Emergency emptying system for pre-painting treatment electrophoresis line based on double pendulum rod conveying structure

Abstract

This invention discloses an emergency venting system for a pre-coating electrophoresis line based on a dual-swing-arm conveyor structure. The system includes a pre-treatment line, an electrophoresis line, an electrophoresis drying chamber, a first vehicle body storage area, and a second vehicle body storage area. A first conveyor line is provided between the pre-treatment line and the electrophoresis line to transfer vehicles from the pre-treatment line to the electrophoresis line. A second conveyor line is provided between the electrophoresis line and the electrophoresis drying chamber to transfer vehicles from the electrophoresis line to the electrophoresis drying chamber. The first vehicle body storage area has a first storage line that transfers vehicles in a first-in, first-out (FIFO) order, with its input and output ends connected to the first conveyor line. The second vehicle body storage area has a second storage line that transfers vehicles in a FIFO order, with its input and output ends connected to the second conveyor line. Using this invention, no additional space is required, effectively solving the problem of batch scrapping of vehicles due to tank overflow caused by congestion in the dual-swing-arm conveyor structure of the pre-coating electrophoresis line.

Description

Technical Field

[0001] This invention belongs to the field of electrophoresis line conveying technology, specifically relating to an emergency venting system for pre-coating electrophoresis lines based on a double-swing rod conveying structure. Background Technology

[0002] Currently, painting is required during automobile production. Painting refers to covering metal and non-metal surfaces with protective or decorative layers. However, the pretreatment electrophoresis line in the existing painting workshop adopts a continuous production method, that is, the car body is brought into the various process tanks of the pretreatment electrophoresis line through a continuously running conveyor chain for surface treatment.

[0003] The existing pretreatment and electrophoresis lines each consist of two independent conveyor systems, typically a double-swing-arm conveyor structure. Each car body is mounted on two independent swing arms before passing through the pretreatment and electrophoresis lines. In the double-swing-arm conveyor structure, the swing arms are vertical in the pretreatment and electrophoresis lines; when returning empty, they lie flat. The return sections are located below the tanks in both the pretreatment and electrophoresis lines, with only about 50cm of space in height, making it impossible to mount car bodies under the tanks. When equipment failure in the next process causes the conveyor system of the pretreatment or electrophoresis line to stop operating, emergency emptying via the swing arms is not possible, leaving the car bodies in the process tanks continuously submerged. However, the processing time for the car bodies in the process tanks of the pretreatment and electrophoresis lines is strictly limited, generally not exceeding 3 minutes. Exceeding this time will cause a series of quality problems such as rust, rough phosphating film, and electrophoretic paint back-dissolving, resulting in a large number of car bodies being scrapped, causing significant losses. Summary of the Invention

[0004] The problem to be solved by this invention is to provide an emergency venting system for pre-coating electrophoresis lines based on a double-swing-arm conveyor structure. This system does not require additional site space and can effectively solve the problem of batch scrapping of pre-coating electrophoresis lines due to the car body being soaked in the tank caused by blockage of the double-swing-arm conveyor structure.

[0005] To address the aforementioned technical problems, this invention provides an emergency venting system for a pre-coating electrophoresis line based on a dual-swing rod conveyor structure. The system includes a pre-treatment line, an electrophoresis line, an electrophoresis drying chamber, a first vehicle body storage area, and a second vehicle body storage area. A first conveyor line for transferring vehicles from the pre-treatment line to the electrophoresis line is provided between the pre-treatment line and the electrophoresis line. A second conveyor line for transferring vehicles from the electrophoresis line to the electrophoresis drying chamber is provided between the electrophoresis line and the electrophoresis drying chamber. The first vehicle body storage area has a first storage line that transfers vehicles in a first-in, first-out (FIFO) order. The input end of the first storage line is connected to the reversing and exiting part of the first conveyor line, and the output end of the first storage line is connected to the reversing and entering part of the first conveyor line. The second vehicle body storage area has a second storage line that transfers vehicles in a FIFO order. The input end of the second storage line is connected to the reversing and exiting part of the second conveyor line, and the output end of the second storage line is connected to the reversing and entering part of the second conveyor line. The output end of the electrophoresis drying chamber is connected to the first storage line.

[0006] When the electrophoresis line conveyor chain stops:

[0007] On-site operators activate the emergency evacuation control of the pre-processing line, and the vehicle body on the pre-processing line is transferred to the first storage line via the reversing and removal section of the first conveyor line for temporary storage.

