A fully automatic high-temperature static tunnel furnace and high-temperature static process

Abstract

The present invention discloses a fully automatic high-temperature static tunnel furnace, which includes: a plurality of furnace bodies, the plurality of furnace bodies are sequentially connected along the conveying direction of the material cart, and the front and rear ends of the plurality of furnace bodies are respectively provided with a loading end door opening mechanism and a unloading end door opening mechanism; a conveying device, the conveying device is arranged throughout the plurality of furnace bodies, and the conveying device is used to drive the material cart to be conveyed sequentially in the plurality of furnace bodies; a loading device, the loading device is arranged at the front side of the loading end door opening mechanism, the loading device is used to drive the material cart to rise to a position flush with the conveying device, and translate the material cart to the conveying device; a unloading device, the unloading device is arranged at the rear side of the unloading end door opening mechanism, the unloading device is used to move the material cart out of the conveying device, and drive the material cart down to the unloading position. The present invention has the characteristics of balanced temperature of a plurality of furnace bodies, energy saving, labor cost saving, and improved production efficiency.

Description

Technical Field

[0001] The invention relates to a tunnel furnace, in particular to a full-automatic high-temperature static tunnel furnace and a high-temperature static process. Background Art

[0002] In the prior art, the general battery manufacturing process has about 18 process flows, and the traditional high-temperature static furnace is located in the process chain after the vacuum injection and secondary sealing process and before the formation process. The purpose of high-temperature static is: in order to ensure that the electrolyte completely infiltrates the electrode after the injection and sealing, and to form a better SEI film, it is generally necessary to perform high-temperature static for 24 hours. The existing tunnel furnace generally includes 5 independent processing rooms, one processing room is equipped with 2 material carts, and a total of 10 carts are processed simultaneously to produce a batch in 24 hours, with a production capacity of 24 hours / 10 carts of goods, but this tunnel furnace needs to heat up each furnace body separately, and its energy consumption is high, the floor space is large, and the production efficiency is low. In addition, each furnace body requires staff to push and pull the material cart in and out, which not only has high labor costs, but also has poor automation performance. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a fully automatic high-temperature static tunnel furnace and a high-temperature static process which can balance the temperatures of multiple furnace bodies, save energy and labor costs, and improve production efficiency in view of the shortcomings of the prior art.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions.

[0005] A fully automatic high-temperature static tunnel furnace, comprising: a plurality of furnace bodies, the plurality of furnace bodies are connected in sequence along the conveying direction of a material cart, and the front and rear ends of the plurality of furnace bodies are respectively provided with a loading end door opening mechanism and a unloading end door opening mechanism; a conveying device, the conveying device is arranged throughout the plurality of furnace bodies, and the conveying device is used to drive the material cart to be conveyed in sequence in the plurality of furnace bodies; a loading device, the loading device is arranged at the front side of the loading end door opening mechanism, the loading device is used to drive the material cart to rise to a position flush with the conveying device, and translate the material cart to the conveying device; a unloading device, the unloading device is arranged at the rear side of the unloading end door opening mechanism, the unloading device is used to move the material cart out of the conveying device, and drive the material cart down to the unloading position.

[0006] Preferably, the furnace body is formed by enclosing a plurality of rock wool boards, and an observation window is provided on the rock wool board at the side.

[0007] Preferably, an air conveying and heating device is provided on the outer side of the furnace body, and hot air is conveyed into the furnace body by means of the air conveying and heating device.

[0008] Preferably, the air transport and heating device includes a fan, the inlet of the fan is connected to the top of the furnace body through an air inlet channel, the outlet of the fan is connected to an air outlet channel, the air outlet channel is connected to a heating chamber, an electric heater for heating the airflow is provided in the heating chamber, the outlet of the heating chamber is connected to the bottom of the furnace body, and the fan circulates and heats the air in the furnace body when it is running.

[0009] Preferably, the loading end door opening mechanism includes an upper door body slide rail and a lower door body slide rail, two door bodies are arranged between the upper door body slide rail and the lower door body slide rail, and the upper and lower ends of the door bodies are respectively slidably connected with the upper door body slide rail and the lower door body slide rail, and a door opening and closing motor and a door opening and closing driven wheel are fixed on the top of the upper door body slide rail, and the driving wheel of the door opening and closing motor and the door opening and closing driven wheel are connected by a belt, and the belts on both sides of the door opening and closing driven wheel are respectively fixedly connected with the two door bodies, and when the door opening and closing motor runs in the forward or reverse direction, the two door bodies are driven to move away from or approach each other by the belt, thereby completing the door opening or closing action.

[0010] Preferably, the two door bodies are connected to the belts on both sides of the switch door driven wheel through two door body traction plates respectively.

[0011] Preferably, two door limit switches are fixed on the upper door slide rail, and the two door limit switches are arranged on both sides of a door traction plate. When the two doors are opened, the door traction plate triggers one of the two door limit switches, and when the two doors are closed, the door traction plate triggers the other of the two door limit switches.

