to a connecting frame 253.

[0046] See also Figure 1 , Figure 3 , Fig. 9 and Fig.10 A downward moving assembly for driving the clamping assembly and the material breaking assembly to move downward synchronously is arranged above the mixing tank 1, and the downward moving assembly includes a fan-shaped plate 254, an arc plate 252 is slidably mounted on the lower end of the fan-shaped plate 254, the fan-shaped plate 254 is concentric with the arc plate 252, a push plate 255 is mounted on the upper end of the fan-shaped plate 254, and a motor 256 is mounted on the upper end of the push plate 255, and the output shaft rotates through the center of the fan-shaped plate 254 and is connected to the connecting frame 253, a connecting plate fixedly connected to the push plate 255 is mounted on the upper end of the arc pressure plate 245, a cylinder 257 connected to the pushing end and the middle part of the push plate 255 is mounted on the semicircular plate 22, and a guide telescopic rod 258 with two telescopic ends distributed on the left and right and fixedly connected to the upper end surface of the connecting plate is mounted on the semicircular plate 22.

[0047] See also Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 A mixing assembly is arranged below the bearing ring 21, and the mixing assembly includes a rotating ring 261 with a circular vertical cross-section, and a triangular block 262 arranged evenly in the circumferential direction is installed on the upper end of the rotating ring 261, and the number of the triangular blocks 262 is greater than the number of the placement plates 211. A rotating assembly for driving the rotating ring 261 to reciprocate is arranged on the outside of the mixing tank 1, and the rotating assembly includes an auxiliary cylinder 263, and the rotating ring 261 is arranged inside the mixing tank 1, and the auxiliary cylinder 263 is rotatably installed on the mixing tank 1. The rotating ring 261 and the inner annular surface of the auxiliary cylinder 263 are connected with connecting blocks arranged evenly in the circumferential direction, and the outer annular surface of the auxiliary cylinder 263 is installed with an outer gear ring 264, and the right side of the outer gear ring 264 is meshed with a tooth plate 265, and the tooth plate 265 is slidably installed on the upper end of the support plate fixedly connected to the mixing tank 1, and the end of the tooth plate 265 close to the right electric push rod 240 is hinged with a connecting rod 266 hinged to the pushing section of the electric push rod 240.

[0048] During operation: after the upper ends of the placing plates 211 on half of the supporting ring 21 are all filled with bagged raw materials, the inserting plate 243 is now located just above the outer side of the corresponding bagged raw materials, and the cutting knife 251 is located on the counterclockwise side of the corresponding bagged raw materials along the supporting ring 21, and then the push plate 255 and the connecting plate can be pushed downward by the cylinder 257, and the guide telescopic rod 258 is synchronously extended, and the connecting plate drives the arc-shaped pressing plate 245, the connecting plate 247, the inserting plate 243 and the inserting pin 244 to move downward synchronously, and the push plate 255 drives the motor 256, the fan-shaped plate 254, the arc-shaped plate 252, the connecting frame 253 and the cutting knife 251 to move downward synchronously. In this process, the arc-shaped pressing plate 245 gradually drives the inserting plate 243 to be inserted into the corresponding slot 241 through the connecting plate 247, and the inserting plate 243 can press the bagged raw materials. The end of the material away from the center of the supporting ring 21 (i.e., the end of the packaging belt) is inserted into the slot 241. At the same time, the pin 244 at the lower end of the plug plate 243 penetrates the packaging bag of the bagged raw material and is finally inserted into the corresponding socket 242. All the plug plates 243 and the pins 244 move downward synchronously with the arc-shaped pressing plate 245 to complete the action of clamping the corresponding bagged raw material. The cooperation of the plug plates 243, the pins 244, the slot 241 and the socket 242 can stably and powerfully clamp the bagged raw material, and effectively prevent the bagged raw material from falling off during subsequent feeding. When the plug plates 243 and the pins 244 are inserted into the corresponding slots 241 and sockets 242, the arc-shaped plate 252 drives the semi-circularly evenly arranged cutters 251 to move downward to a position flush with the side of the bagged raw material close to the center of the supporting ring 21.

