Display middle frame injection molding mechanism

Abstract

The utility model discloses a display middle frame injection molding mechanism which comprises an upper die holder, a first lower die holder is slidably connected to the interior of the upper die holder, a second lower die holder is fixedly connected to the bottom of the first lower die holder, and first electric push rods are symmetrically and fixedly connected to the bottom of the second lower die holder. One side of the bottom of the second lower die holder is fixedly connected with a fixed chassis, the bottom of the fixed chassis is fixedly connected with a second electric push rod, the bottoms of the first electric push rod and the second electric push rod are fixedly connected with control devices, and the bottoms of the control devices are fixedly connected with a fixed base. Supporting bases are symmetrically and fixedly connected to the outer side of the upper die base, clamping bases on one sides of the supporting bases are connected with the clamping groove bases in a clamped mode, the second clamping blocks are squeezed by the first clamping blocks and retract towards one sides of the interiors of the clamping groove bases, and after the first clamping blocks are clamped into the clamping groove bases, the springs drive the second clamping blocks to rebound.

Description

Technical Field

[0001] The utility model belongs to the technical field of display middle frame processing, and particularly relates to an injection molding mechanism for a display middle frame. Background Art

[0002] The display middle frame injection molding mechanism is a molding device used to produce the display middle frame. The display middle frame is a part of the display, located at the edge of the display, used to protect the display screen and provide mechanical support. Injection molding is a processing method that melts thermoplastic plastic and injects it into a mold, and then cools and solidifies to obtain a product of the desired shape and size.

[0003] In some existing display middle frame injection molding mechanisms, when demolding the product, the contact area between the bottom frame and the demolding device is small, while the contact area between the side frame and the first lower mold base is large, resulting in difficulty in separating the product from the mold base during demolding, and the middle frame is prone to deformation. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a display middle frame injection molding mechanism to solve the problem that some existing display middle frame injection molding mechanisms proposed in the above background technology have small contact areas between the bottom frame and the stripping device when the product is demolded, while the contact areas between the side frame and the first lower mold base are large, resulting in the product and the mold base being difficult to separate during demolding, and the middle frame is prone to deformation.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a display middle frame injection molding mechanism, comprising an upper mold base, the interior of the upper mold base is slidably connected to a first lower mold base, the bottom of the first lower mold base is fixedly connected to a second lower mold base, the bottom of the second lower mold base is symmetrically fixedly connected to a first electric push rod, one side of the bottom of the second lower mold base is fixedly connected to a fixed chassis, the bottom of the fixed chassis is fixedly connected to a second electric push rod, the bottoms of the first and second electric push rods are both fixedly connected to a control device, the bottom of the control device is fixedly connected to a fixed base, the outer side of the upper mold base is symmetrically fixedly connected to a support base, one side of the support base is fixedly connected to a card base, the outer side of the card base is snap-connected to a card slot base, and the outer side of the card base is symmetrically fixedly connected to a first card block.

[0006] Preferably, an anti-sticking inner film is fixedly connected to the inner side of the upper mold base, and an anti-sticking bottom film is fixedly connected to the top of the first lower mold base.

[0007] Preferably, four first electric push rods are provided.

[0008] Preferably, the outer side of the first clamping block is engaged with the second clamping block, and one side of the outer side of the second clamping block is fixedly connected with a spring.

[0009] Preferably, outer sides of both ends of the spring are fixedly connected to reinforcement seats, and one side of the reinforcement seat is fixedly connected to the inner side of the slot seat.

[0010] Preferably, the second card block is slidably connected to the interior of the card slot.

[0011] Preferably, the bottom of the slot seat is fixedly connected to a support base.

[0012] Preferably, the bottom of the support base is fixedly connected to one side of the top of the fixed base.

[0013] Compared with the prior art, the present invention provides a display middle frame injection molding mechanism, which has the following beneficial effects:

[0014] The second clamping block is squeezed by the first clamping block and retracted toward one side of the inner portion of the clamping slot seat. After the first clamping block is inserted into the inner portion of the clamping slot seat, the spring brings the second clamping block back to engage and fix the clamping block and the first clamping block, thereby achieving a fixing effect on the upper mold base. In order to avoid the damage and breakage of the display middle frame due to uneven force during demoulding, the first electric push rod and the second electric push rod are extended and retracted under the control of the control device, and the first electric push rod and the second electric push rod push the first lower mold base fixed on the top of the second lower mold base upward, and the first lower mold base is slidably connected to the upper mold base, and the middle frame inside the upper mold base is pushed out of the inner portion of the upper mold base by the first lower mold base, thereby achieving the demoulding of the display middle frame. Because a plurality of first electric push rods are provided at the bottom of the second lower mold base, the uneven force can be avoided.

