An automatic demoulding electronic water pump housing injection molding device

Abstract

The present application relates to the field of injection molding technology, and provides an automatic demoulding electronic water pump housing injection molding device, comprising an injection molding component and a clamping mold component connected to one side of the injection molding component, the clamping mold component comprising a housing mold having a molding space; the housing mold is provided with at least one air inlet that can be connected to the molding space; wherein the clamping mold component is used to push the electronic water pump housing to form a closed space with the inner side of the housing mold after the electronic water pump housing is molded, fill the closed space with gas through the air inlet to detect the air tightness of the electronic water pump housing, and make the electronic water pump housing attached to the housing mold fall off. The automatic demoulding electronic water pump housing injection molding device provided by the present application can make the electronic water pump housing easier to demould, and complete the detection of the air tightness of the electronic water pump housing during the demoulding process, reduce the workload of re-screening in subsequent work, and significantly improve production efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of injection molding, and in particular to an automatic demoulding injection molding device for an electronic water pump housing. Background Art

[0002] Electronic water pump is a water pump commonly used in special vehicles such as new energy vehicles and RVs. It is mainly used for water circulation, cooling or on-board water supply systems.

[0003] The electronic water pump housing injection molding device in the related technology needs to gradually complete the processes of injection molding, demolding, quality inspection, etc. After demolding, it is transported and then quality inspected to screen out unqualified products. The products are repeatedly stacked and dispersed, which is not conducive to improving work efficiency. Summary of the invention

[0004] The embodiment of the present application provides an automatic demoulding device for injection molding of an electronic water pump housing, which can improve the technical problem in the related art that demoulding and quality inspection cannot be completed in one go during the injection molding production of electronic water pump housings, resulting in low work efficiency.

[0005] The embodiment of the present application provides an automatic demoulding electronic water pump housing injection molding device, comprising:

[0006] Injection molded components;

[0007] A mold clamping assembly, the mold clamping assembly is connected to one side of the injection molding assembly, the mold clamping assembly includes a shell mold, the shell mold has a molding space; the shell mold is provided with at least one air inlet that can be connected to the molding space;

[0008] Among them, the mold closing assembly is used to push the electronic water pump housing out to form a closed space with the inner side of the housing mold after the electronic water pump housing is formed in the molding space, fill the closed space with gas through the air inlet duct to detect the airtightness of the electronic water pump housing, and make the electronic water pump housing attached to the housing mold fall off.

[0009] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0010] The automatic demolding electronic water pump housing injection molding device provided in the embodiment of the present application can gradually push the electronic water pump housing away from the housing mold through the mold assembly after the electronic water pump housing is injection-molded, and the air inlet duct fills the gas in the enclosed space formed by the electronic water pump housing and the housing mold, which can not only balance the negative pressure in the enclosed space, but also detect the air tightness of the electronic water pump housing. In this way, the electronic water pump housing can be easier to demold and is not prone to deformation during the demolding process, thereby reducing the loss of the electronic water pump housing injection molding production, and simultaneously completing the air tightness detection of the electronic water pump housing during the demolding process, saving time for subsequent processes, and being able to directly screen out unqualified products, reducing the workload of re-screening in subsequent work, and significantly improving production efficiency.

[0011] In some embodiments, the housing mold includes a concave mold and a convex mold, and the concave mold includes:

[0012] A female mold mounting portion, the female mold mounting portion being detachably connected to the injection molding assembly;

[0013] A concave mold abutment portion, the concave mold abutment portion being arranged on a side of the concave mold mounting portion away from the injection molding component;

[0014] A concave die forming portion, the concave die forming portion being arranged on the concave die abutting portion;

[0015] The punch comprises:

[0016] A male mold mounting portion, the male mold mounting portion is arranged opposite to the female mold mounting portion, the male mold mounting portion is detachably arranged on a side of the female mold mounting portion away from the injection molding component; the male mold mounting portion can move toward or away from the female mold mounting portion;

[0017] A male mold abutting portion, the male mold abutting portion is arranged on a side of the male mold mounting portion close to the female mold abutting portion;

[0018] A male mold forming part, the male mold forming part is arranged on a side of the male mold abutting part close to the injection molding component; the male mold forming part is provided with the air inlet;

[0019] Wherein, the male mold forming part protrudes from the male mold abutting part; when the female mold abutting part abuts against the male mold abutting part, the male mold forming part enters into the female mold forming part, and the male mold forming part and the female mold forming part are spaced apart to form the forming space.

[0020] In other embodiments, the male mold comprises:

[0021] A male mold mounting portion, the male mold mounting portion being detachably connected to the injection molding assembly;

[0022] A male mold abutment portion, the male mold abutment portion is arranged on a side of the male mold mounting portion away from the injection molding component;

[0023] A male mold forming part, the male mold forming part is arranged on a side of the male mold abutting part away from the injection molding component; the male mold forming part is provided with the air inlet;

[0024] The concave mold comprises:

[0025] A female mold mounting portion, the female mold mounting portion is arranged opposite to the male mold mounting portion, the female mold mounting portion is detachably arranged on a side of the male mold mounting portion away from the injection molding component; the female mold mounting portion can move toward or away from the male mold mounting portion;

[0026] A concave die abutment portion, the concave die abutment portion being arranged on a side of the concave die mounting portion close to the convex die abutment portion;

[0027] A concave die forming portion, the concave die forming portion being arranged on the concave die abutting portion;

[0028] Wherein, the male mold forming part protrudes from the male mold abutting part; when the male mold abutting part abuts against the female mold abutting part, the male mold forming part enters into the female mold forming part, and the male mold forming part and the female mold forming part are spaced apart to form the forming space.

[0029] In some embodiments, the mold clamping assembly further comprises:

[0030] A slide rail, the slide rail being arranged on one side of the injection molding component;

[0031] A fixed mold frame, wherein the fixed mold frame is fixedly disposed on the slide rail, and one side of the fixed mold frame is connected to the injection molding component;

[0032] A movable mold frame, wherein the movable mold frame is movably arranged on the slide rail, and the movable mold frame is arranged opposite to the fixed mold frame;

[0033] The die mounting portion is connected to the other side of the fixed die frame, and the punch mounting portion is connected to one side of the movable die frame; or, the punch mounting portion is connected to the other side of the fixed die frame, and the die mounting portion is connected to one side of the movable die frame.

[0034] In some embodiments, the mold clamping assembly further comprises:

[0035] At least one gas cylinder, the gas cylinder is inserted into the air inlet, the end surface of one end of the gas cylinder close to the die mounting portion is flush with the surface of the male mold forming portion, and the end of the gas cylinder close to the die mounting portion is provided with a first gas outlet that can be opened and closed, so that the interior of the gas cylinder can be connected to the enclosed space;

[0036] At least one electric push rod is disposed on the male mold forming portion, and is used to push the electronic water pump housing away from the male mold forming portion.

