Fixed mold assembly and injection mold

Abstract

The utility model discloses a fixed mold assembly and an injection mold. The fixed mold assembly comprises a fixed mold, a demolding part and a driving part. The fixed mold is provided with a fixed mold cavity; the demolding part is located in the fixed mold cavity, the shape of the demolding part is consistent with the shape of the cross section of the fixed mold cavity, the demolding part is provided with a through hole communicated with the fixed mold cavity, and the through hole is used for being communicated with an injection molding hole; and the driving part is used for driving the demolding part to reciprocate along the axis direction of the fixed mold cavity. The demolding structure is arranged on the fixed mold assembly, so that an injection product adhered to a fixed mold can be conveniently demolded.

Description

Technical Field

[0001] The present application relates to the technical field of injection molds, and in particular to a fixed mold assembly and an injection mold. Background Art

[0002] The injection mold includes a fixed mold and a movable mold. The movable mold can be moved closer to or away from the fixed mold to switch between the mold closing position and the mold opening position. During injection molding, the movable mold is in the mold closing position, and the movable mold cavity of the movable mold cooperates with the fixed mold cavity of the fixed mold to form the mold cavity of the product to be injected. The injection cylinder of the injection mold can inject the molten injection material into the mold cavity. After cooling and shaping, the injection molded product is obtained. Afterwards, the movable mold can move away from the fixed mold to be in the mold opening position to demold the injection molded product.

[0003] It is generally believed that injection molded products will adhere to the movable mold, so a demolding mechanism is installed on the movable mold to release the injection molded product during the mold opening process. However, in actual application, it is found that injection molded products can also adhere to the fixed mold, requiring manual demolding, which is very inconvenient. Utility Model Content

[0004] The purpose of this application is to provide a fixed mold assembly and an injection mold. By arranging a demoulding structure on the fixed mold assembly, the injection molded product adhered to the fixed mold can be easily demoulded.

[0005] In order to solve the above technical problems, an embodiment of the present application provides a fixed mold assembly, including a fixed mold, a demoulding member and a driving component;

[0006] The fixed mold has a fixed mold cavity;

[0007] The demoulding member is located in the fixed mold cavity, the outer shape of the demoulding member is consistent with the cross-sectional shape of the fixed mold cavity, and the demoulding member has a through hole communicating with the fixed mold cavity, and the through hole is used to communicate with the injection hole;

[0008] The driving component is used to drive the demoulding member to move back and forth along the axis direction of the fixed mold cavity.

[0009] In one feasible solution, the driving component includes a first driving source and a first transmission component, and the first driving source is transmission-connected to the demolding member via the first transmission component.

[0010] In one feasible solution, the first transmission component includes a first transmission member, a second transmission member and a connecting member, the second transmission member is threadedly connected to the first transmission member, the connecting member connects the second transmission member and the demolding member, and the first driving source is used to drive the first transmission member to rotate.

[0011] In one feasible solution, the fixed mold assembly includes a mounting plate, the fixed mold is mounted on one side of the mounting plate, the first driving source is mounted on the other side of the mounting plate, the second transmission member is inserted into the mounting plate, the fixed mold includes a slot connected to the fixed mold cavity, and at least part of the connecting member is inserted into the slot; the mounting plate has the injection hole, and the through hole corresponds to the position of the injection hole.

[0012] In one feasible solution, the fixed mold assembly also includes a liquid cooling structure, which includes a liquid pump and a liquid cooling pipeline. The two ends of the liquid cooling pipeline are respectively connected to the inlet and outlet ends of the liquid pump, and at least a portion of the liquid cooling pipeline is located on the periphery of the fixed mold cavity.

[0013] In one feasible solution, the fixed mold assembly further includes an air-cooling structure, which includes a second driving source, a second transmission component and a fan, and the second driving source is connected to the fan through the second transmission component.

[0014] An embodiment of the present application also provides an injection mold, comprising a base frame, a movable mold assembly and a fixed mold assembly, wherein the fixed mold assembly is any one of the fixed mold assemblies described above, and the fixed mold assembly is fixedly mounted on the base frame, and the movable mold of the movable mold assembly can approach or move away from the fixed mold assembly.

[0015] In one feasible solution, a telescopic driving member is mounted on the base frame; the movable mold assembly includes a mounting frame, a movable mold, and a demolding structure, the movable mold is fixed to a first side wall of the mounting frame facing the fixed mold assembly, and a second side wall of the mounting frame facing away from the fixed mold assembly is connected to the telescopic end of the telescopic driving member;

[0016] The demoulding structure includes a sliding rod, a push rod, an elastic member and a stop member, the sliding rod is slidably penetrated through the second side wall, the first end of the sliding rod is fixedly connected to the push rod, the push rod is slidably penetrated through the first side wall, the elastic member is sleeved on the sliding rod, one end of the elastic member is fixedly connected to the push rod, the other end of the elastic member is fixedly connected to the second side wall, the stop member is fixed on the base frame, and the second end of the sliding rod extends out of the second side wall and corresponds to the position of the stop member.

[0017] In a feasible solution, the injection mold includes a feed frame and a loosening structure; the loosening structure includes a third driving source, a third transmission component and a loosening assembly, and the third driving source is connected to the loosening assembly through the third transmission component to drive the loosening assembly to extend into or move out of the feed frame; the loosening assembly includes a fourth driving source, a first spiral blade rod and a cleaning brush, and the fourth driving source is used to drive the first spiral blade rod and the cleaning brush to rotate, and the cleaning brush is used to clean the inner wall of the feed frame.

[0018] In one feasible solution, the injection mold includes an injection cylinder, the injection cylinder is mounted on the base frame, the feed frame is fixed to the top of the injection cylinder, the discharge port of the feed frame is connected to the feed port of the injection cylinder, and the discharge port of the injection cylinder is connected to the fixed mold cavity;

[0019] The injection molding cylinder has a discharge channel on its wall near the base frame. The bottom opening of the discharge channel is detachably connected to a blocking piece. A second spiral blade rod is rotatably inserted into the blocking piece. The spiral blade of the second spiral blade rod is located in the discharge channel.

