Injection mold for automobile sealing cap

Abstract

The utility model relates to the technical field of injection molding, in particular to an injection mold for an automobile sealing cap, which comprises an upper injection mold, a lower injection mold, a demolding assembly and an air inlet assembly, a communicating and butting assembly is arranged between the upper injection mold and the lower injection mold, the communicating and butting assembly comprises a butting cavity, a guide column and a butting block, and the demolding assembly comprises a lifting table, a lifting block and an ejector rod. The air inlet assembly comprises an air conveying groove, the air conveying groove communicates with the butt joint cavity, an air storage cavity is formed in the lifting table, the lifting table is in butt joint with the butt joint cavity through a guide column, the guide column drives a lifting block to move downwards to extrude a small-diameter spring, and the lifting block is connected with the lifting table through a connecting rod to extrude a large-diameter spring downwards in a containing groove. Air is introduced into the small vent holes through the air inlet grooves in the guide columns, an injection molding part is separated from the mold body, then the small-diameter spring and the large-diameter spring are used for driving the ejector rod on the lifting table to move upwards, the injection molding part is pushed out, and the injection molding upper mold demolds the injection molding part through the air entering the second vent holes.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, in particular to an injection mold for an automobile sealing cap. Background Art

[0002] In the process of designing the whole vehicle, one of the most important parts is the sealing cap of the vehicle. Its function is to seal the vehicle. As a relatively important part in the car, the sealing cap plays a very important role in the sealing of the vehicle. It is mainly produced by injection molding equipment.

[0003] In the injection molding process of existing sealing caps, since the products are small, rapid demoulding is required in the single injection molding process of multiple products, and the demoulding method is mainly to complete the separation through the ejector pin.

[0004] However, it is not easy to demold after the injection molding is completed. After the injection molding is completed, the molded parts will be stuck in the upper mold or the lower mold, which will take a certain amount of time to remove the mold, delaying the injection molding process and low work efficiency. Moreover, using only the ejector to eject the molded parts may cause damage to some of the injection molded parts. Utility Model Content

[0005] The utility model aims to provide an injection mold for an automobile sealing cap to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: it includes an injection molding upper mold, an injection molding lower mold, a demolding assembly and an air intake assembly, a connecting docking assembly is provided between the injection molding upper mold and the injection molding lower mold, the connecting docking assembly includes four docking cavities, four guide pillars and four docking blocks, a placement groove is provided in the injection molding lower mold, the demolding assembly includes a lifting platform and a plurality of ejector rods, a plurality of cavities are symmetrically provided at the lower end of the injection molding upper mold, a plurality of cores are symmetrically provided at the upper end of the injection molding lower mold, and a plurality of cores are plugged into the plurality of cavities, a plurality of air intake assemblies include an air conveying groove, and the air conveying groove is connected with the four docking cavities, a gas storage cavity is provided in the lifting platform, the lifting platform is located in the placement groove, the gas storage cavity is connected with the four docking cavities, the four guide pillars are docked with the four docking cavities through the four docking grooves, and the four guide pillars are provided with sealing pads when docking with the four docking cavities, which effectively protects the sealing when air flows in.

[0007] Preferably, a first vent hole is provided at the center of each of the four docking cavities, one side of the first vent hole is connected to an air delivery groove, and the first vent hole delivers air through the air delivery groove.

[0008] Preferably, the injection lower mold is symmetrically provided with four docking blocks on one side close to the injection upper mold, the four docking blocks and the four docking cavities are all conical structures, the four docking blocks are respectively vertically movably plugged into four guide pillars, the centers of the four guide pillars are all provided with air inlet grooves, one side of the air inlet grooves is connected with the air delivery groove through the first vent hole, the injection lower mold is provided with lifting grooves below the four docking blocks, the lower ends of the four guide pillars are plugged into the lifting grooves and are horizontally provided with lifting blocks, the lower ends of the four lifting blocks are provided with small-diameter springs, one end of the lifting block is fixedly connected with a connecting rod, the interior of the connecting rod is provided with an air introduction groove, the air introduction groove is connected with the air introduction groove, a large-diameter spring is provided at the center of the lower end of the lifting platform, a plurality of ejector rods are provided on the upper side of the lifting platform, a gas storage cavity is provided inside the lifting platform, the gas storage cavity is connected with the air introduction groove, the four docking blocks and the docking grooves are all conical structures, which are convenient for docking, and at the same time, after the injection molding work is completed, the lifting platform is driven to move up under the joint action of the small-diameter spring and the large-diameter spring, so that the injection molded part is ejected by the ejector rod.

[0009] Preferably, a second gas introduction groove is opened inside some of the top rods, and one side of the second gas introduction groove is connected to the gas storage chamber, and the air in the air delivery groove is passed into the gas storage chamber for storage.

