An extrusion granulation device

Abstract

The present invention discloses an extrusion granulation device, which relates to the technical field of fatty acid salt production. The device includes a cylinder body and a spiral extrusion rod disposed inside the cylinder body, and further includes: a cutting knife for cutting the material extruded from the extrusion port; a first transmission assembly for driving the spiral extrusion rod to move intermittently and extruding the material; a second transmission assembly for driving the cutting knife to move; when the spiral extrusion rod is in an intermittent state, the cutting knife rotates and cuts off the extruded material; and a driving mechanism for driving the first transmission assembly and the second transmission assembly. By providing the first transmission assembly in the present invention, the spiral extrusion rod moves intermittently. When the spiral extrusion rod is in an intermittent state, the second transmission assembly drives the cutting knife to move to cut the extruded material, so as to ensure the uniformity of the cutting of the extruded particles, make the sizes of the cut fatty acid salt particles uniform, and eliminate the need for subsequent screening treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of fatty acid salt production, and particularly to an extrusion granulation device. Background Art

[0002] The product synthesized from fatty acids and metal compounds is a fatty acid salt, also known as metal soap. Due to its characteristics of containing fatty acids and metal salts, it is often used as a plastic heat stabilizer lubricant. In addition, it is widely used in rubber, ink, medical equipment, petrochemical and other fields. It is a relatively common chemical additive on the market, and its annual output is gradually increasing. The most common fatty acid salts are palmitates, laurates and stearates. Common fatty acid salts include calcium salts, zinc salts, magnesium salts, etc. Among them, the demand for calcium fatty acid accounts for about 60% of the fatty acid salt heat stabilizers, playing a crucial role in the field of plastic additives.

[0003] The fatty acid salts currently sold on the market are mainly in the forms of powder, granules and emulsion. Due to the dust-free granulation process, which can solve the problems of dust pollution, wastewater and high energy consumption caused by powder fatty acid salts, the production process of granular fatty acid salts has received increasing attention. In the prior art, a cutting device is usually set at the extrusion outlet of an extrusion granulator to cut the extruded material to obtain granular fatty acid salts, and then the unqualified small particles are screened out to obtain fatty acid salt particles with uniform size.

[0004] The deficiencies of the prior art are as follows: In actual use of the extrusion granulation device in the prior art, since the screw extruder is in a continuous extrusion state and the cutting knife is also in a continuous rotation state, during the rotation of the cutting knife, due to the continuous extrusion of the material, the size of the cut fatty acid salt particles is uneven. Therefore, those skilled in the art have provided an extrusion granulation device to solve the problems raised in the above background art. Summary of the Invention

[0005] The purpose of the present invention is to provide an extrusion granulation device to solve the above deficiencies in the prior art.

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

[0007] An extrusion granulation device, including a cylinder and a spiral extrusion rod arranged inside the cylinder, further including:

[0008] A cutting knife, which is used to cut the material extruded from the extrusion outlet;

[0009] A first transmission assembly, which is used to drive the spiral extrusion rod to move intermittently and extrude the material;

[0010] A second transmission assembly, which is used to drive the cutting knife to move;

[0011] When the spiral extrusion rod is in an intermittent state, the cutting knife rotates and cuts off the extruded material.

[0012] A driving mechanism for driving the first transmission assembly and the second transmission assembly.

[0013] As a further description of the above technical solution: The driving mechanism includes a driving motor fixed on the frame and a driving shaft connected to the driving motor; the first transmission assembly includes a rotating shaft on the spiral extrusion rod and an incomplete gear sleeved on the driving shaft, and a first gear meshing with the incomplete gear is sleeved on the rotating shaft.

[0014] As a further description of the above technical solution: The second transmission assembly includes a driven shaft arranged on the frame and a second gear sleeved on the driving shaft, and a third gear meshingly connected with the second gear is sleeved on the driven shaft.

[0015] As a further description of the above technical solution: It further includes an extrusion part sleeved on the driven shaft, and the cutting knife is fixedly arranged on the extrusion part.

