Automobile assembly precision injection mold

Abstract

The utility model provides an automobile assembly precision injection mold relates to the technical field of automobile injection molding, and this device includes box, shell and connecting plate, the bottom fixed connection of lift plate has pressure module, is away from the reciprocating screw rod and is located the bottom fixed connection of connecting plate has guide rod, one end fixed connection in the top of shell of guide rod, the bottom center position fixed connection of connecting plate has first air cylinder, fixed connection has vent pipe through the outer wall, the inside of shell is equipped with hole, the inner bottom fixed connection of hole has second air cylinder, one end fixed connection with the outer wall of second air cylinder of vent pipe, through transportation subassembly, the plastic particle is transported to pressure module, through the cooling assembly to the liquid plastic cooling, through the stripping assembly to the product of processing good stripping, greatly reduced the risk of scalding of staff to the liquid plastic transportation, reduced the stripping difficulty condition simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of automotive injection molding technology, specifically to a precision injection mold device for automotive assemblies. Background Technology

[0002] Injection molds are specialized tools used in the plastic injection molding process. They are used to inject molten plastic into a mold cavity, which then cools and solidifies to obtain the finished product. They are widely used in the production of plastic parts and products, and are particularly suitable for mass production of products with complex geometries and high precision requirements, such as automotive parts, electronic casings, home appliances, and toys.

[0003] While current automotive precision injection molds can effectively perform injection molding of automotive assemblies, they do not provide convenient demolding of the molded parts during actual use. Often, the parts stick to the bottom of the mold shell. In addition, workers need to heat the plastic granules to a liquid state before injecting the liquid plastic into the mold, which not only poses a risk of burns but also increases the workload of the workers. Utility Model Content

[0004] The purpose of this invention is to provide a precision injection mold device for automotive assemblies to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automotive assembly precision injection molding device includes a housing, an outer shell, and a connecting plate. The housing is equipped with a transport assembly for melting and transporting plastic granules, and the outer shell is equipped with a demolding assembly for demolding the injection molded parts. The outer wall of the demolding assembly is equipped with a cooling assembly for cooling the mold.

[0007] The demolding assembly includes a second motor fixedly mounted on the top of a connecting plate. A reciprocating lead screw is fixedly connected to the drive end of the second motor. A lifting plate is threaded onto the outer wall of the reciprocating lead screw. A pressure module is fixedly connected to the bottom of the lifting plate. A guide rod is fixedly connected to the bottom of the connecting plate away from the reciprocating lead screw. One end of the guide rod is fixedly connected to the top of the outer shell. A first cylinder is fixedly connected to the center of the bottom of the connecting plate. A vent pipe is fixedly connected to the outer wall of the first cylinder. A hole is opened inside the outer shell. A second cylinder is fixedly connected to the bottom of the hole. One end of the vent pipe is fixedly connected to the outer wall of the second cylinder. The demolding assembly can effectively demold the injection-molded product, greatly reducing the difficulty of the workers' work.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: both the first cylinder and the second cylinder have pistons slidably connected inside, and one end of each piston is fixedly connected to a push rod.

[0010] In one alternative: one end of the push rod is fixedly connected to a top plate, the top of the top plate is fixedly connected to a plurality of ejector pins, the outer walls of the plurality of ejector pins are slidably connected to a pressure mold shell, and two through holes are opened on one side of the pressure mold shell.

[0011] In one alternative embodiment: the transport assembly includes a feed inlet fixedly installed on the top of the housing; a first motor is fixedly connected to one side of the housing; a rotating column is fixedly connected to the drive end of the first motor; a spiral conveyor blade is fixedly connected to the outer wall of the rotating column; a transport shell is fixedly connected to the inner side wall of the housing; a heating tube is fixedly connected to the outer wall of the transport shell; two guide pipes are fixedly connected to one side of the housing; and two through holes are fixedly connected to the two guide pipes. The transport assembly effectively melts the plastic granules and transports the molten plastic liquid into the molding shell for processing.

