Automatic pelletizing device of twin-screw extrusion pelletizer

Abstract

The utility model discloses an automatic pelletizing device of a twin-screw extrusion pelletizer, which comprises a base, the surface of the base is fixedly connected with a pelletizer, and the top of the pelletizer is provided with a feed inlet. The utility model relates to the technical field of pelletizing, the clamping rod is separated from the clamping groove by rotating the clamping rod, so that the fixed rod can be separated from the positioning rod, the cutter and the positioning rod can be conveniently detached together at the moment, and when a new cutter is installed, the fixed rod of the cutter is sleeved on the outer wall of the positioning rod and is pushed upwards, so that the cutter can be conveniently detached. Due to the slope design of the bottom of the positioning rod and the tops of the clamping rods, under extrusion of the positioning rod, the two clamping rods rotate and are far away from each other, so that the positioning rod can be completely inserted into the fixing rod, then the clamping rods are inserted into the clamping grooves under the action of the torsion springs, and the positioning rod and the fixing rod are fixed; cutter bodies of different specifications can be selected according to actual requirements, the mounting and dismounting processes are easy to operate, and fixing is effective.

Description

Technical Field

[0001] The utility model relates to the technical field of pelletizing, in particular to an automatic pelletizing device for a twin-screw extrusion granulator. Background Technique

[0002] The twin-screw extruder is developed on the basis of the single-screw extruder. Due to its good feeding performance, mixing and plasticizing performance, exhaust performance, extrusion stability and other characteristics, it has been widely used in the forming and processing of extruded products.

[0003] In the prior art, different processes are carried out on the materials inside the extruder, and finally a cutting knife is used to cut the pellets.

[0004] However, when the cutting knife is used for a long time, when cutting the granulator, the surface of the cutting knife is easily adhered to the residual materials of the granulator, and the cutting knife needs to be replaced. However, the process of replacing the cutting knife is relatively troublesome, which will reduce the work efficiency. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides an automatic pelletizing device for a twin-screw extrusion granulator, which solves the problem that when the cutting knife is used for a long time, when cutting the granulator, the surface of the cutting knife is easily adhered to the residual materials of the granulator, and the cutting knife needs to be replaced. However, the process of replacing the cutting knife is relatively troublesome, which will reduce the work efficiency.

[0006] To achieve the above object, the utility model is realized through the following technical solutions: an automatic pelletizing device for a twin-screw extrusion granulator, including a base, a granulator is fixedly connected to the surface of the base, a feeding port is opened at the top of the granulator, a cutting knife is arranged on one side of the granulator away from the feeding port, a servo motor is fixedly connected to the outer wall of the cutting knife, the outer wall of the servo motor is fixedly connected to one side of the bottom of the granulator, an output end of the servo motor is fixedly connected to a positioning rod, a fixing mechanism is arranged at one end of the positioning rod, and the fixing mechanism includes: a fixing rod fixedly connected to the side of the cutting knife close to the granulator; a cavity opened inside the fixing rod and sleeved with the positioning rod; a clamping groove arranged inside the cavity and fitting with the positioning rod; a clamping device arranged inside the cavity and rotatably connected to the cavity through a pin shaft; wherein, the fixing rod inserts the positioning rod into the inside of the fixing rod by opening the cavity, and fixes the positioning rod through the clamping groove and the clamping device.

[0007] Preferably, the clamping device includes: a fixing plate, passing through the surface of the fixing rod and movably connected to the cavity; a clamping rod, fixedly connected to the surface of the fixing plate and rotatably connected to the inner wall of the cavity; a torsion spring, installed between the clamping rod and the cavity; wherein, by rotating the fixing plate, the clamping rod can be disengaged from the clamping groove, and then the positioning rod can be toggled, playing a role in conveniently replacing different cutting knives. By loosening the torsion spring, the torsion spring makes the clamping rod more stable in the clamping groove.

[0008] Preferably, a grinding box is provided at the bottom of the cutting knife. The grinding box is fixedly connected to the top of the base. Threaded rods are connected to both sides of the inner wall of the grinding box. The threaded rods extend to the outside of the grinding box. A plug rod is inserted into the inner wall of the threaded rod. An elastic member is sleeved on the outer wall of the plug rod. One end of the plug rod close to the cutting knife is fixedly connected to a grinding block. Both ends of the elastic member are abutted against the grinding block and the threaded rod respectively.

