Automatic feeding device and method of using the same

Abstract

The present invention discloses an automatic feeding device and a method for using the same, which belongs to the technical field of plastic masterbatch processing, and includes an upper conveying component and a lower conveying component, wherein the upper conveying component is connected to a first support below, the lower conveying component is connected to a second support below, and the first support and the second support are connected to a base below. In the present invention, a transfer frame, a rotating cylinder, a hot air blower, a support cylinder, and a movable orifice plate are used, and the hot air passes through the raw material and the movable orifice plate and enters the support cylinder downward, and the hot air flowing through the surface of the raw material dries and de-powders the raw material, and the hot air flowing through acts on the surface of the raw material to take away the powder and moisture on the surface of the raw material, thereby realizing a fast and efficient processing process for the raw material, ensuring that the raw material is in a dry state before mixing, and avoiding the situation in which the powdered raw material is mixed with other specifications of raw materials to cause agglomeration or clogging of the mixing equipment, so that the feeding process is more efficient and the subsequent processing is ensured to be stable and smooth.

Description

Technical Field

[0001] The invention belongs to the technical field of plastic masterbatch processing, and in particular relates to an automatic feeding device and a use method thereof. Background Art

[0002] The preparation of flame retardant masterbatch for plastics is a delicate chemical engineering process, involving formula design, raw material preparation, mixing, melting, extrusion, cooling, pelletizing and other steps. It is usually composed of flame retardants, fillers and some additives, and is prepared through a specific processing technology. The use of flame retardant masterbatch can improve the flame retardancy of plastic materials while ensuring that its other physical and chemical properties are not greatly affected.

[0003] The disadvantages of the prior art are that the plastic masterbatch raw materials may absorb moisture during storage or transportation, resulting in moisture. The powder part adhered to the surface of the raw materials can only be filtered and separated for large and small granular raw materials. The powdered raw materials adhered to the surface of the raw materials cannot be processed. The moisture of the raw materials and the large difference in particle size between different raw materials will cause agglomeration or uneven mixing during the raw material mixing process. In addition, the powdered raw materials will cause equipment blockage in the subsequent mixing or extrusion process due to their small particle size.

[0004] Based on this, the present invention designs an automatic feeding device and a method of using the same to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problem of powder part adhering to the surface of raw materials by simply filtering the raw materials, and only large-sized and small-sized granular raw materials can be filtered and separated. The powdered raw materials adhering to the surface of the raw materials cannot be processed. The moisture condition of the raw materials and the large difference in particle size between different raw materials will cause agglomeration or uneven mixing during the raw material mixing process. In addition, the powdered raw materials will cause equipment blockage in the subsequent mixing or extrusion process due to their small particle size. An automatic feeding device and a method of using the same are proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An automatic feeding device comprises an upper conveying assembly and a lower conveying assembly, a transfer frame is arranged between the upper conveying assembly and the lower conveying assembly, two fixed support rods are connected to the front and rear sides of the transfer frame, the top ends of the fixed support rods are connected to support bearings, a rotating cylinder is rotatably connected in the support bearings, four partitions are equidistantly arranged on the arc surface of the rotating cylinder, two first gears are arranged on the side of the rotating cylinder, a connecting hole is opened on the arc surface of the rotating cylinder between the two partitions, and a movable orifice plate is slidably connected in the connecting hole;

[0008] The front and rear sides of the transfer frame are connected to a driving assembly, the output shaft of the driving assembly is provided with a second gear, the second gear is meshed with the first gear, the front side of the driving assembly output shaft is provided with a rotating mechanism, the rotating mechanism is provided with a shielding and pushing mechanism, the front and rear sides of the shielding and pushing mechanism are connected to a first cross bar, the other end of the first cross bar is connected to the transfer frame, the front and rear sides of the transfer frame are connected to a second cross bar, the top of the second cross bar is connected to a sliding support mechanism, the opposite surfaces of the two sliding support mechanisms are connected to a shielding arc plate, an air outlet is provided under the shielding arc plate, an air outlet pipe is connected to the shielding arc plate, and the other end of the air outlet pipe is connected to a hot air blower.

[0009] As a further description of the above technical solution:

[0010] The upper conveying component is connected to a first support below, the lower conveying component is connected to a second support below, the first support and the second support are connected to a base below, a cushion block is connected to the middle position of the base, the transfer frame is connected to the cushion block, the right end of the upper conveying component is located on the upper side of the transfer frame, the left end of the lower conveying component is located on the lower side of the transfer frame, and the two support bearings are located between the two first gears.

[0011] As a further description of the above technical solution:

[0012] The shielding and pushing mechanism is arranged in the rotating cylinder, and the outer sleeve of the sliding support mechanism on the front side is provided with a second elastic component. The hot air blower is connected to the sliding support mechanism on the rear side. An air intake pipe is connected under the hot air blower, and the other end of the air intake pipe is connected to a filter box. The filter box is connected to the back side of the shielding and pushing mechanism, and an intermediate pipe is connected between the filter box and the shielding and pushing mechanism.

