Die casting machine and charging barrel assembly thereof

Abstract

The invention provides a die-casting machine and a charging barrel assembly thereof, and relates to the technical field of die-casting machines, the charging barrel assembly comprises a charging barrel body, a heat exchange path adjusting structure, an annular groove, a connecting pipe, an annular baffle, a descending type circumferential distribution baffle structure, a cooling medium circulating pipeline and a heating medium circulating pipeline, and the die-casting machine adopts the charging barrel assembly; lifting type circumferentially-distributed baffle structures are evenly assembled on the outer wall of an annular groove in the length direction, the bending degree of a medium channel formed between the inner side ends of the lifting type circumferentially-distributed baffle structures and annular baffles is changed through lifting control, and the larger the bending degree is, the longer the medium flowing path is; in this way, the length of the heat exchange path can be controlled according to the amount of molten metal needing heat exchange, the heat exchange path and the molten metal are matched, the heat exchange effect is accurately regulated and controlled, and the heat exchange efficiency is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of die-casting machines, in particular to a die-casting machine and a barrel component thereof. Background Art

[0002] The die-casting machine is a casting machine that hydraulically injects molten metal into a mold under pressure, cools it and forms it, and then obtains a solid metal casting after the mold is opened. During the working process of the die-casting machine, the die-casting machine barrel is the only way to transfer the molten metal liquid into the pressure chamber.

[0003] Existing die-casting machine barrels are generally not equipped with heat exchange devices. After the high-temperature molten metal enters the barrel, the molten metal and air undergo rapid heat exchange. The working environment of the die-casting machine barrel is suddenly cold and hot, causing the mechanical properties to deteriorate and eventually shortening the service life. At the same time, the rapid change in the temperature of the molten metal will affect the mechanical properties of the die-casting workpiece;

[0004] The common heat exchange method in the prior art is coolant or hot oil circulation heat exchange. During the circulation of the heat exchange medium, the length of the heat exchange path cannot be controlled according to the amount of molten metal liquid injected, and the heat exchange effect cannot be accurately regulated. The use of an overly long heat exchange path for heat exchange of a small amount of molten metal liquid has the problem of low heat exchange efficiency, and there is room for improvement. Summary of the invention

[0005] The purpose of the present invention is to provide a die-casting machine and a barrel assembly thereof, which have the advantages of being able to control the length of the heat exchange path according to the amount of molten metal liquid that needs to be cooled, accurately regulating the heat exchange effect, and ensuring the heat exchange efficiency. This solves the technical problems that the prior art cannot control the length of the heat exchange path according to the amount of molten metal liquid injected, cannot accurately regulate the heat exchange effect, and has low heat exchange efficiency.

[0006] The present invention provides a barrel assembly, comprising:

[0007] The barrel body has a thickened wall design;

[0008] The barrel body is equipped with a heat exchange path adjustment structure, which includes:

[0009] An annular groove is coaxially arranged on the inner wall of the barrel body, and the annular groove is close to one side of the inner wall of the barrel body;

[0010] The ends of the annular groove are fixedly connected with connecting pipes at the top, bottom, front and back;

[0011] The inner ring surface of the annular groove is evenly and fixedly sleeved with an annular baffle along the length direction;

[0012] The outer wall of the annular groove is evenly equipped with a lifting circumferentially distributed baffle structure along the length direction;

[0013] The lifting type circumferentially distributed baffle structure is spaced apart from the annular baffle, and a medium channel is formed between the inner lifting end of the lifting type circumferentially distributed baffle structure and the annular baffle;

[0014] The front and rear connecting pipes are fixedly connected with a cooling medium circulation pipeline, and the upper and lower connecting pipes are fixedly connected with a heating medium circulation pipeline.

[0015] As a further optimization scheme, in order to drive the four arc-shaped baffles to rise and fall synchronously and cooperate with the annular baffle to form medium channels with different bending degrees, the lifting type circular distribution baffle structure includes:

[0016] There are four arc-shaped through holes distributed around the circumference, and the inner ends of the arc-shaped through holes are connected to the annular groove;

[0017] An arc-shaped baffle is slidably inserted in the arc-shaped through hole, and a horizontal plate is fixedly connected to the outer end of the side wall of the arc-shaped baffle;

[0018] The inner end of the arc-shaped baffle extends into the annular groove;

[0019] The outer end of the horizontal plate is vertically fixed with an electric push rod, and the inner telescopic end of the electric push rod penetrates the horizontal plate and is fixedly connected to the outer wall of the barrel body;

[0020] The four electric push rods are connected in parallel and electrically connected to an external power source.

