An injection mold for producing a glove box inner cup

Abstract

The application discloses an injection mold for producing a glove box inner pot, which comprises a front mold and a back mold, and a cavity for forming the glove box inner pot is defined between the front mold and the back mold. The glove box inner pot comprises a containing groove and a rotating shaft seat, and the opening of the containing groove and the opening of the rotating shaft seat are arranged along a mold opening direction, and the opening of the containing groove and the opening of the rotating shaft seat are oppositely directed. The mold comprises a fixed mold core and a movable mold core. The outer wall of the fixed mold core is suitable for defining the inner wall of the containing groove. The movable mold core has multiple groups and is movably connected with the mold. After the mold is closed, the multiple groups of the movable mold core are suitable for being combined with each other and defining the outer side inner wall of the cavity. The injection mold for producing the glove box inner pot has the advantages of low injection production cost, short production cycle and low mold manufacturing cost.

Description

Technical Field

[0001] This application relates to the field of injection molding, and in particular to an injection mold for producing glove box inner hoppers. Background Technology

[0002] The glove box compartment is typically rotatably connected to the glove box, helping drivers or passengers to conveniently store and organize small items such as loose change, phone chargers, and car keys. In some models, the glove box compartment can also be used to store important documents such as files, vehicle registration certificates, and insurance policies. The design of the glove box compartment enhances its practicality and convenience, making items inside the vehicle more organized and easier to access. The glove box compartment usually includes the following structure: a receiving slot and a pivot seat. The receiving slot fulfills the core storage function of the glove box compartment, while the pivot seat houses the pivot, enabling a rotatable connection between the glove box compartment and the glove box, allowing for quick opening and closing.

[0003] Currently, glove box inner compartments 100 are typically manufactured using injection molding, such as... Figures 1 to 3 As shown, for ease of molding and demolding, the opening of the receiving groove 103 faces downwards, while the opening of the rotating shaft seat 101 faces upwards. The molding and demolding of the receiving groove 103 and the rotating shaft seat 101 are achieved by setting a sliding slider in the mold and cooperating with the male mold core and the female mold core. However, in actual production, due to the depth of the receiving groove 103 and the complexity of the mechanism of the rotating shaft seat 101, the slider structure of the demolding component is also complex, which increases the volume of the injection mold and causes problems such as high injection molding production cost (requiring the use of a larger injection molding machine), slow production cycle, and high mold manufacturing cost. These are problems that need to be solved by those skilled in the art. Summary of the Invention

[0004] One object of this application is to provide an injection mold for producing glove box inner hoppers that has low injection molding production cost, fast production cycle and low mold manufacturing cost.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: an injection mold for producing a glove box inner container, comprising a front mold and a rear mold, wherein a cavity for forming the glove box inner container is defined between the front mold and the rear mold. The glove box inner container includes a receiving groove and a pivot seat. The openings of the receiving groove and the pivot seat are both arranged along the mold opening and closing direction, and the openings of the receiving groove and the pivot seat face opposite directions. The mold includes a fixed mold core and a movable mold core. The outer wall of the fixed mold core is adapted to define the inner wall of the receiving groove. The movable mold core has multiple sets and is movably connected to the mold. When the mold is closed, the multiple sets of movable mold cores are adapted to combine with each other and define the outer inner wall of the cavity. It is worth mentioning that, due to the arrangement of the receiving groove, the cavity has an outer inner wall and an inner inner wall. Specifically, the outer inner wall of the cavity is adapted to form the outer surface of the glove box inner container, while the inner inner wall of the cavity is adapted to form the groove wall of the receiving groove.

[0006] Because the openings of the receiving groove and the rotating shaft seat in this application are both arranged along the mold opening and closing direction, and the openings of the receiving groove and the rotating shaft seat face opposite directions, the receiving groove can be demolded from the mold during the mold opening process. Furthermore, by utilizing the movable mold core, after injection molding is completed, the movable mold core can be separated from the rotating shaft seat by controlling its movement, thereby significantly reducing the mold size. Specifically, the original mold dimensions were 1275mm (height) * 1077mm (width), which could only be produced on a 1200T injection molding machine, resulting in high power consumption and severely limited injection molding cycle time. The mold dimensions of this application are 1198mm (height) * 856mm (width), which can be produced on a 650T injection molding machine, significantly reducing injection molding production costs and further shortening the injection molding cycle time. (For one-out-of-one molds, the injection efficiency of large injection molding machines is generally lower than that of small injection molding machines.)