[0020] In one feasible solution, the base frame has a blanking port, which is located between the fixed mold assembly and the movable mold assembly; the injection mold includes a collection box, which is detachably installed at the bottom of the blanking port, and a push plate is provided in the collection box, which can slide in a direction perpendicular to the blanking direction.

[0021] In a feasible solution, a frustum frame is fixedly connected to the bottom of the drop opening, and the frustum frame is located in the collection box.

[0022] The fixed mold assembly provided in the embodiments of the present application is used for an injection mold. In actual application, during injection molding, the demolding member is moved to the end of the fixed mold cavity away from the movable mold by the driving member of the fixed mold assembly. The molten injection material will not affect the appearance of the fastening structure after injection. When the injection molding is completed and the mold is released, if the injection molded product adheres to the fixed mold, the demolding member can be driven by the driving member to move along the axis of the fixed mold cavity toward the direction where the movable mold assembly is located, thereby pushing the injection molded product adhered to the fixed mold cavity out of the fixed mold and demolding the injection molded product on the fixed mold. The fixed mold assembly can conveniently and reliably demold the injection molded product adhered to the fixed mold cavity without manual processing, thereby improving the convenience and reliability of demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of an injection mold provided in an embodiment of the present application;

[0024] Figure 2 for Figure 1 Schematic diagram of the structure of the middle fixed mold assembly;

[0025] Figure 3 for Figure 2 A schematic diagram of the partial structure of the fixed mold assembly shown;

[0026] Figure 4 for Figure 2 Schematic diagram of the structure of the driving components and demoulding parts of the middle fixed mold assembly;

[0027] Figure 5 for Figure 1 Schematic diagram of the structure of the middle movable mold assembly and the telescopic drive component;

[0028] Figure 6 for Figure 1 A schematic diagram of the loose material structure of the middle feed frame;

[0029] Figure 7 for Figure 1 Schematic diagram of the local structure of the injection mold shown;

[0030] Figure 8 for Figure 7 A partial enlarged view of part A in the middle;

[0031] Figure 9 Schematic diagram of the structure of the blocking member and the second spiral blade rod in a specific embodiment;

[0032] Figure 10 for Figure 1 A schematic diagram of the bottom structure of the chassis shown;

[0033] Figure 11 It is a structural schematic diagram of the aggregate box in a specific embodiment.

[0034] Description of reference numerals:

[0035] Fixed mold assembly 10, fixed mold 11, fixed mold cavity 111, U-shaped groove 112, slot 113, jack 114, demolding member 12, through hole 121, driving component 13, first driving source 131, first transmission component 132, first transmission member 1321, second transmission member 1322, connecting member 1323, first connecting plate 13231, second connecting plate 13232, plug-in plate 13233, first mounting bracket 133, liquid cooling structure 14, liquid pump 141, liquid cooling pipeline 142, air cooling structure 15, second driving source 151, second transmission component 152, active rod 1521, active pulley 1522, driven rod 1523, driven pulley 1524, transmission belt 1525, fan 153, second mounting bracket 154, mounting plate 16, injection hole 161;

[0036] The movable mold assembly 20, the movable mold 21, the mounting frame 22, the first side wall 221, the second side wall 222, the demoulding structure 23, the sliding rod 231, the ejector rod 232, the elastic member 233, the stopper 234, and the connecting plate 235;

[0037] Base frame 30, blanking port 31, telescopic drive member 40;

[0038] Feed frame 51, loosening structure 52, third driving source 521, third transmission component 522, screw 5221, screw hole block 5222, connecting rod 5223, auxiliary plate 5224, loosening assembly 523, fourth driving source 5231, first spiral blade rod 5232, cleaning brush 5233, transmission shaft 5234, third mounting bracket 524;

[0039] Injection cylinder 61 , discharge channel 611 , clamping frame 612 , clamping rod 613 , blocking member 62 , clamping block 621 , clamping hole 622 , L-shaped rod 623 , second spiral blade rod 63 , spiral blade 631 , operating portion 632 , driving mechanism 64 , spiral feed rod 65 ;

[0040] Aggregate box 71 , rectangular ring clamp 711 , positioning hole 7111 , slide groove 712 , rectangular ring clamp frame 72 , positioning rod 721 , push plate 73 , fixing rod 74 , sliding block 75 , operating rod 76 , and frustum frame 77 . DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0042] The ordinal numbers such as first and second used in this article are to distinguish different components with the same name, and do not indicate a specific order or a primary and secondary relationship.

[0043] The directional terms "upper" (top), "lower" (bottom), etc. used herein are defined based on the relative positions and locations of components in the accompanying drawings. The use of directional terms is solely for clarity and convenience in describing the technical solution and does not constitute a limitation on the scope of protection.

[0044] For ease of understanding and concise description, the following description will be made in conjunction with the fixed mold assembly and the injection mold having the fixed mold assembly. Without loss of generality, the description will be made using the injection mold for producing the fastening structure shown in the accompanying drawings.

[0045] Please refer to Figure 1 , Figure 1 This is a schematic structural diagram of an injection mold in an embodiment provided in this application.

[0046] In this embodiment, the injection mold includes a fixed mold assembly 10, a movable mold assembly 20 and a base frame 30, wherein the fixed mold assembly 10 is fixedly mounted on the base frame 30, and the movable mold 21 of the movable mold assembly 20 (marked on Figure 5 The movable mold 21 can move closer to or further away from the fixed mold assembly 10. The movable mold 21 can move relative to the fixed mold assembly 10 between a mold closing position and a mold opening position. Moving the movable mold 21 closer to the fixed mold assembly 10 means it moves toward the mold closing position, while moving the movable mold 21 away from the fixed mold assembly 10 means it moves toward the mold opening position. In the mold closing position, the movable mold cavity of the movable mold 21 can cooperate with the fixed mold cavity of the fixed mold assembly 10 to form a mold cavity that mates with the fastening structure.

