CN116331727A

CN116331727A - Turnover mechanism and corresponding instant freezer

Info

Publication number: CN116331727A
Application number: CN202310323369.5A
Authority: CN
Inventors: 陈海洋
Original assignee: Shenzhen Dejieli Cryogenic Technology Co ltd
Current assignee: Shenzhen Dejieli Cryogenic Technology Co ltd
Priority date: 2017-09-07
Filing date: 2017-09-07
Publication date: 2023-06-27
Also published as: CN107560281A; CN107560281B; CN116374485A

Abstract

The application of the division provides a turnover mechanism and a corresponding instant freezer, the instant freezer comprises a transmission conveying device, the transmission conveying device comprises a plurality of conveying mechanisms, a driving mechanism, a baffle and the turnover mechanism, and the conveying mechanisms are used for conveying food into a machine body and carrying the food in a reciprocating manner in the machine body; the driving mechanism is used for driving the conveying mechanism to rotate and convey; the baffle plate is arranged between the conveying mechanisms and positioned at one side of the conveying end of the conveying mechanism so as to enable food to enter the next conveying mechanism; the turnover mechanism is arranged between the conveying mechanism and the baffle plate and is used for turning over the food conveyed by the conveying mechanism and transmitting the food to the baffle plate; the conveying mechanisms are arranged at intervals in a laminated mode, and the conveying directions of the adjacent conveying mechanisms are opposite. According to the invention, through the stacked reciprocating arrangement of the conveying mechanisms, the occupied space is reduced, meanwhile, food is transferred and conveyed between the conveying mechanisms, and the problem that the food is adhered and easily damaged is avoided.

Description

Turnover mechanism and corresponding instant freezer

The application is a divisional application, and the application number of the original application is: 201710801327.2", application date is: the invention name of "2017, 09, 07" is: "turnover quick freezer".

Technical Field

The invention relates to the field of instant freezers, in particular to a turnover mechanism and a corresponding instant freezer.

Background

With the increasing demand for quick-frozen foods in the market, quick-frozen machines for freezing quick-frozen foods are rapidly developing.

The existing quick-freezing machines are of various types, and the refrigeration mode mainly comprises a mechanical compressor refrigeration device (tunnel type quick-freezing machine, flat plate quick-freezing machine, single/double spiral type quick-freezing machine and immersion type quick-freezing machine) and a liquid nitrogen quick-freezing device (tunnel type liquid nitrogen quick-freezing machine, spiral type liquid nitrogen quick-freezing machine and liquid nitrogen immersion type quick-freezing machine).

Some instant freezers adopt a plurality of conveying mechanisms to be range upon range of interval setting, and tortuous connection carries the food to reduce occupation of land space, but lack the mechanism of transfer upset between a plurality of conveying mechanisms, the food is frozen unevenly in carrying, and easy adhesion is dropped because of the transfer and is led to shape structure to damage easily, makes the transportation of food can not intact.

Therefore, it is necessary to provide a turnover mechanism and a corresponding instant freezer to solve the problems in the prior art.

Disclosure of Invention

The invention provides a turnover mechanism and a corresponding instant freezer, which are used for solving the technical problem that the existing instant freezer lacks a turnover mechanism, so that food cannot be conveyed intact.

The invention provides a turnover mechanism which is arranged between a conveying mechanism and a baffle plate and is used for turning over food conveyed by the conveying mechanism and transmitting the food to the baffle plate or the conveying head end of the next conveying mechanism;

the turnover mechanism comprises a turnover device for receiving and turnover food and unloading the food to the next conveying mechanism and a motor for driving the turnover device to rotate, and the rotation direction of the turnover device is consistent with the rotation direction of a driving shaft of the conveying mechanism;

the inverter includes:

the cylindrical turner body is rotationally connected with the motor through a rotating shaft;

the side plates are arranged at two ends of the turner body;

the bearing plates are uniformly arranged on the circumferential surface of the turner body around the axis of the turner body;

a loading and unloading groove is defined among the side plate, the turner body and the adjacent bearing plate.

In the invention, the loading and unloading groove has a bearing state for bearing food, a turnover state for turnover of the bearing food and an unloading state for unloading of the turnover food in rotation;

when the loading and unloading groove is in a bearing state, the notch of the loading and unloading groove faces the conveying mechanism, when the loading and unloading groove is in a turnover state, the notch of the loading and unloading groove faces upwards, the bottom surface of the loading and unloading groove is lower than the conveying plane of the conveying mechanism, and when the loading and unloading groove is in an unloading state, the notch of the loading and unloading groove faces the baffle.

The bearing plate comprises a fixing part fixedly connected to the turner body, a bearing part extending from the fixing part to the outer side direction of the turner body and a guide hook part arranged at the free end of the bearing part, wherein the guide hook part is formed by warping from the free end of the bearing part;

the fixing parts are connected with each other and cover the circumferential surface of the turner body, and the fixing parts comprise a first connecting surface and a second connecting surface; the bearing part comprises a receiving surface connected with the first connecting surface and an unloading surface connected with the second connecting surface and positioned at the back of the receiving surface, the guide hook part comprises a leading-in surface connected with the receiving surface and a leading-out surface connected with the unloading surface, and the leading-in surface is a cambered surface and warps towards the outer side direction of a notch of the loading and unloading groove;

the guide-in surface and the receiving surface form a bearing surface, the second connecting surface, the unloading surface and the guide-out surface form a sliding surface, and the bearing surface, the first connecting surface and the sliding surface of the previous bearing plate form the loading and unloading groove.

Further, the bearing plate has five, the contained angle of first connecting face with the bearing surface is more than or equal to 90, the second connecting face with unload the coplanar, just the contained angle of first connecting face with the gliding surface is the obtuse angle.

Further, the bearing surface is a flexible surface, and the sliding surface is a smooth surface.

