Rotating shaft type food slurry extrusion device

Abstract

The invention relates to the technical field of food processing, and discloses a rotating shaft type food slurry extrusion device which comprises an extruder body and a fixed ring, the rotating shaft type food slurry extrusion device is fixed around a discharge pipe through a movable ring and the fixed ring, airflow generated by a fan and heat exchange efficiency enhanced by heat dissipation fins are matched, quick and uniform cooling of slurry is achieved, and the extrusion efficiency is improved. The device not only avoids instability in shape and size caused by too high temperature in the extrusion process of slurry, ensures that the texture and taste of biscuit finished products reach highly unified standards, but also prevents the discharge pipe from being damaged possibly due to local overheating, and improves the stability and durability of the whole production line to a certain extent, and in addition, the production efficiency is improved. According to the cooling structure design, the maintenance convenience is considered, so that daily cleaning and maintenance work is simpler and quicker, the non-planned downtime in the production process is shortened, and the continuous operation capacity of a production line is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of food processing, and particularly to a rotating shaft type food slurry extrusion device. Background Art

[0002] A rotating shaft type extruder is a common food processing machine, mainly used for transporting, mixing, shearing, and compressing materials such as dough or slurry through one or more rotating shafts, and finally extruding the materials into products with the required shape and size;

[0003] In the existing biscuit production process, a rotating shaft type extruder is widely used to extrude biscuit slurry into the required shape. However, in this process, the temperature control of the slurry is a key and challenging problem. The slurry generates heat due to mechanical friction and shearing during the extrusion process, resulting in an increase in the slurry temperature. This increase in temperature may lead to the following problems: the instability of the shape and size of the extruded slurry. Excessive slurry temperature may cause changes in the shape and size of the extruded material, thereby affecting the texture and taste of the biscuit finished product, making it difficult to achieve a unified standard for product quality. And local overheating of the discharge pipe may damage the discharge pipe of the extruder, reducing the stability and durability of the production line. The existing cooling structures are often complex in design, resulting in difficulties in daily cleaning and maintenance work, increasing the unplanned downtime, and raising the maintenance cost. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a rotating shaft type food slurry extrusion device. The present invention is fixed around the discharge pipe through a movable ring and a fixed ring, and cooperates with the airflow generated by a blower and the heat exchange efficiency enhanced by heat dissipation fins to achieve rapid and uniform cooling of the slurry. This not only avoids the instability of the shape and size caused by excessive temperature during the extrusion of the slurry, ensures that the texture and taste of the biscuit finished product reach a high unified standard, but also prevents the damage that may occur to the discharge pipe due to local overheating, and to a certain extent improves the stability and durability of the entire production line. In addition, the cooling structure design of the present invention takes into account the convenience of maintenance, making daily cleaning and maintenance work simpler and faster. This not only reduces the unplanned downtime during the production process, improves the continuous operation ability of the production line, but also reduces the maintenance cost in the long run. This efficient cooling process not only improves the production efficiency of biscuits, but also realizes a more environmentally friendly and economical product manufacturing process by reducing energy consumption and material waste.

[0006] (2) Technical Solutions

[0007] To solve the above technical problems, the present invention provides the following technical solution: A shaft-type food slurry extrusion device, comprising an extruder body and a fixed ring. Above the inner side of the extruder body, a feeding pipe is fixedly connected. At the bottom end of the feeding pipe, a material distribution valve is fixedly connected. One end of the material distribution valve away from the feeding pipe is fixedly connected with a feeding plate. At the bottom of the feeding plate, a hollow pipe is fixedly connected. At the bottom of the hollow pipe, a fixed rail is fixedly connected. On the outer end face of the fixed rail, an air pump is fixedly connected. At the bottom of the hollow pipe, a discharge pipe is fixedly connected. On the outer side below the discharge pipe, a limiting ring is fixedly connected. At the front end of the fixed ring, a hinge is fixedly connected. One end of the hinge away from the fixed ring is fixedly connected with a movable ring. At the top end behind the fixed ring, a magnetic strip is fixedly connected. Inside the fixed ring and the movable ring, graphene heat-conducting sheets are fixedly connected. On the outer end face of the fixed ring, a connecting plate is fixedly connected. On the end face of the connecting plate away from the fixed ring, heat dissipation fins are fixedly connected. At the bottom of the outer side of the fixed rail, a mounting plate is fixedly connected. At the top end inside the mounting plate, a fan is fixedly connected. The output end of the fan is fixedly connected with an air delivery pipe. One end of the air delivery pipe away from the fan is fixedly connected with an air outlet plate. In the middle of the bottom of the air outlet plate, an air outlet is provided.

