An injection molding sealed cover plate mold with an exhaust system

Abstract

The present invention discloses an injection molding sealing cover plate mold with an exhaust system, which includes an upper mold assembly comprising an upper inner mold, and an upper inner mold insert is arranged on the upper inner mold; a lower mold assembly comprising a lower inner mold, and a lower inner mold insert is arranged on the lower inner mold; wherein, the upper mold assembly slides along the guide pillar to complete the mold closing operation and the demolding operation with the lower mold assembly; the upper inner mold, the upper inner mold insert, the lower inner mold and the lower inner mold insert together form a mold cavity, and the mold cavity is communicated with the exhaust system. In the mold of the present invention, some inserts adopt a splicing method to form various exhaust gaps, and in combination with exhaust pins, a complete exhaust system is formed, which can minimize the temperature inside the deep cavity and the problem of gas entrapment in the large plane, so that the cavity is evenly filled with glue during product injection molding, the product appearance has no flash and scorching phenomenon, the product deformation is small, the size is stable, the product size accuracy can be guaranteed, the injection molded product has a beautiful appearance, no flash, no scorching, good product accuracy, stable size, and a high qualified rate of assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding sealing cover molds, and particularly to an injection molding sealing cover mold with an exhaust system. Background Art

[0002] The injection molding sealing cover is generally assembled on the front bulkhead and the intermediate shaft of the whole vehicle to play the role of dust prevention, waterproofing, sound insulation and noise reduction. The product shape structure of the injection molding sealing cover is complex. Generally, a hard skeleton is coated with soft rubber, and an inner skeleton is embedded. The mold used has a deep cavity and a large required coating surface, and has extremely high requirements for product dimensional accuracy and appearance.

[0003] The existing molds for producing injection molding sealing covers generally have an incomplete exhaust system, with no exhaust or little exhaust. The products produced have large shape deformation, serious scorching and flash, and unstable dimensions, resulting in the inability of the products to be assembled and sealed. The inner plane of the products is easily scratched, scorched, and has serious trapped air and flash on the plane, making repair difficult.

[0004] Restricted by the product structure, the existing molds are generally processed with one cavity per mold to ensure the product qualification rate. The production efficiency is low, and the structure is not easy to realize automated production. For the above reasons, in order to improve product quality, qualification rate and production efficiency, it is necessary to develop a new injection molding sealing cover mold in reality.

[0005] Although the patent document with the literature number CN216182376U discloses a high-pressure sealing cover injection mold that can be quickly cooled, its mold does not have a sufficient exhaust system and is not suitable for automated operation. Summary of the Invention

[0006] The purpose of the present invention is to provide an injection molding sealing cover mold with an exhaust system to solve the problems of low automation degree, insufficient mold exhaust, and low product quality of the injection molding sealing cover mold.

[0007] The purpose of the present invention can be achieved by the following technical solutions: An injection molding sealing cover mold with an exhaust system, including an upper mold assembly, including an upper inner mold, and the upper inner mold is provided with an upper inner mold insert;

[0008] A lower mold assembly, including a lower inner mold, and the lower inner mold is provided with a lower inner mold insert;

[0009] Wherein, the upper mold assembly slides along the guide pillar to complete the mold closing operation and the demolding operation with the lower mold assembly; the upper inner mold, the upper inner mold insert, the lower inner mold and the lower inner mold insert jointly form a mold cavity, and the mold cavity is connected to the exhaust system.

[0010] Further: The upper mold assembly further includes a top plate, a sprue ejector plate, and a plate A sequentially arranged from top to bottom; a rubber nozzle is embedded in the top plate, and a hole groove corresponding to the rubber nozzle is opened in the sprue ejector plate; a rubber groove is opened in the plate A, and the sprue ejector plate is attached to the plate A to jointly form a glue flow channel; a cavity for the upper inner mold is opened in the plate A; a plurality of injection channels are jointly opened in the plate A and the upper inner mold, and the rubber nozzle is communicated with the cavity through the glue flow channel and the plurality of injection channels.

[0011] Further: The lower mold assembly further includes a bottom plate, two C side plates, and a plate B. The two C side plates are located between the bottom plate and the plate B, and a cavity for the lower inner mold is opened in the plate B.

