A mixing bin for processing polyetheretherketone plastic particles

Abstract

The present invention discloses a mixing bin for processing polyetheretherketone plastic particles, which belongs to the technical field of mixing equipment. The mixing bin for processing polyetheretherketone plastic particles comprises a tank body, a top cover and a stirring piece. The top cover and the stirring piece are respectively arranged at the top and bottom ends of the tank body. A discharge pipe is penetrated through the lower edge of the circumferential side wall of the tank body. A feed pipe is arranged on the top cover just above the discharge pipe. A relay piece is arranged on the inner side of the tank body between the discharge pipe and the top cover. A coupling is arranged between the relay piece and the stirring piece. The stirring piece can drive the relay piece to rotate through the coupling. The relay piece rotates to the position of the discharge pipe when mixing and seals the tank body to prevent odor from overflowing. When the tank body is discharging materials, the relay piece rotates to stagger the position of the discharge pipe and pushes the top cover up to balance the air pressure to ensure smooth discharge. The relay piece will continuously absorb the metal powder generated when each metal component is worn to ensure the purity of the plastic component.

Description

Technical Field

[0001] The invention belongs to the technical field of mixing equipment, and in particular relates to a mixing bin used for processing polyetheretherketone plastic particles. Background Art

[0002] Polyetheretherketone plastic has physical and chemical properties such as high temperature resistance and chemical corrosion resistance. It is a type of semi-crystalline polymer material. Before injection molding, various modifiers or molding aids need to be added to ensure the strength, plasticity or other functions of the plastic. When adding, the various components are stirred and mixed in a mixing bin and then transported to a storage tank for temporary storage.

[0003] In the Chinese patent with publication number CN212440914U, a deodorizing and enhancing mixing bin is mentioned. An odor adsorbing part is installed in the bin body. During the mixing process, various odors generated by the plastic raw materials are adsorbed and then absorbed by the absorbent sponge to ensure maximum removal of odors.

[0004] In actual use, blades are used to stir and mix the materials in a fixed silo. The high-speed rotating blades will cause the materials to be thrown and rotated at high speed. The materials and the lower surface of the odor absorber above will quickly rub against each other, causing the odor absorber to be quickly worn or even broken and fall into the material, introducing foreign matter into the material and affecting the purity of the material. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the disadvantages of the prior art and provide a mixing bin for processing polyetheretherketone plastic particles.

[0006] The technical solution adopted to solve the above technical problems is:

[0007] A mixing bin for processing polyetheretherketone plastic particles, comprising a tank body, a top cover and a stirring piece, wherein the top cover and the stirring piece are respectively arranged at the top and bottom ends of the tank body, a discharge pipe is penetrated through the lower edge of the circumferential side wall of the tank body, a feed pipe is arranged on the top cover just above the discharge pipe, a relay piece is arranged inside the tank body between the discharge pipe and the top cover, and a coupling is arranged between the relay piece and the stirring piece;

[0008] The coupling comprises a housing, a permanent magnet and a connecting sleeve, wherein the permanent magnet is fixedly connected to the relay member through the connecting sleeve, and the stirring member comprises a central shaft and a sliding sleeve, wherein the sliding sleeve is slidably engaged with the central shaft along the axis, and when the sliding sleeve moves upward, the relay member is engaged with the central shaft;

[0009] The top cover includes an outer ring and a top plate overlapped on the top of the outer ring. The outer ring is located directly above the discharge pipe and a middle block is installed thereon. A lining strip is fixedly installed on the bottom of the top plate directly opposite the middle block. The relay is located at the middle block to seal the tank body. The relay rotates to contact the bottom surface of the lining strip to push the top plate upward to open it.

[0010] Furthermore, the coupling also includes a bracket, which is slidably plugged into the connecting sleeve, and the bracket is provided with a pin rod at the circumferential side wall, and the connecting sleeve is provided with a tooth groove corresponding to the pin rod. The circumferential inner wall of the shell is provided with a vertical groove and annular groove that cooperate with the pin rod, and a wedge head is provided at the connection between the vertical groove and the annular groove.

[0011] Furthermore, the stirring element also includes an electromagnet, which is sleeved and installed on the outside of the sliding sleeve. A tension spring is fixedly installed on the bottom of the electromagnet, and the bottom end of the tension spring is fixedly connected to the inner wall of the bottom end of the shell.

[0012] Furthermore, a compression spring is fixedly installed on the top of the rack, the top of the compression spring is fixedly connected to the top inner wall of the shell, an angle sensor is horizontally fixed through the corresponding annular groove of the shell, and a detection gap is formed between the end of the angle sensor and the circumferential outer wall of the pin rod.

