Accurate positioning device for assisting injection molding

Abstract

The accurate positioning device comprises a T-shaped plate, a first mounting plate is mounted on the T-shaped plate, positioning columns are mounted on the upper portion and the lower portion of the first mounting plate respectively, a mold is clamped between the two positioning columns, and an auxiliary positioning mechanism is arranged on the front side of the T-shaped plate. The auxiliary positioning mechanism is arranged, the position of the outer mold in the front-back direction is adjusted through the electric push rod, the position of the outer mold in the left-right direction is adjusted through the hydraulic cylinder, and the position adjustment in the vertical direction is completed through the driving assembly, so that the outer mold and the inner mold are centered and aligned, and errors caused by abrasion of a positioning column to outer mold fixing are reduced; and the injection molding accuracy of the television shell is further improved.

Description

Technical Field

[0001] The utility model relates to the field of television shell injection molding, in particular to an accurate positioning device for auxiliary injection molding. Background Art

[0002] A television is an electronic device used to receive and display television signals and is widely used. In the television manufacturing process, injection molding of the television casing is an important step. The plastic material is heated to a molten state using injection molding technology, injected into the mold cavity under high pressure, and then cooled and solidified to form the television casing. The mold is installed on the injection molding equipment and positioned by positioning columns. Frequent replacement of the outer mold will cause the positioning columns to wear, which will cause errors in the mold installation and affect the accuracy of the TV casing injection molding.

[0003] In view of the above problems, an accurate positioning device for auxiliary injection molding is now developed. Utility Model Content

[0004] In order to overcome the shortcomings of installing the mold on the injection molding equipment and positioning the mold by positioning pillars, frequent replacement of the outer mold will cause wear of the positioning pillars, resulting in errors in the mold installation, and thus affecting the accuracy of the injection molding of the TV shell, the utility model provides an accurate positioning device for auxiliary injection molding.

[0005] The technical solution of the present utility model is: an accurate positioning device for auxiliary injection molding, comprising a T-shaped plate, a first mounting plate being mounted on the T-shaped plate, positioning posts being mounted on the upper and lower parts of the first mounting plate, a mold being clamped between the two positioning posts, an auxiliary positioning mechanism being arranged on the front side of the T-shaped plate, the auxiliary positioning mechanism comprising an electric push rod, the upper and lower parts of the T-shaped plate being mounted with the electric push rod, the telescopic ends of the electric push rods being connected to the first positioning plate, the first positioning plate being contact-connected to the mold, first guide posts being mounted on the front sides of the left and right parts of the T-shaped plate, second guide posts being mounted on the front sides of the middle part of the T-shaped plate, a drive assembly being mounted on the second guide post, the The driving assembly includes a mounting frame, a dual-axis motor and a screw rod. The mounting frame is mounted on the second guide column, and the dual-axis motor is mounted on the mounting frame. The output shafts at the upper and lower ends of the dual-axis motor are connected with the screw rods, and the screw rods are threadedly connected to the adjacent first positioning plates. The screw rods are rotatably connected to the adjacent first guide columns. A third guide column is connected between the two first guide columns on the left side, and the third guide column is slidably connected to the first positioning plate. Hydraulic cylinders are installed on the inner sides of the second guide columns, and the telescopic ends of the hydraulic cylinders are connected to the second positioning plates. The second positioning plates are contact-connected to the mold, and the upper and lower parts of the second positioning plates are slidably connected to extension plates.

[0006] In addition, it is particularly preferred that an auxiliary support mechanism is also included, the auxiliary support mechanism includes a second mounting plate, two second mounting plates are installed on the front side of the T-shaped plate, two dampers are connected to the second mounting plates, springs are connected inside the dampers, rubber pads are connected between the two adjacent dampers, two guide members are connected to the second mounting plates, and the guide members are connected to the adjacent rubber pads.

[0007] In addition, it is particularly preferred that a limit block is provided on the outer side of the extension plate.

[0008] In addition, it is particularly preferred that the extension plates are all rotatably connected to rollers, and the rollers are all rotatably connected to the adjacent first positioning plates.

[0009] In addition, it is particularly preferred that the second mounting plates are each provided with triangular ribs for reinforcement.

[0010] In addition, it is particularly preferred that the upper portion of the rubber pad has an arc-shaped structure.

[0011] By adopting the above technical solution, the beneficial effects of the utility model are:

[0012] 1. The utility model is provided with an auxiliary positioning mechanism, which adjusts the position of the outer mold in the front and rear directions by an electric push rod, adjusts the position of the outer mold in the left and right directions by a hydraulic cylinder, and completes the vertical position adjustment by a drive component, so that the outer mold and the inner mold are aligned in the center, thereby reducing the error caused by the wear of the positioning column on the fixation of the outer mold, thereby improving the accuracy of the injection molding of the TV shell.

