Demolding mechanism for automobile lampshade mold

Abstract

The utility model discloses a demolding mechanism for an automobile lampshade mold, relates to the technical field of mold demolding, and aims to solve the problems that most of the conventional automobile lampshade molds are ejected and demolded in an ejector pin manner, so that extrusion traces are easily caused on the surface of an automobile lampshade, and the product quality is easily unqualified. A lower die base is arranged below the upper die base, and a male die is arranged at the lower end of the upper die base. The first female die is arranged at the upper end of the lower die base, a second female die is arranged in the opposite direction of the first female die, and a forming cavity is formed between the first female die and the second female die; the moving seat is arranged on the lower surface of the second female die and connected with the second female die in a welded mode, a moving groove is formed in the upper surface of the lower die seat, the moving seat moves front and back along the moving groove, and positioning columns are arranged on the rear surfaces of the two ends of the second female die and connected with the second female die in a welded mode. And positioning grooves are formed in the two ends of the first female die.

Description

Technical Field

[0001] The utility model relates to the technical field of mold demoulding, in particular to a demoulding mechanism for an automobile lampshade mold. Background Art

[0002] The car lampshade is the protective cover of the car lighting. It is formed by a mold during production and then removed by demoulding.

[0003] For example, the Chinese authorized patent with announcement number CN205395040U (automobile lampshade mold demolding mechanism): includes a fixed mold and a movable mold, the movable mold is provided with a movable mold core for product molding and a push plate for ejecting the product, the push plate is provided with an ejector pin with one end fixed on the push plate and the other end abutting against the surface of the product, the left and right sides of the movable mold are provided with a first side drawer assembly, the front side of the movable mold is provided with a second side drawer assembly, the movable mold core includes a fixed insert and a movable insert, the fixed insert is provided with a guide rail, the movable insert is slidably connected to the guide rail, and a push rod for driving the movable insert is provided between the movable insert and the push plate.

[0004] However, most of the existing automobile lampshade molds are demoulded by ejecting pins, which easily causes extrusion marks on the surface of the automobile lampshade and easily leads to unqualified product quality; therefore, it does not meet the existing needs. In this regard, we propose a demoulding mechanism for automobile lampshade molds. Utility Model Content

[0005] The utility model aims to provide a demoulding mechanism for a car lampshade mold, so as to solve the problem in the above-mentioned background technology that most of the existing car lampshade molds are demoulded by ejectors, which easily causes extrusion marks on the surface of the car lampshade and easily leads to unqualified product quality.

[0006] To achieve the above object, the utility model provides the following technical solution: a demoulding mechanism for a car lampshade mold, comprising: an upper mold base, a lower mold base is arranged below the upper mold base, and a convex mold is arranged at the lower end of the upper mold base;

[0007] Also includes:

[0008] A first concave die, which is arranged at the upper end of the lower die base, a second concave die is arranged opposite to the first concave die, and a molding cavity is arranged between the first concave die and the second concave die;

[0009] The movable seat is arranged on the lower surface of the second concave die, and the movable seat is welded to the second concave die. The upper surface of the lower die seat is provided with a movable groove, and the movable seat moves forward and backward along the movable groove.

[0010] Preferably, positioning columns are provided on the rear surfaces of both ends of the second die, and the positioning columns are welded to the second die, and positioning grooves are provided inside both ends of the first die, and the positioning columns move along the positioning grooves.

[0011] Preferably, a limited rotation plate is provided at the front end of both sides of the second die, a rotation shaft is provided on the side surface of one end of the limited rotation plate, and the rotation shaft and the limited rotation plate are an integral structure.

[0012] Preferably, a ball bearing is provided on the outside of the rotating shaft, a mounting frame is provided on the outside of the ball bearing, a rotating groove is provided on the inside of the mounting frame, and the rotating shaft is rotatably connected to the mounting frame through the ball bearing, a fixing plate is provided on the side surface of one end of the mounting frame, and the fixing plate is threadedly connected to the lower mold base through an external bolt.

[0013] Preferably, a mounting plate is provided at one end of the rotating shaft, a threaded fastener is provided at one end of the mounting plate, and the mounting plate is rotatably connected to the rotating shaft via the threaded fastener.

[0014] Preferably, a pulling frame is provided on the front surface of the second die, and the pulling frame is welded to the second die, and a finger groove is provided on the surface of the pulling frame, and four finger grooves are provided.

