Manufacturing method of atomizing core shell, medium and equipment

Abstract

The invention provides an atomization core shell manufacturing method, medium and equipment, and the method comprises the steps that an upper die drives a barrel to enter a lower die forming groove, extrusion force is generated, stamping is conducted, the lower die forming groove is filled with the barrel, and the barrel is formed; and the lower mold forming groove comprises an annular boss forming part and a fillet forming part which is connected with the annular boss and is far away from the cylinder body. The upper die uses a first stamping speed and generates a first extrusion force, and the annular boss forming part is filled with the barrel body to form an annular boss integrally connected with the barrel body. And the forming time of the boss is set, and the fillet forming part is refilled. The first punching speed is 3 / 4-1 / 4 of the first punching speed, the second punching speed is smaller than the first punching speed, the first punching speed is 3 / 4-1 / 4 of the second punching speed, the second punching speed is smaller than the first punching speed, and the filling time is prolonged so that the fillet forming part can be evenly filled. By means of the method, the punching speed is accurately controlled.

Description

Technical Field

[0001] The present application relates to the field of atomizer core shell stamping, and in particular to a method, medium and equipment for manufacturing an atomizer core shell. Background Art

[0002] The existing atomizer core shell adopts a turning process, which makes the manufacturing time of the atomizer core shell long and wastes raw materials.

[0003] There are also some atomizer core shells that use stamping processes, such as the prior art CN113680879B. However, when the boss of the atomizer core shell is squeezed during the prior stamping process, it is easy for the stamping speed to be too fast, which may cause the material to flow rapidly in the mold and cause local excessive deformation. In addition, if the speed is too fast, the impact force may be too large, especially for thin-walled materials, which may easily cause cracking, tearing or surface damage.

[0004] However, if the stamping speed is too slow, each cycle will take too long in mass production, resulting in low overall production efficiency. In addition, if the stamping speed is too slow, the material flow rate will be insufficient, resulting in incomplete filling of the material in the mold, especially for more complex bosses or small structures. If the stamping speed is too slow, the material will stay in the mold for too long, resulting in uneven rebound during the cooling process.

[0005] Therefore, a method, medium and equipment for manufacturing an atomizer core shell with accurate control of the punching speed are needed. Summary of the invention

[0006] In view of this, it is necessary to provide a method, medium and equipment for manufacturing an atomizer core shell with accurate control of the stamping speed to solve the above problems.

[0007] The embodiment of the present application provides a method for manufacturing an atomizer core shell for thin-wall stamping of a cylinder, the method comprising the steps of:

[0008] S10: The mold stretches the plate to form a cylindrical structure;

[0009] S20: The upper mold drives the cylinder to enter the lower mold;

[0010] S30: the upper mold drives the cylinder to enter the lower mold forming groove, generates extrusion force and performs stamping, and the cylinder fills the lower mold forming groove, the lower mold forming groove includes: an annular boss forming part and a rounded corner forming part connected to the annular boss and away from the cylinder;

[0011] S40: the upper die uses a first punching speed and generates a first extrusion pressure, the cylinder fills the annular boss forming portion and forms an annular boss integrally connected to the cylinder, and the first punching speed increases the magnitude of the first extrusion pressure to reduce the forming time of the annular boss;

[0012] S50: Determine the forming time of the annular boss, and then fill the rounded corner forming part.

[0013] S60: The upper die uses the second stamping speed and generates the second extrusion force. The cylinder body fills the rounded corner forming part and forms a rounded corner integrally connected to the annular boss. Among them, the first stamping speed is 3 / 4 to 1 / 4 of the second stamping speed, the second stamping speed < the first stamping speed, and the filling time is extended to evenly fill the rounded corner forming part.

[0014] In at least one embodiment of the present application, the first stamping speed is 1 / 2 of the second stamping speed.

[0015] In at least one embodiment of the present application, a heating wire is provided in the forming groove of the lower die. The heating wire generates heat to heat the forming groove of the lower die, so as to improve the ductility of the cylinder body entering the forming groove of the lower die and prevent the cylinder body from cracking.

[0016] In at least one embodiment of the present application, obtain the volume of the cylinder body and the volume of the annular boss forming part.

