Production device of flexible negative-pressure air duct

Abstract

The utility model relates to the technical field of air duct production, in particular to a flexible negative pressure air duct production device which comprises an end frame, a positioning pipe and a transverse support, one end of the positioning pipe is rotatably arranged on the end frame, when a spiral steel ring is installed on a flexible air duct, the flexible air duct is sleeved on the positioning pipe, the positioning pipe drives the flexible air duct to rotate together, and the spiral steel ring is fixed on the end frame. The transverse support is arranged above the positioning pipe in parallel, the fixed concave wheel and the sliding concave wheel are arranged on the transverse support in a spaced mode, a fixed distance is formed between the fixed concave wheel and the sliding concave wheel, and the spiral steel rings are positioned through the fixed concave wheel and the sliding concave wheel, so that the distance between the two steel rings is controlled, and it is guaranteed that the distance between the two steel rings is consistent; the heat sealing device is used for heating a sealing strip of the spiral steel ring, the spiral steel ring is installed on the flexible air duct, further, the sliding concave wheel can move in the length direction of the transverse support, and therefore the interval between the fixed concave wheel and the sliding concave wheel can be adjusted so as to meet the interval requirements of different steel rings.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wind tube production technical field, especially a kind of production device of flexible negative pressure wind tube. BACKGROUND

[0002] Flexible negative pressure wind tube refers to a kind of main air guide device for local ventilation.According to the different manufacturing materials, there are canvas, artificial leather, plastic and rubber etc.

[0003] Negative pressure wind tube connected with fan refers to the pipeline system for guiding the airflow generated by fan to specified area or discharging exhaust gas.Negative pressure wind tube is usually used with fan equipment, and plays an important role in many industries and application occasions, such as ventilation system, air conveying, exhaust gas discharge, etc.Their main function is to guide and convey air or gas, to help achieve air circulation and gas discharge.

[0004] Flexible wind tube, usually made of flexible cloth (such as PVC, polyurethane, rubber, etc.), is widely used in various ventilation, exhaust, air conveying systems, etc.Due to its excellent corrosion resistance, good shock resistance and adaptability, flexible wind tube has become an indispensable part of many ventilation and exhaust systems.

[0005] Usually, spiral steel rings are installed on flexible wind tube to enhance the structural stability of wind tube and maintain its shape, but at present, when installing spiral steel rings on flexible wind tube, the spacing between steel rings is not easy to control, and the spacing between adjacent steel rings is not equal, which leads to deformation of flexible wind tube. INVENTION CONTENTS

[0006] The utility model aims at the problem that the spacing between steel rings is not easy to control when installing spiral steel rings on flexible wind tube, and the spacing between adjacent steel rings is not equal, which leads to deformation of flexible wind tube, and provides a production device of flexible negative pressure wind tube.

[0007] The utility model provides a production device of flexible negative pressure wind tube, which comprises an end frame, a positioning pipe and a horizontal support, one end of the positioning pipe is rotatably arranged on the end frame, the horizontal support is arranged above the positioning pipe in parallel, and the horizontal support is connected with the end frame;

[0008] The horizontal support is provided with fixed concave wheels and sliding concave wheels at intervals, and the sliding concave wheels can move along the length direction of the horizontal support.

[0009] It further comprises a heat sealing device, which is arranged on the front side of the sliding concave wheel.

[0010] The production device of the flexible negative pressure air duct comprises an end frame, a positioning pipe and a transverse support. One end of the positioning pipe is rotatably arranged on the end frame. When the spiral steel ring is installed on the flexible air duct, the flexible air duct is sleeved on the positioning pipe, and the positioning pipe drives the flexible air duct to rotate. The transverse support is arranged in parallel above the positioning pipe. The fixed concave wheel and the sliding concave wheel are arranged at intervals on the transverse support. A fixed interval is formed between the fixed concave wheel and the sliding concave wheel. The spiral steel ring is positioned by the fixed concave wheel and the sliding concave wheel, so as to control the interval between the two steel rings and make the interval between the adjacent steel rings in the spiral steel ring equal, thereby ensuring that the intervals between the steel rings are consistent. Then, the heat sealing device arranged on the front side of the sliding concave wheel is used to heat the sealing strip of the spiral steel ring. The sealing strip is connected to the flexible air duct by heat melting connection, so as to install the spiral steel ring on the flexible air duct. Further, the sliding concave wheel can move along the length direction of the transverse support, so as to adjust the interval between the fixed concave wheel and the sliding concave wheel, thereby adapting to different steel ring interval requirements.

