Mobile phone frame production line and processing technology

Abstract

The invention relates to the technical field of mobile intelligent terminal accessory machining, in particular to a mobile phone frame production line and a machining technology. The mobile phone frame production line comprises a heating furnace, a hot rolling device, a straightening device, a cutting device and a conveying device. The heating furnace is used for heating materials into a preset temperature interval; the hot rolling device is used for hot rolling the heated material; the straightening device is used for straightening the hot-rolled material; the cutting device is used for cutting the straightened materials into sheets; the conveying device is used for conveying materials to sequentially pass through the heating furnace, the hot-rolling device, the straightening device and the cutting device. The production system of the mobile phone frame can improve the production efficiency, reduce the loss of materials and improve the utilization rate of the materials.

Description

Technical Field

[0001] The present invention relates to the technical field of processing accessories for mobile intelligent terminals, and in particular to a production line and processing technology for a mobile phone frame. Background Art

[0002] The processing technology of mobile intelligent terminal accessories covers multiple links such as structural design, precision mold development, injection molding, spray printing, quality inspection, etc. These links are closely linked to ensure that every step from design to final product can meet high quality standards. With the increase in product appearance requirements and complexity, the types of components of protective accessories are constantly enriched. In the process of structural design and mold development, it is necessary to comprehensively consider aspects such as material selection, internal structure, and processing procedures.

[0003] However, the existing technology has the problems of low processing efficiency and large material loss. Summary of the invention

[0004] The purpose of the present invention includes providing a production line and processing technology for a mobile phone frame, which can reduce the loss of materials and improve the utilization rate of materials.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, the present invention provides a mobile phone frame production line, comprising:

[0007] Heating furnace, which is used to heat materials to a preset temperature range;

[0008] Hot rolling device, the hot rolling device is used for hot rolling the heated materials;

[0009] Straightening device, which is used to straighten the material after hot rolling;

[0010] A cutting device, the cutting device is used to cut the straightened material into sheets; and

[0011] The conveying device is used to convey the materials through the heating furnace, hot rolling device, straightening device and cutting device in sequence.

[0012] In an optional embodiment, the hot rolling device includes a hot rolling roller group, a first frame and at least one cooling box; the hot rolling roller group is rotatably connected to the first frame;

[0013] The cooling box is provided with an opening, an air inlet and a negative pressure air outlet; the opening is used for allowing the hot rolling roller group to pass through; the cooling box cover is arranged on at least a part of the hot rolling roller group; the air inlet is used to communicate with the external heat dissipation pipeline to introduce the heat dissipation airflow into the cooling box, and the negative pressure air outlet is used to discharge the airflow after heat exchange with the hot rolling roller group.

[0014] In an optional embodiment, the hot rolling roller group includes at least one first hot rolling roller, at least one second hot rolling roller and at least one guide roller;

[0015] The first hot rolling roller, the second hot rolling roller and the two guide rollers are all rotatably connected to the first frame; the first hot rolling roller and the second hot rolling roller are arranged at intervals along a preset direction; the first hot rolling roller and the second hot rolling roller are distributed on the same side of the material, and the first hot rolling roller and the guide roller are distributed on both sides of the material; the first hot rolling roller, the second hot rolling roller and the guide roller are all used to contact with the material;

[0016] The maximum diameter of the first hot rolling roller is equal to the maximum diameter of the second hot rolling roller; the first hot rolling roller and the second hot rolling roller have the same rotation direction; and the first hot rolling roller and the guide roller have opposite rotation directions.

[0017] In an optional embodiment, the number of the cooling box, the first hot rolling roller, the second hot rolling roller and the guide roller is multiple; the multiple first hot rolling rollers and the multiple second hot rolling rollers are arranged at intervals along a preset direction;

[0018] Each first hot rolling roller, each second hot rolling roller and each guide roller are equipped with a cooling box.

[0019] In an optional embodiment, the hot rolling device includes a lifting assembly and a plurality of temperature sensors;

[0020] The lifting assembly is connected to the first frame, and is connected to the first hot rolling roller, the second hot rolling roller, and the guide roller; the lifting assembly is used to drive the first hot rolling roller, the second hot rolling roller, and the guide roller to approach or move away from the material;

[0021] A plurality of temperature sensors are connected to the first frame at intervals along a preset direction; at least one heating element is arranged between each two adjacent temperature sensors;

[0022] When the temperature sensor detects that the temperature of the material is lower than the lowest temperature in the preset temperature range, the lifting assembly drives the first hot rolling roller, the second hot rolling roller and the guide roller away from the material, and the heating element heats the material;

[0023] When the temperature sensor detects that the temperature of the material is within a preset temperature range, the lifting assembly drives the first hot rolling roller, the second hot rolling roller and the guide roller to approach and contact the material.

[0024] In an optional embodiment, the straightening device includes a second frame, a plurality of first straightening rollers and a plurality of second straightening rollers; the plurality of first straightening rollers are arranged at intervals on the second frame along a preset direction; the plurality of second straightening rollers are arranged at intervals on the second frame along a preset direction;

[0025] The plurality of first straightening rollers and the plurality of second straightening rollers are distributed on both sides of the material, and the rotation direction of the plurality of first straightening rollers is opposite to the rotation direction of the plurality of second straightening rollers.

[0026] In an optional embodiment, the mobile phone frame production line further includes a hot forging and punching integrated machine for hot forging and punching sheet materials;

[0027] The hot forging and blanking integrated machine comprises a die base, a first die, a second die, a punch and a lower die; the die base is provided with a hot forging cavity and a blanking cavity, the first die is arranged in the hot forging cavity; the first die and the second die are detachably connected;

[0028] When the first mold and the second mold are in a mold-closing state, the first mold and the second mold act together on the sheet material;

[0029] The lower die is arranged in the blanking cavity and is detachably connected to the punch; when the punch and the lower die are in a clamping state, the punch and the lower die act together on the hot forged material.

