A type of injection mold for crack-resistant screens

Abstract

This invention discloses a coating injection mold for a crack-resistant screen, relating to the field of injection mold technology. It has the advantages of automatically placing and positioning a glass plate within the mold, thus improving product quality. The key technical points are: a cavity is formed on the side of the moving mold plate facing the fixed mold plate; a moving core plate is movably connected within the cavity; the moving core plate is provided with several suction columns, and the moving core plate can be moved out of the cavity to an external receiving position; a robotic arm is also included, with a suction cup and an adaptive adjustment component at its end; a movable positioning component is provided on the moving mold plate. When the robotic arm transports the glass plate onto the moving core plate, the positioning component moves towards the glass plate, pushing and positioning the edge of the glass plate. During the positioning process, the adaptive adjustment component allows the glass plate to move relative to the robotic arm; after the positioning component completes the positioning of the glass plate, each suction column adsorbs and fixes the glass plate onto the moving core plate.

Description

Technical Field

[0001] This invention relates to the field of injection mold technology, specifically to an overmolding injection mold for a crack-resistant screen. Background Technology

[0002] In the automotive interior parts manufacturing industry, especially for the long strip of glass trim between the driver's and passenger's seats in electric vehicles, a rubber-coating injection molding process is often used to encapsulate the glass panel and a rigid plastic panel into one piece. The typical process is as follows: first, the glass panel is placed inside the injection mold; then the mold is closed, and molten plastic material is injected into the mold cavity, allowing the molten plastic to enter the pre-reserved gap between the rigid plastic panel and the glass panel, simultaneously wrapping the edges of both the glass panel and the rigid plastic panel. After cooling, a complete, sealed rubber-coated component is formed, possessing both aesthetic appeal and structural strength. Figure 10 As shown.

[0003] Currently, when manually placing glass plates into the mold, the position is repeatedly calibrated, and the consistency of placement is poor among different operators or even the same operator, resulting in large fluctuations in product quality and low product quality. Summary of the Invention

[0004] The purpose of this invention is to provide a rubber-coating injection mold for a crack-resistant screen, which has the advantages of automatically placing the glass plate into the mold for positioning and improving product quality.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention provides an injection mold for a crack-resistant screen, comprising a fixed template and a movable template that open and close from left to right. The movable template has a cavity on one side facing the fixed template. A movable core plate is movably connected inside the cavity. The movable core plate is provided with a plurality of suction columns and can be moved out of the cavity to an external receiving position. It also includes a robotic arm, the end of which is equipped with a suction cup and an adaptive adjustment component. The robotic arm uses the suction cup to pick up and transport the glass plate to the moving core plate located at the external receiving position. The moving template is equipped with a movable positioning component. When the robot arm transports the glass plate to the moving core plate, the positioning component moves toward the glass plate and pushes and positions the edge of the glass plate. During the positioning process, the adaptive adjustment component allows the glass plate to move relative to the robot arm. After the positioning component completes the positioning of the glass plate, each of the suction columns adsorbs and fixes the glass plate on the moving core plate. The positioning component retracts, and the moving core plate drives the glass plate to move into the first cavity. The moving template is provided with a first driving member for driving the moving core plate to move out of or into the cavity.

[0006] By adopting the above technical solution, the first driving component drives the moving core plate to move along the opening and closing direction, so that it moves out of the cavity of the moving template until it reaches the external receiving position (i.e., the open space outside the moving template). The robot automatically feeds the glass plate: the robot uses the suction cup at its end to adsorb the glass plate and automatically transports the glass plate to the moving core plate located at the external receiving position. Edge pushing and positioning: after the glass plate is placed in place, the positioning component set on the moving template moves towards the glass plate and pushes the edge of the glass plate from multiple directions. The adaptive adjustment component allows the glass plate to move relative to the robot, so that the glass plate moves to a precise predetermined position on the moving core plate. During this process, the adaptive adjustment component allows the glass plate to have a slight translation or deflection relative to the end of the robot. Adsorption fixing and positioning component retraction: after the positioning component completes the precise positioning of the glass plate, each suction column on the moving core plate starts to work, firmly adsorbing and fixing the glass plate on the moving core plate. Then, the positioning component moves in the opposite direction and retracts to the initial position, making room for subsequent mold closing and the suction cup on the robot releases the adsorption force on the glass plate. Moving core plate returns to cavity one: The first driving component moves again, moving the moving core plate together with the glass plate that has been precisely positioned and fixed by adsorption into cavity one of the moving template. At this point, the glass plate has completed automatic placement and precise positioning in the mold, waiting for mold closing and injection molding. The placement accuracy of the glass plate is improved, thereby improving product quality.

[0007] Preferably, the positioning component includes a plurality of sliders distributed on both sides of the cavity along its length, and a moving block located below the cavity. The moving template is provided with a second driving member for driving the moving block and each slider to move.