[0049] In the process of the placement plate 211 driving the bagged raw materials to rotate, the guide groove plate 236 and the inverted T-shaped control rod 237 rotate synchronously with the placement plate 211 and the bearing ring 21. In the initial state, the inverted T-shaped groove 239 on the arc push rod 238 is flush with the lower end of the inverted T-shaped control rod 237. The inverted T-shaped control rod 237 gradually enters the inverted T-shaped groove 239 on the arc push rod 238 during the counterclockwise rotation. At this time, the inverted T-shaped control rods 237 corresponding to the bagged raw materials all slide to match the inverted T-shaped groove 239. After the bagged raw materials are fixed, the two electric push rods 240 distributed on the left and right can be simultaneously The arc push rod 238 is pushed upward to move upward. The arc push rod 238 drives the inverted T-shaped control rod 237 to move upward synchronously through the cooperation between the inverted T-shaped groove 239 and the inverted T-shaped control rod 237. While the inverted T-shaped control rod 237 moves upward, it pushes the guide groove plate 236 to move upward through the pin shaft 1. The pin shaft 1 slides along the guide groove plate 236 accordingly. The guide groove plate 236 can drive the corresponding placement plate 211 to rotate upward around the hinge point between it and the load-bearing ring 21, so that the placement plate 211 and the bagged raw materials are in a state of being inclined toward the center of the load-bearing ring 21, so as to facilitate the subsequent outflow of the raw materials inside the bagged raw materials.

[0050] During the process of tilting the placement plate 211, the insert plate 243 and the insert pin 244 always maintain a state of vertically pressing the bagged raw materials. The insert plate 243 gradually rotates around the hinge point between it and the corresponding connecting plate 247. The connecting plate 247 rotates synchronously around the pin shaft 2 and slides accordingly along the square groove through the pin shaft 2 to ensure that the insert plate 243 and the insert pin 244 can stably clamp the bagged raw materials.

[0051] After the tilt adjustment of the bagged raw materials is completed, the motor 256 drives the connecting frame 253 and the arc plate 252 to rotate clockwise. The arc plate 252 rotates along the fan plate 254 while driving the semi-circularly evenly arranged cutting knife 251 to rotate synchronously. The cutting knife 251 can cut the corresponding bagged raw materials. At this time, the raw materials inside the bagged raw materials can flow smoothly to the inside of the mixing tank 1 along the tilt direction of the placement plate 211 at the same time. The simultaneous feeding of several bagged raw materials can not only increase the amount of material fed at one time and improve the feeding efficiency, but also make the raw materials relatively evenly fed into the mixing tank 1, avoid concentrating the feeding at one point, reduce the stratification and accumulation of raw materials, and facilitate the subsequent rapid mixing of the raw materials.

[0052] In order to make the raw materials in the bagged raw materials enter the mixing tank 1 quickly, the arc-shaped push rod 238 can be pushed up and down by the left and right electric push rods 240 to move back and forth, and the placement plate 211 is synchronously reciprocated up and down through the cooperation of the guide groove plate 236, the pin shaft 1, the inverted T-shaped control rod 237 and the inverted T-shaped groove 239, and the plug plate 243, the connecting plate 247 and the pin shaft 2 are synchronously reciprocated and moved, so that the bagged raw materials swing back and forth to accelerate the outflow of the raw materials. In addition, during the reciprocating movement of the arc-shaped push rod 238, the pushing section of the right electric push rod 240 controls the tooth plate 265 to move along the support plate through the connecting rod 266. The outer tooth ring 264 reciprocates under the action of the tooth plate 265, and the auxiliary cylinder 263 drives the rotating ring 261 and the triangular block 262 to reciprocate synchronously through the connecting blocks evenly arranged circumferentially. The raw materials just fall on the rotating ring 261 and the triangular block 262 during the process of flowing to the mixing tank 1. The reciprocating rotating ring 261 and the triangular block 262 can use centrifugal force to quickly disperse and pre-mix the raw materials. At the same time, the triangular block 262 itself can also disperse the raw materials, so that the raw materials are further dispersed and fall into the mixing tank 1, thereby improving the uniformity and mixing efficiency of the raw materials mixed in the subsequent mixing tank 1.

