Die-casting machine for hydraulic pneumatic machining and using method of die-casting machine

Abstract

The invention relates to the technical field of die-casting machines, in particular to a die-casting machine for hydraulic pneumatic machining and a using method of the die-casting machine. According to the technical scheme, the device comprises a base, a movable mold, a fixed mold, a hydraulic cylinder, a rotating shaft, a toothed plate and a positioning plate, a bearing support is arranged at the upper end of the base, the fixed mold is arranged on one side of the bearing support, the rotating shaft is arranged at one end of the fixed mold, the rotating shaft is sleeved with a torsional spring, the toothed plate is arranged on one side of the movable mold, and a gear is arranged at one end of the rotating shaft. A rack is arranged at the lower end of the toothed plate, a supporting frame is arranged at the upper end of the base, a hydraulic cylinder is arranged in the supporting frame, connecting plates are arranged at the upper end and the lower end of the movable mold, a hydraulic rod is arranged at one end of the hydraulic cylinder, and positioning plates are arranged on the two sides of the upper portion of the base. The movable mold bodies of the two mold grooves and the two fixed mold bodies are combined and installed, power, acting on the movable mold bodies in different directions, of the hydraulic rods driven by the hydraulic cylinders is fully utilized, and the energy utilization rate is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of die-casting machines, and in particular to a die-casting machine for hydraulic and pneumatic machining and a use method thereof. Background Art

[0002] Hydraulics and pneumatics refer to the use of liquid or gas to transmit power and control the movement of mechanical equipment. In the field of mechanical manufacturing, hydraulic and pneumatic systems are widely used in various equipment. The equipment that melts the metal and injects it into the mold and solidifies it by applying a certain pressure through hydraulic gas is the die-casting machine. It is usually used to produce large-scale, high-precision metal parts, which helps to quickly and efficiently produce parts of various specifications and shapes.

[0003] In a die-casting machine, a hydraulic and pneumatic system is usually used to control the injection of metal into a mold and maintain pressure. During die-casting, a movable mold and a fixed mold are included. The hot melt metal is injected into the closed mold cavity of the movable mold and the fixed mold. When the movable mold and the fixed mold are demolded, a hydraulic and pneumatic structure is also required. The use process requires the operation of the equipment, and only the demolding action can be achieved, resulting in insufficient utilization of energy and increased energy consumption. Therefore, those skilled in the art provide a hydraulic and pneumatic machining die-casting machine and a method of using the same to solve the problems raised in the above background technology. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the background technology and to provide a hydraulic and pneumatic machining die-casting machine and a method of using the same.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a die-casting machine for hydraulic and pneumatic machining and a method of using the same, comprising a base, a movable die, a fixed die, a hydraulic cylinder, a rotating shaft, a tooth plate and a positioning plate, the upper end of the base is provided with a symmetrically distributed bearing bracket, one side of the bearing bracket is provided with a fixed die, one end of the fixed die is provided with a rotating shaft that rotates and penetrates the bearing bracket, the outer side of the rotating shaft is sleeved with a torsion spring whose two ends are respectively connected to the fixed die and the bearing bracket, one side of the movable die is provided with a symmetrically distributed tooth plate, one end of the rotating shaft is provided with a gear corresponding to the tooth plate, the lower end of the tooth plate is provided with equidistantly distributed racks, support frames are provided on both sides of the upper end of the base, a hydraulic cylinder is provided inside the support frame, connecting plates are provided at the upper and lower ends of the movable die, one end of the hydraulic cylinder is provided with a hydraulic rod connected to the connecting plate, and positioning plates corresponding to the tooth plate are provided on both sides above the base.

[0006] Preferably, positioning rods are provided at the four corners of both ends of the movable mold, and positioning holes are provided at the four corners of the fixed mold, and the positioning rods are slidably inserted into the positioning holes. After the movable mold and the fixed mold are docked, the positioning rods are inserted into the positioning holes to provide positioning for the die-casting mold docking process.

[0007] Preferably, a side frame is provided at the rear side of the upper end of the base, and one end of the rotating shaft is rotatably mounted inside the side frame. The side frame rotatably supports the rotating shaft at one end of the fixed mold, and the side frame is staggered with the guide plate to avoid affecting the demoulding and transportation of the die-casting structure.

[0008] Preferably, symmetrically distributed fans are provided inside the upper end of the base to deliver airflow to cool the die-casting structural parts.

