Flexible duct conveying mechanism

Abstract

The present invention discloses a soft air duct conveying mechanism, comprising: a vertical frame, on the surface of which there are vertically arranged inclined holes; a diameter adjusting assembly, including a first tensioning assembly, a second tensioning assembly and a third tensioning assembly for jointly being internally connected to the soft air duct, the second tensioning assembly and the third tensioning assembly are respectively arranged on both sides of the first tensioning assembly, and the second tensioning assembly and the third tensioning assembly slide along the inclined holes respectively in response to the driving of a second cylinder and a third cylinder; a transmission assembly for driving the first tensioning assembly, the second tensioning assembly and the third tensioning assembly to rotate circumferentially. The purpose of the present invention is to provide at least a soft air duct conveying mechanism, which can adapt to soft air ducts with various diameters and can make the soft air duct rotate automatically, and has a relatively high degree of automation.

Description

Technical Field

[0001] The present invention relates to the field of pipe fitting transportation, and particularly to a flexible air duct transportation mechanism. Background Art

[0002] Flexible air ducts are often used in engineering construction, especially in fields such as tunnel engineering and mine engineering, where flexible air ducts with extra-large diameters are often required to ensure ventilation and oxygen supply in the construction environment. Generally, some external components need to be installed in cooperation with the flexible air ducts to adjust the strength or elasticity of the flexible air ducts so as to adapt to the external environment. At present, when installing additional components on flexible air ducts in the market, the installation is generally carried out by manually propping up the flexible air ducts and then installing them, with low production efficiency. Summary of the Invention

[0003] An object of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide a flexible air duct transportation mechanism that can adapt to flexible air ducts of various diameters and can make the flexible air ducts rotate automatically, with a relatively high degree of automation.

[0004] The present invention is achieved by the following technical solutions:

[0005] According to an embodiment of the present invention, a flexible air duct transportation mechanism includes: an upright frame, on the surface of which there are vertically arranged inclined holes; a diameter adjustment assembly, including a first tensioning assembly, a second tensioning assembly, and a third tensioning assembly that are used to be jointly internally connected to the flexible air duct, the second tensioning assembly and the third tensioning assembly are respectively arranged on both sides of the first tensioning assembly, and the second tensioning assembly and the third tensioning assembly slide along the inclined holes respectively in response to the driving of a second air cylinder and a third air cylinder; a transmission assembly for driving the first tensioning assembly, the second tensioning assembly, and the third tensioning assembly to rotate circumferentially.

[0006] According to some embodiments of the present invention, the second tensioning assembly and the third tensioning assembly are respectively connected to the second air cylinder and the third air cylinder through connection blocks, on the upright frame there are guide rails for the connection blocks to slide, and a buffer device is arranged at the bottom of the guide rails.

[0007] According to some embodiments of the present invention, it further includes a guide wheel for pressing on the outside of the flexible air duct.

[0008] According to some embodiments of the present invention, the upright frame includes a finished product side frame body and a processing side frame body, and the inclined holes are provided on both the finished product side frame body and the processing side frame body.

[0009] According to some embodiments of the present invention, the first tensioning assembly includes a first arm and a second arm respectively installed on the processing side frame and the finished product side frame. The second tensioning assembly includes a third arm and a fourth arm respectively installed on the processing side frame and the finished product side frame. The third tensioning assembly includes a fifth arm and a sixth arm respectively installed on the processing side frame and the finished product side frame.

[0010] According to some embodiments of the present invention, the first arm is sleeved with the second arm.

[0011] According to some embodiments of the present invention, the diameter adjusting assembly further includes a support block installed on the processing side frame. The intersection lines of the first arm, the third arm, and the fifth arm with the flexible air duct are all located on the cylindrical surface of the same virtual cylinder. The support block has a supporting surface located on the cylindrical surface.

[0012] According to some embodiments of the present invention, the distances of the fourth arm and the sixth arm relative to the second arm are less than the distances of the third arm and the fifth arm relative to the first arm.

[0013] According to some embodiments of the present invention, the transmission assembly includes a first servo motor and a second servo motor respectively installed on the processing side frame and the finished product side frame. The first arm and the second arm are directly driven by the first servo motor and the second servo motor respectively. The first arm, the third arm, and the fifth arm are linked by the same chain. The second arm, the fourth arm, and the sixth arm are linked by the same chain.

[0014] According to some embodiments of the present invention, the rotation speed of the first servo motor is less than the rotation speed of the second servo motor.