The invention also comprises a quick freezer, which comprises the turnover mechanism, wherein the conveying mechanism is driven by the driving mechanism to rotate and convey, a plurality of conveying mechanisms are arranged at intervals in a lamination mode, the conveying directions of the adjacent conveying mechanisms are opposite, and the baffle plate is arranged between the conveying mechanisms and positioned at one side of the conveying end of the conveying mechanism;

the quick freezer also comprises a machine body and a refrigerating device, wherein the machine body comprises a freezing chamber for quick freezing foods, a driving installation chamber independently arranged on one side of the freezing chamber and an electric control chamber independently arranged on the other side of the freezing chamber;

the conveying mechanism is arranged in the freezing chamber, a speed reducing motor of the driving mechanism is arranged in the driving installation chamber, and a rotating shaft of the speed reducing motor penetrates through the freezing chamber and is connected with the driving shaft through a coupler;

the refrigerating device comprises a cold air conveying main pipe arranged in the electric control chamber, a control valve arranged on the cold air conveying main pipe, cold air conveying branch pipes arranged on two sides of the inner wall of the freezing chamber and communicated with the cold air conveying main pipe, and nozzles arranged on the cold air conveying branch pipes.

The quick freezer also comprises a cold air circulation device for forcibly circulating cold air in the freezer, wherein the cold air circulation device comprises a fan fixedly arranged between the cold air conveying branch pipes, a motor which drives the fan to rotate and is arranged in the electric control chamber, and a guide plate sleeved on the fan;

the air guide plate is provided with an opening, the fan is arranged in the opening, and a space for ventilation is arranged between the air guide plate and the inner wall of the machine body;

the air outlet direction of the fan faces the inner wall of the machine body, and air outlets are formed in the periphery of the guide plate.

In the invention, the conveying mechanism is arranged on a conveying rack, and idler wheels are arranged in four corner areas at the bottom of the conveying rack;

one side of the machine body is provided with a sealing door which is convenient for the conveying rack to enter the machine body or to go out of the machine body, and a guide rail which is arranged on the bottom surface of the machine body and is used for being in rolling connection with the roller; the quick freezer further comprises a limiting component for limiting the rolling of the roller;

the roller comprises a roller body and a groove ring concavely arranged on the circumferential surface of the roller body and used for being in rolling fit with the guide rail;

The rollers comprise a front roller far away from the sealing door and a rear roller close to the sealing door; the limiting assembly comprises a first limiting assembly arranged at the tail end of the guide rail and used for limiting the front roller;

the first limiting component comprises a supporting part fixedly connected to the machine body, an abutting part extending from the free end of the supporting part and forming a matched groove ring, a clamping part matched with the abutting part and used for clamping the front roller, a roundabout part connected between the abutting part and the clamping part, and a guide part formed at the free end of the clamping part;

the roundabout part is in an inverted U shape and has elastic deformation restoring force, the abutting part, the roundabout part and the clamping part form an elastic clamping structure, and the guiding part is in a V shape so as to guide the front roller to enter or exit the range of the elastic clamping structure;

when the first limiting component limits the front roller, the roundabout part is in an elastic stretching state, and the abutting part and the clamping part are tightly buckled on the groove ring so as to limit the front roller;

one end of the guide rail, which is close to the first limiting component, is in a sliding shape; when the first limiting component limits the front roller, the front roller is in a sliding trend, and the front roller abuts against the supporting part.

Further, the limiting assembly further comprises a second limiting assembly arranged at the initial end of the guide rail and used for limiting the rear roller, and the second limiting assembly comprises a matching piece fixedly arranged at one side of the guide rail and a fastening piece arranged at the other side of the guide rail and opposite to the matching piece;

the convex end surface of the fastening piece facing one end of the matching piece is composed of an introduction inclined surface used for introducing the rear roller into the machine body, a discharge inclined surface used for discharging the rear roller out of the machine body and a fastening plane connected with the introduction inclined surface and the discharge inclined surface;

the distance from the fastening plane to the matching piece is smaller than the width of the rear roller so as to limit the rear roller passing through the fastening plane to retreat, and the distance from the leading-in inclined plane and the leading-out inclined plane to the matching piece is gradually increased from inside to outside;

the included angle between the leading-out inclined plane and the fastening plane is smaller than the included angle between the leading-in inclined plane and the fastening plane, and the vertical distance between the two ends of the leading-out inclined plane is larger than the vertical distance between the two ends of the leading-in inclined plane.

Further, the fastening piece is provided with a plurality of through holes in a hollow mode at one end of the convex end face, and the density of the through holes on one side close to the leading-in inclined plane is greater than that on one side close to the leading-out inclined plane.

Compared with the instant freezer in the prior art, the instant freezer has the beneficial effects that:

according to the instant freezer, the stacked reciprocating arrangement of the conveying mechanisms reduces the occupied space, and meanwhile, food is transferred and conveyed among the conveying mechanisms, so that the food is prevented from being adhered; meanwhile, when granular food is transferred from the conveying mechanism to the next conveying mechanism, rolling and overturning can occur, so that the food is further prevented from being adhered;

by arranging a plurality of conveying grooves, different kinds of foods can be frozen, so that the foods of different kinds can be frozen simultaneously, and the freezing efficiency is improved;

through tilting mechanism's setting for food overturns and transmits to next conveying mechanism between two conveying mechanism, through multiple upset, makes the food by even freezing in carrying, improves freezing efficiency and avoids the food to take place the adhesion, in addition, tilting mechanism's setting has carried out the effect of secondary conduction with the food in the height, has avoided the food directly to drop to next conveying mechanism from last conveying mechanism, and damage food.

The conveying frame is limited by the limiting assembly, so that the stability of conveying work of the conveying mechanism is improved; the stability of the conveying mechanism is further improved through the arrangement of the front limiting roller of the first limiting assembly and the rear limiting roller of the second limiting assembly; in the running process of the transmission conveying device, vibration is continuously generated to enable the roller to roll, and the arrangement of the first limiting component and the lower sliding section of the guide rail increases the difficulty of the roller backing, improves the stability of the roller and avoids the roller backing; the setting of the second limiting component further increases the difficulty of the roller in backing, and improves the stability of the roller;

Through the arrangement of the cold air circulation device, the cold air circulation in the freezing is enhanced, and the freezing efficiency of the cold air on food is improved.