[0015] 2. The utility model provides an anti-stick bottom film. During the injection molding process, direct contact between the plastic and the bottom of the mold may cause adhesion between the plastic and the mold, making it difficult for the plastic product to be removed from the mold. The provision of an anti-stick inner film and an anti-stick bottom film can effectively reduce this mold sticking phenomenon, ensuring the integrity of the display middle frame and the smoothness of demolding.

[0016] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the axial structure of an injection molding mechanism for a display middle frame proposed by the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of a display middle frame injection molding mechanism proposed by the present invention from a top view;

[0020] Figure 3 This is a front structural diagram of a display middle frame injection molding mechanism proposed by the present invention;

[0021] Figure 4 This is a schematic diagram of the front vertical cross-section structure of a display middle frame injection molding mechanism proposed by the present invention;

[0022] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at point A;

[0023] Figure 6 This is a schematic side view of a vertical cross-sectional structure of an injection molding mechanism for a display middle frame proposed by the present invention;

[0024] Figure 7 for Figure 6 A schematic diagram of the enlarged structure at point B;

[0025] In the figure: upper mold base 1, anti-stick inner film 2, first lower mold base 3, anti-stick bottom film 4, second lower mold base 5, first electric push rod 6, fixed chassis 7, second electric push rod 8, control device 9, fixed base 10, support base 11, clamping base 12, first clamping block 13, clamping slot base 14, second clamping block 15, spring 16, reinforcement base 17, support base 18. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-7The utility model provides a technical solution: a display middle frame injection molding mechanism, including an upper mold base 1, the upper mold base 1 is slidably connected to the first lower mold base 3 inside, the first lower mold base 3 is fixedly connected to the second lower mold base 5 at the bottom, the second lower mold base 5 is symmetrically fixedly connected to the first electric push rod 6 at the bottom, one side of the bottom of the second lower mold base 5 is fixedly connected to the fixed chassis 7, the bottom of the fixed chassis 7 is fixedly connected to the second electric push rod 8, the first electric push rod 6 and the second electric push rod 8 are both fixedly connected to the control device 9, the bottom of the control device 9 is fixedly connected to the fixed base 10, the outer side of the upper mold base 1 is symmetrically fixedly connected to the support base 11, one side of the support base 11 is fixedly connected to the clamping base 12, the outer side of the clamping base 12 is clamped and connected to the card slot base 14, the outer side of the clamping base 12 is symmetrically fixedly connected to the first clamping block 13, the outer side of the upper mold base 1 is symmetrically fixedly connected to the support base 11, and the clamping base 12 on one side of the support base 11 is clamped and connected with the card slot base 14 The second clamping block 15 is squeezed by the first clamping block 13 and retracted to one side of the inner part of the clamping slot 14. After the first clamping block 13 is stuck in the inner part of the clamping slot 14, the spring 16 rebounds with the second clamping block 15, and the clamping seat 12 and the first clamping block 13 are engaged and fixed, thereby achieving the fixing effect of the upper mold base 1. In order to avoid the damage and breakage of the display middle frame due to uneven force during demoulding, the first electric push rod 6 and the second electric push rod 8 are extended and retracted under the control of the control device 9, and the first electric push rod 6 and the second electric push rod 8 are used to push the first lower mold base 3 fixed on the top of the second lower mold base 5 upward, and the first lower mold base 3 and the upper mold base 1 are slidably connected. The middle frame inside the upper mold base 1 is pushed out of the inner part of the upper mold base 1 by the first lower mold base 3, and the demoulding work of the display middle frame can be achieved. Because the first electric push rod 6 is provided with multiple at the bottom of the second lower mold base 5, the uneven force can be avoided.

[0028] In the present invention, preferably, the inner side of the upper mold base 1 is fixedly connected with an anti-sticking inner film 2, and the top of the first lower mold base 3 is fixedly connected with an anti-sticking bottom film 4. During the injection molding process, direct contact between the plastic and the bottom of the mold may cause adhesion between the plastic and the mold, making it difficult for the plastic product to be removed from the mold. The provision of the anti-sticking inner film 2 and the anti-sticking bottom film 4 can effectively reduce this mold sticking phenomenon and ensure the integrity of the display middle frame and the smoothness of demolding.

[0029] In the present invention, preferably, four first electric push rods 6 are provided.

[0030] In the present invention, preferably, the outer side of the first clamping block 13 is engaged with the second clamping block 15 , and one side of the outer side of the second clamping block 15 is fixedly connected with a spring 16 .

