Injection molding part injection molding device with shaping structure

Abstract

The invention relates to the technical field of injection molding, and discloses an injection molding part injection molding device with a shaping structure, which comprises a machine base, an injection molding mechanism arranged on the machine base, a mold closing assembly located on the left side of the injection molding mechanism, and two locking mechanisms arranged on the mold closing assembly, the mold closing assembly comprises a movable mold base and a fixed mold base, and the locking mechanism comprises a locking movable block and a locking fixed block. According to the injection molding part injection molding device with the shaping structure, in the mold closing process of the injection molding part injection molding device, powerful self-locking force is generated at the moment that the movable mold base makes contact with the fixed mold base, and due to the design, the situation that a mold gap is enlarged due to injection molding pressure is effectively prevented, and the locking stability and the injection molding precision of a mold are remarkably improved; high-quality production of complex automobile plastic parts is guaranteed, meanwhile, it can be guaranteed that the mold is still stable and does not shake during high-pressure injection, the phenomena of material overflowing and burrs of the injection molded parts are effectively avoided, and the product quality and the production efficiency are further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molding, and in particular relates to an injection molding device for injection molded parts with a shaping structure. Background Art

[0002] A car contains a large number of parts, some of which are made of metal materials, including engines and gearboxes, and some are made of plastic materials, including dashboards, center consoles, etc. The components made of plastic materials are usually made by injection molding during the preparation process. Plastics have been widely used in the automotive industry due to their advantages such as light weight, corrosion resistance, and easy processing and molding. Plastic parts have become an important part of automobiles.

[0003] At present, in the existing automotive plastic parts injection molding equipment, since the traditional injection molding machine cannot provide stable and sufficient clamping force to meet the needs of high-pressure injection molding, it is easy to cause the mold to fail to close tightly during the injection molding process, resulting in the overflow of plastic melt at the mold parting surface, forming burrs, and then causing burr problems on plastic parts. The presence of burrs not only affects the overall appearance of plastic parts, but may also pose a potential threat to their functionality and safety of use, such as affecting assembly accuracy, increasing friction and wear, etc.; therefore, there are deficiencies and cannot meet the production and use needs of manufacturers. Therefore, it is necessary to further improve.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an injection molding device with an injection molding structure is provided, in order to achieve a more practical purpose. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an injection molding device with a plastic molding structure, which is achieved by the following specific technical means: An injection molding device for injection molding parts with a shaping structure comprises a machine base, an injection molding mechanism and a clamping assembly arranged on the machine base, wherein the clamping assembly is located on the left side of the injection molding mechanism, and further comprises two locking mechanisms arranged on the clamping assembly; The mold clamping assembly includes a movable mold base and a fixed mold base, and the locking mechanism includes a locking movable block and a locking fixed block. The movable mold base and the fixed mold base are both provided with a locking movable block and a locking fixed block. When the movable mold base and the fixed mold base are molded together, the locking movable block and the locking fixed block are combined to apply a locking force to the movable mold base and the fixed mold base; The locking movable block is fixedly mounted with a locking block on one side of the locking fixed block, and a fixing iron sheet is fixedly embedded on the locking movable block. A locking groove for inserting the locking block is provided on the locking fixed block. A positioning component for locking the locking block is provided inside the locking fixed block, and the positioning component is provided on the inner side wall of the locking groove. A cleaning air bag, a first electromagnet, a reset assembly and an air jet mechanism are also provided inside the locking block. The locking block is inserted into the locking groove, and the first electromagnet is synchronously driven to be energized to attract the fixed iron sheet. At the same time, the airflow in the cleaning air bag is transported to the air jet mechanism, and the airflow ejected by the air jet mechanism can be used to blow away the debris on the parting surfaces of the movable mold seat and the fixed mold seat to complete automatic cleaning.

[0006] As a further description of the above technical solution: through this arrangement, during the mold closing process, the movable mold base and the fixed mold base generate a strong self-locking force at the moment of contact. This design not only effectively prevents the increase of the mold gap due to 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, it can ensure that the mold remains 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.

