A swing feeding device for plastic granule raw materials

Abstract

The present invention provides a swing feeding device for plastic granule raw materials, which belongs to the technical field of plastic granule conveying. The invention includes a main hopper and a lower hopper. The outer wall of the main hopper is fixedly connected to a mounting box, and also includes: a swing feeding assembly, a wave anti-static assembly, and a diversion knocking assembly; with the help of a diversion cone and a diversion trough, the disadvantages of traditional feeding are changed, so that the particles are evenly stressed and dispersed in the main hopper and the lower hopper, which is beneficial to subsequent precise processing and improved product quality; through the cooperation of the diversion trough, the leakage trough and the baffle, multi-angle swing feeding is realized, so that the particles are more evenly dispersed in the lower hopper, ensuring stable and uniform feeding and improving product quality; the triangular plate contacts and vibrates with the rubber ball to unclog the leakage trough and help to break up the agglomerated particles, thereby improving feeding efficiency. Fourthly, the eddy current spring will deform during feeding, which can eliminate static electricity in the particles and break up the agglomerated particles. The triangular plate can also constrain its deformation to ensure that the particles are relatively evenly stressed.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic particle conveying, and in particular to a swing-type feeding device for plastic particle raw materials. Background Art

[0002] Plastic pellets, also known as plastic granules, are the raw materials used to store, transport, and process plastics in semi-finished form. They are also the components of plastic products. Made from a variety of raw materials through specific processes, they possess characteristics such as low specific gravity, light weight, high strength, excellent insulation, and chemical resistance. The transportation of plastic pellets is a crucial step in the production of plastic products.

[0003] Traditional plastic pellet feeding devices often have many shortcomings: most traditional feeding devices rely on simple gravity to make plastic pellets fall naturally. This method causes uneven force on pellets at different positions in the hopper. For example, pellets in the middle of the hopper are mainly affected by gravity and pressure from pellets above, while pellets close to the side walls are also affected by side wall friction and resistance, resulting in different falling speeds of pellets. They tend to fall in a local area, causing uneven feeding, which in turn affects the precise control of raw material quantity in subsequent processing links, leading to quality problems such as appearance defects and unstable performance caused by uneven distribution of raw materials. In addition, plastic pellets are prone to generate static electricity due to friction during the flow process, and traditional feeding devices lack effective static electricity elimination measures. The presence of static electricity will further aggravate the adsorption and agglomeration of pellets, which is also not conducive to uniform feeding and subsequent processing operations, and may even have an adverse effect on the normal operation and service life of the equipment.

[0004] How to invent a swing-type feeding device for plastic granule raw materials to solve these problems has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] In order to make up for the above shortcomings, the present invention provides a swing-type feeding device for plastic granule raw materials, which aims to solve the problems mentioned in the above background.

[0006] The present invention is achieved in that:

[0007] The present invention provides a swing-type feeding device for plastic granule raw materials, comprising a main hopper and a lower hopper, wherein the outer side wall of the main hopper is fixedly connected to a mounting box, the upper end of the lower hopper is fixedly connected to a mounting plate, the upper end of the lower hopper is arranged corresponding to the lower end of the main hopper, and the lower hopper is fixedly mounted on the bottom of the mounting box via the mounting plate, and further comprising:

[0008] Swinging unloading assembly: The swinging unloading assembly is arranged between the main hopper and the unloading hopper, and the swinging unloading assembly can assist in the swing unloading of plastic granule raw materials;

[0009] Wave static elimination component: The wave static elimination component is arranged inside the swing discharge component and the discharge hopper. The wave static elimination component can break up the agglomerated plastic particle raw materials and eliminate static electricity in the plastic particles;

[0010] Diverter knocking assembly: The diverter knocking assembly is arranged inside the swing discharge assembly and the discharge hopper. The diverter knocking assembly can vibrate and divert the plastic particles after static electricity is removed, and can also limit the wave static removal assembly.

[0011] Preferably, the lower side wall edge of the installation box is symmetrically provided with ear plates, the lower side wall of the ear plates is installed with installation columns, and the installation columns are fixedly installed at the hopper entrance adjacent to the injection molding machine.

[0012] Preferably, the swing blanking assembly includes a driving module, a diverter cone and a gear ring. The driving module is fixedly arranged at the bottom of the installation box, and the output end of the driving module passes through the bottom wall of the installation box. A gear is fixedly installed on the output end of the driving module located inside the installation box. The lower side of the gear ring is fixedly connected to a limiting ring. The bottom wall of the installation box is provided with a notch matching the limiting ring. The gear and the gear ring are meshed and connected, and the driving module adopts an intermittent forward and reverse drive mode.

[0013] Preferably, the gear ring is rotatably connected to the bottom wall of the installation box through a limiting ring, the lower side wall of the gear ring fits with the inner bottom wall of the installation box, the lower port of the main hopper is arranged corresponding to the gear ring, and the lower port of the main hopper fits with the upper side wall of the gear ring.

[0014] Preferably, the diversion cone is fixedly arranged on the upper side wall of the gear ring located inside the main hopper, the side wall of the diversion cone is provided with a plurality of diversion grooves, and the inner wall of the lower port of the main hopper is rotatably fitted with the lower end side wall of the diversion cone.

