Injection mold for inner protective plate of automobile door

Abstract

The utility model discloses an injection mold for an inner protective plate of an automobile door, which relates to the technical field of injection molds and comprises a mounting seat, a bottom mold replacing unit and a module assembling unit. According to the automobile door inner protection plate, the inner shaping block is arranged, a groove structure of the automobile door inner protection plate can be formed, the groove shaping block at the front end of the inner shaping block extends outwards, the groove structure, used for containing articles, of the automobile door inner protection plate can be formed, and the groove shaping block can be driven by the electric push rod to return back into the inner shaping block; therefore, the subsequent demolding process is facilitated; the bottom mold can be mounted and fixed through the insertion blocks on the two sides of the bottom mold, and the bottom mold can be lifted out from the interior of the mounting seat by inserting a lifting rod into the end part, so that the bottom mold can be replaced; by arranging the edge molding blocks, a mounting frame of the automobile door inner protection plate can be formed, the molding rods are used for forming screw through holes in the frame during injection molding, and subsequent mounting of the door inner protection plate is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold for an automotive door inner panel. Background Technology

[0002] The interior door panel is usually installed on the sheet metal of the front and rear side doors in the passenger compartment area. It is a covering inside the door. The interior door panel protects the passengers inside the vehicle from the noise, temperature and humidity around the door, provides aesthetics and the overall interior quality, and serves as a mounting carrier for door handles, window control buttons, door locks and other control devices. It is an important component of the car door.

[0003] Due to the special structure of automotive door panels, their internal structure is more complex than that of ordinary injection-molded parts. To meet usage requirements, grooves and mounting structures for various components need to be formed on the end face of the inner door panel. For example, a groove for holding items needs to be formed at the bottom of the door panel during injection molding. Therefore, internal modules need to be added inside the mold to form the corresponding panel structure. In addition, existing injection molds cannot replace the bottom mold and should be able to produce a single product. To this end, we propose an injection mold for automotive door inner panels. Utility Model Content

[0004] The technical problem this utility model aims to solve is to overcome the existing defects and provide an injection mold for an automotive door inner panel. By setting an inner molding block, a groove structure for the automotive door inner panel can be formed. The groove molding block at its front end extends outward to form a groove structure for holding items in the automotive door inner panel. The groove molding block can retract into the inner molding block under the action of an electric push rod, thus facilitating the subsequent demolding process. Furthermore, the bottom mold can be installed and fixed by inserting blocks on both sides of the bottom mold, and the bottom mold can be lifted out of the mounting base by inserting a lifting rod at the end to facilitate replacement of the bottom mold. By setting an edge molding block, an installation frame for the automotive door inner panel can be formed. The molding rod is used to form screw through holes on the frame during injection molding, facilitating the subsequent installation of the door inner panel. This effectively solves the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for an automotive door inner panel, comprising a mounting base, a bottom mold replacement unit, and a module assembly unit;

[0006] The mounting base is a square, pool-shaped structure with a base plate fixedly connected to the bottom.

[0007] Bottom mold replacement unit: installed on the upper side of the mounting base;

[0008] The modular assembly unit includes a hydraulic cylinder, an upper mold cover, a lifting rod, an inner molding block, a grooved molding block, an integrated locking block, and an injection pipe. A hydraulic cylinder is installed at each of the four corners of the upper part of the base plate, with the telescopic ends of the hydraulic cylinders facing upwards and fixedly connected to the bottom four corners of the upper mold cover. The lower end of the upper mold cover has multiple rows of mounting holes arranged in a rectangular array. An inner molding block is suspended from the lower side of the upper mold cover by the lifting rod. The upper end of the lifting rod is inserted into the mounting holes. The upper end of the lifting rod has two mounting slots, front and rear, with a U-shaped integrated locking block slidably connected inside each slot. Both ends of the integrated locking block extend outwards. The upper end of the lifting rod is secured inside the mounting holes by the integrated locking block. The lower end of the lifting rod is fixedly connected to the inner molding block. An electric push rod is embedded inside the inner molding block. The grooved molding block is slidably connected to the front side of the inner molding block, and its tail is fixedly connected to the front telescopic end of the electric push rod.

