阅读说明：本技术 真空冷冻干燥烘焙机 (Vacuum freeze drying baking machine ) 是由 全武 于 2021-07-23 设计创作，主要内容包括：本发明提供一种真空冷冻干燥烘焙机,包括：箱体；箱门；料筐置放架；以及电源连接部,其中,料筐置放架包含m个置放架单元,每个置放架单元含有置放架主体以及置放加热组件,置放加热组件含有n个置放板、以及分别设置在该n个置放板上的n个电加热元件,电源连接部包含m个电源输入单元以及m个外部接线单元,每个电源输入单元具有一对电源输入端子,料框单元中每个电加热元件的两个接线端分别与对应的一对电源输入端子对应连接,每个外部接线单元具有一对接线端子,该一对接线端子分别与外部电源相连接,当料筐置放架被输送进箱体后,接线端子和对应的电源输入端子中的至少一者朝向另一者移动,从而使得该接线端子与对应的电源输入端子相触接。(The invention provides a vacuum freeze-drying baking machine, comprising: a box body; a box door; a basket placing rack; and a power supply connection part, wherein the basket placing frame comprises m placing frame units, each placing frame unit comprises a placing frame main body and a placing heating assembly, the placing heating assembly comprises n placing plates and n electric heating elements respectively arranged on the n placing plates, the power supply connection part comprises m power supply input units and m external wiring units, each power supply input unit is provided with a pair of power supply input terminals, two wiring terminals of each electric heating element in the material frame unit are respectively correspondingly connected with a corresponding pair of power supply input terminals, each external wiring unit is provided with a pair of wiring terminals, the pair of connecting terminals are respectively connected with an external power supply, when the charging basket placing rack is conveyed into the box body, at least one of the connection terminal and the corresponding power input terminal is moved toward the other so that the connection terminal is brought into contact with the corresponding power input terminal.)

1. The utility model provides a vacuum freeze drying curer, is connected with evacuating device and external power supply respectively which characterized in that includes:

the box body is provided with two end parts, and at least one of the two end parts is provided with a feed port and a discharge port;

the box doors are respectively arranged at the at least one material inlet and outlet and are used for opening or closing the material inlet and outlet;

the charging basket placing frame can be conveyed into and out of the box body through the material inlet and outlet and is used for placing a charging basket and carrying out drying and baking treatment; and

a power supply connecting part for connecting the basket placing rack with the external power supply,

wherein the charging basket placing rack comprises m placing rack units which are mutually independent and are sequentially arranged along the length direction of the charging basket placing rack,

each placing frame unit comprises a placing frame main body and a placing heating component arranged in the placing frame main body,

the placing and heating component comprises n placing plates which are mutually independent and are sequentially arranged at intervals from bottom to top and n electric heating elements which are respectively arranged on the n placing plates,

the power supply connecting part comprises m power supply input units which are respectively arranged on the m placing rack main bodies and m external wiring units which are arranged on the box body and are in one-to-one correspondence with the m power supply input units,

each power input unit at least has a pair of power input terminals, two terminals of each electric heating element in the shelf unit are respectively correspondingly connected with the corresponding pair of power input terminals,

each of the external wiring units has at least one pair of wiring terminals connected to the external power supply,

when the basket placing rack is conveyed into the box body, at least one of the connecting terminal and the corresponding power input terminal moves towards the other so that the connecting terminal is contacted with the corresponding power input terminal,

and m and n are respectively positive integers which are more than or equal to 2.

2. The vacuum freeze-drying curer according to claim 1, characterized in that:

wherein the power input terminal is fixedly arranged on the corresponding placement frame main body and extends along the length direction of the charging basket placement frame,

the external wiring unit includes a pair of power cylinders in one-to-one correspondence with the pair of power input terminals,

each power cylinder is provided with a cylinder body and a piston rod movably arranged in the cylinder body,

the cylinder body is fixedly arranged on the box body,

the piston rod is used as the wiring terminal, and two end parts of the piston rod respectively extend out of the end surface of the cylinder body to form a wiring end part used for being connected with the external power supply and a contact end part used for being in contact with the power supply input terminal.

3. The vacuum freeze-drying curer according to claim 1, characterized in that:

the number of the heating assemblies is two, and the two heating assemblies are arranged side by side in the width direction of the charging basket placing rack.

4. The vacuum freeze-drying curer of claim 1, further comprising:

a placing frame conveying part for conveying the charging basket placing frame to enter and exit the box body,

wherein the placing rack conveying part comprises a first conveying guide rail, a second conveying guide rail and m pulley units respectively corresponding to the m placing rack units,

the first conveying guide rail is fixedly arranged on the top wall in the box body and extends along the length direction of the box body,

the second conveying rail is located outside the box body and corresponds to the first conveying rail,

each pulley unit comprises a plurality of pulley assemblies which are arranged on the top of the corresponding placing frame main body at intervals along the length direction of the charging basket placing frame and matched with the first conveying guide rail and the second conveying guide rail as upper pulley assemblies.

5. The vacuum freeze-drying curer according to claim 4, characterized in that:

wherein the cross section shapes of the first conveying guide rail and the second conveying guide rail are both inverted T-shaped or I-shaped,

each upper pulley component comprises a roller seat, at least one pair of sliding rollers and at least one pair of limiting rollers which are arranged on the roller seat,

the roller wheel seat is rotatably arranged on the corresponding placing frame main body,

the rotating shaft of the sliding roller is transversely arranged,

the rotating shaft of the limiting idler wheel is vertically arranged.

