Display shell injection molding device

Abstract

The utility model discloses a display shell injection molding device, which relates to the field of display shell injection molding, and comprises an upper mold plate and a lower mold plate, the upper mold plate comprises an upper mold plate main body, a hydraulic rod and a feeding structure, and the bottom end of the upper mold plate main body is fixedly connected with one end of the hydraulic rod; the injection molding device comprises an upper mold plate main body, four groups of hydraulic rods are symmetrically arranged at the bottom end of the upper mold plate main body, an opening is formed in the top end of the upper mold plate main body, and a feeding structure is fixed in the opening. The feeding structure is fixed in an opening formed in the top end of an upper mold plate main body of the upper mold plate and plays a role in stirring, mixing and smooth feeding in the upper mold plate, during use, the feeding structure of the injection molding device can stir and mix molten plastic raw materials, the phenomena of blockage and overflowing of the plastic raw materials are reduced, and the service life of the injection molding device is prolonged. And the uniformity of the raw materials during downward injection can be ensured, and bubbles and accumulation are reduced.

Description

Technical Field

[0001] The utility model relates to the field of display shell injection molding, in particular to a display shell injection molding device. Background Art

[0002] Monitor housing injection molding refers to the process of making the monitor housing part into an injection molded part. This process usually uses plastic material and injects it into the mold through an injection molding machine to form an appearance and shape that matches the monitor design.

[0003] During the injection molding of existing display housings, bubbles and accumulation are prone to occur due to the lack of a stirring structure in the injection port. Bubbles are usually formed when the gas in the plastic material fails to be completely discharged during the injection molding process. These bubbles may cause an uneven surface of the product and even affect the structural strength of the product. There is still room for improvement in the structure. Utility Model Content

[0004] The purpose of the utility model is to provide a display housing injection molding device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a display housing injection molding device, comprising an upper mold plate and a lower mold plate, wherein the lower mold plate is fixedly connected to the bottom end of the upper mold plate;

[0006] The feeding structure is fixed in an opening formed at the top of the upper mold plate body of the upper mold plate, and plays a role in stirring, mixing and smoothly feeding the materials in the upper mold plate.

[0007] Preferably, the upper mold plate includes an upper mold plate body, a hydraulic rod and a feeding structure. The bottom end of the upper mold plate body is fixedly connected to one end of the hydraulic rod, and the other end of the hydraulic rod is fixedly connected to the lower mold plate. The hydraulic rods are provided in four groups and are symmetrically arranged at the bottom end of the upper mold plate body. An opening is provided at the top of the upper mold plate body, and a feeding structure is fixed in the opening.

[0008] Preferably, the lower mold plate comprises a lower mold plate body, an injection molding plate, a slide groove and a polishing structure. The injection molding plate is fixed to the top of the lower mold plate body, a slide groove is opened on the outside of the lower mold plate body, and a polishing structure is installed in the slide groove.

[0009] Preferably, the feeding structure includes a feeding pipe, an eccentric screw, a fixed plate and an output shaft. The feeding pipe is fixed in the opening at the top of the upper mold plate body, the external motor is fixedly connected to one end of the output shaft, the other end of the output shaft is fixedly connected to one side of the top of the fixed plate, the bottom end of the fixed plate is fixedly connected to one end of the eccentric screw, and the feeding pipe is sleeved on the outside of the eccentric screw.

[0010] Preferably, the grinding structure includes a first rotating shaft, a first fixed shaft, a spring, a fixed sleeve, a second rotating shaft and a grinding belt. The rear end of the first rotating shaft is fixedly connected to the motor output shaft fixed inside the lower mold plate body, the rear end of the fixed sleeve is fixedly connected to the inner wall of the slide groove, the other end of the first rotating shaft passes through the fixed sleeve and is fixedly connected to the second rotating shaft, the rear end of the first fixed shaft is slidably connected to the inner wall of the slide groove, a spring is fixed between the fixed sleeve and the first fixed shaft, and grinding belts are fixed to the outer wall of the second rotating shaft and the outer wall of the front end of the first fixed shaft.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model provides a display shell injection molding device, comprising an upper mold plate and a lower mold plate, wherein the bottom end of the upper mold plate is fixedly connected to the lower mold plate; a feeding structure, wherein the feeding structure is fixed in an opening provided at the top end of the upper mold plate main body of the upper mold plate, and plays a role of stirring, mixing and smoothly feeding in the upper mold plate. When in use, the feeding structure of the injection molding device can stir and mix the molten plastic raw material, reduce the blockage and overflow of the plastic raw material, and can also ensure the uniformity of the raw material when it is injected downward, and reduce the occurrence of bubbles and accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings:

[0014] Figure 1 Schematic diagram of the display housing injection molding device of the utility model Figure 1 ;

[0015] Figure 2 Schematic diagram of the display housing injection molding device of the utility model Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the feeding structure of the display housing injection molding device of the utility model;

[0017] Figure 4 This is a detailed diagram of the polishing structure of the display housing injection molding device of the utility model.

