Injection molding device

Abstract

The utility model discloses an injection molding device which comprises a lower mold base, a first mold and a second mold, a first cavity is formed in the top of the first mold, a first notch is formed in the top of the first side of the first mold, and the first notch communicates with the first cavity; a second mold is arranged on the bottom surface of the upper mold base, the upper mold base is fixedly connected with the driving end of the first linear driver, the second mold is provided with a mold injection molding opening used for injection molding, and a second mold cavity matched with the first mold cavity is formed in the bottom of the second mold; a second notch matched with the first notch is formed in the bottom of the side, close to the first notch, of the second mold, and the mold injection molding opening and the second notch communicate with the second cavity; the third mold is fixedly connected with the driving end of the second linear driver, and a third cavity matched with the first notch and the second notch is formed in the side, close to the first mold, of the third mold; according to the embodiment provided by the invention, the product forming efficiency and quality can be improved, and the material waste is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of injection molding processing, and particularly relates to an injection molding device. BACKGROUND

[0002] At present, a traditional injection molding system usually performs injection molding processing through a single mold. However, as the structure of an injection molding product is more and more complex, the traditional injection molding system needs to perform multiple processing on the injection molding product through additional equipment or manpower to produce a final product, which leads to low molding efficiency and poor quality and serious material waste. CONTENT OF THE UTILITY MODEL

[0003] The following is a summary of the subject matter described in detail in this document, which is not intended to limit the protection scope of the claims.

[0004] The present application provides an injection molding device, which can improve the efficiency and quality of product molding and reduce material waste.

[0005] The present application provides an injection molding device, which comprises a lower mold base, a first mold, a first linear driver and a second linear driver arranged on the top surface of the lower mold base, a first cavity arranged on the top of the first mold, a first notch arranged on the top of the first side of the first mold, the first notch being communicated with the first cavity, an upper mold base, a second mold arranged on the bottom surface of the upper mold base, the upper mold base being fixedly connected with the driving end of the first linear driver, a mold injection port arranged on the second mold for injection molding, a second cavity arranged on the bottom of the second mold and matched with the first cavity, a second notch arranged on the bottom of the side of the second mold close to the first notch and matched with the first notch, the mold injection port and the second notch being communicated with the second cavity, a third mold fixedly connected with the driving end of the second linear driver, and a third cavity arranged on the side of the third mold close to the first mold and matched with the first notch and the second notch, wherein the first linear driver is used to drive the upper mold base to be close to the lower mold base, so that the first mold is attached to the second mold, and the second linear driver is used to drive the third mold to be close to the first mold, so that the third cavity is matched to close the first notch and the second notch.

[0006] In some embodiments, a fourth mold is movably arranged on the top surface of the lower mold base, the fourth mold is located on different sides of the first mold from the third mold respectively, the first mold is provided with a third gap on the top of the side close to the fourth mold, the third gap is communicated with the first cavity, the second mold is provided with a fourth gap on the bottom of the side close to the third gap, the fourth gap is communicated with the second cavity, and the fourth mold is provided with a fourth cavity on the side close to the first mold, the fourth cavity is matched with the third gap and the fourth gap to seal the third gap and the fourth gap.

[0007] In some embodiments, the upper mold base is fixed with an inclined guide column, the inclined guide column passes through the lower mold base, the fourth mold is fixedly connected with a first sliding block, the first sliding block is slidably connected with the inclined guide column, and the distance between the end of the inclined guide column close to the upper mold base and the first mold is smaller than the distance between the end of the inclined guide column away from the upper mold base and the first mold.

[0008] In some embodiments, the moving direction of the third mold is perpendicular to the moving direction of the fourth mold, the moving direction of the second mold is perpendicular to the moving direction of the third mold, and the moving direction of the second mold is perpendicular to the moving direction of the fourth mold.

[0009] In some embodiments, a base and a ejector pin are further included, one end of the ejector pin is fixed on the base, and the other end of the ejector pin sequentially passes through the lower mold base and the first mold.