[0030] In a second aspect, the present invention provides a mobile phone frame processing technology, which is implemented using the aforementioned mobile phone frame production line, including:

[0031] The heating furnace heats the material to a preset temperature range;

[0032] The conveying device conveys the material heated by the heating furnace to the hot rolling device;

[0033] The hot rolling device hot-rolls the heated material;

[0034] The conveying device conveys the material hot-rolled by the hot-rolling device to the straightening device;

[0035] The straightening device straightens the hot-rolled material;

[0036] The conveying device conveys the material straightened by the straightening device to the cutting device;

[0037] The cutting device cuts the straightened material into a plurality of sheet materials.

[0038] In an optional embodiment, the steps after the hot rolling device hot-rolls the heated material and before the straightening device straightens the hot-rolled material include:

[0039] The first hot rolling roller performs the first hot rolling on the material;

[0040] Receiving a temperature signal output by a temperature sensor representing the real-time temperature of the material surface;

[0041] When the real-time temperature is within the preset temperature range, the conveying device conveys the material to the second hot rolling roller, and the second hot rolling roller performs a second hot rolling on the material;

[0042] When the real-time temperature is outside the preset temperature range, the conveying device stops conveying the material, the lifting assembly drives the second hot rolling roller away from the material, and the heating element heats the material.

[0043] In an optional embodiment, the step after the cutting device cuts the straightened material into a plurality of sheet materials includes:

[0044] The conveying device conveys the sheet material to the hot forging and blanking machine;

[0045] Hot forging and blanking machine can hot forge and blank sheet materials, and remove the burrs of sheet materials.

[0046] The beneficial effects of the mobile phone frame production line and the mobile phone frame processing technology provided by the embodiments of the present invention include:

[0047] The mobile phone frame production line includes a heating furnace, a hot rolling device, a straightening device, a cutting device and a conveying device; the heating furnace is used to heat the material to a preset temperature range; the hot rolling device is used to hot-roll the heated material; the straightening device is used to straighten the hot-rolled material; the cutting device is used to cut the straightened material into sheets; the conveying device is used to convey the material through the heating furnace, the hot rolling device, the straightening device and the cutting device in sequence. The mobile phone frame production line can process the material into a mobile phone frame through the heating furnace, the hot rolling device, the straightening device and the cutting device, and can reduce the loss of the material and improve the material utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0049] Figure 1 An exploded schematic diagram of a mobile phone frame production line provided in this embodiment;

[0050] Figure 2 It is a diagram of the material forming steps;

[0051] Figure 3 A schematic diagram of the structure of the hot rolling roller group and the cooling box provided in this embodiment;

[0052] Figure 4 A schematic structural diagram of the first hot rolling roller provided in this embodiment;

[0053] Figure 5 A schematic diagram of the structure of the second hot rolling roller provided in this embodiment;

[0054] Figure 6 A schematic diagram of the structure of the guide roller provided in this embodiment;

[0055] Figure 7 A schematic diagram of the structure of the lifting assembly, temperature sensor and heating element provided in this embodiment;

[0056] Figure 8 A schematic diagram of the structure of the mold base provided in this embodiment;

[0057] Fig. 9 for Figure 8 A partial enlarged view of the middle A;

[0058] Fig.10 for Figure 8 A partial enlarged view of point B in the middle;

[0059] Fig.11 A schematic structural diagram of a first mold provided in this embodiment;

[0060] Fig.12 A schematic diagram of the structure of the punch provided in this embodiment;

[0061] Fig.13 A schematic diagram of the process flow of the mobile phone frame processing technology provided in this embodiment;

[0062] Fig.14 A schematic flow chart of the hot rolling process provided in this embodiment.

[0063] Icons: 100-mobile phone frame production line; 110-heating furnace; 120-hot rolling device; 121-hot rolling roller group; 122-cooling box; 1221-opening; 1222-air inlet; 1223-negative pressure outlet; 123-first hot rolling roller; 1231-first annular protrusion; 124-second hot rolling roller; 1241-second annular protrusion; 1242-third annular protrusion; 125-guide roller; 1251-annular groove; 1252-arc surface; 126-lifting assembly; 127-temperature sensor; 128- Heating element; 129-guide element; 130-straightening device; 131-first straightening roller; 132-second straightening roller; 140-hot forging and blanking machine; 141-die base; 1411-hot forging cavity; 1412-blank cutting cavity; 1413-cavity; 142-first die; 1421-first protrusion; 1422-first side; 143-second die; 1431-second protrusion; 1432-second side; 144-punch; 145-lower die; 150-conveying device; 200-material; 210-sheet material. DETAILED DESCRIPTION

[0064] In the related art, a wire cutting method is used to process a mobile phone frame. However, the wire cutting technology will produce some material slag during the cutting process, thereby causing waste, resulting in a large loss of material 200 and a low utilization rate.

[0065] In view of the above problems, the present embodiment provides a mobile phone frame production device and processing technology, which can improve production efficiency, reduce the loss of material 200, and improve the utilization rate of material 200.

[0066] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0067] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0068] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0069] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0070] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0071] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0072] Please refer to Figure 1 , Figure 1 This is a schematic diagram of an exploded view of a mobile phone frame production line 100 provided in this embodiment. The X direction in the figure is a preset direction.

[0073] The mobile phone frame production line 100 provided in this embodiment includes a heating furnace 110, a hot rolling device 120, a straightening device 130 and a cutting device. The material 200 is first heated to a preset temperature range in the heating furnace 110, so that the material 200 is in a thermoplastic state. Subsequently, the heated material 200 is conveyed to the hot rolling device 120, and the hot rolling device 120 hot-rolls the heated material 200, thereby changing the shape of the heated material 200. In order to ensure the straightness of the hot-rolled material 200, after the shape of the material 200 is changed by hot rolling, the straightening device 130 is used to straighten the material 200. Finally, the cutting device is used to cut the material 200 into sheets, and the thickness of each sheet material 210 is the same.

