Self-adaptive spraying plate for release agent in die cavity of die-casting machine

Abstract

The invention discloses a self-adaptive spraying plate for a release agent in a die cavity of a die-casting machine, and relates to the technical field of die-casting machine equipment.The self-adaptive spraying plate comprises a base, a die-casting machine is mounted on the upper surface of the base, a support is mounted on the side face of the base, an upper shell is mounted at the end of the support, and an electric telescopic part is fixedly mounted on the lower surface of the upper shell through a mounting part; a spraying assembly is arranged at the end of the electric telescopic piece, and two shielding assemblies are arranged below the upper shell. According to the device, the moving mechanism is driven by the rotating mechanism, so that the shielding assembly moves towards the mold cavity to cover the spraying area so as to block random splashing of a release agent, the device can adapt to various mold opening distances, automatic sensing and self-adaptive shielding are achieved through relative movement of components, excessive manual operation is not needed, practicability and adaptability are high, and the device is suitable for large-scale popularization and application. And the shielding assembly can deflect in the opposite direction, so that the mold release agent retained on the inner side is conveniently discharged, the maintenance cost is reduced, and automation and intelligence are excellent.

Description

Technical Field

[0001] The invention relates to the technical field of die-casting machine equipment, in particular to a die-casting machine mold cavity self-adaptive release agent spray plate. Background Art

[0002] When casting non-ferrous metals in the fields of aerospace, automobiles, and high-speed rail, die-casting machines are often used for metal casting. The die-casting machine presses the molten metal into the mold cavity under high pressure during casting, thereby realizing the die-casting of metal parts. During the production process of die-casting parts, a release agent is required to prevent adhesion between the die-casting parts and the mold. The release agent is sprayed into the mold cavity, forming a thin film-like isolation layer in the mold cavity, thereby facilitating the normal blanking of the mold after die-casting.

[0003] However, most of the existing die-casting machine mold cavity release agent spray devices are open spray operations. When the release agent is sprayed onto the mold cavity, part of the release agent adheres to the mold cavity, and part of the release agent, after contacting the mold cavity, has a certain injection pressure when spraying, and then the release agent will be rebounded by the mold cavity and splashed and scattered into the surrounding air. In addition, the release agent contains a large amount of chemicals, such as organic solvents, ethanol, acetone and other substances. These substances are scattered in the die-casting work area. After long-term contact or inhalation of these harmful substances, the die-casting workers may cause certain damage to the respiratory system and skin. At the same time, the scattered release agent may also cause corrosion and damage to the metal equipment at the spraying operation site, which may affect the service life. Summary of the Invention

[0004] The purpose of the present invention is to provide a self-adaptive spray plate for release agent in the die cavity of a die-casting machine, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adaptive spray plate for a release agent in a die-casting machine cavity, comprising: a base, a die-casting machine being mounted on the upper surface of the base, a bracket being mounted on the side of the base, an upper shell being mounted on the end of the bracket, an electric telescopic member being fixedly mounted on the lower surface of the upper shell via a mounting member, a spray assembly being provided at the end of the electric telescopic member, two groups of shielding assemblies being provided below the upper shell, each group of shielding assemblies being combined to form a rectangular frame structure;

[0006] The die casting machine includes two die cavities;

[0007] The adaptive spray plate further includes a rotating mechanism, a moving mechanism and a transmission mechanism arranged below the upper shell;

[0008] The rotation mechanism drives the movement mechanism to move, so that the shielding component moves toward the mold cavity to block the release agent scattered during the spraying process of the spraying component, and is suitable for various mold opening distances to perform adaptive spray shielding;

[0009] Through the operation of the moving mechanism and in cooperation with the transmission mechanism, the shielding components can be separated from each other and relatively deflected to discharge the release agent in the shielding components.

[0010] Optionally, the spray assembly includes:

[0011] A spray output portion, wherein seven nozzles and seven air blowing nozzles are provided on both sides of the spray output portion;

[0012] The interior of the spray output part is provided with water holes, water holes, mist holes and compressed air holes. The release agent is sprayed on the mold cavity through the water holes, water holes, mist holes and compressed air holes and via the nozzle and the spraying operation. The upper end of the spray output part is provided with a spray body, and the upper surface of the spray body is fixedly connected to the end of the electric telescopic part.

[0013] Optionally, the shielding component includes:

[0014] Two semi-shielding shells, each of which is a semi-rectangular frame structure, are arranged opposite to each other to form a rectangular frame structure, and are located outside the spray output portion;

[0015] Two inner shielding shells, the inner shielding shells are slidably connected to the inner wall of the semi-shielding shell, the inner shielding shell is provided with a slideway on the side facing the mold cavity, the groove wall of the slideway is slidably connected to a pressure shell, the pressure shell and the opposite side of the slideway are fixedly connected with a spring 1, so that a relative elastic sliding form is formed between the pressure shell and the inner shielding shell, and a sealing strip is provided on the side of the pressure shell facing the mold cavity.

[0016] Optionally, the rotating mechanism includes a threaded component and an induction component;

[0017] The threaded component comprises:

[0018] A dual-axis motor, wherein the housing of the dual-axis motor is fixedly connected to the inner side of the mounting member, the two output shafts of the dual-axis motor are fixedly connected to a screw rod 1, the threaded portion of the screw rod 1 is threadedly connected to a threaded sleeve, the side of the threaded sleeve is connected to a sleeve shell for fixed axis rotation, the upper surface of the sleeve shell is slidably connected to a slide rod, and the end of the slide rod is fixedly connected to the inner wall of the upper shell;

[0019] There are two groups of connecting rods, each group has two connecting rods, and each group of connecting rods is fixedly connected to two sides of the shell.