[0007] In a further preferred embodiment, the movable mold core is disposed on the front mold, and the fixed mold core is disposed on the rear mold. The movable mold core includes a base mold core and a movable core. The base mold core is fixedly installed on the front mold. The movable core has multiple sets and is disposed opposite to each other on the periphery of the base mold core. The movable core is movably connected to the front mold. When the mold is closed, the movable core and the base mold core are adapted to cooperate with each other and define the outer inner wall of the cavity. The movable core and the base mold core together define the pivot seat cavity, and the pivot seat cavity is adapted to form the pivot seat.

[0008] Further preferably, the rotating shaft seat is provided with a rotating shaft groove suitable for accommodating the rotating shaft. The rotating shaft groove extends in the vertical direction and the groove opening faces forward. The rotating shaft seat includes a necking seat, and the neck of the rotating shaft groove contracts inward to form the necking seat. The movable core includes a locking mold core and a hydraulic mold core. The locking mold core has two sets and is respectively arranged on the left and right sides of the base mold core. The hydraulic mold core has two sets and is respectively arranged on the upper and lower sides of the base mold core. The base mold core and the locking mold core together define a necking cavity. The hydraulic mold core is provided with a necking protrusion in the vertical direction. The necking protrusion is suitable for penetrating into the necking cavity and fitting together to form the necking seat.

[0009] Further preferably, the pivot seat includes a flared seat, the neck of the pivot groove expands outward or remains unchanged to form the flared seat, the base mold core and the locking mold core jointly define a flared cavity, the flared cavity being adapted to form the flared seat.

[0010] Further preferably, the rear mold is provided with a locking rod protruding forward in the front-rear direction, and the locking mold core is provided with a drive hole matching the locking rod. The locking rod is adapted to be inserted into the drive hole. When the mold is opened, the rear mold moves backward and drives the locking rod to move backward, thereby driving the locking mold cores on the left and right sides to move to the left and right sides respectively, thereby realizing the separation of the locking mold cores from the glove box hopper; the mold also includes a hydraulic drive source. Under the action of the hydraulic drive source, the hydraulic mold cores move along the upper and lower sides respectively, thereby realizing the separation of the hydraulic mold cores from the glove box hopper.

[0011] Further preferably, the movable core includes a locking mold core and a hydraulic mold core. The locking mold core has two sets and is respectively disposed on the left and right sides of the base mold core. The hydraulic mold core has two sets and is respectively disposed on the upper and lower sides of the base mold core. A buffer surface is provided on the base mold core. The buffer surface has an angle α with the mold opening and closing direction, satisfying 0°<α≤90°. The buffer surface is adapted to cooperate with the fixed mold core to form the bottom of the receiving groove.

[0012] Further preferably, the movable mold core is also provided with a snap-fit ​​cavity, the snap-fit ​​cavity is adapted to form a snap-fit ​​part arranged on the same side as the rotating shaft seat, the base mold core and the locking mold core are adapted to jointly define the snap-fit ​​cavity, the snap-fit ​​part is adapted to movably connect the glove box inner hopper and the glove box, and control the flow speed of the plastic raw material in the cavity.

[0013] Further preferably, at least one reinforcing rib is provided on the outer sides of the upper and lower sides of the glove box hopper, and a reinforcing rib cavity is provided in the movable mold core to form the reinforcing rib. The locking mold core and the hydraulic mold core are adapted to jointly define the reinforcing rib cavity. The reinforcing rib is adapted to control the connection strength between the left and right sides and the upper and lower sides of the glove box hopper, and to control the flow speed of the plastic raw material in the cavity.

[0014] Further preferably, the movable mold core is provided with a water cavity, the movable core and the base mold core jointly define the water cavity, and the water cavity communicates with the mold cavity. Plastic raw material is suitable to pass through the water cavity and enter the mold cavity. The water cavity includes a planar inner wall and a curved inner wall. The planar inner wall is disposed on the base mold core, and the curved inner wall is disposed on the movable core.

