Circulating cooling system for die-casting mold frame

Abstract

The invention provides a die-casting mold frame circulating cooling system, and relates to the field of die-casting mold cooling. Two main cooling heat dissipation fans are fixedly installed on the rear side wall of the main cooling heat exchange box in the longitudinal direction, a primary circulating cooling pipe is fixedly installed in the main cooling heat exchange box, a mold base is fixedly connected to the front side of the primary circulating cooling pipe, and a secondary circulating cooling pipe is fixedly connected to the middle of the top of the main cooling heat exchange box. And auxiliary cooling heat exchange boxes are fixedly connected to the bottoms of the left and right sides of the rear end of the secondary circulating cooling pipe. A spiral groove is formed in the transverse outer side wall of the primary circulating cooling pipe, and a spiral bulge is also arranged in the inner side wall, corresponding to the spiral groove, of the primary circulating cooling pipe, so that the contact area is greatly increased, and a cooling medium in the primary circulating cooling pipe can be better subjected to heat exchange cooling operation; the problem that the cooling circulation efficiency is low due to cooling pipeline layout is solved.

Description

Technical Field

[0001] The invention relates to the technical field of die-casting mold cooling, and in particular to a die-casting mold frame circulating cooling system. Background Art

[0002] In the complex production environment of the modern die-casting industry, the cooling link of the die-casting mold frame plays a vital role in the successful implementation of the entire die-casting process. The essence of the die-casting process is to quickly inject high-temperature liquid metal into the mold cavity under high pressure to solidify it. The heat load that the mold bears in this process is extremely large and complex. Therefore, the cooling effect of the mold directly affects the quality of the casting, production efficiency and service life of the mold. The traditional die-casting mold frame cooling system has many defects.

[0003] Based on the above, the existing die casting mold frame circulating cooling system has the following shortcomings:

[0004] The traditional die-casting mold frame cooling system has many defects that are difficult to overcome due to the limitations of design concepts and technical means. In terms of cooling pipeline layout, its design often lacks in-depth analysis and precise grasp of the heat transfer characteristics of the mold. Usually, the flow regulation of the cooling medium relies solely on simple manual valve operation, and precise flow control cannot be achieved. Operators can only roughly judge the size of the flow based on experience, and it is difficult to make timely and accurate adjustments based on real-time working conditions during the die-casting process. For example, when die-casting different types of metal materials, the required cooling intensity is also very different due to the great differences in the melting point, specific heat capacity, thermal conductivity and other thermophysical properties of various metals. For metals with higher melting points and lower thermal conductivity, such as some aluminum alloys or magnesium alloys, greater cooling intensity is required to ensure rapid solidification of the molten metal; while for metals with lower melting points and higher thermal conductivity, relatively smaller cooling intensity is required to avoid overcooling. However, the traditional cooling system cannot automatically adapt to the cooling caused by these material changes. Differences in demand. Similarly, when facing mold structures of different complexities, such as molds with fine core structures or large thin-walled areas, the requirements for cooling uniformity and strength are also different, but the traditional system lacks the corresponding intelligent control capabilities. This imprecise flow control leads to low cooling efficiency and extended die-casting cycles. A longer die-casting cycle means lower output per unit time, which increases the production cost of each product, including equipment depreciation, labor costs, and energy consumption. In terms of temperature control, the traditional cooling system only sets the initial temperature of the cooling medium. During the circulation process, it is impossible to dynamically adjust the temperature of the cooling medium according to the changes in the actual temperature of the mold. The cooling medium will continuously absorb the heat of the mold and heat up during the circulation process. If it cannot be cooled or the temperature adjusted in time, its cooling effect will gradually weaken, which not only affects the quality stability of the casting, but may also shorten the service life of the mold due to excessively high mold temperature, and increase the cost of mold maintenance and replacement. Summary of the invention