[0008] Preferably, the fixed template has a cavity two for inserting a rigid plastic plate, the bottom of the cavity two has a positioning groove for a protrusion on the rigid plastic plate to enter, and a positioning block is slidably provided inside the fixed template for inserting into a preset hole of the protrusion. When the moving template and the fixed template are closed, there is a gap 2 between the edges of the glass plate and the rigid plastic plate and the cavity walls of cavity one and cavity two. There is a gap 1 between the glass plate and the rigid plastic plate for the flow of molten plastic. The fixed template is provided with several branch channels that are spaced apart along the length of cavity two. One end of each branch channel extends to cavity two. The rigid plastic plate is provided with holes for the molten material in each branch channel to flow into the gap 1.

[0009] Preferably, the adaptive adjustment element includes: A U-shaped mounting plate is fixedly installed at the end of the robot arm, with a fixing plate between its two opposite walls; An adaptive plate is arranged parallel to the fixed plate, and the suction cup is fixed to the side of the adaptive plate opposite to the fixed plate; A rotating column, one end of which is fixed to the side of the adaptive plate facing the fixed plate and coaxially distributed with the suction cup, and the other end of the rotating column is coaxially fixed with a disk, the diameter of which is larger than the diameter of the rotating column; The fixed plate is provided with a coaxially connected movable groove one and movable groove two. Movable groove one is in clearance fit with the rotating column, and movable groove two is in clearance fit with the disc. A limiting element is used to selectively lock or release the movement of the adaptive plate relative to the fixed plate.

[0010] Preferably, the limiting member includes: A conical hole formed on the adaptive plate; A cone that matches the conical bore; And a third driving member fixedly mounted on the fixed plate, the third driving member being used to drive the cone to move into the cone hole to lock the adaptive plate, or to move out of the cone hole to release the adaptive plate.

[0011] Preferably, the limiting member is configured such that: before the positioning assembly positions the glass plate, the third driving member drives the cone to move out of the conical hole, so that the adaptive plate is in a floating state; after the positioning assembly completes the positioning of the glass plate and the suction column adsorbs and fixes the glass plate, the suction cup releases its adsorption on the glass plate. As the robotic arm moves the suction cup away from the glass plate, the third driving member drives the cone to move into the conical hole, locking the adaptive plate and resetting it to its initial position, so that the adaptive adjustment member is ready to pick up the next glass plate.

[0012] Preferably, the moving template has guide grooves on the side facing the fixed template corresponding to the position of the slider and the moving block, which allow the slider and the moving block to move away from or towards the cavity. The slider and the moving block are detachably connected in each guide groove, and one end of each guide groove extends out of the edge of the moving template. The second driving component is a second hydraulic cylinder that is detachably connected to the slider and the moving block.

[0013] Preferably, each of the second hydraulic cylinders is located outside the moving template, and each of the sliders and moving blocks has a T-shaped groove on the side facing the second hydraulic cylinder. The T-shaped groove passes through the opposite sides of the slider or moving block. A cylinder is coaxially fixed on the piston rod of the second hydraulic cylinder. An annular groove is formed on the outer wall of the cylinder. The annular groove allows one end of the cylinder to enter the T-shaped groove, and the other end to be located on the outer wall of the slider or moving block.

[0014] Preferably, the first driving component is a first hydraulic cylinder disposed on the moving template and located outside the moving template. The piston rod of the first hydraulic cylinder passes through the moving template and is fixed to one side of the moving core plate. A plurality of guide pillars are fixedly provided at the bottom of the cavity. The moving core plate is provided with sliding grooves for each guide pillar to slide.

[0015] Preferably, a plurality of limiting rods are provided on the moving core plate, the lower end of each limiting rod is screwed into the bottom of the cavity one, and the upper end of each limiting rod is coaxially fixedly connected to a limiting post with a diameter larger than that of the limiting rod. The moving core plate is provided with a through hole one and a through hole two for the limiting post and the limiting rod to pass through. When the lower end of the limiting rod is screwed into the bottom of the cavity one, there is a gap between the end of the limiting post and the bottom of the through hole one.

[0016] The beneficial effects of this invention are as follows: By moving the moving core plate to the external receiving position, the placement and positioning of the glass plate can be carried out entirely in the open space outside the mold, avoiding rigid collision between the glass edge and the moving template caused by the narrow space and structural interference inside the cavity. The positioning component performs push positioning when the glass plate is not completely fixed. At this time, the glass plate can move slightly relative to the end of the robot arm, which can ensure positioning accuracy and avoid stress concentration due to rigid clamping. After positioning, it is then attracted and locked by the suction column to ensure positional accuracy in the subsequent process of moving into the cavity. The entire process of automatic material feeding by robotic arms, automatic pushing of positioning components, automatic adsorption by suction columns, and automatic transfer of moving core plates requires no manual intervention. The placement cycle of a single glass plate is shortened, efficiency is improved compared to manual placement, and quality fluctuations caused by differences in operator skills are reduced. This process is particularly suitable for long, thin glass panels exceeding 800 mm in length, solving the problem of automatic and precise positioning of such fragile parts during overmolding and injection molding. It provides a reliable guarantee for the mass production of high-end interior components such as electric vehicle central control screens and continuous glass trim panels. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this embodiment; Figure 2 This is a structural schematic diagram illustrating the dynamic template in this embodiment; Figure 3 for Figure 2 Enlarged structural diagram of section A in the middle; Figure 4 for Figure 2 Enlarged structural diagram of section B in the middle; Figure 5 This is a schematic diagram illustrating the structure of the insertion plate in this embodiment; Figure 6 This is a schematic diagram illustrating the structure of the suction column in this embodiment; Figure 7 This is a schematic diagram illustrating the structure of the mounting plate in this embodiment; Figure 8 This is a schematic diagram illustrating the structure of the adaptive board in this embodiment; Figure 9 This is a schematic diagram illustrating the structure of the disk in this embodiment; Figure 10 This is a structural diagram illustrating the edges of the glass plate and the rigid plastic plate encased in molten plastic. Figure 11 This is a structural diagram used to illustrate a rigid plastic sheet.