[0011] Preferably, the fixed concave wheel is located at the end of the transverse support away from the end frame. Thus, when the flexible air duct is sleeved on the positioning pipe and the spiral steel ring is installed on the flexible air duct, the spiral steel ring and the sealing strip first pass through the fixed concave wheel and then pass through the sliding concave wheel, which facilitates positioning the interval of the spiral steel ring first and then installing the spiral steel ring on the flexible air duct.

[0012] Preferably, the production device further comprises a sliding mechanism slidingly arranged on the transverse support. The sliding mechanism comprises a sliding plate. The sliding concave wheel is connected to the bottom of the sliding plate. First rollers are arranged on the two sides of the sliding plate.

[0013] A transverse rail is installed in the transverse support. The first rollers are installed in the transverse rail.

[0014] The sliding mechanism can slide in the transverse direction of the transverse support by the rolling of the first rollers in the transverse rail, so as to make the sliding concave wheel move in the transverse direction of the transverse support.

[0015] Preferably, the production device further comprises a fixing mechanism fixedly arranged on the transverse support. The fixing mechanism comprises a fixing plate. The fixing plate is fixedly arranged on the transverse support. The fixed concave wheel is connected to the bottom of the fixing plate.

[0016] Preferably, the production device further comprises a connecting arm. The heat sealing device is rotatably arranged on the connecting arm. The end of the connecting arm away from the heat sealing device is connected to the transverse support.

[0017] The heat sealing device is rotatably arranged on the connecting arm, so as to adjust the angle of the heat sealing device, thereby facilitating heat melting connection at multiple angles on the flexible air duct.

[0018] Preferably, the end frame comprises a fixed support and a movable frame, and the positioning tube and the transverse support are both mounted on the movable frame.

[0019] A first vertical sliding rail is arranged on the side of the fixed support, and a first vertical sliding block is arranged on the side wall of the movable frame and slidably connected with the first vertical sliding rail.

[0020] The positioning tube and the transverse support are both mounted on the movable frame, and the movable frame is slidably connected with the first vertical sliding rail through the first vertical sliding block, so that the positioning tube and the transverse support can be vertically lifted, and the production device of the flexible negative pressure air duct can be adapted to produce flexible air ducts of different sizes.

[0021] Preferably, the machine body is arranged on one side of the end frame and below the positioning tube.

[0022] Two symmetrical bearing supports are arranged on the machine body and parallel to the positioning tube, and a lateral concave wheel is arranged on the bearing support and can move along the length direction of the bearing support.

[0023] Preferably, a lateral roller is further arranged on the bearing support.

[0024] Preferably, a horizontal support is further arranged on the machine body, a longitudinal sliding rail is mounted on the horizontal support, the direction of the longitudinal sliding rail is perpendicular to the direction of the bearing support, a longitudinal sliding block is mounted on the bottom of the bearing support, and the longitudinal sliding block is slidably connected with the longitudinal sliding rail.

[0025] Preferably, a vertical support is further arranged on the machine body, a second vertical sliding rail is arranged on the vertical support, and a second vertical sliding block is mounted on the side of the horizontal support close to the vertical support and slidably connected with the second vertical sliding rail.

[0026] Compared with the prior art, the utility model has the beneficial effects of:

[0027] The production device of the flexible negative pressure air duct comprises an end frame, a positioning pipe and a transverse support, one end of the positioning pipe is rotationally arranged on the end frame, when the spiral steel ring is mounted on the flexible air duct, the flexible air duct is sleeved on the positioning pipe, the positioning pipe drives the flexible air duct to rotate, the transverse support is arranged above the positioning pipe in parallel, fixed concave wheels and sliding concave wheels are arranged on the transverse support in parallel, a fixed interval is formed between the fixed concave wheels and the sliding concave wheels, the spiral steel ring is positioned through the fixed concave wheels and the sliding concave wheels, so that the interval between the two steel rings is controlled, the interval between the adjacent steel rings in the spiral steel ring is equal, then the heat sealing device arranged on the front side of the sliding concave wheel is used for heating the sealing strip of the spiral steel ring, the sealing strip is connected on the flexible air duct through the heat sealing connection mode, so that the spiral steel ring is mounted on the flexible air duct, further, the sliding concave wheel can move along the length direction of the transverse support, so that the interval between the fixed concave wheel and the sliding concave wheel can be adjusted to adapt to the different steel ring interval requirements. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a front view of the present application.