[0009] The hydraulic cylinder is used to lift and lower the upper mold cover. When the upper mold cover descends, it fits against the bottom mold, forming a sealed accommodation space to prevent dust from falling in. The lifting rod is used to lift the inner plastic block. As the upper mold cover descends, the inner plastic block goes deep into the injection mold groove. The lifting rod can be locked and unlocked by pressing the integrated locking block. By setting the inner plastic block, a groove structure for the inner panel of the car door can be formed. The grooved plastic block at the front end can extend outward to form a groove structure for holding items in the inner panel of the car door. The grooved plastic block can be retracted into the inner plastic block under the action of the electric push rod, which facilitates the subsequent demolding process.

[0010] Furthermore, the module assembly unit also includes a movable shaft and a spring. The movable shaft is slidably connected to the mounting groove on the upper side of the lifting rod, and a spring is sleeved on the outer side of the movable shaft. The other end of the movable shaft is fixedly connected to the lower inner end of the integrated locking block. Under the action of the movable shaft and the spring, the integrated locking block will push outward. By pressing the lower side of the integrated locking block, the upper side of the integrated locking block will retract inward simultaneously, thereby unlocking the lifting rod. In this way, different shaped inner plastic blocks can be replaced, thereby improving the applicability of this mold and enabling the production of automotive door inner panels that meet the requirements by changing the inner plastic blocks.

[0011] Furthermore, the bottom mold replacement unit includes a bottom mold, insert blocks, locking blocks, and lifting rod insertion holes. The upper end of the mounting base has a square mounting groove, in which the bottom mold is embedded. The upper end of the bottom mold is flush with the upper surface of the mounting base. Two square locking slots are provided on both the left and right sides of the mounting base. Two insert blocks are fixedly connected to the left and right sides of the bottom mold, and locking blocks are fixedly connected to the lower side of the insert blocks. The insert blocks are inserted into the square locking slots, and the locking blocks on the lower side of the insert blocks are locked against the outer wall of the mounting base and fixedly connected to the mounting base by bolts. A circular lifting rod insertion hole is provided inside the insert block facing outwards. By inserting the four insert blocks into the square locking slots, the bottom mold can be limited and locked. The locking blocks are fixed to the mounting base by bolts, thus fixing the bottom mold. By removing the bolts and inserting a lifting rod into the lifting rod insertion hole inside the insert block, the bottom mold can be lifted out of the mounting base to replace it.

[0012] Furthermore, the bottom mold replacement unit also includes edge molding blocks and molding rods. The bottom mold has an injection groove inside, and edge molding blocks are installed along the edge of the bottom of the groove. A ring of vertical molding rods is fixedly connected at equal intervals to the upper end of the edge molding blocks. The edge molding blocks form the mounting frame of the car door inner panel, and the molding rods form screw through holes on the frame during injection molding, facilitating the subsequent installation of the door inner panel.

[0013] Furthermore, the bottom mold replacement unit also includes a thermoelectric cooler and a control console. Multiple rows of thermoelectric coolers are embedded in the bottom of the upper mounting slot of the square slot, with the cooling ends of the coolers facing upwards and fitting against the lower side of the bottom mold. A control console is mounted in the center of the front side of the mounting base, and a data display screen and a switch panel are mounted on the upper side of the control console. The thermoelectric coolers cool the bottom mold through cooling, thereby accelerating the molding of the injection molded product. The control console is used to control the start and stop of various electrical devices and to display the operating parameters of each device in real time.