[0047] by Figure 1 In the illustrated orientation, the fixed mold assembly 10 is located to the left of the movable mold assembly 20. The movable mold 21 of the movable mold assembly 20 can move leftward to approach the fixed mold assembly 10, or rightward to move away from the fixed mold assembly 10. To ensure that the movable mold cavity of the movable mold 21 cooperates with the fixed mold cavity of the fixed mold assembly 10 to form a closed mold cavity, the movable mold cavity and the fixed mold cavity are arranged facing each other.

[0048] This application optimizes the structure of the fixed mold assembly 10, which can be referred to Figures 2 to 4 understand, Figure 2 for Figure 1 Schematic diagram of the structure of the middle fixed mold assembly, Figure 3 for Figure 2 The partial structural diagram of the fixed mold assembly is shown in FIG. Figure 4 for Figure 2 Schematic diagram of the structure of the driving components and demoulding parts of the fixed mold assembly. Figure 3 The driving components and demoulding parts are hidden in the figure, and a cross-sectional view of the fixed mold is shown.

[0049] In this embodiment, the fixed mold assembly 10 includes a fixed mold 11, a demolding member 12 and a driving member 13; the fixed mold 11 has a fixed mold cavity 111; the demolding member 12 is located in the fixed mold cavity 111, and the outer shape of the demolding member 12 is consistent with the cross-sectional shape of the fixed mold cavity 111. The demolding member 12 has a through hole 121 connected to the fixed mold cavity 111, and the through hole 121 is used to connect to the injection hole 161; the driving member 13 is used to drive the demolding member 12 to move back and forth along the axial direction of the fixed mold cavity 111.

[0050] Here, the axial direction of the fixed mold cavity 111 is consistent with the moving direction of the movable mold 21 relative to the fixed mold assembly 10 , and the cross section of the fixed mold cavity 111 is perpendicular to the axial direction of the fixed mold cavity 111 .

[0051] In the above scheme, the outer shape of the demolding part 12 is consistent with the cross-sectional shape of the fixed mold cavity 111, and has a through hole 121 connected to the injection hole 161, which can ensure that the molten injection material can be injected into the fixed mold cavity 111 through the injection hole 161 and the through hole 121 without affecting the outer shape of the fastening structure to be produced.

[0052] During injection molding, the demolding member 12 is moved to the end of the fixed mold cavity 111 away from the movable mold 21 by the driving component 13. The molten injection material will not affect the appearance of the fastening structure after injection. When the injection molding is completed and the mold is demolded, the movable mold 21 moves away from the fixed mold assembly 10. If the injection molded product adheres to the fixed mold 11, the demolding member 12 can be driven by the driving component 13 to move along the axial direction of the fixed mold cavity 111 toward the direction where the movable mold assembly 20 is located, thereby pushing the injection molded product adhered to the fixed mold cavity 111 out of the fixed mold 11, and demolding the injection molded product on the fixed mold 11.

[0053] The fixed mold assembly 10 using the above solution can conveniently and reliably demould the injection-molded product adhered to the fixed mold cavity 111 without manual processing, thereby improving the convenience and reliability of demoulding.

[0054] In one implementation, the drive component 13 includes a first drive source 131 and a first transmission component 132. The first drive source 131 is in transmission connection with the demolding member 12 via the first transmission component 132. Thus, the demolding member 12 is in transmission connection with the first drive source 131 via the first transmission component 132. The position of the first drive source 131 can be flexibly arranged according to the actual structure, and the first transmission component 132 can be matched to facilitate the driving operation of the demolding member 12.

[0055] Specifically, the first transmission component 132 includes a first transmission member 1321, a second transmission member 1322 and a connecting member 1323, wherein the second transmission member 1322 is threadedly connected to the first transmission member 1321, the connecting member 1323 connects the second transmission member 1322 and the demolding member 12, and the first driving source 131 is used to drive the first transmission member 1321 to rotate.

[0056] The first driving source 131 drives the first transmission member 1321 to rotate. Since the second transmission member 1322 is threadedly connected to the first transmission member 1321, the rotation of the first transmission member 1321 can be converted into a linear movement of the second transmission member 1322. When the second transmission member 1322 moves linearly, it drives the demolding member 12 to move in the fixed mold cavity 111 through the connecting member 1323.

[0057] It can be understood that the linear moving direction of the second transmission member 1322 is consistent with the axial direction of the fixed mold cavity 111.

[0058] The structural arrangement of the driving component 13 can ensure the reliability of the demoulding operation of the demoulding member 12 ; the second transmission member 1322 and the demoulding member 12 are connected by the connecting member 1323 , which is conducive to the flexible arrangement of the relevant structures of the driving component 13 .

[0059] In a specific implementation, the fixed mold assembly 10 includes a mounting plate 16, the fixed mold 11 is installed on one side of the mounting plate 16, the first driving source 131 is installed on the other side of the mounting plate 16, the second transmission member 1322 is inserted into the mounting plate 16, the fixed mold 11 includes a slot 113 connected to the fixed mold cavity 111, at least part of the connecting member 1323 is inserted into the slot 113, and the mounting plate 16 has an injection hole 161, which corresponds to the position of the through hole 121 of the demolding member 12.