[0009] Preferably, a guide plate is provided above the base and below the movable die and the fixed die. The guide plate is located above the fan, and through holes are provided in the guide plate at equal intervals. Baffles are provided at both ends of the guide plate. The guide plate receives the fallen die-casting parts, and conveys them through the inclined surface of the guide plate. The through holes ensure the passage of airflow, and the baffles intercept the die-casting structural parts of the guide.

[0010] Preferably, the front end of the movable mold is provided with a side plate, and a spring is provided between the tooth plate and the side plate. The side plate supports the tooth plate, and the elastic force of the spring acts on the tooth plate through the side plate.

[0011] Preferably, a telescopic rod and a telescopic tube are provided inside the spring, one end of the telescopic rod is connected to the side plate, and one end of the telescopic tube is connected to the tooth plate. The telescopic rod is slidably inserted inside the telescopic tube to guide the spring during the telescopic process to prevent the spring from deviating outward.

[0012] Preferably, a sliding sleeve is embedded and installed inside the connecting plate, and a guide column is slidably inserted inside the sliding sleeve. When the movable mold moves, the sliding sleeve slides on the outer wall of the guide column, so that the movable mold is guided when sliding.

[0013] Preferably, a guide rail and a support block are provided at the upper end of the base, a screw hole is provided inside the support block, a screw rod is threadedly installed inside the screw hole, a torsion block is provided at one end of the screw rod, a bearing seat is provided at one end of the positioning plate, one end of the screw rod is rotatably inserted inside the bearing seat, a slide groove is provided at the lower end of the positioning plate, and the slide groove is slidably sleeved with the outer wall of the guide rail. The positioning plate slides on the outer wall of the guide rail through the slide groove, and the rotational force of the screw rod acts on the inside of the bearing seat. By grasping the torsion block, it is convenient to apply rotational force to the screw rod, thereby fine-tuning the position of the positioning plate.

[0014] A method for using a hydraulic and pneumatic mechanical processing die-casting machine, the steps of using the hydraulic and pneumatic mechanical processing die-casting machine are as follows:

[0015] S1: It is worth noting that the movable mold and the fixed mold constitute a die-casting mold. During the use of the die-casting mold, the mold groove needs to be designed according to the product requirements, and a metal suitable for die-casting, such as aluminum alloy, zinc alloy, etc., is selected. The movable mold and the fixed mold are provided with a serpentine cooling groove inside, which is connected to the cooling water, connected by a hose, and melted. The injection pipe is connected to the movable mold, and a flexible and movable pipe is selected to meet the needs of the movable mold movement. The molten metal is injected into the mold through the nozzle of the injection pipe, and then high pressure is applied to fill the entire mold cavity. After the injection is completed, cooling water is injected into the cooling groove to quickly cool the metal to solidify it. After the metal is completely solidified, the mold is opened to take out the die-casting structure. In the process of die-casting mold closing and opening, the hydraulic cylinder is used as the power to drive the hydraulic rod to drive the movable mold to move. After the die-casting structure is demolded, subsequent steps such as deburring, trimming, and surface treatment are required;

[0016] S2: During the docking process between the movable mold and the fixed mold, the side plate is driven to move, and the side plate drives the tooth plate to move. When passing through the gear, the rack pushes the gear, and drives the fixed mold to flip through the transmission of the rotating shaft. When the rack completely passes through the gear, the mold cavity of the fixed mold faces the mold cavity of the movable mold, and the gear is limited by the rack to prevent the gear from rotating. In this process, the torsion spring is twisted and squeezed. When the movable mold continues to move with the fixed mold, the spring is forced to shrink, keeping the tooth plate relatively stable, while ensuring the effective docking of the movable mold and the movable mold;

[0017] S3: When the die-casting mold is opened, the movable mold is away from the fixed mold of the die-casting. First, after the spring loses its extrusion force, it resets through its own elasticity. After the spring is completely reset, the pulling force drives the tooth plate to move, and the rack at the lower end of the tooth plate pushes the gear in the opposite direction, driving the fixed mold to flip through the linkage shaft. At the same time, through the torsional elastic support of the torsion spring, the cavity of the fixed mold faces downward, realizing the automatic dumping and detachment of the die-casting part, avoiding additional material removal from the die-casting mold. The die-casting structural parts are carried by the guide plate for transportation. The mold moves horizontally to open the mold, and the output power of the hydraulic cylinder is utilized.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] After the movable mold and the fixed mold are docked with each other, hot molten metal liquid is injected into the mold cavity formed by closing the movable mold and the fixed mold. Under the action of pressure, die casting is performed. After the hot molten metal liquid is cooled, an injection molded part is formed. After the injection molded part is cooled, the movable mold moves to realize demoulding of the die-casting structural part. Because fixed molds are provided on both sides of the movable mold, the die-casting mold is docked while the movable mold is demoulded, and the die-casting process is performed again. The power of demoulding is reasonably utilized, thereby improving energy utilization and improving die-casting processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a schematic diagram of the main stereoscopic structure of the present invention;

