A double-screw mixer with anti-blocking function

Abstract

The present invention relates to the technical field of mixers, and proposes a double-screw mixer with an anti-blocking function, including a mixing box and a mixing rod rotatably arranged in the mixing box, which is used to mix a variety of solid materials. The mixing rod has a fixed part, and also includes: a guide column, which is arranged on the fixed part; a movable plate is slidably sleeved on the guide column, and after the mixing rod rotates, the movable plate deflects and opens toward the outside of the fixed part with the guide column as the center; a guide plate is hingedly arranged on the inner wall of the mixing box, and the bottom surface of the guide plate abuts against the movable plate. After the movable plate contacts the guide plate, the guide plate squeezes the movable plate and retracts it onto the fixed part. Through the above technical scheme, the problem that the mixer in the prior art only achieves mixing by stirring, the mixing effect is not good, and when encountering agglomerated materials, the agglomerated materials cannot be effectively dispersed, which is not conducive to the mixing of multiple materials is solved.

Description

Technical Field

[0001] The invention relates to the technical field of mixers, and in particular to a double-screw mixer with an anti-blocking function. Background Art

[0002] A mixer is a mechanical device used to mix solid, liquid or gaseous materials of different types or proportions to achieve uniform distribution. It is widely used in many industries such as chemical, pharmaceutical, food processing, plastic manufacturing, building materials, etc. The main purpose of a mixer is to ensure that the various ingredients are fully mixed.

[0003] However, the existing mixer only achieves mixing by stirring, and the mixing effect is not good. Moreover, when encountering agglomerated materials, the agglomerated materials cannot be effectively dispersed, which is not conducive to the mixing of multiple materials. Summary of the invention

[0004] The present invention proposes a double-screw mixer with an anti-blocking function, which solves the problem that the mixer in the related art only achieves mixing by stirring, the mixing effect is poor, and when encountering agglomerated materials, the agglomerated materials cannot be effectively dispersed, which is not conducive to mixing of multiple materials.

[0005] The technical solution of the present invention is as follows:

[0006] A double-screw mixer with anti-blocking function, comprising a mixing box and a mixing rod rotatably arranged in the mixing box, for mixing a plurality of solid materials, wherein the mixing rod has a fixed part, and further comprising:

[0007] A guide column, disposed on the fixing portion;

[0008] A movable plate is slidably sleeved on the guide column. After the mixing rod rotates, the movable plate deflects and opens toward the outside of the fixed part with the guide column as the center;

[0009] The material guide plate is hingedly arranged on the inner wall of the mixing box, and the bottom surface of the material guide plate abuts against the movable plate. After the movable plate contacts the material guide plate, the material guide plate squeezes the movable plate and retracts it onto the fixed part.

[0010] Optionally, the guide column has a guide groove, which is spiral-shaped; the movable plate has a mounting hole, and the mounting hole has a protrusion, which is slidably disposed in the guide groove; after the protrusion slides along the guide groove, the movable plate deflects downward along the guide column to an open state or deflects upward to a retracted state.

[0011] Optionally, also include:

[0012] An elastic member is sleeved on the guide column, one end of the elastic member abuts against the fixed portion, and the other end abuts against the movable plate. The elastic member is used to provide power for the movable plate to complete the retracted state.

[0013] Optionally, when the movable plate is in a retracted state, a first gap is provided between the movable plate and the fixed portion; the movable plate has a through slot, and the through slot is used for materials to enter the first gap, and when the movable plate is opened, the materials in the first gap are squeezed.

[0014] Optionally, the deflection angle of the movable plate is 0°-180°, and the movable plate has a shearing edge, and the shearing edge is used to disperse materials or the shearing edge is used to cooperate with the side edge of the fixed portion to shear materials.

[0015] Optionally, there are a plurality of guide plates, and the plurality of guide plates are arranged at intervals along the height direction of the inner side wall of the mixing box, and further comprising:

[0016] A connecting rod is hingedly arranged between adjacent material guide plates, a material transfer channel is formed between the side wall of the material guide plate and the inner wall of the mixing box, and the tangential direction of movement of the fixed portion close to the inner wall of the mixing box is the feeding direction of the material transfer channel;

[0017] The material guide plate has a material drop hole. After the material entering the material passage falls onto the upper surface of the material guide plate, it falls into the middle of the mixing box through the material drop hole.

