Split welding flat metal shell shaping mold

Abstract

The present invention discloses a flat metal-like shell shaping mold, which relates to the technical field of split-welded flat metal-like shell production, and solves the problem that the material is easily adhered to the mold during the demoulding process. The split-welded flat metal-like shell shaping mold includes a support frame, a mold is fixed to the inner end of the electric telescopic rod, a material injection port is provided at the top of the mold, a cooling channel is provided in the side wall of the mold, demoulding mechanisms are symmetrically fixed on the two inner walls of the support frame, and an auxiliary demoulding mechanism is fixed on the outer side of the mold; in the present invention, before demoulding, the air pump intermittently inhales air, and when the air pump inhales air, the piston, movable rod and knocking block move as a whole. When the air pump stops inhaling air, the piston, movable rod and knocking block are bounced open as a whole, and the knocking block repeatedly knocks the mold, which facilitates the separation of the auxiliary metal shell finished product from the mold and avoids the phenomenon of adhesion during the demoulding process.

Description

Technical Field

[0001] The invention relates to the technical field of flat metal-like shell production, in particular to a split-welded flat metal-like shell shaping die. Background Art

[0002] The shell structure of the flat shell is divided into a single body type or a split brazing type. The single body type is formed by stretching with a stretching die, and the split type is formed by processing the frame and the bottom plate separately and then brazing. The lead wire is led out by the side wall, which is suitable for surface mounting technology. It is commonly used in single-chip circuit and hybrid integrated circuit packaging. In the process of manufacturing split welded flat metal shells, a shaping mold is required.

[0003] After extensive searching, it was found that the typical metal shell shaping mold in the prior art is authorized by CN103231002B, a forging mold and a forming method for a metal shell of an electronic device. The mold can be used to forge a metal sheet into a blank of a metal shell with less subsequent machining, and then the shell blank can be formed into a metal shell after less machining. The problem of long machining time for the metal shell of an electronic device in the prior art, the inability to form a shell blank with less subsequent machining, high production cost, and low material utilization is solved.

[0004] After a massive search, it is found that the typical metal shell shaping mold in the prior art is authorized by CN113400565B, a method for making a metal shell and a metal shell. The method includes: stamping a first area and a second area of ​​a metal sheet to form two first protrusions; extruding and milling the first protrusion to form a second protrusion; stamping the circumference of the metal sheet except the first area and the second area to form a first folded edge on the circumference; extruding and milling the first folded edge to form a second folded edge; nano-injection molding the circumference of the inner side of the metal sheet to form a plastic part between the metal sheet and the mold; and fine-treating the metal sheet to form the metal shell. The metal shell made by the above-mentioned manufacturing method is integrally formed from a whole piece of metal sheet, and the outer side of the metal shell is beautiful and atmospheric, saving CNC process, simple process flow, low cost, which is conducive to market popularization and improving customer satisfaction.

[0005] After a massive search, it is found that the typical metal shell shaping mold in the prior art is as follows: Publication No. CN114749643A, a metal molten metal pouring device, including a base, and also including: a cooling water tank shell, the cooling water tank shell is fixedly installed on the upper surface of the base, a pouring mold is arranged inside the cooling water tank shell, a connecting support is fixedly installed at the rear end of the pouring mold, and an adjustment component is arranged at the rear end of the cooling water tank shell. The adjustment component includes an adjustment support, the adjustment support is fixedly installed on the upper surface of the base, and the end face of the adjustment support is provided with a built-in cavity, the connecting support matches the built-in cavity, and smooth through holes are provided at both ends of the upper surface of the connecting support, and a threaded through hole is provided at the center of the upper surface of the connecting support. During use, the present invention cools the pouring mold through the cooling water tank shell, and at the same time, the adjusting component is used to move the pouring mold into the cooling water tank shell, thereby avoiding the safety hazard of workers accidentally touching and scalding, and also reducing the operation process.