[0017] According to the volume ratio of the cylinder body and the annular boss, obtain the first reduction height of the cylinder body, the first reduction height of the cylinder body.

[0018] The first reduction height of the cylinder body is the second moving distance of the upper die. Detect the second moving distance of the upper die, and the extrusion of the annular boss is completed.

[0019] In at least one embodiment of the present application, after the extrusion of the annular boss is completed, start extruding the rounded corner.

[0020] According to the volume of the cylinder body and the set volume of the rounded corner, obtain the second reduction height of the cylinder body.

[0021] The second reduction height of the cylinder body is the third moving distance of the upper die. Detect the third moving distance of the upper die, and the extrusion of the rounded corner is completed.

[0022] In at least one embodiment of the present application, obtain the first moving distance of the upper die driving the cylinder body into the lower die.

[0023] The upper die applies a constant speed to drive the cylinder body into the lower die.

[0024] According to the first moving distance and the constant speed, obtain the first moving time, and the first moving time is denoted as T1.

[0025] In at least one embodiment of the present application, when the upper die drives the cylinder body into the forming groove of the lower die, the upper die supports the inner surface of the cylinder body to limit the filling direction of the cylinder body.

[0026] When the cylinder body is located in the forming groove of the lower mold, the forming groove of the lower mold is annularly arranged on the outer surface of the cylinder body.

[0027] In at least one embodiment of the present application, after the fillet stamping is completed, the upper and lower molds are closed and the heating wire of the forming groove of the lower mold is turned off;

[0028] Gas is introduced into the diversion groove opened in the lower mold, and the gas cools the annular boss portion and the fillet forming portion;

[0029] After cooling is completed, the upper and lower molds are opened;

[0030] Among them, the diversion groove is communicated with the heating wire.

[0031] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor is caused to execute the steps of the method described in any one of the above.

[0032] A computer device includes a memory and a processor. The memory stores a computer program, and when the computer program is executed by the processor, the processor is caused to execute the steps of the method described in any one of the above.

[0033] The beneficial effects of the method for manufacturing an atomization core housing provided above:

[0034] The stamping speed is adjusted in stages according to the filling state of the forming groove of the lower mold and the flow condition of the material. Among them, the material of the thin wall of the cylinder body will form two parts when being extruded into the forming groove of the lower mold, and the two parts are an annular boss and a fillet structure;

[0035] Moreover, in the closed-loop space of the mold, it is impossible to directly obtain the flow condition of the material of the thin wall of the cylinder body entering the forming groove of the lower mold. Therefore, it is necessary to calculate the volume of the forming groove of the lower mold and the change in the volume height after the material of the thin wall of the cylinder body fills the forming groove of the lower mold to obtain the filling state of the forming groove of the lower mold. After obtaining the filling state, the time point for switching the stamping speed is obtained;

[0036] And in order to ensure rapid filling of the annular boss and to ensure uniform filling of the details of the fillet, the stamping speed is reduced and the stamping time is extended, and a heating wire is wound around the forming groove of the lower mold to heat the material entering the forming groove of the lower mold. Description of the Drawings

[0037] Figure 1 It is a flow block diagram of the method for manufacturing the atomization core housing described in the present application;

[0038] Figure 2 It is a structural sectional view of the atomization core housing described in the present application;

[0039] Figure 3 For Figure 2Partial enlarged view at A-A in [the figure];

[0040] Figure 4 Top view of the structure of the atomizing core housing described in this application;

[0041] Figure 5 Sectional view of the structure of the lower mold described in this application;

[0042] Figure 6 is Figure 5 Partial enlarged view at B-B in [the figure];

[0043] Figure 7 Schematic diagram of the computer device described in this application;

[0044] Description of main component symbols

[0045] 100. Manufacturing method of the atomizing core housing; 200. Atomizing core housing; 210. Cylinder; 220. Annular boss; 230. Fillet; 300. Computer device; 400. Lower mold; 410. Lower mold forming groove; 420. Annular boss forming part; 430. Fillet forming part; 440. Heating wire; 450. Flow guide groove. Detailed implementation manners

[0046] Next, the embodiments of this application will be described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments.

[0047] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "rear", and similar expressions used herein are only for the purpose of illustration.