[0015] Preferably, guide columns are provided at the corners of the lower die base, and a connecting frame is provided on the central upper surface of the upper die base.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model arranges a first die and a second die at the upper end of a lower die seat. After the first die and the second die are in contact, a limiting rotating plate is rotated. The limiting rotating plate is rotatably connected to a mounting frame via a rotating shaft through a ball bearing and rotates to the front end of the second die, thereby having a resisting effect on the second die to prevent self-movement, so that the first die and the second die are always kept in contact. Then, a molding operation is performed. After the molding is completed, the limiting rotating plate is rotated to both sides. When the second die loses its blocking force, the second die is pulled outward to separate the first die and the second die, so that demolding can be achieved. The entire die is divided into two parts, and the two parts can be separated. The existing ejection demolding is replaced by separation, and impact damage to the automobile lampshade is not caused, thereby improving safety and product quality.

[0018] By arranging positioning columns on the rear surfaces of both ends of the second die, and arranging positioning grooves inside both ends of the first die, the second die is pushed toward the first die. When pushed, the movable seat moves along the movable groove to play a guiding effect to avoid deviation, and the positioning columns move along the positioning grooves to position the connection between the first die and the second die, thereby improving the connection stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a left side structural schematic diagram of the position limiting rotating plate of the utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure between the limit rotating plate and the mounting frame of the utility model;

[0022] Figure 4 It is a schematic diagram of the top view of the connection structure between the first concave die and the second concave die of the utility model;

[0023] In the figure: 1. upper die seat; 2. lower die seat; 3. guide column; 4. connecting frame; 5. punch; 6. first die; 7. second die; 8. forming cavity; 9. pulling frame; 10. moving groove; 11. moving seat; 12. limited rotating plate; 13. mounting frame; 14. rotating shaft; 15. mounting plate; 16. threaded fastener; 17. fixing plate; 18. rotating groove; 19. ball bearing; 20. positioning groove; 21. positioning column; 22. finger groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-4 The utility model provides an embodiment: a demoulding mechanism for a car lampshade mold, comprising: an upper mold base 1, a lower mold base 2 is arranged below the upper mold base 1, and a punch 5 is arranged at the lower end of the upper mold base 1;

[0026] Also includes:

[0027] A first die 6 is arranged at the upper end of the lower die base 2, a second die 7 is arranged opposite to the first die 6, and a molding cavity 8 is arranged between the first die 6 and the second die 7;

[0028] The movable seat 11 is arranged on the lower surface of the second die 7 , and the movable seat 11 is welded to the second die 7 . The upper surface of the lower die seat 2 is provided with a movable groove 10 , and the movable seat 11 moves forward and backward along the movable groove 10 .

[0029] Rotate the limit rotating plate 12 to both sides. When the second die 7 loses its blocking force, pull the second die 7 outward to separate the first die 6 and the second die 7. In this way, demolding can be achieved, replacing the existing ejection demolding, without causing impact damage to the automobile lampshade, thereby improving safety and product quality.

[0030] See also Figure 4 The rear surfaces of both ends of the second die 7 are provided with positioning columns 21, and the positioning columns 21 are welded to the second die 7. Positioning grooves 20 are provided inside both ends of the first die 6, and the positioning columns 21 move along the positioning grooves 20 to push the second die 7 toward the first die 6. When pushing, the moving seat 11 moves along the moving groove 10 to play a guiding effect to avoid deviation, and the positioning columns 21 move along the positioning grooves 20 to position the connection between the first die 6 and the second die 7, thereby improving the connection stability.

[0031] See also Figure 1 , 2 3. The front ends of both sides of the second die 7 are provided with limit rotating plates 12, and the side surface of one end of the limit rotating plate 12 is provided with a rotating shaft 14, and the rotating shaft 14 and the limit rotating plate 12 are an integrated structure. The limit rotating plate 12 is rotated, and the limit rotating plate 12 is rotatably connected with the mounting frame 13 through the rotating shaft 14 through the ball bearing 19, and rotates to the front end of the second die 7, thereby having a resisting effect on the second die 7 and preventing it from moving by itself, so that the first die 6 and the second die 7 always keep in contact.

[0032] See also Figure 2 , 3 A ball bearing 19 is arranged on the outside of the rotating shaft 14, a mounting frame 13 is arranged on the outside of the ball bearing 19, a rotating groove 18 is arranged on the inside of the mounting frame 13, and the rotating shaft 14 is rotatably connected to the mounting frame 13 through the ball bearing 19, a fixing plate 17 is arranged on the side surface of one end of the mounting frame 13, and the fixing plate 17 is threadedly connected to the lower mold base 2 through an external bolt to realize the rotation of the limited rotating plate 12.

