A vulcanizing machine directional smoke exhaust device and method

Abstract

The application discloses a vulcanizing machine directional smoke exhaust device and method, which comprises a conveying mechanism, a tire unloader, a smoke exhaust pipeline, a horizontally moving smoke hood and a tire unloader smoke hood. The horizontally moving smoke hood is arranged above the conveying mechanism and moves between a smoke exhaust position and a retreat position, and is provided with a front air suction port facing a mold opening area of the vulcanizing machine and a cooling air suction port facing the conveying mechanism, and is communicated with the smoke exhaust pipeline; the tire unloader smoke hood is arranged on the tire unloader and is communicated with the smoke exhaust pipeline, and is provided with a tire unloading air suction port. When the mold is opened, the mold opening smoke is sucked through the front air suction port; when the tire is taken out and the hot tire is transferred, the smoke around the hot tire is sucked through the tire unloader smoke hood which moves with the tire unloader; after the hot tire enters the bottom area of the horizontally moving smoke hood, the conveying cooling smoke is sucked through the cooling air suction port. The device can adapt to the change of the smoke generation position in the vulcanizing process, realizes phased directional smoke exhaust, and reduces local smoke escape.

Description

Technical Field

[0001] This invention relates to the field of auxiliary smoke extraction technology for tire vulcanizing equipment, specifically to a directional smoke extraction device and method for a vulcanizing machine. Background Technology

[0002] Tire vulcanization production lines typically include continuous processes such as vulcanizing machine mold opening, tire unloader grabbing hot tires, hot tire transfer, and conveying and cooling. When the vulcanizing machine opens, it releases a localized high concentration of vulcanizing fumes instantaneously. During the grabbing, transfer, and conveying cooling processes, fumes are continuously emitted. Therefore, it is necessary to collect the vulcanizing fumes at each of these different stages. Since the location of the vulcanizing fumes changes with the vulcanization process, the exhaust system, as an auxiliary device in the vulcanization production line, not only needs to form a corresponding suction area but also needs to coordinate with the actions of the vulcanizing machine mold opening, tire unloader tire removal and transfer, and conveying mechanism to avoid obstructing the transfer path of the tire unloader carrying the hot tires and to maintain the continuity of the exhaust process between adjacent processes.

[0003] In the prior art, there are already solutions for treating vulcanizing fumes through closed or partial collection methods. For example, patent CN221046899U discloses a gas collection hood for a giant tire vulcanizing machine, which includes a movable frame, a cover connected to the movable frame, a follower frame, and a follower frame cover connected to the follower frame. The movable frame can move from the front end to the rear end of the vulcanizing machine, and the follower frame can move with the mold on the vulcanizing machine to collect the exhaust gas from the vulcanizing machine. As another example, patent CN111361187B discloses a staged vulcanizing machine exhaust gas collection device and its usage method, which includes a rotating air curtain system, an airflow guard plate, and a side suction exhaust hood. The exhaust gas during the mold opening and demolding process of the vulcanizing machine is collected through the combination of the air curtain and the side suction exhaust.

[0004] However, in a vulcanization production line, the location of vulcanization fumes changes depending on the mold opening, tire unloading, and cooling conveying processes. While the existing structures described above can collect exhaust gases around the vulcanizing machine using moving frames, follow-up frames, air curtains, or side-suction exhaust hoods, they primarily collect fumes around the vulcanizing machine itself or the mold opening and unloading areas. This makes it difficult to simultaneously address the tire unloading process, the transfer of hot tires, and the continuous fumes dispersion after the hot tires enter the conveying mechanism. Compensating for this by enclosing a large area or continuously increasing the exhaust volume would easily increase the space required for modification and exhaust energy consumption, and would also dilute the concentration of fumes entering subsequent environmental treatment equipment.

[0005] Therefore, there is an urgent need for a flue gas exhaust device and method that can adapt to changes in the vulcanization process and collect flue gas in a directional manner at different flue gas generation locations. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the purpose of this invention is to provide a directional smoke exhaust device and method for vulcanizing machines, so as to solve the problem that the existing vulcanizing smoke collection structure is difficult to directionally collect the smoke sources at different stages such as mold opening, tire unloading, hot tire transfer and conveying cooling of the vulcanizing machine, which leads to the easy escape of local smoke and a high proportion of ineffective suction.

[0007] To achieve the above objectives, the present invention provides a directional smoke extraction device for a vulcanizing machine, comprising a conveying mechanism and a tire unloader, and further comprising: Smoke exhaust duct; A horizontally movable fume hood, mounted on the conveying mechanism, has a front air intake facing the vulcanizing machine's mold opening area and a cooling air intake facing the conveying mechanism, and is connected to the exhaust pipe; and A tire unloader fume hood is installed over the tire unloader and has a tire unloading air intake. The tire unloader fume hood is connected to the exhaust pipe. The horizontally moving fume hood moves between a fume exhaust position close to the vulcanizing machine and a retracted position away from the vulcanizing machine, and the tire unloader fume hood moves with the tire unloader between the vulcanizing machine and the conveying mechanism.

[0008] Furthermore, the horizontally movable fume hood includes a hood body extending along the conveying direction of the conveying mechanism and supporting connectors disposed on both sides of the hood body. A smoke exhaust chamber is formed inside the hood body, and the front air intake and the cooling air intake are both connected to the smoke exhaust chamber.

