Automatic diameter adjusting die assembly of spiral duct type air conditioner

By installing a diameter adjustment assembly consisting of a cylinder and a pressure pad on the spiral duct machine, the problem of frequent manual adjustment of the mold assembly in the existing technology is solved, realizing automatic diameter adjustment, reducing labor intensity and improving production efficiency.

CN223996961UActive Publication Date: 2026-03-17XIAMEN JINSHUFENG VENTILATION EQUIP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The existing spiral duct machine diameter adjustment mold assembly requires frequent manual adjustment, which is inconvenient to operate and results in high labor intensity.

Method used

The diameter adjustment assembly consists of a cylinder and a pressure pad. The cylinder drives the pressure pad to press against the sides and top of the spiral duct, thereby achieving automatic diameter adjustment and reducing manual adjustment.

Benefits of technology

Automatic diameter adjustment was achieved, reducing manual labor intensity and improving production efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223996961U_ABST
    Figure CN223996961U_ABST
Patent Text Reader

Abstract

The utility model discloses an automatic diameter adjusting die assembly of a spiral duct machine, which belongs to the technical field of spiral duct production and comprises a die plate, a main guide rail, a first secondary guide rail and a second secondary guide rail. The first diameter adjusting assemblies and the second diameter adjusting assemblies are installed on one side of the first secondary track, one side of the second secondary track and one side of the main track correspondingly, according to the size of the spiral air pipe, the second diameter adjusting assemblies are pulled downwards to the position close to the spiral air pipe firstly, and then the two first diameter adjusting assemblies are moved and pulled to be close to the two sides of the spiral air pipe; then the first fastening button and the second fastening button are screwed in sequence to limit the first diameter adjusting assembly and the second diameter adjusting assembly, finally, the first air cylinders drive the first pressing pads to abut against the two sides of the spiral air pipe, the second air cylinders drive the second pressing pads to abut against the upper portion of the spiral air pipe, and the air cylinder diameter adjusting mode replaces transmission manual diameter adjusting; the diameter can be automatically adjusted according to the size of the spiral duct, the labor intensity of workers is low, and the mold assembly does not need to be manually and frequently adjusted.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of spiral duct production technology, and more specifically, to an automatic diameter adjustment mold assembly for a spiral duct machine. Background Technology

[0002] A spiral duct machine is a specialized piece of machinery used to manufacture spiral ducts (typically used in HVAC systems, ventilation systems, etc.). This machine forms a continuous spiral duct by rolling and simultaneously welding sheet metal (such as galvanized steel or stainless steel). The diameter adjustment die assembly is one of the key pieces of equipment used in the production of spiral ducts. The main function of this equipment is to adjust the diameter of the spiral duct during the manufacturing process to ensure that the produced ducts meet design specifications and requirements.

[0003] Based on the above, the inventors have discovered that most existing diameter adjustment mold assemblies currently rely on manual adjustment of the mold. While this method can achieve the diameter adjustment effect, it is inconvenient to operate and requires frequent manual adjustment of the mold assembly. Therefore, in view of this, the inventors have researched and improved the existing structure to provide an automatic diameter adjustment mold assembly for spiral duct machines, aiming to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide an automatic diameter adjustment mold assembly for spiral duct machines. This assembly can prevent the need for manual adjustment of the mold. Although this method can achieve the diameter adjustment effect, it is inconvenient to operate and requires frequent manual adjustment of the mold assembly.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] An automatic diameter adjustment mold assembly for a spiral duct machine includes a template, a main guide rail, a second secondary guide rail, and a third secondary guide rail. The main guide rail is fixedly connected to the template via a second fixing column. The second secondary guide rails are fixedly connected to the template via a first fixing column. A diameter adjustment component is installed on one side of the main guide rail, and a diameter adjustment component is installed on one side of each of the second secondary guide rails. A fixing plate is fixedly connected to the back of the template. A support leg is installed below the fixing plate, and an mounting plate is fixedly connected below the support leg. A sliding groove is formed on the inner side of the main guide rail, and a threaded groove is formed inside the sliding groove. Sliding grooves are formed on the inner sides of the second secondary guide rails, and threaded grooves are formed inside the sliding grooves.