[0012] Further: A plurality of hook needles are jointly embedded in the top plate and the sprue ejector plate, and the top of each hook needle is aligned with the connection port of each injection channel and the glue flow channel.

[0013] Further: A demolding push assembly is further included. The demolding push assembly includes a thimble bottom plate and a thimble panel;

[0014] The thimble panel is arranged on the upper side of the thimble bottom plate. The thimble bottom plate is connected to the bottom plate, and the thimble bottom plate is further connected with a plurality of support columns;

[0015] The thimble panel is slidably connected to the plurality of support columns. The thimble panel is connected with a plurality of flat thimbles and a plurality of inclined thimbles, and the thimble panel is connected with a plurality of stroke inserts;

[0016] The stroke inserts are embedded in the thimble bottom plate and the bottom plate, and the stroke end of the stroke inserts controls the sliding stroke of the thimble panel;

[0017] When the thimble panel slides, it drives the plurality of flat thimbles and the plurality of inclined thimbles to push the molded product in the cavity.

[0018] Further: The upper inner mold insert is embedded in the upper inner mold. The upper inner mold insert includes an injection channel insert, an upper shaping insert, and an upper splicing insert;

[0019] The lower inner mold insert is embedded in the lower inner mold. The lower inner mold insert includes a lower shaping insert and a lower splicing insert;

[0020] There is an exhaust gap between the upper inner mold insert and the upper inner mold, an exhaust gap between the lower inner mold insert and the lower inner mold, and an exhaust gap between the lower splicing insert and the upper splicing insert.

[0021] Further: An exhaust needle is embedded in the lower shaping insert, and the exhaust needle is communicated with the cavity.

[0022] Further: A plurality of straight side locks are installed between the plate A and the plate B, and the plurality of straight side locks are used to lock the mold closing position of the plate A and the plate B.

[0023] Further: a plurality of stroke screws 1 are connected between the top plate and the nozzle push plate, a plurality of stroke screws 2 are connected between the nozzle push plate and the A plate, and the process of opening the injection molding sealing cover plate mold includes:

[0024] S1: lift the top plate, hook the injection residue, the top plate and the sprue push plate are integrated, the sprue push plate and the A plate are separated at PL1, and the injection residue is removed within the stroke distance of the stroke screw 2;

[0025] S2, continue to lift the top plate, the top plate and the sprue push plate are separated, the top plate and the sprue push plate are opened at PL2, the top plate and the sprue push plate are separated by the stroke distance of the stroke screw 1, and the nozzle is separated from the sprue push plate;

[0026] S3: Continue to lift the top plate, and after the travel distance of the travel screw 1 and the travel distance of the travel screw 2, the A plate and the B plate open the mold at PL3, driving the upper inner mold and the lower inner mold to separate.

[0027] Furthermore: a plurality of buffer springs are arranged between the A plate and the water inlet push plate, each buffer spring is sleeved on the outside of the second stroke screw, and the buffer spring and the second stroke screw maintain relative sliding.

[0028] Beneficial effects of the present invention:

[0029] 1. The mold of the present invention reasonably arranges the upper inner mold and the lower inner mold inserts, and some inserts are spliced ​​to form various exhaust gaps, and combined with exhaust pins, a complete exhaust system is formed, which minimizes the internal temperature of the deep cavity and the problem of gas storage in the large plane, and solves the problem of product biting and straining due to thermal expansion, so that the cavity is evenly injected with glue during product injection molding, the product appearance has no flash and scorch phenomenon, the product deformation is small, the size is stable, the product size accuracy can be guaranteed, the injection molded product has beautiful appearance, no flash, no scorch, good product accuracy, stable size, and high assembly qualification rate.

[0030] 2. The present invention adopts one mold with two cavities. The entire mold has a compact structure and fully utilizes the space. The nozzle positions of the nozzle push plate are consistent, the dispersion and glue flow are well balanced, the mold has high production capacity and is easy to automate, which is conducive to the miniaturization of the automated mold.

[0031] 3. The present invention is provided with a demoulding and pushing assembly, in which a flat ejector pin and an inclined ejector pin push different parts of the molded product, so that the product can be demoulded quickly and conveniently, with a high degree of automation, high demoulding quality and not easy to be damaged.