[0015] According to an embodiment of a wire feeding mechanism of the present invention, it has at least the following beneficial effects: The second tensioning assembly and the third tensioning assembly in this application can slide along the inclined holes under the drive of the second cylinder and the third cylinder, so that the distance between the second tensioning assembly and the third tensioning assembly relative to the first tensioning assembly can be adjusted. Thus, it can be adapted to the sleeving of flexible air ducts with different diameters, has a wide application range, and can better position the flexible air duct and implement the assembly of the flexible air duct with external components by fully tensioning the flexible air duct. In addition, the transmission component can also drive the follow-up rotation of the flexible air duct, eliminating the need for manual tensioning and rotation of the flexible air duct, facilitating the radial positioning and processing of the flexible air duct. Therefore, compared with the prior art, the technical solution of this application improves the automation degree of the processing of the flexible air duct and increases the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 FIG. is an overall schematic diagram of an embodiment of the flexible air duct conveying mechanism of the present invention when cooperating with a processing assembly;

[0018] Figure 2 FIG. is an overall schematic diagram of an embodiment of the flexible air duct conveying mechanism of the present invention;

[0019] Figure 3 FIG. is an assembly schematic diagram of a finished product side frame and a diameter adjustment component in an embodiment of the flexible air duct conveying mechanism of the present invention;

[0020] Figure 4 FIG. is an assembly schematic diagram of a processing side frame and a diameter adjustment component in an embodiment of the flexible air duct conveying mechanism of the present invention. Detailed Embodiment

[0021] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0022] In the description of the present invention, it should be understood that greater than, less than, exceeding, etc. are understood as not including the number itself. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0023] In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0024] According to an embodiment of the present invention, a flexible air duct conveying mechanism, such as Figure 1As shown, it at least includes: a vertical frame, on the surface of which there are vertically arranged inclined holes 510; a diameter adjustment component, where the diameter refers to the tensioning diameter that matches the flexible air duct, and this tensioning diameter is smaller than the diameter when the flexible air duct is fully unfolded. The diameter adjustment component includes a first tensioning component, a second tensioning component, and a third tensioning component that are used to be jointly inscribed in the flexible air duct. The first tensioning component, the second tensioning component, and the third tensioning component can either be integrally formed components or separate components. The second tensioning component and the third tensioning component are respectively arranged on both sides of the first tensioning component. The second tensioning component and the third tensioning component slide along the inclined holes 510 in response to the driving of the second cylinder 631 and the third cylinder 650. When the distances between the second tensioning component and the third tensioning component and the first tensioning component are different, the corresponding tensioning diameters are also different. During specific implementation, first, the flexible air duct is sleeved outside the first tensioning component, the second tensioning component, and the third tensioning component, and then the second tensioning component and the third tensioning component are controlled to move, gradually tensioning the flexible air duct until the wrinkles on the surface of the flexible air duct basically disappear; a transmission component, which is used to drive the first tensioning component, the second tensioning component, and the third tensioning component to rotate circumferentially. After the flexible air duct is tensioned, the transmission component causes the first tensioning component, the second tensioning component, and the third tensioning component to rotate respectively, so that a relatively large frictional force can be formed at the contact with the flexible air duct. And because the flexible air duct has been tensioned, this frictional force can also cause the entire flexible air duct to rotate.

[0025] The improvement of the technical solution of this application compared with the prior art is that the second tensioning component and the third tensioning component can slide along the inclined holes 510 under the driving of the second cylinder 631 and the third cylinder 650, so that the distances between the second tensioning component and the third tensioning component relative to the first tensioning component can be adjusted, and thus the sleeving of flexible air ducts with different diameters can be adapted, with a wide range of applications. The flexible air duct can be fully tensioned, and better positioning of the flexible air duct and the assembly of the flexible air duct with external components can be achieved. In addition, the transmission component can also drive the follow-up rotation of the flexible air duct, eliminating the need for manual tensioning and rotation of the flexible air duct, facilitating the radial positioning and processing of the flexible air duct. Therefore, compared with the prior art, the technical solution of this application improves the automation degree of the processing of the flexible air duct and increases the production efficiency.