[0021] As a further optimization scheme, in order to synchronously control the electric push rod on the lifting circular distribution baffle structure, the lifting position of the arc baffle is controlled in multiple gears, so that the lifting amount of the arc baffle is more accurately controlled. The lower end of the outer wall of the arc baffle close to the horizontal plate is equipped with a multi-gear auxiliary limit assembly, which is composed of three multi-gear auxiliary limit structures distributed longitudinally. The multi-gear auxiliary limit structure includes:

[0022] The cam mounting groove has a motor mounting groove at its upper end;

[0023] A micro motor is pasted and fixed in the motor mounting groove, and a cam is fixedly mounted on the output lower end of the micro motor;

[0024] The cam is rotatably arranged in the cam installation groove, and the protruding end of the cam extends out of the cam installation groove and abuts against the outer wall of the barrel body;

[0025] The electric push rods are electrically connected to the control cabinet in parallel, and the control cabinet is electrically connected to the micro motors respectively.

[0026] As a further optimization scheme, in order to cooperate with the arc-shaped baffle and the horizontal plate of the aluminum alloy plate for heat dissipation, the strip heat dissipation groove increases the heat dissipation area of ​​the outer wall of the arc-shaped baffle, and the outer end of the outer wall of the arc-shaped baffle away from the horizontal plate is evenly longitudinally provided with strip heat dissipation grooves;

[0027] The arc-shaped baffle plate and the horizontal plate are both made of aluminum alloy plates.

[0028] As a further optimization scheme, in order to control the flow rate of the cooling medium and the heating medium input, the feed ends of the cooling medium circulation pipeline and the heating medium circulation pipeline are fixedly equipped with flow valves, and the flow valves are close to one side of the annular groove.

[0029] As a further optimization scheme, in order to speed up the discharge speed and switch the cooling medium and the heating medium more quickly, the discharge ends of the cooling medium circulation pipeline and the heating medium circulation pipeline are fixedly equipped with a discharge pump.

[0030] As a further optimization scheme, in order to pressurize the liquid medium and speed up the circulation speed of the liquid medium when necessary, the feed ends of the cooling medium circulation pipeline and the heating medium circulation pipeline are fixedly connected with a booster pump, and the booster pump is located between the flow valve and the annular groove.

[0031] As a further optimization solution, in order to conveniently provide circulating cooling medium and heating medium through one device, it also includes:

[0032] The water-type integrated cooling and heating mold temperature controller has a cooling medium inlet and outlet fixedly connected to the outer end of the cooling medium circulation pipeline, and a heating medium inlet and outlet fixedly connected to the outer end of the heating medium circulation pipeline.

[0033] As a further optimization scheme, in order to replace the booster pump and the liquid displacement pump to boost the liquid medium when necessary and to speed up the circulation speed of the liquid medium, the end of the annular groove is equipped with a spiral air intake boost structure, which includes:

[0034] A first inclined tube is fixedly connected to the upper end of the annular groove, and a second inclined tube is fixedly connected to the lower side of the end of the annular groove;

[0035] The outer ends of the first inclined tube and the second inclined tube are fixedly connected to an external gas source;

[0036] The first inclined tube and the second inclined tube are located on the same side as the cooling medium circulation pipeline and the heating medium circulation pipeline;

[0037] The second inclined pipe is fixedly connected with a pressure relief valve.

[0038] A die-casting machine uses the above-mentioned barrel assembly to transport the discharge of the die-casting machine through the device, and performs heat exchange with adjustable heat exchange effect during the transportation process. The discharge end of the die-casting machine is connected to the feed end of the barrel body.

