An automatic feeding device and method for polymer material forming

Abstract

The present invention discloses an automatic feeding device and method for polymer material forming, which relates to the technical field of polymer material processing. The present invention includes a storage barrel arranged on a support frame, and further includes: a sorting unit arranged in the storage barrel, including a feeding component, a color sorting component and a slag removal component; a feeding unit arranged in the storage barrel, including a storage component, a vibration component and a metering and discharging component, wherein the storage component is used to store polymer particles, and the vibration component cooperates with the metering and discharging component to realize the quantitative discharging of polymer particles, avoiding accumulation and blockage during discharging. The advantages are as follows: The present invention can realize the color sorting and screening of good and defective products of polymer particles during the feeding process, realize the independent storage of polymer particles of different colors, recover dust and broken particles during the color sorting process, and can realize the precise metering and feeding of polymer particles, with a higher degree of automation.

Description

Technical Field

[0001] The present invention relates to the technical field of polymer material processing, and particularly relates to an automatic feeding device and method for polymer material molding. Background Art

[0002] Polymer materials refer to materials formed by the chemical polymerization of a large number of monomer molecules. During the processing and molding process, an automatic feeding device is usually used to inject granular polymer materials into a mold to improve the processing and molding efficiency of the polymer granular materials.

[0003] Existing polymer materials use various methods to achieve automatic feeding. For example, a fully automatic suction feeding device for polymer material display tool processing with the publication number CN211393104U includes a box body. One side of the box body is connected to a feeding pipe, and a negative pressure pump communicating with the inner cavity is arranged on the other side of the box body. Two groups of inclined sieve plates are symmetrically arranged horizontally in the inner cavity of the box body. A connecting rod is movably inserted into the top of the box body, and a pressing plate in contact with the sieve plate is fixedly connected to the bottom of the connecting rod. An operation box is fixedly arranged at the upper end of the box body. Grinding boxes are arranged on both inner walls of the box body at the position below the sieve plates, and connecting pipes communicating the bottom of the sieve plates and the grinding boxes are symmetrically arranged on the outer side of the box body.

[0004] When the existing feeding device feeds polymer granular materials, it usually only uses a filter screen to screen the polymer granules. This screening method can only achieve volume screening and cannot screen according to the color of the polymer granules, resulting in the mixed feeding of polymer materials of different colors and making it difficult to achieve quantitative feeding. For example, in the above-mentioned existing technology for reference, the device only has sieve plates to achieve volume screening of polymer materials and cannot achieve color sorting screening of polymer granules. At the same time, the device uses a grinding roller rolling method to control the volume of polymer granules, and more waste residues will be mixed in the polymer granules during the rolling process, which will not only generate more dust, but also the waste residues cannot be screened and utilized, resulting in waste.

[0005] Therefore, it is urgent to design an automatic feeding device and method for polymer material molding to solve the above problems. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides an automatic feeding device and method for polymer material molding, which solves the problems raised in the above background art.

[0007] To achieve the above purposes, the present invention is realized through the following technical solutions: An automatic feeding device for polymer material molding includes a storage bucket for feeding and storing polymer granular materials arranged on a support frame, and further includes:

[0008] The sorting unit is arranged inside the storage bin and is used to achieve the feeding and color sorting of polymer particles, and clean the slag during the color sorting process. It includes a feeding component, a color sorting component and a slag removal component. The feeding component is used to convey the polymer particles into the color sorting component for sorting and discharging, and remove slag through the slag removal component during the color sorting process;

[0009] The feeding unit is arranged inside the storage bin and is used to achieve the storage and quantitative feeding of polymer particles. It includes a storage component, a vibration component and a metering and discharging component. The storage component is used to store the polymer particles. The vibration component and the metering and discharging component cooperate to achieve the quantitative discharging of polymer particles and avoid accumulation and blockage during discharging.

[0010] Preferably, a control console is arranged on the support frame. The control console cooperates with the sorting unit and the feeding unit to achieve the programmed operation of the sorting unit and the feeding unit and realize the automatic feeding of polymer particles.

[0011] Preferably, a partition plate for separation is arranged inside the storage bin. The feeding component includes a feeding hopper fixedly installed on the storage bin for feeding polymer particles. A conduction box is fixedly arranged inside the storage bin and is communicated with the feeding hopper. A distribution box is fixedly arranged inside the storage bin and is communicated with the lower part of the conduction box.