[0012] Preferably, a driven wheel adjustment frame is fixed on the upper door body slide rail, and the driven wheel adjustment frame is provided with a driven wheel adjustment slider and a driven wheel adjustment screw, the driven wheel adjustment screw is threadedly connected to the driven wheel adjustment frame, the driven wheel adjustment slider is slidably connected to the driven wheel adjustment frame, the door opening and closing driven wheel is provided on the driven wheel adjustment slider, the end of the driven wheel adjustment screw is rotatably connected to the driven wheel adjustment slider, and when the driven wheel adjustment screw is screwed, the driven wheel adjustment slider is driven to slide relative to the driven wheel adjustment frame, thereby adjusting the distance between the door opening and closing driven wheel and the door opening and closing motor, and then adjusting the tension of the belt.

[0013] A fully automatic high-temperature static process, the process is implemented based on a tunnel furnace, the tunnel furnace includes multiple furnace bodies, a conveying device, a loading device and a unloading device, the multiple furnace bodies are sequentially connected along the conveying direction of the material cart, the front and rear ends of the multiple furnace bodies are respectively provided with a loading end door opening mechanism and a unloading end door opening mechanism, the conveying device is arranged through the multiple furnace bodies, the loading device is arranged at the front side of the loading end door opening mechanism, and the unloading device is arranged at the rear side of the unloading end door opening mechanism, the process includes the following steps: step S1, moving the material cart to the At the loading device; step S2, the door opening mechanism at the loading end performs the door opening action; step S3, the loading device drives the material cart to rise to a position flush with the conveying device, and translates the material cart to the conveying device; step S4, the conveying device drives the material cart to be conveyed in multiple furnace bodies in sequence to perform a high-temperature static process; step S5, the door opening mechanism at the unloading end performs the door opening action; step S6, the unloading device moves the material cart out of the conveying device, and drives the material cart down to the unloading position.

[0014] Preferably, the conveying device is provided with 13 workstations for placing the material carts, and the conveying device takes 37 minutes to drive the material cart to move one workstation.

[0015] In the fully automatic high-temperature static tunnel furnace disclosed in the present invention, on the loading side, the material cart is first moved to the loading device, waiting for the loading end door opening mechanism to perform the door opening action, and then the loading device drives the material cart to rise to a position flush with the conveying device, and translates the material cart to the conveying device. During the conveying process, the conveying device drives the material cart to be sequentially conveyed in multiple furnace bodies to perform a high-temperature static process. On the unloading side, the unloading end door opening mechanism performs the door opening action, and the unloading device moves the material cart out of the conveying device and drives the material cart down to the unloading position. Compared with the prior art, the present invention transmits the material cart in multiple furnace bodies in sequence, without the need to heat each furnace body separately, which not only helps to save energy consumption, but also makes the temperature in multiple furnace bodies more balanced. At the same time, the loading and unloading and translation pushing processes of the present invention are all automatically completed, which not only saves labor costs, but also improves production efficiency, and better realizes fully automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structure diagram of the tunnel furnace;

[0017] Figure 2 This is the internal structure diagram of the tunnel furnace;

[0018] Figure 3 It is a partial structural diagram of the furnace body;

[0019] Figure 4 It is a structural schematic diagram of the air-conveying heating device;

[0020] Figure 5 It is a three-dimensional diagram of the wind-transporting heating device;

[0021] Figure 6 This is a three-dimensional diagram of the door opening mechanism at the loading end;

[0022] Figure 7 This is a partial structural diagram of the door opening mechanism at the loading end;

[0023] Figure 8 This is a partial structural diagram of the door opening and closing motor;

[0024] Fig. 9 It is a partial structural diagram of the driven wheel part of the opening and closing door;

[0025] Fig.10 is a three-dimensional diagram of a feeding device;

[0026] Fig.11 Internal structure of the feeding device Figure 1 ;

[0027] Fig.12 Internal structure of the feeding device Figure 2 ;

[0028] Fig.13 Internal structure of the feeding device Figure 3 ;

[0029] Fig.14 It is the structural diagram of the push-pull mechanism;

[0030] Fig.15 This is the structural diagram of the anti-degassing cylinder;

[0031] Fig.16 It is a structural diagram of the docking plug and the positioning sleeve;

[0032] Fig.17 It is a structural diagram of the stage trigger switch and the stage;

[0033] Fig.18 is a structural diagram of a transmission device;

[0034] Fig.19 for Fig.18 A magnified view of part A;

[0035] Fig. 20 It is a schematic diagram of the conveying process of the conveying device;

[0036] Fig.21 It is the local structure diagram of the chain;

[0037] Fig. 22It is the structural diagram of the transmission frame and the driven shaft;

[0038] Fig.23 This is a structural diagram of the chain tensioning and adjusting bracket;

[0039] Fig.24 It is the structural diagram of the conveying device and the door opening mechanism at the unloading end;

[0040] Fig.25 for Fig.24 Enlarged view of part B. DETAILED DESCRIPTION

[0041] The present invention is described in more detail below with reference to the accompanying drawings and embodiments.

