Pipeline structure of cold and hot forming mold

Abstract

The utility model relates to the field of injection molding equipment, in particular to a cold and hot forming mold pipeline structure which comprises a hot input hose, a hot backflow hose, a cold input hose, a cold backflow hose, an upper mold plate, a lower mold plate, an upper mold and a lower mold, and the upper mold and the lower mold are respectively arranged on the upper mold plate and the lower mold plate; the upper mold plate and the lower mold plate are each provided with an input channel and a backflow channel, and the upper mold and the lower mold are each provided with a circulation channel. The upper mold and the lower mold are spliced to form forming spaces, and each forming space corresponds to one circulating channel located in the upper mold and one circulating channel located in the lower mold; the heat input hose, the input channel, the circulating channel, the backflow channel and the heat backflow hose are sequentially communicated to form a heating flow channel; the cold input hose, the input channel, the circulation channel, the backflow channel and the cold backflow hose are sequentially communicated to form a cooling liquid flow channel or an air flow channel, cold and hot pipelines of input and backflow pipelines are separated, and the problem that the pipelines are prone to damage due to cold and hot mixed use is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding equipment field especially relates to a cold and hot forming die pipeline structure. BACKGROUND

[0002] The mold adopted by injection molding process is generally composed of upper mold and lower mold, the mold is pushed into heating station to be heated and molded, then the mold is moved to cooling station to be cooled, finally the mold is moved out of the cooling station, and the molded material is taken out after the mold is pulled out. In the Chinese patent with patent publication number CN202965002U, the upper mold plate is provided with upper mold plate inlet pipeline and upper mold plate outlet pipeline, and the lower mold plate is provided with lower mold plate inlet pipeline and lower mold plate outlet pipeline, and the upper mold plate and the lower mold plate are heated or cooled by heating steam and cooling water source provided by the water supply tank. However, the inlet pipeline and the outlet pipeline of the secondary foaming molding machine are arranged on the two sides of the upper mold plate or the lower mold plate, the heating or cooling efficiency is low, and the heating steam and the cooling water source flow through the inlet pipeline and the outlet pipeline, which are mixed with cold and hot, and the inlet pipeline and the outlet pipeline are easily damaged, and the maintenance cost is high. SUMMARY

[0003] The utility model discloses a cold and hot forming die pipeline structure.

[0004] In order to realize the above object, the technical scheme of the utility model is as follows:

[0005] A cold and hot forming die pipeline structure, comprising a hot input hose, a hot return hose, a cold input hose, a cold return hose, an upper mold plate, a lower mold plate, an upper mold and a lower mold, the upper mold and the lower mold are installed on the upper mold plate and the lower mold plate respectively, the upper mold plate and the lower mold plate are each provided with at least one input channel and at least one return channel, and the upper mold and the lower mold are each provided with at least one circulation channel, the hot input hose, the input channel, the circulation channel, the return channel and the hot return hose are sequentially communicated to form a heating flow channel, the cold input hose, the input channel, the circulation channel, the return channel and the cold return hose are sequentially communicated to form a cooling liquid flow channel or an air flow channel, and the upper mold and the lower mold form at least one molding space between them in a spliced state, and each molding space corresponds to one circulation channel in the upper mold and one circulation channel in the lower mold respectively.

[0006] Preferably, each molding space corresponds to one input channel in the upper mold plate and one input channel in the lower mold plate respectively, and the input channel comprises a first input channel and a second input channel, and the first input channel and the second input channel are distributed at corresponding positions of each molding space on the upper mold plate or the lower mold plate.

[0007] As preferred, two forming spaces are formed between the upper die and the lower die, one end of the first input channel corresponding to each forming space is communicated with the hot input hose or the cold input hose, and the other end is communicated with the second input channel; the second input channel corresponding to each forming space is provided with an input transition port towards the upper die or the lower die, the input transition port extends to one side surface of the upper die plate or the lower die plate, the input transition port of the upper die plate is communicated with one end of the circulation channel of the upper die, and the input transition port of the lower die plate is communicated with one end of the circulation channel of the lower die.

