Material extrusion device

Abstract

The utility model provides a material extrusion device. The material extrusion device comprises an extrusion barrel and a telescopic mechanism which are horizontally installed on a rack. One end of the extruding barrel is connected with the power output end of the telescopic mechanism, and the other end is connected with the forming end cover; a material extruding piston is arranged in the material extruding barrel and is connected with the power output end of the telescopic mechanism; the extruding barrel is also communicated with the discharging mechanism; a cut-off mechanism is further arranged at the position, close to the end face of the forming end cover, of the rack and used for cutting off materials extruded by the forming end cover. According to the device, the material extruding barrel and the telescopic mechanism connected with the material extruding barrel are arranged, and the telescopic mechanism stretches out and draws back to drive a material extruding piston in the material extruding barrel to do reciprocating motion so that materials can be extruded out through a forming opening in a forming end cover; according to the device, through cooperative use of the devices, materials are extruded in a piston mode, and the defect that in a traditional screw extrusion mode, when the particles are extruded, the particles are crushed due to high-pressure extrusion, and the selling condition is affected is overcome.

Description

Technical Field

[0001] The present application relates to the field of food processing technology, and in particular to a material extrusion device. Background Art

[0002] Broomcorn millet, belonging to the genus Panicum of the Poaceae family, is an annual herbaceous cereal crop. Native to northern China, it is an ancient Chinese grain and brewing crop, listed as one of the five cereals. It is widely distributed in the arid areas of northern China and is cultivated as a daily food in Hebei, Shanxi, northern Shaanxi, Inner Mongolia, Gansu, and northern Northeast China. A variety of foods have been developed based on broomcorn millet, such as pastries. When making broomcorn millet food, there are methods of grinding broomcorn millet into flour and then making pastries. There are also methods of steaming broomcorn millet, mixing it with other auxiliary materials while it is still hot, and then dividing and extruding it into pastry blocks of appropriate sizes for processing. The traditional production method is to mix the steamed broomcorn millet with auxiliary materials, place it in a corresponding mold, press it into blocks, and then cut it into pastries of appropriate sizes. However, this method often requires manual operation, and inevitably leads to low production efficiency. Therefore, some manufacturers also use extrusion devices to extrude the material from the forming port through extrusion, and then cut it into blocks of suitable size. However, in the existing method, screw extrusion is mostly used to extrude the material. When extruding granular materials, such as when producing pastries with steamed millet as raw material, the screw extruder will reduce the pitch of the spiral belt on the screw near the outlet to ensure a certain material extrusion pressure during the extrusion process, thereby increasing the extrusion pressure. This will cause the granular material to be broken under this high-pressure extrusion, resulting in a poor appearance of the extruded material, affecting the sales quality. Utility Model Content

[0003] The present application provides a material extrusion device to solve the problem of the existing method of using a screw to extrude materials, in which the high-pressure extrusion causes the granular materials to break and affect the appearance of the granular materials for sale.

[0004] The present application provides a material extrusion device, comprising an extrusion barrel and a telescopic mechanism horizontally mounted on a frame;

[0005] One end of the extruder is connected to the power output end of the telescopic mechanism, and the other end is connected to the forming end cover;

[0006] An extrusion piston is provided in the extrusion barrel, and the extrusion piston is connected to the power output end of the telescopic mechanism;

[0007] The extrusion barrel is also connected to the feeding mechanism;

[0008] A cutting mechanism is also provided on the frame near the end face of the forming end cover to cut off the material extruded from the forming end cover;

[0009] A first conveyor belt is provided below the formed end cap, and a second conveyor belt is provided below the transmission terminal of the first conveyor belt;

[0010] The cutting mechanism includes a first motor and a cutting blade rotatably connected to the first motor;

[0011] The rotation path of the cutting blade is close to the outer end surface of the formed end cover.