[0012] Preferably, the color sorting component includes two symmetrically arranged color sensors fixedly arranged inside the conduction box. The two color sensors are used to identify the color of polymer particles. A fixing plate is fixedly installed inside the distribution box, and a controller matched with the color sensors is arranged inside the fixing plate;

[0013] A plurality of micro motors are arranged inside the fixing plate, and a swing wheel is fixedly installed on the driving end of each micro motor. A striking and screening plate for picking and hitting polymer particles is fixedly installed on the lower part of each swing wheel.

[0014] Preferably, a servo motor is arranged outside the support frame, and a driving roller is rotatably installed between the driving end of the servo motor and the storage bin;

[0015] The slag removal component includes an air guiding round box fixedly installed inside the storage bin. The air guiding round box is rotationally connected with the driving roller. An air impeller is arranged on the driving roller through a one-way bearing two, and the one-way bearing two cooperates with the forward rotation of the driving roller. The air impeller is located inside the air guiding round box. An exhaust pipe for exhausting is arranged between the air guiding round box and the storage bin. A barrier plate is fixedly installed inside the air guiding round box, and a plurality of slag blocking holes are formed in the barrier plate. Two impurity suction boxes for adsorbing slag are fixedly communicated between the air guiding round box and the distribution box;

[0016] A plurality of air supplement holes for air supplement are formed in the material distribution box, and a slag removal square pipe for slag discharge is arranged between the air guiding circular box and the storage barrel.

[0017] Preferably, the storage component includes two discharge square pipes fixedly communicated with the lower part of the material distribution box. A material distribution triangular plate is fixedly installed in the material distribution box, and the two discharge square pipes are respectively located on both sides of the material distribution triangular plate. Two storage boxes are arranged in the storage barrel, and receiving openings matched with the corresponding discharge square pipes are formed in both storage boxes.

[0018] Preferably, the vibration component includes a screening filter screen for screening polymer particles slidably installed in the storage box. An incomplete gear is arranged on the driving roller through a one-way bearing one. A support plate is fixedly installed in the storage barrel, and a vibration tooth plate matched with the incomplete gear is arranged on the support plate through two vibration springs. A linkage mechanism is installed between the vibration tooth plate and the screening filter screen. A discharge square pipe for defective products is fixedly communicated with the lower part of the storage box.

[0019] Preferably, the linkage mechanism includes a linkage folding rod fixedly installed on the vibration tooth plate. A lifting vibration rod is fixedly installed on the screening filter screen. An electromagnetic clamping block is fixedly installed on the lifting vibration rod, and an electromagnetic clamping part matched with the electromagnetic clamping block is fixedly installed on the linkage folding rod.

[0020] Preferably, a metering discharge component is arranged on each storage box. The metering discharge component includes a material guiding pipe fixedly communicated with the storage box for conducting polymer particles, and the material guiding pipe is located above the screening filter screen. A weighing bucket for temporarily storing and weighing the weight of polymer particles is fixedly communicated with the lower part of the material guiding pipe, and a feeding pipe is fixedly communicated between the weighing bucket and the storage barrel.

[0021] An automatic feeding method for polymer material molding, which is used for the automatic feeding device for polymer material molding described above, includes the following steps:

[0022] S1. Pour the polymer particle material into the storage component through the feeding component for storage;

[0023] S2. When the polymer particle material is fed, color sorting screening is realized according to color difference after color sorting by the color sorting component;

[0024] S3. During the color sorting screening process, the removal of broken slag is realized through the cooperation of the slag removal component;

[0025] S4. The vibration screening of polymer particles is realized through the cooperation of the vibration component, and quantitative feeding is realized while vibrating in cooperation with the metering discharge component.

[0026] The present invention provides an automatic feeding device and method for polymer material molding. It has the following beneficial effects:

[0027] 1. When this automatic feeding device feeds polymer particle materials, through the cooperation of the feeding hopper, the conduction box and the material distribution box, it can realize the rapid feeding and polymerization arrangement of polymer particles, effectively improve the feeding efficiency of polymer particles, and at the same time facilitate the subsequent color sorting of polymer particles.

[0028] 2. When this automatic feeding device feeds polymer particle materials, during the feeding process of polymer particles, through the visual recognition of two color vision sensors, the color of polymer particles can be recognized, and different colored polymer particles can be knocked out through the cooperation of multiple impact screening plates to realize the independent storage of polymer particles of different colors.