[0013] As a further description of the above technical solution:

[0014] The shielding arc plate is set to be hollow, and the shielding arc plate is connected with the air outlet head and the air outlet pipe. The inner diameter of the shielding arc plate is the same as the radius of the rotation trajectory of the partition. The partition is arranged under the shielding arc plate, and two baffles connected to the partition are arranged outside the rotating cylinder. The baffle is rotatably connected in the transfer frame, and the partition located in the arc-shaped part of the transfer frame is slidably connected to the transfer frame.

[0015] As a further description of the above technical solution:

[0016] A guide rod is connected under the shielding arc plate, a contact groove is provided on the front side of the baffle plate, the guide rod is located in the contact groove, the two end surfaces of the contact groove are set to be inclined, the guide rod is set to be cylindrical, the front and rear sides of the movable orifice plate are connected to sliding blocks, the inner wall of the connecting hole is provided with a sliding groove, the sliding block is slidably connected in the sliding groove, the sliding block is connected to a first elastic component connected to the sliding groove, and the uppermost movable orifice plate is in contact with the shielding push-up mechanism.

[0017] As a further description of the above technical solution:

[0018] The rotating mechanism comprises a second transmission wheel connected to the outside of the output shaft of the front driving assembly, a transmission belt is arranged outside the second transmission wheel, a first transmission wheel is arranged inside the transmission belt, and the first transmission wheel is connected to the shielding and pushing mechanism.

[0019] As a further description of the above technical solution:

[0020] The shielding and pushing mechanism includes a supporting cylinder connected to the first cross bar, the supporting cylinder is sleeved in the rotating cylinder, an opening is opened on the supporting cylinder, the position of the opening corresponds to the position of the shielding arc plate, the intermediate pipe is connected to the supporting cylinder, and the filter box is connected to the back of the supporting cylinder.

[0021] As a further description of the above technical solution:

[0022] Connecting bearings are provided on both the front and rear sides of the inner wall of the support cylinder, a rotating shaft is rotatably connected inside the connecting bearing, the first transmission wheel is arranged outside the rotating shaft, three rotating wheels are arranged outside the rotating shaft, the rotating wheels are in contact with the movable orifice plate located on the uppermost side, and the connection position between the rotating shaft and the rotating wheel is located at the eccentric position of the rotating wheel.

[0023] As a further description of the above technical solution:

[0024] The sliding support mechanism includes an intermediate plate, a side of the intermediate plate close to the shielding arc plate is connected to a support seat, the second cross bar is connected to the support seat, a sliding rod passes through the front of the intermediate plate and is slidably connected, the sliding rod is connected to the shielding arc plate, and a circular plate is connected to the end of the sliding rod away from the shielding arc plate, the second elastic component is sleeved outside the sliding rod on the front side, and the hot air blower is connected to the support seat on the rear side.

[0025] A method for using an automatic feeding device, the method comprising the following steps:

[0026] When preparing flame-retardant masterbatch of plastic, it is necessary to inject the raw materials into the mixer for mixing. The mixing process is transported by a feeding device. The raw materials are first placed on the upper conveying assembly. At this time, the upper conveying assembly, the lower conveying assembly and the driving assembly are working. The upper conveying assembly is running to transport the raw materials into the transfer frame. When the driving assembly controls the rotation of the second gear, the first gear and the rotating cylinder are controlled to rotate by meshing. During the rotation of the rotating cylinder, the partition is used to lift the raw materials in the transfer frame upward. When the raw materials rotate upward with the partition to near the top, the two partitions on the upper side are blocked by the shielding arc plate during the rotation, and the raw materials on the arc-shaped active orifice plate will slide and unfold as they rotate, so that the raw materials are more evenly distributed on the active orifice plate when blown by hot air. At this time, the built-in sensor module detects that the active orifice plate corresponds to the shielding arc plate, and controls the hot air blower to work;

[0027] When the movable orifice plate rotates to the uppermost position, the movable orifice plate contacts the rotating wheel, and the driving assembly uses the second transmission wheel and the transmission belt to control the first transmission wheel and the rotating shaft to control the rotation of the rotating wheel. During the rotation of the rotating wheel, due to its eccentric connection, the movable orifice plate will be squeezed to move upward. During the movement of the movable orifice plate, the raw materials on its upper side will be pushed to flip and move. When the hot air blower is running, the hot air will be blown onto the movable orifice plate through the outlet pipe, the shielding arc plate and the outlet head. As the baffle rotates, the guide rod gradually moves into the contact groove. Due to the inclined surface in the contact groove, the contact groove is squeezed. The guide rod and the second elastic component control the elastic force of the guide rod to make the guide rod and the shielding arc plate reciprocate forward and backward. The reciprocating movement of the air outlet head blows the raw materials on the movable orifice plate more evenly and comprehensively, so as to heat and dry the raw materials on the movable orifice plate. The circulating airflow makes the water vapor in the drying process be processed more thoroughly and efficiently. The circulating airflow acts on the surface of the raw materials that are constantly turning on the movable orifice plate, and blows and cleans the powder adhered to the surface of the raw materials. The airflow that passes through the movable orifice plate and flows into the support tube carries the powder and water vapor through the intermediate pipe and flows into the filter box.

