Full-automatic die casting machine for environment-friendly die-cast firework inner tube

Abstract

The application discloses a full-automatic die-casting machine for environment-friendly die-casting of an inner cylinder of a firework, which comprises a rack, an extruding device, a die-casting device, a moving device for moving the extruding device into the die-casting device, and a heating device for supplying heat to the die-casting device; the extruding device comprises a material box, the bottom of the material box is uniformly provided with injection nozzles, the material box is provided with an extruding plate, the material box is provided with an extruding device for driving the extruding plate to move up and down, the bottom of the material box is provided with material liquid for liquid sealing, and the space in the material box and between the material liquid and the extruding plate is a negative pressure space; the die-casting device comprises an upper die plate, a lower die plate, a first driving device for driving the upper die plate to move up and down reciprocatingly, the lower die plate is uniformly provided with die cavities, the bottom of each die cavity is provided with a lower die core, and the upper die plate is provided with upper die cores corresponding to the die cavities one by one. The application has the advantages of simple structure and high practicability.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fireworks inner tube die casting machine, in particular, to an environmentally friendly full-automatic die casting machine for die casting fireworks inner tube. BACKGROUND

[0002] Fireworks, also known as firecrackers, fireworks, fireworks, and firecrackers, are entertainment products made of gunpowder, used to produce sound and light colors, often used in grand ceremonies or performances.

[0003] Fireworks are actually similar in structure to firecrackers, both of which contain black powder and powder. In order to achieve good performance, fireworks and shell fillings are filled with a large amount of gunpowder for launching and exploding. A 20cm diameter shell will explode at an altitude of about 200m after launching, and the radius covered by these stars is about 80m.

[0004] At present, most of the fireworks inner tube is made of multi-layered hardboard, which is manually pasted into a cylindrical shape by hand or machine. After drying, a containing cavity for containing firecracker powder is formed by filling and tamping soil at the bottom of the fireworks inner tube. Then, a hole is punched in the bottom layer of soil to pass the fuse, and then the launching powder and effect powder are loaded into the fireworks inner tube.

[0005] And Chinese patent application No. 202010763853.6, entitled "A new environmentally friendly die-casting fireworks inner tube formula and its structure and over-fire method" discloses that it includes the following components: paper pulp, starch, and lime powder, with a mass distribution ratio of paper pulp 25-80%, starch 5-15%, and lime powder 10-75%, and the balance being water. The resulting liquid is a viscous, gelatinous liquid, which is a new formula. A new environmentally friendly die-casting fireworks inner tube structure is also disclosed, which is made by hot-pressing die-casting. It includes an inner tube body, an effect powder cavity at the top of the inner tube body, a primer powder cavity at the bottom of the inner tube body, a sealing layer between the effect powder cavity and the primer powder cavity, a connecting channel in the middle of the sealing layer, and the connecting channel connecting the effect powder cavity and the primer powder cavity. At present, due to the reasons that it cannot heat the sealing layer in all directions, the liquid flow is poor, and it is difficult to batch feed, most of them are made by single hot-pressing die-casting, which has very low production efficiency and automation degree. Therefore, there is an urgent need for a new fireworks inner tube die-casting machine that can automatically produce and mass-produce the above-mentioned formula. SUMMARY

[0006] The present application aims to overcome the shortcomings of the prior art and at least partially solve the technical problems in the related art, and provides a new full-automatic die casting machine for die casting environmentally friendly fireworks inner tube to solve the problems of existing die casting molds that cannot be mass-produced and cannot be automatically produced.

[0007] In order to solve the above technical problems, the technical scheme of the present application is: a full-automatic die-casting machine for environment-friendly die-casting of an inner cylinder of a firework, comprising a frame, an extrusion device, a die-casting device, a moving device for moving the extrusion device into the die-casting device, and a heating device for supplying heat to the die-casting device, which are arranged on the frame.