[0012] Optionally, the discharge mechanism includes a discharge hopper and a discharge pipe connecting the discharge hopper and the extrusion cylinder;

[0013] The lower hopper is divided into multiple lower hoppers by vertical partitions;

[0014] The partition is arranged radially toward the inner wall of the lower hopper with the central axis of the lower hopper as the center.

[0015] Optionally, a feeding auger is vertically arranged in the discharge pipe, and the rotating shaft of the feeding auger is also connected to the power output end of the second motor;

[0016] The rotating shaft is arranged through the central axis of the lower hopper and is rotatably connected to the partition;

[0017] The second motor is fixed on the frame through a bracket.

[0018] Optionally, a belt cleaning device is provided below the first conveyor belt.

[0019] Optionally, the belt cleaning device includes a cleaner and a receiving tank;

[0020] The washer is connected to the water pump through a pipeline, and the output end of the washer is inclined toward the lower surface of the first conveyor belt;

[0021] The receiving tank is arranged at a position close to the output end of the washer, and is connected to the water pump through a pipeline.

[0022] Optionally, the washer includes a water collection tank and a plurality of first nozzles;

[0023] One side of the water collecting tank is connected to the water pump through a pipeline, and the other end is connected to a plurality of first nozzles.

[0024] Optionally, a blade cleaning mechanism is also provided on the frame;

[0025] The blade cleaning mechanism includes a second nozzle, which is connected to a vertically arranged water supply pipe through an elbow;

[0026] The second nozzle is arranged close to a side surface of the cutting blade, and the spraying direction of the second nozzle is toward the rotating surface of the cutting blade;

[0027] A liquid receiving tank is provided below the spraying direction of the second nozzle;

[0028] The liquid receiving tank is connected to the water supply pipe through a circulation pump.

[0029] The present application provides a material extrusion device, which is provided with an extrusion barrel and a telescopic mechanism connected to the extrusion barrel. The telescopic mechanism drives the reciprocating motion of the extrusion piston in the extrusion barrel to extrude the material through the forming opening on the forming end cover. The device of the present application uses the above-mentioned devices in conjunction to perform piston-like extrusion of the material, thereby overcoming the disadvantage of the traditional screw extrusion method, in which the high-pressure extrusion causes the granular material to break when extruding the granular material, affecting the sales appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0031] Figure 1 This is a schematic diagram of the main structure of a material extrusion device provided in one embodiment of the present application;

[0032] Figure 2 A schematic structural diagram of an extrusion barrel provided in one embodiment of the present application;

[0033] Figure 3 A schematic diagram of the three-dimensional structure of a material extrusion device provided in one embodiment of the present application;

[0034] Figure 4 A schematic diagram of the three-dimensional structure of a blanking mechanism provided in one embodiment of the present application;

[0035] Figure 5 A schematic diagram of the three-dimensional structure of a material extrusion device provided in another embodiment of the present application;

[0036] Figure 6 A schematic diagram of the three-dimensional structure of a belt cleaning device provided in one embodiment of the present application;

[0037] Figure 7 A schematic diagram of the three-dimensional structure of a material extrusion device provided in another embodiment of the present application;

[0038] Figure 8 A schematic diagram of the three-dimensional structure of a blade cleaning mechanism provided in one embodiment of the present application.

[0039] Description of reference numerals:

[0040] 1. Extrusion barrel; 2. Telescopic mechanism; 3. Discharging mechanism; 4. Cutting mechanism; 5. First conveyor belt; 6. Second conveyor belt; 7. Belt cleaning device; 8. Blade cleaning mechanism; 11. Forming end cover; 31. Hopper; 32. Discharging pipe; 33. Partition; 34. Feeding auger; 35. Second motor; 41. First motor; 42. Cutting blade; 71. Cleaner; 72. Receiving tank; 73. Water pump; 81. Second nozzle; 82. Water supply pipe; 83. Liquid receiving tank; 84. Circulation pump; 341. Rotating shaft; 711. Water collecting tank; 712. First nozzle. DETAILED DESCRIPTION

[0041] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application are clearly and completely described below. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts also fall within the scope of protection of this application.

