Left and right front door sill inner panel mold

Abstract

This application relates to the field of molds, and in particular to a mold for left and right front door sill interior panels, including a fixed mold, a moving mold, and a demolding assembly. The moving mold is slidably connected to the surface of the fixed mold. The demolding assembly includes a sliding seat, a fixed seat, multiple core-pulling components, and multiple force-applying blocks. A sliding cavity is formed on the surface of the fixed mold, the fixed seat is connected to the bottom wall of the sliding cavity, and a moving cavity is formed on the surface of the sliding seat. The ends of the multiple core-pulling components are spaced apart and connected to the surface of the fixed seat, and multiple moving grooves are spaced apart on the inner wall of the moving cavity. In this application, the sliding seat, fixed seat, core-pulling components, and force-applying blocks are arranged such that the end faces of the multiple force-applying blocks always abut against the product surface to form support, thereby setting multiple force application points on the product surface. This ensures that the demolding force distribution on the front door sill interior panel is uniform, avoiding scratches, indentations, or deformation on the front door interior panel surface due to excessive local force, thus improving the production quality of the front door sill interior panel.

Description

Technical Field

[0001] This application relates to the field of molds, and in particular to a mold for left and right front door sill interior panels. Background Technology

[0002] The left and right front door sill trim panels are important decorative and functional components in car interiors. They are usually located in the door sill area, serving to protect the body sheet metal and enhance the aesthetics of the interior and passenger comfort.

[0003] The left and right front sill interior panels are formed by injecting adhesive into the mold cavity and cooling it. When the front sill interior panel is demolded, the core-pulling drive push plate abuts against the front sill interior panel surface and separates it from the cavity. The contact area between the push plate and the front sill interior panel surface is relatively large. If the flatness of the front sill interior panel surface or the distribution of demolding force is uneven, it is easy to cause excessive local force on the front sill interior panel surface by the push plate, resulting in scratches, indentations or deformation of the front sill interior panel, thereby reducing the production quality of the front sill interior panel. Summary of the Invention

[0004] In order to improve the production quality of the front door sill interior panels, this application provides a mold for the left and right front door sill interior panels.

[0005] This application provides a mold for left and right front door sill interior panels, which adopts the following technical solution:

[0006] A mold for left and right front door sill interior panels includes a fixed mold, a moving mold, and a demolding assembly. The moving mold is slidably connected to the surface of the fixed mold. When the moving mold and the fixed mold are closed, they form a cavity for injection molding. The demolding assembly includes a sliding seat, a fixed seat, multiple core pullers, and multiple force application blocks. The surface of the fixed mold facing the moving mold has a sliding cavity for the sliding seat to slide in. The sliding cavity communicates with the cavity. The end face of the sliding seat facing the cavity can abut against the product surface. The fixed seat is connected to the bottom wall of the sliding cavity. The surface of the sliding seat has a moving cavity for the fixed seat to slide in. The ends of the multiple core pullers are spaced apart and connected to the fixed seat. The fixed seat faces the cavity surface. The inner wall of the movable cavity is provided with multiple movable grooves for core pulling to pass through. The movable grooves are connected to the cavity. The end of the core pull passes through the movable groove and is connected to the surface of the force application block. The inner wall of the movable groove facing the cavity is provided with a groove for the force application block to be embedded. The end face of the force application block facing the cavity can abut against the product surface. When the sliding seat slides along the inner wall of the sliding cavity in a direction away from the cavity, it drives the core pull to slide along the inner wall of the movable groove. The core pull disengages from the groove and abuts against the product surface to form support. The abutment effect between the end face of the sliding seat and the product surface disappears.

[0007] By adopting the above technical solution, when the moving mold and the fixed mold are closed to form a cavity, the sliding seat slides along the inner wall of the sliding cavity towards the cavity, and the sliding seat is flush with the inner wall of the cavity. One end of the force-applying block is embedded in the groove, and the other end of the force-applying block is flush with the surface of the sliding seat. The rubber material cools in the cavity to form the product. The surfaces of the sliding seat and the force-applying block are both in contact with the product surface. When the product is demolded, the moving mold slides away from the fixed mold, and at the same time, the sliding seat slides along the inner wall of the sliding cavity away from the cavity. The fixed seat is connected to the bottom wall of the sliding seat and slides along the inner wall of the moving cavity, driving the core puller to slide along the inner wall of the sliding groove. The surface of the sliding seat detaches from the product surface. The end faces of multiple force-applying blocks are always in contact with the product surface to form support, realizing the setting of multiple force-applying points on the product surface. This ensures that the demolding force distribution of the front door interior panel is uniform, avoiding scratches, indentations or deformation of the front door interior panel due to excessive local force, thereby improving the production quality of the front door interior panel.

[0008] Optionally, the core-pulling end is rotatably connected to the surface of the fixed base.

[0009] By adopting the above technical solution, when the position of the moving groove opening changes, the core puller is driven to rotate on the surface of the fixed seat, so that the end of the core puller faces the moving groove opening, reducing the wear between the core puller surface and the inner wall of the moving groove. At the same time, the adjustment of the force application point position on the product surface can be achieved according to the rotation angle of the core puller on the fixed seat, further ensuring that the product can be evenly stressed when demolding, thereby improving the production quality of the front door sill interior panel.

[0010] Optionally, the fixed seat is slidably connected to the inner wall of the sliding cavity. The sliding direction of the fixed seat and the sliding seat are parallel to each other. A limiting component is connected between the fixed seat and the sliding seat. The limiting component includes a limiting block, a positioning block, and an elastic element. The end of the limiting block is connected to the surface of the fixed seat. The inner wall of the sliding cavity has a limiting cavity for the limiting block to slide. The limiting cavity penetrates the surface of the sliding seat and communicates with the sliding cavity. One end of the positioning block is connected to the inner wall of the sliding cavity, and the other end of the positioning block is embedded in the limiting cavity. The positioning block is located on the side of the limiting block closer to the cavity. One end of the elastic element in the elastic direction is connected to the inner wall of the sliding cavity, and the other end of the elastic element in the elastic direction is connected to the surface of the fixed seat. The elastic element has an elastic force that drives the fixed seat to slide towards the positioning block. The end face of the positioning block abuts against the end face of the limiting block to form a limit, and the end face of the force-applying block tends to be flush with the surface of the sliding seat.