[0008] The extrusion device comprises a material tank for placing a material liquid, the bottom of the material tank is uniformly provided with injection nozzles, the material tank is provided with an extrusion plate, the material tank is provided with an extrusion device for driving the extrusion plate to move up and down, the bottom of the material tank is provided with a material liquid for liquid sealing, and the space in the material tank between the material liquid and the extrusion plate is a negative pressure space, so that the material liquid will not drip from the injection nozzles.

[0009] The die-casting device comprises an upper die plate, a lower die plate, a first driving device for driving the upper die plate to reciprocate up and down, the lower die plate is uniformly provided with die cavities, the bottom of each die cavity is provided with a lower die core, and the upper die plate is provided with upper die cores corresponding to the die cavities.

[0010] Further, the moving device comprises two lead screws fixed on the frame through bearings and located on both sides of the material tank, a moving plate fixed on the material tank, and a second driving device for driving the two lead screws to rotate synchronously, the moving plate is threadedly connected with the two lead screws respectively, when the material is added, the first driving device drives the upper die plate to rise, the second driving device drives the material tank to move to be located directly below the lower die plate, and each die cavity is located directly below each injection nozzle.

[0011] Further, the heating device comprises a first heating pipeline, a second heating pipeline and a third heating pipeline.

[0012] The first heating pipeline comprises heat-conducting oil pipelines longitudinally and transversely distributed in the lower die cavities.

[0013] The second heating pipeline comprises a first oil tank fixed on the upper die plate, and a first partition plate sealingly fixed on the first oil tank, the first partition plate divides the first oil tank into an oil inlet area and an oil outlet area, the first partition plate is uniformly provided with oil supply pipes, the inside of each upper die core is provided with an inner cavity, one end of each oil supply pipe extends out of the first partition plate to the oil inlet area, and the other end of each oil supply pipe extends into the inner cavity of the corresponding upper die core, the upper die plate is uniformly provided with threaded sleeves with cavities, each threaded sleeve is threadedly connected with the corresponding upper die core in one-to-one correspondence, each threaded sleeve is sleeved on the outside of the corresponding oil supply pipe in one-to-one correspondence, the threaded sleeve is located in the oil outlet area, and the cavity of the threaded sleeve is in communication with the cavity of the upper die core.

[0014] The third heating pipeline comprises a heating plate slidingly connected with the lower die plate through guide columns, and a third oil tank fixed below the heating plate, the inner cavity of the lower die core is in communication with the third oil tank.

[0015] Furthermore, the extrusion device includes a first positioning plate fixed to the material box by a guide post, a sliding plate slidably connected to the guide post, a screw threadedly connected to the sliding plate, and a reducer that drives the screw to rotate. One end of the screw is connected to the output shaft of the reducer, and the other end is fixed to the first positioning plate by a bearing. The sliding plate passes through the material box and is connected to the extrusion plate by a connecting rod.

[0016] Furthermore, it also includes an ejection device for ejecting the lower mold core. The ejection device includes a second fixed plate fixed by a guide post, a heating plate slidably connected to the guide post, a lower mold core fixed above the heating plate, and a third driving device. The third driving device is fixed on the second fixed plate and is connected to the heating plate assembly through a connecting rod passing through the second fixed plate.

[0017] Furthermore, the upper template is provided with a positioning hole, which is a stepped hole that is smaller at the top and larger at the bottom. The threaded sleeve is threadedly connected to the upper end of the stepped hole, and the upper mold core is threadedly connected to the threaded sleeve and is limited to the lower end of the stepped hole. The upper mold core and the step of the stepped hole are sealed by a copper gasket.

[0018] Furthermore, the frame is provided with platforms on both sides, and the material box is movably connected to the two platforms on both sides.

[0019] Furthermore, the movable plate is provided with first pulleys on both sides. Initially, the two first pulleys on the upper surface of one end of the two platforms respectively abut against the surfaces of the two platforms. A fixing rod is fixed between the other ends of the two platforms, and a second pulley is provided on the fixing rod. The second pulley abuts against the bottom of the material box.