6. The vacuum freeze-drying curer according to claim 4 or 5, characterized in that:

wherein the number of the upper pulley assemblies in each of the pulley units is three,

the pulley unit also comprises a pulley mounting component used for mounting the three upper pulley components on the corresponding placement frame main body,

the pulley mounting assembly comprises a middle rotating rod and two side rotating rods which respectively correspond to the three upper pulley assemblies,

the middle part of the middle rotating rod is rotatably connected with the corresponding placing rack main body, one upper pulley component is arranged on the middle part of the middle rotating rod,

one end part of each of the two side rotating rods is respectively and rotatably connected with the two end parts of the middle rotating rod, the other end part of each of the two side rotating rods is used as a free end part and is respectively and correspondingly movably connected with the placement frame main body, and the rest two upper pulley assemblies are respectively arranged on the two free end parts.

7. The vacuum freeze-drying curer according to claim 1, characterized in that:

wherein, the bottom of each placement frame main body is provided with a plurality of pulley assemblies as lower pulley assemblies.

8. The vacuum freeze-drying curer according to claim 1, characterized in that:

wherein the box door comprises a fixed frame fixedly arranged on the box body, a door body used for covering the material inlet and the material outlet, a moving part used for driving the door body to move relative to the material inlet and the material outlet along the width direction or the height direction of the box body, and a pressing part used for pressing the door body on the material inlet and the material outlet,

the moving part comprises a moving frame which is arranged on the fixed frame and can move relative to the material inlet and outlet and a moving driving unit for driving the moving frame to move,

the pressing part comprises at least one pressing driving component which is fixedly arranged on the moving frame and is respectively connected with the door body,

when the moving driving unit drives the moving frame to move so that the door body moves to a position corresponding to the material inlet and outlet, the pressing driving component drives the door body to move towards the material inlet and outlet, and therefore the door body is pressed on the material inlet and outlet.

9. The vacuum freeze-drying curer of claim 8, wherein:

wherein the moving part further comprises a moving frame mounting unit for mounting the moving frame on the fixed frame,

the movable frame mounting unit is of a guide rail and sliding block structure.

10. The vacuum freeze-drying curer of claim 9, wherein:

wherein the guide rail sliding block structure comprises a first installation guide rail, a second installation guide rail, at least one first sliding block which corresponds to and is matched with the first installation guide rail respectively, and at least one second sliding block which corresponds to and is matched with the second installation guide rail respectively,

the first mounting guide rail and the second mounting guide rail are respectively and fixedly arranged on two end parts of the fixed frame in the direction vertical to the moving direction of the door body,

the first sliding block and the second sliding block are respectively and fixedly arranged on two end parts of the movable frame in the direction vertical to the moving direction of the door body,

the movable frame is arranged on the fixed frame in a mode that the first sliding block is arranged on the first installation guide rail in a sliding mode and the second sliding block is arranged on the second installation guide rail in a sliding mode.

Technical Field

The invention belongs to the technical field of food processing equipment, and particularly relates to a vacuum freeze drying baking machine.

Background

The vacuum freeze-dried food and the vacuum freeze-baked food are characterized in that water in the food is quickly frozen into ice, and then the ice is sublimated into gas by high-temperature heating in a vacuum environment, so that the food is dehydrated, dried or baked, has the advantages of light weight, easy preservation, fresh keeping, no need of refrigeration, long shelf life and the like, and is more and more favored by people.

Vacuum freeze-drying curer on the existing market includes that box, charging basket place frame and heater block, and the heater block contains fixes on the inside wall of box and from the heating plate part that the multilayer that up interval arrangement in proper order contains electric heating element down, and the charging basket is placed the frame and is contained from up interval arrangement in proper order down and be used for placing the multilayer shelf of charging basket. When the food drying and baking machine is used for processing, a plurality of charging baskets containing food to be processed are respectively placed on the multilayer shelf, the multilayer shelf and the multilayer heating plate component are correspondingly inserted when the charging basket placing rack is pushed into the box body, and the food in the charging baskets is heated by the adjacent heating plate components to realize drying and baking. Therefore, a space for placing the charging basket and a space for heating parts are reserved between two adjacent shelves, so that the space utilization rate of the box body and the charging basket placing frame is low; moreover, the drying and baking mode has low heating efficiency and high energy consumption.

Disclosure of Invention

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a vacuum freeze-drying and baking machine which can improve the space utilization of a box body and a basket shelf, has high heating efficiency, and is easy and convenient to operate.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a vacuum freeze drying baking machine, which is respectively connected with a vacuumizing device and an external power supply, and has the characteristics that: the box body is provided with two end parts, and at least one of the two end parts is provided with a feed port and a discharge port; the box doors are respectively arranged at the at least one material inlet and outlet and are used for opening or closing the material inlet and outlet; the charging basket placing frame can be conveyed into and out of the box body through the charging and discharging port and is used for placing the charging basket and carrying out drying and baking treatment; and a power supply connecting part for connecting the basket placing rack with an external power supply, wherein the basket placing rack comprises m placing rack units which are independent from each other and are sequentially arranged along the length direction of the basket placing rack, each placing rack unit comprises a placing rack main body and a placing heating assembly arranged in the placing rack main body, the placing heating assembly comprises n placing plates which are independent from each other and are sequentially arranged at intervals from bottom to top and n electric heating elements respectively arranged on the n placing plates, the power supply connecting part comprises m power supply input units respectively arranged on the m placing rack main bodies and m external wiring units which are arranged on the box body and correspond to the m power supply input units one by one, each power supply input unit at least comprises a pair of power supply input terminals, and two wiring terminals of each electric heating element in the placing rack unit are respectively correspondingly connected with the corresponding pair of power supply input terminals, each external wiring unit is at least provided with a pair of wiring terminals which are respectively connected with an external power supply, when the charging basket placing frame is conveyed into the box body, at least one of the wiring terminals and the corresponding power supply input terminals moves towards the other one, so that the wiring terminals are in contact with the corresponding power supply input terminals, and m and n are positive integers which are more than or equal to 2 respectively.