[0020] Optionally, the sensing component includes:

[0021] Two L-shaped members, one end of each L-shaped member is fixedly connected to the upper surface of the pressure shell, a container 1 is fixedly installed on the upper surface of the two semi-shielding shells facing the two mold cavities, a sliding opening is opened on the side of the container 1 for the other end of the L-shaped member to extend into and slidably connect with the other end, the other end of the L-shaped member is fixedly connected to a push plate 1, and a joint 1 is fixedly connected to the upper surface of the container 1;

[0022] Two containers, the second container is fixedly mounted on the inner wall of the housing, a push plate second is slidably connected to the inner wall of the second container, a moving rod is fixedly connected to the upper surface of the push plate second, and a joint second is fixedly connected to the lower surface of the second container, and the joint first and the joint second are connected by a hose;

[0023] Two clamping blocks, a socket for inserting the clamping block is opened on the side of the threaded sleeve, a sliding groove is opened on the side of the clamping block, an insertion rod is fixedly connected to the inner wall of the sliding groove, an opening 1 is opened at the end of the moving rod for inserting the insertion rod and slidingly connected thereto, a spring 2 is fixedly connected to the opposite side of the clamping block and the sliding groove wall, and a spring 3 is fixedly connected to the opposite side of the moving rod and the second container;

[0024] Two electromagnets, a placement groove is opened inside the threaded sleeve, the electromagnet is installed in the placement groove, and a metal block is fixedly connected to the side of the clamping block facing the output end of the electromagnet.

[0025] Optionally, the moving mechanism includes:

[0026] The cam is fixedly connected to the upper end of the cam and is fixedly connected to the lower end of the cam.

[0027] Optionally, the transmission mechanism includes:

[0028] Four gears, the inner sides of the gears are fixedly connected to the upper end of the kit, four rack rows are fixedly connected to the inner wall of the upper shell, a thread groove is opened at the lower end of the spline shaft, a movable plate is threadedly connected to the groove wall of the thread groove, and a telescopic rod is fixedly connected to the upper end of the movable plate, and the end of the telescopic rod is fixedly connected to the said;

[0029] Four hinged plates, one end of the hinged plate is hinged to the lower surface of the movable plate, the other end of the hinged plate is hinged to a connecting block, and a groove body 2 for sliding the connecting block is opened on the upper surface of the semi-shielding shell.

[0030] Optionally, four gravity sensors are installed on the upper surface of the spray output part. Through the contraction of the telescopic part of the electric telescopic part, the sensing part of the gravity sensor is brought into contact with the inner side of the semi-shielding shell, thereby sensing the gravity change of the shielding component to determine the amount of release agent attached to the shielding component.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The present invention drives the moving mechanism to operate by rotating the mechanism, so that the shielding component moves toward the mold cavity to block the release agent scattered during the spraying process of the spray component. It is suitable for various mold opening distances and performs adaptive spray shielding. This method has the following effects:

[0033] S1. The rotating mechanism of this method cooperates with the moving mechanism to enable the movement of the shielding component to adapt to various mold opening distances, thereby enabling the shielding component to move and fully contact and cover the spray area of the mold cavity, preventing the release agent from splashing and polluting the air and endangering health, thereby significantly reducing the release agent's flying pollution;

[0034] S2. This method uses the relative movement between the structure formed by the contact between the movable shielding component and the mold cavity, and cooperates with the form of hydraulic oil pressure power transmission. The shielding component can be adaptively extended to block according to various mold opening distances. It has the effect of automatically sensing, adapting and timely cutting off the power according to the mold opening distance. It is suitable for the spray operation of the mold cavity of the die casting machine;

[0035] S3. This method does not require too much manual manipulation, avoids insufficient or excessive movement of the shielding component, and within a certain range, the shielding component can automatically cut off the power transmission of the rotating mechanism after the extrusion contact with the mold cavity is stable. It has good adaptability and intelligence. When the die-casting process changes or the die-casting parts are replaced, there is no need to adjust the operating parameters of the extension distance of the shielding component, which has better practicality and adaptability.

[0036] 2. The present invention drives the moving mechanism to operate through a rotating mechanism, so that the shielding components can be separated from each other and deflected in a relative synchronous reverse direction to conveniently discharge the release agent in the shielding components. The transmission mechanism cooperates with the moving and transmission mechanisms and utilizes the L-shaped movement characteristics to adaptively block the mold opening distance in all directions during the long L-shaped movement to prevent spray splashing. During the short L-shaped movement, the shielding components on one side are moved away from each other, opened, and deflected downward, thereby quickly unloading the inner release agent. In this way, efficient blocking is achieved when shielding is required, and when cleaning is required, the form is switched in time to quickly unload the release agent, thereby reducing maintenance costs and having excellent automation and intelligent effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a front view of the structure of the present invention;

[0038] Figure 2 is an axonometric drawing of the structure of the present invention;

[0039] Figure 3 This is a schematic diagram of the structure of the semi-shielding shell of the present invention;

[0040] Figure 4 Schematic diagram of the structure of the spray body of the present invention;

[0041] Figure 5 Schematic diagram of the structure of the mold cavity of the present invention;

[0042] Figure 6 This is a first schematic diagram of the structure of the upper shell of the present invention;

[0043] Figure 7 Schematic diagram of the structure of the bracket of the present invention;

[0044] Figure 8 This is a second schematic diagram of the structure of the upper shell of the present invention;

[0045] Figure 9 This is a third schematic diagram of the structure of the upper shell of the present invention;

[0046] Figure 10 For the present invention Figure 3 A magnified view of the structure at center A;

[0047] Figure 11 For the present invention Figure 4 A magnified view of the structure at B in the middle;

[0048] Figure 12 For the present invention Figure 5 A magnified view of the structure at center C;

[0049] Figure 13 For the present invention Figure 6 A magnified view of the structure at D in the middle;

[0050] Figure 14 For the present invention Figure 7 Enlarged view of the structure at E in the middle;

[0051] Figure 15 For the present invention Figure 8 A magnified view of the structure at F in the middle;

[0052] Figure 16 For the present invention Figure 9 A magnified view of the structure at G in the middle;

[0053] Figure 17 It is a schematic diagram of the structure of the threaded sleeve of the present invention;

[0054] Figure 18 This is a first schematic diagram of the structure of the spray output portion of the present invention;

[0055] Figure 19 This is a second schematic diagram of the structure of the spray output portion of the present invention.