[0037] In some embodiments, the gas cylinder comprises:

[0038] A cylinder, wherein the cylinder is fixedly installed in the air inlet, and the outer wall of the cylinder is attached to the inner wall of the air inlet; the cylinder does not protrude from the male mold forming part; the end surface of the cylinder close to the female mold mounting part is on the same plane as the surface of the male mold forming part; the opening of the cylinder close to the female mold mounting part is the first air outlet; the end of the cylinder away from the female mold mounting part is provided with a first air inlet;

[0039] a plug rod, the plug rod being inserted through the cylinder body and being movable along the axis direction of the cylinder body; the outer diameter of the plug rod being the same as the inner diameter of the first air outlet, the end surface of the plug rod close to the die mounting portion being on the same plane as the surface of the male die forming portion; and the plug rod not protruding from the male die forming portion;

[0040] Among them, the inner diameter of the middle part of the cylinder is larger than the outer diameter of the plug rod, so that an air intake space is formed between the outer wall of the plug rod and the inner wall of the cylinder; the plug rod can move in a direction away from the die mounting portion, so that the air intake space is connected with the enclosed space through the first air outlet, and the first air outlet of the cylinder serves as a gas output end to output gas into the enclosed space.

[0041] In some embodiments, the gas cylinder further includes a first air pressure detection device, which is disposed inside the cylinder and is used to detect the air pressure in the enclosed space.

[0042] In some embodiments, the mold clamping assembly further comprises:

[0043] a first marking device, the marking device being arranged on the slide rail, the marking device being arranged between the male die and the female die, and the marking device being electrically connected to the first air pressure detection device;

[0044] Wherein, the first marking device is used to mark the electronic water pump housing between the male mold and the female mold when the first air pressure detection device detects that the air pressure in the enclosed space is lower than a preset value.

[0045] In some embodiments, at least one first exhaust channel is provided on the male mold forming portion, the input end of the first exhaust channel is connected to the molding space, and the output end of the first exhaust channel is connected to the first air inlet; the mold clamping assembly further includes:

[0046] a first one-way valve, wherein an input end of the first one-way valve is connected to an output end of the first exhaust passage, and an output end of the first one-way valve is connected to the first air inlet;

[0047] Among them, the first one-way valve is used to allow the gas in the molding space to be discharged smoothly, and the discharged gas is stored in the cylinder. After the electronic water pump housing is molded, the cylinder outputs the stored gas to the enclosed space to detect the airtightness of the electronic water pump housing.

[0048] In some embodiments, the mold clamping assembly includes:

[0049] At least one telescopic air pipe, the telescopic air pipes are arranged in a one-to-one correspondence through the air inlet; one end of the telescopic air pipe close to the die mounting portion is a closed end, and the end surface of the telescopic air pipe close to the die mounting portion is flush with the surface of the male mold forming portion; a second air outlet is opened on the side wall of the telescopic air pipe, and the second air outlet is close to the closed end of the telescopic air pipe; a second air inlet is arranged at one end of the telescopic air pipe away from the die mounting portion;

[0050] The telescopic air pipe is movable so that the second air outlet of the telescopic air pipe protrudes from the male mold forming part, the telescopic air pipe pushes the electronic water pump housing away from the male mold forming part to form the enclosed space, and the second air outlet can be connected to the enclosed space.

[0051] In some embodiments, at least one second exhaust channel is provided on the male mold forming portion, the input end of the second exhaust channel is connected to the molding space, and the output end of the second exhaust channel is connected to the air inlet; the mold clamping assembly further includes:

[0052] a second one-way valve, wherein an input end of the second one-way valve is connected to an output end of the second exhaust passage, and an output end of the second one-way valve is connected to the second air inlet;

[0053] Among them, the second one-way valve is used to allow the gas in the molding space to be discharged smoothly, and the discharged gas is stored in the telescopic air pipe. The telescopic air pipe can output the stored gas to the enclosed space after the electronic water pump housing is molded to detect the air tightness of the electronic water pump housing.

[0054] In some embodiments, the telescopic air tube includes a second air pressure detection device, which is disposed in the telescopic air tube and is used to detect the air pressure in the enclosed space.

[0055] In some embodiments, the mold clamping assembly further comprises:

[0056] a second marking device, the marking device being disposed on the slide rail, the marking device being disposed between the male die and the female die, and the marking device being electrically connected to the second air pressure detection device;

[0057] Wherein, the second marking device is used to mark the electronic water pump housing between the male mold and the female mold when the second air pressure detection device detects that the air pressure in the enclosed space is lower than a preset value. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0059] Figure 1 A schematic structural diagram of an automatic demoulding electronic water pump housing injection molding device provided in an embodiment of the present application;

[0060] Figure 2 A cross-sectional view of a male die and a female die provided in an embodiment of the present application when they are in contact;

[0061] Figure 3 A cross-sectional view of the electronic water pump housing provided in the embodiment of the present application when it is sleeved on the male mold forming portion;

[0062] Figure 4 A schematic diagram of the structure of the male mold provided in the embodiment of the present application;

[0063] Figure 5 A schematic diagram of the structure of the concave mold provided in an embodiment of the present application;

[0064] Figure 6 A schematic diagram of the structure in which the first air outlet on the male mold provided in an embodiment of the present application is opened;

[0065] Figure 7 A schematic diagram of a structure in which the second air outlet on the male mold is opened according to another embodiment of the present application;

[0066] Figure 8 A schematic structural diagram of another perspective of the male mold provided in an embodiment of the present application.

[0067] Among them, the reference numerals in the figure are:

[0068] 100. Automatic demoulding electronic water pump housing injection molding device; 10. Injection molding assembly; 20. Clamping assembly; 201. Housing mold; 2011. Molding space; 2012. Concave mold; 20121. Concave mold mounting portion; 20122 Concave mold abutment portion; 20123. Concave mold molding portion; 2013. Convex mold; 20131. Convex mold mounting portion; 20132. Convex mold abutment portion; 20133. Convex mold molding portion; 201331 , air inlet; 201332, first exhaust duct; 202, enclosed space; 203, slide rail; 204, fixed mold frame; 205, movable mold frame; 206, air cylinder; 2061, cylinder body; 20611, first air outlet; 2062, plug rod; 207, electric push rod; 208, first marking device; 209, first one-way valve; 210, telescopic air pipe; 2101, second air outlet; 200, electronic water pump housing. DETAILED DESCRIPTION

[0069] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0070] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0071] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0072] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present application.

[0073] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0074] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0075] It should be noted that, in the present application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the present application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example", etc. is intended to present related concepts in a concrete way, meaning that specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the above words in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0076] Electronic water pump is a water pump commonly used in special vehicles such as new energy vehicles and RVs. It is mainly used for water circulation, cooling or on-board water supply systems.