[0015] Preferably, adjacent diverter grooves are spaced apart, and a plurality of diverter grooves are equidistantly distributed in a ring shape along the central axis of the diverter cone, and ends of the diverter grooves pass through the side walls of the diverter cone.

[0016] Preferably, the wave static removal component includes a relay limit cylinder, a vortex spring, a grounding wire, a mounting sleeve and a mounting platform arranged on the inner top of the diversion cone cylinder. The relay limit cylinder is fixedly arranged on the inner wall of the lower hopper, the upper end of the vortex spring is fixedly connected to the mounting platform, and the lower end is fixedly connected to the relay limit cylinder. The mounting sleeve is fixedly arranged on the outer wall of the lower hopper, and a grounding wire is inserted and installed in the mounting sleeve, and the end of the grounding wire extends to the inside of the relay limit cylinder.

[0017] Preferably, the eddy current spring is composed of a nickel-plated layer and a carbon wire, the nickel-plated layer is the inner layer of the eddy current spring, and the carbon wire is the outer layer of the eddy current spring, and the eddy current spring, the relay limit cylinder and the ground wire are electrically connected.

[0018] Preferably, the diversion knocking assembly includes a baffle, a connecting rod fixedly connected to the bottom of the mounting platform, and a plurality of spring pieces fixedly connected to the inner wall of the lower hopper, the end of the spring piece is fixedly connected to a rubber ball, the side wall of the connecting rod is fixedly connected to a plurality of triangular plates, the triangular plates are provided with a plurality of leakage grooves, the baffle is symmetrically arranged, and the baffle is fixedly set at the lower end of the connecting rod.

[0019] Preferably, the triangular plate is located between the mounting platform and the baffle, the eddy current spring is located on the outside of the triangular plate, the relay limit cylinder and the middle vertex of the triangular plate are at the same height, the end of the leakage groove passes through the side wall of the triangular plate, and the multiple triangular plates and springs are distributed in a ring shape along the central axis of the connecting rod, and the triangular plate will come into contact with the rubber ball when rotating.

[0020] The beneficial effects of the present invention are:

[0021] 1. The rotation of the diverter cone and the design of the diverter trough have changed the traditional situation of uneven force and uneven distribution of particles caused by natural falling due to gravity. The particles in the main hopper are subjected to the combined effects of centrifugal force, friction and other forces, and are evenly spread toward the inner wall, reducing the difference in the resultant force on particles at different positions. They can be evenly dispersed from the main hopper to the lower hopper to avoid falling concentrated in a certain area, ensuring uniform distribution of particles on the cross section during the discharge process, laying the foundation for precise control of the raw material amount in subsequent processing, and helping to improve the consistency of product quality. For example, in the injection molding process, the mold cavity can be evenly filled, reducing product defects caused by uneven distribution of raw materials.

[0022] 2. The position and direction of the particles passing through the diverter chute and the chute will change continuously at different times, allowing them to be more evenly dispersed in the hopper. The particles that may have originally fallen from a few fixed positions and directions will now enter the hopper from many different positions and at various angles. The baffle can also change the vertical falling trajectory of the particles. The two work together to achieve swinging discharge of plastic particles at different angles, allowing the particles to be more evenly dispersed across the entire cross-section of the hopper, further avoiding excessive or insufficient accumulation of local particles, ensuring a stable and uniform supply of raw materials for subsequent processing, and effectively improving the appearance and performance quality of the product.

[0023] 3. The periodic vibration generated by the contact between the triangle plate and the rubber ball can, on the one hand, break the accumulation of particles that may block the chute, ensure the chute is unobstructed, and allow the particles to be discharged smoothly; on the other hand, it destroys the stable state of the agglomerated particles and separates them from each other, further reducing the possibility of particle adhesion and accumulation to form blockage, thereby improving the working efficiency of the feeding device and reducing the occurrence of manual cleaning or equipment shutdown maintenance due to blockage.

[0024] 4. The eddy current spring, with its good electrical conductivity and the complete conductive path formed with the relay limit cylinder and the grounding wire, can conduct static electricity into the earth the moment the particles come into contact with it, eliminating the static electricity of the particles. At the same time, the forward and reverse rotation of the diverter cone drives the pitch change of the eddy current spring, so that it can contact the particles more comprehensively, break up the agglomerated particles from multiple angles and strengths, improve the particle state during the feeding process, and allow static-free and evenly dispersed particles to smoothly enter the subsequent processing links, thereby improving the material mixing effect and processing performance and ensuring product quality stability. The structure formed by the triangular plate can restrain the eddy current spring, limiting its deformation within a relatively uniform and orderly range, avoiding excessive deformation, twisting or position displacement of the spring due to local uneven force, ensuring relatively uniform force on the particles, and helping to maintain the overall structural stability and functional effectiveness of the wave static elimination component. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of the overall structure of a swing-type feeding device for plastic granule raw materials provided by the present invention;

[0027] Figure 2 This is a schematic cross-sectional structure diagram of a main hopper and an installation box of a swing-type feeding device for plastic granule raw materials provided by the present invention;