[0048] A manufacturing method of an atomizing core housing for thin-wall stamping of a cylinder, the method comprising the steps of:

[0049] The mold stretches the plate to form a cylinder structure;

[0050] The upper mold drives the cylinder into the lower mold;

[0051] The upper mold drives the cylinder into the lower mold forming groove, generates an extrusion force and performs stamping, and the cylinder fills the lower mold forming groove. The lower mold forming groove includes: an annular boss forming part and a fillet forming part that is connected to the annular boss and away from the cylinder;

[0052] The upper die uses a first punching speed and generates a first extrusion pressure, the cylinder fills the annular boss forming portion and forms an annular boss integrally connected to the cylinder, and the first punching speed increases the magnitude of the first extrusion pressure to reduce the forming time of the annular boss;

[0053] Determine the forming time of the annular boss and then fill the fillet forming part;

[0054] The upper mold uses a second punching speed and generates a second extrusion pressure. The cylinder fills the rounded corner forming part and forms a rounded corner integrally connected to the annular boss. The first punching speed is 3 / 4 to 1 / 4 of the second punching speed, and the second punching speed is less than the first punching speed. The filling time is extended to evenly fill the rounded corner forming part.

[0055] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0056] See also Figures 1-7 The embodiment of the present application provides a method 100 for manufacturing an atomizer core housing, which is used for thin-wall stamping of a cylinder 210. The method comprises the following steps:

[0057] The mold stretches the plate to form a cylinder 210 structure.

[0058] The upper mold drives the cylinder 210 to enter the lower mold 400 .

[0059] The upper mold drives the cylinder 210 into the molding groove of the lower mold 400, generates extrusion force and performs stamping, and the cylinder 210 fills the molding groove of the lower mold 400. The molding groove of the lower mold 400 includes: an annular boss 220 molding part and a fillet 230 molding part connected to the annular boss 220 and away from the cylinder 210.

[0060] The upper mold uses a first punching speed and generates a first extrusion pressure. The cylinder 210 fills the annular boss 220 forming portion and forms an annular boss 220 integrally connected to the cylinder 210. The first punching speed increases the strength of the first extrusion pressure to reduce the forming time of the annular boss 220.

[0061] The molding time of the annular boss 220 is determined, and then the fillet 230 molding portion is filled.

[0062] The upper die uses a second punching speed and generates a second extrusion force, and the cylinder 210 fills the fillet 230 forming part and forms a fillet 230 integrally connected to the annular boss 220. The first punching speed is 3 / 4 to 1 / 4 of the second punching speed, and the second punching speed is less than the first punching speed, and the filling time is extended to uniformly fill the fillet 230 forming part.

[0063] Specifically, through the cooperation of the upper die and the drawing die, the stamping of the sheet is completed at least once to ensure the uniform extension of the sheet and form a uniform wall thickness. The transformation from a flat sheet to the structure of the cylinder 210 provides a basic form for subsequent stamping processing. Avoid directly using solid metal bars for turning, thereby reducing waste of raw materials.

[0064] The upper die is attached to and fixed on the inner surface of the cylinder 210, and the upper die drives the cylinder 210 into the lower die 400 to stamp the cylinder 210. Among them, the lower die 400 is a stamping die.

[0065] The upper die is attached to the inner surface of the cylinder 210 to apply a supporting force to the cylinder 210. And during extrusion, since the upper die is attached to the inner surface of the cylinder 210, the deformation of the cylinder 210 will not occur on the inner surface of the cylinder 210, thereby restricting the deformation direction of the cylinder 210.

[0066] Driven by a servo motor, the upper die moves downward to apply an axial pressure (P) to the cylinder 210.

[0067] Calculation of the pressure P:

[0068] P = F / A;

[0069] (where F is the force applied by the upper die and A is the contact area)

[0070] By adjusting the pressure value and speed of the servo press, the magnitude of the extrusion force can be precisely controlled.

[0071] Since the cylinder 210 is a metal thin-wall structure, under the pressure of the upper die, its material will expand and flow outward. This flow will be restricted by the forming groove of the lower die 400, that is, the material will fill the space in the groove along the shape of the die.

[0072] When the material enters the forming groove, it is blocked by the groove wall and the flow is restricted. The frictional force between the material molecules causes the extrusion force to further increase, making the material uniformly fill the die.

