A roller-type multifunctional micro-freezing machine capable of continuous production

Abstract

The present invention discloses a roller-type multifunctional micro-freezing machine capable of continuous production, comprising a machine base, a roller mechanism, a liquid storage tank, an operating mechanism, a cover and a material basket; the roller mechanism comprises a wheel rim frame and a wheel axle, the wheel rim frame is wrapped with an inner wheel rim, an outer wheel rim is arranged concentrically with the inner wheel rim, the inner wheel rim and the outer wheel rim are connected by partitions evenly arranged along the circumference, the partitions are evenly provided with mesh holes, and a material basket placement station is formed between adjacent partitions; the operating mechanism comprises an electric control box, a reduction motor electrically connected to the electric control box, and a roller position sensor; the liquid storage tank is arranged in the machine base frame, the lower half of the roller mechanism is embedded in the liquid storage tank, the upper half is covered by the cover, material basket doors are respectively arranged on both sides of the cover, bearings are sleeved at both ends of the wheel axle, one end of the wheel axle is supported by a bearing seat support frame, and the other end is connected to the reduction motor and supported by the reduction motor support frame. The present invention can avoid direct contact of the transmission mechanism with the liquid medium and realize continuous production.

Description

Technical Field

[0001] The invention relates to the technical field of freezing and fresh-keeping, in particular to a roller-type multifunctional micro-freezer capable of continuous production. Background Art

[0002] Low-temperature rapid micro-freezing technology uses a low-temperature liquid medium (micro-freezing fluid) to exchange heat and cold with the micro-frozen material. It has the characteristics of fast freezing speed and good preservation effect, and has a very broad prospect in the field of food preservation. The micro-freezing machine is the key equipment for the industrialization of low-temperature rapid micro-freezing technology, and it is of great significance to the promotion and popularization of the application of this technology. There are roughly two structures of existing micro-freezing machines, one is a vertical lifting mechanism, and the other is a grid conveyor belt mechanism. The vertical lifting mechanism lifts and lowers the action for one freezing cycle, which is inconvenient to achieve continuous production, so the production efficiency is low. The grid conveyor belt mechanism immerses the grid conveyor belt in the liquid medium, and the transmission mechanism of the conveyor belt interacts with the low-temperature liquid medium, which is not conducive to the quality control of frozen products. The consumption of micro-freezing fluid is large, and the structure is relatively complicated, which reduces the reliability of the equipment. Summary of the invention

[0003] The object of the present invention is to provide a roller-type multifunctional micro-freezer capable of continuous production, which can avoid direct contact of a transmission mechanism with a liquid medium and realize continuous production.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a roller-type multifunctional micro-freezer capable of continuous production, comprising a machine base, a roller mechanism, a liquid storage tank, a running mechanism, a cover and a material basket; the liquid storage tank comprises a liquid tank, a water inlet pipe and a water outlet pipe connected to the liquid tank, the liquid tank is in a semicircular arc shape, and the outer periphery of the notch of the liquid tank is connected to a liquid tank table panel; the roller mechanism comprises a wheel rim frame, a wheel axle arranged at the center of the wheel rim frame, the wheel rim frame is wrapped with an inner wheel rim, an outer wheel rim is arranged concentrically with the inner wheel rim, the inner wheel rim and the outer wheel rim are connected by a partition evenly arranged along the circumference, the partition is evenly distributed with mesh holes, and a placement station for the material basket is formed between adjacent partitions; The operating mechanism includes an electric control box, a reduction motor electrically connected to the electric control box, and a roller position sensor, wherein the roller position sensor is arranged above the reduction motor; the machine base includes a machine base frame, a bearing seat support frame is provided at one end of the machine base frame, a reduction motor support frame is provided at the other end, and a liquid tank support frame is provided at the bottom of the machine base frame; the liquid tank is arranged in the machine base frame, the lower half of the roller mechanism is embedded in the liquid storage tank, and the upper half is covered by the cover, and material basket doors are respectively provided on both sides of the cover, and bearings are provided at both ends of the wheel axle, one end of the wheel axle is supported by the bearing seat support frame, and the other end is connected to the reduction motor and supported by the reduction motor support frame.