[0028] The filter in the filter box filters water vapor and powder. Since the air inlet end of the hot air blower is connected to the filter box, the hot air that flows into the filter box and is filtered is sucked and heated for utilization, thereby reducing the energy required for heating. The raw materials after drying and de-powdering rotate with the partition and the rotating drum. The uppermost partition rotates clockwise until the shielding arc plate is separated. The sensor module controls the hot air blower to stop working, and the raw materials finally fall onto the lower conveying assembly, and the lower conveying assembly transports the raw materials into the mixer.

[0029] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0030] 1. In the present invention, a transfer frame, a rotating drum, a hot air blower, a supporting drum and a movable orifice plate are adopted. During the rotation of the rotating drum, the partition plate can be used to continuously lift the raw materials in the transfer frame upwards. The raw materials rotate to the uppermost position with the rotating drum. At this time, the raw materials between the two partitions will slide and spread to the right along the arc-shaped movable orifice plate and the inertia of rotation, so that the raw materials are relatively evenly located on the movable orifice plate. The hot air blower works to blow hot air onto the surface of the raw materials through the shielding arc plate and the air outlet head. The hot air passes through the raw materials and the movable orifice plate downward into the supporting drum. The hot air flowing through the surface of the raw materials will dry and de-powder the raw materials. The flowing hot air acts on the surface of the raw materials to take away the powder and moisture on the surface of the raw materials, thereby realizing a fast and efficient processing process of the raw materials, ensuring that the raw materials are in a dry state before mixing, and avoiding the situation where the powdered raw materials are mixed with raw materials of other specifications to cause agglomeration or clogging of the mixing equipment, so that the feeding process is more efficient and the subsequent processing is guaranteed to be stable and smooth.

[0031] 2. In the present invention, a rotating shaft, a driving component, a rotating wheel, a movable orifice plate, a sliding groove and a sliding block are adopted. Since the movable orifice plate is slidably arranged in the sliding groove by the sliding block, and the sliding block is exerted with a downward elastic force by the first elastic component, when the rotating wheel rotates, it will squeeze the movable orifice plate located on the uppermost side, control the movable orifice plate to move up, and cooperate with the first elastic component to realize the up and down reciprocating action of the movable orifice plate, and the movable orifice plate will shake the raw material on its upper side up and down to make it flip, and the flipped raw material will contact with the hot air, so that the hot air can contact with the surface of the raw material more comprehensively and efficiently, and the drying and de-powdering process of the raw material will be more efficient and sufficient, and the flipping process will vibrate the raw material to a certain extent, and the vibration is combined with the hot air blowing, so that the treatment of the powder on the surface of the raw material is more sufficient and efficient, and the hot air is blown from top to bottom, and with the flipping of the raw material itself, there is no need to use the hot air to overcome the gravity of the raw material to blow it up, which can save the energy consumption required for the de-powdering process to a certain extent.

[0032] 3. In the present invention, a contact groove, a guide rod, a sliding rod, an intermediate plate and a second elastic component are used. The second elastic component applies a backward force to the sliding rod. As the baffle rotates, the contact groove will continuously approach and then move away from the guide rod. The inclined surface of the contact groove will contact the guide rod as it rotates. Due to the setting of the inclined surface, the guide rod will be controlled to enter the contact groove and be squeezed out of the contact groove. It is used to control the guide rod and the shielding arc plate to perform a back and forth reciprocating movement. The gas ejected by the air outlet head will perform a reciprocating movement. The reciprocating movement of the air outlet head can blow the raw materials on the movable orifice plate more evenly and comprehensively. Since the raw materials on the upper side are constantly turned over, the gaps between the raw materials will have irregular changes. Combined with the blowing at multiple positions and angles, the drying and de-powdering of the raw materials are more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1A three-dimensional structural schematic diagram of an automatic feeding device and a method of using the same proposed by the present invention;

[0034] Figure 2 A schematic diagram of the three-dimensional structure of a transfer frame of an automatic feeding device and a method of using the same proposed by the present invention;

[0035] Figure 3 A schematic diagram of the three-dimensional structure of a rotating drum of an automatic feeding device and a method of using the same proposed by the present invention;

[0036] Figure 4 A schematic diagram of a three-dimensional structure of a movable orifice plate of an automatic feeding device and a method of using the same proposed by the present invention;

[0037] Figure 5 A schematic diagram of a three-dimensional cross-sectional structure of a rotating drum of an automatic feeding device and a method of using the same proposed by the present invention;

[0038] Figure 6 The invention provides an automatic feeding device and a method for using the same Figure 5 The enlarged structural diagram of part A in the middle;

[0039] Figure 7 A schematic diagram of a three-dimensional structure in which a baffle and a transfer frame are separated in an automatic feeding device and a method of using the same proposed by the present invention;

[0040] Figure 8 A schematic diagram of the bottom-up three-dimensional structure of a shielding arc plate of an automatic feeding device and a method of using the same proposed by the present invention;

[0041] Fig. 9 A schematic diagram of the three-dimensional structure of a sliding support mechanism of an automatic feeding device and a method of using the same proposed by the present invention;

[0042] Fig.10 A schematic diagram of the three-dimensional structure of a support cylinder of an automatic loading device and a method of using the same proposed by the present invention;

[0043] Fig.11 A schematic diagram of the three-dimensional structure of a hot air blower of an automatic feeding device and a method of using the same proposed by the present invention.