[0018] Optionally, the fixed portion has a second gap from the bottom of the mixing box, and the second gap is used to provide an expansion space for the movable plate. After the mixing rod rotates, the movable plate slides and abuts against the inner bottom surface and inner side wall of the mixing box.

[0019] Optionally, also include:

[0020] An adjusting knob is rotatably arranged at the bottom of the fixing portion, and the bottom of the guide column is threadedly connected to the adjusting knob. The adjusting knob is used to adjust the extension length of the guide column and the deflection angle of the movable plate.

[0021] Optionally, the mixing box has a discharge port and further comprises:

[0022] A dust removal pipe has one end connected to the top of the mixing box and the other end extending to the discharge port. The dust removal pipe is used to guide and transport the material dust in the mixing box to the discharge port.

[0023] Optionally, also include:

[0024] An elastic auxiliary member has one end hingedly arranged on the inner wall of the mixing box and the other end hingedly arranged on the side wall of the guide plate. The elastic auxiliary member is used to assist in increasing the vibration effect of the movable plate.

[0025] The working principle and beneficial effects of the present invention are:

[0026] In the present invention, during the mixing process, the mixing rod rotates under the drive of the power device, so that the movable plate is deflected and opened toward the outside of the fixed part with the guide column as the center due to the centrifugal force, thereby increasing the area of ​​the stirring end, greatly enhancing the stirring and mixing effect, and being able to fully mix a variety of solid materials to ensure that various components are evenly distributed. At the same time, the mixing rod rotates and continuously lifts the materials, which enter the upper surface of the guide plate from the material passage, and then slide to the middle of the two mixing rods with the help of the drop holes of the guide plate, further enhancing the mixing effect, and both granular and powdered solid materials can be effectively mixed. Secondly, when the movable plate contacts the guide plate, the guide plate squeezes the movable plate back to the fixed part, generating a shearing action, which can effectively shear and break up the agglomerated materials, so that they can better participate in the mixing process. Moreover, the rotation of the mixing rod can also drive the guide plate to vibrate, which, on the one hand, prevents the materials from accumulating and clogging on the guide plate, ensuring the smooth flow and mixing of the materials, and on the other hand, assists in breaking up the agglomerated materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0028] Figure 1 It is a schematic diagram of the internal structure of the mixer of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the movable plate on the mixing rod of the present invention in a retracted state;

[0030] Figure 3 This is a schematic structural diagram of the movable plate on the mixing rod of the present invention in the first open state;

[0031] Figure 4 This is a schematic structural diagram of the movable plate on the mixing rod of the present invention in the second open state;

[0032] Figure 5 This is a schematic diagram of the internal structure of the mixer of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of the adjusting knob of the present invention;

[0034] Figure 7 It is a schematic diagram of the dust removal pipe structure of the present invention.

[0035] In the figure: 1. mixing box; 2. dust removal pipe; 3. discharge port; 4. guide plate; 401. material passing channel; 402. drop hole; 5. mixing rod; 6. fixing part; 601. first gap; 7. movable plate; 701. through groove; 702. shear edge; 703. protrusion; 704. mounting hole; 8. connecting rod; 9. second gap; 10. guide column; 1001. guide groove; 11. elastic member; 12. adjustment knob; 13. elastic auxiliary member. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0037] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0038] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0040] Reference Figure 1 to Figure 7, is an embodiment of the present invention, and proposes a double-screw mixer with anti-blocking function, including a mixing box 1 and a mixing rod 5 rotatably arranged in the mixing box 1, for mixing a variety of solid materials, the mixing rod 5 has a fixed part 6, and also includes: a guide column 10, which is arranged on the fixed part 6; a movable plate 7, which is slidably sleeved on the guide column 10, after the mixing rod 5 rotates, the movable plate 7 is deflected and opened toward the outside of the fixed part 6 with the guide column 10 as the center; a guide plate 4, which is hingedly arranged on the inner wall of the mixing box 1, and the bottom surface of the guide plate 4 is in contact with the movable plate 7. After the movable plate 7 contacts the guide plate 4, the guide plate 4 squeezes the movable plate 7 and retracts it to the fixed part 6.