[0011] By adopting the above technical solution, the elastic element drives the fixed seat to slide along the inner wall of the sliding cavity towards the positioning block. The end face of the positioning block abuts against the end face of the limiting block to form a limit, and the end face of the force-applying block is flush with the surface of the sliding seat, thereby realizing the directional limit of the fixed seat in the sliding cavity, making it less likely for the fixed seat to shift on the inner wall of the sliding cavity, thus improving the stability of the force-applying block in supporting the interior panel of the front door sill.

[0012] Optionally, the limiting assembly further includes a guide rod and a power cylinder. The power cylinder is connected to the inner wall of the sliding cavity away from the mold cavity. The piston rod axis of the power cylinder and the sliding direction of the sliding seat are parallel to each other. The end of the piston rod of the power cylinder is connected to the surface of the sliding seat. The power cylinder drives the sliding seat to slide on the inner wall of the sliding cavity. The guide rod is connected to the inner wall of the moving cavity. The surface of the fixed seat is provided with a guide hole for the guide rod to pass through.

[0013] By adopting the above technical solution, the power cylinder drives the sliding seat to slide on the inner wall of the sliding cavity, eliminating the need for manual control of the sliding seat by the operator, thereby improving the automation of the production of the front door sill interior panel; at the same time, the guide rod slides on the inner wall of the guide hole, making it less likely for the sliding seat to deviate on the inner wall of the sliding cavity, thereby improving the stability of the sliding seat.

[0014] Optionally, a heat dissipation assembly is connected between the sliding seat and the fixed seat. The heat dissipation assembly includes a heat dissipation piston, a heat dissipation screw, a connecting rope, and an elastic element two. The fixed seat has a heat dissipation cavity for the heat dissipation screw to rotate. The heat dissipation piston is threaded to the outer circumferential surface of the heat dissipation screw. The heat dissipation piston slides along the axis of the heat dissipation screw on the inner wall of the heat dissipation cavity. The surface of the fixed seat has an air vent that connects the heat dissipation cavity and the moving cavity. The inner wall of the heat dissipation cavity has a connecting cavity for the connecting rope to pass through. The connecting cavity passes through the surface of the fixed seat and connects to the moving cavity. One end of the connecting rope is wrapped around the outer circumferential surface of the heat dissipation screw, and the other end of the connecting rope passes through the connecting cavity and is connected to the inner wall of the moving cavity. One end of the elastic element two in the elastic direction is connected to the inner wall of the heat dissipation cavity, and the other end of the elastic element two in the elastic direction is connected to the outer circumferential surface of the heat dissipation screw. The elastic element two has the elastic force to drive the heat dissipation screw to rotate, and the connecting rope is wrapped around the outer circumferential surface of the heat dissipation screw and tends to be in a taut state.

[0015] By adopting the above technical solution, one end of the connecting rope is wrapped around the outer circumference of the heat dissipation screw, and the other end of the connecting rope passes through the connecting cavity and is connected to the inner wall of the moving cavity. When the sliding seat slides along the inner wall of the sliding cavity towards the cavity, the distance between the inner wall of the moving cavity and the surface of the fixed seat increases, the connecting rope is pulled out, driving the heat dissipation screw to rotate, and pushing the heat dissipation piston to slide along the axis of the heat dissipation screw. When the sliding seat slides along the inner wall of the sliding cavity away from the cavity, the distance between the inner wall of the moving cavity and the surface of the fixed seat decreases, the elastic force of the elastic element drives the heat dissipation screw to rotate in the opposite direction, and the connecting rope is wrapped around the outer circumference of the heat dissipation screw. The air in the heat dissipation cavity and the air in the moving cavity flow through the air outlet, increasing the contact area between the fixed seat and the air, so that the surface of the fixed seat can fully contact the air and exchange heat, thereby improving the cooling efficiency of the fixed seat, making the fixed seat less likely to deform under high temperature for a long time, thereby improving the stability of the fixed seat in limiting the position on the inner wall of the sliding cavity.

[0016] Optionally, the heat dissipation assembly further includes a one-way valve and a one-way valve. The one-way valve is connected to the inner wall of the air outlet and allows air from the moving cavity to enter the heat dissipation cavity through the air outlet. A heat dissipation channel is formed on the inner wall of the heat dissipation cavity. The one-way valve is connected to the inner wall of the heat dissipation channel and allows air from the heat dissipation cavity to enter the heat dissipation channel. The heat dissipation channel penetrates the surface of the fixed base in a direction close to one of the core pullers. An air inlet channel is formed on the surface of the core puller facing the heat dissipation channel. The air inlet channel penetrates the surface of the core puller in a direction close to the force application block. An air outlet channel is formed on the surface of the force application block. The air outlet channel is connected to the air inlet channel. The inclination height of the air outlet channel increases as the distance to the core puller decreases.

[0017] By adopting the above technical solution, when the cooling piston slides away from the air outlet along the cooling screw axis, the air pressure in the cooling chamber decreases, and the air in the moving chamber enters the cooling chamber through the air outlet and one-way valve one. When the cooling piston slides closer to the air outlet along the cooling screw axis, the air pressure in the cooling chamber increases, and the air in the cooling chamber enters the cooling flow channel through one-way valve two. The inlet flow channel connects the cooling flow channel and the outlet flow channel. The air in the cooling flow channel impacts the product surface through the inlet flow channel and the outlet flow channel. The product surface fully contacts the air and exchanges heat, thereby improving the cooling efficiency of the product and thus improving the material feeding efficiency of the product. Moreover, the inclination height of the outlet flow channel increases as the distance of the core pulling decreases, so that the air discharged from the outlet flow channel can concentrate and impact the product surface, further improving the heat dissipation efficiency of the product.

[0018] Optionally, a fixing assembly is connected between the core puller and the force application block. The fixing assembly includes a fixing rod. The end face of the force application block has a fixing cavity for the core puller end to be inserted into. The fixing cavity is connected to the air outlet channel. The surface of the force application block has a fixing hole one for the fixing rod to be inserted into. The fixing hole one is connected to the fixing cavity. The surface of the core puller has a fixing hole two for the fixing rod to pass through. The fixing hole two is connected to the air inlet channel. When the core puller end is inserted into the fixing cavity, the fixing hole one is connected to the fixing hole two. The end of the fixing rod passes through the fixing hole one and the fixing hole two in sequence. The inner wall of the fixing hole one abuts against the outer circumferential surface of the fixing rod to form a limit. The surface of the fixing rod has a clearance hole. The clearance hole passes through both sides of the fixing rod and is connected to the air inlet channel.