[0009] Furthermore, the horizontally moving fume hood is connected to the conveying mechanism via a guide drive assembly, the guide drive assembly including a rodless cylinder and a moving part, and the support connector is connected to the moving part.

[0010] Furthermore, a flap valve is provided at the front air intake. The flap valve includes a valve plate, a valve shaft, and a rotary actuator. The valve shaft is rotatably mounted on the cover near the front air intake. The valve plate is fixed on the valve shaft. The rotary actuator is drivenly connected to the valve shaft.

[0011] Furthermore, the cooling air intake includes a plurality of arrayed cooling air holes, all of which are connected to the interior of the horizontally moving fume hood.

[0012] Furthermore, a baffle valve is provided at the cooling air intake. The baffle valve includes a valve frame surrounding the outside of the plurality of cooling air intake holes, two baffles disposed opposite to each other within the valve frame, and a baffle plate slidably clamped between the two baffles. The baffle plate is connected to a cylinder push rod, and the cylinder push rod drives the baffle plate to slide relative to the plurality of cooling air intake holes.

[0013] Furthermore, the horizontally movable fume hood has a first exhaust port, which is connected to the interior of the horizontally movable fume hood; the tire removal suction port is located at the bottom of the tire remover fume hood, and the upper part of the tire remover fume hood has a second exhaust port, which is connected to the second exhaust port through the interior space of the tire remover fume hood.

[0014] Furthermore, the first smoke exhaust port is connected to the smoke exhaust pipeline via a first flexible smoke exhaust pipe, and the second smoke exhaust port is connected to the smoke exhaust pipeline via a second flexible smoke exhaust pipe.

[0015] Furthermore, the exhaust passage corresponding to the first flexible exhaust pipe is equipped with a proportional damper, and the exhaust passage corresponding to the second flexible exhaust pipe is equipped with an on / off damper.

[0016] The present invention also provides a method for directional smoke extraction from a vulcanizing machine, comprising the following steps: Before the vulcanizing machine opens the mold, the horizontally moving fume hood is moved to the exhaust position so that the front air intake faces the vulcanizing machine opening area; When the vulcanizing machine opens the mold, the opening flue gas is drawn in through the front air intake; When the tire unloader removes the tire, the tire unloader fume hood moves with the tire unloader and draws in the fumes around the hot tire through the tire unloader suction port; Before the tire unloader transfers the hot tire to the conveying mechanism, the horizontally moving fume hood moves to the retracted position. As the tire unloader carries the hot tire to the conveying mechanism, the tire unloader fume hood moves with the tire unloader and continuously draws in the flue gas around the hot tire through the tire unloader air inlet. When the hot tire begins to enter the bottom area of ​​the horizontally moving fume hood, cooling fumes are drawn from the hot tire through the cooling air intake.

[0017] Beneficial effects: Compared with the prior art, the present invention allows the horizontally moving fume hood to switch between a smoke exhaust position and a retracted position, and respectively sets a front air intake facing the vulcanizing machine's mold opening area and a cooling air intake facing the conveying mechanism on the horizontally moving fume hood. This enables the same horizontally moving fume hood to extract smoke from different smoke generation locations during the vulcanizing machine's mold opening stage and the hot tire conveying and cooling stage. At the same time, by moving the tire unloader fume hood with the tire unloader, the tire unloading air intake is kept close to the hot tire smoke source during the tire unloader's tire removal and hot tire transfer process. Therefore, the present invention can form corresponding near-source smoke exhaust paths around the three continuous processes of mold opening, tire removal and transfer, and conveying and cooling, reducing the local smoke escape caused by the inability of fixed collection structures to cover the hot tire movement path, and reducing the need for large-scale overall suction for compensation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of a directional smoke exhaust device for a vulcanizing machine provided in this embodiment; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is an exploded view of the internal structure of the horizontally moving fume hood provided in this embodiment; Figure 4 This is a bottom view of the horizontally movable fume hood provided in this embodiment; Figure 5 This is a schematic diagram of the gate valve structure provided in this embodiment; Figure 6 This is a schematic diagram of the tire unloader fume hood structure provided in this embodiment.

[0020] Explanation of reference numerals in the attached figures: 1 - Conveying mechanism; 2 - Tire unloader; 3 - Smoke exhaust pipe; 4-Horizontal moving fume hood, 41-Hood body, 42-Support connector, 43-Front air intake, 44-Cooling air intake, 45-First exhaust port, 46-Waving fume hood; 5-Tire unloading device fume hood, 51-Tire unloading air intake, 52-Second exhaust outlet; 6-Guide drive assembly, 61-Rodless cylinder, 62-Moving part; 7-Flap valve, 71-Valve plate, 72-Valve shaft, 73-Rotary actuator, 74-Valve shaft seat; 8-Slide valve, 81-Valve frame, 82-Stop arm, 83-Slide plate, 84-Cylinder push rod, 85-Guide wheel, 86-Cylinder; 9-First flexible exhaust pipe; 10-Second flexible exhaust pipe. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Example 1 like Figures 1 to 6As shown, this embodiment provides a directional fume extraction device for a vulcanizing machine. The device includes a conveying mechanism 1, a tire unloader 2, a fume extraction pipe 3, a horizontally moving fume hood 4, and a tire unloader fume hood 5. The horizontally moving fume hood 4 is mounted on the conveying mechanism 1 and has a front air intake 43 facing the mold opening area of ​​the vulcanizing machine and a cooling air intake 44 facing the conveying mechanism 1. The horizontally moving fume hood 4 is connected to the fume extraction pipe 3. The tire unloader fume hood 5 covers the tire unloader 2 and has a tire unloading air intake 51. The tire unloader fume hood 5 is also connected to the fume extraction pipe 3. The horizontally moving fume hood 4 moves between a fume extraction position close to the vulcanizing machine and a retracted position away from the vulcanizing machine. The tire unloader fume hood 5 moves with the tire unloader 2 between the vulcanizing machine and the conveying mechanism 1.