[0019] Explanation of reference numerals in the attached figures: In the diagram: 1. Fixed template; 11. Cavity 2; 12. Runner; 2. Moving template; 21. Cavity 1; 22. Moving core plate; 221. Suction column; 222. Mounting ring; 223. Insertion hole; 224. Suction hole; 225. Conical hole; 226. Suction pipe; 23. Placement plate; 231. Placement groove; 232. Flexible hose; 24. Slider; 25. Moving block; 26. Guide groove; 261. Second hydraulic cylinder; 262. T-slot; 263. Cylinder; 2631. Annular groove; 264. Extension plate; 2641. Bevel; 26 5. Mounting slot; 266. Clamping block; 267. Horizontal plate; 27. First hydraulic cylinder; 28. Guide column; 29. ​​Limiting rod; 291. Limiting column; 292. Through hole one; 293. Through hole two; 3. Suction cup; 31. Mounting plate; 32. Fixing plate; 33. Rotating column; 331. Disc; 332. Moving slot one; 333. Moving slot two; 34. Adaptive plate; 341. Conical hole; 342. Cone; 343. Third hydraulic cylinder; 4. Glass plate; 41. Rigid plastic plate; 42. Protrusion; 421. Preset hole. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0022] A type of injection mold for overmolding a crack-resistant screen, such as Figure 1-6 The mold includes a fixed mold plate 1 that opens and closes to the left and right, and a movable mold plate 2. A cavity 21 is formed on the side of the movable mold plate 2 facing the fixed mold plate 1. A movable core plate 22 is movably connected within the cavity 21. The length direction of the movable core plate 22 is distributed along the length direction of the glass plate 4. Several suction columns 221 are detachably connected to the movable core plate 22. For example, there are four suction columns 221. The length direction of each suction column 221 is distributed along the opening and closing direction of the mold, and the suction columns 221 are spaced apart along the length direction of the movable core plate 22. The two outermost suction columns 221 are... 1. Distributed at both ends of the moving core plate 22 along its length, each suction post 221 extends out of the moving core plate 22 from the side away from the fixed template 1, and each suction post 221 is coaxially fixed with an installation ring 222 on the outer wall of the end facing the bottom of the cavity 21. The installation ring 222 is embedded in the moving core plate 22 and can be fixed to the moving core plate 22 by screws, thereby installing each suction post 221 on the moving core plate 22. One side of the installation ring 222 is flush with the side of the moving core plate 22 facing the bottom of the cavity 21.

[0023] like Figure 1-6The moving core plate 22 has insertion holes 223 for inserting each suction post 221. Each suction post 221 has a suction hole 224 coaxially. When the mounting ring 222 is installed on the moving core plate 22, the side of each suction post 221 facing the fixed template 1 abuts against the bottom of the insertion hole 223. Each suction post 221 has a conical hole 225 on its end face facing the bottom of the insertion hole 223, which communicates with the suction hole 224 and is coaxially distributed. The end of the conical hole 225 with the larger opening size is close to the bottom of the insertion hole 223. Each suction column 221 has a sealing ring embedded around the conical hole 225 on its end face. The moving core plate 22 has several suction holes on the side facing the fixed template 1 that communicate with each insertion hole 223. Each suction hole is distributed corresponding to the conical hole 225 to facilitate the adsorption of the glass plate 4 onto the moving core plate 22. The moving template 2 has suction pipes 226 that extend into the cavity 21 and communicate with each suction hole 224. The suction pipes 226 are made of rigid iron pipes and are distributed along the opening and closing direction of the mold. The moving template 2 is located away from the fixed template 1. A placement plate 23 is fixedly provided on the side. A placement groove 231 is opened on the side of the placement plate 23 facing the moving template 2. The placement groove 231 is for inserting the suction pipe 226. One end of the suction pipe 226 is fixedly connected to the suction column 221 and communicates with the suction hole 224. The other end extends through the groove on the moving template 2 into the placement groove 231, and a flexible hose 232 is connected to one end inside the placement groove 231. When the moving core plate 22 moves into or out of the first cavity 21, the suction pipe 226 moves synchronously with the moving core plate 22 and is placed into the groove. 231 provides space for the movement of the suction pipe 226. The end of the hose 232 away from the suction pipe 226 is connected to a vacuum pump or vacuum generator set outside the moving template 2. The hose 232 facilitates the synchronous movement of the suction pipe 226 with the moving core plate 22. During the movement, one end of the suction pipe 226 is always in the insertion groove 231. The sealing ring seals the gap between the suction column 221 and the bottom of the insertion hole 223, which facilitates the airflow to enter the conical hole through each suction hole, and then enter the suction hole 224 and the suction pipe 226.