[0073] In order to reduce the deformation resistance of the material and improve the fluidity of the material, the forming groove of the lower die 400 is provided with heating wires, and the working principle is as follows: The heating temperature is controlled at 100°C to 300°C. The heat is transferred to the metal material to improve plasticity and reduce cracking caused by stress concentration during stamping. The heated metal becomes softer, is more likely to fill the die under the action of the extrusion force, and at the same time reduces the impact force.

[0074] Extrusion force F 挤压 :

[0075] F 挤压 = k×σ s ×A;

[0076] Where: k is the safety factor, and the value is 1.1 - 1.5;

[0077] σ s is the yield strength of the material (unit: MPa)

[0078] A is the contact area (unit: mmm)

[0079] The first stamping speed provides sufficient extrusion pressure to quickly fill the annular boss 220.

[0080] The second stamping speed ensures uniform filling of the rounded corner area.

[0081] Moreover, the stamping speed also determines the magnitude of the extrusion pressure, and the magnitude of the extrusion pressure determines the forming speed of the material. Therefore, a larger extrusion pressure needs to be adopted in the first stamping speed stage to quickly fill the forming part 420 of the annular boss.

[0082] The upper die is driven by a servo press to ensure stable speed and precise position control.

[0083] It moves down at a constant speed to avoid damage to the cylinder body caused by excessive impact force.

[0084] And by studying the influence of different settings of the second stamping speed on the stamping quality (filling time, defect rate) when the first stamping speed is fixed, the optimal ratio of the first stamping speed to the second stamping speed setting is determined.

[0085] Equipment and Materials

[0086] Material: 0.3mm stainless steel thin-walled cylinder

[0087] Equipment:

[0088] Servo press (maximum punching pressure 100MPa)

[0089] Transparent upper and lower dies (temperature control range 100 - 300°C)

[0090] Pressure sensor (measures extrusion pressure)

[0091] High-speed camera (observes the material filling state)

[0092] Data acquisition system (records stamping speed, pressure, filling time, defect rate)

[0093] Experimental Table 1 (the first stamping speed with fixed value, the second stamping speed as variable):

[0094]

[0095]

[0096] Experimental Table 2 (the second stamping speed is a fixed value, and the first stamping speed is a variable):

[0097]

[0098] From Experimental Table 1 and Experimental Table 2, it can be concluded that when the speed ratio (the second stamping speed / the first stamping speed) is greater than 3 / 4 and the first stamping speed is a fixed value, when the second stamping speed stamps the fillet, the filling time of the fillet is short. With a short filling time of the fillet, it is easy for the material to be rapidly filled in the fillet forming part, resulting in uneven filling and a high defect rate.

[0099] When the second stamping speed is a fixed value and the first stamping speed stamps the annular boss, the filling time of the annular boss is too long. An overly slow second stamping speed will also cause insufficient material flow velocity, resulting in incomplete filling of the material in the annular boss part and a high defect rate.

[0100] When the speed ratio (the second stamping speed / the first stamping speed) is less than 1 / 4 and the first stamping speed is a fixed value, when the second stamping speed stamps the fillet, the filling time of the fillet is too long. An overly slow second stamping speed will also cause insufficient material flow velocity, resulting in incomplete filling of the material in the fillet forming part and a high defect rate.

[0101] When the second stamping speed is a fixed value and the first stamping speed stamps the annular boss, the filling time of the annular boss is short, causing local excessive deformation. Moreover, an overly fast speed is likely to result in too large an impact force, which will cause the cylinder body to rupture. Therefore, the defect rate is relatively high.

[0102] When the speed ratio (the second stamping speed / the first stamping speed) is 3 / 4 - 1 / 4, the defect rates are similar. And when the speed ratio (the second stamping speed / the first stamping speed) is 1 / 2, it not only ensures the stamping time but also ensures the stamping force, and the defect rate is the lowest.

[0103] In a specific embodiment, a heating wire 440 is provided in a groove of the lower die 400. The heating wire 440 generates heat to heat the forming groove of the lower die 400, so as to improve the ductility of the cylinder body 210 entering the forming groove of the lower die 400 and prevent the cylinder body 210 from rupturing.

