Die cooling structure for flange accessory production and forming die

Abstract

According to the mold cooling structure for flange accessory production and the forming mold, the cooling structure is arranged in the mold body, the cooling speed of the mold body is increased through the cooling structure, and the working efficiency is improved; the cooling structure is provided with a plurality of groups of cooling pipelines, and the cooling pipelines are arranged on the upper die and the lower die at the position of the cavity; the cooling structure comprises a first cooling pipe and a second cooling pipe, and the cooling structure communicates with the first cooling pipe and the second cooling pipe through cooling pipelines. According to the cooling device, the communicating pipe and the auxiliary cooling pipe are arranged, the communicating pipe is communicated with the auxiliary cooling pipe, at least two sets of spiral pipes are arranged in the communicating pipe, cooling liquid in the cooling pipe is led into a blind area through the two sets of spiral pipes, and then the uniform cooling effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of flange production, in particular to a mold cooling structure and a forming mold used for the production of flange accessories. Background Art

[0002] Flange, also known as flange flange or flange, is a part that connects shafts to each other and is used to connect pipe ends. It is also used in equipment inlets and outlets for connection between two devices, such as reducer flanges. Flange connection or flange joint refers to a detachable connection composed of flanges, gaskets and bolts as a combined sealing structure.

[0003] Flange accessories are generally obtained by casting or forging. The mold for producing flange accessories includes components such as mold base, cavity and gate sleeve. By setting a cooling pipeline inside the mold, the injection molding machine injects fluid plastic into the cavity, and then injects coolant into the cooling pipeline to cool the flange accessories and realize the cooling molding of the product.

[0004] When the existing cooling pipeline is arranged, there is a blind spot, which makes it impossible to set the cooling pipeline in the blind spot, resulting in the mold temperature at the blind spot being too high and the surface of the flange fitting being rough.

[0005] In view of this, how to solve the defects existing in the above technical solutions has become one of the problems to be solved urgently in the field of flange production and processing technology. Utility Model Content

[0006] In view of the problems existing in the background technology, the purpose of the utility model is to overcome the shortcomings of the prior art and provide a mold cooling structure and a forming mold for the production of flange accessories, so as to solve the problem that when the existing cooling pipeline is arranged, there are blind spots, which make it impossible to set the cooling pipeline in the blind spot, resulting in the mold temperature at the blind spot being too high, causing the surface of the flange accessories to be rough.

[0007] The utility model is realized by the following technical scheme, and discloses a mold cooling structure and a forming mold for flange accessories production, including:

[0008] A cooling structure disposed in the mold body;

[0009] Cooling pipes, multiple groups of cooling pipes are arranged at the cavity position of the mold body;

[0010] A first cooling pipe, the first cooling pipe extending from one side of the periphery of the mold body to the inlet end of the cooling structure and communicating with the cooling pipeline inlet;

[0011] A second cooling pipe extends from one side of the periphery of the mold body to the outlet end of the cooling structure and is connected to the cooling pipe outlet; the cooling pipe is connected to the first cooling pipe and the second cooling pipe respectively.

[0012] Optionally, the spacing distance between the cooling pipe and the cavity of the mold body is 6-15 mm.

[0013] Optionally, at least one group of connecting pipes is provided on the cooling pipe and is connected to the auxiliary cooling pipe, and cooling sleeves are fixedly provided on the outer walls of the cooling pipe and the auxiliary cooling pipe.

[0014] Optionally, at least one group of connecting pipes is provided on the cooling pipe and is connected to the auxiliary cooling pipe, and cooling sleeves are fixedly provided on the outer walls of the cooling pipe and the auxiliary cooling pipe.

[0015] Optionally, the connecting pipe is arranged on the mold body away from the cooling pipe and located at a position where the flange reinforcement rib arm thickness is thicker, and at least two groups of spiral pipes are arranged in the connecting pipe.

[0016] Optionally, the spiral tube has a diameter of 6-35 mm.