[0007] Further, the clamping assembly also includes a fixed seat fixedly mounted on the machine base, four symmetrically mounted guide rods are fixedly mounted on the fixed seat, a clamping hydraulic cylinder for driving the movable die seat is fixedly mounted on the left side of the fixed seat, the fixed die seat is fixedly mounted on the right end of the guide rod, the movable die seat is slidably mounted on the guide rod, and the movable die seat is located between the fixed seat and the fixed die seat, and a cavity for injection molding of plastic parts is opened on a side opposite to the fixed die seat; Wherein, the piston rod on the mold clamping hydraulic cylinder passes through the fixed seat and is fixedly connected to the movable mold seat, and a limiting frame for limiting the movement of the movable mold seat is fixedly installed on one side of the fixed seat opposite to the movable mold seat.

[0008] As a further description of the above technical solution: the mold closing hydraulic cylinder drives the piston rod to push the movable mold base on the guide rod and move toward the fixed mold base. Based on the thrust of the mold closing hydraulic cylinder, the movable mold base and the movable mold base are combined with each other to form a mold closing state.

[0009] Furthermore, four symmetrically arranged positioning pins are fixedly mounted on one side of the movable mold base opposite to the fixed mold base, and positioning grooves corresponding to the positioning pins are formed on one side of the fixed mold base opposite to the movable mold base.

[0010] As a further description of the above technical solution: the accuracy of the mold closing between the movable mold base and the fixed mold base can be ensured by inserting the positioning pin into the positioning groove.

[0011] Further, the positioning assembly includes a positioning shell fixedly mounted on the inner wall of the locking block, a second electromagnet and a movable plate are arranged inside the positioning shell, and the movable plate is arranged to be a metal material that can be attracted to the second electromagnet, a positioning block is slidably mounted on one side wall of the positioning shell, one end of the positioning block extends to the inside of the positioning shell and is fixedly connected to the movable plate, and a positioning spring is fixedly connected between the side of the movable plate opposite to the positioning block and the inner wall of the positioning shell; Wherein, the locking block is provided with a locking slot matching the positioning block.

[0012] As a further description of the above technical solution: this arrangement can realize self-locking of the locking block, thereby strengthening the clamping force when the movable mold base and the fixed mold base are closed.

[0013] Furthermore, an extrusion plate is provided inside the locking block, and the extrusion plate is located on one side of the cleaning airbag. A one-way air intake valve is fixedly mounted on the inner wall of the locking block, and one end of the one-way air intake valve is fixedly connected to the cleaning airbag.

[0014] As a further description of the above technical solution: through this setting, the debris on the parting surface of the movable mold seat and the fixed mold seat can be cleaned efficiently and accurately, and at the same time, the one-way air inlet valve can be set to automatically inflate when the cleaning air bag is reset.

[0015] Furthermore, the reset assembly includes a reset shell fixedly assembled in the locking block, a movable block is movably installed inside the reset shell, a reset rod is fixedly installed on one side of the movable block, one end of the reset rod away from the movable block extends to the outside of the reset shell and is fixedly connected to the extrusion plate, and a reset spring is fixedly connected between the other side of the movable block and the inner wall of the reset shell; The reset assembly further comprises a first induction sheet and a second induction sheet, wherein the first induction sheet is fixedly mounted on the movable block, and the second induction sheet is fixedly mounted 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.

[0016] As a further description of the above technical solution: the fixed iron sheet is firmly sucked by the magnetic force after the first electromagnet is energized, so that the locking movable block and the locking fixed block are firmly adsorbed together, thereby ensuring the locking force of the movable mold seat and the fixed mold seat.