[0010] In some embodiments, the bottom of the lower mold base is provided with a spring, and the lower mold base is connected with the base through the spring.

[0011] In some embodiments, the number of springs is multiple, and the multiple springs are distributed around the ejector pin.

[0012] In some embodiments, the second linear driver is a pneumatic cylinder, the top surface of the lower mold base is further provided with a spade base and a second sliding block, the second sliding block is slidably connected with the lower mold base, the driving end of the second linear driver is fixedly connected with one side of the second sliding block through the spade base, and the other side of the second sliding block is fixedly connected with the third mold.

[0013] In some embodiments, the top of the upper mold base is provided with a feeding port, and the feeding port is communicated with the mold injection port through a feeding pipe.

[0014] In some embodiments, the number of first linear drivers is multiple, and the multiple first linear drivers are distributed around the first mold.

[0015] The application has at least the following beneficial effects: the top surface of the lower die seat is provided with a first mold, a first linear driver and a second linear driver, the top of the first mold is provided with a first cavity, the top of the first side of the first mold is provided with a first notch, the first notch is communicated with the first cavity, then the bottom surface of the upper die seat is provided with a second mold, the upper die seat is fixedly connected with the driving end of the first linear driver, the second mold is provided with a mold injection port for injection molding, the bottom of the second mold is provided with a second cavity matched with the first cavity, the bottom of the side of the second mold close to the first notch is provided with a second notch matched with the first notch, and the mold injection port and the second notch are both communicated with the second cavity, then the third mold is fixedly connected with the driving end of the second linear driver, and the side of the third mold close to the first mold is provided with a third cavity matched with the first notch and the second notch, therefore, the first mold, the second mold and the third mold all have unique cavities to place different inserts, then the first linear driver drives the upper die seat to approach the lower die seat to make the first mold and the second mold fit, the second linear driver is used to drive the third mold to approach the first mold to make the third cavity match and close the first notch and the second notch, the inserts located in the closed cavity are injection molded through the mold injection port, and the final product is generated, which can improve the efficiency of product forming, avoid material waste caused by multiple injection molding processes, and reduce errors caused by multiple mold closing, thereby improving the quality of the product.

[0016] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be realized and attained by the structure particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the technical scheme of the present application, and constitute a part of the specification, and are used together with the embodiments of the present application to explain the technical scheme of the present application, and do not constitute a limitation on the technical scheme of the present application.

[0018] Figure 1 The structure schematic diagram of the injection molding device provided by the embodiments of the present application is shown in the figure;

[0019] Figure 2 The structure schematic diagram of the first mold and the base provided by the embodiments of the present application is shown in the figure;

[0020] Figure 3 The top view of the transversely moving mold provided by the embodiments of the present application is shown in the figure;

[0021] Figure 4 The structure schematic diagram of the first mold and the second mold provided by the embodiments of the present application is shown in the figure;

[0022] Figure 5 A structural schematic diagram of a base provided for an embodiment of the present application is shown in the figure.

[0023] Figure 6 A structural schematic diagram of an injection molding pipeline provided for an embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation to the present application.

[0025] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the present application.

[0026] In the description of the present application, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. is understood as not including the number, above, below, etc. is understood as including the number. If it is described as first, second, only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.

[0027] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0028] At present, the traditional injection molding system is usually processed by a single mold, but as the structure of the injection molding product becomes more and more complex, the traditional injection molding system needs to be processed by additional equipment or manpower to produce the final product, resulting in low molding efficiency and poor quality, and serious material waste.