[0029] Figure 2 is a side view of the present application.

[0030] Figure 3 is a perspective view of the present application.

[0031] Figure 4 is a schematic view of the end frame cooperating with the positioning pipe and the transverse support of the present application.

[0032] Figure 5 is a partial enlarged view of A of Figure 4 .

[0033] Figure 6 is a partial enlarged view of B of Figure 4 .

[0034] Figure 7 is a partial enlarged view of C of Figure 4 .

[0035] Figure 8 is a partial enlarged view of D of Figure 2 .

[0036] Figure 9 is a structural schematic view of the fixing mechanism.

[0037] Figure 10 is a structural schematic view of the sliding mechanism.

[0038] Figure 11 is a structural schematic view of the horizontal support and the vertical support.

[0039] Figure 12is Figure 11 a partial enlarged view of E.

[0040] Figure 13 is Figure 11 a partial enlarged view of F.

[0041] the figure is marked

[0042] 1-body, 2-end frame, 21-fixed support, 22-movable frame, 23-first vertical slide rail, 24-first vertical slide block, 3-positioning tube, 4-transverse support, 41-transverse rail, 5-fixed concave wheel, 6-sliding concave wheel, 7-lateral concave wheel, 8-lateral roller, 9-bearing support, 91-transverse sliding groove, 20-horizontal support, 201-longitudinal slide rail, 202-longitudinal slide block, 30-vertical support, 301-second vertical slide rail, 302-second vertical slide block, 40-heat sealing device, 50-connecting arm, 501-arm rod, 502-sleeve, 60-flexible duct, 70-spiral steel ring, 80-sealing strip, 100-sliding mechanism, 110-sliding plate, 120-first roller, 130-first connecting rod, 140-locking piece, 200-fixing mechanism, 210-fixing plate, 220-second connecting rod, 300-lateral mechanism, 310-anchoring plate, 320-second roller, 330-third connecting rod. DETAILED DESCRIPTION

[0043] The utility model will be described in further detail below in combination with specific embodiments. However, this should not be understood as the scope of the above-mentioned subject matter of the utility model being limited to the following embodiments. Any technology realized based on the content of the utility model falls within the scope of the utility model.

[0044] In the description of the specific embodiments of the utility model, the orientation or position relationship terms such as "up", "down", "left", "right", "center", "inside", "outside", etc. appearing without special indication are based on the orientation or position relationship expressed in the drawings or the orientation or position relationship used when the product / equipment / device of the utility model is normally used. These orientation or position relationship terms are merely used to facilitate the description of the utility model scheme or simplify the description in the specific embodiments to facilitate the quick understanding of the scheme by the technicians and should not be understood as indicating or implying that the specific device / component / element must have a specific orientation or be constructed and operated in a specific position relationship, so it should not be understood as a limitation on the utility model.

[0045] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding device / component / element must be absolutely horizontal or vertical or overhanging or parallel, but can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Alternatively, it can be simplified to understand that the corresponding device / component / element is arranged in the direction of "horizontal", "vertical", "overhanging", "parallel" and the like, and can have an error / deviation of ±10% relative to the corresponding direction, more preferably an error / deviation of ±8%, more preferably an error / deviation of ±6%, more preferably an error / deviation of ±5%, more preferably an error / deviation of ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the utility model scheme.

[0046] In addition, the terms "first", "second", "third", and the like in the description of the utility model embodiments are only used to distinguish the same or similar components, and should not be understood as emphasizing or implying the relative importance of the specific components.

[0047] In addition, in the description of the embodiments of the utility model, "several", "a plurality of", "several" represent at least 2. It can be 2, 3, 4, 5, 6, 7, 8, 9, etc. Any case, it can even be more than 9 cases.