[0005] The disclosed embodiment relates to a circulating cooling system for a die-casting mold frame, which configures a main cooling heat exchange box to be hollow and installs a primary circulating cooling pipe in the main cooling heat exchange box so that the primary circulating cooling pipe is circulated and cooled by the main cooling heat exchange box, thereby reducing the temperature of the primary circulating cooling pipe, and fixing an "S"-shaped primary circulating cooling pipe in the main cooling heat exchange box so that the primary circulating cooling pipe can better exchange heat with the cooling medium in the main cooling heat exchange box, and a spiral groove is provided in the transverse outer side wall of the primary circulating cooling pipe, and a spiral protrusion is also provided in the inner side wall of the primary circulating cooling pipe corresponding to the spiral groove, which greatly increases the contact area and can better perform heat exchange and cooling operations on the cooling medium in the primary circulating cooling pipe, so that the cooling medium in the primary circulating cooling pipe can be cooled by the primary circulating cooling pipe. The die-casting mold heat exchange pipe at the end brings excellent cooling effect to the mold base. The circulating pump connected to the branch end is connected to the front side of the top of the primary circulation cooling pipe, so that the cooling medium in the primary circulation cooling pipe can circulate and flow to cool the mold base. The bottom of the primary circulation cooling pipe is connected to the solenoid valve fixedly installed in the middle of the branch end. The flow rate of the cooling medium can be adjusted according to actual needs through the solenoid valve. The "S"-shaped die-casting mold heat exchange pipe adopts a special flat structure. The inner layer of the pipe is made of metal material with high thermal conductivity, and the outer layer is wrapped with insulation material, which effectively reduces heat loss during the cooling process and improves cooling efficiency. It has higher heat exchange efficiency and smaller volume, can quickly reduce the temperature of the cooling medium, and meet the cooling needs of high-intensity die-casting production.

[0006] In a first aspect of the present disclosure, a circulating cooling system for a die-casting mold frame is provided, specifically comprising: a main cooling heat exchange box; two main cooling heat dissipation fans are longitudinally arranged and fixedly installed on the rear side wall of the main cooling heat exchange box, a primary circulating cooling pipe is fixedly installed inside the main cooling heat exchange box, the front side of the primary circulating cooling pipe is fixedly connected to the mold base, a secondary circulating cooling pipe is fixedly connected to the middle of the top of the main cooling heat exchange box, and auxiliary cooling heat exchange boxes are fixedly connected to the bottom of the left and right sides of the rear end of the secondary circulating cooling pipe, and auxiliary cooling heat dissipation fans are fixedly installed on the opposite side walls of the two auxiliary cooling heat exchange boxes.

[0007] Furthermore, the main cooling heat exchanger box is hollow, and six rectangular long holes are equidistantly provided in the middle of the front and rear side walls of the main cooling heat exchanger box, and a heat dissipation grille connected up and down is installed in each long hole. A primary circulation cooling interface is provided in the upper left corner and the lower right corner of the front side wall of the main cooling heat exchanger box, and a secondary circulation cooling interface is provided in the middle of the top and the middle of the bottom of the main cooling heat exchanger box.

[0008] Furthermore, the main body of the primary circulation cooling pipe is in an "S" spiral shape, a spiral groove is provided in the transverse outer side wall of the primary circulation cooling pipe, and a spiral protrusion is also provided in the inner side wall of the primary circulation cooling pipe corresponding to the spiral groove.

[0009] Furthermore, two connecting branch ends are fixedly connected to the upper and lower ends of the front side of the primary circulation cooling tube, and a die-casting mold heat exchange pipe is connected between each top connecting branch end and the lower connecting branch end of the primary circulation cooling tube, and the die-casting mold heat exchange pipe is "S" shaped and flat.

[0010] Furthermore, a circulation pump is fixedly installed in the middle of the top connecting branch end of the primary circulation cooling pipe, and a solenoid valve is fixedly installed in the middle of the bottom connecting branch end of the primary circulation cooling pipe.

[0011] Furthermore, the mold base is rectangular and connected to the die-casting mold. A flat and "S"-shaped internal heat dissipation cavity is opened inside the mold base, and the internal heat dissipation cavity is connected to the die-casting mold heat exchange pipe at the front end of the primary circulation cooling pipe.