[0013] Furthermore, a wear-resistant ring is fixedly installed on the bottom surface of the permanent magnet, a convex ring is horizontally extended in the middle of the sliding sleeve, the bottom surface of the wear-resistant ring and the top surface of the convex ring are parallel to each other, a through hole cooperating with the plug-in bracket is opened in the middle of the wear-resistant ring, and the length of the bottom end of the plug-in bracket protruding from the bottom surface of the wear-resistant ring is greater than the length of the pin rod.

[0014] Furthermore, the relay component includes a folding plate, which extends upward to the top edge of the tank body, and a triangular plate is installed at the bending position of the folding plate. An inclined frustum is installed on the vertical side wall of the triangular plate. The axial direction of the inclined frustum is inclined away from one side of the triangular plate, and the side surface of the inclined frustum is arranged higher than the top surface of the triangular plate. The inclined frustum is provided with a material passing groove at the bending position of the folding plate, and the bottom surface of the inclined frustum is flush with the bottom surface of the folding plate.

[0015] Furthermore, the top cover also includes a limit frame, a sliding hole is opened on the upper part of the limit frame, a sliding pin is vertically slidably installed in the sliding hole, a support ear is fixedly installed on the end of the sliding pin, and the support ear is fixedly connected to the top plate, the lowest point of the bottom surface of the lining strip is located at the limit frame, and the highest point of the bottom surface of the lining strip is higher than the top surface of the relay.

[0016] Furthermore, a circular hole is provided on the upper portion of the limiting frame at the top end of the sliding hole, the inner diameter of the sliding hole is larger than the width of the sliding pin and smaller than the height of the sliding pin, and the inner diameter of the circular hole is larger than the height of the sliding pin.

[0017] Furthermore, the top cover also includes a mesh plate, which is arranged close to the middle block, the top of the mesh plate is fixedly connected to the top plate, and the outer wall of the mesh plate facing the middle block is in sliding contact with the outer wall of the outer ring circumference.

[0018] Furthermore, the stirring element also includes a horizontal stirring rod, which is stacked up and down and fixed on the circumferential side wall of the central axis. A vertical plate is installed on the bottom surface of the stirring rod located at the bottom layer. A motor is installed on one side of the tank body, and a synchronous wheel is installed at the bottom end of the central axis. The motor is meshed with the synchronous wheel through a synchronous belt.

[0019] Through the above technical solution, the beneficial effects of the present invention are as follows:

[0020] (1) The present invention sets a relay, and a coupling is set between the relay and the stirring element. The stirring element can drive the relay to rotate through the coupling. When stirring the mixed material, the relay rotates to the position of the discharge pipe and seals the tank body to prevent odor from overflowing. When the tank body is discharged, the relay rotates to stagger the position of the discharge pipe and pushes the top cover to balance the air pressure to ensure smooth discharge. The relay will continuously absorb the metal powder generated by the wear of each metal component to ensure the purity of the plastic component.

[0021] (2) The present invention optimizes the coupling. When the relay part needs to rotate, the permanent magnet drives the sliding sleeve and the bracket upward, and the friction force generated by pressing the permanent magnet causes the relay part to rotate with the central axis to achieve power transmission. After the relay part rotates into place, the bracket moves downward to lock the outer shell and the connecting sleeve with each other to fix the position of the relay part. The downward movement of the bracket is accelerated by the compression spring to achieve rapid locking, thereby ensuring that the relay part rotates quickly and is positioned stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a first perspective structural diagram of the present invention;

[0023] Figure 2 The position diagram of the tank body, the top cover, the intermediate member and the stirring member of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 3 It is a schematic diagram of the position of the relay member when the tank body and the top cover of the present invention are in a sealed state;

[0025] Figure 4 The position diagram of the tank body, the top cover, the intermediate member and the stirring member of the present invention is shown in FIG. Figure 2 ;

[0026] Figure 5 It is a schematic diagram of the position of the relay member when the tank body and the top cover of the present invention are opened;

[0027] Figure 6 It is a schematic diagram of the disassembly of the top cover of the present invention;

[0028] Figure 7 is an enlarged schematic diagram of the relay element of the present invention;

[0029] Figure 8 It is a disassembled schematic diagram of the coupling of the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the coupling of the present invention when it is separated from the rotating shaft;

[0031] Fig.10 It is a schematic structural diagram of the coupling of the present invention and the rotating shaft in a meshing state.