[0048] In addition, in the description of the technical scheme of the utility model, unless otherwise specified / limited / limited, the terms "set", "install", "connect", "connect", "set", "lay", "arrange" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, such as welding, riveting, bolting, screw connection and other commonly used connection means in the art. The connection can be mechanical connection, electrical connection or communication connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements.

[0049] Embodiment 1

[0050] As shown in Figures 1-4 A flexible negative pressure air duct production device, comprising an end frame 2, a positioning pipe 3 and a transverse support 4, one end of the positioning pipe 3 is rotatably arranged on the end frame 2, and the transverse support 4 is arranged above the positioning pipe 3, and the transverse support 4 is connected with the end frame 2;

[0051] The transverse support 4 is provided with a fixed concave wheel 5 and a sliding concave wheel 6 at intervals, and the sliding concave wheel 6 can move along the length direction of the transverse support 4;

[0052] It also includes a heat sealing device 40, which is arranged on the front side of the sliding concave wheel 6.

[0053] As shown in Figure 1 , Figure 4 , when the spiral steel ring 70 is installed on the flexible air duct 60, the flexible air duct 60 is sleeved on the positioning pipe 3, the positioning pipe 3 drives the flexible air duct 60 to rotate, the transverse support 4 is arranged in parallel above the positioning pipe 3, the fixed concave wheel 5 and the sliding concave wheel 6 are arranged at intervals on the transverse support 4, a fixed interval is formed between the fixed concave wheel 5 and the sliding concave wheel 6, the spiral steel ring 70 is positioned through the fixed concave wheel 5 and the sliding concave wheel 6, so as to control the interval between the two steel rings, so that the interval between adjacent steel rings in the spiral steel ring 70 is equal, as shown in Figure 5 , and then the heat sealing device 40 arranged on the front side of the sliding concave wheel 6 is used to heat the sealing strip 80 of the spiral steel ring 70, the sealing strip 80 is connected to the flexible air duct 60 through heat melting connection, so as to install the spiral steel ring 70 on the flexible air duct 60, further, the sliding concave wheel 6 can move along the length direction of the transverse support 4, so as to adjust the interval between the fixed concave wheel 5 and the sliding concave wheel 6, so as to adapt to different steel ring interval requirements.

[0054] In one or more embodiments, as shown in Figure 1 , the fixed concave wheel 5 is located at one end of the transverse support 4 away from the end frame 2.

[0055] So as to ensure that when the flexible air duct 60 is sleeved on the positioning pipe 3 and the spiral steel ring 70 is installed on the flexible air duct 60, the spiral steel ring 70 and the sealing strip 80 first pass through the fixed concave wheel 5 and then pass through the sliding concave wheel 6, so as to facilitate positioning the interval of the spiral steel ring 70 first and then installing the spiral steel ring 70 on the flexible air duct.

[0056] In one or more embodiments, as shown in Figure 3 , Figure 7 , further comprising a sliding mechanism 100 slidingly arranged on the transverse support 4, the sliding mechanism 100 comprises a sliding plate 110, the sliding concave wheel 6 is connected to the bottom of the sliding plate 110, and first rollers 120 are arranged on both sides of the sliding plate 110.

[0057] The transverse support 4 is internally provided with a transverse rail 41, and the first rollers 120 are installed in the transverse rail 41.

[0058] The sliding mechanism 100 can slide laterally on the transverse support 4 through the rolling of the first rollers 120 in the transverse rail 41, so as to enable the sliding concave wheel 6 to move laterally on the transverse support 4.

[0059] As shown in Figure 10As shown in the drawings, the sliding mechanism 100 comprises a sliding plate 110, a first connecting rod 130 and a first roller 120, the middle part of the sliding plate 110 is provided with a nut, the first connecting rod 130 is threadedly connected to the nut and penetrates through the sliding plate 110, the top of the first connecting rod 130 is provided with a rotating disc, the bottom of the first connecting rod 130 is connected to the sliding concave wheel 6, and the groove direction of the sliding concave wheel 6 is adjusted by rotating the rotating disc.

[0060] Further, the sliding plate 110 is further provided with a locking piece 140, one side of the locking piece 140 is connected to the sliding plate 110, the other side of the locking piece 140 abuts against the upper surface of the transverse support 4, and the locking piece 140 is fixed on the upper surface of the transverse support 4 by a bolt.

