Cooling structure of bellows mechanical forming die

Abstract

The utility model relates to the field of bellows processing, concretely relates to a cooling structure of bellows mechanical forming die, set up in the die, the front surface of die is provided with the accommodating groove, the inner wall of accommodating groove is provided with sealing assembly, the inner wall of die is provided with cooling groove, the upper surface of die is provided with connecting seat, the inner wall of connecting seat is installed with cooling pipe, sealing assembly includes sealing frame, sealing frame fixedly connected in the inner wall of accommodating groove near the front end opening position, the front surface of sealing frame is provided with closed groove, the inner wall of accommodating groove is connected with sliding frame, sliding frame is fixedly connected with sealing block that is matched with closed groove near sealing frame one end, through being provided with sealing assembly, when two groups of dies mutually adhere, the sealing assembly of two groups of dies will mutually adhere, at this moment, the pressing block in one group of sealing assembly will mutually extrude with the extruding block in another group of sealing assembly.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe processing, specifically to a cooling structure for a corrugated pipe mechanical forming mold. Background Technology

[0002] Corrugated pipe mechanical forming mold is a key tool used to manufacture pipes with periodic corrugated structures. Its core function is to process flat or tubular blanks into corrugated pipes of a specific shape through physical deformation or material filling. Since a large amount of heat accumulates inside the mold during the processing, a cooling structure is needed to cool it in order to prevent damage to the mold.

[0003] Since the corrugated mold itself consists of two sets of molds, the existing technology will set cooling grooves in each independent set of molds to achieve the cooling of the mold. Although this can achieve the cooling effect, for the part where the two sets of molds are in contact, the thickness of this part after the two molds are in contact is relatively large. Therefore, the cooling grooves on both sides cannot effectively cool this part. This will lead to uneven heat distribution throughout the mold, thus affecting the normal molding of the product.

[0004] Therefore, it is necessary to invent a cooling structure for a corrugated pipe mechanical forming mold to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a cooling structure for a corrugated pipe mechanical forming mold. "By setting a sealing component, the internal cooling grooves of the two sets of molds can be interconnected when they are fitted together," which can solve the problem in the prior art that "the fitting part of the mold is difficult to cool effectively, affecting the normal forming of the product."

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cooling structure for a corrugated pipe mechanical forming mold, disposed in the mold, wherein the front surface of the mold is provided with a receiving groove, the inner wall of the receiving groove is provided with a sealing component, the inner wall of the mold is provided with a cooling groove, the upper surface of the mold is provided with a connecting seat, and the inner wall of the connecting seat is installed with a cooling pipe; the sealing component includes a sealing frame, the sealing frame is fixedly connected to the inner wall of the receiving groove near the front opening, the front surface of the sealing frame is provided with a closing groove, the inner wall of the receiving groove is slidably connected with a sliding frame, and a sealing block adapted to the closing groove is fixedly connected to one end of the sliding frame near the sealing frame.

[0007] Preferably, the sealing assembly further includes a slider, and the inner wall of the receiving groove is provided with a sliding groove, and the slider is slidably connected to the inner wall of the sliding groove.

[0008] Preferably, the slider and the groove are elastically connected by a closed spring.

[0009] Preferably, a pressing block is fixedly connected to the front surface of the sliding frame, and a guide groove is provided on the front surface of the sealing frame. The pressing block passes through the guide groove and is piston-connected to the inner wall of the guide groove.

[0010] Preferably, the sealing assembly is provided in two sets, and the two sets of sealing assemblies are symmetrically arranged with the center line of the mold as the axis of symmetry.

[0011] Preferably, the difference between the two sets of sealing components is that one set of sealing components is provided with a squeezing block instead of a pressing block, the end of the pressing block away from the mold is set to be arc-shaped, and the end of the squeezing block away from the mold is provided with an arc-shaped groove adapted to the pressing block.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This utility model is equipped with a sealing component. When the two sets of molds are fitted together, the sealing components of the two sets of molds will also fit together. At this time, the pressing block in one set of sealing components will press against the squeezing block in the other set of sealing components, thus forcing the sealing blocks in both sets of sealing components to separate from the sealing groove. In this way, the cooling grooves in the two sets of molds will be connected to form a complete cooling channel. At this time, the coolant can achieve comprehensive cooling, ensuring that the temperature difference in the mold is reduced, thereby reducing the impact of temperature difference on the quality of the finished product. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model; Figure 2 This is a three-dimensional structural diagram of the mold in this utility model; Figure 3 This is a three-dimensional cross-sectional view of the mold in this utility model; Figure 4 This is a three-dimensional structural disassembly diagram of the sealing component in this utility model; Figure 5 This is a three-dimensional structural diagram of the pressing block and the squeezing block in this utility model.