[0039] The present invention provides a die-casting machine and a barrel assembly thereof through improvement, which have the following improvements and advantages compared with the prior art:

[0040] The device opens an annular groove coaxially near the inner wall of the barrel body, inputs and outputs the cooling medium and the heating medium through a connecting pipe, and evenly mounts a lifting type circular distributed baffle structure on the outer wall of the annular groove along the length direction. The inner end of the lifting type circular distributed baffle structure is controlled by lifting to change the bending degree of the medium channel formed between the annular baffle and the inner end of the lifting type circular distributed baffle structure. The greater the bending degree, the longer the path through which the medium flows. In this way, the length of the heat exchange path can be controlled according to the amount of molten metal liquid that needs to be heat exchanged, so that the two are matched, the heat exchange effect is accurately regulated, and the heat exchange efficiency is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 It is a schematic diagram of the structure of the present invention;

[0043] Figure 2 It is a schematic cross-sectional view of the barrel body state of the present invention;

[0044] Figure 3 It is a schematic cross-sectional view of the second structure of the barrel body of the present invention;

[0045] Figure 4 It is a schematic diagram of the cross-sectional structure of the barrel body of the present invention;

[0046] Figure 5 This is a schematic diagram of the strip heat sink assembly structure of the present invention;

[0047] Figure 6 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0048] Figure 7 It is a schematic diagram of the local structure of the present invention;

[0049] Figure 8 It is a structural schematic diagram of the spiral air intake supercharging structure of the present invention;

[0050] Fig. 9 It is a structural schematic diagram of a first embodiment of a cross section of an annular baffle of the present invention;

[0051] Fig.10 It is a structural schematic diagram of a second embodiment of the cross section of an annular baffle of the present invention;

[0052] Fig.11 It is a structural schematic diagram of the third embodiment of the cross section of the annular baffle of the present invention.

[0053] Description of reference numerals:

[0054] 1-barrel body, 2-heat exchange path adjustment structure, 21-annular groove, 22-connecting pipe, 23-annular baffle, 24-lifting circular distribution baffle structure, 241-arc through hole, 242-arc baffle, 243-horizontal plate, 244-electric push rod, 3-water-type hot and cold integrated mold temperature controller, 4-cooling medium circulation pipeline, 41-cooling medium inlet pipe, 42-cooling medium outlet pipe, 43-first valve, 5-heating medium circulation pipeline , 51-heating medium inlet pipe, 52-heating medium outlet pipe, 53-second valve, 6-aluminum alloy cylinder, 7-strip heat dissipation groove, 8-control cabinet, 9-flow valve, 91-discharge pump, 92-boost pump, 10-spiral intake boost structure, 101-first inclined pipe, 102-second inclined pipe, 11-multi-speed auxiliary limit assembly, 111-cam mounting groove, 112-motor mounting groove, 113-micro motor, 114-cam. DETAILED DESCRIPTION

[0055] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. 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.

[0056] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0057] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] See also Figure 1-11 The present invention provides a technical solution: a barrel assembly, comprising:

[0059] The barrel body 1 has a thickened barrel wall. This design of thickening the barrel wall and then opening an annular groove 21 ensures the strength of the barrel body 1 while providing space for the opening of the annular groove 21 of the heat exchange chamber.

[0060] The barrel body 1 is equipped with a heat exchange path adjustment structure 2, which includes:

[0061] The annular groove 21 is coaxially opened on the inner wall of the barrel body 1, and the annular groove 21 is close to one side of the inner wall of the barrel body 1, which reduces the heat exchange distance and improves the heat exchange effect;

[0062] The upper and lower ends and the front and rear ends of the 21 are fixedly connected with connecting pipes 22;

[0063] An annular baffle 23 is evenly and fixedly sleeved on the inner surface of the annular groove 21 along the length direction;

[0064] The outer wall of the annular groove 21 is evenly equipped with lifting circumferentially distributed baffle structures 24 along the length direction;

[0065] The lifting type circumferentially distributed baffle structure 24 is spaced apart from the annular baffle 23, and a medium channel is formed between the inner lifting end of the lifting type circumferentially distributed baffle structure 24 and the annular baffle 23;

[0066] When in use, multiple lifting type circumferentially distributed baffle structures 24 work synchronously through external control. By controlling the lifting and lowering of the inner end of the lifting type circumferentially distributed baffle structure 24 to change the bending degree of the medium channel formed between the annular baffle, the inner end of the lifting type circumferentially distributed baffle structure 24 descends, and the gap between it and the inner wall of the annular groove 21 is away from the gap between the outer end of the annular baffle 23 and the inner wall of the annular groove 21. The bending degree of the formed medium channel is greater. The greater the bending degree, the longer the path through which the medium flows. In this way, the length of the heat exchange path can be controlled according to the amount of molten metal liquid that needs to be heat exchanged, so that the two are matched, the heat exchange effect is accurately controlled, and the heat exchange efficiency is guaranteed.