[0017] Optionally, a regulator is provided at one end of the connecting pipe away from the cooling pipe, and an oblique opening is provided at an outlet end of the connecting pipe close to the regulator.

[0018] Forming dies for flange fittings production, including:

[0019] Mold body;

[0020] mandrel;

[0021] An upper die seat, wherein an upper die is arranged on the upper die seat, and an upper die cushion block is arranged between the upper die and the upper die seat;

[0022] A lower die base is provided with a lower die on the lower die base, and the upper die and the lower die cooperate with each other to form a cavity,

[0023] A pouring riser is arranged on the top of the upper mold base and is connected to the pouring channel in the mold body;

[0024] A guide sleeve is arranged in the guide hole of the upper die, and a guide column is arranged in the guide sleeve, and the other end of the guide column is fixedly installed in the lower die.

[0025] In summary, the beneficial effects of the utility model are:

[0026] 1. The utility model is provided with a connecting pipe and an auxiliary cooling pipe, and the connecting pipe is connected to the auxiliary cooling pipe. At least two groups of spiral tubes are arranged in the connecting pipe. The coolant in the cooling pipe is introduced into the blind area through the two groups of spiral tubes, thereby achieving a uniform cooling effect.

[0027] 2. The utility model adds a regulator at one end of the connecting pipe to pressurize the coolant through the regulator, so that the pressurized coolant is ejected at high speed through the outlet end of the connecting pipe with an inclined opening and enters the auxiliary cooling pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of a mold cooling structure and a molding mold for flange accessories production according to an embodiment of the present invention;

[0029] Figure 2 A schematic diagram of the structure of the cooling structure of the mold and the cooling liquid inlet and outlet positions provided in one embodiment of the molding mold for flange accessories production of the utility model;

[0030] Figure 3 A cooling pipe arrangement diagram at the mold cavity position provided by an embodiment of a mold cooling structure and a molding mold for flange fitting production of the utility model;

[0031] Figure 4 A schematic diagram of the cooling structure of a mold cooling structure and a forming mold for flange fitting production according to an embodiment of the present invention;

[0032] Figure 5 For the utility model Figure 4 An enlarged view of position A is shown in FIG.

[0033] Reference numerals:

[0034] 100. Mould body;

[0035] 1. Casting and riser;

[0036] 2. Upper die pad;

[0037] 3. Upper die seat;

[0038] 4. Guide sleeve;

[0039] 5. Guide pillar;

[0040] 6. Lower die seat;

[0041] 7. Ejector rod;

[0042] 8. Lower mold;

[0043] 9. Cooling structure; 093. First cooling pipe; 094. Second cooling pipe; 095. Cooling pipeline; 096. Auxiliary cooling pipe; 097. Connecting pipe; 098. Cooling jacket; 099. Spiral pipe;

[0044] 10. Upper mold;

[0045] 11. Cavity;

[0046] 12. Slider;

[0047] 13. Regulator. DETAILED DESCRIPTION

[0048] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0050] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. Although exemplary embodiments are disclosed in the accompanying drawings, it should be understood that the utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to facilitate a thorough understanding of the utility model and to fully convey the concept of the utility model to those skilled in the art.

[0051] See also Figures 1 to 5As shown, an embodiment of the utility model provides a mold cooling structure and a forming mold for flange fitting production, including a mold body 100, the mold body 100 includes a push rod 7, an upper mold base 3 and a lower mold base 6, an upper mold 10 is arranged on the upper mold base 3, a lower mold 8 is arranged on the lower mold base 6, and the upper mold 10 and the lower mold 8 cooperate with each other to form a cavity 11, and an upper mold cushion block 2 is arranged between the upper mold 10 and the upper mold base 3;

[0052] A pouring riser 1 is provided on the top of the upper mold base 3 and is connected to the pouring channel in the mold body 100, so that the casting liquid can be input into the mold cavity 11 through the pouring riser 1;

[0053] A guide hole is provided in the upper die 10 , and a guide sleeve 4 is provided in the guide hole. A guide column 5 is provided in the guide sleeve 4 , and the other end of the guide column 5 is fixedly installed in the lower die 8 . When in use, the guide column 5 extends into the guide sleeve 4 .