[0023] In this embodiment, the exhaust end of the flue duct 3 is connected to the existing negative pressure exhaust system in the vulcanization workshop. When the negative pressure exhaust system is working, a suction negative pressure is formed in the flue duct 3, the horizontally moving fume hood 4, and the tire unloader fume hood 5, allowing the vulcanizing fumes to enter the flue duct 3 through the corresponding air inlets. The description below of drawing fumes through the front air inlet 43, the cooling air inlet 44, or the tire unloader air inlet 51 is based on the premise that the flue duct 3 is in a negative pressure suction state.

[0024] The exhaust process of this structure does not rely on a large-scale hood to uniformly extract exhaust gas from the vulcanization area. Instead, the horizontally moving fume hood 4 and the tire unloader fume hood 5 correspond to the exhaust gas generation locations at different stages of the vulcanization process. Specifically: during the mold opening stage of the vulcanizing machine, the horizontally moving fume hood 4 moves to an exhaust position close to the vulcanizing machine, with the front suction port 43 facing the mold opening exhaust gas release area; during the stage where the tire unloader 2 grabs and transfers the hot tire, the tire unloader fume hood 5 moves synchronously with the tire unloader 2, with the tire unloading suction port 51 remaining near the hot tire; after the horizontally moving fume hood 4 moves to the retracted position, the tire unloader 2 places the hot tire onto the conveying mechanism 1, with the cooling suction port 44 facing the hot tire conveying path on the conveying mechanism 1. Thus, the mold opening exhaust gas, the tire removal and transfer exhaust gas, and the conveying cooling exhaust gas enter the exhaust pipe 3 through their corresponding suction ports, achieving directional exhaust to reduce the situation where vulcanization exhaust gas diffuses between different process locations and is then concentratedly extracted.

[0025] like Figure 1 , Figure 3 and Figure 4As shown, the horizontally movable fume hood 4 includes a hood body 41 and supporting connectors 42. The hood body 41 extends along the conveying direction of the conveying mechanism 1, and the supporting connectors 42 are disposed on both sides of the hood body 41. A fume exhaust chamber is formed inside the hood body 41, and the front air intake 43, cooling air intake 44, and first fume exhaust 45 are all connected to the interior of the hood body 41. The front air intake 43 is disposed on the side of the hood body 41 closest to the vulcanizing machine, the cooling air intake 44 is disposed on the side of the hood body 41 facing the conveying mechanism 1, and the first fume exhaust 45 is disposed on the upper part of the hood body 41. The fume from the vulcanizing machine mold opening enters the interior of the hood body 41 through the front air intake 43, and the cooling fume from the hot tire conveying enters the interior of the hood body 41 through the cooling air intake 44. The fume inside the hood body 41 is then discharged through the first fume exhaust 45.

[0026] In this embodiment, as Figure 3 and Figure 4 As shown, a flared fume hood 46 is provided on the outer side of the front air intake 43. The flared fume hood 46 is located on the side of the hood 41 facing the mold opening area of ​​the vulcanizing machine and is connected to the front air intake 43. The flared fume hood 46 is gradually widened in the direction away from the front air intake 43. When the vulcanizing machine opens the mold, the flue gas released instantaneously in the mold opening area is guided into the front air intake 43 through the flared fume hood 46 and enters the interior of the hood 41. The flared fume hood 46 creates a wider flue gas inlet area on the front side of the front air intake 43, improving the concentration of flue gas entering the horizontally moving fume hood 4 during the instantaneous mold opening.

[0027] A flap valve 7 is installed on the inner side of the front air intake 43, and the flap valve 7 is located between the front air intake 43 and the smoke exhaust chamber inside the hood 41. During the mold opening stage of the vulcanizing machine, after the flap valve 7 is opened, the mold opening flue gas passes through the flared smoke guide hood 46, the front air intake 43, and the flow area after the flap valve 7 is opened before entering the interior of the hood 41. During the conveying and cooling stage, after the flap valve 7 reduces its opening or closes, the flow area on the front air intake 43 side decreases, and the main suction area of ​​the horizontally moving smoke hood 4 shifts to the cooling air intake 44 side.

[0028] The flap valve 7 includes a valve plate 71, a valve shaft 72, and a rotary actuator 73. In this embodiment, the flap valve 7 also includes a valve shaft seat 74, which is installed on the inner side of the cover 41 near the front air intake 43. The valve shaft 72 is rotatably mounted on the valve shaft seat 74. The valve plate 71 is fixed on the valve shaft 72, and the rotary actuator 73 is drivenly connected to the valve shaft 72. When the rotary actuator 73 drives the valve shaft 72 to rotate, the valve plate 71 swings with the valve shaft 72, thereby changing the flow state of the front air intake 43 entering the interior of the cover 41. During the mold opening and smoke exhaust stage, the valve plate 71 rotates to the open position, forming a larger flow area between the front air intake 43 and the interior of the cover 41. During the conveying and cooling stage after the hot tire enters the conveying mechanism 1, the valve plate 71 rotates to the reduced opening or closed position, reducing the air intake volume on the front air intake 43 side and reducing the amount of air from non-current smoke exhaust areas entering the interior of the cover 41 from the front air intake 43.