[0067] The front and rear connecting pipes 22 are fixedly connected with a cooling medium circulation pipeline 4, and the upper and lower connecting pipes 22 are fixedly connected with a heating medium circulation pipeline 5. The cooling medium circulation pipeline 4 is used to supply cooling medium into the annular groove 21, and the heating medium circulation pipeline 5 is used to supply heating medium into the annular groove 21. The heating medium and the cooling medium are not supplied at the same time.

[0068] When the molten metal enters the barrel body 1, a heating medium is supplied into the annular groove 21, so that the barrel body 1 is heated, thereby avoiding cooling of the molten metal just entering, and ensuring the stability of the quality of the die-casting process product;

[0069] When the molten metal in the barrel body 1 is hydraulically injected into the mold, the heating medium is quickly discharged, and then the cooling medium is injected into the annular groove 21 to quickly cool the barrel body 1, which can effectively prevent the molten metal from adhering to the inner wall of the barrel body 1 and extend the service life of the barrel body 1.

[0070] In some embodiments, in order to drive the four arc-shaped baffles 242 to rise and fall synchronously and cooperate with the annular baffle 23 to form medium channels with different bending degrees, the lifting circular distributed baffle structure 24 includes:

[0071] There are four arc-shaped through holes 241 distributed around the circumference, and the inner ends of the arc-shaped through holes 241 are connected to the annular groove 21;

[0072] An arc-shaped baffle plate 242 is slidably inserted in the arc-shaped through hole 241, and a horizontal plate 243 is fixedly connected to the outer end of the side wall of the arc-shaped baffle plate 242;

[0073] The inner end of the arc-shaped baffle 242 extends into the annular groove 21;

[0074] The outer end of the horizontal plate 243 is vertically fixed with an electric push rod 244, and the inner telescopic end of the electric push rod 244 penetrates the horizontal plate 243 and is fixedly connected to the outer wall of the barrel body 1;

[0075] The four electric push rods 244 are connected in parallel and electrically connected to an external power supply. The electric push rods 244 on the multiple lifting type circularly distributed baffle structures 24 are connected in parallel to the external power supply and work synchronously through external control. The electric push rods 244 contract to pull the cross plate 243 and the arc-shaped baffle 242 down, and the inner end of the arc-shaped baffle 242 passes through the arc-shaped through hole 241 and approaches the inner ring surface of the annular groove 21. The inner end of the arc-shaped baffle 242 is the inner end of the lifting type circularly distributed baffle structure 24 that can be lifted and lowered.

[0076] In some embodiments, in order to synchronously control the electric push rod 244 on the lifting circular distribution baffle structure 24, the lifting position of the arc baffle 242 is controlled at multiple gears, so that the lifting amount of the arc baffle 242 can be controlled more accurately.

[0077] The lower end of the outer wall of the arc-shaped baffle plate 242 near the horizontal plate 243 is equipped with a multi-stage auxiliary limit assembly 11, which is composed of three multi-stage auxiliary limit structures distributed longitudinally. The multi-stage auxiliary limit structures include:

[0078] The cam mounting groove 111 has a motor mounting groove 112 at its upper end;

[0079] A micro motor 113 is pasted and fixed in the motor mounting groove 112, and a cam 114 is fixedly mounted on the output lower end of the micro motor 113;

[0080] The cam 114 is rotatably disposed in the cam mounting groove 111, and the protruding end of the cam 114 extends out of the cam mounting groove 111 and abuts against the outer wall of the barrel body 1;

[0081] The parallel electric push rod 244 is electrically connected to the control cabinet 8, and the control cabinet 8 is electrically connected to the micro motor 113 respectively. The micro motor 113 is connected to an external power supply and is controlled by the control cabinet 8. The micro motor 113 drives the cam 114 to rotate in the cam mounting groove 111. When the protruding end of the cam 114 is completely rotated into the cam mounting groove 111, the lowering of the inner end of the arc baffle 242 is no longer blocked.

[0082] When in use, the control cabinet 8 is used to synchronously control multiple multi-speed auxiliary limit components 11, and the multi-speed auxiliary limit structures close to the inner sides of the multi-speed auxiliary limit components 11 are controlled to rotate the protruding ends of the cams 114 into the cam mounting grooves 111 from the inside to the outside in sequence, so that the inner end of the arc-shaped baffle 242 passes through three gears during the insertion process into the annular groove 21. The three gears are respectively that the protruding end of the cam 114 of the multi-speed auxiliary limit structure at the innermost end abuts against the outer wall limit of the barrel body 1, the protruding end of the cam 114 of the multi-speed auxiliary limit structure in the middle abuts against the outer wall limit of the barrel body 1, and the protruding end of the cam 114 of the outermost multi-speed auxiliary limit structure abuts against the outer wall limit of the barrel body 1.