[0016] As a further description of the above technical solution: It further includes a receiving member, which is hinged on the frame, and receiving grooves corresponding to the extrusion holes on the extrusion port one by one are formed on the receiving member. The receiving member is close to the extrusion port and is used for receiving the material extruded from the extrusion port.

[0017] As a further description of the above technical solution: An extrusion block is arranged on the cutting knife. When the cutting knife cuts, the extrusion block is inserted into the squeezing groove on the receiving member to form a cutting gap.

[0018] As a further description of the above technical solution: A protrusion is arranged on the extrusion part. After the cutting knife cuts, the extrusion part rotates into the notch on the receiving member, so that the protrusion squeezes the receiving member to rotate along its hinge axis, and is in an inclined state to pour out the cut material particles from the receiving member.

[0019] As a further description of the above technical solution: The receiving member includes an outer shell hinged on the frame, and an inner shell is slidably arranged along the axial direction inside the outer shell. A plurality of shaping tubes corresponding to the extrusion holes on the extrusion port one by one are arranged on the inner shell. The receiving grooves are formed inside the shaping tubes, and the shaping tubes slide along the through holes on the outer shell.

[0020] As a further description of the above technical solution: When the cutting knife cuts, the inner shell is squeezed by the cutting knife and slides towards the inside of the outer shell to form the cutting gap.

[0021] As a further description of the above technical solution: The outer edge of the extrusion part is chamfered.

[0022] In the above technical solution, the beneficial effects of an extrusion granulation device provided by the present invention are as follows:

[0023] By setting the first transmission component, the screw extrusion rod moves intermittently. After the screw extrusion rod is in the intermittent state, that is, after the material is extruded, the second transmission component drives the cutting knife to move to cut the extruded material, so as to ensure the uniformity of the cut extrusion particles, make the size of the cut fatty acid salt particles uniform, and there is no need for subsequent screening treatment. Moreover, both the first transmission component and the second transmission component are driven by one drive source, reducing the use of drive sources.

[0024] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not intended to limit the present disclosure.

[0025] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a complete disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments recorded in the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0027] Figure 1 It is a schematic structural diagram of an extrusion granulation device provided by an embodiment of the present invention;

[0028] Figure 2 It is a schematic cross-sectional structure diagram of an extrusion granulation device provided by an embodiment of the present invention;

[0029] Figure 3 It is a schematic installation structure diagram of a receiving member in an extrusion granulation device provided by an embodiment of the present invention;

[0030] Figure 4 It is a schematic structural diagram of the receiving member after rotation and inclination in an extrusion granulation device provided by an embodiment of the present invention;

[0031] Figure 5 It is a state diagram of the cutting knife after the material is extruded in an extrusion granulation device provided by an embodiment of the present invention;

[0032] Figure 6 It is a schematic state diagram of the extrusion part after the cutting knife cuts in an extrusion granulation device provided by an embodiment of the present invention;

[0033] Figure 7The state diagram of the extrusion part rotating away from the receiving part in an extrusion granulation device provided by an embodiment of the present invention;

[0034] Figure 8 The structural schematic diagram of the receiving part in an extrusion granulation device provided by an embodiment of the present invention.

[0035] Explanation of reference numerals:

[0036] 1, cylinder body; 2, extrusion port; 3, screw extrusion rod; 4, drive mechanism; 41, driving shaft; 42, drive motor; 43, incomplete gear; 44, second gear; 45, driven shaft; 46, third gear; 47, first gear; 5, extrusion part; 6, cutting knife; 7, receiving part; 71, outer housing; 72, inner housing; 73, spring; 74, shaping tube; 75, through hole; 76, cavity; 8, extrusion block; 9, protrusion; 10, squeezing groove; 11, notch. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Apparently, the described embodiments are some but not all of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the described embodiments of the present disclosure fall within the scope of protection of the present disclosure.