[0019] By adopting the above technical solution, when the end face of the force-applying block is worn and needs to be replaced, the fixing rod is driven to disengage from fixing hole one and fixing hole two, thereby separating the force-applying block from the core puller. The new force-applying block is then fitted onto the end of the core puller. Fixing hole one connects to fixing hole two, and the end of the fixing rod passes through fixing hole one and fixing hole two. The inner wall of fixing hole one abuts against the outer circumferential surface of the fixing rod to form a limit, thereby extending the service life of the mold for the interior trim panels of the left and right front door sills.

[0020] Optionally, the fixing assembly further includes at least two elastic elements three and at least two fixing plates. Both ends of the fixing hole one in the axial direction are provided with slides for the fixing plates to slide. One end of the elastic element three in the elastic direction is connected to the inner wall of the slide, and the other end of the elastic element three in the elastic direction is connected to the surface of the fixing plate. The elastic element three has the tendency to elastically drive the fixing plate to slide towards the fixing hole one and close the fixing hole one. Both ends of the fixing rod in the axial direction are provided with grooves for the fixing plates to pass through. When the end of the fixing rod passes through the fixing hole one and the fixing hole two in sequence, and the groove connects to the slide, the clearance hole connects to the air intake channel.

[0021] By adopting the above technical solution, when the core puller and the force-applying block are installed, the fixing plate is driven to slide away from the fixing hole one, overcoming the three elastic forces of the elastic element. The sealing effect of the fixing plate on the fixing hole one disappears. The end of the fixing rod passes through the fixing hole one and the fixing hole two in sequence. The direction of the fixing rod is adjusted, the slide groove connects to the slide channel, and the clearance hole connects to the air intake channel. The fixing plate is released, and the three elastic forces of the elastic element drive the fixing plate to slide closer to the fixing hole one. The fixing plate passes through the slide groove and seals the fixing hole one. The two fixing plates abut against the two ends of the fixing rod axis to form a limit, making it difficult for the fixing rod to detach from the fixing hole one, thereby improving the connection stability between the core puller and the force-applying block.

[0022] Optionally, a sealing assembly is connected between the force-applying block and the core-pulling mechanism. The sealing assembly includes a sealing ring and multiple elastic blocks. The multiple elastic blocks are spaced apart and connected to the inner wall of the air inlet channel facing the air outlet channel. The multiple elastic blocks are spliced ​​together to form a circular plate and seal the air inlet channel. The sealing ring is connected to the inner wall of the fixed cavity facing the air inlet channel. The end of the sealing ring can be embedded in the air inlet channel and squeeze the elastic block. The elastic block is deformed under pressure, and the sealing effect of the elastic block on the air inlet channel disappears.

[0023] By adopting the above technical solution, multiple elastic blocks are spliced ​​together to form a circular plate and seal the air intake channel, making it difficult for external impurities to enter the heat dissipation cavity from the air intake channel, thereby improving the sealing stability of the air intake channel; when the core-pulling end is embedded in the fixed cavity, the sealing ring end is embedded in the air intake channel and squeezes the elastic block, the elastic block is deformed under pressure, the sealing effect of the elastic block on the air intake channel disappears, and at the same time the inner wall of the air intake channel and the outer ring wall of the sealing ring clamp the two sides of the elastic block to form a seal, making it difficult for air in the air intake channel to enter the fixed cavity, thereby improving the stability of air in the air intake channel entering the air outlet channel.

[0024] Optionally, the sealing assembly further includes a thermal expansion and contraction ring. The inner wall of the air inlet channel near the air outlet channel is provided with an installation groove for the thermal expansion and contraction ring to be embedded. The installation groove is located on the side of the elastic block away from the force-applying block. When the inner wall of the air inlet channel and the outer wall of the sealing ring clamp the two sides of the elastic block to form a seal, the inner wall of the thermal expansion and contraction ring abuts against the surface of the elastic block to form a seal.

[0025] By adopting the above technical solution, when the end of the sealing ring is embedded in the air intake channel, and the outer ring wall of the sealing ring and the inner wall of the air intake channel clamp the two sides of the elastic block to form a seal, the inner ring wall of the thermal expansion and contraction ring clamps the surface of the elastic block to form a seal. When the product transfers some of its heat energy to the force-applying block, and the force-applying block heats up and transfers its heat energy to the thermal expansion and contraction ring, the thermal expansion and contraction ring heats up and expands. The inner ring wall of the thermal expansion and contraction ring presses against the surface of the elastic block to form a seal, further improving the sealing stability between the force-applying block and the core puller.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The setting of sliding seat, fixed seat, core pulling and force application block, with the end face of multiple force application blocks always abutting against the product surface to form support, realizes the setting of multiple force application points on the product surface, ensures uniform distribution of demolding force on the front door interior panel, avoids scratches, indentations or deformation on the front door interior panel due to excessive local force, thereby improving the production quality of the front door interior panel;

[0028] 2. The setting of the limiting block, positioning block and elastic element realizes the directional limiting of the fixed seat in the sliding cavity, so that the fixed seat is not easy to shift on the inner wall of the sliding cavity, thereby improving the stability of the force application block supporting the front door interior panel.

[0029] 3. The guide rod and power cylinder are designed so that the guide rod slides on the inner wall of the guide hole, making it less likely for the sliding seat to deviate from the inner wall of the sliding cavity, thereby improving the stability of the sliding seat. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application.

[0031] Figure 2 This is a cross-sectional view of an embodiment of this application, mainly showing the cavity.

[0032] Figure 3 This is a cross-sectional view of the sliding seat and the fixed seat in the embodiments of this application.

[0033] Figure 4 This is a schematic diagram of the overall structure of the demolding component in the embodiments of this application.

[0034] Figure 5 This is a partial cross-sectional view of an embodiment of this application, mainly showing the heat dissipation components.