[0029] In view of the problems of low forming efficiency, poor quality and serious material waste, the application provides an injection molding device, which comprises a lower mold base, the top surface of the lower mold base is provided with a first mold, a first linear driver and a second linear driver, the top of the first mold is provided with a first cavity, the top of the first side of the first mold is provided with a first notch, and the first notch is communicated with the first cavity; an upper mold base, the bottom surface of the upper mold base is provided with a second mold, the upper mold base is fixedly connected with the driving end of the first linear driver, the second mold is provided with a mold injection port for injection molding, the bottom of the second mold is provided with a second cavity matched with the first cavity, the bottom of the side of the second mold close to the first notch is provided with a second notch matched with the first notch, and the mold injection port and the second notch are both communicated with the second cavity; a third mold, the third mold is fixedly connected with the driving end of the second linear driver, and the side of the third mold close to the first mold is provided with a third cavity matched with the first notch and the second notch; wherein the first linear driver is used to drive the upper mold base to be close to the lower mold base, so that the first mold is attached to the second mold, and the second linear driver is used to drive the third mold to be close to the first mold, so that the third cavity matches to close the first notch and the second notch. According to the scheme provided by the embodiment of the application, the top surface of the lower mold base is provided with the first mold, the first linear driver and the second linear driver, the top of the first mold is provided with the first cavity, the top of the first side of the first mold is provided with the first notch, the first notch is communicated with the first cavity, then the bottom surface of the upper mold base is provided with the second mold, the upper mold base is fixedly connected with the driving end of the first linear driver, the second mold is provided with the mold injection port for injection molding, the bottom of the second mold is provided with the second cavity matched with the first cavity, the bottom of the side of the second mold close to the first notch is provided with the second notch matched with the first notch, the mold injection port and the second notch are both communicated with the second cavity, then the third mold is fixedly connected with the driving end of the second linear driver, and the side of the third mold close to the first mold is provided with the third cavity matched with the first notch and the second notch, therefore, the first mold, the second mold and the third mold all have unique cavities to place different inserts, then the first linear driver drives the upper mold base to be close to the lower mold base, so that the first mold is attached to the second mold, and the second linear driver is used to drive the third mold to be close to the first mold, so that the third cavity matches to close the first notch and the second notch, the inserts located in the closed cavity are injection molded through the mold injection port, and the final product is generated, which can improve the forming efficiency of the product, avoid material waste caused by multiple injection molding processes, and reduce errors caused by multiple mold closing, thereby improving the quality of the product.

[0030] The embodiments of the application are further described below with reference to the drawings.

[0031] Reference Figures 1 to 4 , Figure 1A structure schematic diagram of an injection molding device provided by an embodiment of the present application, Figure 2 A structure schematic diagram of a first mold and a base provided by an embodiment of the present application, Figure 3 A top view of a laterally moving mold provided by an embodiment of the present application, Figure 4 A structure schematic diagram of a first mold and a second mold provided by an embodiment of the present application, the present application provides an injection molding device, comprising:

[0032] A lower mold base 100, a top surface of the lower mold base 100 is provided with a first mold 110, a first linear actuator 120 and a second linear actuator 340, a top of the first mold 110 is provided with a first cavity 111, a top of a first side of the first mold 110 is provided with a first notch 112, the first notch 112 is communicated with the first cavity 111;

[0033] An upper mold base 200, a bottom surface of the upper mold base 200 is provided with a second mold 210, the upper mold base 200 is fixedly connected with a driving end of the first linear actuator 120, the second mold 210 is provided with a mold injection port 220 for injection molding, a bottom of the second mold 210 is provided with a second cavity 211 matched with the first cavity 111, a bottom of a side of the second mold 210 close to the first notch 112 is provided with a second notch 212 matched with the first notch 112, the mold injection port 220 and the second notch 212 are both communicated with the second cavity 211;

[0034] A third mold 300, the third mold 300 is fixedly connected with a driving end of the second linear actuator 340, a side of the third mold 300 close to the first mold 110 is provided with a third cavity 310 matched with the first notch 112 and the second notch 212;

[0035] The first linear actuator 120 is used to drive the upper mold base 200 to be close to the lower mold base 100, so that the first mold 110 is attached to the second mold 210, the second linear actuator 340 is used to drive the third mold 300 to be close to the first mold 110, so that the third cavity 310 matches to close the first notch 112 and the second notch 212.