[0006] In summary, the existing metal shell shaping mold generally uses cooling equipment to cool the raw materials when using the casting molding method, so as to avoid the safety hazard of workers accidentally touching and scalding, and also reduce the operation process. However, during the demolding process, the material is easy to stick to the mold, and the material is difficult to be completely and completely peeled off from the mold, which will affect the quality of the finished product. In view of the above problems, the existing equipment needs to be improved. Summary of the invention

[0007] The purpose of the present invention is to provide a split welded flat metal shell shaping mold to solve the problem that during the demolding process of the existing metal shell shaping mold proposed in the above background technology, the material is easily adhered to the mold and the material is difficult to be completely and completely peeled off from the mold, which affects the quality of the finished product.

[0008] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0009] The split welded flat metal-like shell shaping mold provided by the present invention comprises a support frame, a mounting frame is fixed on the top of the support frame, electric telescopic rods are symmetrically fixed on the two inner walls of the support frame, a mold is fixed on the inner end of the electric telescopic rod, a material injection port is opened on the top of the mold, a cooling channel is opened in the side wall of the mold, demoulding mechanisms are symmetrically fixed on the two inner walls of the support frame, and an auxiliary demoulding mechanism is fixed on the outer side of the mold;

[0010] Wherein, the demoulding mechanism includes:

[0011] A support sleeve, a first compression spring is fixed on the inner wall of the support sleeve, and a square rod is fixed on the inner end of the first compression spring;

[0012] A round rod is fixed to the inner end of the square rod, and the round rod passes through the mold and is connected to the top block.

[0013] As a preferred solution of the present invention, two molds are provided, and each mold is provided with three cooling channels, and the three cooling channels are connected by a connecting pipe, and a connecting pipe is fixed on the connecting pipe.

[0014] Through the above technical solution, the coolant can circulate in the cooling channel, which is convenient for cooling the metal shell raw material, so that the metal shell raw material can be quickly formed.

[0015] As a preferred solution of the present invention, a second compression spring is fixed to the outside of the mold, and a round rod is fixed to the outer end of the second compression spring, and the second compression spring is wrapped around the outside of the round rod.

[0016] Through the above technical solution, the second compression spring can assist the round rod in resetting.

[0017] As a preferred solution of the present invention, a first groove is provided in the support sleeve, and a third compression spring is fixed in the first groove, a locking block is fixed to the inner end of the third compression spring, a slot is provided on the square rod, and the locking block is snap-connected in the slot.

[0018] Through the above technical solution, the locking block is initially stuck in the slot, which is convenient for locking the square rod. After the locking block leaves the slot, the square rod is in a movable state.

[0019] As a preferred solution of the present invention, a support frame is fixed to the outer side of the support sleeve, and a connecting rope and a limiting sleeve are fixed on the inner wall of the support frame, and the connecting rope passes through the limiting sleeve and is connected to the locking block.

[0020] Through the above technical solution, the connecting rope has a pulling effect on the locking block. When the connecting rope is squeezed, the locking block will move under the pulling effect of the connecting rope.

[0021] As a preferred solution of the present invention, a support rod is fixed to the outer side of the mold, and an extrusion wheel is fixed to the outer end of the support rod.

[0022] Through the above technical solution, when the squeezing wheel moves and squeezes the connecting rope, the locking block will be pulled by the connecting rope and move.

[0023] As a preferred embodiment of the present invention, the auxiliary demoulding mechanism comprises:

[0024] A fixing frame, wherein the fixing frame is fixed to the outside of the mold and the fixing frame is evenly distributed on the mold in a circumferential direction;

[0025] The airtight pipe is fixed to the outside of all the fixing frames on the same mold, and an air suction pump is fixed on the airtight pipe.

[0026] Through the above technical solution, the suction pump can be used to suck air, and the airtight pipeline sucks air.

[0027] As a preferred solution of the present invention, an airtight passage is provided in the fixing frame, and the airtight passage is connected to the airtight pipe via a branch pipe.

[0028] Through the above technical solution, the branch pipe plays a role in connecting the airtight channel and the airtight pipe.

[0029] As a preferred solution of the present invention, a piston is slidably connected in the airtight passage, a movable rod is fixed on the inner side of the piston, and a knocking block is fixed on the inner end of the movable rod.