[0029] 3. When this automatic feeding device feeds polymer particle materials, during the color sorting process, by adopting the method of wind adsorption, not only can the dust in the polymer particles be sucked out, but also the polymer particles broken during impact color sorting can be sucked out, which can avoid the mixing of broken polymer particles and intact polymer particles and affect the molding quality.

[0030] 4. When this automatic feeding device feeds polymer particle materials, by adopting the method of vibrating discharging, not only can the discharging efficiency of polymer particles be improved, but also the screening efficiency of polymer particles can be accelerated during vibration, avoiding the blockage of the screening filter screen and improving the screening effect of good and defective polymer particles.

[0031] 5. When this automatic feeding device feeds polymer particle materials, by adopting the method of automatic weighing with a weighing bucket, the weight of the fed polymer particles can be accurately weighed during the feeding of polymer particles, realizing the accurate feeding of polymer particles and higher automation.

[0032] In summary, the present invention can realize the color sorting and screening of good and defective products of polymer particles during the feeding process, realize the independent storage of polymer particles of different colors, realize the recovery of dust and broken particles during the color sorting process, and can realize the accurate metering and feeding of polymer particles, with higher automation.

[0033] Other features and advantages of the present invention will be described in the subsequent specification, and part of them will become obvious from the specification or be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in the written specification and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The following further elaborates on the specific implementation manners of the present invention in conjunction with the drawings, where:

[0035] Figure 1Structural schematic diagram of an automatic feeding device for polymer material forming proposed by the present invention;

[0036] Figure 2 It is Figure 1 Structural schematic diagram after rotating a certain angle;

[0037] Figure 3 It is Figure 2 Front view of the internal structure of the middle storage bin;

[0038] Figure 4 It is Figure 3 Stereo schematic diagram of the internal structure of the middle storage bin;

[0039] Figure 5 Structural schematic diagram of the sorting unit in the present invention;

[0040] Figure 6 It is Figure 5 Structural schematic diagram of the internal structures of the middle conduction box and the material distribution box;

[0041] Figure 7 It is Figure 6 Front view of the side part of

[0042] Figure 8 It is Figure 7 Structural schematic diagram of the internal structures of the material distribution box and the air guiding round box in

[0043] Figure 9 Structural schematic diagram of the striking component in the present invention;

[0044] Figure 10 Structural schematic diagram of the feeding unit in the present invention;

[0045] Figure 11 It is Figure 10 Structural schematic diagram of two storage bins and a servo motor in

[0046] Figure 12 It is Figure 11 Enlarged view of the node at part A in

[0047] Figure 13 It is Figure 12 Structural schematic diagram of the linkage folding rod and the lifting vibration rod in

[0048] Figure 14 Upper structural schematic diagram of the servo motor in the present invention.

[0049] In the figure: 1 support frame, 2 storage barrel, 3 feed hopper, 4 servo motor, 5 feeding pipe, 6 partition plate, 7 storage box, 8 guide pipe, 9 weighing barrel, 10 conduction box, 11 material distribution box, 12 discharge square pipe, 13 discharge secondary pipe, 14 slag removal square pipe, 15 driving roller, 16 air induction round box, 17 air supplement hole, 18 material distribution triangular plate, 19 fixing plate, 20 color vision sensor, 21 impurity suction box, 22 barrier plate, 23 air impeller, 24 slag blocking hole, 25 impact screening plate, 26 swing wheel, 27 receiving opening, 28 screening filter screen, 29 linkage folding rod, 30 lifting vibration rod, 31 one-way bearing one, 32 incomplete gear, 33 vibration tooth plate, 34 vibration spring, 35 electromagnetic clamping part, 36 electromagnetic clamping block, 37 one-way bearing two. Detailed implementation mode

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0051] Embodiment 1: Refer to Figures 1-3 , an automatic feeding device for polymer material molding, including a storage barrel 2 arranged on a support frame 1 for realizing the feeding and storage of polymer particle materials. The whole process of sorting, storing and feeding of polymer particles is realized in the storage barrel 2, and no external leakage of dust will occur.

[0052] This automatic feeding device further includes:

[0053] A sorting unit, arranged in the storage barrel 2, for realizing the feeding and color sorting of polymer particles, and cleaning the broken slag during the color sorting process. During the feeding process of polymer particles, independent storage of polymer particles of different colors is realized, and at the same time, the dust in the polymer particles and the broken polymer particles generated during color sorting are sucked out;

[0054] A feeding unit, arranged in the storage barrel 2, for realizing the storage and quantitative feeding of polymer particles, capable of effectively screening the good products and defective products of polymer particles, avoiding blockage at the same time, and realizing the accurate feeding of polymer particles;

[0055] A control console is arranged on the support frame 1, and the control console cooperates with the sorting unit and the feeding unit to realize the programmed operation of the sorting unit and the feeding unit, realize the automatic feeding of polymer particles, and the automation degree is higher.

