Material distribution conveying line for dry ice conveying

Abstract

The utility model provides a material distribution conveying line for dry ice conveying. A briquetting machine is arranged at the input end of the material distribution conveying line, and a packaging machine is arranged at the output end of the material distribution conveying line. Or a packaging machine is arranged at the input end of the distributing conveying line, and a boxing device is arranged at the output end; the material distribution conveying line comprises a main conveying belt and a plurality of auxiliary conveying belts. The auxiliary conveying belt comprises feeding conveying belts and discharging conveying belts, and one side of the main conveying belt is communicated with at least one feeding conveying belt and is communicated with at least one discharging conveying belt; a first separation mechanism is arranged at the communication junction of the main conveying belt and the feeding conveying belt and is used for blocking the transportation of the main conveying belt or the communication of the main conveying belt and the feeding conveying belt; and a second separation mechanism is arranged at the communicating junction of the main conveying belt and the discharging conveying belt and is used for blocking the conveying of the main conveying belt or the communication of the main conveying belt and the discharging conveying belt.

Description

Technical Field

[0001] The utility model relates to equipment for a dry ice production line, in particular to a material distribution and transportation line for dry ice transportation. Background Art

[0002] As an efficient refrigeration medium, dry ice has been widely used in fields such as food refrigeration, cold chain transportation, medicine, and fresh-keeping transportation of biological products due to its low temperature, non-toxic, and odorless characteristics. However, there are some risks during the packaging and transportation of dry ice. For example, its volatility may cause an explosion, the high concentration of carbon dioxide gas after sublimation may cause asphyxiation, and its extremely low temperature may cause frostbite. Therefore, during the transportation of dry ice from compression molding to packaging, the storage time of dry ice in the air should be minimized.

[0003] In the current dry ice transportation line, only one transportation route is set between the ice maker and the packaging machine. To ensure the safety of the transportation route and reduce the volatilization of dry ice during transportation, the ice maker needs to make ice according to the efficiency of the packaging machine, resulting in low production efficiency and being unable to meet the needs of large-scale production. Summary of the Utility Model

[0004] The utility model provides a material distribution and transportation line for dry ice transportation, aiming to solve the problem that the existing dry ice production line has a single transportation route and cannot adapt to large-scale production.

[0005] To solve the above technical problems, the utility model provides a material distribution and transportation line for dry ice transportation. A briquetting machine is arranged at the input end of the material distribution and transportation line, and a packaging machine is arranged at the output end of the material distribution and transportation line;

[0006] The material distribution and transportation line includes a main transportation conveyor belt and several auxiliary transportation conveyor belts; the auxiliary transportation conveyor belts include a feeding conveyor belt and a discharging conveyor belt. The feeding conveyor belt is connected to the briquetting machine, and the discharging conveyor belt is connected to the packaging machine;

[0007] At least one feeding conveyor belt is communicatively connected and at least one discharging conveyor belt is communicatively connected on one side of the main transportation conveyor belt;

[0008] A first lane-changing mechanism is arranged at the communicative intersection of the main transportation conveyor belt and the feeding conveyor belt. The first lane-changing mechanism is used to block the transportation of the main transportation conveyor belt or the communication between the main transportation conveyor belt and the feeding conveyor belt;

[0009] A second lane-changing mechanism is arranged at the communicative intersection of the main transportation conveyor belt and the discharging conveyor belt. The second lane-changing mechanism is used to block the transportation of the main transportation conveyor belt or the communication between the main transportation conveyor belt and the discharging conveyor belt.

[0010] The present utility model also provides a material distribution and transportation line for dry ice transportation. A packaging machine is arranged at the input end of the material distribution and transportation line, and a boxing device is arranged at the output end of the material distribution and transportation line;

[0011] The material distribution and transportation line includes a main transportation conveyor belt and several auxiliary transportation conveyor belts; the auxiliary transportation conveyor belts include a feeding conveyor belt and a discharging conveyor belt. The feeding conveyor belt is connected to the packaging machine, and the discharging conveyor belt is connected to the boxing device;

[0012] At least one feeding conveyor belt is communicatively connected and arranged on one side of the main transportation conveyor belt, and at least one discharging conveyor belt is communicatively connected and arranged;

[0013] A first lane-dividing mechanism is arranged at the communicative intersection of the main transportation conveyor belt and the feeding conveyor belt. The first lane-dividing mechanism is used to block the transportation of the main transportation conveyor belt or the communication between the main transportation conveyor belt and the feeding conveyor belt;

[0014] A second lane-dividing mechanism is arranged at the communicative intersection of the main transportation conveyor belt and the discharging conveyor belt. The second lane-dividing mechanism is used to block the transportation of the main transportation conveyor belt or the communication between the main transportation conveyor belt and the discharging conveyor belt.