[0026] In some embodiments of the present invention, such as Figures 1-4, since the inclined holes 510 are symmetrically distributed relative to the first tensioning assembly, to avoid a large impact force and significant noise on the inclined holes 510 when the second cylinder 631 and the third cylinder 650 drive the second tensioning assembly and the third tensioning assembly to slide to the ends of the inclined holes 510, as the inclined holes 510 have slopes, the second tensioning assembly and the third tensioning assembly are respectively connected to the second cylinder 631 and the third cylinder 650 through connection blocks 670. A guide rail 520 for the connection blocks 670 to slide is provided on the vertical frame, and a buffer device 530 is provided at the bottom of the guide rail 520. The buffer device 530 can be an elastic buffer plate or a buffer cylinder. To limit the telescopic stroke of the second cylinder 631 and the third cylinder 650, a handwheel 531 can be provided, and the handwheel 531 is connected to the elastic buffer plate or the buffer cylinder in a screw-nut connection manner. Rotating the handwheel 531 pushes the elastic buffer plate to translate along the length direction of the guide rail 520.

[0027] In some embodiments of the present invention, technically, the flexible air duct can translate while rotating, that is, the movement trajectory of any point on the flexible air duct is spiral. Then the mechanism can further include a guide wheel pressed against the outside of the flexible air duct. The force exerted by the guide wheel on the flexible air duct has a tangential force at an angle towards one side, prompting the flexible air duct to translate.

[0028] Specific descriptions are made for the first tensioning assembly, the second tensioning assembly, and the third tensioning assembly described in the technical solution, which can be either integrally formed components or separate components. In terms of the structure of the first tensioning assembly, the second tensioning assembly, and the third tensioning assembly, the present application includes at least two implementation manners: First, the first tensioning assembly, the second tensioning assembly, and the third tensioning assembly are all integrated. When processing, only need to sleeved the flexible air duct onto the first tensioning assembly, the second tensioning assembly, and the third tensioning assembly, and then perform subsequent operations; Second, the first tensioning assembly, the second tensioning assembly, and the third tensioning assembly are all separate. When processing, only need to load the flexible air duct from the gap between the second tensioning assembly and the third tensioning assembly on one side. In this implementation manner, the external processing components are arranged at the position outside the gap, and the flexible air duct arranged at the gap position during processing is processed, so that the processed part and the unprocessed part of the flexible air duct can be well distinguished.

[0029] As shown in FIGS. 2-4, an implementation mode of the previous section is adopted, and the vertical frame is also set to be split-type, specifically including a finished product side frame body 541 and a processing side frame body 542. Correspondingly, inclined holes 510 are formed in both the finished product side frame body 541 and the processing side frame body 542. The split mode of the first tensioning assembly, the second tensioning assembly, and the third tensioning assembly can be specifically that the first tensioning assembly includes a first arm 611 and a second arm 621 respectively installed on the processing side frame body 542 and the finished product side frame body 541, the second tensioning assembly includes a third arm 641 and a fourth arm 642 respectively installed on the processing side frame body 542 and the finished product side frame body 541, and the third tensioning assembly includes a fifth arm 661 and a sixth arm 662 respectively installed on the processing side frame body 542 and the finished product side frame body 541. To facilitate the installation of the flexible air duct, it is preferred that the finished product side frame body 541 or the processing side frame body 542 is movable, such as being slidably connected to an external frame or installed with rollers, etc., and is moved before processing to make necessary space for the flexible air duct to be sleeved in.

[0030] On the basis of the previous implementation mode, in order to perform continuous and precise processing on the flexible air duct that has translated to the position outside this gap, it is preferred that the ends of the first arm 611 and the second arm 621 are sleeved with each other, such as Figure 3 FIGS. 2 and 4, on the one hand, provide support for the processing of the flexible air duct in this gap part, avoid wrinkling due to the relatively soft material of the flexible air duct, and facilitate processing positioning. On the other hand, the sleeved mode also facilitates the separation of the two to load the flexible air duct for processing.

[0031] In addition, in some embodiments of the present invention, such as Figure 2 FIGS. 4 and

[0032] Since the technical solution of this application is applicable to the situation where radial processing of flexible air ducts is required, it can be used for processing to adjust the local strength of flexible air ducts, such as winding steel wires on flexible air ducts. When this processing requirement needs to be met, since components with relatively high strength or hardness are attached to the processed side of the flexible air duct, and the lengths of the first tensioning assembly, the second tensioning assembly, and the third tensioning assembly are limited, and the space occupied by the full expansion of the flexible air duct in length is relatively large, as the length of the flexible air duct entering the second arm 621, the fourth arm 642, and the sixth arm 662 increases, material stacking will occur between the flexible air ducts. Compared with the stacking of a small amount of soft flexible air ducts on the unprocessed side, the components with relatively high strength or hardness attached to the processed part make it difficult to stack with each other. Therefore, in order to save the space required for implementing the processing and make it convenient to stack the processed part of the flexible air duct, the degree of expansion of the flexible air duct by the diameter adjustment assembly installed on the processing side frame 542 is greater than the degree of expansion of the flexible air duct by the diameter adjustment assembly installed on the finished product side frame 541, so as to leave a certain radial margin for the processed part of the flexible air duct, facilitating the stacking of the processed flexible air duct. That is, the distance between the fourth arm 642 and the sixth arm 662 relative to the second arm 621 is less than the distance between the third arm 641 and the fifth arm 661 relative to the first arm 611.