[0056] Embodiment 2: Refer to Figures 3-9, The different technical solution of this embodiment compared with the first embodiment is that: the sorting unit includes a feeding component, a color sorting component and a slag removal component. The feeding component is used to convey polymer particles into the color sorting component for sorting and discharging, and remove slag through the slag removal component during the color sorting process;

[0057] A partition plate 6 for separation is arranged in the storage barrel 2. The partition plate 6 plays a role in separating the interior of the storage barrel 2, realizing partitioned feeding, and avoiding the diffused dust generated during the feeding of polymer particles on the left from affecting the space on the right side of the storage barrel 2;

[0058] The feeding component includes a feeding hopper 3 fixedly installed on the storage barrel 2 for feeding polymer particles. A conduction box 10 is fixedly arranged in the storage barrel 2, and the conduction box 10 is communicated with the feeding hopper 3. A distribution box 11 is fixedly arranged in the storage barrel 2, and the distribution box 11 is communicated with the lower part of the conduction box 10;

[0059] The polymer particles are poured into the conduction box 10 through the feeding hopper 3, conducted to the distribution box 11 through the conduction box 10, and exported after being sorted by the color sorting component in the distribution box 11, realizing the automatic conduction and discharging of polymer particles.

[0060] In a further embodiment, the color sorting component includes two symmetric color sensors 20 fixedly arranged in the conduction box 10. The two color sensors 20 are used to identify the colors of polymer particles. A fixed plate 19 is fixedly installed in the distribution box 11, and a controller matched with the color sensors 20 is arranged in the fixed plate 19;

[0061] As shown in the attached Figure 7 When the polymer particles fall through the conduction box 10, they will pass between the two color sensors 20 inside the conduction box 10 while falling. At this time, the color sensors 20 will identify the colors of multiple polymer particles, that is, accurately identify the color of each polymer particle, classify them into dark color systems and light color systems, and at the same time transmit the identified color results to the controller for recording.

[0062] A plurality of micro motors are arranged in the fixed plate 19, and a swing wheel 26 is fixedly installed on the driving end of each micro motor. A striking and screening plate 25 for picking and hitting polymer particles is fixedly installed at the lower part of each swing wheel 26;

[0063] The controller will record the color and the vertical position of each polymer particle during its fall. When the polymer particle passes through the conduction box 10 and reaches the horizontal position of the fixed plate 19, the micro-motor at the corresponding position inside the fixed plate 19 will be activated at this time, thereby driving the swing wheel 26 to rotate. When the swing wheel 26 rotates, it will drive the corresponding striking and screening plate 25 below it to rotate and strike the vertically falling polymer particles of different colors, thereby knocking the polymer particles of different colors away and completing the color sorting of the polymer particles.

[0064] The color vision sensor 20 is a device capable of detecting the surface color of an object and is a device commonly used in the prior art to detect and identify the color of materials. When applied in this application document, it is used to detect and identify the color of polymer particles. This part is the prior art and will not be elaborated here.

[0065] Example: If the overall number of polymer particles to be fed is mostly light-colored and few are dark-colored, at this time, it is specified that when feeding the polymer particles, the light-colored polymer particles with a large number fall vertically for collection, while the small number of dark-colored polymer particles are separated. At this time, the color vision sensor 20 will identify and mark the position of the small number of dark-colored polymer particles, and while falling, through the control of the controller and multiple micro-motors, drive multiple striking and screening plates 25 to rotate to accurately knock out the small number of dark-colored polymer particles in the polymer particles, separating them from the light-colored polymer particles, and thus completing the color sorting of the polymer particles.

[0066] In a further embodiment, a servo motor 4 is provided outside the support frame 1, and a driving roller 15 is rotatably installed between the driving end of the servo motor 4 and the storage bucket 2. When the servo motor 4 is started, it will drive the driving roller 15 to rotate.