[0009] Furthermore, the secondary guide rail one and the secondary guide rail two are symmetrically arranged on both sides of the main guide rail, and both the secondary guide rail one and the secondary guide rail two are made of stainless steel.

[0010] Furthermore, the adjusting assembly is composed of a mounting base, a handle, an L-shaped seat, a cylinder, a pressure pad, a fastening button, and a connecting plate. The mounting base is slidably connected to the slide groove, the handle is fixedly connected to the side of the mounting base, one side of the mounting base is bolted to the L-shaped seat through the connecting plate, the cylinder is mounted on one side of the L-shaped seat, and the output end of the cylinder is fitted with a pressure pad. The fastening button passes through the mounting base and is threadedly connected to the threaded groove.

[0011] Furthermore, the diameter adjustment component is provided in two sets, and the structure of each set of diameter adjustment components is identical.

[0012] Furthermore, the second diameter adjustment component is composed of a second mounting base, a second fastening button, a second cylinder, a second pressure pad, and a second handle. The second mounting base is slidably connected to the first slide groove, and the second cylinder is installed on one side of the second mounting base. The second pressure pad is installed at the output end of the second cylinder. The second handle is fixedly connected to the side of the second mounting base. The second fastening button passes through the second mounting base and is threadedly connected to the first threaded groove.

[0013] Furthermore, the threaded groove is provided in multiple sets, which are equally distributed inside the slide groove.

[0014] Furthermore, the second threaded groove is provided in multiple sets, which are equidistantly distributed inside the second sliding groove.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] This solution involves installing adjusting components one and two on one side of secondary rail one, secondary rail two, and the main rail, respectively. Based on the spiral duct size, adjusting component two is first pulled down to a position close to the spiral duct. Then, adjusting components one are moved and pulled closer to both sides of the spiral duct. Next, fastening buttons one and two are turned sequentially to limit the positions of adjusting components one and two. Finally, cylinder one drives pressure pad one to press against both sides of the spiral duct, while cylinder two drives pressure pad two to press against the top of the spiral duct. This cylinder-based adjusting method replaces manual adjusting via transmission, allowing for automatic adjusting based on the spiral duct size. It reduces manual labor intensity and eliminates the need for frequent manual adjustments of the mold components. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2This is a schematic diagram of the planar aspect of this utility model;

[0020] Figure 3 This is a schematic diagram of the back of the present invention;

[0021] Figure 4 This is a schematic diagram of the main track of this utility model;

[0022] Figure 5 This is a schematic diagram of the secondary track of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Template; 2. Main guide rail; 3. Secondary guide rail one; 31. Fixed column one; 4. Secondary guide rail two; 5. Diameter adjustment assembly one; 51. Mounting seat one; 52. Handle one; 53. L-shaped seat; 54. Cylinder one; 55. Pressure pad one; 56. Fastening button one; 57. Connecting plate; 6. Diameter adjustment assembly two; 61. Mounting seat two; 62. Fastening button two; 63. Cylinder two; 64. Pressure pad two; 65. Handle two; 7. Fixed plate; 8. Support leg; 9. Mounting plate; 10. Slide groove one; 11. Slide groove two; 12. Threaded groove one; 13. Threaded groove two. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Example:

[0027] Please see Figure 1-5An automatic diameter adjustment mold assembly for a spiral duct machine includes a template 1, a main guide rail 2, a first secondary guide rail 3, and a second secondary guide rail 4. The main guide rail 2 is fixedly connected to the template 1 via a second fixing column, and is used for moving the second diameter adjustment assembly 6. The first secondary guide rail 3 and the second secondary guide rail 4 are fixedly connected to the template 1 via a first fixing column 31, and are used for moving the first diameter adjustment assembly 5. The first diameter adjustment assembly 5 is installed on one side of the main guide rail 2, and is used to adjust the distance on the side according to the size of the spiral duct. The second diameter adjustment assembly 6 is installed on one side of the first secondary guide rail 3 and the second secondary guide rail 4, and is used to adjust the distance above according to the size of the spiral duct. A fixing plate 7 is fixedly connected to the back of the template 1, a support leg 8 is installed below the fixing plate 7, and an mounting plate 9 is fixedly connected below the support leg 8. A sliding groove 10 is opened on the inner side of the main guide rail 2, and the sliding groove 10 is used to assist the second diameter adjustment assembly 6 in moving up and down. The slide groove 10 has a threaded groove 12 inside. The inner sides of the secondary guide rail 3 and the secondary guide rail 4 have slide grooves 11, which are used to assist the diameter adjustment assembly 5 in moving left and right. The slide groove 11 has a threaded groove 13 inside.

[0028] See Figure 1 and Figure 2 Secondary guide rail 3 and secondary guide rail 4 are symmetrically arranged on both sides of the main guide rail 2, and both secondary guide rail 3 and secondary guide rail 4 are made of stainless steel. By using stainless steel to make secondary guide rail 3 and secondary guide rail 4, the service life of the guide rail can be extended.

[0029] See Figure 1 and Figure 5 The diameter adjustment component 5 is composed of a mounting base 51, a handle 52, an L-shaped seat 53, a cylinder 54, a pressure pad 55, a fastening button 56, and a connecting plate 57. The mounting base 51 is slidably connected to the slide groove 11. The handle 52 is fixedly connected to the side of the mounting base 51. One side of the mounting base 51 is bolted to the L-shaped seat 53 through the connecting plate 57. The cylinder 54 is installed on one side of the L-shaped seat 53, and the output end of the cylinder 54 is equipped with a pressure pad 55. The fastening button 56 passes through the mounting base 51 and is threadedly connected to the threaded groove 13. By setting the cylinder 54 and the pressure pad 55, the two sides of the spiral duct can be pressed against each other.

[0030] See Figure 1 and Figure 2 The diameter adjustment component 5 is provided in two sets, and the structure of each set of diameter adjustment component 5 is the same. By setting the diameter adjustment component 5, the diameter can be adjusted according to the size of the spiral duct.

[0031] See Figure 1 and Figure 4The adjusting component 26 is composed of mounting base 261, fastening button 262, cylinder 263, pressure pad 264 and handle 265. Mounting base 261 is slidably connected to slide groove 10, and cylinder 263 is installed on one side of mounting base 261. Pressure pad 264 is installed at the output end of cylinder 263. Handle 265 is fixedly connected to the side of mounting base 261. Fastening button 262 passes through mounting base 261 and is threadedly connected to threaded groove 12. By setting cylinder 263 and pressure pad 264, it can hold the top of the spiral duct.

[0032] See Figure 1 and Figure 2 The threaded groove 12 is provided in multiple sets, which are equally distributed inside the slide groove 10. By setting the threaded groove 12, it can cooperate with the fastening button 2 62 to limit the diameter adjustment component 2 6.

[0033] See Figure 1 and Figure 2 The threaded groove 13 is provided in multiple sets, which are equally distributed inside the slide groove 11. By setting the threaded groove 13, it can cooperate with the fastening button 56 to limit the diameter adjustment component 5.

[0034] In use: According to the size of the spiral duct, first pull down the adjusting component 26 to a position close to the spiral duct. Then, pull the two adjusting components 15 in sequence to bring them close to both sides of the spiral duct. Then, turn the fastening knobs 156 and 262 in sequence to limit the adjusting components 15 and 26. Finally, the two cylinders 154 drive the pressure pads 155 to press against both sides of the spiral duct, while the cylinder 263 drives the pressure pads 264 to press against the top of the spiral duct. The cylinder adjusting method replaces the manual adjusting method of the transmission. It can automatically adjust the diameter according to the size of the spiral duct, with low manual labor intensity and no need for frequent manual adjustment of the mold components.