[0008] Preferably, the inside of the fixed rail is fixedly connected to the outer side above the discharge pipe. The output end of the air pump is connected and communicated with the upper part inside the discharge pipe. One end face of the magnetic strip away from the fixed ring is magnetically fixed to the top end behind the movable ring. The inner sides of the fixed ring and the movable ring are both in contact with the lower surface of the discharge pipe. The bottoms of the fixed ring and the movable ring are both in contact with the top of the limiting ring. The top of the fan is in contact with the bottom of the fixed rail. The top of the air outlet plate is in contact with the bottom of the fixed rail. By fixing the movable ring and the fixed ring around the discharge pipe, and cooperating with the airflow generated by the fan and the enhanced heat exchange efficiency of the heat dissipation fins, rapid and uniform cooling of the slurry is achieved. Not only is the instability in shape and size during the extrusion process due to excessive temperature avoided, but also the texture and taste of the biscuit finished products are ensured to reach a highly unified standard.

[0009] Preferably, the number of the feeding plate, the hollow pipe and the fixed rail at its bottom is two groups, and the feeding plate, the hollow pipe and the fixed rail are all distributed on the left and right sides in the middle of the inner side of the extruder body. The number of the discharge pipes and the air pumps is the same. The discharge pipes are evenly distributed from front to back at the bottom of the hollow pipe, and the air pumps are evenly distributed from front to back on the outer end face of the fixed rail.

[0010] Preferably, the connecting plates are distributed at the outer side positions of the discharge pipes, and the number and distribution positions of the fixed rings on the inner end faces of the connecting plates match the number and distribution positions of the discharge pipes. The front-to-back length of the connecting plates matches the front-to-back length between the discharge pipes, which is used to uniformly connect and fix the fixed rings, facilitating the subsequent disassembly and installation of the fixed rings.

[0011] Preferably, the cross-sectional shapes of the fixed ring and the movable ring are both semi-circular, and the combined diameter of the fixed ring and the movable ring matches the diameter of the cross-section of the discharge pipe, allowing the fixed ring and the movable ring to be combined outside the discharge pipe, so that the heat on the surface of the discharge pipe can be transferred to the connecting plate and the heat dissipation fins.

[0012] Preferably, the area of the graphene heat-conducting sheet matches the area of the inner sides of the fixed ring and the movable ring, and the thickness of the graphene heat-conducting sheet is uniformly 0.3 mm. The graphene heat-conducting sheet has a heat-conducting effect, enhancing the efficiency of heat transfer.

[0013] Preferably, the movable ring is made of iron, and the fixed ring, the connecting plate, and the heat dissipation fins are all made of copper. The top position at the rear of the movable ring can be magnetically attracted and fixed by a magnetic strip. The movable ring and the fixed ring are magnetically attracted and fixed by the magnetic strip, which is convenient for subsequent disassembly and installation, making the daily cleaning and maintenance work simpler and faster.

[0014] Preferably, the number of the blowers is two groups, and the blowers are distributed at the top positions on the front and rear sides of the air outlet plate. The air outlet ends of the blowers correspond to the front and rear ends of the air outlet plate, which can enhance the air input by the blowers into the air outlet plate, avoiding setting only one blower, because the air outlet plate is too long, resulting in difficulty for the air to be discharged from the air outlet at the other end of the air outlet plate.