[0005] Furthermore, the cover includes an inner liner, an outer liner, an insulation layer filled between the inner liner and the outer liner, and a sealing strip for sealing the edges of the inner liner and the outer liner; the inner liner and the outer liner are both semi-circular arc-shaped, with door panels on the front and back sides, and door rails on both sides of the door panels, and the material basket door can slide along the door rails.

[0006] Furthermore, the cover is fixedly connected to the liquid storage tank and the machine base through a locking buckle, and a handle is provided on the outer side of the curved surface of the cover.

[0007] Furthermore, the material basket includes a frame and a spring latch, and the frame is connected to the partition through the spring latch.

[0008] Furthermore, a cold insulation plate is provided at the bottom end of the liquid tank table panel.

[0009] Furthermore, the outer layers of the liquid tank, the water inlet pipe and the water outlet pipe are all provided with a heat-insulating layer.

[0010] Furthermore, the wheel axle is provided with a wheel axle cold insulation pipe, which is fixed by cold conduction insulation sleeves at both ends. By providing a cold insulation plate, a heat preservation layer and a cold insulation pipe, the cold loss can be reduced and the freezing effect of the micro-refrigerating liquid can be improved.

[0011] Furthermore, universal casters are provided at four corners of the bottom of the machine base frame.

[0012] Furthermore, the liquid tank support frame is arranged corresponding to the arc quadrant points on both sides of the bottom end of the liquid tank, and the bottom of the liquid tank support frame is connected to the machine base frame through a screw rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the micro-freezing machine provided by the present invention realizes the circular motion of the material through the roller mechanism, which not only avoids the transmission mechanism from directly contacting the liquid medium, but also realizes continuous production, and provides a feasible interface for realizing automated production (installing a robot for automatically entering and exiting materials). The micro-freezing machine is equipped with a dedicated refrigeration unit to provide a low-temperature micro-freezing liquid of not less than -38°C to the micro-freezing machine storage tank as needed, and the temperature can be adjusted in real time to meet the micro-freezing process of different materials. The present invention can ensure the quality control of frozen products, reduce the consumption of micro-freezing liquid, and improve the reliability of equipment operation through ingenious structural design. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the present invention without the cover;

[0016] Figure 3 It is a front view of the present invention;

[0017] Figure 4 for Figure 3Schematic diagram of the structure in the middle AA direction;

[0018] Figure 5 It is a left side view of the present invention;

[0019] Figure 6 for Figure 5 Schematic diagram of the structure in the middle BB direction;

[0020] Figure 7 It is a right side view of the present invention;

[0021] Figure 8 It is a rear view of the present invention;

[0022] Fig. 9 A top view of the present invention;

[0023] Fig.10 It is a schematic diagram of the structure of the material basket in the present invention.

[0024] In the figure: 1-roller mechanism 2-liquid storage tank 3-machine base 4-operating mechanism 5-cover 6-axle 7-cooling partition sleeve 8-axle cooling pipe 9-wheel rim frame 10-inner rim 11-outer rim 12-partition 13-liquid tank table panel 14-cold insulation board 15-liquid tank 16-liquid tank insulation layer 17-water pipe 18-machine base frame 19-bearing seat support frame 20-reduction motor support frame 21-liquid tank support frame 22-universal caster 23-sealing plate 24-bearing seat 25-reduction motor 26-roller position sensor 27-electric control box 28-electric PLC control system 29-inner liner 30-outer liner 31-cover insulation layer 32-sealing strip 33-quick locking buckle 34-cover handle 35-material basket door 36-door track 37-door handle 38-spring door pin 39-material basket. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figures 1 to 10 The roller-type multifunctional micro-freezer capable of continuous production provided by the present invention comprises a machine base 3, a liquid storage tank 2, a roller mechanism 1, a cover 5, a material basket 39, and an operating mechanism 4.

[0027] The machine base 3 includes a machine base frame 18, which is a square frame. The four sides and the bottom of the square frame are closed by a sealing plate 23, and universal casters 22 are provided at the four corners of the bottom sealing plate 23. A bearing seat support frame 19 is provided at one end of the machine base frame 18, and a reduction motor support frame 20 is provided at the other end. A liquid tank support frame 21 is provided at the bottom of the machine base frame 18.

