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CN-122009774-A - Anti-adhesion quick-frozen food conveying device

CN122009774ACN 122009774 ACN122009774 ACN 122009774ACN-122009774-A

Abstract

The invention belongs to the technical field of food processing, and particularly discloses an anti-adhesion quick-frozen food conveying device which comprises a conveying frame, a conveying net belt matched with the conveying frame, a bracket symmetrically arranged below a return path section of the conveying net belt, a heating cylinder cover fixedly arranged between the two brackets, a heat-insulating pushing deicing mechanism arranged in the heating cylinder cover, a driving mechanism arranged on the bracket, and a first absorber and a second absorber arranged on a return path of the conveying net belt. According to the invention, a thermal insulation pushing deicing mechanism is adopted, the mesh belt is periodically pushed when the semi-flexible arc cover which moves circularly contacts the mesh belt, flexible deformation of the semi-flexible arc cover is utilized to be embedded into the deep part of the mesh belt, hot fluid in the cover is used for conducting contact hot melting on the accumulated ice, the accumulated ice is forcedly peeled off by matching with mechanical pushing force, and then the accumulated ice is collected by negative pressure of a suction device.

Inventors

  • REN YANKAI
  • LIU SHAOKANG
  • ZHAO XIAODAN
  • Ru Zhengyin

Assignees

  • 河北顺阳食品有限公司

Dates

Publication Date
20260512
Application Date
20260413

Claims (9)

  1. 1. An anti-adhesion quick-frozen food conveying device comprises a conveying frame (1) and a conveying net belt (2) which is matched with the conveying frame (1), and is characterized by further comprising brackets (3) symmetrically arranged below a return stroke section of the conveying net belt (2), a heating cylinder cover (4) fixedly arranged between the two brackets (3), a heat-preserving pushing deicing mechanism (5) arranged in the heating cylinder cover (4), a driving mechanism (6) arranged on the brackets (3) and a first absorber (7) and a second absorber (8) arranged on a return stroke path of the conveying net belt (2); The heating cylinder cover (4) is horizontally arranged, and an arc opening (42) facing the conveying mesh belt (2) is formed in the top of the heating cylinder cover; The heat-insulating pushing deicing mechanism (5) comprises a positioning cylinder (51) fixedly arranged at the upper end of each bracket (3), a sleeve (52) clamped and rotationally sleeved on each positioning cylinder (51), a rotating ring (53) coaxially fixed at the front end of each sleeve (52), a plurality of arc plates (54) closely arranged between the two rotating rings (53) and a semi-flexible arc cover (56) arranged on the outer cambered surface of each arc plate (54); an annular groove (511) and a sudden change groove (512) communicated with the annular groove (511) are formed in one surface of the positioning cylinder (51) facing the arc plate (54), vertical grooves (531) distributed in a circumferential array are formed in one surface of the rotating ring (53) facing the arc plate (54), and the vertical grooves (531) point to the axial lead of the rotating ring (53); The two ends of the arc plate (54) are provided with guide rods (55) pointing to the circle center of the arc plate (54), the guide rods (55) are provided with sliding blocks (57) and rolling shafts (58), the sliding blocks (57) are in sliding fit in the vertical grooves (531), and the rolling shafts (58) are in sliding fit in the annular grooves (511) and the abrupt change grooves (512).
  2. 2. The anti-adhesion quick-frozen food conveying device according to claim 1, wherein the angle position of the abrupt change groove (512) corresponds to the angle position of the arc opening (42) on the heating cylinder cover (4), the annular groove (511) is coaxially arranged with the positioning cylinder (51), the length of the abrupt change groove (512) from the axial lead of the positioning cylinder (51) gradually increases to a middle maximum position along the rotation direction, then gradually decreases and is communicated with the annular groove (511), and when the roller (58) just starts to move outwards along the track of the abrupt change groove (512), the guide rod (55) drives the arc plate (54) to drive the semi-flexible arc cover (56) to just extend out of the arc opening (42) along the vertical groove (531) and to press the conveying net belt (2).
  3. 3. The anti-adhesion quick-frozen food conveying device according to claim 2, wherein the cross section of the semi-flexible arc cover (56) is fan-shaped, the outer cambered surfaces of all the non-ejected semi-flexible arc covers (56) can form a continuous cambered surface, the outer circumferential surface of the cambered surface is coaxially clung to the inner wall of the heating cylinder cover (4), and the circle where the cambered surface is located is tangent to the lower surface of the conveying net belt (2).
  4. 4. An anti-blocking quick-frozen food conveying appliance according to claim 3, characterized in that the semi-flexible arc cover (56) is made of a semi-flexible material resistant to high temperatures and having a preliminary shape-retaining capacity, and that the semi-flexible arc cover (56) is deformed flexibly to be embedded in the meshes of the conveyor belt (2) when it is extended and pressed against the conveyor belt (2).
  5. 5. An anti-adhesion quick-frozen food conveying device as recited in claim 4, wherein one surface of the positioning cylinder (51) facing the semi-flexible arc cover (56) and one surface of the swivel (53) facing the semi-flexible arc cover (56) are located in the same vertical plane, and the positioning cylinder (51) and the heating cylinder cover (4) are coaxially arranged.
  6. 6. An anti-blocking quick frozen food conveying appliance according to claim 5, wherein the driving mechanism (6) comprises a motor (61) symmetrically fixed on the outer side of the bracket (3), a gear (62) driven by the motor (61) to rotate, and an outer gear ring (63) fixedly sleeved on the outer side of the sleeve (52) and meshed with the gear (62).
  7. 7. An anti-blocking quick-frozen food conveying apparatus as recited in claim 6, wherein the outer arcuate line speed when the motor (61) drives the non-ejected semi-flexible arcuate cover (56) to rotate is the same as the running speed of the conveyor belt (2), and the length of the semi-flexible arcuate cover (56) covers the width of the conveyor belt (2).
  8. 8. The anti-adhesion quick-frozen food conveying device according to claim 7, wherein the first absorber (7) is arranged above a return section of the conveying mesh belt (2), an air suction port is downwards directed to the conveying mesh belt (2), the second absorber (8) is arranged below the return section of the conveying mesh belt (2), the air suction port is upwards directed to the conveying mesh belt (2), the first absorber (7) and the second absorber (8) are staggered along the conveying direction, and ice residues melted and separated by the heat-insulation pushing deicing mechanism (5) are sucked and discharged by the first absorber (7) and the second absorber (8) in sequence.
  9. 9. An anti-adhesion quick-frozen food conveying device according to claim 8, wherein the heating cylinder cover (4) is internally embedded with a heating wire (41), and the semi-flexible arc cover (56) is internally filled with fluid, so that the quick-frozen food conveying device can quickly absorb heat and raise temperature in the heating cylinder cover (4) and quickly release heat when contacting the conveying mesh belt (2).