[0042] like Figures 1 to 3 As shown, the present application provides a material extrusion device, comprising an extrusion barrel 1 and a telescopic mechanism 2 horizontally mounted on a frame;

[0043] One end of the extruder 1 is connected to the power output end of the telescopic mechanism 2, and the other end is connected to the forming end cover 11;

[0044] An extrusion piston 10 is provided in the extrusion barrel 1, and the extrusion piston 10 is connected to the power output end of the telescopic mechanism 2;

[0045] The extrusion cylinder 1 is also connected to the feeding mechanism 3;

[0046] A cutting mechanism 4 is also provided on the frame near the end surface of the formed end cover 11 for cutting the material extruded from the formed end cover 11;

[0047] A first conveyor belt 5 is provided below the formed end cap 11, and a second conveyor belt 6 is provided below the transmission terminal of the first conveyor belt 5;

[0048] The cutting mechanism 4 includes a first motor 41 and a cutting blade 42 rotatably connected to the first motor 41;

[0049] The rotation path of the cutting blade 42 is in close contact with the outer end surface of the molded end cover 11 .

[0050] In the present application, the length of the extrusion piston 10 should be at least sufficient to block the opening at the connection between the discharge mechanism 3 and the extrusion barrel 1. During use, the extrusion piston 10 reciprocates in the extrusion barrel 1 driven by the telescopic mechanism 2. When the telescopic mechanism 2 is fully retracted, the extrusion piston 10 should be able to completely expose the opening at the connection between the discharge mechanism 3 and the extrusion barrel 1. When the telescopic mechanism 2 is extended, the extrusion piston 10 should be able to block the opening at the connection between the discharge mechanism 3 and the extrusion barrel 1 to prevent leakage.

[0051] During use, the material to be extruded (such as steamed millet, glutinous rice or other hot materials) is added to the discharge mechanism 3. At this time, the telescopic mechanism 2 (in this application, the telescopic mechanism 2 is, for example, an electric cylinder or a pneumatic cylinder) is started, and the power output end of the telescopic mechanism 2 is connected to the extrusion piston 10 provided in the extrusion barrel 1. The telescopic mechanism 2 can drive the extrusion piston 10 to reciprocate in the extrusion barrel 1, and the extrusion piston 10 squeezes the input material toward the forming end cover 11.

[0052] The material is squeezed out from the forming opening opened on the forming end cover 11. When it is extruded to a certain length, the first motor 41 (in this application, the first motor 41 is, for example, a stepping motor) starts to operate, driving the cutting blade 42 in the cutting mechanism 4 to rotate, cutting off the extruded material. The cut material falls onto the first conveyor belt 5 and is conveyed by the first conveyor belt 5 to the direction of the transmission terminal away from the extrusion barrel 1.

[0053] When the material reaches the end of the first conveyor belt 5, the belt on the conveyor belt rotates back, causing the material on the first conveyor belt 5 to fall. The fallen material lands on the second conveyor belt 6 below the first conveyor belt 5. The second conveyor belt 6 is equipped with a storage box to receive the material that falls from the first conveyor belt 5. The storage box corresponds to the cut material one by one. The material that falls into the storage box is transported to the end of the second conveyor belt 6 for subsequent packaging and other operations.

[0054] The present application provides a material extrusion device, which is provided with an extrusion barrel 1 and a telescopic mechanism 2 connected to the extrusion barrel 1. The telescopic mechanism 2 drives the reciprocating motion of the extrusion piston 10 in the extrusion barrel 1 to extrude the material through the forming opening on the forming end cover 11, and a cutting mechanism 4 is provided to cut the extruded material into suitable sizes. The device of the present application uses the above-mentioned devices in conjunction to perform piston-like extrusion of the material, thereby overcoming the disadvantage of the traditional screw extrusion method, in which the high-pressure extrusion causes the granular material to break, affecting the sales appearance.

