A tool for cooling a pipe flaring die

Abstract

This utility model discloses a tooling for a cooling device of a spiral wound pipe flaring mold, relating to the field of pipe forming mold technology. It includes a lower mold, an upper mold, a mold core, and a forming mold. The lower and upper molds are symmetrically arranged vertically and are closed by external pneumatic pressure, forming a hollow mold cavity in the middle. The mold core is located at the center of the mold cavity, and a forming cavity for forming the molded part is formed between the mold core and the inner walls of the upper and lower molds. The forming mold is symmetrically divided into upper and lower parts, which are respectively fixedly installed on one side of the lower and upper molds. The spiral flow channel groove of the ring in this utility model extends the cooling water path and enhances heat exchange efficiency. The positioning pin connecting the lower mold and the positioning hole connecting the upper mold cooperate to avoid misalignment. The external pneumatic component drives the lower and upper molds to close, reducing manual intervention.

Description

Technical Field

[0001] This utility model relates to the field of pipe forming mold technology, and in particular to a tooling for a cooling device for a spiral pipe flaring mold. Background Technology

[0002] In the pipe manufacturing industry, the performance requirements of the mold cooling system for the spiral wound pipe flaring process are becoming increasingly stringent. Traditional cooling technologies are no longer sufficient to meet the dual demands of modern industry for production efficiency and product quality. Currently, the mainstream cooling solution for spiral wound pipe flaring molds mainly adopts a straight-through water-cooling channel design, where the cooling medium circulates through pre-set pipes for heat exchange. This technical approach has been used since the 1980s, and although improvements have been made in pipe material optimization and flow control accuracy, the basic structure has not undergone fundamental changes. Industry data shows that the average cooling cycle of molds using traditional cooling systems is 120-180 seconds, and the product qualification rate has long hovered between 85% and 90%. Existing flaring devices suffer from low cooling water flow efficiency, poor cooling effect, low flaring efficiency, and are prone to appearance and other quality problems during flaring. Utility Model Content

[0003] This utility model provides a tooling for a cooling device for a spiral wound tube flaring mold, which can solve the problems of low water circulation efficiency and poor cooling effect in existing spiral wound tube flaring mold cooling devices.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A tooling for a cooling device for a spiral wound tube flaring mold includes a lower mold, an upper mold, a mold core, and a forming mold. The lower mold and the upper mold are symmetrically arranged vertically and are closed by external pneumatic pressure to form a hollow mold cavity in the middle. The mold core is located at the center of the mold cavity. The mold core and the inner walls of the upper mold and the lower mold form a forming cavity for forming the molded part. The forming mold is symmetrically divided into upper and lower parts and is fixedly installed on one side of the lower mold and the upper mold, respectively.

[0006] Preferably, the lower die includes a lower template fixedly mounted on an external pneumatic component, a lower die base is fixedly connected to the upper end of the lower template, and connecting lower dies are fixedly provided on both sides of the upper end of the lower die base.

[0007] Preferably, the upper mold includes an upper template fixedly mounted on an external pneumatic component, an upper mold base is fixedly connected to the lower end of the upper template, and connecting upper molds are fixedly provided on both sides of the lower end of the upper mold base.

[0008] Preferably, both the upper end of the connecting lower mold and the lower end of the connecting upper mold are provided with semi-circular holes, and the upper and lower semi-circular holes form a complete injection hole when the lower mold and the upper mold are closed.

[0009] Preferably, the upper end of the connecting lower mold is provided with a plurality of positioning pins, and the lower end of the connecting upper mold is provided with positioning holes that cooperate with the positioning pins.

[0010] Preferably, the molding die includes a connecting flange that is fixedly mounted on the lower or upper mold by bolts, and a molding sleeve that matches the shape of the molded part is fixedly provided on the inner circumference of the connecting flange.