[0038] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should have the ordinary meanings understood by those of ordinary skill in the art to which the present disclosure pertains. The terms "including" or "comprising" and the like used in the present disclosure mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms "connected" or "coupled" and the like are not limited to physical or mechanical connections, and may also include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0039] Please refer to Figure 1-8 , an embodiment of the present invention provides a technical solution:

[0040] An extrusion granulation device, comprising a cylinder body 1 and a spiral extrusion rod 3 arranged inside the cylinder body 1. The spiral extrusion rod 3 is used to extrude the material in the cylinder body 1 from the extrusion outlet 2. A feed hopper is arranged on the cylinder body 1 for adding materials. It further includes: a cutting knife 6, which is used to cut the material extruded from the extrusion outlet 2 to obtain granular materials; a first transmission assembly, which is used to drive the spiral extrusion rod 3 to move intermittently and extrude the materials. That is, when the spiral extrusion rod 3 extrudes the materials to the required particle size, the extrusion stops, and the cutting knife 6 cuts. During cutting, the spiral extrusion rod 3 stops working. After cutting, the spiral extrusion rod 3 continues to extrude to ensure that the extrusion of materials is not affected during the cutting by the cutting knife 6, achieving the purpose of uniform cutting particle size; a second transmission assembly, which is used to drive the cutting knife 6 to move to cut the materials into required particle sizes; when the spiral extrusion rod 3 is in an intermittent state, the cutting knife 6 rotates and cuts off the extruded materials. The intermittent state of the spiral extrusion rod 3 is the working state when the spiral extrusion rod 3 stops extruding when the materials are extruded to the required particle size. That is, when the spiral extrusion rod 3 stops extruding, the cutting knife 6 rotates and cuts off the extruded materials. During the cutting process of the cutting knife 6, the spiral extrusion rod 3 is in an intermittent state, preventing the rotation of the cutting knife 6 from affecting the extrusion of materials and resulting in uneven cutting particles, making the cutting particle size uniform. After cutting is completed, the spiral extrusion rod 3 continues to work for extrusion; a driving mechanism 4, which is used to drive the first transmission assembly and the second transmission assembly, so that both the first transmission assembly and the second transmission assembly are driven by a single driving source, reducing costs and saving energy.

[0041] Specifically, during use, the materials are added into the cylinder body 1 through the feed hopper. The driving mechanism 4 works, driving the first transmission assembly and the second transmission assembly to work. The first transmission assembly drives the spiral extrusion rod 3 to move intermittently to extrude the materials. When the spiral extrusion rod 3 is in an intermittent state, that is, when the spiral extrusion rod 3 stops extruding the materials when they reach the required particle size, the cutting knife 6 rotates and cuts off the extruded materials. During the cutting process of the cutting knife 6, the spiral extrusion rod 3 stops extruding, making the cutting particle size uniform. After the cutting knife 6 finishes cutting, the spiral extrusion rod 3 continues to work for extrusion. When the spiral extrusion rod 3 is in an intermittent state, the cutting knife 6 cuts, realizing continuous cutting of the materials and obtaining granular materials with uniform size.

[0042] In the present invention, through the first transmission component provided, the spiral extrusion rod 3 moves intermittently. After the spiral extrusion rod 3 is in an intermittent state, that is, after the material is extruded, the second transmission component drives the cutting knife 6 to move to cut the extruded material, so as to ensure the uniformity of the cutting of the extruded particles, make the sizes of the cut fatty acid salt particles uniform, and eliminate the need for subsequent screening treatment. Moreover, both the first transmission component and the second transmission component are driven by one drive source, reducing the use of drive sources, and solving the problem in the prior art that the screw extruder is in a continuous extrusion state and the cutting knife 6 is also in a continuous rotation state. During the rotation of the cutting knife 6, due to the continuous extrusion of the material, the sizes of the cut fatty acid salt particles are uneven.