[0032] 1. The tank body; 2. The top cover; 21. The top plate; 22. The lining strip; 23. The outer ring; 24. The middle block; 25. The mesh plate; 26. The limit frame; 27. The sliding pin; 28. The support ear; 3. The feed pipe; 4. The discharge pipe; 5. The stirring member; 51. The middle shaft; 52. The sliding sleeve; 53. The tension spring; 54. The electromagnet; 6. The relay member; 61. The inclined frustum; 62. The triangular plate; 63. The folding plate; 64. The feed chute; 7. The vertical plate; 8. The coupling; 81. The outer shell; 82. The connecting sleeve; 83. The permanent magnet; 84. The tooth groove; 85. The compression spring; 86. The rack; 87. The pin rod; 88. The vertical groove; 89. The ring groove; 891. The wedge head; 9. The angle sensor. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] like Figure 1-Figure 10 As shown, the present embodiment provides a mixing bin for processing polyetheretherketone plastic particles, including a tank body 1, a top cover 2 is arranged at the top opening position of the tank body 1, the opening of the tank body 1 is opened or sealed, a discharge pipe 4 is penetrated at the lower edge of the circumferential side wall of the tank body 1, for discharging the material inside the tank body 1 from the bottom, a feed pipe 3 is arranged on the top cover 2 just above the discharge pipe 4, the feed pipe 3 inputs the plastic raw materials, modifiers and additives to be mixed into the tank body 1, and the components required for the preparation of polyetheretherketone plastics, such as plastic raw materials, modifiers and additives, are input into the tank body 1. When in use, a stirring member 5 penetrates the side wall of the bottom end of the tank body 1 and is arranged on the inner side of the tank body 1, a horizontal stirring rod is arranged on the top of the stirring member 5, and the stirring rod is stacked up and down and fixed on the circumferential side wall of the central axis 51, so as to stir and mix the materials in layers so as to be evenly dispersed, thereby ensuring that the plastic particles subsequently injected and molded are uniform in texture and reliable in quality.

[0035] The practical problem solved by this solution is how to avoid the odor of the material from escaping during the mixing process, and how to ensure that no foreign matter is introduced to ensure the purity of the material. The solution adopted is: a relay 6 is provided between the discharge pipe 4 and the top cover 2 on the inner side of the tank body 1. For details, refer to Figure 2-Figure 5 All components inside the tank body 1 are made of stainless steel, which is wear-resistant and corrosion-resistant. A coupling 8 is provided between the relay 6 and the stirring member 5. The stirring member 5 can drive the relay 6 to rotate through the coupling 8. The relay 6 rotates to the position of the discharge pipe 4 when stirring the mixing material and seals the tank body 1 to prevent the odor from overflowing. When the tank body 1 is discharging the material, the relay 6 rotates to stagger the position of the discharge pipe 4 and pushes the top cover 2 to balance the air pressure to ensure smooth discharge. The relay 6 will continuously collect the metal powder generated by the wear of each metal component to ensure the purity of the plastic component.

[0036] Because the stirring element 5 needs to rotate continuously to stir, and the relay element 6 only needs to rotate intermittently during feeding and discharging, the coupling 8 needs to be optimized, refer to Figure 8-Figure 10 The coupling 8 includes a shell 81, which is a cylindrical hollow shell and is fixed below the tank body 1 and arranged coaxially with the central axis 51. A connecting sleeve 82 is installed through the upper part of the shell 81, and a permanent magnet 83 is fixedly connected to the bottom of the connecting sleeve 82. The top of the connecting sleeve 82 is fixedly connected to the relay 6. The stirring member 5 includes a central axis 51, which is installed in the middle of the connecting sleeve 82 so that the relay 6 can rotate coaxially with the central axis 51. The central axis 51 is located below the connecting sleeve 82. A vertical spline groove is provided on the outer circumferential wall, and spline teeth are provided on the inner circumferential wall of the sleeve 52, so that the sleeve 52 can slide up and down along the axis of the central shaft 51 and rotate synchronously with the central shaft 51. When the sleeve 52 moves upward, the sleeve 52 is pressed and contacted with the bottom surface of the permanent magnet 83, and the relay 6 and the central shaft 51 rotate synchronously through the friction force. Similarly, when the sleeve 52 moves downward, the relay 6 is separated from the central shaft 51, the relay 6 stops rotating, and the central shaft 51 rotates by itself, completing intermittent transmission.