[0021] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the present invention;

[0022] Figure 3 It is a top view of the three-dimensional structure of the movable mold of the present invention;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the movable mold of the present invention from a side view;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the tooth plate of the present invention when viewed from above;

[0025] Figure 6 This is a bottom-up three-dimensional structural schematic diagram of the fixed mold of the present invention;

[0026] Figure 7 It is a schematic diagram of the front three-dimensional structure of the positioning plate of the present invention.

[0027] 1. Base; 2. Moving mold; 3. Fixed mold; 4. Hydraulic cylinder; 5. Hydraulic rod; 6. Gear; 7. Guide plate; 8. Through hole; 9. Fan; 10. Baffle; 11. Support frame; 12. Guide column; 13. Side frame; 14. Bearing bracket; 15. Rotating shaft; 16. Positioning rod; 17. Connecting plate; 18. Sliding sleeve; 19. Telescopic cylinder; 20. Side plate; 21. Tooth plate; 22. Rack; 23. Spring; 24. Screw; 25. Telescopic rod; 26. Torsion spring; 27. Positioning hole; 28. Torsion block; 29. ​​Support block; 30. Guide rail; 31. Slide groove; 32. Bearing seat; 33. Screw hole; 34. Positioning plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0029] See also Figures 1 to 7 , four embodiments provided by the present invention are:

[0030] Embodiment 1:

[0031] A die-casting machine for hydraulic and pneumatic machining, comprising a base 1, a movable die 2, a fixed die 3, a hydraulic cylinder 4, a rotating shaft 15, a tooth plate 21 and a positioning plate 34, wherein the upper end of the base 1 is provided with a symmetrically distributed bearing bracket 14, a fixed die 3 is provided on one side of the bearing bracket 14, a rotating shaft 15 that rotates and penetrates the bearing bracket 14 is provided at one end of the fixed die 3, a torsion spring 26 that is respectively connected to the fixed die 3 and the bearing bracket 14 at both ends is sleeved on the outer side of the rotating shaft 15, a symmetrically distributed tooth plate 21 is provided on one side of the movable die 2, a gear 6 corresponding to the tooth plate 21 is provided at one end of the rotating shaft 15, and a rack 22 distributed equidistantly is provided at the lower end of the tooth plate 21, support frames 11 are provided on both sides of the upper end of the base 1, a hydraulic cylinder 4 is provided inside the support frame 11, a connecting plate 17 is provided on both upper and lower ends of the movable die 2, a hydraulic rod 5 connected to the connecting plate 17 is provided at one end of the hydraulic cylinder 4, and positioning plates 34 corresponding to the tooth plate 21 are provided on both sides above the base 1;

[0032] Positioning rods 16 are provided at the four corners of both ends of the movable mold 2, and positioning holes 27 are provided at the four corners of the fixed mold 3. The positioning rods 16 are slidably inserted into the positioning holes 27;

[0033] A side plate 20 is provided at the front end of the movable mold 2, and a spring 23 is provided between the tooth plate 21 and the side plate 20;

[0034] The spring 23 is provided with a slidably plugged telescopic rod 25 and a telescopic cylinder 19, one end of the telescopic rod 25 is connected to the side plate 20, and one end of the telescopic cylinder 19 is connected to the toothed plate 21;