[0012] Furthermore, a secondary circulation cooling pipe is fixedly connected to the secondary circulation cooling interface on the top of the main cooling heat exchanger box, and a secondary circulation return pipe is fixedly installed on the secondary circulation cooling interface at the bottom of the main cooling heat exchanger box. The rear end of the secondary circulation return pipe is in a "T" shape, and circulation control pumps are fixedly installed on the left and right sides of the rear end of the secondary circulation return pipe.

[0013] Furthermore, the auxiliary cooling heat exchanger boxes are symmetrically provided with two, the top front sides of the two auxiliary cooling heat exchanger boxes are connected to the rear end bottom of the secondary circulation cooling pipe, and the bottom rear sides of the two auxiliary cooling heat exchanger boxes are connected to the rear end top of the secondary circulation return pipe.

[0014] Furthermore, the auxiliary cooling heat exchanger box is frame-shaped, and a through ventilation slot is opened in the middle of the left and right side walls of the auxiliary cooling heat exchanger box. A "human" shaped heat exchange grille is fixedly installed at an equal distance in the ventilation slot, and an arc-shaped guide air plate is fixedly installed at the front end of the opposite side walls of the two auxiliary cooling heat exchanger boxes.

[0015] Furthermore, the middle of the guide air plates on the opposite side walls of the two auxiliary cooling heat exchange boxes is located directly behind the main cooling heat exchange box.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The main cooling heat exchange box is set to be hollow, and the primary circulation cooling pipe is installed in the main cooling heat exchange box, so that the primary circulation cooling pipe can be circulated and cooled by the main cooling heat exchange box, thereby reducing the temperature of the primary circulation cooling pipe, and the heat dissipation grilles are fixedly installed in the long holes through the front and rear side walls of the main cooling heat exchange box to dissipate heat and cool the main cooling heat exchange box, and the main cooling heat dissipation fan is fixed on the rear side wall of the main cooling heat exchange box, and the air quickly passes through the heat dissipation grilles fixedly installed in the main cooling heat exchange box through the main cooling heat exchanger fan, so as to achieve a better heat dissipation effect of the main cooling heat exchange box.

[0018] 2. The "S"-shaped primary circulation cooling pipe is fixedly installed on the main cooling heat exchange box so that the primary circulation cooling pipe can better exchange heat with the cooling medium in the main cooling heat exchange box, and a spiral groove is opened in the transverse outer wall of the primary circulation cooling pipe, and a spiral protrusion is also arranged in the inner wall of the primary circulation cooling pipe corresponding to the spiral groove, which greatly increases the contact area and can better perform heat exchange and cooling operations on the cooling medium in the primary circulation cooling pipe, so that the die-casting mold heat exchange pipeline at the front end of the primary circulation cooling pipe can bring excellent cooling effect to the mold base, and the heat exchange pipe connected to the branch end at the top front side of the primary circulation cooling pipe can be connected to the branch end at the top front side of the primary circulation cooling pipe. The circulation pump enables the cooling medium in the primary circulation cooling pipe to circulate and flow, which is used to cool the mold base. The bottom of the primary circulation cooling pipe is connected to the solenoid valve fixedly installed in the middle of the branch end. The flow rate of the cooling medium can be adjusted according to actual needs through the solenoid valve. The "S"-shaped die-casting mold heat exchange pipeline adopts a special flat structure. The inner layer of the pipeline is made of metal material with high thermal conductivity, and the outer layer is wrapped with insulation material, which effectively reduces heat loss during the cooling process and improves cooling efficiency. It has higher heat exchange efficiency and smaller volume, can quickly reduce the temperature of the cooling medium, and meet the cooling needs of high-intensity die-casting production.

[0019] 3. By fixing a secondary circulation return pipe in the middle of the bottom of the main cooling heat exchange box, and under the action of the circulation control pumps on the left and right sides of the rear end of the secondary circulation return pipe, the cooling medium in the main cooling heat exchange box is circulated in an overflow manner, so as to better meet the cooling of the primary circulation cooling pipe. The secondary circulation cooling pipe fixedly connected in the middle of the top of the main cooling heat exchange box transports the overflowed cooling medium to the two auxiliary cooling heat exchange boxes, and the cooling medium is diverted through the "human" shaped heat exchange grid of the auxiliary cooling heat exchange box, and is quickly cooled under the action of the auxiliary cooling fan, thereby reducing the temperature of the cooling medium, and a guide air plate is fixedly connected on the front side wall between the two auxiliary cooling heat exchange boxes to avoid mutual influence between the main cooling fan and the auxiliary cooling fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0021] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0022] In the attached picture:

[0023] Figure 1 It is a schematic diagram of the right front axial structure of the die-casting mold frame circulating cooling system of an embodiment of the present invention.