[0037] In order to achieve the sealing and opening of the tank body 1 by the relay 6, it is necessary that the relay 6 can change the position state between the discharge pipe 4, the tank body 1 and the top cover 2 when it is rotated to different positions. Figure 2-Figure 5 The top cover 2 includes an outer ring 23, which is clamped on the outer wall of the circumference of the tank body 1, and the outer ring 23 is located directly above the discharge pipe 4 and is equipped with a middle block 24. The middle block 24 can be buckled on the tank body 1 to improve the connection and prevent relative rotation. A top plate 21 is overlapped on the top of the outer ring 23. During the feeding and stirring process, refer to Figure 2 When the relay 6 is located at the middle block 24, the relay 6 will block and seal the discharge pipe 4 because the relay 6 is made of stainless steel and, Figure 3The relay 6 contacts the outer ring 23 through the middle block 24. The outer ring 23 and the relay 6 will be magnetized by the permanent magnet 83, generating magnetic attraction to the top plate 21 which is also made of stainless steel. The top plate 21 is tightly buckled on the top of the outer ring 23 to seal the top opening of the tank body 1. When the mixing is finished and the material is discharged, refer to Figure 4 The lining strip 22 is fixedly installed at the bottom of the top plate 21 facing the center block 24, and the relay 6 rotates to the position opposite to the discharge pipe 4, and the material can enter the discharge pipe 4. At this time, refer to Figure 5 , the top surface of the relay member 6 contacts the bottom surface of the lining strip 22, pushing the top plate 21 upward to open it, and the lining strip 22 opens a notch at the corresponding middle block 24. At this time, the outside air enters the tank body 1 from the notch position of the lining strip 22, so that the internal air pressure of the tank body 1 is balanced, ensuring smooth discharge;

[0038] Because the relay 6 is magnetized by the permanent magnet 83, the metal debris can be separated and collected. Figure 3 When feeding, the bottom opening of the feed pipe 3 is optimized so that the bottom opening of the feed pipe 3 is set toward the relay 6, and the lower half of the feed pipe 3 is inclined toward the relay 6. The relay 6 includes a folding plate 63, which extends upward to the top edge of the tank body 1, so that the incoming material can contact the surface of the folding plate 63 from top to bottom, and the magnetized folding plate 63 can be used to magnetically separate the metal debris entrained in the incoming material, so that the input material is purer;

[0039] When rotating and mixing, the metal debris on the surface of the folding plate 63 may be partially carried away by the impact of the material, so it is necessary to optimize the structure of the folding plate 63 to improve the capture effect of the metal debris, refer to Figure 2 and Figure 7 A triangular plate 62 is installed at the bending position of the folding plate 63, and an inclined frustum 61 is installed on the vertical side wall of the triangular plate 62. The falling material will be carried by the inclined frustum 61. During rotation, the material in the lower layer will continue to pass through the top surface of the triangular plate 62. The metal debris will sink to the lower layer due to its large dead weight, and will be attracted and captured by the bending position of the folding plate 63 and the top surface of the triangular plate 62. The side of the inclined frustum 61 is higher than the top surface of the triangular plate 62. The inclined frustum 61 is provided with a feeding trough 64 at the bending position of the folding plate 63. Therefore, the debris will be stably adsorbed in the groove due to the sinking design of the triangular plate 62, and it is not easy to be pushed out again due to the rapid rotation of the material. The normal material that cannot be attracted will leave the position of the triangular plate 62 along the feeding trough 64, making the collection of metal debris more stable.

[0040] In a further embodiment, in order to improve the discharging efficiency, after the relay member 6 rotates away from the discharging pipe 4, the stirring member 5 will continue to rotate. Figure 4, a vertical plate 7 is installed on the bottom surface of the stirring rod at the bottom layer. During stirring, the vertical plate 7 has a larger material-facing area, which makes the movement of the lower layer material more active, and squeezes and pushes the lower layer material upward to mix with the upper layer material, thereby improving the mixing efficiency. During discharging, the rotation of the vertical plate 7 generates horizontal centrifugal force, which can push the material toward the circumferential side wall of the tank body 1. While discharging, the vertical plate 7 generates a centrifugal airflow, and gas is continuously replenished into the tank body 1 at the position of the top cover 2. The gas and material in the tank body 1 are discharged from the discharge pipe 4 at the same time, and the gas inside the tank body 1 is transported to the storage tank through the discharge pipe 4. The storage tank has a large volume and can be installed with a negative pressure device The gas is discharged, and incineration or adsorption purification is performed when the storage tank is exhausted, which will not affect the normal use of the tank body 1, the discharge pipe 4 and the vertical plate 7, and avoid the overflow of odorous gas from the opened top cover 2, and prevent the factory space from having a large plastic smell. The axial direction of the inclined round table 61 is tilted away from the side of the triangular plate 62. Because the triangular plate 62 is on the right side of the discharge pipe 4 at this time, the side of the inclined round table 61 will be tilted toward the discharge pipe 4, and the rotation of the vertical plate 7 will guide the material to the discharge pipe 4 more quickly. The bottom surface of the inclined round table 61 is flush with the bottom surface of the folding plate 63, avoiding the material from entering the gap between the inclined round table 61 and the tank body 1, ensuring complete discharge;