[0015] In a preferred embodiment, the first lane-dividing mechanism includes an ice-blocking bracket, a lane-dividing baffle, and a driving member. The ice-blocking bracket is fixed on the main transportation conveyor belt, and the driving member is fixed on the ice-blocking bracket;

[0016] The driving end of the driving member is fixed with the lane-dividing baffle. The driving member drives the lane-dividing baffle to move down and place it on the main transportation conveyor belt to form a block.

[0017] In a preferred embodiment, the lane-dividing baffle includes a fixing plate and a baffle. The fixing plate is fixed on the driving member, and the baffle is obliquely fixed on the fixing plate.

[0018] In a preferred embodiment, the second lane-dividing mechanism includes a lane-dividing device and an ice-blocking device; the lane-dividing device is used to form the communication between the main transportation conveyor belt and the discharging conveyor belt;

[0019] The ice-blocking device is used to block the transportation of dry ice on the main transportation conveyor belt.

[0020] In a preferred embodiment, the ice-blocking device includes a cylinder bracket, a cylinder fixed on the cylinder bracket, and an ice-blocking block; the cylinder bracket is fixed on the main transportation conveyor belt;

[0021] The cylinder drives the ice-blocking block to move and place it on the main transportation conveyor belt to form a block.

[0022] In a preferred embodiment, the lane-dividing device includes a lane-dividing bracket, a driving cylinder and lane-dividing plates; two lane-dividing plates are oppositely arranged corresponding to the width of the main transport conveyor belt or the discharge conveyor belt;

[0023] The lane-dividing bracket is fixed on the main transport conveyor belt, the driving cylinder is fixed on the lane-dividing bracket, and the lane-dividing plates are rotatably connected to the lane-dividing bracket;

[0024] The two lane-dividing plates form an ice guiding channel, and the driving cylinder drives the ice guiding channel to rotate and dock with the main transport conveyor belt or the discharge conveyor belt.

[0025] In a preferred embodiment, a connecting block is connected and arranged between the two lane-dividing plates, and the driving end of the driving air rod is connected to the connecting block;

[0026] The lane-dividing plate is rotatably installed on the lane-dividing bracket through a rotating shaft.

[0027] In a preferred embodiment, the second lane-dividing mechanism further includes a lane-dividing detection sensor.

[0028] In a preferred embodiment, a plurality of openings are formed on one side of the main transport conveyor belt, and the openings are used to communicate with the feeding conveyor belt or the discharge conveyor belt.

[0029] Compared with the prior art, the technical solution of the present utility model has the following beneficial effects:

[0030] 1. By arranging the main transport conveyor belt and multiple auxiliary transport conveyor belts, the flexibility of the production line is increased, and the flow direction of materials can be adjusted according to production requirements. The design of this material distribution and transportation line can adapt to different scales of dry ice production requirements. Whether it is small-batch customized production or large-scale batch production, it can ensure efficient and stable operation.

[0031] 2. By arranging the first lane-dividing mechanism and the second lane-dividing mechanism, intelligent control nodes are provided for the production line, and the main transport conveyor belt and other auxiliary transport conveyor belts can be flexibly blocked or connected according to the requirements of the actual production process, avoiding unnecessary accumulation or delay of materials.

[0032] 3. By arranging an intelligent lane-dividing mechanism, the distribution of materials can be effectively controlled, and material waste caused by improper operation or equipment failure can be reduced. Multiple conveyor belts and lane-dividing mechanisms are convenient for daily maintenance and troubleshooting, reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the whole material distribution and transportation line in the preferred embodiment of the present utility model;

[0034] Figure 2It is the lane-dividing diagram of the main transportation conveyor belt and the feeding conveyor belt in the preferred embodiment of the present utility model;

[0035] Figure 3 It is the schematic diagram of the first lane-dividing mechanism in the preferred embodiment of the present utility model;

[0036] Figure 4 It is the lane-dividing diagram of the main transportation conveyor belt and the discharging conveyor belt in the preferred embodiment of the present utility model;

[0037] Figure 5 It is the schematic diagram of the lane-dividing device in the preferred embodiment of the present utility model;

[0038] Figure 6 It is the schematic diagram of the second lane-dividing mechanism in the preferred embodiment of the present utility model;

[0039] Figure 7 It is the schematic diagram of the ice-blocking device in the preferred embodiment of the present utility model.

