Product encapsulation process and product encapsulation device

Abstract

The application provides a product encapsulation process and a product encapsulation device, wherein the product encapsulation process comprises the following steps: step 1, core placement: obtaining a core and placing the core on a first rear mold group; step 2, core encapsulation semi-finished product forming: a front mold group is combined with the first rear mold group to the N-1 rear mold group in sequence to obtain a solidified and formed semi-finished product by injecting encapsulation raw materials; step 3, core encapsulation finished product forming: the front mold group is combined with the N rear mold group to obtain a solidified and formed finished product by injecting encapsulation raw materials, and the encapsulation process is completed; wherein N is a natural number and N is greater than or equal to 2. The obtained core encapsulation finished product is integrally formed with the core and the encapsulation raw materials, the core is completely wrapped inside the gel, the probability of core falling off is reduced, the outer surface of the product is integrally formed without gaps, the area that cannot be cleaned is avoided, the cleaning difficulty of the product is reduced, and the product does not need to be manually assembled, thereby reducing the labor cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of overmolding molds, and in particular relates to a product overmolding process and a product overmolding device. Background Art

[0002] Rubber-coated products are very common in our daily life. For example, daily necessities, medical supplies, industrial supplies, etc. all require rubber-coated products. The effect of the product after rubber coating will affect the user experience. For example, the rubber coating material may fall off due to heat, making the product ineffective, or some products are separately molded through partial rubber coating, and then multiple parts are manually assembled to reduce the difficulty of the rubber coating molding process. For example, the baby silicone toothbrush sold on the market is formed by separate molding and manual assembly. However, products formed by manual assembly have gaps between different rubber-coated parts. Long-term use will accumulate dust, mineral impurities in water, etc., which is not conducive to cleaning. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] In view of this, an object of the present invention is to provide a product encapsulation process.

[0005] Another object of the present invention is to provide a product encapsulation device.

[0006] In order to achieve the above object, the technical solution of the present invention provides a product encapsulation process, comprising the following steps:

[0007] Step 1, column core placement: obtain the column core and place it on the first rear module;

[0008] Step 2: Forming the semi-finished column core encapsulation product: the front module is sequentially assembled with the first to N-1 rear modules, and the encapsulation material is injected to obtain a semi-finished product that is cured and formed;

[0009] Step 3: Molding the core rubberized finished product: The front module and the Nth rear module are combined into a mold and the rubberized raw material is injected to obtain a solidified finished product, completing the rubberized process;

[0010] Wherein, N is a natural number and N is greater than or equal to 2.

[0011] Furthermore, ejection equipment is provided on the first rear module to the N-1th rear module, and the ejection equipment is used to eject the semi-finished product of the column core rubber coating from any one of the first rear module to the N-1th rear module and leave it in the concave mold cavity set in the front module.

[0012] Furthermore, before step 1, the method further includes: applying adhesive on the surface of the column core.

[0013] Furthermore, when N is greater than 2, the concave mold cavity provided by the N-x+1th rear module can completely accommodate the semi-finished colloid part cast by the concave mold cavity provided by the Nxth rear module, wherein x is a natural number and 1≤X<N-1.

[0014] The second technical solution of the present invention proposes a product encapsulation device for completing the process of the product encapsulation process. When N=2, the product encapsulation device includes: a front module, a first rear module and a second rear module, the front module includes a front mold core, the first rear module includes a first rear mold core, and the second rear module includes a second rear mold core; the front mold core is provided with a number of first concave mold cavities, the first rear mold core is provided with a number of convex mold cavities, and the second rear mold core is provided with a number of second concave mold cavities; wherein the convex mold cavity is used to place the column core, the first concave mold cavity and the convex mold cavity are combined to obtain a semi-finished product, and the first concave mold cavity and the first concave mold cavity are combined to obtain a finished product.

[0015] The convex mold cavity of the product encapsulation device is surrounded by raised ribs protruding from the surface of the first rear mold core, and the outer wall of the raised rib has a slope of 10 to 30 degrees relative to the surface of the first rear mold core; preferably, the ratio of the width of the convex mold cavity to the width of the column core is 1 to 1.1.