[0028] Figure 3 This is a front cross-sectional structural diagram of a swing-type feeding device for plastic granule raw materials provided by the present invention;

[0029] Figure 4 This invention provides a swing feeding device for plastic granule raw materials. Figure 3 A in the middle is an enlarged structural diagram;

[0030] Figure 5 This is a schematic diagram of the initial state of an eddy current spring of a swing-type feeding device for plastic granule raw materials provided by the present invention;

[0031] Figure 6 This is a schematic diagram of a partial explosion structure of a swing-type feeding device for plastic granule raw materials provided by the present invention;

[0032] Figure 7 This is a schematic cross-sectional view of a partial structure of a swing-type feeding device for plastic granule raw materials provided by the present invention;

[0033] Figure 8 This is a schematic diagram of the eddy current spring structure of a drive module of a swing-type feeding device for plastic granule raw materials provided by the present invention when rotating forward;

[0034] Figure 9 This is a schematic diagram of the eddy current spring structure when the drive module of the swing-type feeding device for plastic granule raw materials provided by the present invention is reversed;

[0035] Figure 10 The present invention provides a schematic diagram of the structure of an eddy current spring in a swing-type feeding device for plastic granule raw materials.

[0036] In the figure: 1. Main hopper; 2. Mounting box; 3. Lower hopper; 4. Diverter cone; 5. Gear; 6. Triangular plate; 7. Relay limit cylinder; 8. Grounding wire; 9. Shrapnel; 21. Ear plate; 22. Mounting column; 31. Mounting plate; 41. Diverter trough; 42. Mounting platform; 43. Connecting rod; 44. Baffle; 51. Gear ring; 52. Drive module; 61. Leakage trough; 71. Eddy current spring; 81. Mounting sleeve; 91. Rubber ball; 511. Limiting ring; 711. Nickel plating; 712. Carbon wire. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 making creative efforts shall fall within the scope of protection of the present invention.

[0038] Example 1, refer to Figure 1-Figure 5 A swing-type feeding device for plastic pellet raw materials includes a main hopper 1 and a lower hopper 3. The main hopper 1 is used to store plastic pellet raw materials. The outer wall of the main hopper 1 is fixedly connected to a mounting box 2. The upper end of the lower hopper 3 is fixedly connected to a mounting plate 31. The upper end of the lower hopper 3 is arranged corresponding to the lower end of the main hopper 1. The lower hopper 3 is fixedly mounted on the bottom of the mounting box 2 through the mounting plate 31. It cooperates with the main hopper 1 to form a conveying channel for raw materials from top to bottom. The device also includes:

[0039] Swinging unloading assembly: The swinging unloading assembly is arranged between the main hopper 1 and the unloading hopper 3. The swinging unloading assembly can assist in the swing unloading of plastic granule raw materials;

[0040] Wave static elimination component: The wave static elimination component is arranged inside the swing discharge component and the discharge hopper 3. The wave static elimination component can break up the agglomerated plastic granule raw materials and eliminate static electricity in the plastic granules;

[0041] Diverter knocking assembly: The diverter knocking assembly is arranged inside the swing discharge assembly and the discharge hopper 3. The diverter knocking assembly can vibrate and divert the plastic particles after static electricity is removed, and can also limit the wave static removal assembly.

[0042] Furthermore, ear plates 21 are symmetrically provided on the edge of the lower side wall of the installation box 2, and mounting columns 22 are installed on the lower side wall of the ear plates 21. The mounting columns 22 are fixedly installed at the hopper entrance close to the injection molding machine, ensuring that the feeding device can accurately transport the plastic particle raw materials to the injection molding machine, thereby realizing a close connection between the raw material supply and subsequent processing links.

[0043] The swing unloading assembly includes a driving module 52, a diverter cone 4 and a gear ring 51. The driving module 52 is fixedly arranged at the bottom of the installation box 2. The output end of the driving module 52 passes through the bottom wall of the installation box 2. A gear 5 is fixedly installed on the output end of the driving module 52 inside the installation box 2. The lower side of the gear ring 51 is fixedly connected to the limit ring 511. The bottom wall of the installation box 2 is provided with a notch matching the limit ring 511. The gear 5 and the gear ring 51 are meshed and connected. The driving module 52 adopts an intermittent forward and reverse driving mode. This driving mode can enable the components connected thereto to achieve periodic forward and reverse movement. During the forward and reverse rotation process, the movement state of the particles is constantly changing, and it is not easy to form a blockage at the discharge port of the main hopper 1 or the diverter cone 4. When the material has a tendency to be blocked, the reversing action can make the particles move in the opposite direction, loosen the particles that may be accumulated, and readjust the distribution and flow state of the particles to ensure the continuity of the unloading process. This is especially important for some plastic particle raw materials with poor fluidity or easy adhesion, and can effectively improve the working efficiency and reliability of the feeding device.

