Pipeline structure of rapid heating mold and heating method

Abstract

The invention discloses a pipeline structure for rapidly heating a mold and a heating method. The pipeline structure comprises a circulating pipeline arranged in the mold, and the circulating pipeline communicates with the exterior of the mold through a plurality of pipeline inlets and a plurality of pipeline outlets; the pipeline inlet and the pipeline outlet are connected with a pipeline integration device through an inlet branch pipe and an outlet branch pipe respectively, one end of the pipeline integration device is connected with a liquid inlet header pipe and a liquid outlet header pipe, and the liquid inlet header pipe is communicated with the pipeline inlet through a first inner channel of the pipeline integration device. The liquid outlet header pipe is communicated with the pipeline outlet through a second internal channel of the pipeline integration device, and the first internal channel is isolated from the second internal channel; a heating medium passes through the pipeline integration device from the liquid inlet header pipe, passes through the multiple inlet branch pipes, enters the circulating pipeline in the mold through the pipeline inlet to heat the mold, then flows out of the pipeline outlet and finally flows into the pipeline integration device through the multiple outlet branch pipes to be converged into the liquid outlet header pipe.

Description

Technical Field

[0001] The invention relates to the field of vulcanization molding manufacturing, and in particular to a pipeline structure for rapidly heating a mold and a heating method. Background Art

[0002] In the vulcanization molding process, the molding mold needs to be heated during the vulcanization process. In the prior art, flat plate heating is generally used. That is, the mold body is heated by an electric heating plate. Since the heat cannot be directly transferred to the inside of the mold body, the heating efficiency is not high. At present, there is also a method of heating the inside of the mold body by passing a heating medium through a circulation pipeline, but the pipelines of the circulation pipeline and the external connecting pipeline are relatively complicated. The process of disassembling and assembling the pipeline from heating to reheating is cumbersome, and the relatively complicated pipeline will cause messy interference during the process of mold closing, opening and moving.

[0003] Through searching, there are related technical documents on mold heating or cooling in the prior art. For example, the utility model authorization announcement document with the publication number "CN201960683U" and the name "Mold Cooling Device". A mold cooling device is disclosed, including a mold and a cooling component. The mold includes a female mold and a male mold, and a plurality of first interfaces are provided on the female mold, and a plurality of second interfaces are provided on the male mold. The plurality of first interfaces and the plurality of second interfaces are respectively connected through pipes to form a cooling passage. The cooling component includes a water inlet reservoir and a water outlet reservoir. The water inlet reservoir is arranged on the female mold, including a water inlet joint and a plurality of access ends, and the water inlet joint is connected to the external cooling water through a water inlet pipe, and the plurality of access ends are respectively connected to the plurality of first interfaces through a plurality of pipes; the water outlet reservoir is arranged on the male mold, including a water outlet joint and a plurality of outflow ends, and the plurality of outflow ends are respectively connected to the plurality of second interfaces through a plurality of pipes, and the water outlet joint is connected to the water outlet pipe. The pipeline structure adopted in the comparative document can fully cool the mold, but the disassembly process of its pipeline is still relatively complicated.

[0004] For example, the utility model authorization announcement document with the publication number "CN204687341U" and the name "Separate Cooling Mold Assembly". A separate cooling mold assembly is disclosed, including a detachably connected mold and a water-cooling plate, the water-cooling plate including a water-cooling base plate detachably connected to the mold and a sealing cover accommodating the water-cooling base plate and the mold, the water-cooling base plate has a water pipeline inside, and the water-cooling base plate is provided with a water inlet and a water outlet connected to the water pipeline. This comparative document uses a separate cooling method to cool the mold, and does not propose a corresponding improvement plan for the pipeline structure. Therefore, it is of great significance to propose a mold pipeline structure and heating method with high heating efficiency and easy disassembly and assembly in the field. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a pipeline structure and a heating method for quickly heating a mold, comprising a circulation pipeline opened inside the mold, wherein the circulation pipeline is connected to the outside of the mold through multiple pipeline inlets and multiple pipeline outlets, the pipeline inlet and the pipeline outlet are connected to a pipeline integration device through an inlet branch pipe and an outlet branch pipe respectively, one end of the pipeline integration device is connected to a liquid inlet main pipe and a liquid outlet main pipe, the liquid inlet main pipe is connected to the pipeline inlet through a first internal channel of the pipeline integration device, and the liquid outlet main pipe is connected to the pipeline outlet through a second internal channel of the pipeline integration device, and the first internal channel and the second internal channel are isolated; the heating medium enters the circulation pipeline inside the mold from the liquid inlet main pipe through the pipeline integration device through multiple inlet branches and the pipeline inlet to heat the mold, and then flows out from the pipeline outlet, and finally flows into the pipeline integration device through multiple outlet branches and merges into the liquid outlet main pipe.