[0074] It can be understood that in this embodiment, the heating furnace 110, the hot rolling device 120, the straightening device 130 and the cutting device are arranged in sequence, and the material 200 also passes through the heating furnace 110, the hot rolling device 120, the straightening device 130 and the cutting device in sequence, so as to form the required mobile phone frame.

[0075] It should be noted that the mobile phone frame production line 100 also includes a conveying device 150. After the material 200 completes the previous process, the conveying device 150 conveys the material 200 to the next process to improve production efficiency.

[0076] This embodiment utilizes a hot rolling device 120 to hot-roll the material 200 so that the shape of the material 200 is changed to obtain the desired shape of the mobile phone frame, replacing the wire cutting technology in the prior art, reducing the generation of slag, thereby reducing the loss of the material 200, thereby improving the utilization rate of the material 200, improving production efficiency and reducing costs.

[0077] It should be noted that, in this embodiment, the material 200 is made of high-strength metal, and the preset temperature range is 900° C.-1000° C. In other embodiments, the specific value of the preset temperature range can be adjusted according to actual conditions.

[0078] For further information, please refer to Figure 1 The hot rolling device 120 in this embodiment includes a first frame and a hot rolling roller group 121. The hot rolling roller group 121 is rotatably connected to the first frame and acts on the heated material 200, so that the material 200 is deformed after being squeezed.

[0079] Specifically, the hot rolling roller group 121 includes at least one first hot rolling roller 123, at least one second hot rolling roller 124 and at least one guide roller 125; the first hot rolling roller 123, the second hot rolling roller 124 and the two guide rollers 125 are all rotatably connected to the first frame; the first hot rolling roller 123 and the second hot rolling roller 124 are arranged at intervals along a preset direction; the first hot rolling roller 123 and the second hot rolling roller 124 are distributed on the same side of the material 200, and the first hot rolling roller 123 and the guide roller 125 are distributed on both sides of the material 200; the first hot rolling roller 123, the second hot rolling roller 124 and the guide roller 125 are all used to contact with the material 200.

[0080] It can be understood that, since the cross section of the mobile phone frame is similar to a step shape, the present embodiment performs two hot rolling operations on the material 200. The first hot rolling roller 123 performs the first hot rolling operation on the heated material 200, and the second hot rolling roller 124 performs the second hot rolling operation on the heated material 200.

[0081] Please refer to Figure 2 , Figure 2 2 is a diagram of the forming steps of the material 200. In this embodiment, after the first hot rolling, the shape of the material 200 changes from a to b, and during the continuous hot rolling process, the shape of the material 200 changes from b to c. After the second hot rolling, the shape of the material 200 changes from c to d.

[0082] The first hot rolling roller 123 and the second hot rolling roller 124 are located on the same side of the material 200, that is, they act on the same surface of the material 200, specifically the upper surface of the material 200, while the guide roller 125 is located on the other side of the material 200, acting on the lower surface of the material 200; thereby, the first hot rolling roller 123 and the second hot rolling roller 124 and the guide roller 125 work together to extrude the material 200, thereby ensuring that the material 200 is deformed and limiting the movement of the material 200 in the second direction.

[0083] It should be noted that the first hot rolling roller 123 and the second hot rolling roller 124 are spaced apart in the horizontal direction, and the guide roller 125 is spaced apart from the first hot rolling roller 123 and the second hot rolling roller 124 in the vertical direction. Therefore, the first hot rolling roller 123 and the second hot rolling roller 124 act on the upper surface of the material 200, and the guide roller 125 acts on the lower surface of the material 200, that is, the upper surface of the material 200 is stepped.

[0084] In this embodiment, the maximum diameter of the first hot rolling roller 123 is D1, and the maximum diameter of the second hot rolling roller 124 is D2, wherein D1=D2, thereby avoiding unnecessary deformation of the material 200. If the material 200 undergoes unnecessary deformation, the material 200 needs to be further hot-rolled, resulting in reduced production efficiency. Therefore, in order to ensure the accuracy of the manufactured mobile phone frame, in this embodiment, the maximum diameter of the first hot rolling roller 123 and the maximum diameter of the second hot rolling roller 124 are equal. In other embodiments, the maximum diameter of the first hot rolling roller 123 and the maximum diameter of the second hot rolling roller 124 can be adjusted according to the shape of the desired product.

[0085] It should be noted that, in the present embodiment, the hot rolling device 120 and the straightening device 130 are arranged in sequence along a preset direction, so the first hot rolling roller 123 and the second hot rolling roller 124 have the same rotation direction; the first hot rolling roller 123 and the guide roller 125 have opposite rotation directions; thereby, the material 200 can move along the preset direction, and further the material 200 can be smoothly transported to the straightening device 130.

[0086] Based on the above content, it can be understood that since the first hot rolling roller 123, the second hot rolling roller 124 and the guide roller 125 are all in contact with the material 200, and the temperature of the material 200 is greater than the temperature of the hot rolling roller group 121, the heat of the material 200 will be transferred to the hot rolling roller group 121.

[0087] Please refer to Figure 1-Figure 3 , Figure 3 The hot rolling device 120 in this embodiment further includes a cooling box 122 for cooling the hot rolling roll group 121 in order to avoid the problem of poor hot rolling effect caused by the overly low temperature of the hot rolling roll group 121 during hot rolling.

[0088] The cooling box 122 is provided with an opening 1221, an air inlet 1222 and a negative pressure air outlet 1223; the opening 1221 is used for allowing the hot rolling roller group 121 to pass through; the cooling box 122 covers at least a portion of the hot rolling roller group 121; the air inlet 1222 is used to communicate with an external heat dissipation pipeline to introduce a heat dissipation airflow into the cooling box 122, and the negative pressure air outlet 1223 is used to discharge the airflow after heat exchange with the hot rolling roller group 121.