[0024] Figure 2 It is a schematic diagram of the rear top view of the die-casting mold frame circulating cooling system of an embodiment of the present invention.

[0025] Figure 3 It is a schematic diagram of the overall disassembled structure of the die-casting mold frame circulating cooling system of an embodiment of the present invention.

[0026] Figure 4 It is a schematic diagram of the structure of a primary circulation cooling pipe of a circulating cooling system for a die-casting mold frame according to an embodiment of the present invention.

[0027] Figure 5 It is a schematic diagram of the cross-sectional structure of a mold base of a die-casting mold frame circulating cooling system according to an embodiment of the present invention.

[0028] Figure 6 It is a schematic diagram of the structure of the main cooling heat exchange box of the die-casting mold frame circulating cooling system of an embodiment of the present invention.

[0029] Figure 7 It is a schematic diagram of the connection structure of the secondary circulation cooling pipe and the auxiliary cooling heat exchange box of the die casting mold frame circulation cooling system in an embodiment of the present invention.

[0030] Figure 8 It is a schematic cross-sectional structure diagram of a secondary cooling heat exchange box of a die-casting mold frame circulating cooling system according to an embodiment of the present invention;

[0031] Fig. 9 It is a schematic diagram of the system framework structure of the die-casting mold frame circulating cooling system of an embodiment of the present invention.

[0032] Reference numerals list

[0033] 1. Main cooling heat exchange box; 101. Heat dissipation grille; 102. Primary circulation cooling interface; 103. Secondary circulation cooling interface; 2. Main cooling heat dissipation fan; 3. Primary circulation cooling pipe; 301. Spiral groove; 302. Connecting branch end; 303. Die-casting mold heat exchange pipeline; 4. Circulation pump; 5. Solenoid valve; 6. Mold base; 601. Internal heat dissipation tube cavity; 7. Secondary circulation cooling pipe; 8. Secondary circulation return pipe; 9. Circulation control pump; 10. Auxiliary cooling heat exchange box; 1001. Ventilation slot; 1002. Heat exchange grille; 1003. Wind deflector; 11. Auxiliary cooling heat dissipation fan. DETAILED DESCRIPTION

[0034] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0035] Example 1: Please refer to Figures 1 to 8 As shown:

[0036] The present invention provides a circulating cooling system for a die-casting mold frame, comprising a main cooling heat exchange box 1; two main cooling heat dissipation fans 2 are longitudinally arranged and fixedly installed on the rear side wall of the main cooling heat exchange box 1, a primary circulating cooling pipe 3 is fixedly installed inside the main cooling heat exchange box 1, a mold base 6 is fixedly connected to the front side of the primary circulating cooling pipe 3, a secondary circulating cooling pipe 7 is fixedly connected to the middle of the top of the main cooling heat exchange box 1, auxiliary cooling heat exchange boxes 10 are fixedly connected to the bottom of the left and right sides of the rear end of the secondary circulating cooling pipe 7, and auxiliary cooling heat dissipation fans 11 are fixedly installed on the opposite side walls of the two auxiliary cooling heat exchange boxes 10.

[0037] Among them, the main cooling heat exchanger box 1 is hollow, and six rectangular long holes are equidistantly opened in the middle of the front and rear side walls of the main cooling heat exchanger box 1, and a heat dissipation grille 101 connected up and down is installed in each long hole. A primary circulation cooling interface 102 is opened in the upper left corner and the lower right corner of the front side wall of the main cooling heat exchanger box 1, and a secondary circulation cooling interface 103 is opened in the middle of the top and the middle of the bottom of the main cooling heat exchanger box 1.

