Cooling device for silicon steel sheet stamping die

Abstract

The utility model discloses a silicon steel sheet stamping die cooling device, which relates to the technical field of stamping die cooling, and comprises an upper die, a lower die, a water circulation system and an air supply component, a plurality of stamping modules are vertically mounted below the connecting plate; a lower guide sleeve is arranged on the upper end surface of the lower die; according to the utility model, the water circulation system and the air supply assembly are additionally arranged on the basis of the existing mold; the water circulation system sprays water to the lower side end face of the stamping module through a spray head for forced water cooling, water circulates through a spray cavity, a water pump and a water pipe, and the heat dissipation effect is improved by combining a spiral heat dissipation structure of the water pipe with a heat dissipation fan; the air supply assembly achieves drying and air cooling on the lower side end face of the stamping module through an air hole and an air supply device. The device obviously improves the cooling effect, prolongs the service life of the die, and improves the punching quality of silicon steel sheets.

Description

TECHNICAL FIELD

[0001] The utility model relates to stamping die cooling technical field especially relates to a silicon steel sheet stamping die cooling device. BACKGROUND

[0002] In the field of silicon steel sheet stamping, the performance of silicon steel sheet stamping die plays a key role in product quality and production efficiency. At present, the traditional structure of silicon steel sheet stamping die mainly includes an upper die and a lower die. The upper die is provided with a hydraulic cylinder, the piston rod of which is vertically downward, connected with a connecting plate, and a plurality of stamping modules for punching, embossing and blanking are fixed below the connecting plate. The upper guide sleeve on the lower end surface of the upper die cooperates with the lower guide sleeve on the upper end surface of the lower die to guide the precise up-down movement of the stamping modules.

[0003] However, during the stamping process, the die generates a large amount of heat due to friction and extrusion. The heat is concentrated on the lower side surface of the stamping module which directly contacts the silicon steel sheet. Although the upper die is provided with traditional air cooling or simple water cooling pipes to cool the main part of the stamping module, the heat concentrated on the lower side surface is not effectively treated. This not only accelerates the wear of the die and reduces the service life of the die, but also affects the stamping quality of the silicon steel sheet, resulting in the decrease of product size precision and surface quality. In view of this, we propose a silicon steel sheet stamping die cooling device. SUMMARY

[0004] The main purpose of the utility model is to provide a silicon steel sheet stamping die cooling device which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A silicon steel sheet stamping die cooling device, comprising an upper die, a lower die, a water circulation system and a gas supply assembly, the upper die is fixedly installed with a hydraulic cylinder, the piston rod of the hydraulic cylinder is vertically downward, a connecting plate is fixedly installed below the piston rod, a plurality of stamping modules for punching, embossing and blanking are vertically fixedly installed below the connecting plate, a plurality of upper guide sleeves for guiding the up-down movement of the stamping modules are fixedly installed on the lower end surface of the upper die, a plurality of lower guide sleeves corresponding to the stamping modules are provided on the upper end surface of the lower die,

[0007] The water circulation system comprises a plurality of nozzles vertically upwardly aligned with the lower side surface of the stamping module, a spray chamber, a water pump and a plurality of water pipes, the spray chamber is arranged below the plurality of lower guide sleeves in the lower die, the water inlet of the water pump is communicated with the bottom of the spray chamber through the water pipe, and the water outlet of the water pump is communicated with the plurality of nozzles through the plurality of water pipes;

[0008] The air supply assembly comprises an air hole arranged on the outer ring of the lower guide sleeve and an air supply device connected with the air hole.

[0009] Preferably, the air supply device comprises an air compressor and an air conveying pipeline, an air outlet of the air compressor is communicated with the air hole through the air conveying pipeline, and a flow regulating valve and a pressure regulating valve are arranged on the air conveying pipeline.

[0010] Preferably, the water inlet of the water pump is communicated with the bottom of the spraying cavity, the spiral heat dissipation structures are arranged on the plurality of water pipes, and the heat dissipation fan is fixedly installed on the outer side of the lower die and faces the spiral heat dissipation structures on the plurality of water pipes.

[0011] Preferably, the water circulation system further comprises a filter, and the filter is arranged on the water pipe between the water inlet of the water pump and the spraying cavity.