[0042] Embodiment 1

[0043] This embodiment proposes a fully automatic high temperature static tunnel furnace, see Figures 1 to 9 , which include:

[0044] A plurality of furnace bodies 1 are connected in sequence along the conveying direction of the material cart 100, and a loading end door opening mechanism 11 and a unloading end door opening mechanism 12 are respectively provided at the front and rear ends of the plurality of furnace bodies 1;

[0045] A conveying device 2, wherein the conveying device 2 is disposed throughout the plurality of furnace bodies 1, and the conveying device 2 is used to drive the material cart 100 to be conveyed in the plurality of furnace bodies 1 in sequence;

[0046] A feeding device 3, the feeding device 3 is arranged at the front side of the feeding end door opening mechanism 11, the feeding device 3 is used to drive the material cart 100 to rise to a position flush with the conveying device 2, and translate the material cart 100 to the conveying device 2;

[0047] The unloading device 4 is arranged at the rear side of the unloading end door opening mechanism 12, and is used to move the material cart 100 out of the conveying device 2 and drive the material cart 100 to descend to the unloading position.

[0048] During the operation of the above-mentioned tunnel furnace, on the loading side, the material trolley 100 is first moved to the loading device 3, waiting for the loading end door opening mechanism 11 to perform the door opening action, and then the loading device 3 drives the material trolley 100 to rise to a position flush with the conveying device 2, and translates the material trolley 100 to the conveying device 2. During the conveying process, the conveying device 2 drives the material trolley 100 to be conveyed in multiple furnace bodies 1 in sequence, and performs a high-temperature static process. On the unloading side, the unloading end door opening mechanism 12 performs the door opening action, and the unloading device 4 moves the material trolley 100 out of the conveying device 2, and drives the material trolley 100 down to the unloading position. Compared with the prior art, the present invention transfers the material cart 100 in multiple furnace bodies 1 in sequence, without the need to heat each furnace body separately, which not only helps to save energy consumption, but also makes the temperature in the multiple furnace bodies 1 more balanced. At the same time, the loading and unloading and translation pushing processes of the present invention are all completed automatically, which not only saves labor costs, but also improves production efficiency, thereby better realizing fully automated production.

[0049] Regarding the specific structure of the furnace body 1 , in this embodiment, the furnace body 1 is surrounded by a plurality of rock wool boards 13 , and an observation window 130 is provided on the rock wool board 13 located at the side.

[0050] The present embodiment preferably adopts hot air circulation to realize heating. Specifically, an air conveying and heating device 14 is provided on the outer side of the furnace body 1 , and hot air is conveyed into the furnace body 1 by the air conveying and heating device 14 .

[0051] As a preferred embodiment, the air conveying and heating device 14 includes a fan 140, the inlet of which is connected to the top of the furnace body 1 through an air inlet channel 141, the outlet of which is connected to an air outlet channel 142, the air outlet channel 142 is connected to a heating chamber 143, the heating chamber 143 is provided with an electric heater 144 for heating the airflow, the outlet of the heating chamber 143 is connected to the bottom of the furnace body 1, and the fan 140 circulates and heats the air in the furnace body 1 when it is running. In the above structure, under the combined action of the circulating airflow and the electric heater, the temperature in the furnace body 1 can be quickly raised to the target high temperature state. At the same time, this embodiment adopts the bottom side air inlet and top side air outlet in the furnace body 1. This design is more in line with the principle of hot air rising naturally, and has a better heating effect.

[0052] In order to realize automatic opening and closing of the furnace door, in this embodiment, the loading end door opening mechanism 11 includes an upper door body slide rail 110 and a lower door body slide rail 111, and two door bodies 112 are arranged between the upper door body slide rail 110 and the lower door body slide rail 111, and the upper and lower ends of the door body 112 are respectively slidably connected with the upper door body slide rail 110 and the lower door body slide rail 111, and the top of the upper door body slide rail 110 is fixed with a door opening and closing motor 113 and a door opening and closing driven wheel 114, and the door opening and closing motor 113 and the door opening and closing driven wheel 114 are fixed with the upper door body slide rail 110. The driving wheel of the motor 113 and the door opening and closing driven wheel 114 are connected by a belt 115. The belts 115 located on both sides of the door opening and closing driven wheel 114 are respectively fixedly connected to the two door bodies 112. When the door opening and closing motor 113 runs forward or reverse, the two door bodies 112 are driven to move away from or approach each other through the belt 115, thereby completing the door opening or closing action. The structure of the door opening mechanism 12 at the unloading end is the same as that of the door opening mechanism 11 at the loading end.