[0020] Furthermore, a third pulley is fixed on the material box, and when moving to add material, the third pulley comes into contact with the surface of the lower template.

[0021] Furthermore, a sealing sleeve is provided around the extrusion plate to seal the extrusion plate with the inner wall of the material box.

[0022] The technical effects of the present application mainly embody in the following aspects: 1: the present application realizes automatic production by moving device to deliver viscous and gelatinous liquid to the top of the lower mold, quantitative extrusion and automatic hot-pressing casting. 2: the liquid in the space A below the material box acts as a liquid seal, and the space between the liquid and the extrusion plate in the material box is a negative pressure space, which ensures that the space A below the material box is always full of liquid, even if it is the last feeding of this material box, it can also ensure that each mold cavity of the lower mold plate can inject liquid quantitatively. If there is no negative pressure space and no liquid seal, the extrusion plate will press into the bottom of the material box, and the liquid will stick to the injection nozzle, the inner wall of the material box and the surface of the extrusion plate, resulting in that the last batch of material cannot be completely injected quantitatively into the mold cavity of the lower mold plate, resulting in a high scrap rate. 3: through the three heating pipelines, the fireworks inner tube is hot-pressed and casted in all directions, especially the second heating pipeline and the third heating pipeline. Through the design, the second heating pipeline uses the cold oil after extrusion heat exchange of the new hot oil to ensure the heating effect. The third heating pipeline uses the cold oil after extrusion heat exchange of the new hot oil, and the cold oil falls into the third oil tank under the action of gravity and is discharged to ensure the heating effect. 4: the third driving device is connected with the heating plate fixed plate through the connecting rod penetrating through the second fixed plate. The heating plate assembly is integrated with the heating fixed plate and the heating plate. Each lower mold core penetrates through the mold fixed plate and is located below each mold cavity of the lower mold plate. Each lower mold core and each mold cavity are sealed by tolerance cooperation. Because there is no great mold pressure in the process of hot-pressing casting, the fluid will not flow randomly. When the hot-pressing casting is completed, the first driving device drives the upper mold plate to rise a small section, the third driving device drives the heating plate to rise, and the fireworks inner tube is topped to be sleeved on the upper mold core by the lower mold core. Then the first driving device drives the upper mold plate to rise to the top, which is convenient for manual removal of the fireworks inner tube. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a perspective view of the present application.

[0024] Figure 2 is a front view of the present application.

[0025] Figure 3 is a structural view of the lower mold assembly.

[0026] Figure 4 is a structural view of the upper mold assembly.

[0027] Figure 5 is a structural view of the moving device.

[0028] Figure 6 is a structural view of the lower mold assembly highlighting the lower mold core.

[0029] Figure 7 is a structural view of the moving device highlighting the fixed rod.

[0030] Figure 8 isFigure 2 A right side view of the device.

[0031] Figure 9 A Figure 8 A cross-sectional view in the A-A direction.

[0032] Figure 10 A Figure 9 An enlarged view of the H portion of the device.

[0033] Figure 11 A Figure 9 An enlarged view of the G portion of the device.

[0034] Figure 12 A Figure 10 An enlarged view of the J portion of the device.

[0035] Figure 13 A Figure 9 An enlarged view of the Q portion of the device. DETAILED DESCRIPTION

[0036] The embodiments of the present application are described in detail below, which are intended to explain the present application, so as to make the technical scheme of the present application more easily understood and mastered, and cannot be understood as a limitation of the present application.

[0037] As Figure 1 , Figure 2 , Figure 8 , Figure 9 shown: a full-automatic die-casting machine for environment-friendly die-casting of an inner cylinder of a firework, comprising a frame 1, wherein the frame 1 is provided with an extrusion device, a die-casting device, a moving device for moving the extrusion device into the die-casting device, and a heating device for supplying heat to the die-casting device.