[0008] After the electrophoresis line conveyor chain resumes operation, the on-site operator initiates the emergency evacuation and restoration control of the pretreatment line, and the car body stored on the first storage line is transferred to the electrophoresis line via the reversing and transfer section of the first conveyor line.

[0009] When the conveyor chain in the electrophoresis drying chamber stops:

[0010] On-site operators activate the emergency evacuation control of the electrophoresis line, and the car body on the electrophoresis line is transferred to the second storage line via the reversing and removal section of the second conveyor line for temporary storage.

[0011] After the conveyor chain in the electrophoresis drying chamber resumes operation, the on-site operator initiates the emergency evacuation and restoration control of the electrophoresis line. The car body stored on the second storage line is transferred to the electrophoresis drying chamber via the reversing transfer section of the second conveyor line.

[0012] As a preferred embodiment of the present invention, the reversing inlet and reversing outlet of the first conveyor line are respectively provided with rotating roller beds.

[0013] As a preferred embodiment of the present invention, the first storage line includes a first transfer machine, a second transfer machine, and a first storage roller bed. The first storage roller bed is arranged in multiple rows. The first transfer machine and the second transfer machine are respectively disposed at both ends of the length direction of the first storage roller bed, and the conveying direction of the first transfer machine and the conveying direction of the second transfer machine are both perpendicular to the first storage roller bed. The first transfer machine is connected to the reversing inlet and reversing outlet of the first conveying line, respectively.

[0014] As a preferred embodiment of the present invention, when the input end and the output end of the first storage line are at the same position, the reversing removal part and the reversing insertion part of the first conveyor line are a common removal and insertion part, and the common removal and insertion part is provided with a first rotating roller and a second rotating roller; the first side of the first rotating roller is connected to the input end of the electrophoresis line, the second side of the first rotating roller is connected to the first side of the second rotating roller, the second side of the second rotating roller is connected to the first transfer machine, and the third side of the second rotating roller is connected to the first storage roller closest to the output end of the first storage line;

[0015] When the electrophoresis line conveyor chain stops:

[0016] On-site operators activate the emergency evacuation control of the pre-processing line. The car body on the pre-processing line is transferred sequentially to the input end of the first storage line via the first rotary roller and the second rotary roller, and is sequentially stored on the first storage roller in each row under the coordinated transfer of the first transfer machine and the second transfer machine.

[0017] After the electrophoresis line conveyor chain resumes operation, the on-site operator initiates the emergency evacuation and restoration control of the pretreatment line. The car bodies stored on the first storage roller bed are transferred to the output end of the first storage line in a first-in-first-out order under the coordinated transfer of the first transfer machine and the second transfer machine, and then transferred to the electrophoresis line via the second rotating roller bed and the first rotating roller bed.

[0018] As a preferred embodiment of the present invention, the reversing inlet and reversing outlet of the second conveyor line are respectively provided with rotating roller beds.

[0019] As a preferred embodiment of the present invention, the second storage line includes a third transfer machine, a fourth transfer machine, and a second storage roller bed. The second storage roller bed is arranged in multiple rows. The third transfer machine and the fourth transfer machine are respectively disposed at both ends of the length direction of the second storage roller bed, and the conveying direction of the third transfer machine and the conveying direction of the fourth transfer machine are both perpendicular to the second storage roller bed. The third transfer machine is connected to the reversing inlet and reversing outlet of the second conveying line, respectively.

[0020] In a preferred embodiment of the present invention, when the input end and output end of the second storage line are respectively located at different positions, a third rotary roller bed is provided on the reversing and exiting part of the second conveyor line, and a fourth rotary roller bed is provided on the reversing and entering part of the second conveyor line; the first side of the third rotary roller bed is connected to the first side of the fourth rotary roller bed, and the second side of the third rotary roller bed is connected to the third transfer machine; the second side of the fourth rotary roller bed is connected to the input end of the electrophoresis drying chamber, and the third side of the fourth rotary roller bed is connected to the third transfer machine;

[0021] When the conveyor chain in the electrophoresis drying chamber stops:

[0022] On-site operators activate the emergency evacuation control of the electrophoresis line. The car body on the electrophoresis line is transferred to the input end of the second storage line via the third rotating roller bed, and is sequentially stored on each row of the second storage roller bed under the coordinated transfer of the third transfer machine and the fourth transfer machine.