[0014] Furthermore, the bottom mold replacement unit also includes a mold release agent injection groove. The upper side of the insert block has a mold release agent injection groove that extends inward and connects to an injection groove inside the bottom mold. By adding a mold release machine at the port of the mold release agent injection groove, the mold release agent flows along the channel between the bottom mold and the molded product, making it easier for the product to separate later.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This injection mold for automotive door inner panel has the following advantages:

[0016] 1. By installing an inner molding block on the lower side of the upper mold cover, the inner molding block will penetrate into the injection groove as the upper mold cover descends. By setting the inner molding block, a groove structure of the inner panel of the car door can be formed, and the grooved molding block at its front end can form a groove structure for holding items in the inner panel of the car door by extending outward. The grooved molding block can retract into the inner molding block under the drive of the electric push rod, thus facilitating the subsequent demolding process.

[0017] 2. The bottom mold can be installed and fixed by inserting blocks on both sides of the bottom mold, and the bottom mold can be lifted out of the mounting base by inserting lifting rods at the ends to replace the bottom mold; and by setting edge molding blocks, the installation frame of the car door inner panel can be formed, and the molding rod is used to form screw through holes on the frame during injection molding, which facilitates the subsequent installation of the door inner panel.

[0018] 3. This utility model, by setting an inner molding block, can form a groove structure for the inner panel of a car door. The grooved molding block at its front end extends outward to form a groove structure for holding items in the inner panel of the car door. The grooved molding block can retract into the inner molding block under the action of an electric push rod, thus facilitating the subsequent demolding process. The bottom mold can be installed and fixed by the insert blocks on both sides of the bottom mold. The bottom mold can be lifted out of the mounting base by inserting a lifting rod at the end to replace the bottom mold. By setting an edge molding block, an installation frame for the inner panel of the car door can be formed. The molding rod is used to form screw through holes on the frame during injection molding, which facilitates the subsequent installation of the inner panel of the door. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the left side structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the lower half of the structure of this utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle;

[0023] Figure 5 This is a partial structural diagram of the module assembly unit in this utility model;

[0024] Figure 6 This is a partial structural diagram of the bottom mold replacement unit in this utility model.

[0025] In the diagram: 1 Mounting base, 2 Base plate, 3 Bottom mold replacement unit, 31 Bottom mold, 32 Insert block, 33 Clip block, 34 Lifting rod insertion hole, 35 Release agent injection groove, 36 Edge molding block, 37 Molding rod, 38 Semiconductor cooling chip, 39 Control console, 4 Module assembly unit, 41 Hydraulic cylinder, 42 Upper mold cover, 43 Lifting rod, 44 Inner molding block, 45 Groove molding block, 46 Integrated locking block, 47 Movable shaft, 48 Spring, 49 Injection pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-6 This embodiment provides a technical solution: an injection mold for an automotive door inner panel, including a mounting base 1, a bottom mold replacement unit 3, and a module assembly unit 4;

[0028] Mounting base 1 is a square pool-shaped structure, and a base plate 2 is fixedly connected to the bottom;

[0029] Bottom mold replacement unit 3: installed on the upper side of mounting base 1;

[0030] Module assembly unit 4 includes hydraulic cylinders 41, upper mold cover 42, lifting rods 43, inner molding blocks 44, groove molding blocks 45, integrated locking blocks 46, and injection pipes 49. A hydraulic cylinder 41 is installed at each of the four corners of the upper end of the base plate 2. The telescopic ends of the hydraulic cylinders 41 face upwards and are fixedly connected to the bottom four corners of the upper mold cover 42. The lower end of the upper mold cover 42 has multiple rows of mounting holes arranged in a rectangular array. The inner molding blocks 44 are suspended from the lower side of the upper mold cover 42 by the lifting rods 43. The upper end of the lifting rods 43 is inserted into the mounting holes. Inside the hole, the upper end of the lifting rod 43 has two mounting slots, one at the front and one at the back. A U-shaped integrated locking block 46 is slidably connected inside the slot. Both ends of the integrated locking block 46 extend outward. The upper end of the lifting rod 43 is fixed inside the mounting hole by the integrated locking block 46. The lower end of the lifting rod 43 is fixedly connected to the inner plastic block 44. An electric push rod is embedded inside the inner plastic block 44. The grooved plastic block 45 is slidably connected to the front side of the inner plastic block 44, and its tail is fixedly connected to the front telescopic end of the electric push rod.