[0053] See also Figure 3 , Fig. 9 and Fig.10A pressing plate 271 corresponding to the plug plate 243 is arranged between the arc pressure plate 245 and the arc plate 252. The pressing plate 271 is installed at the lower end of the same arc bar 272. The upper end of the middle part of the arc bar 272 is connected to the telescopic end of the automatic telescopic rod 273. The automatic telescopic rod 273 is installed on the push plate 255. Two guide rods symmetrical about the automatic telescopic rod 273 and connected to the push plate 255 for up and down sliding are installed at the upper end of the arc bar 272.

[0054] See also Figure 1 , Figure 3 and Figure 5 A supporting plate is installed on the left side of the support ring 228, a vertical plate is installed on the upper end of the supporting plate, a guide plate 275 is installed on the upper end of the vertical plate, which is inclined to the lower left and opposite to the corresponding placement plate 211, and a collecting frame 276 is provided on the upper end of the supporting plate, which is located on the left side of the vertical plate and below the guide plate 275. An inverted plate is installed on the upper end of the supporting plate, and an electric telescopic rod 277 higher than the side baffle 212 is installed in the middle of the horizontal section of the inverted plate. A scraper 278 is installed on the right end of the telescopic end of the electric telescopic rod 277, and the lower end surface of the scraper 278 is flush with the upper end surface of the placement plate 211.

[0055] See also Figure 1-Figure 10 , when working: in the process of the cylinder 257 driving the clamping assembly and the breaking assembly to move downward, the push plate 255 drives the arc strip 272, the guide rod, and the pressing plate 271 corresponding to the plug plate 243 to move downward synchronously through the automatic telescopic rod 273. The automatic telescopic rod 273 in the initial state is in a retracted state, and the pressing plate 271 does not interfere with the fixing, tilting, breaking and feeding of the bagged raw materials. After all the raw materials inside the bagged raw materials are put into the mixing tank 1, the electric push rod 240 drives the arc push rod 238 and the inverted T-shaped control rod 237 to move down and reset. The inverted T-shaped control rod 237 drives the placement plate 211 to rotate and reset to a horizontal state through the cooperation between the pin shaft 1 and the guide groove plate 236, and the packaging bag of the bagged raw materials is synchronously moved. After the packing bag is relocated, the guide rod 255 moves downward along the push plate 255 until the packing bag is tightly pressed on the upper end of the placing plate 211 by the pressing plate 271. Then, the clamping assembly and the material breaking assembly can be driven upward and reset by the cylinder 257. The guide telescopic rod 258 shrinks synchronously. At the same time, the automatic telescopic rod 273 continues to extend to ensure that the pressing plate 271 is stably pressed on the upper end of the packing bag. The pressed packing bag can be smoothly separated from the plug plate 243 and the plug pin 244. After the plug plate 243 and the plug pin 244 are moved upward and reset, the automatic telescopic rod 273 drives the pressing plate 271 to move upward and away from the packing bag and reset through the arc bar 272.

[0056] After the clamping assembly and the material breaking assembly are moved up and reset, the second batch of bagged raw materials are just transported from the conveyor belt 31 to the position corresponding to the empty placement plate 211. Then, the motor 233 can be used to intermittently drive the rotating gear 232 and the outer gear ring 231 to rotate again, and the load-bearing ring 21 drives the placement plates 211 arranged uniformly in the circumferential direction to rotate synchronously and intermittently. The inverted T-shaped control rod 237 rotates synchronously with the corresponding placement plate 211 and gradually disengages from the inverted T-shaped groove 239 on the arc push rod 238. In the process of the placement plate 211 driving the second batch of bagged raw materials to rotate, the placement plate 211 with the packaging bags is rotated to be opposite to the guide plate 275. The electric telescopic rod 277 is in an extended state in the initial state, and the scraper 278 is located on the side of the corresponding placement plate 211 close to the center of the carrying ring 21. When the new bagged raw materials are moved to the corresponding placement plate 211, the electric telescopic rod 277 drives the scraper 278 to move from right to left along the corresponding placement plate 211. While the scraper 278 moves, it pushes the empty packaging bag to move along the placement plate 211 in the direction of the guide plate 275, and finally makes the empty packaging bag enter the collection frame 276. The empty packaging bags can be collected by the collection frame 276 so that they can be processed uniformly later.

