Firearm cartridge receiver forming tool

Abstract

The utility model relates to a firearm cartridge receiver forming tool which comprises a die body and a supporting assembly, the die body and the supporting assembly are matched with each other to form a firearm cartridge receiver die cavity, the supporting assembly adjustably supports the die body above a base, and a plurality of heat exchange inserting columns for temperature control are inserted in a static die body and a movable die body of the die body in an array mode. The input ends of the multiple heat exchange inserting columns communicate with a cooling assembly through forked hoses, the output ends of the multiple heat exchange inserting columns communicate with the input end of a spiral heat preservation pipe wrapping an injection molding material conveying pipe through the forked hoses, and the output end of the spiral heat preservation pipe further communicates with the input end of the cooling assembly so as to construct a circulating temperature control pipeline. And the injection molding material conveying pipe is communicated with the casing mold cavity in a manner of penetrating through the static mold body. According to the utility model, the stability of the mold body can be ensured, and meanwhile, the cooling and demolding of the injection-molded casing workpiece can be quickly completed, so that the production efficiency and quality of the casing workpiece are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of firearm receiver production equipment, in particular to a firearm receiver molding tool. Background Art

[0002] Receiver refers to the main part of a firearm (except a pistol). The metal shell / receiver wall defines a bolt for locking, firing, and ejecting, and the barrel and magazine are also connected to the receiver to form the main structure of the firearm. Since the receiver is an important key component of a firearm, its quality has a great impact on the overall performance of the firearm. However, receiver castings have the characteristics of complex structure, large size, large thin-wall area, and large cross-sectional mutation, which makes them difficult to cast. When using the existing structure of the casting mold, the casting product is prone to casting defects such as looseness, cracks, deformation, and insufficient pouring. As a result, the qualified rate of high-temperature alloy receiver casting products has always been very low. In addition, although the existing die-casting method can improve the structural density and strength of the workpiece to a certain extent, due to the presence of many thin walls, bosses and inner groove areas in the receiver, the existing die-casting equipment cannot ensure that the die-cast receiver workpiece can be completely demolded, and it is very easy to have corner defects. In addition, although the external cooling mechanism can accelerate the shrinkage and demolding of the casing workpiece in the die-casting cavity, the heat transfer efficiency of the external cooling mechanism is low due to the high working pressure borne by the die-casting mold and the thick mold body, which seriously affects the efficiency of mass production. As a result, the existing die-casting mold cannot be well adapted to the molding scenario of the casing. An improved die-casting mold is urgently needed for the production of high-quality casings. Utility Model Content

[0003] The utility model aims to provide a firearm receiver molding tool that can quickly complete the cooling and demolding of an injection-molded receiver workpiece while ensuring the stability of a mold body, thereby improving the efficiency and quality of the receiver workpiece production, so as to solve the problems in the prior art that when the receiver is produced by casting, the receiver workpiece is very prone to casting defects such as looseness, cracks, deformation, insufficient pouring, etc., and the existing general die-casting equipment has low heat dissipation efficiency and cannot effectively adapt to the production requirements of a receiver with a complex contour.

[0004] The technical solution adopted by the utility model is: a firearm receiver molding tool, including a mold body that cooperates with each other to construct a firearm receiver cavity and a support component that can adjustably support the mold body above a base, a plurality of heat exchange plugs for temperature control are inserted in an array on the static mold body and the dynamic mold body of the mold body, the input ends of the plurality of heat exchange plugs are connected to the cooling component through a forked hose, and the output ends thereof are connected to the input end of a spiral insulation pipe that wraps an injection molding material delivery pipe through the forked hose, the output end of the spiral insulation pipe is also connected to the input end of the cooling component to construct a circulating temperature control pipeline, wherein the injection molding material delivery pipe is connected to the receiver cavity in a manner of penetrating the static mold body.