[0035] Figure 6 yes Figure 5 The enlarged view at point A in the middle mainly shows the sealing components.

[0036] Explanation of reference numerals in the attached drawings: 1. Fixed mold; 11. Cavity; 12. Sliding cavity; 2. Moving mold; 21. Injection port; 3. Demolding assembly; 31. Sliding seat; 311. Moving cavity; 312. Moving groove; 313. Insert groove; 314. Limiting cavity; 32. Fixed seat; 321. Guide hole; 322. Heat dissipation cavity; 3221. Heat dissipation section; 323. Connecting cavity; 324. Vent hole; 325. Air outlet; 326. Heat dissipation flow channel; 33. Core pulling; 331. Air inlet channel; 332. Fixing hole two; 333. Mounting groove; 34. Force application block; 341. Air outlet channel; 342. Fixed cavity; 343. Fixed hole one; 344. Slide rail; 4. Limiting assembly; 41. Limiting block; 42. Positioning block; 43. Elastic element one; 44. Guide rod; 45. Power cylinder; 5. Heat dissipation assembly; 51. Heat dissipation piston; 52. Heat dissipation screw; 53. Connecting rope; 54. Elastic element two; 55. One-way valve one; 56. One-way valve two; 6. Fixing assembly; 61. Fixing rod; 611. Clearance hole; 612. Slide groove; 62. Elastic element three; 63. Fixing plate; 7. Sealing assembly; 71. Sealing ring; 72. Thermal expansion and contraction ring; 73. Elastic block. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0038] This application discloses a mold for the left and right front door sill interior panels. (Refer to...) Figure 1 and Figure 2 The mold for the left and right front door interior trim panels includes a fixed mold 1, a moving mold 2, and a demolding assembly 3. The moving mold 2 is slidably connected to the surface of the fixed mold 1. The sliding direction of the moving mold 2 is parallel to the height direction of the fixed mold 1. When the moving mold 2 and the fixed mold 1 are closed, two cavities 11 for injection molding are formed. An injection port 21 is provided on the top surface of the moving mold 2, which connects the two cavities 11. The rubber material enters the cavity 11 through the injection port 21. One cavity 11 is used for cooling the rubber material to form the left front door interior trim panel, and the other cavity 11 is used for cooling the rubber material to form the right front door interior trim panel. In this embodiment, there are two demolding assemblies 3. The two demolding assemblies 3 are connected to the surface of the fixed mold 1 at intervals. The demolding assemblies 3 correspond one-to-one with the cavities 11. The demolding assemblies 3 can form multiple support points for the front door interior trim panels in the cavities 11, so that the surface of the front door interior trim panels is not easily scratched, indented, or deformed due to excessive local force when demolding, thereby improving the production quality of the front door interior trim panels.

[0039] Reference Figure 1 and Figure 3The demolding assembly 3 includes a sliding seat 31, a fixed seat 32, multiple core pullers 33 and multiple force application blocks 34. A sliding cavity 12 is provided on the surface of the moving mold 2 for the sliding seat 31 to slide. The sliding cavity 12 is connected to the cavity 11. When the sliding seat 31 slides along the inner wall of the sliding cavity 12 toward the cavity 11, the end face of the sliding seat 31 is flush with the inner wall of the cavity 11. The end face of the sliding seat 31 can abut against the front door interior panel in the cavity 11 to form support.

[0040] Reference Figure 3 and Figure 4 The fixed seat 32 is connected to the bottom wall of the sliding cavity 12. The bottom of the sliding seat 31 is provided with a movable cavity 311 for the fixed seat 32 to slide. The sliding direction of the fixed seat 32 and the sliding direction of the sliding seat 31 are parallel to each other. The ends of multiple core pullers 33 are connected at intervals to the surface of the fixed seat 32 facing the cavity 11. The movable cavity 311 is provided with multiple movable grooves 312 for the core pullers 33 to pass through near the inner wall of the cavity 11. The movable grooves 312 connect the cavity 11 and the movable cavity 311. The ends of the core pullers 33 pass through the movable grooves 312 and are connected to the surface of the force-applying block 34. The movable grooves 312 are provided with grooves 313 for the force-applying block 34 to be embedded in the inner wall of the cavity 11. When the surface of the sliding seat 31 is flush with the inner wall of the cavity 11, one end of the force-applying block 34 is embedded in the groove 313, and the other end of the force-applying block 34 is flush with the inner wall of the cavity 11 and abuts against the front door interior panel of the cavity 11 to form support.

[0041] Reference Figure 3 and Figure 4 When the rubber material in the cavity 11 cools and forms the front door sill interior panel, the drive sliding seat 31 slides along the inner wall of the sliding cavity 12 away from the cavity 11. The surface of the sliding seat 31 detaches from the front door sill interior panel surface. At the same time, the fixed seat 32 slides on the inner wall of the moving cavity 311, driving the core puller 33 to pass through the moving groove 312. One end of the force application block 34 disengages from the groove 313, while the other end of the force application block 34 always abuts against the front door sill interior panel surface to form support. This achieves the setting of multiple force application points on the front door sill interior panel surface, ensuring that the demolding force distribution of the front door sill interior panel surface is uniform, avoiding scratches, indentations or deformation of the front door interior panel surface due to excessive local force, thereby improving the production quality of the front door sill interior panel.

[0042] Reference Figure 3 and Figure 4In this embodiment, the core puller 33 can be bolted to the surface of the fixed seat 32, or it can be rotatably connected to the surface of the fixed seat 32 via a universal joint. When the orientation of the groove opening of the moving groove 312 changes, the core puller 33 can be rotated to change its orientation, so that the orientation of the core puller 33 matches the groove opening of the moving groove 312, reducing wear between the sliding seat 31 and the core puller 33. At the same time, the force application point of the force application block 34 on the surface of the front sill interior panel can be adjusted according to the flatness of the front sill interior panel, so as to achieve stable demolding of the front sill interior panel and thus improve the production quality of the front sill interior panel.