[0038] By adopting the above technical scheme, the main cooling heat exchange box 1 is set to be hollow, and the primary circulation cooling pipe 3 is installed in the main cooling heat exchange box 1, so that the primary circulation cooling pipe 3 is circulated and cooled by the main cooling heat exchange box 1, thereby reducing the temperature of the primary circulation cooling pipe 3, and the heat dissipation grille 101 is fixedly installed in the long strip holes penetrated through the front and rear side walls of the main cooling heat exchange box 1 to dissipate heat and cool the main cooling heat exchange box 1, and the main cooling heat dissipation fan 2 is fixed on the rear side wall of the main cooling heat exchange box 1, and the air quickly passes through the heat dissipation grille 101 fixedly installed in the main cooling heat exchange box 1 through the main cooling heat dissipation fan 2, so as to achieve a better heat dissipation effect of the main cooling heat exchange box 1.

[0039] Embodiment 2:

[0040] Based on a die-casting mold frame circulating cooling system provided in Example 1, the device sets the main cooling heat exchange box 1 into a hollow shape, and installs the primary circulating cooling pipe 3 in the main cooling heat exchange box 1, so that the primary circulating cooling pipe 3 is circulated and cooled through the main cooling heat exchange box 1, thereby reducing the temperature of the primary circulating cooling pipe 3, and a heat dissipation grille 101 is fixedly installed in the long strip holes opened through the front and rear side walls of the main cooling heat exchange box 1, so as to dissipate heat and cool the main cooling heat exchange box 1, and a main cooling heat dissipation fan 2 is fixed on the rear side wall of the main cooling heat exchange box 1, and air quickly passes through the heat dissipation grille 101 fixedly installed in the main cooling heat exchange box 1 through the main cooling heat exchanger fan 2, so as to achieve a better heat dissipation effect of the main cooling heat exchange box 1. The die-casting mold frame circulating cooling system also includes: the main body of the primary circulating cooling pipe 3 is in an "S" spiral shape, and a spiral groove 301 is opened in the transverse outer side wall of the primary circulating cooling pipe 3, and a spiral protrusion is also provided in the inner side wall of the primary circulating cooling pipe 3 corresponding to the spiral groove 301.

[0041] Among them, two connecting branch ends 302 are fixedly connected to the upper and lower ends of the front side of the primary circulation cooling pipe 3, and a die-casting mold heat exchange pipe 303 is connected between each top connecting branch end 302 and the lower connecting branch end 302 of the primary circulation cooling pipe 3. The die-casting mold heat exchange pipe 303 is "S" shaped and flat.

[0042] Among them, a circulation pump 4 is fixedly installed in the middle of the top connecting branch end 302 of the primary circulation cooling pipe 3, and a solenoid valve 5 is fixedly installed in the middle of the connecting branch end 302 at the bottom of the primary circulation cooling pipe 3.

[0043] Among them, the mold base 6 is rectangular and connected to the die-casting mold. A flat and "S"-shaped internal heat dissipation cavity 601 is opened inside the mold base 6. The internal heat dissipation cavity 601 is connected to the die-casting mold heat exchange pipe 303 at the front end of the primary circulation cooling tube 3.

[0044] By adopting the above technical solution, the "S"-shaped primary circulation cooling pipe 3 is fixedly installed on the main cooling heat exchange box 1, so that the primary circulation cooling pipe 3 can better exchange heat with the cooling medium in the main cooling heat exchange box 1, and a spiral groove 301 is opened in the transverse outer wall of the primary circulation cooling pipe 3, and a spiral protrusion is also provided in the inner wall of the primary circulation cooling pipe 3 corresponding to the spiral groove 301, which greatly increases the contact area and can better perform heat exchange cooling operation on the cooling medium in the primary circulation cooling pipe 3, so that the die-casting mold heat exchange pipeline 303 at the front end of the primary circulation cooling pipe 3 can bring an excellent cooling effect to the mold base 6, and the branch end is connected to the front side of the top of the primary circulation cooling pipe 3 The circulating pump 4 connected to the head 302 enables the cooling medium in the primary circulating cooling pipe 3 to circulate, which is used to cool the mold base 6. The bottom of the primary circulating cooling pipe 3 is connected to the solenoid valve 5 fixedly installed in the middle of the branch end 302. The solenoid valve 5 can be used to adjust the flow rate of the cooling medium according to actual needs. The "S"-shaped die-casting mold heat exchange pipe 303 adopts a special flat structure. The inner layer of the pipe is made of a metal material with high thermal conductivity, and the outer layer is wrapped with a heat insulating material, which effectively reduces the heat loss during the cooling process and improves the cooling efficiency. It has higher heat exchange efficiency and smaller volume, can quickly reduce the temperature of the cooling medium, and meet the cooling needs of high-intensity die-casting production.