[0060] After the above arrangement, when the first driving source 131 drives the first transmission member 1321 to rotate, the second transmission member 1322 can slide relative to the mounting plate 16. The cooperation between the second transmission member 1322 and the mounting plate 16 can limit the sliding direction of the second transmission member 1322, ensuring that the second transmission member 1322 drives the connecting member 1323 to move accurately. At the same time, the connecting member 1323 cooperates with the slot 113 of the fixed mold 11, and the slot 113 also limits the moving direction of the connecting member 1323, ensuring that the connecting member 1323 drives the demolding member 12 to move accurately. Among them, the slot 113 is connected to the fixed mold cavity 111, which facilitates the installation of the demolding member 12 and the transmission connection with the driving component 13.

[0061] The mounting plate 16 defines an inserting hole 114 , and the second transmission member 1322 is inserted into the inserting hole 114 .

[0062] In the illustrated example, the first transmission member 1321 is a transmission rod with an external thread structure, and the second transmission member 1322 is a sleeve with an internal thread structure. The second transmission member 1322 is threadedly connected to the outer periphery of the first transmission member 1321. In other embodiments, the first transmission member 1321 can also be externally mounted on the second transmission member 1322.

[0063] In a specific implementation, a first mounting bracket 133 is fixedly connected to the side of the mounting plate 16 facing away from the fixed mold 11. The first transmission member 1321 is rotatably inserted into the first mounting bracket 133. The first driving source 131 is drivingly connected to the end of the first transmission member 1321 that extends out of the first mounting bracket 133 and away from the mounting plate 16. This facilitates the installation of the first driving source 131 and the first transmission member 1321, ensuring the reliability of the driving component 13.

[0064] Combine Figure 3The cross-sectional area of ​​the fixed mold cavity 111 is generally larger than the aperture of the injection hole 161 of the mounting plate 16. After the fixed mold 11 is installed on the mounting plate 16, the plate surface of the mounting plate 16 facing the fixed mold 11 cooperates with the fixed mold cavity 111 of the fixed mold 11 to form a groove structure. During injection molding, the demolding part 12 is made to fit with the plate surface of the mounting plate 16 facing the fixed mold 11, which can limit the position of the demolding part 12.

[0065] In actual application, the first driving source 131 can control the first transmission member 1321 to rotate forward or reverse to drive the demolding member 12 to move toward the side where the mounting plate 16 is located for reset, or to move away from the side where the mounting plate 16 is located for demolding.

[0066] In the illustrated example, the cross-section of the fixed mold cavity 111 of the fixed mold 11 is circular. Accordingly, the outer shape of the demolding part 12 is also circular, and the injection hole 161 is also circular. Since the demolding part 12 also has a through hole 121 that is connected to and matches the injection hole 161, the demolding part 12 as a whole is a circular ring structure.

[0067] In a specific implementation, the connecting member 1323 includes a first connecting plate 13231 , a second connecting plate 13232 and an inserting plate 13233 .

[0068] The first connecting plate 13231 is fixedly connected to the second transmission member 1322. The first connecting plate 13231 can be a circular plate whose diameter is larger than the aperture of the socket 114 of the fixed mold 11. In this way, when the second transmission member 1322 moves in the direction away from the fixed mold 11, the first connecting plate 13231 can abut against the mounting plate 16 to limit the position of the second transmission member 1322 moving in the direction away from the fixed mold 11; in actual setting, when the first connecting plate 13231 abuts against the mounting plate 16, the demolding member 12 also abuts against the mounting plate 16.

[0069] Second connecting plate 13232 is fixedly connected to first connecting plate 13231 and insertion plate 13233. Insertion plate 13233 is inserted into slot 113 of fixed mold 11, and the bottom of insertion plate 13233 is fixedly connected to demolding member 12. In the illustrated example, second connecting plate 13232 is a strip-shaped structure. The configuration of second connecting plate 13232 facilitates the connection between insertion plate 13233 and first connecting plate 13231. Its shape can be customized based on the actual structure and is not limited to the illustrated example. Furthermore, the structure of first connecting plate 13231 and insertion plate 13233 can be adjusted to meet application needs.

[0070] In this embodiment, the fixed mold assembly 10 also includes a liquid cooling structure 14. Through the setting of the liquid cooling structure 14, the injection molded product in the fixed mold 11 can be cooled. By utilizing the principle of thermal expansion and contraction, the injection molded product can be easily separated from the fixed mold 11, thereby facilitating the demolding operation.

[0071] In a specific implementation, the liquid cooling structure 14 includes a liquid pump 141 and a liquid cooling line 142. The two ends of the liquid cooling line 142 are respectively connected to the inlet and outlet of the liquid pump 141. At least a portion of the liquid cooling line 142 is located on the periphery of the fixed mold cavity 111. In this way, the coolant circulating in the liquid cooling line 142 can quickly cool the injection molded product in the fixed mold cavity 111, thereby creating a gap between the injection molded product and the fixed mold cavity 111. This increases the probability that the injection molded product will break away from the fixed mold cavity 111 and adhere to the movable mold 21, thereby facilitating demolding and improving the ease of demolding the injection molded product.

[0072] Combine Figure 2 and Figure 3 The fixed mold 11 has a U-shaped groove 112, and the fixed mold cavity 111 is located in the U-shaped groove 112. Part of the liquid cooling pipeline 142 can be set in the U-shaped groove 112 to facilitate cooling the area where the fixed mold cavity 111 is located.

[0073] The liquid pump 141 can be installed on the side of the mounting plate 16 facing the fixed mold 11 to facilitate connection with the liquid cooling pipeline 142 .

[0074] In practical applications, the coolant flowing in the liquid cooling pipe 142 can be water, which is easy to obtain and inexpensive.

[0075] In this embodiment, the fixed mold assembly 10 also includes an air cooling structure 15. Through the setting of the air cooling structure 15, the injection molded product in the fixed mold 11 can be cooled. By utilizing the principle of thermal expansion and contraction, the injection molded product can be easily separated from the fixed mold 11, thereby facilitating the demolding operation.