In the vacuum freeze-drying roasting machine provided by the invention, the vacuum freeze-drying roasting machine also can have the following characteristics: the external wiring unit comprises a pair of power cylinders in one-to-one correspondence with the corresponding pair of power input terminals, each power cylinder is provided with a cylinder body and a piston rod movably mounted in the cylinder body, the cylinder bodies are fixedly arranged on the box body, the piston rods are used as wiring terminals, and the two end portions respectively extend out of the end face of the cylinder body to form a wiring end portion connected with an external power supply and a contact end portion in contact with the power input terminals.

In the vacuum freeze-drying roasting machine provided by the invention, the vacuum freeze-drying roasting machine also can have the following characteristics: wherein, place heating element's quantity for two, two place heating element and arrange side by side in the width direction of charging basket storage rack.

In the vacuum freeze-drying roasting machine provided by the invention, the vacuum freeze-drying roasting machine also can have the following characteristics: further comprising: place a conveying part for carry the charging basket and place a frame business turn over box, wherein, place a conveying part and contain first conveying guide rail, second conveying guide rail and respectively place a m pulley unit that the frame unit corresponds with m, first conveying guide rail is fixed to be set up on the roof in the box and extend along the length direction of box, second conveying guide rail is located the outside of box and corresponding with first conveying guide rail, every pulley unit contains along the length direction interval setting of charging basket place the frame put the top of main part and with a plurality of loose pulley assembly as upper pulley subassembly that first conveying guide rail and second conveying guide rail homogeneous phase match at the corresponding place.

In the vacuum freeze-drying roasting machine provided by the invention, the vacuum freeze-drying roasting machine also can have the following characteristics: the cross section shapes of the first conveying guide rail and the second conveying guide rail are both inverted T-shaped or I-shaped, each upper pulley component comprises a roller seat, at least one pair of sliding rollers and at least one pair of limiting rollers, the at least one pair of sliding rollers and the at least one pair of limiting rollers are mounted on the roller seat, the roller seats are rotatably mounted on the corresponding placement frame main bodies, the rotating shafts of the sliding rollers are transversely arranged, and the rotating shafts of the limiting rollers are vertically arranged.

In the vacuum freeze-drying roasting machine provided by the invention, the vacuum freeze-drying roasting machine also can have the following characteristics: wherein, the quantity of the upper pulley subassembly in every pulley unit is three, the pulley unit still contains and is used for installing the pulley mounting subassembly on the corresponding place frame main part with three upper pulley subassembly, the pulley mounting subassembly contains middle dwang and two lateral part dwangs corresponding with three upper pulley subassembly respectively, the middle part of middle dwang and the corresponding place frame main part rotatable coupling, an upper pulley subassembly is installed on the middle part of dwang in the middle of this, an tip of two lateral part dwangs respectively with two tip rotatable coupling of middle dwang, another tip of two lateral part dwangs is as free end respectively with corresponding place frame main part swing joint, remaining two upper pulley subassemblies are installed respectively on two free end.

In the vacuum freeze-drying roasting machine provided by the invention, the vacuum freeze-drying roasting machine also can have the following characteristics: wherein, the bottom of each placement frame main body is provided with a plurality of pulley assemblies as lower pulley assemblies.

In the vacuum freeze-drying roasting machine provided by the invention, the vacuum freeze-drying roasting machine also can have the following characteristics: wherein, the chamber door contains the fixed frame of fixed setting on the box, a door body for covering business turn over material mouth, a moving part for driving this door body to move the action for business turn over material mouth along the width direction or the direction of height of box, and be used for compressing tightly the portion that compresses tightly on business turn over material mouth with the door body, moving part contains and installs on the fixed frame and can carry out the removal frame that removes for business turn over material mouth, and be used for driving this removal frame and carry out the removal drive unit that moves the action, compressing tightly the portion and contain fixed setting on removing the frame and with the at least one of door body and compress tightly driving member that is connected respectively, after the removal drive unit drive removes the frame and removes the messenger door body and move to the position corresponding with business turn over material mouth, compress tightly driving member and drive the direction removal of door body towards business turn over material mouth, thereby compress tightly the door body on business turn over material mouth.

In the vacuum freeze-drying roasting machine provided by the invention, the vacuum freeze-drying roasting machine also can have the following characteristics: the moving part also comprises a moving frame mounting unit used for mounting the moving frame on the fixed frame, and the moving frame mounting unit is of a guide rail sliding block structure.

In the vacuum freeze-drying roasting machine provided by the invention, the vacuum freeze-drying roasting machine also can have the following characteristics: the guide rail sliding block structure comprises a first installation guide rail, a second installation guide rail, at least one first sliding block corresponding to and matched with the first installation guide rail respectively, and at least one second sliding block corresponding to and matched with the second installation guide rail respectively, wherein the first installation guide rail and the second installation guide rail are fixedly arranged on two end parts of the fixed frame in the direction perpendicular to the moving direction of the door body respectively, the first sliding block and the second sliding block are fixedly arranged on two end parts of the movable frame in the direction perpendicular to the moving direction of the door body respectively, and the movable frame is arranged on the fixed frame in a mode that the first sliding block is slidably arranged on the first installation guide rail and the second sliding block is slidably arranged on the second installation guide rail.