[0005] According to a preferred embodiment, the heat exchange plug column includes a shell column, an inlet plug, an outlet plug and a heat exchange plate, wherein a flow guide cavity is opened in the shell column, and the end of the shell column is inlaid with the heat exchange plate whose single-side surface is in the flow guide cavity; the inlet plug and the outlet plug are inserted into the shell column in a parallel manner, and the insertion front ends of the inlet plug and the outlet plug are connected to the flow guide cavity, thereby defining a flow channel for the heat transfer fluid to flow into and out of the flow guide cavity in one direction.

[0006] According to a preferred embodiment, the inlet pipes belonging to different heat exchange plugs are connected to the branch pipe heads of the bifurcated hose connected to the cooling assembly; and a plurality of parallel outlet pipes are connected to the branch pipe heads of the bifurcated hose connected to the spiral insulation pipe.

[0007] According to a preferred embodiment, a positioning installation groove for installing a locking assembly is symmetrically opened on the side wall surface of the shell column, and the locking assembly includes a rotating shaft horizontally inserted in the positioning installation groove, a deflection plate sleeved on the rotating shaft, and a positioning spring installed at the bottom of the positioning installation groove to limit the initial position of the deflection plate. A positioning block that can be adjusted to extend to the outside of the positioning installation groove is also provided on the plate surface of the deflection plate.

[0008] According to a preferred embodiment, the two surface arrays opposite to each other of the static mold body and the dynamic mold body are provided with a plurality of insertion holes distributed in the same area as the cross-section of the casing mold cavity, and positioning grooves for accommodating at least part of the positioning blocks are also provided on the inner side walls of the holes.

[0009] According to a preferred embodiment, the static mold body is supported on the base by the first lifting column of the supporting assembly; a through-gate is provided on the lower surface of the static mold body, and the input end of the through-gate is connected to the injection material conveying pipe.

[0010] According to a preferred embodiment, a high-pressure electromagnetic valve capable of limiting the input of materials is also provided in the through-sprue.

[0011] According to a preferred embodiment, the support assembly further comprises a mounting plate suspended above the base by a plurality of second lifting support rods, and the movable mold body is detachably mounted on the lower surface of the mounting plate.

[0012] According to a preferred embodiment, the cooling assembly includes a heat dissipation unit and a shunt output pipe connected to an output end of the heat dissipation unit, wherein two branch outlets of the shunt output pipe are connected to the main pipe heads of two parallel-connected bifurcated hoses.

[0013] According to a preferred embodiment, an exhaust hole capable of communicating with a vacuum generating unit is also provided on the movable mold body.

[0014] The beneficial effects of the utility model are:

[0015] The heat exchange pins provided in the present application can perform efficient heat transfer to the casing cavity defined by the mold body without causing excessive damage to the mold body and ensuring the inherent structural strength and stability of the mold body, thereby accelerating the cooling and shrinkage of the casing workpiece die-cast in the casing cavity under the heat transfer action of the heat exchange pins, thereby accelerating the separation between the casing workpiece and the casing cavity, and the heat exchange pins arranged in a multi-point array can effectively perform precise heat transfer cooling on the complex thin walls, bosses and inner groove areas of the casing workpiece, so that the complex areas can obtain effective and rapid heat dissipation and efficient cooling and solidification, thereby ensuring the integrity of the thin walls, bosses and inner groove areas during the demolding process and after demolding, thereby improving the quality of casing production and accelerating the efficiency of die-casting production. Compared with the pouring process, the casing workpieces produced by die-casting greatly reduce the occurrence of casting defects such as looseness, cracks, deformation, and insufficient pouring, so that the quality of the casing workpieces produced is significantly improved. The heat exchange pins inserted in the mold body can efficiently and accurately exchange heat and improve the heat dissipation efficiency of the die-casting mold body, thereby improving the efficiency of casing workpiece production.