[0040] Explanation of reference numerals: 1, main transportation conveyor belt; 11, opening; 2, feeding conveyor belt; 3, discharging conveyor belt; 4, first lane-dividing mechanism; 41, ice-blocking bracket; 42, lane-dividing baffle; 43, fixing plate; 44, baffle; 45, driving member; 5, second lane-dividing mechanism; 51, ice-blocking device; 511, cylinder bracket; 512, cylinder; 513, ice-blocking block; 52, lane-dividing device; 521, lane-dividing bracket; 522, driving cylinder; 523, lane-dividing plate; 524, connecting block; 525, rotating shaft; 526, lane-dividing detection sensor bracket. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0042] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0043] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "equipped with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0044] Reference Figures 1 - 7 , this embodiment provides a material distribution transportation line for dry ice transportation, mainly used in the dry ice production line. This material distribution transportation line can be used for the pipeline operation of dry ice transportation and packaging from the briquetting machine to the packaging machine, and can also be used for the pipeline operation of packing dry ice into boxes and packing and transporting from the packaging machine to the boxing device.

[0045] One pipeline is that a briquetting machine is arranged at the input end of this material distribution transportation line, and a packaging machine is arranged at the output end of this material distribution transportation line, providing an automated pipeline for dry ice transportation and packaging. The briquetting machine is a device for extruding solid carbon dioxide (dry ice) into blocks, and the packaging machine is a device for packaging solid carbon dioxide (dry ice). Through the material distribution transportation line, the transportation of dry ice from the briquetting machine to the packaging machine is realized, and the automated pipeline operation of dry ice from production to packaging is achieved.

[0046] Another pipeline is that a packaging machine is arranged at the input end of this material distribution transportation line, and a boxing device is arranged at the output end of this material distribution transportation line, providing an automated pipeline for packing dry ice into boxes. The boxing device is used to pack the packaged dry ice into a dry ice box or a cardboard box.

[0047] Such as Figure 1 , this material distribution transportation line includes a main transportation conveyor belt 1 and several auxiliary transportation conveyor belts. A briquetting machine or a packaging machine is arranged at the input end of the main transportation conveyor belt 1, and a packaging machine or a boxing device is arranged at the output end of the main transportation conveyor belt 1. The main transportation route forms a complete pipeline for dry ice from production to packaging or for dry ice packaging to boxing.

[0048] In order to expand the production scale and improve the production and packaging efficiency of dry ice, several openings 11 are opened on one side of the main transportation conveyor belt 1. These openings 11 are used to dock with the auxiliary transportation conveyor belts, opening multiple auxiliary transportation routes for opening the second, third, fourth... etc. pipelines from production to packaging.

[0049] The plurality of auxiliary conveyor belts include a feeding conveyor belt 2 and a discharging conveyor belt 3. The feeding conveyor belt 2 is used to connect another briquetting machine or packaging machine, and transport the dry ice blocks or packaged dry ice bags produced by the briquetting machine or packaging machine, and merge them into the main conveyor belt 1. The discharging conveyor belt 3 is used to connect another packaging machine or boxing device, and receive the dry ice blocks or packaged dry ice bags conveyed by the main conveyor belt 1, and transport them to the packaging machine for packing or to the boxing device for boxing.

[0050] When the ice production increases, the discharging conveyor belt 3 can be used to share the dry ice quantity on the main conveyor belt 1 for shunt packaging and transportation, avoiding excessive volatilization of dry ice due to its long stay on the main conveyor belt 1. When the briquetting machine or packaging machine breaks down or needs to be re-fed, the feeding conveyor belt 2 can be used to start, produce ice or package a spare briquetting machine or packaging machine, improving production efficiency.

[0051] The feeding conveyor belt 2 and the discharging conveyor belt 3 can be used as standby equipment. According to the length of the main conveyor belt 1 and the scale of production, multiple feeding conveyor belts 2 and multiple discharging conveyor belts 3 can be arranged on one side of the main conveyor belt 1. When the main equipment fails to be repaired or overhauled, it can be used to replace the production line operation, greatly shortening the production time, and can be used for large-scale dry ice production and packaging.