[0015] In a further preferred embodiment, the front mold is also provided with an ejector assembly, the head of which is movably connected to the base mold core. When ejection is required, the ejector assembly is adapted to abut the bottom of the receiving groove and separate the glove box hopper from the movable mold core.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: Since the openings of the receiving groove and the rotating shaft seat are both arranged along the mold opening and closing direction, and the openings of the receiving groove and the rotating shaft seat face opposite directions, the receiving groove can be demolded from the mold during the mold opening process. Furthermore, by utilizing the movable mold core, after injection molding is completed, the movable mold core can be separated from the rotating shaft seat by controlling its movement, thereby significantly reducing the mold size. This allows the mold of this application to be placed on a smaller injection molding machine for production, thus reducing injection molding production costs and mold manufacturing costs, and to some extent improving the injection molding production cycle. (For one-out-of-one molds, the injection molding efficiency of large injection molding machines is generally lower than that of small injection molding machines.) Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the injection mold used in the original technology;

[0018] Figure 2 This is a schematic diagram of the workpiece in the original technology of injection mold;

[0019] Figure 3 This is an exploded view of the injection mold in the original technology;

[0020] Figure 4 This is a schematic diagram of one embodiment of the injection mold in this application, showing the front mold and the rear mold;

[0021] Figure 5This is a schematic diagram of a workpiece according to one embodiment of the injection mold in this application;

[0022] Figure 6 This is a schematic diagram of the workpiece from another angle, representing one embodiment of the injection mold in this application.

[0023] Figure 7 This is a partially enlarged view of one embodiment of the injection mold in this application, showing the locking seat;

[0024] Figure 8 This is a partially enlarged view of one embodiment of the injection mold in this application, showing the flare holder;

[0025] Figure 9 This is an exploded view of one embodiment of the injection mold in this application;

[0026] Figure 10 This is a schematic diagram of the movable mold core of one embodiment of the injection mold in this application;

[0027] Figure 11 This is a front view of the movable mold core of one embodiment of the injection mold in this application;

[0028] Figure 12 This is a rear view of the movable mold core of one embodiment of the injection mold in this application;

[0029] Figure 13 This is a schematic diagram of the movable mold core of one embodiment of the injection mold in this application;

[0030] Figure 14 This is a front view of the movable mold core of one embodiment of the injection mold in this application, showing the separated state;

[0031] Figure 15 This is a rear view of the movable mold core of one embodiment of the injection mold in this application, showing the separated state;

[0032] Figure 16 This is a schematic diagram of the movable mold core of one embodiment of the injection mold in this application, showing the necking cavity;

[0033] Figure 17 This is a schematic diagram of the movable mold core of one embodiment of the injection mold in this application, showing the expansion cavity;

[0034] Figure 18 This is a schematic diagram of the movable mold core of one embodiment of the injection mold in this application, showing the buffer surface;

[0035] Figure 19 This application provides an embodiment of the injection mold. Figure 18 The enlarged partial view at position A shows the water inlet.

[0036] In the diagram: 1. Movable mold core; 11. Base mold core; 111. Buffer surface; 12. Movable core; 121. Locking mold core; 1211. Drive hole; 122. Hydraulic mold core; 1221. Necked protrusion; 13. Rotary shaft seat cavity; 131. Necked cavity; 132. Expanding cavity; 14. Water inlet cavity; 141. Flat inner wall; 142. Curved inner wall; 15. Snap-in cavity; 16. Reinforcing rib cavity; 2. Fixed mold core; 3. Front mold; 31. Ejection assembly; 4. Rear mold; 41. Locking rod; 5. Cavity; 100. Glove box inner hopper; 101. Rotary shaft seat; 1011. Expanding seat; 1012. Necked seat; 1013. Rotary shaft groove; 102. Snap-in part; 103. Receiving groove; 1031. Groove bottom; 104. Sprue; 105. Reinforcing rib. Detailed Implementation

[0037] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0038] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0039] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0040] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0041] In the prior art, the injection mold used to produce the glove box inner compartment 100 is as follows: Figures 1 to 3As shown, the front mold 3 and the rear mold 4 are respectively mounted on the front and rear plates of the injection molding machine along the front-rear direction. The slider for forming the receiving groove 103 is located at the lower part of the mold, and the slider for forming the rotating shaft seat 101 is located at the upper part of the mold. The direction of the molded product in the mold is as follows: Figure 2 As shown, the receiving groove 103 is positioned downwards and the rotating shaft seat 101 is positioned upwards. For ease of understanding, the exploded view of the prior art mold is shown below. Figure 3 As shown, the front mold 3, the rear mold 4, and the glove box compartment 100 are displayed respectively.