[0083] In some embodiments, in order to cooperate with the arc-shaped baffle plate 242 and the horizontal plate 243 of the aluminum alloy plate to dissipate heat, the strip heat dissipation grooves 7 increase the heat dissipation area of ​​the outer wall of the arc-shaped baffle plate 242, and the outer end of the outer wall of the arc-shaped baffle plate 242 away from the horizontal plate 243 is evenly longitudinally provided with strip heat dissipation grooves 7;

[0084] The arc baffle 242 and the cross plate 243 are both made of aluminum alloy plates. The aluminum alloy plates have good thermal conductivity. When the barrel body 1 needs to be cooled, the heat carried by the circulating cooling medium can be transferred to the outside to ensure the low temperature state of the circulating cooling medium and better cool the barrel body 1.

[0085] In some embodiments, in order to control the flow rate of cooling medium and heating medium input, the feed ends of the cooling medium circulation pipeline 4 and the heating medium circulation pipeline 5 are fixedly equipped with flow valves 9, and the flow valves 9 are close to one side of the annular groove 21. The setting of the flow valves 9 can better control the amount of cooling medium and heating medium input.

[0086] In some embodiments, in order to increase the discharge speed and switch the cooling medium and the heating medium more quickly, the discharge ends of the cooling medium circulation pipeline 4 and the heating medium circulation pipeline 5 are fixedly equipped with a discharge pump 91 .

[0087] In some embodiments, in order to pressurize the liquid medium and speed up the circulation speed of the liquid medium when necessary, the feed ends of the cooling medium circulation pipeline 4 and the heating medium circulation pipeline 5 are fixedly connected with a booster pump 92, and the booster pump 92 is located between the flow valve 9 and the annular groove 21. After pressurization, the heat exchange quality can be ensured by increasing the number of cycles. At the same time, the booster pump 92 can also be used in conjunction with the drainage pump 91 to switch the cooling medium and the heating medium faster.

[0088] In some embodiments, in order to conveniently provide circulating cooling medium and heating medium through one device, so that use and operation are more convenient, it also includes:

[0089] The cooling medium inlet and outlet of the water-type integrated cooling and heating mold temperature controller 3 is fixedly connected to the outer end of the cooling medium circulation pipeline 4, and the heating medium inlet and outlet of the water-type integrated cooling and heating mold temperature controller 3 is fixedly connected to the outer end of the heating medium circulation pipeline 5.

[0090] The cooling medium circulation pipeline 4 includes a cooling medium inlet pipe 41 and a cooling medium outlet pipe 42, which are respectively fixedly connected to the cooling medium input and output ends of the water-type integrated cooling and heating mold temperature controller 3, and a first valve 43 is installed on the cooling medium inlet pipe 41 and the cooling medium outlet pipe 42;

[0091] The heat medium circulation pipeline 5 includes a heating medium inlet pipe 51 and a heating medium outlet pipe 52, which are respectively fixedly connected to the heating medium input and output ends of the water-type hot and cold integrated mold temperature controller 3, and a second valve 53 is installed on the heating medium inlet pipe 51 and the heating medium outlet pipe 52.

[0092] In some embodiments, in order to replace the booster pump 92 and the liquid displacement pump 91 to boost the liquid medium when necessary and speed up the circulation speed of the liquid medium, the end of the annular groove 21 is equipped with a spiral air intake booster structure 10. When the spiral air intake booster structure 10 is used, the booster pump 92 and the liquid displacement pump 91 are not turned on, which includes:

[0093] A first inclined tube 101 is fixedly connected to the upper end of the annular groove 21, and a second inclined tube 102 is fixedly connected to the lower side of the end of the annular groove 21;

[0094] The outer ends of the first inclined tube 101 and the second inclined tube 102 are fixedly connected to an external gas source, and the gas outlet spirals of the first inclined tube 101 and the second inclined tube 102 enter the annular groove 21, driving the liquid medium therein to accelerate the flow speed;

[0095] The first inclined pipe 101 and the second inclined pipe 102 are located on the same side as the cooling medium circulation pipeline 4 and the heating medium circulation pipeline 5;

[0096] The second inclined pipe 102 is fixedly connected with a pressure relief valve, which is used to discharge the air pressure generated after the air is supplied.

