Injection Molding Device for Injection Molded Parts with Integer Structure

Abstract

The present invention relates to the technical field of injection molding, and discloses an injection molding device for injection molded parts with a shaping structure, including a machine base, an injection molding mechanism and a mold clamping assembly arranged on the machine base, and the mold clamping assembly is located on the left side of the injection molding mechanism. The injection molding device also includes two locking mechanisms arranged on the mold clamping assembly; the mold clamping assembly includes a moving mold base and a fixed mold base, and the locking mechanism includes a locking moving block and a locking fixed block. For the injection molding device for injection molded parts with a shaping structure, during the mold clamping process, a powerful self-locking force is generated immediately when the moving mold base and the fixed mold base come into contact. This design not only effectively prevents the increase of the mold gap caused by the injection pressure, but also significantly improves the locking stability of the mold and the injection molding precision, ensures the high-quality production of complex automotive plastic parts, and at the same time can ensure that the mold remains stable and does not shake during high-pressure injection, effectively avoiding the phenomena of overflow and burrs on the injection molded parts, and further improving the product quality and production efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of injection molding, and particularly relates to an injection device for injection molded parts with an integer structure. Background Art

[0002] Automobiles contain a large number of components. Some of these components are made of metal materials, including engines and gearboxes, and some are made of plastic materials, including instrument panels and center consoles. The plastic components are usually completed by injection molding during the preparation process. Due to its advantages such as light weight, corrosion resistance, and easy processing and molding, plastic has been widely used in the automotive industry, and plastic parts have become an important part of automobiles.

[0003] Currently, in the existing injection molding equipment for automotive plastic parts, since traditional injection molding machines cannot provide stable and sufficient clamping force to meet the requirements of high-pressure injection molding, it is easy to cause the mold to not close tightly during the injection molding process, resulting in plastic melt overflowing at the mold parting surface and forming burrs. Furthermore, it may lead to burr problems in plastic parts. The presence of burrs not only affects the overall appearance beauty of plastic parts, but also may pose potential threats to their functionality and use safety, such as affecting assembly accuracy and increasing friction and wear. Therefore, there are deficiencies and it cannot meet the production and use requirements of manufacturers. Therefore, it is necessary to further improve.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and an injection device for injection molded parts with an integer structure is provided, in order to achieve a more practical value purpose. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides an injection device for injection molded parts with an integer structure, which is achieved by the following specific technical means:

[0006] An injection device for injection molded parts with an integer structure includes a machine base, an injection mechanism and a mold clamping assembly arranged on the machine base, and the mold clamping assembly is located on the left side of the injection mechanism. It further includes two locking mechanisms arranged on the mold clamping assembly;

[0007] The mold clamping assembly includes a moving mold base and a fixed mold base. The locking mechanism includes a locking moving block and a locking fixed block. Locking moving blocks and locking fixed blocks are arranged on both the moving mold base and the fixed mold base. When the moving mold base and the fixed mold base are clamped, the locking moving block and the locking fixed block are combined with each other to apply a clamping force to the moving mold base and the fixed mold base;

[0008] A locking block is fixedly installed on one side of the locking moving block opposite to the locking fixed block, and a fixed iron sheet is fixedly embedded in the locking moving block. A locking groove for inserting the locking block is opened on the locking fixed block, and a positioning assembly for locking the locking block is arranged inside the locking fixed block, and the positioning assembly is arranged on the inner side wall of the locking groove;

[0009] Inside the locking and fixing block, there are also arranged a cleaning airbag, a first electromagnet, a reset assembly and a jet mechanism. By inserting the locking block into the locking groove, the first electromagnet is synchronously driven to be energized and attracted to the fixed iron sheet. At the same time, the air flow in the cleaning airbag is delivered to the jet mechanism, and the air flow ejected by the jet mechanism can blow the debris on the parting surface of the moving die base and the fixed die base clean to complete automatic cleaning.

[0010] As a further description of the above technical solution: Through this setting, during the mold closing process, a powerful self-locking force is generated instantaneously when the moving die base and the fixed die base come into contact. This design not only effectively prevents the increase of the mold gap caused by the injection pressure, but also significantly improves the locking stability of the mold and the injection molding accuracy, ensures the high-quality production of complex automotive plastic parts, and at the same time can ensure that the mold remains stable and does not shake during high-pressure injection, effectively avoiding the phenomena of flash and burrs on the injection molded parts, and further improving the product quality and production efficiency.

[0011] Further, the mold closing assembly further includes a fixed seat fixedly assembled on the machine base. Four symmetrically assembled guide rods are fixedly assembled on the fixed seat. A mold closing hydraulic cylinder for driving the moving die base is fixedly assembled on the left side of the fixed seat. The fixed die base is fixedly assembled at the right end of the guide rod. The moving die base is slidably assembled on the guide rod, and the moving die base is located between the fixed seat and the fixed die base. Cavities for plastic part injection molding are provided on the opposite surfaces of the moving die base and the fixed die base;

[0012] Wherein, the piston rod on the mold closing hydraulic cylinder passes through the fixed seat and is fixedly connected to the moving die base. A limit frame for limiting the movement of the moving die base is fixedly installed on one side of the fixed seat opposite to the moving die base.