[0012] In one alternative: one end of the feed inlet is connected through to the transport shell, and the transport shell is fitted onto the outer wall of the spiral conveyor blade.

[0013] In one alternative embodiment: the cooling assembly includes a cooling tank fixedly installed on the top of the outer shell, a liquid pump is installed inside the cooling tank, and a through pipe is fixedly connected to the drive end of the liquid pump; the cooling assembly can effectively cool the liquid plastic during the molding process and accelerate the cooling function of the liquid plastic.

[0014] In one alternative: one end of the through pipe passes through one end of the cooling tank, and the cooling tank is fixedly connected to the other end of the through pipe; the through pipe is evenly installed on the outer wall of the molding shell.

[0015] In one alternative: the outer shell is fixedly installed on one side of the box, and support legs are fixedly connected to the top four sides of the outer shell. The connecting plate is fixedly connected to the top of the four support legs; the cooperation between the support legs and the connecting plate improves the function of fixing the demolding component.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. In this utility model, the piston in the first cylinder moves by the movement of the lifting plate, which in turn moves the push rod. Through the cooperation between the first cylinder and the second cylinder, the gas inside the first cylinder enters the bottom of the second cylinder, which simultaneously pushes the piston and push rod inside the second cylinder. The push rod moves the top plate, which in turn moves the ejector pin, thus achieving the function of demolding the product that has been processed inside the mold shell.

[0018] 2. In this utility model, the first motor drives the rotating column to rotate, which in turn drives the spiral conveyor blades to rotate. The spiral conveyor blades carry the plastic granules, which are then melted by the heating tube. The liquefied plastic is then transported into the molding shell through two guide tubes, thus achieving the functions of melting and guiding the plastic granules and effectively avoiding unnecessary damage to workers during the transportation of liquid plastic granules. Attached Figure Description

[0019] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a precision injection mold device for automotive assemblies;

[0020] Figure 2 This utility model provides a cross-sectional structural schematic diagram of a precision injection mold device for automotive assemblies;

[0021] Figure 3 This utility model presents a schematic diagram of the cooling component structure of a precision injection mold device for automotive assemblies.

[0022] Legend:

[0023] 1. Housing; 2. Transport Components; 201. First Motor; 202. Feed Inlet; 203. Transport Shell; 204. Rotating Column; 205. Spiral Conveyor Blade; 206. Heating Element; 207. Guide Pipe; 3. Cooling Components; 301. Cooling Tank; 302. Liquid Pump; 303. Through Pipe; 4. Demolding Components; 401. Second Motor; 402. Reciprocating Screw; 403. Guide Rod; 404. Lifting Plate; 405. Pressing Module; 406. First Cylinder; 407. Vent Pipe; 408. Second Cylinder; 409. Top Plate; 410. Ejector Pin; 411. Pressing Mold Shell; 5. Outer Shell; 6. Support Leg; 7. Connecting Plate. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1

[0027] Please see Figures 1-3 This utility model provides a technical solution: a precision injection molding device for automotive assemblies, including a housing 1, an outer shell 5 and a connecting plate 7. The housing 1 is provided with a transport component 2 for melting and transporting plastic particles, and the outer shell 5 is provided with a demolding component 4 for demolding the injection molded parts. The outer wall of the demolding component 4 is provided with a cooling component 3 for cooling the mold.

[0028] The outer shell 5 is fixedly installed on one side of the box 1. Support legs 6 are fixedly connected to the top of the outer shell 5 around the four sides. The connecting plate 7 is fixedly connected to the top of the four support legs 6. Through the cooperation between the support legs 6 and the connecting plate 7, the demolding component 4 can be better supported.