[0104] Specifically, the heating wire 440 is installed at appropriate positions in the forming groove of the lower die 400. These heating wires 440 are connected by a power supply and can be controlled to generate heat.

[0105] By controlling the power supply, the heating wire 440 starts to generate heat, and the heat is transferred to the forming groove of the lower die 400 to increase its temperature.

[0106] Since the forming groove of the lower mold 400 is heated, when the cylinder body 210 is driven by the upper mold into this groove, the material of the cylinder body 210 has better ductility at a higher temperature. Improving the ductility helps the cylinder body 210 to more smoothly fill the forming groove of the lower mold 400 and reduces the risk of rupture caused by excessive material hardness.

[0107] In a specific embodiment, the volume of the cylinder body 210 and the volume of the forming part of the annular boss 220 are obtained. According to the volume ratio of the cylinder body 210 and the annular boss 220, the first reduced height of the cylinder body 210, the first reduced height of the cylinder body 210, is obtained. According to the first reduced height, the first extrusion pressure, and the first stamping speed, the forming time of the annular boss 220 is calculated.

[0108] Specifically, the methods for obtaining the volume of the cylinder body 210 and the volume of the forming part of the annular boss 220 include: the drainage method (or replacement method), the gas expansion method, and the volume calculation method.

[0109] A plate is stretched into a cylinder body, and the dimensions of the cylinder body are also known. The dimensions of the annular boss part to be formed are known according to requirements. According to the inner radius r1 of the cylinder body, the outer radius r2 of the cylinder body, and the height h1 of the cylinder body, the volume V1 of the cylinder body is:

[0110] V1 = πr2 2 h1 - πr1 2 h1;

[0111] The annular boss is connected to the outer surface of the cylinder body. The inner radius of the annular boss is equal to the outer radius r2 of the cylinder body. The outer radius r3 of the annular boss and the height h2 of the annular boss. The volume V2 of the annular boss is:

[0112] V1 = πr3 2 h2 - πr2 2 h2;

[0113] After the first stamping and extrusion, the material of the cylinder body will flow into the forming groove of the annular boss. According to the volume of the cylinder body and the volume of the forming part of the annular boss, the reduced height of the cylinder body material flowing into the forming part of the annular boss can be obtained. The reduced height is the first reduced height h 缩小 、;

[0114] h 缩小 = h1 - (r3 2 - r2 2 ) × h2) / (r2 2 - r1 2 );

[0115] When the cylinder body 210 is extruded into the forming part of the annular boss 220, the upper mold will drive the cylinder body 210 to move. During the mold manufacturing process, according to the first reduced height of the cylinder body 210, the moving distance of the upper mold is set.

[0116] It is realized through the control system of die manufacturing equipment (such as injection molding machines, stamping machines, etc.). Control the moving distance of the upper die to ensure the correct forming of the annular boss 220. Improve production efficiency and product quality, and reduce the scrap rate.

[0117] The methods for monitoring the moving distance of the upper die mainly include using precision measuring equipment such as mechanical displacement sensors, laser rangefinders, magnetic grating rulers or grating rulers, and performing position feedback and monitoring through the built-in control system of the die manufacturing equipment. Real-time monitor the moving distance of the upper die. When the moving distance reaches the preset value (the first reduction height), it means that the extrusion of the annular boss 220 is completed.

[0118] In a specific embodiment, after the extrusion of the annular boss 220 is completed, the extrusion of the rounded corner 230 begins. According to the volume of the cylinder body 210 and the set volume of the rounded corner 230, the second reduction height of the cylinder body 210 is obtained. The second reduction height of the cylinder body 210 is the third moving distance of the upper die. Detect the third moving distance of the upper die, and the extrusion of the rounded corner 230 is completed.

[0119] After the extrusion of the annular boss 220 is completed, the extrusion of the cylinder body 210 into the rounded corner 230 begins. The extruded cylinder body 210 enters the rounded corner 230 from the annular boss 220.

[0120] Obtain the volume of the rounded corner 230 through the drainage method (or displacement method), gas expansion method and volume calculation method, and calculate the second reduction height of the cylinder body based on the volume V1 of the cylinder body obtained in the previous step.