[0031] In the present invention, preferably, outer sides of both ends of the spring 16 are fixedly connected to reinforcement seats 17 , and one side of the reinforcement seat 17 is fixedly connected to the inner side of the slot seat 14 .

[0032] In the present invention, preferably, the second clamping block 15 is slidably connected to the interior of the clamping slot 14 .

[0033] In the present invention, preferably, a support base 18 is fixedly connected to the bottom of the slot seat 14 .

[0034] In the present invention, preferably, the bottom of the support base 18 is fixedly connected to one side of the top of the fixed base 10 .

[0035] The working principle and use process of the present invention are as follows: when in use, by setting the first lower mold base 3, the outer side of the upper mold base 1 is symmetrically fixedly connected with the support base 11, and the clamping base 12 on one side of the support base 11 is clamped and connected with the clamping slot base 14. The second clamping block 15 is squeezed by the first clamping block 13 and retracted to one side of the inside of the clamping slot base 14. After the first clamping block 13 is clamped into the inside of the clamping slot base 14, the spring 16 rebounds with the second clamping block 15, and the clamping base 12 and the first clamping block 13 are clamped and fixed, thereby achieving the fixing effect of the upper mold base 1. In order to avoid the damage and breakage of the display middle frame due to uneven force during demoulding, the first electric push rod 6 and the second electric push rod 8 are extended and retracted under the control of the control device 9. An electric push rod 6 and a second electric push rod 8 push upward the first lower mold base 3 fixed on the top of the second lower mold base 5. The first lower mold base 3 is slidably connected to the upper mold base 1. The middle frame inside the upper mold base 1 is pushed out of the upper mold base 1 through the first lower mold base 3, so that the middle frame of the display can be demoulded. Because there are multiple first electric push rods 6 at the bottom of the second lower mold base 5, uneven force can be avoided. By setting the anti-sticking bottom film 4, during the injection molding process, direct contact between the plastic and the bottom of the mold may cause adhesion between the plastic and the mold, making it difficult for the plastic product to be removed from the mold. The provision of the anti-sticking inner film 2 and the anti-sticking bottom film 4 can effectively reduce this sticking phenomenon and ensure the integrity of the middle frame of the display and the smoothness of demoulding.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A display middle frame injection molding mechanism, comprising an upper mold base (1), characterized in that: The upper die base (1) is internally slidably connected to a first lower die base (3), the bottom of the first lower die base (3) is fixedly connected to a second lower die base (5), the bottom of the second lower die base (5) is symmetrically fixedly connected to a first electric push rod (6), one side of the bottom of the second lower die base (5) is fixedly connected to a fixed chassis (7), the bottom of the fixed chassis (7) is fixedly connected to a second electric push rod (8), the bottoms of the first electric push rod (6) and the second electric push rod (8) are both fixedly connected to a control device (9), the bottom of the control device (9) is fixedly connected to a fixed base (10), the outer side of the upper die base (1) is symmetrically fixedly connected to a support base (11), one side of the support base (11) is fixedly connected to a clamping base (12), the outer side of the clamping base (12) is snap-connected to a slot base (14), and the outer side of the clamping base (12) is symmetrically fixedly connected to a first clamping block (13).

2. The display middle frame injection molding mechanism according to claim 1, characterized in that: The inner side of the upper die base (1) is fixedly connected to an anti-sticking inner film (2), and the top of the first lower die base (3) is fixedly connected to an anti-sticking bottom film (4).

3. The display middle frame injection molding mechanism according to claim 1, characterized in that: Four first electric push rods (6) are provided.

4. The display middle frame injection molding mechanism according to claim 1, characterized in that: The outer side of the first clamping block (13) is engaged with a second clamping block (15), and one side of the outer side of the second clamping block (15) is fixedly connected with a spring (16).

5. The display middle frame injection molding mechanism according to claim 4, characterized in that: The outer sides of both ends of the spring (16) are fixedly connected to a reinforcement seat (17), and one side of the reinforcement seat (17) is fixedly connected to the inner side of the slot seat (14).

6. The display middle frame injection molding mechanism according to claim 4, characterized in that: The second clamping block (15) is slidably connected to the interior of the clamping slot seat (14).

7. The display middle frame injection molding mechanism according to claim 1, characterized in that: The bottom of the slot seat (14) is fixedly connected to a support base (18).

8. The display middle frame injection molding mechanism according to claim 7, characterized in that: The bottom of the support base (18) is fixedly connected to one side of the top of the fixed base (10).

Images