[0023] After the conveyor chain in the electrophoresis drying chamber resumes operation, the on-site operator initiates the emergency evacuation and restoration control of the electrophoresis line. The car bodies stored on the second storage line are transferred sequentially to the output end of the second storage line in a first-in-first-out order under the coordinated transfer of the third and fourth transfer machines, and then transferred to the electrophoresis drying chamber via the fourth rotating roller bed.

[0024] As a preferred embodiment of the present invention, when a pedestrian passage is provided between the first conveyor line and the first storage line, a movable roller bed is provided on the pedestrian passage.

[0025] As a preferred embodiment of the present invention, when a pedestrian passage is provided between the second conveyor line and the second storage line, a movable roller bed is provided on the pedestrian passage.

[0026] The emergency venting system for pre-coating electrophoresis lines based on a dual-swing-bar conveyor structure, as described in this invention, has the following advantages compared to existing technologies:

[0027] This invention effectively solves the problem of batch scrapping of car bodies due to tank overflow caused by blockage in the double-swing conveyor structure of the electrophoresis pretreatment line by setting up a first storage line connecting to the first conveyor line and a second storage line connecting to the second conveyor line. It also cleverly utilizes existing process areas, such as using the storage area after the electrophoresis drying chamber and the primer skid storage area as emergency emptying storage areas for the pretreatment line and the electrophoresis line, respectively, without requiring additional site space, with low equipment investment and easy implementation. At the same time, this emergency emptying system for the electrophoresis pretreatment line also optimizes the transfer route for emptying and restoring car bodies, realizing the first-in-first-out transfer sequence of car bodies and ensuring that the production sequence of car bodies remains unchanged. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0029] Figure 1 This is a layout diagram of the emergency venting system for the pre-coating electrophoresis line based on a double-swing rod conveying structure provided in an embodiment of the present invention;

[0030] Marked in the image:

[0031] Pretreatment line 1; Electrophoresis line 2; Electrophoresis drying chamber 3; First vehicle body storage area 4; Second vehicle body storage area 5; First conveyor line 6; Second conveyor line 7; First storage line 8; Second storage line 9; First rotary roller bed 10a; Second rotary roller bed 10b; First transfer machine 11; Second transfer machine 12; First storage roller bed 13; Third rotary roller bed 14a; Fourth rotary roller bed 14b; Third transfer machine 15; Fourth transfer machine 16; Second storage roller bed 17; Pedestrian walkway 18; Mobile roller bed 19. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., used to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] like Figure 1As shown, a preferred embodiment of the present invention provides an emergency venting system for a pre-coating electrophoresis line based on a dual-swing-bar conveyor structure. The system includes a pre-treatment line 1, an electrophoresis line 2, an electrophoresis drying chamber 3, a first vehicle body storage area 4, and a second vehicle body storage area 5. A first conveyor line 6 is provided between the pre-treatment line 1 and the electrophoresis line 2 for transferring vehicle bodies from the pre-treatment line 1 to the electrophoresis line 2. A second conveyor line 7 is provided between the electrophoresis line 2 and the electrophoresis drying chamber 3 for transferring vehicle bodies from the electrophoresis line 2 to the electrophoresis drying chamber 3. The first vehicle body storage area 4 is configured to store vehicle bodies in advance. The first storage line 8 is provided in a first-in-first-out (FIFO) sequence, with its input end connected to the reversing and exiting part of the first conveyor line 6 and its output end connected to the reversing and entering part of the first conveyor line 6; the second vehicle body storage area 5 is provided with a second storage line 9 that is provided in a FIFO sequence, with its input end connected to the reversing and exiting part of the second conveyor line 7 and its output end connected to the reversing and entering part of the second conveyor line 7; the output end of the electrophoresis drying chamber 3 is connected to the first storage line 8.

[0035] When the conveyor chain of electrophoresis line 2 stops: the on-site operator activates the emergency evacuation control of pretreatment line 1, and the car body on the pretreatment line 1 is transferred to the first storage line 8 for temporary storage via the reversing and removal section of the first conveyor line 6; after the conveyor chain of electrophoresis line 2 resumes operation, the on-site operator activates the emergency evacuation and recovery control of pretreatment line 1, and the car body stored on the first storage line 8 is transferred to the electrophoresis line 2 via the reversing and removal section of the first conveyor line 6.