[0052] Such as Figure 2 , the docking structure between the main conveyor belt 1 and the feeding conveyor belt 2 is set such that a first lane-dividing mechanism 4 is provided at the connecting intersection of the main conveyor belt 1 and the feeding conveyor belt 2, and an opening 11 is provided at the connecting intersection of the main conveyor belt 1. The first lane-dividing mechanism 4 is used to block the transportation of the main conveyor belt 1 or the transportation of the feeding conveyor belt 2.

[0053] Such as Figure 3 , specifically, the first lane-dividing mechanism 4 includes a ice-blocking bracket 41, a lane-dividing baffle 42 and a driving member 45. The ice-blocking bracket 41 is fixed on the main conveyor belt 1, the driving member 45 is fixed on the ice-blocking bracket 41, and the lane-dividing baffle 42 is provided at the driving end of the driving member 45. The driving member 45 adopts a telescopic cylinder 512 for driving the lane-dividing baffle 42 to move up and down.

[0054] The lane-dividing baffle 42 includes a fixing plate 43 and a baffle 44. The fixing plate 43 is fixed at the driving end of the driving member 45, the baffle 44 is fixed on the fixing plate 43, and the baffle 44 is inclined. When the main conveyor belt 1 transports dry ice normally, the baffle 44 is located above the main conveyor belt 1 under the drive of the driving member 45.

[0055] When dry ice transportation of the feeding conveyor belt 2 is required, through the drive of the driving member 45, the baffle 44 moves downward and is placed in the conveying channel of the main transportation conveyor belt 1, and is horizontally arranged in the conveying channel of the main transportation conveyor belt 1, blocking the dry ice transportation of the main transportation conveyor belt 1. The baffle 44 is horizontally arranged in the conveying channel of the main transportation conveyor belt 1 at an inclined angle, and the inclined baffle 44 plays a guiding role, which is used to guide the dry ice on the feeding conveyor belt 2 into the main transportation conveyor belt 1 to realize the normal transportation of dry ice.

[0056] As Figure 4 , the docking structure of the main transportation conveyor belt 1 and the discharging conveyor belt 3 is set such that a second lane-dividing mechanism 5 is provided at the connecting intersection of the main transportation conveyor belt 1 and the discharging conveyor belt 3, and an opening 11 is provided at the connecting intersection of the main transportation conveyor belt 1. The second lane-dividing mechanism 5 is used to block the transportation of the main transportation conveyor belt 1 or block the transportation of the discharging conveyor belt 3.

[0057] As Figure 6 , specifically, the second lane-dividing mechanism 5 includes a lane-dividing device 52 and an ice-blocking device 51. The lane-dividing device 52 is used to block the transportation of the main transportation conveyor belt 1 or the discharging conveyor belt 3, and the ice-blocking device 51 is used to block the dry ice transportation on the main transportation conveyor belt 1. The ice-blocking device 51 is used to cooperate with the lane-dividing device 52 to block the dry ice on the main transportation conveyor belt 1, facilitating the lane-dividing work of the lane-dividing device 52. And the second lane-dividing mechanism 5 is also provided with a lane-dividing detection sensor, which cooperates with the lane-dividing device 52 and the ice-blocking device 51. The lane-dividing detection sensor is used to detect whether the lane-dividing device 52 has completed lane-dividing or is in the process of lane-dividing work, so as to control whether the ice-blocking device 51 starts to block the dry ice transportation.

[0058] As Figure 7 , the ice-blocking device 51 includes a cylinder bracket 511, a cylinder 512 and an ice-blocking block 513. The cylinder bracket 511 is fixed on the main transportation conveyor belt 1, the cylinder 512 is fixed on the cylinder bracket 511, and the ice-blocking block 513 is fixed on the driving end of the cylinder 512 and is driven by the cylinder 512 to perform vertical telescopic movement.

[0059] When the lane-dividing detection sensor detects that the lane-dividing device 52 is performing lane-dividing operation, the cylinder 512 drives the ice-blocking block 513 to move downward, and the ice-blocking block 513 extends into the conveying channel of the main transportation conveyor belt 1 to block the dry ice. At this time, the dry ice accumulates at the ice-blocking block 513 and does not continue to be transported on the conveyor belt.

[0060] When the lane-dividing detection sensor detects that the lane-dividing device 52 has completed lane-dividing, the cylinder 512 drives the ice-blocking block 513 to move upward, and the ice-blocking block 513 is moved away from the conveying channel of the main transportation conveyor belt 1, and the dry ice continues to be transported under the action of the conveyor belt.