Solves the technical problems of large occupied space, easy food adhesion and slow freezing efficiency of the instant freezer in the prior art.

Drawings

FIG. 1 is a schematic side sectional view of a preferred embodiment of the instant freezer of the present invention;

fig. 2 is a schematic front cross-sectional structure of a preferred embodiment of the instant freezer of the present invention;

fig. 3 is a schematic structural view of a conveying mechanism of a preferred embodiment of the instant freezer of the present invention;

FIG. 4 is an enlarged view of A in FIG. 1;

FIG. 5 is a schematic view of the inverter shown in FIG. 4;

fig. 6 is a schematic diagram of a cooperation structure of a first limiting component and a front roller of a preferred embodiment of the instant freezer according to the present invention;

FIG. 7 is an enlarged view of B in FIG. 2;

fig. 8 is a schematic top view of a cooperation structure of a second limiting assembly and a rear roller of the instant freezer according to the preferred embodiment of the invention;

fig. 9 is a schematic diagram of a machine body of a preferred embodiment of the instant freezer of the present invention.

Detailed Description

Referring to the drawings, wherein like reference numbers refer to like elements throughout, the principles of the present invention are illustrated in an appropriate computing environment. The following description is based on illustrative embodiments of the invention and should not be taken as limiting other embodiments of the invention not described in detail herein.

The mechanical compressor quick-freezing device has the defects of low quick-freezing efficiency, large occupied space of equipment, small productivity, large food dry consumption and the like; the liquid nitrogen instant freezer has the advantages of quick freezing efficiency, small food dry consumption, small occupied space and the like, but quick frozen foods are easy to adhere, and the bottom of the product is cooled and quick frozen slowly.

Meanwhile, a plurality of conveying mechanisms are arranged at intervals in a laminated mode, and are connected in a zigzag mode to convey food, so that occupied space is reduced, a transfer turnover mechanism is absent among the conveying mechanisms, the food is unevenly frozen in conveying and is easy to adhere, the shape and structure of the food are damaged due to the fact that the food falls off in transfer, and the food cannot be conveyed in a perfect mode.

Referring to fig. 1 and 2, fig. 1 is a schematic side sectional structure of a preferred embodiment of an instant freezer according to the present invention; fig. 2 is a schematic front cross-sectional structure of a preferred embodiment of the instant freezer of the present invention. The instant freezer comprises a freezer body, a transmission conveying device, a refrigerating device, a cold air circulating device and an electric control system, wherein the transmission conveying device, the refrigerating device, the cold air circulating device and the electric control system are arranged in the freezer body. Wherein, the electric control system is used for controlling the operation of the transmission quick-freezing device, the refrigerating device and the cold air circulation device.

In this embodiment, referring to fig. 9, the machine body includes three independent chambers, namely a freezing chamber 11 for freezing food, a driving installation chamber 12 disposed at one side of the freezing chamber 11, and an electric control chamber 13 disposed at the other side of the freezing chamber 11. Wherein the machine body 10 can be made of 304 stainless steel, and the machine body 10 adopts a polyurethane integral foaming process, so that the machine has good heat insulation effect.

The transmission conveying device comprises a conveying mechanism 21, a driving mechanism 22 for driving the conveying mechanism 21 to rotate and convey, a baffle plate 23, a turnover mechanism and a conveying rack 25 for fixedly placing the conveying mechanism 21, the baffle plate 23 and the turnover mechanism. The conveying mechanism 21, the baffle plate 23, the turnover mechanism and the conveying mechanism 25 are arranged in the freezing chamber 11, the driving mechanism 22 is arranged in the driving installation chamber 12, and a rotating shaft of a gear motor in the driving mechanism 22 penetrates into the freezing chamber 11 and is connected with a driving shaft 212 of the conveying mechanism 21 through a coupling 221.

The refrigerating apparatus includes a cold air delivery main pipe 31, a control valve 32, a cold air delivery branch pipe 33 communicating with the cold air delivery main pipe 31, and a nozzle provided on the cold air delivery branch pipe 33. The cold air delivery main pipe 31 and the control valve 32 are provided in the electric control chamber 13, the cold air delivery branch pipe 33 and the nozzle are provided in the freezing chamber 11, and the cold air delivery main pipe 31 penetrates the freezing chamber 11 to be connected to the cold air delivery branch pipe 33. Wherein the refrigerating gas conveyed by the refrigerating device can be liquid nitrogen or carbon dioxide.

The cool air circulation apparatus includes a fan 41, a motor 42 driving the fan 41 to rotate, and a deflector 43 guiding the air discharged from the fan 41. The fan 41 and the deflector 43 are disposed in the freezing chamber 11, the motor 42 is disposed in the electric control chamber 13, and a rotation shaft of the motor 42 penetrates into the freezing chamber 11 to be rotatably connected to the fan 41.

The electric control system comprises an electric cabinet, a temperature sensor for sensing the temperature in the freezing chamber 11, a touch screen, a PLC (programmable logic controller), a frequency converter and a scram switch. The temperature sensor is arranged in the freezing chamber 11, and the electric cabinet, the touch screen, the PLC, the frequency converter and the emergency stop switch are arranged in the electric control chamber 13.

A plurality of conveying mechanisms 21 for conveying the food into the machine body 10 and reciprocating the food in the machine body 10 while freezing; the driving mechanism 22 is used for driving the conveying mechanism 21 to rotate and convey; a baffle plate 23 is provided between the conveying mechanisms 21 and on one side of the conveying end of the conveying mechanism 21 to allow the food to enter the next conveying mechanism 21; the turnover mechanism is arranged between the conveying mechanism 21 and the baffle plate 23 and is used for turning over the food conveyed by the conveying mechanism 21 and transmitting the food to the baffle plate 23 or the conveying head end of the next conveying mechanism 21;

the plurality of conveying mechanisms 21 are arranged at intervals in a stacked manner, and the conveying directions of the adjacent conveying mechanisms 21 are opposite.