[0097] A die-casting machine uses the above-mentioned barrel assembly to transport the discharge of the die-casting machine through the device, and performs heat exchange with adjustable heat exchange effect during the transportation process. The discharge end of the die-casting machine is connected to the feed end of the barrel body 1.

[0098] In other embodiments, an aluminum alloy cylinder 6 is provided on the inner annular surface of the barrel body 1 , and a communicating through hole is opened in the aluminum alloy cylinder 6 corresponding to the feed port of the barrel body 1 . The aluminum alloy cylinder 6 can enhance the mechanical strength of the barrel body 1 .

[0099] like Figure 8-10 As shown, the cross-section of the annular baffle 23 can be designed to be different shapes, such as rectangular, inverted triangle and wavy. Different shapes have different blocking effects on the heat exchange medium. The better the blocking effect, the longer the heat exchange medium stays in the medium channel. The inverted triangle and wavy surfaces have slopes and bumps. The annular baffle 23 with an inverted triangle and wavy cross-section has a better blocking effect on the heat exchange medium than the annular baffle 23 with a rectangular cross-section and a flat surface.

[0100] Working principle:

[0101] The annular groove 21 is coaxially opened on the inner wall of the barrel body 1, and the annular groove 21 is close to one side of the inner wall of the barrel body 1, which reduces the heat exchange distance and improves the heat exchange effect. The lifting type circumferentially distributed baffle structure 24 and the annular baffle 23 are spaced apart, and a medium channel is formed between the inner lifting end of the lifting type circumferentially distributed baffle structure 24 and the annular baffle 23;

[0102] The front and rear connecting pipes 22 are fixedly connected with a cooling medium circulation pipeline 4, and the upper and lower connecting pipes 22 are fixedly connected with a heating medium circulation pipeline 5. The cooling medium circulation pipeline 4 is used to supply cooling medium into the annular groove 21, and the heating medium circulation pipeline 5 is used to supply heating medium into the annular groove 21. The heating medium and the cooling medium are not supplied at the same time. When the molten metal liquid enters the barrel body 1, the heating medium is supplied into the annular groove 21, so that the barrel body 1 is heated, avoiding cooling of the molten metal liquid that has just entered, thereby ensuring the stability of the quality of the die-casting process products; when the molten metal in the barrel body 1 is hydraulically injected into the mold, the heating medium is quickly discharged, and then the cooling medium is injected into the annular groove 21 to quickly cool the barrel body 1, which can effectively prevent the molten metal liquid from adhering to the inner wall of the barrel body 1 and extend the service life of the barrel body 1;

[0103] When in use, multiple lifting type circularly distributed baffle structures 24 work synchronously through external control. By controlling the lifting and lowering of the inner end of the lifting type circularly distributed baffle structure 24 to change the bending degree of the medium channel formed between the annular baffle, the inner end of the lifting type circularly distributed baffle structure 24 descends, and the gap between it and the inner wall of the annular groove 21 is away from the gap between the outer end of the annular baffle 23 and the inner wall of the annular groove 21. The bending degree of the formed medium channel is greater. The greater the bending degree, the longer the path through which the medium flows. In this way, the length of the heat exchange path can be controlled according to the amount of molten metal liquid that needs to be heat exchanged, so that the two are matched, the heat exchange effect is accurately controlled, and the heat exchange efficiency is guaranteed.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A barrel assembly, characterized in that: include: The barrel body (1) has a thickened barrel wall design; The barrel body (1) is equipped with a heat exchange path adjustment structure (2), which comprises: An annular groove (21) is coaxially formed on the inner wall of the barrel body (1), and the annular groove (21) is close to one side of the inner wall of the barrel body (1); The upper and lower ends and the front and rear ends of the annular groove (21) are fixedly connected with connecting pipes (22); An annular baffle (23) is evenly and fixedly sleeved on the inner annular surface of the annular groove (21) along the length direction; The outer wall of the annular groove (21) is evenly equipped with lifting circumferentially distributed baffle structures (24) along the length direction; The lifting type circumferentially distributed baffle structure (24) and the annular baffle (23) are spaced apart, and a medium channel is formed between the inner lifting end of the lifting type circumferentially distributed baffle structure (24) and the annular baffle (23); The front and rear connecting pipes (22) are fixedly connected to a cooling medium circulation pipeline (4), and the upper and lower connecting pipes (22) are fixedly connected to a heating medium circulation pipeline (5).