[0015] Preferably, the air outlet plate is located directly above the heat dissipation fins, and the front and rear lengths of the air outlet plate are the same as the distance between the top positions on the front and rear sides of the heat dissipation fins. The number of air outlets opened at the bottom of the air outlet plate is the same as the number of heat dissipation fins, and several air outlets opened at the bottom of the air outlet plate are perpendicular to the heat dissipation fins. One air outlet corresponds to one heat dissipation fin, which can effectively achieve the cooling effect on the heat dissipation fins.

[0016] Compared with the prior art, the present invention provides a rotating shaft type food slurry extrusion device, which has the following beneficial effects:

[0017] Compared with the prior art, in the present invention, an active ring and a fixed ring are fixed around the discharge pipe, and the heat exchange efficiency is enhanced by the airflow generated by the fan and the heat dissipation fins, achieving rapid and uniform cooling of the slurry. This not only avoids the instability of the shape and size of the slurry during the extrusion process due to excessive temperature, ensuring that the texture and taste of the biscuit finished products reach a high unified standard, but also prevents the damage that may occur to the discharge pipe due to local overheating, improving the stability and durability of the entire production line to a certain extent. In addition, the cooling structure design of the present invention takes into account the convenience of maintenance, making the daily cleaning and maintenance work simpler and faster. This not only reduces the unplanned downtime during the production process, improves the continuous operation ability of the production line, but also reduces the maintenance cost in the long run. This efficient cooling process not only improves the production efficiency of biscuits, but also realizes a more environmentally friendly and economical product manufacturing process by reducing energy consumption and material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the longitudinal sectional structure of the front end of the overall feeding plate of the present invention;

[0020] Figure 3 is a schematic diagram of the exploded structure of the connecting plate of the present invention;

[0021] Figure 4 is a schematic diagram of the overall structure of the fixed ring and the active ring of the present invention;

[0022] Figure 5 is a schematic diagram of the longitudinal sectional structure of both the right end and the front end of the air outlet plate of the present invention;

[0023] Figure 6 is a schematic diagram of the overall structure of the discharge pipe of the present invention.

[0024] Wherein: 1. Extruder body; 2. Feeding pipe; 3. Feeding plate; 4. Diverting valve; 5. Hollow pipe; 6. Fixed rail; 7. Air pump; 8. Discharge pipe; 9. Active ring; 10. Fan; 11. Mounting plate; 12. Air delivery pipe; 13. Air outlet plate; 14. Fixed ring; 15. Connecting plate; 16. Heat dissipation fins; 17. Hinge; 18. Graphene heat conducting sheet; 19. Magnetic strip; 20. Air outlet; 21. Limiting ring. DETAILED DESCRIPTION OF THE INVENTION

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment 1:

[0027] Please refer to Figures 1 - 6 as shown:

[0028] A shaft-type food slurry extrusion device includes an extruder body 1 and a fixing ring 14. Above the inner side of the extruder body 1, a feeding pipe 2 is provided. The bottom end of the feeding pipe 2 is connected to a distribution valve 4 through a flange. One end of the distribution valve 4 away from the feeding pipe 2 is connected to a feeding plate 3 through a flange. The bottom of the feeding plate 3 is penetrated and fixed by a hollow pipe 5. The bottom of the hollow pipe 5 is connected to a fixing rail 6 through bolts. The outer end face of the fixing rail 6 is connected to an air pump 7 through bolts. The bottom of the hollow pipe 5 is connected to a discharge pipe 8 through a flange. Outside the lower part of the discharge pipe 8, a limiting ring 21 is welded. The front end of the fixing ring 14 is connected to a hinge 17 through screws. One end of the hinge 17 away from the fixing ring 14 is connected to a movable ring 9 through screws. At the top rear of the fixing ring 14, a magnetic strip 19 is provided. Graphene heat-conducting sheets 18 are adhesively fixed on the inner sides of the fixing ring 14 and the movable ring 9. The outer end face of the fixing ring 14 is welded to a connecting plate 15. One end face of the connecting plate 15 away from the fixing ring 14 is welded to heat dissipation fins 16. At the bottom outside of the fixing rail 6, a mounting plate 11 is connected through bolts. At the top inner side of the mounting plate 11, a blower 10 is welded. An air delivery pipe 12 is provided at the output end of the blower 10. One end of the air delivery pipe 12 away from the blower 10 is provided with an air outlet plate 13. An air outlet 20 is opened in the middle at the bottom of the air outlet plate 13. The inside of the fixing rail 6 is fixedly connected to the outside above the discharge pipe 8. The output end of the air pump 7 is connected and communicated with the inside above the discharge pipe 8. One end face of the magnetic strip 19 away from the fixing ring 14 is magnetically fixed to the top rear of the movable ring 9. The inner sides of the fixing ring 14 and the movable ring 9 are both in contact with the lower surface of the discharge pipe 8. The bottoms of the fixing ring 14 and the movable ring 9 are both in contact with the top of the limiting ring 21. The top of the blower 10 is in contact with the bottom of the fixing rail 6. The top of the air outlet plate 13 is in contact with the bottom of the fixing rail 6.