[0035] The hot molten metal liquid passes through the two groups of die grooves of the movable mold 2 through two groups of pipes. During the docking process of the movable mold 2 and the fixed mold 3, the hydraulic cylinder 4 drives the hydraulic rod 5 to move, and the movable mold 2 slides on the outer wall of the guide column 12 through the sliding sleeve 18, and the movable mold 2 is guided by the sliding guide. During the docking process of the movable mold 2 and the fixed mold 3, the positioning rod 16 is inserted into the positioning hole 27, and when the movable mold 2 moves, the tooth plate 21 is driven to move through the side plate 20. When the tooth plate 21 passes through the gear 6 supported by the rotation of the rotating shaft 15, it pushes the gear 6, drives the rotating shaft 15 to rotate, and then drives the fixed mold 3 to rotate. After the die groove of the fixed mold 3 corresponds to the die groove of the movable mold 2, the tooth plate 21 passes through the gear 6 and is located on one side of the gear 6. The gear 6 elastically supported by the torsion spring 26 is limited by the end of the tooth plate 21 to prevent the gear 6 from rotating. At this time, one end of the tooth plate 21 is aligned with the fixed mold 3. The positioning plate 34 fits together, and the extrusion force acts on the spring 23. The spring 23 contracts under the force, and the telescopic rod 25 is inserted into the inside of the conveying cylinder. After the movable mold 2 is docked with the fixed mold 3, the molten metal is transported to the inside of the closed die-casting mold cavity through the pipeline. After the molten metal is cooled and solidified, the hydraulic cylinder 4 drives the telescopic rod 25 to move in the opposite direction, driving the movable mold 2 to move. The movable mold 2 docks with another fixed mold 3, and the tooth plate 21 moves with the movable mold 2. When the tooth plate 21 falls off the gear 6, the rotating shaft 15 is reset by the elasticity of the torsion spring 26, and the mold cavity is facing, so that the die-casting inside the mold cavity is demolded. During the demolding process, the die-casting mold for the next die-casting process is directly closed, and energy is fully utilized to improve the die-casting efficiency. Similarly, energy is used to improve the die-casting processing of die-casting structural parts, thereby reducing energy consumption in large-scale die-casting processing and manufacturing.

[0036] Embodiment 2:

[0037] It includes a base 1, a movable mold 2, a fixed mold 3, a hydraulic cylinder 4, a rotating shaft 15, a tooth plate 21 and a positioning plate 34. The upper end of the base 1 is provided with a symmetrically distributed bearing bracket 14, and a fixed mold 3 is provided on one side of the bearing bracket 14. A rotating shaft 15 that rotates and penetrates the bearing bracket 14 is provided at one end of the fixed mold 3. A torsion spring 26 connected to the fixed mold 3 and the bearing bracket 14 at both ends is sleeved on the outer side of the rotating shaft 15. A symmetrically distributed tooth plate 21 is provided on one side of the movable mold 2, a gear 6 corresponding to the tooth plate 21 is provided at one end of the rotating shaft 15, and an equidistantly distributed rack 22 is provided at the lower end of the tooth plate 21. Support frames 11 are provided on both sides of the upper end of the base 1, and a hydraulic cylinder 4 is provided inside the support frame 11. Connecting plates 17 are provided on the upper and lower ends of the movable mold 2, and a hydraulic rod 5 connected to the connecting plate 17 is provided at one end of the hydraulic cylinder 4. Positioning plates 34 corresponding to the tooth plate 21 are provided on both sides above the base 1.

[0038] Positioning rods 16 are provided at the four corners of both ends of the movable mold 2, and positioning holes 27 are provided at the four corners of the fixed mold 3. The positioning rods 16 are slidably inserted into the positioning holes 27;

[0039] A side plate 20 is provided at the front end of the movable mold 2, and a spring 23 is provided between the tooth plate 21 and the side plate 20;

[0040] The spring 23 is provided with a slidably plugged telescopic rod 25 and a telescopic cylinder 19, one end of the telescopic rod 25 is connected to the side plate 20, and one end of the telescopic cylinder 19 is connected to the toothed plate 21;

[0041] The hot molten metal liquid passes through the two groups of die grooves of the movable mold 2 through two groups of pipes. During the docking process of the movable mold 2 and the fixed mold 3, the hydraulic cylinder 4 drives the hydraulic rod 5 to move, and the movable mold 2 slides on the outer wall of the guide column 12 through the sliding sleeve 18, and the movable mold 2 is guided by the sliding guide. During the docking process of the movable mold 2 and the fixed mold 3, the positioning rod 16 is inserted into the positioning hole 27, and when the movable mold 2 moves, the tooth plate 21 is driven to move through the side plate 20. When the tooth plate 21 passes through the gear 6 supported by the rotation of the rotating shaft 15, it pushes the gear 6, drives the rotating shaft 15 to rotate, and then drives the fixed mold 3 to rotate. After the die groove of the fixed mold 3 corresponds to the die groove of the movable mold 2, the tooth plate 21 passes through the gear 6 and is located on one side of the gear 6. The gear 6 elastically supported by the torsion spring 26 is limited by the end of the tooth plate 21 to prevent the gear 6 from rotating. At this time, one end of the tooth plate 21 is aligned with the fixed mold 3. The positioning plate 34 fits, and the extrusion force acts on the spring 23. The spring 23 is forced to shrink, and the telescopic rod 25 is inserted into the inside of the conveying cylinder. After the movable mold 2 is docked with the fixed mold 3, the molten metal is transported to the inside of the closed die-casting mold cavity through the pipeline. After the molten metal is cooled and solidified, the hydraulic cylinder 4 drives the telescopic rod 25 to move in the opposite direction, driving the movable mold 2 to move. The movable mold 2 docks with another fixed mold 3, and the tooth plate 21 moves with the movable mold 2. When the tooth plate 21 falls off the gear 6, the rotating shaft 15 is reset by the elasticity of the torsion spring 26, and the mold cavity is facing, so that the die-casting inside the mold cavity is demolded. During the demolding process, the die-casting mold for the next die-casting process is directly closed, and energy is fully utilized to improve the die-casting efficiency. Similarly, energy is used to improve the die-casting processing of die-casting structural parts, thereby reducing energy consumption in large-scale die-casting processing and manufacturing;