2. A cartridge assembly according to claim 1, characterized in that: The lifting type circumferentially distributed baffle structure (24) comprises: There are four arc-shaped through holes (241) distributed around the circumference, and the inner ends of the arc-shaped through holes (241) are connected to the annular groove (21); An arc-shaped baffle (242) is slidably inserted into the arc-shaped through hole (241), and a transverse plate (243) is fixedly connected to the outer end of the side wall of the arc-shaped baffle (242); The inner end of the arc-shaped baffle (242) extends into the annular groove (21); The outer end of the horizontal plate (243) is vertically fixedly equipped with an electric push rod (244), and the inner telescopic end of the electric push rod (244) penetrates the horizontal plate (243) and is fixedly connected to the outer wall of the barrel body (1); The four electric push rods (244) are connected in parallel and electrically connected to an external power source.

3. A cartridge assembly according to claim 2, characterized in that: A multi-stage auxiliary limiting assembly (11) is mounted on the lower end of the outer wall of the arc-shaped baffle plate (242) close to the horizontal plate (243), and the multi-stage auxiliary limiting assembly (11) is composed of three multi-stage auxiliary limiting structures distributed longitudinally. The multi-stage auxiliary limiting structures include: A cam mounting groove (111) having a motor mounting groove (112) formed at its upper end; A micro motor (113) is glued and fixed in the motor installation groove (112), and a cam (114) is fixedly mounted on the output lower end of the micro motor (113); The cam (114) is rotatably disposed in the cam mounting groove (111), and the protruding end of the cam (114) extends out of the cam mounting groove (111) and abuts against the outer wall of the barrel body (1); The electric push rod (244) is electrically connected to the control cabinet (8) in parallel, and the control cabinet (8) is electrically connected to the micro motor (113) respectively.

4. A cartridge assembly according to claim 2, characterized in that: The outer end of the outer wall of the arc-shaped baffle plate (242) away from the horizontal plate (243) is evenly and longitudinally provided with strip-shaped heat dissipation grooves (7); The arc-shaped baffle plate (242) and the horizontal plate (243) are both made of aluminum alloy plates.

5. A cartridge assembly according to claim 1, characterized in that: The feed ends of the cooling medium circulation pipeline (4) and the heating medium circulation pipeline (5) are fixedly equipped with flow valves (9), and the flow valves (9) are close to one side of the annular groove (21).

6. A cartridge assembly according to claim 5, characterized in that: The discharge ends of the cooling medium circulation pipeline (4) and the heating medium circulation pipeline (5) are fixedly equipped with a drainage pump (91).

7. A cartridge assembly according to claim 5, characterized in that: The feed ends of the cooling medium circulation pipeline (4) and the heating medium circulation pipeline (5) are fixedly connected to a booster pump (92), and the booster pump (92) is located between the flow valve (9) and the annular groove (21).

8. A cartridge assembly according to claim 1, characterized in that: Also includes: The water-type integrated cooling and heating mold temperature controller (3) has a cooling medium inlet and outlet fixedly connected to the outer end of a cooling medium circulation pipeline (4), and the heating medium inlet and outlet of the water-type integrated cooling and heating mold temperature controller (3) is fixedly connected to the outer end of a heating medium circulation pipeline (5).

9. A cartridge assembly according to claim 7, characterized in that: The end of the annular groove (21) is equipped with a spiral air intake supercharging structure (10), which comprises: A first inclined tube (101) is fixedly connected to the upper end of the annular groove (21), and a second inclined tube (102) is fixedly connected to the lower side of the end of the annular groove (21); The outer ends of the first inclined tube (101) and the second inclined tube (102) are fixedly connected to an external gas source; The first inclined tube (101) and the second inclined tube (102) are located on the same side as the cooling medium circulation pipeline (4) and the heating medium circulation pipeline (5); The second inclined pipe (102) is fixedly connected to a pressure relief valve.

10. A die casting machine, using a barrel assembly as claimed in any one of claims 1 to 9, characterized in that: The discharge end of the die-casting machine is connected to the feed end of the barrel body (1).

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