[0031] The hydraulic cylinder 41 is used to drive the upper mold cover 42 to rise and fall. When the upper mold cover 42 falls, it fits against the bottom mold 31 to form a sealed accommodation space to prevent dust from falling in. The lifting rod 43 is used to lift the inner plastic block 44. As the upper mold cover 42 falls, the inner plastic block 44 goes deep into the injection mold groove. The lifting rod 43 can be locked and unlocked by pressing the integrated locking block 46. By setting the inner plastic block 44, a groove structure of the inner panel of the car door can be formed. The groove plastic block 45 at its front end can form a groove structure for holding items in the inner panel of the car door by extending outward. The groove plastic block 45 can be pushed back into the inner plastic block 44 by the electric push rod, which facilitates the subsequent demolding process.

[0032] The module assembly unit 4 also includes a movable shaft 47 and a spring 48. The movable shaft 47 is slidably connected to the mounting groove on the upper side of the lifting rod 43. The spring 48 is sleeved on the outer side of the movable shaft 47. The other end of the movable shaft 47 is fixedly connected to the lower inner end of the integrated locking block 46. Under the action of the movable shaft 47 and the spring 48, the integrated locking block 46 will be pushed outward. By pressing the lower side of the integrated locking block 46, the upper side of the integrated locking block 46 will retract inward simultaneously, thereby unlocking the lifting rod 43. In this way, inner plastic blocks 44 of different shapes can be replaced, thereby improving the applicability of this mold and enabling the production of automotive door inner panels that meet the requirements by changing the inner plastic blocks 44.

[0033] The bottom mold replacement unit 3 includes a bottom mold 31, insert blocks 32, locking blocks 33, and lifting rod insertion holes 34. The upper end of the mounting base 1 has a square mounting groove, in which the bottom mold 31 is embedded. The upper end of the bottom mold 31 is flush with the upper surface of the mounting base 1. Two square locking slots are opened on both the left and right sides of the mounting base 1. Two insert blocks 32 are fixedly connected to the left and right sides of the bottom mold 31. The lower side of the insert blocks 32 is fixedly connected to the locking blocks 33. The insert blocks 32 are inserted into the square locking slots. The locking blocks 33 on the lower side of the insert blocks 32 are locked at the outer wall of the mounting base 1 and are fixedly connected to the mounting base 1 by bolts. The inside of the insert blocks 32 has a circular lifting rod insertion hole 34 facing outward. By inserting four insert blocks 32 into the square slots, the bottom mold 31 can be positioned and locked. The locking blocks 33 can be fixed to the mounting base 1 by bolts, thereby fixing the bottom mold 31. By removing the bolts and inserting a lifting rod into the lifting rod hole 34 inside the insert block 32, the bottom mold 31 can be lifted out of the mounting base 1 to replace the bottom mold.

[0034] The bottom mold replacement unit 3 also includes edge molding blocks 36 and molding rods 37. An injection groove is provided inside the bottom mold 31. Edge molding blocks 36 are installed along the edge of the bottom of the groove. A ring of vertical molding rods 37 is fixedly connected at equal intervals to the upper end of the edge molding blocks 36. The edge molding blocks 36 form the mounting frame of the car door inner panel, and the molding rods 37 form screw through holes on the frame during injection molding, facilitating the subsequent installation of the door inner panel.