[0042] A side frame 13 is provided at the rear side of the upper end of the base 1, and one end of the rotating shaft 15 is rotatably mounted inside the side frame 13;

[0043] A symmetrically distributed fan 9 is provided inside the upper end of the base 1;

[0044] A guide plate 7 is arranged above the base 1 and is located below the movable mold 2 and the fixed mold 3. The guide plate 7 is located above the fan 9. Through holes 8 are arranged in equal intervals inside the guide plate 7. Baffles 10 are arranged at both ends of the guide plate 7.

[0045] A sliding sleeve 18 is embedded and installed inside the connecting plate 17, and a guide column 12 is slidably inserted inside the sliding sleeve 18;

[0046] After the die-casting is demolded, it is received by the guide plate 7, and the airflow is conveyed to the die-casting mold during the operation of the fan 9 to cool the die-casting mold. After demolding, the airflow acts on the die-casting structure to cool the die-casting structure and accelerate the cooling of the die-casting structure. At the same time, the guide plate 7 guides and conveys the die-casting structure, and the baffle 10 intercepts it to prevent the die-casting structure from falling to the outside.

[0047] Embodiment three:

[0048] It includes a base 1, a movable mold 2, a fixed mold 3, a hydraulic cylinder 4, a rotating shaft 15, a tooth plate 21 and a positioning plate 34. The upper end of the base 1 is provided with a symmetrically distributed bearing bracket 14, and a fixed mold 3 is provided on one side of the bearing bracket 14. A rotating shaft 15 that rotates and penetrates the bearing bracket 14 is provided at one end of the fixed mold 3. A torsion spring 26 connected to the fixed mold 3 and the bearing bracket 14 at both ends is sleeved on the outer side of the rotating shaft 15. A symmetrically distributed tooth plate 21 is provided on one side of the movable mold 2, a gear 6 corresponding to the tooth plate 21 is provided at one end of the rotating shaft 15, and an equidistantly distributed rack 22 is provided at the lower end of the tooth plate 21. Support frames 11 are provided on both sides of the upper end of the base 1, and a hydraulic cylinder 4 is provided inside the support frame 11. Connecting plates 17 are provided on the upper and lower ends of the movable mold 2, and a hydraulic rod 5 connected to the connecting plate 17 is provided at one end of the hydraulic cylinder 4. Positioning plates 34 corresponding to the tooth plate 21 are provided on both sides above the base 1.

[0049] Positioning rods 16 are provided at the four corners of both ends of the movable mold 2, and positioning holes 27 are provided at the four corners of the fixed mold 3. The positioning rods 16 are slidably inserted into the positioning holes 27;

[0050] A side plate 20 is provided at the front end of the movable mold 2, and a spring 23 is provided between the tooth plate 21 and the side plate 20;

[0051] The spring 23 is provided with a slidably plugged telescopic rod 25 and a telescopic cylinder 19, one end of the telescopic rod 25 is connected to the side plate 20, and one end of the telescopic cylinder 19 is connected to the toothed plate 21;