[0042] The inventors of this application, through further research on the product, discovered that the main reason why the mold structure for producing the glove box inner compartment 100 in the prior art is complex and difficult to manufacture is:

[0043] (1) The product structure of the glove box inner hopper 100 is relatively complex. In addition to the pivot seat 101 and the receiving groove 103, it also has multiple snap-fit ​​parts 102 and reinforcing ribs 105. The demolding directions of these snap-fit ​​parts 102 and reinforcing ribs 105 are different. In order to reduce the manufacturing cost of the mold and minimize the number of sliders, the opening of the receiving groove 103 is usually set to face upward or downward to facilitate the demolding of other parts. However, since the receiving groove 103 of the glove box inner hopper 100 is relatively deep, the volume of the slider used to form the receiving groove 103 is large and the moving distance is long, which causes the problem that the volume of the existing injection mold is difficult to reduce.

[0044] (2) In addition, multiple sliders are required to cooperate with the male mold core to achieve demolding of the snap-fit ​​part 102 and the reinforcing rib part 105. In order to accommodate these sliders and give them sufficient movement space, the mold volume will inevitably increase.

[0045] Accordingly, the inventors of this application have developed an injection mold for producing a glove box inner compartment 100, one embodiment of which is, for example... Figures 4 to 19 As shown, the system includes a front mold 3 and a rear mold 4, with a cavity 5 defined between the front mold 3 and the rear mold 4 for molding a glove box inner compartment 100. The glove box inner compartment 100 includes a receiving groove 103 and a rotating shaft seat 101. The openings of the receiving groove 103 and the rotating shaft seat 101 are both arranged along the mold opening and closing direction (in this specific embodiment, the mold opening and closing direction is the front-to-back direction), and the openings of the receiving groove 103 and the rotating shaft seat 101 face opposite directions (e.g., ...). Figure 5 and Figure 6As shown, the mold includes a fixed mold core 2 and a movable mold core 1. The outer wall of the fixed mold core 2 is adapted to define the inner wall of the receiving groove 103. The movable mold core 1 has multiple sets and is movably connected to the mold. When the mold is closed, the multiple sets of movable mold cores 1 are adapted to combine with each other and define the outer inner wall of the cavity 5. It is worth mentioning that, due to the arrangement of the receiving groove 103, the cavity 5 has an outer inner wall and an inner inner wall. Specifically, the outer inner wall of the cavity 5 is adapted to form the outer surface of the glove box inner hopper 100, while the inner inner wall of the cavity 5 is adapted to form the groove wall of the receiving groove 103 (i.e., the inner wall of the receiving groove 103).

[0046] Because the openings of the receiving groove 103 and the pivot seat 101 in this application are both arranged along the mold opening and closing direction, and the openings of the receiving groove 103 and the pivot seat 101 face opposite directions, the receiving groove 103 can be demolded from the mold during the mold opening process. Furthermore, by controlling the movement of the movable mold core 1 after injection molding, the movable mold core 1 can be separated from the pivot seat 101, thereby significantly reducing the mold size. Specifically, the original mold size was 1275mm (height) * 1077mm (width), which could only be produced on a 1200T injection molding machine, resulting in high power consumption and severely limited injection molding cycle time. The mold size of this application is 1198mm (height) * 856mm (width), which can be produced on a 650T injection molding machine, significantly reducing the cost of injection molding production and further shortening the injection molding cycle time. (For one-out-one molds, the injection efficiency of large injection molding machines is generally lower than that of small injection molding machines.)

[0047] It is worth mentioning that, compared with the existing design, the mold of this application has multiple movable mold cores 1. After the mold is closed, the multiple sets of movable mold cores 1 combine with each other and define the outer inner wall of the cavity 5. Therefore, the volume of the mold cores of the mold of this application is greatly reduced. It is not necessary to add additional slider components to cooperate with the mold cores to form multiple structures of the glove box hopper 100 that are difficult to be directly separated from the cavity 5 after the mold is opened, such as the snap-fit ​​part 102, the reinforcing rib part 105, and the pivot seat 101. The cavity 5 can be generated by combining with each other, and the product (glove box hopper 100) can be separated from the mold (i.e., demolding) by separating with each other. Therefore, the lateral dimension (left-right direction) and longitudinal dimension (up-down direction) of the mold of this application are greatly reduced. Moreover, compared with the prior art, the ejector components 31 can be set as few as possible. Due to the setting of the movable mold cores 1, the separation of the glove box hopper 100 from the mold is more convenient and its demolding speed is also faster. To a certain extent, the production cycle can be reduced (effectively reducing demolding time and ejection time) and production efficiency can be improved.