[0041] It should be noted that in order to avoid solid debris in the incoming air, refer to Figure 6 The top cover 2 also includes a mesh plate 25, which is arc-shaped and is arranged close to the middle block 24. The top of the mesh plate 25 is fixedly connected to the top plate 21, corresponding to the notch position of the lining strip 22. When the outside air on the top cover 2 enters the tank body 1 through the notch, it will first be filtered by the mesh plate 25. In addition, the outer wall of the mesh plate 25 facing the middle block 24 is in sliding contact with the outer wall of the outer ring 23 to prevent a large amount of air from bypassing the mesh plate 25 and passing through the joint between the two, thereby ensuring stable air filtration.

[0042] In a further embodiment, after the relay member 6 stops rotating, it needs to be stationary at the stop position and cannot continue to rotate with the stirring member 5 to ensure the stability of the sealing and opening states, so the coupling 8 is optimized, referring to Figure 8-Figure 10The coupling 8 also includes a plug-in frame 86, which extends downward to form a strip-shaped structure. A vertical circular hole is provided on the connecting sleeve 82, so that the plug-in frame 86 and the connecting sleeve 82 can be slidably plugged, the plug-in frame 86 and the connecting sleeve 82 can rotate synchronously, and the plug-in frame 86 can slide up and down relative to the connecting sleeve 82. Specifically, a pin rod 87 is provided on the circumferential side wall of the plug-in frame 86, and a tooth groove 84 corresponding to the pin rod 87 is provided on the circumferential side wall of the connecting sleeve 82, so that the pin rod 87 is clamped in the tooth groove 84, the contact area is increased, and the relative position is stable. The circumferential inner wall of the shell 81 is provided with a vertical groove 88 and an annular groove 89 that cooperate with the pin rod 87. The vertical groove 88 is located below the annular groove 89 and is connected to each other. When in use, when the relay 6 needs to be rotated, refer to Fig.10 , the sliding sleeve 52 moves upward, which will push the inserting frame 86 and the pin rod 87 upward synchronously, so that the pin rod 87 is separated from the vertical groove 88 and enters the annular groove 89 position. At this time, the connecting sleeve 82 can rotate freely relative to the tank body 1 under the drive of the sliding sleeve 52. Similarly, after the relay 6 rotates, refer to Fig. 9 , the sliding sleeve 52 moves upward, the inserting frame 86 and the pin rod 87 move downward to reset, and a wedge head 891 is provided at the connection between the vertical groove 88 and the annular groove 89. The wedge head 891 is narrow at the top and wide at the bottom and is located between the two vertical grooves 88. With the hemispherical head at the bottom end of the pin rod 87, the pin rod 87 will be smoothly inserted into the vertical groove 88, locking the connecting sleeve 82 with the fixed outer shell 81, and fixing the connecting sleeve 82 with the outer shell 81, thereby ensuring the stable position of the relay 6 when it is not rotating, thereby ensuring the stable sealing of the discharge pipe 4 and the stable opening of the top cover 2.

[0043] In a further embodiment, in order to realize the up and down driving of the sliding sleeve 52, a driving structure is provided, referring to Figure 8 The stirring member 5 also includes an electromagnet 54, which is annular and is sleeved and installed on the outside of the sleeve 52 and connected to an external control device through a wire. When the electromagnet 54 is energized, the electromagnet 54 will attract the permanent magnet 83, thereby driving the sleeve 52 to move upward synchronously, so that the sleeve 52 and the permanent magnet 83 are pressed against each other and the rotational driving force is transmitted through friction. When it is necessary to disengage, the electromagnet 54 is powered off. At this time, a tension spring 53 is fixedly installed at the bottom of the electromagnet 54, and the bottom end of the tension spring 53 is fixedly connected to the inner wall of the bottom end of the shell 81. The tension spring 53 is stretched due to the upward movement of the sleeve 52. At the moment when the electromagnet 54 is powered off, the tension spring 53 rebounds and resets to make the sleeve 52 move downward, thereby completing the rapid separation from the permanent magnet 83.