[0052] The hot molten metal liquid passes through the two groups of die grooves of the movable mold 2 through two groups of pipes. During the docking process of the movable mold 2 and the fixed mold 3, the hydraulic cylinder 4 drives the hydraulic rod 5 to move, and the movable mold 2 slides on the outer wall of the guide column 12 through the sliding sleeve 18, and the movable mold 2 is guided by the sliding guide. During the docking process of the movable mold 2 and the fixed mold 3, the positioning rod 16 is inserted into the positioning hole 27, and when the movable mold 2 moves, the tooth plate 21 is driven to move through the side plate 20. When the tooth plate 21 passes through the gear 6 supported by the rotation of the rotating shaft 15, it pushes the gear 6, drives the rotating shaft 15 to rotate, and then drives the fixed mold 3 to rotate. After the die groove of the fixed mold 3 corresponds to the die groove of the movable mold 2, the tooth plate 21 passes through the gear 6 and is located on one side of the gear 6. The gear 6 elastically supported by the torsion spring 26 is limited by the end of the tooth plate 21 to prevent the gear 6 from rotating. At this time, one end of the tooth plate 21 is aligned with the fixed mold 3. The positioning plate 34 fits, and the extrusion force acts on the spring 23. The spring 23 is forced to shrink, and the telescopic rod 25 is inserted into the inside of the conveying cylinder. After the movable mold 2 is docked with the fixed mold 3, the molten metal is transported to the inside of the closed die-casting mold cavity through the pipeline. After the molten metal is cooled and solidified, the hydraulic cylinder 4 drives the telescopic rod 25 to move in the opposite direction, driving the movable mold 2 to move. The movable mold 2 docks with another fixed mold 3, and the tooth plate 21 moves with the movable mold 2. When the tooth plate 21 falls off the gear 6, the rotating shaft 15 is reset by the elasticity of the torsion spring 26, and the mold cavity is facing, so that the die-casting inside the mold cavity is demolded. During the demolding process, the die-casting mold for the next die-casting process is directly closed, and energy is fully utilized to improve the die-casting efficiency. Similarly, energy is used to improve the die-casting processing of die-casting structural parts, thereby reducing energy consumption in large-scale die-casting processing and manufacturing;

[0053] A side frame 13 is provided at the rear side of the upper end of the base 1, and one end of the rotating shaft 15 is rotatably mounted inside the side frame 13;

[0054] A symmetrically distributed fan 9 is provided inside the upper end of the base 1;

[0055] A guide plate 7 is arranged above the base 1 and is located below the movable mold 2 and the fixed mold 3. The guide plate 7 is located above the fan 9. Through holes 8 are arranged in equal intervals inside the guide plate 7. Baffles 10 are arranged at both ends of the guide plate 7.

[0056] A sliding sleeve 18 is embedded and installed inside the connecting plate 17, and a guide column 12 is slidably inserted inside the sliding sleeve 18;

[0057] After the die-casting is demolded, it is received by the guide plate 7, and the airflow is conveyed to the die-casting mold during the operation of the fan 9 to cool the die-casting mold. After demolding, the airflow acts on the die-casting structure to cool the die-casting structure and accelerate the cooling of the die-casting structure. At the same time, the guide plate 7 guides and conveys the die-casting structure, and the baffle 10 intercepts it to prevent the die-casting structure from falling to the outside.

[0058] A guide rail 30 and a support block 29 are arranged at the upper end of the base 1. A screw hole 33 is provided inside the support block 29. A screw rod 24 is threadedly installed inside the screw hole 33. A torsion block 28 is provided at one end of the screw rod 24. A bearing seat 32 is provided at one end of the positioning plate 34. One end of the screw rod 24 is rotatably inserted into the bearing seat 32. A slide groove 31 is provided at the lower end of the positioning plate 34. The slide groove 31 is slidably sleeved with the outer wall of the guide rail 30.

[0059] In actual use, the automatic demoulding structure is difficult to meet the needs of installation and positioning. At this time, the gripping torsion block 28 drives the screw 24 to rotate, and the screw 24 rotates inside the bearing seat 32. Because the positioning plate 34 slides on the outer wall of the guide rail 30 through the slide groove 31 to obtain a sliding guide, the screw 24 pushes and pulls the positioning plate 34 to move, and the position of the positioning plate 34 is fine-tuned, so that the tooth plate 21 is completely separated from the gear ring at an appropriate distance and fits with the positioning plate 34, ensuring the effective docking stroke between the movable mold 2 and the fixed mold 3, so that the flexibility of the demoulding structure during use is improved, which is convenient for fine-tuning after installation and adapting to possible problems of mismatched spacing between structural parts.