[0016] The present application ensures the overall structural strength and stability of the mold body by opening holes in an array, while enabling the heat exchange pins for heat exchange to be closer to the casing cavity and accelerate the heat transfer in the casing cavity, thereby accelerating the cooling and shrinkage of the casing workpiece after molding, so as to complete the die casting and cooling demolding in a shorter time. In addition, the effective and short-distance heat transfer can ensure that the complex surface of the casing workpiece can obtain efficient heat transfer and produce shrinkage changes with good integrity and consistency, thereby ensuring the integrity of the surface contour after shrinkage and improving the efficiency and quality of the injection molding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a preferred firearm receiver molding tool proposed by the utility model;

[0018] Figure 2 The utility model is a schematic structural diagram of a heat exchange pin of a preferred firearm receiver molding tool.

[0019] Reference numerals list

[0020] 1: mold body; 2: support assembly; 3: base; 4: heat exchange plug; 5: bifurcated hose; 6: spiral insulation pipe; 7: cooling assembly; 8: injection material conveying pipe; 11: static mold body; 12: dynamic mold body; 13: socket; 21: first lifting column; 22: second lifting support rod; 23: mounting plate; 41: shell column; 42: inlet plug; 43: outlet plug; 44: heat exchange plate; 45: positioning assembly; 51: branch pipe head; 52: main pipe head; 71: heat dissipation unit; 72: diversion output pipe; 111: through-injection port; 112: high-pressure solenoid valve; 121: exhaust hole; 122: negative pressure exhaust unit; 131: positioning groove; 411: guide cavity; 412: positioning mounting groove; 451: rotating shaft; 452: deflection plate; 453: positioning spring; 454: positioning block. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be briefly introduced below in combination with the drawings and the descriptions of the embodiments or the prior art. Obviously, the following descriptions of the structures of the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] The technical solution provided by the present invention will be described in detail below by way of examples with reference to the accompanying drawings. It should be noted that the description of these examples is used to help understand the present invention, but does not constitute a limitation of the present invention. In some examples, some implementation methods are not described or are not described in detail because they belong to existing or conventional technologies.

[0023] In addition, the technical features recorded in this article, or the steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can also be combined in any suitable manner in one or more embodiments. For those skilled in the art, it is easy to understand that the steps or operation sequence of the methods related to the embodiments provided herein can also be changed. Any order in the drawings and embodiments is only for illustrative purposes and does not imply a requirement to follow a certain order unless it is explicitly stated that a certain order is required.

[0024] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, under reasonable circumstances (not constituting a self-contradiction), include direct and indirect connections (couplings).

[0025] The following is a detailed description with reference to the accompanying drawings.

[0026] Example 1

[0027] The present application provides a firearm receiver molding tool, which includes a mold body 1, a support assembly 2, a base 3, a heat exchange plug 4, a bifurcated hose 5, a spiral insulation pipe 6, a cooling assembly 7 and an injection material conveying pipe 8.