[0029] In this embodiment: By fixing the movable ring 9 and the fixing ring 14 around the discharge pipe 8, and cooperating with the air flow generated by the blower 10 and the enhanced heat exchange efficiency of the heat dissipation fins 16, rapid and uniform cooling of the slurry is achieved. Not only is the instability in shape and size during the extrusion process of the slurry due to excessive temperature avoided, but also the texture and taste of the biscuit finished products are ensured to reach a highly unified standard.

[0030] In an alternative embodiment: There are two sets of the feeding plate 3, the hollow tube 5 at its bottom, and the fixed rail 6, and the feeding plate 3, the hollow tube 5, and the fixed rail 6 are all distributed on the left and right sides in the middle inside the extruder body 1. The number of the discharge pipes 8 and the air pumps 7 is the same. The discharge pipes 8 are evenly distributed at the bottom of the hollow tube 5 from front to back, and the air pumps 7 are evenly distributed on the outer end faces of the fixed rails 6 from front to back.

[0031] In an alternative embodiment: The connecting plates 15 are distributed at the outer sides of the discharge pipes 8, and the number and distribution positions of the fixing rings 14 on the inner end faces of the connecting plates 15 match the number and distribution positions of the discharge pipes 8, and the front-to-back length of the connecting plates 15 matches the length between the front and back of the discharge pipes 8.

[0032] In this embodiment: It is used to uniformly connect the fixing rings 14, facilitating the subsequent disassembly and installation of the fixing rings 14.

[0033] In an alternative embodiment: The cross-sectional shapes of the fixing ring 14 and the movable ring 9 are both semi-circular, and the combined diameter of the fixing ring 14 and the movable ring 9 matches the cross-sectional diameter of the discharge pipe 8.

[0034] In this embodiment: The fixing ring 14 and the movable ring 9 can be combined outside the discharge pipe 8, allowing the heat on the surface of the discharge pipe 8 to be transferred to the connecting plates 15 and the heat dissipation fins 16.

[0035] In an alternative embodiment: The area of the graphene heat-conducting sheet 18 matches the area of the inner side faces of the fixing ring 14 and the movable ring 9, and the thickness of the graphene heat-conducting sheet 18 is uniformly 0.3 mm.

[0036] In this embodiment: The graphene heat-conducting sheet 18 has a heat-conducting effect, enhancing the efficiency of heat transfer.

[0037] In an alternative embodiment: The movable ring 9 is made of iron, and the fixing ring 14, the connecting plates 15, and the heat dissipation fins 16 are all made of copper. The top position at the rear of the movable ring 9 can be magnetically fixed by the magnetic strip 19.

[0038] In this embodiment: The movable ring 9 and the fixing ring 14 are magnetically fixed by the magnetic strip 19, facilitating subsequent disassembly and installation, making the daily cleaning and maintenance work simpler and faster.

[0039] In an alternative embodiment: The number of the blowers 10 is two sets, and the blowers 10 are distributed at the top positions on the front and rear sides of the air outlet plate 13. The air outlet ends of the blowers 10 correspond to the front and rear ends of the air outlet plate 13.