[0077] The electronic water pump housing injection molding device in the related technology needs to gradually complete the processes of injection molding, demolding, quality inspection, etc. After demolding, it is transported and then quality inspected to screen out unqualified products. The products are repeatedly stacked and dispersed, which is not conducive to improving work efficiency.

[0078] Based on this, in order to improve the problem of low work efficiency caused by the inability to complete demolding and quality inspection in one go during the injection molding production of electronic water pump housing in the related art, the embodiment of the present application provides the following solution.

[0079] Please also read Figures 1 to 3The embodiment of the present application provides an automatic demolding electronic water pump housing injection molding device 100, which includes an injection molding component 10 and a clamping component 20, wherein the clamping component 20 is connected to one side of the injection molding component 10, and the clamping component 20 includes a housing mold 201, and the housing mold 201 has a molding space 2011; the housing mold 201 is provided with at least one air inlet 201331 that can be connected to the molding space 2011; wherein the clamping component 20 is used to push the electronic water pump housing 200 to form a closed space 202 with the inner side of the housing mold 201 after the electronic water pump housing 200 is molded in the molding space 2011, and fill the closed space 202 with gas through the air inlet 201331 to detect the air tightness of the electronic water pump housing 200, and make the electronic water pump housing 200 attached to the housing mold 201 fall off.

[0080] It can be understood that the electronic water pump housing 200 is a component used to protect the internal electronic and mechanical structures of the electronic water pump, and needs to have good waterproof performance. During the injection molding process, the electronic water pump housing 200 is easily shrunken due to cooling and is stuck on the convex mold 2013 of the housing mold 201. Due to the waterproof performance of the electronic water pump housing 200, the intact electronic water pump housing 200 is tightly fitted with the housing mold 201, and negative pressure is formed when it is removed, resulting in difficulty in demoulding. The injection molding component 10 can be a combination of devices including a hopper, a feed heating section, a screw barrel, a nozzle, and an injection cylinder, and is a mechanism for melting and conveying plastic raw materials and injecting them into the mold. The clamping assembly 20 can be a combination of devices including guide rails, a drive motor, a movable template, and a fixed template, and is a mechanism for carrying a mold and being able to fix and lock the mold so that the injected molten plastic does not leak. The nozzle of the injection molding component 10 can be manually inserted into the sprue bushing of the shell mold 201 to connect the injection molding component 10 with the clamping mold component 20; the nozzle of the injection molding component 10 can also be inserted into the sprue bushing of the shell mold 201 by a robot arm to connect the injection molding component 10 with the clamping mold component 20, but it is not limited thereto. The air inlet 201331 can be controllably opened or closed so that when the plastic is injected into the molding space 2011, the plastic will not enter the air inlet 201331 and block the air inlet 201331. The gas filled into the enclosed space 202 by the air inlet 201331 can be air, carbon dioxide, or helium, but it is not limited thereto. A cover plate can be provided at the connection point between the air inlet 201331 and the enclosed space 202, and the cover plate is connected to the mold through a hinge mechanism. A driving motor is provided on the hinge mechanism to drive the rotating shaft of the hinge mechanism to rotate, thereby driving the cover plate to rotate. The driving motor is controlled by the PLC system so that the cover plate rotates to a closed position during the injection molding process and rotates to an open position when air intake is required; or a hard tube with one end closed can be inserted into the air inlet 201331, and an air outlet is provided on the side of the hard tube near the closed end. A spiral worm is provided on the side of the hard tube away from the enclosed space 202, and a turbine driven by a motor is provided on the mold. The motor is also electrically connected to the data processing chip. The data processing chip controls the motor to drive the turbine to rotate so that the hard tube extends into the enclosed space 202. During the injection molding process, the turbine is controlled to rotate so that the end face of the closed end of the hard tube is flush with the end face of the mold. When air intake is required, the turbine rotates so that the hard tube moves to the air outlet and connects to the enclosed space 202, but is not limited to this. The air tightness of the electronic water pump housing 200 can be detected by providing an air pressure detection device. For example, an air pressure sensor can be provided in the air intake duct 201331, and the air pressure of the air intake duct 201331 and the enclosed space 202 can be detected by using the signal of the air pressure sensor. It can be determined whether there is a leak in the electronic water pump housing 200 based on the detected air pressure; or a pressure gauge can be connected to the air intake duct 201331, and it can be determined whether there is a leak in the electronic water pump housing 200 based on the reading of the pressure gauge, but the present invention is not limited to this.

[0081] From the above, it can be seen that the automatic demolding electronic water pump housing injection molding device 100 provided in the embodiment of the present application, after the electronic water pump housing 200 is injection molded, the electronic water pump housing 200 is gradually pushed away from the housing mold 201 through the mold clamping assembly 20, and the air inlet duct 201331 is filled with gas in the enclosed space 202 formed by the electronic water pump housing 200 and the housing mold 201, which can not only balance the negative pressure of the enclosed space 202, but also detect the air tightness of the electronic water pump housing 200. In this way, the electronic water pump housing 200 can be easier to demold and is not prone to deformation during the demolding process, thereby reducing the loss of the injection molding production of the electronic water pump housing 200. During the demolding process, the air tightness detection of the electronic water pump housing 200 is simultaneously completed, saving the time of subsequent processes, and being able to directly screen out unqualified products, reducing the workload of re-screening in subsequent work, and significantly improving production efficiency.

[0082] In some embodiments, please refer to Figures 1 to 5 The housing mold 201 includes a die 2012 and a punch 2013. The die 2012 includes a die mounting portion 20121, a die abutting portion 20122 and a die forming portion 20123. The die mounting portion 20121 is detachably connected to the injection molding component 10. The die abutting portion 20122 is arranged on a side of the die mounting portion 20121 away from the injection molding component 10. The die forming portion 20123 is arranged on the die abutting portion 20122. The punch 2013 includes a punch mounting portion 20131, a punch abutting portion 20132 and a punch forming portion 20133. The punch mounting portion 20131 is arranged opposite to the die mounting portion 20121. The punch mounting portion 20131 is detachably arranged on the side of the die mounting portion 20121 away from the injection molding component 10. The male mold mounting portion 20131 is capable of moving toward or away from the female mold mounting portion 20121; the male mold abutting portion 20132 is arranged on the side of the male mold mounting portion 20131 close to the female mold abutting portion 20122; the male mold forming portion 20133 is arranged on the side of the male mold abutting portion 20132 close to the injection molding component 10; the male mold forming portion 20133 is provided with an air inlet 201331; wherein, the male mold forming portion 20133 protrudes from the male mold abutting portion 20132; when the female mold abutting portion 20122 abuts against the male mold abutting portion 20132, the male mold forming portion 20133 enters into the female mold forming portion 20123, and the male mold forming portion 20133 is spaced apart from the female mold forming portion 20123 to form a forming space 2011.