[0006] Furthermore, the pipeline integration device includes an independent liquid inlet pipeline integration unit and a liquid outlet pipeline integration unit, wherein one side of the liquid inlet pipeline integration unit is connected to the liquid inlet main pipe and the other side is connected to the inlet branch pipe, and one side of the liquid outlet pipeline integration unit is connected to the liquid outlet main pipe and the other side is connected to the outlet branch pipe.

[0007] Furthermore, the mold is divided into an upper mold and a lower mold, the pipeline inlet includes an upper mold inlet distributed in the upper mold and a lower mold inlet distributed in the lower mold, and the pipeline outlet includes an upper mold outlet distributed in the upper mold and a lower mold outlet distributed in the lower mold.

[0008] Furthermore, the inlet branch pipe includes an upper mold inlet branch pipe connected to the upper mold inlet and a lower mold inlet branch pipe connected to the lower mold inlet, and the upper mold inlet branch pipe is connected to the liquid inlet main pipe; the outlet branch pipe includes an upper mold outlet branch pipe connected to the upper mold outlet and a lower mold outlet branch pipe connected to the lower mold outlet, and the upper mold outlet branch pipe is directly connected to the liquid outlet main pipe.

[0009] Furthermore, the upper mold inlet branch pipe is connected to the liquid inlet main pipe through a liquid inlet branch unit, one end of the liquid inlet branch unit is connected to the liquid inlet main pipe and the other end is connected to the liquid inlet pipeline integrated unit; the upper mold outlet branch pipe is connected to the liquid outlet main pipe through a liquid outlet branch unit, one end of the liquid outlet branch unit is connected to the liquid outlet main pipe and the other end is connected to the liquid outlet pipeline integrated unit.

[0010] Furthermore, the liquid inlet pipeline integrated unit and the liquid outlet pipeline integrated unit are both placed on the lower mold connecting plate.

[0011] Furthermore, the liquid inlet branch unit and the liquid outlet branch unit are hard tubes, and the upper mold inlet branch pipe, the lower mold inlet branch pipe, the upper mold outlet branch pipe, and the lower mold outlet branch pipe are soft tubes.

[0012] Furthermore, the liquid inlet pipeline integrated unit or the liquid outlet pipeline integrated unit includes a main body and a main circuit and a branch circuit opened in the main body, the main circuit is connected to the liquid inlet main pipe or the liquid outlet main pipe, the branch circuit is connected to the inlet branch pipe and the outlet branch pipe, and plugs are also connected at both ends of the main circuit and one end of the branch circuit.

[0013] A method for quickly heating a mold is also proposed, which is characterized in that the above-mentioned pipeline structure is adopted, and specifically the following steps are adopted to connect the liquid inlet main pipe, the liquid inlet pipeline integrated unit, the upper mold inlet branch pipe, the lower mold inlet branch pipe and the liquid outlet main pipe, the liquid outlet pipeline integrated unit, the upper mold outlet branch pipe, and the lower mold outlet branch pipe; a heating medium is introduced into the liquid inlet main pipe, and heating is stopped after the inside of the mold is heated to a predetermined temperature.

[0014] Furthermore, after the product processing is completed, the pipeline is removed. When disassembling the pipeline, the liquid inlet main pipe and the liquid outlet main pipe are disassembled, and the remaining pipelines are retained without being disassembled.