Description

Anti-adhesion quick-frozen food conveying device Technical Field The invention belongs to the technical field of food processing, and particularly relates to an anti-adhesion quick-frozen food conveying device. Background In the industrial production process of quick-frozen foods, after the foods are subjected to deep freezing by a quick freezer, the foods are required to be transported to a packaging machine or a next process by a metal mesh belt conveyor. The just-finished quick-frozen food usually has extremely low center temperature, and tiny ice crystals and frost layers are often attached to the surface, and trace condensed water or cleaning residual water is generated due to temperature difference at the moment of being separated from the quick-frozen environment. When the quick-frozen foods are contacted with the metal mesh belt, instantaneous recrystallization occurs on the surface of the metal mesh belt under the action of a cold bridge effect. This sticking phenomenon can have serious consequences in that the ice dust and coagulated moisture can continuously fill the inside of the mesh of the metal mesh belt and freeze into hard ice cubes. The structural ice accumulation can be dead and blocked in the hinge points and gaps of the mesh belt, so that the running resistance of the mesh belt is increased, the running is blocked, the food is difficult to naturally fall off at the discharging end, and meanwhile, a long-term accumulated old ice layer can become a potential temperature bed for microorganism breeding. Aiming at the adhesion problem in the conveying process, the prior art mainly adopts the following two treatment means, but has obvious technical defects: In the prior art, a drying and blowing device is often adopted to dry or blow and deicing the back of the return stroke of the mesh belt. However, the scheme is not ideal in practical application, because accumulated ice is often deeply embedded in the complex woven structure of the metal mesh belt, simple back hot air is difficult to penetrate through the metal layer and effectively melt ice cubes clamped in the deep part of meshes, so that deicing is incomplete, a quick-freezing workshop belongs to a strictly controlled low-temperature environment, huge energy waste can be caused by introducing a hot air device, and high-temperature air flow inevitably escapes into surrounding air in the blowing process, so that the local environment temperature is increased, and the stability of the low-temperature freezing environment is damaged. Another common solution is to use physical scrapers or comb-like inserts for deicing. The conventional plane scraper can only treat the attached ice layer on the surface of the mesh belt, so that the intractable ice blocks embedded in the meshes of the mesh belt are not guaranteed, and the comb tooth type cutters can be inserted into the meshes to clean, but the rigid comb teeth are extremely easy to rigidly collide with the irregular metal mesh belt due to irregular mesh arrangement, so that the comb teeth are broken, the mesh belt is worn, and even serious production accidents are caused. Disclosure of Invention According to the anti-adhesion quick-frozen food conveying device, the heat-preservation pushing deicing mechanism is adopted, the mesh belt is pushed periodically when the semi-flexible arc cover which performs circular motion contacts the mesh belt, flexible deformation of the semi-flexible arc cover is utilized to be embedded into the deep part of the mesh belt, hot fluid in the cover is used for conducting contact type hot melting on the accumulated ice, mechanical pushing force is matched to forcedly strip the accumulated ice, then negative pressure is collected by the suction device, the device can adapt to meshes of the mesh belt, embedded accumulated ice is effectively removed, heat is accurately transferred through contact, and heat energy waste and interference are avoided. The invention adopts the following technical scheme that the anti-adhesion quick-frozen food conveying device comprises a conveying frame, a conveying net belt matched with the conveying frame, a bracket symmetrically arranged below a return path section of the conveying net belt, a heating cylinder cover fixedly arranged between the two brackets, a heat-insulating pushing deicing mechanism arranged in the heating cylinder cover, a driving mechanism arranged on the bracket, and a first absorber and a second absorber arranged on a return path of the conveying net belt. Further, the heating cylinder cover is horizontally arranged, and an arc opening facing the conveying mesh belt is formed in the top of the heating cylinder cover. Further, the heat-preservation pushing deicing mechanism comprises a positioning cylinder fixedly arranged at the upper end of each support, a sleeve sleeved on each positioning cylinder in a clamping and rotating mode, a swivel coaxially fixed at the front end of each sleeve, a plurality of arc