[0044] Legend:

[0045] 1. Upper conveying assembly; 2. Lower conveying assembly; 3. First support; 4. Second support; 5. Base; 6. Pad; 7. Transfer frame; 8. Fixed support rod; 9. Support bearing; 10. Rotating cylinder; 11. First gear; 12. Partition plate; 13. Baffle plate; 14. Connecting hole; 15. Sliding groove; 16. Active orifice plate; 17. Sliding block; 18. First elastic assembly; 19. Rotating mechanism; 191. First transmission wheel; 192. Second transmission wheel; 193. Transmission belt; 20. Shielding and pushing mechanism; 201. Support Cylinder; 202, connecting bearing; 203, rotating shaft; 204, rotating wheel; 205, opening; 21, first cross bar; 22, second cross bar; 23, sliding support mechanism; 231, middle plate; 232, sliding rod; 233, circular plate; 234, supporting seat; 24, second elastic component; 25, hot air blower; 26, air outlet pipe; 27, air inlet pipe; 28, filter box; 29, middle pipe; 30, shielding arc plate; 31, air outlet head; 32, contact groove; 33, guide rod; 34, driving component; 35, second gear. DETAILED DESCRIPTION

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

[0047] Please see attached Figure 1 -Attached Fig.11 The present invention provides a technical solution: an automatic feeding device, comprising an upper conveying assembly 1 and a lower conveying assembly 2, a transfer frame 7 is arranged between the upper conveying assembly 1 and the lower conveying assembly 2, two fixed support rods 8 are connected to the front and rear sides of the transfer frame 7, the top of the fixed support rod 8 is connected to a support bearing 9, a rotating cylinder 10 is rotatably connected in the support bearing 9, four partitions 12 are equidistantly arranged on the arc surface of the rotating cylinder 10, two first gears 11 are arranged on the side of the rotating cylinder 10, a connecting hole 14 is opened on the arc surface of the rotating cylinder 10 between the two partitions 12, and a movable orifice plate 16 is slidably connected in the connecting hole 14;

[0048] The front and rear sides of the transfer frame 7 are connected to a driving assembly 34, and a second gear 35 is provided on the output shaft of the driving assembly 34, and the second gear 35 is meshed with the first gear 11. A rotating mechanism 19 is provided on the output shaft of the front driving assembly 34, and a shielding and pushing mechanism 20 is provided on the rotating mechanism 19. The front and rear sides of the shielding and pushing mechanism 20 are connected to a first cross bar 21, and the other end of the first cross bar 21 is connected to the transfer frame 7. The front and rear sides of the transfer frame 7 are connected to a second cross bar 22, and the top of the second cross bar 22 is connected to a sliding support mechanism 23, and the opposite surfaces of the two sliding support mechanisms 23 are connected to a shielding arc plate 30, and an air outlet head 31 is provided under the shielding arc plate 30, and an air outlet pipe 26 is connected to the shielding arc plate 30, and the other end of the air outlet pipe 26 is connected to the head hot air blower 25.

[0049] Since the rotating drum 10 is restricted and connected by the supporting bearing 9, the rotating drum 10 can rotate stably. The driving assembly 34 and the second gear 35 are used to control the first gear 11 and the rotating drum 10 to rotate by the meshing of the second gear 35. At the same time, the output shaft of the driving assembly 34 can control the rotation of the rotating mechanism 19.

[0050] When the hot air blower 25 is in operation, it sucks gas and heats the gas, and passes the hot gas into the shielding arc plate 30 through the outlet pipe 26. The gas in the shielding arc plate 30 is blown onto the surface of the raw material through the outlet head 31. At the same time, the air inlet end of the hot air blower 25 is connected with the filter box 28 through the air inlet pipe 27. The gas in the support tube 201 can be sucked through the filter box 28, and the hot gas including the powder in the support tube 201 is sucked into the filter box 28. The filter net in the filter box 28 filters the powder and moisture, and the hot gas is recycled to the hot air blower 25, thereby reducing the time and energy required for heating the air at room temperature.

[0051] During the rotation of the rotating drum 10, the partition 12 and the transfer frame 7 are used to lift the raw materials in the transfer frame 7 upwards. The space between the two partitions 12 is used to store the raw materials. The two uppermost partitions 12 cooperate with the baffle 13 and the shielding arc plate 30 to place the raw materials at this position in a relatively closed environment, which is convenient for drying and de-powdering.