[0038] The extrusion device comprises a material tank 21 for placing a material liquid, wherein the bottom of the material tank 21 is uniformly provided with injection nozzles 22, the material tank 21 is provided with an extrusion plate 23 in a sealed manner, the material tank 21 is provided with an extrusion device for driving the extrusion plate 23 to move up and down, the bottom of the material tank 21 is provided with a material liquid for liquid sealing, and the space in the material tank 21 between the material liquid and the extrusion plate 23 is a negative pressure space 24, so that the material liquid will not drip from the injection nozzles 22.

[0039] The extrusion plate 23 is provided with a check valve, which is connected to the top of the material tank 21. When adding material, the extrusion plate 23 is at the lowest position, at this time, the extrusion plate 23 has a certain space A with the bottom of the material tank 21. The material liquid in the material tank is pressed into the hose through the check valve to fill the space A. When the space A is filled with air, the material liquid will drip from the injection nozzle 22 (a collecting barrel is connected below the injection nozzle 22). Because the material liquid is a viscous and gelatinous liquid, it will not flow out of the injection nozzle 22 like water. When the space A is filled with material liquid, the extrusion device driving control board rises to the highest point, the material liquid in the space A acts as a liquid seal, and the space between the material liquid and the extrusion plate 23 in the material tank 21 is a negative pressure space 24. When the material liquid fills the entire negative pressure space 24 and is flush with the extrusion plate 23, the moving device moves the material tank 21 between the upper die plate 31 and the lower die plate 32. The extrusion plate 23 is pressed downward to quantitatively inject the material liquid from the injection nozzle 22 into the mold cavity 33 of the lower die plate 32. The amount of quantitative injection is determined by the distance that the extrusion plate 23 is pressed downward. When the extrusion plate 23 is pressed to the lowest position, the above-mentioned material adding process is repeated. Thereafter, the space A is always filled with material liquid, which acts as a liquid seal. Because the space between the material liquid and the extrusion plate 23 in the material tank 21 is a negative pressure space 24, the material liquid in the space A will not drip from the injection nozzle 22.

[0040] The material tank 21 is also provided with an exhaust hole. When the extrusion plate 23 rises, the gas above the extrusion plate 23 is discharged.

[0041] As shown in Figure 3 , Figure 4 , Figure 6 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 The die casting device comprises an upper die plate 31, a lower die plate 32, a first driving device for driving the upper die plate 31 to move up and down reciprocally, the lower die plate 32 is uniformly provided with mold cavities 33, the bottom of each mold cavity 33 is provided with a lower die core 34, and the upper die plate 31 is provided with upper die cores 35 corresponding to the mold cavities 33 one by one.

[0042] As shown in Figure 9 , the first driving device comprises a third fixed plate 37 fixed to the mold fixed plate 36 through guide columns, a gas cylinder or an oil cylinder arranged on the third fixed plate 37, the gas cylinder or the oil cylinder is connected to the upper die fixed plate 38 through a connecting rod penetrating through the third fixed plate 37, the upper die plate 31 and the upper die fixed plate 38 are connected as a whole and are slidably connected with the guide columns, and the gas cylinder or the oil cylinder is used to realize the up and down reciprocating movement of the upper die plate 31.

[0043] As shown in Figure 5 , Figure 7As shown: the rack 1 both sides are provided with platform 11, the material box 21 both sides and two platform 11 movable clamping, moving device includes through bearing fixed on the rack 1 and located at the both sides of the material box 21 two silk rod 41, fixed on the material box 21 moving plate 42, drive two silk rod 41 synchronous rotation of the second drive device, the second drive device is motor, through the belt or chain through two silk rod 41 synchronous rotation, moving plate 42 respectively with two silk rod 41 screw connection, two silk rod 41 synchronous rotation drive moving plate 42 reciprocating motion, in turn drive the material box 21 reciprocating motion fixed with moving plate 42, when feeding, the first drive device drives the upper die plate 31 to rise, the second drive device drives the material box 21 to move to the upper die plate 32 directly above, each mold cavity 33 one to one corresponding to each injection nozzle 22 directly below, in turn realize the injection liquid to the mold cavity 33 of the lower die plate 32, after injection, the second drive device drives the material box 21 reset;

[0044] As shown in Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 The heating device includes a first heating pipeline, a second heating pipeline and a third heating pipeline.