[0061] In one or more embodiments, as shown in the drawings, the end frame 2 further comprises a fixing mechanism 200 fixedly arranged on the transverse support 4, the fixing mechanism 200 comprises a fixing plate 210 and a second connecting rod 220, the middle part of the fixing plate 210 is provided with a nut, the second connecting rod 220 is threadedly connected to the nut and penetrates through the fixing plate 210, the top of the second connecting rod 220 is provided with a rotating disc, and the bottom of the second connecting rod 220 is connected to the fixing concave wheel 5. Figure 1 Figure 3 As shown in the drawings, the fixing mechanism 200 comprises a fixing plate 210 and a second connecting rod 220, the middle part of the fixing plate 210 is provided with a nut, the second connecting rod 220 is threadedly connected to the nut and penetrates through the fixing plate 210, the top of the second connecting rod 220 is provided with a rotating disc, and the bottom of the second connecting rod 220 is connected to the fixing concave wheel 5.

[0062] As shown in the drawings, the fixing mechanism 200 comprises a fixing plate 210 and a second connecting rod 220, the middle part of the fixing plate 210 is provided with a nut, the second connecting rod 220 is threadedly connected to the nut and penetrates through the fixing plate 210, the top of the second connecting rod 220 is provided with a rotating disc, and the bottom of the second connecting rod 220 is connected to the fixing concave wheel 5. Figure 9 In one or more embodiments, as shown in the drawings, the end frame 2 further comprises a fixing mechanism 200 fixedly arranged on the transverse support 4, the fixing mechanism 200 comprises a fixing plate 210 and a second connecting rod 220, the middle part of the fixing plate 210 is provided with a nut, the second connecting rod 220 is threadedly connected to the nut and penetrates through the fixing plate 210, the top of the second connecting rod 220 is provided with a rotating disc, and the bottom of the second connecting rod 220 is connected to the fixing concave wheel 5.

[0063] Figure 5 In one or more embodiments, as shown in the drawings, the end frame 2 further comprises a connecting arm 50, the heat sealing device 40 is rotatably arranged on the connecting arm 50, and the end of the connecting arm 50 away from the heat sealing device 40 is connected to the transverse support 4.

[0064] By rotatably arranging the heat sealing device 40 on the connecting arm 50, the angle of the heat sealing device 40 is adjusted, so that the heat sealing device 40 can be connected to the flexible air duct 60 at multiple angles.

[0065] As shown in the drawings, the connecting arm 50 comprises an arm rod 501 and a sleeve 502, the end of the arm rod 501 away from the sleeve 502 is connected to the transverse support 4, and the heat sealing device 40 is rotatably arranged in the sleeve 502. Figure 5 In one or more embodiments, as shown in the drawings, the end frame 2 further comprises a fixing mechanism 200 fixedly arranged on the transverse support 4, the fixing mechanism 200 comprises a fixing plate 210 and a second connecting rod 220, the middle part of the fixing plate 210 is provided with a nut, the second connecting rod 220 is threadedly connected to the nut and penetrates through the fixing plate 210, the top of the second connecting rod 220 is provided with a rotating disc, and the bottom of the second connecting rod 220 is connected to the fixing concave wheel 5.

[0066] Figure 4 In one or more embodiments, as shown in the drawings, the end frame 2 further comprises a fixing mechanism 200 fixedly arranged on the transverse support 4, the fixing mechanism 200 comprises a fixing plate 210 and a second connecting rod 220, the middle part of the fixing plate 210 is provided with a nut, the second connecting rod 220 is threadedly connected to the nut and penetrates through the fixing plate 210, the top of the second connecting rod 220 is provided with a rotating disc, and the bottom of the second connecting rod 220 is connected to the fixing concave wheel 5. Figure 6 In one or more embodiments, as shown in the drawings, the end frame 2 further comprises a fixing mechanism 200 fixedly arranged on the transverse support 4, the fixing mechanism 200 comprises a fixing plate 210 and a second connecting rod 220, the middle part of the fixing plate 210 is provided with a nut, the second connecting rod 220 is threadedly connected to the nut and penetrates through the fixing plate 210, the top of the second connecting rod 220 is provided with a rotating disc, and the bottom of the second connecting rod 220 is connected to the fixing concave wheel 5.