[0048] Further optimization, such as Figure 9As shown, the movable mold core 1 is disposed on the front mold 3, and the fixed mold core 2 is disposed on the rear mold 4. The movable mold core 1 includes a base mold core 11 and a movable core 12. The base mold core 11 is fixedly installed on the front mold 3. The movable core 12 has multiple sets and is disposed opposite to each other on the periphery of the base mold core 11. The movable core 12 is movably connected to the front mold 3. When the mold is closed, the movable core 12 and the base mold core 11 are adapted to cooperate with each other and define the outer inner wall of the cavity 5. The movable core 12 and the base mold core 11 together define the pivot seat cavity 13. The pivot seat cavity 13 is adapted to form the pivot seat 101.

[0049] It is worth mentioning that in the prior art, the ejector assembly 31 is usually set on the rear mold 4. After the mold is opened, the ejector pin on the injection molding machine drives the ejector assembly 31 to move, thereby achieving complete demolding of the mold. Due to the structural limitations of the injection molding machine, the ejector pin cannot be directly driven during the mold opening process (which can easily cause interference or safety risks). Furthermore, due to the relatively complex structure of the glove box inner hopper 100, the setting direction and ejection speed of the ejector structure are limited. High-speed ejection can easily leave ejector pin marks, causing problems such as a decline in the appearance of the product. In this application, by setting the fixed mold core 2 on the rear mold 4, the movable mold core 31 is... Since the ejector core 1 is set on the front mold 3, during the mold opening process, the rear mold platen on the injection molding machine drives the rear mold 4 to move, thereby realizing the separation of the glove box inner hopper 100 from the rear mold 4. Subsequently, by controlling the movement of the movable mold core 1, the movable mold core 1 is separated from each other, thereby realizing the separation of the glove box inner hopper 100 from the front mold 3. Its demolding speed is faster, and since the base mold core 11 is set, the glove box inner hopper 100 can stay on the base mold core 11, which is convenient for subsequent ejection. Since the contact area between the base mold core 11 and the workpiece is small, the setting of the ejection assembly 31 and the limitation of the ejection speed are smaller, which is more conducive to rapid production.

[0050] In addition, such as Figure 11 and Figure 12 As shown, the movable mold core 1 and the base mold core 11 combine to form the outer inner wall of the cavity 5; as Figure 14 and Figure 15 As shown, the movable mold core 1 and the base mold core 11 are separated from each other, facilitating the separation of the glove box inner hopper 100. In actual production, after the mold is opened, the movable mold cores 1 move away from each other, allowing the glove box inner hopper 100 to remain on the base mold core 11, thus facilitating subsequent ejection. If the base mold core 11 is not provided, the glove box inner hopper 100 may fall directly after the movable mold cores 1 separate, causing problems such as tearing or product damage.

[0051] Further preferably, the front mold 3 is also provided with an ejector assembly 31. The head of the ejector assembly 31 is movably connected to the base mold core 11. When ejection is required, the ejector assembly 31 is adapted to abut against the bottom 1031 of the receiving groove 103, thereby separating the glove box hopper 100 from the movable mold core 1. Since the glove box hopper 100 will remain on the base mold core 11 after the movable cores 12 move away from each other, the ejector assembly 31, which is movably connected to the base mold core 11, is then driven to eject the glove box hopper 100, effectively reducing the ejection time and increasing the ejection speed.

[0052] Further optimization, such as Figure 16 As shown, the pivot seat 101 is provided with a pivot groove 1013 suitable for accommodating the pivot. The pivot groove 1013 extends in the vertical direction and the opening of the pivot groove 1013 faces forward. The pivot seat 101 includes a necking seat 1012. The neck of the pivot groove 1013 shrinks inward to form the necking seat 1012. The movable core 12 includes a locking mold core 121 and a hydraulic mold core 122. The locking mold core 121 has two sets and is respectively provided on the left and right sides of the base mold core 11. The hydraulic mold core 122 has two sets and is respectively provided on the upper and lower sides of the base mold core 11. The base mold core 11 and the locking mold core 121 together define a necking cavity 131. The hydraulic mold core 122 is provided with a necking protrusion 1221 in the vertical direction. The necking protrusion 1221 is suitable for penetrating into the necking cavity 131 and cooperating to form the necking seat 1012. It is worth mentioning that the opening of the pivot groove 1013 faces forward, meaning that the opening of the pivot groove 1013 is arranged along the mold opening and closing direction. The structure of the necking seat 1012 is as follows: Figure 7 As shown, the neck of the rotating shaft groove 1013 contracts inward, thereby limiting the displacement of the rotating shaft and preventing the rotating shaft from directly detaching from the rotating shaft groove 1013 during use.