In the present embodiment, the plurality of conveying mechanisms 21 are arranged in a stacked and spaced manner, so that the occupied space of the present embodiment is reduced, and the food is transferred from one conveying mechanism 21 to the next conveying mechanism 21 during conveying, and the food is separated from the conveying mechanism 21 during transferring, so that the food is prevented from being always on the conveying mechanism 21, and adhesion between the food and the conveying mechanism 21 and between the food and the food is prevented;

in addition, the turnover mechanism not only plays a role in turnover of food, but also plays a role in secondary conduction; the food is turned over, so that the adhesion of the food can be avoided, the food is uniformly frozen, and the freezing efficiency of the food is improved; for the secondary conduction, the food is hard in the freezing process, so that the food is prevented from falling from the last conveying mechanism 21 to the next conveying mechanism 21 directly, the food is damaged, the quality of the food is damaged, and the overturning mechanism plays a role in buffering.

Referring to fig. 2 and 3, in the present embodiment, the conveying mechanism 21 includes a mesh belt 211, a driving shaft 212, a driven shaft 213, and a transmission gear 214.

Wherein the mesh belt 211 is used for conveying food; the driving shaft 212 is arranged at one end of the mesh belt 211; the driven shaft 213 is arranged at the other end of the mesh belt 211, and the driven shaft 213 is matched with the driving shaft 212 and is used for driving the mesh belt 211 to rotate and convey; the transmission gear 214 is fixedly arranged at one end of the driving shaft 212, which is opposite to the mesh belt 211;

One of the driving shafts 212 of the conveying mechanisms 21 having the same conveying direction is connected to the driving mechanism 22 via a coupling 215, and the driving shafts 212 between the conveying mechanisms 21 having the same conveying direction are rotatably connected via a chain 216. The driving mechanism comprises two gear motors, and the two gear motors correspondingly drive the conveying mechanism 21 with opposite conveying directions.

In the present embodiment, the conveying mechanism 21 is divided into a first conveying mechanism and a second conveying mechanism, and the conveying directions of the two conveying mechanisms are opposite. The first conveying mechanisms form a first conveying combination, and the second conveying mechanisms form a second conveying combination. One of the first conveying mechanisms in the first conveying combination is driven by a gear motor, so that the first conveying mechanisms drive adjacent first conveying mechanisms in the same group, and the first conveying mechanisms in the same group are operated together. And the second conveying combination is driven by another speed reducing motor, and then the second conveying mechanisms drive the adjacent second conveying mechanisms in the same group, so that the second conveying mechanisms in the same group operate together.

Wherein, the adjacent conveying mechanisms 21 in the same group are rotationally connected through a transmission connection mode of a transmission gear 214 and a chain 216, and the rotating shaft of a speed reducing motor is connected with the driving shaft 212 through a coupling 215.

Moreover, in the present embodiment, the number of the conveying mechanisms 21 is odd, so that the food enters from one end of the machine body 10 and exits from the other end, and the situation that the food enters and exits simultaneously and is easy to be confused is avoided; five first conveying mechanisms and four second conveying mechanisms are selected. Of course, the conveying mechanism 21 may be an even number.

In addition, the mesh belt 211 includes a mesh belt body 2111 rotated around the driving shaft 212 and the driven shaft 213, and a plurality of protrusion rings 2112 protruding from the mesh belt body 2111 and extending around a conveying track of the mesh belt body 2111, a conveying groove 2113 for conveying food is defined between adjacent protrusion rings 2112 and the mesh belt body 2111 to convey different kinds of food, such as seafood, meat, vegetable, seafood of different kinds, meat of different kinds, vegetables of different kinds, etc., by kinds of food; depending on the shape of the food, it may be granular food, non-granular food, etc.

The arrangement of the plurality of conveying grooves 2113 plays a role in isolating different kinds of foods, so that the embodiment can avoid the confusion of the different kinds of foods while freezing the different foods.

Specifically, three protrusion rings 2112 are provided to form two conveying grooves 2113, and the conveying grooves 2113 are a first conveying groove for conveying granular food and a second conveying groove for conveying non-granular food, respectively;

wherein, the bottom of the first conveying groove is convexly provided with a plurality of convex hemispherical stop blocks 2114, the stop blocks 2114 are uniformly arranged in an array shape, and the stop blocks 2114 between adjacent rows are arranged in a staggered manner.

Of course, in the present invention, the number of the protruding rings 2112 is not limited to three, and may be three or more, such as four, five, etc. While the provision of the convex hemispherical stopper 2114 in the first conveying trough serves to block the rolling of the granular food product. Because the granular food product rolls on the mesh belt 211 of the next conveyor 21 under the turning of the turning mechanism and the guide of the guide plate 23 when passing from one conveyor 21 to the next conveyor 21. The stopper 2114 is provided to prevent the granular food from rolling, so that the granular food orderly enters the next conveying mechanism, and uneven arrangement of the granular food due to rolling is avoided.

Referring to fig. 4 and 5, in the present embodiment, the turnover mechanism includes a turnover 24 for receiving and turnover the food and unloading the food to the next conveying mechanism 21, and a motor for driving the turnover 24 to rotate, the rotation direction of the turnover 24 is consistent with the rotation direction of the driving shaft 212;

The inverter 24 includes a cylindrical inverter body 241, side plates 242, and a carrier plate 243. The cylindrical turner body 241 is rotationally connected with the motor through a rotating shaft; side plates 242 are provided at both ends of the inverter body 241; the plurality of bearing plates 243 are uniformly arranged on the circumferential surface of the inverter body 241 around the axis of the inverter body 241, and a loading and unloading groove 244 is defined among the side plates 242, the inverter body 241 and the adjacent bearing plates 243;

wherein the loading and unloading groove 244 has a loading state for receiving food, a turning state for turning the received food, and an unloading state for unloading the turned food in rotation;

when the loading and unloading groove 244 is in the inverted state, the bottom surface of the loading and unloading groove 244 is lower than the conveying plane of the conveying mechanism 21.