[0008] As preferred, one return flow channel corresponding to each upper die is located in the upper die plate, and one return flow channel corresponding to each lower die is located in the lower die plate; each return flow channel is provided with two return flow transition ports towards the upper die or the lower die, the return flow transition ports extend to one side surface of the upper die plate or the lower die plate, the return flow transition port of the upper die plate is communicated with the other end of the circulation channel of the upper die, and the return flow transition port of the lower die plate is communicated with the other end of the circulation channel of the lower die.

[0009] As preferred, the input shunt block and the return flow shunt block are further included, the input ports of the input shunt block are respectively communicated with the hot input hose and the cold input hose, and the output port of the input shunt block is communicated with at least one input channel; the input port of the return flow shunt block is communicated with at least one return flow channel, and the output port of the return flow shunt block is respectively communicated with the hot return flow hose and the cold return flow hose.

[0010] As preferred, the steam input main pipeline, the steam return flow main pipeline, the cooling liquid input main pipeline, the cooling liquid return flow main pipeline, the air input main pipeline, the air return flow main pipeline and the cold return flow shunt pipeline are further included, the steam input main pipeline is communicated with the hot input hose; the steam return flow main pipeline is communicated with the hot return flow hose; the cooling liquid input main pipeline and the air input main pipeline are respectively communicated with the cold input hose; the cooling liquid return flow main pipeline and the air return flow main pipeline are respectively communicated with the cold return flow shunt pipeline, and the cold return flow shunt pipeline is communicated with the cold return flow hose.

[0011] As preferred, a ball valve is arranged between the steam input main pipeline and the hot input hose; a return flow valve is arranged at the connection between the output port of the return flow shunt block and the hot return flow hose and at the connection between the output port of the return flow shunt block and the cold return flow hose; a cold shunt valve is arranged at the connection between the cooling liquid return flow main pipeline and the cold return flow shunt pipeline and at the connection between the air return flow main pipeline and the cold return flow shunt pipeline.

[0012] As preferred, the cold input shunt pipeline is further included, the cooling liquid input main pipeline and the air input main pipeline are respectively communicated with the cold input shunt pipeline, and the cold input shunt pipeline is communicated with the cold input hose.

[0013] As preferred, the connection between the cooling liquid input main pipeline and the cold input shunt pipeline and the connection between the air input main pipeline and the cold input shunt pipeline are provided with cold shunt valves; the connection between the input port of the input shunt block and the hot input hose is provided with a hot input valve.

[0014] As preferred, the connection between the cooling liquid input main pipeline and the cold input hose is provided with a cooling liquid input valve, the connection between the air input main pipeline and the cold input hose is provided with an air input valve; the hot input valve between the ball valve and the hot input hose; the connection between the input port of the input shunt block and the hot input hose and the connection between the input port of the input shunt block and the cold input hose are provided with one-way valves.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] (1) The cold and hot forming die pipeline structure adopts the hot input hose and the cold input hose for steam input and cooling liquid input respectively, adopts the hot return hose and the cold return hose for steam return and cooling liquid return respectively, realizes cold and hot separation of the pipeline structure, is favorable for reducing damage of cold and hot alternation to the pipeline structure, prolongs the service life of the pipeline structure, reduces the maintenance cost of the pipeline structure, and can reduce the influence on heating or cooling efficiency when cold and hot change.

[0017] (2) The cold and hot forming die pipeline structure adopts the cold input shunt pipeline, the cold return shunt pipeline and the cold shunt valve, which is convenient for cleaning the cooling liquid in the die by air after the die is cooled by the cooling liquid, and keeps the die dry.