[0030] Through the above technical solution, when the suction pump intermittently sucks air, the knocking block repeatedly knocks the template, which is convenient for assisting in separating the metal shell product and the mold.

[0031] As a preferred solution of the present invention, a second groove is formed on the fixing frame, and a fourth compression spring is fixed in the second groove, a movable rod is fixed to the inner end of the fourth compression spring, and the fourth compression spring is wrapped around the outer side of the movable rod.

[0032] Through the above technical solution, when the air pump inhales air, the piston, the movable rod and the knocking block move as a whole, and when the air pump stops inhaling air, the piston, the movable rod and the knocking block pop open as a whole.

[0033] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0034] 1. The split welded flat metal shell shaping mold can achieve the purpose of cooling and molding through the coordinated use of the set mold and the connecting pipe. Before using the device, the connecting pipe needs to be connected with the external cooling pipe. After the injection operation is completed, the coolant circulates in the cooling pipe to cool the metal shell raw material, which is convenient for accelerating the molding speed of the metal shell raw material.

[0035] 2. The split welded flat metal shell shaping mold can achieve the purpose of auxiliary demoulding through the coordinated use of the mold, air suction pump, piston, movable rod and knocking block. Before demoulding, the air suction pump intermittently sucks air. When the air suction pump sucks air, the piston, movable rod and knocking block move as a whole. When the air suction pump stops sucking air, the piston, movable rod and knocking block are bounced as a whole. The knocking block repeatedly knocks the mold, which is convenient for the auxiliary metal shell finished product to be separated from the mold and avoids the phenomenon of adhesion during the demoulding process.

[0036] 3. The split welded flat metal shell shaping mold can achieve the purpose of automatic demoulding and unloading through the coordinated use of the set mold, square rod, round rod, top block, locking block, connecting rope and extrusion wheel. After completing the injection molding and knocking operations, the two molds move away from each other, the top block does not move and clamps the finished metal shell for demoulding operation, and the extrusion wheel finally squeezes the connecting rope, the locking block moves and releases the lock on the other rod, and then the square rod, round rod and top block move as a whole, and the top block releases the finished metal shell to facilitate automatic unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0038] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0040] Figure 2 It is a front cross-sectional structural schematic diagram of the present invention;

[0041] Figure 3 It is a schematic diagram of the demoulding mechanism structure of the present invention;

[0042] Figure 4 The present invention Figure 3 The enlarged structural diagram at A in the middle;

[0043] Figure 5 It is a schematic diagram of the connection structure of the mold, the injection port, the communicating pipe, the connecting pipe, the fixing frame, the airtight pipe and the suction pump of the present invention;

[0044] Figure 6 It is a schematic structural diagram of the auxiliary demoulding mechanism of the present invention;

[0045] Figure 7 It is a schematic diagram of the connection structure of the piston, the movable rod, the fourth compression spring and the knocking block of the present invention.

[0046] In the figure: 1, support frame; 2, mounting frame; 3, electric telescopic rod; 4, mold; 5, injection port; 6, cooling channel; 7, connecting pipe; 8, connecting pipe; 9, demoulding mechanism; 901, support sleeve; 902, first compression spring; 903, square rod; 904, round rod; 905, second compression spring; 906, top block; 907, first groove; 908, third compression spring; 909, locking block; 910, card Groove; 911, connecting rope; 912, limiting sleeve; 913, supporting frame; 10, supporting rod; 11, extrusion wheel; 12, auxiliary demoulding mechanism; 1201, fixing frame; 1202, airtight pipe; 1203, suction pump; 1204, branch pipe; 1205, airtight channel; 1206, piston; 1207, movable rod; 1208, fourth compression spring; 1209, second groove; 1210, knocking block. DETAILED DESCRIPTION