[0013] As a further description of the above technical solution: The mold closing hydraulic cylinder drives the piston rod to push the moving die base on the guide rod and move towards the fixed die base. Based on the thrust of the mold closing hydraulic cylinder, the moving die base and the moving die base are combined with each other to form a mold closing state.

[0014] Further, four symmetrically arranged positioning pins are fixedly assembled on one side of the moving die base opposite to the fixed die base. Positioning grooves corresponding to the positioning pins are provided on one side of the fixed die base opposite to the moving die base.

[0015] As a further description of the above technical solution: By inserting the positioning pins into the positioning grooves, the accuracy of the mold closing of the moving die base and the fixed die base can be ensured.

[0016] Further, the positioning component includes a positioning shell fixedly assembled on the inner wall of the locking fixed block. A second electromagnet and a movable plate are arranged inside the positioning shell, and the movable plate is made of a metal material that can be attracted to the second electromagnet. A positioning block is slidably installed on one side wall of the positioning shell. One end of the positioning block extends into the positioning shell and is fixedly connected to the movable plate. A positioning spring is fixedly connected between the side of the movable plate facing the positioning block and the inner wall of the positioning shell;

[0017] Wherein, a locking slot matching the positioning block is formed on the locking block.

[0018] As a further description of the above technical solution: Through this setting, self-locking of the locking block can be achieved, thereby strengthening the clamping force when the moving mold base and the fixed mold base are clamped.

[0019] Further, an extrusion plate is also arranged inside the locking fixed block. The extrusion plate is located on one side of the cleaning airbag. A one-way air inlet valve is fixedly assembled on the inner wall of the locking fixed block, and one end of the one-way air inlet valve is fixedly connected to the cleaning airbag.

[0020] As a further description of the above technical solution: Through this setting, debris on the parting surface of the moving mold base and the fixed mold base can be cleaned efficiently and accurately. At the same time, through the setting of the one-way air inlet valve, the cleaning airbag can be automatically inflated when it is reset.

[0021] Further, the reset component includes a reset shell fixedly assembled in the locking fixed block. A movable block is movably installed inside the reset shell. A reset rod is fixedly installed on one side of the movable block. The end of the reset rod away from the movable block extends outside the reset shell and is fixedly connected to the extrusion plate. A reset spring is fixedly connected between the other side of the movable block and the inner wall of the reset shell;

[0022] Wherein, the reset component further includes a first induction sheet and a second induction sheet. The first induction sheet is fixedly assembled on the movable block, the second induction sheet is fixedly assembled on the inner wall of the reset shell, and the first induction sheet and the second induction sheet are electrically connected to the second electromagnet.

[0023] As a further description of the above technical solution: By the magnetic force of the first electromagnet after being energized, the fixed iron sheet is firmly attracted, so that the locking moving block and the locking fixed block are firmly adsorbed together, thereby ensuring the clamping force of the moving mold base and the fixed mold base.

[0024] Further, the jetting mechanism includes a jetting seat movably assembled on the locking fixed block. An elastic corrugated rubber ring is fixedly connected between the jetting seat and the locking fixed block. A ventilation pipe is fixedly installed on one side of the jetting seat. The end of the ventilation pipe away from the jetting seat passes through the elastic corrugated rubber ring and is fixedly connected to the cleaning airbag. The ventilation pipe is made of rubber material;

[0025] The jetting mechanism further includes a sweeping component and a knocking component movably assembled on the jetting seat. The knocking component is blown by the cleaning air flow to knock the sweeping component, enabling the sweeping component to rotate at an angle and blowing the debris on the parting surfaces of the moving die base and the fixed die base clean.

[0026] As a further description of the above technical solution: Through this setting, the debris on the parting surfaces of the moving die base and the fixed die base can be cleaned efficiently and accurately, ensuring that the parting surfaces of the moving die base and the fixed die base are clean and free of impurities, and reducing the insufficient clamping force caused by debris residue.

[0027] Further, the sweeping component includes a sweeping ball, which is rotatably installed on the jetting seat through a movable pin shaft. An air vent for the passage of the cleaning air flow is provided inside the sweeping ball.

[0028] As a further description of the above technical solution: Through the setting of the sweeping ball, the cleaning air flow can be guided, and the debris on the parting surfaces of the moving die base and the fixed die base can be effectively cleaned efficiently and accurately.

[0029] Further, the knocking component includes a movable shaft fixedly assembled in the jetting seat. A movable sleeve is movably installed on the movable shaft. Two symmetrically arranged knocking plates are fixedly installed on the movable sleeve. Knocking members for knocking the sweeping ball are provided on both of the two knocking plates, and the knocking plates and the knocking members are both located in the air vent. Fixed plates are fixedly installed at both ends of the movable sleeve on the movable shaft. An elastic layer is fixedly connected between the fixed plate and the knocking plate.