[0045] The first heating pipeline includes heat conducting oil pipes longitudinally and transversely distributed inside the lower mold cavity 33, which is used for heating and solidifying the outer wall of the inner tube of the firework.

[0046] The above heating principle is that the heat conducting oil enters the heat conducting oil pipes from one side of the lower mold cavity 33 and is collected from the other side. Preferably, the longitudinal and transverse heat conducting oil pipes are interconnected.

[0047] The second heating pipeline includes a first oil tank 51 fixed on the upper die plate 31, a first partition plate 52 sealingly fixed in the first oil tank 51, the first partition plate 52 divides the first oil tank 51 into an oil inlet area and an oil outlet area, the first partition plate 52 is uniformly provided with oil supply pipes 53, the inside of the upper die core 35 is provided with an inner cavity, one end of the oil supply pipe 53 extends out of the first partition plate 52 to the oil inlet area, and the other end one to one corresponds to the inner cavity of each upper die core 35, the upper die plate 31 is uniformly provided with threaded sleeves 54 with cavities, each threaded sleeve 54 is one to one connected with the corresponding upper die core 35 through threads, and each threaded sleeve 54 one to one corresponds to the outside of each oil supply pipe 53, the threaded sleeve 54 is located in the oil outlet area, the cavity of the threaded sleeve 54 is communicated with the cavity of the upper die core 35, which is used for heating and solidifying the inner wall of the upper side of the inner tube of the firework and the inner wall of the sealing layer.

[0048] The above heating principle is that the heat conducting oil enters the oil inlet area B, after filling the oil inlet area B, it sequentially flows into the oil supply pipes 53, the inner cavities of the upper die cores 35, the threaded sleeves 54 and the oil outlet area C. Through the above design, the incoming hot oil always pushes out the cold oil, the heating effect is good, the heating and solidification effect is obvious, and the defective rate is low.

[0049] The lower die plate 32 is fixed with the die fixing plate 36, the guide pillar is connected on the die fixing plate 36, the third heating pipeline comprises a heating plate 56 which is slidably connected with the lower die plate 32 through the guide pillar, and a third oil tank 55 which is fixed below the heating plate 56. The lower die core 34 is provided with a cavity, and the third oil tank 55 is communicated with the cavity of the lower die core 34, so as to heat and solidify the inner wall of the lower side of the inner tube of the firework and the outer wall of the sealing layer.

[0050] The heating principle is that the heat-conducting oil fills the third oil tank 55 and the cavity of the lower die core 34. Due to the gravity, the cold oil after heat exchange in the cavity of the lower die core 34 will flow down and be discharged from the third oil tank 55, and the hot oil will continuously fill the cavity of the lower die core 34, so that the heating effect is good, the heating and solidifying effect is obvious, and the defective product rate is low.

[0051] As shown in Figure 5 , Figure 7 The extrusion device comprises a first positioning plate 61 which is fixed on the material box 21 through the guide pillar, a sliding plate 62 which is slidably connected with the guide pillar, a screw rod 63 which is threadedly connected with the sliding plate 62, and a speed reducer 64 which drives the screw rod 63 to rotate. One end of the screw rod 63 is connected with the output shaft of the speed reducer 64, and the other end is fixed on the first positioning plate 61 through a bearing. The sliding plate 62 is connected with the extrusion plate 23 through a connecting rod penetrating into the material box 21.

