Secondary forming die for charging seat of electric toothbrush

Abstract

The utility model discloses a secondary forming die for a charging seat of an electric toothbrush. The secondary forming die comprises a front die assembly and a rear die assembly, the front mold assembly comprises a front mold plate, a front mold core fixed to the front mold plate, a plurality of sliding block assemblies arranged on the front mold plate, an ejector pin plate slidably connected with the front mold plate in the direction parallel to the mold opening direction and a plurality of drivers, and the ejector pin plate is provided with a plurality of ejector pins penetrating through the front mold plate and the front mold core. The driver is connected with the ejector plate and used for driving the ejector plate to slide in the direction parallel to the mold opening direction. The rear mold assembly comprises a rear mold plate and a rear mold core fixed on the rear mold plate; before the front mold assembly and the rear mold assembly are assembled, the driver is used for driving the ejector pin to retract; when the front mold assembly and the rear mold assembly are opened, the rear mold core and the sliding block assembly are both far away from a product subjected to secondary injection molding, and the driver is used for driving the ejector pin to eject out the product subjected to secondary injection molding. According to the utility model, secondary injection molding of the charging seat can be completed through one-time mold closing and opening processes, so that the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molding dies, in particular to a secondary molding die for a charging base of an electric toothbrush. Background Art

[0002] An electric toothbrush is a tooth cleaning device that generates high-frequency vibrations in the brush head through the rapid rotation or vibration of the electric motor. Current electric toothbrushes are charged through a charging station, and the outer shell of the charging station is generally injection molded. Some charging stations have a more complex structure and require secondary injection molding. The ejector structure design of the existing secondary molding mold of the charging station is unreasonable. When the mold is working, after taking out a batch of secondary molded products, the mold must be closed first before the ejector can be returned. The mold is opened again, and the products that need secondary injection molding are placed in, and then the mold is closed again. Finally, the mold is opened to take out the secondary molded products. In this way, the mold will go through two opening and closing processes, resulting in a longer production time for the product, which undoubtedly reduces production efficiency. Utility Model Content

[0003] The utility model provides a secondary molding mold for a charging seat of an electric toothbrush, which can complete the secondary injection molding of the charging seat through a process of one mold closing and one mold opening, thereby improving production efficiency.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] An embodiment of the utility model provides a secondary molding mold for a charging stand of an electric toothbrush, comprising a front mold assembly and a rear mold assembly; the front mold assembly comprises a front mold plate, a front mold core fixed on the front mold plate, a plurality of slider assemblies arranged on the front mold plate, an ejector plate slidably connected to the front mold plate in parallel to a mold opening direction, and a plurality of drivers, the ejector plate is provided with a plurality of ejectors penetrating the front mold plate and the front mold core, the driver is connected to the ejector plate and is used to drive the ejector plate to slide in parallel to the mold opening direction; the rear mold assembly comprises a rear mold plate and a rear mold core fixed on the rear mold plate; before the front mold assembly and the rear mold assembly are molded together, the driver is used to drive the ejector pins to retract; after the front mold assembly and the rear mold assembly are molded together, the front mold core, the rear mold core and the slider assembly clamp the product to be secondary injection molded; when the front mold assembly and the rear mold assembly are molded together, the rear mold core and the slider assembly are both away from the product that has been secondary injection molded, and the driver is used to drive the ejector pins to eject the product that has been secondary injection molded.

[0006] In some embodiments, the front mold assembly further includes a plurality of guide posts extending in parallel to the mold opening direction, wherein the guide posts pass through the ejector plate and can slide relative to the ejector plate in parallel to the mold opening direction.

[0007] In some embodiments, the guide post also passes through the front mold plate and the front mold core, and a penetrating glue inlet channel is provided at the center of the guide post.

[0008] In some embodiments, the ejector plate includes a connecting plate and two support plates, the two support plates are arranged in parallel, the connecting plate is located between the two support plates and is respectively connected to the two support plates, and the driver is provided with four cylinders, and the four cylinders are respectively connected to the two ends of the two support plates.

[0009] In some embodiments, the rear mold core includes a mold plate and a positioning block arranged on the mold plate, the positioning block can elastically slide relative to the mold plate in a direction parallel to the mold opening direction, and the product to be secondary injection molded is used to be placed on the positioning block; a protruding insert is arranged on the front mold core, and the slider assembly is distributed around the insert; when the front mold assembly and the rear mold assembly are closed, the insert presses the product to be secondary injection molded against the positioning block, and the slider assembly abuts against the side of the product to be secondary injection molded.