[0028] The liquid storage tank 2 includes a liquid tank 15, a water inlet pipe 17 and a water outlet pipe 17 connected to the liquid tank 15. The liquid tank 15 is semicircular, and the outer periphery of the notch of the liquid tank 15 is connected to a liquid tank table panel 13. A cold insulation plate 14 is provided at the bottom of the liquid tank table panel 13. A liquid tank insulation layer 16 is provided on the outer side of the liquid tank 15, and each water pipe 17 is also wrapped with an insulation layer, which has good thermal insulation performance. The water inlet pipe 17 and the water outlet pipe 17 are connected to the refrigeration unit, and the location of related facilities can be arranged according to the layout of the production workshop.

[0029] A wheel rim frame 9 is provided in the middle of the roller mechanism 1, and a wheel axle 6 is provided in the center of the wheel rim frame 9, and a wheel axle 6 cold insulation pipe is sleeved on the wheel axle 6. The wheel rim frame 9 is wrapped with an inner wheel rim 10, and an outer wheel rim 11 is provided concentrically with the inner wheel rim 10. A partition 12 is provided between the inner wheel rim 10 and the outer wheel rim 11, and a material basket placement station is formed between adjacent partitions 12. Because the wheel axle 6 is in a low temperature environment, an axle cold insulation pipe 8 is sleeved on the wheel axle 6, and the axle cold insulation pipe 8 is fixed by the cold conduction isolation sleeves 7 at both ends to reduce the loss of cold.

[0030] The cover 5 includes an inner liner 29, an outer liner 30, a cover insulation layer 31 filled between the inner liner 29 and the outer liner 30, and a sealing strip 32 for sealing the edges of the inner liner 29 and the outer liner 30; the inner liner 29 and the outer liner 30 are both semicircular arc-shaped, with door panels on the front and rear sides, and door rails 36 on both sides of the door panels. The material basket door 35 can slide along the door rails 36 for material in and out operations, and the material frame door 35 is locked by a spring door pin 388. The cover 5 is placed on the liquid tank table panel 13 of the liquid storage tank 2 to cover the roller mechanism 1, and is connected to the liquid storage tank 2 and the machine base 3 as a whole by a quick locking buckle 33. A cover handle 34 is provided on the outside of the cover 5. The cover 5 has good thermal insulation performance. During normal operation, the temperature of the space above the roller in the cover 5 can be maintained below -15°C.

[0031] The material basket 39 is composed of a frame body and a spring latch, which facilitates the operation of entering and exiting the materials and limits the materials within the roller barriers to avoid interference with the motion mechanism.

[0032] The operating mechanism 4 is composed of a reduction motor 25, a roller position sensor 26, an electric control box 27, an electric PLC control system 28, etc. The reduction motor 25 is a DC brushless motor + planetary + worm gear two-stage reduction gear, which has low speed, low power consumption and large transmission torque.

[0033] The liquid tank 15 stores low-temperature micro-freezing liquid, and the cold insulation plate 14 of the liquid storage tank 2 is placed on the machine base frame 18 to achieve cold isolation. The liquid tank support frame 21, whose height is adjusted by a screw, supports the arc quadrant points on both sides of the bottom of the liquid tank 15. The lower half of the roller mechanism 1 is embedded in the liquid tank 15, and the upper half is covered by a semicircular cover 5 covering the square machine base 3. The roller mechanism 1 is driven by the outer running mechanism 4 of the square machine base 3.

[0034] The roller mechanism 1 of the micro-freezing machine forms several partitions (stations) through the partition 12, and under the drive of the reduction motor 25, it moves in a circular motion around the wheel shaft 6 at a low speed. The partitions of the lower half of the roller mechanism 1 will be immersed in the micro-freezing liquid in the liquid tank 15, and the material basket doors 35 are opened on both sides of the micro-freezing machine cover 5. When the micro-freezing machine is started, the roller partition will stay at the corresponding position of the material inlet and outlet under the induction of the roller position sensor 26, and there will be a buzzer sound prompt. At this time, the material basket door 35 is opened, and the material basket 39 corresponding to the shape of the roller partition containing the material to be micro-frozen is inserted into the roller partition, and the spring latch is limited in the partition, and the material basket door is closed. The PLC control system 28 will set the required residence time for each roller to rotate a partition according to the micro-freezing cycle of different materials, and then start automatically, push the material into the micro-freezing liquid, and the micro-freezing liquid and the micro-frozen material will exchange heat and cold, and the micro-freezing process begins. Then enter the next partition feeding action. When the first feeding partition rotates one circle according to the micro-freezing cycle set by the micro-freezing process, the partition material returns to the inlet and outlet position, the micro-freezing process ends, the micro-frozen material is taken out and transferred to the cold storage for storage, and then new material is added for micro-freezing. This cycle is repeated to achieve continuous production.