[0028] according to Figure 1-2In a specific embodiment shown, a mold body 1 is assembled by splicing to construct a receiver mold cavity of a firearm. A support assembly 2 is used to adjustably support the mold body 1 above a base 3. A plurality of heat exchange pins 4 for temperature control are inserted in an array on both the static mold body 11 and the dynamic mold body 12 of the mold body 1. The input ends of the plurality of heat exchange pins 4 are connected to a cooling assembly 7 through a forked hose 5. The output end of the heat exchange pin 4 is connected to the input end of a spiral insulation pipe 6 that wraps an injection molding material delivery pipe 8 through a forked hose 5. The output end of the spiral insulation pipe 6 is also connected to the input end of the cooling assembly 7 to construct a circulating temperature control pipeline. The injection molding material delivery pipe 8 is connected to the receiver mold cavity by penetrating the static mold body 11. The heat exchange pins 4 provided in the present application can perform efficient heat transfer to the casing cavity defined by the mold body 1 without causing excessive damage to the mold body 1 and ensuring the inherent structural strength and stability of the mold body 1, thereby accelerating the cooling and shrinkage of the casing workpiece die-cast in the casing cavity under the heat transfer action of the heat exchange pins 4, thereby accelerating the separation between the casing workpiece and the casing cavity, and the heat exchange pins 4 arranged in a multi-point array can effectively perform precise heat transfer cooling on the complex thin walls, bosses and inner groove areas of the casing workpiece, so that the complex areas can obtain effective and rapid heat dissipation and efficient cooling and solidification, thereby ensuring the integrity of the thin walls, bosses and inner groove areas during the demolding process and after demolding, thereby improving the quality of casing production and accelerating the efficiency of die-casting production. Compared with the pouring process, the casing workpiece produced by die-casting greatly reduces the occurrence of casting defects such as looseness, cracks, deformation, and insufficient pouring, so that the quality of the casing workpiece produced is significantly improved, and the heat exchange pins 4 inserted in the mold body can efficiently and accurately exchange heat and improve the heat dissipation efficiency of the die-casting mold body, thereby improving the efficiency of casing workpiece production. The present application also circulates the heat transfer fluid flowing through the heat exchange pins 4 by setting a circulation loop connected to the heat exchange pins 4 to continuously and efficiently transfer heat, especially the heat transfer fluid flowing through the heat exchange pins 4 and absorbing heat can be used to preheat the injection molding material conveying pipe 8, thereby ensuring the molten state of the metal material flowing through the injection molding material conveying pipe 8, avoiding the defect of condensation of the metal flow during the conveying process and adhering to the pipe wall, and improving the feasibility and integrity of the conveying.

[0029] Preferably, the mold body 1 includes a static mold body 11 and a dynamic mold body 12 that are connected to each other to form a casing mold cavity. The two opposite surfaces of the static mold body 11 and the dynamic mold body 12 are arrayed with a plurality of plug holes 13 distributed in the same area as the cross section of the casing mold cavity, that is, the surface of the static mold body 11 away from the dynamic mold body 12 and the surface of the dynamic mold body 12 away from the static mold body 11 are both provided with a plurality of plug holes 13 for installing heat exchange pins 4, so that the heat exchange pins 4 can be inserted into the plug holes 13 to efficiently cool and dissipate heat for the casing mold cavity. Preferably, the distribution area of ​​the plug holes 13 provided in the present application is roughly corresponding to the maximum cross-sectional contour area of ​​the casing mold cavity in a plane perpendicular to the axis of the plug holes 13, so that the heat exchange pins 4 in the plug holes 13 can be targeted to quickly cool and dissipate heat for the range covered by the casing mold cavity. Preferably, a positioning groove 131 for accommodating at least part of the positioning block 454 is also provided on the inner side wall of the hole cavity of the plug hole 13. The positioning groove 131 is used to cooperate with the heat exchange pin 4 to limit the working position of the heat exchange pin 4 after it is inserted into the socket 13, so as to ensure the plugging stability of the heat exchange pin 4 in the socket 13. Preferably, the static mold body 11 is supported on the base 3 by the first lifting column 21 of the support assembly 2. Further preferably, a through-sprue 111 is provided on the lower surface of the static mold body 11. The lower end injection port provided in the present application can more effectively carry out bottom-up filling, ensure the fullness of the filling and reduce the generation rate of the cavity gap, thereby improving the integrity of the casing workpiece after molding. Specifically, the input end of the through-sprue 111 is connected to the injection material delivery pipe 8. Preferably, a high-pressure solenoid valve 112 capable of limiting the input of the material is also provided in the through-sprue 111. Preferably, the high-pressure solenoid valve 112 provided in the present application is a conventional pressure valve body, which is used to limit the hydraulic pressure during material input, so that the material can be poured into the casing mold cavity by high-pressure injection only when a specific pressure is reached, thereby forming a casing workpiece blank with density and die-casting parameters that meet the standards in the casing mold cavity. Preferably, an exhaust hole 121 that can be connected to a negative pressure exhaust unit 122 is also provided on the movable mold body 12. Preferably, the negative pressure exhaust unit 122 can use a conventional vacuum exhaust pump, so that it can effectively extract the gas in the casing mold cavity, so that the casing mold cavity can be in a state of waiting to be filled that is roughly close to vacuum, so that the material can more effectively and fully fill the casing mold cavity, reduce the amount of bubbles and pores generated during the die-casting process, and thus improve the quality of the casing workpiece.The static mold body 11 and the dynamic mold body 12 provided in the present application are both thick molds with high hardness and strength, so that the mold cavity constructed by the two can be used for high-pressure injection molding, effectively reducing the risk of damage and deformation of the mold body caused by high-pressure conditions. The present application opens the socket 13 in an array to ensure the overall structural strength and stability of the mold body while enabling the heat exchange pin 4 for heat exchange to be closer to the casing mold cavity and accelerate the heat transfer in the casing mold cavity, thereby accelerating the cooling and shrinkage of the casing workpiece after molding, so as to complete the die casting and cooling demolding in a shorter time, and the effective and short-distance heat transfer can ensure that the complex surface of the casing workpiece can obtain efficient heat transfer and produce shrinkage changes with good integrity and consistency, thereby ensuring the integrity of its surface contour after shrinkage and improving the efficiency and quality of the injection molding process.