[0089] In this embodiment, there are multiple cooling boxes 122, and each of the first hot rolling roller 123, the second hot rolling roller 124, and the guide roller 125 is provided with a cooling box 122. The portion of the first hot rolling roller 123 that is not in contact with the material 200, the portion of the second hot rolling roller 124 that is not in contact with the material 200, and the portion of the guide roller 125 that is not in contact with the material 200 are all located in the corresponding cooling box 122.

[0090] The air inlet 1222 and the negative pressure air outlet 1223 are both continuous with the external heat dissipation duct. The heat dissipation duct transports the heat dissipation airflow into the cooling box 122 through the air inlet 1222. After the heat dissipation airflow exchanges heat with the hot rolling roller group 121, since the pressure at the negative pressure air outlet 1223 is lower than that at other positions, the airflow after heat exchange moves toward the position of the negative pressure air outlet 1223, so that the airflow enters the external heat dissipation duct through the negative pressure air outlet 1223, thereby discharging the heat of the guide wheel to the outside.

[0091] It should be noted that, since the first hot rolling roller 123 and the second hot rolling roller 124 are located above the material 200, the negative pressure air outlet 1223 for covering the first hot rolling roller 123 and the second hot rolling roller 124 is located above the cooling box 122. The guide roller 125 is located below the material 200, so the negative pressure air outlet 1223 for covering the guide roller 125 is located below the cooling box 122.

[0092] The pressure at the negative pressure air outlet 1223 is lower than the pressure at other positions of the cooling box 122, causing the air flow to flow toward the position of the negative pressure air outlet 1223, so that the air flow can be discharged from the negative pressure air outlet 1223, thereby preventing the residual cold air from flowing in the direction of the material 200, and further avoiding the temperature drop on the surface of the material 200 caused by the contact between the cold air and the material 200, which is not conducive to hot rolling of the material 200 and avoids affecting the production efficiency.

[0093] Therefore, the cooling box 122 in this embodiment can not only cool the first hot rolling roller 123, the second hot rolling roller 124 and the guide roller 125 in the hot rolling roller group 121, but also avoid affecting the temperature of the material 200.

[0094] For further information, please refer to Figure 1-Figure 6 , Figure 4 A schematic diagram of the structure of the first hot rolling roller 123 provided in this embodiment; Figure 5 A schematic diagram of the structure of the second hot rolling roller 124 provided in this embodiment; Figure 6 This is a schematic structural diagram of the guide roller 125 provided in this embodiment.

[0095] The first hot rolling roller 123 is provided with a first annular protrusion 1231, and the edge of the first annular protrusion 1231 is equidistant from the opposite sides of the first hot rolling roller 123; the first annular protrusion 1231 contacts the material 200 and cooperates with the guide roller 125 to extrude the material 200. Specifically, the first hot rolling roller 123 is a symmetrical structure, and after the material 200 is hot-rolled for the first time, a larger groove is formed in the middle of the material 200 through hot rolling.

[0096] It can be understood that the first hot rolling roller 123 is in contact with the upper surface of the material 200, so the opening direction of the groove formed by the material 200 is opened downward along the vertical direction. In addition, since the material 200 in this embodiment is in a long strip shape in the initial state, the material 200 is in a U shape after the first hot rolling, specifically: Figure 2 Middle b.

[0097] In addition, the second hot rolling roller 124 is provided with a second annular protrusion 1241 and a third annular protrusion 1242; the second annular protrusion 1241 and the third annular protrusion 1242 are stacked in sequence; the edge of the second annular protrusion 1241 and the edge of the third annular protrusion 1242 are at an equal distance from the two opposite sides of the second hot rolling roller 124; the second annular protrusion 1241 and the third annular protrusion 1242 are in contact with the material 200, and cooperate with the guide roller 125 to extrude the material 200; wherein the diameter and width of the first annular protrusion 1231 are equal to the diameter and width of the second annular protrusion 1241; the width of the second annular protrusion 1241 is greater than the width of the third annular protrusion 1242; so that the shape of the material 200 is transformed into Figure 2 In d.

[0098] Specifically, the second hot rolling roller 124 is also a symmetrical structure, and after the material 200 is hot-rolled for the second time, a smaller groove is formed again in the middle of the larger groove. It should be noted that the diameter and width of the first annular protrusion 1231 are equal to the diameter and width of the second annular protrusion 1241, so as to avoid unnecessary deformation of the material 200, improve the qualified rate of the product, and deepen the depth of the larger groove.

[0099] In this embodiment, please refer to Figure 1-Figure 5 The guide roller 125 is provided with an annular groove 1251, which is used to accommodate the material 200, so that the material 200 can be guided to move in a preset direction by the guide roller 125, and the material 200 can be prevented from being separated. The inner walls of the annular groove 1251 that contact the two opposite side surfaces of the material 200 are flat surfaces, so as to ensure the straightness of the material 200 and prevent the material 200 from bending.

[0100] It should also be noted that the guide roller 125 is provided with an arc surface 1252, and the arc surface 1252 contacts the two angles below the material 200, so that during the hot rolling process, the intersection between the lower surface and the side surface of the material 200 is arc-shaped to form the arc corner required for the mobile phone frame, and its shape is Figure 2 c in.

[0101] According to the above content, it can be understood that since the length of the material 200 in this embodiment is relatively long, it is necessary to set up multiple first hot rolling rollers 123, multiple second hot rolling rollers 124 and multiple guide rollers 125 to continuously hot roll it so as to gradually deepen the degree of deformation of the material 200.

[0102] It should be noted that the first hot rolling in this embodiment refers to the process in which multiple first hot rolling rollers 123 act on the material 200 for continuous hot rolling, and the second hot rolling refers to the process in which multiple second hot rolling rollers 124 act on the material 200 for continuous hot rolling; rather than referring to the number of hot rolling times that the material 200 undergoes.