[0067] The slag removal assembly includes an air guiding circular box 16 fixedly installed inside the storage bucket 2, and the air guiding circular box 16 is rotatably connected to the driving roller 15. A wind impeller 23 is arranged on the driving roller 15 through a one-way bearing two 37, and the one-way bearing two 37 is matched with the forward rotation of the driving roller 15, and the wind impeller 23 is located inside the air guiding circular box 16. An exhaust pipe for exhausting gas is arranged between the air guiding circular box 16 and the storage bucket 2. A barrier plate 22 is fixedly installed inside the air guiding circular box 16, and a plurality of slag blocking holes 24 are opened on the barrier plate 22. Two impurity suction boxes 21 for adsorbing broken slag are fixedly communicated between the air guiding circular box 16 and the material distribution box 11.

[0068] When the servo motor 4 drives the driving roller 15 to rotate forward, it will drive the one-way bearing two 37 to rotate at this time, thereby driving the wind impeller 23 to rotate. When the wind impeller 23 rotates, it will suck air through the slag blocking holes 24 on the barrier plate 22, and then suck air into the interior of the material distribution box 11 through the two impurity suction boxes 21.

[0069] When the polymer particles fall during feeding, a certain amount of dust will be generated. At the same time, when the screening plate 25 strikes the polymer particles, some polymer particles with weak adhesion will be broken, resulting in broken polymer particle scraps. At this time, while the dust suction box 21 sucks air, it can simultaneously suck out the polymer particle scraps and dust in the material distribution box 11, preventing the dust and scraps from mixing in the intact polymer particles and affecting the subsequent molding quality of the polymer particles.

[0070] A plurality of air supplement holes 17 for air supplement are provided on the material distribution box 11. The air supplement holes 17 are used to supplement air into the interior of the material distribution box 11 to prevent the internal air pressure from being insufficient when the material distribution box 11 sucks air.

[0071] A slag removal square pipe 14 for slag discharge is provided between the air induction circular box 16 and the storage barrel 2. The dust and scraps sucked by the dust suction box 21 will be blocked by the blocking disc 22 and thus fall to the bottom of the air induction circular box 16. Then, after the feeding of the polymer particles is completed, the sucked waste slag can be cleaned through the slag removal square pipe 14.

[0072] Example Three: Refer to Figures 3-4 and Figures 10-14 , the different technical solutions of this example compared with Example Two are as follows: The feeding unit includes a storage component, a vibration component and a metering and discharging component. The storage component is used to store the polymer particles. The vibration component cooperates with the metering and discharging component to achieve the quantitative discharging of the polymer particles and prevent accumulation and blockage during discharging.

[0073] The storage component includes two discharging square pipes 12 fixedly connected to the lower part of the material distribution box 11. A material distribution triangular plate 18 is fixedly installed in the material distribution box 11. The material distribution triangular plate 18 plays a blocking role to prevent the polymer particles of different colors from being mixed again after separation.

[0074] The two discharging square pipes 12 are respectively located on both sides of the material distribution triangular plate 18. Two storage boxes 7 are arranged in the storage barrel 2, and receiving openings 27 matching the corresponding discharging square pipes 12 are provided on both storage boxes 7.

[0075] When the polymer particles fall during feeding, the light-colored polymer particles with a large quantity will directly fall and be led out through the left discharging square pipe 12, while the dark-colored polymer particles with a small quantity will fall to the right side of the material distribution box 11 after being struck and thus be led out through the right discharging square pipe 12, so as to realize the separate leading-out and collection of the light-colored polymer particles and the dark-colored polymer particles.

[0076] The polymer particles led out through the discharging square pipe 12 will fall vertically and fall into the storage box 7 through the receiving opening 27 on the storage box 7, thus completing the collection of the polymer particles.

[0077] In a further embodiment, the vibration assembly includes a screening filter screen 28 slidably mounted in the storage box 7 for screening polymer particles. The screening filter screen 28 is inclined. A discharge secondary pipe 13 for discharging defective products is fixedly communicated with the lower part of the storage box 7. The screening filter screen 28 is used for screening polymer particles, so that the defective products with smaller volume in the polymer particles and the remaining dust and debris mixed in the polymer particles can pass through the screening filter screen 28 and fall to the bottom of the storage box 7 for collection, and finally be exported through the discharge secondary pipe 13 for reprocessing. The qualified polymer particles will remain on the upper part of the screening filter screen 28, thus completing the screening of qualified and defective polymer particles.