[0016] The product encapsulation device also includes: an ejection device; the ejection device is fixed on the base of the first rear mold group, the ejection device includes an ejection plate arranged between the base and the first rear mold core, an ejector rod group arranged on the ejection plate, and a driving device transmission-connected to the ejector rod group, the ejector rod group includes a plurality of ejector rods, and the driving device can drive the ejector rods to extend and retract; wherein, a plurality of through holes penetrating the first rear mold core are provided in each punch cavity, and the ejector rods pass through the through holes so that the ejector rods can extend or retract from the bottom of the punch cavity.

[0017] Furthermore, the front module is provided with a guide hole, the second rear module and the first rear module are both provided with guide columns corresponding to the guide holes, the second rear module and the first rear module are both provided with a number of raised positioning blocks, and the front module is provided with a positioning groove that cooperates with the positioning block.

[0018] Furthermore, the first rear mold core is provided with a plurality of first bosses protruding from the surface of the first rear mold core, the male mold cavity is provided within the first bosses, and the first bosses are used to form a seal with the surface of the front mold core. The second rear mold core is provided with a plurality of second bosses protruding from the surface of the second rear mold core, the second female mold cavity is provided within the second bosses, and the second bosses are used to form a seal with the surface of the front mold core.

[0019] Furthermore, the front mold group is provided with a first injection channel and a first exhaust channel, the first injection channel is connected to one end of the first die cavity, and the first exhaust channel is connected to the other end of the first die cavity; the second rear mold group is provided with a second injection channel and a second exhaust channel, the second injection channel is connected to one end of the second die cavity, and the second exhaust channel is connected to the other end of the second die cavity.

[0020] The beneficial effects of the technical solution provided by the embodiment of the present invention are as follows: the column core encapsulated product obtained by the present invention enables the column core and the encapsulated raw material to be integrally formed, the colloid can completely wrap the column core inside, reducing the probability of the column core falling off, and the surface of the product is integrally formed without gaps, thereby avoiding the generation of areas that cannot be cleaned, reducing the difficulty of cleaning the product, and the product does not require manual assembly, reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A flow chart showing a product encapsulation process according to an embodiment of the present invention is shown;

[0022] Figure 2 A schematic structural diagram of a product encapsulation device according to an embodiment of the present invention is shown;

[0023] Figure 3 A schematic structural diagram of a first rear module according to an embodiment of the present invention is shown;

[0024] Figure 4 Shown Figure 3 A magnified schematic diagram of the local structure of part A;

[0025] Figure 5 A schematic structural diagram of a second rear module according to an embodiment of the present invention is shown;

[0026] Figure 6 Shown Figure 5 A magnified schematic diagram of the local structure of part B;

[0027] Figure 7 A schematic structural diagram of an ejection device according to an embodiment of the present invention is shown;

[0028] Figure 8 A schematic structural diagram of a front module according to an embodiment of the present invention is shown;

[0029] Figure 9 Shown Figure 8 A magnified schematic diagram of the local structure of part C in the middle;

[0030] Figure 10 A schematic structural diagram of a column core according to an embodiment of the present invention is shown.

[0031] The symbols in the figure are explained as follows:

[0032] 10 front mold assembly, 11 front mold core, 112 first concave mold cavity, 13 guide hole, 14 positioning groove, 15 first injection channel, 16 first exhaust channel,

[0033] 20 first rear mold assembly, 21 first rear mold core, 211 convex mold cavity, 212 raised rib, 2121 raised portion, 213 through hole, 214 first boss, 22 base,

[0034] 30 second rear mold assembly, 31 second rear mold core, 311 second concave mold cavity, 312 second boss, 32 second injection channel, 33 second exhaust channel,

[0035] 40 ejector device, 41 ejector plate, 42 drive device, 43 ejector rod,

[0036] 50 column cores,

[0037] 101 guide column, 102 positioning block. DETAILED DESCRIPTION

[0038] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention and their beneficial effects will be further described in detail below with reference to the accompanying drawings.

[0039] like Figure 1 As shown, an embodiment of the present invention provides a product encapsulation process, wherein the encapsulation process is completed by cooperating a front module with N rear modules. The encapsulation process includes the following steps:

[0040] Step 1, column core placement: obtain the column core and place it on the first rear module;

[0041] Step 2: Forming the semi-finished column core encapsulated plastic product: the front module is sequentially assembled with the first to the N-1th rear modules, and the encapsulated plastic material is injected to obtain a semi-finished product that is solidified.