[0044] It should be noted that a wear-resistant ring is fixedly installed on the bottom surface of the permanent magnet 83. At the same time, a convex ring is formed by horizontally extending in the middle of the sleeve 52. The bottom surface of the wear-resistant ring is parallel to the top surface of the convex ring, so that the sleeve 52 can stably fit with the permanent magnet 83 when the sleeve 52 moves upward. The effective contact area of ​​the bottom surface of the wear-resistant ring is large, which ensures that the power transmission is fast and stable. A through hole is opened in the middle of the wear-resistant ring to cooperate with the bracket 86, so that the lower end of the bracket 86 can pass through the wear-resistant ring. At the same time, the length of the bottom end of the bracket 86 protruding from the bottom surface of the wear-resistant ring is greater than the length of the pin rod 87. When the sleeve 52 moves upward and contacts the wear-resistant ring, the bracket 86 will be pushed upward by a distance exceeding the length of the pin rod 87. The depth of the vertical groove 88 is equal to the length of the pin rod 87, so that the pin rod 87 can be completely separated from the vertical groove 88, ensuring that the stirring member 5 can smoothly drive the relay member 6 to rotate.

[0045] In a further embodiment, in order to ensure that the relay member 6 rotates accurately, that is, the relay member 6 can be rotated to the leftmost side of the tank body 1 to stably seal the discharge pipe 4, and can also be rotated to the rightmost side of the tank body 1 to push the top cover 2 to the highest point, a specific configuration is provided, referring to Figure 6 and Figure 8 , a compression spring 85 is fixedly installed on the top of the plug-in frame 86, and the top of the compression spring 85 is fixedly connected to the inner wall of the top of the shell 81. An angle sensor 9 is fixedly passed through the corresponding annular groove 89 of the shell 81 horizontally, and a detection gap is formed between the end of the angle sensor 9 and the circumferential outer wall of the pin rod 87. When the relay 6 rotates, after the plug-in frame 86 is squeezed upward, the pin rod 87 corresponds to the position of the angle sensor 9 horizontally. The angle sensor 9 adopts a non-contact inductive sensor, which can detect the rotation angle of the relay 6 by detecting the position change of the pin rod 87. Similarly, other sensors that can detect the rotation angle of the relay 6 by the position change of the pin rod 87, such as laser distance sensors, Hall sensors, image sensors, or other types of angle detection devices and replacement solutions, can be used here as replacement solutions, which will not be described in detail here. After ensuring that the electromagnet 54 can be powered off in time after rotating to the predetermined angle, the compressed compression spring 85 will stretch and drive the plug-in frame 86 to move downward quickly, thereby completing the position locking of the relay 6.

[0046] When the relay 6 rotates to the rightmost side of the tank 1, that is, rotates 180 degrees, refer to Figure 5 and Figure 6 The relay member 6 is squeezed at the lowest point of the bottom surface of the lining strip 22, and the top plate 21 can be squeezed upward to the highest point to ensure the maximum air intake. At the same time, the highest point of the bottom surface of the lining strip 22 is set higher than the top surface of the relay member 6. The bottom surface of the lining strip 22 can be set tilted. During the sliding contact with the top surface of the relay member 6, the top plate 21 is gradually lifted to ensure that the top plate 21 moves upward smoothly.

[0047] In a further embodiment, in order to ensure smooth upward movement of the top plate 21, refer to Figure 5A support ear 28 is fixedly connected to the right side of the top plate 21, and a sliding pin 27 is connected to the right end of the support ear 28. A vertical limit frame 26 is fixedly installed on the right side of the outer ring 23. A sliding hole is opened on the upper part of the limit frame 26, and the sliding pin 27 is vertically slidably installed in the sliding hole. When the relay 6 rotates to the rightmost side of the tank body 1, the relay 6 presses the top plate 21 upward through the lining strip 22. The lowest point of the bottom surface of the lining strip 22 is located at the limit frame 26. The inner diameter of the sliding hole is greater than the width of the sliding pin 27 and less than the height of the sliding pin 27. The relay 6 is adjacent to the limit frame 26 to hold the top plate 21 The top plate 21 is then pushed upward to ensure that the sliding pin 27 with a rectangular cross-section can slide vertically upward smoothly, thereby driving the top plate 21 to move upward in a horizontal state. In addition, a circular hole is provided at the top of the sliding hole on the upper part of the limiting frame 26, and the inner diameter of the circular hole is greater than the height of the sliding pin 27. When it is necessary to clean the metal debris inside the tank body 1, the top plate 21 can be further lifted to make the sliding pin 27 move upward to the circular hole position, and the sliding pin 27 can rotate in the circular hole, thereby making the top plate 21 rotate around the limiting frame 26, and the top opening of the tank body 1 is fully opened, making subsequent maintenance more convenient.