[0103] During the first hot rolling process, the plurality of first hot rolling rollers 123 perform multiple hot rolling on the material 200 to gradually increase the deformation of the material 200. After the first hot rolling, the shape of the material 200 is finally Figure 2 In c, Figure 2 b in the figure is the transition shape of the material 200 during the first hot rolling process.

[0104] Similarly, during the second hot rolling process, the plurality of second hot rolling rollers 124 will perform multiple hot rolling on the material 200 to gradually increase the degree of deformation of the material 200. After the second hot rolling, the shape of the material 200 is finally Figure 2 In d.

[0105] The plurality of first hot rolling rollers 123 , the plurality of second hot rolling rollers 124 and the plurality of guide rollers 125 are arranged parallel and spaced apart along a preset direction. In addition, each of the first hot rolling rollers 123 , each of the second hot rolling rollers 124 and each of the guide rollers 125 is equipped with a cooling box 122 .

[0106] However, since the material 200 will be in continuous contact with the multiple first hot rolling rollers 123, the multiple second hot rolling rollers 124 and the multiple guide rollers 125, and during the contact process, the heat on the surface of the material 200 will be transferred to the first hot rolling rollers 123, the second hot rolling rollers 124 and the guide rollers 125, causing the temperature of the material 200 itself to drop, resulting in a poor hot rolling effect due to the excessively low temperature.

[0107] Please refer to Figure 1-Figure 7 , Figure 7A schematic diagram of the structure of the lifting assembly 126, the temperature sensor 127 and the heating element 128 provided in this embodiment. In this embodiment, the hot rolling device 120 includes a lifting assembly 126 and a plurality of temperature sensors 127; the lifting assembly 126 is connected to the first frame, and is connected to the first hot rolling roller 123, the second hot rolling roller 124 and the guide roller 125; the lifting assembly 126 is used to drive the first hot rolling roller 123, the second hot rolling roller 124 and the guide roller 125 to make the first hot rolling roller 123, the second hot rolling roller 124 and the guide roller 125 close to or away from the material 200; a plurality of temperature sensors 127 are connected to the first frame at intervals along a preset direction; a plurality of temperature sensors 127; at least one heating element 128 is arranged between each two adjacent temperature sensors 127.

[0108] When the temperature sensor 127 detects that the temperature of the material 200 is within a preset range, that is, the detected temperature value is within the range of 900° C.-1000° C., the material 200 is directly hot-rolled for the second time.

[0109] When the temperature sensor 127 detects that the temperature of the material 200 is lower than 900° C., the lifting assembly 126 drives the first hot rolling roller 123, the second hot rolling roller 124 and the guide roller 125 away from the material 200, thereby stopping the hot rolling and conveying of the material 200. Subsequently, the heating element 128 is used to heat the material 200.

[0110] Since the material 200 is a long strip structure, a plurality of heating elements 128 need to be provided to continuously heat the material 200 , thereby ensuring that the temperature of the material 200 can be raised to within a preset temperature range.

[0111] It should be noted that during the heating process, since the front part of the hot rolling roller group 121 is still in operation, the material 200 will continue to move along the preset direction. Therefore, multiple temperature sensors 127 are required to be arranged at intervals. During the movement of the material 200, the real-time temperature of the material 200 is detected, that is, the temperature of the material 200 is rechecked multiple times.

[0112] During the re-inspection process, after the temperature of the material 200 rises back to 900°C-1000°C, the lifting assembly 126 drives the first hot rolling roller 123, the second hot rolling roller 124 and the guide roller 125 to approach the material 200 and contact the material 200, thereby continuing to hot roll the material 200.

[0113] It should be noted that the lifting assembly 126 includes a plurality of lifting rods, and each first hot rolling roller 123, each second hot rolling roller 124 and each guide roller 125 are connected to a lifting rod.

[0114] In this embodiment, the temperature sensor 127 is used to detect the real-time temperature of the material 200 when it finishes the first hot rolling and enters the second hot rolling, as well as the real-time temperature during the second hot rolling; and when the temperature is too low, the material 200 is heated up.

[0115] In other embodiments, since the first hot rolling takes too long, the temperature of the material 200 may be lower than the lowest temperature of the preset temperature range during the first hot rolling. Therefore, the temperature sensor 127 may also be used to detect the real-time temperature of the material 200 during the first hot rolling and to supplement the temperature of the material 200.

[0116] According to the above arrangement, the hot rolling device 120 in this embodiment further includes a guide member 129, which is connected to the frame. There are multiple guide members 129, with a guide member 129 disposed between every two first hot rolling rollers 123, and a guide member 129 disposed between every two second hot rolling rollers 124. Thus, the guide member 129 is used to guide the material 200 to move in a preset direction during the hot rolling process, thereby preventing the material 200 from detaching and affecting production efficiency.

[0117] For further information, please refer to Figure 1 The straightening device 130 includes a second frame, a plurality of first straightening rollers 131 and a plurality of second straightening rollers 132; the plurality of first straightening rollers 131 are arranged on the second frame at intervals along a preset direction; the plurality of second straightening rollers 132 are arranged on the second frame at intervals along a preset direction; the plurality of first straightening rollers 131 and the plurality of second straightening rollers 132 are distributed on both sides of the material 200, and the rotation direction of the plurality of first straightening rollers 131 is opposite to the rotation direction of the plurality of second straightening rollers 132.

[0118] The first straightening roller 131 and the second straightening roller 132 are located on opposite sides of the material 200 , so as to act on the material 200 together and cooperate with each other to straighten the material 200 .

[0119] It can be understood that since the object straightened by the straightening device 130 is the hot-rolled material 200, that is, the straightening step is located after the hot rolling step, the shape of the first straightening roller 131 is similar to the shape of the second hot rolling roller 124, and the shape of the second straightening roller 132 is similar to the shape of the guide roller 125, so as to maintain the shape of the hot-rolled material 200 and perform straightening.