[0032] 4. The present invention uses a hook to hook out the residual material of the glue injection. The residual material in the glue flow channel and the glue injection channel is hooked by the hook after cooling. The residual material of the glue injection can be taken away by an auxiliary device, which is convenient for realizing the automatic operation and production of the mold.

[0033] 5. The mold of the present invention is opened three times, which facilitates the cleaning of the remaining injection glue and the removal of the product, and enables the automated production of the mold. Description of the Drawings

[0034] Figure 1 It is a schematic diagram of the external structure of an injection molding sealing cover plate mold with an exhaust system according to the present invention;

[0035] Figure 2 It is a schematic diagram of the sectional structure of an injection molding sealing cover plate mold with an exhaust system according to the present invention;

[0036] Figure 3 It is a schematic diagram of the sub-components of an injection molding sealing cover plate mold with an exhaust system according to the present invention;

[0037] Figure 4 It is an exploded schematic diagram of an injection molding sealing cover plate mold with an exhaust system according to the present invention;

[0038] Figure 5 It is a schematic diagram of the exhaust insert pin and the lower molding insert of the present invention;

[0039] Figure 6 It is a schematic diagram of a structure when the mold of the present invention is opened;

[0040] Figure 7 It is another schematic diagram of a structure when the mold of the present invention is opened;

[0041] Figure 8 It is another schematic diagram of a structure when the mold of the present invention is opened;

[0042] Figure 9 It is a schematic diagram of a structure when the product of the present invention is demolded.

[0043] A. Product; A1. Inner skeleton; B. Remaining injection glue;

[0044] 100. Upper mold assembly; 110. Top plate; 120. Sprue push plate; 130. A plate; 131. Glue groove; 132. Glue flow channel; 133. Injection channel 133; 140. Glue nozzle; 141. Locating ring; 150. Upper inner mold; 151. Injection channel 133 insert; 152. Upper molding insert; 153. Upper fitting insert; 160. Hook pin;

[0045] 200. Lower mold assembly; 210. Bottom plate; 220. C side plate; 230. B plate; 240. Lower inner mold; 241. Lower molding insert; 242. Lower fitting insert; 243. Exhaust insert pin;

[0046] 300. Guide pillar;

[0047] 400. Demolding Push Component; 410. Ejector Plate; 420. Ejector Retainer Plate; 430. Support Pillar; 440. Flat Ejector Pin; 450. Inclined Ejector Pin; 460. Stroke Insert;

[0048] 500. Straight Side Lock;

[0049] 600. Stroke Screw One;

[0050] 700. Stroke Screw Two; 710. Buffer Spring; 711. Spring Placement Hole;

[0051] 800. Moving Fixed Rod;

[0052] 900. Trigger Interface. Detailed Embodiment

[0053] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar symbols represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0054] As Figures 1-9 shown, the present invention discloses an injection molding sealed cover mold with an exhaust system, including.

[0055] An injection molding sealed cover mold with an exhaust system, characterized in that it includes:

[0056] An upper mold assembly 100, including an upper inner mold 150, and the upper inner mold 150 is provided with an upper inner mold insert;

[0057] A lower mold assembly 200, including a lower inner mold 240, and the lower inner mold 240 is provided with a lower inner mold insert;

[0058] Among them, the upper mold assembly 100 slides along the guide pillar 300 to complete the mold closing operation and demolding operation with the lower mold assembly 200; the upper inner mold 150, the upper inner mold insert, the lower inner mold 240 and the lower inner mold insert together form a mold cavity; the mold cavity is connected to the exhaust system.

[0059] As Figure 3 , 4 shown, the outer shape structure of the injection molding sealed cover product A is complex, the cavity is deep and the area of the glue-in area is large. There is an inner skeleton A1 embedded in the glue. The injection molding sealed cover is used for assembling on the front apron and the intermediate shaft of the whole vehicle, playing the role of dustproof, waterproof, sound insulation and noise reduction. It is applicable to various vehicle models and has a very wide application. The dimensional accuracy and appearance requirements of the product A are relatively high.

[0060] When processing the injection molded sealing cover product A, sufficient exhaust is required at the same time. Otherwise, the product A produced will have a large deformation in appearance, serious scorching flash, unstable size, resulting in inability to assemble and seal. The inner surface of product A is easily scratched, scorched, and the plane has serious air trapped flash, making repair difficult.