[0076] Specifically, the air-cooling structure 15 includes a second drive source 151, a second transmission component 152, and a fan 153. The second drive source 151 is in transmission connection with the fan 153 via the second transmission component 152. Thus, the second drive source 151 drives the fan 153 to rotate via the second transmission component 152, thereby cooling the fixed mold 11 and facilitating the separation of the molded product in the fixed mold cavity 111 from the fixed mold 11.

[0077] The second driving source 151 and the second transmission component 152 can be set as needed. Figure 2 and Figure 3 A specific implementation method is described.

[0078] The second driving source 151 can be mounted on the fixed mold 11 via a second mounting bracket 154. The second transmission component 152 includes an active rod 1521 in transmission connection with the second driving source 151, a driving wheel 1522 fixedly sleeved on the active rod 1521, and a driven wheel 1524 in transmission connection with the driving wheel 1522 via a transmission belt 1525. The driven wheel 1524 is fixedly connected to the driven rod 1523, and the fan 153 is fixedly sleeved on the driven rod 1523. In this way, when the second driving source 151 drives the active rod 1521 to rotate, it can drive the driving wheel 1522 to rotate, and drive the driven wheel 1524 to rotate via the transmission belt 1525, thereby driving the driven rod 1523 and the fan 153 to rotate.

[0079] In the illustrated example, the second driving source 151 is installed at the bottom of the fixed mold 11, the active rod 1521 can rotatably pass through the bottom of the fixed mold 11, and the driven rod 1523 can rotatably pass through the top of the fixed mold 11. Fans 153 are fixed at both ends of the driven rod 1523. In order to improve the stability and reliability of the action of the second transmission component 152, a driving wheel 1522, a transmission belt 1525 and a driven wheel 1524 with transmission connections are provided at both ends of the active rod 1521 and the driven rod 1523.

[0080] Please combine Figure 5 , Figure 5 for Figure 1 Schematic view of the structure of the middle movable mold assembly and the telescopic drive part.

[0081] In this embodiment, a telescopic driving member 40 is installed on the base frame 30 of the injection mold. The telescopic driving member 40 is used to drive the movable mold 21 to move closer to or away from the fixed mold assembly 10.

[0082] The movable mold assembly 20 includes a movable mold 21 and a mounting frame 22. The movable mold 21 is fixed to a first side wall 221 of the mounting frame 22 facing the fixed mold assembly 10. The mounting frame 22 is connected to the telescopic end of the telescopic drive member 40 by a second side wall 222 facing away from the fixed mold assembly 10. Figure 1 The telescopic driving member 40 is arranged on the side of the movable mold assembly 20 facing away from the fixed mold assembly 10. It can be understood that when the telescopic end of the telescopic driving member 40 is extended, it drives the mounting frame 22 and the movable mold 21 to move toward the fixed mold assembly 10. When the telescopic end of the telescopic driving member 40 is retracted, it drives the mounting frame 22 and the movable mold 21 to move away from the fixed mold assembly 10.

[0083] The movable mold assembly 20 further includes a demoulding structure 23. When the injection molded product adheres to the movable mold 21, the demoulding structure 23 can be used to demould the injection molded product, thereby facilitating the demoulding operation of the injection molded product.

[0084] The demolding structure 23 includes a sliding rod 231, a push rod 232, an elastic member 233 and a stop member 234; the sliding rod 231 is slidably penetrated by the second side wall 222 of the mounting frame 22; the first end of the sliding rod 231 is fixedly connected to the push rod 232, and the push rod 232 is slidably penetrated by the first side wall 221 of the mounting frame 22. It can be understood that the first end of the sliding rod 231 is the end close to the fixed mold assembly 10; the elastic member 233 is sleeved on the sliding rod 231, one end of the elastic member 233 is fixedly connected to the push rod 232, and the other end of the elastic member 233 is fixedly connected to the second side wall 222; the stop member 234 is fixed on the base frame 30, and the second end of the sliding rod 231 extends out of the second side wall 222 and corresponds to the position of the stop member 234. It can be understood that the second end of the sliding rod 231 is the end away from the fixed mold assembly 10, and the stop member 234 is arranged on the side of the mounting frame 22 facing away from the fixed mold assembly 10.

[0085] After being configured as above, the demoulding structure 23 can demould the injection molded product adhered to the movable mold 21 when the movable mold 21 moves toward the mold opening position (ie, away from the fixed mold assembly 10 ).

[0086] When the movable mold 21 is in the closing position with the fixed mold 11, the push rod 232 is in a retracted state relative to the first side wall 221. The push rod 232 can be specifically located between the first side wall 221 and the second side wall 222, or at least partially inserted into the first side wall 221, but in a position that does not affect the cooperation between the movable mold 21 and the fixed mold 11.

[0087] After the injection molding is completed, the telescopic driving member 40 drives the mounting frame 22 and the movable mold 21 to move in the direction away from the fixed mold assembly 10. In the initial stage, the movable mold 21, the mounting frame 22, the ejector rod 232, the sliding rod 231 and the elastic member 233 move together in the direction away from the fixed mold assembly 10 as a whole. When the sliding rod 231 abuts against the stopper 234 fixed on the base frame 30, the demoulding stage is entered. During this process, the telescopic driving member 40 drives the mounting frame 22 and the movable mold 21 to continue to move in the direction away from the fixed mold assembly 10. The sliding rod 231 cannot continue to move under the restriction of the stopper 234. During this process, the mounting frame 22 and the movable mold 21 move relative to the sliding rod 231, so that the ejector rod 232 fixedly connected to the sliding rod 231 extends out of the second side wall 222 and can apply force to the injection molded product adhered to the movable mold 21, so that the injection molded product is separated from the movable mold 21. The provision of the elastic member 233 can facilitate the stability of the sliding of the mounting frame 22 and the movable mold 21 relative to the sliding rod 231 , and also facilitate the reset of the sliding rod 231 relative to the mounting frame 22 after it is released from the stopper 234 .