[0083] It can be understood that the die mounting portion 20121 and the punch mounting portion 20131 are structures for mounting the die 2012 and the punch 2013 on the template respectively. The die mounting portion 20121 and the punch mounting portion 20131 can be a circular plate-like structure or a square plate-like structure, but are not limited to this. A plurality of mounting holes are provided on one side of the die mounting portion 20121 and the punch mounting portion 20131 connected to the template. The die mounting portion 20121 and the punch mounting portion 20131 can be detachably connected to the template by a locating pin or a locating block, and can also be connected to the template by bolts, but are not limited to this. The die abutting portion 20122 and the punch abutting portion 20132 are structures used to abut against each other to keep the molding space 2011 closed. The die abutting portion 20122 can be a block structure or a columnar structure protruding from the die mounting portion 20121. The die abutting portion 20122 can be welded to the die mounting portion 20121, or it can be integrally processed and formed with the die mounting portion 20121, but is not limited to this; the punch abutting portion 20132 can be a block structure or a columnar structure protruding from the punch mounting portion 20131. The punch abutting portion 20132 can be welded to the punch mounting portion 20131, or it can be integrally processed and formed with the punch mounting portion 20131, but is not limited to this. The female die forming part 20123 and the male die forming part 20133 are structures for jointly forming a forming space 2011 and defining the shape of the product. The female die forming part 20123 is a groove opened in the female die abutting part 20122, and the shape of the groove can be embedded with the outer side surface of the electronic water pump housing 200; the male die forming part 20133 is a structure arranged on the male die abutting part 20132, and the male die forming part 20133 can be embedded with the inner side surface of the electronic water pump housing 200. The male die forming part 20133 can be integrally processed and formed with the male die abutting part 20132, or can be welded on the male die abutting part 20132 close to the female die mounting part 20121, but is not limited to this. The end face of the female mold forming part 20123 is between the end face of the female mold abutting part 20122 and the end face of the female mold mounting part 20121, and the end face of the male mold forming part 20133 is on the side of the male mold forming part 20133 away from the male mold mounting part 20131. When the female mold mounting part 20121 is connected to the injection molding component 10, the female mold 2012 serves as an immovable fixed mold, and the male mold 2013 serves as a movable fixed mold, and the female mold mounting part 20121 is connected to the injection molding component 10 through a sprue bushing.

[0084] In other embodiments, the punch 2013 includes a punch mounting portion 20131, a punch abutting portion 20132 and a punch molding portion 20133, the punch mounting portion 20131 is detachably connected to the injection molding component 10; the punch abutting portion 20132 is arranged on the side of the punch mounting portion 20131 away from the injection molding component 10; the punch molding portion 20133 is arranged on the side of the punch abutting portion 20132 away from the injection molding component 10; the punch molding portion 20133 is provided with an air inlet 201331; the die 2012 includes a die mounting portion 20121, a die abutting portion 20122 and a die molding portion 20123, the die mounting portion 20121 is arranged opposite to the punch mounting portion 20131, and the die mounting portion 20122 is arranged opposite to the punch mounting portion 20131. 0121 is detachably arranged on the side of the punch mounting part 20131 away from the injection molding component 10; the die mounting part 20121 can move toward or away from the punch mounting part 20131; the die abutting part 20122 is arranged on the side of the die mounting part 20121 close to the punch abutting part 20132; the die molding part 20123 is arranged on the die abutting part 20122; wherein, the punch molding part 20133 protrudes from the punch abutting part 20132; when the punch abutting part 20132 abuts against the die abutting part 20122, the punch molding part 20133 enters into the die molding part 20123, and the punch molding part 20133 is spaced apart from the die molding part 20123 to form a molding space 2011.

[0085] It can be understood that when one of the male mold 2013 and the female mold 2012 is connected to the injection molding component 10 as a fixed mold, the other one is used as a movable mold.

[0086] With such arrangement, both the punch 2013 and the die 2012 can be installed as fixed molds and connected to the injection molding component 10. The air inlet duct 201331 is opened in the punch molding part 20133. Since the automobile water pump housing will shrink during molding and cooling and can be easily fitted on the punch molding part 20133, the air inlet duct 201331 can be connected to the enclosed space 202 formed by the automobile water pump housing and the punch molding part 20133. In this way, an assembly plan can be formulated according to the actual situation of the equipment, thereby improving the overall assembly flexibility of the clamping assembly 20 and reducing the equipment maintenance cost.

[0087] Optionally, in some embodiments, see Figure 1The mold clamping assembly 20 also includes a slide rail 203, a fixed mold frame 204 and a movable mold frame 205, the slide rail 203 is arranged on one side of the injection molding assembly 10; the fixed mold frame 204 is fixedly arranged on the slide rail 203, and one side of the fixed mold frame 204 is connected to the injection molding assembly 10; the movable mold frame 205 is movably arranged on the slide rail 203, and the movable mold frame 205 is arranged opposite to the fixed mold frame 204; wherein, the die mounting portion 20121 is connected to the other side of the fixed mold frame 204, and the punch mounting portion 20131 is connected to one side of the movable mold frame 205; or, the punch mounting portion 20131 is connected to the other side of the fixed mold frame 204, and the die mounting portion 20121 is connected to one side of the movable mold frame 205.

[0088] It can be understood that the slide rail 203 is a structure for carrying the fixed mold frame 204 and the mobile mold frame 205, so that the mobile mold frame 205 can move along the slide rail 203. The mobile mold frame 205 is a structure for installing a movable mold and driving the movable mold to move. The slide rail 203 can be composed of a plurality of slide rods, and a driving motor and a roller can be provided on the mobile mold frame 205. The power output end of the driving motor is connected to the roller, and the roller is in rolling contact with the slide rail 203. The roller is driven to rotate by the driving motor, so that the mobile mold frame 205 can move on the slide rail 203; or the slide rail 203 can be composed of at least one worm, and a turbine matched with the worm is provided on the mobile mold frame 205, and a driving motor is also provided. The power output end of the driving motor is connected to the turbine, and the turbine is driven to rotate by the driving motor, so that the mobile mold frame 205 can move along the slide rail 203, but it is not limited thereto.

[0089] In this way, by setting one of the punch 2013 or the die 2012 on the movable mold frame 205 and the other on the fixed mold frame 204, the movable mold frame 205 can be moved to bring the punch 2013 and the die 2012 closer to complete the injection molding process, and the punch 2013 and the die 2012 can be moved away to complete the demolding, and the injection-molded electronic water pump housing 200 can be removed, thereby ensuring the stability of the punch 2013 and the die 2012 during relative movement, effectively extending the service life of the mold, improving the production accuracy of the electronic water pump housing 200, reducing manual intervention, and reducing operational risks in the injection molding process.