[0067] ​​​The first vertical sliding rail 23 is arranged on the side of the fixed support 21, and the first vertical sliding block 24 is arranged on the side wall of the movable frame 22, and the first vertical sliding block 24 is in sliding cooperation with the first vertical sliding rail 23.

[0068] The positioning pipe 3 and the transverse support 4 are both arranged on the movable frame 22, and the movable frame 22 is vertically moved through the sliding cooperation of the first vertical sliding block 24 and the first vertical sliding rail 23, so that the positioning pipe 3 and the transverse support 4 can be vertically lifted, and thus the production device of the flexible negative pressure air duct can adapt to the production of flexible air ducts of different sizes.

[0069] In one or more embodiments, as shown in Figures 1-3 The body 1 is arranged on one side of the end frame 2 and below the positioning pipe 3.

[0070] The body 1 is arranged on one side of the end frame 2 and below the positioning pipe 3.

[0071] As shown in Figure 2 The body 1 is arranged on one side of the end frame 2 and below the positioning pipe 3. Figure 7 As shown in The body 1 is arranged on one side of the end frame 2 and below the positioning pipe 3.

[0072] The lateral mechanism 300 includes an anchor plate 310, a second roller 320 and a third connecting rod 330, the middle part of the anchor plate 310 is provided with a nut, the third connecting rod 330 is threadedly connected to the nut and penetrates through the anchor plate 310, the top of the anchor plate 310 is provided with a rotating disc, the bottom of the anchor plate 310 is connected with the lateral recess wheel 7, the groove direction of the lateral recess wheel 7 is adjusted by rotating the rotating disc, one side of the anchor plate 310 is connected with the second roller 320, the lateral sliding groove 91 is arranged on the bearing support 9, and the second roller 320 is arranged in the lateral sliding groove 91, so that the lateral mechanism 300 moves on the bearing support 9, and thus the lateral recess wheel 7 can move along the length direction of the bearing support 9.

[0073] In an optional embodiment, as shown in Figure 7As shown, the lateral roller 8 is also arranged on the bearing bracket 9. By arranging the lateral roller 8 on the bearing bracket 9, the lateral roller 8 on the two bearing brackets 9 can effectively support the flexible air duct 60, cooperate with the positioning pipe 3 above the machine body 1, and effectively drive the flexible air duct 60 to roll.

[0074] Further, the lateral roller 8 is arranged below the lateral concave wheel 7, wherein the lateral concave wheel 7 is arranged on the top of the bearing bracket 9, and the lateral roller 8 is arranged on the middle of the bearing bracket 9, so as to avoid interference between the lateral concave wheel 7 and the lateral roller 8.

[0075] In one or more embodiments, as shown in Figure 1 , Figure 2 As shown, the machine body 1 is also provided with a horizontal support 20, and the bearing bracket 9 is arranged on the horizontal support 20 and can move longitudinally on the horizontal support 20.

[0076] The bearing bracket 9 can move longitudinally on the horizontal support 20, and when the diameter of the flexible air duct 60 changes, the longitudinal position of the bearing bracket 9 on the horizontal support 20 is adjusted adaptively, so as to adapt to flexible air ducts 60 of different sizes.

[0077] In an optional embodiment, as shown in Figure 11 , Figure 12 As shown, the horizontal support 20 is provided with a longitudinal sliding rail 201, and the direction of the longitudinal sliding rail 201 is perpendicular to the direction of the bearing bracket 9. The bottom of the bearing bracket 9 is provided with a longitudinal sliding block 202, and the longitudinal sliding block 202 is in sliding cooperation with the longitudinal sliding rail 201.

[0078] The bearing bracket 9 moves longitudinally on the horizontal support 20 through the sliding cooperation of the longitudinal sliding block 202 and the longitudinal sliding rail 201, so as to adjust the longitudinal position of the bearing bracket 9 on the horizontal support 20.

[0079] In one or more embodiments, as shown in Figure 11 , Figure 13 As shown, the machine body 1 is also provided with a vertical support 30, and the horizontal support 20 can move vertically on the vertical support 30.