[0011] Preferably, the mold core includes an inner sleeve, and sleeve sealing plates are fixedly provided on both sides of the outer periphery of the inner sleeve. An outer sleeve is fixedly connected to the outer periphery of the sleeve sealing plates. A connecting ring plate is fixedly connected to both sides of the outer periphery of the outer sleeve. A forming sleeve is fixedly connected to the outer periphery of the connecting ring plate. A water channel ring is provided between the outer sleeve and the forming sleeve.

[0012] Preferably, a connecting sleeve is fixedly provided on the side of the outer sleeve near the forming mold, and the connecting sleeve extends out of the forming mold and is fixedly connected to the external telescopic arm.

[0013] Preferably, a water inlet is provided on the sleeve sealing plate on the side away from the molding mold, and a drain outlet is provided on the connecting ring plate on the side away from the molding mold. A through hole connected to the water ring is provided on the side wall of the outer sleeve away from the water inlet.

[0014] Preferably, the water ring is provided with a spiral flow channel groove, through which cooling water circulates in one direction.

[0015] The beneficial effects of this utility model are:

[0016] (1) The spiral flow channel groove of the water ring extends the cooling water path and enhances the heat exchange efficiency; the positioning pin connecting the lower mold and the positioning hole connecting the upper mold cooperate to avoid misalignment; the external pneumatic component drives the lower mold and the upper mold to close, reducing manual intervention; the outer sleeve is fixed to the external telescopic arm through the connecting sleeve, which facilitates quick disassembly and assembly of the mold core; the cooling system reduces the working temperature of the mold and reduces thermal deformation and wear.

[0017] (2) By welding and covering the core mold, the forming ring can be disassembled, which facilitates regular cleaning of scale and other debris and improves the service life of the mold. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a tooling for a cooling device of a spiral wound tube flaring mold according to the present invention;

[0020] Figure 2 This is an isometric structural schematic diagram of a tooling for a cooling device of a spiral wound tube flaring mold according to the present invention;

[0021] Figure 3 This is a schematic diagram of the main structure of a tooling for a cooling device for a spiral wound tube flaring mold according to the present invention;

[0022] Figure 4 This is a utility model Figure 3 A schematic diagram of the cross-sectional structure along the AA direction.

[0023] Explanation of reference numerals in the attached figures:

[0024] 10. Lower mold; 11. Lower template; 12. Lower mold base; 13. Connecting lower mold; 20. Upper mold; 21. Upper template; 22. Upper mold base; 23. Connecting upper mold; 30. Mold core; 31. Inner sleeve; 32. Outer sleeve; 33. Connecting sleeve; 34. Sleeve sealing plate; 35. Connecting ring plate; 36. Molding sleeve; 37. Water channel ring; 38. Water inlet; 39. Drain outlet; 40. Molding mold; 41. Connecting flange; 42. Molding sleeve; 50. Molded part; 100. Injection hole. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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 a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., 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 communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please see Figures 1-4 As shown, this utility model is a tooling for a cooling device for a spiral wound tube flaring mold, including a lower mold 10, an upper mold 20, a mold core 30, and a forming mold 40. The lower mold 10 and the upper mold 20 are symmetrically arranged vertically and are closed by external pneumatic pressure, forming a hollow mold cavity in the middle. The mold core 30 is located at the center of the mold cavity. The mold core 30 and the inner walls of the upper mold 20 and the lower mold 10 form a forming cavity for forming the molded part 50. The forming mold 40 is symmetrically divided into upper and lower parts and is fixedly installed on one side of the lower mold 10 and the upper mold 20, respectively.

[0029] In an optional embodiment, the lower die 10 includes a lower template 11 fixedly mounted on an external pneumatic component, a lower die base 12 fixedly connected to the upper end of the lower template 11, and connecting lower dies 13 fixedly provided on both sides of the upper end of the lower die base 12.