[0044] The gear ring 51 is rotatably connected to the bottom wall of the installation box 2 through the limit ring 511, and the lower side wall of the gear ring 51 fits with the inner bottom wall of the installation box 2. The lower port of the main hopper 1 is correspondingly arranged with the gear ring 51, and the lower port of the main hopper 1 fits with the upper side wall of the gear ring 51, preventing the material from passing through the gap. The diversion cone 4 is fixedly arranged on the upper side wall of the gear ring 51 located inside the main hopper 1, and the side wall of the diversion cone 4 is provided with multiple diversion grooves 41. The inner wall of the lower port of the main hopper 1 is rotatably fitted with the lower end side wall of the diversion cone 4. Through the setting of the diversion cone 4, the plastic particles can be evenly spread to the inner wall of the main hopper 1. When the driving module 52 is running, the gear 5 will rotate accordingly, which will drive the gear ring 51 to rotate, and the gear ring 51 will drive the diversion cone 4 to rotate, and through the forward and reverse rotation of the gear ring 51, the discharging state of the plastic particle raw material at the main hopper 1 is affected, thereby realizing the function of swing discharging.

[0045] It should be noted that adjacent diverter grooves 41 are distributed at intervals, and multiple diverter grooves 41 are distributed equidistantly in a ring along the central axis of the diverter cone 4. The ends of the diverter grooves 41 pass through the side walls of the diverter cone 4. When the diverter cone 4 rotates, the plastic particles will swing downward through the diverter grooves 41. These diverter grooves 41 help to disperse the plastic particle raw materials more evenly, assisting the unloading process.

[0046] In this embodiment, when the driving module 52 starts working and operates in an intermittent forward and reverse driving mode, the gear 5 at its output end rotates accordingly. Since the gear 5 is meshed with the gear ring 51, the rotation of the gear 5 will drive the gear ring 51 to perform corresponding forward and reverse movements around the groove on the bottom wall of the installation box 2 (stable rotation is achieved through the limit ring 511).

[0047] The diverter cone 4 is fixed to the upper side wall of the gear ring 51 and is located inside the main hopper 1, so the rotation of the gear ring 51 will synchronously drive the diverter cone 4 to rotate. During the rotation of the diverter cone 4, the plastic particle raw materials in the main hopper 1 will be affected by the diverter cone 4, because the side wall of the diverter cone 4 is provided with a plurality of diverter grooves 41 which are equidistantly distributed along the central axis and the ends of which pass through the side wall. When the diverter cone 4 rotates, the particles will gradually be guided into the diverter groove 41. As the diverter cone 4 continues to rotate, the particles entering the diverter groove 41 swing downward from the diverter groove 41 under the combined action of centrifugal force and gravity. For example, in the forward rotation stage, the particles are driven by the diverter groove 41 to make circular motion in a certain direction and gradually thrown out of the groove and fall; when the driving module 52 reverses, the particles will fall from the diverter groove 41 at different angles and forces under the movement trend in the opposite direction, thereby realizing the swinging discharge process of the particles between the main hopper 1 and the lower hopper 3.

[0048] When conveying plastic pellets, traditional discharge barrels rely mainly on gravity to fall naturally due to their structural characteristics. During this process, the pellets in the middle of the hopper are mainly subject to gravity and pressure from the pellets above, while the pellets near the side walls are subject to the friction and resistance of the side walls in addition to gravity and pressure from above. This difference causes the pellets in the middle of the hopper to fall relatively quickly, while the pellets near the side walls fall more slowly, resulting in uneven distribution of the pellets in the hopper and large differences in the resultant forces acting on the pellets at different positions.

[0049] However, the diverter cone 4 in the present device changes this situation. When the diverter cone 4 is fixed on the gear ring 51 and rotates with it, a series of effects that are conducive to uniform force on the particles will be produced. First, the rotation of the diverter cone 4 causes the particles to generate centrifugal force on their surface. For particles located at different positions of the diverter cone 4, the magnitude and direction of the centrifugal force are relatively consistent, which promotes the particles to be evenly dispersed all around. For example, the particles located at the top center of the diverter cone 4 and the particles near its edge will move toward the side wall of the diverter cone 4 under the action of centrifugal force, and the movement trend and force are relatively similar.

[0050] Furthermore, since the rotation of the diverter cone 4 drives the overall movement of the particles, the mutual collision and friction between the particles are also more uniform. Unlike the traditional discharge barrel where the particles are simply piled up and fall, the particles here are constantly mixed and redistributed with each other under the action of the diverter cone 4, so that the force exerted on each particle from other particles also tends to be uniform.

[0051] In summary, through the setting of the diverter cone 4, the plastic particles can be evenly spread toward the inner wall in the main hopper 1, and the difference in the resultant force exerted on the particles at various positions is significantly reduced, thereby ensuring that the force exerted on the particles in the main hopper 1 is relatively uniform, laying a good foundation for subsequent stable and precise feeding, and helping to improve the feeding quality and efficiency of the entire feeding device, as well as the consistency and stability of subsequent processed products.