[0052] The motor drives the output shaft of the speed reducer 64 to rotate, thereby driving the screw rod 63 to rotate in place, and further driving the sliding plate 62 to move up and down, thereby realizing the up-and-down movement of the extrusion plate 23.

[0053] As shown in 9, Figure 11 The extrusion device comprises a first positioning plate 61 which is fixed on the material box 21 through the guide pillar, a sliding plate 62 which is slidably connected with the guide pillar, a screw rod 63 which is threadedly connected with the sliding plate 62, and a speed reducer 64 which drives the screw rod 63 to rotate. One end of the screw rod 63 is connected with the output shaft of the speed reducer 64, and the other end is fixed on the first positioning plate 61 through a bearing. The sliding plate 62 is connected with the extrusion plate 23 through a connecting rod penetrating into the material box 21.

[0054] As shown in Figure 10As shown: the upper mold plate 31 is provided with positioning hole, positioning hole is small on the big step hole, threaded sleeve 54 and step hole upper end thread connection, upper mold core 35 and threaded sleeve 54 through thread connection, and limit in the lower end of step hole, upper mold core 35 and step hole step through copper pad 82 seal, prevent heat conducting oil from the upper mold core 35 and threaded sleeve 54 from the thread place seep out, in from the upper mold core 35 and step connection place seep out, effectively realize sealing.

[0055] As shown in Figure 5 , Figure 7 : the two sides of the moving plate 42 are provided with first pulleys 91, initially, the two first pulleys 91 on the upper surfaces of one end of the two platforms 11 respectively abut against the surfaces of the two platforms 11, and a fixed rod 92 is fixed between the other end portions of the two platforms 11, the fixed rod 92 is provided with a second pulley 93, and the second pulley 93 abuts against the bottom of the material box 21.

[0056] The third pulley 94 is fixed on the material box 21, and when the material is moved, the third pulley 94 abuts against the surface of the lower mold plate 31.

[0057] The first pulley 91, the second pulley 93 and the third pulley 94 serve the purpose of moving the material box 21 stably and also reduce friction.

[0058] As shown in Figure 9 , Figure 13 : the extrusion plate 23 is provided with a rubber sealing sleeve 01 around, so that the four sides of the extrusion plate 23 are sealed with the inner wall of the material box 21, and the up and down movement is isolated from air, ensuring the negative pressure space 24.

[0059] Of course, the above is only a typical example of the present application, in addition to this, the present application can have other various specific embodiments, any technical solution formed by equivalent replacement or equivalent transformation, falls within the scope of the present application claimed.

Claims

1. A full-automatic die-casting machine for environment-friendly die-casting of an inner tube of a firework, comprising a frame, characterized in that: The rack is provided with an extrusion device, a die casting device, a moving device for moving the extrusion device into the die casting device, and a heating device for heating the die casting device; The extrusion device comprises a material tank for placing a material liquid, the bottom of the material tank is uniformly provided with injection nozzles, the material tank is provided with an extrusion plate, the material tank is provided with an extrusion device for driving the extrusion plate to move up and down, the bottom of the material tank is provided with a material liquid for liquid sealing, and the space in the material tank between the material liquid and the extrusion plate is a negative pressure space, so that the material liquid will not drip from the injection nozzles. The die casting device comprises an upper die plate, a lower die plate, a first driving device for driving the upper die plate to reciprocate up and down, the lower die plate is uniformly provided with die cavities, the bottom of the die cavities is provided with a lower die core, and the upper die plate is provided with upper die cores corresponding to the die cavities. The heating device comprises a first heating pipeline, a second heating pipeline and a third heating pipeline. The first heating pipeline comprises heat conduction oil pipelines longitudinally and transversely distributed in the lower die cavities. The second heating pipeline comprises a first oil tank fixed on the upper die plate, a first partition plate sealingly fixed on the first oil tank, the first partition plate divides the first oil tank into an oil inlet area and an oil outlet area, the first partition plate is uniformly provided with oil supply pipes, the inside of the upper die core is provided with an inner cavity, one end of the oil supply pipe extends out of the first partition plate to the oil inlet area, and the other end extends into the inner cavity of each upper die core one by one, the upper die plate is uniformly provided with threaded sleeves with cavities, each threaded sleeve is connected to the corresponding upper die core through threads one by one, and each threaded sleeve is one by one sleeved on the outside of each oil supply pipe, the threaded sleeve is located in the oil outlet area, and the cavity of the threaded sleeve is communicated with the cavity of the upper die core. The third heating pipeline comprises a heating plate slidingly connected to the lower die plate through a guide column and a third oil tank fixed below the heating plate, the inner cavity of the lower die core is communicated with the third oil tank.