[0029] like Figure 1 and Figure 2 As shown, the guide drive assembly 6 includes a rodless cylinder 61 and a moving part 62. The rodless cylinder 61 is arranged along the conveying direction of the conveying mechanism 1, and the moving part 62 cooperates with the rodless cylinder 61 and reciprocates along the conveying direction. The support connector 42 is connected to the moving part 62, and when the moving part 62 moves, it drives the entire horizontally moving fume hood 4 to move between the smoke exhaust position and the retracted position through the support connector 42.

[0030] like Figure 1 and Figure 4 As shown, the cooling air intake 44 includes multiple cooling air intake holes arranged in an array on the side of the hood 41 facing the conveying mechanism 1, and all of them are connected to the exhaust chamber inside the hood 41. The multiple cooling air intake holes are used to expand the suction coverage of the cooling air intake 44 within the hot tire conveying area, allowing the cooling fumes from the hot tire conveying to enter the interior of the hood 41 from multiple locations. When the hot tire passes below the horizontally moving fume hood 4 along with the conveying mechanism 1, the fumes continuously emitted from the surface of the hot tire rise upwards into the multiple cooling air intake holes and then into the interior of the hood 41.

[0031] like Figure 1 and Figures 3 to 5 As shown, a slide gate valve 8 is provided at the cooling air intake 44. Since the cooling air intake 44 includes multiple arrayed cooling air intake holes, if the slide gate valve 8 maintains a large opening during the non-conveying cooling stage, it is easy for the horizontally moving fume hood 4 to draw in more air from the non-smoke-generating area above the conveying mechanism 1. Therefore, in this embodiment, the suction level of the cooling air intake 44 is adjusted by changing the opening of the slide gate valve 8, so that the cooling air intake 44 is in a larger suction state when the hot tire enters the bottom area of ​​the horizontally moving fume hood 4, and in a smaller suction state during the non-conveying cooling stage. The slide gate valve 8 includes a valve frame 81, a baffle arm 82, a slide plate 83, a cylinder push rod 84, a guide wheel 85, and a cylinder 86. The valve frame 81 surrounds the outside of the multiple cooling air intake holes, the two baffle arms 82 are arranged opposite each other inside the valve frame 81, and the slide plate 83 is slidably clamped between the two baffle arms 82. The output end of the cylinder 86 is connected to the cylinder push rod 84, and the cylinder push rod 84 is connected to the slide plate 83. When the cylinder 86 is activated, the cylinder push rod 84 drives the insert plate 83 to slide relative to multiple cooling air intake holes, and the guide wheel 85 is located on the sliding path of the insert plate 83, so that the insert plate 83 moves in a predetermined direction.

[0032] In this embodiment, when the insert plate 83 slides relative to the multiple cooling suction holes, it changes the opening degree of the insert plate valve 8, thereby adjusting the suction degree of the cooling suction port 44. Before the hot tire enters the bottom area of ​​the horizontally moving fume hood 4, the insert plate 83 is in a position that makes the insert plate valve 8 have a small opening or is closed, so that the airflow entering the hood 41 through the cooling suction port 44 is reduced; when the hot tire begins to enter the bottom area of ​​the horizontally moving fume hood 4, the cylinder 86 drives the insert plate 83 to slide, so that the opening degree of the insert plate valve 8 is increased, thereby increasing the suction degree of the cooling suction port 44 for the cooling flue gas transported by the hot tire. As the hot tire continues to move with the conveying mechanism 1, the cooling flue gas transported by the hot tire enters the hood 41 through the multiple cooling suction holes. The multiple cooling suction holes distribute the suction effect of the cooling suction port 44 within the hot tire conveying area, and the insert plate valve 8 adjusts the suction degree of the cooling suction port 44 by changing its opening degree. Thus, the cooling air intake 44 can increase the suction level when the hot tire enters its coverage area and decrease the suction level during non-conveying cooling phases to reduce ineffective suction of air above the conveying mechanism 1.

[0033] like Figure 6 As shown, the tire unloader fume hood 5 is installed outside the tire unloader 2. The tire unloading suction port 51 is located at the bottom of the tire unloader fume hood 5, and the second exhaust port 52 is located at the top of the tire unloader fume hood 5. The tire unloading suction port 51 and the second exhaust port 52 are connected through the internal space of the tire unloader fume hood 5. When the tire unloader 2 grabs a hot tire, the hot tire is located below or near the tire unloading suction port 51. The flue gas around the hot tire enters the interior of the tire unloader fume hood 5 from bottom to top and is discharged through the second exhaust port 52.

[0034] The tire unloader fume hood 5 moves between the vulcanizing machine and the conveying mechanism 1 along with the tire unloader 2, ensuring that the tire unloader suction port 51 remains close to the hot tire fume source during the removal and transfer of the hot tire. Compared to a collection hood fixed around the vulcanizing machine, the suction position of the tire unloader fume hood 5 changes synchronously with the tire unloader 2 and the hot tire, covering the movement path of the hot tire from the vulcanizing machine's mold opening area to the conveying mechanism 1, reducing the possibility of fume escaping the suction area during the transfer of the hot tire.