[0030] The upper mold 20 includes an upper template 21 fixedly installed on an external pneumatic component. The lower end of the upper template 21 is fixedly connected to an upper mold base 22, and both sides of the lower end of the upper mold base 22 are fixedly provided with connecting upper molds 23.

[0031] It should be noted that the modular design of the lower die 10 and the upper die 20 facilitates repair and replacement, reducing maintenance costs.

[0032] In an optional embodiment, the upper end of the connecting lower mold 13 and the lower end of the connecting upper mold 23 are both provided with semi-circular holes, and the upper and lower semi-circular holes form a complete injection hole 100 when the lower mold 10 and the upper mold 20 are closed.

[0033] It should be noted that the injection hole 100 ensures that the molten material is filled evenly, avoiding material shortage defects.

[0034] In an optional embodiment, the upper end of the connecting lower mold 13 is provided with a plurality of positioning pins, and the lower end of the connecting upper mold 23 is provided with positioning holes that cooperate with the positioning pins.

[0035] It should be noted that the precise alignment of the locating pins and locating holes reduces mold closing errors and improves the dimensional accuracy of the molded parts by 50%.

[0036] In an optional embodiment, the molding die 40 includes a connecting flange 41 that is bolted to the lower die 10 or the upper die 20, and the inner circumference of the connecting flange 41 is fixedly provided with a molding sleeve 42 that matches the shape of the molded part 50.

[0037] It should be noted that the molding sleeve 42 facilitates demolding and reduces surface damage to the molded part 50.

[0038] In an optional embodiment, the mold core 30 includes an inner sleeve 31, with sleeve sealing plates 34 fixedly disposed on both sides of the outer periphery of the inner sleeve 31, an outer sleeve 32 fixedly connected to the outer periphery of the sleeve sealing plates 34, connecting ring plates 35 fixedly connected to both sides of the outer periphery of the outer sleeve 32, a forming sleeve 36 fixedly connected to the outer periphery of the connecting ring plates 35, and a water channel ring 37 disposed between the outer sleeve 32 and the forming sleeve 36.

[0039] It should be noted that the water ring 37 provides the structural foundation for the cooling system, ensuring that the cooling water circulation path is closed.

[0040] In an optional embodiment, a connecting sleeve 33 is fixedly provided on the side of the outer sleeve 32 near the molding mold 40, and the connecting sleeve 33 extends out of the molding mold 40 and is fixedly connected to the external telescopic arm.

[0041] It should be noted that the connecting sleeve 33 enables the mold core 30 to be positioned quickly, adapting to the needs of automated production lines.

[0042] In an optional embodiment, a water inlet 38 is provided on the sleeve sealing plate 34 on the side away from the molding mold 40, and a drain outlet 39 is provided on the connecting ring plate 35 on the side away from the molding mold 40. A through hole connected to the water channel ring 37 is provided on the side wall of the outer sleeve 32 away from the water inlet 38.

[0043] The water ring 37 is provided with a spiral flow channel groove, through which cooling water circulates in one direction.

[0044] It should be noted that the spiral flow channel increases the degree of turbulence, enhances heat transfer efficiency, and improves the cooling effect.

[0045] The working principle of this utility model is as follows: The lower mold 10 and the upper mold 20 are driven to close by an external pneumatic component. The positioning pin and the positioning hole cooperate to ensure precise alignment and form a hollow mold cavity. The injection material is injected into the mold cavity through the injection hole 100 formed after the mold is closed, and wraps the mold core 30 to form the prototype of the molded part 50.

[0046] Cooling water enters through the inlet 38 of the mold core 30, flows through the spiral flow channel groove in the water ring 37, circulates along a unidirectional path, and is discharged from the outlet 39. The spiral flow channel design creates turbulence in the cooling water, fully absorbing the heat of the mold and achieving simultaneous cooling of the inside and outside of the molded part.

[0047] After cooling, the pneumatic components drive the upper and lower molds to separate. The mold core 30 is connected to the external telescopic arm through the connecting sleeve 33, which pushes the molded part 50 out of the molding sleeve 42, completing the production cycle.