2. The full-automatic die-casting machine for environment-friendly die-casting firework inner tube according to claim 1, characterized in that: The moving device comprises two lead screws fixed on the rack through bearings and located on both sides of the material tank, a moving plate fixed on the material tank, and a second driving device for driving the two lead screws to rotate synchronously, the moving plate is threadedly connected to the two lead screws respectively, when the material is added, the first driving device drives the upper die plate to rise, the second driving device drives the material tank to move to be located directly below the lower die plate, and each die cavity is located directly below each injection nozzle one by one.

3. The full-automatic die-casting machine for environment-friendly die-casting firework inner tube according to claim 1, characterized in that: The extrusion device comprises a first positioning plate fixed on the material tank through a guide column, a sliding plate slidingly connected to the guide column, a screw threadedly connected to the sliding plate, a speed reducer for driving the screw to rotate, one end of the screw is connected to the output shaft of the speed reducer, and the other end is fixed on the first positioning plate through a bearing, the sliding plate penetrates into the material tank and is connected to the extrusion plate through a connecting rod.

4. The full-automatic die-casting machine for environment-friendly die-casting firework inner tube according to claim 1, characterized in that: The device further comprises an ejection device for ejecting the lower die core, the ejection device comprises a second fixed plate fixed through a guide column, a heating plate slidingly connected to the guide column, a lower die core fixed on the heating plate, and a third driving device, the third driving device is fixed on the second fixed plate, and the third driving device is connected to the heating plate assembly through a connecting rod penetrating through the second fixed plate.

5. The full-automatic die-casting machine for environment-friendly die-casting firework inner tube according to claim 1, characterized in that: The upper die plate is provided with a positioning hole, the positioning hole is a stepped hole with a small upper end and a large lower end, the threaded sleeve is threadedly connected to the upper end of the stepped hole, the upper die core is connected to the threaded sleeve through threads and is limited to the lower end of the stepped hole, and the upper die core and the step of the stepped hole are sealed by a copper pad.

6. The full-automatic die-casting machine for environment-friendly die-casting firework inner tube according to claim 1, characterized in that: Both sides of the rack are provided with platforms, and both sides of the material tank are movably clamped to the two platforms.

7. The full-automatic die-casting machine for environment-friendly die-casting firework inner tube according to claim 2, characterized in that: Two sides of the moving plate are provided with first pulleys, at the beginning, the two first pulleys on the upper surfaces of one end of the two platforms respectively abut against the surfaces of the two platforms, a fixed rod is fixed between the other end of the two platforms, the fixed rod is provided with a second pulley, and the second pulley abuts against the bottom of the material box.

8. The full-automatic die-casting machine for environment-friendly die-casting firework inner tube according to claim 1, characterized in that: A third pulley is fixed on the material box, and the third pulley abuts against the surface of the lower mold plate when the material is moved.

9. The full-automatic die-casting machine for environment-friendly die-casting firework inner tube according to claim 1, characterized in that: The four sides of the extrusion plate are provided with sealing sleeves, so that the four sides of the extrusion plate are sealed with the inner wall of the material box.

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