[0018] (3) The cold and hot forming die pipeline structure adopts the heating runner, the cooling liquid runner or the air runner for heating or cooling of each forming space under the split state of the upper die and the lower die, each station can heat and cool, the heating and cooling efficiency of each forming space is high, the movement of the die can be reduced, the heating and cooling work can be completed in the same station, and the production efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the cold and hot forming die pipeline structure of the embodiment one of the utility model;

[0020] Figure 2 It is a split structure schematic view of the upper die and the lower die of the cold and hot forming die pipeline structure of the embodiment one of the utility model;

[0021] Figure 3 It is a structure schematic view of the input channel and the return channel of the upper die plate of the cold and hot forming die pipeline structure of the embodiment one of the utility model;

[0022] Figure 4 Structure diagram of an input channel and a return flow channel of a lower die plate of a cold-hot forming die pipe structure according to an embodiment of the present application;

[0023] Figure 5 Structure diagram of a cold-hot forming die pipe structure according to an embodiment of the present application.

[0024] Reference signs: 111, steam input main pipe; 112, hot input hose; 113, hot return flow hose; 114, steam return flow main pipe; 115, ball valve; 121, cooling liquid input main pipe; 122, cold input shunt pipe; 123, cold input hose; 124, cold return flow hose; 125, cold return flow shunt pipe; 126, cooling liquid return flow main pipe; 127, air input main pipe; 128, air return flow main pipe; 1291, cold shunt valve; 1292, cooling liquid input valve; 1293, air input valve; 21, upper die plate; 22, lower die plate; 23, input channel; 231, first input channel; 232, second input channel; 233, input transition port; 24, return flow channel; 241, return flow transition port; 31, upper die; 32, lower die; 33, circulation channel; 41, input shunt block; 42, hot input valve; 51, return flow shunt block; 52, return flow valve; 6, one-way valve. DETAILED DESCRIPTION

[0025] The present application is further explained with reference to the drawings and specific embodiments. The drawings of the present application are only schematic and are intended to facilitate a better understanding of the present application, the specific proportions thereof given in the drawings are not to be used as a definition of the scope of the present application. The relative positions of the various elements in the drawings described herein are intended to represent the relative positions of the components and not necessarily the actual positions of the components, so the same components can be flipped and present the same components, which should be included in the scope of the present application.

[0026] Embodiment one

[0027] Reference Figures 1 to 4 In the embodiment one of the present application, a cold-hot forming die pipe structure is proposed, which comprises a hot input hose 112, a hot return flow hose 113, a cold input hose 123, a cold return flow hose 124, an upper die plate 21, a lower die plate 22, an upper die 31, a lower die 32, a steam input main pipe 111, a steam return flow main pipe 114, a cooling liquid input main pipe 121, a cooling liquid return flow main pipe 126, an air input main pipe 127, an air return flow main pipe 128, and a cold return flow shunt pipe 125.

[0028] The upper die 31 and the lower die 32 are respectively installed on the upper die plate 21 and the lower die plate 22; the upper die plate 21 and the lower die plate 22 are respectively provided with at least one input channel 23 and at least one return channel 24, and the upper die 31 and the lower die 32 are respectively provided with at least one circulation channel 33; the hot input hose 112, the input channel 23, the circulation channel 33, the return channel 24 and the hot return hose 113 are sequentially communicated to form a heating flow channel; the cold input hose 123, the input channel 23, the circulation channel 33, the return channel 24 and the cold return hose 124 are sequentially communicated to form a cooling liquid flow channel or an air flow channel; when the upper die 31 and the lower die 32 are combined, at least one forming space is formed between the upper die 31 and the lower die 32, each forming space corresponds to one circulation channel 33 in the upper die 31, one circulation channel 33 in the lower die 32, one input channel 23 in the upper die plate 21 and one input channel 23 in the lower die plate 22, wherein the input channel 23 includes a first input channel 231 and a second input channel 232, and the first input channel 231 and the second input channel 232 are distributed at corresponding positions of each forming space on the upper die plate 21 or the lower die plate 22.