[0033] See also Figure 2 , 3 A mounting plate 15 is disposed at one end of the rotating shaft 14 , a threaded fastener 16 is disposed at one end of the mounting plate 15 , and the mounting plate 15 is rotatably connected to the rotating shaft 14 through the threaded fastener 16 to prevent the rotating shaft 14 from slipping.

[0034] See also Figure 1 , 4A pulling frame 9 is provided on the front surface of the second die 7, and the pulling frame 9 is welded to the second die 7. A finger groove 22 is provided on the surface of the pulling frame 9, and four finger grooves 22 are provided, so that the second die 7 can be pulled and pushed conveniently through the pulling frame 9.

[0035] See also Figure 1 Guide columns 3 are provided at the corners of the lower die base 2, and a connecting frame 4 is provided on the central upper surface of the upper die base 1. The guide columns 3 are used to improve the stability and directionality of the upper die base 1 when moving up and down.

[0036] Working principle: when in use, push the second die 7 in the direction of the first die 6. When pushing, the moving seat 11 moves along the moving groove 10 to play a guiding effect to avoid deviation, and the positioning column 21 moves along the positioning groove 20 to position the connection between the first die 6 and the second die 7, thereby improving the connection stability. When the first die 6 and the second die 7 are in contact, the limit rotating plate 12 is rotated. The limit rotating plate 12 is rotatably connected with the mounting frame 13 through the rotating shaft 14 through the ball bearing 19 and rotated to the front end of the second die 7, thereby resisting the second die 7 and avoiding self-movement, so that the first die 6 and the second die 7 always keep in contact. At this time, the molding operation is carried out. After the molding is completed, the limit rotating plate 12 is rotated to both sides. When the second die 7 loses its blocking force, the second die 7 is pulled outward to separate the first die 6 and the second die 7. In this way, demoulding can be achieved, replacing the existing ejection demoulding, and will not cause impact damage to the automobile lampshade, thereby improving safety and product quality.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A demoulding mechanism for a car lampshade mold, comprising an upper mold base (1), a lower mold base (2) being arranged below the upper mold base (1), and a punch (5) being arranged at the lower end of the upper mold base (1); Features: Also includes: A first concave die (6) is arranged at the upper end of the lower die base (2); a second concave die (7) is arranged opposite the first concave die (6); and a molding cavity (8) is arranged between the first concave die (6) and the second concave die (7); A movable seat (11) is arranged on the lower surface of the second concave die (7), and the movable seat (11) is welded to the second concave die (7); a movable groove (10) is arranged on the upper surface of the lower die seat (2), and the movable seat (11) moves forward and backward along the movable groove (10).

2. The automotive lampshade mold demoulding mechanism according to claim 1, characterized in that: Positioning columns (21) are provided on the rear surfaces of both ends of the second die (7), and the positioning columns (21) are welded to the second die (7), and positioning grooves (20) are provided inside both ends of the first die (6), and the positioning columns (21) move along the positioning grooves (20).

3. The automotive lampshade mold demoulding mechanism according to claim 1, characterized in that: A limit rotation plate (12) is provided at the front ends of both sides of the second concave mold (7), a rotation shaft (14) is provided on the side surface of one end of the limit rotation plate (12), and the rotation shaft (14) and the limit rotation plate (12) are an integral structure.

4. The automotive lampshade mold demoulding mechanism according to claim 3, characterized in that: A ball bearing (19) is arranged outside the rotating shaft (14), a mounting frame (13) is arranged outside the ball bearing (19), a rotating groove (18) is arranged inside the mounting frame (13), and the rotating shaft (14) is rotatably connected to the mounting frame (13) via the ball bearing (19), a fixing plate (17) is arranged on a side surface of one end of the mounting frame (13), and the fixing plate (17) is threadedly connected to the lower die seat (2) via an external bolt.

5. The automotive lampshade mold demoulding mechanism according to claim 3, characterized in that: A mounting plate (15) is provided at one end of the rotating shaft (14), a threaded fastener (16) is provided at one end of the mounting plate (15), and the mounting plate (15) is rotatably connected to the rotating shaft (14) via the threaded fastener (16).

6. The automotive lampshade mold demoulding mechanism according to claim 1, characterized in that: A pulling frame (9) is provided on the front surface of the second concave mold (7), and the pulling frame (9) is welded to the second concave mold (7). The surface of the pulling frame (9) is provided with finger grooves (22), and four finger grooves (22) are provided.

7. The automotive lampshade mold demoulding mechanism according to claim 1, characterized in that: Guide columns (3) are provided at the corners of the lower die seat (2), and a connecting frame (4) is provided on the central upper surface of the upper die seat (1).

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