[0090] Optionally, see Figures 2 to 4 ,as well as Figure 6The clamping assembly 20 also includes at least one air cylinder 206 and at least one electric push rod 207. The air cylinder 206 is inserted into the air inlet 201331. The end face of the air cylinder 206 close to the die mounting portion 20121 is flush with the surface of the male mold forming portion 20133. The end of the air cylinder 206 close to the die mounting portion 20121 is provided with a first air outlet 20611 that can be opened and closed, so that the interior of the air cylinder 206 can be connected to the enclosed space 202; the electric push rod 207 is arranged in the male mold forming portion 20133, and the electric push rod 207 is used to push the electronic water pump housing 200 away from the male mold forming portion 20133.

[0091] It can be understood that the electric push rod 207 can be inserted into the male mold forming part 20133 and can move toward the female mold forming part 20123. The electric push rod 207 can be composed of a plurality of sleeves with different diameters, wherein the plurality of sleeves are respectively provided with mutually matching gears and racks, and a signal receiver and a drive motor are also provided, wherein the signal receiver can receive a signal to start or stop the drive motor, and the power output end of the drive motor is connected to the gear to rotate the gear, thereby driving the sleeve provided with the rack to move, realizing the telescopic function, and pushing the electronic water pump housing 200 away from the male mold forming part 20133; the electric push rod 207 can also be composed of a cylinder body, a piston moving in the cylinder body, and a push rod connected to the piston, wherein the cylinder body is connected to the air supply device, and the piston and the movement of the push rod are controlled by controlling the air pressure of the two air chambers in the cylinder body, so as to push the electronic water pump housing 200 away from the male mold forming part 20133, but it is not limited thereto.

[0092] With such arrangement, after the electronic water pump housing 200 is formed in the forming space 2011, the electronic water pump housing 200 is fitted on the male mold forming part 20133, and the electronic water pump housing 200 is pushed out in a direction away from the male mold mounting part 20131 by the electric push rod 207, so that the inner wall of the electronic water pump housing 200 and the male mold forming part 20133 form a closed space 202, and then gas is input into the closed space 202 through the gas cylinder 206 to eliminate the negative pressure in the closed space 202, and further make the pressure in the closed space 202 greater than the external pressure, so as to detect the air tightness of the electronic water pump housing 200, so that the electronic water pump housing 200 can be prevented from being deformed during the demolding process, thereby improving the product quality, and reducing the force required for the electric push rod 207 to push the electronic water pump housing 200, thereby reducing the difficulty of demolding the electronic water pump housing 200 and improving the working efficiency of the demolding process.

[0093] In some embodiments, see Figure 4 and Figure 6The gas cylinder 206 includes a cylinder body 2061 and a plug rod 2062. The cylinder body 2061 is fixedly inserted into the air inlet 201331, and the outer wall of the cylinder body 2061 is attached to the inner wall of the air inlet 201331; the cylinder body 2061 does not protrude from the male mold forming part 20133; the end surface of the cylinder body 2061 close to the female mold mounting part 20121 is on the same plane as the surface of the male mold forming part 20133; the opening of the end of the cylinder body 2061 close to the female mold mounting part 20121 is a first air outlet 20611; the end of the cylinder body 2061 away from the female mold mounting part 20121 is provided with a first air inlet; the plug rod 2062 is inserted into the cylinder body 2061, and the plug rod 2062 can move along the axial direction of the cylinder body 2061; the plug rod The outer diameter of 2062 is the same as the inner diameter of the first air outlet 20611, and the end face of the plug rod 2062 close to the die mounting portion 20121 can be on the same plane as the surface of the male mold forming portion 20133; the plug rod 2062 does not protrude from the male mold forming portion 20133; wherein, the inner diameter of the middle part of the cylinder 2061 is larger than the outer diameter of the plug rod 2062, so that an air intake space is formed between the outer wall of the plug rod 2062 and the inner wall of the cylinder 2061; the plug rod 2062 can move in a direction away from the die mounting portion 20121, so that the air intake space is connected to the confined space 202 through the first air outlet 20611, and the first air outlet 20611 of the cylinder 2061 serves as a gas output end to output gas into the confined space 202.

[0094] It can be understood that the first air inlet is a structure for connecting to the air supply device and inputting gas into the cylinder 2061, and can be set on the end surface of the cylinder 2061 away from the die mounting portion 20121, or can be set on the side of the cylinder 2061 away from the die mounting portion 20121. The length of the plug rod 2062 can be less than the length of the cylinder 2061, or can be greater than or equal to the length of the cylinder 2061. When the length of the plug rod 2062 is less than the length of the cylinder 2061, the end of the cylinder 2061 close to the die mounting portion 20121 is an annular first air outlet 20611; when the length of the plug rod 2062 is greater than or equal to the length of the cylinder 2061, the two ends of the cylinder 2061 can be annular structures, and the shape of the hollow part of the annular structure is the same as the cross-sectional shape of the plug rod 2062, so that the plug rod 2062 can completely block the two ends of the cylinder 2061. A gear driven by a motor can be arranged inside the cylinder 2061, a data processing chip can be arranged on the motor, and a rack matched with the gear can be arranged on the plug rod 2062. By sending a signal to the data processing chip, the data processing chip sends the signal to the motor, and the motor drives the gear to rotate, and then drives the rack to move, so as to control the movement of the plug rod 2062; or the middle part of the plug rod 2062 can be arranged as a worm, and a turbine matched with the worm can be arranged in the cylinder 2061, and a motor controlled by the MCU is arranged to drive the turbine to rotate, so that the plug rod 2062 can move under the drive of the turbine, but it is not limited to this.

[0095] In this way, by controlling the movement of the plug rod 2062, the air intake space in the cylinder 2061 is connected or disconnected with the enclosed space 202. During the injection molding process of the electronic water pump housing 200, the plug rod 2062 is controlled to move until the end face of the plug rod 2062 close to the die mounting portion 20121 can be on the same plane as the surface of the male mold forming portion 20133, so that the air intake space is disconnected from the enclosed space 202, and plastic will not enter the air intake space and affect the quality of the electronic water pump housing 200; after the electronic water pump housing 200 is injection molded, the electric push rod 207 pushes the electronic water pump housing 200 out, so that a enclosed space 202 is formed between the electronic water pump housing 200 and the male mold forming portion 20133, and the plug rod 2062 is controlled to move in a direction away from the die mounting portion 20121, so that the air intake space is connected with the enclosed space 202, and the gas enters the air intake space in the cylinder 2061 through the air inlet, and then enters the enclosed space 202. In this way, without affecting the injection molding of the electronic water pump housing 200 , gas can be input into the closed space 202 between the electronic water pump housing 200 and the male molding part 20133 to assist demolding and check the air tightness of the electronic water pump housing 200 .