[0024] The movable core plate 22 can be moved out of the cavity 21 to the external receiving position.

[0025] like Figure 1-7 A type of anti-crack screen overmolding injection mold also includes a robot arm. The end of the robot arm is equipped with a suction cup 3 and an adaptive adjustment component. The robot arm uses the suction cup 3 to pick up the glass plate 4 and transport it to the moving core plate 22 located at the external receiving position. like Figure 1-7 The moving template 2 is equipped with a movable positioning component. When the robot transports the glass plate 4 to the moving core plate 22, the positioning component moves toward the glass plate 4 and pushes and positions the edge of the glass plate 4. During the positioning process, the adaptive adjustment component allows the glass plate 4 to move relative to the robot. like Figure 1-7After the positioning component completes the positioning of the glass plate 4, each suction column 221 adsorbs and fixes the glass plate 4 on the moving core plate 22. The positioning component retracts, and the moving core plate 22 drives the glass plate 4 to move into the cavity 21. The moving template 2 is provided with a first driving member for driving the moving core plate 22 to move out of or into the cavity 21.

[0026] like Figure 1-7 The first driving component drives the moving core plate 22 to move along the opening and closing direction, causing it to move out of the cavity 21 of the moving template 2 until it reaches the external receiving position (i.e., the open space outside the moving template 2). The robotic arm automatically loads the glass plate 4: the robotic arm uses its suction cup 3 at its end to pick up the glass plate 4, and automatically transports the glass plate 4 to the moving core plate 22 located at the external receiving position. Edge pushing and positioning: after the glass plate 4 is placed in place, the positioning component on the moving template 2 moves towards the glass plate 4, pushing the edge of the glass plate 4 from multiple directions. The adaptive adjustment component allows the glass plate 4 to move relative to the robotic arm, so that the glass plate 4 moves on the moving core plate 22 to a precise position. Pre-positioning: During this process, the adaptive adjustment allows the glass plate 4 to undergo slight translation or deflection relative to the end of the robot arm; Adsorption fixing and positioning assembly retraction: After the positioning assembly completes the precise positioning of the glass plate 4, each suction column 221 on the moving core plate 22 starts to work, firmly adsorbing and fixing the glass plate 4 onto the moving core plate 22. Subsequently, the positioning assembly moves in the opposite direction and retracts to the initial position, making room for subsequent mold closing, and the suction cup 3 on the robot arm releases the adsorption force on the glass plate 4. That is, after the suction column 221 adsorbs the glass plate 4, the positioning assembly first retracts to the initial position, then the suction cup 3 on the robot arm releases the vacuum, and finally the robot arm drives the adaptive adjustment to withdraw. Moving core plate 22 moves back to cavity 21: The first driving component moves again, driving the moving core plate 22 together with the glass plate 4 that has been precisely positioned and adsorbed and fixed, into the cavity 21 of the moving template 2. At this point, the glass plate 4 has completed automatic placement and precise positioning in the mold, waiting for mold closing and injection molding. The placement accuracy of the glass plate 4 is improved, thereby improving product quality.

[0027] like Figure 2 and Figure 4The positioning component includes multiple sliders 24 distributed on both sides of the cavity 21 along its length, and a moving block 25 located below the cavity 21. The moving template 2 is provided with a second driving member for driving the moving block 25 and each slider 24 to move. The specific connection structure is as follows: the moving template 2 has guide grooves 26 on the side facing the fixed template 1, corresponding to the positions of the sliders 24 and the moving block 25, for the sliders 24 and the moving block 25 to move away from or towards the cavity 21. The sliders 24 and the moving blocks 25 are detachably connected in each guide groove 26, and one end of each guide groove 26 extends out of the edge of the moving template 2. The second driving member is a second hydraulic cylinder 261 detachably connected to the sliders 24 and the moving block 25.

[0028] like Figure 2 and Figure 4 Each second hydraulic cylinder 261 is located outside the moving template 2. Each slider 24 and moving block 25 has a T-shaped groove 262 on the side facing the second hydraulic cylinder 261. The T-shaped groove 262 passes through the opposite sides of the slider 24 or the moving block 25, that is, the two sides along the opening and closing direction of the mold. A cylinder 263 is coaxially fixed on the piston rod of the second hydraulic cylinder 261. An annular groove 2631 is formed on the outer wall of the cylinder 263. The annular groove 2631 allows one end of the cylinder 263 to enter the T-shaped groove 262, and the other end to be located on the outer wall of the slider 24 and the moving block 25. The opposite groove walls of the annular groove 2631 contact the inner and outer groove walls of the T-shaped groove 262 respectively, so that the piston rod of the second hydraulic cylinder 261 can push the slider 24 or the moving block 25 to move through the cylinder 263.

[0029] like Figure 2 and Figure 4 The moving block 25 and each slider 24 extend from the side away from the guide groove 26, and the extended end is provided with an extension plate 264 extending towards the cavity 21. The end of each extension plate 264 near the cavity 21 is provided with a bevel 2641 that matches the shape of the glass plate 4.