[0035] like Figure 1 , Figure 3 and Figure 6 As shown, the first exhaust port 45 is connected to the exhaust pipe 3 via the first flexible exhaust pipe 9, and the second exhaust port 52 is connected to the exhaust pipe 3 via the second flexible exhaust pipe 10. The first flexible exhaust pipe 9 is adapted to the movement of the horizontally moving fume hood 4 between the exhaust position and the retracted position, and the second flexible exhaust pipe 10 is adapted to the movement of the tire unloader fume hood 5 with the tire unloader 2.

[0036] In this embodiment, a proportional damper is provided in the exhaust passage corresponding to the first flexible exhaust pipe 9, and an on / off damper is provided in the exhaust passage corresponding to the second flexible exhaust pipe 10. The proportional damper is located on the exhaust branch between the first exhaust port 45 and the exhaust pipe 3, and its opening degree changes to adjust the exhaust air volume of the exhaust branch where the horizontally moving fume hood 4 is located. The on / off damper is located on the exhaust branch between the second exhaust port 52 and the exhaust pipe 3, and its opening and closing state controls the suction state of the exhaust branch where the tire unloader fume hood 5 is located. The flap valve 7 at the front air intake 43 and the slide valve 8 at the cooling air intake 44 respectively adjust the flow state of the air entering the hood 41 from the corresponding air intake. The proportional damper adjusts the branch air volume discharged from the hood 41 through the first exhaust port 45, and the on / off damper controls the opening and closing of the branch discharged from the tire unloader fume hood 5 through the second exhaust port 52. Through the above structural division of labor, the airflow state of the suction port and the air volume of the exhaust branch corresponding to the horizontally moving fume hood 4 can be adjusted respectively, so that the mold opening exhaust and conveying cooling exhaust stages form the corresponding suction state.

[0037] Example 2 This embodiment provides a method for directional smoke extraction from a vulcanizing machine, which is applied to the directional smoke extraction device for a vulcanizing machine described in Embodiment 1. The method follows the sequence of steps: mold opening of the vulcanizing machine, tire removal by the tire remover 2, retraction of the horizontally moving fume hood 4, transfer of the hot tire by the tire remover 2, and cooling of the hot tire. This ensures that the front suction port 43, the tire removal suction port 51, and the cooling suction port 44 form smoke extraction paths at their respective smoke generation stages.

[0038] S1. Before the vulcanizing machine opens the mold, move the horizontally moving fume hood to the exhaust position so that the front air intake faces the vulcanizing machine opening area; Before the vulcanizing machine enters the mold opening process, the horizontally moving fume hood 4 is in the retracted position, and the tire unloader 2 is in the upper position. The rodless cylinder 61 drives the moving part 62 to move along the conveying direction of the conveying mechanism 1. The moving part 62 drives the horizontally moving fume hood 4 from the retracted position to the exhaust position through the support connector 42, so that the front air intake 43 faces the vulcanizing machine mold opening area before the vulcanizing machine molds open. In the embodiment where a flared fume guide hood 46 is provided, the flared fume guide hood 46 moves closer to the vulcanizing machine mold opening area along with the horizontally moving fume hood 4. The opening of the flared fume guide hood 46 faces the mold opening flue gas release area, so that the mold opening flue gas is first guided by the flared fume guide hood 46 before entering the front air intake 43.

[0039] In a preferred embodiment, before the vulcanizing machine opens the mold, the proportional air valve on the corresponding exhaust branch of the first flexible exhaust pipe 9 remains in standby opening, which is 10% to 30%; the switch air valve on the corresponding exhaust branch of the second flexible exhaust pipe 10 is in the closed state. The standby opening maintains a basic negative pressure in the exhaust branch where the horizontally moving fume hood 4 is located, reducing the retention of residual smoke inside the hood 41 and avoiding excessive ineffective suction during the non-mold opening exhaust stage.

[0040] The forward movement of the horizontally moving fume hood 4 occurs before the vulcanizing machine opens the mold. At this time, the tire unloader 2 is in the upper position. Therefore, when the horizontally moving fume hood 4 moves to the exhaust position, it does not interfere with the tire unloader 2's tire removal action. This step ensures that the front suction port 43 reaches a position close to the flue gas source before the mold opens, providing a basis for the exhaust position of the near-source suction of flue gas at the moment of mold opening.

[0041] S2. When the vulcanizing machine opens the mold, the opening flue gas is drawn out through the front air intake; When the vulcanizing machine opens the mold, the front air intake 43 faces the mold opening area. The rotary actuator 73 drives the valve shaft 72 to rotate, and the valve shaft 72 drives the valve plate 71 to rotate, causing the flap valve 7 to open or increase the flow area of ​​the front air intake 43. The proportional air valve on the corresponding exhaust branch of the first flexible exhaust pipe 9 is adjusted to the mold opening exhaust opening degree.

[0042] In a preferred embodiment, when the vulcanizing machine opens the mold, the proportional air valve on the corresponding exhaust branch of the first flexible exhaust pipe 9 is opened to 100% to increase the exhaust air volume of the exhaust branch where the horizontally moving fume hood 4 is located, so as to match the exhaust demand of the instantaneous release of mold opening flue gas and the high local concentration.