[0055] like Figure 4 As shown, optionally, the discharge mechanism 3 includes a discharge hopper 31 and a discharge pipe 32 connecting the discharge hopper 31 and the extrusion cylinder 1;

[0056] The lower hopper 31 is divided into multiple lower hoppers by vertical partitions 33;

[0057] The partitions 33 are radially arranged toward the inner wall of the lower hopper 31 with the central axis of the lower hopper 31 as the center.

[0058] In the present application, the lower hopper 31 is divided into multiple lower hoppers by vertical partitions 33. When a variety of different materials need to be mixed and extruded, the materials can be added to the lower hoppers separately for feeding.

[0059] like Figure 4 As shown, optionally, a feeding auger 34 is vertically provided in the feeding pipe 32, and the rotating shaft 341 of the feeding auger 34 is also connected to the power output end of the second motor 35;

[0060] The rotating shaft 341 passes through the central axis of the lower hopper 31 and is rotatably connected to the partition 33;

[0061] The second motor 35 is fixed to the frame via a bracket.

[0062] Since the material has a high viscosity, it may be difficult to add the material into the extrusion barrel 1 directly through the discharge pipe 32. Therefore, a feeding auger 34 is provided to transport the material to the extrusion barrel 1 to prevent the situation where the material is difficult to discharge due to excessive viscosity. In addition, the feeding auger 34 can also be used to mix multiple materials during transportation, thereby reducing the labor of additional mixing of materials.

[0063] like Figure 5 As shown, optionally, a belt cleaning device 7 is provided below the first conveyor belt 5 .

[0064] In this application, since these materials have high viscosity, after the first conveyor belt 5 transfers the materials to the transportation terminal, some of the materials will adhere to the belt surface of the first conveyor belt 5. If not handled, the belt will be contaminated. Therefore, a belt cleaning device 7 is set under the first conveyor belt 5 to clean the material residues adhering to the belt surface.

[0065] like Figure 6 As shown, optionally, the belt cleaning device 7 includes a cleaner 71 and a receiving groove 72;

[0066] The washer 71 is connected to the water pump 73 through a pipeline, and the output end of the washer 71 is inclined toward the lower surface of the first conveyor belt 5;

[0067] The receiving tank 72 is provided at a position close to the output end of the washer 71 , and the receiving tank 72 is connected to the water pump 73 through a pipeline.

[0068] During use, the belt surface is rinsed with water sprayed from the washer 71, while the receiving tank 72 receives and recovers the water used to rinse the belt. The water in the receiving tank 72 is transferred to the washer 71 through the water pump 73 and then sprayed out. During use, a filter can be installed on the pipe connecting the receiving tank 72 and the water pump 73 to filter out material residues in the water. At the same time, the water should be changed regularly to ensure the cleanliness of the washing water.

[0069] like Figure 6 As shown, optionally, the washer 71 includes a water collection tank 711 and a plurality of first nozzles 712;

[0070] One side of the water collecting tank 711 is connected to the water pump 73 via a pipe, and the other end is connected to the plurality of first nozzles 712 .

[0071] In the present application, when in use, the water sprayed from the first nozzle 712 in the cleaner 71 can be used to rinse the belt surface, while at the same time the receiving tank 72 receives and recovers the water used to rinse the belt. The water in the receiving tank 72 is transferred to the water collecting tank 711 through the water pump 73 and then sprayed out through the first nozzle 712.

[0072] like Figure 7 and Figure 8 As shown, optionally, a blade cleaning mechanism 8 is also provided on the frame;

[0073] The blade cleaning mechanism 8 includes a second nozzle 81, which is connected to a vertically arranged water supply pipe 82 through an elbow;

[0074] The second nozzle 81 is disposed close to one side of the cutting blade 42 , and the spraying direction of the second nozzle 81 is toward the rotating surface of the cutting blade 42 ;

[0075] A liquid receiving tank 83 is provided below the spraying direction of the second nozzle 81;

[0076] The liquid receiving tank 83 is connected to the water supply pipe 82 via a circulation pump 84 .