[0030] As a further description of the above technical solution: Through this setting, the sweeping ball can be adjusted at an angle under the knocking force of the knocking member, and a sweeping shape with an up-and-down angle can be formed, so as to increase the sweeping angle and the cleaning area of the parting surfaces of the moving die base and the fixed die base, and further improve the cleaning effect on the parting surfaces of the moving die base and the fixed die base.

[0031] Further, a protective cover for protection is fixedly assembled on the upper side of the machine base and outside the mold clamping component. A control chassis for controlling the equipment is provided on the machine base. A discharge chute for discharging the molded plastic parts is provided on the machine base, and the discharge chute is located at the bottoms of the moving die base and the fixed die base.

[0032] As a further description of the above technical solution: Through the setting of the control chassis, it is convenient to control the equipment. At the same time, the discharge chute is used to guide and collect the discharged automotive plastic parts.

[0033] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0034] 1. The injection molding device with a plastic structure generates a strong self-locking force when the movable mold base and the fixed mold base contact at the moment of contact during the mold closing process through the cooperation between the mold closing component, the locking mechanism, the first electromagnet and the reset component. This design not only effectively prevents the increase of the mold gap caused by the injection pressure, but also significantly improves the locking stability of the mold and the injection molding accuracy, ensuring the high-quality production of complex automotive plastic parts. At the same time, the setting can quickly reach and maintain a clamping force level higher than that of a traditional injection molding machine during the mold closing stage. By accurately controlling the mold closing speed and pressure, it is ensured that the mold is still stable and without shaking during high-pressure injection, effectively avoiding overflow and burrs on the injection molded parts, and further improving product quality and production efficiency.

[0035] 2. The injection molding device for injection molded parts with a shaping structure cooperates with the mold clamping assembly, the locking mechanism, the cleaning air bag and the jet mechanism so that during the mold clamping process, the cleaning air bag is squeezed by the extrusion plate, and the gas in the cleaning air bag is driven to be transmitted to the jet seat along the vent pipe, and then the cleaning air flow is sprayed toward the parting surface of the movable mold seat and the fixed mold seat through the sweeping ball, so that the debris on the parting surface of the movable mold seat and the fixed mold seat can be cleaned efficiently and accurately, ensuring that the parting surface of the movable mold seat and the fixed mold seat is clean and free of impurities, and reducing the insufficient clamping force caused by residual debris.

[0036] 3. The injection molding device for injection molded parts with a shaping structure cooperates with the cleaning air bag and the jet mechanism so that when the sweeping ball sprays the cleaning airflow toward the parting surface of the movable mold seat and the fixed mold seat, the force of the airflow will blow the knocking plate, causing it to vibrate up and down, and the knocking plate will drive the knocking piece to knock on the sweeping ball while shaking, so that the sweeping ball adjusts its angle under the knocking force of the knocking piece, and forms a sweeping shape with an up and down angle, thereby increasing the sweeping angle and the blowing area of ​​the parting surface of the movable mold seat and the fixed mold seat, and further improving the cleaning effect of the parting surface of the movable mold seat and the fixed mold seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0038] Figure 1 It shows a schematic diagram of the overall structure provided by an embodiment of the present invention;

[0039] Figure 2 The overall structure diagram of the mold clamping assembly provided according to an embodiment of the present invention is shown;

[0040] Figure 3 A schematic diagram of the structure of a movable mold base according to an embodiment of the present invention is shown;

[0041] Figure 4 It shows a schematic structural diagram of a fixed mold base provided according to an embodiment of the present invention;

[0042] Figure 5 A schematic diagram of the installation structure of the locking movable block and the locking fixed block provided in an embodiment of the present invention is shown;

[0043] Figure 6 A schematic diagram of a local structure of a locking block provided according to an embodiment of the present invention is shown;

[0044] Figure 7 A schematic diagram of a local structure of a positioning component provided according to an embodiment of the present invention is shown;

[0045] Figure 8 A schematic diagram of the installation structure of the reset assembly and the extrusion plate provided in an embodiment of the present invention is shown;

[0046] Figure 9 A partial structural schematic diagram of a reset component provided according to an embodiment of the present invention is shown;

[0047] Figure 10 A schematic diagram of a local structure of an injection assembly provided according to an embodiment of the present invention is shown;

[0048] Figure 11 A schematic diagram of the installation structure of a scanning component and a striking component provided according to an embodiment of the present invention is shown.