[0042] Step 3, forming the core rubber-coated finished product: the front module and the Nth rear module are combined into a mold and the rubber-coated raw material is injected to obtain a solidified finished product, completing the rubber-coating process;

[0043] Wherein, N is a natural number and N is greater than or equal to 2.

[0044] Specifically, in step 1, the first rear module is used to fix the column core. The column core is made of a solid material with a certain toughness and capable of withstanding high temperatures, such as a metal material or a thermosetting plastic. The column core is used to support the finished rubber-coated product, enabling the finished rubber-coated product to withstand large axial tension and radial pressure. In addition, to combine the beauty and practicality of the finished rubber-coated product, the column core can also be made of a thermoplastic plastic, such as polyphenylene sulfone resin (PPSU). Polyphenylene sulfone resin has a high degree of transparency, so that the column core has a uniform color after the rubber-coating process, hiding the traces of the column core inside the finished rubber-coated product. In addition, polyphenylene sulfone resin is resistant to steam and hydrolysis, non-toxic, resistant to high-temperature steam sterilization, highly transparent, and has good dimensional stability. It can be used in beverage and food dispensers, tableware, water cups, baby bottles, etc., and has high food safety.

[0045] In step 2, the front module is first combined with the first rear module and the encapsulation material is injected. After the encapsulation material is solidified and formed, the column core is partially encapsulated to form a first semi-finished product. The front module and the first rear module are opened, and the first semi-finished product of the column core encapsulation remains on the front module; then the front module is combined with the second rear module and the encapsulation material is injected again. The first semi-finished product of the column core encapsulation contacts with the encapsulation material on the second rear module again. After the encapsulation material in the second rear module is solidified and formed, the second semi-finished product is formed; according to the above procedure, the front module is combined with the third rear module, the fourth rear module and the N-1th rear module in turn, and finally the N-1th semi-finished product of the column core encapsulation is obtained; finally, the front module is combined with the Nth rear module and the encapsulation material is injected, so that the N-1th semi-finished product contacts with the encapsulation material on the Nth rear module, and the column core encapsulation finished product is finally obtained after solidification and forming.

[0046] It can be understood that the finished column core encapsulation product obtained through the above three steps makes the column core and the encapsulation raw material integrally formed, and the colloid can completely wrap the column core inside, reducing the probability of the column core falling off, and making the product's appearance integrally formed without gaps, thereby avoiding the creation of areas that cannot be cleaned, reducing the difficulty of cleaning the product, and the product does not require manual assembly, reducing labor costs.

[0047] It should also be noted that for column core rubber-coated products with complex shapes and structures, different areas of the rubber-coated products can be formed separately by combining a front module and multiple rear modules, and finally an integrated rubber-coated finished product can be obtained, thereby reducing the difficulty of the process.

[0048] Where N is a natural number greater than or equal to 2. For example, when N is 2, the front module and the first rear module are combined to form a semi-finished column core encapsulated rubber product, and the front module is then combined with the second rear module to form a finished column core encapsulated rubber product. If N is 4, the front module is respectively combined with the first, second, and third rear modules to form a semi-finished column core encapsulated rubber product, and the front module is then combined with the fourth rear module to form a finished column core encapsulated rubber product. Conceivably, N can also be 5, 6, 7, 8, and so on.

[0049] Among them, the semi-finished product of the column core rubber coating is the product status of the column core having completed the rubber coating of part of the area, and the finished product of the column core rubber coating is the product status of the column core having completed the rubber coating of all areas.