[0052] Specifically, Figure 1 , Figure 3-4 As shown, the upper conveying component 1 is connected to the first support 3 at the bottom, the lower conveying component 2 is connected to the second support 4 at the bottom, the first support 3 and the second support 4 are connected to the base 5 at the bottom, the middle position of the base 5 is connected to the cushion block 6, the transfer frame 7 is connected to the cushion block 6, the right end of the upper conveying component 1 is located on the upper side of the transfer frame 7, the left end of the lower conveying component 2 is located on the lower side of the transfer frame 7, and the two support bearings 9 are located between the two first gears 11.

[0053] Specifically, Figure 2 , Figure 8 and Fig.10 As shown in the figure, the shielding and pushing mechanism 20 is arranged inside the rotating cylinder 10. A second elastic component 24 is sleeved outside the sliding support mechanism 23 at the front side. The hot air blower 25 is connected to the sliding support mechanism 23 at the rear side. An air inlet pipe 27 is connected below the hot air blower 25. The other end of the air inlet pipe 27 communicates with a filter box 28. The filter box 28 is connected to the back of the shielding and pushing mechanism 20. An intermediate pipe 29 communicates between the filter box 28 and the shielding and pushing mechanism 20.

[0054] The second elastic component 24 is used to apply an elastic force to the sliding support mechanism 23 to prevent the sliding support mechanism 23 from remaining stable when not under external force. The filter box 28 is internally provided with a filter screen for filtering moisture and powder in the air.

[0055] Specifically, as Figure 7-8 shown in the figure, the shielding arc plate 30 is hollow. The shielding arc plate 30 communicates with the air outlet head 31 and the air outlet pipe 26. The inner diameter of the shielding arc plate 30 is the same as the radius of the rotation trajectory of the partition plate 12. The partition plate 12 is arranged below the shielding arc plate 30. Two baffles 13 connected to the partition plate 12 are arranged outside the rotating cylinder 10. The baffles 13 are rotatably connected in the transfer frame 7. The partition plate 12 located in the arc-shaped part inside the transfer frame 7 is slidably connected to the transfer frame 7.

[0056] The shielding arc plate 30 can shield and enclose the two partition plates 12 that move to the uppermost side, realizing the enclosure of the space where the raw materials are located by the partition plates 12, the baffles 13 and the shielding arc plate 30. The size of the shielding arc plate 30 is relatively large, and it maintains a closed state for a longer time within a certain angle of rotation of the partition plate 12.

[0057] Specifically, as Figure 3 、 Figure 5-6 and Figure 8 shown in the figure, a guide rod 33 is connected below the shielding arc plate 30. A contact groove 32 is formed on the front surface of the front baffle 13. The guide rod 33 is located in the contact groove 32. The two end faces of the contact groove 32 are inclined. The guide rod 33 is cylindrical. Sliding blocks 17 are connected to both the front and rear sides of the movable hole plate 16. A sliding groove 15 is formed on the inner wall of the connecting hole 14. The sliding blocks 17 are slidably connected in the sliding groove 15. A first elastic component 18 connected to the sliding groove 15 is connected to the sliding blocks 17. The uppermost movable hole plate 16 is in contact with the shielding and pushing mechanism 20.

[0058] As the baffle 13 rotates, the contact groove 32 will continuously approach and then move away from the guide rod 33. The inclined surface of the contact groove 32 will contact the guide rod 33 as it rotates. Due to the setting of the inclined surface, the situation of controlling the guide rod 33 to enter and be extruded from the contact groove 32 will occur, which is used to control the reciprocating movement of the guide rod 33 and the shielding arc plate 30, and the gas ejected from the air outlet head 31 will perform a reciprocating movement.

[0059] Specifically, Fig.10 As shown, the rotating mechanism 19 includes a second transmission wheel 192 connected to the outside of the output shaft of the front driving assembly 34, a transmission belt 193 is provided outside the second transmission wheel 192, a first transmission wheel 191 is provided inside the transmission belt 193, and the first transmission wheel 191 is connected to the shielding and pushing mechanism 20.

[0060] The first transmission wheel 191, the second transmission wheel 192 and the transmission belt 193 can transmit the power of the driving assembly 34 to the rotating shaft 203, so as to realize the synchronous rotation of the rotating drum 10 and the rotating shaft 203. Since the second gear 35 is smaller than the first gear 11, the rotation speed of the second gear 35 and the rotating shaft 203 is greater than the rotation speed of the first gear 11.

[0061] The shielding and pushing mechanism 20 includes a support cylinder 201 connected to the first cross bar 21, the support cylinder 201 is sleeved in the rotating cylinder 10, an opening 205 is opened on the support cylinder 201, the position of the opening 205 corresponds to the position of the shielding arc plate 30, the intermediate pipe 29 is connected to the support cylinder 201, and the filter box 28 is connected to the back of the support cylinder 201.

[0062] Specifically, Fig.10 As shown, connecting bearings 202 are provided on both the front and rear sides of the inner wall of the support cylinder 201, and a rotating shaft 203 is rotatably connected inside the connecting bearing 202. The first transmission wheel 191 is arranged outside the rotating shaft 203, and three rotating wheels 204 are arranged outside the rotating shaft 203. The rotating wheel 204 is in contact with the movable orifice plate 16 located on the uppermost side, and the connection position between the rotating shaft 203 and the rotating wheel 204 is located at the eccentric position of the rotating wheel 204.