[0043] The vulcanizing fumes released at the moment of mold opening enter the hood 41 through the front intake 43, and then enter the exhaust pipe 3 through the first exhaust port 45 and the first flexible exhaust pipe 9. In the embodiment with the flared smoke guide hood 46, the mold opening fumes are first guided into the front intake 43 through the flared smoke guide hood 46, and then enter the hood 41 through the flow area after the flap valve 7 is opened. The flared smoke guide hood 46 expands the fumes inlet area in front of the front intake 43, so that the mold opening fumes enter the horizontally moving smoke hood 4 before spreading into the workshop space. After mold opening and before the tire unloader 2 removes the tire, the horizontally moving smoke hood 4 remains in the exhaust position and continues to draw in the residual fumes in the mold opening area through the front intake 43. Thus, the fumes at the moment of mold opening and the residual fumes in the short time after mold opening both enter the exhaust pipe 3 through the front intake side of the horizontally moving smoke hood 4.

[0044] S3. When the tire unloader removes the tire, the tire unloader fume hood moves with the tire unloader and draws in the fumes around the hot tire through the tire unloader suction port; After the vulcanizing machine opens, the tire unloader 2 is swung into the vulcanizing machine and lowered to grab the hot tire. When the tire unloader 2 begins to remove the tire, the tire unloader fume hood 5 moves synchronously with the tire unloader 2. Under the condition that the exhaust pipe 3 is in a negative pressure suction state, the switch valve on the exhaust branch corresponding to the second flexible exhaust pipe 10 is opened, so that the exhaust branch where the tire unloader fume hood 5 is located is open. During the process of the tire unloader 2 lowering and grabbing the hot tire, the tire unloader suction port 51 is located above or adjacent to the hot tire. The flue gas around the hot tire enters the interior of the tire unloader fume hood 5 through the tire unloader suction port 51, and enters the exhaust pipe 3 through the second exhaust port 52 and the second flexible exhaust pipe 10. Since the hot tire continues to release vulcanizing flue gas when it is just removed from the vulcanizing machine, the tire unloader fume hood 5 moves with the tire unloader 2 to remove the tire, so that the tire unloader suction port 51 remains close to the hot tire flue gas source during the process of the tire unloader 2 lowering, grabbing and lifting the hot tire.

[0045] In a preferred embodiment, when the tire remover 2 begins to remove the tire, the switch valve on the corresponding exhaust branch of the second flexible exhaust pipe 10 is opened; during the process of the tire remover 2 descending, grabbing the hot tire and lifting the hot tire to the transfer height, the switch valve remains open, so that the tire removal air intake 51 continuously draws in the smoke around the hot tire.

[0046] In the initial stage of tire removal, the horizontally moving fume hood 4 remains in the exhaust position, drawing in residual fumes from the vulcanizing machine's mold opening area through the front suction port 43; the tire unloader fume hood 5 draws in fumes around the hot tire through the tire unloading suction port 51. Thus, the residual fumes from the mold opening area and the fumes released from the newly removed hot tire are drawn in through their respective fume hoods.

[0047] S4. Before the tire unloader carries the hot tire to the conveying mechanism, the horizontally moving fume hood moves to the retracted position. After the tire unloader 2 grabs the hot tire and lifts it to the transfer height, before the tire unloader 2 transfers the hot tire to the conveying mechanism 1, the horizontally moving fume hood 4 retracts from the exhaust position to the retracted position. The retraction of the horizontally moving fume hood 4 is accomplished by the rodless cylinder 61 driving the moving part 62, which, through the support connector 42, drives the horizontally moving fume hood 4 back along the conveying direction of the conveying mechanism 1. After the horizontally moving fume hood 4 retracts, the flap valve 7 closes or reduces the opening of the front air intake 43, and the proportional air valve on the corresponding exhaust branch of the first flexible exhaust pipe 9 is adjusted to the conveying cooling preparation opening. The conveying cooling preparation opening is less than the conveying cooling exhaust opening used in the subsequent hot tire conveying cooling stage, so that the exhaust branch where the horizontally moving fume hood 4 is located maintains a basic negative pressure, while reducing the ineffective suction generated when the cooling air intake 44 has not yet corresponded to the hot tire. When the horizontally moving fume hood 4 is in the retracted position, it provides clearance for the tire unloader 2 to move towards the conveying mechanism 1 carrying the hot tire and for the tire to be lowered and released. Simultaneously, it aligns the cooling air intake 44 with the hot tire conveying area on the conveying mechanism 1. During the movement of the horizontally moving fume hood 4 from the exhaust position to the retracted position, the switch valve on the exhaust branch of the second flexible exhaust pipe 10 remains open, ensuring that the tire unloader fume hood 5 continues to operate in a suction state. After the horizontally moving fume hood 4 completes its retraction, the tire unloader 2 begins to transfer the hot tire towards the conveying mechanism 1.