Action and Effect of the invention

According to the vacuum freeze-drying baking machine, the charging basket placing frame comprises m placing frame units which are mutually independent and are sequentially arranged along the length direction of the charging basket placing frame, each placing frame unit comprises a placing frame main body and a placing heating assembly arranged in the placing frame main body, each placing heating assembly comprises n placing plates which are mutually independent and are sequentially arranged from bottom to top at intervals, and n electric heating elements respectively arranged on the n placing plates, the electric heating elements are integrated on the placing plates, a heating plate component is not required to be independently arranged, only a space of the charging basket needs to be reserved between every two adjacent placing plates, the space utilization rate of the box body and the charging basket placing frame is greatly improved, the heating efficiency is also improved, and the charging basket placing frame adopts a modularized structure, so that food can be conveniently placed and maintained; the power supply connecting part comprises m power supply input units which are respectively arranged on m placing frame main bodies, and m external wiring units which are arranged on the box body and are in one-to-one correspondence with the m power supply input units, each power supply input unit at least comprises a pair of power supply input terminals, two wiring ends of each electric heating element in the placing frame units are respectively and correspondingly connected with the corresponding pair of power supply input terminals, each external wiring unit at least comprises a pair of wiring terminals, the pair of wiring terminals are respectively connected with the external power supply, after the material basket placing frame is conveyed into the box body, at least one of the wiring terminals and the corresponding power supply input terminals moves towards the other one, so that the wiring terminals are in contact with the corresponding power supply input terminals, the power supply for the electric heating elements can be conveniently realized, and the operation is simple and convenient.

Drawings

FIG. 1 is a schematic perspective view of a vacuum freeze drying roaster according to an embodiment of the present invention, wherein a door of the roaster is opened and a basket is placed outside the roaster;

FIG. 2 is a schematic perspective view of the vacuum freeze-drying roaster according to the embodiment of the present invention, wherein the charging basket is placed in the oven body, but the door of the oven is opened;

FIG. 3 is a schematic perspective view of the vacuum freeze-drying roaster according to the embodiment of the present invention, wherein the charging basket is placed in the box body and the door of the box is closed;

FIG. 4 is a schematic perspective view of a door in an embodiment of the present invention;

FIG. 5 is an exploded view of the door of the present invention;

FIG. 6 is a schematic perspective view of a shelf unit according to an embodiment of the present invention;

figure 7 is a schematic perspective view of a sheave assembly according to an embodiment of the present invention;

FIG. 8 is an exploded mounting schematic view of an external wiring unit in an embodiment of the invention;

FIG. 9 is a schematic perspective view of a shelf unit according to a first modification of the present invention;

fig. 10 is a perspective view of a pulley assembly and a pulley mounting assembly according to a first modification of the present invention;

FIG. 11 is a schematic perspective view of a second modified example of the rack unit according to the present invention; and

fig. 12 is a perspective view schematically showing a pulley assembly according to a second modification of the present invention.

Detailed Description

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the vacuum freeze drying and baking machine of the present invention.

< example >

FIG. 1 is a schematic perspective view of a vacuum freeze drying roaster according to an embodiment of the present invention, wherein a door of the roaster is opened and a basket is placed outside the roaster; FIG. 2 is a schematic perspective view of the vacuum freeze-drying roaster according to the embodiment of the present invention, wherein the charging basket is placed in the oven body, but the door of the oven is opened; fig. 3 is a schematic perspective view of the vacuum freeze-drying roasting machine in a state that the basket is placed in the box body and the door is closed according to the embodiment of the present invention.

As shown in fig. 1 to 3, in the present embodiment, the vacuum freeze-drying/baking machine 100 is connected to a vacuum extractor (not shown) and an external power source (not shown) respectively, and is used for performing vacuum freeze-drying or vacuum freeze-baking on the food to be processed. The vacuum freeze-drying roaster 100 includes a cabinet 10, a door 20, a basket shelf 30, a shelf conveyor 40, a power supply connector 50, and a controller (not shown).

As shown in fig. 1 to 3, the casing 10 is fixed to a base (not shown) and has a rectangular parallelepiped structure or a square structure made of a metal material. The housing 10 has two ends, one of which is provided with a feed port 11 for feeding the basket holder 30 into and out of the housing 10. A vacuumizing port 12 for connecting with a vacuumizing device is arranged on one side part of the box body 10; of course, the vacuum outlet 12 may be disposed on the top of the box 10 or on the other end of the box where the material inlet 11 and the material outlet 11 are not disposed, as required.

FIG. 4 is a schematic perspective view of a door in an embodiment of the present invention; fig. 5 is an exploded view of the door of the present invention.

As shown in fig. 1 to 5, a door 20 is installed at the material inlet/outlet 11 of the housing 10 for opening or closing the material inlet/outlet 11, and the door 20 and the housing 10 together form a freeze-drying oven of a closed structure. The door 20 includes a fixed frame 21, a door 22, a moving portion 23, and a pressing portion 24.

As shown in fig. 1 to 5, a fixing frame 21 is fixedly disposed at the material inlet/outlet 11 of the box 10 for mounting the door 22, the moving part 23 and the pressing part 24.

The fixed frame 21 is a frame shaped like "Contraband" formed by welding metal profiles, and has a first fixed beam 211 and a second fixed beam 212 fixedly connected to the top and bottom of the cabinet 10, respectively, and a third fixed beam 213 connected to the left end portions of the first fixed beam 211 and the second fixed beam 212, respectively.

In this embodiment, a bearing mounting beam 214 is disposed at a central position of a side of the fixing frame 21 far away from the material inlet/outlet 11, the bearing mounting beam 214 is vertically arranged, and two end portions thereof are respectively bent toward the fixing frame 21 and are respectively fixedly connected with the first fixing beam 211 and the second fixing beam 212.

As shown in fig. 1 to 5, the door 22 is used to cover the material inlet/outlet 11, and includes a door plate 221 that matches the shape of the material inlet/outlet 11, and a gasket 222 that is provided on a side surface of the door plate 221 facing the material inlet/outlet 11 and matches the shape of the material inlet/outlet 11. In the present embodiment, the door 22 further has a plurality of ribs 223 fixedly disposed on the side of the door panel 21 away from the material inlet/outlet 11, and the plurality of ribs 223 are arranged in a mesh shape.