[0078] An incomplete gear 32 is arranged on the driving roller 15 through a one-way bearing 31. A support plate is fixedly installed in the storage barrel 2, and a vibration tooth plate 33 cooperating with the incomplete gear 32 is arranged on the support plate through two vibration springs 34. A linkage mechanism is installed between the vibration tooth plate 33 and the screening filter screen 28. A discharge secondary pipe 13 for discharging defective products is fixedly communicated with the lower part of the storage box 7;

[0079] When the servo motor 4 starts and drives the driving roller 15 to rotate in the reverse direction, at this time, the incomplete gear 32 will be driven to rotate under the cooperation of the one-way bearing 31. And since the incomplete gear 32 cooperates with the vibration tooth plate 33, when the incomplete gear 32 rotates to mesh with the vibration tooth plate 33, the vibration tooth plate 33 will be driven to move downward and simultaneously compress the lower vibration spring 34. When the incomplete gear 32 rotates to not mesh with the vibration tooth plate 33, at this time, the vibration tooth plate 33 will rise and reset under the elastic return of the vibration spring 34. When the incomplete gear 32 continues to mesh with the vibration tooth plate 33, the vibration tooth plate 33 continues to move downward. When the incomplete gear 32 rotates repeatedly, the reciprocating and uninterrupted vertical lifting vibration of the vibration tooth plate 33 can be realized.

[0080] The linkage mechanism includes a linkage folding rod 29 fixedly installed on the vibration tooth plate 33. A lifting vibration rod 30 is fixedly installed on the screening filter screen 28. An electromagnetic chuck 36 is fixedly installed on the lifting vibration rod 30, and an electromagnetic clamping part 35 cooperating with the electromagnetic chuck 36 is fixedly installed on the linkage folding rod 29;

[0081] When the vibration tooth plate 33 moves up and down, it will drive the linkage folding rod 29 on it to move up and down. When the polymer particles in the left storage box 7 need to be vibrated and discharged, at this time, the electromagnetic chuck 36 and the electromagnetic clamping part 35 on the left will be started and electrified, that is, at this time, the electromagnetic chuck 36 on the left will be clamped and adsorbed in the electromagnetic clamping part 35 on the left. At this time, when the linkage folding rod 29 moves up and down and vibrates, it will drive the electromagnetic clamping part 35 to move up and down and vibrate, thereby driving the electromagnetic chuck 36 to vibrate, and further driving the screening filter screen 28 to move up and down and vibrate through the lifting vibration rod 30.

[0082] In a further embodiment, when the screening filter screen 28 is lifted and vibrated, since the screening filter screen 28 is inclined, when the screening filter screen 28 vibrates, the polymer particles thereon will gradually vibrate and slide from the left side to the right side, so as to realize the automatic sliding discharge of the polymer particles. At the same time of vibrating discharge, the vibration effect of the polymer particles can also be increased, which can not only avoid the accumulation and blockage of the polymer particles, but also accelerate the screening effect of defective products and broken slag and dust inside the polymer particles.

[0083] A metering and discharging assembly is arranged on each storage box 7. The metering and discharging assembly includes a guide pipe 8 fixedly communicated with the storage box 7 for conducting polymer particles, and the guide pipe 8 is located above the screening filter screen 28. A weighing bucket 9 for temporarily storing and weighing the weight of the polymer particles is fixedly communicated with the lower part of the guide pipe 8, and a feeding pipe 5 is fixedly communicated between the weighing bucket 9 and the storage bucket 2;

[0084] When the screening filter screen 28 vibrates and screens out materials, when the good-quality polymer particles thereon slide to the rightmost side, they will fall into the guide pipe 8 and then fall into the weighing bucket 9 through the guide pipe 8. At this time, the weighing bucket 9 will accurately weigh the weight of the polymer particles. When the weighed weight reaches the discharging requirement, the guide pipe 8 is closed to stop discharging at this time, and then the feeding pipe 5 is opened to discharge the quantified polymer particles in the weighing bucket 9, realizing the precise metering and discharging of the polymer particles.

[0085] The specific feeding principle of this feeding device is as follows: Pour the polymer particles into the conduction box 10 through the feeding hopper 3. When the polymer particles fall through the conduction box 10, they will fall while passing between the two color sensors 20 inside the conduction box 10. At this time, the color sensors 20 will identify the colors of multiple polymer particles, that is, accurately identify the color of each polymer particle;

[0086] The controller will record the color and the vertical position of each polymer particle when it falls. When the polymer particle passes through the conduction box 10 and is at the horizontal position of the fixing plate 19, the corresponding micro motor inside the fixing plate 19 will be started at this time, so as to drive the swing wheel 26 to rotate. When the swing wheel 26 rotates, it will drive the corresponding striking and screening plate 25 below it to rotate and strike the polymer particles of different colors falling vertically, so as to fly the polymer particles of different colors and complete the color sorting of the polymer particles.