[0015] Compared with the prior art, the technical solution of the present application has the following beneficial effects: the pipeline structure proposed in the present invention adopts a pipeline integration device to uniformly integrate and branch the inlet and outlet liquid pipelines. When the heating is completed or needs to be heated again, it is only necessary to connect the pipeline between the main pipe and the pipeline integration device. The branch pipeline between the pipeline integration device and the mold can be retained without repeated disassembly and assembly, which improves the heating efficiency and facilitates the disassembly and assembly of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 : Schematic diagram of the overall structure of the pipeline structure; Figure 2 : Cross-sectional view of the pipeline integration device. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] A pipeline structure and heating method for rapidly heating a mold, comprising a circulation pipeline opened inside a mold 1, wherein the circulation pipeline is connected to the outside of the mold 1 through a plurality of pipeline inlets 11 and a plurality of pipeline outlets 12, wherein the pipeline inlet 11 and the pipeline outlet 12 are connected to a pipeline integrated device 2 through an inlet branch pipe 13 and an outlet branch pipe 14 respectively, wherein one end of the pipeline integrated device 2 is connected to a liquid inlet main pipe 3 and a liquid outlet main pipe 4, wherein the liquid inlet main pipe 3 is connected to the pipeline inlet 11 through a first internal channel of the pipeline integrated device 2, and the liquid outlet main pipe 4 is connected to the pipeline outlet 12 through a second internal channel of the pipeline integrated device 2, wherein the first internal channel and the second internal channel are isolated; a heating medium enters the circulation pipeline inside the mold 1 from the liquid inlet main pipe 3 through the pipeline integrated device 2 through a plurality of inlet branches 13 and the pipeline inlet 11, heats the mold 1, and then flows out from the pipeline outlet 12, and finally flows into the pipeline integrated device 2 through a plurality of outlet branches 14 and merges into the liquid outlet main pipe 4.

[0019] like Figure 1 As shown, in this embodiment, the internal circulation pipeline of the mold 1 can quickly heat the internal problems of the mold to the required temperature through the flowing heating medium. Since the liquid inlet main pipe 3 and the liquid outlet main pipe 4 adopt a single pipeline, the connection and disassembly between them and the pipeline integrated device 2 will be very convenient. The inlet branch pipe 13 and the outlet branch pipe 14 are connected to the pipeline inlet 11 and multiple pipeline outlets 12 of the mold through multiple branches, so that the heating medium can fully flow through various parts inside the mold. The inlet branch pipe 13 and the outlet branch pipe 14 are connected between the pipeline integrated device 2 and the mold. After the heating is completed, there is no need to repeatedly disassemble and assemble.

[0020] In the above-mentioned embodiment, the pipeline integrated device 2 can be a whole one, but it must be ensured that the first internal channel and the second internal channel are isolated, that is, the higher temperature inlet liquid and the medium that is cooled after heating cannot generate heat exchange in the pipeline integrated device 2. Generally speaking, the internal pipelines of the above two parts can be isolated by using heat insulating materials. However, in order to further eliminate the possibility of heat exchange. The pipeline integrated device 2 can be divided into an independent inlet pipeline integrated unit 21 and an outlet pipeline integrated unit 22. One side of the inlet pipeline integrated unit 21 is connected to the inlet main pipe 3 and the other side is connected to the inlet branch pipe 13. One side of the outlet pipeline integrated unit 22 is connected to the outlet main pipe 4 and the other side is connected to the outlet branch pipe 14.

[0021] Generally speaking, the mold 1 is divided into an upper mold 15 and a lower mold 16. The upper mold 15 generally does not move during the vulcanization process. Since the lower mold connecting plate 5 is installed on the machine platform of the vulcanization equipment, the lower mold will move with the lower mold connecting plate 5. Therefore, under the premise of ensuring that the upper mold 15 and the lower mold 16 are fully heated, it is also necessary to minimize the impact of the movement of the lower mold 16 on the pipeline. In this embodiment, the pipeline inlet 11 includes an upper mold inlet 111 distributed in the upper mold 15 and a lower mold inlet 112 distributed in the lower mold 16, and the pipeline outlet 12 includes an upper mold outlet 121 distributed in the upper mold 15 and a lower mold outlet 122 distributed in the lower mold 16. Separating the pipelines of the upper mold 15 and the lower mold 16 makes it easier for the two parts to be fully heated on the one hand, and on the other hand, it is also convenient to distinguish and set the corresponding connected pipelines.

[0022] For example, the inlet branch pipe 13 includes an upper mold inlet branch pipe 131 connected to the upper mold inlet 111 and a lower mold inlet branch pipe 132 connected to the lower mold inlet 112, and the upper mold inlet branch pipe 131 is connected to the liquid inlet main pipe 3; the outlet branch pipe 14 includes an upper mold outlet branch pipe 141 connected to the upper mold outlet 121 and a lower mold outlet branch pipe 142 connected to the lower mold outlet 122, and the upper mold outlet branch pipe 141 is directly connected to the liquid outlet main pipe 4.