[0043] Reference Figure 4 and Figure 5 The fixed seat 32 is slidably connected to the inner wall of the sliding cavity 12. The sliding direction of the fixed seat 32 is parallel to the sliding direction of the sliding seat 31. A limiting component 4 is connected between the fixed seat 32 and the sliding seat 31. The limiting component 4 can oriented and limit the fixed seat 32 to the bottom wall of the sliding cavity 12. The limiting component 4 includes a limiting block 41, a positioning block 42, an elastic element 43, a guide rod 44, and a power cylinder 45. The number of limiting blocks 41 can be one or two. In this embodiment, the number of limiting blocks 41 is two. The ends of the two limiting blocks 41 are connected by bolts. Fixed on both sides of the fixed base 32 in the width direction, the moving cavity 311 has a limiting cavity 314 on the inner wall facing the limiting block 41 for the limiting block 41 to slide. The limiting cavity 314 penetrates the surface of the sliding base 31 and communicates with the sliding cavity 12. The number of positioning blocks 42 can be one or two. In this embodiment, the number of positioning blocks 42 is two. The two positioning blocks 42 are fixed one-to-one with bolts to the inner walls of the sliding cavity 12 facing each other. The ends of the positioning blocks 42 are embedded in the limiting cavity 314, and the positioning blocks 42 are located on the side of the limiting block 41 facing the cavity 11.

[0044] Reference Figure 3 and Figure 4 The elastic element 43 can be a compression spring or a tension spring. In this embodiment, the elastic element 43 is a compression spring with a certain deformation capability. One end of the elastic element 43 in the direction of elastic force is connected to the inner wall of the sliding cavity 12, and the other end of the elastic element 43 in the direction of elastic force is connected to the surface of the fixed seat 32. The elastic element 43 is located on the side of the fixed seat 32 away from the cavity 11. The elastic element 43 has the elastic force to drive the fixed seat 32 to slide towards the positioning block 42. The end face of the positioning block 42 abuts against the end of the limiting block 41 to form a limit, and the end face of the force-applying block 34 tends to be flush with the surface of the sliding seat 31.

[0045] Reference Figure 3 and Figure 4The power cylinder 45 is fixed to the inner wall of the sliding cavity 12 away from the cavity 11 by bolts. The piston rod axis of the power cylinder 45 and the sliding direction of the sliding seat 31 are parallel to each other. The end of the piston rod of the power cylinder 45 is connected to the surface of the sliding seat 31. When the piston rod of the power cylinder 45 extends, it drives the sliding seat 31 to slide along the inner wall of the sliding cavity 12 towards the cavity 11, and the surface of the sliding seat 31 is flush with the inner wall of the cavity 11. When the piston rod of the power cylinder 45 retracts, it drives the sliding seat 31 to slide along the inner wall of the sliding cavity 12 away from the cavity 11.

[0046] Reference Figure 3 and Figure 4 The two ends of the guide rod 44 are connected one-to-one to the inner walls of the moving cavity 311. The surface of the fixed seat 32 is provided with a guide hole 321 for the guide rod 44 to pass through. The axis of the guide hole 321 coincides with the axis of the guide rod 44. The guide hole 321 passes through both sides of the fixed seat 32 along its own axis. When the sliding seat 31 slides on the inner wall of the sliding cavity 12, it drives the guide rod 44 to slide along the inner wall of the guide hole 321, so that the sliding seat 31 is not easy to deviate when sliding on the inner wall of the sliding cavity 12, thereby improving the stability of the sliding seat 31.

[0047] Reference Figure 5 and Figure 6 A heat dissipation assembly 5 is connected between the sliding seat 31 and the fixed seat 32. The heat dissipation assembly 5 can cool the surface of the fixed seat 32. The heat dissipation assembly 5 includes a heat dissipation piston 51, a heat dissipation screw 52, ​​a connecting rope 53, an elastic element 54, a one-way valve 55, and a one-way valve 56. A heat dissipation cavity 322 for the heat dissipation screw 52 to rotate is opened in the fixed seat 32. The axis of the heat dissipation screw 52 and the width direction of the fixed seat 32 are parallel to each other. The material of the heat dissipation piston 51 can be rubber or silicone. In this embodiment, the material of the heat dissipation piston 51 is rubber, which has a certain deformation capability. The heat dissipation piston 51 is threaded to the outer circumferential surface of the heat dissipation screw 52, ​​and the heat dissipation piston 51 slides along the axis of the heat dissipation screw 52 on the inner wall of the heat dissipation cavity 322.

[0048] Reference Figure 5 and Figure 6 The inner wall of the heat dissipation cavity 322 is provided with a connecting cavity 323 for the connecting rope 53 to pass through. The connecting cavity 323 passes through the surface of the fixed seat 32 and communicates with the moving cavity 311. One end of the connecting rope 53 is wrapped around the outer circumference of the heat dissipation screw 52, ​​and the other end of the connecting rope 53 passes through the connecting cavity 323 and is fixed to the inner wall of the moving cavity 311. In this embodiment, the elastic element 54 is a coil spring with a certain deformation capability. One end of the elastic element 54 in the elastic direction is connected to the inner wall of the heat dissipation cavity 322, and the other end of the elastic element 54 in the elastic direction is connected to the outer circumference of the heat dissipation screw 52. The elastic element 54 has the elastic force to drive the heat dissipation screw 52 to rotate. The connecting rope 53 is wrapped around the outer circumference of the heat dissipation screw 52, ​​and the connecting rope 53 tends to be in a taut state.

[0049] Reference Figure 5 and Figure 6 The cooling piston 51 divides the cooling chamber 322 into two cooling sections 3221. One cooling section 3221 has a vent 324 on its inner wall, which penetrates the inner wall and connects to the moving chamber 311. The other cooling section 3221 has an outlet 325 on its inner wall, which penetrates the inner wall and connects to both the cooling section 3221 and the moving chamber 311. A first check valve 55 is connected to the inner wall of the outlet 325, allowing air from the moving chamber 311 to enter the cooling section 3221 through the outlet 325. A cooling flow channel 326 is formed on the inner wall of the cooling section 3221. A second check valve 56 is connected to the cooling section... The air in the heat dissipation section 3221 enters the heat dissipation flow channel 326 through the inner wall of the flow channel 326. The heat dissipation flow channel 326 passes through the surface of the fixed seat 32 in the direction of approaching one of the core pullers 33. The surface of the core puller 33 facing the heat dissipation flow channel 326 has an inlet flow channel 331. The inlet flow channel 331 passes through the surface of the core puller 33 in the direction of approaching the force application block 34. The surface of the force application block 34 facing the inlet flow channel 331 has an outlet flow channel 341. The outlet flow channel 341 passes through the surface of the force application block 34 in the direction of away from the core puller 33. The outlet flow channel 341 is connected to the inlet flow channel 331. The inclination height of the outlet flow channel 341 increases as the distance to the core puller 33 decreases.