[0029] Specifically, referring to Figure 2 The upper die 31 and the lower die 32 are male and female dies, wherein the upper die 31 is a convex die and the lower die 32 is a concave die, and the concave die is downward, which can effectively prevent the forming material from being squeezed and lost too much when it is heated and melted; the circulation channel 33 of the upper die 31 is partially located on the side of the protruding position of the convex die and is arranged around to uniformly and quickly heat or cool the position of the forming space belonging to the upper die 31; the circulation channel 33 of the lower die 32 is partially located on the side of the recessed position of the concave die and is arranged around to uniformly and quickly heat or cool the position of the forming space belonging to the lower die 32; and the input channels 23 of the upper die plate 21 and the lower die plate 22 can respectively heat or cool the upper and lower sides of the forming space. Therefore, the heating flow channel, the cooling liquid flow channel or the air flow channel is arranged around each forming space, thereby improving the heating or cooling efficiency of the forming material in the forming space, ensuring uniform heating or cooling, and improving the product quality.

[0030] The forming space is heated by introducing steam into the heating flow channel, cooled by introducing cooling liquid into the cooling liquid flow channel, and then air is introduced into the air flow channel to carry away the residual liquid in the air flow channel and keep the flow channel dry, thereby realizing rapid heating and cooling of the forming space and improving the mold production efficiency; further, in the cold and hot mold pipeline structure design, the cold and hot pipeline structures are integrated, so that the mold can be cold and hot formed at the same station without shifting position, thereby improving the production efficiency; and further, the input hose and the return hose are separated into cold and hot parts to avoid damage to the pipeline caused by cold and hot alternation, prolong the service life of the pipeline and reduce the maintenance cost.

[0031] Reference Figures 2 to 4 Two forming spaces are formed between the upper die 31 and the lower die 32, one end of the first input channel 231 corresponding to each forming space is communicated with the hot input hose 112 or the cold input hose 123, and the other end is communicated with the second input channel 232; the second input channel 232 corresponding to each forming space is provided with an input transition port 233 towards the upper die 31 or the lower die 32, the input transition port 233 extends to one side surface of the upper die plate 21 or the lower die plate 22, the input transition port 233 of the upper die plate 21 is communicated with one end of the circulation channel 33 of the upper die 31, and the input transition port 233 of the lower die plate 22 is communicated with one end of the circulation channel 33 of the lower die 32. Specifically, the two forming spaces correspond to the left shoe material and the right shoe material respectively, and the two forming spaces correspond to one first input channel 231 and one circulation channel 33, so that the steam or the cooling liquid flows through the input channel 23 and the circulation channel 33 corresponding to the two forming spaces at a similar time when the left shoe material and the right shoe material are cold and hot formed, the two forming spaces of the same set of upper die and lower die are uniformly heated and the temperature is consistent, thereby ensuring the stable product quality.

[0032] Specifically, each upper die 31 corresponds to one reflux channel 24 located in the upper die plate 21, each lower die 32 corresponds to one reflux channel 24 located in the lower die plate 22, and each reflux channel 24 is provided with two reflux transition ports 241 towards the upper die 31 or the lower die 32, the reflux transition port 241 extends to one side surface of the upper die plate 21 or the lower die plate 22, the reflux transition port 241 of the upper die plate 21 is communicated with the other end of the circulation channel 33 of the upper die 31, and the reflux transition port 241 of the lower die plate 22 is communicated with the other end of the circulation channel 33 of the lower die 32, so as to facilitate the steam, the cooling liquid or the air in the two forming spaces of the same die to flow to the hot reflux hose 113 or the cold reflux hose 124.

[0033] In the first embodiment of the present application, reference Figure 1The cold input shunt pipe 122 is further included. The steam input main pipe 111 is communicated with the hot input hose 112; the steam return main pipe 114 is communicated with the hot return hose 113; the coolant input main pipe 121 and the air input main pipe 127 are respectively communicated with the cold input shunt pipe 122, and the cold input shunt pipe 122 is communicated with the cold input hose 123; the coolant return main pipe 126 and the air return main pipe 128 are respectively communicated with the cold return shunt pipe 125, and the cold return shunt pipe 125 is communicated with the cold return hose 124. The cold-hot forming mold pipe structure further includes an input shunt block 41 and a return shunt block 51. The input ports of the input shunt block 41 are communicated with the hot input hose 112 and the cold input hose 123, respectively, and the output port of the input shunt block 41 is communicated with at least one input channel 23. The input port of the return shunt block 51 is communicated with at least one return channel 24, and the output port of the return shunt block 51 is communicated with the hot return hose 113 and the cold return hose 124, respectively.