[0015] Legend: 1. Mold; 2. Sealing assembly; 21. Sealing frame; 22. Sliding frame; 23. Sealing block; 24. Pressing block; 25. Slider; 26. Extrusion block; 27. Slide groove; 28. Closing spring; 29. ​​Guide groove; 210. Closing groove; 3. Cooling groove; 4. Connecting seat; 5. Cooling pipe; 6. Receiving groove. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] This utility model provides, for example Figure 1 - Figure 5The cooling structure of a corrugated pipe mechanical forming mold shown is provided in mold 1. A receiving groove 6 is provided on the front surface of mold 1. This receiving groove 6 is a dedicated installation space for the sealing component 2. Its internal contour precisely matches the shape of the sealing component 2, allowing the sealing component 2 to be stably embedded without shaking, laying the foundation for subsequent sealing function. The sealing component 2 is provided on the inner wall of the receiving groove 6. The sealing component 2 is the core structure controlling the opening and closing of the cooling groove 3. Its sealing state directly determines whether the coolant leaks, and also affects whether the cooling groove 3 can be smoothly connected after the two sets of molds 1 are attached, thus affecting the overall cooling effect of the mold. The cooling groove 3 is provided on the inner wall of mold 1, and the cooling groove 3 can cover the working fluid of mold 1. The main heat-generating areas, especially the thick-walled areas where the two sets of molds are in contact, which are difficult to reach with traditional cooling structures, are provided with dedicated coolant flow channels. A connecting seat 4 is provided on the upper surface of mold 1. The connecting seat 4 is fixed to the mold 1 body using integrated machining or a high-strength connection method. Its structural strength must withstand the pressure during coolant delivery and must also be compatible with the interface size of the cooling pipe 5 to ensure connection stability. A cooling pipe 5 is installed on the inner wall of the connecting seat 4. One end of the cooling pipe 5 is connected to an external coolant supply device, and the other end is connected to the cooling tank 3. This allows for the continuous delivery of low-temperature coolant to the cooling tank 3 and the discharge of coolant after absorbing heat from the mold, forming a complete cooling circulation loop. The sealing assembly 2 includes... The sealing frame 21 is the fixed frame of the sealing assembly 2. It not only provides the foundation for the sealing groove 210, but also limits the sliding range of the sliding frame 22, preventing the sliding frame 22 from detaching from the receiving groove 6 due to excessive sliding. The sealing frame 21 is fixedly connected to the inner wall of the receiving groove 6 near the front opening. The sealing frame 21 is usually connected to the receiving groove 6 by welding. The position near the front opening allows the sealing assembly 2 to interact quickly when the two sets of molds 1 are in contact, shortening the connection response time of the cooling groove 3. The front surface of the sealing frame 21 is provided with a sealing groove 210. The depth and width of the sealing groove 210 are perfectly matched with the sealing block 23. When the sealing block 23 is embedded in it, a tight seal can be formed. The sealing structure blocks the connection between the cooling tank 3 and the outside, preventing coolant leakage when the mold is not in contact. The inner wall of the receiving tank 6 is slidably connected to a sliding frame 22, which can slide back and forth along the horizontal direction of the inner wall of the receiving tank 6. Its sliding action is controlled by an external force. By sliding, the sealing block 23 can move closer to or away from the closed tank 210, thereby realizing the switching of the cooling tank 3 on and off. The end of the sliding frame 22 near the sealing frame 21 is fixedly connected to a sealing block 23 that is compatible with the closed tank 210. The sealing block 23 is made of elastic sealing material that is resistant to coolant corrosion and high temperature. Even in long-term contact with coolant and high temperature environment of mold, it can maintain good sealing performance and ensure that there is no leakage when the cooling tank 3 is closed.