[0061] The mold is provided with an upper inner mold insert and a lower inner mold insert, and an exhaust gap is formed between the inserts. The structure of the upper inner mold insert and the lower inner mold insert is as follows: Figure 2 , 3 As shown, the upper inner mold insert is embedded in the upper inner mold 150, and the upper inner mold insert includes a glue injection channel insert 151, an upper molding insert 152, and an upper splicing insert 153; the lower inner mold insert is embedded in the lower inner mold 240, and the lower inner mold insert includes a lower molding insert 241 and a lower splicing insert 242; an exhaust gap is provided between the upper inner mold insert and the upper inner mold 150, an exhaust gap is provided between the lower inner mold insert and the lower inner mold 240, and an exhaust gap is provided between the lower splicing insert 242 and the upper splicing insert 153.

[0062] like Figure 5 As shown, an exhaust pin 243 is embedded in the lower molding insert 241, and the exhaust pin 243 is connected to the mold cavity.

[0063] The exhaust system of the present application adopts a combination of an inlay structure and an exhaust needle 243, and the exhaust system is arranged on different planes and corners of product A.

[0064] For example:

[0065] A plurality of flat ejector pins 440 and a plurality of inclined ejector pins 450 push the ejection holes of the product A.

[0066] The upper assembled insert 153 and the lower assembled insert 242 adopt a mutually assembled structure, and the inner frame A1 is sleeved on the outside. The assembled structure is not an integrated structure, which is convenient for sleeved inner frame A1 and fully utilizes the structural gap between the upper assembled insert 153 and the lower assembled insert 242 for exhaust.

[0067] The glue injection channel insert 151 is used to improve the structure of the glue injection channel 133 and discharge the gas in the glue injection channel 133 during the glue injection process.

[0068] The upper molding insert 152 and the upper inner mold 150 form an exhaust gap, and the lower molding insert 241 and the lower inner mold 240 form an exhaust gap.

[0069] Adopting a systematic exhaust structure, when product A is injection-molded, the cavity is evenly filled with glue. Product A has no flash and scorching on its appearance, has little deformation, and stable dimensions. It can ensure the dimensional accuracy of product A. The injection-molded product A has a beautiful appearance, no flash, no scorching, good accuracy, stable dimensions, and a high assembly qualification rate. At the same time, the overall mold structure is compact, enabling a two-cavity setup on a small device, that is, a two-mode setting, with high productivity and fully automated production.

[0070] The overall structure of the mold is as Figure 2 、 3 、shown in Figure 4. The upper mold assembly 100 includes a top plate 110, a sprue push plate 120, and a plate A 130 arranged in sequence from top to bottom. The top plate 110 and the sprue push plate 120 are jointly inlaid with a nozzle 140. A locating ring 141 is inlaid between the nozzle 140 and the top plate 110 to position the nozzle 140. The nozzle 140 is movably connected to the sprue push plate 120. During demolding, the nozzle 140 is separated from the sprue push plate 120, facilitating the cleaning of the nozzle 140 and removing the remaining injection glue B.

[0071] The plate A 130 is provided with an upper mold cavity for setting the upper inner mold 150, and the upper inner mold 150 is fixedly connected to the plate A 130.

[0072] A glue groove 131 is opened on the top surface of the plate A 130. When the sprue push plate 120 is in contact with the plate A 130, a glue flow channel 132 is jointly formed. The plate A 130 and the upper inner mold 150 are jointly provided with a plurality of injection channels 133. The nozzle 140 is connected to the mold cavity through the glue flow channel 132 and the plurality of injection channels 133.

[0073] During mold closing, the process of glue flow is as follows: The glue flows from the nozzle 140 into the glue flow channel 132. The glue flow channel 132 divides the glue and distributes it to the injection channels 133. Each mold injection channel 133 can be four as shown in the figure, or can be adjusted according to needs. The glue is injected into the mold cavity from the injection channels 133.

[0074] As Figure 1 、 2 、shown in Figure 4, the lower mold assembly 200 includes a bottom plate 210, two side plates C 220, and a plate B 230. The two side plates C 220 are located between the bottom plate 210 and the plate B 230. The plate B 230 is provided with a lower inner mold cavity for accommodating the lower inner mold 240, and the lower inner mold cavity is used to set the lower inner mold 240. The plate B 230 is fixedly connected to the lower inner mold 240.