[0087] At the same time of color sorting, start the servo motor 4 to drive the driving roller 15 to rotate forward, and then drive the wind impeller 23 to rotate through the one-way bearing two 37. When the wind impeller 23 rotates, it will inhale air through the slag blocking holes 24 on the blocking disc 22, and then inhale air into the material distribution box 11 through the two dust suction boxes 21;

[0088] When the polymer particles fall during feeding, a certain amount of dust will be generated. At the same time, when the screening plate 25 strikes the polymer particles, some polymer particles with weak adhesion will be broken, resulting in broken polymer particle fragments. At this time, while the dust suction box 21 sucks air, it can simultaneously suck out the polymer particle fragments and dust in the material distribution box 11, preventing the dust and fragments from mixing in the intact polymer particles and affecting the subsequent molding quality of the polymer particles.

[0089] When the polymer particles fall during feeding, they will be led out through the discharge square pipe 12 and fall vertically, and fall into the storage box 7 through the receiving opening 27 on the storage box 7 to complete the collection of the polymer particles.

[0090] When feeding, start the servo motor 4 to drive the driving roller 15 to reverse, and under the cooperation of the incomplete gear 32 and the vibrating tooth plate 33, drive the linkage folding rod 29 to lift and vibrate. If the polymer particles in the left storage box 7 need to be discharged, the left linkage mechanism can be started. If the polymer particles on the right need to be discharged, the right linkage mechanism is started. If simultaneous discharge is required, both linkage mechanisms are started simultaneously.

[0091] When the linkage folding rod 29 lifts and vibrates, it drives the screening filter screen 28 to lift and vibrate under the cooperation of the linkage mechanism. When the screening filter screen 28 vibrates, the polymer particles on it will vibrate and slide from the left to the right. When the good polymer particles slide to the rightmost side, they will fall into the guide pipe 8 and then fall into the weighing bucket 9 through the guide pipe 8. At this time, the weighing bucket 9 will accurately weigh the weight of the polymer particles. When the weighed weight reaches the discharge requirement, the guide pipe 8 is closed to stop discharging, and then the feeding pipe 5 is opened to discharge the quantified polymer particles in the weighing bucket 9, realizing the accurate metering and discharging of the polymer particles.

[0092] The embodiment of the present invention also provides an automatic feeding method for polymer material molding, which is used for the above-mentioned automatic feeding device for polymer material molding, and includes the following steps:

[0093] S1. Pour the polymer particle material into the storage component through the feeding component for storage;

[0094] S2. During feeding, the polymer particle material is color-selected by the color selection component and screened according to color differences;

[0095] S3. During the color selection and screening process, the slag is removed through the cooperation of the slag removal component;

[0096] S4. The polymer particles are vibration-screened through the cooperation of the vibration component, and quantitative feeding is realized while vibrating in cooperation with the metering and discharging component.

[0097] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. An automatic feeding device for polymer material molding, comprising a storage barrel (2) arranged on a support frame (1) for feeding and storing polymer granular materials, characterized in that: Also includes: A sorting unit is arranged in the storage barrel (2) and is used to realize the feeding and color sorting of polymer particles and to clean up the debris during the color sorting process. The sorting unit comprises a feeding component, a color sorting component and a slag removal component. The feeding component is used to transport the polymer particles to the color sorting component for sorting and unloading, and the slag is removed by the slag removal component during the color sorting process. A feeding unit is arranged in the storage barrel (2) and is used to store and quantitatively feed the polymer particles. The feeding unit comprises a storage component, a vibration component and a metering and discharging component. The storage component is used to store the polymer particles. The vibration component cooperates with the metering and discharging component to quantitatively discharge the polymer particles and avoid accumulation and blockage during discharging. A servo motor (4) is disposed outside the support frame (1), and a driving roller (15) is rotatably mounted between the driving end of the servo motor (4) and the material storage barrel (2); Two material storage boxes (7) are arranged in the material storage barrel (2); the vibration assembly comprises a screening filter (28) for screening polymer particles and slidably mounted in the material storage box (7); an incomplete gear (32) is arranged on the driving roller (15) via a one-way bearing (31); a support plate is fixedly mounted in the material storage barrel (2); and a vibrating tooth plate (33) matching the incomplete gear (32) is arranged on the support plate via two vibrating springs (34); a linkage mechanism is installed between the vibrating tooth plate (33) and the screening filter (28); and a discharge square pipe (13) for discharging defective products is fixedly connected to the lower part of the material storage box (7); The linkage mechanism comprises a linkage folding rod (29) fixedly mounted on a vibrating tooth plate (33); a lifting vibration rod (30) fixedly mounted on the screening filter (28); an electromagnetic clamping block (36) fixedly mounted on the lifting vibration rod (30); and an electromagnetic clamping member (35) matched with the electromagnetic clamping block (36) fixedly mounted on the linkage folding rod (29); Each of the material storage boxes (7) is provided with a metering and discharging assembly, the metering and discharging assembly comprising a material guide tube (8) fixedly connected to the material storage box (7) for conducting polymer particles, the material guide tube (8) being located above the screening filter (28), the lower part of the material guide tube (8) being fixedly connected to a weighing barrel (9) for temporarily storing and measuring the weight of polymer particles, and a feeding tube (5) being fixedly connected between the weighing barrel (9) and the material storage barrel (2).