[0049] Legend:

[0050] 10. Machine base; 11. Protective cover; 12. Control box; 13. Discharge slide;

[0051] 20. Injection molding mechanism;

[0052] 30. mold clamping assembly; 31. fixed seat; 311. limit frame; 32. guide rod; 33. mold clamping hydraulic cylinder; 34. movable mold seat; 341. positioning pin; 35. fixed mold seat; 351. positioning groove;

[0053] 40. Locking mechanism; 41. Locking movable block; 411. Locking block; 4111. Locking slot; 412. Fixed iron sheet; 42. Locking fixed block; 421. Locking slot; 422. Extrusion plate;

[0054] 50. Positioning assembly; 51. Positioning shell; 52. Second electromagnet; 53. Movable plate; 54. Positioning block; 55. Positioning spring;

[0055] 60. Cleaning airbag; 61. One-way air inlet valve;

[0056] 70. First electromagnet;

[0057] 80. Reset assembly; 81. Reset housing; 82. Movable block; 83. Reset rod; 84. Reset spring; 85. First induction sheet; 86. Second induction sheet;

[0058] 90. Jet mechanism; 91. Jet seat; 92. Elastic corrugated rubber ring; 93. Vent pipe; 94. Scanning assembly; 941. Scanning ball; 942. Movable pin shaft; 943. Vent port; 95. Knocking assembly; 951. Movable shaft; 952. Movable sleeve; 953. Knocking plate; 954. Knocking piece; 955. Fixed plate; 956. Elastic layer. Specific embodiments

[0059] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0060] Please refer to Figures 1 to 11, an injection molding device for injection molded parts with an integral structure, including a machine base 10, an injection molding mechanism 20 and a mold clamping assembly 30 arranged on the machine base 10, and the mold clamping assembly 30 is located on the left side of the injection molding mechanism 20. It also includes two locking mechanisms 40 arranged on the mold clamping assembly 30; the mold clamping assembly 30 includes a moving mold base 34 and a fixed mold base 35. The locking mechanism 40 includes a locking moving block 41 and a locking fixed block 42. The locking moving block 41 and the locking fixed block 42 are arranged on both the moving mold base 34 and the fixed mold base 35. When the moving mold base 34 and the fixed mold base 35 are clamped, the locking moving block 41 and the locking fixed block 42 are combined with each other to apply a mold clamping force to the moving mold base 34 and the fixed mold base 35; a locking block 411 is fixedly installed on one side of the locking moving block 41 facing the locking fixed block 42, and a fixed iron sheet 412 is fixedly embedded in the locking moving block 41. A locking groove 421 for inserting the locking block 411 is provided on the locking fixed block 42. A positioning assembly 50 for locking the locking block 411 is arranged inside the locking fixed block 42, and the positioning assembly 50 is arranged on the inner side wall of the locking groove 421; a cleaning air bag 60, a first electromagnet 70, a reset assembly 80 and a jetting mechanism 90 are also arranged inside the locking fixed block 42. When the locking block 411 is inserted into the locking groove 421, the first electromagnet 70 is synchronously driven to be energized and attracted to the fixed iron sheet 412. At the same time, the air flow in the cleaning air bag 60 is conveyed to the jetting mechanism 90, and the air flow jetted by the jetting mechanism 90 can blow the debris on the parting surfaces of the moving mold base 34 and the fixed mold base 35 clean to complete automatic cleaning; through this setting, during the mold clamping process, a strong self-locking force is generated between the moving mold base 34 and the fixed mold base 35 at the moment of contact. This design not only effectively prevents the increase of the mold gap caused by the injection molding pressure, but also significantly improves the locking stability of the mold and the injection molding accuracy, ensuring the high-quality production of complex automotive plastic parts. At the same time, this setting can quickly reach and maintain a mold clamping force level higher than that of traditional injection molding machines during the mold clamping stage. By precisely controlling the mold clamping speed and pressure, it is ensured that the mold remains stable and does not shake during high-pressure injection, effectively avoiding the phenomena of overflow and burrs on the injection molded parts.

[0061] Please refer to Figure 1 , a protective cover 11 for protection is fixedly assembled on the upper side of the machine base 10 and around the mold clamping assembly 30. A control chassis 12 for controlling the equipment is arranged on the machine base 10. A discharge chute 13 for discharging the molded plastic parts is arranged on the machine base 10, and the discharge chute 13 is located at the bottom of the moving mold base 34 and the fixed mold base 35; through the setting of the control chassis 12, it is convenient to control the equipment. At the same time, the piston rod on the mold clamping hydraulic cylinder 33 drives the moving mold base 34 and the fixed mold base 35 to separate from each other to realize the discharge of automotive plastic parts. At the same time, the discharge chute 13 is used to guide and collect the discharged automotive plastic parts.