As shown in fig. 1 to 5, the moving portion 23 is provided on the fixed frame 21, and drives the door 22 to move in the width direction (i.e., horizontal direction) of the housing 10 with respect to the material inlet/outlet 11. The moving unit 23 includes a moving frame 231, a moving frame mounting unit 232, and a moving drive unit 233.

The movable frame 231 is a frame shaped like a Chinese character tian formed by welding metal profiles, is movably mounted on the fixed frame 21 and can move along the width direction of the box body 10 relative to the material inlet/outlet 11, and further drives the door 22 and the pressing portion 24 to move.

The moving frame mounting unit 232 is used for movably mounting the moving frame 231 on the fixed frame 21, and has a rail-slider structure, and includes a first mounting rail 232a, two first sliders 232b, a second mounting rail 232c, two second sliders 232d, and three guide support roller members 232 e.

The first mounting rail 232a is fixedly arranged on the first fixed beam 211 of the fixed frame 21, and the two first sliders 232b are respectively fixedly arranged on two sides of the upper end of the movable frame 231 and matched with the first mounting rail 232 a; the second mounting rail 232c is fixedly disposed on the second fixing beam 212 of the fixing frame 21, and the two second sliders 232d are respectively and fixedly disposed at two sides of the lower end portion of the moving frame 231 and are matched with the second mounting rail 232 c. The moving frame 231 is movably mounted on the fixed frame 21 by means of two first sliders 232b respectively slidably mounted on the first mounting rail 232a and two second sliders 232d respectively slidably mounted on the second mounting rail 232 c.

The three guide support roller members 232e are fixedly disposed on the lower end surface of the moving frame 231 at equal intervals, the upper end surface of the second fixed beam 212 of the fixed frame 21 is provided with a guide support line (not shown) along the length direction of the second fixed beam 212 (i.e., the moving direction of the door body 22), and the three guide support roller members 232e are respectively mounted on the guide support line.

The moving driving unit 233 is used for driving the moving frame 231 to move along the width direction of the box 10, and further drives the pressing portion 24 and the door 22 to move. The movement driving unit 233 includes a screw 233a, a nut 232b, a movement driving member 232c, and a support bearing 232 d.

The screw 233a is disposed along the moving direction of the door body 22.

The nut member 232b is fixedly disposed on the left side portion of the moving frame 231 through a mounting plate, and is fitted over the screw 233 a.

The movement driving member 232c is fixed to the third fixing beam 213 of the moving frame 21 at a central position thereof, and is connected to a left end of the screw 232b to drive the screw 233a to rotate. In the present embodiment, the movement driving means 232c employs a reduction motor composed of a servo motor and a reducer.

The support bearing 232d is fixedly provided at a central position of the bearing mounting beam 214 of the fixed frame 21, and is fitted over a right end portion of the screw 233 a.

As shown in fig. 1 to 5, the pressing portion 24 is provided on the moving frame 231 of the moving portion 23, and is used for pressing the door 22 against the material inlet/outlet 11. The pressing portion 24 includes twelve pressing driving members 241, and the twelve pressing driving members 241 are fixedly disposed on the moving frame 231 at equal intervals in the circumferential direction of the moving frame 231. After the moving driving unit 233 drives the moving frame 231 to move so that the door 22 moves to a position corresponding to the material inlet/outlet 11, the pressing driving member 241 drives the door 22 to move toward the material inlet/outlet 11, so as to press the door 22 on the material inlet/outlet 11.

In the present embodiment, the pressing drive member 241 is a pneumatic cylinder, and the door body 22 is mounted on the free end of the piston rod of all the pneumatic cylinders. Of course, the pressing driving member 241 may be an electric cylinder or a hydraulic cylinder according to actual requirements.

Fig. 6 is a schematic perspective view of a shelf unit according to an embodiment of the present invention.

As shown in fig. 1, 2 and 6, the basket receiving shelf 30 may be conveyed into and out of the housing 10 through the material inlet/outlet 11 for receiving a basket and performing a drying baking process. The basket shelf 30 includes m shelf units 31 which are independent of each other and are sequentially arranged along the length direction of the basket shelf 30, and m is a positive integer greater than or equal to 2. In the present embodiment, m is 3.

Each rack unit 31 includes a rack body 311 and two rack heating units 312 disposed in the rack body 311.

The shelf body 311 is a rectangular parallelepiped frame formed by welding metal profiles. In this embodiment, the front end portion and the rear end portion of the shelf body 311 are respectively provided with a front lap 311a and a rear lap 311b which are matched with each other, and two adjacent shelf units 31 are connected by overlapping the front lap 311a and the rear lap 311b with each other.

The two placing and heating assemblies 312 are arranged side by side at intervals in the width direction of the basket placing rack 30, each placing and heating assembly 312 comprises n placing plates 312a which are independent from each other and sequentially arranged at intervals from bottom to top, and n electric heating elements (not shown in the figure) respectively arranged on the n placing plates 312a, wherein n is a positive integer greater than or equal to 2. In this embodiment, the electric heating element is an electric heating tube.

Figure 7 is a perspective view of a sheave assembly in an embodiment of the present invention.

As shown in fig. 1 to 3, 6, and 7, the rack conveyance unit 40 is used to convey the basket rack 30 into and out of the box 10, and includes a first conveyance rail 41, a second conveyance rail 42, and m pulley units 43.

The first conveying rail 41 serves as an in-box rail, is fixedly provided at a middle position of a top wall in the box 10, and extends in a longitudinal direction of the box 10.