In the present embodiment, when the loading and unloading slot 244 is in the loading state, the notch of the loading and unloading slot 244 faces the conveying mechanism 21, when the loading and unloading slot 244 is in the turning state, the notch of the loading and unloading slot 244 faces the shutter 23, and when the loading and unloading slot 244 is in the unloading state. The state of the loading and unloading slot 244 is changed by rotating the inverter body 241 by a predetermined angle. In the present embodiment, the number of the carrying plates 243 is five, so that the loading and unloading slots 244 can be changed from the carrying state to the turning state by rotating 72 ° and the turning state can be changed to the unloading state by rotating 72 °.

When the loading and unloading groove 244 is in the inverted state, the bottom surface of the loading and unloading groove 244 is at the highest level. In the present embodiment, the bottom surface of the loading and unloading groove 244 is the first connection surface 243a.

The arrangement is such that when the inverter 24 is in the unloaded state, the food is at a height lower than the conveying plane of the conveying mechanism 21, and the effect of buffering the falling height of the food is achieved, so that the food is prevented from falling directly from the conveying plane of the conveying mechanism 21 onto the next conveying mechanism 21 to damage the food.

In the present embodiment, the carrying plate 243 includes a fixing portion 2431 fixedly connected to the inverter body 241, a carrying portion 2432 extending from the fixing portion 2431 to the outer side of the inverter body 241, and a guiding portion 2433 disposed at the free end of the carrying portion 2432, wherein the guiding portion 2433 is formed by warping from the free end of the carrying portion 2432;

the fixing parts 2431 are connected to each other and cover the circumferential surface of the inverter body 241, and the fixing parts 2431 include a first connection surface 243a and a second connection surface 243b; the bearing portion 2432 includes a receiving surface 243c connected to the first connecting surface 243a and an unloading surface 243d connected to the second connecting surface 243b and located at the back of the receiving surface 243c, and the guide hook portion 2433 includes a leading-in surface 243e connected to the receiving surface 243c and a leading-out surface 243f connected to the unloading surface 243 d;

The leading-in surface 243e and the receiving surface 243c of the carrier plate 243 form a carrier surface 243g, the second connecting surface 243b, the unloading surface 243d and the leading-out surface 243f form a sliding surface 243h, and the carrier surface 243g, the first connecting surface 243a and the sliding surface 243h of the previous carrier plate 243 form the loading and unloading slot 244.

In the present embodiment, the guiding surface 243e of the guiding hook 2433 is a cambered surface and is curved toward the outside of the notch of the loading and unloading slot 244, and when the loading and unloading slot 244 is in the loading state, the guiding surface 243e is used for guiding food into the loading and unloading slot 244 on the one hand and preventing food from sliding out of the loading and unloading slot 244 on the other hand. When the loading and unloading groove 244 is in the unloading state, the guiding surface 243f is used for smoothly guiding food to slide out of the loading and unloading groove 244, so that food falling injury is avoided, and the food sliding out of the loading and unloading groove 244 is accelerated, so that the transfer efficiency is improved.

In addition, the fixing portion 2431 covers the entire circumference of the inverter body 241, so that the connection area between the carrier plate 243 and the inverter body 241 is increased, and the stability of the fixed connection therebetween is improved.

Further, the bearing plate 243 has five pieces, the included angle between the first connecting surface 243a and the bearing surface 243g is 90 ° or more, the second connecting surface 243b and the unloading surface 243d are the same plane, and the included angle between the first connecting surface 243a and the sliding surface 223g is an obtuse angle.

It is apparent that the greater the number of the carrying plates 243, the smaller the accommodating space of the loading and unloading slot 244; the smaller the number of the carrying plates 243, the larger the angle at which the state transition between the loading and unloading slots 244 needs to be rotated, and if the conveying speed of the conveying mechanism 21 is unchanged, the loading and unloading slots 244 need to increase the rotating speed to match the conveying mechanism 21, and once the rotating speed of the loading and unloading slots 244 is too fast, the food is thrown out, and the food is damaged.

Therefore, in the present embodiment, the five loading plates 243 are selected, so that the loading and unloading groove 244 has a suitable accommodating space and a suitable rotation speed. Of course, the number of the carrying plates 243 is not limited thereto, and may be more than five or less than five.

For the setting that the contained angle of first connecting surface 243a and bearing surface 243g is more than or equal to 90, be the circumstances that avoids the two contained angle to be the acute angle, consequently when the contained angle of two is the acute angle, on the one hand the space of acute angle is basically utilized not to be used for holding food on the one hand, and the other hand acute angle space is in the freezing in-process of low temperature and is easy to remain the residue, can pollute other foods. Therefore, the arrangement of the included angle of 90 ° or more can improve the cleanliness of the loading and unloading groove 244. Preferably, the included angle is 90 °. The 90 ° included angle not only improves the cleanliness of the loading and unloading slot 244 but also ensures that the loading and unloading slot 244 has the maximum accommodation and utilization space.

For the second connection surface 243b and the unloading surface 243d to be in the same plane, the flatness of the sliding surface 223g is improved, so that the food can be unloaded smoothly and rapidly; and the included angle between the first connecting surface 243a and the sliding surface 223g is an obtuse angle, when the loading and unloading groove 244 is in an unloading state, the first connecting surface 243a and the sliding surface 223g form a stepped inclined plane with smooth transition, so that the food is quickly separated from the first connecting surface 243a and slides on the sliding surface 223g more smoothly, and the food is prevented from damaging the food due to the contact with the baffle 23 or the next conveying mechanism 21.