[0010] In some embodiments, the surface of the mold plate is provided with a guide groove extending parallel to the mold opening direction, the positioning block is arranged in the guide groove and can slide in the guide groove, and an elastic member is arranged in the guide groove, and the elastic member abuts the positioning block.

[0011] In some embodiments, a positioning protrusion is provided on the positioning block, and the positioning protrusion is used to be inserted into a groove at the bottom of the product to be secondary injection molded.

[0012] The utility model has at least the following beneficial effects: the ejector plate of the utility model is driven by an independent driver, and before the front mold assembly and the rear mold assembly are molded together, the driver is used to drive the ejector to retract so that the product to be secondary injection molded can be placed in the mold; after the front mold assembly and the rear mold assembly are molded together, the front mold core, the rear mold core and the slider assembly clamp the product to be secondary injection molded to perform secondary injection molding on the product; when the front mold assembly and the rear mold assembly are molded together, the rear mold core and the slider assembly are both away from the product that has been secondary injection molded, and the driver is used to drive the ejector to eject the product that has been secondary injection molded, so that the product that has been secondary injection molded can be taken away. Therefore, the secondary injection molding of the charging stand can be completed through only one mold closing and mold opening, which shortens the time for secondary injection molding and effectively improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a secondary molding mold of a charging stand for an electric toothbrush according to an embodiment of the utility model;

[0014] Figure 2 It is a cross-sectional schematic diagram of a secondary molding mold of a charging stand for an electric toothbrush according to an embodiment of the utility model;

[0015] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0016] Figure 4 This is a schematic structural diagram of a driver, an ejector plate, an ejector, a guide post, a slider assembly, and a rear mold assembly according to an embodiment of the utility model;

[0017] Figure 5 This is a structural schematic diagram of a slider assembly and a rear mold assembly according to an embodiment of the utility model;

[0018] Figure 6 The figure is a schematic structural diagram of a front mold core according to an embodiment of the utility model.

[0019] Wherein, the accompanying drawings are marked as follows:

[0020] Product 10;

[0021] Front mold assembly 100, front mold plate 110, front mold core 120, insert 121, slider assembly 130, ejector plate 140, support plate 141, connecting plate 142, driver 150, ejector 160, guide column 170;

[0022] The rear mold assembly 200 , the rear mold plate 210 , the rear mold core 220 , the mold core plate 221 , the positioning block 222 , the positioning protrusion 223 , the elastic member 230 , and the guide column 240 . DETAILED DESCRIPTION

[0023] The utility model provides the following description with reference to the accompanying drawings to help fully understand the various embodiments of the utility model as defined by the claims and their equivalents. The description includes various specific details to help understanding, but these details should be regarded as exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the utility model.

[0024] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They 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 invention.

[0025] It will be understood that when one element (eg, a first element) is “connected” to another element (eg, a second element), the element may be directly connected to the other element or an intervening element (eg, a third element) may be present between the element and the other element.

[0026] The embodiment of the utility model provides a secondary molding mold of a charging stand of an electric toothbrush, such as Figure 1-6As shown, it includes a front mold assembly 100 and a rear mold assembly 200. The front mold assembly 100 and the rear mold assembly 200 can be closed to close each other, or opened to separate from each other. The front mold assembly 100 includes a front template 110, a front mold core 120 fixed on the front template 110, a plurality of slider assemblies 130 arranged on the front template 110, an ejector plate 140 connected to the front template 110 in a sliding manner parallel to the mold opening direction, and a plurality of drivers 150. The slider assembly 130 specifically includes a slider. The rear mold assembly 200 can be provided with an inclined guide column adapted to the slider. During the process of closing and opening the mold, the inclined guide column can drive the slider to slide. The ejector plate 140 is provided with a plurality of ejectors 160 that penetrate the front template 110 and the front mold core 120. The front template 110 and the front mold core 120 are naturally provided with perforations for the ejectors 160 to pass through, and the ejectors 160 can slide in the perforations. The driver 150 is connected to the ejector plate 140 and is used to drive the ejector plate 140 to slide in a direction parallel to the mold opening direction. The rear mold assembly 200 includes a rear mold plate 210 and a rear mold core 220 fixed on the rear mold plate 210.