[0062] Please refer to Figure 2The mold clamping assembly 30 also includes a fixed seat 31 fixedly assembled on the machine base 10, and four symmetrically assembled guide rods 32 are fixedly assembled on the fixed seat 31. A mold clamping hydraulic cylinder 33 for driving a movable mold seat 34 is fixedly assembled on the left side of the fixed seat 31. The fixed mold seat 35 is fixedly assembled on the right end of the guide rod 32. The movable mold seat 34 is slidably assembled on the guide rod 32, and the movable mold seat 34 is located between the fixed seat 31 and the fixed mold seat 35. The movable mold seat 34 and the fixed mold seat 35 are opposite to each other. The side is provided with a cavity for injection molding of plastic parts; wherein The piston rod on the mold-closing hydraulic cylinder 33 passes through the fixed seat 31 and is fixedly connected to the movable mold seat 34. A limit frame 311 is fixedly installed on the side of the fixed seat 31 opposite to the movable mold seat 34 to limit the movement of the movable mold seat 34; by controlling the control box 12, the mold-closing hydraulic cylinder 33 is driven to generate kinetic energy and start running, and the piston rod is used to push the movable mold seat 34 on the guide rod 32 and move toward the fixed mold seat 35. Based on the thrust of the mold-closing hydraulic cylinder 33, the movable mold seat 34 and the movable mold seat 34 are combined with each other to form a mold-closing state.

[0063] See also Figures 3 to 4 The movable mold base 34 is fixedly equipped with four symmetrically arranged positioning pins 341 on one side opposite to the fixed mold base 35, and the fixed mold base 35 is provided with positioning grooves 351 corresponding to the positioning pins 341 on one side opposite to the movable mold base 34; during the process of closing the mold between the movable mold base 34 and the fixed mold base 35, the positioning pins 341 are inserted into the positioning grooves 351 to ensure the accuracy of closing the mold between the movable mold base 34 and the fixed mold base 35.

[0064] See also Figures 5 to 6 The locking block 42 is also provided with an extrusion plate 422 inside, and the extrusion plate 422 is located on one side of the cleaning air bag 60. A one-way air inlet valve 61 is fixedly mounted on the inner wall of the locking block 42, and one end of the one-way air inlet valve 61 is fixedly connected to the cleaning air bag 60; the cleaning air bag 60 is squeezed by the extrusion plate 422, and the gas in the cleaning air bag 60 is driven to be transmitted to the jet seat 91 along the vent pipe 93, and then the cleaning air flow is sprayed toward the parting surface of the movable mold seat 34 and the fixed mold seat 35 through the sweeping ball 941, so that the debris on the parting surface of the movable mold seat 34 and the fixed mold seat 35 can be efficiently and accurately cleaned, and at the same time, the one-way air inlet valve 61 can be automatically inflated when the cleaning air bag 60 is reset.

[0065] See also Figures 5 to 6 , Figure 10The jet mechanism 90 includes a jet seat 91 movably assembled on the locking block 42, an elastic corrugated rubber ring 92 is fixedly connected between the jet seat 91 and the locking block 42, and a vent pipe 93 is fixedly installed on one side of the jet seat 91. The end of the vent pipe 93 away from the jet seat 91 passes through the elastic corrugated rubber ring 92 and is fixedly connected to the cleaning air bag 60. By setting the elastic corrugated rubber ring 92, when the locking movable block 41 contacts the locking block 42, the jet seat 91 can be automatically compressed toward the inside of the locking block 42, which will not affect the combination of the locking movable block 41 and the locking block 42. The vent pipe 93 is set to rubber material; the jet mechanism 90 also includes a movably assembled The sweeping assembly 94 and the knocking assembly 95 on the jet seat 91 can be knocked by blowing the knocking assembly 95 with a clean airflow, so that the sweeping assembly 94 can be rotated at an angle and the debris on the parting surface of the movable mold seat 34 and the fixed mold seat 35 can be blown away; the gas in the cleaning air bag 60 is transmitted to the jet seat 91 along the vent pipe 93, and then the clean airflow is sprayed toward the parting surface of the movable mold seat 34 and the fixed mold seat 35 through the sweeping ball 941, so that the debris on the parting surface of the movable mold seat 34 and the fixed mold seat 35 can be cleaned efficiently and accurately, ensuring that the parting surface of the movable mold seat 34 and the fixed mold seat 35 is clean and free of impurities, thereby reducing insufficient clamping force caused by residual debris.

[0066] See also Figures 10 to 11 The sweeping assembly 94 includes a sweeping ball 941, which is rotatably mounted with the jet seat 91 through a movable pin 942, and an air vent 943 for the clean air flow is provided inside the sweeping ball 941; the sweeping ball 941 is provided with a clean air flow ventilation port; the clean air flow can be guided by the arrangement of the sweeping ball 941, and the debris on the parting surface of the movable mold seat 34 and the fixed mold seat 35 can be effectively and accurately cleaned.

[0067] See also Figures 10 to 11 The knocking assembly 95 includes a movable shaft 951 fixedly assembled in the jet seat 91, a movable sleeve 952 is movably mounted on the movable shaft 951, and two symmetrically arranged knocking plates 953 are fixedly mounted on the movable sleeve 952. The two knocking plates 953 are both provided with knocking pieces 954 for knocking the sweeping ball 941, and the knocking plates 953 and the knocking pieces 954 are both located in the vent 943. Fixed plates 955 are fixedly mounted on the movable shaft 951 and at both ends of the movable sleeve 952. The fixed plates 955 An elastic layer 956 is fixedly connected to the knocking plate 953; the force based on the flow of air will blow the knocking plate 953, causing it to vibrate up and down, and while the knocking plate 953 is shaking, it will drive the knocking piece 954 to knock on the sweeping ball 941, so that the sweeping ball 941 is adjusted in angle under the knocking force of the knocking piece 954, and forms a sweeping shape at an up and down angle, thereby increasing the sweeping angle and blowing area of ​​the parting surface of the movable mold base 34 and the fixed mold base 35.