[0057] In this way, the second batch of bagged raw materials are loaded bag by bag, and the packaging bags of the first batch of bagged raw materials are uniformly pushed into the collection frame 276. Subsequently, the second batch of bagged raw materials can be positionally corrected and uniformly clamped, tilted, broken, fed, and the empty packaging bags can be removed in the same way as above.

[0058] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0059] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A raw material feeding device for preparing a composite antioxidant, comprising a base, a mixing tank (1) is installed on the upper end of the base, characterized in that: The mixing tank (1) is provided with a feeding unit (2) at the upper end, and a conveying unit (3) is provided on the right side of the mixing tank (1); The feeding unit (2) comprises a bearing ring (21) arranged at the upper end of the mixing tank (1); a circumferentially evenly arranged placement plates (211) are arranged at the upper end of the bearing ring (21); one end of the placement plates (211) close to the center of the bearing ring (21) is hinged to the upper end surface of the bearing ring (21); positions on the bearing ring (21) corresponding to the placement plates (211) are provided with control components for controlling the placement plates (211) to tilt inward; a semicircular plate (22) is arranged above the rear side of the bearing ring (21); a support plate located at the rear side of the mixing tank (1) is connected between the semicircular plate (22) and the base; and a clamping component for fixing the bagged raw materials and a material breaking component for cutting the bagged raw materials are arranged below the semicircular plate (22); The clamping assembly comprises an inserting plate (243) evenly arranged along the circumference of the semicircular plate (22) and located above the corresponding placement plate (211); the inserting plate (243) is located below the semicircular plate (22); and two symmetrically distributed inserting pins (244) are installed at the lower end of the inserting plate (243); The material breaking component comprises blades (251) uniformly arranged along the circumference of the semicircular plate (22), the blades (251) being located below the semicircular plate (22), and a downward moving component for driving the clamping component and the material breaking component to move downward synchronously is arranged above the mixing tank (1); A mixing assembly is arranged below the bearing ring (21), the mixing assembly comprising a rotating ring (261) with a circular vertical cross section, triangular blocks (262) evenly arranged in the circumferential direction are mounted on the upper end of the rotating ring (261), and a rotating assembly for driving the rotating ring (261) to reciprocate is arranged on the outer side of the mixing tank (1); A correction component for correcting the position of the bagged raw materials is arranged below the semicircular plate (22) and is located at the rear side of the left end of the belt conveyor. The correction component comprises a rectangular frame (221) arranged below the semicircular plate (22); an elastic telescopic rod (222) whose telescopic end is fixedly connected to the upper end of the rectangular frame (221) is installed at the lower end of the semicircular plate (22); a side abutment plate (223) is arranged on the side close to the front and rear inner walls of the rectangular frame (221); uniformly arranged telescopic springs (224) are connected between the side abutment plate (223) and the inner wall corresponding to the rectangular frame (221); a left abutment plate (225) is arranged on the left inner wall of the rectangular frame (221) and is slidably installed between the front and rear side abutment plates (223); and the left abutment plate (225) is arranged on the left inner wall of the rectangular frame (221). A telescopic spring (224) is also connected between the side abutment plate (225) and the left inner wall of the rectangular frame (221); the lower ends of the side abutment plate (223) and the left abutment plate (225) are inclined in a direction close to the inner wall of the rectangular frame (221); a moving column (226) is installed at the right end of the rectangular frame (221); a slider is installed at the lower end of the moving column (226); a fixed cylinder (227) is installed at the lower end of the outer side of the bearing ring (21); a fixed ring (229) is installed on the outer ring surface of the lower end of the fixed cylinder (227); an arc-shaped raised plate (230) evenly arranged in the circumferential direction is installed at the upper end of the fixed ring (229); a sliding groove slidably connected to the slider is provided on the raised surface of the raised plate (230) and the upper end surface of the fixed ring (229); 2. The raw material feeding device for preparing a composite antioxidant according to claim 1, characterized in that: The conveying unit (3) comprises a belt conveyor inclined upward to the left, which is composed of a conveyor belt (31) and fixed plates (32) arranged on both sides of the conveyor belt. The belt conveyor is installed on a mounting frame located on the right side of the base. The upper end surface of the bearing ring (21) is at the same height as the left end of the belt conveyor, and the left end of the conveyor belt (31) is directly opposite to the corresponding placement plate (211). Two symmetrically distributed side baffles (212) are installed on the upper end of the placement plate (211). The end of the side baffle (212) away from the center of the bearing ring (21) is inclined outward. The upper end of the placement plate (211) away from the center of the bearing ring (21) is provided with a slot (241) matching with the corresponding plug plate (243). The bottom wall of the slot (241) is provided with a socket (242) that is plugged and matched with the corresponding plug pin (244).