[0075] The two side plates C 220 are respectively connected to the bottom plate 210 and the plate B 230, forming a stable connection structure. The two side plates C 220 are arranged oppositely, and the space formed between the two side plates C 220 is used to install the demolding push component 400.

[0076] The structure of the demolding push component 400 is asFigure 3 , 4 As shown, the demolding push component 400 includes a thimble bottom plate 410 and a thimble panel 420; the thimble bottom plate 410 is connected to the bottom plate 210, the thimble panel 420 is arranged on the upper side of the thimble bottom plate 410, the stroke insert 460 is embedded in the thimble bottom plate 410 and the bottom plate 210, the stroke end of the stroke insert 460 is connected to the bottom surface of the thimble panel 420, the stroke insert 460 is externally connected to a pneumatic component, and the stroke end of the stroke insert 460 controls the sliding stroke of the thimble panel 420; the thimble bottom plate 410 is further connected with a plurality of support columns 430, the thimble panel 420 is slidably connected to the plurality of support columns 430, the thimble panel 420 forms a movable connection with the thimble bottom plate 410, and the top plate surface of the thimble panel 420 is connected with a plurality of flat thimbles 440 and a plurality of inclined thimbles 450. When the thimble panel 420 slides, it drives the plurality of flat thimbles 440 and the plurality of inclined thimbles 450 to push the molded product A in the mold cavity.

[0077] As Figure 9 shown, when performing demolding, first open the mold to separate the upper inner mold 150 from the lower inner mold 240. Control the stroke insert 460 by using the pneumatic component. The stroke end of the stroke insert 460 pushes the thimble panel 420, the thimble panel 420 pushes the plurality of flat thimbles 440 and the plurality of inclined thimbles 450, the plurality of flat thimbles 440 and the plurality of inclined thimbles 450 push the molded product A. The flat thimbles 440 are mainly used to push the flat part of the product A, and the inclined thimbles 450 push the inclined surface of the product A to complete the demolding of the product A. After the product A is demolded, control the stroke insert 460 to retract to make the thimble panel 420 return to its original position.

[0078] In order to realize the automation of the mold and automatically remove the injection molding residue B, as Figure 2 , 3 shown, a plurality of hook pins 160 are jointly embedded in the top plate 110 and the gate push plate 120. The top of each hook pin 160 is aligned with the connection port of each injection channel 133 and the runner channel 132. The head of the hook pin 160 can adopt the structure shown in Figure 3 to facilitate hooking the injection molding residue B and can also be adjusted according to needs.

[0079] As Figure 6 , 7 shown, after the injection molding of the product A is completed and cooled and formed, the residues in the runner channel 132 and the injection channel 133 are cooled and hooked by the hook pins 160. During demolding, the gate push plate 120 is separated from the A plate 130, and the injection molding residue B hooked by the hook pins 160 can be taken away by the auxiliary device, which is convenient to realize the automated operation production of the mold.

[0080] Further, a plurality of straight side locks 500 are installed between the A plate 130 and the B plate 230. The plurality of straight side locks 500 are used to lock the mold closing positions of the A plate 130 and the B plate 230, which can keep the positions of the A plate 130 and the B plate 230 accurate when they are closed, prevent deviation, and improve the forming accuracy of the product A.

[0081] To better meet the needs of mold automated production and improve the efficiency and quality of demolding, as Figures 6-8 shown, when the mold is opened, a three-stage mold opening method is adopted:

[0082] For the first mold opening, first lift the top plate 110. At this time, the hook needle 160 hooks the cooled injection residue B, connects the top plate 110 and the sprue ejector plate 120 as a whole, and the top plate 110 drives the sprue ejector plate 120 to lift together. The mold opens at PL1, the sprue ejector plate 120 separates from the A plate 130, and the injection residue B is hooked out from the injection channel 133 and the runner channel 132 and exposed outside. At this time, a nylon buckle machine is installed between the A plate 130 and the B plate 230. The nylon buckle machine connects the A plate 130 and the B plate 230 through the buckle machine interface 900 to keep the A plate 130 and the B plate 230 fixed and prevent mold opening. During the process of the sprue ejector plate 120 rising relative to the A plate 130, the auxiliary device removes the injection residue B within the stroke distance of the second stroke screw 700.