[0063] Only the top opening 205 of the support cylinder 201 can allow hot air to flow downward, and other positions of the support cylinder 201 support and shield the rotating cylinder 10 and the movable orifice plate 16 to prevent raw material powder from leaking out of the holes of the movable orifice plate 16 away from the opening 205. Only when the movable orifice plate 16 rotates to the uppermost position corresponding to the opening 205, can the hot air pass through the raw material and the movable orifice plate 16. The connecting bearing 202 supports and limits the rotating shaft 203 and the rotating wheel 204, so that the rotating wheel 204 can rotate smoothly. Since the connecting bearing 202 is arranged at an eccentric position of the front axis of the rotating cylinder 10, it will contact the rotating wheel 204 only after the movable orifice plate 16 rotates to the uppermost side. The rotating wheel 204 is eccentrically arranged, so the rotating wheel 204 will push the movable orifice plate 16 to move during its rotation. When the movable orifice plate 16 moves, it pushes and flips the raw material on its surface, so that the raw material is vibrated and the position is evenly adjusted;

[0064] Specifically, Figure 9-11As shown, the sliding support mechanism 23 includes an intermediate plate 231, and a support seat 234 is connected to the side of the intermediate plate 231 close to the shielding arc plate 30, the second cross bar 22 is connected to the support seat 234, and a sliding rod 232 passes through and is slidably connected to the front of the intermediate plate 231, the sliding rod 232 is connected to the shielding arc plate 30, and a circular plate 233 is connected to the end of the sliding rod 232 away from the shielding arc plate 30, the second elastic component 24 is sleeved outside the sliding rod 232 on the front side, and the hot air blower 25 is connected to the support seat 234 on the rear side.

[0065] The middle plate 231 supports the sliding rod 232 and the shielding arc plate 30, so that the shielding arc plate 30 can maintain stable contact with the partition plate 12 and can perform stable movement in the front-back direction. The second elastic component 24 applies a backward force to the sliding rod 232, so that the shielding arc plate 30 remains stable when not subjected to external force.

[0066] A method for using an automatic feeding device, the method comprising the following steps:

[0067] When preparing flame retardant masterbatch of plastic, it is necessary to inject the raw materials into the mixer for mixing. The mixing process is transported by a feeding device. The raw materials are first placed on the upper conveying component 1. At this time, the upper conveying component 1, the lower conveying component 2 and the driving component 34 are working. The upper conveying component 1 is running to transport the raw materials into the transfer frame 7. When the driving component 34 controls the rotation of the second gear 35, the first gear 11 and the rotating cylinder 10 are controlled to rotate by meshing. During the rotation of the rotating cylinder 10, the partition 12 is used to lift the raw materials in the transfer frame 7 upward. When the raw materials rotate upward to near the top with the partition 12, the two partitions 12 on the upper side are blocked by the shielding arc plate 30 during the rotation, and the raw materials on the arc-shaped active orifice plate 16 will slide and unfold as they rotate, so that the raw materials are more evenly distributed on the active orifice plate 16 when blown by hot air. At this time, the built-in sensor module detects that the active orifice plate 16 corresponds to the shielding arc plate 30, and controls the hot air blower 25 to work;

[0068] When the movable orifice plate 16 rotates to the uppermost position, the movable orifice plate 16 contacts the rotating wheel 204, and the driving assembly 34 uses the second transmission wheel 192 and the transmission belt 193 to control the first transmission wheel 191 and the rotating shaft 203 to control the rotation of the rotating wheel 204. During the rotation of the rotating wheel 204, due to its eccentric connection, the movable orifice plate 16 will be squeezed to move upward. During the movement of the movable orifice plate 16, the raw materials on its upper side will be pushed to flip and move. When the hot air blower 25 is running, the hot air is blown onto the movable orifice plate 16 through the air outlet pipe 26, the shielding arc plate 30 and the air outlet head 31. As the baffle 13 rotates, the guide rod 33 gradually moves into the contact groove 32. Since there is an inclination in the contact groove 32, the hot air blower 25 will blow hot air onto the movable orifice plate 16. The inclined surface makes the contact groove 32 squeeze the guide rod 33 and the elastic force of the second elastic component 24 on the guide rod 33 to control the guide rod 33 and the shielding arc plate 30 to move back and forth, and the air outlet head 31 reciprocates to blow the raw materials on the movable orifice plate 16 more evenly and comprehensively, so as to achieve heating and drying of the raw materials on the movable orifice plate 16, and the circulating airflow makes the water vapor in the drying process be processed more thoroughly and efficiently, and the circulating airflow acts on the surface of the raw materials that are constantly turning on the movable orifice plate 16, and blows and cleans the powder adhered to the surface of the raw materials, and the airflow that passes through the movable orifice plate 16 and flows into the support tube 201 carries the powder and water vapor through the intermediate pipe 29 and flows into the filter box 28;

[0069] The filter in the filter box 28 filters water vapor and powder. Since the air inlet end of the hot air blower 25 is connected to the filter box 28, the hot air that flows into the filter box 28 and is filtered is sucked and heated for utilization, thereby reducing the energy required for heating. The raw materials after drying and de-powdering rotate with the partition 12 and the rotating drum 10. The uppermost partition 12 rotates clockwise until the shielding arc plate 30 is separated. The sensor module controls the hot air blower 25 to stop working, and the raw materials finally fall onto the lower conveying component 2, and the lower conveying component 2 transports the raw materials into the mixer.