Further, the bearing surface 243g is a flexible surface, and the sliding surface 243h is a smooth surface. When the loading and unloading slot 244 is in the loading state, the loading surface 243g is required to receive the food, and when the food falls from the conveying mechanism 21 onto the loading surface 243g, the food collides with the loading surface 243 g. The flexible bearing surface 243g can buffer the collision of food to the bearing surface 243g, thereby avoiding the damage of the food. Of course, a flexible layer may be formed on the bearing surface 223 to cushion the collision of food product with the bearing surface 243 g.

When the loading and unloading slot 244 is in the unloading state, the lower slide surface 243h serves as a guide for the downward sliding of the food item, so that the smooth lower slide surface 243h facilitates the downward sliding of the food item.

In addition, a motor of the flipping mechanism is disposed in the driving installation chamber 12, and the motor is connected to the inverter body 241 of the inverter 24 through a rotation shaft.

Referring to fig. 1 and 6, in the present embodiment, the transmission conveying device further includes a conveying frame 25 provided with a conveying mechanism 21 and rollers provided at four corner areas at the bottom of the conveying frame 25; one side of the machine body 10 is provided with a sealing door 14 which is convenient for the conveying frame 25 to enter the machine body 10 or to exit to the outside, and a guide rail 15 which is arranged on the inner bottom surface of the machine body 10 and is used for rolling connection with the roller; the quick freezer also comprises a limiting component for limiting the rolling of the roller;

the roller comprises a roller body and a groove ring concavely arranged on the circumferential surface of the roller body and used for rolling fit with the guide rail 15;

the rollers include a front roller 261 distal to the seal door 14 and a rear roller 262 proximal to the seal door 14; the limiting assembly includes a first limiting assembly 31 disposed at the end of the guide rail 15 for limiting the front roller 261;

the first limiting assembly 31 includes a supporting portion 311 fixedly connected to the machine body 10, an abutting portion 312 extending from a free end of the supporting portion 311 and forming a matching groove ring, a clamping portion 313 with which the abutting portion 312 is matched for clamping the front roller 261, a detouring portion 314 connected between the abutting portion 312 and the clamping portion 313, and a guiding portion 315 formed at a free end of the clamping portion 313;

The roundabout part 314 is in an inverted U shape and has elastic deformation restoring force, the abutting part 312, the roundabout part 314 and the clamping part 313 form an elastic clamping structure, and the guiding part 315 is in a V shape so as to guide the front roller 261 to enter or exit the range of the elastic clamping structure;

when the first limiting component 31 limits the front roller 261, the roundabout portion 314 is in an elastic stretching state, and the abutting portion 312 and the clamping portion 313 are tightly buckled on the groove ring to limit the front roller 261.

Specifically, when the first limiting component 31 limits the front roller 261, the roundabout portion 314 is stretched by the front roller 261, so that the roundabout portion 314 is in a stretched state, and at this time, the roundabout portion 314 is stretched to have a shrinking elastic force, and under the action of the elastic force, the clamping portion 313 tightly buckles the front roller 261 to limit the front roller.

In addition, one end of the guide rail 15, which is close to the first limiting component 31, is in a sliding shape; when the first limiting component 31 limits the front roller 261, the front roller 261 tends to slide downward, and the front roller 261 abuts against the supporting portion 311.

Specifically, a section of the guide rail 15 having a sliding shape is a sliding section 151, and when the first limiting component 31 limits the front roller 261, the front roller 261 is located on the sliding end 151 and abuts against the supporting light portion 311. By means of the arrangement, the front roller 261 is more closely attached to the abutting part 312, the sliding gravity center of the front roller 261 is just abutted to the supporting part 311, and the sliding of the front roller 261 is stabilized by the strong supporting force of the supporting part 311, so that the front roller 261 has a sliding trend.

Also because the front roller 261 is in a sliding downward trend, the front roller 261 needs to be retracted to overcome not only the clamping force of the first limiting member 31 but also the static friction of the front roller 261 in the sliding down section 151. The stability of the front roller 261 is further improved.

Referring to fig. 7 and 8, in the present embodiment, the limiting assembly further includes a second limiting assembly 32 disposed at the beginning end of the guide rail 15 for limiting the rear roller 262, where the second limiting assembly 32 includes a mating member 321 fixedly disposed at one side of the guide rail 15 and a fastening member 322 disposed at the other side of the guide rail 15 and opposite to the mating member 321;

the convex end surface of the fastening member 322 facing one end of the mating member 321 is composed of an introduction slope 322a for introducing the rear roller 262 into the body 10, a discharge slope 322b for discharging the rear roller 262 out of the body 10, and a fastening plane 322c connected to the introduction slope 322a and the discharge slope 322 b;

the distance from the fastening plane 322c to the mating piece 321 is smaller than the width of the rear roller 262 so as to limit the rear roller 262 passing through the fastening plane 322c from retreating, and the distances from the leading-in inclined surface 322a and the leading-out inclined surface 322b to the mating piece 321 are gradually increased from inside to outside;

wherein, the included angle between the guiding inclined plane 322b and the fastening plane 322c is smaller than the included angle between the guiding inclined plane 322a and the fastening plane 322c, and the vertical distance between the two ends of the guiding inclined plane 322b is larger than the vertical distance between the two ends of the guiding inclined plane 322 a.

In this embodiment, the engaging member 321 is configured to engage the engaging member 322 to create an interference fit with the rear roller 262 to limit the rearward movement of the rear roller 262 past the engaging surface 322c of the engaging member 322. The clasp 322 also functions to support the rear roller 262.

The distance from the lead-in inclined surface 322a and the lead-out inclined surface 322b to the matching piece 321 is gradually increased from inside to outside, so that a lead-in area is formed between the lead-in inclined surface 322a and the matching piece 321, and a lead-out area is formed between the lead-out inclined surface 322b and the matching piece 321. The distance from the fastening plane 322c to the mating member 321 is smaller than the width of the rear roller 262, so that an interference fit area is formed between the fastening plane 322c and the mating member 321.