[0041] In the above scheme, when the mixer starts to work, the mixing rod 5 starts to rotate under the drive of the power device. As the mixing rod 5 rotates, the movable plate 7 deflects and opens toward the outside of the fixed part 6 with the guide column 10 as the center due to the centrifugal force. At this time, the stirring end area is increased, the stirring and mixing effect is enhanced, and a variety of solid materials can be mixed more fully. The mixing rod 5 continuously lifts the material during the rotation process, and the lifted material enters the upper surface of the guide plate 4 from the material passing channel 401. Due to the rotation of the drop hole 402 of the guide plate 4 and the mixing rod 5, the material will slide along the guide plate 4 and finally fall into the middle of the two mixing rods 5, thereby enhancing the mixing effect.

[0042] When the movable plate 7 contacts the guide plate 4, during the contact process, the guide plate 4 squeezes the movable plate 7 so that the movable plate 7 is retracted onto the fixed part 6. The relative movement of the movable plate 7 and the fixed plate is achieved, and a shearing action is generated. This shearing action can effectively shear and break up the agglomerated materials so that they can better participate in the mixing process. At the same time, the mixing rod 5 can also drive the guide plate 4 to vibrate during the rotation process. This vibration effect helps prevent the accumulation and blockage of materials on the guide plate 4, ensures the smooth flow and mixing of materials, and can also assist in breaking up agglomerated materials. Whether it is granular or powdered solid materials, they can be effectively mixed in the mixer. By increasing the stirring end area through the deflection and opening of the movable plate 7, as well as the lifting of the materials and the action of the guide plate 4, a variety of solid materials can be more fully mixed to ensure that various components are evenly distributed. Agglomerated materials can be effectively sheared and broken up.

[0043] Furthermore, the guide column 10 has a guide groove 1001, which is spiral-shaped. The movable plate 7 has a mounting hole 704, and the mounting hole 704 has a protrusion 703. The protrusion 703 is slidably arranged in the guide groove 1001. After the protrusion 703 slides along the guide groove 1001, the movable plate 7 is deflected downward along the guide column 10 to an open state or deflected upward to a retracted state.

[0044] In the above scheme, the spiral guide groove 1001 on the guide column 10 provides a trajectory guide for the movement of the movable plate 7. The protrusion 703 arranged in the mounting hole 704 of the movable plate 7 is closely matched with the guide groove 1001. When the mixing rod 5 rotates, the protrusion 703 slides along the guide groove 1001, thereby driving the movable plate 7 to move. When the mixing rod 5 rotates at a high speed, the centrifugal force and the pressure generated when the material is stirred act on the movable plate 7 together. The centrifugal force causes the movable plate 7 to move outward, while the pressure of the stirring material further promotes the movement of the movable plate 7. Under the combined effect of these two forces, the movable plate 7 is in an open state. At this time, the area of ​​the stirring end is significantly increased, and it can contact the material more widely, greatly enhancing the stirring and mixing effect. It is worth noting that the rotation speed of the mixing rod 5 has a direct impact on the opening angle of the movable plate 7. The higher the rotation speed, the greater the centrifugal force, and the larger the opening angle of the movable plate 7 may be. This feature provides the possibility of flexibly adjusting the stirring intensity according to different material properties and mixing requirements. For example, for materials that are difficult to mix, the rotation speed of the mixing rod 5 can be increased and the movable plate 7 can be opened to a larger angle to enhance the stirring force; while for looser materials, the rotation speed can be appropriately reduced and the opening angle of the movable plate 7 can be reduced to avoid excessive stirring that causes material splashing.