[0056] Figure: 1. Base; 2. Die-casting machine; 3. Bracket; 4. Upper shell; 5. Electric telescopic part; 6. Mold cavity; 7. Spray output part; 8. Nozzle; 9. Blowing nozzle; 10. Spray body; 11. Semi-shielding shell; 12. Inner shielding shell; 13. Pressure shell; 14. Sealing strip; 15. Dual-axis motor; 16. Screw 1; 17. Threaded sleeve; 18. Sleeve shell; 19. Sliding rod; 20. Connecting rod; 21. L-shaped part; 22. Container 1; 23. Connector 1; 24. Container 2; 25. Moving rod; 26. Connector 2; 27. Clamping block; 28. Insert rod; 29. Electromagnet; 30. Metal block; 31. Guide; 32. L-shaped groove; 33. Moving column; 34. Kit; 35. Spline shaft; 37. Connecting shaft; 38. Rotating shaft; 39. Torsion spring; 40. Support; 41. Gear; 42. Rack; 43. Threaded groove; 44. Moving plate; 45. Telescopic rod; 46. Hinge plate; 47. Connecting block; 48. Gravity sensor; 71. Water hole; 72. Water hole; 73. Mist hole; 74. Compressed air hole. DETAILED DESCRIPTION

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0058] See also Figures 1 to 19This embodiment provides a die-casting machine mold cavity release agent adaptive spray plate, including: a base 1, a die-casting machine 2, a bracket 3, an upper shell 4, an electric telescopic part 5, a mold cavity 6, a spray assembly, a shielding assembly, a rotating mechanism, a moving mechanism and a transmission mechanism.

[0059] In this embodiment:

[0060] The operation of the rotating mechanism drives the moving mechanism to move the shielding component toward the mold cavity 6 to block the release agent scattered during the spraying process of the spray component. It is suitable for various mold opening distances and performs adaptive spray shielding. The operation of the rotating mechanism of this device in conjunction with the moving mechanism has the following effects:

[0061] 1. The rotating mechanism cooperates with the moving mechanism to adapt to various mold opening distances, allowing the shielding component to move and contact the spray area of the mold cavity, greatly reducing the release agent's flying pollution;

[0062] Second, it adopts mechanical relative motion and hydraulic oil compression unlocking mode, works based on the mechanical structure and the physical characteristics of hydraulic oil, and performs adaptive extension and shielding for various mold opening distances, which is suitable for die-casting machine mold cavity spraying operations;

[0063] Third, this method does not require excessive manual manipulation, avoiding insufficient or excessive movement of the shielding component. Within a certain range, the shielding component can automatically cut off the power transmission of the rotating mechanism after the extrusion is stable in contact with the mold cavity 6. It has good adaptability and intelligence. When the die-casting process is changed or the die-casting part is replaced, there is no need to adjust the operating parameters of the extension distance of the shielding component, which is more practical and adaptable.

[0064] Fourth, the moving mechanism brings the shielding assembly close to the mold cavity to cover the spray area, preventing the release agent from splashing to pollute the air and endanger health. The elastic sliding of the inner shielding shell 12 and the pressing shell 13 improves the contact tightness, and the extrusion of the sealing strip further enhances the shielding effect.

[0065] Through the operation of the moving mechanism, in cooperation with the transmission mechanism, the shielding components can be separated from each other and relatively deflected to discharge the release agent in the shielding components. This transmission mechanism cooperates with the moving and transmission mechanisms and utilizes the L-shaped movement characteristics. When the L-shaped long section moves, it can adapt to the full range of the mold opening distance to prevent spray splashing. When the L-shaped short section moves, the shielding components on one side are moved away from each other, opened and deflected downward to quickly unload the inner release agent. In this way, it can effectively block when shielding is needed, and switch the form to quickly unload the release agent when cleaning is required, reducing maintenance costs and having excellent automation and intelligent effects.

[0066] See also Figures 1-12 、 Figure 18 and Figure 19 In this embodiment, the spray assembly includes:

[0067] A spray output portion 7, with seven nozzles 8 and seven air blowing nozzles 9 provided on both sides of the spray output portion 7;

[0068] The interior of the spray output part 7 is provided with a water hole 71, a water hole 72, a mist hole 73 and a compressed air hole 74. The release agent is sprayed on the mold cavity 6 through the water hole 71, the water hole 72, the mist hole 73 and the compressed air hole 74 and through the nozzle 8. The upper end of the spray output part 7 is provided with a spray body 10, and the upper surface of the spray body 10 is fixedly connected to the end of the electric telescopic part 5.

[0069] In this embodiment: This method adopts the form of single-row spray on the front and back sides, which is different from the double-row spray form. It can reduce the injection amount of the release agent to a certain extent, further reduce the waste of the release agent, and also reduce the emission of waste gas and wastewater. Before the molten metal is pressed into the casting under high pressure, the spray assembly is first moved up and down in the mold cavity 6 to evenly spray the release agent onto the molding surface of the die-casting mold, so as to achieve the purpose of smooth demolding of the product.

[0070] It is worth noting that in this embodiment: four gravity sensors 48 are installed on the upper surface of the spray output part 7. Through the contraction of the telescopic part of the electric telescopic part 5, the sensing part of the gravity sensor 48 is in contact with the inner side of the semi-shielding shell 11, and then the gravity change of the shielding component is sensed to determine the amount of release agent attached to the shielding component.