[0009] Preferably, a cooling box is provided at the bottom of the granulator. The bottom of the cooling box is fixedly connected to the base. A water pump is installed on one side of the inner wall of the cooling box. The water delivery end of the water pump is communicated with a connecting pipe. The end of the connecting pipe extends above the cutting knife and is communicated with a spray head. The spray head is fixedly connected to one side of the granulator. Heat dissipation fins are installed on the inner wall of the cooling box. The heat dissipation fins extend to the outside of the cooling box.

[0010] Preferably, a blower is provided on one side of the heat dissipation fins. The bottom of the blower is fixedly connected to the base.

[0011] Preferably, a screen is installed on one side of the base close to the cutting knife.

[0012] Beneficial effects

[0013] The present utility model provides an automatic cutting device for a twin-screw extrusion granulator. It has the following beneficial effects: When replacing cutting knives of different specifications in the automatic cutting device of the twin-screw extrusion granulator, by rotating the clamping rod, the clamping rod is separated from the clamping groove, so that the fixing rod can be separated from the positioning rod, facilitating the simultaneous disassembly of the cutting knife and the positioning rod at this time. When installing a new cutting knife, the fixing rod of the cutting knife is sleeved on the outer wall of the positioning rod and pushed upward. Due to the slope design at the bottom of the positioning rod and the top of the clamping rod, under the extrusion of the positioning rod, the two clamping rods rotate and move away from each other, thereby ensuring that the positioning rod can be completely inserted into the inside of the fixing rod. Then, under the action of the torsion spring, the clamping rod is inserted into the inside of the clamping groove, realizing the fixation of the positioning rod and the fixing rod, facilitating the selection of cutting knives of different specifications according to actual needs, and the installation and disassembly process is easy to operate and the fixation is effective.

[0014] By adjusting the threaded rod, the elastic member is squeezed, and the elastic member squeezes the grinding block through the pressing force, so that different cutting tools can be ground by adjusting the threaded rod. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the present utility model;

[0016] Figure 2 It is a schematic appearance diagram of the present utility model;

[0017] Figure 3 is Figure 1 a schematic structural diagram of the positioning rod, the fixing mechanism and the servo motor in

[0018] Figure 4 is Figure 1 a schematic structural diagram of the cutting tool, the threaded rod and the plug rod in

[0019] In the figure: 1, base; 2, granulator; 3, feed inlet; 4, cutting tool; 5, servo motor; 6, screen; 7, positioning rod; 8, fixing mechanism; 81, cavity; 82, card slot; 83, fixing rod; 84, clamping device; 841, fixing plate; 842, clamping rod; 843, torsion spring; 9, grinding box; 91, threaded rod; 92, plug rod; 93, elastic member; 94, grinding block; 10, cooling box; 11, heat sink; 12, fan; 13, water pump; 14, connecting pipe; 15, spray head. Detailed Description of the Invention

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0021] However, when the cutting tool is used for a long time, when cutting the granulator, the surface of the cutting tool is easily adhered to the residual material of the granulator, and the cutting tool needs to be replaced. However, the process of replacing the cutting tool is relatively troublesome and will reduce the work efficiency.

[0022] In view of this, the present utility model provides an automatic cutting device for a twin-screw extrusion granulator, which solves the problem that when the cutting tool is used for a long time, when cutting the granulator, the surface of the cutting tool is easily adhered to the residual material of the granulator, and the cutting tool needs to be replaced. However, the process of replacing the cutting tool is relatively troublesome and will reduce the work efficiency.

[0023] Those skilled in the art shall connect the components in this case in sequence. For the specific connection and operation sequence, reference shall be made to the following working principle. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process.