[0047] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0048] See also Figure 1-Figure 7 , a split welded flat metal shell shaping mold, comprising a support frame 1, a mounting frame 2 is fixed on the top of the support frame 1, electric telescopic rods 3 are symmetrically fixed on the two inner walls of the support frame 1, a mold 4 is fixed on the inner end of the electric telescopic rod 3, a material injection port 5 is opened on the top of the mold 4, a cooling channel 6 is opened in the side wall of the mold 4, demoulding mechanisms 9 are symmetrically fixed on the two inner walls of the support frame 1, and an auxiliary demoulding mechanism 12 is fixed on the outer side of the mold 4;

[0049] Among them, the demoulding mechanism 9 includes:

[0050] Support sleeve 901, a first compression spring 902 is fixed on the inner wall of the support sleeve 901, a square rod 903 and a round rod 904 are fixed to the inner end of the first compression spring 902, the round rod 904 is fixed to the inner end of the square rod 903, the round rod 904 passes through the mold 4 and is connected to the top block 906.

[0051] The above working principle is: first, use the mounting frame 2 and external bolts to install the support frame 1 at the desired location, then connect the connecting pipe 8 with the external cooling pipe, insert the injection pipe into the injection port 5 and inject material between the two molds 4. After the injection is completed, the coolant circulates in the cooling channel 6 to cool the metal shell raw material, thereby accelerating the molding speed. After the cooling and molding operation is completed, the suction pump 1203 intermittently inhales air, and the piston 1206 repeatedly knocks the mold 4 to separate the metal shell product from the mold 4. Then the two molds 4 move away from each other, and the top block 906 clamps the metal shell product to perform the demolding operation. After the extrusion wheel 11 squeezes the connecting rope 911 and makes the locking block 909 leave the slot 910, the square rod 903, the round rod 904 and the top block 906 move as a whole, and the top block 906 releases the metal shell product, and the metal shell product automatically falls down. A receiving device is provided under the device to receive the metal shell product.

[0052] Specific reference Figure 1 , Figure 2 and Figure 5 There are two molds 4 , and each mold 4 is provided with three cooling channels 6 , and the three cooling channels 6 are connected by a connecting pipe 7 , and a connecting pipe 8 is fixed on the connecting pipe 7 .

[0053] The split welded flat metal shell shaping mold of the present invention needs to connect the connecting pipe 8 with the cooling pipe before using the device. After the injection operation is completed, the coolant circulates in the cooling channel 6, which is convenient for cooling the metal shell raw material to speed up the forming speed of the metal shell raw material. Three cooling channels 6 are arranged on each mold 4, with a large cooling range and a fast forming speed.

[0054] Specific reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A second compression spring 905 is fixed to the outside of the mold 4, and a round rod 904 is fixed to the outer end of the second compression spring 905. The second compression spring 905 is wrapped around the outside of the round rod 904. After completing the cooling, forming and knocking operations, the two molds 4 move away from each other, and the mold 4 squeezes the second compression spring 905. The second compression spring 905 is compressed, and the round rod 904 and the top block 906 remain stationary. The top block 906 acts as a top clamp for the finished metal shell, so that the finished metal shell can be better separated from the mold 4.

[0055] In this embodiment, a first groove 907 is provided in the support sleeve 901, and a third compression spring 908 is fixed in the first groove 907, a locking block 909 is fixed at the inner end of the third compression spring 908, and a slot 910 is provided on the square rod 903, and the locking block 909 is engaged and connected in the slot 910. The locking block 909 is initially stuck in the slot 910, and the square rod 903 is in a locked state. When the two molds 4 move away from each other, after the locking block 909 leaves the slot 910, the square rod 903 is in an active state. After the second compression spring 905 is compressed to the bottom, the mold 4 squeezes the square rod 903 and the round rod 904 to move, and the top block 906 moves accordingly and leaves the finished metal shell, thereby releasing the clamping of the finished metal shell.

[0056] In this embodiment, a support frame 913 is fixed to the outer side of the support sleeve 901, and a connecting rope 911 and a limiting sleeve 912 are fixed on the inner wall of the support frame 913. The connecting rope 911 passes through the limiting sleeve 912 and is connected to the locking block 909. The connecting rope 911 has a pulling effect on the locking block 909. In the process of the two molds 4 moving away from each other, the connecting rope 911 will be squeezed. The locking block 909 moves and leaves the slot 910 under the pulling effect of the connecting rope 911, which facilitates the unlocking of the other rod 903. The limiting sleeve 912 has a limiting effect on the connecting rope 911.