[0036] The projection of the lower mold base 100 and the upper mold base in the vertical direction is a rectangle, which is not limited in the present application.

[0037] It should be noted that the first mold 110, the second mold 210 and the third mold 300 are all placed with different inserts (not shown in the figure), each insert is placed by an external device, which is not limited in the present application, and the shape of the insert placed on the first mold 110 matches the shape of the first cavity 111, the inserts of the second mold 210 and the third mold 300 are similar to the insert of the first mold 110, which is not described herein.

[0038] It should be noted that after the first mold 110, the second mold 210 and the third mold 300 are closed, the insert located in the closed cavity is injection molded through the mold injection port 220. Then, the pressure inside the cavity is maintained. Finally, the first linear actuator 120 is also used to drive the upper mold base 200 away from the lower mold base 100 so that the first mold 110 and the second mold 210 are separated. The second linear actuator 340 is also used to drive the third mold 300 away from the first mold 110 so as to remove the final product located in the first mold 110.

[0039] Based on this, the top surface of the lower mold base 100 is provided with a first mold 110, a first linear actuator 120, and a second linear actuator 340. The top of the first mold 110 is provided with a first cavity 111, and the top of the first side of the first mold 110 is provided with a first notch 112, which communicates with the first cavity 111. Then, the bottom surface of the upper mold base 200 is provided with a second mold 210, and the upper mold base 200 is fixedly connected to the driving end of the first linear actuator 120. The second mold 210 is provided with a mold injection port 220 for injection molding, and the bottom of the second mold 210 is provided with a second cavity 211 that mates with the first cavity 111. The bottom of the second mold 210 near the first notch 112 is provided with a second notch 212 that mates with the first notch 112. Both the mold injection port 220 and the second notch 212 communicate with the second cavity 211. Then, the third mold 300 and the second linear actuator... The drive end of 340 is fixedly connected. The third mold 300 is provided with a third cavity 310 on the side near the first mold 110, which mates with the first notch 112 and the second notch 212. Therefore, the first mold 110, the second mold 210 and the third mold 300 all have unique cavities to place different inserts. Then, the first linear driver 120 drives the upper mold base 200 to approach the lower mold base 100 so that the first mold 110 and the second mold 210 fit together. The second linear driver 340 is used to drive the third mold 300 to approach the first mold 110 so that the third cavity 310 mates to close the first notch 112 and the second notch 212. The insert located in the closed cavity is injection molded through the mold injection port 220 to generate the final product. This can improve the efficiency of product molding, avoid material waste caused by multiple injection molding processes, and reduce the error caused by multiple mold closing, thereby improving the quality of the product.

[0040] Additionally, refer to again Figures 1 to 4Some embodiments of the present application further comprise a fourth mold 400 movably arranged on the top surface of the lower mold base 100, the fourth mold 400 is located on different sides of the first mold 110 from the third mold 300 respectively, the first mold 110 is provided with a third gap 113 on the top of the side close to the fourth mold 400, the third gap 113 is communicated with the first cavity 111, the second mold 210 is provided with a fourth gap 213 on the bottom of the side close to the third gap 113, the fourth gap 213 is communicated with the second cavity 211, the fourth mold 400 is provided with a fourth cavity 410 on the side close to the first mold 110, the fourth cavity 410 is matched with the third gap 113 and the fourth gap 213, and the fourth cavity 410 is used to match the third gap 113 and the fourth gap 213.

[0041] The shapes of the first cavity 111, the second cavity 211, the third cavity 310 and the fourth cavity 410 are different.

[0042] The shapes surrounded by the first gap 112 and the second gap 212 are different from the shapes surrounded by the third gap 113 and the fourth gap 213.

[0043] Therefore, the number of opening directions is increased, the structures such as concave, hole or undercut can be avoided from being torn, the difficulty of demolding is reduced, the appearance quality and functionality are improved, the stress concentration of single direction demolding can be avoided, and the integrity of the part is protected.