[0010] Preferably, a diverter groove is opened in the core, and a first small air vent is opened on both sides of the diverter groove to connect the mold cavity. Several of the push rods are vertically movable and penetrate the center of several cores. Several of the push rods penetrate the upper ends of several cores and are flush with the upper ends of several cores. Several of the push rods are placed in the diverter groove to connect with the second gas introduction groove and have several second small air vents. The gas stored in the gas storage cavity is introduced into the diverter groove through the second small air vents on the push rods, and the injection molded part is pneumatically demolded through the first small air vent on the core.

[0011] Preferably, a second vent hole is provided on the inner side of the cavity near the ejector pin, a plurality of air dispersion grooves are horizontally provided in the injection upper mold and connected to the air conveying groove, the upper ends of the plurality of second vent holes are respectively connected to the plurality of air dispersion grooves, an injection channel is provided on one side of the cavity, and the air is compressed and conveyed to the gas dispersion groove through the gas conveying groove through the ventilation structure, and then the injection molded part is demolded by the second vent hole.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model connects with the docking cavity through the guide column, so that the guide column drives the lifting block to move downward to extrude the small-diameter spring. At the same time, the lifting block is connected to the lifting platform through the connecting rod to extrude the large-diameter spring downward in the placement groove. After the injection molding work is completed, air is introduced into the small air vents on both sides of the ejector rod and the core through the air inlet groove on the guide column, so that the injection molded part and the mold body are separated from the fitting posture, and then the small-diameter spring and the large-diameter spring are used to cooperate to drive the lifting platform to push the ejector rod upward to push the injection molded part out, and the injection molding upper mold diverts the air into the air diversion groove through the air conveying groove, and then the air enters the second air vent through the air diversion groove to demold the injection molded part. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a left side cross-sectional schematic diagram of the structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the injection molding upper mold of the utility model;

[0017] Figure 4 For this utility model Figure 3 Schematic diagram of part A;

[0018] Figure 5 This is a schematic diagram of the lower injection mold of the utility model;

[0019] Figure 6 This is a cross-sectional schematic diagram of the lower injection mold of the utility model;

[0020] Figure 7 This is a schematic diagram of the cross-sectional structure of the injection mold of the utility model;

[0021] Figure 8 For this utility model Figure 7 Schematic diagram of part B in FIG.

[0022] Fig. 9 This is a schematic diagram of the oblique cross-section structure of the utility model;

[0023] Fig.10 For this utility model Fig. 9 Schematic diagram of the C site.

[0024] In the figure: 1 injection molding upper mold, 11 cavity, 12 docking cavity, 121 first vent, 13 air delivery groove, 14 air diversion groove, 15 second vent, 16 injection molding channel, 2 injection molding lower mold, 21 core, 212 first small vent, 213 second small vent, 22 placement groove, 23 guide column, 231 air inlet groove, 24 connecting rod, 241 first air inlet groove, 25 lifting block, 26 lifting platform, 261 ejector rod, 262 second gas inlet groove, 27 gas storage cavity, 28 docking block, 201 small diameter spring, 202 large diameter spring. DETAILED DESCRIPTION

[0025] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Please see attached Figure 1-10 , this application provides the following technical solutions.

[0027] Embodiment 1

[0028] See also Figures 3 to 10 The utility model provides a technical solution, including an injection mold 1, an injection mold 2, a demoulding assembly and an air intake assembly. A connecting and docking assembly is provided between the injection mold 1 and the injection mold 2, and the connecting and docking assembly includes four docking cavities 12, four guide pillars 23 and four conical docking blocks. A movable cavity is provided in the injection mold 2. The demoulding assembly includes a lifting platform 26 and a plurality of ejector rods 261. The lower end of the injection mold 1 is symmetrically provided with a plurality of cavities 11, and the upper end of the injection mold 2 is symmetrically provided with a plurality of cores 21. The air intake assembly includes an air conveying groove 13, an air The air delivery groove 13 is connected with the four docking chambers 12, and a gas storage chamber 27 is opened in the lifting platform 26. The lifting platform 26 is located in the placement groove 22. The gas storage chamber 27 is connected with the four docking chambers 12. When the injection molding work is completed, the air is delivered to the gas storage chamber 27 through the air delivery groove 13. A plurality of ejector rods 261 are located at the upper end of the lifting platform 26. A second gas introduction groove 262 is provided inside the ejector rod 261. Finally, the gas enters the second gas introduction groove 262 and is finally blown out by the small vent 121 to make the injection molded part break away from the fitting posture.

[0029] Embodiment 2

[0030] Based on Example 1, please refer to Figures 7 to 10A lifting block 25 is provided on one side of the four guide pillars 23, and the lifting block 25 is fixedly connected to the guide pillars 23. A small-diameter spring 201 is provided on one side of the four lifting blocks 25. A connecting rod 24 is provided at one end of the lifting block 25. The lifting block 25 is fixedly connected to the connecting rod 24. An air inlet groove 241 is provided inside the connecting rod 24. A lifting platform 26 is provided at one end of the connecting rod 24. The connecting rod 24 is fixedly connected to the lifting platform 26. A large-diameter spring 202 is provided on one side of the lifting platform 26. After the injection molding is completed, the small-diameter spring 201 and the large-diameter spring 202 act simultaneously, so that the lifting platform 26 drives the ejector rod 261 to move upward, and the injection mold on the core is pushed out.