[0054] See also Figures 1 to 5 As shown, a cooling structure 9 is arranged in the mold body 100, and the cooling rate of the mold body 100 is accelerated by the cooling structure 9, thereby improving the working efficiency; the cooling structure 9 is provided with a plurality of cooling pipes 095, and the cooling pipes 095 are arranged on the upper mold 10 and the lower mold 8 at the position of the cavity 11; the plurality of cooling pipes 095 are connected in series through a connecting piece;

[0055] The cooling structure 9 includes a first cooling pipe 093 and a second cooling pipe 094.

[0056] The first cooling pipe 093 extends from one side of the periphery of the mold body 100 to the inlet end of the cooling structure 9 and is connected to the inlet of the cooling pipeline 095;

[0057] The second cooling pipe 094 extends from one side of the periphery of the mold body 100 to the outlet end of the cooling structure 9 and is connected to the outlet of the cooling pipe 095 , thereby achieving communication between the cooling pipe 095 and the first cooling pipe 093 and the second cooling pipe 094 , respectively.

[0058] Furthermore, the spacing distance between the cooling pipe 095 and the cavity 11 is 6-15 mm.

[0059] In this embodiment, when the spacing distance between the cooling pipe 095 and the cavity 11 is 13 mm, the surface temperature of the cavity 11 is most uniform.

[0060] See also Figures 1 to 5 As shown, at least one group of connecting pipes 097 are provided on the cooling pipe 095 , and are connected to the auxiliary cooling pipe 096 . Cooling sleeves 098 are fixedly provided on the outer walls of the cooling pipe 095 and the auxiliary cooling pipe 096 .

[0061] Furthermore, the connecting pipe 097 is arranged on the mold body 100 away from the cooling pipe 095 and at a position where the flange reinforcement rib is thicker, and at least two groups of spiral pipes 099 are arranged in the connecting pipe 097, and the diameter of the spiral pipe 099 is 6-35mm. The coolant is introduced into the blind area through the two groups of spiral pipes 099, thereby achieving a uniform cooling effect.

[0062] In this embodiment, since the arm thickness at the existing flange reinforcement rib position is relatively thick, a large amount of heat is generated in the casting liquid during the solidification process, and the existing cooling pipeline cannot be arranged at the flange reinforcement rib position during layout, resulting in too high temperature at the flange reinforcement rib position, causing the surface of the flange fitting to be rough. The utility model is provided with a connecting pipe 097, and the auxiliary cooling pipe 096 is connected through the connecting pipe, and at least two groups of spiral pipes 099 are arranged in the connecting pipe 097. The coolant in the cooling pipe 095 is introduced into the blind area through the two groups of spiral pipes 099, thereby achieving a uniform cooling effect.

[0063] See also Figure 5 As shown, a regulator 13 is provided at one end of the connecting pipe 097 away from the cooling pipe 095. The regulator 13 is preferably a boost regulator, and an oblique opening is provided at the outlet end of the connecting pipe 097 close to the regulator. The oblique opening is provided to increase the cross-sectional area of ​​the connecting pipe outlet.

[0064] Furthermore, one end of the auxiliary cooling pipe away from the cooling pipe is arranged in an arc shape, or in a triangular shape, so that it is close to the inner wall at the raised position in the mold body, with a spacing of 6-15mm.

[0065] In this embodiment, at the position of the mold body where the flange reinforcement rib arm is thicker, due to the thick wall, when the coolant is introduced through the spiral tube 099, a large part of the coolant will flow back, resulting in too little coolant introduced into the blind area. In order to solve the above defects, the utility model adds a regulator 13 at one end of the connecting tube 097, and pressurizes the coolant through the regulator 13, so that the pressurized coolant is ejected at a high speed through the outlet end of the connecting tube 097 with an inclined mouth, and enters the auxiliary cooling tube 096.