[0030] The fixed template 1 has an embedding groove for the slider 24 and the moving block 25 to be embedded at the corresponding positions. This provides clearance space for the slider 24 and the moving block 25 when the mold is closed. At this time, the extension plate 264 is also located in the embedding groove.

[0031] like Figure 2 and Figure 4The moving block 25 and each slider 24 are specifically connected to the corresponding guide groove 26. Each guide groove 26 has an installation groove 265 on its opposite groove wall. Each installation groove 265 is detachably connected to a clamping block 266 via screws. The moving block 25 and each slider 24 slide between two clamping blocks 266. Furthermore, each moving block 25 and each slider 24 is provided with a horizontal plate 267, which is limited by the clamping block 266 between the clamping block 266 and the bottom of the guide groove 26. The horizontal plate 267 and the moving block 25 or slider 24 are connected by these horizontal plates. Block 24 is manufactured as a single piece. The horizontal plate 267 moves back and forth in the guide groove 26 along with the slider 24 or the moving block 25. When it is necessary to disassemble and replace the moving block 25 or the slider 24, simply unscrew the screws from the clamping block 266. At this time, the clamping block 266 is removed from the mounting groove 265, releasing the restriction on the horizontal plate 267. This makes it easier for the slider 24 and the moving block 25 to move out of the guide groove 26. The design of the T-shaped groove 262 makes it easy to disconnect the connection with the second oil cylinder 261 when the slider 24 and the moving block 25 move out of the guide groove 26.

[0032] The surfaces of slider 24, moving block 25, and guide groove 26 are all covered with a nitrided layer with a hardness of HRC50~55, which improves wear resistance and surface hardness and ensures long-term accuracy. The clamping block 266 is also made of high-strength steel and nitrided, so that while restricting the up and down movement of slider 24 and moving block 25, it can also resist wear itself, reducing the loosening or jumping of slider 24 and moving block 25 due to excessive wear of clamping block 266, further ensuring the long-term stability and positioning repeatability of the positioning component. In addition, lubrication measures are added (such as setting an oil groove in guide groove 26 and using grease, etc.) to facilitate sliding. These are existing lubrication measures and will not be described in detail here.

[0033] like Figure 5 The template 1 has a cavity 11 for inserting a rigid plastic sheet 41. The bottom of the cavity 11 has a positioning groove (not shown in the figure) for the protrusion 42 on the rigid plastic sheet 41 to enter. The structure of the protrusion 42 is as follows: Figure 11 As shown, there are several protrusions 42. Therefore, a positioning block (not shown in the figure) is slidably provided in the fixed template 1 and inserted into the preset holes 421 of two or three of the protrusions 42. A groove is provided on the fixed template 1 for the positioning block to slide. A fourth hydraulic cylinder (not shown in the figure) is provided outside the fixed template 1 to push the positioning block to move back and forth. Specifically, the positioning block is L-shaped, with one end slidably provided in the groove of the fixed template 1 and the other end provided with a conical insertion block. The piston rod of the fourth hydraulic cylinder is directly connected to the positioning block and drives the positioning block to move along a direction perpendicular to the opening and closing direction of the mold to insert or withdraw from the preset holes 421 on the protrusions 42.

[0034] When the moving mold plate 2 and the fixed mold plate 1 are closed, there is a gap 2 between the edges of the glass plate 4 and the rigid plastic plate 41 and the cavity walls of cavity one 21 and cavity two 11, and there is a gap 1 between the glass plate 4 and the rigid plastic plate 41 for the flow of molten plastic. The fixed mold plate 1 is provided with several branch channels 12 distributed at intervals along the length of cavity two 11, and one end of each branch channel 12 extends into cavity two 11. The rigid plastic plate 41 is provided with holes for the molten material in each branch channel 12 to flow into the gap 1. Specifically, the fixed mold plate 1 has independent annular openings on the bottom of cavity two 11 and around the periphery corresponding to the outlet of each branch channel 12. Each annular sealing groove is embedded with a high-temperature resistant silicone sealing strip. After mold closing, each sealing strip is pressed against the back of the rigid plastic plate 41 (i.e., the side of the rigid plastic plate 41 facing the bottom of cavity 11) to form a local seal, preventing molten plastic from overflowing outwards along the gap between the back of the rigid plastic plate 41 and the bottom of cavity 11 after entering the hole on the rigid plastic plate 41 from the runner 12. The hole on the rigid plastic plate 41 is a stepped hole (not shown in the figure), in which the small hole faces the glass plate 4 and the large hole connects with the runner 12 so that the molten plastic can smoothly enter the gap between the glass plate 4 and the rigid plastic plate 41.

[0035] After the mold is closed, the molten plastic enters the main runner (not shown in the figure) on the fixed platen 1 from the injection molding machine nozzle. The main runner is connected to each branch runner 12. The molten plastic is directly transported through the branch runner 12 to the large hole end of the hole on the rigid plastic plate 41, and then enters the gap between the glass plate 4 and the rigid plastic plate 41 through the hole. At the same time, some of the molten plastic flows along the gap between the edge of the glass plate 4 and the rigid plastic plate 41 and the cavity wall of cavity 1 21 and cavity 2 11, wrapping the edge of the glass plate 4 and the rigid plastic plate 41.