[0120] For further information, please refer to Figure 1-Figure 12 , Figure 8 A schematic diagram of the structure of the mold base 141 provided in this embodiment; Fig. 9 for Figure 8 A partial enlarged view of the middle A; Fig.10 for Figure 8 A partial enlarged view of point B in the middle; Fig.11 A schematic diagram of the structure of the first mold 142 provided in this embodiment; Fig.12 A schematic structural diagram of the punch 144 provided in this embodiment.

[0121] The mobile phone frame production line 100 further includes a hot forging and punching integrated machine 140 for hot forging and punching the sheet material 210. Specifically, after the material 200 is cut into sheet materials 210 of uniform thickness, the sheet material 210 needs to be hot forged and punched.

[0122] In this embodiment, please refer to Figure 2 After cutting the material 200, a plurality of sheet materials 210 are obtained. Figure 2 The sheet material 210 in the hot forging is shaped as follows: Figure 2 f in the figure, the shape of the sheet material 210 after punching is Figure 2 The h in.

[0123] The hot forging and blanking machine 140 includes a die base 141, a first die 142, a second die 143, a punch 144 and a lower die 145; the die base 141 is provided with a hot forging cavity 1411 and a blanking cavity 1412, and the first die 142 is arranged in the hot forging cavity 1411; the first die 142 and the second die 143 are detachably connected; the lower die 145 is arranged in the blanking cavity 1412 and is detachably connected to the punch 144.

[0124] When the first mold 142 and the second mold 143 are in a mold-clamping state, the first mold 142 and the second mold 143 act together on the sheet material 210 ; that is, the first mold 142 and the second mold 143 interact with each other to squeeze the sheet material 210 , so that the sheet material 210 is deformed.

[0125] According to the above configuration, the first mold 142 is provided with a first protrusion 1421, which is arranged on the first side surface 1422 of the first mold 142; the second mold 143 is provided with a second protrusion 1431, which is arranged on the second side surface 1432 of the second mold 143; when the first mold 142 and the second mold 143 are in a mold closing state, the first protrusion 1421 and the second protrusion 1431 are respectively used to extrude the material 200 on opposite sides.

[0126] It can be understood that the shapes of the first protrusion 1421 and the second protrusion 1431 are similar to the shape of the material 200 after the second hot rolling. The first protrusion 1421 and the second protrusion 1431 are used to squeeze the opposite sides of the small material 200, so that the edge of the small material 200 protrudes relative to the middle.

[0127] It should be noted that the thickness of the sheet material 210 after being cut by the cutting device is 10 mm, while the thickness of the edge of the sheet material 210 after hot forging is 10 mm and the thickness in the middle is 7 mm.

[0128] After hot forging is completed to obtain a sheet material 210 that is thin in the middle and thick at the edges, since extrusion only changes the shape of the sheet material 210 but does not change its volume, there will be some irregular burrs; therefore, the irregular burrs need to be cut off by punching.

[0129] In order to cut off irregular burrs, the punch 144 and the lower die 145 place the hot forged sheet material 210 on the lower die 145, and the punch 144 moves toward the position of the sheet material 210. When the punch 144 and the lower die 145 are in a closed mold state, the burrs on the sheet material 210 are cut off by the punch 144, thereby obtaining the desired mobile phone frame structure.

[0130] It can be understood that when the punch 144 and the lower die 145 are in the clamped state, the punch 144 and the lower die 145 act together on the hot forged sheet material 210, that is, when the punch 144 and the lower die 145 are in the clamped state, the burrs of the sheet material 210 are removed.

[0131] According to the above arrangement, the lower film is connected to at least part of the inner wall of the punching cavity 1412 and is spaced from another part of the inner wall to form a cavity 1413; when the punch 144 and the lower die 145 are in a mold closing state, the material 200 can slidably cooperate with the cavity 1413.

[0132] In this embodiment, the lower film only occupies part of the space of the punching cavity 1412, thereby forming a cavity 1413, and the cross-sectional shape of the cavity 1413 is the same as the interface shape of the desired mobile phone frame. Therefore, after the burrs of the sheet material 210 are cut off by the punch 144, the punched material 200, that is, the mobile phone frame, can be slidably matched with the cavity 1413, so that the material 200 can slide out of the die base 141 for easy removal.

[0133] Please refer to Fig.13 , Fig.13 This is a schematic diagram of the process flow of the mobile phone frame processing technology provided by this embodiment. This embodiment also provides a mobile phone frame processing technology, and the mobile phone frame processing technology is implemented by the mobile phone frame production line 100 mentioned above.

[0134] The steps of the mobile phone frame processing technology include:

[0135] S1: The heating furnace 110 heats the material 200 to a preset temperature range;

[0136] S2: The conveying device 150 conveys the material 200 heated by the heating furnace 110 to the hot rolling device 120, and the hot rolling device 120 hot rolls the heated material 200;

[0137] S3: The conveying device 150 conveys the material 200 hot-rolled by the hot-rolling device 120 to the straightening device 130, and the straightening device 130 straightens the hot-rolled material 200;

[0138] S4: the conveying device 150 conveys the material 200 straightened by the straightening device 130 to the cutting device, and the cutting device cuts the straightened material 200 into a plurality of sheet materials 210;

[0139] S5: The conveying device 150 conveys the sheet material 210 to the hot forging and blanking integrated machine 140; the hot forging and blanking integrated machine 140 hot forges the sheet material 210;

[0140] S6: The hot forging and punching integrated machine 140 punches the sheet material 210 to remove burrs.

[0141] Please refer to Fig.14 , 14 is a schematic diagram of the hot rolling process provided in this embodiment. According to the above content, the hot rolling process in this embodiment includes the first hot rolling and the second hot rolling.