[0066] In actual application, the coolant in the auxiliary cooling pipe can flow back into the cooling pipe 095 again through the outlet end of the connecting pipe to realize the circulation of the coolant.

[0067] The use process and working principle of the utility model are:

[0068] In actual application, since the arm thickness at the existing flange reinforcement rib position is relatively thick, a large amount of heat is generated in the casting liquid during the solidification process, and the existing cooling pipeline cannot be arranged at the flange reinforcement rib position, resulting in too high temperature at the flange reinforcement rib position, causing the surface of the flange accessories to be rough. The utility model is provided with a connecting pipe 097, and the auxiliary cooling pipe 096 is connected through the connecting pipe, and at least two groups of spiral pipes 099 are arranged in the connecting pipe 097. The coolant in the cooling pipeline 095 is introduced into the connecting pipe 097 through the two groups of spiral pipes 099, and is ejected through the outlet end of the connecting pipe in a fountain-like jet, and injected into the auxiliary cooling pipe, so as to cool the mold body at the position where the flange reinforcement rib arm thickness is relatively thick, thereby achieving a uniform cooling effect.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not restrictive. Although the utility model is described in detail with reference to the embodiments, it should be understood by those skilled in the art that any modification or equivalent replacement of the technical solution of the utility model does not deviate from the spirit and scope of the technical solution of the utility model, and should be included in the scope of the claims of the utility model.

Claims

1. A mold cooling structure for flange fitting production, characterized in that: include: A cooling structure disposed in the mold body; Cooling pipes, multiple groups of cooling pipes are arranged at the cavity position of the mold body; A first cooling pipe, the first cooling pipe extending from one side of the periphery of the mold body to the inlet end of the cooling structure and communicating with the cooling pipeline inlet; A second cooling pipe extends from one side of the periphery of the mold body to the outlet end of the cooling structure and is connected to the cooling pipe outlet; the cooling pipe is connected to the first cooling pipe and the second cooling pipe respectively.

2. The mold cooling structure for flange fitting production according to claim 1, characterized in that: The spacing distance between the cooling pipe and the cavity of the mold body is 6-15 mm.

3. The mold cooling structure for flange fitting production according to claim 1, characterized in that: At least one group of connecting pipes is arranged on the cooling pipeline and is connected to the auxiliary cooling pipe. Cooling sleeves are fixedly arranged on the outer walls of the cooling pipeline and the auxiliary cooling pipe.

4. The mold cooling structure for flange accessory production according to claim 3 is characterized in that: At least one group of connecting pipes is arranged on the cooling pipeline and is connected with the auxiliary cooling pipe. Cooling sleeves are fixedly arranged on the outer walls of the cooling pipeline and the auxiliary cooling pipe.

5. The mold cooling structure for flange fitting production according to claim 4, characterized in that: The connecting pipe is arranged away from the cooling pipe and located on the mold body at a position where the flange reinforcement rib arm thickness is relatively thick, and at least two groups of spiral pipes are arranged in the connecting pipe.

6. The mold cooling structure for flange fitting production according to claim 5, characterized in that: The spiral tube has a diameter of 6-35 mm.

7. The mold cooling structure for flange accessory production according to claim 5, characterized in that: A regulator is arranged at one end of the connecting pipe away from the cooling pipeline, and an oblique opening is arranged at an outlet end of the connecting pipe close to the regulator.

8. The forming mold used for the production of flange accessories is characterized by: include: Mold body; mandrel; An upper die seat, wherein an upper die is arranged on the upper die seat, and an upper die cushion block is arranged between the upper die and the upper die seat; A lower die base, on which a lower die is arranged, and the upper die and the lower die cooperate with each other to form a cavity; A pouring riser is arranged on the top of the upper mold base and is connected to the pouring channel in the mold body; A guide sleeve is arranged in the guide hole of the upper die, and a guide column is arranged in the guide sleeve, and the other end of the guide column is fixedly installed in the lower die.

Images