[0053] In order to drive the door bodies 112 to move, in this embodiment, the two door bodies 112 are connected to the belts 115 on both sides of the door opening and closing driven wheels 114 through two door body traction plates 116 respectively.

[0054] In order to play a limiting role in both the closed position and the open position, in this embodiment, two door limit switches 117 are fixed on the upper door slide rail 110, and the two door limit switches 117 are arranged on both sides of a door traction plate 116. When the two doors 112 are opened, the door traction plate 116 triggers one of the two door limit switches 117. When the two doors 112 are closed, the door traction plate 116 triggers the other of the two door limit switches 117.

[0055] In order to improve the reliability of the transmission process, the present embodiment has a belt tensioning adjustment structure, specifically, a driven wheel adjustment frame 118 is fixed on the upper door body slide rail 110, and a driven wheel adjustment slider 119 and a driven wheel adjustment screw 120 are provided on the driven wheel adjustment frame 118, the driven wheel adjustment screw 120 is threadedly connected to the driven wheel adjustment frame 118, the driven wheel adjustment slider 119 is slidably connected to the driven wheel adjustment frame 118, the door opening and closing driven wheel 114 is provided on the driven wheel adjustment slider 119, and the end of the driven wheel adjustment screw 120 is rotatably connected to the driven wheel adjustment slider 119, when the driven wheel adjustment screw 120 is screwed, the driven wheel adjustment slider 119 is driven to slide relative to the driven wheel adjustment frame 118, thereby adjusting the distance between the door opening and closing driven wheel 114 and the door opening and closing motor 113, and then adjusting the tension of the belt 115.

[0056] On the basis of the above-mentioned tunnel furnace, this embodiment also relates to a fully automatic high-temperature static process, which is implemented based on a tunnel furnace. The tunnel furnace includes multiple furnace bodies 1, a conveying device 2, a loading device 3 and a unloading device 4. The multiple furnace bodies 1 are sequentially connected along the conveying direction of the material cart 100. The front and rear ends of the multiple furnace bodies 1 are respectively provided with a loading end door opening mechanism 11 and a unloading end door opening mechanism 12. The conveying device 2 is arranged throughout the multiple furnace bodies 1, the loading device 3 is arranged at the front side of the loading end door opening mechanism 11, and the unloading device 4 is arranged at the rear side of the unloading end door opening mechanism 12. The process includes the following steps:

[0057] Step S1, moving the material cart 100 to the loading device 3;

[0058] Step S2, the door opening mechanism 11 at the loading end performs a door opening action;

[0059] Step S3, the loading device 3 drives the material cart 100 to rise to a position flush with the conveying device 2, and translates the material cart 100 to the conveying device 2;

[0060] Step S4, the conveying device 2 drives the material cart 100 to be conveyed in the multiple furnace bodies 1 in sequence to perform a high-temperature static process;

[0061] Step S5, the unloading end door opening mechanism 12 performs a door opening action;

[0062] In step S6, the unloading device 4 moves the material cart 100 out from the conveying device 2 and drives the material cart 100 down to the unloading position.

[0063] In the above process, the conveying device 2 is provided with 13 workstations for placing the material cart 100, and the time taken by the conveying device 2 to drive the material cart 100 to move one workstation is 37 minutes.

[0064] Based on the above process, the fully automatic high-temperature static tunnel furnace of this embodiment can continuously process 13 material carts like the traditional high-temperature static furnace at the same time, and send out a material cart with a working cycle of 37 minutes. The cycle of 13 workstations multiplied by 37 minutes is equal to 481 minutes, and then divided by 60 minutes / hour is equal to 8 / hour. In other words, the fully automatic high-temperature static tunnel furnace only needs 8 hours to complete the static process of a material cart. According to this calculation, a material cart can be continuously produced in 37 minutes. The formula for calculating the 24-hour production capacity is: 60*24=1440÷37=38.9, which is equivalent to a production capacity of 39 vehicles in 24 hours, which is equivalent to 4 times the production capacity of the traditional high-temperature static furnace.

[0065] Embodiment 2

[0066] In practical applications, for tunnel furnaces with multiple furnace bodies connected in series, it is usually necessary to set up a conveying mechanism in the tunnel furnace to drive the material carts to be transported in sequence. However, how to place the material cart weighing 350KG on the conveying mechanism is an urgent problem to be solved in existing tunnel furnace equipment. If auxiliary tools such as forklifts are used for loading and unloading, it is difficult to ensure that its lifting position is flush with the conveying mechanism, so the material cart cannot be smoothly transferred to the conveying mechanism, and thus cannot meet the application requirements.