[0052] Through the rotation of the diverter cone 4 and the design of the diverter groove 41, the plastic particle raw material can be evenly dispersed from the main hopper 1 to the lower hopper 3. Compared with the traditional direct discharging method, this swinging discharging component can prevent the particles from concentrating in a certain area and falling, thereby ensuring the uniform distribution of the particles on the cross section during the discharging process, which is helpful for the precise control of the amount of raw materials in the subsequent processing process. For example, in the injection molding process, the uniform supply of raw materials can ensure the quality stability of each injection molded product and reduce product defects caused by uneven distribution of raw materials; due to the rotation of the gear ring 51 and the diverter cone 4, the flow of plastic particles in the main hopper 1 is no longer just relying on the natural accumulation and falling of gravity, but moves under the combined action of multiple forces such as centrifugal force and friction generated by the rotation. This motion state helps to separate and mix the particles from each other, avoids the agglomeration of particles due to long-term static accumulation, and allows the material to enter the lower hopper 3 in a looser and more suitable state for processing and finally be transported to subsequent processing equipment.

[0053] Example 2, refer to Figure 3-10 The wave static removal component includes a relay limit cylinder 7, an eddy current spring 71, a grounding wire 8, a mounting sleeve 81 and a mounting platform 42 arranged on the inner top of the diverter cone 4. The relay limit cylinder 7 is fixedly arranged on the inner wall of the lower hopper 3, and the upper end of the eddy current spring 71 is fixedly connected to the mounting platform 42, and the lower end is fixedly connected to the relay limit cylinder 7. This connection method enables the eddy current spring 71 to form an elastic structure in the vertical direction, and can generate corresponding actions during the operation of the device based on its own elastic characteristics, thereby interacting with the plastic particle raw material. The mounting sleeve 81 is fixedly arranged on the outer wall of the lower hopper 3, and a grounding wire 8 is inserted and installed in the mounting sleeve 81. The end of the grounding wire 8 extends to the inside of the relay limit cylinder 7. In this way, a complete grounding path is constructed to ensure that the entire wave static removal component has good conductive properties and can effectively conduct static electricity.

[0054] It should be noted that the eddy current spring 71 is composed of a nickel-plated layer 711 and a carbon wire 712. The nickel-plated layer 711 is the inner layer of the eddy current spring 71, and the carbon wire 712 is the outer layer of the eddy current spring 71. This layered structure gives the eddy current spring 71 good electrical conductivity. The nickel-plated layer 711 itself has excellent electrical conductivity and can provide a stable inner layer path for static conduction; and the carbon wire 712 also has a certain electrical conductivity, which further enhances the conductive effect of the entire spring. The two complement each other and together constitute an efficient conductive structure. The eddy current spring 71, the relay limit cylinder 7 and the connection The ground wire 8 is electrically connected. When the plastic particle raw material with static electricity contacts the eddy current spring 71 during the falling process, the static electricity charge accumulated on the plastic particles can be transmitted to the relay limit cylinder 7 and the ground wire 8 in sequence through the conductive structure of the eddy current spring 71, and finally be introduced into the earth, thereby achieving the purpose of eliminating the static electricity in the plastic particles. At the same time, when the plastic particles contact and collide with the elastic eddy current spring 71, the elastic movement of the spring will break up the agglomerated particles, so that the particles can continue to fall in a dispersed state, avoiding the influence of agglomeration on the uniformity and smoothness of the material discharge.

[0055] In this embodiment, when the plastic particles flow in the main hopper 1 and the lower hopper 3 and come into contact with the eddy current spring 71, since the surface of the particles carries electrostatic charge, and the eddy current spring 71 has good conductivity (its nickel-plated layer 711 provides a stable inner layer path, and the carbon wire 712 enhances the conductive effect), and the eddy current spring 71, the relay limit cylinder 7 and the grounding wire 8 are electrically connected to form a complete conductive path, the electrostatic charge on the particles will begin to transfer to the eddy current spring 71 at the moment of contact, and then be conducted along the spring to the relay limit cylinder 7, and then finally introduced into the ground through the grounding wire 8. For example, if the particles carry positive electrostatic charge, these charges will move to the ground end (the ground) with a lower potential under the action of the electric field force, thereby eliminating the static electricity of the particles.

[0056] When the drive module 52 operates in an intermittent forward and reverse drive mode, the gear 5 at its output end drives the gear ring 51 to rotate. Since the diverter cone 4 is fixed on the gear ring 51, the diverter cone 4 will perform forward and reverse motion synchronously therewith. Because the upper end of the eddy current spring 71 is fixedly connected to the mounting platform 42 on the top inner side of the diverter cone 4, and the lower end is fixedly connected to the relay limit cylinder 7 fixed on the inner side wall of the lower hopper 3, when the diverter cone 4 is reversed, the mounting platform 42 will move with the diverter cone 4, while the relay limit cylinder 7 remains stationary. This relative motion causes the eddy current spring 71 to be subject to different motion constraints at the upper and lower ends, thereby causing its pitch to change (refer to Figure 5 、 Figure 8 and Figure 9), for example, when the diverter cone 4 rotates forward, the mounting platform 42 drives the upper end of the eddy current spring 71 to rotate in a certain direction, while the lower end cannot rotate synchronously due to the restriction of the relay limit cylinder 7, so that the spring is stretched or compressed in that direction, and the pitch increases or decreases accordingly; when the diverter cone 4 rotates reversely, the spring will deform in the opposite direction, and the pitch changes again.