[0036] When the conveyor chain of the electrophoresis drying chamber 3 stops: the on-site operator activates the emergency evacuation control of the electrophoresis line 2, and the car body on the electrophoresis line 2 is transferred to the second storage line 9 for temporary storage via the reversing and removal section of the second conveyor line 7; after the conveyor chain of the electrophoresis drying chamber 3 resumes operation, the on-site operator activates the emergency evacuation and recovery control of the electrophoresis line 2, and the car body stored on the second storage line 9 is transferred to the electrophoresis drying chamber 3 via the reversing and removal section of the second conveyor line 7.

[0037] Therefore, the emergency emptying system for the pre-coating electrophoresis line 2 based on the double-swing-bar conveyor structure provided by the present invention effectively solves the problem of batch scrapping of car bodies due to blockage of the double-swing-bar conveyor structure caused by the electrophoresis line 2 being stuck in the tank. This is achieved by setting a first storage line 8 to connect to the first conveyor line 6 and a second storage line 9 to connect to the second conveyor line 7. Furthermore, it cleverly utilizes existing process areas, such as using the storage area after the electrophoresis drying chamber 3 and the primer skid storage area as emergency emptying storage areas for the pre-treatment line 1 and the electrophoresis line 2, respectively. This eliminates the need for additional site space, requires minimal equipment investment, and is easy to implement. At the same time, the emergency emptying system for the pre-coating electrophoresis line 2 also optimizes the transfer routes for emptying and restoring car bodies, achieving a first-in-first-out transfer sequence for car bodies and ensuring that the production sequence of car bodies remains unchanged.

[0038] It should be noted that the above-mentioned emergency evacuation system for the pre-coating electrophoresis line 2 is also designed with a one-button evacuation and recovery control program, which can be performed by only one person.

[0039] For example, in order to better connect the first conveyor line 6 and the first storage line 8, the first conveyor line 6 is provided with rotating roller beds 10a and 10b on the reversing inlet and reversing outlet sections, respectively; the first storage line 8 includes a first transfer machine 11, a second transfer machine 12 and a first storage roller bed 13, the first storage roller bed 13 is arranged in multiple rows, the first transfer machine 11 and the second transfer machine 12 are respectively located at both ends of the length direction of the first storage roller bed 13, and the conveying direction of the first transfer machine 11 and the conveying direction of the second transfer machine 12 are both perpendicular to the first storage roller bed 13, the first transfer machine 11 is connected to the reversing inlet and reversing outlet sections of the first conveyor line 6, respectively; the output end of the electrophoresis drying chamber 3 is connected to the second transfer machine 12.

[0040] For example, in order to better connect the second conveyor line 7 and the second storage line 9, the reversing inlet and reversing outlet of the second conveyor line 7 are respectively provided with rotating roller beds 14a and 14b; the second storage line 9 includes a third transfer machine 15, a fourth transfer machine 16 and a second storage roller bed 17, the second storage roller bed 17 is arranged in multiple rows, the third transfer machine 15 and the fourth transfer machine 16 are respectively provided at both ends of the length direction of the second storage roller bed 17, and the conveying direction of the third transfer machine 15 and the conveying direction of the fourth transfer machine 16 are both perpendicular to the second storage roller bed 17, the third transfer machine 15 is connected to the reversing inlet and reversing outlet of the second conveyor line 7 respectively.

[0041] It should be noted that the input and output terminals of the first storage line 8 can be located in the same position or in different positions; similarly, the input and output terminals of the second storage line 9 can be located in the same position or in different positions.

[0042] like Figure 1 As shown, when the input and output ends of the first storage line 8 are at the same position, the reversing removal part and the reversing insertion part of the first conveyor line 6 are a common removal and insertion part. The common removal and insertion part is provided with a first rotating roller bed 10a and a second rotating roller bed 10b. The first side of the first rotating roller bed 10a is connected to the input end of the electrophoresis line 2, the second side of the first rotating roller bed 10a is connected to the first side of the second rotating roller bed 10b, the second side of the second rotating roller bed 10b is connected to the first transfer machine 11, and the third side of the second rotating roller bed 10b is connected to the first storage roller bed 13 that is closest to the output end of the first storage line 8. Furthermore, when the conveyor chain of electrophoresis line 2 stops: the on-site operator activates the emergency evacuation control of pretreatment line 1, and the car bodies on pretreatment line 1 are sequentially transferred to the input end of the first storage line 8 via the first rotary roller 10a and the second rotary roller 10b, and are sequentially stored on the first storage roller 13 of each row under the coordinated transfer of the first transfer machine 11 and the second transfer machine 12; after the conveyor chain of electrophoresis line 2 resumes operation, the on-site operator activates the emergency evacuation recovery control of pretreatment line 1, and the car bodies stored on the first storage roller 13 are sequentially transferred to the output end of the first storage line 8 in a first-in-first-out order under the coordinated transfer of the first transfer machine 11 and the second transfer machine 12, and are transferred to the electrophoresis line 2 via the second rotary roller 10b and the first rotary roller 10a.