[0027] Before the front mold assembly 100 and the rear mold assembly 200 are molded together, the product 10 to be secondary-molded needs to be placed in the mold, and the driver 150 is used to drive the ejector pin 160 to retract, so that the ejector pin 160 does not occupy the position where the product 10 is placed, so that the product 10 can be placed on the rear mold core 220. After the front mold assembly 100 and the rear mold assembly 200 are molded together, the front mold core 120, the rear mold core 220 and the slider assembly 130 clamp the product 10 to be secondary-molded, and enclose the product 10 to form a corresponding molding cavity, and the rubber material for secondary injection will be injected into the molding cavity, so that secondary injection molding is performed on the surface of the product 10. When the front mold assembly 100 and the rear mold assembly 200 are opened, the rear mold core 220 and the slider 130 components are away from the product 10 that has completed secondary injection molding. The driver 150 is used to drive the ejector pin 160 to eject the product 10 that has completed secondary injection molding from the front mold core 120, and the product 10 that has completed secondary injection molding can be taken away. Therefore, this embodiment only needs one mold closing and mold opening to complete the secondary injection molding of the charging stand, which shortens the time of secondary injection molding and effectively improves production efficiency.

[0028] It should be noted that in order to facilitate the observation of the structure in the molding cavity, Figure 2 and Figure 3 The front mold core has been removed so that the part blocked by the front mold core can be observed.

[0029] In some embodiments, the front mold assembly 100 also includes a plurality of guide pillars 170 extending in parallel to the mold opening direction. The guide pillars 170 pass through the ejector plate 140 and can slide relative to the ejector plate 140 in parallel to the mold opening direction. The ejector plate 140 is naturally provided with guide holes that are compatible with the guide pillars 170. The guide pillars 170 will guide the ejector plate 140 to ensure that the ejector plate 140 slides in parallel to the mold opening direction.

[0030] Furthermore, the guide post 170 also passes through the front template 110 and the front mold core 120. The front template 110 and the front mold core 120 are naturally provided with openings for the guide post 170 to pass through. A through-going glue inlet channel is provided at the center of the guide post 170. The glue inlet channel extends into the molding cavity, so that the hot melt glue can enter the molding cavity along the glue inlet channel. In this way, the guide post 170 can be reasonably utilized. Since the guide post 170 is a complete structure, a relatively closed glue inlet channel can be formed to prevent glue leakage.

[0031] In some embodiments, the ejector plate 140 includes a connecting plate 142 and two support plates 141. The two support plates 141 are arranged in parallel. The connecting plate 142 is located between the two support plates 141 and is respectively connected to the two support plates 141 to form an "I"-shaped structure. The driver 150 is provided with four oil cylinders, which are respectively connected to the two ends of the two support plates 141. When in action, the four oil cylinders synchronously drive the support plates 141 to move to ensure that the ejector plate 140 slides smoothly in a direction parallel to the mold opening direction.

[0032] In some embodiments, the rear mold core 220 includes a mold core plate 221 and a positioning block 222 disposed on the mold core plate 221. The positioning block 222 can elastically slide relative to the mold core plate 221 in a direction parallel to the mold opening direction, and the product 10 to be secondary injection molded is used to be placed on the positioning block 222. A protruding insert 121 is disposed on the front mold core 120, and the slider assembly 130 is distributed around the insert 121 so that the slider assembly 130 can abut the product 10 from all sides of the product 10. When the front mold assembly 100 and the rear mold assembly 200 are closed, the insert 121 presses the product 10 to be secondary-injected onto the positioning block 222. As a result, the positioning block 222 and the insert 121 clamp and fix the product 10 to position the product 10. Since the positioning block 222 can elastically slide relative to the mold plate 221 in a direction parallel to the mold opening direction, when the insert 121 is pressed down, the elastic sliding of the positioning block 222 can provide a buffer, effectively preventing the positioning block 222 and the insert 121 from crushing the product 10. At the same time, the slider assembly 130 abuts against the side of the product 10 to be secondary-injected, limiting the lateral movement of the product 10, thereby achieving a secondary positioning effect on the product 10, thereby accurately positioning the product.

[0033] Furthermore, the surface of the mold core plate 221 is provided with a guide groove extending parallel to the mold opening direction, the positioning block 222 is arranged in the guide groove and can slide in the guide groove, and an elastic member 230 is arranged in the guide groove, and the elastic member 230 abuts against the positioning block 222. The elastic member 230 allows the positioning block 222 to slide elastically in the guide groove, and when the insert 121 is pressed down, the elastic member 230 can provide elastic buffering.