[0050] Reference Figure 5 and Figure 6 When the sliding seat 31 slides along the inner wall of the sliding cavity 12 toward the cavity 11, the distance between the inner wall of the moving cavity 311 and the surface of the fixed seat 32 increases. The connecting rope 53 is pulled out, driving the heat dissipation screw 52 to rotate, pushing the heat dissipation piston 51 to slide along the axis of the heat dissipation screw 52 toward the vent 324. Air in one of the heat dissipation sections 3221 enters the moving cavity 311 through the vent 324. At the same time, air in the moving cavity 311 enters the other heat dissipation section 3221 through the one-way valve 55 and the air outlet 325, pushing the air flow in the moving cavity 311. This allows the fixed seat 32 and the sliding seat 31 to fully contact the air and exchange heat, thereby cooling the sliding seat 31 and the fixed seat 32. This prevents the fixed seat 32 and the sliding seat 31 from being deformed due to prolonged exposure to high temperatures, thus improving the cooling efficiency of the fixed seat 32 and the sliding seat 31.

[0051] Reference Figure 5 and Figure 6When the sliding seat 31 slides away from the cavity 11 along the inner wall of the sliding cavity 12, the distance between the inner wall of the moving cavity 311 and the surface of the fixed seat 32 decreases. The elastic element 54 drives the heat dissipation screw 52 to rotate in the opposite direction. The connecting rope 53 is wrapped around the outer circumference of the heat dissipation screw 52, ​​pushing the heat dissipation piston 51 to slide along the axis of the heat dissipation screw 52 towards the heat dissipation channel 326. The air in the moving cavity 311 enters one of the heat dissipation sections 3221 through the vent 324. At the same time, the air in the other heat dissipation section 3221 passes through the one-way valve 56, the heat dissipation channel 326 and the inlet channel 331 in sequence and is discharged from the outlet channel 341 and impacts the front door interior panel. The air comes into full contact with the front door interior panel and exchanges heat, further improving the cooling efficiency of the front door interior panel.

[0052] Reference Figure 5 and Figure 6 A fixing component 6 is connected between the core puller 33 and the force application block 34. The fixing component 6 enables a detachable connection between the core puller 33 and the force application block 34. The fixing component 6 includes a fixing rod 61, two elastic elements 62 and two fixing plates 63. The end face of the force application block 34 has a fixing cavity 342 for the end of the core puller 33 to be inserted. The end face of the core puller 33 abuts against the inner wall of the fixing cavity 342 to form a limit, thereby achieving the initial limit between the core puller 33 and the force application block 34. The fixing cavity 342 is connected to the air outlet channel 341. The surface of the force application block 34 has a fixing hole 343 for the fixing rod 61 to pass through. The fixing hole 343 passes through both sides of the force application block 34 along its own axis and connects to the fixing cavity 342.

[0053] Reference Figure 5 and Figure 6 The end face of the core puller 33 facing the first fixing hole 343 is provided with a second fixing hole 332 for the fixing rod 61 to pass through. The axis of the first fixing hole 343 and the axis of the second fixing hole 332 coincide. The second fixing hole 332 passes through both sides of the core puller 33 along its own axis and connects to the air intake channel 331. The end face of the fixing rod 61 facing the air intake channel 331 is provided with a clearance hole 611. The clearance hole 611 passes through both sides of the fixing rod 61 along its own axis. When the end of the core puller 33 is embedded in the fixing cavity 342, the first fixing hole 343 connects to the second fixing hole 332. The end of the fixing rod 61 passes through the first fixing hole 343 and the second fixing hole 332 in sequence. The inner wall of the first fixing hole 343 abuts against the fixing rod 61 and forms a limit on the outer circumference. The clearance hole 611 connects to the air intake channel 331.

[0054] Reference Figure 5 and Figure 6The inner walls of both ends of the fixing hole 343 along the axial direction are provided with slideways 344 for the fixing plate 63 to slide. The sliding direction of the fixing plate 63 is perpendicular to the axis of the fixing rod 61. The two ends of the fixing rod 61 along the axial direction are provided with grooves 612 for the end of the height plate to slide. When the grooves 612 are connected to the slideways 344, the clearance hole 611 is connected to the air intake channel 331. The elastic element 62 can be a compression spring or a tension spring. In this embodiment, the elastic element 62 is a compression spring and has a certain deformation capability. One end of the elastic element 62 in the elastic direction is connected to the surface of the fixing plate 63, and the other end of the elastic element 62 in the elastic direction is connected to the inner wall of the slideway 344. The elastic element 62 has the elastic force to drive the fixing plate 63 to slide towards the groove 612. The end of the fixing plate 63 passes through the groove 612 and closes the fixing hole 343.

[0055] Reference Figure 5 and Figure 6 The two fixing plates 63 correspond to each other and abut against the two ends of the fixing rod 61 in the axial direction to form a limit, making it difficult for the fixing rod 61 to fall out of the fixing hole 343, thereby providing the limiting stability of the fixing rod 61 in the fixing hole 343.

[0056] Reference Figure 5 and Figure 6 A sealing component 7 is connected between the force-applying block 34 and the core-pulling block 33. The sealing component 7 can improve the sealing stability between the inlet air passage 331 and the outlet air passage 341. The sealing component 7 includes a sealing ring 71, a thermal expansion and contraction ring 72, and multiple elastic blocks 73. The material of the elastic blocks 73 can be rubber or silicone. In this embodiment, the material of the elastic blocks 73 is rubber or silicone. In this embodiment, the material of the elastic blocks 73 is rubber, which has a certain deformation capability. Multiple elastic blocks 73 are spaced apart and connected to the inner wall of the inlet air passage 331 facing the outlet air passage 341. Multiple elastic blocks 73 are spliced ​​to form a circular plate and close the inlet air passage 331. The sealing ring 71 is fixed to the inner wall of the fixed cavity 342 facing the inlet air passage 331. The end of the sealing ring 71 can be embedded in the inlet air passage 331 and squeeze the elastic block 73. The elastic block 73 is deformed under pressure, and the sealing effect of the elastic block 73 on the inlet air passage 331 disappears. The inner wall of the inlet air passage 331 and the outer ring wall of the sealing ring 71 abut against both sides of the elastic block 73 to form a seal.