[0044] In addition, referring again to Figures 1 to 4 Some embodiments of the present application, the upper mold base 200 is fixed with an inclined guide pillar 420, the inclined guide pillar 420 passes through the lower mold base 100, the fourth mold 400 is fixedly connected with a first sliding block 430, the first sliding block 430 is slidingly connected with the inclined guide pillar 420, and the distance between the end of the inclined guide pillar 420 close to the upper mold base 200 and the first mold 110 is less than the distance between the end of the inclined guide pillar 420 away from the upper mold base 200 and the first mold 110.

[0045] It should be noted that when the first linear driver 120 drives the upper mold base 200 to move close to the lower mold base 100, the inclined guide column 420 is driven to move downward, and since the distance between the end of the inclined guide column 420 close to the upper mold base 200 and the first mold 110 is smaller than the distance between the end of the inclined guide column 420 away from the upper mold base 200 and the first mold 110, the slider on the inclined guide column 420 is indirectly driven to move away from the first mold 110 along the top surface of the lower mold base 100. According to the Pythagorean theorem, the inclined guide column 420 is the hypotenuse of a right triangle, and thus the displacement of the inclined guide column 420 downward is one of the right angles of the right triangle, and the horizontal displacement of the slider is the other right angle of the right triangle. The principle when the first linear driver 120 drives the upper mold base 200 to move away from the lower mold base 100 is similar to the above process, and thus the disclosure embodiment will not be repeated here.

[0046] Based on this, the upper mold base 200 is fixed with the inclined guide column 420, the inclined guide column 420 passes through the lower mold base 100, the fourth mold 400 is fixedly connected with the first slider 430, the first slider 430 is in sliding connection with the inclined guide column 420, the distance between the end of the inclined guide column 420 close to the upper mold base 200 and the first mold 110 is smaller than the distance between the end of the inclined guide column 420 away from the upper mold base 200 and the first mold 110, and the first slider 430 can be moved horizontally by the force of the mold clamping and mold opening, so as to drive the fourth mold 400 to move horizontally. Not only can the number of drivers be reduced and the cost be reduced, but also the fourth mold 400 can be synchronized with the first mold 110 to clamp the mold, and the consistency of the mold clamping step is improved, so as to reduce the risk of mold clamping failure.

[0047] In addition, referring again to Figures 1 to 4 In some embodiments of the present application, the moving direction of the third mold 300 is perpendicular to the moving direction of the fourth mold 400, the moving direction of the second mold 210 is perpendicular to the moving direction of the third mold 300, and the moving direction of the second mold 210 is perpendicular to the moving direction of the fourth mold 400.

[0048] In some embodiments of the present application, the moving direction of the third mold 300 is perpendicular to the moving direction of the fourth mold 400, the moving direction of the second mold 210 is perpendicular to the moving direction of the third mold 300, and the moving direction of the second mold 210 is perpendicular to the moving direction of the fourth mold 400.

[0049] Therefore, the moving direction of the third mold 300 is perpendicular to the moving direction of the fourth mold 400, the moving direction of the second mold 210 is perpendicular to the moving direction of the third mold 300, and the moving direction of the second mold 210 is perpendicular to the moving direction of the fourth mold 400, so as to close the gap of the first mold 110 and the second mold 210 in multiple directions, realize three-dimensional injection molding, and realize accurate pressure application in different areas, so as to avoid uneven material flow caused by single direction forming, thereby improving the quality of product injection molding.

[0050] In addition, referring again to Figures 1 to 4 , some embodiments of the present application also include a base 500 and a ejector pin 510, one end of the ejector pin 510 is fixed on the base 500, and the other end of the ejector pin 510 passes through the lower mold base 100 and the first mold 110 in sequence.