[0048] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A tooling for a cooling device of a spiral wound tube flaring die, characterized in that, It includes a lower mold (10), an upper mold (20), a mold core (30), and a forming mold (40). The lower mold (10) and the upper mold (20) are symmetrically arranged vertically and are closed by external pneumatic pressure to form a hollow mold cavity in the middle. The mold core (30) is located at the center of the mold cavity. The mold core (30) and the inner walls of the upper mold (20) and the lower mold (10) form a forming cavity for forming the molded part (50). The forming mold (40) is symmetrically divided into upper and lower parts and is fixedly installed on one side of the lower mold (10) and the upper mold (20), respectively.

2. The tooling for a cooling device of a spiral wound tube flaring mold according to claim 1, characterized in that, The lower die (10) includes a lower template (11) fixedly installed on an external pneumatic component. The upper end of the lower template (11) is fixedly connected to a lower die base (12), and both sides of the upper end of the lower die base (12) are fixedly provided with connecting lower dies (13).

3. The tooling for a cooling device of a spiral wound tube flaring mold according to claim 2, characterized in that, The upper mold (20) includes an upper template (21) fixedly installed on an external pneumatic component. The lower end of the upper template (21) is fixedly connected to an upper mold base (22). Both sides of the lower end of the upper mold base (22) are fixedly provided with connecting upper molds (23).

4. The tooling for a cooling device for a flaring die of a wound tube according to claim 3, characterized in that, The upper end of the connecting lower mold (13) and the lower end of the connecting upper mold (23) are both provided with semi-circular holes. The upper and lower semi-circular holes form a complete injection hole (100) when the lower mold (10) and the upper mold (20) are closed.

5. The tooling for a cooling device of a spiral wound tube flaring mold according to claim 3, characterized in that, The upper end of the connecting lower mold (13) is provided with a plurality of positioning pins, and the lower end of the connecting upper mold (23) is provided with positioning holes that cooperate with the positioning pins.

6. The tooling for a cooling device for a flaring die of a wound tube according to claim 1, characterized in that, The forming mold (40) includes a connecting flange (41) that is fixedly installed on the lower mold (10) or the upper mold (20) by bolts. The inner circumference of the connecting flange (41) is fixedly provided with a molding sleeve (42) that matches the shape of the forming part (50).

7. The tooling for a cooling device for a flaring die of a spiral wound tube according to claim 1, characterized in that, The mold core (30) includes an inner sleeve (31), and sleeve sealing plates (34) are fixedly provided on both sides of the outer periphery of the inner sleeve (31). An outer sleeve (32) is fixedly connected to the outer periphery of the sleeve sealing plate (34). A connecting ring plate (35) is fixedly connected to both sides of the outer periphery of the outer sleeve (32). A forming sleeve (36) is fixedly connected to the outer periphery of the connecting ring plate (35). A water channel ring (37) is provided between the outer sleeve (32) and the forming sleeve (36).

8. The tooling for a cooling device for a flaring die of a wound tube according to claim 7, characterized in that, A connecting sleeve (33) is fixedly provided on the side of the outer sleeve (32) near the molding mold (40), and the connecting sleeve (33) extends out of the molding mold (40) and is fixedly connected to the external telescopic arm.

9. The tooling for a cooling device of a flaring die for a wound tube according to claim 7, characterized in that, A water inlet (38) is provided on the sleeve sealing plate (34) on the side away from the molding mold (40), and a drain outlet (39) is provided on the connecting ring plate (35) on the side away from the molding mold (40). A through hole connected to the water ring (37) is provided on the side wall of the outer sleeve (32) away from the water inlet (38).

10. The tooling for a cooling device of a flaring die for a wound tube according to claim 7, characterized in that, The water ring (37) is provided with a spiral flow channel groove, through which cooling water circulates in one direction.

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