[0057] At the same time, in this embodiment, a support rod 10 is fixed to the outside of the mold 4, and an extrusion wheel 11 is fixed to the outer end of the support rod 10. When the two molds 4 move away from each other, the support rod 10 and the extrusion wheel 11 move together with the mold 4. The extrusion wheel 11 finally squeezes the connecting rope 911, and the locking block 909 will move and release the lock of the other rod 903.

[0058] The split welded flat metal shell shaping mold of the present invention injects the metal shell raw material between the two molds 4 and completes the cooling and molding operation. The electric telescopic rod 3 contracts, the two molds 4 move away from each other, and the top block 906 does not move, thereby clamping the finished metal shell to facilitate auxiliary demoulding. The second compression spring 905 is compressed by the extrusion of the mold 4, the extrusion wheel 11 squeezes the connecting rope 911, and the locking block 909 moves and leaves the card slot 910 under the pulling action of the connecting rope 911, thereby unlocking the square rod 903. At this time, the second compression spring 905 is compressed to the bottom, and then the square rod 903, the round rod 904 and the top block 906 move as a whole, and the top block 906 leaves the finished metal shell, thereby loosening the finished metal shell, and the finished metal shell will automatically fall, which is convenient for automatic unloading.

[0059] Specific reference Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 The auxiliary demoulding mechanism 12 includes:

[0060] A fixing frame 1201, the fixing frame 1201 is fixed on the outside of the mold 4, and the fixing frames 1201 are evenly distributed on the mold 4 in a circumferential direction; an airtight pipe 1202, the airtight pipe 1202 is fixed on the outside of all the fixing frames 1201 on the same mold 4, and an air suction pump 1203 is fixed on the airtight pipe 1202, the air suction pump 1203 can be used to suction air, and the airtight pipe 1202 serves to connect all the fixing frames 1201 on the same mold 4.

[0061] In this embodiment, an airtight channel 1205 is opened in the fixed frame 1201, and the airtight channel 1205 is connected to the airtight pipe 1202 through a branch pipe 1204. The branch pipe 1204 serves to connect the airtight channel 1205 and the airtight pipe 1202. All airtight channels 1205 corresponding to the same mold 4 are connected.

[0062] In this embodiment, a piston 1206 is slidably connected in the airtight channel 1205, and a movable rod 1207 is fixed on the inner side of the piston 1206, and a knocking block 1210 is fixed on the inner end of the movable rod 1207. When the air pump 1203 inhales air, the piston 1206 moves under the action of pneumatics, and the knocking block 1210 moves away from the mold 4. When the air pump 1203 pauses to inhale air, the piston 1206, the movable rod 1207 and the knocking block 1210 will automatically pop open, which is convenient for automatic knocking on the mold 4. The air pump 1203 inhales intermittently, and the knocking block 1210 can repeatedly knock on the mold 4.

[0063] At the same time, in this embodiment, a second groove 1209 is opened on the fixed frame 1201, and a fourth compression spring 1208 is fixed in the second groove 1209, a movable rod 1207 is fixed to the inner end of the fourth compression spring 1208, and the fourth compression spring 1208 is wrapped around the outer side of the movable rod 1207. When the air pump 1203 inhales air, the piston 1206, the movable rod 1207 and the knocking block 1210 move as a whole. When the air pump 1203 stops inhaling air, the piston 1206, the movable rod 1207 and the knocking block 1210 automatically pop open under the action of the fourth compression spring 1208, so as to facilitate automatic knocking of the mold 4.

[0064] The split-welded flat metal shell shaping mold of the present invention, before demolding, the air pump 1203 intermittently sucks air, when the air pump 1203 sucks air, the piston 1206, the movable rod 1207 and the knocking block 1210 move as a whole, when the air pump 1203 stops sucking air, the piston 1206, the movable rod 1207 and the knocking block 1210 pop open as a whole, thereby knocking the mold 4, the knocking block 1210 can knock the mold 4 repeatedly, so as to facilitate the metal shell finished product to be separated from the mold 4.