[0023] In a more preferred embodiment, the liquid inlet pipeline integrated unit 21 and the liquid outlet pipeline integrated unit 22 are both placed on the lower mold connecting plate 5. In this way, when the lower mold 16 moves with the lower mold connecting plate 5, the lower mold inlet branch pipe 132 and the lower mold outlet branch pipe 142 will move with it without causing mutual pulling.

[0024] In a more preferred embodiment, the upper mold inlet branch pipe 131 is connected to the liquid inlet main pipe 3 through the liquid inlet branch unit 23, one end of the liquid inlet branch unit 23 is connected to the liquid inlet main pipe 3 and the other end is connected to the liquid inlet pipeline integrated unit 21; the upper mold outlet branch pipe 141 is connected to the liquid outlet main pipe 4 through the liquid outlet branch unit 24, one end of the liquid outlet branch unit 24 is connected to the liquid outlet main pipe 4 and the other end is connected to the liquid outlet pipeline integrated unit 22. Multiple branch pipe openings are provided on the sides of the liquid inlet pipeline integrated unit 21 and the liquid outlet branch unit 24 to connect the upper mold inlet branch pipe 131 and the upper mold outlet branch pipe 141. Although the upper mold inlet branch pipe 131 and the upper mold outlet branch pipe 141 will be pulled as the lower mold connecting plate 5 moves, in this embodiment, their number is less than that of the lower mold inlet branch pipe 132 and the lower mold outlet branch pipe 142, so that clutter caused by entanglement can be avoided.

[0025] Since the lower mold 16 moves with the lower mold connecting plate 5, the edge of the lower mold connecting plate 5 will repeatedly rub against the main pipe and cause damage. In order to solve this problem, the liquid inlet branch unit 23 and the liquid outlet branch unit 24 are hard pipes, and the upper mold inlet branch pipe 131, the lower mold inlet branch pipe 132, the upper mold outlet branch pipe 141, and the lower mold outlet branch pipe 142 are soft pipes.

[0026] In the above embodiment, the structure of the liquid inlet pipeline integrated unit 21 or the liquid outlet pipeline integrated unit 22 is similar, including a main body 201 and a main line 202 and a branch line 203 opened in the main body 201, the main line 202 is connected to the liquid inlet main pipe 3 or the liquid outlet main pipe 4, the branch line 203 is connected to the inlet branch pipe 13 and the outlet branch pipe 14, and plugs 204 are also connected to both ends of the main line 202 and one end of the branch line 203.

[0027] This embodiment also provides a method for rapidly heating a mold, which uses the pipeline structure in the above embodiment and specifically adopts the following steps: Connect the liquid inlet main pipe 3, the liquid inlet pipeline integrated unit 21, the upper mold inlet branch pipe 131, the lower mold inlet branch pipe 132, and the liquid outlet main pipe 4, the liquid outlet pipeline integrated unit 22, the upper mold outlet branch pipe 141, and the lower mold outlet branch pipe 142; A heating medium is introduced into the liquid inlet main pipe 3, and heating is stopped after the inside of the mold 1 is heated to a predetermined temperature.

[0028] In a more preferred embodiment, the pipeline is removed after the product processing is completed. When removing the pipeline, the liquid inlet main pipe 3 and the liquid outlet main pipe 4 are removed, and the remaining pipelines are retained without being disassembled.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipeline structure and heating method for rapidly heating a mold, characterized in that: The invention comprises a circulation pipeline opened inside a mold (1), wherein the circulation pipeline is connected to the outside of the mold (1) through a plurality of pipeline inlets (11) and a plurality of pipeline outlets (12), wherein the pipeline inlets (11) and the pipeline outlets (12) are connected to a pipeline integrated device (2) through an inlet branch pipe (13) and an outlet branch pipe (14) respectively, wherein one end of the pipeline integrated device (2) is connected to a liquid inlet main pipe (3) and a liquid outlet main pipe (4), wherein the liquid inlet main pipe (3) is connected to a liquid outlet main pipe (4) through a first internal channel of the pipeline integrated device (2) and a pipeline inlet branch pipe (13). The liquid outlet main pipe (4) is connected to the pipeline outlet (12) through the second internal channel of the pipeline integrated device (2), and the first internal channel and the second internal channel are isolated; the heating medium flows from the liquid inlet main pipe (3) through the pipeline integrated device (2) through the plurality of inlet branches (13) and enters the circulation pipeline inside the mold (1) through the pipeline inlet (11), heats the mold (1), and then flows out from the pipeline outlet (12), and finally flows into the pipeline integrated device (2) through the plurality of outlet branches (14) and merges into the liquid outlet main pipe (4).