[0051] In addition, referring again to Figure 6 , Figure 6 The structure diagram of the injection molding pipeline provided by the embodiment of the present application is shown, and the lower mold base 100 is connected with the third linear driver 440 below the upper mold base 200, and the third linear driver 440 is used to drive the lower mold base 100 to move close to the base 500, so that the ejector pin 510 can eject the product located in the first mold 110.

[0052] In addition, referring again to

[0053] In addition, referring again to

[0054] In addition, referring again to Figure 1 and Figure 2 , and referring to Figure 5 , Figure 5 The structure diagram of the base provided by the embodiment of the present application is shown, and the bottom of the lower mold base 100 is provided with a spring 520, and the lower mold base 100 is connected with the base 500 through the spring 520.

[0055] In addition, referring again to

[0056] In addition, referring again to Figure 1 , Figure 2 andFigure 5 In some embodiments of the present application, the number of springs 520 is multiple, and the multiple springs 520 are distributed around the ejector pin 510.

[0057] The bottom surface of the lower mold base 100 is rectangular.

[0058] The number of springs 520 can be four, and the four springs 520 are respectively located at the four corners of the bottom surface of the lower mold base 100.

[0059] Therefore, the number of springs 520 is multiple, and the multiple springs 520 are distributed around the ejector pin 510, so that the reset forces of different areas of the lower mold base 100 are balanced, avoiding the inclination of the ejector pin 510 plate, the deflection of the guide column, or the reset jam, thereby improving the reset synchronization and precision.

[0060] In addition, referring again to Figures 1 to 4 In some embodiments of the present application, the second linear driver 340 is a pneumatic cylinder, and the top surface of the lower mold base 100 is further provided with a shovel base 320 and a second sliding block 330, the second sliding block 330 is slidingly connected with the lower mold base 100, and the driving end of the second linear driver is fixedly connected with one side of the second sliding block 330 through the shovel base 320, and the other side of the second sliding block 330 is fixedly connected with the third mold 300.

[0061] It should be noted that the side of the third mold 300 facing the first mold 110 extends outward, the side of the fourth mold 400 facing the first mold 110 extends outward, and the length of the side of the third mold 300 extending toward the first mold 110 is greater than the length of the side of the fourth mold 400 extending toward the first mold 110.

[0062] Therefore, the second linear driver 340 is a pneumatic cylinder, and the top surface of the lower mold base 100 is further provided with a shovel base 320 and a second sliding block 330, the second sliding block 330 is slidingly connected with the lower mold base 100, and the driving end of the second linear driver is fixedly connected with one side of the second sliding block 330 through the shovel base 320, and the other side of the second sliding block 330 is fixedly connected with the third mold 300. Since the pneumatic cylinder adopts a direct thrust transmission mode, the stroke length is only limited by the size of the cylinder, so it is easier to realize a long-distance pushing stroke, which can reduce the requirements for the shape and specifications of the third mold 300, reduce the number of components that need to be replaced during the production of new products, and thus effectively reduce the development cost of new products.

[0063] In addition, referring again to Figure 1 and Figure 6 In some embodiments of the present application, the top of the upper mold base 200 is provided with a feeding port 230, and the feeding port 230 is communicated with a mold injection port 220 through a feeding pipe 240.

[0064] The number of the mold injection ports 220 is multiple, and the number of the outlets of the material conveying pipes 240 is consistent with the number of the mold injection ports 220.

[0065] Based on this, the top of the upper die holder 200 is provided with the feeding port 230, the feeding port 230 is communicated with the mold injection port 220 through the material conveying pipe 240, each mold injection port 220 is responsible for filling a specific area, and the local detail molding is complete, thereby improving the quality of product injection molding.

[0066] In addition, referring again to Figure 6 In some embodiments of the present application, the number of the first linear drives 120 is multiple, and the multiple first linear drives 120 are distributed around the first mold 110.

[0067] The first linear drive 120 can be a push rod, the first linear drive 120 passes through the lower die holder 100, and the two ends of the first linear drive 120 are connected to the upper die holder 200 and the base 500, respectively.