[0050] Furthermore, when N is greater than 2, to ensure that the front mold and the rear mold are completely closed when combined, the concave mold cavity set by the N-x+1th rear mold can fully accommodate the semi-finished colloid part cast by the concave mold cavity set by the Nxth rear mold, where x is a natural number and 1≤X<N-1. For example, when N is 4, the die cavity provided by the third rear module can completely accommodate the gel part of the column core rubber-coated semi-finished product cast by the die cavity provided by the second rear module, and the die cavity provided by the fourth rear module can completely accommodate the gel part of the column core rubber-coated semi-finished product cast by the die cavity provided by the third rear module. Therefore, the gel of the column core rubber-coated product part cast by the second rear module, the third rear module, and the fourth rear module in sequence presents three different layers, which are formed in sequence from the inside to the outside, and the gel of the outer layer completely wraps the gel of the inner layer. It can be imagined that by using different colors of rubber-coated raw materials combined with different shapes of die cavities provided by different rear modules, the gel part of the finally formed column core rubber-coated finished product can present patterns, texts, and structures of different colors and shapes, and the rubber-coated finished product is formed in one piece, so that the rubber-coated finished product is not only beautiful but also has good structural strength. For example, if the finished rubber-coated product is a children's toothbrush, and if you want to get a handle with a cute animal image, the concave mold cavity set by the second rear module is used to form the innermost layer of colloid: the colored and spherical eye part; the concave mold cavity set by the third rear module is used to form the middle layer of colloid: the transparent head outline part; the concave mold cavity set by the fourth rear module is used to form the outermost layer of colloid: the colored nose, mouth and other parts, and the front module is sequentially combined with the first rear module, the second rear module, the third rear module, and the fourth rear module for molding, so as to obtain a children's toothbrush with a realistic animal image on the handle, making the product more attractive to children, and setting a cute animal image is also beneficial to the physical and mental health of children.

[0051] It is understandable that the encapsulated product obtained by this technical solution can also be provided with different patterns and texts according to different needs to meet the needs of different customer groups.

[0052] The existing overmolding process that uses a single mold for casting and molding is difficult to repair when producing overmolded products with one-piece molding and relatively complex external shapes. If the mold is partially damaged, the entire mold needs to be replaced. However, the present technical solution uses a front module to cooperate with at least two rear modules. If a concave mold cavity in the current module or the rear module is damaged, the mold core can be directly replaced, saving mold costs, enabling the rapid resumption of the overmolding process and reducing production delays.

[0053] Furthermore, ejection equipment is provided on the first rear module to the N-1 rear module, and the ejection equipment is used to eject the semi-finished product of the column core rubber encapsulation (or the semi-finished product formed when the film is closed) from the rear module provided with the ejection equipment and leave it in the first concave mold cavity provided in the front module. For example, when N is 3, the front module is first combined with the first rear module and the encapsulation material is injected. After the encapsulation material is solidified and formed, the column core is partially encapsulated to form a first semi-finished product. The front module and the first rear module are opened, and the first semi-finished product of the column core encapsulated with rubber is ejected from the first rear module by the ejection device on the first rear module, and the first semi-finished product remains on the front module; then the front module and the second rear module are combined, and after the encapsulation material in the second rear module is solidified and formed, a second semi-finished product is formed. The front module and the second rear module are opened, and the second semi-finished product of the column core encapsulated with rubber is ejected from the second rear module by the ejection device on the second rear module, and the second semi-finished product remains on the front module; finally, the front module is combined with the third rear module in turn to obtain the finished product of the column core encapsulated with rubber.

[0054] Furthermore, before obtaining the column core and placing it on the first rear module, step 1: core placement includes applying adhesive to the surface of the column core to bond the adhesive in the semi-finished product encapsulated with the column core to the column core. The adhesive is specifically a glue for PPSU column cores.

[0055] like Figures 2 to 10 As shown, the second technical solution of the present invention proposes a product encapsulation device for implementing the process of the product encapsulation process in the first technical solution, such as Figure 2As shown, the product encapsulation device includes: a front module 10, a first rear module 20 and a second rear module 30. The front module 10 has a front mold core 11, the first rear module 20 includes a first rear mold core 21, and the second rear mold core 30 includes a second rear mold core 31. The first rear mold core 21 and the second rear mold core 31 are parts that fit with the front mold core 11. The front mold core 11 is provided with a plurality of first concave mold cavities 112. The first concave mold cavities 112 are concave from the surface of the front mold core 11 to the inside. The first female mold cavity 112 is used to accommodate the rubberized raw material. The first rear mold core 21 is provided with a plurality of male mold cavities 211. The male mold cavity 211 is used to place the column core 50. The male mold cavity 211 protrudes outward from the surface of the first rear mold core 21. Among them, the male mold cavity 211 corresponds to the first female mold cavity 112 one by one. The front mold group 10 and the first rear mold group 20 are molded together, that is, the first female mold cavity 112 and the male mold cavity 211 are molded together, so that the male mold cavity 211 and the first female mold cavity 112 are aligned. A closed space is formed between them, and a part of the male mold cavity 211 extends into the first female mold cavity 112. After the encapsulating material is injected, a side portion of the column core 50 arranged on the male mold cavity 211 is wrapped by the encapsulating material. When the encapsulating material is cured, the column core 50 and the encapsulating material form a solid encapsulating semi-finished product to form the upper half of the finished product; the second rear mold core 31 is provided with a plurality of second female mold cavities 311. The second female mold cavities 311 are formed by the inward depression of the surface of the second rear mold core 31. After the upper half of the finished product is formed, the first rear mold and the second rear mold are slid left and right, so that the front mold is combined with the second rear mold again to form a closed space between the first female mold cavity 112 and the second female mold cavity 311. After the encapsulating material is injected, the encapsulating semi-finished product remaining on the front mold core 11 contacts and is connected to the encapsulating material in the second female mold cavity 311 as a whole. After curing, the lower half of the encapsulated finished product is formed to finally obtain the finished product.