[0035] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 according to the specific circumstances.

[0037] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. An automatic diameter adjustment mold assembly for a spiral duct machine, comprising a template (1), a main guide rail (2), a first secondary guide rail (3), and a second secondary guide rail (4), wherein the main guide rail (2) is fixedly connected to the template (1) via a second fixing post, and the first secondary guide rail (3) and the second secondary guide rail (4) are fixedly connected to the template (1) via a first fixing post (31), characterized in that: One side of the main guide rail (2) is provided with the diameter adjusting assembly one (5), one side of the secondary guide rail one (3) and the secondary guide rail two (4) is provided with the diameter adjusting assembly two (6), the back of the formwork (1) is fixedly connected with the fixed plate (7), the lower side of the fixed plate (7) is provided with the supporting leg (8), the lower side of the supporting leg (8) is fixedly connected with the mounting plate (9), the inner side of the main guide rail (2) is provided with the sliding groove one (10), the inner side of the sliding groove one (10) is provided with the thread groove one (12), the inner side of the secondary guide rail one (3) and the secondary guide rail two (4) is respectively provided with the sliding groove two (11), the inner side of the sliding groove two (11) is provided with the thread groove two (13).

2. An automatic sizing die assembly for a spiral duct machine as defined in claim 1, wherein: The secondary guide rail one (3) and the secondary guide rail two (4) are symmetrically arranged on the two sides of the main guide rail (2), and the secondary guide rail one (3) and the secondary guide rail two (4) are made of stainless steel material.

3. An automatic sizing die assembly for a spiral duct machine as defined in claim 1 wherein: The diameter adjusting assembly one (5) is composed of the mounting seat one (51), the handle one (52), the L-shaped seat (53), the cylinder one (54), the pressing pad one (55), the fastening knob one (56) and the connecting plate (57), the mounting seat one (51) is slidably connected with the sliding groove two (11), the handle one (52) is fixedly connected with the side surface of the mounting seat one (51), one side of the mounting seat one (51) is boltedly connected with the L-shaped seat (53) through the connecting plate (57), the cylinder one (54) is mounted on one side of the L-shaped seat (53), and the output end of the cylinder one (54) is provided with the pressing pad one (55), and the fastening knob one (56) is threadedly connected with the thread groove two (13) penetrating the mounting seat one (51).

4. An automatic sizing die assembly for a spiral duct machine as defined in claim 1, wherein: The diameter adjusting assembly one (5) is provided with two groups, and the structure of each group of the diameter adjusting assembly one (5) is consistent.

5. An automatic sizing die assembly for a spiral duct machine as defined in claim 1, wherein: The diameter adjusting assembly two (6) is composed of the mounting seat two (61), the fastening knob two (62), the cylinder two (63), the pressing pad two (64) and the handle two (65), the mounting seat two (61) is slidably connected with the sliding groove one (10), one side of the mounting seat two (61) is provided with the cylinder two (63), the output end of the cylinder two (63) is provided with the pressing pad two (64), the side surface of the mounting seat two (61) is fixedly connected with the handle two (65), and the fastening knob two (62) is threadedly connected with the thread groove one (12) penetrating the mounting seat two (61).

6. An automatic sizing die assembly for a spiral duct machine as defined in claim 1, wherein: The thread groove one (12) is provided with multiple groups and is equidistantly distributed in the inner side of the sliding groove one (10).

7. An automatic sizing die assembly for a spiral duct machine as defined in claim 1, wherein: The thread groove two (13) is provided with multiple groups and is equidistantly distributed in the inner side of the sliding groove two (11).