[0043] In another embodiment provided by the present invention, the driving mechanism 4 includes a driving motor 42 fixed on the frame and a driving shaft 41 connected to the driving motor 42. The driving motor 42 drives the driving shaft 41 to work to drive the first transmission component and the second transmission component to work. By providing the driving mechanism 4, only one drive source is required to realize the work of the first transmission component and the second transmission component, reducing the use of drive sources. The first transmission component includes a rotating shaft on the spiral extrusion rod 3 and an incomplete gear 43 sleeved on the driving shaft 41. A first gear 47 meshing with the incomplete gear 43 is sleeved on the rotating shaft. Specifically, by the operation of the driving motor 42, the driving shaft 41 drives the incomplete gear 43 to rotate, and then the incomplete gear 43 drives the first gear 47 to rotate, realizing the intermittent movement of the spiral extrusion rod 3 and making the spiral extrusion rod 3 extrude the material intermittently.

[0044] In another embodiment provided by the present invention, the second transmission component includes a driven shaft 45 arranged on the frame and a second gear 44 sleeved on the driving shaft 41. A third gear 46 meshing with the second gear 44 is sleeved on the driven shaft 45, and the cutting knife 6 is fixed on the driven shaft 45. Specifically, the driving shaft 41 drives the second gear 44 to rotate, so that the third gear 46 meshing with the second gear 44 rotates, and then drives the driven shaft 45 to rotate, making the cutting knife 6 rotate with the driven shaft 45 for cutting treatment.

[0045] Specifically, when the incomplete gear 43 rotates to mesh with the first gear 47, the material passes through the extrusion holes on the extrusion port 2. When the incomplete gear 43 rotates to separate from the first gear 47, that is, when it is not in the meshing state, the spiral extrusion rod 3 is in an intermittent state, that is, when the spiral extrusion rod 3 extrudes the material to the required particles and stops extruding, the second transmission component drives the cutting knife 6 to rotate to cut the extruded material, obtaining fatty acid salt particles with uniform sizes.

[0046] In another embodiment provided by the present invention, it further includes an extrusion part 5 sleeved on the driven shaft 45. The extrusion part 5 is fixed on the driven shaft 45, and the cutting knife 6 is fixedly arranged on the extrusion part 5. The outer edge of the extrusion part 5 is chamfered so that when the driven shaft 45 rotates, the extrusion part 5 can smoothly enter the gap between the extrusion port 2 and the receiving part 7, so as to extrude the receiving part 7 to make the receiving part 7 rotate to an inclined state to pour out the material particles. By providing the extrusion part 5, the cut material particles can be automatically poured out after the cutting knife 6 cuts the material.

[0047] In another embodiment provided by the present invention, it further includes a receiving part 7, which is hinged on the frame, and a torsion spring is arranged on the hinge shaft. The elastic force of the torsion spring makes the receiving part 7 closely adhere to the extrusion port 2, that is, the receiving part 7 can rotate and reset after losing extrusion and fit with the extrusion port 2 to ensure that the extruded material smoothly enters the receiving groove through the extrusion hole. And the receiving part 7 is provided with receiving grooves corresponding one by one to the extrusion holes on the extrusion port 2. The receiving part 7 closely adheres to the extrusion port 2 and is used to receive the material extruded from the extrusion port 2. By providing the receiving part 7, the material extruded from the extrusion hole can directly enter the receiving groove, preventing the extruded material from tilting or bending due to gravity. The receiving groove can play a certain role in supporting and shaping. At the same time, since the extruded material is in the receiving groove, the receiving groove supports and limits the material, and can prevent the material particles from bending and deforming when the cutting knife 6 rotates and cuts, ensuring that the material particles meet the granulation requirements, and solving the problems in the prior art that the material at the extrusion port 2 is prone to bending and deforming due to gravity and when the cutting knife 6 rotates and cuts, the rotation cutting force causes the particles to deform.