[0012] Preferably, a plurality of non-contact temperature sensors for measuring the temperature of the lower side end face of the stamping module are fixedly installed in the lower die.

[0013] Preferably, the controller is connected with the non-contact temperature sensor, the water pump and the air supply device.

[0014] Preferably, a liquid level sensor is arranged in the spraying cavity.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model mainly solves the problem of poor cooling effect of the traditional silicon steel sheet stamping die, and the beneficial effects and technical backgrounds are as follows:

[0017] 1. The utility model discloses a forced water cooling system of water circulation, utilizes the spray head to directly spray water cooling to the lower side end face of the stamping module, can quickly take away the concentrated heat, cooperates the spiral heat dissipation structure and the heat dissipation fan, further enhances the heat dissipation effect, and the air supply assembly carries out air cooling and drying when the stamping module rises and resets, reduces the heat residue, and these measures effectively reduce the wear and tear of the die due to high temperature, prolong the service life of the die.

[0018] 2. The utility model discloses that the non-contact temperature sensor real-time monitoring the temperature of the lower side end face of the stamping module, and the data are transmitted to the controller, and the controller automatically adjusts the water pump flow and the air flow parameter of the air supply device according to the temperature, realizes accurate temperature control, and the stable temperature environment avoids the deformation of the silicon steel sheet due to the overheating of the stamping module, guarantees the dimensional accuracy of the stamping part, simultaneously, reduces the surface flaw of the silicon steel sheet due to the excessively high surface temperature of the stamping module, improves the surface quality.

[0019] 3. The utility model discloses a water circulation system and gas supply assembly, and is characterized in that the lower side end face of the stamping module is cooled pertinently, the water circulation system adopts forced water cooling, and water is directly sprayed on the heat source, the gas supply assembly is air-cooled and dried, the deficiency of the traditional cooling mode is made up, the cooling system of the mould is improved, and the cooling efficiency and effect are improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the whole structure schematic diagram of the utility model, and

[0021] Figure 2 It is the partial section view of lower mould in the utility model,

[0022] Figure 3 It is the utility model Figure 2 A circle's enlarged view.

[0023] Its characterized in that: 1, upper die; 2, lower die; 3, hydraulic oil cylinder; 4, gas supply assembly; 5, connecting plate; 6, stamping module; 7, upper guide sleeve; 8, lower guide sleeve; 9, water circulation system; 10, spray head; 11, spray cavity; 12, water pump; 13, water pipe; 14, air hole; 15, liquid level sensor; 16, filter; 17, gas supply device; 18, air compressor; 19, gas conveying pipeline; 20, flow regulating valve; 21, pressure regulating valve; 22, controller; 23, spiral heat dissipation structure; 24, non-contact temperature sensor; 25, heat dissipation fan. DETAILED DESCRIPTION

[0024] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0025] As Figures 1-3 shown, a silicon steel sheet stamping die cooling device, including upper die 1 and lower die 2, upper die 1 is fixedly installed with hydraulic oil cylinder 3, the piston rod of hydraulic oil cylinder 3 is vertically set down, the lower fixed installation of piston rod has connecting plate 5, the lower vertical fixed installation of connecting plate 5 has a plurality of stamping modules 6 for punching, embossing and blanking respectively, the lower end surface of upper die 1 is fixedly installed with a plurality of upper guide sleeves 7 for guiding the up-down movement of stamping module 6, and the upper end surface of lower die 2 is provided with a plurality of lower guide sleeves 8 corresponding to stamping module 6.

[0026] It should be noted that the above content is prior art, and the upper die 1 is provided with a traditional air-cooled or simple water-cooled pipeline to cool the main part of the stamping module 6, and the application is innovated on the basis of the above structure, and a water circulation system 9 and a gas supply assembly 4 are added to realize efficient cooling of the lower side end face of the stamping module 6.

[0027] In the embodiment, the lower mold 2 is fixedly installed with a water circulation system 9 and a gas supply assembly 4 which are used in cooperation. The water circulation system 9 mainly sprays water on the lower side end face of the stamping module 6 in the lower guide sleeve 8 through the spray head 10, that is, forced water cooling, so as to cool the lower side end face of the stamping module 6. The gas supply assembly 4 is arranged above the spraying cavity 11 and is mainly used for drying the lower side end face of the stamping module 6 and can also be used for air cooling, secondarily evaporating water vapor and thirdly absorbing heat and cooling. A plurality of non-contact temperature sensors 24 for measuring the temperature of the lower side end face of the stamping module 6 are fixedly installed in the lower mold 2.