[0024] Example 1: As Figures 1-4 it can be seen that the automatic pelletizing device of the twin-screw extrusion granulator includes a base 1. A granulator 2 is fixedly connected to the surface of the base 1. A feed inlet 3 is opened at the top of the granulator 2. A cutter 4 is arranged on one side of the granulator 2 away from the feed inlet 3. A servo motor 5 is fixedly connected to the outer wall of the cutter 4. The outer wall of the servo motor 5 is fixedly connected to one side of the bottom of the granulator 2. The output end of the servo motor 5 is fixedly connected to a positioning rod 7. One end of the positioning rod 7 is provided with a fixing mechanism 8. The fixing mechanism 8 includes: a fixing rod 83 fixedly connected to the side of the cutter 4 close to the granulator 2; a cavity 81 opened inside the fixing rod 83 and sleeved with the positioning rod 7; a clamping groove 82 arranged inside the cavity 81 and fitting with the positioning rod 7; a clamping device 84 arranged inside the cavity 81 and rotatably connected to the cavity 81 through a pin shaft. Among them, the fixing rod 83 inserts the positioning rod 7 into the inside of the fixing rod 83 by opening the cavity 81, and fixes the positioning rod 7 through the clamping groove 82 and the clamping device 84.

[0025] In the specific implementation process, it is particularly worth noting that the granulator 2 can extrude the internal materials, the cutter 4 can cut the materials extruded by the granulator 2, the model of the servo motor 5 is not limited, and the function of the fixing rod 83 is to replace different cutters 4. The specific working principle is to insert the positioning rod 7 into the cavity 81 inside the fixing rod 83, and the clamping device 84 can fix the positioning rod 7, making it convenient to replace the cutter 4.

[0026] Furthermore, the clamping device 84 includes: a fixing plate 841 penetrating the surface of the fixing rod 83 and movably connected to the cavity 81; a clamping rod 842 fixedly connected to the surface of the fixing plate 841 and rotatably connected to the inner wall of the cavity 81; a torsion spring 843 installed between the clamping rod 842 and the cavity 81. Among them, by rotating the fixing plate 841, the clamping rod 842 can be disengaged from the clamping groove 82, and then the positioning rod 7 can be pulled to play a role in conveniently replacing different cutters 4. By loosening the torsion spring 843, the torsion spring 843 makes the clamping rod 842 more stable in the clamping groove 82.

[0027] In the specific implementation process, it is particularly worth noting that when replacing the cutting tool 4 of different specifications, rotate the clamping rod 842 to separate the clamping rod 842 from the clamping groove 82, so that the fixing rod 83 can be separated from the positioning rod 7, which facilitates the removal of the cutting tool 4 and the positioning rod 7 together at this time. When installing a new cutting tool 4, sleeve the fixing rod 83 of the cutting tool 4 on the outer wall of the positioning rod 7. During this process, due to the slope design on the surfaces of the positioning rod 7 and the clamping rod 842, under the extrusion of the positioning rod 7, the two clamping rods 842 rotate and move away from each other, thus ensuring that the positioning rod 7 can be completely inserted into the interior of the fixing rod 83. Then, under the action of the torsion spring 843, the clamping rod 842 is inserted into the interior of the clamping groove 82 to realize the fixation of the positioning rod 7 and the fixing rod 83, which is convenient to select cutting tools 4 of different specifications according to actual needs, and the installation and disassembly process is easy to operate and the fixation is effective;

[0028] Furthermore, a grinding box 9 is provided at the bottom of the cutting tool 4. The grinding box 9 is fixedly connected to the top of the base 1. Both sides of the inner wall of the grinding box 9 are threadedly connected with threaded rods 91. The threaded rods 91 extend to the outside of the grinding box 9. A plug rod 92 is inserted into the inner wall of the threaded rod 91. An elastic member 93 is sleeved on the outer wall of the plug rod 92. One end of the plug rod 92 close to the cutting tool 4 is fixedly connected with a grinding block 94. Both ends of the elastic member 93 are abutted against the grinding block 94 and the threaded rod 91 respectively;

[0029] In the specific implementation process, it is particularly worth noting that the threaded rod 91 can be adjusted in position through threaded connection, and the elastic member 93 can adjust the position of the grinding block 94 by adjusting the threaded rod 91. The specific working principle is to squeeze the elastic member 93 by adjusting the threaded rod 91, and the elastic member 93 squeezes the grinding block 94 through the abutting force, so as to ensure that when grinding the cutting tool 4, the grinding block 94 can always be in contact with the cutting tool 4, and it can avoid the rotation of the cutting tool 4 caused by excessive clamping force;

[0030] In order to ensure the accurate position of the grinding block 94 relative to the cutting tool 4 and prevent rotation, two or more groups of the threaded rod 91, the plug rod 92 and the elastic member 93 can be arranged on the side of the grinding block 94. In this way, it can be ensured that the grinding block 94 will not rotate, or other effective structures for limiting the non-rotation of the grinding block 94 can also be used. This embodiment only provides schematic drawings and an implementable way, not all embodiments.