[0065] In summary, the split-welded flat metal shell shaping mold achieves the purposes of cooling molding, auxiliary demoulding and automatic demoulding and unloading, and meets people's usage needs.

[0066] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, shall be equivalently replaced or changed, and all shall be covered within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims and their equivalents.

[0067] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the protection content of the present invention.

[0068] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A split-welded flat metal shell shaping mold, comprising a support frame (1), characterized in that: A mounting frame (2) is fixed on the top of the support frame (1), electric telescopic rods (3) are symmetrically fixed on the two inner walls of the support frame (1), a mold (4) is fixed on the inner end of the electric telescopic rod (3), a material injection port (5) is provided on the top of the mold (4), a cooling channel (6) is provided in the side wall of the mold (4), demoulding mechanisms (9) are symmetrically fixed on the two inner walls of the support frame (1), and an auxiliary demoulding mechanism (12) is fixed on the outer side of the mold (4); Wherein, the demoulding mechanism (9) comprises: A support sleeve (901), a first compression spring (902) being fixed on the inner wall of the support sleeve (901), and a square rod (903) being fixed on the inner end of the first compression spring (902); A round rod (904), wherein the round rod (904) is fixed to the inner end of the square rod (903), and the round rod (904) passes through the mold (4) and is connected to the top block (906); A second compression spring (905) is fixed to the outside of the mold (4), and a round rod (904) is fixed to the outer end of the second compression spring (905), and the second compression spring (905) is wrapped around the outside of the round rod (904); The support sleeve (901) is provided with a first groove (907), and a third compression spring (908) is fixed in the first groove (907); a locking block (909) is fixed to the inner end of the third compression spring (908); a clamping groove (910) is provided on the square rod (903), and the locking block (909) is clamped and connected in the clamping groove (910); A support frame (913) is fixed to the outside of the support sleeve (901), and a connecting rope (911) and a limiting sleeve (912) are fixed to the inner wall of the support frame (913), wherein the connecting rope (911) passes through the limiting sleeve (912) and is connected to the locking block (909); A support rod (10) is fixed to the outside of the mold (4), and an extrusion wheel (11) is fixed to the outer end of the support rod (10).

2. The split welded flat metal shell shaping mold according to claim 1, characterized in that: Two molds (4) are provided, and each mold (4) is provided with three cooling channels (6), and the three cooling channels (6) are connected via a connecting pipe (7), and a connecting pipe (8) is fixed on the connecting pipe (7).

3. The split welded flat metal shell shaping mold according to claim 1, characterized in that: The auxiliary demoulding mechanism (12) comprises: A fixing frame (1201), wherein the fixing frame (1201) is fixed to the outside of the mold (4), and the fixing frame (1201) is evenly distributed on the mold (4) in a circumferential direction; An airtight pipe (1202), wherein the airtight pipe (1202) is fixed to the outside of all the fixing frames (1201) on the same mold (4), and an air suction pump (1203) is fixed on the airtight pipe (1202).

4. The split welded flat metal shell shaping mold according to claim 3, characterized in that: An airtight passage (1205) is provided in the fixing frame (1201), and the airtight passage (1205) is connected to the airtight pipe (1202) via a branch pipe (1204).

5. The split-welded flat metal shell shaping mold according to claim 4, characterized in that: A piston (1206) is slidably connected in the airtight passage (1205), a movable rod (1207) is fixed on the inner side of the piston (1206), and a knocking block (1210) is fixed on the inner end of the movable rod (1207).

6. The split-welded flat metal shell shaping mold according to claim 5, characterized in that: The fixing frame (1201) is provided with a second groove (1209), and a fourth compression spring (1208) is fixed in the second groove (1209); a movable rod (1207) is fixed to the inner end of the fourth compression spring (1208), and the fourth compression spring (1208) is wrapped around the outer side of the movable rod (1207).

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