2. The automatic feeding device for polymer material molding according to claim 1, characterized in that: The support frame (1) is provided with a control console, which cooperates with the sorting unit and the feeding unit to realize programmed operation of the sorting unit and the feeding unit, thereby realizing automatic feeding of polymer particles.

3. The automatic feeding device for polymer material molding according to claim 1, characterized in that: A partition plate (6) for partitioning is arranged in the material storage barrel (2), the feeding assembly comprises a feeding hopper (3) fixedly mounted on the material storage barrel (2) for feeding polymer particles, a conduction box (10) is fixedly arranged in the material storage barrel (2), and the conduction box (10) is communicated with the feeding hopper (3), and a distribution box (11) is fixedly arranged in the material storage barrel (2), and the distribution box (11) is communicated with the lower part of the conduction box (10).

4. The automatic feeding device for polymer material molding according to claim 3, characterized in that: The color sorting component comprises two symmetrical color sensors (20) fixedly arranged in the conductive box (10), the two color sensors (20) being used to identify the color of the polymer particles; a fixing plate (19) is fixedly installed in the material separation box (11), and a controller matching the color sensors (20) is arranged in the fixing plate (19); A plurality of micro motors are arranged in the fixed plate (19), and a swing wheel (26) is fixedly mounted on the driving end of each micro motor, and a striking screening plate (25) for picking up and beating polymer particles is fixedly mounted on the lower part of each swing wheel (26).

5. The automatic feeding device for polymer material molding according to claim 4, characterized in that: The slag removal component comprises an air-inducing circular box (16) fixedly mounted in the material storage barrel (2), and the air-inducing circular box (16) is rotatably connected to the driving roller (15), a fan wheel (23) is arranged on the driving roller (15) via a second one-way bearing (37), and the second one-way bearing (37) cooperates with the positive rotation of the driving roller (15), and the fan wheel (23) is located in the air-inducing circular box (16), an exhaust pipe for exhausting air is arranged between the air-inducing circular box (16) and the material storage barrel (2), a blocking plate (22) is fixedly mounted in the air-inducing circular box (16), and a plurality of slag blocking holes (24) are opened on the blocking plate (22), and two impurity suction boxes (21) for absorbing slag are fixedly connected between the air-inducing circular box (16) and the material distribution box (11); The material distribution box (11) is provided with a plurality of air supply holes (17) for supplying air, and a slag removal square pipe (14) for discharging slag is provided between the air induction round box (16) and the material storage barrel (2).

6. The automatic feeding device for polymer material molding according to claim 5, characterized in that: The storage assembly comprises two material discharging square tubes (12) fixedly connected to the lower part of the material discharging box (11), a material discharging triangular plate (18) is fixedly installed in the material discharging box (11), and the two material discharging square tubes (12) are respectively located on both sides of the material discharging triangular plate (18), and the two storage boxes (7) are provided with receiving openings (27) matching with the corresponding material discharging square tubes (12).

7. An automatic feeding method for polymer material molding, used for the automatic feeding device for polymer material molding as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Pour the polymer granular material into the storage component through the feeding component for storage; S2. When feeding, the polymer granular material is color-sorted by the color sorting component and then color-sorted and screened according to the color difference; S3, during the color sorting and screening process, the slag removal component is used to remove the broken slag; S4. Vibration screening of polymer particles is achieved through the cooperation of vibration components, and quantitative feeding is achieved by cooperating with metering and discharging components while vibrating.

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