Therefore, the rear roller 262 enters the guiding area under the action of the external force, and the rear roller 262 enters the interference fit area under the pushing of the continuous external force, and finally passes through the interference fit area and contacts with the guiding-out inclined surface 322b and the matching piece 321 in the guiding-out area, so that the backward movement of the rear roller 262 is limited, the stability of the rear roller 262 is improved, and the stability of the transmission conveying device is improved. Optionally, the width of the front roller 261 is less than or equal to the distance from the fastening plane 322c to the mating member 321, so that the front roller 261 can smoothly pass through the interference fit region.

Further, the included angle between the guiding inclined surface 322b and the fastening plane 322c is smaller than the included angle between the guiding inclined surface 322a and the fastening plane 322c, and the vertical distance between the two ends of the guiding inclined surface 322b is larger than the vertical distance between the two ends of the guiding inclined surface 322 a. Therefore, the opening of the lead-out area is relatively long in depth and relatively narrow in opening with respect to the opening of the lead-out area. Meanwhile, in the lead-out area, the depth of the area where the distance from the lead-out slope 322b to the engaging piece 321 is smaller than the width of the rear roller 262 is longer than that of the lead-in area, that is, the length of the interference fit area existing in the lead-out area is longer than that of the interference fit area existing in the lead-in area.

Thus, it is much more difficult for the rear roller 262 to enter the interference fit region from the lead-out region than from the lead-in region.

The rear roller 262 enters the interference fit region from the lead-out region, and the length of the interference fit region of the lead-out region is long, so that the rear roller 262 needs a longer lasting external force to overcome the resistance of the interference fit region.

When the transmission conveying device operates, the conveying mechanism 21 rotates at the same time, so that the whole conveying mechanism 25 is driven to generate continuous vibration, and the front and rear rollers (261 and 262) roll along the guide rail 15 due to the vibration, so that the rear roller 262 can strike the fastening piece 322, and the rear roller 262 enters the interference fit region from the guiding-out region and even passes through the interference fit region, thereby causing instability to the operation of the embodiment.

Because the vibration is frequency, and not likely to be a continuous force, the rear roller 262 requires a continuous longer force to enter the interference fit region after passing through the interference fit region of the exit region, so that the rear roller 262 is limited in the exit region, thereby improving the stability of the rear roller 262; for example, the time required for the rear roller 262 to pass through the interference fit region of the lead-out area under a force of 10 newtons is 3 seconds; while a 10 newton force generated by vibration can only last for 2 seconds. Thus, under the force of the vibration, the rear roller 262 will advance a small distance without passing through the interference fit region. When the force generated by the vibration is suspended, the interference fit area will react to the rear roller 262, pushing the rear roller 262 back.

Therefore, the included angle between the guiding-out inclined plane 322b and the fastening plane 322c is smaller than the included angle between the guiding-in inclined plane 322a and the fastening plane 322c, and the vertical distance between the two ends of the guiding-out inclined plane 322b is larger than the vertical distance between the two ends of the guiding-in inclined plane 322a, so that the rear roller 262 is easy to enter and difficult to exit.

Further, a plurality of through holes 3221 are hollowed out at one end of the fastening member 322 with the convex end surface, wherein the density of the through holes 3221 near the leading-in inclined surface 322a is greater than that of the through holes 3221 near the leading-out inclined surface 322 b.

The through holes 3221 are provided in that the rigidity of the fastening member 322 is reduced so that one end of the convex end face has stronger deformation performance, and the more the through holes 3221 are provided, the better the deformation performance thereof. Therefore, in the engaging piece 322, the deformation performance of the side close to the lead-in slope 322a is stronger than that of the side of the reverse lead-out slope 322 b. Thus, it is more labor-saving for the rear roller 262 to enter the interference fit region from the lead-in region, and it is relatively more labor-saving for the rear roller 262 to enter the interference fit region from the lead-out region.

Based on the above structure, the second limiting assembly 32 further includes a driving unit for driving the fastening member 322 to slide, where the driving unit includes a sliding rail 323 slidably connected with the fastening member 322, a fixing block 324 disposed on a back surface of the fastening member 322, and a screw 325 fixedly connected to the fastening member 322 through the fixing block 324, the screw 325 is in threaded connection with the fixing block 324, and an extending direction of the sliding rail 323 is perpendicular to an extending direction of the guide rail 15.

By the arrangement, the distance between the fastening piece 322 and the matching piece 321 can be adjusted, so that the tightness of the fastening piece 322 and the matching piece to the rear roller 262 can be adjusted conveniently.

The instant freezer also comprises a cold air circulation device for forcibly circulating the cold air in the freezing chamber 11, wherein the cold air circulation device comprises a fan 41 fixedly arranged between the cold air conveying branch pipes 33, a motor 42 which drives the fan 41 to rotate and is arranged in the electric control chamber 13, and a guide plate 43 sleeved on the fan 41;

The guide plate 43 is provided with an opening, the fan 41 is arranged in the opening, and a space for ventilation is arranged between the guide plate 43 and the inner wall of the machine body 10; the air outlet direction of the fan 41 faces the inner wall of the machine body 10, and air outlets are formed in the periphery of the guide plate 43. The arrangement is such that the air flow flows in from the middle area of the baffle 43, flows out from the periphery of the baffle 43, and forms an air flow circulation to accelerate the freezing effect of the food.