[0083] For the second mold opening, because the injection residue B has been removed, continue to lift the top plate 110. The top plate 110 and the sprue ejector plate 120 will separate. Continue to lift the top plate 110, and the top plate 110 and the sprue ejector plate 120 separate. The top plate 110 and the movable sprue ejector plate 120 open at PL2, and the top plate 110 and the sprue ejector plate 120 separate by the stroke distance of the first stroke screw 600, and the nozzle 140 disengages from the sprue ejector plate 120. The second mold opening can facilitate the cleaning of the residue in the nozzle 140.

[0084] For the third mold opening, continue to lift the top plate 110. When the distance between the top plate 110 and the sprue ejector plate 120 reaches the stroke distance of the first stroke screw 600, and the distance between the sprue ejector plate 120 and the A plate 130 reaches the stroke distance of the second stroke screw 700, the force of the second stroke screw 700 driving the A plate 130 exceeds the set force of the nylon buckle machine, and the A plate 130 and the B plate 230 open at PL3. Because the A plate 130 is fixedly connected to the upper inner mold 150 and the B plate 230 is fixedly connected to the lower inner mold 240, the upper inner mold 150 and the lower inner mold 240 are opened, and the upper inner mold 150 and the lower inner mold 240 are separated. The third mold opening facilitates the removal of the formed product A.

[0085] Further, as Figure 3 、 4As shown, the A plate 130 is provided with spring placement holes 711 corresponding to the springs. A buffer spring 710 is provided between the A plate 130 and the sprue ejector plate 120. Each buffer spring 710 is sleeved outside each second stroke screw 700. The buffer spring 710 slides relative to the second stroke screw 700. The elastic force generated by the buffer spring 710 facilitates the separation of the A plate 130 and the sprue ejector plate 120 during the first mold opening, and it is not easy for the A plate 130 and the sprue ejector plate 120 to adhere to each other.

[0086] Furthermore, as Figure 1 shown, a moving and fixing rod 800 is also connected between the upper mold assembly 100 and the lower mold assembly 200. When the mold needs to be moved as a whole, the upper mold assembly 100 and the lower mold assembly 200 are fixed through the moving and fixing rod 800, which facilitates the movement of the mold. The moving and fixing rod 800 is removed when the mold is in use.

[0087] In the present invention, closely combining with the functions and production requirements of the injection product A, a three-plate mold opening is adopted, and the balance points are used for gating. According to the characteristics of product A, the mold structure is compact, reducing the mold space and quality, meeting the production capacity requirements. The mold adopts a one-mold-two-cavity design. The mold cavity is designed with an insert splicing structure and insert exhaust pinholes to construct an overall exhaust system. At the same time, the insert splicing structure is adopted to reduce the thermal expansion deformation of large inserts, effectively preventing the internal hair pulling of product A caused by thermal expansion. The flatness and surface finish of product A are better, the mold functions smoothly, the dimensions of product A are stable, and the qualified rate of product A is close to 100%.

[0088] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

[0089] It should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0090] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0091] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0092] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

Claims

1. An injection molded sealing cover plate with an exhaust system, Features: include: An upper mold assembly (100) comprises an upper inner mold (150), wherein the upper inner mold (150) is provided with an upper inner mold insert; A lower mold assembly (200) comprises a lower inner mold (240), wherein the lower inner mold (240) is provided with a lower inner mold insert; The upper mold assembly (100) slides along the guide pillar (300) to complete the mold closing operation and demoulding operation with the lower mold assembly (200); the upper inner mold (150), the upper inner mold insert and the lower inner mold (240) and the lower inner mold insert together form a mold cavity, and the mold cavity is connected to the exhaust system; Also included is a demoulding and ejecting assembly (400), wherein the demoulding and ejecting assembly (400) includes an ejector base plate (410) and an ejector face plate (420); An ejector panel (420) is arranged on the upper side of the ejector base plate (410); the ejector base plate (410) is connected to the base plate (210); and the ejector base plate (410) is also connected to a plurality of support columns (430); The ejector panel (420) is slidably connected to a plurality of support columns (430), the ejector panel (420) is connected to a plurality of flat ejectors (440) and a plurality of inclined ejectors (450), and the ejector panel (420) is connected to a plurality of travel inserts (460); The stroke insert (460) is embedded in the ejector base plate (410) and the base plate (210), and the stroke end of the stroke insert (460) controls the sliding stroke of the ejector panel (420); When the ejector panel (420) slides, it drives a plurality of flat ejectors (440) and a plurality of inclined ejectors (450) to push the molded product (A) in the mold cavity; The upper inner mold insert is embedded in the upper inner mold (150), and the upper inner mold insert includes a glue injection channel insert (151), an upper molding insert (152), and an upper splicing insert (153); The lower inner mold insert is embedded in the lower inner mold (240), and the lower inner mold insert includes a lower molding insert (241) and a lower splicing insert (242); An exhaust gap is provided between the upper inner mold insert and the upper inner mold (150), an exhaust gap is provided between the lower inner mold insert and the lower inner mold (240), and an exhaust gap is provided between the lower combined insert (242) and the upper combined insert (153); An exhaust pin (243) is embedded in the lower molding insert (241), and the exhaust pin (243) is connected to the mold cavity.