[0018] like Figure 2 - Figure 4As shown, the sealing assembly 2 also includes a slider 25, which is an integral structure with the sliding frame 22. Its main function is to provide guidance for the sliding of the sliding frame 22, prevent the sliding frame 22 from deviating during movement, and ensure that the sealing block 23 can be accurately aligned with the sealing groove 210. The inner wall of the receiving groove 6 is provided with a sliding groove 27, which is finely polished to reduce the frictional resistance when the slider 25 slides, making the movement of the sliding frame 22 smoother and avoiding the impact of jamming on the operating efficiency of the sealing assembly 2. The slider 25 is slidably connected to the inner wall of the sliding groove 27. The slider 25 and the sliding groove 27 are fitted with a small gap, which is controlled between 0.02 and 0.05 mm. This ensures that the slider 25 slides flexibly and prevents the slider 25 from shaking in the sliding groove 27, thus ensuring the stability of the sealing assembly 2 during operation. The slider 25 and the groove 27 are elastically connected by a closing spring 28. The closing spring 28 is in a compressed state in its natural state, which will apply a spring force to the slider 25 toward the sealing frame 21, causing the sliding frame 22 and the sealing block 23 to move toward the closing groove 210, so that the sealing block 23 is automatically embedded into the closing groove 210, thereby realizing the automatic sealing of the cooling groove 3.

[0019] like Figure 2 - Figure 4 As shown, a pressing block 24 is fixedly connected to the front surface of the sliding frame 22. The pressing block 24 is the force-bearing component of the sealing assembly 2. When the two sets of molds 1 are in contact with each other, the pressing blocks 24 and the extrusion blocks 26 of the two sets of sealing assemblies 2 will come into contact with each other and generate extrusion. The pressing block 24 transmits the extrusion force to the sliding frame 22, driving the sliding frame 22 to slide. The front surface of the sealing frame 21 is provided with a guide groove 29. The axis of the guide groove 29 is consistent with the sliding direction of the sliding frame 22. Its inner wall is tightly fitted with the outer wall of the pressing block 24. It can not only guide the pressing block 24 to move in a fixed direction, but also prevent the coolant in the cooling tank 3 from leaking through the guide groove 29. The pressing block 24 passes through and is piston-connected to the inner wall of the guide groove 29. This piston connection method forms a dynamic seal between the pressing block 24 and the guide groove 29. Even if the pressing block 24 moves back and forth in the guide groove 29, it can always maintain a sealed state, effectively preventing the coolant from seeping out from the gap between the two.

[0020] like Figure 3 - Figure 5As shown, there are two sets of sealing components 2. These two sets are designed to correspond to the upper and lower mating areas of the mold 1, ensuring that the cooling grooves 3 on both sides are simultaneously connected when the two sets of mold 1 are mated. This prevents excessively high local temperatures in the mold due to insufficient cooling on one side, which could affect the corrugated pipe forming quality. The two sets of sealing components 2 are symmetrically arranged with the center line of the mold 1 as the axis of symmetry. This symmetrical arrangement ensures that the force and movement of the sealing components 2 on both sides are synchronized when the two sets of mold 1 are mated, preventing the mold 1 from shifting due to uneven force on one side, ensuring the mold mating accuracy, and simultaneously ensuring that the coolant flow rate on both sides of the cooling groove 3 is consistent. The difference between the two sets of sealing components 2 is that one set of sealing components 2 has a pressing block 26 instead of a pressing block 24. This differentiated design allows the two sets of sealing components 2 to trigger each other's actions when mated. The arc-shaped end of the 24 cooperates with the arc-shaped groove of the extrusion block 26, which can convert the vertical force of the two sets of molds into the horizontal force that pushes the sliding frame 22 to slide, thereby realizing the separation of the sealing block 23 and the sealing groove 210. The end of the pressing block 24 away from the mold 1 is set to be arc-shaped. The arc-shaped design can reduce the impact and friction when the pressing block 24 and the extrusion block 26 come into contact, avoid damage caused by rigid collision, and at the same time make the extrusion force more evenly transmitted, preventing the pressing block 24 from breaking due to excessive local stress. The end of the extrusion block 26 away from the mold 1 is provided with an arc-shaped groove that matches the pressing block 24. The arc-shaped groove is completely fitted with the arc-shaped end of the pressing block 24, which can increase the contact area between the two, make the extrusion force transmission more stable, and at the same time prevent the pressing block 24 from shifting during the extrusion process, ensuring that the sealing component 2 can accurately complete the action and realize the connection of the cooling groove 3.