[0048] S5. When the tire unloader carries the hot tire to the conveying mechanism, the tire unloader fume hood moves with the tire unloader and continuously draws in the flue gas around the hot tire through the tire unloader suction port. After the horizontally moving fume hood 4 moves to the retracted position, the tire unloader 2 carries the hot tire towards the conveying mechanism 1. The tire unloader fume hood 5 moves synchronously with the tire unloader 2, ensuring that the tire unloading suction port 51 remains above or near the hot tire during the hot tire transfer process. During the hot tire transfer, the switch valve on the corresponding exhaust branch of the second flexible exhaust pipe 10 remains open, and the flue gas continuously released from the hot tire enters the interior of the tire unloader fume hood 5 through the tire unloading suction port 51, and then sequentially enters the exhaust pipe 3 through the second exhaust port 52 and the second flexible exhaust pipe 10. Because the second flexible exhaust pipe 10 can deform accordingly with the tire unloader fume hood 5, the tire unloader fume hood 5 can move between the vulcanizing machine and the conveying mechanism 1 with the tire unloader 2 without affecting the connection between the tire unloader fume hood 5 and the exhaust pipe 3. After the tire unloader 2 carries the hot tire above the conveying mechanism 1, the tire unloader 2 descends and places the hot tire onto the conveying mechanism 1. During the lowering and unloading of the tire by the tire unloader 2, the tire unloader fume hood 5 continues to move with the tire unloader 2, keeping the tire unloading suction port 51 close to the hot tire and continuously sucking up the fumes emitted around the hot tire during the unloading process. After the hot tire is placed on the conveying mechanism 1, the tire unloader fume hood 5 can remain above or in the vicinity of the hot tire for a preset time to continue sucking up the concentrated fumes released when the hot tire is first placed. The preset time can be set according to the duration of concentrated fumes from the hot tire and the production cycle of the vulcanizing machine.

[0049] S6. When the hot tire begins to enter the bottom area of ​​the horizontally moving fume hood, cooling flue gas is drawn from the hot tire through the cooling air intake; After the hot tire is placed on the conveying mechanism 1, the conveying mechanism 1 moves the hot tire towards the bottom area of ​​the horizontally moving fume hood 4. When the hot tire begins to enter the bottom area of ​​the horizontally moving fume hood 4, the cylinder 86 drives the slide plate 83 to slide through the cylinder push rod 84, increasing the opening of the slide plate valve 8, thereby increasing the suction level of the cooling air intake 44. At the same time, the proportional air valve on the exhaust branch corresponding to the first flexible exhaust pipe 9 is adjusted from the pre-cooling conveying opening to the cooling exhaust conveying opening, so that the cooling air intake 44 has a suction volume suitable for drawing the cooling fumes from the hot tire. As the hot tire continues to move with the conveying mechanism 1, the cooling fumes emitted from the surface of the hot tire rise into the cooling air intake 44, enter the interior of the hood 41, and then enter the exhaust pipe 3 through the first exhaust port 45 and the first flexible exhaust pipe 9. The cooling air intake 44 includes multiple cooling air intake holes distributed along the conveying direction of the conveying mechanism 1. These holes expand the air intake coverage of the cooling air intake 44 over the hot tire conveying area, allowing the cooling fumes from the hot tire to enter the hood 41 from multiple locations. Before the hot tire enters the bottom area of ​​the horizontally moving fume hood 4, the insert plate 83 is in a position where the insert valve 8 has a small opening or is closed, and the cooling air intake 44 maintains a small air intake state. After the hot tire begins to enter the bottom area of ​​the horizontally moving fume hood 4, the insert plate 83 slides and increases the opening of the insert valve 8, thereby increasing the air intake degree of the cooling air intake 44 on the cooling fumes from the hot tire. As the hot tire moves with the conveying mechanism 1, its cooling fumes enter the hood 41 through the multiple cooling air intake holes.

[0050] After the hot tire leaves the bottom area of ​​the horizontally moving fume hood 4, the proportional air valve on the corresponding exhaust branch of the first flexible exhaust pipe 9 is reduced to the standby opening or closed, and the slide plate 83 slides and reduces the opening of the slide plate valve 8, thereby reducing the suction degree of the cooling air intake 44. Thus, the cooling air intake 44 maintains a flow state suitable for drawing hot tire fumes during the conveying and cooling phase, and reduces the suction degree during the non-conveying and cooling phase to reduce the continuous suction of air above the conveying mechanism 1. During this process, after the hot tire is placed on the conveying mechanism 1, the tire unloader 2 can remain in the descending tire-releasing position for a preset time, such as 3 minutes; or, when the hot tire leaves the effective suction area corresponding to the tire unloader fume hood 5 with the conveying mechanism 1, the tire unloader 2 rises to its position. When either of these two conditions is met, the switch valve on the corresponding exhaust branch of the second flexible exhaust pipe 10 closes after a delay. The preset time is used to cover the concentrated smoke dissipation stage immediately after the hot tire is placed. Its specific value can be adjusted according to the hot tire specifications, surface temperature, continuous smoke release time, and vulcanizing machine production cycle. If the preset time is too short, it may not fully cover the concentrated smoke dissipation stage after tire placement; if the preset time is too long, it may occupy the subsequent working time of the tire unloader 2, affecting the next tire removal cycle. The hot tire leaving the effective suction area corresponding to the tire unloader fume hood 5 can be used as another termination condition, used to promptly end the suction of the tire unloader fume hood 5 when the hot tire has left the effective suction range of the tire unloader suction port 51. Meeting either of the above two conditions ends the low-position holding, ensuring that the tire unloader fume hood 5 can cover the near-source smoke exhaust stage after the hot tire is placed, and that the tire unloader 2 resets promptly after completing the necessary smoke exhaust.