[0088] Exemplarily, the elastic member 233 is a spring.

[0089] For example, the telescopic drive member 40 may be a hydraulic telescopic cylinder, a pneumatic telescopic cylinder, or an electric push rod.

[0090] Specifically, the demolding structure 23 comprises two sliding rods 231, with two cooperating stoppers 234 disposed at the second ends of the two sliding rods 231. The first ends of the two sliding rods 231 are fixedly connected via a securing plate 235, and the ejector rod 232 is secured to the securing plate 235, indirectly securing the ejector rod 232 to the sliding rods 231. This arrangement facilitates smooth demolding operations performed by the ejector rods 232. Accordingly, two elastic members 233 are provided, one each sleeved over the two sliding rods 231.

[0091] Refer again Figure 1 The injection mold further includes a feed frame 51, which is used to accommodate the injection material to facilitate the subsequent heating and melting of the injection material and then injecting it into the mold cavity to form an injection molded product.

[0092] The injection mold further includes an injection cylinder 61, which is mounted on the base frame 30. A feed frame 51 is fixed to the top of the injection cylinder 61. The discharge port of the feed frame 51 is connected to the feed port of the injection cylinder 61, and the discharge port of the injection cylinder 61 is connected to the fixed mold cavity 111 of the fixed mold 11. A heating element can be provided on the peripheral wall of the injection cylinder 61 for heating the injection material fed into the injection cylinder 61.

[0093] The injection mold also includes a driving mechanism 64 and a screw feed rod 65. The driving mechanism 64 is installed on the base frame 30. The screw feed rod 65 is located in the injection cylinder 61 and is connected to the driving mechanism 64. The driving mechanism 64 can drive the screw feed rod 65 to rotate to inject the molten injection material into the mold cavity formed by the fixed mold 11 and the movable mold 21.

[0094] In this embodiment, the injection mold further includes a loosening structure 52 , which is used to loosen the injection material in the feed frame 51 to prevent the feed frame 51 from being blocked.

[0095] Please combine Figure 6 , Figure 6 for Figure 1 Schematic diagram of the loose material structure of the middle feed frame.

[0096] In this embodiment, the loosening structure 52 includes a third driving source 521, a third transmission component 522 and a loosening assembly 523; the third driving source 521 is connected to the loosening assembly 523 through the third transmission component 522 to drive the loosening assembly 523 to extend into or move out of the feed frame 51; the loosening assembly 523 includes a fourth driving source 5231, a first spiral blade rod 5232 and a cleaning brush 5233, the fourth driving source 5231 is used to drive the first spiral blade rod 5232 and the cleaning brush 5233 to rotate, and the cleaning brush 5233 is used to clean the inner wall of the feed frame 51.

[0097] During application, when material blockage occurs in the feed frame 51, the third driving source 521 can be controlled to drive the loosening component 523 to extend into the feed frame 51 through the third transmission component 522. Thereafter, the first spiral blade rod 5232 and the cleaning brush 5233 are driven to rotate through the fourth driving source 5231. When the spiral blade of the first spiral blade rod 5232 rotates, the injection molding material in the feed frame 51 can be loosened. During the rotation process, the cleaning brush 5233 can clean the accumulated material on the inner wall of the feed frame 51, thereby realizing the loosening operation of the feed frame 51 and preventing material blockage.

[0098] In one implementation, the third driving source 521 drives the loosening assembly 523 to move up and down vertically through the third transmission component 522 to achieve the operation of extending into the feed frame 51 or moving out of the feed frame 51.

[0099] In a specific implementation, a third mounting bracket 524 may be fixed on the base frame 30 , and the third driving source 521 may be mounted on the third mounting bracket 524 .

[0100] The third transmission component 522 includes a screw 5221 mounted within a third mounting bracket 524 and a screw hole block 5222 threadedly connected to the screw 5221. The screw hole block 5222 is fixedly connected to a connecting rod 5223. An auxiliary plate 5224 is fixed to the end of the connecting rod 5223 away from the screw hole block 5222. The loosening assembly 523 is mounted on the auxiliary plate 5224. The third driving source 521 is used to drive the screw 5221 to rotate.

[0101] The connecting rod 5223 can be structurally arranged according to the positions of the third mounting bracket 524 and the feed frame 51 to ensure that the loosening assembly 523 installed on the auxiliary plate 5224 corresponds to the position of the feed frame 51 in the height direction, thereby ensuring that the loosening assembly 523 can be extended into or moved out of the feed frame 51. In the illustrated example, the connecting rod 5223 is generally L-shaped.

[0102] During operation, the third driving source 521 drives the screw 5221 to rotate, thereby driving the screw hole block 5222 threadedly connected to the screw 5221 to move up and down along the screw 5221, and then drives the loosening assembly 523 installed on the auxiliary plate 5224 to move up and down through the connecting rod 5223 to extend into or move out of the feed frame 51.

[0103] In a specific implementation, the fourth driving source 5231 of the loosening component 523 is installed on the auxiliary plate 5224 and is connected to the transmission shaft 5234. The bottom of the transmission shaft 5234 is fixed with the first spiral blade rod 5232, and the cleaning brush 5233 can be fixed on the transmission shaft 5234.

[0104] The relative positions of the cleaning brush 5233 and the first spiral blade rod 5232, as well as the positioning of the cleaning brush 5233, are related to the structural form of the feed frame 51. For example, the feed frame 51 includes a funnel-shaped frame at the top and a tubular output end at the bottom. The first spiral blade rod 5232 can be adapted to the tubular output end. During cleaning, the first spiral blade rod 5232 can extend into the tubular output end to loosen any blocked material. The cleaning brush 5233 can be tilted to facilitate cleaning the inner wall of the funnel-shaped frame during rotation.