[0031] Specifically, when using the automatic granulation cutting device of the twin-screw extrusion granulator, the granulator 2 can extrude the internal materials, the cutting knife 4 can cut the materials extruded by the granulator 2, the model of the servo motor 5 is not limited, and the fixing rod 83 can be used to replace different cutting knives 4. The specific working principle is to insert the positioning rod 7 into the cavity 81 inside the fixing rod 83. The clamping device 84 can fix the positioning rod 7, making it convenient to replace the cutting knife 4. When replacing cutting knives 4 of different specifications, rotate the clamping rod 842 to separate the clamping rod 842 from the clamping groove 82. In this way, the fixing rod 83 can be separated from the positioning rod 7, facilitating the removal of the cutting knife 4 and the positioning rod 7 together at this time. When installing a new cutting knife 4, slip the fixing rod 83 of this cutting knife 4 over the outer wall of the positioning rod 7. During this process, due to the slope design on the surfaces of the positioning rod 7 and the clamping rod 842, under the extrusion of the positioning rod 7, the two clamping rods 842 rotate and move away from each other, ensuring that the positioning rod 7 can be fully inserted into the fixing rod 83. Then, under the action of the torsion spring 843, the clamping rod 842 is inserted into the clamping groove 82, realizing the fixation of the positioning rod 7 and the fixing rod 83, facilitating the selection of cutting knives 4 of different specifications according to actual needs, and the installation and disassembly process is easy to operate and effectively fixed. The threaded rod 91 can adjust its position through threaded connection, and the elastic member 93 can adjust the position of the grinding block 94 by adjusting the threaded rod 91. The specific working principle is to squeeze the elastic member 93 by adjusting the threaded rod 91, and the elastic member 93 squeezes the grinding block 94 through the pressing force, ensuring that when grinding the cutting knife 4, the grinding block 94 can always be in contact with the cutting knife 4, and avoiding the rotation of the cutting knife 4 caused by excessive clamping force.

[0032] Embodiment 2: As Figure 1 and 2 show, a cooling box 10 is provided at the bottom of the granulator 2. The bottom of the cooling box 10 is fixedly connected to the base 1. One side of the inner wall of the cooling box 10 is equipped with a water pump 13. The water delivery end of the water pump 13 is communicated with a connecting pipe 14. The end of the connecting pipe 14 extends above the cutting knife 4 and is communicated with a spray head 15. The spray head 15 is fixedly connected to one side of the granulator 2. A heat sink 11 is installed on the inner wall of the cooling box 10, and the heat sink 11 extends to the outer wall of the cooling box 10;

[0033] In the specific implementation process, it is particularly worth noting that the spray head 15 can cool the cutting knife 4 and the cut materials. The water pump 13 can transfer the coolant in the cooling box 10, and the heat sink 11 can cool the liquid inside the cooling box 10. The model of the water pump 13 is 0510A;

[0034] Furthermore, a blower 12 is provided on one side of the heat sink 11. The bottom of the blower 12 is fixedly connected to the base 1;

[0035] In the specific implementation process, it is particularly worth noting that the surface of the heat sink 11 can be cooled by the fan 12. The heat sink 11 is made of metal and has a heat-conducting material. The model of the fan 12 is YNF-200-2T;

[0036] Furthermore, a screen 6 is installed on one side of the base 1 close to the cutting knife 4;

[0037] In the specific implementation process, it is particularly worth noting that the screen 6 can filter the materials;