[0045] However, when the pressure of the material on the movable plate 7 is small, the resistance of the movable plate 7 from the material is reduced. At the same time, when the fixed portion 6 of the mixing rod 5 is about to leave the material, the comprehensive force on the movable plate 7 changes. In this case, the movable plate 7 will return to the retracted state. This process is like a shearing action, which is very effective for dealing with agglomerated materials. When encountering agglomerated materials, the repeated changes of the movable plate 7 between the open and retracted states can repeatedly shear and break up the agglomerates. The agglomerates are gradually broken up by the action of the movable plate 7, and become easier to mix with other materials, thereby ensuring the quality and uniformity of the mixture.

[0046] In addition, when the movable plate 7 slides against the guide plate 4, the guide plate 4 can squeeze the movable plate 7 to deflect the movable plate 7. This squeezing and deflecting action can also achieve a shearing action. During the mixing process, the guide plate 4 not only guides the flow of part of the material, but also cooperates with the movable plate 7 to further enhance the processing capacity of agglomerated materials. The presence of the guide plate 4 makes the flow of materials in the mixing box 1 more disordered, and the materials can be stirred and mixed more quickly. At the same time, the interaction between the guide plate 4 and the movable plate 7 provides a strong guarantee for the anti-blocking function of the mixer. When agglomerated materials appear, the synergistic effect of the guide plate 4 and the movable plate 7 can promptly and effectively process the agglomerates, prevent the materials from clogging the mixer, and ensure the continuous and stable mixing process.

[0047] Furthermore, it also includes: an elastic member 11, which is sleeved on the guide column 10, one end of the elastic member 11 abuts on the fixed part 6, and the other end abuts on the movable plate 7, and the elastic member 11 is used to provide power for the movable plate 7 to complete the retracted state.

[0048] In the above scheme, the elastic member 11 can be a spring or a component with elastic deformation ability. When the movable plate 7 is in the open state, the elastic member 11 is in a compression deformation state and stores a certain amount of elastic potential energy. During the mixing process, when the pressure of the material on the movable plate 7 decreases, and the fixed part 6 of the mixing rod 5 is about to leave the material, the elastic member 11 releases the elastic potential energy to provide the movable plate 7 with power to complete the retracted state. It is ensured that the movable plate 7 can be restored to the retracted state in a timely and reliable manner. On the one hand, when the shearing action is performed, the retraction of the movable plate 7 can cooperate with the guide plate 4 to shear and break up the agglomerated materials. On the other hand, when there is no need to increase the mixing area, the retraction of the movable plate 7 can reduce the occupation of the mixing space and ensure the smooth progress of the mixing process. During the mixing process, the opening and retraction actions of the movable plate 7 need to be quickly switched according to the rotation speed of the mixing rod 5 and the force of the movable plate 7. The elastic member 11 can help the movable plate 7 to respond to these changes quickly and improve the working efficiency and mixing quality of the mixer. At the same time, the elastic force of the elastic member 11 can play a certain buffering role on the movement of the movable plate 7, reduce the impact and wear between the movable plate 7 and the fixed part 6, the guide plate 4 and other components, and extend the service life of the mixer.

[0049] Furthermore, when the movable plate 7 is in the retracted state, there is a first gap 601 between the movable plate 7 and the fixed portion 6; the movable plate 7 has a through slot 701, and the through slot 701 is used for materials to enter the first gap 601. After the movable plate 7 is opened, the material in the first gap 601 is squeezed.

[0050] In the above scheme, during the mixing process, the material can enter the first gap 601 through the through slot 701. When the movable plate 7 is changed from the retracted state to the open state under the action of the mixing rod 5, the material in the first gap 601 will be squeezed. When the movable plate 7 is opened, the squeezing of the material in the gap can further enhance the mixing effect. For the possible agglomerated materials, this squeezing also helps to further break and disperse them, and improve the uniformity of the mixing. In addition, by opening the movable plate 7 and squeezing the material in the gap, a dynamic mixing process is realized, which increases the movement complexity of the materials and makes the mixing more sufficient and efficient.

[0051] Furthermore, the deflection angle of the movable plate 7 is 0°-180°, and the movable plate 7 has a shearing edge 702, which is used to disperse materials or to cooperate with the side edge of the fixing portion 6 to shear materials.