[0068] The top surface of the lower die holder 100 can be rectangular, and the number of the first linear drives 120 is four, and the four first linear drives 120 are respectively located at the four corners of the lower die holder 100.

[0069] Based on this, the number of the first linear drives 120 is multiple, and the multiple first linear drives 120 are distributed around the first mold 110, which can ensure smooth closing of the first mold 110 and the second mold 210, avoid size deviation caused by cavity misplacement, and thereby improve the quality of product injection molding.

[0070] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the present application.

Claims

1. An injection molding apparatus characterized by comprising: The utility model relates to a moulding device for injection moulding, which comprises: a lower mould base, a top surface of the lower mould base is provided with a first mould, a first linear actuator and a second linear actuator, a top of the first mould is provided with a first cavity, a top of a first side of the first mould is provided with a first gap, the first gap is communicated with the first cavity; an upper mould base, a bottom surface of the upper mould base is provided with a second mould, the upper mould base is fixedly connected with a driving end of the first linear actuator, the second mould is provided with a mould injection port for injection moulding, a bottom of the second mould is provided with a second cavity matched with the first cavity, a bottom of a side of the second mould close to the first gap is provided with a second gap matched with the first gap, the mould injection port and the second gap are both communicated with the second cavity; a third mould, the third mould is fixedly connected with a driving end of the second linear actuator, a side of the third mould close to the first mould is provided with a third cavity matched with the first gap and the second gap; wherein the first linear actuator is used for driving the upper mould base to approach the lower mould base, so that the first mould is matched with the second mould, and the second linear actuator is used for driving the third mould to approach the first mould, so that the third cavity is matched to close the first gap and the second gap.

2. An injection molding apparatus as defined in claim 1, wherein The utility model further comprises a fourth mould, the fourth mould is movably arranged on the top surface of the lower mould base, the fourth mould and the third mould are respectively located on different sides of the first mould, a top of a side of the first mould close to the fourth mould is provided with a third gap, the third gap is communicated with the first cavity, a bottom of a side of the second mould close to the third gap is provided with a fourth gap matched with the third gap, the fourth gap is communicated with the second cavity, a side of the fourth mould close to the first mould is provided with a fourth cavity matched with the third gap and the fourth gap, and the fourth cavity is used for matched closing of the third gap and the fourth gap.

3. An injection molding apparatus as defined in claim 2, wherein The upper mould base is fixed with an inclined guide pillar, the inclined guide pillar passes through the lower mould base, the fourth mould is fixedly connected with a first sliding block, the first sliding block is in sliding connection with the inclined guide pillar, and a distance between an end of the inclined guide pillar close to the upper mould base and the first mould is less than a distance between an end of the inclined guide pillar away from the upper mould base and the first mould.

4. An injection molding apparatus as defined in claim 3, wherein A moving direction of the third mould is perpendicular to a moving direction of the fourth mould, a moving direction of the second mould is perpendicular to the moving direction of the third mould, and the moving direction of the second mould is perpendicular to the moving direction of the fourth mould.

5. The injection molding apparatus of claim 1, wherein The utility model further comprises a base and a ejector pin, one end of the ejector pin is fixed on the base, and the other end of the ejector pin sequentially passes through the lower mould base and the first mould.

6. An injection molding apparatus as defined in claim 5, wherein A bottom of the lower mould base is provided with springs, and the lower mould base is connected with the base through the springs.

7. An injection molding apparatus as defined in claim 6, wherein The number of the springs is multiple, and the multiple springs are distributed around the ejector pin.

8. The injection molding apparatus of claim 1, wherein The second linear driver is a cylinder, and the top surface of the lower die seat is further provided with a shovel base and a second sliding block in sliding connection with the lower die seat.

9. The injection molding apparatus of claim 1, wherein The top of the upper die seat is provided with a feeding port in communication with the mold injection port through a feeding pipe.

10. The injection molding apparatus of claim 1, wherein The number of the first linear drivers is multiple, and the multiple first linear drivers are distributed around the first mold.

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