[0030] Preferably, the support assembly 2 includes a first lifting column 21, a second lifting support rod 22 and a mounting plate 23 for supporting the static mold body 11. Preferably, a plurality of second lifting support rods 22 support the mounting plate 23 in suspension above the base 3. Further preferably, the lower surface of the mounting plate 23 is detachably mounted with a movable mold body 12, so that the movable mold body 12 is suspended directly above the static mold body 11 in a manner that can adjust the height. The first lifting column 21 and the second lifting support rod 22 provided in the present application can respectively adjust the actual working positions of the static mold body 11 and the movable mold body 12, so that the two can be connected to each other at different height levels according to needs to construct a complete casing mold cavity.

[0031] Preferably, the heat exchange plug 4 includes a shell column 41, an inlet plug 42, an outlet plug 43 and a heat exchange plate 44. Preferably, a flow guide cavity 411 is opened in the shell column 41. Further preferably, a heat exchange plate 44 with a single side surface in the flow guide cavity 411 is inlaid at the end of the shell column 41. Preferably, the inlet plug 42 and the outlet plug 43 are inserted into the shell column 41 in a mutually parallel manner. Preferably, the insertion front ends of the inlet plug 42 and the outlet plug 43 are both connected to the flow guide cavity 411, thereby defining a flow channel for the heat transfer liquid to flow into and out of the flow guide cavity in one direction. Preferably, the heat exchange plate 44 is electrically connected to an external power supply through a wire inserted in the shell column 41 to perform heat exchange work according to demand. The heat exchange plate 44 used in the present application is a semiconductor heat exchange plate, which can form a heat absorption end and a heat release end on both sides of its plate body when powered on, thereby realizing the directional transfer of heat between the two chambers separated by it. Preferably, the inlet plugs 42 belonging to different heat exchange plugs 4 are connected to the branch pipe heads 51 of the bifurcated hose 5 connected to the cooling assembly 7. Preferably, a plurality of parallel outflow plugs 43 are connected to the branch pipe heads 51 of the bifurcated hose 5 connected to the spiral insulation pipe 6. Preferably, a positioning installation groove 412 for installing the positioning assembly 45 is symmetrically provided on the side wall surface of the shell column 41. Preferably, the positioning assembly 45 includes a rotating shaft 451 inserted horizontally into the positioning installation groove 412, a deflection plate 452 sleeved on the rotating shaft 451, and a positioning spring 453 installed at the bottom of the positioning installation groove 412 to limit the initial position of the deflection plate 452. Further preferably, a positioning block 454 that can be adjusted to extend to the outside of the positioning installation groove 412 is also provided on the plate surface of the deflection plate 452. The inlet plug 42 and the outlet plug 43 provided in the present application respectively introduce or lead the heat transfer liquid into or out of the guide cavity 411, so that the heat transfer liquid flows in a directional manner in the guide cavity 411 and efficiently takes away the heat transferred to the guide cavity 411 by the heat exchange plate 44, thereby realizing efficient and continuous heat transfer of the heat exchange plate 44 to the mold body 1. The present application also conveys the heat transfer liquid output from the outlet plug 43 to the spiral insulation pipe 6 to preheat the injection molding material conveying pipe 8 to ensure that the injection molding material conveyed by it can maintain a high molten state. Preferably, the input end of the injection molding material conveying pipe 8 is connected to a die casting machine, which is an existing device that can inject molten metal liquid into the mold cavity at a specific high pressure to achieve die casting.