[0033] According to some embodiments of the present invention, the transmission assembly includes a first servo motor 710 and a second servo motor 720 respectively installed on the processing side frame 542 and the finished product side frame 541. The first arm 611 and the second arm 621 are directly driven by the first servo motor 710 and the second servo motor 720 respectively. The first arm 611, the third arm 641, and the fifth arm 661 are linked by the same chain, and the second arm 621, the fourth arm 642, and the sixth arm 662 are linked by the same chain. Thus, the rotational speeds of the processed part of the flexible air duct and the unprocessed part of the flexible air duct in the radial direction are respectively adjusted by the second servo motor 720 and the first servo motor 710. At the same time, since the first arm 611 and the second arm 621 are sleeved, relative rotation between the two is also allowed, with different rotational speeds.

[0034] Preferably, on the premise that the opening degree of the processed part of the flexible air duct is less than the opening degree of the unprocessed part of the flexible air duct, the rotational speed of the first servo motor 710 is less than the rotational speed of the second servo motor 720, thereby ensuring that the linear speed of the processed part of the flexible air duct is consistent with the linear speed of the unprocessed part of the flexible air duct, avoiding the formation of wrinkles on the flexible air duct due to inconsistent linear speeds on both sides, and avoiding adverse effects on the accuracy of processing positioning, taking into account the advantages of saving space and high precision.

[0035] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A flexible duct conveying mechanism, characterized in that, it includes: A vertical frame, on the surface of which there are vertically arranged inclined holes. The vertical frame includes a finished product side frame body and a processing side frame body. The inclined holes are provided on both the finished product side frame body and the processing side frame body. The finished product side frame body can move before processing to make necessary space for the sleeving of the flexible duct; A diameter adjustment assembly, including a first tensioning assembly, a second tensioning assembly, and a third tensioning assembly that are used to be jointly internally connected to the flexible duct. The second tensioning assembly and the third tensioning assembly are respectively arranged on both sides of the first tensioning assembly. The second tensioning assembly and the third tensioning assembly slide along the inclined holes respectively in response to the driving of a second cylinder and a third cylinder. The first tensioning assembly includes a first arm and a second arm respectively installed on the processing side frame body and the finished product side frame body. The second tensioning assembly includes a third arm and a fourth arm respectively installed on the processing side frame body and the finished product side frame body. The third tensioning assembly includes a fifth arm and a sixth arm respectively installed on the processing side frame body and the finished product side frame body. The distances of the fourth arm and the sixth arm relative to the second arm are less than the distances of the third arm and the fifth arm relative to the first arm; A transmission assembly, used to drive the first tensioning assembly, the second tensioning assembly, and the third tensioning assembly to rotate circumferentially.

2. The flexible duct conveying mechanism according to claim 1, characterized in that: The second tensioning assembly and the third tensioning assembly are respectively connected to the second cylinder and the third cylinder through connection blocks. A guide rail for the connection blocks to slide is provided on the vertical frame, and a buffer device is provided at the bottom of the guide rail.

3. The flexible duct conveying mechanism according to claim 1, characterized in that: It further includes a guide wheel for pressing on the outside of the flexible duct.

4. The flexible duct conveying mechanism according to claim 1, characterized in that: The first arm and the second arm are sleeved.

5. The flexible duct conveying mechanism according to claim 1, characterized in that: The diameter adjustment assembly further includes a support block installed on the processing side frame body. The intersection lines of the first arm, the third arm, and the fifth arm with the flexible duct are all located on the cylindrical surface of the same virtual cylinder, and the support block has a supporting surface located on the cylindrical surface.

6. The flexible duct conveying mechanism according to claim 1, characterized in that: The transmission assembly includes a first servo motor and a second servo motor respectively installed on the processing side frame body and the finished product side frame body. The first arm and the second arm are directly driven by the first servo motor and the second servo motor respectively. The first arm, the third arm, and the fifth arm are linked by the same chain, and the second arm, the fourth arm, and the sixth arm are linked by the same chain.

7. The flexible duct conveying mechanism according to claim 6, characterized in that: The rotation speed of the first servo motor is less than the rotation speed of the second servo motor.

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