[0060] Embodiment 4:

[0061] A method for using a hydraulic and pneumatic mechanical processing die-casting machine, the steps of using the hydraulic and pneumatic mechanical processing die-casting machine are as follows:

[0062] S1: It is worth noting that the movable mold 2 and the fixed mold 3 constitute a die-casting mold. During the use of the die-casting mold, the mold groove needs to be designed according to the product requirements, and a metal suitable for die-casting, such as aluminum alloy, zinc alloy, etc., is selected. The movable mold 2 and the fixed mold 3 are provided with a serpentine cooling groove inside, which is connected to the cooling water, connected by a hose, and melted. The injection pipe is connected to the movable mold 2, and a flexible and movable pipe is selected to meet the needs of the movable mold 2 to move. The molten metal is injected into the mold through the nozzle of the injection pipe, and then high pressure is applied to fill the entire mold cavity. After the injection is completed, cooling water is injected into the cooling groove to quickly cool the metal to solidify it. After the metal is completely solidified, the mold is opened to take out the die-casting structure. In the process of die-casting closed mold box opening, the hydraulic cylinder 4 is used as the power to drive the hydraulic rod 5 to drive the movable mold 2 to move. After the die-casting structure is demolded, subsequent steps such as deburring, trimming, and surface treatment are required;

[0063] S2: During the docking process between the movable mold 2 and the fixed mold 3, the side plate 20 is driven to move, and the side plate 20 drives the tooth plate 21 to move. When passing through the gear 6, the rack 22 pushes the gear 6, and drives the fixed mold 3 to flip through the transmission of the rotating shaft 15. When the rack 22 completely passes through the gear 6, the mold cavity of the fixed mold 3 is opposite to the mold cavity of the movable mold 2, and the gear 6 is limited by the rack 22 to prevent the gear 6 from rotating. In this process, the torsion spring 26 is twisted and squeezed. When the movable mold 2 continues to move with the fixed mold 3, the spring 23 is forced to shrink, so as to keep the tooth plate 21 relatively stable, and at the same time ensure the effective docking of the movable mold 2 with the movable mold 2;

[0064] S3: When the die-casting mold is opened, the movable mold 2 is away from the fixed mold 3 of the die-casting. First, after the spring 23 loses the extrusion force, it is reset by its own elasticity. After the spring 23 is completely reset, the pulling force drives the tooth plate 21 to move, and the rack 22 at the lower end of the tooth plate 21 pushes the gear 6 in the opposite direction, and drives the fixed mold 3 to flip through the linkage shaft 15. At the same time, through the torsional elastic support of the torsion spring 26, the mold cavity of the fixed mold 3 faces downward, realizing the automatic dumping and detachment of the die-casting, avoiding the additional material removal action from the die-casting mold, and the die-casting structural parts are carried by the guide plate 7 for transportation. The mold moves horizontally to open the mold, and the output power of the hydraulic cylinder 4 is utilized.

[0065] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

[0066] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A die-casting machine for hydraulic and pneumatic machining, comprising a base (1), a movable die (2), a fixed die (3), a hydraulic cylinder (4), a rotating shaft (15), a tooth plate (21) and a positioning plate (34), characterized in that: The upper end of the base (1) is provided with symmetrically distributed bearing brackets (14), one side of the bearing bracket (14) is provided with a fixed mold (3), one end of the fixed mold (3) is provided with a rotating shaft (15) that rotates and penetrates the bearing bracket (14), the outer side of the rotating shaft (15) is sleeved with a torsion spring (26) whose two ends are respectively connected to the fixed mold (3) and the bearing bracket (14), and one side of the movable mold (2) is provided with symmetrically distributed toothed plates (21), one end of the rotating shaft (15) is provided with a toothed plate (21) that is connected to the toothed plate (21). 1) corresponding gear (6), the lower end of the toothed plate (21) is provided with equidistantly distributed racks (22), the upper sides of the base (1) are provided with support frames (11), a hydraulic cylinder (4) is arranged inside the support frame (11), the upper and lower ends of the movable mold (2) are provided with connecting plates (17), one end of the hydraulic cylinder (4) is provided with a hydraulic rod (5) connected to the connecting plate (17), and positioning plates (34) corresponding to the toothed plate (21) are arranged on both sides above the base (1).

2. A hydraulic and pneumatic machining die-casting machine according to claim 1, characterized in that: Positioning rods (16) are provided at the four corners of both ends of the movable mold (2), and positioning holes (27) are opened at the four corners of the fixed mold (3), and the positioning rods (16) are slidably inserted into the positioning holes (27).

3. The die-casting machine for hydraulic and pneumatic machining according to claim 1, characterized in that: A side frame (13) is arranged at the rear side of the upper end of the base (1), and one end of the rotating shaft (15) is rotatably mounted inside the side frame (13).

4. The die-casting machine for hydraulic and pneumatic machining according to claim 1, characterized in that: Symmetrically distributed fans (9) are arranged inside the upper end of the base (1).