[0067] In view of the above shortcomings, this embodiment proposes a loading and unloading device for a fully automatic high-temperature static tunnel furnace that can stably load and unload material carts between a conveyor device and the ground, and has high automation performance and saves labor costs. Figure 1 , Figures 10 to 17 As shown, the tunnel furnace includes a furnace body 1 and a conveying device 2 located in the furnace body 1, the loading and unloading device includes a loading device 3 and a unloading device 4, the loading device 3 and the unloading device 4 are respectively arranged at the front and rear ends of the furnace body 1, the loading device 3 includes two mutually parallel slide rails 30 and a pulley 31 located on the two slide rails 30, the pulley 31 is slidably connected to the two slide rails 30, a pulley cylinder 310 is connected between the pulley 31 and the slide rails 30, a lifting mechanism 32 is fixed on the pulley 31, and a loading mechanism 32 is provided on the lifting mechanism 32 The platform 33 has a push-pull mechanism 34 on it. The platform 33 is used to place a material cart 100. The lifting mechanism 32 drives the platform 33 and the material cart 100 to rise and fall between the conveying device 2 and the ground. The pulley cylinder 310 drives the pulley 31 to slide back and forth to dock or separate the platform 33 from the conveying device 2. The push-pull mechanism 34 drives the material cart 100 to translate between the platform 33 and the conveying device 2. The unloading device 4 has the same structure as the loading device 3.

[0068] In the above-mentioned loading and unloading device, in the initial state, the platform 33 is in a state of being lowered to the ground. Taking the loading process as an example, the material cart 100 is first pushed onto the platform 33, and then the lifting mechanism 32 drives the platform 33 and the material cart 100 to rise until the platform 33 is flush with the conveying device 2. After the furnace door is opened, the pulley cylinder 310 drives the pulley 31 to slide until the platform 33 is docked with the conveying device 2, and then the push-pull mechanism 34 pushes the material cart 100 onto the conveying device 2, and the conveying device 2 is used to transport the material cart 100 into the furnace. Finally, the push-pull mechanism 34, the pulley cylinder 310 and the lifting mechanism 32 all return to the initial state, thereby completing the loading. Since the unloading device 4 has the same structure as the loading device 3, the unloading device 4 only needs to perform the above process in reverse to complete automatic unloading. Compared with the prior art, the present invention can smoothly transfer the material cart 100 to the conveying device 2 or unload the material from the conveying device 2, thereby meeting the static requirement. At the same time, the present invention greatly saves labor costs, and has higher automation performance, which better meets application requirements.

[0069] As a preferred embodiment, the lifting mechanism 32 includes a gantry 320, on which a lifting cylinder 321 is provided, a traction frame 322 is provided on the inner side of the gantry 320, the carrier 33 is fixed on the traction frame 322, and the driving end of the lifting cylinder 321 is connected to the traction frame 322.

[0070] In order to realize the push-pull action, in this embodiment, the push-pull mechanism 34 includes a push-pull bracket 340, a push-pull cylinder 341 is provided on the push-pull bracket 340, and a push-pull block 342 is provided on the telescopic rod of the push-pull cylinder 341. The push-pull block 342 abuts against the material cart 100. When the push-pull cylinder 341 moves, it applies a push-pull force to the material cart 100, thereby driving the material cart 100 to translate relative to the carrier 33. When the above mechanism is applied to the loading device 3, a pushing action is performed, and when the above mechanism is applied to the unloading device 4, a pulling action is performed, thereby meeting the push-pull requirements of different positions.

[0071] In order to fix the material cart 100 on the platform 33 during the lifting process, in this embodiment, an anti-slip cylinder 35 is fixed on the gantry 320, and the telescopic axis of the anti-slip cylinder 35 is facing the material cart 100. When the anti-slip cylinder 35 is actuated, the telescopic rod of the anti-slip cylinder 35 is inserted into the material cart 100.

[0072] The present embodiment has an automatic material loading sensing function. Specifically, the present embodiment includes two grating sensors 36 . The two grating sensors 36 are respectively close to the ends of the two slide rails 30 . The grating sensors 36 are used to sense the material cart 100 and generate an electrical signal.

[0073] In order to detect the lifting and lowering position of the platform 33, in the present embodiment, a platform trigger switch 37 is provided between the platform 33 and the furnace body 1, and the contact of the platform trigger switch 37 extends toward the platform 33. When the platform 33 rises or falls, it touches the platform trigger switch 37, so that the platform trigger switch 37 generates an electrical signal.

[0074] As a preferred embodiment, the outer side of the pulley 31 and the outer side of the gantry 320 are both covered with a sheet metal cover 38 .

[0075] In order to realize intelligent control, in this embodiment, an MES host 380 is fixed on the sheet metal sealing plate 38, and the grating sensor 36 and the stage trigger switch 37 are respectively electrically connected to the MES host 380. At the same time, the above-mentioned cylinders are also centrally controlled by the MES host 380.

[0076] When loading materials in this embodiment, it is necessary to scan and identify the material information on the material cart 100. The specific implementation process is: an MES barcode scanner 381 is fixed on the sheet metal cover 38, the MES barcode scanner 381 is facing the graphic code label on the material cart 100, and the MES barcode scanner 381 is electrically connected to the MES host 380.