[0068] Please refer to Figures 5 to 7 , the positioning component 50 includes a positioning shell 51 fixedly assembled on the inner wall of the locking fixed block 42. A second electromagnet 52 and a movable plate 53 are arranged inside the positioning shell 51, and the movable plate 53 is made of a metal material that can be attracted to the second electromagnet 52. A positioning block 54 is slidably installed on one side wall of the positioning shell 51. One end of the positioning block 54 extends into the positioning shell 51 and is fixedly connected to the movable plate 53. A positioning spring 55 is fixedly connected between the side of the movable plate 53 opposite to the positioning block 54 and the inner wall of the positioning shell 51; wherein, a locking slot 4111 matching the positioning block 54 is formed on the locking block 411; as the locking movable block 41 and the locking fixed block 42 are in mutual contact and fit, and at the same time the positioning block 54 and the locking slot 4111 on the locking block 411 are just in a parallel position, the elastic force of the positioning spring 55 drives the positioning block 54 to insert into the locking slot 4111 of the locking block 411, thereby realizing the self-locking of the locking block 411, and further strengthening the clamping force when the moving mold base 34 and the fixed mold base 35 are clamped together.

[0069] Please refer to Figures 5 to 9 , the reset component 80 includes a reset shell 81 fixedly assembled in the locking fixed block 42. A movable block 82 is movably installed inside the reset shell 81. A reset rod 83 is fixedly installed on one side of the movable block 82. One end of the reset rod 83 away from the movable block 82 extends outside the reset shell 81 and is fixedly connected to the pressing plate 422. A reset spring 84 is fixedly connected between the other side of the movable block 82 and the inner wall of the reset shell 81; wherein, the reset component 80 further includes a first induction sheet 85 and a second induction sheet 86. The first induction sheet 85 is fixedly assembled on the movable block 82, and the second induction sheet 86 is fixedly assembled on the inner wall of the reset shell 81. The first induction sheet 85 and the second induction sheet 86 are electrically connected to the second electromagnet 52; since one end of the reset rod 83 is fixedly connected to the pressing plate 422, when the pressing plate 422 moves, it pulls the reset rod 83 to move synchronously, and then drives the first induction sheet 85 and the second induction sheet 86 to be in contact and emit an electrical signal. Through the control of the program, the first electromagnet 70 is driven to be energized to generate magnetism, and the fixed iron sheet 412 is firmly attracted by the magnetic force after the first electromagnet 70 is energized, so that the locking movable block 41 and the locking fixed block 42 are firmly adsorbed together, and further ensure the clamping force of the moving mold base 34 and the fixed mold base 35.

[0070] The specific usage mode and function of this embodiment are as follows:

[0071] Working principle: When in use, the staff controls the control box 12 to drive the mold clamping hydraulic cylinder 33 to generate kinetic energy and start running, and uses the piston rod to push the movable mold base 34 on the guide rod 32 and move toward the fixed mold base 35. Based on the thrust of the mold clamping hydraulic cylinder 33, the movable mold base 34 and the movable mold base 34 are combined with each other and form a mold clamping state; in addition, during the movement of the movable mold base 34, one of the locking movable blocks 41 and the locking fixed block 42 will be driven to move, and the locking block 411 will be inserted into the locking groove 421. As the locking block 411 continues to move, the extrusion plate 422 is pushed at the same time, and the extrusion plate 422 is used to squeeze the cleaning air bag 60, driving the gas in the cleaning air bag 60 to be transmitted along the ventilation pipe 93 to the jet seat 91, and then the cleaning airflow is directed toward the movable mold base 3 through the sweeping ball 941. 4 and the parting surface of the fixed mold seat 35, so that the debris on the parting surface of the movable mold seat 34 and the fixed mold seat 35 can be cleaned efficiently and accurately, ensuring that the parting surface of the movable mold seat 34 and the fixed mold seat 35 is clean and free of impurities, reducing the insufficient clamping force caused by the residue of debris; in addition, during the flow of the airflow, the force of the airflow will blow the knocking plate 953, so that it will produce an up and down shaking frequency, and the knocking plate 953 will drive the knocking piece 954 to knock the sweeping ball 941 while shaking, so that the sweeping ball 941 is adjusted in angle under the knocking force of the knocking piece 954, and forms a sweeping shape with an up and down angle, so that the sweeping angle and the blowing area of ​​the parting surface of the movable mold seat 34 and the fixed mold seat 35 can be increased, and the cleaning effect of the parting surface of the movable mold seat 34 and the fixed mold seat 35 can be further improved;