[0057] As the pitch of the eddy current spring 71 changes, its shape and spatial distribution continue to change. The spring portion that may have been in certain gaps or difficult-to-reach areas will move to a new position as the pitch changes, thereby more comprehensively contacting the plastic particles falling from the diverter trough 41. It is like a sieve that originally had a fixed shape becoming a sieve with a dynamically changing shape, which can capture more particles falling from different paths, thereby improving the processing range and efficiency of the particles. Whether it is a particle falling from the center of the diverter trough 41 or a particle falling from the edge, there is a greater chance of collision or friction with the changing eddy current spring 71, ensuring that the effects of static elimination and agglomeration breakup can act on more particles.

[0058] During the pitch change process, the relative position and tension between the various parts of the eddy current spring 71 are constantly changing. When the agglomerated particles enter the spring area, this dynamically changing spring structure can exert force on the agglomerated particles from multiple angles and strengths. For example, when the pitch increases, certain parts of the spring will form larger gaps, and the agglomerated particles may be sandwiched therein and squeezed and broken when the spring restores the pitch; when the pitch decreases, the spring as a whole becomes more compact, and the wrapping and friction effects on the agglomerated particles are enhanced, which is also conducive to breaking up the agglomerated particles into single particles or smaller particle clusters, further improving the dispersion and uniformity of the particles during the feeding process, and avoiding poor feeding or product quality problems caused by agglomeration.

[0059] Through the dual effects of static elimination and agglomeration breakup, the wave static elimination component significantly improves the state of the particles during the feeding process. The particles without static adsorption and evenly dispersed can enter the subsequent processing links more smoothly and evenly from the main hopper 1 through the feeding hopper 3. This is not only conducive to improving the feeding accuracy and stability of the feeding device itself, reducing the feeding flow fluctuation caused by unstable particle state, but also providing a more stable raw material supply for subsequent processing equipment. In subsequent processing, the evenly dispersed particles can better interact with the screw, barrel and other components of the processing equipment, thereby improving the mixing effect and processing performance of the material. For example, during the injection molding process, the plastic melt can be made more uniform, thereby improving the quality consistency of the product.

[0060] Example 3, refer to Figure 5-Figure 7The diversion knocking assembly includes a baffle 44, a connecting rod 43 fixedly connected to the bottom of the mounting platform 42, and a plurality of spring pieces 9 fixedly connected to the inner wall of the discharge hopper 3. The end of the spring piece 9 is fixedly connected to a rubber ball 91, and the side wall of the connecting rod 43 is fixedly connected to a plurality of triangular plates 6. The triangular plates 6 are provided with a plurality of groups of leakage grooves 61, which provide a channel for the passage of plastic particles and also help to divert the particles. The baffles 44 are symmetrically arranged and fixedly arranged at the lower end of the connecting rod 43. The baffles 44 can change the original vertical falling trajectory of the particles and cause them to have a certain deviation. The baffles 44 rotate with the diversion cone 4 to realize the discharge of plastic particles at different angles.

[0061] It should be noted that the triangular plate 6 is located between the mounting platform 42 and the baffle 44, the eddy current spring 71 is located on the outside of the triangular plate 6, the relay limit cylinder 7 and the middle vertex of the triangular plate 6 are at the same height, and when the eddy current spring 71 is deformed, the structure composed of multiple triangular plates 6 can constrain the eddy current spring 71 to ensure that its deformation is relatively uniform, and the end of the leakage groove 61 passes through the side wall of the triangular plate 6, and multiple triangular plates 6 and springs 9 are distributed in a ring shape along the central axis of the connecting rod 43. The triangular plate 6 will rotate accordingly with the diversion cone 4, and the triangular plate 6 will come into contact with the rubber ball 91 when it rotates, and it will move the spring 9 through the rubber ball 91. This contact is not continuous and stable, but it rotates with the triangular plate 6. The intermittent rotation of the triangle plate 6 causes the triangle plate 6 to deform accordingly due to the elasticity of the rubber ball 91 and the spring 9. At the same time, a reaction force is applied to the triangle plate 6, which hinders the rotation of the triangle plate 6 to a certain extent, thereby generating a vibration effect. On the one hand, the drain groove 61 blocked by the plastic particles can be cleaned. On the other hand, the plastic particles on and around the triangle plate 6 that are falling will also be affected by the vibration. For those particles that may be stuck or accumulated, the vibration can destroy the relative stability between them, separate the particles from each other, further break up the particles that may agglomerate, and ensure that the particles continue to fall in a more dispersed state.

[0062] In this embodiment, when the device is running, the driving module 52 starts working as a power source and operates according to the set intermittent forward and reverse driving mode. The power at its output end is transmitted through the engagement of the gear 5 and the gear ring 51, driving the diverter cone 4 and the connecting rod 43 to perform forward and reverse motion. The triangular plate 6 and the baffle 44 fixed to the lower end of the connecting rod 43 will also rotate with the rotation of the connecting rod 43.