[0048] In a further embodiment, for stable use, refer to Figure 1 and Figure 2 A frame is installed at the bottom of the tank body 1, the frame is fixed on the ground, the tank body 1 is fixed on the left side of the top of the frame, the shell 81 is fixedly connected to the frame, and a motor is installed on the frame away from the tank body 1, a synchronous wheel is installed at the bottom of the central axis 51, and the motor is meshed with the synchronous wheel through a synchronous belt to perform stable power transmission.

[0049] The working principle of this embodiment is as follows:

[0050] During the feeding stage, the electromagnet 54 is energized to drive the sliding sleeve 52 upward to be pressed against the permanent magnet 83, and the bracket 86 moves upward to separate from the shell 81 so that the central shaft 51 drives the relay 6 to rotate synchronously. When the relay 6 rotates to the leftmost side of the tank body 1, the electromagnet 54 is de-energized, and the bracket 86 moves downward to lock and fix the relay 6 and the shell 81. Different quantities of materials are input into the tank body 1 from the feeding pipe 3. The folding plate 63 is located at the outlet of the feeding pipe 3. The materials will contact the vertical surface of the upper part of the folding plate 63 from top to bottom. The permanent magnet 83 magnetizes the folding plate 63 made of stainless steel to purify the feeding magnetically, so as to prevent the metal debris entrained by the materials from entering the injection molding machine through the discharge pipe 4.

[0051] In the mixing stage, the top of the relay 6 contacts the middle block 24 at the left end of the outer ring 23, magnetizing the outer ring 23 to attract the stainless steel top plate 21 downward, sealing the top opening of the tank 1, and performing sealed stirring and mixing to prevent the material and gas from overflowing. During the stirring process, the inclined truncated table 61 cooperates with the triangular plate 62 to recycle the metal scraps in the lower layer;

[0052] During the discharging stage, the electromagnet 54 is energized again, and the relay 6 rotates to the rightmost side of the tank body 1 away from the discharging pipe 4. The top plate 21 is lifted horizontally by squeezing the bottom surface of the lining strip 22, so that outside air enters the tank body 1 to balance the air pressure inside the tank body 1. The rotation of the vertical plate 7 will generate thrust and airflow to guide the material and the gas in the tank body 1 into the next closed container to prevent the gas in the tank body 1 from escaping into the factory building. The inclined side of the inclined frustum 61 guides the material to the discharging pipe 4, and the material is discharged smoothly from the discharging pipe 4, thereby improving the discharging efficiency.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

Claims

1. A mixing bin for processing polyetheretherketone plastic particles, comprising a tank body (1), a top cover (2) and a stirring element (5), characterized in that: A discharge pipe (4) is provided through the lower edge of the circumferential side wall of the tank body (1); a feed pipe (3) is provided on the top cover (2) directly above the discharge pipe (4); a relay member (6) is provided on the inner side of the tank body (1) between the discharge pipe (4) and the top cover (2); and a coupling (8) is provided between the relay member (6) and the stirring member (5); The coupling (8) comprises a housing (81), a permanent magnet (83) and a connecting sleeve (82); the permanent magnet (83) is fixedly connected to the relay member (6) via the connecting sleeve (82); the stirring member (5) comprises a central shaft (51) and a sliding sleeve (52); the sliding sleeve (52) and the central shaft (51) are slidably engaged along the axis; the sliding sleeve (52) moves upward and downward to enable the central shaft (51) to complete intermittent rotation; the central shaft (51) drives the relay member (6) to rotate to different positions to realize opening and closing of the tank body (1); The top cover (2) comprises an outer ring (23) and a top plate (21); the outer ring (23) is provided with a middle block (24) located just above the discharge pipe (4); a lining strip (22) is fixedly provided at the bottom of the top plate (21) facing the middle block (24); when the relay (6) is located at the middle block (24), the relay (6) blocks and seals the discharge pipe (4); the relay (6) contacts the outer ring (23) through the middle block (24); the outer ring (23) and the relay (6) are magnetized by the permanent magnet (83) to generate magnetic attraction on the stainless steel top plate (21); the top plate (21) is tightly buckled on the top of the outer ring (23) to seal the top opening of the tank body (1); the relay (6) rotates to contact the bottom surface of the lining strip (22) to push the top plate (21) upward to open.