[0056] Furthermore, if Figure 4 As shown, the male mold cavity 211 is surrounded by raised ribs 212 protruding from the surface of the first rear mold core 21. For example, in a specific embodiment, the raised ribs 212 form a closed ring shape, and the shape formed by the raised ribs 212 matches the brush core, so that the inner side wall of the raised ribs 212 clamps the brush core.

[0057] Furthermore, the outer side wall of the raised rib 212 has a slope of 10 to 30 degrees relative to the surface of the first rear mold core 21. Specifically, the outer side wall of the raised rib 212 is inclined inward. By setting the slope, the flow of the encapsulated material is smoothed, and the "turbulence" caused by the disturbance of the liquid flow by the raised rib 212 is reduced, thereby reducing the impact force of the liquid on the column core 50, thereby reducing the impact of the encapsulated material on the column core 50 during flow, and reducing the displacement of the column core 50 caused by the impact of the liquid.

[0058] Furthermore, the ratio of the width of the male mold cavity 211 to the width of the cylindrical core 50 is 1 to 1.1.

[0059] It should also be noted that when the column core 50 is placed in the punch cavity 211, the side of the column core 50 away from the bottom surface of the punch cavity 211 extends out from the punch cavity 211, so that the colloid in the encapsulated semi-finished product wraps at least three sides of the column core 50, preventing the column core 50 from falling off from the colloid in the encapsulated semi-finished product.

[0060] Along the axial direction of the column core 50, a plurality of pairs of protrusions 2121 are provided on the inner wall of the punch cavity 211. The protrusions 2121 are used to clamp the column core 50, so that the column core 50 is clamped in the die cavity to prevent the column core 50 from moving inside the punch cavity 211, thereby improving the accuracy of the rubber encapsulation of the column core 50.

[0061] Furthermore, if Figure 3 and Figure 7 As shown, the product encapsulation device also includes an ejector device 40, which is fixed to the base 22 of the first rear mold assembly 20. The ejector device 40 includes an ejector plate 41 disposed between the base 22 and the first rear mold core 21, a set of ejector pins 43 disposed on the ejector plate 41, and a drive device 42 in transmission connection with the ejector pins 43. The ejector pins 43 include multiple ejector pins 43, and the drive device 42 can drive the ejector pins 43 to extend and retract. Each male mold cavity 211 is provided with a plurality of through-holes 213 extending through the first rear mold core 21. The ejector pins 43 pass through the through-holes 213, allowing the ejector pins 43 to extend or retract from the bottom of the male mold cavity 211. The ejector device 40 ensures that the encapsulated semi-finished product remains in the first female mold cavity 112 when the front mold assembly 10 and the first rear mold assembly 20 are opened.

[0062] Specifically, the driving device 42 is a cylinder, and the push rod 43 is a pneumatic telescopic rod connected to the cylinder; or the driving device 42 is an oil cylinder, and the push rod 43 is a hydraulic telescopic rod connected to the oil cylinder. The oil cylinder is connected to the hydraulic telescopic rod through an oil pipe. When the oil cylinder supplies oil to the hydraulic telescopic rod, the hydraulic telescopic rod extends, and vice versa.

[0063] Furthermore, the front module 10 is provided with a guide hole 13, and the second rear module 30 and the first rear module 20 are both provided with a guide post 101 corresponding to the guide hole 13. The guide hole 13 and the guide post 101 are used to provide guidance when the front module 10 is molded with the first rear module 20 and the second rear module 30, respectively, to improve the accuracy of the mold closing. The second rear module 30 and the first rear module 20 are both provided with a number of raised positioning blocks 102, and the front module 10 is provided with a positioning groove 14 that cooperates with the positioning blocks 102. The engagement of the positioning blocks 102 with the positioning grooves 14 achieves precise positioning of the front module 10 and the first rear module 20, and the front module 10 and the second rear module 30 when the mold is closed, thereby improving the production quality of the overmolded product.