[0048] In another embodiment provided by the present invention, an extrusion block 8 is arranged on the cutting knife 6. When the cutting knife 6 cuts, the extrusion block 8 is inserted into the squeezing groove 10 on the receiving part 7 to form a cutting gap. The cutting gap is the gap through which the cutting knife 6 can rotate into the gap between the extrusion port 2 and the receiving part 7 to cut the material. The squeezing groove 10 is an inclined groove, so that when the cutting knife 6 rotates, the extrusion block 8 first enters the squeezing groove 10 to extrude a gap, and then the cutting knife 6 continues to rotate, and the cutting knife 6 can be squeezed into the cutting gap between the extrusion port 2 and the receiving part 7 to cut the material. This design makes the extrusion port 2 and the receiving part 7 separate when the cutting knife 6 cuts, and the cutting knife 6 can enter the cutting gap for cutting. When not cutting, the extrusion port 2 and the receiving part 7 fit, so that the material extruded from the extrusion hole smoothly enters the receiving groove.

[0049] In another embodiment provided by the present invention, a protrusion 9 is provided on the extrusion part 5. After the cutting knife 6 cuts, the extrusion part 5 rotates and enters the notch 11 on the receiving part 7. The notch 11 is an inclined groove, which can adapt to the edge of the extrusion part 5, so that the extrusion part 5 can smoothly enter the gap between the extrusion port 2 and the receiving part 7 from the notch 11, so that the protrusion 9 can gradually extrude the receiving part 7 as the extrusion part 5 rotates, so that the receiving part 7 rotates along its hinge axis, tilts and pours out the cut material particles from the receiving part 7. Through the protrusion 9 provided on the extrusion part 5, after the cutting knife 6 cuts, the protrusion 9 can extrude the receiving part 7 to rotate to an inclined state and automatically pour out the material particles.

[0050] In another embodiment provided by the present invention, the receiving part 7 includes an outer shell 71 hinged to the frame. An inner shell 72 is slidably arranged in the outer shell 71 along the axial direction. When the inner shell 72 is squeezed, it drives the shaping tube 74 to slide and contract into the outer shell 71. The squeezing groove 10 and the notch 11 are both arranged on the inner shell 72. A spring 73 is arranged between the inner shell 72 and the outer shell 71, so that when the pressure on the inner shell 72 disappears, the elastic force of the spring 73 drives the inner shell 72 to reset and slide out of the outer shell 71 to closely adhere to the extrusion port 2. That is, after the cutting knife 6 rotates away from the cutting gap, the elastic restoring force of the spring 73 drives the inner shell 72 to slide back to its original position and closely adhere to the extrusion port 2 to receive the material extruded from the extrusion port 2. A plurality of shaping tubes 74 corresponding to the extrusion holes on the extrusion port 2 are arranged on the inner shell 72. A receiving groove is formed in the shaping tube 74. The material extruded from the extrusion holes enters the receiving groove. The shaping tube 74 slides along the through hole 75 on the outer shell 71. When the cutting knife 6 cuts, the inner shell 72 is squeezed by the cutting knife 6 and slides into the interior of the outer shell 71 to form a cutting gap, realizing the cutting of the material particles. A cavity 76 is arranged in the inner shell 72, and a cooling medium is filled in the cavity 76 to cool and shape the cut material particles in the receiving groove, so that the material can smoothly pour out of the receiving groove when the outer shell 71 is tilted. The receiving groove can not only support and shape the extruded material particles, but also support and limit the material particles during cutting, and can cool and shape the cut particles, so that the cut particles do not need to go through the cooling step, saving the operation process and realizing the automatic discharging of the material particles.

