A folding device for the outer frame of a smoke exhaust fire damper

Abstract

The utility model relates to fire dam production technical field, specifically disclose a kind of outer frame folding device of smoke exhaust fire dam, including the support mechanism that the outer frame plate conveyed out by roller press side edge bending is guided and supported, and folding mechanism is provided on support mechanism and is bent to the outer frame plate;Support mechanism includes bottom plate, and support frame is fixed in bottom plate upper end, and support roller is intervally set up on support frame, and support roller front end passes through support frame and is suspendedly set up, and limit stop ring is set up on support roller and located support frame front side, and limit stop ring is provided with two, and folding mechanism includes the pivot and limit shaft set up on support frame. Through the setting of support mechanism and folding mechanism, after the outer frame plate of roller pressing, side edge bending is folded when entering support mechanism and folding mechanism, and the outer frame plate is in the support state of communication with front side and is folded, so that frame can be quickly extracted from support mechanism after folding formation, improve the convenience of frame folding after blanking.

Description

Technical Field

[0001] This utility model relates to the field of fire damper manufacturing technology, and in particular to a frame folding device for a smoke exhaust fire damper. Background Technology

[0002] A smoke exhaust fire damper is a fire protection component that is usually installed on the duct of a mechanical smoke exhaust system. It is normally open and opens to exhaust smoke in the event of a fire. It closes when the temperature of the smoke in the exhaust duct reaches 280 degrees Celsius and meets the requirements for smoke leakage and fire resistance integrity for a certain period of time, thus playing the role of smoke isolation and fire prevention. The main materials are carbon steel, galvanized sheet, and stainless steel. In the production process of the outer frame of a smoke exhaust fire damper, the folding and forming of the outer frame is an essential step. A novel outer frame folding device for a smoke exhaust fire damper, with announcement number CN214442148 U, uses a rolling mill to bend the steel plate transported inside. When the steel plate is transported from the discharge end of the rolling mill, the edge is already folded. After the steel plate extends a certain length, the rolling mill stops, and the drive mechanism drives the flipping plate to rotate. The flipping plate lifts the steel plate on its upper end and pushes the steel plate to rotate together with the flipping plate, thus bending the steel plate. Repeating this operation three times folds one end of the steel plate into a rectangular frame. By setting up the flipping plate and drive mechanism, the rolling and bending processes are integrated, effectively improving work efficiency. However, after the frame is folded and formed, removing it from the folding device is difficult, causing inconvenience to production and affecting the processing progress. Utility Model Content

[0003] The purpose of this utility model is to provide a frame folding device for a smoke exhaust fire damper in order to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A folding device for the outer frame of a smoke exhaust fire damper includes a support mechanism that guides and supports the outer frame plate conveyed by side bending of a roller press. The support mechanism is equipped with a folding mechanism for bending the outer frame plate. The support mechanism includes a base plate, a support frame fixed at the upper end of the base plate, support rollers spaced apart on the support frame, the front ends of the support rollers passing through the support frame and suspended in the air, and two limit rings located on the front side of the support rollers on the support frame. The folding mechanism includes a rotating shaft and a limit shaft mounted on the support frame. An arc-shaped through groove that mates with the limit shaft is opened through the support frame. A power component is connected to the rotating shaft. A rotating frame is fixed at the front end of the rotating shaft and the limit shaft. A first telescopic component is mounted on the rotating frame. A fixed plate is located at the lower end of the first telescopic component. A bending frame is connected to the lower side of the fixed plate. Springs are evenly distributed between the bending frame and the fixed plate. Folding rollers are spaced apart at the lower end of the bending frame. A holding component is located on the support frame above the support rollers.

[0006] Further details: The power assembly includes a worm gear fixed on a rotating shaft, a worm meshing on one side of the worm gear, and a servo motor connected to one end of the worm.

[0007] Further details: The rotating shaft, worm gear, and support frame are rotatably connected, and the limiting shaft is slidably connected to the arc-shaped through groove.

[0008] Further configuration: The folding roller is rotatably connected to the bending frame.

[0009] Further configuration: The pressing assembly includes a second telescopic member mounted on the support frame, with a pressing frame fixed to the lower end of the second telescopic member, and a pressure roller rotatably mounted on the lower side of the pressing frame.

[0010] Further settings: The pressure roller and the support roller are set up vertically in a corresponding manner.

[0011] Further configuration: The support roller is rotatably connected to the support frame, and the rearmost limiting ring on the support roller is flush with the front side of the rotating frame.