The second conveying rail 42 serves as an out-of-box rail, is located outside the box body 10, and corresponds to the first conveying rail 41. In the present embodiment, the cross-sectional shapes of the first conveying rail 41 and the second conveying rail 42 are both inverted "T" shapes or "i" shapes; and a space corresponding to the thickness of the door 20 is left between the two to leave a sufficient moving space for opening or closing the door 20.

The m pulley units 43 correspond to the m cage units 31, respectively, and each pulley unit 43 includes a plurality of pulley assemblies 431, and the pulley assemblies 431 are disposed at intervals along the length direction of the basket cage 30 on the top of the corresponding cage main body 311 and are matched with the first and second conveying rails 41 and 42.

Each pulley assembly 431 includes a roller base 431a, and a pair of sliding rollers 431b and two pairs of limit rollers 431c mounted on the roller base 431 a.

The roller mount 431a is horizontally rotatably mounted on the corresponding shelf body 311 via a bearing member 431 d.

Each pair of the slide rollers 431b is symmetrically disposed at both sides of the first and second conveying rails 41 and 42, and a rotation shaft of each slide roller 431 is laterally disposed.

Two pairs of limiting rollers 431c are respectively positioned at the front end and the rear end of the pair of sliding rollers 431b, each pair of limiting rollers 431c are symmetrically arranged at the two sides of the first conveying guide rail 41 and the second conveying guide rail 42, and the rotating shaft of each limiting roller 431c is vertically arranged.

Fig. 8 is an exploded installation view of an external wiring unit in an embodiment of the present invention.

As shown in fig. 1 to 3, 6 and 8, the power supply connection unit 50 is used to connect the basket shelf 30 to an external power supply, and includes m power supply input units 51 and m external connection units 52.

The m power input units 51 are respectively provided on the m cage bodies 311, and each power input unit 51 has a pair of power input terminals 511 and a pair of internal connection terminals 522. In the present embodiment, the power input terminal 511 and the internal connection terminal 522 are each a conductive metal strip plate.

The pair of power input terminals 511 are located at the top of the corresponding rack main body 311, are fixedly provided at both sides of the corresponding pulley unit 43, and each extend along the length direction of the basket rack 30.

A pair of inner terminal blocks 522 are provided between the pair of power input terminals 511 and each extend along the length direction of the basket shelf 30, and each inner terminal block 522 is electrically connected to the corresponding power input terminal 511 by a wire. The two terminals of each electric heating element in the rack unit 31 are respectively connected to a corresponding pair of internal connection terminals 522 through wires, and further connected to a corresponding pair of power input terminals 511. In the present embodiment, the terminal of each electric heating element is located at the inner end of the corresponding placing plate 312a (i.e., near the side end of the other placing plate), so that all the wires connected to the electric heating elements are accommodated in the gap between the two placing heating members 312.

The m external wiring units 52 are respectively provided on the top of the case 10, and correspond one-to-one to the m power input units 51. Each external wiring connection unit 52 includes a wiring connection box body 521, a box cover 522, and a pair of power cylinders 523.

The junction box body 521 is formed of four side walls and a top wall of the case 10, and a bottom thereof is provided with two through holes 521a corresponding to the pair of power input terminals 511, respectively.

The cover 522 is attached to the junction box body 521.

A pair of power cylinders 523 is installed in the junction box body 521 at positions of the two through holes 521a, each power cylinder 523 having a cylinder body 523a, a piston rod 523b, and a contact block 523 c. In this embodiment, the power cylinder 523 is a double-headed pneumatic cylinder; of course, the power cylinder 523 may also be a double-headed electric cylinder or a double-headed hydraulic cylinder according to actual needs.

The cylinder 523a is fixedly disposed on the top wall of the casing 10 through a disk seat 523d and a disk seat 523e arranged up and down. The disk holder 523d has a through hole matching the lower end portion of the piston rod 523b, and the disk holder 523e has a through hole matching the contact block 523 c.

The piston rod 523b serves as a connection terminal and is movably installed in the cylinder 523 a. The upper end of the piston rod 523b extends out of the upper end face of the cylinder 523a to form a wiring end for connecting with an external power supply; the lower end of the piston rod 523b extends out of the lower end surface of the cylinder 523a and into the corresponding through hole 521a to form a contact end for contacting with the corresponding power input terminal 511.

The contact block 523c is positioned in the corresponding through hole 521a and fixedly mounted on the corresponding contact end portion, and has a shape matching the power input terminal 511. After the basket placing rack 30 is conveyed into the box 10, the connecting terminal (i.e., the piston rod 523b) moves downward toward the power input terminal 511, so that the contact block 523c on the contact end of the piston rod 523b contacts with the corresponding power input terminal 511, and all the electric heating elements in the placing rack unit 31 are communicated with an external power supply, thereby supplying power to all the electric heating elements.

The control part is in communication connection with the door 30, the power supply connecting part 50 and the vacuum extractor respectively, and is used for controlling the door 30, the power supply connecting part 50 and the vacuum extractor to work.

In this embodiment, the operation of the vacuum freeze dryer 100 includes the following steps:

step S1, the pressing driving member 241 works to drive the door 22 to move in a direction away from the material inlet/outlet 11, so that the door 22 is separated from the material inlet/outlet 11; the moving driving unit 233 operates to drive the moving frame 231 to move leftward to open the feeding and discharging port 11, as shown in fig. 1.

In step S2, the basket shelf 30 is conveyed into the box 10 through the material inlet/outlet 11, as shown in fig. 2.

In step S3, the movement driving unit 233 operates to drive the moving frame 231 to move rightward to move the door 22 to a position corresponding to the material inlet/outlet 11, and then the pressing driving member 241 operates to drive the door 22 to move toward the material inlet/outlet 11, so as to press the door 22 against the material inlet/outlet 11, as shown in fig. 3.