[0036] like Figure 7-9 The adaptive adjustment component includes: U-shaped mounting plate 31 is fixedly installed at the end of the robot arm, and a fixing plate 32 is provided between its two opposite walls; The adaptive plate 34 is set parallel to the fixed plate 32. At this time, the number of suction cups 3 is set according to the requirements, with a minimum of two. Each suction cup 3 is fixed on the side of the adaptive plate 34 away from the fixed plate 32. The rotating column 33 has one end fixed to the side of the adaptive plate 34 facing the fixed plate 32 and coaxially distributed with the suction cup 3. The other end of the rotating column 33 is coaxially fixed with a disk 331, the diameter of which is larger than the diameter of the rotating column 33. The fixed plate 32 is provided with a coaxially connected movable groove 332 and a movable groove 333. The movable groove 332 is in clearance fit with the rotating column 33, and the diameter of the movable groove 332 is larger than the diameter of the rotating column 33. The movable groove 333 is in clearance fit with the disc 331, and the diameter of the movable groove 333 is larger than the diameter of the disc 331. A limiting element is used to selectively lock or release the movement of the adaptive plate 34 relative to the fixed plate 32.

[0037] like Figure 7-9 The limiting component includes: a conical hole 341 opened on the adaptive plate 34, a cone 342 matching the conical hole 341, and a third driving component fixedly mounted on the fixed plate 32. The third driving component is used to drive the cone 342 to move into the conical hole 341 to lock the adaptive plate 34, or to move out of the conical hole 341 to release the adaptive plate 34. The third driving component is a third hydraulic cylinder 343 fixed on the fixed plate 32. The third hydraulic cylinder 343 is located in the U-shaped space of the mounting plate 31. The piston rod of the third hydraulic cylinder 343 passes through the fixed plate 32 and is fixedly connected to one end of the cone 342. For example, the single-sided gap between the first moving groove 332 and the rotating column 33 is 1.5 mm, the single-sided gap between the second moving groove 333 and the disc 331 is 1.5 mm, and the taper ratio of the conical hole 341 to the cone 342 is 1:15. The above floating gaps allow the adaptive plate 34 to obtain sufficient translational and deflection degrees of freedom during the positioning process.

[0038] like Figure 7-9 The limiting component is configured such that: before the positioning component positions the glass plate 4, the third driving component drives the cone 342 to move out of the cone hole 341, so that the adaptive plate 34 is in a floating state; after the positioning component completes the positioning of the glass plate 4 and the suction column 221 adsorbs and fixes the glass plate 4, the suction cup 3 releases the adsorption of the glass plate 4. like Figure 7-9 As the robotic arm moves the suction cup 3 away from the glass plate 4, the third driving component drives the cone 342 to move into the cone hole 341, locking the adaptive plate 34 and resetting it to the initial position, so that the adaptive adjustment component puts the suction cup 3 in a state ready to pick up the next glass plate 4.

[0039] When the cone 342 is pushed into the cone hole 341, regardless of how much the adaptive plate 34 was previously tilted, it will be forced back to a certain zero position. When the robot arm withdraws with the suction cup 3, the adaptive plate 34 is reset and locked. This does not occupy the production cycle time, and ensures that the reset action is performed when there is no glass plate 4 under load. The reset is actively and automatically achieved by the third drive component, and it overlaps with the withdrawal action without increasing the cycle time. This solves the dual contradictory requirements: the same mechanism must be "soft" (floating) when positioning and "rigid" (locking) when moving in / out.

[0040] like Figure 1-5The first driving component is a first hydraulic cylinder 27 mounted on the moving template 2 and located outside the moving template 2. The first hydraulic cylinder 27 is fixed to the bottom of the insertion groove 231. There can be two first hydraulic cylinders 27, which are distributed at intervals along the length of the cavity 21. The piston rod of the first hydraulic cylinder 27 passes into the moving template 2 and is fixed to one side of the moving core plate 22. Several guide posts 28 are fixedly provided at the bottom of the cavity 21. The moving core plate 22 is provided with sliding grooves for each guide post 28 to slide. When the moving core plate 22 moves back and forth in the cavity 21, each guide post 28 moves in the sliding groove, thereby guiding the movement of the moving core plate 22.

[0041] like Figure 1-5 The moving core plate 22 is provided with several limiting rods 29. The lower end of each limiting rod 29 is screwed into the bottom of the cavity 21. The upper end of each limiting rod 29 is coaxially fixedly connected to a limiting post 291 with a diameter larger than that of the limiting rod 29. The end of the limiting post 291 facing away from the limiting rod 29 has a cross-shaped groove to facilitate screwing one end of the limiting rod 29 into the cavity 21. The moving core plate 22 is provided with through holes 292 and 293 for the limiting post 291 and the limiting rod 29 to pass through. When the lower end of the limiting rod 29 is screwed into the bottom of the cavity 21, the end of the limiting post 291 and the through hole are connected. There is a gap between the bottom of the hole in hole 292. When the moving core plate 22 moves out of the cavity 21, the gap between the end of the limiting post 291 and the bottom of the hole in hole 292 becomes smaller and smaller. When the moving core plate 22 moves out of the cavity 21 to the external receiving position, the end of the limiting post 291 abuts against the bottom of the hole in hole 292, indicating that the moving core plate 22 has moved out of the cavity 21 to the external receiving position. At this time, the first hydraulic cylinder 27 stops working. Specifically, a rubber buffer pad is installed at the end of the limiting post 291. When it contacts the bottom of the hole in hole 292, the buffer pad is compressed. The pressure sensor of the first hydraulic cylinder 27 detects the pressure rise and stops driving.