[0053] To facilitate demolding, the locking mold core 121 and the base mold core 11 define the necking cavity 131, which is used to form the outer wall of the pivot seat 101. A necking protrusion 1221 is provided to form the pivot groove 1013 of the necking seat 1012. When demolding is required, such as... Figures 14 to 16 As shown, the necking seat 1012 is demolded by driving the locking mold core 121 and the hydraulic mold core 122 to move in the direction of the arrows. In this specific embodiment, since there are two sets of locking mold cores 121 respectively located on the left and right sides of the base mold core 11, and two sets of hydraulic mold cores 122 respectively located on the upper and lower sides of the base mold core 11, rapid demolding can be achieved by driving the locking mold core 121 to move in the left and right direction and the hydraulic mold core 122 to move in the up and down direction. Furthermore, the mold structure is compact, resulting in lower manufacturing and injection molding production costs. (This is more suitable for production on small injection molding machines.)

[0054] Further optimization, such as Figure 8 and Figure 17 As shown, the pivot seat 101 includes a flared seat 1011. The neck of the pivot groove 1013 expands outward or remains unchanged to form the flared seat 1011. The base mold core 11 and the locking mold core 121 together define a flared cavity 132, which is adapted to form the flared seat 1011.

[0055] It is worth mentioning that the simultaneous setting of the flaring seat 1011 and the necking seat 1012 facilitates the installation of the glove box inner hopper 100 and simplifies the installation difficulty and mold structure. The necking seat 1012 restricts the rotating shaft from separating directly from the rotating shaft groove 1013, while the flaring seat 1011 can be directly demolded without the need to add other sliders, thereby further reducing the volume of the injection mold of this application.

[0056] Specifically, such as Figure 17 As shown, the flared cavity 132, which is jointly defined by the base mold core 11 and the locking mold core 121, can be directly ejected by the ejector assembly 31 when the locking mold core 121 moves away from the base mold core 11, without jamming or other problems.

[0057] Further optimization, such as Figure 9As shown, a locking rod 41 protrudes forward along the front-rear direction on the rear mold 4. A drive hole 1211 matching the locking rod 41 is provided on the locking mold core 1211. The locking rod 41 is suitable for insertion into the drive hole 1211. When the mold is opened, the rear mold 4 moves backward and drives the locking rod 41 to move backward, thereby driving the locking mold cores 121 on the left and right sides to move to the left and right sides respectively, thereby realizing the separation of the locking mold cores 121 from the glove box inner hopper 100. The mold also includes a hydraulic drive source. Under the action of the hydraulic drive source, the hydraulic mold core 122 moves along the upper and lower sides respectively, thereby realizing the separation of the hydraulic mold core 122 from the glove box inner hopper 100. By using different drive sources for the locking mold core 121 and the hydraulic mold core 122, the locking force between each movable core 12 can be controlled as needed, simplifying the mold structure and reducing usage costs. Specifically, the driving force and locking force of the locking mold core 121 are generated by the movement of the rear mold 4. When the rear mold 4 is in a locked state relative to the front mold 3, the size of the locking mold core 121 is controlled by the mold clamping force. The locking force and driving force of the hydraulic mold core 122 are driven by a hydraulic drive source. Therefore, during the mold opening process, the locking mold core 121 and the hydraulic mold core 122 can move in stages. That is, first, the locking mold core 121 is controlled to move away from the glove box hopper 100, and then the hydraulic mold core 122 moves away from the glove box hopper 100. This avoids the glove box hopper 100 from detaching directly due to excessive separation speed, which could cause surface scratches or surface contamination. Furthermore, since the hydraulic mold core 122 and the locking mold core 121 have different drive sources, the speed and trigger time of the hydraulic mold core 122's movement can be adjusted as needed, thereby minimizing the injection molding cycle. In addition, using a hydraulic drive source to drive the hydraulic mold core 122's movement will further reduce the size of the mold, making it more suitable for production on smaller injection molding machines.