[0034] Furthermore, a guide column 240 may be provided in the guide groove, and a socket extending in parallel to the mold opening direction may be provided on the bottom surface of the positioning block 222, and the guide column 240 is inserted into the socket. The elastic member 230 is a spring sleeved on the guide column 240, and the upper end of the spring abuts the positioning block 222, thereby, the elastic member 230 can stably provide elastic force in parallel to the mold opening direction.

[0035] In some embodiments, the positioning block 222 is provided with a positioning protrusion 223, which is used to be inserted into the groove at the bottom of the product 10 to be overmolded to better position the product 10 so that the product 10 remains stable. The shape and size of the positioning protrusion 223 can be respectively matched with the shape and size of the groove so that the positioning protrusion 223 can be accurately inserted into the groove.

[0036] The terms and words used in the above description and claims are not limited to the literal meanings, but are only used by the applicant to enable a clear and consistent understanding of the utility model. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the utility model is provided only for illustration, and not for limiting the utility model as defined by the attached claims and their equivalents.

Claims

1. A secondary molding mold for a charging stand of an electric toothbrush, characterized in that: The invention comprises a front mold assembly and a rear mold assembly; the front mold assembly comprises a front mold plate, a front mold core fixed on the front mold plate, a plurality of slider assemblies arranged on the front mold plate, an ejector plate slidably connected to the front mold plate in parallel to the mold opening direction, and a plurality of drivers, the ejector plate is provided with a plurality of ejectors penetrating the front mold plate and the front mold core, the driver is connected to the ejector plate and is used to drive the ejector plate to slide in parallel to the mold opening direction; the rear mold assembly comprises a rear mold plate and a rear mold core fixed on the rear mold plate; before the front mold assembly and the rear mold assembly are molded together, the driver is used to drive the ejector pins to retract; after the front mold assembly and the rear mold assembly are molded together, the front mold core, the rear mold core and the slider assembly clamp the product to be secondary injection molded; when the front mold assembly and the rear mold assembly are molded together, the rear mold core and the slider assembly are both away from the product that has been secondary injection molded, and the driver is used to drive the ejector pins to eject the product that has been secondary injection molded.

2. The secondary molding die of the charging stand of the electric toothbrush according to claim 1, characterized in that: The front mold assembly also includes a plurality of guide pillars extending in parallel to the mold opening direction. The guide pillars pass through the ejector plate and can slide relative to the ejector plate in parallel to the mold opening direction.

3. The secondary molding die of the charging stand of the electric toothbrush according to claim 2, characterized in that: The guide column also passes through the front mold plate and the front mold core, and a penetrating glue inlet flow channel is arranged at the center of the guide column.

4. The secondary molding die of the charging stand of the electric toothbrush according to claim 1, characterized in that: The ejector plate includes a connecting plate and two supporting plates, the two supporting plates are arranged in parallel, the connecting plate is located between the two supporting plates and is respectively connected to the two supporting plates, and the driver is provided with four oil cylinders, which are respectively connected to the two ends of the two supporting plates.

5. The secondary molding die of the charging stand of the electric toothbrush according to any one of claims 1 to 4, characterized in that: The rear mold core includes a mold core plate and a positioning block arranged on the mold core plate, the positioning block can elastically slide relative to the mold core plate in a direction parallel to the mold opening direction, and the product to be secondary injection molded is used to be placed on the positioning block; a protruding insert is arranged on the front mold core, and the slider assembly is distributed around the insert; when the front mold assembly and the rear mold assembly are closed, the insert presses the product to be secondary injection molded against the positioning block, and the slider assembly abuts against the side of the product to be secondary injection molded.

6. The secondary molding die of the charging stand of the electric toothbrush according to claim 5, characterized in that: The surface of the mold core plate is provided with a guide groove extending parallel to the mold opening direction, the positioning block is arranged in the guide groove and can slide in the guide groove, and an elastic member is arranged in the guide groove, and the elastic member abuts against the positioning block.

7. The secondary molding die of the charging stand of the electric toothbrush according to claim 5, characterized in that: The positioning block is provided with a positioning protrusion, and the positioning protrusion is used to be inserted into the groove at the bottom of the product to be secondary injection molded.

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