[0096] Optionally, in some embodiments, the gas cylinder 206 further includes a first air pressure detection device, which is disposed in the cylinder body 2061 and is used to detect the air pressure in the enclosed space 202 .

[0097] It can be understood that the first air pressure detection device can be an air pressure sensor arranged in the cylinder 2061, or it can be a barometer arranged in the cylinder 2061, and the input end of the barometer is connected to the first air inlet to obtain the air pressure inside the cylinder 2061 and the enclosed space 202, but it is not limited to this.

[0098] With such an arrangement, by means of the first air pressure detection device arranged in the cylinder 2061, when the air intake space in the cylinder 2061 is connected with the confined space 202, the air pressure in the confined space 202 can be detected to prevent excessive gas input into the confined space 202 from causing the air pressure to be excessive and damaging the housing of the electronic water pump. It is also possible to observe whether the air pressure value detected by the first air pressure detection device continues to decrease. If the air pressure in the confined space 202 continues to decrease, it can be determined that a leak has occurred in the confined space 202 and that the housing of the electronic water pump is incomplete; if the air pressure in the confined space 202 can be maintained unchanged, it can be determined that the confined space 202 is closed and the housing of the electronic water pump is intact.

[0099] Optionally, see Figure 1The clamping assembly 20 also includes a first marking device 208, which is arranged on the slide rail 203, and the first marking device 208 is arranged between the punch 2013 and the die 2012, and the first marking device 208 is electrically connected to the first air pressure detection device; wherein, the first marking device 208 is used to mark the electronic water pump housing 200 between the punch 2013 and the die 2012 when the first air pressure detection device detects that the air pressure in the confined space 202 is lower than a preset value.

[0100] It can be understood that the first marking device 208 can be set on the slide rail 203 through the slide. The preset value of the air pressure in the confined space 202 is a pre-set air pressure value. After the air cylinder 206 inputs gas into the confined space 202, the confined space 202 should be able to maintain the preset air pressure unchanged without leakage. If the air pressure value in the confined space 202 is lower than the preset value, it can be determined that the electronic water pump housing 200 molded by injection molding is incomplete. When the first air pressure detection device detects that the air pressure in the confined space 202 is lower than the preset value, the first air pressure detection device sends a signal to the first marking device 208, and the first marking device 208 marks the injection molded electronic water pump housing 200 according to the signal of the first air pressure detection device. The mark of the electronic water pump housing 200 by the first marking device 208 can be a notch, a preset color sprayed on, or a mark left on the electronic water pump housing 200 by high temperature, but is not limited to this. The first marking device 208 may include a signal receiving and processing component and an execution component, wherein the signal receiving and processing component is used to convert the signal of the first air pressure detection device into an electrical signal, and activate the execution component to perform a marking action through the electrical signal. The signal receiving and processing component is electrically connected to the first air pressure detection device and the execution component respectively, and the signal receiving and processing component may be an MCU or a radio receiver, but is not limited thereto. The execution component may include a mechanical arm with a sharp tool at the end, and upon receiving the electrical signal of the signal receiving and processing component, the mechanical arm starts and pushes the sharp tool toward the unqualified electronic water pump housing 200, leaving a mark; the execution component may also include a paint nozzle, a paint pump and a paint can, and the electrical signal of the signal receiving and processing component can activate the paint pump, and spray the paint in the paint can through the paint nozzle onto the unqualified electronic water pump housing 200 to complete the marking, but is not limited thereto.

[0101] With such arrangement, the leaking electronic water pump housing 200 can be screened and marked through the first air pressure detection device and the first marking device 208, and the qualified products and unqualified products can be classified while completing the demolding process. This can quickly identify problems, adjust production parameters or repair equipment in time, reduce the defective product rate, reduce the subsequent steps that require separate quality inspections, shorten the production cycle, and improve production efficiency.

[0102] In some embodiments, see Figure 4 , Figure 6 and Figure 8 At least one first exhaust channel 201332 is provided on the male mold forming part 20133, the input end of the first exhaust channel 201332 is connected to the molding space 2011, and the output end of the first exhaust channel 201332 is connected to the first air inlet; the clamping assembly 20 also includes a first one-way valve 209, the input end of the first one-way valve 209 is connected to the output end of the first exhaust channel 201332, and the output end of the first one-way valve 209 is connected to the first air inlet; wherein, the first one-way valve 209 is used to allow the gas in the molding space 2011 to be discharged smoothly, and the discharged gas is stored in the cylinder 2061, and the cylinder 2061 outputs the stored gas to the enclosed space 202 after the electronic water pump housing 200 is formed to detect the air tightness of the electronic water pump housing 200.

[0103] It can be understood that the first exhaust channel 201332 is opened on the male mold molding part 20133 at the position farthest from the plastic injection port, which is also the end of the plastic melt flow, so as to discharge the gas in the molding space 2011 in time during the injection of the plastic melt, so that the plastic melt can fully fill the molding space 2011.

[0104] With such arrangement, during the injection molding process, the gas in the molding space 2011 is pressed into the air intake space of the cylinder 2061 through the first one-way valve 209, and will not flow back into the molding space 2011 due to the increase in pressure in the air intake space. The gas exhausted from the molding space 2011 is input into the enclosed space 202 through the air intake space for reuse, which can simplify the structure of the electronic water pump housing injection molding device, and does not need to be assembled or a small air supply device is assembled to meet the gas demand for detecting the air tightness of the electronic water pump housing 200, saving the energy cost required for supplying gas, effectively reducing the assembly cost and maintenance cost of the injection molding device, and making the injection molding device easier to operate.

[0105] In some embodiments, see Figure 7The mold clamping assembly 20 includes at least one telescopic air pipe 210, and the telescopic air pipes 210 are arranged in a one-to-one correspondence through the air inlet 201331; the end of the telescopic air pipe 210 close to the die mounting portion 20121 is a closed end, and the end surface of the telescopic air pipe 210 close to the die mounting portion 20121 is flush with the surface of the male mold forming portion 20133; a second air outlet 2101 is opened on the side wall of the telescopic air pipe 210, and the second air outlet 2101 is close to the die mounting portion 20121. The closed end of the telescopic air tube 210; a second air inlet is provided at one end of the telescopic air tube 210 away from the die mounting portion 20121; wherein the telescopic air tube 210 can move so that the second air outlet 2101 of the telescopic air tube 210 protrudes from the male mold forming portion 20133, the telescopic air tube 210 pushes the electronic water pump housing 200 away from the male mold forming portion 20133 to form a confined space 202, and the second air outlet 2101 can be connected to the confined space 202.