[0043] like Figure 1As shown, when the input and output ends of the second storage line 9 are respectively located at different positions, a third rotary roller bed 14a is provided on the reversing and exiting part of the second conveyor line 7, and a fourth rotary roller bed 14b is provided on the reversing and entering part of the second conveyor line 7; the first side of the third rotary roller bed 14a is connected to the first side of the fourth rotary roller bed 14b, and the second side of the third rotary roller bed 14a is connected to the third transfer machine 15; the second side of the fourth rotary roller bed 14b is connected to the input end of the electrophoresis drying chamber 3, and the third side of the fourth rotary roller bed 14b is connected to the third transfer machine 15; furthermore, when the conveyor chain of the electrophoresis drying chamber 3 stops: on-site The operator initiates the emergency evacuation control of electrophoresis line 2. The car bodies on electrophoresis line 2 are transferred to the input end of the second storage line 9 via the third rotary roller bed 14a, and are sequentially stored on each row of the second storage roller bed 17 under the coordinated transfer of the third transfer machine 15 and the fourth transfer machine 16. After the conveyor chain of electrophoresis drying chamber 3 resumes operation, the on-site operator initiates the emergency evacuation and recovery control of electrophoresis line 2. The car bodies stored on the second storage line 9 are sequentially transferred to the output end of the second storage line 9 in a first-in-first-out order under the coordinated transfer of the third transfer machine 15 and the fourth transfer machine 16, and are transferred to the electrophoresis drying chamber 3 via the fourth rotary roller bed 14b.

[0044] For example, when a walkway is provided between the first conveyor line 6 and the first storage line 8, a movable roller bed is provided on the walkway. When the conveyor chain of the electrophoresis line 2 stops, the movable roller bed is pushed onto the walkway to connect the first conveyor line 6 and the first storage line 8; when the conveyor chain of the electrophoresis line 2 resumes operation, the movable roller bed is removed to ensure that the walkway is unobstructed.

[0045] For example, when a walkway 18 is provided between the second conveyor line 7 and the second storage line 9, a movable roller bed 19 is provided on the walkway 18. When the conveyor chain of the electrophoresis drying chamber 3 stops, the movable roller bed 19 is pushed onto the walkway to connect the second conveyor line 7 and the second storage line 9; when the conveyor chain of the electrophoresis drying chamber 3 resumes operation, the movable roller bed is removed to ensure that the walkway 18 is unobstructed.