[0058] Further optimization, such as Figure 18 As shown, the movable core 12 includes a locking mold core 121 and a hydraulic mold core 122. Two sets of locking mold cores 121 are respectively disposed on the left and right sides of the base mold core 11. Two sets of hydraulic mold cores 122 are respectively disposed on the upper and lower sides of the base mold core 11. A buffer surface 111 is provided on the base mold core 11. The buffer surface 111 has an angle α with the mold opening and closing direction, satisfying 0°<α≤90°. The buffer surface 111 is suitable for cooperating with the fixed mold core 2 to form the bottom 1031 of the receiving groove 103. The buffer surface 111 can control the flow rate of the plastic jet, preventing excessive flow rate from directly causing insufficient locking force of the movable core 12 and unnecessary flash. Furthermore, the buffer surface 111 can cooperate in forming the bottom 1031 of the receiving groove 103, avoiding unnecessary material waste caused by adding other components. By controlling the position and length of the buffer surface 111, the magnitude of the clamping force can be controlled, thus avoiding the need for excessive clamping force on the movable core 12.

[0059] Further preferably, the movable mold core 1 is also provided with a snap-fit ​​cavity 15. The snap-fit ​​cavity 15 is suitable for forming a snap-fit ​​part 102 located on the same side as the pivot seat 101. The base mold core 11 and the locking mold core 121 are suitable for jointly defining the snap-fit ​​cavity 15. The snap-fit ​​part 102 is suitable for movably connecting the glove box inner hopper 100 and the glove box, and controlling the flow speed of the plastic material in the cavity 5. The snap-fit ​​cavity 15 and the snap-fit ​​part 102 have two functions. First, they can be used as a snap-fit ​​position to movably connect the glove box inner hopper 100 and the glove box. Second, they act as a slow-flow cavity for the plastic fluid to limit the flow speed of the plastic material in the cavity 5. The plastic flow speed of the mold in this application cannot be too fast or too slow. If it is too fast, the movable core 12 will easily expand during the injection process. If it is too slow, the plastic will not be able to fill the cavity 5 completely. Therefore, the position and size of the snap-fit ​​cavity 15 can be set according to needs to achieve control of the injection flow rate.

[0060] Further optimization, such as Figure 5 and Figure 13 As shown, at least one reinforcing rib 105 is provided on the outer sides of both the upper and lower sides of the glove box hopper 100. A reinforcing rib cavity 16 is provided within the movable mold core 1 to form the reinforcing rib 105. The locking mold core 121 and the hydraulic mold core 122 are adapted to jointly define the reinforcing rib cavity 16. The reinforcing rib 105 is adapted to control the connection strength between the left and right sides and the upper and lower sides of the glove box hopper 100, and to control the flow rate of the plastic material within the cavity 5. The reinforcing rib 105 can not only control the connection strength between the left and right sides and the upper and lower sides of the glove box hopper 100, but also serve as a buffer cavity to prevent flash caused by excessively fast injection flow, store a portion of the plastic material, and facilitate venting.

[0061] Further optimization, such as Figure 18 and Figure 19 As shown, a water cavity 14 is provided inside the movable mold core 1. The movable core 12 and the base mold core 11 jointly define the water cavity 14, and the water cavity 14 is connected to the cavity 5. Plastic raw materials are suitable for passing through the water cavity 14 and entering the cavity 5. The water cavity 14 includes a planar inner wall 141 and a curved inner wall 142. The planar inner wall 141 is provided on the base mold core 11, and the curved inner wall 142 is provided on the movable core 12. The sprue 14 is suitable for forming the sprue 104. The planar inner wall 141 and the curved inner wall 142 are provided to increase the capacity of the sprue 14 to accommodate cold material and effectively reduce impact. In addition, the planar inner wall 141 is set on the base mold core 11, and the curved inner wall 142 is set on the movable core 12. Since the movable core 12 is movable, it is convenient to separate the curved inner wall 142 from the formed sprue 104. It also facilitates the ejection assembly 31 to act on the glove box hopper 100, thereby ejecting the entire glove box hopper 100 and avoiding the problem of excessive adhesion between the sprue 104 and the base mold core 11, which would make separation difficult.