[0071] In this embodiment: First of all, it should be noted that the adaptive spray plate device is independent of the die-casting machine 2. After the die-casting of the die-casting machine 2 is completed, the device is moved from top to bottom between the two opened mold cavities 6 of the die-casting machine to realize the movement of the spray component into the two mold cavities 6 to spray the release agent. In the actual moving-in process, the lifting of the bracket 3 can be used to realize it, that is, the bracket 3 can be an electric lifting bracket to realize the moving-in of the device, and the operation of the telescopic part of the electric telescopic member 5 can also be used to drive the vertical movement of the spray component to realize the device. The movement of the device is vertically transmitted, such as the telescopic rod 45, the kit 34 and the spline shaft 35 and other vertically connected parts, which are all retractable. When these parts need to be moved down into the mold cavity 6, it is only necessary to operate the telescopic part of the electric telescopic part 5 to extend, and the upper part of the inner side of the semi-shielding shell 11 in the shielding component is placed on the upper surface of the spray output part 7 of the spray component, and the telescopic structure can limit a certain telescopic distance, so that the shielding component moves downward a certain amount, and the spray component can continue to move downward, and can eventually move to the position as shown in the figure. Figure 9In the state shown, the spray assembly can move vertically to achieve all-round spraying of the mold cavity 6. When it is necessary to move the entire assembly upward and reset, the electric bracket 3 can be used to move it upward directly, or the electric telescopic part 5 can be retracted to make the upper surface of the spray output part 7 press against the upper surface of the inner side of the semi-shielding shell 11 to carry it upward and reset;

[0072] Furthermore, every time the upper surface of the spray output part 7 contacts the corresponding semi-shielding shell 11, the sensing part of the gravity sensor 48 can sense the degree of gravity change of the corresponding semi-shielding shell 11 and its shielding components, and judge the amount of release agent attached to the semi-shielding shell 11 by the change in gravity. When the gravity value reaches a certain threshold, the staff is promptly informed to clean or replace the inner side of the semi-shielding shell 11, so as to achieve the degree of adhesion of the release agent and convert it into the change in gravity, so as to intuitively display the actual cleanliness of the shielding components, with excellent intelligent effects.

[0073] See also Figures 1-12 In this embodiment, the shielding component includes:

[0074] Two semi-shielding shells 11, the semi-shielding shells 11 are semi-rectangular frame-shaped structures. The two semi-shielding shells 11 are opposite to each other and combined into a rectangular frame-shaped structure, and are located outside the spray output part 7;

[0075] Two inner shielding shells 12, the inner shielding shell 12 is slidably connected to the inner wall of the semi-shielding shell 11, and a slide is provided on the side of the inner shielding shell 12 facing the mold cavity 6. A pressure shell 13 is slidably connected to the groove wall of the slide. The pressure shell 13 and the opposite side of the slide are fixedly connected with a spring 1, so that a relative elastic sliding form is formed between the pressure shell 13 and the inner shielding shell 12, and a sealing strip 14 is provided on the side of the pressure shell 13 facing the mold cavity 6.

[0076] In this embodiment: the two half-shielding shells 11 on one side can form a rectangular frame structure, so that when the shielding component contacts the mold cavity 6, the release agent sprayed by the spray component in the mold cavity 6 and rebounded can be blocked to a certain extent, avoiding the release agent from flying indiscriminately in the air, polluting the working environment and possibly affecting the health of the staff, and because the shielding component adopts this sliding form, the shielding range is relatively larger, which can further reduce the situation of indiscriminate splashing of the release agent, and can cover the entire area between the spray component and the mold cavity 6 to a certain extent, with excellent anti-splashing effect.

[0077] See also Figures 1-11 and Figure 13-17 In this embodiment, the rotating mechanism includes:

[0078] A dual-axis motor 15, the housing of which is fixedly connected to the inner side of the mounting member, and the two output shafts of the dual-axis motor 15 are fixedly connected to a screw 16, the threaded portion of which is threadedly connected to a threaded sleeve 17, a side of which is fixedly connected to a sleeve 18 for rotation, and a slide rod 19 is slidably connected to the upper surface of the sleeve 18, and the end of the slide rod 19 is fixedly connected to the inner wall of the upper shell 4;

[0079] Two groups of connecting rods 20, each group of connecting rods 20 has two connecting rods, and each group of connecting rods 20 is fixedly connected to both sides of the housing 18;

[0080] Two L-shaped members 21, one end of the L-shaped member 21 is fixedly connected to the upper surface of the pressure shell 13, and a container 1 22 is fixedly installed on the upper surface of the two semi-shielding shells 11 facing the two mold cavities 6. The side of the container 1 22 is provided with a sliding opening for the other end of the L-shaped member 21 to extend into and slidably connect therewith. The other end of the L-shaped member 21 is fixedly connected to the push plate 1, and the upper surface of the container 1 22 is fixedly connected to the connector 1;

[0081] Two containers 24 are fixedly mounted on the inner wall of the housing 18. A push plate 2 is slidably connected to the inner wall of the container 24. A moving rod 25 is fixedly connected to the upper surface of the push plate 2. A joint 26 is fixedly connected to the lower surface of the container 24. The joint 1 23 and the joint 2 26 are connected by a hose.

[0082] Two clamping blocks 27, a socket for inserting the clamping block 27 is opened on the side of the threaded sleeve 17, a sliding groove is opened on the side of the clamping block 27, an insertion rod 28 is fixedly connected to the inner wall of the sliding groove, and an opening 1 is opened at the end of the movable rod 25 for inserting the insertion rod 28 and slidingly connected thereto, a spring 2 is fixedly connected to the opposite side of the clamping block 27 and the sliding groove wall, and a spring 3 is fixedly connected to the opposite side of the movable rod 25 and the container 2 24;

[0083] Two electromagnets 29 are provided with placement grooves in the threaded sleeve 17 , and the electromagnets 29 are installed in the placement grooves. A metal block 30 is fixedly connected to one side of the clamping block 27 facing the output end of the electromagnet 29 .