2. The pipeline structure for rapid heating of a mold according to claim 1, characterized in that: The pipeline integration device (2) comprises an independent liquid inlet pipeline integration unit (21) and a liquid outlet pipeline integration unit (22); one side of the liquid inlet pipeline integration unit (21) is connected to the liquid inlet main pipe (3) and the other side is connected to the inlet branch pipe (13); one side of the liquid outlet pipeline integration unit (22) is connected to the liquid outlet main pipe (4) and the other side is connected to the outlet branch pipe (14).

3. The pipeline structure for rapid heating of a mold according to claim 2, characterized in that: The mold (1) is divided into an upper mold (15) and a lower mold (16); the pipeline inlet (11) comprises an upper mold inlet (111) distributed in the upper mold (15) and a lower mold inlet (112) distributed in the lower mold (16); and the pipeline outlet (12) comprises an upper mold outlet (121) distributed in the upper mold (15) and a lower mold outlet (122) distributed in the lower mold (16).

4. The pipeline structure for rapid heating of a mold according to claim 3, characterized in that: The inlet branch pipe (13) comprises an upper mold inlet branch pipe (131) connected to the upper mold inlet (111) and a lower mold inlet branch pipe (132) connected to the lower mold inlet (112); the upper mold inlet branch pipe (131) is connected to the liquid inlet main pipe (3); the outlet branch pipe (14) comprises an upper mold outlet branch pipe (141) connected to the upper mold outlet (121) and a lower mold outlet branch pipe (142) connected to the lower mold outlet (122); the upper mold outlet branch pipe (141) is directly connected to the liquid outlet main pipe (4).

5. The pipeline structure for rapid heating of a mold according to claim 4, characterized in that: The upper mold inlet branch pipe (131) is connected to the liquid inlet main pipe (3) via a liquid inlet branch unit (23); one end of the liquid inlet branch unit (23) is connected to the liquid inlet main pipe (3) and the other end is connected to the liquid inlet pipeline integrated unit (21); the upper mold outlet branch pipe (141) is connected to the liquid outlet main pipe (4) via a liquid outlet branch unit (24); one end of the liquid outlet branch unit (24) is connected to the liquid outlet main pipe (4) and the other end is connected to the liquid outlet pipeline integrated unit (22).

6. The pipeline structure for rapid heating of a mold according to claim 2, characterized in that: The liquid inlet pipeline integrated unit (21) and the liquid outlet pipeline integrated unit (22) are both placed on the lower mold connecting plate (5).

7. The pipeline structure for rapid heating of a mold according to claim 5, characterized in that: The liquid inlet branch unit (23) and the liquid outlet branch unit (24) are hard tubes, and the upper die inlet branch pipe (131), the lower die inlet branch pipe (132), the upper die outlet branch pipe (141), and the lower die outlet branch pipe (142) are soft tubes.

8. The pipeline structure for rapid heating of a mold according to claim 2, characterized in that: The liquid inlet pipeline integrated unit (21) or the liquid outlet pipeline integrated unit (22) comprises a main body (201) and a main line (202) and a branch line (203) connected to the main body (201); the main line (202) is connected to the liquid inlet main pipe (3) or the liquid outlet main pipe (4); the branch line (203) is connected to the inlet branch pipe (13) and the outlet branch pipe (14); and plugs (204) are connected to both ends of the main line (202) and one end of the branch line (203).

9. A method for rapidly heating a mold, characterized in that: The pipeline structure according to any one of claims 3 to 8 is adopted, and the following steps are specifically adopted: Connecting the liquid inlet main pipe (3), the liquid inlet pipeline integrated unit (21), the upper mold inlet branch pipe (131), the lower mold inlet branch pipe (132), and the liquid outlet main pipe (4), the liquid outlet pipeline integrated unit (22), the upper mold outlet branch pipe (141), and the lower mold outlet branch pipe (142); A heating medium is introduced into the liquid inlet main pipe (3), and heating is stopped after the interior of the mold (1) is heated to a predetermined temperature.

10. The method for rapidly heating a mold according to claim 9, characterized in that: After the product processing is completed, the pipeline is removed. When removing the pipeline, the liquid inlet main pipe (3) and the liquid outlet main pipe (4) are removed, and the remaining pipelines are retained without being removed.

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