[0028] In the embodiment, the water circulation system 9 includes a plurality of spray heads 10 vertically upwardly aligned with the lower side end face of the stamping module 6, a spraying cavity 11, a water pump 12 and a plurality of water pipes 13. The spraying cavity 11 is arranged below the plurality of lower guide sleeves 8 in the lower mold 2 and is filled with pure water. The pure water has less impurities, can reduce corrosion and the surface of the stamping module 6 is coated with an anti-corrosion coating. A liquid level sensor 15 is arranged in the spraying cavity 11 and is mainly used for monitoring the water level in the spraying cavity 11 in real time to prevent too much or too little water and ensure that the water circulation system 9 can be normally used. The water inlet of the water pump 12 is communicated with the bottom of the spraying cavity 11 through the water pipes 13 and the water outlet of the water pump 12 is communicated with the plurality of spray heads 10 through the plurality of water pipes 13. A spiral heat dissipation structure 23 is arranged on the plurality of water pipes 13 which are communicated with the bottom of the spraying cavity 11. The spiral heat dissipation structure 23 is mainly used for increasing the length of the water pipes 13, increasing the heat dissipation stroke and accelerating heat dissipation in cooperation with the following heat dissipation fan 25. A heat dissipation fan 25 is fixedly installed on the outside of the lower mold 2 and faces the spiral heat dissipation structure 23 on the plurality of water pipes 13. The water circulation system 9 further includes a filter 16 which is arranged on the water pipes 13 between the water inlet of the water pump 12 and the spraying cavity 11.

[0029] In the embodiment, the gas supply assembly 4 includes the air holes 14 arranged on the outer circle of the lower guide sleeve 8 and the gas supply device 17 connected with the air holes 14. The gas supply device 17 includes an air compressor 18 and a gas delivery pipeline 19. The air outlet of the air compressor 18 is communicated with the air holes 14 through the gas delivery pipeline 19. A flow regulating valve 20 and a pressure regulating valve 21 are arranged on the gas delivery pipeline 19 and are used for adjusting the flow and pressure of the air flow entering the air holes 14.

[0030] In the embodiment, a controller 22 is fixedly arranged on one side of the lower mold 2. The controller 22 is connected with the non-contact temperature sensor 24, the water pump 12 and the gas supply device 17. According to the temperature data monitored by the non-contact temperature sensor 24, the flow of the water pump 12 and the air flow parameters of the gas supply device 17 are automatically adjusted.

[0031] The utility model discloses before starting, first inject pure water in the spraying cavity 11, and pure water has few impurities, can reduce the corrosion to the mould and device, provides good foundation for cooling operation, and liquid level sensor 15 real -time monitoring the water level in spraying cavity 11, ensure that the water level is in proper range, guarantee water circulation system 9 normal operation, select the non -contact temperature sensor 24 of MX4 series and install in lower mould 2, for accurate measurement stamping module 6 downside end surface temperature, can select the controller 22 of Siemens S7-1200 series and set up in one side of upper mould 1, with non -contact temperature sensor 24, CR series water pump 12 and GA series air compressor 18 are connected, realize the intelligent control to whole cooling process.

[0032] The utility model discloses starting stamping operation, and stamping module 6 moves down with the piston rod of hydraulic cylinder 3, at this moment, water circulation system 9 starts working, and water pump 12 starts, and the water in spraying cavity 11 is extracted through water pipe 13, and after spiral heat dissipation structure 23, by the vertical upward spray of shower nozzle 10 to the downside end surface of stamping module 6, carries out forced water cooling to it, and the concentrated heat is taken away quickly, and after water spraying, falls into spraying cavity 11, and is extracted again by water pump 12 and is used circularly, in this process, the filter 16 of FFP2 series plays a role, filters the impurity in water, prevents the blockage of water pipe 13 and shower nozzle 10, and ensures that water circulation system 9 runs stably;

[0033] Meanwhile, the heat dissipation fan 25 of AFB0624HH model outside lower mould 2 blows against spiral heat dissipation structure 23, accelerates the heat dissipation, and enhances the cooling effect.