2. The injection molding sealing cover plate mold with exhaust system according to claim 1, Features: The upper die assembly (100) further includes a top plate (110), a sprue ejector plate (120), and a plate A (130) sequentially arranged from top to bottom; a rubber nozzle (140) is embedded in the top plate (110), and a hole groove corresponding to the rubber nozzle (140) is formed in the sprue ejector plate (120); a rubber groove (131) is formed in the plate A (130), and the sprue ejector plate (120) is attached to the plate A (130) to jointly form a rubber flow channel (132); an upper inner die cavity for accommodating the upper inner die (150) is formed in the plate A (130); a plurality of injection channels (133) are jointly formed by the plate A (130) and the upper inner die (150), and the rubber nozzle (140) communicates with the mold cavity through the rubber flow channel (132) and the plurality of injection channels (133).

3. The injection molding sealing cover plate mold with an exhaust system according to claim 1, characterized in that: The lower die assembly (200) further includes a bottom plate (210), two side plates C (220), and a plate B (230). The two side plates C (220) are located between the bottom plate (210) and the plate B (230), and a lower inner die cavity for accommodating the lower inner die (240) is formed in the plate B (230).

4. The injection molding sealing cover plate mold with an exhaust system according to claim 2, characterized in that: A plurality of crochet needles (160) are jointly embedded in the top plate (110) and the sprue ejector plate (120), and the top of each crochet needle (160) is aligned with the connection port of each injection channel (133) and the rubber flow channel (132).

5. The injection molding sealing cover plate mold with an exhaust system according to claim 4, characterized in that: A plurality of straight side locks (500) are installed between the plate A (130) and the plate B (230), and the plurality of straight side locks (500) are used to lock the mold closing position of the plate A (130) and the plate B (230).

6. The injection molding sealing cover plate mold with an exhaust system according to claim 5, characterized in that: A plurality of stroke screws one (600) are connected between the top plate (110) and the sprue ejector plate (120), and a plurality of stroke screws two (700) are connected between the sprue ejector plate (120) and the plate A (130). The process of opening the injection molding sealing cover plate mold includes: S1: Lift the top plate (110), the crochet needle (160) hooks the injection residue (B), the top plate (110) and the sprue ejector plate (120) are integrated, the sprue ejector plate (120) and the plate A (130) are separated at the mold opening at PL1, and the injection residue (B) is removed within the stroke distance of the stroke screw two (700); S2. Continue to lift the top plate (110), the top plate (110) and the sprue ejector plate (120) are separated, the top plate (110) and the sprue ejector plate (120) are opened at the mold opening at PL2, the top plate (110) and the sprue ejector plate (120) are separated by the stroke distance of the stroke screw one (600), and the rubber nozzle (140) is separated from the sprue ejector plate (120); S3: Continuously lift the top plate (110). After the stroke distances of the first stroke screw (600) and the second stroke screw (700), the A plate (130) and the B plate (230) are separated at PL3, driving the upper inner mold (150) to separate from the lower inner mold (240).

7. An injection molding sealed cover plate mold with an exhaust system according to claim 6, wherein: A plurality of buffer springs (710) are provided between the A plate (130) and the sprue push plate (120). Each buffer spring (710) is sleeved outside the second stroke screw (700), and the buffer spring (710) maintains relative sliding with the second stroke screw (700).

Images