[0072] When the locking block 411 on the locking moving block 41 moves to a certain position in the locking groove 421 of the locking fixed block 42, at this time, the locking moving block 41 and the locking fixed block 42 are in mutual contact, and at the same time, the positioning block 54 and the locking slot 4111 on the locking block 411 are just in a parallel position. Based on the elastic force of the positioning spring 55, the positioning block 54 is driven to insert into the locking slot 4111 of the locking block 411, thereby realizing the self-locking of the locking block 411, and further strengthening the clamping force when the moving die base 34 and the fixed die base 35 are clamped; at the same time, since one end of the reset rod 83 is fixedly connected to the pressing plate 422, when the pressing plate 422 moves, it pulls the reset rod 83 to move synchronously, and further drives the first sensing piece 85 and the second sensing piece 86 to be in contact with each other and emit an electrical signal. Through the control of the program, the first electromagnet 70 is driven to be energized to generate magnetism, and the fixed iron sheet 412 is firmly attracted by the magnetic force after the first electromagnet 70 is energized, so that the locking moving block 41 and the locking fixed block 42 are firmly adsorbed together, and further ensure the clamping force of the moving die base 34 and the fixed die base 35; and through this setting, during the mold clamping process, the moving die base 34 and the fixed die base 35 generate a strong self-locking force at the moment of contact. This design not only effectively prevents the increase of the mold gap caused by the injection pressure, but also significantly improves the locking stability and injection molding accuracy of the mold, ensures the high-quality production of complex automotive plastic parts. At the same time, this setting can quickly reach and maintain a clamping force level higher than that of traditional injection molding machines during the mold clamping stage. By precisely controlling the mold clamping speed and pressure, it ensures that the mold remains stable and does not shake during high-pressure injection, effectively avoiding the phenomena of overflow and burrs on the injection molded parts, and further improving the product quality and production efficiency;

[0073] Finally, through the control of the program, the injection molding mechanism 20 is driven to inject plastic into the cavities in the moving die base 34 and the fixed die base 35 to realize the injection molding production of automotive plastic parts. After the product is molded, the first electromagnet 70 is powered off through the control of the program, and at the same time, the second electromagnet 52 is powered on. The magnetic force after the second electromagnet 52 is powered on is used to adsorb the movable plate 53. When the movable plate 53 moves, it drives the positioning block 54 to move synchronously, and pulls the positioning block 54 to separate from the locking slot 4111 on the locking block 411, realizing the unlocking of the locking block 411. Then, the piston rod on the mold clamping hydraulic cylinder 33 drives the moving die base 34 and the fixed die base 35 to separate from each other, realizing the unloading of the automotive plastic parts. At the same time, the unloading slideway 13 is used to guide and collect the unloaded automotive plastic parts.

[0074] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An injection molding device for injection molding a molded part having a molding structure, comprising a machine base (10), an injection molding mechanism (20) and a clamping assembly (30) arranged on the machine base (10), wherein the clamping assembly (30) is located on the left side of the injection molding mechanism (20), characterized in that: It also includes two locking mechanisms (40) arranged on the mold clamping assembly (30); The mold clamping assembly (30) comprises a movable mold base (34) and a fixed mold base (35); the locking mechanism (40) comprises a locking movable block (41) and a locking fixed block (42); the movable mold base (34) and the fixed mold base (35) are both provided with a locking movable block (41) and a locking fixed block (42); when the movable mold base (34) and the fixed mold base (35) are molded together, the locking movable block (41) and the locking fixed block (42) are combined to apply a locking force to the movable mold base (34) and the fixed mold base (35); A locking block (411) is fixedly installed on one side of the locking movable block (41) opposite to the locking fixed block (42), and a fixing iron sheet (412) is fixedly embedded on the locking movable block (41), a locking groove (421) for inserting the locking block (411) is provided on the locking fixed block (42), a positioning component (50) for locking the locking block (411) is provided inside the locking fixed block (42), and the positioning component (50) is arranged on the inner side wall of the locking groove (421); The locking block (42) is also provided with a cleaning air bag (60), a first electromagnet (70), a reset assembly (80) and an air jet mechanism (90) inside. The locking block (411) is inserted into the locking groove (421), and the first electromagnet (70) is synchronously driven to be energized to attract the fixed iron sheet (412), and the airflow in the cleaning air bag (60) is transported to the air jet mechanism (90). The airflow ejected by the air jet mechanism (90) can be used to blow away the debris on the parting surface of the movable mold base (34) and the fixed mold base (35), thereby completing automatic cleaning. The jet mechanism (90) comprises a jet seat (91) movably mounted on a locking block (42); an elastic corrugated rubber ring (92) is fixedly connected between the jet seat (91) and the locking block (42); a vent pipe (93) is fixedly mounted on one side of the jet seat (91); an end of the vent pipe (93) away from the jet seat (91) passes through the elastic corrugated rubber ring (92) and is fixedly connected to the cleaning air bag (60); and the vent pipe (93) is made of rubber material; The jet mechanism (90) further comprises a sweeping assembly (94) and a knocking assembly (95) movably mounted on the jet seat (91); the sweeping assembly (94) is knocked by blowing the knocking assembly (95) with a clean airflow, so that the sweeping assembly (94) can be rotated at an angle and debris on the parting surface of the movable die seat (34) and the fixed die seat (35) can be blown away; The sweeping assembly (94) comprises a sweeping ball (941), the sweeping ball (941) is rotatably mounted with the jet seat (91) via a movable pin (942), and a vent (943) for ventilating the clean air flow is provided inside the sweeping ball (941); The knocking assembly (95) comprises a movable shaft (951) fixedly assembled in the jet seat (91), a movable sleeve (952) movably mounted on the movable shaft (951), two symmetrically arranged knocking plates (953) fixedly mounted on the movable sleeve (952), knocking pieces (954) for knocking the sweeping ball (941) are arranged on the two knocking plates (953), and the knocking plates (953) and the knocking pieces (954) are both located in the vent (943), fixed plates (955) are fixedly mounted on the movable shaft (951) and at both ends of the movable sleeve (952), and an elastic layer (956) is fixedly connected between the fixed plates (955) and the knocking plates (953).