[0038] Specifically, on the basis of the above-mentioned Embodiment 1, the nozzle 15 can cool the cutting knife 4 and the cut materials. The water pump 13 can transfer the coolant in the cooling tank 10. The heat sink 11 can cool the liquid inside the cooling tank 10. The model of the water pump 13 is 0510A. The surface of the heat sink 11 can be cooled by the fan 12. The heat sink 11 is made of metal and has a heat-conducting material. The model of the fan 12 is YNF-200-2T. The screen 6 can filter the materials.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation. An element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0040] In the present invention, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection" and the like shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0041] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic pelletizing device for a twin-screw extruder pelletizing machine, comprising a base (1), characterized in that: The surface of the base (1) is fixedly connected to a granulator (2), a feed port (3) is provided on the top of the granulator (2), a cutter (4) is provided on the side of the granulator (2) away from the feed port (3), the outer wall of the cutter (4) is fixedly connected to a servo motor (5), the outer wall of the servo motor (5) is fixedly connected to one side of the bottom of the granulator (2), the output end of the servo motor (5) is fixedly connected to a positioning rod (7), one end of the positioning rod (7) is provided with a fixing mechanism (8), and the fixing mechanism (8) comprises: A fixing rod (83) fixedly connected to a side of the cutter (4) close to the granulator (2); The cavity (81) is formed inside the fixing rod (83) and is sleeved with the positioning rod (7); A card slot (82) is arranged inside the cavity (81) and is fitted with the positioning rod (7); A clamping device (84) is disposed inside the cavity (81) and is rotatably connected to the cavity (81) via a pin shaft; The fixing rod (83) is provided with a cavity (81) so that the positioning rod (7) is inserted into the fixing rod (83), and the positioning rod (7) is fixed by the clamping groove (82) and the clamping device (84).

2. The automatic pelletizing device of the twin-screw extruder granulator according to claim 1, characterized in that: The clamping device (84) comprises: A fixing plate (841) passes through the surface of the fixing rod (83) and is movably connected to the cavity (81); A clamping rod (842) is fixedly connected to the surface of the fixing plate (841) and rotatably connected to the inner wall of the cavity (81); A torsion spring (843) is installed between the clamping rod (842) and the cavity (81); By rotating the fixing plate (841), the clamping rod (842) can be disengaged from the clamping slot (82), and then the positioning rod (7) can be pulled out, so that different cutters (4) can be easily replaced. By loosening the torsion spring (843), the torsion spring (843) makes the clamping rod (842) more stable in the clamping slot (82).

3. The automatic pelletizing device of the twin-screw extruder granulator according to claim 1, characterized in that: A grinding box (9) is provided at the bottom of the cutter (4), and the grinding box (9) is fixedly connected to the top of the base (1). Both sides of the inner wall of the grinding box (9) are threadedly connected to threaded rods (91), and the threaded rods (91) extend to the outside of the grinding box (9). The inner wall of the threaded rod (91) is plugged with an insertion rod (92), and the outer wall of the insertion rod (92) is sleeved with an elastic member (93). The end of the insertion rod (92) close to the cutter (4) is fixedly connected to a grinding block (94), and the two ends of the elastic member (93) are respectively tightly pressed against the grinding block (94) and the threaded rod (91).

4. The automatic pelletizing device of the twin-screw extruder granulator according to claim 1, characterized in that: A cooling box (10) is provided at the bottom of the granulator (2), the bottom of the cooling box (10) is fixedly connected to the base (1), a water pump (13) is installed on one side of the inner wall of the cooling box (10), the water delivery end of the water pump (13) is connected to a connecting pipe (14), the end of the connecting pipe (14) extends to the top of the cutter (4) and is connected to a nozzle (15), the nozzle (15) is fixedly connected to one side of the granulator (2), and a heat sink (11) is installed on the inner wall of the cooling box (10), and the heat sink (11) extends to the outer wall of the cooling box (10).

5. The automatic pelletizing device of the twin-screw extruder granulator according to claim 4, characterized in that: A fan (12) is provided on one side of the heat sink (11), and the bottom of the fan (12) is fixedly connected to the base (1).

6. The automatic pelletizing device of the twin-screw extruder granulator according to claim 1, characterized in that: A screen (6) is installed on one side of the base (1) close to the cutter (4).

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