[0034] Specifically, the connection between the input port of the input shunt block 41 and the hot input hose 112 is provided with a hot input valve 42, and the steam input of each mold is controlled by setting the hot input valve 42. The connection between the output port of the return shunt block 51 and the hot return hose 113 and the connection between the output port of the return shunt block 51 and the cold return hose 124 are both provided with a return valve 52. The hot input valve 42 and the return valve 52 both adopt angle seat valves. A ball valve 115 is arranged between the steam input main pipe 111 and the hot input hose 112. The ball valve 115 is not used in the normal operation of the cold-hot forming mold pipe structure, and is used for manual closing to make the steam input main pipe 111 not communicated with the hot input hose 112 when the hot input valve 42 is maintained. The connections between the coolant input main pipe 121 and the cold input shunt pipe 122 and between the air input main pipe 127 and the cold input shunt pipe 122 are both provided with a cold shunt valve 1291, and the coolant input or air input of the upper mold plate 21 and the lower mold plate 22 is controlled by setting the cold shunt valve 1291. The connections between the coolant return main pipe 126 and the cold return shunt pipe 125 and between the air return main pipe 128 and the cold return shunt pipe 125 are also provided with the cold shunt valve 1291, so as to control the coolant output or air output of the upper mold plate 21 and the lower mold plate 22.

[0035] Specifically, two lower molds 32 can be installed on one lower die plate 22, and the heat input valve 42 between the input channel 23 at the corresponding position on the lower die plate 22 and the heat input hose 112, the backflow valve 52 between the backflow channel 24 at the corresponding position on the lower die plate 22 and the heat backflow hose 113, and the backflow valve 52 between the backflow channel 24 at the corresponding position on the lower die plate 22 and the cold backflow hose 124 can be controlled individually; one upper mold 31 is installed on one upper die plate 21, and one upper mold 31 corresponds to one lower mold 32.

[0036] The cold and hot forming die pipeline structure provided in the application can complete the cold and hot forming work of the die at the same station through the pipeline structure design of cold and hot separation, input and backflow separation, and multi-valve combination control pipeline communication, has flexible control, improves the production efficiency of the cold and hot forming of the die, prolongs the service life of the pipeline, and solves the problem that the pipeline is easily damaged due to cold and hot alternating use.

[0037] The working process of the cold and hot forming die pipeline structure is as follows:

[0038] (1) The upper mold 31 and the lower mold 32 are respectively installed on the upper die plate 21 and the lower die plate 22, and after the upper mold 31 and the lower mold 32 are driven by the locking oil cylinder to be combined, two forming spaces are formed between one upper mold 31 and one lower mold 32, and correspond to the left shoe material and the right shoe material respectively;

[0039] (2) When heating, the ball valve 115, the heat input valve 42 of the heat input hose 112 communicated with the input channel 23 of the upper die plate 21 and the lower die plate 22, and the backflow valve 52 of the heat backflow hose 113 communicated with the backflow channel 24 of the upper die plate 21 and the lower die plate 22 are opened, and steam is introduced into the heat input hose 112, the input channel 23 and the circulation channel 33 of the heating flow channel, so as to heat the upper mold and the lower mold, and then the steam is backflowed to the steam backflow main pipeline 114 through the backflow channel 24 of the heating flow channel and the heat backflow hose 113, and after being heated to the required temperature, the heat input valve 42 and the backflow valve 52 are closed;