[0105] Please refer to Figures 7 to 9 , Figure 7 for Figure 1 The schematic diagram of the local structure of the injection mold shown in FIG. Figure 8 for Figure 7 A partial enlarged view of part A in the middle. Figure 9 Schematic diagram of the structure of the blocking member and the second spiral blade rod in a specific embodiment.

[0106] In actual applications, after the injection molding is completed, the injection molding material remaining in the injection molding cylinder 61 will solidify, or during use, due to incomplete heating, part of the injection molding material will be deposited at the bottom of the injection molding cylinder 61, causing the injection molding cylinder 61 to be blocked.

[0107] In this embodiment, the injection mold is further provided with a related structure for loosening the injection cylinder 61 so as to loosen the injection cylinder 61 when the injection cylinder 61 is blocked.

[0108] The injection cylinder 61 is provided with a discharge channel 611 on the cylinder wall near the base frame 30. The bottom end opening of the discharge channel 611 is detachably connected to a blocking piece 62. The blocking piece 62 is rotatably inserted with a second spiral blade rod 63. The spiral blade 631 of the second spiral blade rod 63 is located in the discharge channel 611.

[0109] After the above arrangement, when material blockage occurs at the bottom of the injection cylinder 61 , the blocked material at the bottom of the injection cylinder 61 can be loosened by rotating the second spiral blade rod 63 .

[0110] In a specific configuration, the second spiral blade rod 63 can move up and down relative to the blocking member 62 to adjust the height of the second spiral blade rod 63 in the injection cylinder 61 , thereby improving the material loosening effect.

[0111] For example, the second spiral blade rod 63 may be threadedly connected to the blocking member 62 to achieve up and down movement.

[0112] To facilitate operation of the second spiral blade rod 63 , the bottom end of the second spiral blade rod 63 can extend out of the blocking member 62 and is fixed with an operating portion 632 to facilitate rotation or lifting of the second spiral blade rod 63 through the operating portion 632 .

[0113] In one implementation, the blocking member 62 and the bottom opening of the discharge channel 611 can be detachably connected by snapping.

[0114] Specifically, a card frame 612 can be provided on the surrounding side of the bottom opening of the discharge channel 611, and a card block 621 can be provided on the surrounding side of the blocking member 62. After the blocking member 62 blocks the bottom opening of the discharge channel 611, the card block 621 of the blocking member 62 can be embedded in the card frame 612.

[0115] To facilitate the arrangement of the clamping block 621 , the clamping block 621 and the blocking member 62 may be connected via an L-shaped rod 623 .

[0116] Furthermore, a clamping rod 613 can be inserted into the clamping frame 612, and a clamping hole 622 is provided on the clamping block 621. After the clamping frame 612 and the clamping block 621 are clamped together, the clamping rod 613 can be inserted into the clamping hole 622 to improve the connection effect between the sealing member 62 and the discharge channel 611.

[0117] In other embodiments, the clamping frame 612 and the clamping block 621 can be set in reverse, that is, the clamping frame 612 is set on the blocking member 62, and the clamping block 621 is set on the discharge channel 611; the clamping rod 613 and the clamping hole 622 can also be set in reverse.

[0118] In the illustrated example, the injection cylinder 61 is provided with four discharge channels 611 and corresponding blocking members 62 and a second spiral blade rod 63 along its axial direction. In other embodiments, the number and arrangement of the discharge channels 611 can be set as needed.

[0119] Please refer to Figure 10 and Figure 11 , Figure 10 for Figure 1 The bottom structure diagram of the chassis shown is as follows, Figure 11 It is a structural schematic diagram of the aggregate box in a specific embodiment.

[0120] In this embodiment, the base frame 30 has a drop opening 31, which is located between the fixed mold assembly 10 and the movable mold assembly 20. The injection mold also includes a collection box 71, which is detachably mounted at the bottom of the drop opening 31. In this way, the molded product can be conveniently dropped from the drop opening 31 into the collection box 71 after demolding, so that the molded product can be collected.

[0121] A push plate 73 is provided in the collection box 71. The push plate 73 can slide in a direction perpendicular to the direction of material dropping. In this way, when the injection molded products in the collection box 71 are piled high, the sliding of the push plate 73 can smooth the injection molded products in the collection box 71, thereby preventing the injection molded products from piling up in a local area of ​​the collection box 71.

[0122] There are multiple ways to detachably assemble the material collection box 71 and the material dropout opening 31. In one specific implementation, the material dropout opening 31 of the base frame 30 is rectangular, and a rectangular ring clamp frame 72 can be fixedly connected to the bottom of the material dropout opening 31. The rectangular ring clamp frame 72 is arranged around the outer periphery of the material dropout opening 31. The rectangular ring clamp frame 72 can be provided with a positioning rod 721. A rectangular ring clamp 711 can be provided at the top of the material collection box 71, and the rectangular ring clamp 711 can be provided with a positioning hole 7111. The rectangular ring clamp 711 of the material collection box 71 can be clamped with the rectangular ring clamp frame 72. After clamping, the positioning rod 721 can be inserted into the positioning hole 7111 to limit the relative position of the material collection box 71 and the rectangular ring clamp frame 72. Multiple sets of mutually cooperating positioning rods 721 and positioning holes 7111 can be provided.

[0123] There are multiple ways to implement the sliding of the push plate 73 relative to the aggregate box 71. In one specific implementation, a chute 712 is provided on a side wall of the aggregate box 71. A fixed rod 74 is fixed in the chute 712. The fixed rod 74 is provided with a sliding block 75 that can slide along the fixed rod 74. An operating rod 76 is fixed to the outer end of the sliding block 75, and the inner end of the sliding block 75 is fixedly connected to the push plate 73. During operation, the operating rod 76 can be used to drive the sliding block 75 to slide along the fixed rod 74, thereby driving the push plate 73 to slide within the aggregate box 71. In a specific configuration, the chute 712, fixed rod 74, and sliding block 75 can be provided on two opposing side walls of the aggregate box 71, and the two ends of the push plate 73 are fixedly connected to the two sliding blocks 75, respectively, to improve the smoothness and reliability of the movement of the push rod 73.

