Telescopic reducing die

Abstract

The utility model discloses a telescopic reducing mould, which belongs to the technical field of moulds and comprises a telescopic template, a telescopic positioning beam, a telescopic control panel, a telescopic driving shaft and a mould inner framework, the mould inner framework is arranged in the telescopic template, one end of the mould inner framework is connected with the telescopic control panel, and the other end of the mould inner framework is connected with the telescopic positioning beam. The center of the telescopic control panel is connected with a telescopic driving shaft, the telescopic template is provided with a plurality of telescopic positioning beams, the telescopic positioning beams are movably connected with the telescopic control panel, and the technical problems that an existing telescopic device is complex in structure and not beneficial to operation are solved.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, specifically relating to a telescopic variable diameter mold. Background Technology

[0002] Chinese patent CN200964867Y discloses a telescopic curved ventilation duct for mining. This ventilation duct achieves a lightweight design with simple structure, reasonable design, and long service life, while exhibiting low wind resistance and high strength.

[0003] The problem is that during the manufacturing process of this ventilation duct, the folded fabric tube needs to be unfolded first, and then the fabric tube is wound according to the length of the support component. After the ventilation duct is used, the support component and the fabric tube also need to be disassembled. This not only makes the process complicated, but also time-consuming and labor-intensive, reducing construction efficiency.

[0004] Most existing methods for manufacturing ventilation ducts involve first supporting the duct with a support structure, and then securing it with steel wire. However, when it needs to be stored, the large size of the duct requires multiple workers to compress and store it. Therefore, it is essential to provide a device with a telescopic function for manufacturing ventilation ducts. Chinese patent CN218453189U discloses a variable-diameter telescopic mold. While this mold achieves telescopic functionality, it requires complex mechanisms involving gears, connecting rods, lead screws, hydraulic cylinders, and rollers, significantly increasing the number of parts and assembly steps, and making operation complex. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a telescopic variable diameter mold, which solves the technical problem that the existing telescopic device has a complex structure and is not conducive to operation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a telescopic variable diameter mold, including a telescopic template, a telescopic positioning beam, a telescopic control disk, a telescopic drive shaft, and a mold inner skeleton. The telescopic template contains the mold inner skeleton, one end of which is connected to the telescopic control disk. The telescopic control disk is connected to the center of the telescopic drive shaft. The telescopic template is provided with a plurality of telescopic positioning beams, which are movably connected to the telescopic control disk.

[0008] More preferably, the outer layer of the telescopic template is composed of two or more arc-shaped splicing panels.

[0009] More preferably, the outer layer of the telescopic template is composed of 2-4 arc-shaped splicing panels.

[0010] Preferably, the surface of the telescopic control disc facing the telescopic drive shaft has several guide grooves, and a telescopic positioning beam is slidably connected in each guide groove.

[0011] Preferably, the guide groove is arc-shaped.

[0012] Preferably, the depth of the guide groove is no more than 150 mm.

[0013] Preferably, several telescopic positioning beams are evenly spaced and distributed in a circular pattern to ensure uniform stress distribution.

[0014] Preferably, at least three telescopic positioning beams are provided.

[0015] Preferably, the telescopic positioning beams are distributed at 120° intervals.

[0016] Preferably, a mold support is connected to the telescopic control panel, and the mold support is used to fix the mold.

[0017] Preferably, the mold support is a triangular three-dimensional structure, which provides stronger support and makes the variable diameter mold more stable.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention provides a telescopic variable diameter mold. The telescopic template, telescopic positioning beam, telescopic control disc, telescopic drive shaft, and internal mold skeleton together constitute the intricate structure of the variable diameter mold. The internal mold skeleton provides stable support, the telescopic positioning beam ensures the precise position of the template during adjustment, and the telescopic control disc and telescopic drive shaft enable rapid and precise diameter adjustment. Through the coordinated operation of the telescopic template, telescopic positioning beam, telescopic control disc, and telescopic drive shaft, this mold significantly reduces the number of parts and assembly steps, and simplifies operation. This streamlined structure not only reduces the overall weight of the product but also improves stability and reliability. In manufacturing and production, the simple structure makes the production process smoother. It eliminates the need for high-precision, high-cost processing equipment and complex processes, greatly shortening the production cycle and reducing production costs.

[0020] Furthermore, the guide groove transforms the rotational motion of the mold into a linear telescopic opening motion. This ingenious design allows the mold to complete the telescopic motion without the need for complex drive components, and enables the telescopic positioning beam to move more smoothly and precisely, further improving the mold's accuracy and stability.

[0021] Furthermore, the guide groove is designed in an arc shape, allowing the telescopic positioning beam to move along an arc-shaped trajectory during telescopic movement, thus more smoothly adjusting the radial diameter of the mold. This design helps reduce friction and wear on the mold during telescopic movement, extending the mold's service life.