[0077] In the present application, during use, due to the high viscosity of the materials, the cutting blade 42 will inevitably adhere to the materials during the cutting process. If not handled, this will affect the cutting effect of the cutting blade 42, resulting in uneven sizes of the materials cut by the blade. Therefore, a blade cleaning mechanism 8 is provided. The second nozzle 81 provided in the blade cleaning mechanism 8 can spray clean water onto the cutting blade 42 to clean the cutting blade 42 and keep it moist, thereby ensuring that the cutting blade 4 can continue to operate. The clean water sprayed by the second nozzle 81 is received and recovered by the liquid receiving tank 83. The water in the liquid receiving tank 83 can be transferred to the second nozzle 81 through the circulation pump 84 for recycling. A filter can be provided at the inlet of the pipe connecting the liquid receiving tank 83 and the circulation pump 84 to filter out the material residue washed away by the clean water, preventing such residue from entering the circulation pump 84 and damaging the circulation pump 84. At the same time, the water should be changed regularly to ensure the cleanliness of the cleaning water.

[0078] A material extrusion device, the working process of which is as follows:

[0079] During use, the material to be extruded (such as steamed millet, glutinous rice and other hot materials) is added to the hopper 31. When there are multiple materials to be extruded, these materials can be added separately from the discharge bin separated by the partition 33 in the hopper 31. At the same time, the second motor 35 is started. When the added material enters the discharge pipe 32, the second motor 35 drives the feeding auger 34 through the rotating shaft 341 to transfer the material into the extrusion barrel 1. These materials can also be mixed during the feeding process of the feeding auger 34. At this time, the telescopic mechanism 2 is started (in this application, the telescopic mechanism 2 is, for example, an electric cylinder or a pneumatic cylinder). The power output end of the telescopic mechanism 2 is connected to the extrusion piston 10 provided in the extrusion barrel 1. The telescopic mechanism 2 can drive the extrusion piston 10 to reciprocate in the extrusion barrel 1. The extrusion piston 10 squeezes the material input by the feeding auger 34 in the direction close to the forming end cover 11.

[0080] The material is squeezed out from the forming opening opened on the forming end cover 11. When it is extruded to a certain length, the first motor 41 (in this application, the first motor 41 is, for example, a stepping motor) starts to operate, driving the cutting blade 42 in the cutting mechanism 4 to rotate, cutting off the extruded material. The cut material falls onto the first conveyor belt 5 and is conveyed by the first conveyor belt 5 to the direction of the transmission terminal away from the extrusion barrel 1.

[0081] When the material reaches the end of the first conveyor belt 5, the belt on the conveyor belt rotates back, causing the material on the first conveyor belt 5 to fall. The fallen material lands on the second conveyor belt 6 below the first conveyor belt 5. The second conveyor belt 6 is equipped with a storage box to receive the material that falls from the first conveyor belt 5. The storage box corresponds to the cut material one by one. The material that falls into the storage box is transported to the end of the second conveyor belt 6 for subsequent packaging and other operations.

[0082] Since these materials are highly viscous, the cutting blades 42 will inevitably adhere to them during the process of cutting them. If not handled, this will affect the cutting effect of the cutting blades 42, resulting in uneven sizes of the materials cut by the blades. Therefore, a blade cleaning mechanism 8 is provided. The second nozzle 81 provided in the blade cleaning mechanism 8 can spray clean water onto the cutting blades 42, thereby cleaning the cutting blades 42 and keeping the cutting blades 42 moist, thereby ensuring that the cutting blades 4 can continue to work. The clean water sprayed by the second nozzle 81 is received and recovered by the liquid receiving tank 83. The water in the liquid receiving tank 83 can be transferred to the second nozzle 81 through the circulation pump 84 for recycling. A filter can be provided at the inlet of the pipe connecting the liquid receiving tank 83 and the circulation pump 84 to filter the material residues washed away by the clean water, thereby preventing these residues from entering the circulation pump 84 and damaging the circulation pump 84.