[0031] Embodiment 3

[0032] Based on Example 1, please refer to Figure 7 to Figure 8 A second air vent 15 is provided on the inner side of the cavity 11 near the ejector pin, one side of the second air vent 15 is connected to the air dispersion groove 14, one side of the air dispersion groove 14 is connected to the air conveying groove 13, an air intake device is provided on the side of the air conveying groove 13 away from the air dispersion groove 14, an injection channel 16 is provided on one side of the cavity 11, and air is input to the second air vent 15 through the air conveying groove 13 to blow out the injection mold on the cavity 11.

[0033] When in use, after the injection molding is completed, the gas is transported to the gas storage chamber 27 through the air inlet groove 231 through the air delivery groove 13, and then enters through the second gas inlet groove 262 and finally enters, and is finally blown out through the small vent hole 121 to demold the mold in the core 21, and then the small diameter spring 201 and the large diameter spring 202 act at the same time to make the lifting platform 26 drive the push rod 261 to move upward, pushing the injection mold on the core out, and at the same time, an injection channel 16 is provided on one side of the cavity 11, and air is input to the second vent hole 15 through the air delivery groove 13 to blow out the injection mold on the cavity 11.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold for an automobile sealing cap, characterized in that: The invention comprises an injection mold (1), an injection mold (2), a demoulding assembly and an air inlet assembly. A connecting and docking assembly is provided between the injection mold (1) and the injection mold (2). The connecting and docking assembly comprises four docking cavities (12), four guide pillars (23) and four docking blocks (28). A placement groove (22) is provided in the injection mold (2). The demoulding assembly comprises a lifting platform (26) and a plurality of ejector rods (261). The lower end of the injection mold (1) is symmetrically provided with a plurality of cavities (12). 1), a plurality of cores (21) are symmetrically arranged at the upper end of the lower injection mold (2), the plurality of cores (21) are plugged into the plurality of cavities (11), the plurality of air intake components include an air delivery groove (13), the air delivery groove (13) is connected to the four docking cavities (12), a gas storage cavity (27) is provided in the lifting platform (26), the lifting platform (26) is located in the placement groove (22), and the gas storage cavity (27) is connected to the four docking cavities (12).

2. The injection mold for an automobile sealing cap according to claim 1, characterized in that: A first vent hole (121) is provided at the center of each of the four docking chambers (12), and one side of the first vent hole (121) is connected to the air delivery groove (13).

3. The injection mold for an automobile sealing cap according to claim 2, characterized in that: The injection molding lower mold (2) is symmetrically provided with four docking blocks (28) on one side close to the injection molding upper mold (1); the four docking blocks (28) and the four docking cavities (12) are all conical structures; the four docking blocks (28) are respectively and vertically movably plugged into the four guide pillars (23); the centers of the four guide pillars (23) are each provided with an air inlet groove (231); one side of the air inlet groove (231) is connected to the air conveying groove (13) through a first vent hole (121); the injection molding lower mold (2) is provided with a lifting groove below the four docking blocks (28); the lower ends of the four guide pillars (23) are plugged into the lifting groove and horizontally A lifting block (25) is provided, and a small-diameter spring (201) is provided at the lower end of each of the four lifting blocks (25). A connecting rod (24) is fixedly connected to one end of the lifting block (25). An air inlet groove (241) is provided inside the connecting rod (24), and the air inlet groove (241) is connected to an air inlet groove (231). A large-diameter spring (202) is provided at the center of the lower end of the lifting platform (26). A plurality of push rods (261) are provided on the upper side of the lifting platform (26). A gas storage chamber (27) is provided inside the lifting platform (26), and the gas storage chamber (27) is connected to the air inlet groove (241).

4. The injection mold for an automobile sealing cap according to claim 3, characterized in that: A second gas introduction groove (262) is provided inside the plurality of push rods (261), and one side of the second gas introduction groove (262) is connected to the gas storage chamber (27).

5. The injection mold for an automobile sealing cap according to claim 4, characterized in that: A diverter groove is provided in the core (21), and first small vents (212) are provided on both sides of the diverter groove and connected to the cavity (11). A plurality of push rods (261) are vertically movable and penetrate the center of the plurality of cores (21). The upper ends of the plurality of push rods (261) penetrate the plurality of cores (21) and are flush with the upper ends of the plurality of cores (21). A plurality of push rods (261) are placed in the diverter groove and connected to the second gas inlet groove (262) and are provided with a plurality of second small vents (213).

6. The injection mold for an automobile sealing cap according to claim 5, characterized in that: A second vent hole (15) is provided on the inner side of the mold cavity (11) near the ejector pin (261); a plurality of air dispersion grooves (14) are horizontally provided in the injection upper mold (1) and connected to the air conveying groove (13); the upper ends of the plurality of second vent holes (15) are respectively connected to the plurality of air dispersion grooves (14); and an injection channel (16) is provided on one side of the mold cavity (11).

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