[0121] The upper die will determine the distance it needs to move, that is, the third moving distance, according to the second reduction height calculated previously. Then, the upper die will move this distance at the second stamping speed while continuously applying the second extrusion force until the formed part of the rounded corner 230 is completely filled and a structure integrally connected to the annular boss 220 is formed. During this process, it is necessary to real-time monitor the moving distance of the upper die to ensure that it accurately reaches the predetermined position, thereby completing the extrusion of the rounded corner 230.

[0122] The methods for monitoring the moving distance of the upper die mainly include using precision measuring equipment such as mechanical displacement sensors, laser rangefinders, magnetic grating rulers or grating rulers, and performing position feedback and monitoring through the built-in control system of the die manufacturing equipment. Real-time monitor the moving distance of the upper die. When the moving distance reaches the preset value (the second reduction height), it means that the extrusion of the rounded corner 230 is completed.

[0123] In a specific embodiment, the first moving distance of the upper die driving the cylinder 210 into the lower die 400 is obtained. The upper die applies a constant speed to drive the cylinder 210 into the lower die 400. Based on the first moving distance and the constant speed, the first moving time is obtained, and the first moving time is denoted as T1.

[0124] Specifically, in the die design stage, the dimensions and shape of the cylinder 210 and the forming groove dimensions of the lower die 400 are considered to determine the distance that the upper die needs to move, that is, the first moving distance. This distance is the basis for subsequent control of the moving speed and time of the upper die.

[0125] After determining the first moving distance, the upper die will start to move at a constant speed to drive the cylinder 210 into the lower die 400. This constant speed is determined according to the properties of the material, the die design, and the required stamping effect. In actual operation, this constant speed can be achieved by adjusting the parameters of the drive system. The purpose of applying a constant speed is to ensure that the cylinder 210 can smoothly and evenly enter the forming groove of the lower die 400, avoiding material deformation or uneven filling caused by speed changes.

[0126] The first moving distance and the constant speed will be used to calculate the time required for the upper die to complete the first move, that is, the first moving time T1. This calculation process can be achieved through a simple physical formula (distance = speed × time). In actual operation, this time can be automatically calculated and monitored by programming or setting a timer.

[0127] Obtaining the first moving time T1 is one of the key parameters for subsequent control of the stamping process. It can help us understand the speed and time of the upper die entering the lower die 400, so as to better control the extrusion pressure and filling state during the stamping process. At the same time, T1 can also be used as a basis for subsequent adjustment of the stamping speed and extrusion pressure to ensure the forming quality and consistency of the final product.

[0128] In a specific embodiment, when the upper die drives the cylinder 210 into the forming groove of the lower die 400, the upper die supports the inner surface of the cylinder 210 to limit the filling direction of the cylinder 210. When the cylinder 210 is located in the forming groove of the lower die 400, the forming groove of the lower die 400 is annularly arranged on the outer surface of the cylinder 210.

[0129] During the process of driving the cylindrical body 210 into the forming groove of the lower die 400 by the upper die, the support for the inner surface of the cylindrical body 210 is ensured. This supporting effect is usually achieved through the adapted shape inside the upper die, which matches the inner surface of the cylindrical body 210, thereby providing a stable supporting force when the cylindrical body 210 is pushed into the lower die 400. This support not only helps to maintain the shape stability of the cylindrical body 210, but also effectively restricts the deformation direction of the cylindrical body 210 during the filling process, ensuring that the material is filled along the predetermined path.

[0130] When the cylindrical body 210 is successfully pushed into the forming groove of the lower die 400, the forming groove of the lower die 400 is designed as an annular structure, which closely fits the outer surface of the cylindrical body 210. This design ensures that the cylindrical body 210 is subjected to uniform external pressure during the filling process, which helps the material to be evenly distributed between the inner and outer surfaces of the cylindrical body 210, forming a stable structure. At the same time, the design of the annular forming groove also takes into account the uniformity of material flow and filling efficiency.

[0131] Complete the stamping of the forming part of the rounded corner 230 of the atomizing core housing 200. Subsequently, the upper and lower dies 400 are completely closed to ensure the sealing inside the die, and at the same time, the heating wire 440 for heating in the forming groove of the lower die 400 is turned off. Turning off the heating wire 440 not only provides a stable cooling environment for the subsequent cooling step, which helps to control the cooling speed and uniformity, but also avoids the change of material properties or structural damage caused by continuous heating during the cooling process.