[0124] In this embodiment, a frustum frame 77 can be fixedly connected to the bottom of the drop opening 31, and the frustum frame 77 is located in the collection box 71. In this way, when the injection molded product is dropped, it can fall into the collection box 71 relatively smoothly under the guidance of the inner wall of the frustum frame 77, avoiding damage to the injection molded product.

[0125] In practical applications, the various driving sources mentioned above can be selected from motors, which are easy to operate and reliable.

[0126] This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above examples is only intended to help understand the method and core ideas of this application. It should be noted that for those skilled in the art, without departing from the principles of this application, various improvements and modifications can be made to this application, and such improvements and modifications also fall within the scope of protection of the claims of this application.

Claims

1. Fixed mold assembly, characterized in that, It includes fixed mold, demoulding parts and driving parts; The fixed mold has a fixed mold cavity; The demoulding member is located in the fixed mold cavity, the outer shape of the demoulding member is consistent with the cross-sectional shape of the fixed mold cavity, and the demoulding member has a through hole communicating with the fixed mold cavity, and the through hole is used to communicate with the injection hole; The driving component is used to drive the demoulding member to move back and forth along the axis direction of the fixed mold cavity.

2. The fixed mold assembly according to claim 1, characterized in that: The driving component includes a first driving source and a first transmission component, and the first driving source is transmission-connected to the demolding member through the first transmission component.

3. The fixed mold assembly according to claim 2, characterized in that: The first transmission component includes a first transmission member, a second transmission member and a connecting member. The second transmission member is threadedly connected to the first transmission member. The connecting member connects the second transmission member and the demolding member. The first driving source is used to drive the first transmission member to rotate.

4. The fixed mold assembly according to claim 3, characterized in that: The fixed mold assembly includes a mounting plate, the fixed mold is mounted on one side of the mounting plate, the first driving source is mounted on the other side of the mounting plate, the second transmission member is inserted into the mounting plate, the fixed mold includes a slot connected to the fixed mold cavity, at least part of the connecting member is inserted into the slot; the mounting plate has the injection hole, and the through hole corresponds to the position of the injection hole.

5. The fixed mold assembly according to any one of claims 1 to 4, characterized in that: The fixed mold assembly also includes a liquid cooling structure, which includes a liquid pump and a liquid cooling pipeline. The two ends of the liquid cooling pipeline are respectively connected to the inlet and outlet of the liquid pump. At least a portion of the liquid cooling pipeline is located on the periphery of the fixed mold cavity.

6. The fixed mold assembly according to any one of claims 1 to 4, characterized in that: The fixed mold assembly further includes an air cooling structure, which includes a second driving source, a second transmission component and a fan, and the second driving source is connected to the fan through the second transmission component.

7. Injection mold, characterized in that, It includes a base frame, a movable mold assembly and a fixed mold assembly, the fixed mold assembly is the fixed mold assembly according to any one of claims 1 to 6, the fixed mold assembly is fixedly mounted on the base frame, and the movable mold of the movable mold assembly can approach or move away from the fixed mold assembly.

8. The injection mold according to claim 7, characterized in that: A telescopic driving member is mounted on the base frame; the movable mold assembly includes a mounting frame, a movable mold, and a demoulding structure, the movable mold being fixed to a first side wall of the mounting frame facing toward the fixed mold assembly, and a second side wall of the mounting frame facing away from the fixed mold assembly being connected to the telescopic end of the telescopic driving member; The demoulding structure includes a sliding rod, a push rod, an elastic member and a stop member, the sliding rod is slidably penetrated through the second side wall, the first end of the sliding rod is fixedly connected to the push rod, the push rod is slidably penetrated through the first side wall, the elastic member is sleeved on the sliding rod, one end of the elastic member is fixedly connected to the push rod, the other end of the elastic member is fixedly connected to the second side wall, the stop member is fixed on the base frame, and the second end of the sliding rod extends out of the second side wall and corresponds to the position of the stop member.

9. The injection mold according to claim 7, characterized in that: The injection mold includes a feed frame and a loosening structure; the loosening structure includes a third driving source, a third transmission component and a loosening assembly, and the third driving source is connected to the loosening assembly through the third transmission component to drive the loosening assembly to extend into or move out of the feed frame; the loosening assembly includes a fourth driving source, a first spiral blade rod and a cleaning brush, and the fourth driving source is used to drive the first spiral blade rod and the cleaning brush to rotate, and the cleaning brush is used to clean the inner wall of the feed frame.

10. The injection mold according to claim 9, characterized in that The injection mold includes an injection cylinder, which is mounted on the base frame, and the feed frame is fixed on the top of the injection cylinder. The discharge port of the feed frame is connected to the feed port of the injection cylinder, and the discharge port of the injection cylinder is connected to the fixed mold cavity. The injection molding cylinder has a discharge channel on its wall near the base frame. The bottom opening of the discharge channel is detachably connected to a blocking piece. A second spiral blade rod is rotatably inserted into the blocking piece. The spiral blade of the second spiral blade rod is located in the discharge channel.

11. The injection mold according to any one of claims 7 to 10, characterized in that: The base frame has a blanking port, which is located between the fixed mold assembly and the movable mold assembly; the injection mold includes a material collection box, which is detachably installed at the bottom of the blanking port, and a push plate is provided in the material collection box, which can slide in a direction perpendicular to the blanking direction.

12. The injection mold according to claim 11, characterized in that The bottom of the drop opening is fixedly connected with a frustum frame, and the frustum frame is located in the collection box.

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