[0045] Embodiment three:

[0046] Based on a die-casting mold frame circulating cooling system provided in the first embodiment, the device sets the main cooling heat exchange box 1 into a hollow shape, and installs the primary circulating cooling pipe 3 in the main cooling heat exchange box 1, so that the primary circulating cooling pipe 3 is circulated and cooled by the main cooling heat exchange box 1, thereby reducing the temperature of the primary circulating cooling pipe 3, and a heat dissipation grille 101 is fixedly installed in the long strip holes penetrating through the front and rear side walls of the main cooling heat exchange box 1, so as to perform heat dissipation cooling work on the main cooling heat exchange box 1, and a main cooling heat dissipation fan 2 is fixed on the rear side wall of the main cooling heat exchange box 1, through The air from the main cooling heat dissipation fan 2 quickly passes through the heat dissipation grille 101 fixedly installed in the main cooling heat exchange box 1 to achieve a better heat dissipation effect of the main cooling heat exchange box 1. The die-casting mold frame circulating cooling system also includes: a secondary circulation cooling pipe 7 is fixedly connected to the secondary circulation cooling interface 103 on the top of the main cooling heat exchange box 1, and a secondary circulation return pipe 8 is fixedly installed on the secondary circulation cooling interface 103 at the bottom of the main cooling heat exchange box 1. The rear end of the secondary circulation return pipe 8 is in a "T" shape, and a circulation control pump 9 is fixedly installed on the left and right sides of the rear end of the secondary circulation return pipe 8.

[0047] Among them, two auxiliary cooling heat exchange boxes 10 are symmetrically arranged, the top front sides of the two auxiliary cooling heat exchange boxes 10 are connected to the rear end bottom of the secondary circulation cooling pipe 7, and the bottom rear sides of the two auxiliary cooling heat exchange boxes 10 are connected to the rear end top of the secondary circulation return pipe 8.

[0048] Among them, the auxiliary cooling heat exchange box 10 is in a frame shape, and a through ventilation slot 1001 is opened in the middle of the left and right side walls of the auxiliary cooling heat exchange box 10. A "human" shaped heat exchange grille 1002 is fixedly installed at a medium distance in the ventilation slot 1001, and an arc-shaped air guide plate 1003 is fixedly installed at the front end of the opposite side walls of the two auxiliary cooling heat exchange boxes 10.

[0049] The middle of the guide air plates 1003 on the opposite side walls of the two auxiliary cooling heat exchange boxes 10 is located directly behind the main cooling heat exchange box 1 .

[0050] By adopting the above technical scheme, a secondary circulation return pipe 8 is fixedly connected in the middle of the bottom of the main cooling heat exchange box 1, and the cooling medium in the main cooling heat exchange box 1 is circulated in an overflow manner under the action of the circulation control pumps 9 on the left and right sides of the rear end of the secondary circulation return pipe 8, so as to better meet the cooling of the primary circulation cooling pipe 3. The secondary circulation cooling pipe 7 fixedly connected in the middle of the top of the main cooling heat exchange box 1 transports the overflowed cooling medium to the two auxiliary cooling heat exchange boxes 10, and the cooling medium is diverted by the "human" shaped heat exchange grille 1002 of the auxiliary cooling heat exchange box 10, and is quickly cooled under the action of the auxiliary cooling fan 11, thereby reducing the temperature of the cooling medium, and a guide air plate 1003 is fixedly connected on the front side wall between the two auxiliary cooling heat exchange boxes 10 to avoid mutual influence between the main cooling fan 2 and the auxiliary cooling fan 11.