3. The raw material feeding device for preparing a composite antioxidant according to claim 1, characterized in that: The front side of the mixing tank (1) is provided with a driving assembly for driving the bearing ring (21) to rotate, the driving assembly comprising an outer toothed ring (231) fixedly mounted on the outer ring surface of the fixing ring (229), the front side of the outer toothed ring (231) is meshed with a rotating gear (232), the lower end of the rotating gear (232) is connected to the output shaft of a motor (233), the motor (233) is installed on the front side of the mixing tank (1) through a support, the side of the motor (233) close to the mixing tank (1) is provided with an elastic telescopic column (234) installed on the upper end of the support, the lower end of the fixing ring (229) is provided with circumferentially evenly arranged limiting circular holes (235), the number of the limiting circular holes (235) is the same as the number of the placement plate (211), and the upper end of the telescopic end of the elastic telescopic column (234) is rotatably mounted with a ball matched with the corresponding limiting circular hole (235).

4. The raw material feeding device for preparing a composite antioxidant according to claim 1, characterized in that: The plug plate (243) is arranged at the lower end of the same arc-shaped pressure plate (245), the arc-shaped pressure plate (245) is concentric with the bearing ring (21), and a square groove is provided at the position of the lower end of the arc-shaped pressure plate (245) corresponding to the plug plate (243). The plug plate (243) is hinged at the lower end of the connecting plate (247), and a pin shaft 2 which is slidably connected to the corresponding square groove is rotatably installed at the upper end of the connecting plate (247). The cutter (251) is installed on the outer side of the same arc-shaped plate (252), and the distance between the cutter (251) and the placement plate (211) is greater than the distance between the cutter (251) and the placement plate (211). The cutter (251) is located at the left rear side of the conveyor belt (31), the arc-shaped plate (252) is concentric with the bearing ring (21), and the inner ring surface of the arc-shaped plate (252) is connected to the inner ring surface of the arc-shaped plate (252). A connecting frame (253) is connected, and the downward moving component includes a fan-shaped plate (254), an arc plate (252) is slidably mounted on the lower end of the fan-shaped plate (254), the fan-shaped plate (254) and the arc plate (252) are cocentric, a push plate (255) is mounted on the upper end of the fan-shaped plate (254), and a motor 2 (256) is mounted on the upper end of the push plate (255), and the output shaft rotates through the center of the fan-shaped plate (254) and is connected to the connecting frame (253). A connecting plate fixedly connected to the push plate (255) is mounted on the upper end of the arc pressure plate (245), a cylinder (257) connected to the pushing end and the middle part of the push plate (255) is mounted on the semicircular plate (22), and a guide telescopic rod (258) with two telescopic ends distributed on the left and right and fixedly connected to the upper end surface of the connecting plate is mounted on the semicircular plate (22).