[0035] The bottom mold changing unit 3 also includes a thermoelectric cooler 38 and a control console 39. Multiple rows of thermoelectric coolers 38 are embedded in the bottom of the mounting slot on the upper side of the square slot, with the cooling ends of the thermoelectric coolers 38 facing upwards and fitting against the lower side of the bottom mold 31. The control console 39 is mounted on the center of the front side of the mounting base 1, and a data display screen and switch panel are mounted on the upper side of the control console 39. The thermoelectric coolers 38 cool the bottom mold 31 to accelerate the molding of the injection molded product. The control console 39 controls the start and stop of various electrical devices and displays the operating parameters of each device in real time.

[0036] The bottom mold changing unit 3 also includes a mold release agent injection groove 35. The mold release agent injection groove 35 is provided on the upper side of the insert block 32. The mold release agent injection groove 35 extends inward and is connected to the injection groove opened inside the bottom mold 31. By adding a mold release machine at the port of the mold release agent injection groove 35, the mold release agent flows along the channel into the space between the bottom mold 31 and the molded product, making it easier for the product to separate later.

[0037] The working principle of the injection mold for an inner panel of a car door provided by this utility model is as follows: This injection mold has a reliable modular assembly unit 4. A hydraulic cylinder 41 is used to drive the upper mold cover 42 to rise and fall. When the upper mold cover 42 falls, it fits against the bottom mold 31, thereby forming a sealed accommodation space to prevent dust from falling in. The lifting rod 43 is used to lift the inner plastic block 44. As the upper mold cover 42 falls, the inner plastic block 44 penetrates into the injection groove. The lifting rod 43 can be locked and unlocked by pressing the integrated locking block 46. By setting the inner plastic block 44, a groove structure for the inner panel of the car door can be formed, and the groove at its front end is shaped. Block 45 extends outward to form a groove structure for holding items in the inner panel of the car door. The grooved plastic block 45 can retract into the inner plastic block 44 under the action of the electric push rod, thus facilitating the subsequent demolding process. Under the action of the movable shaft 47 and the spring 48, the integrated locking block 46 will be pushed outward. By pressing the lower side of the integrated locking block 46, the upper side of the integrated locking block 46 will retract inward simultaneously, thereby unlocking the lifting rod 43. In this way, inner plastic blocks 44 of different shapes can be replaced, thereby improving the applicability of this mold and enabling the production of car door inner panels that meet the requirements by changing the inner plastic block 44. This injection mold also features a reliable bottom mold replacement unit 3. The bottom mold 31 can be fixed in place via inserts 32 on both sides, and can be lifted out of the mounting base 1 by inserting a lifting rod at the end for replacement. Furthermore, by setting edge molding blocks 36, an installation frame for the automotive door inner panel can be formed. Molding rods 37 are used to create screw through holes on the frame during injection molding, facilitating subsequent installation of the door inner panel. In addition, a conductor cooling plate 38 cools the bottom mold 31, accelerating the molding of the injection molded product. A control console 39 controls the start and stop of various electrical devices and displays their operating parameters in real time. By adding a mold release machine at the port of the mold release agent injection tank 35, the mold release agent flows along the channel between the bottom mold 31 and the molded product, making subsequent product separation easier.