[0042] By moving the moving core plate 22 to the external receiving position, the placement and positioning of the glass plate 4 can be carried out entirely in the open space outside the mold, avoiding rigid collision between the glass edge and the moving template 2 caused by the narrow space and structural interference inside the cavity. The positioning component performs push positioning when the glass plate 4 is not completely fixed. At this time, the glass plate 4 can move slightly relative to the end of the robot arm, which can ensure positioning accuracy and avoid stress concentration due to rigid clamping. After positioning, it is then attracted and locked by the suction column 221 to ensure position accuracy in the subsequent process of moving into the cavity 21. The entire process of automatic material feeding by the robotic arm, automatic pushing of the positioning components, automatic adsorption by the suction column 221, and automatic transfer of the moving core plate 22 requires no manual intervention. The placement cycle of a single glass plate 4 is shortened, which improves efficiency compared to manual placement and reduces quality fluctuations caused by differences in operator skills. This working process is particularly suitable for long strip-shaped thin glass panels 4 with a length exceeding 800 mm. It solves the problem of automatic and precise positioning of such fragile parts in overmolding injection molding, and provides a reliable guarantee for the mass production of high-end interior parts such as electric vehicle central control screens and through-type glass trim panels.

[0043] The crack-resistant effect is achieved through the synergistic effect of the following structures: The moving core plate 22 is moved outward, so that the placement and positioning of the glass plate 4 can be carried out entirely in the open space outside the mold, which reduces the rigid collision between the glass edge and the moving template 2 and the slider 24 caused by the narrow space and structural interference inside the cavity. The adaptive adjustment component floating positioning allows the glass plate 4 to undergo slight translation or deflection relative to the end of the robot arm when the positioning component pushes the glass plate 4, reducing stress concentration caused by rigid pushing and reducing the risk of the glass being crushed during the positioning process. The suction columns 221 are distributed at multiple points and arranged at intervals along the length of the glass plate 4. The two outermost suction columns 221 are close to the two ends of the length of the glass plate 4, so that the adsorption force is evenly distributed throughout the glass plate 4, reducing the bending deformation of the glass plate 4 or excessive local stress caused by single-point adsorption or unreasonable distribution of adsorption points. During injection molding, the molten plastic first enters the holes on the rigid plastic plate 41 through the flow channel 12, and then flows out from the holes into the gap between the glass plate 4 and the rigid plastic plate 41. This flow path allows the molten plastic to first contact the rigid plastic plate 41 and fill the gap, thereby reducing the direct impact intensity of the molten plastic flow on the edge of the glass plate 4. At the same time, the porous distribution allows the plastic to enter the gap from multiple positions at the same time, dispersing the single-point impact force and further reducing the flow stress borne by the glass plate 4.

[0044] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A rubber-coating injection mold for a crack-resistant screen, comprising a fixed mold plate (1) that opens and closes from left to right and a movable mold plate (2), characterized in that, The movable template (2) has a cavity (21) on the side facing the fixed template (1). A movable core plate (22) is movably connected in the cavity (21). The movable core plate (22) is provided with several suction columns (221), and the movable core plate (22) can be moved out of the cavity (21) to an external receiving position. It also includes a robotic arm, the end of which is provided with a suction cup (3) and an adaptive adjustment component. The robotic arm uses the suction cup (3) to adsorb and transport the glass plate (4) to the moving core plate (22) located at the external receiving position. The moving template (2) is provided with a movable positioning component. When the robot transports the glass plate (4) to the moving core plate (22), the positioning component moves toward the glass plate (4) and pushes and positions the edge of the glass plate (4). During the positioning process, the adaptive adjustment component allows the glass plate (4) to move relative to the robot. After the positioning component completes the positioning of the glass plate (4), each of the suction columns (221) adsorbs and fixes the glass plate (4) on the moving core plate (22), the positioning component retracts, and the moving core plate (22) drives the glass plate (4) to move into the cavity one (21); The moving template (2) is provided with a first driving member for driving the moving core plate (22) to move out of or into the cavity (21).

2. The overmolding injection mold for a crack-resistant screen as described in claim 1, characterized in that, The positioning component includes multiple sliders (24) distributed on both sides of the length direction of the cavity (21) and a moving block (25) located below the cavity (21). The moving template (2) is provided with a second driving member for driving the moving block (25) and each slider (24) to move.