5. The raw material feeding device for preparing a composite antioxidant according to claim 1, characterized in that: The control assembly comprises a guide groove plate (236) mounted at the lower end of the placement plate (211); a rectangular groove for avoiding the guide groove plate (236) is provided at the upper end of the load-bearing ring (21) at a position corresponding to the placement plate (211); an inverted T-shaped control rod (237) is provided at the lower end of the guide groove plate (236) and slides up and down and penetrates the load-bearing ring (21); a pin shaft 1 is rotatably mounted on the upper end of the inverted T-shaped control rod (237) and is slidably connected to the guide groove plate (236) along the length direction of the guide groove plate (236); The outer ring surface of the mixing tank (1) is provided with a supporting ring (228) rotatably connected to the inner ring surface of the fixed cylinder (227); an arc-shaped push rod (238) located between the fixed cylinder (227) and the mixing tank (1) is arranged on the upper rear side of the supporting ring (228); an inverted T-shaped groove (239) slidably connected to the lower end of the inverted T-shaped control rod (237) is provided on the arc-shaped push rod (238); and two electric push rods (240) distributed on the left and right are connected between the arc-shaped push rod (238) and the supporting ring (228).

6. The raw material feeding device for preparing a composite antioxidant according to claim 5, characterized in that: The rotating assembly comprises an auxiliary cylinder (263), a rotating ring (261) is arranged inside the mixing tank (1), the auxiliary cylinder (263) is rotatably mounted on the mixing tank (1), connecting blocks evenly arranged in the circumferential direction are connected between the rotating ring (261) and the inner ring surface of the auxiliary cylinder (263), an outer toothed ring 2 (264) is mounted on the outer ring surface of the auxiliary cylinder (263), a toothed plate (265) is meshed on the right side of the outer toothed ring 2 (264), the toothed plate (265) is slidably mounted on the upper end of a support plate fixedly connected to the mixing tank (1), and a connecting rod (266) is hingedly connected to the pushing section of the electric push rod (240) at one end of the toothed plate (265) close to the right electric push rod (240).

7. The raw material feeding device for preparing a composite antioxidant according to claim 6, characterized in that: A support plate is installed on the left side of the support ring (228), a vertical plate is installed on the upper end of the support plate, a guide plate (275) is installed on the upper end of the vertical plate, which is inclined to the lower left and opposite to the corresponding placement plate (211), a collection frame (276) is arranged on the upper end of the support plate, which is located on the left side of the vertical plate and below the guide plate (275), an inverted plate is installed on the upper end of the support plate, an electric telescopic rod (277) higher than the side baffle (212) is installed in the middle of the horizontal section of the inverted plate, and a scraper (278) is installed on the right end of the telescopic end of the electric telescopic rod (277), and the lower end surface of the scraper (278) is flush with the upper end surface of the placement plate (211).

8. The raw material feeding device for preparing a composite antioxidant according to claim 4, characterized in that: A pressing plate (271) corresponding to the plug plate (243) is arranged between the arc-shaped pressing plate (245) and the arc-shaped plate (252). The pressing plate (271) is installed at the lower end of the same arc-shaped strip (272). The upper end of the middle part of the arc-shaped strip (272) is connected to the telescopic end of the automatic telescopic rod (273). The automatic telescopic rod (273) is installed on the push plate (255). Two guide rods symmetrical with respect to the automatic telescopic rod (273) and connected to the push plate (255) for sliding up and down are installed at the upper end of the arc-shaped strip (272).

9. The raw material feeding device for preparing a composite antioxidant according to claim 2, characterized in that: The left ends of the fixed plates (32) on the front and rear sides that are close to each other are both provided with inclined plates (33) that are in sliding contact with the conveyor belt (31); connecting springs (34) that are evenly arranged along the inclined direction of the fixed plates (32) are connected between the inclined plates (33) and the fixed plates (32); and the two inclined plates (33) form an eight-shaped shape with a small diameter facing left.

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