Step S4, starting a vacuumizing device to perform vacuum freezing; then, the power cylinder 523 is operated to move the piston rod 523b as the connection terminal downward, so that the contact block 523c on the contact end of the piston rod 523b contacts with the corresponding power input terminal 511, thereby supplying power to all the electric heating elements in the basket placing shelf 30 and starting vacuum drying or vacuum baking.

Step S5, after the vacuum freeze drying or vacuum baking is completed, the power cylinder 523 operates to drive the piston rod 523b serving as the connection terminal to move upward, so that the contact block 523c on the contact end of the piston rod 523b is separated from the corresponding power input terminal 511; the traverse driving unit 233 operates to drive the moving frame 231 to move leftward to open the feed/discharge port 11.

Step S6, the basket placing rack 30 is transported out of the box 10 through the material inlet/outlet 11, so as to complete a vacuum freeze drying or vacuum freeze baking process.

Effects and effects of the embodiments

According to the vacuum freeze drying baking machine related to this embodiment, because the charging basket placing rack comprises m placing rack units which are mutually independent and are sequentially arranged along the length direction of the charging basket placing rack, each placing rack unit comprises a placing rack main body and a placing heating assembly arranged in the placing rack main body, the placing heating assembly comprises n placing plates which are mutually independent and are sequentially arranged at intervals from bottom to top, and n electric heating elements respectively arranged on the n placing plates, the electric heating elements are integrated on the placing plates, a heating plate component is not required to be independently arranged, so that only the space of the charging basket needs to be reserved between every two adjacent placing plates, the space utilization rate of the box body and the charging basket placing rack is greatly improved, the heating efficiency is also improved, the charging basket placing rack adopts a modularized structure, so that food can be conveniently placed and maintained; the power supply connecting part comprises m power supply input units which are respectively arranged on m placing frame main bodies, and m external wiring units which are arranged on the box body and are in one-to-one correspondence with the m power supply input units, each power supply input unit at least comprises a pair of power supply input terminals, two wiring ends of each electric heating element in the placing frame units are respectively and correspondingly connected with the corresponding pair of power supply input terminals, each external wiring unit at least comprises a pair of wiring terminals, the pair of wiring terminals are respectively connected with the external power supply, after the material basket placing frame is conveyed into the box body, at least one of the wiring terminals and the corresponding power supply input terminals moves towards the other one, so that the wiring terminals are in contact with the corresponding power supply input terminals, the power supply for the electric heating elements can be conveniently realized, and the operation is simple and convenient.

In addition, because the piston rod of the double-head power cylinder is adopted as the wiring terminal, the purchase is easy, the cost is low, and the automation of the power supply operation for the electric heating element is further improved.

Further, because power input terminal extends along the length direction of charging basket placing rack, even if charging basket placing rack has a little front and back position deviation in the box, also can guarantee binding post and power input terminal normal connection, further guaranteed the reliability of power supply.

In addition, because the quantity of putting heating plate subassembly is two, two are put heating plate subassembly and are arranged side by side on the width direction that the frame was place to the charging basket for it can not take place to warp because of the oversize to place the board, has further improved the stability that the frame was placed to the charging basket.

In addition, because still have and place a frame conveying part, this place a frame conveying part adopts the guide rail pulley structure of top suspension type, simple structure, easily makes, also saves ground space.

Further, because pulley assembly contains spacing gyro wheel, prevent to drop from the landing subassembly from the guide rail, further improved the stability that the frame was put to the charging basket and carried.

In addition, the box door is provided with a moving part and a pressing part, the moving part comprises a moving frame capable of moving relative to the material inlet and outlet and a moving driving unit for driving the moving frame to move, the pressing part comprises at least one pressing driving component which is fixedly arranged on the moving frame and is respectively connected with the door body, and after the moving driving unit drives the moving frame to move to enable the door body to move to a position corresponding to the material inlet and outlet, the pressing driving component drives the door body to move towards the material inlet and outlet, so that the door body is pressed on the material inlet and outlet, the door body can be automatically opened and closed, the door opening time is saved, the manpower is reduced, and the phenomenon that the door is easily tripped in a manual door opening and closing mode of threaded connection in the prior art is avoided; and compared with the box door with a side-opening structure, the box door occupies smaller operation space and saves space.

In addition, because the moving part also comprises a moving frame mounting unit for mounting the moving frame on the fixed frame, the moving frame mounting unit adopts a guide rail sliding block structure, and has simple structure, easy manufacture and good stability.

Furthermore, because the movable frame installation unit also comprises a plurality of guide supporting roller pieces, the fixed frame is provided with a guide supporting line which is connected with the guide supporting roller pieces, and the guide supporting roller pieces are respectively installed on the guide supporting line, so that the stability of the movable frame and the horizontal movement of the door body is further improved.

In addition, because the mobile driving unit adopts a screw nut structure, the structure is simple, the manufacture is easy, and the cost is low.

In addition, because the mobile driving unit also has a supporting bearing part which is fixedly arranged on the fixed frame and is connected with the other end part of the screw rod, the stability of the horizontal movement of the mobile frame and the door body is further ensured.

In addition, because the door plant is equipped with the sealing washer towards the side of business turn over material mouthful, has further improved the sealed effect of the door body.

< modification example I >

The present modification is a further modification of the embodiment, and the same components as those in the embodiment are given the same reference numerals and the same description is omitted.

Compared with the embodiment, the first modification differs from the embodiment in that: the pulley unit also comprises a pulley mounting component which is used for movably mounting the pulley component on the placing frame main body.

FIG. 9 is a schematic perspective view of a shelf unit according to a first modification of the present invention; fig. 10 is a perspective view of a pulley assembly and a pulley mounting assembly according to a modification of the present invention.