[0063] During the rotation of the triangular plate 6, the multiple groups of leakage grooves 61 opened on it provide dispersion channels for plastic particles. Since the triangular plate 6 is in a continuous rotation state, the position and direction of the particles passing through the diverter groove 41 and the leakage groove 61 will constantly change at different times, so that they can be more evenly dispersed in the lower hopper 3. The particles that may have originally fallen from certain fixed positions and directions will now enter the lower hopper 3 from many different positions and at various angles, avoiding the accumulation of particles in local areas and achieving a wider and more uniform distribution in the cross section. This is very important for the uniform supply of raw materials in subsequent processing. For example, during injection molding, evenly dispersed particles can ensure that the mold cavity can be filled with suitable raw materials everywhere, reducing quality problems of the product due to uneven distribution of raw materials, such as inconsistent local density and uneven surface.

[0064] The baffle 44 is symmetrically arranged and rotates with the diversion cone 4. It also has an important influence on the discharge angle of the particles. The baffle 44 can change the original vertical falling trajectory of the particles, causing them to have a certain deviation. When the baffle 44 rotates, different parts of it will contact the falling particles, guiding the particles to deviate in different directions. For example, one side of the baffle 44 will push the particles to the left during the rotation process. As the baffle 44 continues to rotate, the other side will push the particles to the right, thereby realizing that the particles can be discharged at different angles in the vertical direction. Cooperating with the triangular plate 6 further enriches the angle changes of the particle discharge, allowing the particles to enter the discharge hopper 3 from more diverse angles and finally be transported to subsequent processing equipment.

[0065] By achieving swinging discharge of plastic particles at different angles, the situation in which particles fall concentratedly at a fixed angle or area is avoided. The particles can be more evenly dispersed over the cross section of the entire discharge hopper 3, making the discharge process more spatially balanced and reducing the phenomenon of excessive or insufficient accumulation of local particles. This provides a stable and uniform supply of raw materials for subsequent processing, and helps to improve the consistency of product quality. For example, in the injection molding process, uniform discharge can ensure that all parts of the mold cavity can be evenly filled, reducing product appearance defects and performance differences caused by uneven distribution of raw materials.

[0066] Feeding at different angles makes the relative movement between particles more complex and diverse. Particles are not easy to stick to each other and accumulate to form blockages during the falling process. Particles that may have been squeezed and adsorbed together due to long-term concentrated falling, due to the continuous change of feeding angle, the contact mode and force conditions between them change all the time, which is more conducive to keeping the particles in a dispersed state, reducing the risk of clogging the feeding channel, ensuring the smoothness and continuity of feeding, improving the working efficiency of the feeding device, and reducing the occurrence of manual cleaning or equipment shutdown maintenance due to blockage.

[0067] When the triangular plate 6 rotates with the rotation of the diverter cone 4, its edge will touch the rubber ball 91. Since the rubber ball 91 and the shrapnel 9 are elastic, at the moment of contact, the rubber ball 91 will be squeezed and deformed, and the shrapnel 9 will also undergo elastic deformation. This elastic deformation stores a certain amount of elastic potential energy, which will then be released to exert a reaction force on the triangular plate 6, thereby causing the triangular plate 6 to produce a vibration effect. Moreover, because the rotation of the triangular plate 6 is continuous and the contact with the rubber ball 91 is intermittent, this vibration effect will be produced continuously and periodically.

[0068] When the triangular plate 6 vibrates, the leakage groove 61 on the triangular plate 6 will also vibrate. For those plastic particles that may block the leakage groove 61, the impact force and vibration force generated by the vibration can break the blocked and accumulated state between the particles, loosen them and regain fluidity, so that they can flow along the leakage groove 61 or break away from the originally blocked position, ensuring that the leakage groove 61 always remains unobstructed, allowing plastic particles to pass smoothly for discharge; in addition, the plastic particles that are falling around the triangular plate 6 will also be affected by the vibration of the triangular plate 6. The relatively stable state of the particles that were originally adhered or accumulated will be destroyed. For example, the adsorption force and friction force between the particles in the agglomerated particles are difficult to maintain stability under the external force interference caused by the vibration, causing the particles to separate from each other, and ultimately ensuring that the particles continue to fall in a more dispersed state, thereby optimizing the particle state.

[0069] In particular, when the eddy current spring 71 is deformed due to reasons such as the operation of the device, the structure composed of multiple triangular plates 6 can play a restraining role. Since the triangular plates 6 are distributed in a ring around the connecting rod 43 and their positions are relatively fixed, their spatial positions are related to the eddy current spring 71 (the eddy current spring 71 is located on the outside of the triangular plate 6, and the relay limit cylinder 7 and the middle vertex of the triangular plate 6 are at the same height). Therefore, when the eddy current spring 71 undergoes deformation such as expansion and contraction, the triangular plate 6 forms a certain restriction on it from the periphery, so that the deformation of the eddy current spring 71 can only be carried out within a relatively uniform and orderly range, avoiding excessive deformation, twisting or position displacement of the spring due to local uneven force, ensuring that the particles are subjected to relatively uniform force, and also ensuring the normal working state of the eddy current spring 71 in the entire device and the stability of its cooperation with other components.