[0012] Further setting: The arc angle of the arc-shaped through groove is greater than 90°.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] By setting up a support mechanism and a folding mechanism, the outer frame plate, after being rolled and bent on the side, is in a supported state connected to the front when it is folded inside the support mechanism and folding mechanism. This allows the frame to be quickly pulled out from the support mechanism after folding, improving the convenience of unloading the frame after folding. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the outer frame folding device of the smoke exhaust fire damper described in this utility model in its usage state;

[0017] Figure 2 yes Figure 1 Another perspective structural diagram;

[0018] Figure 3 This is a schematic diagram of the outer frame folding device of the smoke exhaust fire damper described in this utility model;

[0019] Figure 4This is a schematic diagram of some parts of the outer frame folding device of the smoke exhaust fire damper described in this utility model;

[0020] Figure 5 This is a schematic diagram of some parts of the folding mechanism of the outer frame folding device of the smoke exhaust fire damper described in this utility model;

[0021] Figure 6 This is a schematic diagram of some parts of the support mechanism of the outer frame folding device of the smoke exhaust fire damper described in this utility model.

[0022] The annotations in the attached figures are explained as follows:

[0023] 11. Base plate; 12. Support frame; 13. Support roller; 14. Limiting ring; 121. Arc-shaped through groove; 21. Rotating shaft; 22. Limiting shaft; 23. Worm gear; 24. Worm; 25. Servo motor; 26. Rotating frame; 27. First telescopic component; 28. Fixing plate; 29. ​​Spring; 210. Bending frame; 211. Folding roller; 213. Second telescopic component; 214. Pressing frame; 215. Pressure roller; 3. Outer frame plate. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and 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 this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] like Figures 1-6 As shown, a smoke exhaust fire damper outer frame folding device includes a support mechanism that guides and supports the outer frame plate 3 that has been bent and conveyed by the side of the roller press, and a folding mechanism that bends the outer frame plate 3 is provided on the support mechanism.

[0028] In this embodiment: the support mechanism includes a base plate 11, a support frame 12 is fixed to the upper end of the base plate 11, support rollers 13 are spaced apart on the support frame 12, the front end of the support rollers 13 passes through the support frame 12 and is suspended in the air, and two limit rings 14 are provided on the support rollers 13 located in front of the support frame 12; the support rollers 13 are rotatably connected to the support frame 12, which improves the convenience of the support rollers 13 in supporting the movement of the outer frame plate 3;

[0029] In this embodiment: the folding mechanism includes a rotating shaft 21 and a limiting shaft 22 mounted on a support frame 12. An arc-shaped through groove 121, which mates with the limiting shaft 22, is provided through the support frame 12. When the rotating frame 26 rotates, the limiting shaft 22 and the arc-shaped through groove 121 cooperate to assist in limiting the rotation. A power assembly is connected to the rotating shaft 21. The rotating frame 26 is fixed to the front end of the rotating shaft 21 and the limiting shaft 22. A first telescopic member 27 is mounted on the rotating frame 26. A fixing plate 28 is provided at the lower end of the first telescopic member 27. A bending frame 210 is connected to the lower side of the fixing plate 28. Springs 29 are evenly distributed between the bending frame 210 and the fixed plate 28, allowing for free movement between the bending frame 210 and the fixed plate 28 to avoid excessive force. Folding rollers 211 are installed at intervals at the lower end of the bending frame 210, and the folding rollers 211 are rotatably connected to the bending frame 210. A pressing component is provided on the support frame 12 above the support roller 13. The rearward limiting ring 14 on the support roller 13 is flush with the front side of the rotating frame 26. The arc angle of the arc-shaped through groove 121 is greater than 90°, so that the folding angle is greater than a right angle, which counteracts the springback of the outer frame plate 3 after folding.

[0030] The power assembly includes a worm gear 23 fixed on a rotating shaft 21, a worm 24 meshing on one side of the worm gear 23, and a servo motor 25 connected to one end of the worm 24. The rotating shaft 21, the worm 24 and the support frame 12 are rotatably connected, and the limiting shaft 22 is slidably connected to the arc-shaped through groove 121. The servo motor 25 drives the worm 24 to mesh and rotate with the worm gear 23, so that the rotating shaft 21 and the rotating frame 26 rotate as a whole.