[0040] (3) When cooling, first, the two cold shunt valves 1291 at the cooling liquid input main pipeline 121 and the cooling liquid backflow main pipeline 126 and the backflow valve 52 of the cold backflow hose 124 communicated with the backflow channel 24 of the upper die plate 21 and the lower die plate 22 are opened, and cooling liquid such as water is introduced into the cold input hose 123, the input channel 23 and the circulation channel 33 of the cooling liquid flow channel, and the cooling liquid is backflowed to the cooling liquid backflow main pipeline 126 through the backflow channel 24 of the cooling liquid flow channel and the cold backflow hose 124;

[0041] (4) cooling is finished, the two cold shunt valves 1291 at the cooling liquid input main pipe 121 and the cooling liquid return main pipe 126 are closed, and the two cold shunt valves 1291 at the air input main pipe 127 and the air return main pipe 128 are opened, air is input into the cold input hose 123, the input channel 23, the circulation channel 33 and the return channel 24 of the air flow channel to blow away the residual cooling liquid in the input channel 23 and the circulation channel 33, and is returned to the air return main pipe 128 from the cold return hose 124 to keep the inside of the upper mold 31, the lower mold 32, the upper mold plate 21 and the lower mold plate 22 dry, drying is finished, the two cold shunt valves 1291 at the air input main pipe 127 and the air return main pipe 128 and the return valve 52 of the cold return hose 124 communicating with the return channel 24 of the upper mold plate 21 and the lower mold plate 22 are closed.

[0042] Embodiment two

[0043] Reference Figure 5 Embodiment two of the present application is different from embodiment one in that the cooling liquid input valve 1292 is an angle seat valve at the connection between the cooling liquid input main pipe 121 and the cold input hose 123, the air input valve 1293 is provided at the connection between the air input main pipe 127 and the cold input hose 123, the air input valve 1293 is a pneumatic electromagnetic valve, the hot input valve 42 is between the ball valve 115 and the hot input hose 112, and the one-way valve 6 is provided at the connection between the input port of the input shunt block 41 and the hot input hose 112 and at the connection between the input port of the input shunt block 41 and the cold input hose 123. The cold input shunt pipe is not provided after the cooling liquid input main pipe 121 and the air input main pipe 127, the medium input into the cold input hose 123 is controlled by the cooling liquid input valve 1292 and the air input valve 1293 respectively, and the cooling liquid or air is input, and the hot input valve 42 is not provided at the connection between the input port of the input shunt block 41 and the hot input hose 112.

[0044] In the working process of the cold-hot forming mold pipe structure of embodiment two of the present application, when heating, the hot input valve 42 between the steam input main pipe 111 and the hot input hose 112 is opened, and steam is input into the hot input hose 112; when cooling, the cooling liquid input valve 1292 is first opened, and the cooling liquid is input into the cold input hose 123; when cooling is finished, the cooling liquid input valve 1292 is closed and the air input valve 1293 is opened, and air is input into the cold input hose 123 to blow away the residual cooling liquid in each pipe.

[0045] The above examples are only used to further illustrate the technical solutions of the present application, but the present application is not limited to the examples, and any simple modification, equivalent change and modification made according to the technical essence of the present application to the above examples all fall within the protection scope of the technical solutions of the present application.

Claims

1. A cold-hot forming die piping structure, characterized by: The application relates to a heating and cooling mold, which comprises a hot input hose, a hot return hose, a cold input hose, a cold return hose, an upper mold plate, a lower mold plate, an upper mold and a lower mold, wherein the upper mold and the lower mold are respectively installed on the upper mold plate and the lower mold plate; the upper mold plate and the lower mold plate are respectively provided with at least one input channel and at least one return channel; the upper mold and the lower mold are respectively provided with at least one circulation channel; the hot input hose, the input channel, the circulation channel, the return channel and the hot return hose are sequentially communicated to form a heating flow channel; the cold input hose, the input channel, the circulation channel, the return channel and the cold return hose are sequentially communicated to form a cooling liquid flow channel or an air flow channel; when the upper mold and the lower mold are combined, at least one forming space is formed between the upper mold and the lower mold, and each forming space corresponds to one circulation channel in the upper mold and one circulation channel in the lower mold.