[0132] In a specific embodiment, after the stamping of the rounded corner 230 is completed, the upper and lower dies 400 are closed and the heating wire 440 in the forming groove of the lower die 400 is turned off;

[0133] Gas is introduced into the diversion groove 450 opened in the lower die 400, and the gas cools the annular boss 220 part and the forming part of the rounded corner 230. After cooling is completed, the upper and lower dies 400 are opened. Among them, the diversion groove 450 is communicated with the heating wire 440.

[0134] After the upper and lower dies 400 are closed and the heating wire 440 is turned off, cooling gas is introduced into the die through the preset diversion groove 450. The diversion groove 450 is usually designed to be directly communicated with the forming part of the annular boss 220 and the forming part of the rounded corner 230 to ensure that the cooling gas can directly act on the forming groove of the lower die 400. The types, flow rates and temperatures of the cooling gas and other parameters need to be adjusted according to the specific materials and forming requirements.

[0135] By directly introducing the cooling gas, the temperature in the forming groove of the lower die 400 is reduced, and the temperatures of the annular boss 220 and the rounded corner 230 located in the forming groove of the lower die 400 are reduced, which helps to form a stable microstructure and improve the mechanical properties of the product. The diversion groove 450 avoids problems such as deformation or cracks caused by uneven cooling.

[0136] The connectivity between the diversion channel 450 and the heating wire 440 ensures that when the cooling gas is introduced into the mold, it can exchange heat with the heat generated by the heating wire 440, thereby accelerating the cooling process. This design not only improves the cooling efficiency but also helps to maintain the temperature uniformity inside the mold.

[0137] This specific embodiment also provides a computer device, including a memory and a processor. The memory stores a computer program, and when the computer program is executed by the processor, the processor is caused to execute the steps of the method as described above.

[0138] This specific embodiment also provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the processor is caused to execute the steps of the method as described above.

[0139] The computer device 300 may specifically be a terminal or a server. For example Figure 3As shown in the figure, the computer device includes a processor, a memory, and a network interface connected via a system bus. Among them, the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system and may also store a computer program. When the computer program is executed by the processor, the processor can implement the method described in this embodiment. The internal memory may also store a computer program. When the computer program is executed by the processor, the processor can execute the method described in this embodiment. Those of ordinary skill in the art can understand that all or part of the processes of implementing the methods in the above embodiments can be completed by instructing relevant hardware through a computer program. The program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it may include the processes of the embodiments of the above methods. Among them, any reference to a memory, storage, database, or other medium used in the embodiments provided in this application may include non-volatile and / or volatile memories. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or an external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and Rambus dynamic RAM (RDRAM), etc.

[0140] Therefore, the beneficial effects of a manufacturing method 100 of an atomizing core housing 200 are as follows:

[0141] By adjusting the stamping speed in stages according to the filling state of the forming groove of the lower die 400 and the flow condition of the material. Among them, the material of the thin wall of the cylinder 210 will be extruded into the forming groove of the lower die 400 and form two parts, which are the annular boss 220 and the fillet 230 structures.

[0142] Moreover, in the closed-loop space of the die, it is impossible to directly obtain the flow condition between the material of the thin wall of the cylinder 210 entering the forming groove of the lower die 400. Therefore, it is necessary to calculate the volume of the forming groove of the lower die 400 and the change in the volume height after the material of the thin wall of the cylinder 210 fills the forming groove of the lower die 400 to obtain the filling state of the forming groove of the lower die 400. After obtaining the filling state, the time point for switching the stamping speed is determined.

[0143] And in order to ensure the rapid filling of the annular boss 220, in order to ensure the uniform filling of the details of the fillet 230, the stamping speed is reduced, the stamping time is extended, and a heating wire 440 is wound around the forming groove of the lower die 400 to heat the material entering the forming groove of the lower die 400.

[0144] The above are only the embodiments of the present application. It should be noted here that for those of ordinary skill in the art, improvements can be made without departing from the creative concept of the present application, but these all fall within the protection scope of the present application.