[0017] Furthermore, the jet mechanism includes a jet seat movably mounted on the locking block, an elastic corrugated rubber ring is fixedly connected between the jet seat and the locking block, a vent pipe is fixedly installed on one side of the jet seat, an end of the vent pipe away from the jet seat passes through the elastic corrugated rubber ring and is fixedly connected to the cleaning air bag, and the vent pipe is set to a rubber material; The jet mechanism also includes a sweeping component and a knocking component movably assembled on the jet seat. The sweeping component is knocked by blowing the knocking component with a clean airflow, so that the sweeping component can be rotated at an angle and the debris on the parting surface of the movable mold seat and the fixed mold seat can be blown away.

[0018] As a further description of the above technical solution: Through this arrangement, 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, reducing insufficient clamping force caused by residual debris.

[0019] Furthermore, the sweeping assembly includes a sweeping ball, which is rotatably mounted with the jet seat via a movable pin, and an air vent for the clean air flow is provided inside the sweeping ball.

[0020] As a further description of the above technical solution: the setting of the sweeping ball can guide the clean airflow and effectively clean the debris on the parting surface of the movable mold seat and the fixed mold seat efficiently and accurately.

[0021] Furthermore, the knocking assembly includes a movable shaft fixedly assembled in the jet seat, a movable sleeve movably mounted on the movable shaft, two symmetrically arranged knocking plates fixedly mounted on the movable sleeve, both knocking plates are provided with knocking pieces for knocking the sweeping ball, and the knocking plates and the knocking pieces are both located in the vent, fixed plates are fixedly mounted on the movable shaft and at both ends of the movable sleeve, and an elastic layer is fixedly connected between the fixed plate and the knocking plate.

[0022] As a further description of the above technical solution: through this setting, the sweeping ball can be adjusted in angle under the striking force of the striking piece, and form a sweeping shape with upper and lower angles, thereby increasing the sweeping angle and 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.

[0023] Furthermore, a protective cover is fixedly installed on the upper side of the machine base and on the outer periphery of the clamping assembly for protection, a control box for operating the equipment is arranged on the machine base, a unloading chute for unloading the molded plastic parts is arranged on the machine base, and the unloading chute is located at the bottom of the movable mold base and the fixed mold base.

[0024] As a further description of the above technical solution: the device can be easily controlled by setting up a control chassis, and the unloading chute is used to guide and collect the unloaded automobile plastic parts.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 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.

[0026] 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.

[0027] 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

[0028] 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.

[0029] Figure 1 It shows a schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 The overall structure diagram of the mold clamping assembly provided according to an embodiment of the present invention is shown; Figure 3A schematic diagram of the structure of a movable mold base according to an embodiment of the present invention is shown; Figure 4 It shows a schematic structural diagram of a fixed mold base provided according to an embodiment of the present invention; 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; Figure 6 A schematic diagram of a local structure of a locking block provided according to an embodiment of the present invention is shown; Figure 7 A schematic diagram of a local structure of a positioning component provided according to an embodiment of the present invention is shown; 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; Fig. 9 A partial structural schematic diagram of a reset component provided according to an embodiment of the present invention is shown; Fig.10 A schematic diagram of a local structure of an injection assembly provided according to an embodiment of the present invention is shown; Fig.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.