[0029] Please see Figures 2-3 The demolding assembly 4 includes a second motor 401 fixedly installed on the top of the connecting plate 7. The drive end of the second motor 401 is fixedly connected to a reciprocating screw 402. The outer wall of the reciprocating screw 402 is threadedly connected to a lifting plate 404. The bottom of the lifting plate 404 is fixedly connected to a pressure module 405. A guide rod 403 is fixedly connected to the bottom of the connecting plate 7 away from the reciprocating screw 402. One end of the guide rod 403 is fixedly connected to the top of the outer shell 5. A first cylinder 406 is fixedly connected to the bottom center of the connecting plate 7. A vent pipe 407 is fixedly connected through the outer wall of the first cylinder 406. A hole is opened inside the outer shell 5. A second cylinder 408 is fixedly connected to the bottom of the hole. One end of the vent pipe 407 is fixedly connected to the outer wall of the second cylinder 408.

[0030] Both the first cylinder 406 and the second cylinder 408 have pistons that slide inside them, and one end of each piston is fixedly connected to a push rod.

[0031] One end of the push rod is fixedly connected to a top plate 409, and a number of ejector pins 410 are fixedly connected to the top of the top plate 409. A mold shell 411 is slidably connected to the outer wall of the ejector pins 410, and two through holes are opened on one side of the mold shell 411.

[0032] After the liquid plastic has cooled, the second motor 401 is started, which drives the reciprocating screw 402 to rotate. The reciprocating screw 402 drives the lifting plate 404 to move. The guide rod 403 limits the lifting plate 404, causing it to move up and down. The lifting plate 404 drives the pressing module 405 to move, and at the same time, it drives the push rod of the first cylinder 406 to move. The push rod of the first cylinder 406 drives the piston to move, and the piston pushes the gas inside the first cylinder 406 into the second cylinder 408. The gas drives the piston and push rod in the second cylinder 408 to move, and the push rod drives the top plate 409 to move. The top plate 409 drives several ejector pins 410 to move, thereby ejecting the finished product from the molding shell 411 for easy picking by the staff. After picking, the second motor 401 is started, and the process is repeated to reset.

[0033] Example 2

[0034] Please see Figure 2 The transport component 2 includes a feed inlet 202 fixedly installed on the top of the box 1, a first motor 201 fixedly connected to one side of the box 1, a rotating column 204 fixedly connected to the drive end of the first motor 201, a spiral conveying blade 205 fixedly connected to the outer wall of the rotating column 204, a transport shell 203 fixedly connected to the inner side wall of the box 1, a heating tube 206 fixedly connected to the outer wall of the transport shell 203, and two guide pipes 207 fixedly connected to one side of the box 1, with two through holes fixedly connected to the two guide pipes 207.

[0035] One end of the feed inlet 202 is connected to the transport shell 203, and the transport shell 203 is sleeved on the outer wall of the spiral conveyor blade 205.

[0036] When liquefying and transporting plastic granules is required, the plastic granules to be processed are placed into the feed inlet 202, and the first motor 201 is started. The first motor 201 drives the rotating column 204 to rotate, which in turn drives the spiral conveyor blade 205 to rotate. The spiral conveyor blade 205 carries the plastic granules. At this time, the heating tube 206 is started, and high temperature is released through the heating tube 206 to heat the plastic granules until they melt. The liquefied plastic granules are transported to one end of the transport shell 203 through the spiral conveyor blade 205. The liquefied plastic is then conveyed into the compression mold shell 411 through the two guide tubes 207. When the appropriate amount is reached, the first motor 201 is turned off.

[0037] Example 4

[0038] Please see Figure 3 The cooling component 3 includes a cooling tank 301 fixedly installed on the top of the outer shell 5. A liquid pump 302 is installed inside the cooling tank 301, and a pipe 303 is fixedly connected to the drive end of the liquid pump 302.

[0039] One end of the through pipe 303 passes through one end of the cooling tank 301, and the other end of the cooling tank 301 is fixedly connected to the other end of the through pipe 303. The through pipe 303 is evenly installed on the outer wall of the molding shell 411.