[0031] The pressing assembly includes a second telescopic member 213 mounted on the support frame 12. The second telescopic member 213 has two locations. A pressing frame 214 is fixed to the lower end of the second telescopic member 213, and a pressure roller 215 is rotatably mounted on the lower side of the pressing frame 214. The pressure roller 215 is arranged vertically and vertically corresponding to the support roller 13. The first telescopic member 27 and the second telescopic member 213 are hydraulic cylinders or pneumatic cylinders, which is existing technology and will not be described in detail here. By extending the second telescopic member 213, the pressing frame 214 and the pressure roller 215 are pushed downward, so that the pressure roller 215 and the support roller 13 press and fix the outer frame plate 3, ensuring the stability of the outer frame plate 3 when it is folded.

[0032] The working principle and usage process of this utility model are as follows: After being rolled and side-bent, the outer frame plate 3 enters the upper side of the support roller 13 from the discharge end of the roller press. The second telescopic member 213 extends and pushes the holding frame 214 and the pressure roller 215 to move downward, so that the pressure roller 215 and the support roller 13 press and fix the outer frame plate 3. The first telescopic member 27 extends and pushes the fixing plate 28 to move downward, so that the folding roller 211 on the lower side of the bending frame 210 contacts the outer frame plate 3. Then, the servo motor 25 drives the worm gear 24 and the worm wheel 23 to mesh and rotate, which drives the rotating shaft 21 and the rotating frame 26 to rotate as a whole. The rotating frame 26 drives the folding roller 211 on the bending frame 210 to fold the outer frame plate 3 downward. The servo motor 25 reverses and resets the rotating frame 26. Then, the outer frame plate 3 continues to be fed into the folding mechanism and folded until the frame is folded and formed. The frame is then pulled out from the front.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A frame folding device for a smoke exhaust fire damper, characterized in that: The system includes a support mechanism that guides and supports the outer frame plate (3) conveyed by side bending of the roller press. The support mechanism is equipped with a folding mechanism for bending the outer frame plate (3). The support mechanism includes a base plate (11), a support frame (12) fixed at the upper end of the base plate (11), support rollers (13) spaced apart on the support frame (12), the front end of the support rollers (13) passing through the support frame (12) and suspended in the air. A limit ring (14) is provided on the support rollers (13) in front of the support frame (12). There are two limit rings (14). The folding mechanism includes a rotating shaft (21) and a limit shaft (22) provided on the support frame (12). The frame (12) has an arc-shaped through groove (121) that cooperates with the limiting shaft (22). A power component is connected to the rotating shaft (21). A rotating frame (26) is fixed at the front end of the rotating shaft (21) and the limiting shaft (22). A first telescopic member (27) is installed on the rotating frame (26). A fixing plate (28) is provided at the lower end of the first telescopic member (27). A bending frame (210) is connected to the lower side of the fixing plate (28). Springs (29) are evenly distributed between the bending frame (210) and the fixing plate (28). Folding rollers (211) are installed at intervals at the lower end of the bending frame (210). A pressing component is provided on the support frame (12) above the support roller (13).

2. The outer frame folding device of the smoke exhaust fire damper according to claim 1, characterized in that: The power assembly includes a worm gear (23) fixed on the rotating shaft (21), a worm (24) meshing on one side of the worm gear (23), and a servo motor (25) connected to one end of the worm (24).

3. The outer frame folding device of a smoke exhaust fire damper according to claim 2, characterized in that: The rotating shaft (21), the worm gear (24) and the support frame (12) are rotatably connected, and the limiting shaft (22) is slidably connected to the arc-shaped through groove (121).

4. The outer frame folding device of a smoke exhaust fire damper according to claim 1, characterized in that: The folding roller (211) is rotatably connected to the bending frame (210).

5. The outer frame folding device of a smoke exhaust fire damper according to claim 1, characterized in that: The pressing assembly includes a second telescopic member (213) disposed on the support frame (12), and a pressing frame (214) is fixed at the lower end of the second telescopic member (213). A pressure roller (215) is rotatably mounted on the lower side of the pressing frame (214).

6. The outer frame folding device of a smoke exhaust fire damper according to claim 5, characterized in that: The pressure roller (215) and the support roller (13) are arranged vertically and vertically respectively.

7. The outer frame folding device of a smoke exhaust fire damper according to claim 1, characterized in that: The support roller (13) is rotatably connected to the support frame (12), and the rearmost limiting ring (14) on the support roller (13) is flush with the front side of the rotating frame (26).

8. The outer frame folding device of a smoke exhaust fire damper according to claim 1, characterized in that: The arc angle of the arc-shaped through groove (121) is greater than 90°.

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