2. A cold-hot forming die piping structure according to claim 1, characterized in that: Each forming space corresponds to one input channel in the upper mold plate and one input channel in the lower mold plate; the input channel comprises a first input channel and a second input channel, and the first input channel and the second input channel are distributed at corresponding positions of each forming space on the upper mold plate or the lower mold plate.

3. A cold forming die conduit structure according to claim 2, wherein: Two forming spaces are formed between the upper mold and the lower mold, and one end of the first input channel corresponding to each forming space is communicated with the hot input hose or the cold input hose, and the other end is communicated with the second input channel; the second input channel corresponding to each forming space is provided with an input transition port towards the upper mold or the lower mold, the input transition port extends to one side surface of the upper mold plate or the lower mold plate, one end of the circulation channel of the upper mold is communicated with the input transition port of the upper mold plate, and one end of the circulation channel of the lower mold is communicated with the input transition port of the lower mold plate.

4. A cold forming die conduit structure according to claim 2, wherein: Each upper mold corresponds to one return channel in the upper mold plate, each lower mold corresponds to one return channel in the lower mold plate, and each return channel is provided with two return transition ports towards the upper mold or the lower mold, the return transition ports extend to one side surface of the upper mold plate or the lower mold plate, the other end of the circulation channel of the upper mold is communicated with the return transition port of the upper mold plate, and the other end of the circulation channel of the lower mold is communicated with the return transition port of the lower mold plate.

5. A cold forming die conduit structure according to claim 1, wherein: The application further relates to an input distribution block and a return distribution block, an input port of the input distribution block is communicated with the hot input hose and the cold input hose, and an output port of the input distribution block is communicated with at least one input channel; an input port of the return distribution block is communicated with at least one return channel, and an output port of the return distribution block is communicated with the hot return hose and the cold return hose.

6. A cold forming die conduit structure according to claim 5, wherein: The steam input main pipe is communicated with the hot input hose; the steam return main pipe is communicated with the hot return hose; the coolant input main pipe and the air input main pipe are respectively communicated with the cold input hose; the coolant return main pipe and the air return main pipe are respectively communicated with the cold return shunt pipe, and the cold return shunt pipe is communicated with the cold return hose.

7. A cold forming die conduit structure according to claim 6, wherein: The steam input main pipe is communicated with the hot input hose; the steam return main pipe is communicated with the hot return hose; the coolant input main pipe and the air input main pipe are respectively communicated with the cold input hose; the coolant return main pipe and the air return main pipe are respectively communicated with the cold return shunt pipe, and the cold return shunt pipe is communicated with the cold return hose.

8. A cold forming die conduit structure according to claim 6, wherein: The steam input main pipe is communicated with the hot input hose; the steam return main pipe is communicated with the hot return hose; the coolant input main pipe and the air input main pipe are respectively communicated with the cold input hose; the coolant return main pipe and the air return main pipe are respectively communicated with the cold return shunt pipe, and the cold return shunt pipe is communicated with the cold return hose.

9. A cold forming die conduit structure according to claim 8, wherein: The steam input main pipe is communicated with the hot input hose; the steam return main pipe is communicated with the hot return hose; the coolant input main pipe and the air input main pipe are respectively communicated with the cold input hose; the coolant return main pipe and the air return main pipe are respectively communicated with the cold return shunt pipe, and the cold return shunt pipe is communicated with the cold return hose.

10. A cold forming die conduit structure according to claim 7, wherein: The steam input main pipe is communicated with the hot input hose; the steam return main pipe is communicated with the hot return hose; the coolant input main pipe and the air input main pipe are respectively communicated with the cold input hose; the coolant return main pipe and the air return main pipe are respectively communicated with the cold return shunt pipe, and the cold return shunt pipe is communicated with the cold return hose.

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