As shown in fig. 9 and 10, in the first modification, the pulley unit 43A includes three pulley assemblies 431 and a pulley attachment assembly 432.

The pulley attachment unit 432 includes an intermediate attachment plate 432a, two side attachment plates 432b, an intermediate turning lever 432c, two side turning levers 432d, and two support guide members 432 e.

The middle mounting plate 432a and the two side mounting plates 432b correspond to the three pulley assemblies 431, respectively.

The intermediate mounting plate 432a is fixedly disposed at the center of the corresponding shelf main body 311.

The two side mounting plates 432b are located at both sides of the middle mounting plate 432a and are fixedly disposed at the front and rear ends of the corresponding shelf main body 311. The side mounting plate 432b is provided with an arc-shaped guide bar hole 432f extending in the width direction of the rack main body 311.

The intermediate rotating rod 432c is rotatably mounted on the intermediate mounting plate 432a by a bearing 432g, and a pulley assembly 431 is fixedly mounted at an intermediate position on the intermediate rotating rod 432 c.

One end portions of the two side rotating levers 432d are rotatably connected to the two end portions of the intermediate rotating lever 432c, respectively, and the other end portions of the two side rotating levers 432d are movably attached to the corresponding side attachment plates 432b through the receiving guide members 432e as free end portions, respectively. The remaining two pulley assemblies 431 are fixedly mounted on the free end portions of the two side rotating rods 432d, respectively. In the first modification, a return spring 432h is further fitted around the outside of the connecting portion between the side rotating lever 432d and the intermediate rotating lever 432c, and both ends of the return spring 432h are respectively in contact with the intermediate rotating lever 432c and the corresponding side rotating lever 432d, so that the side rotating lever 432d can be automatically returned after rotating with respect to the intermediate rotating lever 432 c.

The two holder guide members 432e are respectively located at the free end portions of the two side rotating levers 432d, and each of the attachment guide members 432e has a guide portion 432i, and a stopper roller 432j and a holder gear 432k attached to the guide portion 432 i. The upper end of the guide part 432i is fixedly connected with the side rotating rod 432d, and the lower end is movably arranged in the arc-shaped guide strip hole 432 f; the limiting rollers 432j and the holding rollers 432k are respectively located above and below the side mounting plates 432 b.

In the first modification, the middle rotating rod of the pulley mounting assembly is rotatably mounted on the placement frame main body, the two side rotating rods are rotatably connected with the middle rotating rod, and the free end part of each side rotating rod is provided with a bearing guide part with a roller guide hole structure, so that the material basket can smoothly and stably pass through the bent part of the guide rail, and the stability of the material basket in conveying is further ensured.

< modification example two >

In the second modification, the same components as those in the first embodiment are denoted by the same reference numerals, and the same description thereof is omitted.

The second modification example differs from the example in that: the top suspension type conveying part of the placing rack is changed into a bottom supporting type conveying structure of the placing rack.

FIG. 11 is a schematic perspective view of a second modified example of the rack unit according to the present invention; fig. 12 is a perspective view schematically showing a pulley assembly according to a second modification of the present invention.

As shown in fig. 11 and 12, in the second modification, two pairs of pulley assemblies 60 are provided at the bottom of each rack main body 311. The two pairs of pulley assemblies 60 are respectively located at the front and rear ends of the shelf main body 311, and each pair of pulley assemblies 60 is respectively installed at both sides of the shelf main body 311.

Each pulley assembly 60 includes a roller mount 61, two pairs of idler rollers 62, and two guide rollers 63. The roller seat 61 is fixedly arranged on the placing frame main body 311; two pairs of sliding rollers 62 are respectively positioned at the front side and the rear side of the roller seat 61, each pair of sliding rollers 62 are symmetrically arranged, and the rotating shaft of each sliding roller 62 is transversely arranged; two guide rollers 63 are mounted on the roller base 63 and are spaced apart along the length direction of the rack body 311, and the rotation axis of each guide roller 63 is vertically disposed.

In the second modification, the material basket placing frame adopts a bottom supporting type placing frame conveying structure, and only pulley assemblies are needed to be arranged at the bottom of the placing frame main body, so that the structure is simple, the manufacturing is easy, and the cost is low. In addition, loose pulley assembly has guide roller, avoids the charging basket to place the frame and the inside wall of box and bumps, further provides reliability and the security that the charging basket place the frame and remove in the box.

The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.

For example, in the above embodiment, the door is horizontally movable along the width direction of the cabinet. However, in the present invention, the door may be vertically movable along the height direction of the housing, in which case, the first fixing beam and the second fixing beam of the door fixing frame are respectively fixedly connected to the two side portions of the housing, the third fixing beam is located above the housing, and the movable portion can drive the door body to vertically move along the height direction of the housing with respect to the material inlet/outlet. The vertical lifting type box door is adopted, so that the occupied area can be reduced, and the space can be fully utilized.

For another example, in the above embodiment, the movement driving unit in the box door adopts a screw nut structure. However, in the present invention, the moving drive unit also employs a power cylinder, in which case a cylinder body of the power cylinder is fixedly provided on a fixed frame, a piston rod is arranged in a moving direction of the door body, and one end of the piston rod is fixedly connected to the moving frame.

For another example, in the above embodiment, the housing is provided with the inlet/outlet port only at one end. However, in the present invention, the two ends of the box body may be respectively provided with the material inlet and the material outlet, and one material inlet and the material outlet is used as the inlet of the material basket placing rack, and the other material inlet and the material outlet is used as the outlet of the material basket placing rack, so that the time interval of material inlet and outlet can be shortened, and the processing efficiency can be further improved. In this case, two doors and corresponding two outside guide rails need to be provided.