In this embodiment, the operation procedure is as follows:

first, the conveying frame 25 carrying the conveying mechanism 21 is pushed into the freezing chamber 11 of the machine body 10; the process is as follows: under the pushing of the external force, the front roller 261 of the conveying frame 25 rolls along the extending direction of the guide rail 15 on the bottom surface of the freezing chamber 11, passes through the second limiting component 32 and reaches the sliding-down section 151 of the guide rail 15; then, the rear roller 262 contacts the guiding area of the fastening member 322 formed by the guiding inclined surface 322a and the mating member 321, and the rear roller 262 passes through the guiding area formed by the fastening plane 322c and the mating member 321 under the action of the continuous pushing force, so as to abut against the guiding area formed by the guiding inclined surface 322b and the mating member 321, thereby limiting the backward movement of the rear roller 262; meanwhile, the front roller 261 pushes up the guiding portion 315 of the first limiting component 31 and makes the clamping portion 313 connected with the guiding portion 315 stretch upwards, so as to pull the roundabout portion 314 until the front roller 261 abuts against the abutting portion 312, the front roller 261 is in a sliding trend on the sliding end 151, and meanwhile, the clamping portion 313 is tightly fastened with the front roller 261 due to elastic restoring force of the roundabout portion 314, so that rolling of the front roller 261 is limited;

Then, the gear motor and the driving shaft 212 of the conveying mechanism 21 are connected by a coupling 215, and the sealing door 14 is closed.

Then, the transport conveyor is started in the electric control room 13, and the food product starts to be transported, and at the same time, the refrigerating device starts to transport the refrigerating gas, and the cold air circulation device starts to be started, and the fan 41 rotates.

Food enters from the top end opening of the freezing chamber 11 of the machine body 10 and is conveyed to the tail end of the conveying mechanism 21 through the mesh belt 211 in the conveying mechanism 21, so that the food is received by the bearing surface 243g in the loading and unloading groove 244 in the inverter 24 in the inverting mechanism; and in the rotation of the inverter body 241 of the inverter 24, the loading and unloading groove 244 is converted from the loading state to the inverted state, so that the food is inverted; immediately after the loading and unloading slot 244 is put into an unloading state, the food product slides down to the baffle plate 23 under the action of the sliding surface 243h, and is guided to the next conveying mechanism 21 through the baffle plate 23; this is repeated until the food product comes out of the lower opening of the body 10.

This completes the operation of the present embodiment.

Compared with the prior art, the invention has the beneficial effects that: according to the instant freezer, the stacked reciprocating arrangement of the conveying mechanisms reduces the occupied space, and meanwhile, food is transferred and conveyed among the conveying mechanisms, so that the food is prevented from being adhered; meanwhile, when granular food is transferred from the conveying mechanism to the next conveying mechanism, rolling and overturning can occur, so that the food is further prevented from being adhered;

While the present disclosure has been shown and described with respect to one or more implementations, equivalent alterations and modifications will occur to others skilled in the art based upon a reading and understanding of this specification and the annexed drawings. The present disclosure includes all such modifications and alterations and is limited only by the scope of the following claims. Furthermore, while a particular feature of the disclosure may have been disclosed with respect to only one of several implementations, such feature may be combined with one or more other features of the other implementations as may be desired and advantageous for a given or particular application. Moreover, to the extent that the terms "includes," has, "" contains, "or variants thereof are used in either the detailed description or the claims, such terms are intended to be inclusive in a manner similar to the term" comprising.

In summary, although the embodiments of the present invention have been described above, the numbers before the embodiments, such as "first" and "second", are used for convenience of description, and the order of the embodiments of the present invention is not limited. Moreover, the above-mentioned embodiments are not intended to limit the present invention, and those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, so the scope of the present invention is defined by the claims.

Claims

1. The turnover mechanism is characterized by being arranged between the conveying mechanism and the baffle plate and used for turning over food conveyed by the conveying mechanism and transmitting the food to the baffle plate or the conveying head end of the next conveying mechanism;

the inverter includes:

the side plates are arranged at two ends of the turner body;

2. The turnover mechanism as set forth in claim 1, wherein the loading and unloading slot has a loading state for receiving food, a turnover state for turnover of the received food, and an unloading state for unloading of the turnover food in rotation;

3. The turnover mechanism according to claim 2, wherein the carrying plate comprises a fixing part fixedly connected to the turnover body, a carrying part extending from the fixing part to the outer side direction of the turnover body, and a guide hook part arranged at the free end of the carrying part, and the guide hook part is formed by warping from the free end of the carrying part;

4. The turnover mechanism of claim 3 wherein said carrier plate has five sheets, said first connecting surface and said carrier surface have an included angle of 90 ° or more, said second connecting surface and said unloading surface are coplanar, and said first connecting surface and said sliding surface have an included angle of obtuse angle.

5. A turnover mechanism as claimed in claim 3 in which the bearing surface is a flexible surface and the sliding surface is a smooth surface.

6. The instant freezer is characterized by comprising the turnover mechanism as claimed in any one of claims 1-5, wherein the conveying mechanism is driven by a driving mechanism to rotate and convey, a plurality of conveying mechanisms are arranged at intervals in a lamination mode, the conveying directions of the adjacent conveying mechanisms are opposite, and the baffle is arranged between the conveying mechanisms and is positioned at one side of the conveying end of the conveying mechanism;

7. The instant freezer according to claim 6, further comprising a cold air circulation device for forcibly circulating the cold air in the freezer compartment, the cold air circulation device comprising a fan fixedly provided between the cold air delivery branch pipes, a motor provided in the electric control compartment for driving the fan to rotate, and a baffle plate provided in the fan in a sleeved manner;

8. The instant freezer of claim 6, wherein the conveying mechanism is arranged on a conveying frame, and rollers are arranged at four corner areas of the bottom of the conveying frame;

9. The instant freezer of claim 8, wherein the limit assembly further comprises a second limit assembly disposed at a beginning end of the guide rail for limiting the rear roller, the second limit assembly comprising a mating member fixedly disposed on one side of the guide rail and a fastening member disposed on the other side of the guide rail and disposed opposite the mating member;

10. The instant freezer of claim 9, wherein a plurality of through holes are provided in a hollowed-out portion of the end of the engaging member having the convex end surface, wherein the density of the through holes near the lead-in inclined surface is greater than the density of the through holes near the lead-out inclined surface.