[0035] The micro-freezing machine's micro-freezing liquid temperature, roller speed, and micro-freezing cycle can be adjusted according to the material type, which can meet the micro-freezing process requirements of meat, aquatic products, fruits and vegetables, etc. It can also be used in scientific and technological fields such as life sciences, criminal investigation, organ transplantation, blood preservation, and cold-induced treatment of various plant seeds. The micro-freezing machine also has the functions of pre-cooling, cleaning, and sterilization. If the refrigeration unit is replaced with a high-temperature unit (water source heat pump), the material can be treated at high temperature. The micro-freezing machine has a simple and reliable structure, is easy to operate, can be produced continuously, has high production efficiency, can maintain the cleanliness of the micro-freezing liquid for a long time, reduces the cost of micro-freezing, and provides a feasible interface for realizing automated production (installing robots that automatically enter and exit materials).

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roller-type multifunctional micro-freezer capable of continuous production, characterized in that: It includes a machine base, a roller mechanism, a liquid storage tank, an operating mechanism, a cover and a material basket; the liquid storage tank includes a liquid tank, an inlet pipe and an outlet pipe connected to the liquid tank, the liquid tank is semicircular, and the outer periphery of the notch of the liquid tank is connected to a liquid tank table panel; the roller mechanism includes a wheel rim frame, an axle arranged at the center of the wheel rim frame, the wheel rim frame is wrapped with an inner wheel rim, an outer wheel rim is arranged concentrically with the inner wheel rim, the inner wheel rim and the outer wheel rim are connected by partitions evenly arranged along the circumference, the partitions are evenly distributed with mesh holes, and the placement station of the material basket is formed between adjacent partitions; the operating mechanism includes an electric control box, an axle electrically connected to the electric control box a reduction motor and a roller position sensor, wherein the roller position sensor is arranged above the reduction motor; the machine base comprises a machine base frame, a bearing seat support frame is arranged at one end of the machine base frame, a reduction motor support frame is arranged at the other end, and a liquid tank support frame is arranged at the bottom of the machine base frame; the liquid tank is arranged in the machine base frame, the lower half of the roller mechanism is embedded in the liquid storage tank, and the upper half is covered by the cover, and material basket doors are respectively arranged on both sides of the cover, bearings are arranged at both ends of the wheel axle, one end of the wheel axle is supported by the bearing seat support frame, and the other end is connected to the reduction motor and supported by the reduction motor support frame.

2. The roller-type multifunctional micro-freezer capable of continuous production according to claim 1, characterized in that: The cover comprises an inner liner, an outer liner, an insulation layer filled between the inner liner and the outer liner, and a sealing strip for sealing the edges of the inner liner and the outer liner; the inner liner and the outer liner are both semicircular, with door panels on the front and back sides, and door rails on both sides of the door panels, and the material basket door can slide along the door rails.

3. The roller-type multifunctional micro-freezer capable of continuous production according to claim 1, characterized in that: The cover is fixedly connected to the liquid storage tank and the machine base through a locking buckle, and a handle is provided on the outer side of the arc surface of the cover.

4. The roller-type multifunctional micro-freezer capable of continuous production according to claim 1, characterized in that: The material basket comprises a frame body and a spring latch, and the frame body is connected to the partition plate through the spring latch.

5. The roller-type multifunctional micro-freezer capable of continuous production according to claim 1, characterized in that: A cold insulation plate is arranged at the bottom end of the liquid tank table panel.

6. The roller-type multifunctional micro-freezer capable of continuous production according to claim 1, characterized in that: The outer layers of the liquid tank, the water inlet pipe and the water outlet pipe are all provided with a heat-insulating layer.

7. The roller-type multifunctional micro-freezer capable of continuous production according to claim 1, characterized in that: The wheel axle is sleeved with a wheel axle cooling insulation pipe, which is fixed by cooling insulation sleeves at both ends.

8. The roller-type multifunctional micro-freezer capable of continuous production according to claim 1, characterized in that: Universal casters are arranged at four corners of the bottom of the machine base frame.

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