[0051] Specifically, when the cutting knife 6 rotates and cuts, the extrusion block 8 is inserted into the squeezing groove 10 on the inner shell 72 to squeeze out a gap. As the cutting knife 6 continues to rotate, the inner shell 72 is squeezed by the cutting knife 6 and slides into the interior of the outer shell 71 to form a cutting gap. The cutting knife 6 rotates along the cutting gap to cut the extruded material (refer to Figure 5 ), obtaining uniformly sized material particles. At the same time, the cooling medium in the receiving groove cools and shapes the particles. After the cutting knife 6 rotates away from the cutting gap, after the cutting knife 6 cuts (refer to Figure 6), the extrusion part 5 rotates into the notch 11 on the inner housing 72 and gradually extrudes a gap. With the continuous rotation and extrusion of the extrusion part 5, the protrusion 9 is extruded into the gap between the extrusion outlet 2 and the inner housing 72. The protrusion 9 continuously extrudes the inner housing 72, causing the inner housing 72 to axially slide and contract into the outer housing 71, and squeezing the outer housing 71 to make the outer housing 71 rotate along the rotating shaft and be in an inclined state (refer to Figure 4 ), so that the cut and cooled and shaped material particles are poured out from the receiving groove, realizing automatic discharging. When the extrusion part 5 rotates to separate from the receiving part 7 (refer to Figure 7 ), that is, when the extrusion part 5 disengages from the gap between the extrusion outlet 2 and the inner housing 72, the pressure on the receiving part 7 disappears, and the elastic restoring force of the torsion spring drives the outer housing 71 to rotate and reset. At the same time, the elastic restoring force of the spring 73 drives the inner housing 72 to slide and reset, closely adhering to the extrusion outlet 2. At this time, the extrusion part 5 continues to drive the cutting knife 6 to rotate and reset. During this process, the screw extrusion rod 3 works, and the material is extruded from the extrusion outlet 2, and the cutting knife 6 continues to rotate for cutting.

[0052] In actual use, the material is added into the cylinder 1 through the feed hopper. By the operation of the driving mechanism 4, the first transmission component drives the screw extrusion rod 3 to move intermittently, and the second transmission component drives the cutting knife 6 to rotate to cut the extruded material. That is, the driving motor 42 works to drive the driving shaft 41 to rotate, so that the incomplete gear 43 rotates, driving the first gear 47 to rotate intermittently, thereby making the screw extrusion rod 3 rotate intermittently to extrude the material intermittently. At the same time, the driving shaft 41 rotates to drive the second gear 44 to rotate, so that the third gear 46 drives the driven shaft 45 to rotate, and further makes the extrusion part 5 drive the cutting knife 6 to rotate for cutting. During this process, when the incomplete gear 43 rotates to mesh with the first gear 47, the material passes through the extrusion holes on the extrusion outlet 2 and is extruded into the receiving groove on the receiving part 7, preventing the material from bending or deforming during extrusion or cutting. At the same time, the cooling medium in the cavity 76 cools and shapes the particles in the receiving groove. When the incomplete gear 43 rotates to separate from the first gear 47, that is, when it is not in the meshing state, the screw extrusion rod 3 is in an intermittent state, that is, when the screw extrusion rod 3 stops extruding the material to the required particles. At this time, the second transmission component continues to drive the cutting knife 6 to rotate. The cutting knife 6 rotates, and the extrusion block 8 is inserted into the squeezing groove 10 on the inner housing 72 to extrude a gap. With the continuous rotation of the cutting knife 6, the inner housing 72 is squeezed by the cutting knife 6 and slides inward into the outer housing 71 to form a cutting gap (refer to Figure 2-3 ), and the cutting knife 6 rotates along the cutting gap to cut the extruded material (refer to Figure 5), uniform-sized material particles are obtained. At this time, the cut particles are in the receiving groove and are cooled and shaped. After the cutting knife 6 rotates out of the cutting gap, the elastic restoring force of the spring 73 drives the inner housing 72 to slide back to its original position and closely adhere to the extrusion port 2. After the cutting knife 6 cuts (refer to Figure 6 ), as the cutting knife 6 continues to rotate, the extrusion part 5 rotates into the notch 11 on the inner housing 72 and gradually squeezes out a gap. As the extrusion part 5 continuously rotates and extrudes, the protrusion 9 is squeezed into the gap between the extrusion port 2 and the inner housing 72. The protrusion 9 continuously squeezes the inner housing 72, causing the inner housing 72 to axially slide and contract into the outer housing 71, and squeezing the outer housing 71 to cause the outer housing 71 to rotate along the rotating shaft and be in an inclined state (refer to Figure 4 ), so that the cut and cooled and shaped material particles are poured out of the receiving groove, realizing automatic discharging. When the extrusion part 5 rotates to separate from the receiving part 7 (refer to Figure 7 ), that is, when the extrusion part 5 disengages from the gap between the extrusion port 2 and the inner housing 72, the pressure on the receiving part 7 disappears, and the elastic restoring force of the torsion spring drives the outer housing 71 to rotate back to its original position. At the same time, the elastic restoring force of the spring 73 drives the inner housing 72 to slide back to its original position and closely adhere to the extrusion port 2. At this time, the extrusion part 5 continues to drive the cutting knife 6 to rotate back to its original position. During this process, that is, when the cutting knife 6 rotates from the position in Figure 7 to the position of the cutting knife 6 in Figure 5 , during this process, the incomplete gear 43 rotates to engage with the first gear 47, the screw extrusion rod 3 works, and the material is extruded from the extrusion port 2 again. After the extrusion is completed, the cutting knife 6 rotates to the position as in Figure 5 , and as the cutting knife 6 continues to rotate, the extruded material is cut again to realize continuous granulation.