[0084] In this embodiment, the synchronous operation of the two rotating parts of the dual-axis motor 15 can simultaneously drive the screws 16 on both sides to rotate synchronously. During the rotation, due to the relationship between the thread transmission and the sliding restriction of the sleeve 18 by the slide rod 19, the sleeve 18 is moved along the length direction of the screw 16, thereby driving the moving mechanism and the shielding component to move cleanly toward the mold cavity 6 on one side, so as to shield and cover the spray area of the release agent of the spray component to prevent the release agent from randomly scattering.

[0085] As the shielding assembly is driven to move toward the mold cavity 6, the pressure shell 13 will first contact and press against the surface of the mold cavity 6. Due to the sliding elastic cooperation between the pressure shell 13 and the semi-shielding shell 11, a relative pressure sleeve will be formed between the pressure shell 13 and the semi-shielding shell 11, so that the L-shaped member 21 drives the push plate 1 to squeeze the hydraulic oil in the container 1 22, so that the hydraulic oil is input into the container 2 24 through the connector 1 23, the hose, and the connector 2 26. As the hydraulic oil is input, the push plate 2, the moving rod 25 and the block 27 will be pushed upward synchronously. Figure 16 As shown in the perspective, the block 27 is moved out of the socket on the threaded sleeve 17, thereby releasing the limit of the block 27 on the threaded sleeve 17, that is, releasing the limit of the sleeve 18 on the threaded sleeve 17. Therefore, when the screw 16 rotates, due to the lack of a limit relationship, the threaded advancement mechanism is released. At this time, the threaded sleeve 17 and the sleeve 18 will no longer move along the screw 16, and thus the movement is transmitted to the moving structure and the shielding assembly below, and the shielding assembly will not move toward the mold cavity 6, so as to realize the automatic start and stop of the shielding assembly.

[0086] When the entire structure needs to be reset, that is, when the shielding assembly is retracted, the control panel controls the electromagnet 29 to be energized, thereby giving the metal block 30 a magnetic attraction force. This magnetic attraction force overcomes the elastic force of the spring 2, so that the clamping block 27 is re-engaged in the socket to re-form the threaded moving mechanism. With the reversal of the screw 16, the pressing shell 13 is gradually moved away from the mold cavity 6, so that the positions of the pressing shell 13 and the inner shielding shell 12 are reset under the elastic relationship, thereby resetting the moving rod 25 due to the hydraulic oil and the spring 3, and finally stopping the power supply to the electromagnet 29 to achieve the purpose of resetting, thereby ensuring the normal recovery of the shielding assembly.

[0087] This method has the following advantages: in order to prevent the release agent from randomly scattering in the air when the spray assembly is working, which affects the working environment and the health of the workers, the shielding assembly can be moved closer to the mold cavity 6. In actual use, the shielding assembly and other components can be set to be transparent to facilitate observation of the actual spraying situation;

[0088] Moreover, the existing mold opening distance is uncertain. After the die-casting machine presses the molten metal into the mold cavity at high pressure for the die-casting operation, the die-casting machine needs to produce die-castings of different sizes and shapes, and the mold cavity space required for die-castings of different sizes may be different. For relatively large die-castings, the opening and closing distance of the two mold cavities 6 needs to be increased accordingly to provide sufficient mold cavity space. For relatively small die-castings, the mold opening and closing distance can be appropriately reduced to improve production efficiency and reduce energy consumption. Therefore, the mold opening distance is uncertain and may exist. In order to improve the quality and production efficiency of die-castings during the die-casting process, it may be necessary to It is necessary to constantly adjust the die-casting process parameters, such as injection speed, injection pressure, holding time, etc., and the adjustment of these parameters may affect the molding of the die-casting in the mold, and then it may be necessary to adjust the mold opening and closing distance. For example, if the injection speed is increased, the die-casting may be filled more fully in the mold, but it may also increase the friction between the die-casting and the mold, making it more difficult to remove the die-casting. At this time, the operator may appropriately increase the mold opening distance to ensure that the die-casting can be removed smoothly. In summary, the mold opening distance may have different mold opening distances when applied to different parts and various die-casting situations;

[0089] Therefore, the device can adapt to the adaptive movement under various mold opening distances, can ensure that the shielding component moves and contacts the mold cavity 6, and covers the spray area, so as to greatly reduce the situation where the release agent is scattered and polluted in the environment;

[0090] Moreover, the present method adopts such mechanical operation to perform adaptive stopping, which is different from the existing method of using distance sensors and optical sensors to sense the distance between the shielding component and the mold cavity 6 to control the moving distance of the shielding component. When applied to a die-casting machine, due to the high temperature in the die cavity of the die-casting machine and the presence of harsh conditions such as high-temperature steam and metal splashing, in addition, strong vibration and impact will be generated during the die-casting process, and the distance sensor may be greatly affected. In such a high-temperature environment, the electronic components of the distance sensor are easily damaged, resulting in a decrease in measurement accuracy or even failure. For example, common infrared distance sensors and laser distance sensors have internal electronic chips and optical components that are extremely sensitive to temperature. High temperature may make the chip performance unstable and the optical components deform, thereby affecting the accuracy of distance measurement. In addition, metal splashing may adhere to the sensor surface, blocking the sensor's detection head, resulting in an inability to measure the distance normally. Moreover, strong vibration and impact may loosen the sensor installation, affecting its measurement accuracy and stability.