[0052] In the above scheme, the movable plate 7 has a shearing edge 702, and when the movable plate 7 is at different deflection angles, the shearing edge 702 plays different roles. In some cases, the shearing edge 702 can be used to disperse materials. For example, when the movable plate 7 is at a smaller deflection angle, as the mixing rod 5 rotates, the shearing edge 702 can have a certain pushing and dispersing effect on the material, so that the material is more evenly distributed in the mixing box 1, thereby improving the mixing effect. In other cases, the shearing edge 702 can be used to shear materials in conjunction with the side of the fixed part 6. When the deflection angle of the movable plate 7 is large, especially in the process of processing agglomerated materials, the shearing edge 702 cooperates with the side of the fixed part 6 to form a scissors-like effect, effectively shearing and breaking up the agglomerated materials. This shearing action can break the agglomerates into smaller particles, making them easier to mix with other materials, thereby ensuring the quality and uniformity of the mixture. In summary, the 0°-180° deflection angle of the movable plate 7 and the shear edge 702 provide the double-screw mixer with a powerful material processing capability, enabling it to adapt to different mixing requirements and improve mixing efficiency and quality.

[0053] Furthermore, there are a plurality of guide plates 4, which are arranged at intervals along the height direction of the inner wall of the mixing box 1, and also include: a connecting rod 8, which is hingedly arranged between adjacent guide plates 4, and a material transfer channel 401 is formed between the side wall of the guide plate 4 and the inner wall of the mixing box 1, and the tangential direction of movement of the fixed part 6 close to the inner wall of the mixing box 1 is the feeding direction of the material transfer channel 401; the guide plate 4 has a drop hole 402, and the material entering the material transfer channel 401 falls onto the upper surface of the guide plate 4, and then falls into the middle of the mixing box 1 through the drop hole 402.

[0054] In the above scheme, when the mixing rod 5 rotates, the material will produce complex movements in the mixing box 1. At this time, the material near the inner wall of the mixing box 1 will be thrown away high, but will eventually fall to the edge again. Therefore, the material mixing effect at this position is not good, and the guide plate 4 can guide the flow direction of the material so that it can participate in the mixing process more fully. A material transfer channel 401 is formed between the side wall of the guide plate 4 and the inner wall of the mixing box 1. The moving tangential direction of the fixing part 6 near the inner wall of the mixing box 1 is the feeding direction of the material transfer channel 401. When the mixing rod 5 rotates, the movement of the fixing part 6 can drive the material into the material transfer channel 401. The setting of the material transfer channel 401 allows the material to flow more smoothly in the mixing box 1, thereby improving the mixing efficiency. The guide plate 4 also has a drop hole 402. When the material enters the material transfer channel 401 and falls on the upper surface of the guide plate 4, it will fall into the middle of the mixing box 1 through the drop hole 402. It can ensure that the materials are fully mixed in the mixing box 1. The materials fall from the upper surface of the guide plate 4 through the drop holes 402 into the middle of the mixing box 1, so that the materials at different positions can be mixed with each other, further enhancing the mixing effect.

[0055] Furthermore, the fixing portion 6 has a second gap 9 from the bottom of the mixing box 1 , and the second gap 9 is used to provide an expansion space for the movable plate 7 . After the mixing rod 5 rotates, the movable plate 7 slides against the inner bottom surface and the inner wall of the mixing box 1 .

[0056] In the above scheme, when the mixing rod 5 starts to rotate, the movable plate 7 will move under the action of various forces. Due to the second gap 9, the movable plate 7 will not be hindered by the bottom of the mixing box 1 in the process of deflecting and opening to the outside of the fixed part 6, and can be smoothly unfolded, thereby increasing the stirring end area and enhancing the stirring and mixing effect. During the mixing process, the movable plate 7 will also slide and abut on the inner bottom surface and inner side wall of the mixing box 1. This allows the movable plate 7 to contact the materials in the mixing box 1 more fully, thereby improving the stirring and mixing degree of the materials. On the other hand, the sliding abutment between the movable plate 7 and the inner bottom surface and inner side wall of the mixing box 1 also helps to prevent the materials from accumulating in the corners of the mixing box 1, ensuring that the materials can flow and mix evenly throughout the mixing box 1. At the same time, this abutment can also have a certain scraping effect on the materials in the mixing box 1, further enhancing the processing effect of the agglomerated materials, and improving the quality and efficiency of the mixing.