[0022] Furthermore, the depth of the guide groove should not exceed 150mm. A reasonable guide groove depth ensures that the telescopic positioning beam will not be too tight, causing jamming, nor too loose, causing inaccurate positioning, during sliding. This helps improve the telescopic efficiency and positioning accuracy of the mold.

[0023] Furthermore, the telescopic positioning beams are distributed at 120° intervals, making the telescopic positioning beams more stable and thus making the telescopic movement of the mold more stable.

[0024] Furthermore, the evenly spaced telescopic positioning beams can uniformly support the telescopic template, ensuring the stability and balance of the mold during the telescopic process. This design helps prevent deformation or damage to the mold during telescopic operations.

[0025] Furthermore, at least three telescopic positioning beams can provide sufficient support to ensure the stability and strength of the mold during expansion and contraction. This design helps to improve the mold's load-bearing capacity and service life.

[0026] Furthermore, connecting the mold support to the telescopic control panel can further enhance the overall structural strength of the mold. As a supporting structure, the mold support helps prevent the mold from shaking or tilting during processing, improving processing accuracy and stability.

[0027] Furthermore, the triangular three-dimensional mold support structure possesses excellent stability and load-bearing capacity. This design ensures that the mold maintains a stable posture during processing, while reducing the amount of material used in the mold support and lowering manufacturing costs. Attached Figure Description

[0028] Figure 1 This is a structural diagram of the variable diameter air duct of this utility model;

[0029] Figure 2 This is a diagram of the internal components of the variable diameter mold of this utility model;

[0030] Figure 3 This is a diagram of the internal components of the variable diameter mold of this utility model;

[0031] Among them: 1-cloth tube; 2-steel wire; 3-fixing rubber strip; 4-universal hook; 5-connecting ring; 6-variable diameter mold; 7-telescopic template; 8-telescopic positioning beam; 9-telescopic control panel; 10-telescopic drive shaft; 11-mold bracket; 12-mold inner skeleton; 13-guide groove. Detailed Implementation

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

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] The present invention will now be described in further detail with reference to the accompanying drawings:

[0035] like Figure 1-3 As shown, this utility model provides a telescopic variable diameter mold 6, which includes a telescopic template 7, a telescopic positioning beam 8, a telescopic control disk 9, a telescopic drive shaft 10, and a mold inner skeleton 12. The telescopic template 7 is provided with the mold inner skeleton 12, and one end of the mold inner skeleton 12 is connected to the telescopic control disk 9. The telescopic control disk 9 is connected to the center of the telescopic drive shaft 10. The telescopic template 7 is provided with a plurality of telescopic positioning beams 8, and the surface of the telescopic control disk 9 facing the telescopic drive shaft 10 is provided with a plurality of guide grooves 13, and a telescopic positioning beam 8 is slidably connected in each guide groove 13.

[0036] Preferably, the guide groove 13 is arc-shaped.

[0037] Preferably, the depth of the guide groove 13 is no more than 150 mm.

[0038] In a further preferred embodiment, the outer layer of the telescopic template 7 is composed of two or more arc-shaped splicing panels.

[0039] Further preferably, the outer layer of the telescopic template 7 is composed of 2-4 arc-shaped splicing panels.

[0040] Preferably, several telescopic positioning beams 8 are distributed at equal intervals.

[0041] Preferably, at least three telescopic positioning beams 8 are provided.

[0042] Preferably, the telescopic positioning beams 8 are distributed at 120° intervals.

[0043] Preferably, a mold support 11 is connected to the telescopic control panel 9, and the mold support 11 is used to fix the mold.

[0044] Preferably, the mold support 11 has a triangular three-dimensional structure.

[0045] The working principle of this utility model's retractable variable diameter mold is as follows:

[0046] When manufacturing a ventilation duct, the telescopic drive shaft 10 in the reducing mold 6 is rotated by a motor or manually, which in turn drives the telescopic control disc 9 to rotate, thereby causing the reducing mold 6 to telescopically extend or retract along the mold axis. During this process, the telescopic template 7 will retract or extend as needed. Since the fabric tube 2 is tightly fitted onto the reducing mold 6 and reinforced by the steel wire 1 and fixing strip 3, the telescopic movement of the reducing mold 6 directly drives the telescopic movement of the fabric tube 2. Specifically: when the telescopic control disc 9 rotates clockwise, it causes the telescopic template 7 to retract. When retracted to its shortest position, the ventilation duct is fitted onto one end of the reducing mold. Then, rotating the control disc 9 counterclockwise causes the telescopic template 7 to extend along the axial direction, thus opening the ventilation duct. This method, by simply rotating the telescopic control disc 9 to adjust the telescopic movement of the reducing mold 6, makes the manufacturing of the fabric tube 2 more convenient, with a simple and easy-to-implement structure.