[0051] Specific usage and function of this embodiment: In the present invention, the main cooling heat exchange box 1 is set to be hollow, and the primary circulation cooling pipe 3 is installed in the main cooling heat exchange box 1, so that the primary circulation cooling pipe 3 is circulated and cooled through the main cooling heat exchange box 1, thereby reducing the temperature of the primary circulation cooling pipe 3, and the heat dissipation grille 101 is fixedly installed in the long strip holes penetrating through the front and rear side walls of the main cooling heat exchange box 1, so as to perform heat dissipation cooling work on the main cooling heat exchange box 1, and the main cooling heat dissipation fan 2 is fixed on the rear side wall of the main cooling heat exchange box 1, and the air quickly passes through the heat dissipation grille 101 fixedly installed in the main cooling heat exchange box 1 through the main cooling heat dissipation fan 2, so as to achieve a better heat dissipation effect of the main cooling heat exchange box 1, and by forming an "S" shape The primary circulation cooling pipe 3 is fixedly installed in the main cooling heat exchange box 1, so that the primary circulation cooling pipe 3 can better exchange heat with the cooling medium in the main cooling heat exchange box 1, and a spiral groove 301 is opened in the transverse outer wall of the primary circulation cooling pipe 3, and a spiral protrusion is also provided in the inner wall of the primary circulation cooling pipe 3 corresponding to the spiral groove 301, which greatly increases the contact area and can better perform heat exchange cooling operation on the cooling medium in the primary circulation cooling pipe 3, so that the die-casting mold heat exchange pipeline 303 at the front end of the primary circulation cooling pipe 3 can bring an excellent cooling effect to the mold base 6, and the circulation pump 4 connected to the branch end 302 connected to the top front side of the primary circulation cooling pipe 3 can make the cooling medium in the primary circulation cooling pipe 3 The medium circulates to cool the mold base 6. The solenoid valve 5 fixedly installed in the middle of the branch end 302 is connected to the bottom of the primary circulation cooling pipe 3. The flow rate of the cooling medium can be adjusted according to actual needs through the solenoid valve 5. The "S"-shaped die-casting mold heat exchange pipe 303 adopts a special flat structure. The inner layer of the pipe is made of a metal material with high thermal conductivity, and the outer layer is wrapped with a heat insulating material, which effectively reduces the heat loss during the cooling process and improves the cooling efficiency. It has higher heat exchange efficiency and smaller volume, can quickly reduce the temperature of the cooling medium, and meets the cooling needs of high-strength die-casting production. The secondary circulation reflux pipe 8 is fixedly connected in the middle of the bottom of the main cooling heat exchange box 1, and in the secondary circulation Under the action of the circulation control pumps 9 on the left and right sides of the rear end of the return pipe 8, the cooling medium in the main cooling heat exchange box 1 is circulated in an overflow manner to better meet the cooling needs of the primary circulation cooling pipe 3. The secondary circulation cooling pipe 7 fixedly connected at the middle of the top of the main cooling heat exchange box 1 transports the overflowed cooling medium to the two auxiliary cooling heat exchange boxes 10. The cooling medium is diverted through the "human" shaped heat exchange grille 1002 of the auxiliary cooling heat exchange box 10, and is quickly cooled under the action of the auxiliary cooling fan 11, thereby reducing the temperature of the cooling medium. A guide air plate 1003 is fixedly connected to the front side wall between the two auxiliary cooling heat exchange boxes 10 to avoid mutual influence between the main cooling fan 2 and the auxiliary cooling fan 11.

[0052] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A die casting die frame circulating cooling system, characterized in that: The invention comprises a main cooling heat exchange box (1); two main cooling heat dissipation fans (2) are arranged and fixedly installed on the rear side wall of the main cooling heat exchange box (1); a primary circulation cooling pipe (3) is fixedly installed inside the main cooling heat exchange box (1); the front side of the primary circulation cooling pipe (3) is fixedly connected to a mold base (6); a secondary circulation cooling pipe (7) is fixedly connected to the middle of the top of the main cooling heat exchange box (1); the rear end of the secondary circulation cooling pipe (7) is fixedly connected to the bottom of the left and right sides; and auxiliary cooling heat dissipation fans (11) are fixedly installed on the opposite side walls of the two auxiliary cooling heat exchange boxes (10).