[0057] Furthermore, it also includes: an adjusting knob 12, which is rotatably arranged at the bottom of the fixing portion 6, and the bottom of the guide column 10 is threadedly connected to the adjusting knob 12, and the adjusting knob 12 is used to adjust the extension length of the guide column 10 and the deflection angle of the movable plate 7.

[0058] In the above scheme, the extended length of the guide column 10 can be changed by turning the adjusting knob 12. Since the movement of the movable plate 7 is controlled by the guide groove 1001 on the guide column 10 and the protrusion 703 matched with the guide groove 1001, adjusting the extended length of the guide column 10 will directly affect the movement trajectory and deflection angle of the movable plate 7. When it is necessary to adjust the deflection angle of the movable plate 7 according to different materials and mixing requirements, the operator can achieve it by turning the adjusting knob 12. For example, for some materials that require greater stirring force and mixing degree, the extended length of the guide column 10 can be increased to increase the deflection angle of the movable plate 7, thereby increasing the stirring end area and improving the stirring effect. For some loose or splash-prone materials, the extended length of the guide column 10 can be reduced to reduce the deflection angle of the movable plate 7 to avoid excessive stirring causing material splashing. In short, the setting of the adjusting knob 12 enables the double-screw mixer with anti-blocking function to better adapt to different working scenes and material requirements, and improves the versatility and practicality of the mixer.

[0059] Furthermore, the mixing box 1 has a discharge port 3 and also includes: a dust removal pipe 2, one end of which is connected to the top of the mixing box 1 and the other end extends to the discharge port 3. The dust removal pipe 2 is used to guide and transport the material dust in the mixing box 1 to the discharge port 3.

[0060] In the above scheme, the mixing box 1 has a discharge port 3 for discharging the mixed materials after the mixing is completed. One end of the dust removal pipe 2 is connected to the top of the mixing box 1, and the other end extends to the discharge port 3. During the mixing process, due to the movement and stirring of the materials, a certain amount of material dust may be generated. The function of the dust removal pipe 2 is to guide and transport the material dust in the mixing box 1 to the discharge port 3. First, it can effectively reduce the dust content in the mixing box 1, keep the mixing environment clean, and reduce the impact of dust on the health of operators. Secondly, guiding the dust to the discharge port 3 can make the dust be discharged together with the mixed material, avoiding the accumulation of dust in the mixing box 1 and affecting the subsequent mixing effect. At the same time, it also helps to improve the collection efficiency of materials and reduce material waste.

[0061] Furthermore, it also includes: an elastic auxiliary member 13, one end of which is hinged on the inner wall of the mixing box 1, and the other end is hinged on the side wall of the guide plate 4. The elastic auxiliary member 13 is used to assist in increasing the vibration effect of the movable plate 7.