[0142] Therefore, the steps after the hot rolling device 120 hot rolls the heated material 200 and before the straightening device 130 straightens the hot rolled material 200 include:

[0143] S21: The first hot rolling roller 123 performs the first hot rolling on the material 200;

[0144] S22: receiving a temperature signal output by the temperature sensor 127 indicating the real-time temperature of the surface of the material 200;

[0145] S23: Determine whether the implementation temperature is at a preset temperature;

[0146] S24: When the real-time temperature is within the preset temperature range, the conveying device 150 conveys the material 200 to the second hot rolling roller 124, and the second hot rolling roller 124 performs a second hot rolling on the material 200;

[0147] S25: When the real-time temperature is outside the preset temperature range, the conveying device 150 stops conveying the material 200, the lifting assembly 126 drives the second hot rolling roller 124 away from the material 200, and the heating element 128 heats the material 200; then S22 is repeated.

[0148] It should be noted that, in this embodiment, the material 200 is made of the high-strength metal material, so the preset temperature range is 900° C.-1000° C. In other embodiments, the specific value of the preset temperature range can be adjusted according to actual conditions.

[0149] In this embodiment, the required mobile phone frame has a middle thickness of 7 mm and an edge thickness of 10 mm. In other embodiments, the shape of the mobile phone frame can be adjusted according to the actual required shape.

[0150] Therefore, the mobile phone frame processing technology of this embodiment is:

[0151] S1: The heating furnace 110 heats the material at 200 to 900° C.-1000° C.;

[0152] S2: The conveying device 150 conveys the material 200 heated by the heating furnace 110 to the hot rolling device 120, and the hot rolling device 120 hot rolls the heated material 200;

[0153] S21: The first hot rolling roller 123 performs the first hot rolling on the material 200;

[0154] S22: receiving a temperature signal output by the temperature sensor 127 indicating the real-time temperature of the surface of the material 200;

[0155] S23: Determine whether the implementation temperature is between 900° C. and 1000° C.;

[0156] S24: when the real-time temperature is between 900° C. and 1000° C., the conveying device 150 conveys the material 200 to the second hot rolling roller 124, and the second hot rolling roller 124 performs a second hot rolling on the material 200;

[0157] S25: When the real-time temperature is lower than 900° C., the conveying device 150 stops conveying the material 200, the lifting assembly 126 drives the second hot rolling roller 124 away from the material 200, and the heating element 128 heats the material 200; then S22 is repeated;

[0158] S3: The conveying device 150 conveys the material 200 hot-rolled by the hot-rolling device 120 to the straightening device 130, and the straightening device 130 straightens the hot-rolled material 200;

[0159] S4: the conveying device 150 conveys the material 200 straightened by the straightening device 130 to the cutting device, and the cutting device cuts the straightened material 200 into a plurality of sheet materials 210 with a thickness of 10 mm;

[0160] S5: The conveying device 150 conveys the sheet material 210 to the hot forging and punching integrated machine 140; the hot forging and punching integrated machine 140 hot forges the sheet material 210, so that the edge thickness of the sheet material 210 is 10 mm, and the thickness of the middle part is 7 mm;

[0161] S6: The hot forging and punching integrated machine 140 punches the sheet material 210 to remove burrs.

[0162] After passing through S21, the shape of the material 200 is changed from Figure 2 a is transformed into b and c; after passing through S24, the shape of the material 200 is changed from Figure 2 c changes to d; after S4, the shape of the material 200 changes from Figure 2 Where d is e; after passing through S5, the shape of the material 200 changes from Figure 2 e is transformed into f; after passing through S6, the shape of the material 200 changes from Figure 2 The f in the middle is transformed into h.

[0163] In summary, this embodiment provides a mobile phone frame production line 100 and a processing technology. This embodiment includes a heating furnace 110, a hot rolling device 120, a straightening device 130, a cutting device and a hot forging and punching integrated machine 140, and the material 200 is heated, hot rolled, straightened, cut, hot forged and punched in sequence through the above devices, so that the shape of the material 200 is changed to form the desired mobile phone frame; thereby improving the utilization rate of the material 200, reducing the loss of the material 200 and reducing the cost, thereby improving the production efficiency.

[0164] Furthermore, the present embodiment can also utilize hot rolling and hot forging of the material 200 so that the middle portion of the formed mobile phone frame can form a functional area, thereby improving the convenience of the mobile phone production process.

[0165] This embodiment also provides a cooling box 122 and a heating element 128 to ensure that during the heating process, the temperature of the material 200 can be maintained within a preset temperature range and the hot rolling roller group 121 can be cooled, thereby improving production efficiency.

[0166] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A mobile phone frame production line, characterized in that: include: A heating furnace (110), wherein the heating furnace (110) is used to heat the material (200) to a preset temperature range; A hot rolling device (120), the hot rolling device (120) being used for hot rolling the heated material (200); A straightening device (130), the straightening device (130) being used for straightening the material (200) after hot rolling; A cutting device, the cutting device is used to cut the straightened material (200) into sheets; and A conveying device (150), wherein the conveying device (150) is used to convey the material (200) to sequentially pass through the heating furnace (110), the hot rolling device (120), the straightening device (130), and the cutting device.

2. The mobile phone frame production line according to claim 1, characterized in that: The hot rolling device (120) comprises a hot rolling roller group (121), a first frame and at least one cooling box (122); the hot rolling roller group (121) is rotatably connected to the first frame; The cooling box (122) is provided with an opening (1221), an air inlet (1222) and a negative pressure air outlet (1223); the cooling box (122) is arranged to cover at least a portion of the hot rolling roller group (121); the opening (1221) is used for allowing the hot rolling roller group (121) to pass through; the air inlet (1222) is used to communicate with an external heat dissipation pipeline to introduce heat dissipation airflow into the cooling box (122), and the negative pressure air outlet (1223) is used to discharge the airflow after heat exchange with the hot rolling roller group (121).