2. The device for molding a molded part with a shaping structure according to claim 1, characterized in that: The clamping assembly (30) further comprises a fixed seat (31) fixedly mounted on the machine base (10), four symmetrically mounted guide rods (32) being fixedly mounted on the fixed seat (31), a clamping hydraulic cylinder (33) for driving a movable die seat (34) being fixedly mounted on the left side of the fixed seat (31), the fixed die seat (35) being fixedly mounted on the right end of the guide rod (32), the movable die seat (34) being slidably mounted on the guide rod (32), and the movable die seat (34) being located between the fixed seat (31) and the fixed die seat (35), and a cavity for injection molding of plastic parts being provided on a side opposite to the fixed die seat (35); The piston rod on the mold clamping hydraulic cylinder (33) passes through the fixed seat (31) and is fixedly connected to the movable mold seat (34); a limit frame (311) for limiting the movement of the movable mold seat (34) is fixedly installed on one side of the fixed seat (31) opposite to the movable mold seat (34).

3. The device for molding a molded part with a shaping structure according to claim 1, characterized in that: Four symmetrically arranged positioning pins (341) are fixedly mounted on one side of the movable mold base (34) opposite to the fixed mold base (35), and positioning grooves (351) corresponding to the positioning pins (341) are provided on one side of the fixed mold base (35) opposite to the movable mold base (34).

4. The device for molding a molded part with a shaping structure according to claim 1, characterized in that: The positioning assembly (50) comprises a positioning shell (51) fixedly mounted on the inner wall of the locking block (42); a second electromagnet (52) and a movable plate (53) are arranged inside the positioning shell (51); the movable plate (53) is arranged to be a metal material that can attract the second electromagnet (52); a positioning block (54) is slidably mounted on one side wall of the positioning shell (51); one end of the positioning block (54) extends into the interior of the positioning shell (51) and is fixedly connected to the movable plate (53); a positioning spring (55) is fixedly connected between the side of the movable plate (53) opposite to the positioning block (54) and the inner wall of the positioning shell (51); The locking block (411) is provided with a locking slot (4111) matching the positioning block (54).

5. The device for molding a molded part with a shaping structure according to claim 1, characterized in that: An extrusion plate (422) is also provided inside the locking block (42), and the extrusion plate (422) is located on one side of the cleaning air bag (60). A one-way air intake valve (61) is fixedly mounted on the inner wall of the locking block (42), and one end of the one-way air intake valve (61) is fixedly connected to the cleaning air bag (60).

6. The device for molding a molded part with a shaping structure according to claim 4 or 5, characterized in that: The reset assembly (80) comprises a reset shell (81) fixedly assembled in the locking block (42); a movable block (82) is movably installed inside the reset shell (81); a reset rod (83) is fixedly installed on one side of the movable block (82); one end of the reset rod (83) away from the movable block (82) extends to the outside of the reset shell (81) and is fixedly connected to the extrusion plate (422); a reset spring (84) is fixedly connected between the other side of the movable block (82) and the inner wall of the reset shell (81); The reset assembly (80) further comprises a first sensing sheet (85) and a second sensing sheet (86), wherein the first sensing sheet (85) is fixedly mounted on the movable block (82), and the second sensing sheet (86) is fixedly mounted on the inner wall of the reset shell (81), and the first sensing sheet (85) and the second sensing sheet (86) are electrically connected to the second electromagnet (52).

7. The device for molding a molded part with a shaping structure according to claim 1, characterized in that: A protective cover (11) is fixedly mounted on the upper side of the machine base (10) and located on the outer periphery of the clamping assembly (30). A control box (12) for operating the equipment is arranged on the machine base (10). A discharge slide (13) for discharging the molded plastic parts is arranged on the machine base (10), and the discharge slide (13) is located at the bottom of the movable mold base (34) and the fixed mold base (35).

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