Precise mold closing mechanism of automobile exterior trimming part injection mold

Abstract

The utility model discloses a precise mold closing mechanism of an automobile exterior trimming part injection mold, which comprises a bottom plate, a displacement groove is formed in the surface of the bottom plate in a penetrating manner, two displacement blocks are connected in the displacement groove in a sliding manner, the tops of the two displacement blocks are both fixedly connected with transverse plates, and the tops of the two transverse plates are both fixedly connected with fixed plates. A clamping assembly is arranged on one side of the fixing plate, two mounting plates are fixedly connected to the bottom of the bottom plate, a displacement assembly is arranged between the two mounting plates, a first mold is arranged on the top of one transverse plate, a second mold is arranged on the top of the other transverse plate, and injection molding openings are formed in the tops of the first mold and the second mold. The utility model aims to solve the problems that when the injection mold is closed, two parts of the injection mold are positioned only through a guide pillar, so that the injection mold is easy to generate a certain amount of deviation in the mold closing process due to the positioning mode, the mold closing error causes the error of the produced product, and the production precision is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a precision mold clamping mechanism for an injection mold of an automobile exterior decoration part. Background Art

[0002] Injection mold is a mold production method often used in mold production. Injection mold mainly connects two molds together through a guide mechanism, and then injects the raw materials into the mold through an injection molding machine to form the mold.

[0003] When the injection mold is closed, the two parts of the injection mold are positioned only by guide pins. This positioning method makes it easy for the injection mold to have a certain amount of offset when the mold is closed. The closing error causes errors in the products produced, affecting the production accuracy. Utility Model Content

[0004] The purpose of the utility model is to provide a precision mold clamping mechanism for an injection mold of an automobile exterior trim part, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it includes a base plate, a displacement groove is opened through the surface of the base plate, two displacement blocks are slidably connected inside the displacement groove, the tops of the two displacement blocks are fixedly connected with a cross plate, the tops of the two cross plates are fixedly connected with a fixed plate, one side of the fixed plate is provided with a clamping assembly, the bottom of the base plate is fixedly connected with two mounting plates, a displacement assembly is arranged between the two mounting plates, a first mold is arranged at the top of one of the cross plates, a second mold is arranged at the top of the other cross plate, and injection ports are arranged at the tops of the first mold and the second mold.

[0006] As a further preferred embodiment of the present technical solution, the displacement assembly includes a bidirectional screw rod, which is rotatably connected between two mounting plates, wherein a motor is fixedly mounted on one side of one of the mounting plates, one end of the motor output shaft is fixedly connected to one end of the bidirectional screw rod, and a threaded groove is provided inside the displacement block and is threadably connected to the outer side of the bidirectional screw rod.

[0007] As a further preferred embodiment of the present technical solution, the displacement assembly further includes two vertical plates, the two vertical plates are fixedly connected to the top of the bottom plate, a sliding rod is fixedly connected between the two vertical plates, and the interior of the displacement block is movably sleeved with the outer side of the sliding rod.

[0008] As a further preferred embodiment of the present technical solution, the clamping assembly includes a guide rod, the guide rod is slidably connected to the inside of the fixed plate, and one end of the guide rod is fixedly connected to the clamping plate.

[0009] As a further preferred embodiment of the present technical solution, the clamping assembly further comprises a threaded rod, the threaded rod is threadedly connected to the interior of the fixing plate, and one end of the threaded rod is rotatably connected to one side of the clamping plate.

[0010] As a further preferred embodiment of the present technical solution, positioning pins are equidistantly fixedly connected to the top of the horizontal plate, positioning grooves are equidistantly opened at the bottom of the first mold and the second mold, and the outer sides of the positioning pins are slidably connected to the inner walls of the positioning grooves.

[0011] As a further preferred embodiment of the present technical solution, a sealing groove is provided on one side of the first mold, and a sealing strip is provided on one side of the second mold.

[0012] The utility model provides a precision mold clamping mechanism for an automobile exterior trim injection mold, which has the following features:

[0013] Beneficial effects:

[0014] (1) The utility model positions the mold by means of a clamping assembly so that the mold will not deviate from the top of the horizontal plate, thereby increasing the stability of the mold and avoiding the problem of deviation during mold closing, thereby increasing the accuracy of the device.