3. The mobile phone frame production line according to claim 2, characterized in that: The hot rolling roller group (121) comprises at least one first hot rolling roller (123), at least one second hot rolling roller (124) and at least one guide roller (125); The first hot rolling roller (123), the second hot rolling roller (124) and the two guide rollers (125) are all rotatably connected to the first frame; the first hot rolling roller (123) and the second hot rolling roller (124) are arranged at intervals along a preset direction; the first hot rolling roller (123) and the second hot rolling roller (124) are distributed on the same side of the material (200), and the first hot rolling roller (123) and the guide rollers (125) are distributed on both sides of the material (200); the first hot rolling roller (123), the second hot rolling roller (124) and the guide rollers (125) are all used to contact the material (200); Wherein, the maximum diameter of the first hot rolling roller (123) is equal to the maximum diameter of the second hot rolling roller (124); the first hot rolling roller (123) and the second hot rolling roller (124) have the same rotation direction; and the first hot rolling roller (123) and the guide roller (125) have opposite rotation directions.

4. The mobile phone frame production line according to claim 3, characterized in that: The number of the cooling box (122), the first hot rolling roller (123), the second hot rolling roller (124) and the guide roller (125) is multiple; the multiple first hot rolling rollers (123) and the multiple second hot rolling rollers (124) are arranged at intervals along the preset direction; Each of the first hot rolling rollers (123), each of the second hot rolling rollers (124), and each of the guide rollers (125) is equipped with a cooling box (122).

5. The mobile phone frame production line according to claim 3, characterized in that: The hot rolling device (120) comprises a lifting assembly (126) and a plurality of temperature sensors (127); The lifting component (126) is connected to the first frame, and is connected to the first hot rolling roller (123), the second hot rolling roller (124), and the guide roller (125); the lifting component (126) is used to drive the first hot rolling roller (123), the second hot rolling roller (124), and the guide roller (125) to approach or move away from the material (200); The plurality of temperature sensors (127) are connected to the first frame at intervals along the preset direction; at least one heating element (128) is arranged between each two adjacent temperature sensors (127); When the temperature sensor (127) detects that the temperature of the material (200) is lower than the lowest temperature of the preset temperature range, the lifting component (126) drives the first hot rolling roller (123), the second hot rolling roller (124) and the guide roller (125) away from the material (200), and the heating element (128) heats the material (200); When the temperature sensor (127) detects that the temperature of the material (200) is within the preset temperature range, the lifting assembly (126) drives the first hot rolling roller (123), the second hot rolling roller (124) and the guide roller (125) to approach and contact the material (200).

6. The mobile phone frame production line according to any one of claims 1-5, characterized in that: The straightening device (130) comprises a second frame, a plurality of first straightening rollers (131) and a plurality of second straightening rollers (132); the plurality of first straightening rollers (131) are arranged on the second frame at intervals along a preset direction; The plurality of second straightening rollers (132) are arranged on the second frame at intervals along the preset direction; The plurality of first straightening rollers (131) and the plurality of second straightening rollers (132) are distributed on both sides of the material (200), and the rotation direction of the plurality of first straightening rollers (131) is opposite to the rotation direction of the plurality of second straightening rollers (132).

7. The mobile phone frame production line according to any one of claims 1-5, characterized in that: The mobile phone frame production line (100) further comprises a hot forging and punching integrated machine (140) for hot forging and punching the sheet material (210); The hot forging and blanking machine (140) comprises a die base (141), a first die (142), a second die (143), a punch (144) and a lower die (145); the die base (141) is provided with a hot forging cavity (1411) and a blanking cavity (1412); the first die (142) is arranged in the hot forging cavity (1411); the first die (142) and the second die (143) are detachably connected; When the first mold (142) and the second mold (143) are in a mold-clamping state, the first mold (142) and the second mold (143) act together on the sheet material (210); The lower die (145) is arranged in the punching cavity (1412) and is detachably connected to the punch (144); when the punch (144) and the lower die (145) are in a clamping state, the punch (144) and the lower die (145) act together on the material (200) after hot forging.

8. A mobile phone frame processing technology, implemented by using the mobile phone frame production line according to any one of claims 1 to 7, characterized in that: include: The heating furnace (110) heats the material (200) to a preset temperature range; The conveying device (150) conveys the material (200) heated by the heating furnace (110) to the hot rolling device (120); The hot rolling device (120) hot rolls the heated material (200); The conveying device (150) conveys the material (200) hot-rolled by the hot-rolling device (120) to the straightening device (130); The straightening device (130) straightens the material (200) after hot rolling; The conveying device (150) conveys the material (200) straightened by the straightening device (130) to the cutting device; The cutting device cuts the straightened material (200) into a plurality of sheet materials (210).

9. The mobile phone frame processing technology according to claim 8, characterized in that: After the hot rolling device (120) hot rolls the heated material (200), and before the straightening device (130) straightens the hot rolled material (200), the steps include: The first hot rolling roller (123) performs a first hot rolling on the material (200); Receiving a temperature signal output by a temperature sensor (127) indicating the real-time temperature of the surface of the material (200); When the real-time temperature is within a preset temperature range, the conveying device (150) conveys the material (200) to the second hot rolling roller (124), and the second hot rolling roller (124) performs a second hot rolling on the material (200); When the real-time temperature is outside the preset temperature range, the conveying device (150) stops conveying the material (200), the lifting component (126) drives the second hot rolling roller (124) away from the material (200), and the heating element (128) heats the material (200).

10. The mobile phone frame processing technology according to claim 8 or 9, characterized in that: The steps after the cutting device cuts the straightened material (200) into a plurality of sheet materials (210) include: The conveying device (150) conveys the sheet material (210) to the hot forging and blanking integrated machine (140); The hot forging and punching integrated machine (140) hot forges and punches the sheet material (210), and removes burrs from the sheet material (210).

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