5. The die-casting machine for hydraulic and pneumatic machining according to claim 4, characterized in that: A guide plate (7) is arranged above the base (1) and is located below the movable mold (2) and the fixed mold (3). The guide plate (7) is located above the fan (9). Through holes (8) are arranged in an equidistant manner inside the guide plate (7). Baffles (10) are arranged at both ends of the guide plate (7).

6. The die-casting machine for hydraulic and pneumatic machining according to claim 1, characterized in that: A side plate (20) is arranged at the front end of the movable mold (2), and a spring (23) is arranged between the tooth plate (21) and the side plate (20).

7. A hydraulic and pneumatic machining die-casting machine according to claim 6, characterized in that: A telescopic rod (25) and a telescopic cylinder (19) are provided inside the spring (23) and are slidably connected. One end of the telescopic rod (25) is connected to the side plate (20), and one end of the telescopic cylinder (19) is connected to the toothed plate (21).

8. The die-casting machine for hydraulic and pneumatic machining according to claim 1, characterized in that: A sliding sleeve (18) is embedded and installed inside the connecting plate (17), and a guide column (12) is slidably inserted inside the sliding sleeve (18).

9. The die-casting machine for hydraulic and pneumatic machining according to claim 1, characterized in that: A guide rail (30) and a support block (29) are arranged at the upper end of the base (1); a screw hole (33) is arranged inside the support block (29); a screw rod (24) is threadedly installed inside the screw hole (33); a torsion block (28) is arranged at one end of the screw rod (24); a bearing seat (32) is arranged at one end of the positioning plate (34); one end of the screw rod (24) is rotatably inserted into the bearing seat (32); a slide groove (31) is arranged at the lower end of the positioning plate (34); and the slide groove (31) is slidably sleeved with the outer wall of the guide rail (30).

10. A method for using a hydraulic and pneumatic mechanical processing die-casting machine, characterized in that: The steps for using the die-casting machine for hydraulic and pneumatic machining are as follows: S1: It is worth noting that the movable mold (2) and the fixed mold (3) constitute a die-casting mold. During the use of the die-casting mold, the mold groove needs to be designed according to the product requirements, and a metal suitable for die-casting, such as aluminum alloy, zinc alloy, etc., is selected. The movable mold (2) and the fixed mold (3) are provided with a serpentine cooling groove inside, which is connected to cooling water and connected by a hose and melted. The injection pipe is connected to the movable mold (2), and a flexible and movable pipe is selected to meet the needs of the movable mold (2) to move. The molten metal is injected into the mold through the nozzle of the injection pipe, and then high pressure is applied to fill the entire mold cavity. After the injection is completed, cooling water is injected into the cooling groove to quickly cool the metal to solidify it. After the metal is completely solidified, the mold is opened to take out the die-casting structural part. During the die-casting closed mold box opening process, the hydraulic cylinder (4) is used as the power to drive the hydraulic rod (5) to drive the movable mold (2) to move. After the die-casting structural part is demolded, subsequent steps such as deburring, trimming, and surface treatment are required; S2: During the docking process between the movable mold (2) and the fixed mold (3), the side plate (20) is driven to move, and the side plate (20) drives the tooth plate (21) to move. When passing through the gear (6), the rack (22) pushes the gear (6), and through the transmission of the rotating shaft (15), the fixed mold (3) is driven to flip. When the rack (22) completely passes through the gear (6), the mold cavity of the fixed mold (3) is opposite to the mold cavity of the movable mold (2), and the gear (6) is limited by the rack (22) to prevent the gear (6) from rotating. In this process, the torsion spring (26) is twisted and squeezed. When the movable mold (2) continues to move around the fixed mold (3), the spring (23) is forced to shrink, so as to keep the tooth plate (21) relatively stable, and at the same time ensure the effective docking of the movable mold (2) with the movable mold (2); S3: When the die-casting mold is opened, the movable mold (2) is away from the fixed die (3) of the die-casting. First, after the spring (23) loses its extrusion force, it is reset by its own elasticity. After the spring (23) is completely reset, the pulling force drives the tooth plate (21) to move. The rack (22) at the lower end of the tooth plate (21) pushes the gear (6) in the opposite direction, and drives the fixed mold (3) to flip through the linkage shaft (15). At the same time, through the torsional elastic support of the torsion spring (26), the mold cavity of the fixed mold (3) faces downward, realizing automatic dumping and detachment of the die-casting part, avoiding additional material removal from the die-casting mold. The die-casting structural parts are received by the guide plate (7) for transportation. During the mold opening process, the output power of the hydraulic cylinder (4) is utilized.

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