[0030] Legend: 10. Machine base; 11. Protective cover; 12. Control box; 13. Discharge slide; 20. Injection molding mechanism; 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; 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; 50. Positioning assembly; 51. Positioning shell; 52. Second electromagnet; 53. Movable plate; 54. Positioning block; 55. Positioning spring; 60. Cleaning airbag; 61. One-way air inlet valve; 70. A first electromagnet; 80. reset assembly; 81. reset shell; 82. movable block; 83. reset rod; 84. reset spring; 85. first sensing sheet; 86. second sensing sheet; 90. Jet mechanism; 91. Jet seat; 92. Elastic corrugated rubber ring; 93. Ventilation pipe; 94. Sweeping assembly; 941. Sweeping ball; 942. Movable pin; 943. Ventilation port; 95. Knocking assembly; 951. Movable shaft; 952. Movable sleeve; 953. Knocking plate; 954. Knocking piece; 955. Fixed plate; 956. Elastic layer. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 11The present invention relates to an injection molding device for injection molding parts having a shaped 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, and further comprising two locking mechanisms 40 arranged on the clamping assembly 30; the 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, and the movable mold base 34 and the fixed mold base 35 are both provided with the locking movable block 41 and the locking fixed block 42, and the movable mold base 34 and the fixed mold base 35 are connected to each other by the movable mold base 34 and the fixed mold base When the mold 35 is closed, 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; the locking movable block 41 is fixedly installed with a locking block 411 on one side of the locking fixed block 42, and a fixed iron sheet 412 is fixedly embedded on the locking movable block 41, and a locking groove 421 for inserting the locking block 411 is opened on the locking fixed block 42, and a positioning component 50 for locking the locking block 411 is arranged inside the locking fixed block 42, and the positioning component 50 is arranged on the inner side 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. 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 delivered 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 seat 34 and the fixed mold seat 35 to complete automatic cleaning. Through this arrangement, during the mold closing process, the movable mold The seat 34 and the fixed mold seat 35 generate a strong self-locking force at the moment of contact. This design not only effectively prevents the increase of the mold gap due to 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, this setting can quickly reach and maintain a clamping force level higher than that of traditional injection molding machines during the mold closing stage. By accurately controlling the mold closing speed and pressure, it ensures that the mold remains stable and without shaking during high-pressure injection, effectively avoiding overflow and burrs on the injection molded parts.

[0033] See also Figure 1 A protective cover 11 for protection 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. The control box 12 is arranged to facilitate the control of the equipment. At the same time, the piston rod on the clamping hydraulic cylinder 33 is used to drive the movable mold base 34 and the fixed mold base 35 to separate from each other, so as to realize the discharge of the automobile plastic parts. At the same time, the discharge slide 13 is used to guide and collect the unloaded automobile plastic parts.

[0034] See also 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.

[0035] See also Figure 3 to Figure 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.

[0036] See also Figures 5 and 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.

[0037] See also Figures 5 and 6 , Fig.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.

[0038] See also Figure 10 to Figure 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.

[0039] See also Figure 10 to Figure 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.

[0040] See also Figures 5 to 7 The positioning assembly 50 includes 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, and the movable plate 53 is arranged to be a metal material that can be attracted to 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 to the inside of the positioning shell 51 and is fixedly connected to the movable plate 53, and a positioning spring 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 55; wherein, a locking slot 4111 matching with the positioning block 54 is provided on the locking block 411; as the locking movable block 41 and the locking fixed block 42 are in contact with each other, and the positioning block 54 and the locking slot 4111 on the locking block 411 are just in parallel position, the positioning block 54 is driven to be inserted into the locking slot 4111 of the locking block 411 based on the elastic force of the positioning spring 55, thereby realizing the self-locking of the locking block 411, and further strengthening the clamping force when the movable mold base 34 and the fixed mold base 35 are closed.

[0041] See also Figures 5 to 9 The reset assembly 80 includes 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, and 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 assembly 80 also 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 The 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 extrusion plate 422, the extrusion plate 422 moves and pulls the reset rod 83 to move synchronously, thereby driving the first induction sheet 85 and the second induction sheet 86 to fit and contact and send out an electrical signal. The first electromagnet 70 is driven to be energized to generate magnetism through program control, and the magnetic force of the first electromagnet 70 after being energized is used to firmly absorb the fixed iron sheet 412, so that the locking movable block 41 and the locking fixed block 42 are firmly adsorbed together, thereby ensuring the locking force of the movable mold base 34 and the fixed mold base 35.