[0057] Reference Figure 5 and Figure 6The material of the thermal expansion and contraction ring 72 can be nylon or shape memory alloy. In this embodiment, the material of the thermal expansion and contraction ring 72 is shape memory alloy, which has a high coefficient of thermal expansion. The inner wall of the inlet air passage 331 near the outlet air passage 341 is coaxially provided with a mounting groove 333 for embedding the thermal expansion and contraction ring 72. The mounting groove 333 is located on the side of the elastic block 73 away from the force application block 34. When the inner wall of the inlet air passage 331 and the outer wall of the sealing ring 71 abut against both sides of the elastic block to form a seal, the inner wall of the thermal expansion and contraction ring 72 abuts against the surface of the elastic block 73 to form a seal. When the thermal expansion and contraction ring 72 heats up and expands, the inner wall of the thermal expansion and contraction ring 72 squeezes the surface of the elastic block 73 to form a seal.

[0058] The implementation principle of the mold for the left and right front door sill interior panels in this application embodiment is as follows: the rubber material enters the cavity 11 through the injection port 21. When the rubber material in the cavity 11 cools and forms the front door sill interior panel, the piston rod of the power cylinder 45 retracts, driving the sliding seat 31 to slide along the inner wall of the sliding cavity 12 in a direction away from the cavity 11. The surface of the sliding seat 31 detaches from the front door sill interior panel surface. At the same time, the fixed seat 32 slides on the inner wall of the moving cavity 311, driving the core puller 33 to pass through the moving groove 312. One end of the force application block 34 disengages from the groove 313, and the other end of the force application block 34 always abuts against the front door sill interior panel surface to form support. This realizes the setting of multiple force application points on the front door sill interior panel surface, ensuring that the demolding force distribution of the front door sill interior panel surface is uniform, avoiding scratches, indentations or deformation of the front door interior panel surface due to excessive local force, thereby improving the production quality of the front door sill interior panel.

[0059] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A mold for the interior trim panels of the left and right front door sills, characterized in that: The system includes a fixed mold (1), a moving mold (2), and a demolding assembly (3). The moving mold (2) is slidably connected to the surface of the fixed mold (1). When the moving mold (2) and the fixed mold (1) are closed, they form a cavity (11) for injection molding. The demolding assembly (3) includes a sliding seat (31), a fixed seat (32), multiple core pullers (33), and multiple force application blocks (34). The surface of the fixed mold (1) facing the moving mold (2) has a sliding cavity (12) for the sliding seat (31) to slide. The sliding cavity (12) is connected to the cavity (11). The end face of the sliding seat (31) facing the cavity (11) can abut against the product surface. The fixed seat (32) is connected to the bottom wall of the sliding cavity (12). The surface of the sliding seat (31) has a moving cavity (311) for the fixed seat (32) to slide. The ends of the multiple core pullers (33) are spaced apart and connected to the fixed seat (32) facing the cavity (11). The surface of the cavity (11) has a plurality of moving grooves (312) spaced apart on the inner wall of the moving cavity (311) for the core puller (33) to pass through. The moving grooves (312) are connected to the cavity (11). The end of the core puller (33) passes through the moving grooves (312) and is connected to the surface of the force block (34). The moving grooves (312) have grooves (313) on the inner wall of the cavity (11) for the force block (34) to be embedded. The end face of the force block (34) facing the cavity (11) can abut against the product surface. When the sliding seat (31) slides along the inner wall of the sliding cavity (12) in a direction away from the cavity (11), it drives the core puller (33) to slide along the inner wall of the moving groove (312). The core puller (33) disengages from the groove (313) and abuts against the product surface to form support. The abutment effect between the end face of the sliding seat (31) and the product surface disappears.A heat dissipation assembly (5) is connected between the sliding seat (31) and the fixed seat (32). The heat dissipation assembly (5) includes a heat dissipation piston (51), a heat dissipation screw (52), a connecting rope (53), and an elastic element (54). A heat dissipation cavity (322) for the heat dissipation screw (52) to rotate is provided in the fixed seat (32). The heat dissipation piston (51) is threaded to the outer circumferential surface of the heat dissipation screw (52). The heat dissipation piston (51) slides along the axis of the heat dissipation screw (52) on the inner wall of the heat dissipation cavity (322). An air outlet (325) is provided on the surface of the fixed seat (32). The air outlet (325) connects the heat dissipation cavity (322) and the moving cavity (311). An opening is provided on the inner wall of the heat dissipation cavity (322) for the connecting rope to rotate. 53) A connecting cavity (323) is provided, which penetrates the surface of the fixed base (32) and communicates with the moving cavity (311). One end of the connecting rope (53) is wrapped around the outer circumference of the heat dissipation screw (52), and the other end of the connecting rope (53) passes through the connecting cavity (323) and is connected to the inner wall of the moving cavity (311). One end of the elastic element (54) in the elastic direction is connected to the inner wall of the heat dissipation cavity (322), and the other end of the elastic element (54) in the elastic direction is connected to the outer circumference of the heat dissipation screw (52). The elastic element (54) has the elasticity to drive the heat dissipation screw (52) to rotate. The connecting rope (53) is wrapped around the outer circumference of the heat dissipation screw (52), and the connecting rope (53) tends to be in a taut state.

2. The mold for the left and right front sill interior panels according to claim 1, characterized in that: The end of the core puller (33) is rotatably connected to the surface of the fixed base (32).