[0046] In the description of this invention, it should be understood that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" used in this invention should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. An emergency venting system for a pre-coating electrophoresis line based on a double-swing-bar conveyor structure, characterized in that, The system includes a pretreatment line, an electrophoresis line, an electrophoresis drying chamber, a first vehicle body storage area, and a second vehicle body storage area. A first conveyor line for transferring vehicles from the pretreatment line to the electrophoresis line is provided between the pretreatment line and the electrophoresis line. A second conveyor line for transferring vehicles from the electrophoresis line to the electrophoresis drying chamber is provided between the electrophoresis line and the electrophoresis drying chamber. The first vehicle body storage area has a first storage line that transfers vehicles in a first-in, first-out (FIFO) order. The input end of the first storage line is connected to the reversing and exiting part of the first conveyor line, and the output end of the first storage line is connected to the reversing and entering part of the first conveyor line. The second vehicle body storage area has a second storage line that transfers vehicles in a FIFO order. The input end of the second storage line is connected to the reversing and exiting part of the second conveyor line, and the output end of the second storage line is connected to the reversing and entering part of the second conveyor line. The output end of the electrophoresis drying chamber is connected to the first storage line. The first conveyor line is equipped with a rotating roller bed on its reversing inlet and reversing outlet sections. The first storage line includes a first transfer machine, a second transfer machine, and a first storage roller bed. The first storage roller bed is arranged in multiple rows. The first transfer machine and the second transfer machine are respectively located at both ends of the length direction of the first storage roller bed. The conveying directions of the first transfer machine and the second transfer machine are both perpendicular to the first storage roller bed. The first transfer machine is connected to the reversing inlet and reversing outlet sections of the first conveyor line. When the input and output ends of the first storage line are at the same position, the reversing and reversing parts of the first conveyor line are a common reversing and infeeding part, and the common reversing and infeeding part is provided with a first rotary roller and a second rotary roller; the first side of the first rotary roller is connected to the input end of the electrophoresis line, the second side of the first rotary roller is connected to the first side of the second rotary roller, the second side of the second rotary roller is connected to the first transfer machine, and the third side of the second rotary roller is connected to the first storage roller closest to the output end of the first storage line; When the electrophoresis line conveyor chain stops: On-site operators initiate the emergency evacuation control procedure for the pre-processing line. The car body on the pre-processing line is sequentially transferred to the input end of the first storage line via the first rotary roller and the second rotary roller, and is sequentially stored on the first storage roller in each row under the coordinated transfer of the first transfer machine and the second transfer machine. After the electrophoresis line conveyor chain resumes operation, the on-site operator initiates the pretreatment line emergency evacuation and recovery control program. The car bodies stored on the first storage roller bed are transferred to the output end of the first storage line in a first-in-first-out order under the coordinated transfer of the first transfer machine and the second transfer machine, and then transferred to the electrophoresis line via the second rotating roller bed and the first rotating roller bed.

2. The emergency venting system for the pre-coating electrophoresis line based on a double-swing rod conveyor structure as described in claim 1, characterized in that, The second conveyor line is equipped with rotary roller beds on its reversing inlet and reversing outlet sections.

3. The emergency venting system for the pre-coating electrophoresis line based on a double-swing rod conveyor structure as described in claim 2, characterized in that, The second storage line includes a third transfer machine, a fourth transfer machine, and a second storage roller bed. The second storage roller bed is arranged in multiple rows. The third transfer machine and the fourth transfer machine are respectively located at both ends of the length direction of the second storage roller bed, and the conveying direction of the third transfer machine and the conveying direction of the fourth transfer machine are both perpendicular to the second storage roller bed. The third transfer machine is connected to the reversing inlet and reversing outlet of the second conveying line, respectively.

4. The emergency venting system for the pre-coating electrophoresis line based on a double-swing rod conveyor structure as described in claim 3, characterized in that, When the input and output ends of the second storage line are respectively located at different positions, a third rotary roller bed is provided on the reversing and exiting part of the second conveyor line, and a fourth rotary roller bed is provided on the reversing and entering part of the second conveyor line; the first side of the third rotary roller bed is connected to the first side of the fourth rotary roller bed, and the second side of the third rotary roller bed is connected to the third transfer machine; the second side of the fourth rotary roller bed is connected to the input end of the electrophoresis drying chamber, and the third side of the fourth rotary roller bed is connected to the third transfer machine; When the conveyor chain in the electrophoresis drying chamber stops: The on-site operator initiates the emergency evacuation control procedure for the electrophoresis line. The car body on the electrophoresis line is transferred to the input end of the second storage line via the third rotating roller bed, and is sequentially stored on each row of the second storage roller bed under the coordinated transfer of the third transfer machine and the fourth transfer machine. After the conveyor chain in the electrophoresis drying chamber resumes operation, the on-site operator initiates the emergency evacuation and restoration control procedure for the electrophoresis line. The car bodies stored on the second storage line are transferred sequentially to the output end of the second storage line in a first-in-first-out order under the coordinated transfer of the third and fourth transfer machines, and then transferred to the electrophoresis drying chamber via the fourth rotating roller bed.

5. The emergency venting system for the pre-coating electrophoresis line based on a double-swing rod conveyor structure as described in claim 1, characterized in that, When a pedestrian walkway is provided between the first conveyor line and the first storage line, a movable roller bed is provided on the pedestrian walkway.

6. The emergency venting system for the pre-coating electrophoresis line based on a double-swing rod conveyor structure as described in claim 1, characterized in that, When a pedestrian walkway is provided between the second conveyor line and the second storage line, a movable roller bed is provided on the pedestrian walkway.

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