[0062] In the above scheme, during the mixing process, when the movable plate 7 interacts with the guide plate 4 to generate vibration, the elastic auxiliary member 13 can play an important role. The elastic auxiliary member 13 can assist in increasing the vibration effect of the movable plate 7. When the movable plate 7 performs a shearing action or contacts the guide plate 4, a certain vibration will be generated. The elastic auxiliary member 13 can provide a certain elastic restoring force when the movable plate 7 vibrates through its own elasticity, thereby enhancing the vibration amplitude and frequency of the movable plate 7. This enhanced vibration effect helps to better handle the agglomerated materials. Larger vibrations can make the agglomerates easier to break and disperse under the action of the movable plate 7 and the guide plate 4, thereby improving the uniformity of the mixing. At the same time, vibrations also help the flow and mixing of materials in the mixing box 1, preventing material accumulation and blockage. In addition, the hinged connection of the elastic auxiliary member 13 enables it to flexibly adjust its angle and position as the guide plate 4 moves during the mixing process, ensuring that it can always effectively play the role of auxiliary vibration.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A double-screw mixer with anti-blocking function, comprising a mixing box (1) and a mixing rod (5) rotatably arranged in the mixing box (1), used for mixing a plurality of solid materials, characterized in that: The mixing rod (5) has a fixing portion (6) and further comprises: A guide column (10) is arranged on the fixing portion (6); A movable plate (7) is slidably sleeved on the guide column (10), and after the mixing rod (5) rotates, the movable plate (7) is deflected and opened toward the outside of the fixed portion (6) with the guide column (10) as the center; A material guide plate (4) is hingedly arranged on the inner wall of the mixing box (1), the bottom surface of the material guide plate (4) abuts against the movable plate (7), and after the movable plate (7) contacts the material guide plate (4), the material guide plate (4) squeezes the movable plate (7) and retracts it onto the fixed portion (6); The guide column (10) has a guide groove (1001), the guide groove (1001) is spiral-shaped, the movable plate (7) has a mounting hole (704), the mounting hole (704) has a protrusion (703), the protrusion (703) is slidably arranged in the guide groove (1001), and after the protrusion (703) slides along the guide groove (1001), the movable plate (7) is deflected downward to an open state or deflected upward to a retracted state along the guide column (10); Also includes: an elastic member (11) sleeved on the guide column (10), one end of the elastic member (11) abutting against the fixed portion (6), and the other end abutting against the movable plate (7), the elastic member (11) being used to provide the movable plate (7) with power to complete the retracted state; There are a plurality of the guide plates (4), and the plurality of guide plates (4) are arranged at intervals along the height direction of the inner side wall of the mixing box (1), and further comprising: A connecting rod (8) is hingedly arranged between adjacent material guide plates (4), a material transfer channel (401) is formed between the side wall of the material guide plate (4) and the inner wall of the mixing box (1), and the tangential direction of movement of the fixed portion (6) close to the inner wall of the mixing box (1) is the feeding direction of the material transfer channel (401); The material guide plate (4) has a material drop hole (402), and the material entering the material passage (401) falls onto the upper surface of the material guide plate (4), and then falls into the middle of the mixing box (1) through the material drop hole (402); Also includes: An adjusting knob (12) is rotatably arranged at the bottom of the fixing portion (6); the bottom of the guide column (10) is threadedly connected to the adjusting knob (12); and the adjusting knob (12) is used to adjust the extension length of the guide column (10) and the deflection angle of the movable plate (7).

2. A double-screw mixer with anti-blocking function according to claim 1, characterized in that: When the movable plate (7) is in a retracted state, a first gap (601) is provided between the movable plate (7) and the fixed portion (6); the movable plate (7) has a through slot (701), and the through slot (701) is used for materials to enter the first gap (601); when the movable plate (7) is opened, the materials in the first gap (601) are squeezed.

3. A double-screw mixer with anti-blocking function according to claim 1, characterized in that: The deflection angle of the movable plate (7) is 0°-180°, and the movable plate (7) has a shearing edge (702), and the shearing edge (702) is used to disperse materials or the shearing edge (702) is used to cooperate with the side edge of the fixed portion (6) to shear materials.

4. The double-screw mixer with anti-blocking function according to claim 1, characterized in that: The fixing portion (6) has a second gap (9) from the bottom of the mixing box (1), and the second gap (9) is used to provide an expansion space for the movable plate (7). After the mixing rod (5) rotates, the movable plate (7) slides against the inner bottom surface and inner side wall of the mixing box (1).

5. The double-screw mixer with anti-blocking function according to claim 1, characterized in that: The mixing box (1) has a discharge port (3) and further comprises: A dust removal pipe (2) is provided at one end in communication with the top of the mixing box (1), and the other end extends to the discharge port (3). The dust removal pipe (2) is used to guide and transport material dust in the mixing box (1) to the discharge port (3).

6. The double-screw mixer with anti-blocking function according to claim 1, characterized in that: Also includes: An elastic auxiliary member (13) has one end hingedly arranged on the inner wall of the mixing box (1) and the other end hingedly arranged on the side wall of the guide plate (4). The elastic auxiliary member (13) is used to assist in increasing the vibration effect of the movable plate (7).

Images