2. A die casting mold frame circulating cooling system as claimed in claim 1, characterized in that: The main cooling heat exchange box (1) is hollow, and six rectangular long holes are equidistantly provided in the middle of the front and rear side walls of the main cooling heat exchange box (1), and a heat dissipation grille (101) connected up and down is installed in each long hole. A primary circulation cooling interface (102) is provided in the upper left corner and the lower right corner of the front side wall of the main cooling heat exchange box (1), and a secondary circulation cooling interface (103) is provided in the middle of the top and the middle of the bottom of the main cooling heat exchange box (1).

3. A die casting mold frame circulating cooling system as claimed in claim 1, characterized in that: The main body of the primary circulation cooling pipe (3) is in an "S" spiral shape, a spiral groove (301) is provided in the transverse outer side wall of the primary circulation cooling pipe (3), and a spiral protrusion is also provided in the inner side wall of the primary circulation cooling pipe (3) corresponding to the spiral groove (301).

4. A die casting mold frame circulating cooling system as claimed in claim 1, characterized in that: Two connecting branch ends (302) are fixedly connected to the upper and lower ends of the front side of the primary circulation cooling pipe (3), and a die-casting mold heat exchange pipe (303) is connected between each top connecting branch end (302) and the lower connecting branch end (302) of the primary circulation cooling pipe (3), and the die-casting mold heat exchange pipe (303) is "S" shaped and flat.

5. A die casting mold frame circulating cooling system as claimed in claim 1, characterized in that: A circulation pump (4) is fixedly installed in the middle of the top connecting branch end (302) of the primary circulation cooling pipe (3), and a solenoid valve (5) is fixedly installed in the middle of the bottom connecting branch end (302) of the primary circulation cooling pipe (3).

6. A die casting mold frame circulating cooling system as claimed in claim 1, characterized in that: The mold base (6) is rectangular and connected to the die-casting mold. A flat and "S"-shaped internal heat dissipation cavity (601) is provided inside the mold base (6). The internal heat dissipation cavity (601) is connected to the die-casting mold heat exchange pipe (303) at the front end of the primary circulation cooling pipe (3).

7. A die casting mold frame circulating cooling system as claimed in claim 1, characterized in that: A secondary circulation cooling pipe (7) is fixedly connected to the secondary circulation cooling interface (103) at the top of the main cooling heat exchange box (1), and a secondary circulation return pipe (8) is fixedly installed on the secondary circulation cooling interface (103) at the bottom of the main cooling heat exchange box (1). The rear end of the secondary circulation return pipe (8) is in a "T" shape, and circulation control pumps (9) are fixedly installed on the left and right sides of the rear end of the secondary circulation return pipe (8).

8. A die casting mold frame circulating cooling system as claimed in claim 1, characterized in that: The auxiliary cooling heat exchange boxes (10) are symmetrically provided with two of them, the top front sides of the two auxiliary cooling heat exchange boxes (10) are connected to the rear end bottom of the secondary circulation cooling pipe (7), and the bottom rear sides of the two auxiliary cooling heat exchange boxes (10) are connected to the rear end top of the secondary circulation return pipe (8).

9. A die casting mold frame circulating cooling system as claimed in claim 1, characterized in that: The auxiliary cooling heat exchange box (10) is in the shape of a frame, and a through ventilation slot (1001) is provided in the middle of the left and right side walls of the auxiliary cooling heat exchange box (10), a "human" shaped heat exchange grille (1002) is fixedly installed at a medium distance in the ventilation slot (1001), and an arc-shaped air guide plate (1003) is fixedly installed at the front end of the opposite side walls of the two auxiliary cooling heat exchange boxes (10).

10. A die casting mold frame circulating cooling system as claimed in claim 1, characterized in that: The middle of the guide air plates (1003) on the opposite side walls of the two auxiliary cooling heat exchange boxes (10) is located directly behind the main cooling heat exchange box (1).

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