[0080] The horizontal support 20 can move vertically on the vertical support 30, so as to facilitate adjustment of the vertical height of the horizontal support 20. In combination with the fact that the bearing bracket 9 can move longitudinally on the horizontal support 20, the vertical height and the longitudinal position of the bearing bracket 9 can be adjusted more flexibly, so that the bearing bracket 9 can more conveniently adapt to flexible air ducts 60 of different sizes, and the flexible air duct 60 can be supported by the lateral roller 8 on the bearing bracket 9, and the spiral steel ring 70 can be supported by the lateral concave wheel 7 on the bearing bracket 9.

[0081] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A production device for a flexible negative pressure ventilation duct, characterized in that, It includes an end frame (2), a positioning tube (3) and a transverse support (4). One end of the positioning tube (3) is rotatably mounted on the end frame (2). The transverse support (4) is arranged parallel above the positioning tube (3) and is connected to the end frame (2). The transverse support (4) is provided with fixed concave wheels (5) and sliding concave wheels (6) at intervals. The sliding concave wheels (6) can move along the length direction of the transverse support (4). It also includes a heat sealing device (40), which is disposed on the front side of the sliding concave wheel (6).

2. The production device for a flexible negative pressure ventilation duct according to claim 1, characterized in that, The fixed concave wheel (5) is located at one end of the transverse support (4) away from the end frame (2).

3. The production device for a flexible negative pressure ventilation duct according to claim 1, characterized in that, It also includes a sliding mechanism (100) slidably disposed on the transverse support (4), the sliding mechanism (100) including a sliding plate (110), the sliding concave wheel (6) being connected to the bottom of the sliding plate (110), and first rollers (120) being provided on both sides of the sliding plate (110); The transverse support (4) has a transverse track (41) installed inside, and the first roller (120) is installed inside the transverse track (41).

4. The production device for a flexible negative pressure ventilation duct according to claim 3, characterized in that, It also includes a fixing mechanism (200) fixedly mounted on the transverse support (4), the fixing mechanism (200) including a fixing plate (210), the fixing plate (210) being fixed on the transverse support (4), and the fixing concave wheel (5) being connected to the bottom of the fixing plate (210).

5. The production device for a flexible negative pressure ventilation duct according to claim 1, characterized in that, It also includes a connecting arm (50), the heat sealing device (40) is rotatably mounted on the connecting arm (50), and one end of the connecting arm (50) away from the heat sealing device (40) is connected to the transverse support (4).

6. The production apparatus for a flexible negative pressure ventilation duct according to claim 1, characterized in that, The end frame (2) includes a fixed bracket (21) and a movable frame (22), and the positioning tube (3) and the transverse bracket (4) are both installed on the movable frame (22); The fixed bracket (21) is provided with a first vertical slide rail (23) on its side, and the movable frame (22) is provided with a first vertical slider (24) on its side wall. The first vertical slider (24) slides in cooperation with the first vertical slide rail (23).

7. A production apparatus for a flexible negative pressure ventilation duct according to any one of claims 1-6, characterized in that, It also includes a body (1), which is located on one side of the end frame (2) and below the positioning tube (3); The body (1) is provided with two mutually symmetrical support brackets (9), the support brackets (9) are parallel to the positioning tube (3), and the support brackets (9) are provided with lateral concave wheels (7), which can move along the length direction of the support brackets (9).

8. The production apparatus for a flexible negative pressure ventilation duct according to claim 7, characterized in that, The support bracket (9) is also provided with a lateral roller (8).

9. The production apparatus for a flexible negative pressure ventilation duct according to claim 8, characterized in that, The body (1) is also provided with a horizontal support (20), and a longitudinal slide rail (201) is installed on the horizontal support (20). The direction of the longitudinal slide rail (201) is perpendicular to the direction of the support bracket (9). A longitudinal slider (202) is installed at the bottom of the support bracket (9). The longitudinal slider (202) slides in cooperation with the longitudinal slide rail (201).

10. The production apparatus for a flexible negative pressure ventilation duct according to claim 9, characterized in that, The body (1) is also provided with a vertical support (30), and a second vertical slide rail (301) is provided on the vertical support (30). A second vertical slider (302) is installed on the side of the horizontal support (20) near the vertical support (30). The second vertical slide rail (301) and the second vertical slider (302) slide in cooperation.

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