[0015] (2) The utility model can make the mold move more smoothly through the displacement component, thereby avoiding the situation where the two parts of the injection mold are positioned only by the guide pillars. This positioning method makes it easy for the injection mold to produce a certain amount of offset when the mold is closed. The mold closing error causes the product produced to also have an error, affecting the production accuracy, thereby increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a side view stereoscopic structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model when viewed from above;

[0019] Figure 4 This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0020] In the figure: 1. bottom plate; 2. sealing strip; 3. first mold; 4. motor; 5. injection port; 6. second mold; 7. vertical plate; 8. slide bar; 9. fixed plate; 10. displacement groove; 11. sealing groove; 12. mounting plate; 13. displacement block; 14. bidirectional screw rod; 15. guide rod; 16. clamping plate; 17. threaded rod; 18. horizontal plate; 19. positioning groove; 20. positioning pin. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] The utility model provides a technical solution: Figure 1-Figure 4 As shown, in this embodiment, a precision clamping mechanism for an injection mold for an automobile exterior trim part comprises a base plate 1, a displacement groove 10 is provided through the surface of the base plate 1, two displacement blocks 13 are slidably connected inside the displacement groove 10, the tops of the two displacement blocks 13 are fixedly connected with a transverse plate 18, the tops of the two transverse plates 18 are fixedly connected with a fixed plate 9, one side of the fixed plate 9 is provided with a clamping assembly, the bottom of the base plate 1 is fixedly connected with two mounting plates 12, a displacement assembly is provided between the two mounting plates 12, a first mold 3 is provided on the top of one of the transverse plates 18, a second mold 6 is provided on the top of the other transverse plate 18, injection ports 5 are provided on the tops of the first mold 3 and the second mold 6, a sealing groove 11 is provided on one side of the first mold 3, and a sealing strip 2 is provided on one side of the second mold 6.

[0023] First, by placing the first mold 3 and the second mold 6 on the top of the horizontal plate 18 respectively, where the first mold 3 and the second mold 6 can be various molds, and the figure shows one of the molds, and then positioning them through the clamping assembly so that they will not be offset on the top of the horizontal plate 18, thereby increasing the stability of the mold closing, avoiding the problem of deviation during mold closing, and thus increasing the accuracy of the device, and then starting the operation of the displacement assembly to drive the two molds relatively close, so that the sealing strip 2 enters the interior of the sealing groove 11, which can increase the airtightness during injection molding and avoid leakage problems. Then, the displacement assembly can make the mold move more smoothly, thereby avoiding the two parts of the injection mold being positioned only by the guide column. This positioning method makes it easy for the injection mold to produce a certain amount of offset during mold closing. The mold closing error causes the product produced to also have an error, affecting the production accuracy, thereby increasing the practicality of the device.

[0024] like Figure 1-Figure 4 As shown, the displacement assembly includes a bidirectional screw rod 14, which is rotatably connected between two mounting plates 12, wherein a motor 4 is fixedly mounted on one side of one mounting plate 12, and one end of the output shaft of the motor 4 is fixedly connected to one end of the bidirectional screw rod 14, and a threaded groove is provided inside the displacement block 13 and is threadedly connected to the outer side of the bidirectional screw rod 14. The displacement assembly also includes two vertical plates 7, which are fixedly connected to the top of the base plate 1, and a slide rod 8 is fixedly connected between the two vertical plates 7, and the interior of the displacement block 13 is movably sleeved with the outer side of the slide rod 8.

[0025] When the mold is closed, the output shaft of the starting motor 4 is rotated to drive the bidirectional screw rod 14 to rotate and at the same time drive the two displacement blocks 13 to slide inside the displacement groove 10. The movement of the displacement block 13 is guided by the displacement groove 10 to avoid deviation. Then, when the displacement block 13 slides on the outside of the slide rod 8, the slide rod 8 makes the displacement block 13 move more smoothly, thereby increasing the stability during mold closing.

[0026] like Figure 1-Figure 4 As shown, the clamping assembly includes a guide rod 15, which is slidably connected to the inside of the fixed plate 9, and one end of the guide rod 15 is fixedly connected to the clamping plate 16. The clamping assembly also includes a threaded rod 17, which is threadedly connected to the inside of the fixed plate 9, and one end of the threaded rod 17 is rotatably connected to one side of the clamping plate 16. The top of the cross plate 18 is equidistantly fixedly connected with positioning pins 20, and the bottoms of the first mold 3 and the second mold 6 are equidistantly provided with positioning grooves 19, and the outer side of the positioning pin 20 is slidably connected to the inner wall of the positioning groove 19.