[0077] In order to ensure that the carrier 33 is accurately docked with the conveying device 2, in this embodiment, two positioning sleeves 330 are fixed at the edge of the carrier 33, and the conveying device 2 includes two docking plugs 331, and the docking plugs 331 correspond one-to-one to the positioning sleeves 330. When the pulley cylinder 310 drives the pulley 31 to slide, the carrier 33 is docked with the conveying device 2, and the docking plugs 331 are inserted in the positioning sleeves 330.

[0078] Embodiment 3

[0079] In actual applications, for a tunnel furnace with multiple furnace bodies connected in series, it is usually necessary to set up a conveying mechanism in the tunnel furnace to drive the material cart to transport in sequence. However, how to drive the material cart weighing 350KG to transport in multiple furnace bodies is a technical problem that needs to be solved urgently in the prior art. The existing conveying methods include a conveyor belt method and a roller method. Among them, due to the high temperature environment inside the furnace body, a conveyor belt cannot be used for conveying. In addition, the roller conveying method has defects such as easy slipping, and it is difficult to drive the material cart to move accurately, and it is difficult to meet application requirements.

[0080] In view of the above technical problems, this embodiment proposes a conveying device for a fully automatic high-temperature static tunnel furnace that can automatically contact and separate with a material cart and prevent the material cart from losing steps or slipping, thereby improving the conveying accuracy. Figure 1 , Figures 18 to 25 As shown, the tunnel furnace includes a furnace body 1, the conveying device 2 is arranged in the furnace body 1, the conveying device 2 includes a conveying frame 20, the conveying frame 20 is provided with a slideway 200 for the material cart 100 to move horizontally, the conveying frame 20 is provided with a chain 21 and a chain driving mechanism 22, the chain 21 surrounds the conveying frame 20, and the chain driving mechanism 22 drives the chain 21 to operate, the chain 21 is provided with a plurality of support plates 210, and the support plates 210 are formed A vertical plate 211 is provided, and a stopper 212 is provided on the vertical plate 211. The vertical plate 211 and the stopper 212 are hingedly connected via a rotating shaft 213. The first end of the stopper 212 tilts backward under the action of a preset potential energy, and the first end of the stopper 212 abuts against the support plate 210, and the second end of the stopper 212 abuts against the material trolley 100. When the chain 21 is running, the material trolley 100 is driven to translate forward along the slide 200 by the stopper 212.

[0081] In the above-mentioned conveying device, when the material cart 100 is translated to the slideway 200, the chain 21 blocks the second end of the stopper 212 against the material cart 100 while running, thereby applying a thrust to the material cart 100, so that the material cart 100 can be translated along the slideway 200. In particular, when the material cart 100 moves to the end of the conveying device 2, the stopper 212 is automatically separated from the material cart 100. Under the cooperation of the stopper 212 and the chain 21, the present invention can drive the material The precise displacement of the trolley 100 effectively avoids the material trolley from losing its step or slipping, thereby greatly improving the transmission accuracy. In addition, the first end of the block 212 tilts backward under the action of a preset potential energy. Therefore, assuming that the chain 21 runs in the opposite direction due to a fault, the block 212 will only tilt forward when it touches the material trolley 100, and will not generate thrust between the material trolley 100, thereby avoiding dangerous situations, greatly improving the stability and reliability of the conveying device, and better meeting application requirements.

[0082] As a preferred embodiment, a crossbeam 23 is provided on both sides of the chain 21, and a "ㄈ"-shaped slide groove 230 is formed on the edge of the crossbeam 23, and the slide grooves 230 of the two crossbeams 23 are opened opposite to each other, and a plurality of rollers 214 are provided on both sides of the chain 21, and the rollers 214 on both sides of the chain 21 are respectively embedded in the two slide grooves 230, and the rollers 214 can roll relative to the slide grooves 230. In practical applications, since the chain 21 has a certain length, in this embodiment, the cooperation of the rollers 214 and the slide grooves 230 can limit the chain 21, so as to prevent the chain 21 from shaking or swinging and affecting the transmission accuracy.

[0083] As a preferred embodiment, rollers 214 are respectively provided on both sides of each chain link of the chain 21 .

[0084] In order to facilitate the installation and fixing of the support plate 210, in this embodiment, two "L"-shaped ears 215 are provided on each chain link of the chain 21, and the two ears 215 are bent in opposite directions, and the ears 215 are used to fix the support plate 210. The advantage of the above structure is that the support plate 210 can be fixed at any position on the chain 21 as needed, thereby matching the size of the material cart 100, and at the same time, only the installation position of the support plate 210 needs to be readjusted to match the material cart 100 of different spans (or lengths).