[0061] As Figure 5 , the lane-dividing device 52 includes a lane-dividing bracket 521, a driving cylinder 522 and lane-dividing plates 523. The lane-dividing bracket 521 is fixed on the main transport conveyor belt 1, and the driving cylinder 522 is fixed on the lane-dividing bracket 521. There are two lane-dividing plates 523, and the two lane-dividing plates 523 are arranged at intervals relative to each other. The two lane-dividing plates 523 are arranged on both sides to form an ice-guiding channel, and the width of the ice-guiding channel is adapted to the width of the transport channel of the main transport conveyor belt 1 or the discharge conveyor belt 3, and the widths of the transport channels of the main transport conveyor belt 1 or the discharge conveyor belt 3 are the same.

[0062] A rotating shaft 525 is arranged on the lane-dividing bracket 521. The two lane-dividing plates 523 are rotatably mounted on the lane-dividing bracket 521 through the rotating shaft 525, and a connecting block 524 is arranged at the upper ends of the two lane-dividing plates 523. The connecting block 524 connects the two lane-dividing plates 523, and the connecting block 524 is connected to the driving end of the driving air rod. The driving air rod drives the connecting block 524 to enable the two lane-dividing plates 523 to rotate. A lane-dividing detection sensor bracket 526 is arranged on the lane-dividing bracket 521 for installing a lane-dividing detection sensor.

[0063] Side plates are arranged on both sides of the main transport conveyor belt 1 and the discharge conveyor belt 3 to form a transport channel. In order to facilitate the rotation and movement of the lane-dividing plates 523, the main transport conveyor belt 1 and the discharge conveyor belt 3 do not have side plates on both sides at their connected intersection, and the lane-dividing plates 523 form side plates. When the lane-dividing plates 523 rotate and dock with the side plates of the main transport conveyor belt 1, the transportation of the main transport conveyor belt 1 is connected. When the lane-dividing plates 523 rotate and dock with the side plates of the discharge conveyor belt 3, the transportation of the discharge conveyor belt 3 is connected.

[0064] When the main transport conveyor belt 1 is transporting dry ice normally, the two lane-dividing plates 523 rotate under the drive of the driving cylinder 522 and dock with the side plates on both sides of the main transport conveyor belt 1 to form a complete transport channel of the main transport conveyor belt 1. When it is necessary to transport dry ice on the discharge conveyor belt 3, the ice-blocking device 51 moves down to block the transportation of dry ice. The two lane-dividing plates 523 rotate under the drive of the driving cylinder 522 and dock with the side plates on both sides of the discharge conveyor belt 3 to form a transport channel connecting the main transport conveyor belt 1 and the discharge conveyor belt 3. The ice-blocking device 51 moves up, and the dry ice is transported normally. The two lane-dividing plates 523 form a diversion for the dry ice so that it flows into the discharge conveyor belt 3 for transportation.

[0065] In this embodiment, through the design of the main conveyor belt 1 and multiple auxiliary conveyor belts, including the feeding conveyor belt 2 and the discharging conveyor belt 3, the flexibility of the production line is increased, and the flow direction of materials can be adjusted according to production requirements. The setting of the first lane-dividing mechanism 4 and the second lane-dividing mechanism 5 provides intelligent control nodes for the production line, and can flexibly block or connect the main conveyor belt 1 and other conveyor belts according to the requirements of the actual production process, avoiding unnecessary accumulation or delay of materials. Moreover, the lane-dividing mechanism can effectively control the distribution of materials and reduce material waste caused by improper operation or equipment failure.

[0066] The above are only the preferred specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention who makes non-substantive modifications to the present invention using this concept shall fall within the scope of infringement of the protection of the present invention.

Claims

1. A feeding and transporting line for dry ice transportation, characterized in that: A briquetting machine is set at the input end of the material distribution and transportation line, and a packaging machine is set at the output end of the material distribution and transportation line; The material distribution and transportation line includes a main transportation conveyor belt and several auxiliary transportation conveyor belts; the auxiliary transportation conveyor belts include a feeding conveyor belt and a discharging conveyor belt, the feeding conveyor belt is connected to the briquetting machine, and the discharging conveyor belt is connected to the packaging machine; At least one feeding conveyor belt is connected and set on one side of the main transportation conveyor belt, and at least one discharging conveyor belt is connected and set; A first lane-changing mechanism is set at the connection and intersection of the main transportation conveyor belt and the feeding conveyor belt, and the first lane-changing mechanism is used to block the transportation of the main transportation conveyor belt or the connection between the main transportation conveyor belt and the feeding conveyor belt; A second lane-changing mechanism is set at the connection and intersection of the main transportation conveyor belt and the discharging conveyor belt, and the second lane-changing mechanism is used to block the transportation of the main transportation conveyor belt or the connection between the main transportation conveyor belt and the discharging conveyor belt.