[0106] It can be understood that after the electronic water pump housing 200 is injection molded, the telescopic air tube 210 can move toward the female mold mounting portion 20121 to push the electronic water pump housing 200 away from the male mold forming portion 20133, and input gas into the enclosed space 202 through the second gas outlet 2101 on the side of the telescopic air tube 210. The telescopic air tube 210 can be a hard air tube with a closed end, made of the same material as the male mold forming portion 20133, such as aluminum alloy or cobalt-chromium alloy, but is not limited thereto. The telescopic air tube 210 can be composed of a tube body, which protrudes from the punch mounting part 20131. A motor-driven pulley is arranged on the end face of the punch mounting part 20131, and the belt is sleeved on the tube body of the telescopic air tube 210. By opening a thread on the side wall of the tube body and a matching thread on the inner wall of the air inlet 201331, the telescopic air tube 210 can rotate under the drive of the belt, and then move along its own axial direction with the cooperation of the thread; the telescopic air tube 210 can also be composed of a plurality of mutually nested tube bodies, and motors, gears and racks are respectively arranged inside the plurality of tube bodies. The motor drives the gear to rotate, and the gear drives the rack to move, thereby driving the two tube bodies to move relative to each other, and the tube body with a smaller diameter can be retracted into or extended into the tube body with a larger diameter, but is not limited to this.

[0107] With such arrangement, when the electronic water pump housing 200 is injection molded, the clamping assembly 20 pushes the electronic water pump housing 200 away from the male mold forming portion 20133 to form a closed space 202 through the telescopic air pipe 210, and inputs gas into the closed space 202 through the second air outlet 2101 of the telescopic air pipe 210 to balance the negative pressure in the closed space 202, and detect the air tightness of the electronic water pump housing 200, thereby preventing the electronic water pump housing 200 from being deformed during the demolding process, improving product quality, and reducing the force required for the electric push rod 207 to push the electronic water pump housing 200 out, thereby reducing the difficulty of demolding the electronic water pump housing 200 and improving the work efficiency of the demolding process.

[0108] In some embodiments, at least one second exhaust duct is provided on the male mold forming portion 20133, the input end of the second exhaust duct is connected to the molding space 2011, and the output end of the second exhaust duct is connected to the air inlet; the mold closing assembly 20 also includes a second one-way valve, the input end of the second one-way valve is connected to the output end of the second exhaust duct, and the output end of the second one-way valve is connected to the second air inlet; wherein, the second one-way valve is used to allow the gas in the molding space 2011 to be discharged smoothly, and the discharged gas is stored in the telescopic air pipe 210, and the telescopic air pipe 210 can output the stored gas to the enclosed space 202 after the electronic water pump housing 200 is formed to detect the air tightness of the electronic water pump housing 200.

[0109] It can be understood that the second one-way valve can adopt the same structure as the first one-way valve 209 in the above embodiment.

[0110] With such arrangement, during the injection molding process, the gas in the molding space 2011 is pressed into the air intake space of the cylinder 2061 through the second one-way valve, and will not flow back into the molding space 2011 due to the increase in pressure in the air intake space. The gas exhausted from the molding space 2011 is input into the closed space 202 through the air intake space for reuse, which can simplify the structure of the injection molding device for the electronic water pump housing, and does not need to be assembled or a small air supply device is assembled to meet the gas demand for detecting the air tightness of the electronic water pump housing 200, saving the energy cost required for supplying gas, effectively reducing the assembly cost and maintenance cost of the injection molding device, and making the injection molding device easier to operate.

[0111] In some embodiments, the telescopic air tube 210 includes a second air pressure detection device, which is disposed in the telescopic air tube 210 and is used to detect the air pressure in the enclosed space 202 .

[0112] It can be understood that the second air pressure detection device can adopt the same structure as the first air pressure detection device in the above embodiment.

[0113] With such an arrangement, by means of the second air pressure detection device arranged in the cylinder 2061, when the air intake space in the cylinder 2061 is connected with the confined space 202, the air pressure in the confined space 202 can be detected to prevent excessive gas input into the confined space 202 from causing damage to the electronic water pump housing due to excessive air pressure. It is also possible to observe whether the air pressure value detected by the second air pressure detection device continues to decrease. If the air pressure in the confined space 202 continues to decrease, it can be determined that a leak has occurred in the confined space 202 and that the electronic water pump housing is incomplete; if the air pressure in the confined space 202 can be maintained unchanged, it can be determined that the confined space 202 is closed and the electronic water pump housing is intact.

[0114] In some embodiments, the clamping assembly 20 also includes a second marking device, the second marking device 208 is arranged on the slide rail 203, the second marking device 208 is arranged between the punch 2013 and the die 2012, and the second marking device 208 is electrically connected to the second air pressure detection device; wherein, the second marking device is used to mark the electronic water pump housing 200 between the punch 2013 and the die 2012 when the second air pressure detection device detects that the air pressure in the confined space 202 is lower than a preset value.

[0115] It can be understood that the second marking device can adopt the same structure as the first marking device 208 in the above embodiment.

[0116] With such arrangement, the leaking electronic water pump housing 200 can be screened and marked by the second air pressure detection device and the second marking device, and the qualified products and unqualified products can be classified while completing the demolding process. This allows problems to be discovered quickly, production parameters to be adjusted or equipment to be repaired in time, thereby reducing the defective product rate, reducing the steps that require separate quality inspections in the future, shortening the production cycle, and improving production efficiency.

[0117] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An automatic demoulding electronic water pump housing injection molding device, characterized in that: include: Injection molded components; A mold clamping assembly, the mold clamping assembly is connected to one side of the injection molding assembly, the mold clamping assembly includes a shell mold, the shell mold has a molding space; the shell mold is provided with at least one air inlet that can be connected to the molding space; The housing mold comprises a concave mold and a convex mold, the concave mold comprises a concave mold abutment portion and a concave mold forming portion, and the concave mold forming portion is arranged on the concave mold abutment portion; The male mold comprises a male mold abutting portion and a male mold forming portion, wherein the male mold forming portion is arranged on a side of the male mold abutting portion close to the injection molding component; the male mold forming portion is provided with the air inlet passage; Wherein, the male mold forming part protrudes from the male mold abutting part; when the female mold abutting part abuts against the male mold abutting part, the male mold forming part enters into the female mold forming part, and the male mold forming part and the female mold forming part are spaced apart to form the forming space; The mold clamping assembly includes at least one electric push rod, which is arranged on the male mold forming part and is used to push the electronic water pump housing away from the male mold forming part; Among them, the mold clamping assembly is used to, after the electronic water pump housing is formed in the molding space, the electronic water pump housing is fitted into the male mold forming part, and the electronic water pump housing is pushed out by the electric push rod so that the inner wall of the electronic water pump housing and the male mold forming part form a closed space, and gas is input into the closed space through the air inlet duct to balance the negative pressure in the closed space, so as to detect the airtightness of the electronic water pump housing and make the electronic water pump housing attached to the housing mold fall off.