[0040] In this embodiment: It can enhance the air input by the blower 10 into the air outlet plate 13, avoiding setting a single blower 10, which may cause the air to be difficult to discharge from the air outlet 20 at the other end of the air outlet plate 13 due to the excessive length of the air outlet plate 13.

[0041] In an alternative embodiment: The air outlet plate 13 is located directly above the heat dissipation fins 16, and the front-to-back length of the air outlet plate 13 is the same as the distance between the top ends on both front and back sides of the heat dissipation fins 16. The number of air outlets 20 provided at the bottom of the air outlet plate 13 is the same as the number of heat dissipation fins 16, and a plurality of air outlets 20 provided at the bottom of the air outlet plate 13 are perpendicular to the heat dissipation fins 16.

[0042] In this embodiment: One air outlet 20 corresponds to one heat dissipation fin 16, which can effectively achieve the cooling effect of the heat dissipation fin 16.

[0043] Working principle: During use, the fixed ring 14 and the movable ring 9 are installed on the outer side of the discharge pipe 8. After the bottom of the fixed ring 14 contacts the top of the limit ring 21, the movable ring 9 rotates with the hinge 17 as the base point until the movable ring 9 merges with the fixed ring 14. At this time, the outer side of the discharge pipe 8 has been clamped and fixed by the movable ring 9 and the fixed ring 14. The graphene heat conduction sheet 18 contacts the surface of the discharge pipe 8, and the rear top end of the movable ring 9 is magnetically attracted and fixed to the magnetic strip 19 at the rear top end of the fixed ring 14. After the installation is completed, the extruder body 1 can be turned on. The slurry for making biscuits enters the distribution valve 4 through the feed pipe 2, and then enters the feed plate 3 through the distribution valve 4. The slurry is then driven downward by the negative pressure generated by the air pump 7 below the feed plate 3, enters the discharge pipe 8 through the hollow pipe 5, and is then discharged from the discharge pipe 8. Subsequently, the operator turns on the blower 10 located below the fixed rail 6. The blower 10 compresses the outside air and sends it into the air outlet plate 13 through the air duct 12, and the air blows downward from the air outlets 20 provided at the bottom of the air outlet plate 13. The heat dissipation fins 16 are located directly below the air outlets 20. The heat dissipation fins 16 are fixed by the connecting plate 15. The temperature generated on the surface of the discharge pipe 8 is guided to the connecting plate 15 on the outer end face of the fixed ring 14 through the graphene heat conduction sheet 18, and then guided to the heat dissipation fins 16 through the connecting plate 15 to achieve the operation of heat exchange. This not only avoids the instability in shape and size of the slurry during the extrusion process due to excessive temperature, ensures that the texture and taste of the biscuit finished products reach a high unified standard, but also prevents the discharge pipe 8 from being damaged due to local overheating, and to a certain extent improves the stability and durability of the entire production line.

[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary shaft type food slurry extruder, comprising an extruder body (1) and a fixing ring (14), characterized in that: A feed pipe (2) is fixedly connected to the upper inner side of the extruder body (1), a feed pipe (2) is fixedly connected to the bottom end of the feed pipe (2), a feed plate (3) is fixedly connected to the end of the feed valve (4) away from the feed pipe (2), a hollow tube (5) is fixedly connected to the bottom of the feed plate (3), a fixed rail (6) is fixedly connected to the bottom of the hollow tube (5), an air pump (7) is fixedly connected to the outer end face of the fixed rail (6), a discharge pipe (8) is fixedly connected to the bottom of the hollow tube (5), a limiting ring (21) is fixedly connected to the outer side of the discharge pipe (8), a hinge (17) is fixedly connected to the front end of the fixed ring (14), a movable ring (9) is fixedly connected to the end of the hinge (17) away from the fixed ring (14), and the The top rear end of the fixed ring (14) is fixedly connected to a magnetic strip (19); the inner sides of the fixed ring (14) and the movable ring (9) are both fixedly connected to a graphene heat conducting sheet (18); the outer end face of the fixed ring (14) is fixedly connected to a connecting plate (15); the end face of the connecting plate (15) away from the fixed ring (14) is fixedly connected to a heat dissipation fin (16); the outer bottom of the fixed rail (6) is fixedly connected to a mounting plate (11); the inner top of the mounting plate (11) is fixedly connected to a fan (10); the output end of the fan (10) is fixedly connected to an air supply pipe (12); the end of the air supply pipe (12) away from the fan (10) is fixedly connected to an air outlet plate (13); an air outlet (20) is provided in the middle of the bottom of the air outlet plate (13).