3. The mold for the left and right front sill interior panels according to claim 1, characterized in that: The fixed seat (32) is slidably connected to the inner wall of the sliding cavity (12). The sliding direction of the fixed seat (32) and the sliding direction of the sliding seat (31) are parallel to each other. A limiting component (4) is connected between the fixed seat (32) and the sliding seat (31). The limiting component (4) includes a limiting block (41), a positioning block (42), and an elastic element (43). The end of the limiting block (41) is connected to the surface of the fixed seat (32). The inner wall of the moving cavity (311) is provided with a limiting cavity (314) for the limiting block (41) to slide. The limiting cavity (314) penetrates the surface of the sliding seat (31) and communicates with the sliding cavity (12). The positioning block (42) is connected to the sliding cavity (12). One end is connected to the inner wall of the sliding cavity (12), and the other end of the positioning block (42) is embedded in the limiting cavity (314). The positioning block (42) is located on the side of the limiting block (41) close to the cavity (11). One end of the elastic element (43) in the elastic direction is connected to the inner wall of the sliding cavity (12), and the other end of the elastic element (43) in the elastic direction is connected to the surface of the fixed seat (32). The elastic element (43) has the elastic force to drive the fixed seat (32) to slide towards the positioning block (42). The end face of the positioning block (42) abuts against the end face of the limiting block (41) to form a limit, and the end face of the force-applying block (34) tends to be flush with the surface of the sliding seat (31).

4. The mold for the left and right front sill interior panels according to claim 3, characterized in that: The limiting assembly (4) also includes a guide rod (44) and a power cylinder (45). The power cylinder (45) is connected to the inner wall of the sliding cavity (12) away from the cavity (11). The piston rod axis of the power cylinder (45) and the sliding direction of the sliding seat (31) are parallel to each other. The end of the piston rod of the power cylinder (45) is connected to the surface of the sliding seat (31). The power cylinder (45) drives the sliding seat (31) to slide on the inner wall of the sliding cavity (12). The guide rod (44) is connected to the inner wall of the moving cavity (311). The surface of the fixed seat (32) is provided with a guide hole (321) for the guide rod (44) to pass through.

5. The mold for the left and right front sill interior panels according to claim 1, characterized in that: The heat dissipation assembly (5) further includes a one-way valve (55) and a one-way valve (56). The one-way valve (55) is connected to the inner wall of the air outlet (325). The one-way valve (55) allows air in the moving cavity (311) to enter the heat dissipation cavity (322) through the air outlet (325). The inner wall of the heat dissipation cavity (322) is provided with a heat dissipation channel (326). The one-way valve (56) is connected to the inner wall of the heat dissipation channel (326). The one-way valve (56) allows air in the heat dissipation cavity (322) to enter the heat dissipation channel (326). The heat dissipation channel (326) penetrates the surface of the fixing base (32) in the direction of approaching one of the core pulls (33). The surface of the core pull (33) facing the heat dissipation channel (326) is provided with an air inlet channel (331). The air inlet channel (331) penetrates the surface of the core pull (33) in the direction of approaching the force application block (34). The surface of the force application block (34) is provided with an air outlet channel (341). The air outlet channel (341) is connected to the air inlet channel (331). The inclination height of the air outlet channel (341) increases as the distance to the core pull (33) decreases.

6. The mold for the left and right front sill interior panels according to claim 5, characterized in that: A fixing component (6) is connected between the core puller (33) and the force application block (34). The fixing component (6) includes a fixing rod (61). The end face of the force application block (34) has a fixing cavity (342) for the end of the core puller (33) to be inserted. The fixing cavity (342) is connected to the air outlet channel (341). The surface of the force application block (34) has a fixing hole (343) for the fixing rod (61) to be inserted. The fixing hole (343) is connected to the fixing cavity (342). The surface of the core puller (33) has a fixing hole (332) for the fixing rod (61) to pass through. The second fixing hole (332) is connected to the air intake channel (331). When the end of the core puller (33) is embedded in the fixing cavity (342), the first fixing hole (343) is connected to the second fixing hole (332). The end of the fixing rod (61) is sequentially provided with the first fixing hole (343) and the second fixing hole (332). The inner wall of the first fixing hole (343) abuts against the outer circumference of the fixing rod (61) to form a limit. The fixing rod (61) has a relief hole (611) on its rod surface. The relief hole (611) passes through both sides of the fixing rod (61) and is connected to the air intake channel (331).

7. The mold for the left and right front sill interior panels according to claim 6, characterized in that: The fixing assembly (6) further includes at least two elastic elements (62) and at least two fixing plates (63). Both ends of the fixing hole (343) in the axial direction are provided with slideways (344) for sliding of the fixing plates (63). One end of the elastic element (62) in the elastic direction is connected to the inner wall of the slideway (344), and the other end of the elastic element (62) in the elastic direction is connected to the surface of the fixing plate (63). The elastic element (62) has the elastic driving force to fix the plate. The fixed plate (63) slides toward the direction of the first fixing hole (343) and tends to close the first fixing hole (343). The two ends of the fixed rod (61) in the axial direction are provided with sliding grooves (612) for the fixed plate (63) to pass through. When the end of the fixed rod (61) passes through the first fixing hole (343) and the second fixing hole (332) in sequence, and the sliding groove (612) is connected to the slide (344), the clearance hole (611) is connected to the air intake channel (331).

8. The mold for the left and right front sill interior panels according to claim 7, characterized in that: A sealing assembly (7) is connected between the force-applying block (34) and the core puller (33). The sealing assembly (7) includes a sealing ring (71) and multiple elastic blocks (73). The multiple elastic blocks (73) are spaced apart on the inner wall of the air inlet channel (331) facing the air outlet channel (341). The multiple elastic blocks (73) are spliced ​​together to form a circular plate and seal the air inlet channel (331). The sealing ring (71) is connected to the inner wall of the fixed cavity (342) facing the air inlet channel (331). The end of the sealing ring (71) can be embedded in the air inlet channel (331) and squeeze the elastic block (73). The elastic block (73) is deformed under pressure, and the sealing effect of the elastic block (73) on the air inlet channel (331) disappears.

9. The mold for the left and right front sill interior panels according to claim 8, characterized in that: The sealing assembly (7) also includes a thermal expansion and contraction ring (72). The inner wall of the air inlet channel (331) near the air outlet channel (341) is provided with an installation groove (333) for the thermal expansion and contraction ring (72) to be embedded. The installation groove (333) is located on the side of the elastic block (73) away from the force-applying block (34). When the inner wall of the air inlet channel (331) and the outer ring wall of the sealing ring (71) clamp the two sides of the elastic block (73) to form a seal, the inner ring wall of the thermal expansion and contraction ring (72) abuts against the surface of the elastic block (73) to form a seal.

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