2. The automatic demoulding electronic water pump housing injection molding device according to claim 1, characterized in that: The die further comprises a die mounting portion, which is detachably connected to the injection molding component; the die abutment portion is arranged on a side of the die mounting portion away from the injection molding component; The punch also includes a punch mounting portion, which is arranged opposite to the die mounting portion, and the punch mounting portion is detachably arranged on a side of the die mounting portion away from the injection molding component; the punch mounting portion can be moved toward or away from the die mounting portion; and the punch abutting portion is arranged on a side of the punch mounting portion close to the die abutting portion.

3. The automatic demoulding electronic water pump housing injection molding device according to claim 2, characterized in that: The mold clamping assembly also includes: A slide rail, the slide rail being arranged on one side of the injection molding component; A fixed mold frame, wherein the fixed mold frame is fixedly disposed on the slide rail, and one side of the fixed mold frame is connected to the injection molding component; A movable mold frame, wherein the movable mold frame is movably arranged on the slide rail, and the movable mold frame is arranged opposite to the fixed mold frame; The die mounting portion is connected to the other side of the fixed die frame, and the punch mounting portion is connected to one side of the movable die frame; or, the punch mounting portion is connected to the other side of the fixed die frame, and the die mounting portion is connected to one side of the movable die frame.

4. The automatic demoulding electronic water pump housing injection molding device according to claim 3, characterized in that: The mold clamping assembly also includes: At least one air cylinder is provided in the air inlet passage, an end surface of the air cylinder close to the die mounting portion is flush with the surface of the male mold forming portion, and an end of the air cylinder close to the die mounting portion is provided with a first air outlet that can be opened and closed so that the interior of the air cylinder can be connected to the enclosed space.

5. The automatic demoulding electronic water pump housing injection molding device according to claim 4, characterized in that: The gas cylinder comprises: A cylinder, wherein the cylinder is fixedly installed in the air inlet, and the outer wall of the cylinder is attached to the inner wall of the air inlet; the cylinder does not protrude from the male mold forming part; the end surface of the cylinder close to the female mold mounting part is on the same plane as the surface of the male mold forming part; the opening of the cylinder close to the female mold mounting part is the first air outlet; the end of the cylinder away from the female mold mounting part is provided with a first air inlet; a plug rod, the plug rod being inserted through the cylinder body and being movable along the axis direction of the cylinder body; the outer diameter of the plug rod being the same as the inner diameter of the first air outlet, the end surface of the plug rod close to the die mounting portion being on the same plane as the surface of the male die forming portion; and the plug rod not protruding from the male die forming portion; Among them, the inner diameter of the middle part of the cylinder is larger than the outer diameter of the plug rod, so that an air intake space is formed between the outer wall of the plug rod and the inner wall of the cylinder; the plug rod can move in a direction away from the die mounting portion, so that the air intake space is connected with the enclosed space through the first air outlet, and the first air outlet of the cylinder serves as a gas output end to output gas into the enclosed space.

6. The automatic demoulding electronic water pump housing injection molding device according to claim 5, characterized in that: The gas cylinder further comprises a first air pressure detection device, which is disposed inside the cylinder and is used to detect the air pressure in the enclosed space.

7. The automatic demoulding electronic water pump housing injection molding device according to claim 6, characterized in that: The mold clamping assembly also includes: a first marking device, wherein the first marking device is disposed on the slide rail, the first marking device is disposed between the male die and the female die, and the first marking device is electrically connected to the first air pressure detection device; Wherein, the first marking device is used to mark the electronic water pump housing between the male mold and the female mold when the first air pressure detection device detects that the air pressure in the enclosed space is lower than a preset value.

8. The automatic demoulding electronic water pump housing injection molding device according to claim 5, characterized in that: The male mold forming part is provided with at least one first exhaust channel, the input end of the first exhaust channel is connected to the forming space, and the output end of the first exhaust channel is connected to the first air inlet; the mold clamping assembly also includes: a first one-way valve, wherein an input end of the first one-way valve is connected to an output end of the first exhaust passage, and an output end of the first one-way valve is connected to the first air inlet; Among them, the first one-way valve is used to allow the gas in the molding space to be discharged smoothly, and the discharged gas is stored in the cylinder. After the electronic water pump housing is molded, the cylinder outputs the stored gas to the enclosed space to detect the airtightness of the electronic water pump housing.

9. The automatic demoulding electronic water pump housing injection molding device according to claim 3, characterized in that: The mold clamping assembly comprises: At least one telescopic air pipe, the telescopic air pipes are arranged in a one-to-one correspondence through the air inlet; one end of the telescopic air pipe close to the die mounting portion is a closed end, and the end surface of the telescopic air pipe close to the die mounting portion is flush with the surface of the male mold forming portion; a second air outlet is opened on the side wall of the telescopic air pipe, and the second air outlet is close to the closed end of the telescopic air pipe; a second air inlet is arranged at one end of the telescopic air pipe away from the die mounting portion; Wherein, the telescopic air pipe can be moved so that the second air outlet of the telescopic air pipe protrudes from the convex mold forming part, the telescopic air pipe pushes the electronic water pump housing away from the convex mold forming part to form the enclosed space, and the second air outlet can be connected to the enclosed space; and / or At least one second exhaust channel is provided on the male mold forming part, the input end of the second exhaust channel is connected to the forming space, and the output end of the second exhaust channel is connected to the air inlet; the mold clamping assembly also includes: a second one-way valve, wherein an input end of the second one-way valve is connected to an output end of the second exhaust passage, and an output end of the second one-way valve is connected to the second air inlet; Among them, the second one-way valve is used to allow the gas in the molding space to be discharged smoothly, and the discharged gas is stored in the telescopic air pipe. The telescopic air pipe can output the stored gas to the enclosed space after the electronic water pump housing is molded to detect the air tightness of the electronic water pump housing.

10. The automatic demoulding electronic water pump housing injection molding device according to claim 9, characterized in that: The telescopic air pipe comprises a second air pressure detection device, which is arranged in the telescopic air pipe and is used to detect the air pressure in the enclosed space; The mold clamping assembly also includes: a second marking device, the second marking device being arranged on the slide rail, the second marking device being arranged between the male die and the female die, and the second marking device being electrically connected to the second air pressure detection device; Wherein, the second marking device is used to mark the electronic water pump housing between the male mold and the female mold when the second air pressure detection device detects that the air pressure in the enclosed space is lower than a preset value.

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