2. The mixing bin for processing polyetheretherketone plastic particles according to claim 1, characterized in that: The coupling (8) further comprises a plug-in frame (86), the plug-in frame (86) being slidably plugged with the connecting sleeve (82), a pin rod (87) being provided at the circumferential side wall of the plug-in frame (86), a tooth groove (84) corresponding to the pin rod (87) being provided at the circumferential side wall of the connecting sleeve (82), a vertical groove (88) and an annular groove (89) being provided on the circumferential inner wall of the housing (81) to cooperate with the pin rod (87), and a wedge head (891) being provided at the connection between the vertical groove (88) and the annular groove (89).

3. The mixing bin for processing polyetheretherketone plastic particles according to claim 2, characterized in that: A wear-resistant ring is fixedly mounted on the bottom surface of the permanent magnet (83), a convex ring is horizontally extended in the middle of the sliding sleeve (52), the bottom surface of the wear-resistant ring is parallel to the top surface of the convex ring, and the length of the bottom end of the plug-in bracket (86) protruding from the bottom surface of the wear-resistant ring is greater than the length of the pin rod (87).

4. The mixing bin for processing polyetheretherketone plastic particles according to claim 2, characterized in that: A compression spring (85) is fixedly mounted on the top of the inserting frame (86), the top end of the compression spring (85) is fixedly connected to the top inner wall of the outer shell (81), and an angle sensor (9) is horizontally penetrated and fixed at a position corresponding to the annular groove (89) of the outer shell (81).

5. The mixing bin for processing polyetheretherketone plastic particles according to claim 1, characterized in that: The stirring member (5) further comprises an electromagnet (54), wherein the electromagnet (54) is sleeved and mounted on the outside of the sliding sleeve (52), a tension spring (53) is fixedly mounted on the bottom of the electromagnet (54), and the bottom end of the tension spring (53) is fixedly connected to the inner wall of the bottom end of the housing (81).

6. The mixing bin for processing polyetheretherketone plastic particles according to claim 1, characterized in that: The relay member (6) comprises a folding plate (63), the folding plate (63) extending upward to the top edge of the tank body (1), a triangular plate (62) being installed at the bending position of the folding plate (63), an inclined truncated platform (61) being installed on the vertical side wall of the triangular plate (62), the axial direction of the inclined truncated platform (61) being inclined away from the side of the triangular plate (62), the side surface of the inclined truncated platform (61) being arranged higher than the top surface of the triangular plate (62), the inclined truncated platform (61) being provided with a material passing groove (64) at the bending position of the folding plate (63), and the bottom surface of the inclined truncated platform (61) being flush with the bottom surface of the folding plate (63).

7. The mixing bin for processing polyetheretherketone plastic particles according to claim 1, characterized in that: The top cover (2) further comprises a limit frame (26), a sliding hole is provided on the upper part of the limit frame (26), a sliding pin (27) is vertically slidably installed in the sliding hole, a support ear (28) is fixedly installed at the end of the sliding pin (27), and the support ear (28) is fixedly connected to the top plate (21), the lowest point of the bottom surface of the lining strip (22) is located at the limit frame (26), and the highest point of the bottom surface of the lining strip (22) is higher than the top surface of the relay (6).

8. The mixing bin for processing polyetheretherketone plastic particles according to claim 7, characterized in that: A circular hole is provided on the upper portion of the limiting frame (26) at the top end of the sliding hole, the inner diameter of the sliding hole is larger than the width of the sliding pin (27) and smaller than the height of the sliding pin (27), and the inner diameter of the circular hole is larger than the height of the sliding pin (27).

9. The mixing bin for processing polyetheretherketone plastic particles according to claim 1, characterized in that: The top cover (2) further comprises a mesh plate (25), the mesh plate (25) being arranged close to the middle block (24), the top of the mesh plate (25) being fixedly connected to the top plate (21), and the outer wall of the mesh plate (25) facing the middle block (24) being in sliding contact with the circumferential outer wall of the outer ring (23).

10. The mixing bin for processing polyetheretherketone plastic particles according to claim 1, characterized in that: The stirring member (5) further comprises horizontal stirring rods, which are stacked up and down and fixed on the circumferential side wall of the central axis (51); a vertical plate (7) is installed on the bottom surface of the stirring rod located at the bottom layer; a motor is installed on one side of the tank body (1); a synchronous wheel is installed at the bottom end of the central axis (51); and the motor is meshed with the synchronous wheel via a synchronous belt.

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