[0085] In order to provide power for the chain 21, in this embodiment, a driving shaft 24 and a driven shaft 25 are provided on the conveying frame 20, a driving sprocket 240 is provided on the driving shaft 24, a driven sprocket 250 is provided on the driven shaft 25, the chain 21 surrounds the driving sprocket 240 and the driven sprocket 250, and a conveying motor 26 for driving the driving shaft 24 to operate is provided on the conveying frame 20.

[0086] As a preferred embodiment, the present embodiment can also flexibly adjust the tension of the chain 21. Specifically, a chain tensioning adjustment bracket 27 is fixed on the conveying frame 20, and a driven bearing seat 270 is provided on the chain tensioning adjustment bracket 27 and the two are slidably connected. A bearing is provided in the driven bearing seat 270, and the driven shaft 25 passes through the bearing. A driven shaft adjusting screw 271 is provided on the chain tensioning adjustment bracket 27, and the end of the driven shaft adjusting screw 271 is rotatably connected to the driven bearing seat 270. When the driven shaft adjusting screw 271 is screwed, the driven bearing seat 270 is driven to slide along the chain tensioning adjustment bracket 27, and the tension of the chain 21 is adjusted by adjusting the relative position of the driven shaft 25 and the conveying frame 20.

[0087] In order to detect or count the moving position and number of the material cart 100, in this embodiment, a proximity switch 28 is provided on the beam 23, and the sensing end of the proximity switch 28 faces the chain 21. When the support plate 210 approaches the proximity switch 28, the proximity switch 28 outputs an electrical signal.

[0088] In practical applications, the tunnel furnace includes a plurality of furnace bodies 1 connected in sequence, and the front and rear ends of the plurality of furnace bodies 1 are respectively provided with a loading end door opening mechanism 11 and a unloading end door opening mechanism 12, and the driving shaft 24 and the conveying motor 26 are located at one end of the conveying device 2 close to the unloading end door opening mechanism 12. The above preferred structure can play a pulling role on the chain 21, and its force application effect is better.

[0089] Regarding the preset potential energy of the stopper 212, in this embodiment, the first end of the stopper 212 tilts backward under the action of gravity potential energy and resists the support plate 210. However, in other embodiments of the present invention, a torsion spring or a spring may be used to drive the first end of the stopper 212 to tilt backward, that is, a torsion spring or a spring may be used to provide elastic potential energy for the stopper, and these replacement methods should all be included in the protection scope of the present invention.

[0090] Under the condition that the stopper 212 relies on gravitational potential energy, in order to ensure that the first end of the stopper 212 has sufficient weight, in this embodiment, two counterweight blocks 216 are formed at the first end of the stopper 212, and the two counterweight blocks 216 are respectively arranged on both sides of the stopper 212.

[0091] The above-mentioned fully automatic high-temperature static tunnel furnace has the following execution process in its preferred embodiment: when loading materials, the operator only needs to push the material cart into the automatic loading elevator. After the processing is completed, the material cart will automatically slide out of the furnace into the automatic unloading elevator. After the automatic unloading elevator is reset, the operator can easily pull it away. The fully automatic high-temperature static tunnel furnace automatically completes three steps: in the first step, the automatic loading elevator will automatically lift the material cart weighing nearly 350KG to the specified height, and then the furnace door at the feeding end will open automatically, and the automatic loading elevator will push the material cart to the specified position in the furnace, the automatic loading elevator will reset, and the furnace door will close automatically, and the loading step will be automatically completed; the second step is to automatically complete each beat processing action in the furnace; the third step is that when the processing is completed and a beat time arrives, the automatic unloading elevator will first rise to the specified height and wait for the automatic door at the unloading end to open, and then the automatic unloading elevator will dock with the furnace track, and the material cart will automatically slide out of the furnace to the specified position of the automatic unloading elevator, the unloading elevator will reset, and the automatic door at the unloading end of the furnace will close to complete the unloading step.

[0092] Compared with the existing technology, the production capacity of the above-mentioned fully automatic high-temperature static tunnel furnace is 4 times that of the traditional tunnel furnace, the energy consumption can be reduced by 40% compared with the traditional tunnel furnace, and the floor area can be saved by 35 square meters. In addition, the above-mentioned high-temperature static tunnel furnace has higher automation performance, which greatly reduces the workload and labor costs of operators.