Claims

1. A method for manufacturing an atomizer core shell, used for thin-wall stamping of a cylinder, characterized in that: The method comprises the steps of: The die stretches the sheet to form a cylindrical structure; The upper mold drives the cylinder into the lower mold; The upper die drives the cylinder into the lower die forming groove, generates extrusion force and performs stamping, and the cylinder fills the lower die forming groove, and the lower die forming groove includes: an annular boss forming part and a rounded corner forming part connected to the annular boss and away from the cylinder; The upper die uses a first punching speed and generates a first extrusion pressure, the cylinder fills the annular boss forming portion and forms an annular boss integrally connected to the cylinder, and the first punching speed increases the magnitude of the first extrusion pressure to reduce the forming time of the annular boss; Determine the forming time of the annular boss and then fill the fillet forming part; The upper mold uses a second punching speed and generates a second extrusion pressure. The cylinder fills the rounded corner forming part and forms a rounded corner integrally connected to the annular boss. The first punching speed is 3 / 4 to 1 / 4 of the second punching speed, and the second punching speed is less than the first punching speed. The filling time is extended to evenly fill the rounded corner forming part.

2. The method for manufacturing the atomizer core housing according to claim 1, characterized in that: The "first punching speed is 3 / 4 to 1 / 4 of the second punching speed, the second punching speed is less than the first punching speed, and the filling time is extended to uniformly fill the rounded corner forming part" includes: The first punching speed is 1 / 2 of the second punching speed.

3. The method for manufacturing the atomizer core housing according to claim 1, characterized in that: The "upper mold drives the cylinder to enter the lower mold forming groove, generate extrusion force and fill the lower mold forming groove" includes the following steps: The lower mold forming groove is provided with a heating wire, which generates heat to heat the lower mold forming groove to improve the ductility of the cylinder entering the lower mold forming groove and prevent the cylinder from breaking.

4. The method for manufacturing the atomizer core housing according to claim 1, characterized in that: The "determining the molding time of the annular boss and then filling the fillet molding portion" comprises the steps of: Obtaining the volume of the cylinder and the volume of the annular boss forming portion; According to the volume ratio of the cylinder and the annular boss, the first reduced height of the cylinder is obtained; The first reduction height of the cylinder is the second moving distance of the upper mold. After the second moving distance of the upper mold is detected, the extrusion of the annular boss is completed.

5. The method for manufacturing the atomizer core housing according to claim 4, characterized in that: The "upper die uses a second punching speed and generates a second extrusion force, and the cylinder fills the fillet forming portion and forms a fillet integrally connected to the annular boss" comprises the following steps: After the annular boss is extruded, the fillet is extruded; According to the volume of the cylinder and the set volume of the fillet, the second reduction height of the cylinder is obtained; The second reduction height of the cylinder is the third movement distance of the upper die. After the third movement distance of the upper die is detected, the rounded corner extrusion is completed.

6. The method for manufacturing an atomizer core housing according to claim 1, characterized in that: The "upper mold drives the cylinder to enter the lower mold" comprises the steps of: Obtain the first moving distance of the upper mold driving cylinder into the lower mold; The upper die applies a constant speed to drive the cylinder into the lower die; According to the first moving distance and the constant speed, the first moving time is obtained, and the first moving time is recorded as T1.

7. The method for manufacturing an atomizer core housing according to claim 1, characterized in that: The "upper mold drives the cylinder to enter the lower mold" comprises the steps of: When the upper mold drives the cylinder to enter the forming groove of the lower mold, the upper mold supports the inner surface of the cylinder to limit the filling direction of the cylinder; When the cylinder is located in the lower mold forming groove, the lower mold forming groove is annularly arranged on the outer surface of the cylinder.

8. The method for manufacturing an atomizer core housing according to claim 1, characterized in that: The method further comprises the steps of: After the rounded corners are stamped, the upper and lower molds are closed and the heating wire of the lower mold forming slot is closed; The gas is passed into the guide groove provided in the lower mold, and the gas cools the annular boss part and the rounded corner forming part; After cooling, open the upper and lower molds; Wherein, the guide groove is connected with the heating wire.

9. A computer-readable storage medium, characterized in that: A computer program is stored, and when the computer program is executed by a processor, the processor is caused to perform the steps of the method according to any one of claims 1 to 8.

10. A computer device, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method according to any one of claims 1 to 8.

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