[0091] The present method adopts mechanical relative motion, and the hydraulic oil compression unlocking form mainly relies on the mechanical structure and the physical properties of the hydraulic oil to work. To a certain extent, it is not affected by high temperature, metal splashing and vibration impact. The hydraulic oil may still maintain stable compression characteristics at high temperature. As long as the material of the mechanical components is selected appropriately and can withstand high temperature and impact, the entire system can operate stably and reliably. Therefore, to a certain extent, this form of mechanical transmission perception is more suitable for the spray operation of the die cavity 6 of the die casting machine, and has a certain degree of pertinence. The form of automatic perception of the mold opening distance does not need to rely too much on manual operation, because manual operation may cause the shielding component to move insufficient or excessively. However, within a certain range, regardless of the initial distance between the shielding component and the die cavity 6, as long as the shielding component contacts the die cavity 6 and squeezes and maintains stability, the power transmission of the rotating mechanism can be automatically cut off, thereby having better adaptability and intelligence. Moreover, when the die casting process changes or the thickness of the die casting is replaced, there is no need to adjust the operating parameters of the device, and it can still adapt to different mold opening distances, which is more practical.

[0092] For example, when the distance between the spray component and the shielding component when they initially enter the two dies of the die-casting machine is not at the center point, such as spraying close to one side, shielding adaptation can still be performed, so this method has better adaptability.

[0093] See also Figures 1-15 In this embodiment, the moving mechanism includes:

[0094] There are four guide members 31, the side surfaces of the guide members 31 are fixedly connected to the ends of the connecting rods 20, and four L-shaped grooves 32 are provided on the lower surface of the upper shell 4. The inner side of the guide members 31 and the groove walls of the L-shaped grooves 32 are slidably connected with a movable column 33, the inner side of the movable column 33 is rotatably connected with a kit 34, the inner side of the kit 34 is slidably connected with a spline shaft 35, the end of the spline shaft 35 is rotatably connected with a connecting shaft 37, the end of the connecting shaft 37 is rotatably connected with a rotating shaft 38, and a torsion spring 39 is fixedly connected to the outer surface, and the end of the torsion spring 39 is fixedly connected to a support 40. A groove body for sliding the support 40 is provided on the upper surface of the semi-shielding shell 11, and the lower surface of the support 40 is fixedly connected to the upper surface of the inner shielding shell 12.

[0095] In this embodiment, as the connecting rod 20 moves linearly along the length of the screw 16, the two guide members 31 on one side will be driven to move laterally synchronously. Moreover, due to the sliding restriction relationship between the transverse section, i.e., the long section, of the L-shaped groove 32, the inner side of the guide member 31, and the movable column 33, the movable column 33 will be driven to move linearly along the transverse section, i.e., the long section, of the L-shaped groove 32, thereby causing the movable column 33, the sleeve 34, the spline shaft 35, the connecting shaft 37, and the pressure shell 13 to move synchronously.

[0096] like Figure 10 and Figure 3 From the perspective, the shielding component on one side will move toward the direction of the mold cavity 6, and then the outside of the spray area of the spray component can be covered to prevent the spray of the release agent from scattering, thereby polluting the air and affecting the health of the staff. The elastic sliding relationship between the inner shielding shell 12 and the pressure shell 13 can improve the contact tightness between the shielding component on one side and the mold cavity. The shielding effect can be further improved by squeezing the component under the action of the sealing strip 14, thereby further improving the shielding effect. The method adopts the method of linear movement and covering the shielding area, which can adapt to the mold opening distance between the two mold cavities 6 of various die-casting machines to a certain extent, so as to greatly improve the applicability. Due to the unique setting of the rotating mechanism, it is known that there is no need for too much manual operation to start and stop, and it has an excellent automation effect.

[0097] See also Figures 1-10 、 Figure 11 and Figure 13-15 In this embodiment, the transmission mechanism includes:

[0098] Four gears 41, the inner side of the gear 41 is fixedly connected to the upper end of the kit 34, four rack rows 42 are fixedly connected to the inner wall of the upper shell 4, the lower end of the spline shaft 35 is provided with a threaded groove 43, the groove wall of the threaded groove 43 is threadedly connected to a movable plate 44, the upper end of the movable plate 44 is fixedly connected to a telescopic rod 45, the end of the telescopic rod 45 is connected to;

[0099] There are four hinged plates 46 , one end of which is hinged to the lower surface of the movable plate 44 , and the other end of which is hinged to a connecting block 47 . A second groove for sliding the connecting block 47 is provided on the upper surface of the semi-shielding shell 11 .