[0070] The vibration cleaning groove 61 is generated by the contact between the triangular plate 6 and the rubber ball 91, which effectively solves the problem that the plastic particles may clog the groove 61, ensures that the particles can be discharged continuously and stably, and also helps to break up the agglomerated particles, so that the particles are more evenly dispersed during the discharge process, which can improve the quality stability of the product and reduce product defects caused by particle agglomeration, such as the unevenness on the surface of the injection molded product due to uneven particles, and the dimensional deviation of the extruded product due to uneven distribution of raw materials, thereby improving the appearance and performance quality of the final plastic product; the restraining effect of the triangular plate 6 on the eddy current spring 71 ensures the relative uniformity of the deformation of the eddy current spring 71, ensures that the particles are relatively evenly stressed, and helps to maintain the overall structural stability and functional effectiveness of the wave static removal component.

[0071] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail. The specific model specifications of the controller and the drive module 52 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0072] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A swing feeding device for plastic pellet raw materials, comprising a main hopper and a lower hopper, wherein the outer side wall of the main hopper is fixedly connected to a mounting box, the upper end of the lower hopper is fixedly connected to a mounting plate, the upper end of the lower hopper is arranged corresponding to the lower end of the main hopper, and the lower hopper is fixedly mounted on the bottom of the mounting box via the mounting plate, characterized in that: Also includes: Swinging blanking assembly: The swinging blanking assembly is arranged between the main hopper and the blanking hopper, and the swinging blanking assembly can assist in the swinging blanking of plastic granule raw materials; the swinging blanking assembly includes a driving module, a diverter cone and a gear ring, the driving module is fixedly arranged at the bottom of the installation box, the output end of the driving module passes through the bottom wall of the installation box, and a gear is fixedly installed on the output end of the driving module inside the installation box. The lower side of the gear ring is fixedly connected to the limit ring, and the bottom wall of the installation box is provided with a notch matching the limit ring. The gear and the gear ring are meshed and connected, and the driving module adopts intermittent forward and reverse drive Mode; the gear ring is rotatably connected to the bottom wall of the installation box through a limit ring, the lower side wall of the gear ring fits with the inner bottom wall of the installation box, the lower port of the main hopper is arranged corresponding to the gear ring, and the lower port of the main hopper fits with the upper side wall of the gear ring; the diverter cone is fixedly arranged on the upper side wall of the gear ring located inside the main hopper, and the side wall of the diverter cone is provided with a plurality of diverter grooves, and the inner wall of the lower port of the main hopper is rotatably fitted with the lower end side wall of the diverter cone; adjacent diverter grooves are distributed at intervals, and a plurality of diverter grooves are equidistantly distributed in a ring along the central axis of the diverter cone, and the ends of the diverter grooves pass through the side wall of the diverter cone; The oscillating static electricity removal component is arranged inside the swinging discharge component and the discharge hopper, and the oscillating static electricity removal component can break up the agglomerated plastic particle raw materials and eliminate the static electricity in the plastic particles; the oscillating static electricity removal component includes a relay limit cylinder, a vortex spring, a grounding wire, a mounting sleeve and a mounting platform arranged on the top of the inner side of the diverter cone, the relay limit cylinder is fixedly arranged on the inner side wall of the discharge hopper, the upper end of the vortex spring is fixedly connected to the mounting platform, and the lower end is fixedly connected to the relay limit cylinder, the mounting sleeve is fixedly arranged on the outer side wall of the discharge hopper, and a grounding wire is inserted and installed in the mounting sleeve, and the end of the grounding wire extends to the inside of the relay limit cylinder; the vortex spring is composed of a nickel-plated layer and a carbon wire, the nickel-plated layer is the inner layer of the vortex spring, and the carbon wire is the outer layer of the vortex spring, and the vortex spring, the relay limit cylinder and the grounding wire are electrically connected; Diverter knocking assembly: the diverter knocking assembly is arranged inside the swinging discharge assembly and the discharge hopper, the diverter knocking assembly can vibrate and divert the plastic particles after static electricity is removed, and can also limit the fluctuating static electricity removal assembly; the diverter knocking assembly includes a baffle, a connecting rod fixedly connected to the bottom of the mounting platform, and a plurality of spring pieces fixedly connected to the inner wall of the discharge hopper, the end of the spring piece is fixedly connected to a rubber ball, the side wall of the connecting rod is fixedly connected to a plurality of triangular plates, and a plurality of groups of leakage grooves are provided on the triangular plate, the baffle is symmetrically arranged, and the baffle is fixedly set at the lower end of the connecting rod; the triangular plate is located between the mounting platform and the baffle, the eddy current spring is located on the outside of the triangular plate, the relay limit cylinder and the middle vertex of the triangular plate are at the same height, the end of the leakage groove passes through the side wall of the triangular plate, and the plurality of triangular plates and spring pieces are distributed in a ring shape along the central axis of the connecting rod, and the triangular plate will come into contact with the rubber ball when it rotates.

2. A swing feeding device for plastic granule raw materials according to claim 1, characterized in that: The lower side wall edge of the installation box is symmetrically provided with ear plates, and the lower side wall of the ear plates is installed with installation columns, and the installation columns are fixedly installed at the hopper entrance adjacent to the injection molding machine.

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