[0083] Because these materials have high viscosity, some of them will adhere to the surface of the first conveyor belt 5 after the first conveyor belt 5 transfers them to the transport terminal. If left untreated, this will cause belt contamination. Therefore, a belt cleaning device 7 is installed below the first conveyor belt 5. The belt surface is rinsed with water sprayed from the first nozzle 712 in the cleaning device 71, while the receiving tank 72 collects and recovers the water used for washing the belt. The water in the receiving tank 72 is transferred to the water collection tank 711 through the water pump 73 and then sprayed out through the first nozzle 712. During use, a filter can be installed in the pipe connecting the receiving tank 72 and the water pump 73 to filter out material residues in the water.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A material extrusion device, characterized in that: It comprises an extrusion barrel (1) and a telescopic mechanism (2) mounted horizontally on a frame; One end of the extrusion barrel (1) is connected to the power output end of the telescopic mechanism (2), and the other end is connected to the forming end cover (11); An extrusion piston (10) is provided in the extrusion barrel (1), and the extrusion piston (10) is connected to the power output end of the telescopic mechanism (2); The extrusion cylinder (1) is also connected to the feeding mechanism (3); A cutting mechanism (4) is also provided on the frame near the end surface of the formed end cover (11) for cutting off the material extruded from the formed end cover (11); A first conveyor belt (5) is provided below the molded end cover (11), and a second conveyor belt (6) is further provided below the transmission terminal of the first conveyor belt (5); The cutting mechanism (4) comprises a first motor (41) and a cutting blade (42) rotatably connected to the first motor (41); The rotation path of the cutting blade (42) is in close contact with the outer end surface of the molded end cover (11).

2. The material extrusion device according to claim 1, characterized in that: The discharge mechanism (3) comprises a discharge hopper (31) and a discharge pipe (32) communicating with the discharge hopper (31) and the extrusion cylinder (1); The lower hopper (31) is divided into a plurality of lower hoppers by vertically arranged partitions (33); The partition (33) is radially arranged toward the inner wall of the lower hopper (31) with the central axis of the lower hopper (31) as the center.

3. The material extrusion device according to claim 2, characterized in that: A feeding auger (34) is also vertically arranged in the feeding pipe (32), and the rotating shaft (341) of the feeding auger (34) is also connected to the power output end of the second motor (35); The rotating shaft (341) is arranged through the central axis of the lower hopper (31) and is rotatably connected to the partition (33); The second motor (35) is fixed on the frame via a bracket.

4. The material extrusion device according to claim 1, characterized in that: A belt cleaning device (7) is provided below the first conveyor belt (5).

5. The material extrusion device according to claim 4, characterized in that: The belt cleaning device (7) comprises a cleaner (71) and a receiving groove (72); The cleaning device (71) is connected to the water pump (73) through a pipeline, and the output end of the cleaning device (71) is inclined toward the lower surface of the first conveyor belt (5); The receiving groove (72) is arranged at a position close to the output end of the washer (71), and the receiving groove (72) is connected to the water pump (73) through a pipeline.

6. The material extrusion device according to claim 5, characterized in that: The washer (71) includes a water collecting tank (711) and a plurality of first nozzles (712); One side of the water collecting tank (711) is connected to the water pump (73) via a pipeline, and the other end is connected to a plurality of first nozzles (712).

7. The material extrusion device according to any one of claims 1 to 6, characterized in that: The frame is also provided with a blade cleaning mechanism (8); The blade cleaning mechanism (8) includes a second nozzle (81), and the second nozzle (81) is connected to a vertically arranged water supply pipe (82) through a bend pipe; The second nozzle (81) is arranged close to a side surface of the cutting blade (42), and the spraying direction of the second nozzle (81) is toward the rotating surface of the cutting blade (42); A liquid receiving tank (83) is provided below the spraying direction of the second nozzle (81); The liquid receiving tank (83) is connected to the water supply pipe (82) through a circulation pump (84).

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