[0100] In this embodiment: When the movable column 33 enters the vertical section of the L-shaped groove 32, as shown in FIG. Figure 15 As shown, it is a shorter section of the L-shaped groove 32, which will synchronously drive the kit 34, gear 41, spline shaft 35, connecting shaft 37, support 40, inner shielding shell 12 and pressure shell 13 to move synchronously in the vertical section of the L-shaped groove 32, that is, as shown in FIG. Figure 8 From the perspective shown, the two semi-shielding shells 11 on one side move away from each other, and in this process, since the gear 41 has entered the vertical section of the L-shaped groove 32, the gear 41 is now engaged with the corresponding rack row 42, so that the gear 41 rotates, and the gear 41 drives the kit 34, the spline shaft 35 and the thread groove 43 to rotate synchronously. During the thread transmission, due to the vertical restriction relationship between the telescopic rod 45 and the movable plate 44, the movable plate 44 is driven to move downward, as shown in FIG. Figure 10As shown in the perspective, it will drive the hinge plate 46 to move closer to the semi-shielding shell 11, thereby applying a downward pressure on one side to the semi-shielding shell 11 through the hinge plate 46, and under the action of the torsion spring 39 and the relationship of the shaft connection, axial rotation is formed between the connecting shaft 37 and the support 40, and it has elastic resetability, and under the sliding restriction relationship between the torsion spring 39 and the support 40 and the semi-shielding shell 11, the stability of the semi-shielding shell 11 can be guaranteed during use, and the semi-shielding shell 11 will not deflect. When it is needed, that is, the gear 41 has entered the vertical section of the L-shaped groove 32, at this time, the hinge plate 46 applies a one-side pressure to the semi-shielding shell 11 through the connecting block 47, thereby causing the semi-shielding shell 11 and the components thereon to deflect with the rotation axis 38 as the center of the circle, thereby causing a group of two opposite semi-shielding shells 11 to deflect in relative opposite directions, which can be referred to Figure 8 and Figure 9 From the intuitive overall perspective, the two hinge plates 46 on one side are located on the inner side of the two thread grooves 43, so that when the two hinge plates 46 on the inner side give downward pressure, the two semi-shielding shells 11 on one side can be synchronously deflected in the opposite direction, so that the two semi-shielding shells 11 on one side are combined together to form a rectangular frame structure in the initial state, and in the second state, the rectangular frame structure can be opened, and in order to avoid deflection or collision of the structure, such as Figure 15 As shown, after the gear 41 enters the vertical section of the L-shaped groove 32, it does not immediately engage with the rack row 42. Instead, the gear 41 moves a certain distance on the vertical section of the L-shaped groove 32 before engaging with the rack row 42, corresponding to the following. Figure 10 The perspective shown is that the two half-shielding shells 11 on one side first move horizontally back to back, and then deflect in the opposite direction synchronously to ensure that the two half-shielding shells 11 can complete the deflection to avoid structural collision. The remaining large amount of release agent in the area below the inner side of the shielding component after use is removed to avoid the release agent from adhering to the lower area of the inner side of the rectangle formed by the shielding component for a long time. This method has the following advantages:

[0101] Because when the die-casting machine is operating, it is necessary to pressurize the molten metal into the mold cavity for casting. In order to ensure that the molded part is effectively separated from the mold cavity, it is necessary to spray the release agent into the mold cavity under pressure to form a thin film structure between the mold cavity and the metal part to be molded to ensure normal demolding of the metal part. The invention adopts a shielding form to prevent the release agent from splashing when the release agent is sprayed. Since the shielding component adopts a rectangular frame structure, the area where the release agent is sprayed is fully shielded, and a large amount of release agent will be attached to the shielding component. Due to the relationship between gravity, a large amount of release agent may remain on the inner side and lower side of the rectangular frame structure.

[0102] If the release agent is not removed and discharged in a timely manner, the release agent attached to the shielding component will gradually thicken, which may change the surface state of the shielding component, resulting in a restricted area for release agent injection and an inability to evenly spray into the mold cavity. For example, a nozzle with a fixed injection angle and range may deviate from the release agent injection direction due to the uneven surface of the shielding component, resulting in excessive injection in some areas and insufficient injection in others, affecting the demolding effect. Over time, the dried release agent film on the shielding component may flake off due to vibration, airflow, and other factors, drifting into the air and causing air pollution in the production workshop. This not only affects the health of operators, but may also adhere to the surfaces of other equipment, causing corrosion or affecting the normal operation of the equipment. If the release agent on the shielding component is not removed in a timely manner, the release agent will continue to accumulate and become increasingly difficult to remove. The accumulated release agent may mix with dust and impurities, forming stubborn dirt, which requires stronger cleaning agents and more time and manpower to clean, increasing production costs.

[0103] Therefore, this method adopts this special linkage form, with the help of the mutual cooperation of the moving mechanism and the transmission mechanism, and uses the characteristics of L-shaped movement. When the long section of the L-shape moves, the spray splash is blocked with an adaptive shielding distance. When the short section of the L-shape moves, the shielding components can move away from and open each other, and deflect downward to achieve rapid unloading of a large amount of release agent attached to the inside of the shielding component, so as to ensure that the scattered release agent is efficiently shielded when shielding is needed. When the release agent needs to be cleaned and unloaded, the shape of the shielding component is switched to ensure rapid unloading of the release agent, thereby reducing the maintenance cost of the device and having excellent automation and intelligent effects.

[0104] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An adaptive spray plate for mold release agent in a die-casting machine cavity, characterized in that: include: A base (1), a die-casting machine (2) is installed on the upper surface of the base (1), a bracket (3) is installed on the side of the base (1), an upper shell (4) is installed at the end of the bracket (3), an electric telescopic member (5) is fixedly installed on the lower surface of the upper shell (4) through a mounting member, a spray assembly is provided at the end of the electric telescopic member (5), and two groups of shielding assemblies are provided below the upper shell (4), and each group of shielding assemblies forms a rectangular frame structure after being combined; The die-casting machine (2) comprises two die cavities (6); The adaptive spray plate further comprises a rotating mechanism, a moving mechanism and a transmission mechanism arranged below the upper shell (4); The rotating mechanism drives the moving mechanism to move, so that the shielding component moves toward the mold cavity (6) to block the release agent scattered during the spraying process of the spraying component, and is suitable for various mold opening distances to perform adaptive spray shielding; The moving mechanism and the transmission mechanism cooperate to separate the shielding components from each other and deflect them relative to each other, so as to discharge the release agent in the shielding components.

2. The die-casting machine mold cavity release agent adaptive spray plate according to claim 1, characterized in that: The spray assembly comprises: A spray output portion (7), wherein seven nozzles (8) and seven air blowing nozzles (9) are provided on both sides of the spray output portion (7); The interior of the spray output part (7) is provided with a water hole (71), a water hole (72), a mist hole (73) and a compressed air hole (74), and the release agent is sprayed on the mold cavity (6) through the water hole (71), the water hole (72), the mist hole (73) and the compressed air hole (74) and via the nozzle (8). The upper end of the spray output part (7) is provided with a spray body (10), and the upper surface of the spray body (10) is fixedly connected to the end of the electric telescopic part (5).