2. A material distribution and transportation line for dry ice transportation, characterized in that: A packaging machine is set at the input end of the material distribution and transportation line, and a boxing device is set at the output end of the material distribution and transportation line; The material distribution and transportation line includes a main transportation conveyor belt and several auxiliary transportation conveyor belts; the auxiliary transportation conveyor belts include a feeding conveyor belt and a discharging conveyor belt, the feeding conveyor belt is connected to the packaging machine, and the discharging conveyor belt is connected to the boxing device; At least one feeding conveyor belt is connected and set on one side of the main transportation conveyor belt, and at least one discharging conveyor belt is connected and set; A first lane-changing mechanism is set at the connection and intersection of the main transportation conveyor belt and the feeding conveyor belt, and the first lane-changing mechanism is used to block the transportation of the main transportation conveyor belt or the connection between the main transportation conveyor belt and the feeding conveyor belt; A second lane-changing mechanism is set at the connection and intersection of the main transportation conveyor belt and the discharging conveyor belt, and the second lane-changing mechanism is used to block the transportation of the main transportation conveyor belt or the connection between the main transportation conveyor belt and the discharging conveyor belt.

3. The feeding and transporting line for dry ice transportation according to claim 1 or 2, characterized in that: The first lane-changing mechanism includes an ice-blocking bracket, a lane-changing baffle and a driving part, the ice-blocking bracket is fixed on the main transportation conveyor belt, and the driving part is fixed on the ice-blocking bracket; The driving end of the driving part is fixed with the lane-changing baffle, and the driving part drives the lane-changing baffle to move down and place it on the main transportation conveyor belt to form a blockage.

4. A material distribution and transportation line for dry ice transportation according to claim 3, characterized in that: The lane-changing baffle includes a fixing plate and a baffle, the fixing plate is fixed on the driving part, and the baffle is obliquely fixed on the fixing plate.

5. A material distribution and transportation line for dry ice transportation according to claim 1 or 2, characterized in that: The second lane-changing mechanism includes a lane-changing device and an ice-blocking device; the lane-changing device is used to form the connection of the main transportation conveyor belt or the discharging conveyor belt; The ice-blocking device is used to block the transportation of dry ice on the main transportation conveyor belt.

6. The material distribution and transportation line for dry ice transportation according to claim 5, wherein: The ice-blocking device includes a cylinder bracket, a cylinder fixed on the cylinder bracket and an ice-blocking block; the cylinder bracket is fixed on the main transportation conveyor belt; The cylinder drives the ice-blocking block to move and place it on the main transportation conveyor belt to form a blockage.

7. A material distribution and transportation line for dry ice transportation according to claim 5, characterized in that: The lane-changing device includes a lane-changing bracket, a driving cylinder and a lane-changing plate; two lane-changing plates are arranged oppositely corresponding to the width of the main transportation conveyor belt or the discharging conveyor belt; The lane-changing bracket is fixed on the main transportation conveyor belt, the driving cylinder is fixed on the lane-changing bracket, and the lane-changing plate is rotatably connected to the lane-changing bracket; The two lane-dividing plates form an ice guiding channel, and the driving cylinder drives the ice guiding channel to rotate and dock with the main transportation conveyor belt or the discharging conveyor belt.

8. A material distribution and transportation line for dry ice transportation according to claim 7, characterized in that: A connecting block is connected and arranged between the two lane-dividing plates, and the driving end of the driving cylinder is connected to the connecting block; The lane-dividing plate is rotatably installed on the lane-dividing bracket through a rotating shaft.

9. A material distribution and transportation line for dry ice transportation according to claim 5, characterized in that: The second lane-dividing mechanism further includes a lane-dividing detection sensor.

10. A material distribution and transportation line for dry ice transportation according to claim 1 or 2, characterized in that: A plurality of openings are formed on one side of the main transportation conveyor belt, and the openings are used to communicate with the feeding conveyor belt or the discharging conveyor belt.

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