[0047] The method for using the retractable variable diameter mold of this utility model to manufacture air ducts includes the following steps:

[0048] 1) Fabricating the fabric tube 2 and preparing the variable diameter mold 7: Select a suitable fabric tube material and fabricate the fabric tube 2 to the required size according to the required diameter range. Connect two or more arc-shaped splicing plates to form the telescopic template 7, making the outer diameter of the telescopic template 7 smaller than the diameter of the fabric tube 2;

[0049] 2) Fitting the fabric tube 2 onto the reducing mold 6: Fit the fabric tube 2 onto the telescopic template 7 and place the connecting rings 5 ​​at both ends of the fabric tube 2 to ensure that the fabric tube 2 and the reducing mold 6 fit together completely.

[0050] 3) Winding steel wire 1 on the outside of cloth tube 2: Select steel wire with a diameter of 6mm and wind steel wire 1 on the outside of cloth tube 2 according to the required pitch of 600mm, ensuring that steel wire 2 is taut and evenly distributed;

[0051] 4) Fixing the universal hooks 4: Arrange the universal hooks 4 longitudinally on the steel wire 1, with a spacing of 1000mm between the universal hooks 4. The universal hooks 4 provide fixing points for subsequent installation and adjustment of the air duct;

[0052] 5) Use fixing strip 3 to fix steel wire 1 to cloth tube 2: Use fixing strip 3 to firmly fix steel wire 1 and cloth tube 2 together to ensure the stability and durability of the air duct;

[0053] 6) Reduce the diameter of the reducing mold 6 and fix the cloth tube 2: Reduce the diameter of the mold 6 so that one end of the cloth tube 2 is fixed to the reducing mold 6. Apply external force to the other end to squeeze and compress the end together, and then tie it to ensure the shape of the air duct is stable;

[0054] 7) When the telescopic control panel 9 rotates clockwise and the telescopic template 7 does not rotate, the telescopic template 7 retracts; conversely, it extends.

[0055] More preferably, the steel wire 1 is spirally wound around the outer wall of the cloth tube 2.

[0056] More preferably, the steel wire 1 is a high-elasticity steel with a diameter of 1mm-6mm and a pitch of 100mm-600mm, and the cloth tube 2 is a flexible material with a diameter of 600mm-1000mm.

[0057] More preferably, the cloth tube 2 is a cylindrical closed structure.

[0058] Preferably, the above-mentioned cloth tube 2 is an antistatic and flame-retardant flexible material.

[0059] More preferably, the cloth tube 2 is provided with docking rings 5 ​​at both ends.

[0060] Preferably, the aforementioned docking ring 5 is a closed steel ring used for the continuous extension of the air duct.

[0061] More preferably, the steel wire 1 is connected to a universal hook 4 for construction suspension.

[0062] More preferably, the spacing of the universal hooks 4 is 500 mm - 1000 mm.

[0063] More preferably, the surface of the steel wire 1 is covered with a fixing strip 3 for fixing the steel wire 1 to the cloth tube 2.

[0064] The above content is only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed in this utility model shall fall within the scope of protection of the claims of this utility model.

Claims

1. A telescopic variable diameter mold, characterized in that, The device includes a telescopic template (7), telescopic positioning beams (8), a telescopic control panel (9), a telescopic drive shaft (10), and a mold inner skeleton (12). The telescopic template (7) contains a mold inner skeleton (12), one end of which is connected to the telescopic control panel (9). The telescopic control panel (9) is connected to the center of the telescopic drive shaft (10). Several telescopic positioning beams (8) are provided on the telescopic template (7), and the telescopic positioning beams (8) are movably connected to the telescopic control panel (9).

2. The telescopic variable diameter mold according to claim 1, characterized in that, The telescopic control disk (9) has several guide grooves (13) on the surface facing the telescopic drive shaft (10), and a telescopic positioning beam (8) is slidably connected in each guide groove (13).

3. The telescopic variable diameter mold according to claim 2, characterized in that, The guide groove (13) is arc-shaped.

4. The telescopic variable diameter mold according to claim 2, characterized in that, The depth of the guide groove (13) is no more than 150 mm.

5. A telescopic variable diameter mold according to claim 1, characterized in that, Several telescopic positioning beams (8) are distributed at equal intervals.

6. A telescopic variable diameter mold according to claim 1, characterized in that, At least three telescopic positioning beams (8) shall be provided.

7. A telescopic variable diameter mold according to claim 1, characterized in that, At least three telescopic positioning beams (8) shall be provided.

8. A telescopic variable diameter mold according to claim 7, characterized in that, The telescopic positioning beams (8) are distributed at 120° intervals.

9. A telescopic variable diameter mold according to claim 1, characterized in that, A mold support (11) is connected to the telescopic control panel (9).

10. A telescopic variable diameter mold according to claim 9, characterized in that, The mold support (11) is a triangular three-dimensional structure.

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