[0070] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic feeding device, comprising an upper conveying assembly (1) and a lower conveying assembly (2), characterized in that: A transfer frame (7) is provided between the upper conveying assembly (1) and the lower conveying assembly (2), two fixed support rods (8) are connected to the front and rear sides of the transfer frame (7), the top end of the fixed support rod (8) is connected to a support bearing (9), a rotating cylinder (10) is rotatably connected inside the support bearing (9), four partitions (12) are equidistantly arranged on the arc surface of the rotating cylinder (10), two first gears (11) are provided on the side of the rotating cylinder (10), a connecting hole (14) is provided on the arc surface of the rotating cylinder (10) located between the two partitions (12), and a movable orifice plate (16) is slidably connected inside the connecting hole (14); The front and rear sides of the transfer frame (7) are both connected to a driving assembly (34); a rotating mechanism (19) is provided outside the output shaft of the front driving assembly (34); a shielding and pushing mechanism (20) is provided outside the rotating mechanism (19); the front and rear sides of the transfer frame (7) are both connected to a second cross bar (22); the top end of the second cross bar (22) is connected to a sliding support mechanism (23); the opposite surfaces of the two sliding support mechanisms (23) are connected to a shielding arc plate (30); an air outlet (31) is provided below the shielding arc plate (30); The upper conveying assembly (1) is connected to a first support (3) at the bottom, the lower conveying assembly (2) is connected to a second support (4) at the bottom, the first support (3) and the second support (4) are connected to a base (5) at the bottom, a cushion block (6) is connected to the middle of the base (5), the transfer frame (7) is connected to the cushion block (6), the right end of the upper conveying assembly (1) is located on the upper side of the transfer frame (7), the left end of the lower conveying assembly (2) is located on the lower side of the transfer frame (7), and two support bearings ( 9) is located between the two first gears (11), the output shaft of the driving assembly (34) is provided with a second gear (35), the second gear (35) is meshed with the first gear (11), the front and rear sides of the shielding and pushing mechanism (20) are connected to the first cross bar (21), the other end of the first cross bar (21) is connected to the transfer frame (7), the shielding arc plate (30) is connected to the air outlet pipe (26), and the other end of the air outlet pipe (26) is connected to the head hot air blower (25); A guide rod (33) is connected to the shielding arc plate (30) below, a contact groove (32) is provided on the front side of the baffle plate (13), the guide rod (33) is located in the contact groove (32), the two end surfaces of the contact groove (32) are set to be inclined, the guide rod (33) is set to be cylindrical, the front and rear sides of the movable orifice plate (16) are connected to sliding blocks (17), the inner wall of the connecting hole (14) is provided with a sliding groove (15), the sliding block (17) is slidably connected in the sliding groove (15), the sliding block (17) is connected to a first elastic component (18) connected to the sliding groove (15), and the uppermost movable orifice plate (16) is in contact with the shielding push-up mechanism (20); The rotating mechanism (19) comprises a second transmission wheel (192) connected to the outside of the output shaft of the front driving assembly (34); a transmission belt (193) is arranged outside the second transmission wheel (192); a first transmission wheel (191) is arranged inside the transmission belt (193); and the first transmission wheel (191) is connected to the shielding and pushing mechanism (20); The sliding support mechanism (23) comprises an intermediate plate (231), a side of the intermediate plate (231) close to the shielding arc plate (30) is connected to a support seat (234), the second cross bar (22) is connected to the support seat (234), a sliding rod (232) passes through the front side of the intermediate plate (231) and is slidably connected, the sliding rod (232) is connected to the shielding arc plate (30), and one end of the sliding rod (232) away from the shielding arc plate (30) is connected to a circular plate (233), the second elastic component (24) is sleeved outside the sliding rod (232) on the front side, and the hot air blower (25) is connected to the support seat (234) on the rear side.

2. The automatic feeding device according to claim 1, characterized in that: The shielding and pushing mechanism (20) is arranged in the rotating drum (10), the front sliding support mechanism (23) is provided with a second elastic component (24) on its outer shell, the hot air blower (25) is connected to the rear sliding support mechanism (23), an air intake pipe (27) is connected below the hot air blower (25), the other end of the air intake pipe (27) is connected to a filter box (28), the filter box (28) is connected to the back side of the shielding and pushing mechanism (20), and an intermediate pipe (29) is connected between the filter box (28) and the shielding and pushing mechanism (20).