[0053] The above only describes some exemplary embodiments of the present invention by way of illustration. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. An extrusion granulation device, comprising a cylinder body and a spiral extrusion rod disposed inside the cylinder body, characterized in that, Further comprising: A cutting knife for cutting the material extruded from the extrusion port; A first transmission component for driving the spiral extrusion rod to move intermittently and extruding the material; A second transmission component for driving the cutting knife to move; When the spiral extrusion rod is in an intermittent state, the cutting knife rotates and cuts off the extruded material; A driving mechanism for driving the first transmission component and the second transmission component; The first transmission component includes a rotating shaft on the spiral extrusion rod and an incomplete gear sleeved on the driving shaft, and a first gear meshing with the incomplete gear is sleeved on the rotating shaft; The second transmission component includes a driven shaft arranged on the frame and a second gear sleeved on the driving shaft; Further comprising a receiving member hinged on the frame, and receiving grooves corresponding one-to-one to the extrusion holes on the extrusion port are formed on the receiving member. The receiving member is close to the extrusion port and is used for receiving the material extruded from the extrusion port; An extrusion block is arranged on the cutting knife. When the cutting knife cuts, the extrusion block is inserted into the squeezing groove on the receiving member to form a cutting gap; The receiving member includes an outer shell hinged on the frame. An inner shell is slidably arranged along the axial direction inside the outer shell. A plurality of shaping tubes corresponding one-to-one to the extrusion holes on the extrusion port are arranged on the inner shell. The receiving grooves are formed inside the shaping tubes, and the shaping tubes slide along the through holes on the outer shell; When the cutting knife cuts, the inner shell is squeezed by the cutting knife and slides towards the inside of the outer shell to form the cutting gap.

2. The extrusion granulation device according to claim 1, characterized in that, The driving mechanism includes a driving motor fixed on the frame and a driving shaft connected to the driving motor.

3. An extrusion granulation device according to claim 1, characterized in that, A third gear meshingly connected with the second gear is sleeved on the driven shaft.

4. The extrusion granulation device according to claim 3, characterized in that, Further comprising an extrusion part sleeved on the driven shaft, and the cutting knife is fixedly arranged on the extrusion part.

5. An extrusion granulation device according to claim 4, characterized in that, A protrusion is arranged on the extrusion part. After the cutting knife cuts, the extrusion part rotates into the notch on the receiving member, so that the protrusion squeezes the receiving member to rotate along its hinge axis, and is in an inclined state to pour out the cut material particles from the receiving member.

6. An extrusion granulation device according to claim 4, characterized in that, The outer edge of the extrusion part is chamfered.

Images