2. A rotary food slurry extruder according to claim 1, characterized in that: The interior of the fixed rail (6) is fixedly connected to the outer side of the upper part of the discharge pipe (8), the output end of the air pump (7) is connected to the upper part of the interior of the discharge pipe (8), the end face of the magnetic strip (19) away from the fixed ring (14) is magnetically fixed to the top rear end of the movable ring (9), the inner sides of the fixed ring (14) and the movable ring (9) are in contact with the lower surface of the discharge pipe (8), the bottoms of the fixed ring (14) and the movable ring (9) are in contact with the top of the limit ring (21), the top of the fan (10) is in contact with the bottom of the fixed rail (6), and the top of the air outlet plate (13) is in contact with the bottom of the fixed rail (6).

3. The rotary food slurry extruder according to claim 1, characterized in that: The number of the feed plate (3) and the hollow tube (5) and the fixed rail (6) at the bottom thereof is two groups, and the feed plate (3), the hollow tube (5) and the fixed rail (6) are all distributed on the left and right sides of the middle of the inner side of the extruder body (1), the number of the discharge pipes (8) and the air pump (7) are the same, the discharge pipes (8) are evenly distributed at the bottom of the hollow tube (5) from front to back, and the air pumps (7) are evenly distributed at the outer end surface of the fixed rail (6) from front to back.

4. The rotary food slurry extruder according to claim 1, characterized in that: The connecting plate (15) is distributed at the outer position of the discharge pipe (8), and the number and distribution position of the fixing rings (14) on the inner end surface of the connecting plate (15) match the number and distribution position of the discharge pipe (8), and the front-to-back length of the connecting plate (15) matches the length between the front and back of the discharge pipe (8).

5. The rotary food slurry extruder according to claim 1, characterized in that: The cross-sectional shapes of the fixed ring (14) and the movable ring (9) are both semicircular, and the combined diameter of the fixed ring (14) and the movable ring (9) matches the cross-sectional diameter of the discharge pipe (8).

6. The rotary food slurry extruder according to claim 1, characterized in that: The area of ​​the graphene heat conductive sheet (18) matches the area of ​​the inner side surfaces of the fixed ring (14) and the movable ring (9), and the thickness of the graphene heat conductive sheet (18) is uniformly 0.3 mm.

7. The rotary food slurry extruder according to claim 1, characterized in that: The movable ring (9) is made of iron, and the fixed ring (14), the connecting plate (15) and the heat dissipation fins (16) are all made of copper. The top rear position of the movable ring (9) can be fixed by magnetic attraction of a magnetic strip (19).

8. The rotary food slurry extruder according to claim 1, characterized in that: The number of the fans (10) is two groups, and the fans (10) are distributed at the top positions of the front and rear sides of the air outlet plate (13), and the air outlet ends of the fans (10) correspond to the front and rear ends of the air outlet plate (13).

9. The rotary food slurry extruder according to claim 1, characterized in that: The air outlet plate (13) is located directly above the heat dissipation fins (16), and the front-to-back length of the air outlet plate (13) is consistent with the distance between the top ends of the front and rear sides of the heat dissipation fins (16). The number of air outlets (20) opened at the bottom of the air outlet plate (13) is consistent with the number of heat dissipation fins (16), and the plurality of air outlets (20) opened at the bottom of the air outlet plate (13) are in a vertical state with the heat dissipation fins (16).

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