[0032] Preferably, the cooling assembly 7 includes a heat dissipation unit 71 and a shunt output pipe 72 connected to the output end of the heat dissipation unit 71. Preferably, the two branch outlets of the shunt output pipe 72 are connected to the main pipe heads 52 of two parallel bifurcated hoses 5. Specifically, the two bifurcated hoses 5 respectively transport low-temperature heat transfer liquid to the heat exchange plugs 4 inserted on the static mold body 11 and the dynamic mold body 12. Preferably, the inlet of the main pipe head 52 and the outlet of the shunt output pipe 72 are both provided with electromagnetic conduction valves. Preferably, the cooling assembly 7 can cool the heat transfer liquid input into it. Further preferably, the cooling component 7 includes a controller, a variable frequency compressor, a variable frequency fan, an electronic expansion valve, a pump, etc. The controller performs refrigeration according to the set temperature. When the refrigeration is working, the variable frequency compressor, the variable frequency fan, the electronic expansion valve, and the pump are started. The variable frequency compressor compresses the gaseous refrigerant into a high-temperature and high-pressure gaseous state, and sends it to the condenser for cooling through the variable frequency fan. After cooling, it becomes a medium-temperature and high-pressure liquid refrigerant and enters the drying filter for filtration and dehumidification. The medium-temperature liquid refrigerant is throttled and reduced in pressure by the electronic expansion valve, and becomes a low-temperature and low-pressure gas-liquid mixture. It absorbs heat in the liquid through the evaporator and vaporizes, becomes a gaseous state, and then returns to the compressor to continue compression, and continues to circulate for refrigeration. During this period, the controller will adjust the variable frequency compressor, the variable frequency fan, and the electronic expansion valve in real time to achieve the best state. When approaching the set temperature, the variable frequency compressor and the fan reduce the frequency, and the electronic expansion valve adjusts the refrigerant flow, which not only ensures the accuracy of the set temperature, but also saves energy consumption. The cooling component 7 can directly adopt the existing technology.

[0033] The present utility model is not limited to the above optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope of the claims of the present utility model fall within the protection scope of the present utility model. Those skilled in the art should understand that the present utility model specification and its drawings are illustrative and do not constitute limitations on the claims. The protection scope of the present utility model is defined by the claims and their equivalents. Throughout the text, the features guided by "preferably" are only an optional method and should not be understood as having to be set. Therefore, the applicant reserves the right to abandon or delete the relevant preferred features at any time.