[0013] 2. The utility model is provided with an auxiliary support mechanism, and the second mounting plate plays an auxiliary role in supporting the mold. The rubber pad is used to reduce the force on the second mounting plate. At the same time, the damper and the spring can disperse the force on the rubber pad, thereby making the device more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the auxiliary positioning mechanism of the utility model.

[0016] Figure 3 It is a partial cross-sectional three-dimensional structural diagram of the auxiliary positioning mechanism of the utility model.

[0017] Figure 4 It is a partial three-dimensional structural diagram of the auxiliary positioning mechanism of the utility model.

[0018] Figure 5It is a partial cross-sectional three-dimensional structural diagram of the auxiliary support mechanism of the utility model.

[0019] In the accompanying drawings: 1-T-shaped plate, 2-first mounting plate, 3-positioning column, 4-mold, 5-auxiliary positioning mechanism, 51-electric push rod, 52-first positioning plate, 53-first guide column, 54-second guide column, 55-driving assembly, 56-third guide column, 57-hydraulic cylinder, 58-second positioning plate, 59-extension plate, 6-auxiliary support mechanism, 61-second mounting plate, 62-rubber pad, 63-damper, 64-spring, 65-guide member. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] Example 1

[0022] An accurate positioning device for auxiliary injection molding, such as Figures 1-4 As shown, it includes a T-shaped plate 1, a first mounting plate 2 is installed on the T-shaped plate 1, positioning columns 3 are installed on the upper and lower parts of the first mounting plate 2, a mold 4 is clamped between the two positioning columns 3, an auxiliary positioning mechanism 5 is provided on the front side of the T-shaped plate 1, the auxiliary positioning mechanism 5 includes an electric push rod 51, the upper and lower parts of the T-shaped plate 1 are both installed with electric push rods 51, the telescopic ends of the electric push rods 51 are connected with first positioning plates 52, the first positioning plates 52 are contact-connected with the mold 4, the left and right front sides of the T-shaped plate 1 are both installed with first guide columns 53 that are symmetrical in upper and lower directions, the front side of the middle part of the T-shaped plate 1 is both installed with second guide columns 54 that are symmetrical in left and right directions, a driving assembly 55 is installed on the second guide column 54, the driving assembly 55 includes a mounting frame, a dual-axis motor and a screw rod, and the second guide column 54 is installed with A mounting frame is installed on the mounting frame. A double-axis motor is connected to the output shafts at the upper and lower ends of the double-axis motor. The screw is threadedly connected to the adjacent first positioning plate 52, and the screw is rotatably connected to the adjacent first guide column 53. A third guide column 56 is connected between the two first guide columns 53 on the left side. The third guide column 56 is slidingly connected to the first positioning plate 52. A hydraulic cylinder 57 is installed on the inner side of the second guide column 54. The telescopic end of the hydraulic cylinder 57 is connected to the second positioning plate 58. The second positioning plate 58 is contact-connected to the mold 4. The upper and lower parts of the second positioning plate 58 are slidably connected to the extension plate 59. The outer side of the extension plate 59 is provided with a limit block. The extension plate 59 is rotatably connected to the roller, and the roller is rotatably connected to the adjacent first positioning plate 52.

[0023] It should be noted that a television is an electronic device used to receive and display television signals and is widely used. In the television manufacturing process, the injection molding of the television casing is an important link. After the plastic material is heated to a molten state using injection molding technology, it is injected into the mold cavity 4 by high pressure, and then cooled and solidified to finally form the television casing. The mold 4 is installed on the injection molding equipment and positioned by the positioning column 3. Frequent replacement of the outer mold will cause the positioning column 3 to wear, which will cause errors in the installation of the mold 4, thereby affecting the accuracy of the television casing injection molding. The auxiliary positioning mechanism 5 can be used to slightly adjust the position of the outer mold to make the mold 4 installation more accurate, thereby improving the accuracy of the television casing production. First, the outer mold is fixed by the positioning column 3, and then the electric push rod 51 is turned on. The telescopic end of the electric push rod 51 will drive the adjacent first positioning plate 5 2 moves forward and backward under the guidance of the first guide column 53, thereby adjusting the position of the outer mold in the forward and backward directions. Then, the dual-axis motor is turned on, and the upper and lower output shafts of the dual-axis motor drive the screw to rotate, thereby driving the first positioning plate 52 to move up and down, so that the outer mold moves in the vertical direction, and at the same time, the extension plate 59 is stretched to the appropriate position, thereby completing the vertical position adjustment of the outer mold. Then, the left and right hydraulic cylinders 57 are turned on, and the telescopic ends of the hydraulic cylinders 57 drive the second positioning plates 58 to move, driving the extension plate 59 to move in the left and right directions, thereby driving the outer mold to move in the left and right directions, thereby completing the left and right position adjustment of the outer mold. In this way, the position adjustment of the outer mold in the forward and backward directions, left and right directions, and vertical directions can be adjusted, so that the outer mold and the inner mold are aligned in the center, thereby reducing the error caused by the wear of the positioning column 3 on the fixation of the outer mold, thereby improving the accuracy of the injection molding of the TV shell.