[0051] Through the above steps, the fumes during the mold opening stage of the vulcanizing machine are drawn in by the front suction port 43; the fumes around the hot tires during the tire removal stage of the tire unloader 2 and the hot tire transfer stage are continuously drawn in by the tire unloading suction port 51; and the fumes during the hot tire conveying and cooling stage are drawn in by the cooling suction port 44. The horizontally moving fume hood 4 and the tire unloader fume hood 5 switch positions and follow up with the suction according to the changes in the location of the fumes generated during the vulcanizing process, so that the vulcanizing fumes enter the corresponding exhaust passage near the location of generation.

[0052] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A directional exhaust device for a vulcanizing machine, comprising a conveying mechanism (1) and a tire unloader (2), characterized in that, Also includes: Smoke exhaust pipe (3); A horizontally movable fume hood (4) is mounted on the conveying mechanism (1). The horizontally movable fume hood (4) has a front air intake (43) facing the mold opening area of ​​the vulcanizing machine and a cooling air intake (44) facing the conveying mechanism (1). The horizontally movable fume hood (4) is connected to the exhaust pipe (3). The tire unloader fume hood (5) is installed on the tire unloader (2) and has a tire unloading air intake (51). The tire unloader fume hood (5) is connected to the exhaust pipe (3). The horizontally moving fume hood (4) moves between a fume exhaust position close to the vulcanizing machine and a retracted position away from the vulcanizing machine, and the tire unloader fume hood (5) moves between the vulcanizing machine and the conveying mechanism (1) along with the tire unloader (2).

2. The directional smoke extraction device for a vulcanizing machine according to claim 1, characterized in that, The horizontally movable fume hood (4) includes a hood body (41) extending along the conveying direction of the conveying mechanism (1) and support connectors (42) provided on both sides of the hood body (41). A smoke exhaust chamber is formed inside the hood body (41), and the front air intake (43) and the cooling air intake (44) are both connected to the smoke exhaust chamber.

3. The directional smoke extraction device for a vulcanizing machine according to claim 2, characterized in that, The horizontally moving fume hood (4) is connected to the conveying mechanism (1) via a guide drive assembly (6). The guide drive assembly (6) includes a rodless cylinder (61) and a moving part (62). The support connector (42) is connected to the moving part (62).

4. The directional smoke extraction device for a vulcanizing machine according to claim 2, characterized in that, A flap valve (7) is provided at the front air intake (43). The flap valve (7) includes a valve plate (71), a valve shaft (72), and a rotary actuator (73). The valve shaft (72) is rotatably disposed on the cover (41) near the front air intake (43). The valve plate (71) is fixed on the valve shaft (72). The rotary actuator (73) is connected to the valve shaft (72) in a transmission manner.

5. The directional smoke extraction device for a vulcanizing machine according to claim 1, characterized in that, The cooling air intake (44) includes a plurality of cooling air intake holes arranged in an array, and the plurality of cooling air intake holes are connected to the interior of the horizontally movable fume hood (4).

6. The directional smoke extraction device for a vulcanizing machine according to claim 5, characterized in that, A slide valve (8) is provided at the cooling air intake (44). The slide valve (8) includes a valve frame (81) surrounding the outside of the plurality of cooling air intake holes, two baffles (82) disposed opposite to each other in the valve frame (81), and a slide plate (83) slidably clamped between the two baffles (82). The slide plate (83) is connected to a cylinder push rod (84), and the cylinder push rod (84) drives the slide plate (83) to slide relative to the plurality of cooling air intake holes.

7. The directional smoke extraction device for a vulcanizing machine according to claim 1, characterized in that, The horizontally movable fume hood (4) has a first exhaust port (45) which is connected to the interior of the horizontally movable fume hood (4); the tire removal suction port (51) is located at the bottom of the tire remover fume hood (5), and the upper part of the tire remover fume hood (5) has a second exhaust port (52). The tire removal suction port (51) is connected to the second exhaust port (52) through the interior space of the tire remover fume hood (5).

8. The directional smoke extraction device for a vulcanizing machine according to claim 7, characterized in that, The first exhaust port (45) is connected to the exhaust pipe (3) through the first flexible exhaust pipe (9), and the second exhaust port (52) is connected to the exhaust pipe (3) through the second flexible exhaust pipe (10).

9. The directional smoke exhaust device for a vulcanizing machine according to claim 8, characterized in that, The first flexible smoke exhaust pipe (9) is equipped with a proportional air valve in the smoke exhaust passage, and the second flexible smoke exhaust pipe (10) is equipped with an on / off air valve in the smoke exhaust passage.

10. A method for directional smoke extraction from a vulcanizing machine, applied to the directional smoke extraction device for a vulcanizing machine as described in any one of claims 1 to 9, characterized in that, Includes the following steps: Before the vulcanizing machine opens the mold, the horizontally moving fume hood is moved to the exhaust position so that the front air intake faces the vulcanizing machine opening area; When the vulcanizing machine opens the mold, the opening flue gas is drawn in through the front air intake; When the tire unloader removes the tire, the tire unloader fume hood moves with the tire unloader and draws in the fumes around the hot tire through the tire unloader suction port; Before the tire unloader transfers the hot tire to the conveying mechanism, the horizontally moving fume hood moves to the retracted position. As the tire unloader carries the hot tire to the conveying mechanism, the tire unloader fume hood moves with the tire unloader and continuously draws in the flue gas around the hot tire through the tire unloader air inlet. When the hot tire begins to enter the bottom area of ​​the horizontally moving fume hood, cooling fumes are drawn from the hot tire through the cooling air intake.

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