[0038] It is worth noting that in the above embodiments, the input ends of the electric push rods in the semiconductor cooling chip 38, hydraulic cylinder 41, and inner molding block 44 are all electrically connected to the output end of an external power supply through the control console 39. The control console 39 controls the operation of the electric push rods in the semiconductor cooling chip 38, hydraulic cylinder 41, and inner molding block 44 using methods commonly used in the prior art.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An injection mold for an automotive door inner panel, characterized in that: Including installation seat (1), bottom die replacement unit (3) and module assembly unit (4); The installation seat (1) is a square pool-shaped structure, and a bottom plate (2) is fixedly connected to the bottom thereof; The bottom die replacement unit (3) is installed on the upper side of the installation seat (1); The module assembly unit (4) comprises a hydraulic cylinder (41), an upper die cover (42), a hoisting inserting rod (43), an inner plastic block (44), a groove plastic block (45), an integrated lock block (46) and an injection pipe (49), four corners of the upper end of the bottom plate (2) are each provided with a hydraulic cylinder (41), the telescopic end of the hydraulic cylinder (41) faces upward, and the bottom four corners of the upper die cover (42) are fixedly connected; a plurality of rows of mounting insertion holes are formed in the lower end of the upper die cover (42) in a rectangular array, the lower side of the upper die cover (42) is hoisted with the inner plastic block (44) through the hoisting inserting rod (43), the upper end of the hoisting inserting rod (43) is inserted into the inner part of the mounting insertion hole, two mounting grooves are formed in the upper end of the hoisting inserting rod (43), the U-shaped integrated lock block (46) is slidably connected in the mounting groove, the two ends of the integrated lock block (46) extend outward, the upper end of the hoisting inserting rod (43) is clamped and fixed in the inner part of the mounting insertion hole through the integrated lock block (46), the lower end of the hoisting inserting rod (43) is fixedly connected with the inner plastic block (44), and the inner plastic block (44) is embedded with an electric push rod; the inner plastic block (44) is slidably connected with the groove plastic block (45) on the front side, and the tail of the groove plastic block (45) is fixedly connected with the front telescopic end of the electric push rod.

2. The injection mold for an automobile inner door panel according to claim 1, wherein: The module assembly unit (4) further comprises a movable shaft (47) and a spring (48), the movable shaft (47) is slidably connected in the mounting groove on the upper side of the hoisting inserting rod (43), the outer side of the movable shaft (47) is sleeved with the spring (48), and the other end of the movable shaft (47) is fixedly connected with the inner end of the lower side of the integrated lock block (46).

3. The injection mold for an automobile inner door panel according to claim 1, wherein: The bottom die replacement unit (3) comprises a bottom die (31), an inserting block (32), a clamping block (33) and a lifting rod insertion hole (34), a square mounting groove is formed in the upper end of the installation seat (1), the bottom die (31) is embedded and mounted in the groove, the upper end of the bottom die (31) is flush with the upper end surface of the installation seat (1), two square clamping grooves are formed in the left and right sides of the installation seat (1), two inserting blocks (32) are fixedly connected to the left and right sides of the bottom die (31), the clamping block (33) is fixedly connected to the lower side of the inserting block (32), the inserting block (32) is inserted into the square clamping groove, the clamping block (33) on the lower side of the inserting block (32) is clamped on the outer wall of the installation seat (1) and is fixedly connected with the installation seat (1) through bolts, and a circular lifting rod insertion hole (34) is formed outward in the inner part of the inserting block (32).

4. The injection mold for an automobile inner door panel according to claim 3, wherein: The bottom die replacement unit (3) further comprises an edge plastic block (36) and a plastic rod (37), an injection groove is formed in the inner part of the bottom die (31), the edge plastic block (36) is mounted on the edge of the bottom of the groove, and a plurality of vertical plastic rods (37) are fixedly connected to the upper end of the edge plastic block (36) at equal intervals.

5. The injection mold for an automobile inner door panel according to claim 3, wherein: The bottom mold changing unit (3) further comprises semiconductor refrigerating sheets (38) and a control console (39), the bottom of the square clamping groove upper mounting groove is embeddedly mounted with a plurality of rows of semiconductor refrigerating sheets (38), the refrigerating end of the semiconductor refrigerating sheet (38) faces upward and is attached to the lower side of the bottom mold (31), the front middle part of the mounting base (1) is mounted with the control console (39), and the upper side of the control console (39) is mounted with a data display screen and a switch panel.

6. The injection mold for an automobile door inner panel according to claim 5, wherein: The bottom mold changing unit (3) further comprises a release agent injection groove (35), the upper side of the plug block (32) is provided with the release agent injection groove (35), the release agent injection groove (35) extends inwardly and is in communication with the injection groove provided in the inside of the bottom mold (31).

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