[0062] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. An injection mold for producing a glove box inner container, comprising a front mold and a rear mold, wherein a cavity for forming the glove box inner container is defined between the front mold and the rear mold, the glove box inner container comprising a receiving groove and a pivot seat, characterized in that: The openings of the receiving groove and the rotating shaft seat are both arranged along the mold opening and closing direction, and the openings of the receiving groove and the rotating shaft seat face opposite directions. The mold includes a fixed mold core and a movable mold core. The outer wall of the fixed mold core is adapted to define the inner wall of the receiving groove. The movable mold core has multiple sets and is movably connected to the mold. When the mold is closed, the multiple sets of movable mold cores are adapted to combine with each other and define the outer inner wall of the cavity. The movable mold core is disposed on the front mold, and the fixed mold core is disposed on the rear mold. The movable mold core includes a base mold core and a movable core. The base mold core is fixedly installed on the front mold. The movable core has multiple sets and is disposed opposite to each other on the periphery of the base mold core. The movable core is movably connected to the front mold. When the mold is closed, the movable core and the base mold core are adapted to cooperate with each other and define the outer inner wall of the cavity. The movable core and the base mold core together define the pivot seat cavity, and the pivot seat cavity is adapted to form the pivot seat. The rotating shaft seat is provided with a rotating shaft groove suitable for accommodating the rotating shaft. The rotating shaft groove extends in the vertical direction and the groove opening faces forward. The rotating shaft seat includes a necking seat. The neck of the rotating shaft groove narrows inward to form the necking seat. The movable core includes a locking mold core and a hydraulic mold core. The locking mold core has two sets and is respectively arranged on the left and right sides of the base mold core. The hydraulic mold core has two sets and is respectively arranged on the upper and lower sides of the base mold core. The base mold core and the locking mold core together define a necking cavity. The hydraulic mold core is provided with a necking protrusion in the vertical direction. The necking protrusion is suitable for entering the necking cavity and fitting together to form the necking seat.

2. The injection mold for producing glove box inner hoppers as described in claim 1, characterized in that: The pivot seat includes a flared seat, the neck of the pivot groove expands outward or remains unchanged to form the flared seat, the base mold core and the locking mold core together define a flared cavity, the flared cavity is adapted to form the flared seat.

3. The injection mold for producing glove box inner hoppers as described in claim 1, characterized in that: The rear mold is provided with a locking rod protruding forward in the front-to-back direction. The locking mold core is provided with a drive hole that matches the locking rod. The locking rod is adapted to be inserted into the drive hole. When the mold is opened, the rear mold moves backward and drives the locking rod to move backward, thereby causing the locking mold cores on the left and right sides to move to the left and right sides respectively, thus realizing the separation of the locking mold cores from the glove box hopper. The mold also includes a hydraulic drive source. Under the action of the hydraulic drive source, the hydraulic mold cores move along the upper and lower sides respectively, thus realizing the separation of the hydraulic mold cores from the glove box hopper.

4. The injection mold for producing glove box inner hoppers as described in claim 1, characterized in that: The base mold core is provided with a buffer surface, which has an angle α with the opening and closing mold direction, satisfying 0°<α≤90°, and the buffer surface is adapted to cooperate with the fixed mold core to form the bottom of the receiving groove.

5. The injection mold for producing glove box inner hoppers as described in claim 4, characterized in that: The movable mold core is also provided with a snap-fit ​​cavity, which is adapted to form a snap-fit ​​part arranged on the same side as the rotating shaft seat. The base mold core and the locking mold core are adapted to jointly define the snap-fit ​​cavity. The snap-fit ​​part is adapted to movably connect the glove box inner hopper and the glove box, and control the flow speed of the plastic raw material in the cavity.

6. The injection mold for producing glove box inner hoppers as described in claim 4, characterized in that: At least one reinforcing rib is provided on the exterior of the upper and lower sides of the glove box hopper. The movable mold core is provided with a reinforcing rib cavity suitable for forming the reinforcing rib. The locking mold core and the hydraulic mold core are suitable for jointly defining the reinforcing rib cavity. The reinforcing rib is suitable for controlling the connection strength between the left and right sides and the upper and lower sides of the glove box hopper, and controlling the flow speed of the plastic raw material in the cavity.

7. The injection mold for producing glove box inner hoppers as described in claim 4, characterized in that: The movable mold core is provided with a water cavity, which is defined by the movable core and the base mold core. The water cavity is connected to the mold cavity, and the plastic material is suitable to pass through the water cavity and enter the mold cavity. The water cavity includes a planar inner wall and a curved inner wall. The planar inner wall is disposed on the base mold core, and the curved inner wall is disposed on the movable core.

8. The injection mold for producing glove box inner hoppers as described in claim 1, characterized in that: The front mold is also provided with an ejector assembly. The head of the ejector assembly is movably connected to the base mold core. When ejection is required, the ejector assembly is adapted to abut the bottom of the receiving groove and separate the glove box hopper from the movable mold core.

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