3. An automatic feeding device according to claim 2, characterized in that: The shielding arc plate (30) is designed to be hollow, and the shielding arc plate (30) is connected to the air outlet head (31) and the air outlet pipe (26). The inner diameter of the shielding arc plate (30) is the same as the radius of the rotation trajectory of the partition (12). The partition (12) is arranged under the shielding arc plate (30). Two baffles (13) connected to the baffle (12) are arranged outside the rotating cylinder (10). The baffles (13) are rotatably connected in the transfer frame (7), and the baffle (12) located in the arc-shaped part of the transfer frame (7) is slidably connected to the transfer frame (7).

4. The automatic feeding device according to claim 3, characterized in that: The shielding and pushing mechanism (20) comprises a support cylinder (201) connected to a first cross bar (21); the support cylinder (201) is sleeved in a rotating cylinder (10); an opening (205) is provided on the support cylinder (201); the position of the opening (205) corresponds to the position of a shielding arc plate (30); the intermediate pipe (29) is connected to the support cylinder (201); and the filter box (28) is connected to the back of the support cylinder (201).

5. The automatic feeding device according to claim 4, characterized in that: Connecting bearings (202) are provided on both the front and rear sides of the inner wall of the support cylinder (201), a rotating shaft (203) is rotatably connected inside the connecting bearing (202), the first transmission wheel (191) is arranged outside the rotating shaft (203), three rotating wheels (204) are arranged outside the rotating shaft (203), the rotating wheels (204) are in contact with the movable orifice plate (16) located at the uppermost side, and the connection position between the rotating shaft (203) and the rotating wheel (204) is located at an eccentric position of the rotating wheel (204).

6. A method for using an automatic feeding device, according to the automatic feeding device of claim 5, characterized in that: The method of use comprises the following steps: When preparing flame retardant masterbatch of plastic, it is necessary to inject raw materials into a mixer for mixing. The mixing process is carried out by using a feeding device. The raw materials are first placed on an upper conveying component (1). At this time, the upper conveying component (1), the lower conveying component (2) and the driving component (34) are working. The upper conveying component (1) is running to convey the raw materials into a transfer frame (7). When the driving component (34) controls the second gear (35) to rotate, the first gear (11) and the rotating drum (10) are controlled to rotate by meshing. During the rotation of the rotating drum (10), The raw materials in the transfer frame (7) are lifted upward by using the partitions (12). When the raw materials rotate upward with the partitions (12) to near the top, the upper sides of the two partitions (12) on the upper side are blocked by the shielding arc plates (30) during the rotation process, and the raw materials on the arc-shaped movable orifice plates (16) slide and spread out as they rotate, so that the raw materials are more evenly distributed on the movable orifice plates (16) when blown by hot air. At this time, the built-in sensor module detects that the movable orifice plates (16) correspond to the shielding arc plates (30), and controls the hot air blower (25) to work; When the movable orifice plate (16) rotates to the uppermost position, the movable orifice plate (16) contacts the rotating wheel (204), and the driving assembly (34) uses the second transmission wheel (192) and the transmission belt (193) to control the first transmission wheel (191) and the rotating shaft (203) to control the rotating wheel (204) to rotate. During the rotation of the rotating wheel (204), due to its eccentric connection, it will squeeze the movable orifice plate (16) to move upward. During the movement of the movable orifice plate (16), the raw materials on the upper side thereof will be pushed to turn over and move. When the hot air blower (25) is in operation, hot air is blown onto the movable orifice plate (16) through the air outlet pipe (26), the shielding arc plate (30) and the air outlet head (31). As the baffle plate (13) rotates, the guide rod (33) gradually moves to the contact groove. (32), due to the presence of an inclined surface in the contact groove (32), the contact groove (32) squeezes the guide rod (33) and the second elastic component (24) exerts elastic force on the guide rod (33) to control the guide rod (33) and the shielding arc plate (30) to perform a back-and-forth reciprocating motion, and the air outlet head (31) reciprocates to blow air more evenly and comprehensively on the raw material on the movable orifice plate (16), thereby achieving heating and drying of the raw material on the movable orifice plate (16), and the circulating airflow acts on the constantly turning surface of the raw material on the movable orifice plate (16), and blows and cleans the powder adhered to the surface of the raw material, and the airflow that passes through the movable orifice plate (16) and flows into the support tube (201) carries the powder and water vapor through the intermediate tube (29) and flows into the filter box (28); The filter in the filter box (28) filters water vapor and powder. Since the air inlet end of the hot air blower (25) is connected to the filter box (28), the hot air that flows into the filter box (28) and is filtered is sucked and heated for utilization, thereby reducing the energy required for heating. The raw materials that have been dried and de-powdered rotate along with the partition (12) and the rotating drum (10). The uppermost partition (12) rotates clockwise until the shielding arc plate (30) is separated. The sensor module controls the hot air blower (25) to stop working, and the raw materials finally fall onto the lower conveying component (2). The lower conveying component (2) transports the raw materials into the mixer.

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