3. The die-casting machine mold cavity release agent adaptive spray plate according to claim 2, characterized in that: The shielding component includes: Two semi-shielding shells (11), each of which is a semi-rectangular frame structure, are arranged relative to each other to form a rectangular frame structure, and are located outside the spray output portion (7); Two inner shielding shells (12), the inner shielding shells (12) are slidably connected to the inner wall of the semi-shielding shell (11), a slideway is provided on the side of the inner shielding shell (12) facing the mold cavity (6), a pressure shell (13) is slidably connected to the groove wall of the slideway, the pressure shell (13) and the opposite side of the slideway are fixedly connected with a spring 1, so that a relative elastic sliding form is formed between the pressure shell (13) and the inner shielding shell (12), and a sealing strip (14) is provided on the side of the pressure shell (13) facing the mold cavity (6).

4. The die-casting machine mold cavity release agent adaptive spray plate according to claim 3, characterized in that: The rotating mechanism includes a threaded component and an induction component; The threaded component comprises: A dual-axis motor (15), wherein the housing of the dual-axis motor (15) is fixedly connected to the inner side of the mounting member, and the two output shafts of the dual-axis motor (15) are fixedly connected to a screw rod (16), the threaded portion of the screw rod (16) is threadedly connected to a threaded sleeve (17), and the side of the threaded sleeve (17) is connected to a sleeve (18) for fixed-axis rotation, and the upper surface of the sleeve (18) is slidably connected to a slide rod (19), and the end of the slide rod (19) is fixedly connected to the inner wall of the upper shell (4); Two groups of connecting rods (20), each group of connecting rods (20) has two connecting rods, and each group of connecting rods (20) is fixedly connected to both sides of the casing (18).

5. The die-casting machine mold cavity release agent adaptive spray plate according to claim 4, characterized in that: The induction component includes: Two L-shaped pieces (21), one end of the L-shaped piece (21) is fixedly connected to the upper surface of the pressing shell (13), and a container (22) is fixedly installed on the upper surface of the two semi-shielding shells (11) facing the two mold cavities (6), and a sliding opening is provided on the side of the container (22) for the other end of the L-shaped piece (21) to extend into and be slidably connected thereto, the other end of the L-shaped piece (21) is fixedly connected to a push plate (1), and a joint (23) is fixedly connected to the upper surface of the container (22); Two containers (24), the container (24) being fixedly mounted on the inner wall of the housing (18), the inner wall of the container (24) being slidably connected to a push plate (2), the upper surface of the push plate (2) being fixedly connected to a moving rod (25), the lower surface of the container (24) being fixedly connected to a joint (26), the joint (23) and the joint (26) being connected via a hose; Two clamping blocks (27), a socket for inserting the clamping block (27) is provided on the side of the threaded sleeve (17), a sliding groove is provided on the side of the clamping block (27), an insertion rod (28) is fixedly connected to the inner wall of the sliding groove, an opening 1 is provided at the end of the moving rod (25) for inserting the insertion rod (28) and slidingly connected thereto, a spring 2 is fixedly connected to the opposite side of the clamping block (27) and the sliding groove wall, and a spring 3 is fixedly connected to the opposite side of the moving rod (25) and the container 2 (24); Two electromagnets (29), a placement groove is provided inside the threaded sleeve (17), the electromagnet (29) is installed in the placement groove, and a metal block (30) is fixedly connected to the side of the clamping block (27) facing the output end of the electromagnet (29).

6. The die-casting machine mold cavity release agent adaptive spray plate according to claim 5, characterized in that: The moving mechanism comprises: Four guide members (31), the side surfaces of the guide members (31) are fixedly connected to the ends of the connecting rods (20), four L-shaped grooves (32) are provided on the lower surface of the upper shell (4), the inner sides of the guide members (31) and the groove walls of the L-shaped grooves (32) are slidably connected to a moving column (33), the inner side of the moving column (33) is connected to a set (34) for fixed axis rotation, the inner side of the set (34) is slidably connected to a spline shaft (35), the spline shaft The end of the key shaft (35) is fixedly connected to a connecting shaft (37) for rotation, the end of the connecting shaft (37) is fixedly connected to the outer surface of a rotating shaft (38) for rotation, the end of the torsion spring (39) is fixedly connected to a support (40), the upper surface of the semi-shielding shell (11) is provided with a groove for the support (40) to slide, and the lower surface of the support (40) is fixedly connected to the upper surface of the inner shielding shell (12).

7. The die-casting machine mold cavity release agent adaptive spray plate according to claim 6, characterized in that: The transmission mechanism comprises: Four gears (41), the inner sides of the gears (41) are fixedly connected to the upper end of the kit (34), four racks (42) are fixedly connected to the inner wall of the upper shell (4), a thread groove (43) is provided at the lower end of the spline shaft (35), a movable plate (44) is threadedly connected to the groove wall of the thread groove (43), and a telescopic rod (45) is fixedly connected to the upper end of the movable plate (44), and the end of the telescopic rod (45) is connected to the said; Four hinged plates (46), one end of each hinged plate (46) is hinged to the lower surface of the movable plate (44), the other end of each hinged plate (46) is hinged to a connecting block (47), and a groove body (2) for sliding the connecting block (47) is provided on the upper surface of the semi-shielding shell (11).

8. The die-casting machine mold cavity release agent adaptive spray plate according to claim 3, characterized in that: Four gravity sensors (48) are installed on the upper surface of the spray output part (7). Through the contraction of the telescopic part of the electric telescopic part (5), the sensing part of the gravity sensor (48) contacts the inner side of the semi-shielding shell (11), thereby sensing the gravity change of the shielding component to determine the amount of release agent attached to the shielding component.

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