[0021] The working principle of this utility model is as follows: Before the corrugated pipe mechanical forming mold operates, the external coolant supply device delivers low-temperature coolant to the cooling groove 3 on the inner wall of the mold 1 through the cooling pipe 5 in the connecting seat 4 on the upper surface of the mold 1. At this time, the sealing component 2 is in an initial sealing state. The slider 25 of the sealing component 2 is subjected to the elastic force of the closing spring 28 in the sliding groove 27, which drives the sliding frame 22 to move towards the sealing frame 21, so that the sealing block 23 on the sliding frame 22 is tightly embedded in the sealing groove 210 on the front surface of the sealing frame 21, blocking the connection between the cooling groove 3 and the outside and preventing coolant leakage. When the two sets of molds 1 are fitted together to perform corrugated pipe forming, the sealing components 2 on the two sets of molds 1 contact synchronously. The pressing block 24 of one set of sealing components 2 interacts with the squeezing block 26 of the other set of sealing components 2. The arc-shaped end of the pressing block 24 away from the mold 1 is embedded in the arc-shaped groove of the squeezing block 26. As the two sets of molds... 1. As the bonding pressure increases, the pressing block 24 slides along the guide groove 29 of the sealing frame 21 into the receiving groove 6, causing the sliding frame 22 to move synchronously. The sliding frame 22 then causes the slider 25 to slide in the sliding groove 27 and stretch the sealing spring 28, thereby causing the sealing block 23 to detach from the sealing groove 210. At this time, the cooling grooves 3 of the two sets of molds 1 are interconnected to form a complete cooling channel. The coolant circulates in the interconnected cooling grooves 3, which can not only cool the mold 1 as a whole, but also specifically cool the thick-walled parts of the two sets of molds 1, avoiding uneven heat distribution inside the mold 1. When the corrugated pipe forming process is completed and the two sets of molds 1 are separated, the sealing spring 28 restores its elastic deformation, pulls the slider 25 to reset, and the slider 25 drives the sliding frame 22 and the pressing block 24 to reset. The sealing block 23 is embedded into the sealing groove 210 again, the cooling groove 3 is resealed, and the external supply device stops supplying coolant, completing one cooling cycle.

[0022] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cooling structure for a corrugated pipe mechanical forming mold, disposed in the mold (1), characterized in that: The front surface of the mold (1) is provided with a receiving groove (6), the inner wall of the receiving groove (6) is provided with a sealing component (2), the inner wall of the mold (1) is provided with a cooling groove (3), the upper surface of the mold (1) is provided with a connecting seat (4), and the inner wall of the connecting seat (4) is equipped with a cooling pipe (5). The sealing assembly (2) includes a sealing frame (21), which is fixedly connected to the inner wall of the receiving groove (6) near the front opening. The front surface of the sealing frame (21) is provided with a sealing groove (210). A sliding frame (22) is slidably connected to the inner wall of the receiving groove (6). A sealing block (23) that matches the sealing groove (210) is fixedly connected to one end of the sliding frame (22) near the sealing frame (21).

2. A cooling structure for a bellows mechanical forming die according to claim 1, characterized in that: The sealing assembly (2) also includes a slider (25), and the inner wall of the receiving groove (6) is provided with a groove (27), and the slider (25) is slidably connected to the inner wall of the groove (27).

3. A cooling structure for a bellows mechanical forming die according to claim 2, characterized in that: The slider (25) and the groove (27) are elastically connected by a closing spring (28).

4. The cooling structure of a bellows mechanical forming die according to claim 1, characterized by: A pressing block (24) is fixedly connected to the front surface of the sliding frame (22), and a guide groove (29) is provided on the front surface of the sealing frame (21). The pressing block (24) passes through and is piston-connected to the inner wall of the guide groove (29).

5. A cooling structure for a bellows mechanical forming die according to claim 4, characterized in that: The sealing assembly (2) is provided in two sets, and the two sets of sealing assemblies (2) are symmetrically arranged with the center line of the mold (1) as the axis of symmetry.

6. A cooling structure for a bellows mechanical forming die according to claim 5, characterized in that: The difference between the two sets of sealing components (2) is that one set of sealing components (2) is provided with a squeezing block (26) instead of a pressing block (24), the end of the pressing block (24) away from the mold (1) is set as an arc shape, and the end of the squeezing block (26) away from the mold (1) is provided with an arc-shaped groove that matches the pressing block (24).

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