[0064] Furthermore, if Figure 4As shown, the first rear mold core 21 is provided with a plurality of first bosses 214 protruding from the surface of the first rear mold core 21. The male mold cavity 211 is provided in the first bosses 214. The first bosses 214 are used to form a sealing structure with the surface of the front mold core 11 to prevent the liquid encapsulation material from flowing out of the gap between the first rear mold core 21 and the front mold core 11 when the front mold assembly 10 and the first rear mold assembly 20 are closed. Figure 5 、 Figure 6 、 Figure 8 and Figure 9 As shown, the second rear mold core 31 is provided with a plurality of second bosses 312 protruding from the surface of the second rear mold core 31, and the second concave mold cavity 311 is provided in the second bosses 312. The second bosses 312 are used to fit with the surface of the front mold core 11 to form a sealing structure to prevent the liquid encapsulating material from flowing out from the gap between the second rear mold core 31 and the front mold core 11 when the front mold group 10 and the second rear mold group 30 are closed.

[0065] like Figure 9 The front mold assembly 10 is provided with a first injection channel 15 and a first exhaust channel 16. The first injection channel 15 is connected to one end of the first concave mold cavity 112, and the first exhaust channel 16 is connected to the other end of the first concave mold cavity 112. When the front mold assembly 10 and the first rear mold are assembled, liquid encapsulating material is injected into the first concave mold cavity 112 through the first injection channel 15. The air in the first concave mold cavity 112 is discharged through the first exhaust channel 16, so that the liquid encapsulating material fills the first concave mold cavity 112. After the liquid encapsulating material solidifies, a semi-finished product is obtained. Specifically, on the front mold core 11, every two first concave mold cavities 112 form a group and share a first injection channel 15, and each first concave mold cavity 112 is connected to a first exhaust channel 16.

[0066] like Figure 6 As shown, the second rear module 30 is provided with a second injection channel 32 and a second exhaust channel 33. The second injection channel 32 is connected to one end of the second die cavity 311, and the second exhaust channel 33 is connected to the other end of the second die cavity 311. After the front module 10 and the first rear module are combined to form a semi-finished product, the front module 10 and the second rear module 30 are then closed together. At this time, the liquid encapsulating material is injected into the second die cavity 311 through the second injection channel 32 provided on the second rear module 30. The air in the second die cavity 311 is discharged through the second exhaust channel, so that the liquid encapsulating material fills the second die cavity 311. After the liquid encapsulating material solidifies, the finished product is obtained. Specifically, each second boss 312 is provided with two second die cavities 311, and the two second die cavities 311 share a second injection channel 32. Each second die cavity 311 is connected to a second exhaust channel 33.

[0067] The beneficial effects of the present invention are as follows: the column core encapsulation product obtained by the present invention enables the column core and the encapsulation raw material to be integrally formed, the colloid can completely wrap the column core inside, reducing the probability of the column core falling off, and the surface of the product is integrally formed without gaps, thereby avoiding the generation of areas that cannot be cleaned, reducing the difficulty of cleaning the product, and the product does not require manual assembly, reducing labor costs.