[0027] When installing the mold, the positioning groove 19 at the bottom of the first mold 3 is connected with the positioning pin 20 at the top of the cross plate 18 to preliminarily position the first mold 3. Then, the threaded rod 17 is rotated to drive the clamping plate 16 to approach the outside of the first mold 3, thereby driving the guide rod 15 to slide. The movement of the clamping plate 16 is limited by the guide rod 15. Then, an anti-slip pad is provided on the side of the clamping plate 16 close to the first mold 3 to further fix the position of the first mold 3.

[0028] The utility model provides a precision mold clamping mechanism for an injection mold for an automobile exterior trim, and the specific working principle is as follows: first, when installing the mold, the positioning groove 19 at the bottom of the first mold 3 is docked with the positioning pin 20 at the top of the cross plate 18, so that the position of the first mold 3 is preliminarily positioned, and then the threaded rod 17 is rotated to drive the clamping plate 16 to approach the outer side of the first mold 3, thereby driving the guide rod 15 to slide, and the movement of the clamping plate 16 is limited by the guide rod 15, and then a non-slip pad is provided on the side of the clamping plate 16 close to the first mold 3, so as to further fix the position of the first mold 3, and finally, when the mold is closed, the output shaft of the starting motor 4 is rotated to drive the bidirectional screw rod 14 to rotate and drive the two displacement blocks 13 to slide inside the displacement groove 10 at the same time, and the movement of the displacement block 13 is guided by the displacement groove 10 to avoid deviation in its movement, and then when the displacement block 13 slides on the outer side of the slide rod 8, the slide rod 8 makes the displacement block 13 move more smoothly, thereby increasing the stability during mold closing.

[0029] 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. A precision mold clamping mechanism for an injection mold for an automobile exterior trim, comprising a base plate (1), characterized in that: The surface of the bottom plate (1) is provided with a displacement groove (10) extending through the bottom plate, and two displacement blocks (13) are slidably connected inside the displacement groove (10). The tops of the two displacement blocks (13) are fixedly connected with a transverse plate (18), and the tops of the two transverse plates (18) are fixedly connected with a fixed plate (9). A clamping assembly is provided on one side of the fixed plate (9). The bottom of the bottom plate (1) is fixedly connected with two mounting plates (12), and a displacement assembly is provided between the two mounting plates (12). A first mold (3) is provided on the top of one of the transverse plates (18), and a second mold (6) is provided on the top of the other transverse plate (18). Injection ports (5) are provided on the tops of the first mold (3) and the second mold (6).

2. The precision mold clamping mechanism for an automobile exterior molding injection mold according to claim 1, characterized in that: The displacement assembly comprises a bidirectional screw rod (14), the bidirectional screw rod (14) being rotatably connected between two mounting plates (12), a motor (4) being fixedly mounted on one side of one of the mounting plates (12), one end of the output shaft of the motor (4) being fixedly connected to one end of the bidirectional screw rod (14), and a thread groove being provided inside the displacement block (13) and being threadably connected to the outer side of the bidirectional screw rod (14).

3. The precision mold clamping mechanism for an automobile exterior molding injection mold according to claim 1, characterized in that: The displacement assembly further comprises two vertical plates (7), the two vertical plates (7) are fixedly connected to the top of the bottom plate (1), a sliding rod (8) is fixedly connected between the two vertical plates (7), and the interior of the displacement block (13) is movably sleeved with the outer side of the sliding rod (8).

4. The precision mold clamping mechanism for an automobile exterior molding injection mold according to claim 1, characterized in that: The clamping assembly comprises a guide rod (15), the guide rod (15) is slidably connected inside the fixing plate (9), and one end of the guide rod (15) is fixedly connected to a clamping plate (16).

5. The precision mold clamping mechanism for an automobile exterior molding injection mold according to claim 4, characterized in that: The clamping assembly further comprises a threaded rod (17), wherein the threaded rod (17) is threadedly connected to the interior of the fixing plate (9), and one end of the threaded rod (17) is rotatably connected to one side of the clamping plate (16).

6. The precision mold clamping mechanism for an automobile exterior molding injection mold according to claim 1, characterized in that: The top of the transverse plate (18) is fixedly connected with positioning pins (20) at equal intervals, and the bottoms of the first mold (3) and the second mold (6) are provided with positioning grooves (19) at equal intervals, and the outer sides of the positioning pins (20) are slidably connected with the inner walls of the positioning grooves (19).

7. The precision mold clamping mechanism for an automobile exterior molding injection mold according to claim 1, characterized in that: A sealing groove (11) is provided on one side of the first mold (3), and a sealing strip (2) is provided on one side of the second mold (6).

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