[0093] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the technical scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fully automatic high temperature static tunnel furnace, characterized in that: Included are: A plurality of furnace bodies (1), the plurality of furnace bodies (1) being connected in sequence along the conveying direction of the material cart (100), and a loading end door opening mechanism (11) and a unloading end door opening mechanism (12) being respectively provided at the front and rear ends of the plurality of furnace bodies (1); A conveying device (2), the conveying device (2) being arranged throughout the plurality of furnace bodies (1), and the conveying device (2) being used to drive the material cart (100) to be conveyed sequentially in the plurality of furnace bodies (1); A loading device (3), the loading device (3) being arranged at the front side of the loading end door opening mechanism (11), the loading device (3) being used to drive the material trolley (100) to rise to a position flush with the conveying device (2), and to translate the material trolley (100) to the conveying device (2); A material unloading device (4), the material unloading device (4) being arranged at the rear side of the unloading end door opening mechanism (12), the material unloading device (4) being used to move the material trolley (100) out of the conveying device (2) and drive the material trolley (100) down to a material unloading position; The loading end door opening mechanism (11) comprises an upper door body slide rail (110) and a lower door body slide rail (111); two door bodies (112) are arranged between the upper door body slide rail (110) and the lower door body slide rail (111); the upper and lower ends of the door bodies (112) are respectively slidably connected to the upper door body slide rail (110) and the lower door body slide rail (111); a door opening and closing motor (113) and a door opening and closing driven wheel (114) are fixed to the top of the upper door body slide rail (110); The driving wheel and the door opening and closing driven wheel (114) are connected via a belt (115); the belts (115) located on both sides of the door opening and closing driven wheel (114) are respectively fixedly connected to the two door bodies (112); when the door opening and closing motor (113) runs in the forward or reverse direction, the two door bodies (112) are driven to move away from or towards each other via the belt (115), thereby completing the door opening or closing action; the unloading end door opening mechanism (12) has the same structure as the loading end door opening mechanism (11); The two door bodies (112) are respectively connected to belts (115) on both sides of the door opening and closing driven wheel (114) via two door body traction plates (116); A driven wheel adjustment frame (118) is fixed to the upper door body slide rail (110), and a driven wheel adjustment slider (119) and a driven wheel adjustment screw (120) are provided on the driven wheel adjustment frame (118). The driven wheel adjustment screw (120) is threadedly connected to the driven wheel adjustment frame (118), and the driven wheel adjustment slider (119) is slidably connected to the driven wheel adjustment frame (118). The door opening and closing driven wheel (114) is provided on the driven wheel adjustment frame (118). The end of the driven wheel adjusting screw (120) is rotatably connected to the driven wheel adjusting screw (119) on the wheel adjusting slider (119). When the driven wheel adjusting screw (120) is screwed, the driven wheel adjusting slider (119) is driven to slide relative to the driven wheel adjusting frame (118), thereby adjusting the distance between the door opening and closing driven wheel (114) and the door opening and closing motor (113), thereby adjusting the tension of the belt (115).

2. The fully automatic high temperature static tunnel furnace according to claim 1, characterized in that: The furnace body (1) is formed by enclosing a plurality of rock wool boards (13), and an observation window (130) is provided on the rock wool board (13) located at the side.

3. The fully automatic high temperature static tunnel furnace according to claim 1, characterized in that: An air conveying and heating device (14) is provided on the outer side of the furnace body (1), and hot air is conveyed into the furnace body (1) by means of the air conveying and heating device (14).

4. The fully automatic high temperature static tunnel furnace according to claim 3, characterized in that: The air transport and heating device (14) comprises a fan (140), the inlet of the fan (140) is connected to the top of the furnace body (1) through an air inlet channel (141), the outlet of the fan (140) is connected to an air outlet channel (142), the air outlet channel (142) is connected to a heating chamber (143), an electric heater (144) for heating the air flow is provided in the heating chamber (143), the outlet of the heating chamber (143) is connected to the bottom of the furnace body (1), and the fan (140) circulates and heats the air in the furnace body (1) when it is in operation.

5. The fully automatic high temperature static tunnel furnace according to claim 1, characterized in that: Two door limit switches (117) are fixed on the upper door slide rail (110), and the two door limit switches (117) are arranged on both sides of a door traction plate (116). When the two door bodies (112) are opened, the door traction plate (116) triggers one of the two door limit switches (117), and when the two door bodies (112) are closed, the door traction plate (116) triggers the other of the two door limit switches (117).

6. A fully automatic high temperature static process, characterized in that: The process is implemented based on the tunnel furnace described in claim 1, and the process includes the following steps: Step S1, moving the material cart (100) to the loading device (3); Step S2, the loading end door opening mechanism (11) performs a door opening action; Step S3, the loading device (3) drives the material cart (100) to rise to a position flush with the conveying device (2), and translates the material cart (100) to the conveying device (2); Step S4, the conveying device (2) drives the material cart (100) to be conveyed in sequence in the plurality of furnace bodies (1) to perform a high-temperature static process; Step S5, the unloading end door opening mechanism (12) performs a door opening action; Step S6: the unloading device (4) moves the material trolley (100) out of the conveying device (2) and drives the material trolley (100) down to the unloading position.

7. The fully automatic high temperature static process according to claim 6, characterized in that: The conveying device (2) is provided with 13 workstations for placing the material cart (100), and the time taken by the conveying device (2) to drive the material cart (100) to move one workstation is 37 minutes.

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