[0068] In the present invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0069] In the description of the present invention, it should be understood that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0070] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0071] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A product encapsulation process, characterized in that: The encapsulation process is completed by the cooperation of the front module and N rear modules. The encapsulation process includes the following steps: Step 1, column core placement: obtain the column core and place it on the first rear module; Step 2, forming the semi-finished column core encapsulated plastic product: the front module is sequentially assembled with the first to N-1 rear modules, and the encapsulated plastic material is injected to obtain a semi-finished product that is cured and formed; Step 3, forming the core rubber-coated finished product: the front module and the Nth rear module are combined into a mold and the rubber-coated raw material is injected to obtain a solidified finished product, completing the rubber-coating process; Wherein, N is a natural number and N is greater than or equal to 2, When N=2, the product encapsulation device includes: A front module, a first rear module, and a second rear module, wherein the front module includes a front mold core, the first rear module includes a first rear mold core, and the second rear module includes a second rear mold core; The front mold core is provided with a plurality of first concave mold cavities, which are recessed inward from the surface of the front mold core, and the first concave mold cavity is used to accommodate the encapsulation raw material. The first rear mold core is provided with a plurality of convex mold cavities, which are used to place the column core, and the convex mold cavity protrudes outward from the surface of the first rear mold core, wherein the convex mold cavity corresponds to the first concave mold cavity one by one, and the front mold group and the first rear mold combination mold, that is, the first concave mold cavity and the convex mold cavity are molded together, so that a closed space is formed between the convex mold cavity and the first concave mold cavity, and a part of the convex mold cavity extends into the first concave mold cavity. After the encapsulation raw material is injected, a side portion of the column core arranged on the convex mold cavity is encapsulated by the encapsulation raw material. Wrap, when the encapsulation raw material is solidified, the column core and the encapsulation raw material form a solid encapsulation semi-finished product to form the upper half of the finished product; the second rear mold core is provided with a plurality of second concave mold cavities, and the second concave mold cavities are formed by the inward depression of the surface of the second rear mold core. After the upper half of the finished product is formed, the first rear mold assembly and the second rear mold assembly are slid left and right to make the front mold assembly and the second rear mold assembly mold together again, so that the first concave mold cavity and the second concave mold cavity form a closed space. After the encapsulation raw material is injected, the encapsulation semi-finished product remaining on the front mold core contacts and connects with the encapsulation raw material in the second concave mold cavity to form a whole. After curing, the lower half of the encapsulation finished product is formed to finally obtain the finished product. When N is greater than 2, the concave mold cavity provided by the N-x+1th post-module can completely accommodate the semi-finished colloid portion cast by the concave mold cavity provided by the Nxth post-module, wherein x is a natural number and 1≤X<N-1, The male mold cavity is surrounded by a raised rib protruding from the surface of the first rear mold core, and the outer side wall of the raised rib has a slope of 10 degrees to 30 degrees relative to the surface of the first rear mold core. The first rear mold core is provided with a plurality of first bosses protruding from the surface of the first rear mold core, the convex mold cavity is provided in the first bosses, and the first bosses are used to fit with the surface of the front mold core to form a sealing structure. The second rear mold core is provided with a plurality of second bosses protruding from the surface of the second rear mold core, the second concave mold cavity is provided in the second bosses, and the second bosses are used to fit with the surface of the front mold core to form a sealing structure.

2. The product encapsulation process according to claim 1, characterized in that: Ejection equipment is provided on the first rear module to the N-1 rear module, and the ejection equipment is used to eject the semi-finished product of the column core rubber coating from any one of the first rear module to the N-1 rear module and leave it in the concave mold cavity set in the front module.

3. The product encapsulation process according to claim 1, characterized in that: Before step 1, the method further includes: Apply glue adhesive on the surface of the column core.

4. The product encapsulation process according to claim 1, characterized in that: The ratio of the width of the male mold cavity to the width of the column core is 1-1.

1.

5. The product encapsulation process according to claim 1, characterized in that: Also includes: Ejector equipment; The ejection device is fixed on the base of the first rear mold assembly, and includes an ejection plate arranged between the base and the first rear mold core, an ejector rod group arranged on the ejection plate, and a driving device connected to the ejector rod group, the ejector rod group includes a plurality of ejector rods, and the driving device can drive the ejector rods to extend and retract; Wherein, a plurality of through holes penetrating the first rear mold core are provided in each of the male mold cavities, and the ejector rod passes through the through holes so that the ejector rod can extend from or retract into the bottom of the male mold cavity.

6. The product encapsulation process according to claim 1, characterized in that: The front module is provided with a guide hole, and the second rear module and the first rear module are both provided with a guide column corresponding to the guide hole. The second rear module and the first rear module are both provided with a plurality of protruding positioning blocks, and the front module is provided with positioning grooves matched with the positioning blocks.

7. The product encapsulation process according to claim 1, characterized in that: The front mold assembly is provided with a first injection channel and a first exhaust channel, the first injection channel is connected to one end of the first concave mold cavity, and the first exhaust channel is connected to the other end of the first concave mold cavity; The second rear mold assembly is provided with a second injection channel and a second exhaust channel, the second injection channel is communicated with one end of the second concave mold cavity, and the second exhaust channel is communicated with the other end of the second concave mold cavity.

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