[0042] The specific usage and function of this embodiment are as follows: 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; When the locking block 411 on the locking movable block 41 moves to a certain position in the locking groove 421 of the locking fixed block 42, at this time, the locking movable block 41 and the locking fixed block 42 are in contact with each other, and the positioning block 54 and the locking groove 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 groove 4111 of the locking block 411, thereby realizing self-locking of the locking block 411, and then strengthening the clamping force when the movable mold base 34 and the fixed mold base 35 are closed; at the same time, since one end of the reset rod 83 is fixedly connected to the extrusion plate 422, the extrusion plate 422 moves and the reset rod 83 is pulled to move synchronously, thereby driving the first induction plate 85 to contact with the second induction plate 86 and send out an electrical signal, and the first electromagnet 70 is driven to generate a magnetic field through program control. The first electromagnet 70 is energized to firmly attract the fixed iron sheet 412, so that the locking movable block 41 and the locking fixed block 42 are firmly adsorbed together, thereby ensuring the clamping force of the movable mold base 34 and the fixed mold base 35; and through this arrangement, during the mold closing process, the movable mold base 34 and the fixed mold 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 of the mold and the injection molding accuracy, ensuring the high-quality production of complex automotive plastic parts. At the same time, this arrangement 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. Finally, the injection molding mechanism 20 is driven by program control to inject into the cavities in the movable mold base 34 and the fixed mold base 35 to realize the injection molding production of automobile plastic parts. After the product is formed, the first electromagnet 70 is powered off by program control, and the second electromagnet 52 is powered on at the same time, so that the magnetic force of the second electromagnet 52 after being powered on is driven to adsorb the movable plate 53, and the movable plate 53 moves while driving the positioning block 54 to move synchronously, and pulls the positioning block 54 and the locking groove 4111 on the locking block 411 to separate from each other, so as to unlock the locking block 411, and then the piston rod on the mold closing hydraulic cylinder 33 drives the movable mold base 34 and the fixed mold base 35 to separate from each other, so as to realize the unloading of automobile plastic parts, and at the same time, the unloading slide 13 is used to guide and collect the unloaded automobile plastic parts.

[0043] 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 implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An injection molding device for injection molded parts 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), and is 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 clamping force to the movable mold base (34) and the fixed mold base (35); A locking block (411) is fixedly mounted 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 further 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 debris on the parting surfaces of the movable mold base (34) and the fixed mold base (35), thereby completing automatic cleaning.

2. The device for molding a molded part with a shaping structure according to claim 1, characterized in that: The mold clamping assembly (30) further comprises a fixed seat (31) fixedly mounted on the machine base (10), four symmetrically mounted guide rods (32) fixedly mounted on the fixed seat (31), a mold clamping hydraulic cylinder (33) for driving a movable mold seat (34) fixedly mounted on the left side of the fixed seat (31), the fixed mold seat (35) fixedly mounted on the right end of the guide rod (32), the movable mold seat (34) slidably mounted on the guide rod (32), and the movable mold seat (34) is located between the fixed seat (31) and the fixed mold seat (35), and a cavity for injection molding of plastic parts is provided on a side of the movable mold seat (34) opposite to the fixed mold 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 formed 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 a 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) that matches 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 further 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 mounted inside the reset shell (81); a reset rod (83) is fixedly mounted on one side of the movable block (82); an 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); the first sensing sheet (85) is fixedly mounted on the movable block (82); 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: The jet mechanism (90) comprises a jet seat (91) movably mounted on the 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 surfaces of the movable mold seat (34) and the fixed mold seat (35) can be blown away.

8. The device for molding a molded part with a shaping structure according to claim 7, characterized in that: The sweeping assembly (94) comprises a sweeping ball (941), the sweeping ball (941) being rotatably mounted on the air jet seat (91) via a movable pin shaft (942), and a vent (943) for the clean air flow is provided inside the sweeping ball (941).

9. The device for molding a molded part with a shaping structure according to claim 8, characterized in that: The knocking assembly (95) comprises a movable shaft (951) fixedly assembled in the jet seat (91); a movable sleeve (952) is movably mounted on the movable shaft (951); two symmetrically arranged knocking plates (953) are fixedly mounted on the movable sleeve (952); knocking pieces (954) for knocking the sweeping ball (941) are arranged on the two knocking plates (953); 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).

10. 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 cabinet (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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