[0040] When cooling the liquid plastic inside the molding shell 411, the pump 302 is started to extract the coolant from the cooling tank 301 and deliver it to the pipe 303. By setting heat-conducting fins on the outer wall of the molding shell 411, the temperature inside the liquid plastic is discharged. The cooling function of the liquid plastic is achieved through the pipe 303 and the coolant. At the same time, cooling fins are installed on the outer wall of the cooling tank 301 to accelerate the cooling function of the coolant.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A precision injection mold for automotive assemblies, comprising a housing (1), an outer shell (5), and a connecting plate (7), characterized in that: The box (1) is equipped with a transport component (2) for melting and transporting plastic particles, and the outer shell (5) is equipped with a demolding component (4) for demolding injection molded parts. The outer wall of the demolding component (4) is equipped with a cooling component (3) for cooling the mold. The demolding assembly (4) includes a second motor (401) fixedly installed on the top of the connecting plate (7). The driving end of the second motor (401) is fixedly connected to a reciprocating screw (402). The outer wall of the reciprocating screw (402) is threadedly connected to a lifting plate (404). The bottom of the lifting plate (404) is fixedly connected to a pressure module (405). A guide rod (403) is fixedly connected to the bottom of the connecting plate (7) away from the reciprocating screw (402). One end of the guide rod (403) is fixedly connected to the top of the outer shell (5). A first cylinder (406) is fixedly connected to the center of the bottom of the connecting plate (7). A vent pipe (407) is fixedly connected through the outer wall of the first cylinder (406). A hole is opened inside the outer shell (5). A second cylinder (408) is fixedly connected to the bottom of the hole. One end of the vent pipe (407) is fixedly connected to the outer wall of the second cylinder (408).

2. The precision injection mold for automotive assemblies according to claim 1, characterized in that: Both the first cylinder (406) and the second cylinder (408) have pistons slidably connected inside, and one end of each piston is fixedly connected to a push rod.

3. The precision injection mold for automotive assemblies according to claim 2, characterized in that: One end of the push rod is fixedly connected to a top plate (409), and a number of ejector pins (410) are fixedly connected to the top of the top plate (409). A mold shell (411) is slidably connected to the outer wall of the ejector pins (410), and two through holes are opened on one side of the mold shell (411).

4. The precision injection mold for automotive assemblies according to claim 3, characterized in that: The transport assembly (2) includes a feed inlet (202) fixedly installed on the top of the box (1), a first motor (201) fixedly connected to one side of the box (1), a rotating column (204) fixedly connected to the drive end of the first motor (201), a spiral conveying blade (205) fixedly connected to the outer wall of the rotating column (204), a transport shell (203) fixedly connected to the inner side wall of the box (1), a heating tube (206) fixedly connected to the outer wall of the transport shell (203), and two guide pipes (207) fixedly connected through one side of the box (1), and the two through holes are fixedly connected to the two guide pipes (207).

5. The precision injection mold for automotive assemblies according to claim 4, characterized in that: One end of the feed inlet (202) is connected through the transport shell (203), and the transport shell (203) is sleeved on the outer wall of the spiral conveyor blade (205).

6. The precision injection mold for automotive assemblies according to claim 1, characterized in that: The cooling assembly (3) includes a cooling tank (301) fixedly installed on the top of the outer shell (5). A liquid pump (302) is installed inside the cooling tank (301), and a connecting pipe (303) is fixedly connected to the drive end of the liquid pump (302).

7. The precision injection mold for automotive assemblies according to claim 6, characterized in that: One end of the through pipe (303) passes through one end of the cooling tank (301), and the other end of the cooling tank (301) is fixedly connected to the through pipe (303). The through pipe (303) is evenly installed on the outer wall of the molding shell (411).

8. The precision injection mold for automotive assemblies according to claim 6, characterized in that: The outer shell (5) is fixedly installed on one side of the box (1), and the top of the outer shell (5) is fixedly connected with support legs (6) on all four sides. The connecting plate (7) is fixedly connected to the top of the four support legs (6).

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