[0034] When stamping module 6 starts to rise and reset, water circulation system 9 stops running, and air supply assembly 4 starts working, and air compressor 18 generates compressed air, and is delivered to air hole 14 through gas delivery pipeline 19, and flow regulating valve 20 and pressure regulating valve 21 on gas delivery pipeline 19 can adjust the flow and pressure of air flow, so that the blown air flow can dry the downside end surface of stamping module 6, and can also assist air cooling, and accelerate water vapor evaporation, and further absorb heat.

[0035] In the stamping process, non -contact temperature sensor 24 continuously monitors the downside end surface temperature of stamping module 6, and real -time transmission temperature data to controller 22, when temperature is too high, controller 22 controls water pump 12 to increase water flow, and improves heat dissipation efficiency, simultaneously, adjusts the working state of air compressor 18, and increases the air supply flow and pressure, and enhances the air cooling and drying effect, on the contrary, when temperature is lower, controller 22 correspondingly reduces the water flow of water pump 12 and the air supply flow of air compressor 18, realizes accurate temperature control, ensures that stamping module 6 is always in the proper working temperature range, improves the service life of mould and the stamping quality of silicon steel sheet.

[0036] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A cooling device for a silicon steel sheet stamping die, comprising an upper die (1) and a lower die (2), wherein a hydraulic cylinder (3) is fixedly installed on the upper die (1), the piston rod of the hydraulic cylinder (3) is vertically downward, a connecting plate (5) is fixedly installed below the piston rod, and a plurality of stamping modules (6) for punching, embossing and blanking are vertically fixedly installed below the connecting plate (5), a plurality of upper guide sleeves (7) for guiding the stamping modules (6) to move up and down are fixedly installed on the lower end face of the upper die (1), and a plurality of lower guide sleeves (8) corresponding to the stamping modules (6) are provided on the upper end face of the lower die (2), characterized in that, Also includes: Water circulation system (9) and air supply components (4); The water circulation system (9) includes several nozzles (10) facing upwards and aligned with the lower end face of the stamping module (6), a spray chamber (11), a water pump (12), and several water pipes (13). The spray chamber (11) is located below several lower guide sleeves (8) in the lower mold (2). The inlet of the water pump (12) is connected to the bottom of the spray chamber (11) through the water pipe (13), and the outlet of the water pump (12) is connected to several nozzles (10) through several water pipes (13). The air supply assembly (4) includes an air hole (14) disposed on the outer ring of the lower guide sleeve (8) and an air supply device (17) connected to the air hole (14).

2. The silicon steel sheet stamping die cooling device according to claim 1, characterized in that: The gas supply device (17) includes an air compressor (18) and a gas delivery pipe (19). The outlet of the air compressor (18) is connected to the air hole (14) through the gas delivery pipe (19), and the gas delivery pipe (19) is equipped with a flow regulating valve (20) and a pressure regulating valve (21).

3. The silicon steel sheet stamping die cooling device according to claim 1, characterized in that: The water inlet of the water pump (12) is connected to the bottom of the spray chamber (11). Several water pipes (13) are provided with a spiral heat dissipation structure (23), and a cooling fan (25) is fixedly installed on the outside of the lower mold (2) facing the spiral heat dissipation structure (23) on the several water pipes (13).

4. The silicon steel sheet stamping die cooling device according to claim 1, characterized in that: The water circulation system (9) also includes a filter (16), which is installed on the water pipe (13) between the water inlet of the water pump (12) and the spray chamber (11).

5. The silicon steel sheet stamping die cooling device according to claim 1, characterized in that: Several non-contact temperature sensors (24) for measuring the temperature of the lower end face of the stamping module (6) are fixedly installed inside the lower mold (2).

6. The silicon steel sheet stamping die cooling device according to claim 5, characterized in that: A controller (22) is fixedly installed on one side of the upper mold (1). The controller (22) is connected to a non-contact temperature sensor (24), a water pump (12), and an air supply device (17).

7. The silicon steel sheet stamping die cooling device according to claim 1, characterized in that: A liquid level sensor (15) is installed inside the spray chamber (11).

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