[0024] Example 2

[0025] On the basis of Example 1, Figure 1 and Figure 5 As shown, an auxiliary support mechanism 6 is also included, and the auxiliary support mechanism 6 includes a second mounting plate 61. Two second mounting plates 61 are installed on the front side of the T-shaped plate 1. The second mounting plates 61 are provided with triangular ribs for reinforcement. Two dampers 63 are connected to the second mounting plates 61. Springs 64 are connected inside the dampers 63. Rubber pads 62 are connected between the two adjacent dampers 63. The upper part of the rubber pads 62 has an arc-shaped structure. Two guide members 65 are connected to the second mounting plates 61. The guide members 65 are connected to adjacent rubber pads 62.

[0026] It should be noted that, since the mold 4 is heavy, the auxiliary support mechanism 6 can be used to support the mold 4, thereby enhancing the overall stability of the device. The second mounting plate 61 plays an auxiliary role in supporting the mold 4. The mold 4 squeezes the first positioning plate 52 on the lower side, so that the second mounting plate 61 is squeezed. The rubber pad 62 can reduce the force on the second mounting plate 61. At the same time, the damper 63 and the spring 64 can disperse the force on the rubber pad 62, thereby making the device more stable.

[0027] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art from this disclosure that various changes or modifications may be made to the present invention without departing from the principles and spirit of the present invention as defined in the claims. Therefore, the detailed description of the disclosed embodiments is intended to illustrate rather than limit the present invention, which shall be defined by the claims.

Claims

1. An accurate positioning device for auxiliary injection molding, characterized in that: The invention comprises a T-shaped plate (1), wherein a first mounting plate (2) is mounted on the T-shaped plate (1), positioning columns (3) are mounted on the upper and lower parts of the first mounting plate (2), a mold (4) is clamped between the two positioning columns (3), an auxiliary positioning mechanism (5) is arranged on the front side of the T-shaped plate (1), the auxiliary positioning mechanism (5) comprises an electric push rod (51), the upper and lower parts of the T-shaped plate (1) are mounted with the electric push rod (51), the telescopic end of the electric push rod (51) is connected with a first positioning plate (52), the first positioning plate (52) is contact-connected with the mold (4), the front sides of the left and right parts of the T-shaped plate (1) are mounted with a first guide column (53) which is symmetrical in upper and lower directions, the front side of the middle part of the T-shaped plate (1) is mounted with a second guide column (54) which is symmetrical in left and right directions, the second guide column (54) is mounted with a driving component (55), the driving component ( 55) includes a mounting frame, a double-axis motor and a screw rod, the mounting frame is mounted on the second guide column (54), the double-axis motor is mounted on the mounting frame, the screw rods are connected to the output shafts at the upper and lower ends of the double-axis motor, the screw rods are threadedly connected to the adjacent first positioning plates (52), the screw rods are rotatably connected to the adjacent first guide columns (53), a third guide column (56) is connected between the two first guide columns (53) on the left, the third guide column (56) is slidably connected to the first positioning plate (52), a hydraulic cylinder (57) is mounted on the inner side of the second guide column (54), the telescopic end of the hydraulic cylinder (57) is connected to the second positioning plate (58), the second positioning plate (58) is contact-connected to the mold (4), and the upper and lower parts of the second positioning plate (58) are slidably connected to the extension plate (59).

2. The accurate positioning device for auxiliary injection molding according to claim 1, characterized in that: The invention also includes an auxiliary support mechanism (6), wherein the auxiliary support mechanism (6) includes a second mounting plate (61), two second mounting plates (61) are mounted on the front side of the T-shaped plate (1), two dampers (63) are connected to the second mounting plates (61), springs (64) are connected inside the dampers (63), rubber pads (62) are connected between two adjacent dampers (63), and two guide members (65) are connected to the second mounting plates (61), and the guide members (65) are connected to adjacent rubber pads (62).

3. The accurate positioning device for auxiliary injection molding according to claim 1, characterized in that: The outer sides of the extension plates (59) are each provided with a limiting block.

4. The accurate positioning device for auxiliary injection molding according to claim 1, characterized in that: The extension plates (59) are all rotatably connected to rollers, and the rollers are all rotatably connected to the adjacent first positioning plates (52).

5. The accurate positioning device for auxiliary injection molding according to claim 2, characterized in that: The second mounting plates (61) are each provided with triangular ribs for reinforcement.

6. The accurate positioning device for auxiliary injection molding according to claim 2, characterized in that: The upper portion of the rubber pad (62) has an arc-shaped structure.

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