Claims

1. A firearm receiver molding tool, comprising a mold body (1) for forming a receiver mold cavity and a support assembly (2) for adjustably supporting the mold body (1) above a base (3), characterized in that: A plurality of heat exchange plugs (4) for temperature control are inserted in an array on the static mold body (11) and the dynamic mold body (12) of the mold body (1); the input ends of the plurality of heat exchange plugs (4) are connected to the cooling assembly (7) through a bifurcated hose (5), and the output ends thereof are connected to the input end of a spiral insulation pipe (6) wrapping the injection molding material conveying pipe (8) through the bifurcated hose (5); the output end of the spiral insulation pipe (6) is also connected to the input end of the cooling assembly (7) to construct a circulating temperature control pipeline, wherein: The injection material conveying pipe (8) is communicated with the casing mold cavity in a manner of penetrating the static mold body (11).

2. The firearm receiver molding tool according to claim 1, characterized in that: The heat exchange plug (4) comprises a shell column (41), an inlet plug (42), an outlet plug (43) and a heat exchange fin (44), wherein: A flow guiding cavity (411) is provided in the shell column (41), and the end of the shell column (41) is inlaid with the heat exchange fin (44) whose single-side surface is located in the flow guiding cavity (411); The inlet plug (42) and the outlet plug (43) are inserted into the shell column (41) in a mutually parallel manner, and the insertion front ends of the inlet plug (42) and the outlet plug (43) are both connected to the flow guide cavity (411), thereby defining a flow channel for the heat transfer fluid to flow into and out of the flow guide cavity in one direction.

3. The firearm receiver molding tool as claimed in claim 2, characterized in that: The inlet plugs (42) belonging to different heat exchange plugs (4) are connected to the branch pipe heads (51) of the bifurcated hoses (5) connected to the cooling assembly (7); A plurality of parallel outflow intubations (43) are in communication with a branch pipe head (51) of the bifurcated hose (5) connected to the spiral insulation pipe (6).

4. The firearm receiver molding tool as claimed in claim 3, characterized in that: A positioning installation groove (412) for installing a positioning assembly (45) is symmetrically provided on the side wall surface of the shell column (41). The positioning assembly (45) comprises a rotating shaft (451) inserted transversely into the positioning installation groove (412), a deflection plate (452) sleeved on the rotating shaft (451), and a positioning spring (453) installed at the bottom of the positioning installation groove (412) to define the initial position of the deflection plate (452). A positioning block (454) is also provided on the plate surface of the deflection plate (452) and is extendable adjustably to the outside of the positioning installation groove (412).

5. The firearm receiver molding tool as claimed in claim 4, characterized in that: The two surfaces of the static mold body (11) and the movable mold body (12) facing each other are arrayed with a plurality of insertion holes (13) distributed in the same area as the cross section of the casing mold cavity, and the inner side wall of the hole cavity of the insertion hole (13) is also provided with a positioning groove (131) for accommodating at least part of the positioning block (454).

6. The firearm receiver molding tool as claimed in claim 5, characterized in that: The static mold body (11) is supported on the base (3) via a first lifting column (21) of the support assembly (2); A through-injection port (111) is provided on the lower surface of the static mold body (11), and an input end of the through-injection port (111) is connected to the injection material conveying pipe (8).

7. The firearm receiver molding tool according to claim 6, characterized in that: A high-pressure electromagnetic valve (112) capable of limiting the input of materials is also provided in the through-injection port (111).

8. The firearm receiver molding tool as claimed in claim 7, characterized in that: The support assembly (2) further comprises a mounting plate (23) suspended above the base (3) by means of a plurality of second lifting support rods (22), the movable mold body (12) being detachably mounted on the lower surface of the mounting plate (23).

9. The firearm receiver molding tool as claimed in claim 8, characterized in that: The cooling assembly (7) comprises a heat dissipation unit (71) and a flow splitting output pipe (72) connected to the output end of the heat dissipation unit (71), wherein: The two branch outlets of the diversion output pipe (72) are in communication with the main pipe heads (52) of the two parallel-connected bifurcated hoses (5).

10. The firearm receiver molding tool according to claim 9, characterized in that: The movable mold body (12) is also provided with an exhaust hole (121) capable of being connected to a negative pressure exhaust unit (122).

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