3. The overmolding injection mold for a crack-resistant screen as described in claim 1, characterized in that, The fixed template (1) is provided with a cavity two (11) for the rigid plastic plate (41) to be placed in. The bottom of the cavity two (11) is provided with a positioning groove for the protrusion (42) on the rigid plastic plate (41) to enter. A positioning block is slidably provided in the fixed template (1) to be inserted into the preset hole (421) of the protrusion (42). When the moving template (2) and the fixed template (1) are closed, there is a gap 2 between the edge of the glass plate (4) and the rigid plastic plate (41) and the cavity wall of cavity one (21) and cavity two (11), and there is a gap 1 between the glass plate (4) and the rigid plastic plate (41) for the flow of molten plastic. The fixed template (1) is provided with a number of branch channels (12) distributed at intervals along the length direction of cavity two (11), and one end of each branch channel (12) extends to cavity two (11). The rigid plastic plate (41) is provided with holes for the molten material in each branch channel (12) to flow into the gap 1.

4. The overmolding injection mold for a crack-resistant screen as described in claim 1, characterized in that, The adaptive adjustment element includes: A U-shaped mounting plate (31) is fixedly installed at the end of the robot arm, and a fixing plate (32) is provided between its two opposite walls. An adaptive plate (34) is arranged parallel to the fixed plate (32), and the suction cup (3) is fixed to the side of the adaptive plate (34) away from the fixed plate (32); A rotating column (33) has one end fixed to the side of the adaptive plate (34) facing the fixed plate (32) and coaxially distributed with the suction cup (3). The other end of the rotating column (33) is coaxially fixed with a disk (331), the diameter of which is larger than the diameter of the rotating column (33). The fixed plate (32) is provided with a coaxially connected moving groove one (332) and a moving groove two (333). The moving groove one (332) is in clearance fit with the rotating column (33), and the moving groove two (333) is in clearance fit with the disc (331). A limiting element is used to selectively lock or release the movement of the adaptive plate (34) relative to the fixed plate (32).

5. The overmolding injection mold for a crack-resistant screen as described in claim 4, characterized in that, The limiting component includes: A conical hole (341) is formed on the adaptive plate (34); A cone (342) that matches the conical hole (341); And a third driving member fixedly mounted on the fixed plate (32), the third driving member being used to drive the cone (342) to move into the cone hole (341) to lock the adaptive plate (34), or to move out of the cone hole (341) to release the adaptive plate (34).

6. The overmolding injection mold for a crack-resistant screen as described in claim 5, characterized in that, The limiting member is configured such that: before the positioning component positions the glass plate (4), the third driving member drives the cone (342) to move out of the cone hole (341), so that the adaptive plate (34) is in a floating state; after the positioning component completes the positioning of the glass plate (4) and the suction column (221) adsorbs and fixes the glass plate (4), the suction cup (3) releases the adsorption of the glass plate (4); During the process of the robotic arm moving the suction cup (3) away from the glass plate (4), the third driving member drives the cone (342) to move into the cone hole (341), locks the adaptive plate (34) and resets it to the initial position, so that the adaptive adjustment member is in a state ready to pick up the next glass plate (4).

7. The overmolding injection mold for a crack-resistant screen as described in claim 2, characterized in that, The moving template (2) has guide grooves (26) on the side facing the fixed template (1) corresponding to the slider (24) and the moving block (25) for the slider (24) and the moving block (25) to move away from or towards the cavity (21). The slider (24) and the moving block (25) are detachably connected in each guide groove (26), and one end of each guide groove (26) extends out of the edge of the moving template (2). The second driving member is a second hydraulic cylinder (261) detachably connected to the slider (24) and the moving block (25).

8. The overmolding injection mold for a crack-resistant screen as described in claim 7, characterized in that, Each of the second hydraulic cylinders (261) is located outside the moving template (2). Each of the sliders (24) and the moving block (25) has a T-shaped groove (262) on the side facing the second hydraulic cylinder (261). The T-shaped groove (262) passes through the opposite sides of the slider (24) or the moving block (25). A cylinder (263) is coaxially fixed on the piston rod of the second hydraulic cylinder (261). An annular groove (2631) is opened on the outer wall of the cylinder (263). The annular groove (2631) allows one end of the cylinder (263) to enter the T-shaped groove (262), and the other end is located on the outer wall of the slider (24) and the moving block (25).

9. The overmolding injection mold for a crack-resistant screen as described in claim 8, characterized in that, The first driving component is a first oil cylinder (27) set on the moving template (2) and located outside the moving template (2). The piston rod of the first oil cylinder (27) is inserted into the moving template (2) and fixed to one side of the moving core plate (22). A number of guide columns (28) are fixedly provided at the bottom of the cavity (21). The moving core plate (22) is provided with sliding grooves for each guide column (28) to slide.

10. The overmolding injection mold for a crack-resistant screen as described in claim 9, characterized in that, The moving core plate (22) is provided with several limiting rods (29). The lower end of each limiting rod (29) is screwed into the bottom of the cavity of cavity one (21). The upper end of each limiting rod (29) is coaxially fixedly connected with a limiting post (291) with a diameter larger than that of the limiting rod (29). The moving core plate (22) is provided with a through hole one (292) and a through hole two (293) for the limiting post (291) and the limiting rod (29) to pass through. When the lower end of the limiting rod (29) is screwed into the bottom of the cavity of cavity one (21), there is a gap between the end of the limiting post (291) and the bottom of the through hole one (292).

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