[0018] In the figure: 1. upper mold plate; 2. lower mold plate; 3. upper mold plate body; 4. hydraulic rod; 5. feeding structure; 6. lower mold plate body; 7. injection molding plate; 8. slideway; 9. grinding structure; 10. feeding pipe; 11. eccentric screw; 12. fixed plate; 13. output shaft; 14. first rotating shaft; 15. first fixed shaft; 16. spring; 17. fixed sleeve; 18. second rotating shaft; 19. grinding belt. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0020] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0021] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0023] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0024] Embodiment 1

[0025] See also Figures 1 to 4, the utility model provides a technical solution: a display housing injection molding device, comprising an upper mold plate 1 and a lower mold plate 2, wherein the lower mold plate 2 is fixedly connected to the bottom end of the upper mold plate 1;

[0026] A feeding structure 5, which is fixed in an opening at the top of the upper mold plate body 3 of the upper mold plate 1, and plays a role in stirring, mixing and smoothly feeding in the upper mold plate 1;

[0027] When in use, the feed structure 5 of the injection molding device can stir and mix the molten plastic raw material, reduce the blockage and overflow of the plastic raw material, and ensure the uniformity of the raw material when it is injected downward, reducing the occurrence of bubbles and accumulation.

[0028] Embodiment 2

[0029] On the basis of the first embodiment, the lower mold plate 2 includes a lower mold plate body 6, an injection molding plate 7, a slide groove 8 and a polishing structure 9. The injection molding plate 7 is fixed to the top of the lower mold plate body 6. The slide groove 8 is opened on the outer side of the lower mold plate body 6, and the polishing structure 9 is installed in the slide groove 8.

[0030] The grinding structure 9 includes a rotating shaft 14, a first fixed shaft 15, a spring 16, a fixed sleeve 17, a second rotating shaft 18 and a grinding belt 19. The rear end of the rotating shaft 14 is fixedly connected to the motor output shaft fixed inside the lower mold plate body 6, the rear end of the fixed sleeve 17 is fixedly connected to the inner wall of the slide groove 8, the other end of the rotating shaft 14 passes through the fixed sleeve 17 and is fixedly connected to the second rotating shaft 18, the rear end of the first fixed shaft 15 is slidably connected to the inner wall of the slide groove 8, a spring 16 is fixed between the fixed sleeve 17 and the first fixed shaft 15, and the outer wall of the second rotating shaft 18 and the outer wall of the front end of the first fixed shaft 15 are fixed with a grinding belt 19;

[0031] After the injection molding is completed, the molded template is removed from the surface of the injection molding plate 7. At this time, the motor inside the lower mold plate body 6 drives a first rotating shaft 14 to rotate, and a first rotating shaft 14 drives a second rotating shaft 18 and a surface grinding belt 19 to rotate. The template is placed between the two sets of grinding belts 19 to grind the burrs and water outlets at the corners. The distance between the two sets of grinding belts 19 can be adjusted under the elastic force of the spring 16. For templates of different widths, under the elastic force of the spring 16, the two sets of grinding belts 19 can always fit on both sides of the template for grinding.

[0032] Embodiment 3

[0033] On the basis of the first embodiment, the upper mold plate 1 includes an upper mold plate body 3, a hydraulic rod 4 and a feeding structure 5. The bottom end of the upper mold plate body 3 is fixedly connected to one end of the hydraulic rod 4, and the other end of the hydraulic rod 4 is fixedly connected to the lower mold plate 2. The hydraulic rod 4 is provided with four groups and symmetrically arranged at the bottom end of the upper mold plate body 3. The top end of the upper mold plate body 3 is provided with an opening, and the feeding structure 5 is fixed in the opening.

[0034] The feeding structure 5 includes a feeding pipe 10, an eccentric screw 11, a fixing plate 12 and an output shaft 13. The feeding pipe 10 is fixed in the opening at the top of the upper mold plate body 3. The external motor is fixedly connected to one end of the output shaft 13. The other end of the output shaft 13 is fixedly connected to one side of the top of the fixing plate 12. The bottom end of the fixing plate 12 is fixedly connected to one end of the eccentric screw 11. The feeding pipe 10 is sleeved outside the eccentric screw 11.

[0035] During feeding, the molten plastic enters the upper mold plate 1 through the feed pipe 10. At this time, the external motor drives the output shaft 13 to rotate, and the output shaft 13 drives the eccentric screw 11 and the fixed plate 12 to rotate. The output shaft 13 is not located at the center of the top of the eccentric screw 11. Therefore, when rotating, the eccentric screw 11 will play a certain stirring and mixing role to prevent plastic blockage and overflow, and reduce the occurrence of bubbles and accumulation.

[0036] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention, including the claims, is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0037] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A display housing injection molding device, comprising an upper mold plate (1) and a lower mold plate (2), characterized in that: The bottom end of the upper mold plate (1) is fixedly connected to a lower mold plate (2); The feeding structure (5) is fixed in an opening formed at the top of the upper mold plate body (3) of the upper mold plate (1), and plays a role in stirring, mixing and smoothly feeding materials in the upper mold plate (1).

2. The display housing injection molding device according to claim 1, characterized in that: The upper mold plate (1) comprises an upper mold plate body (3), a hydraulic rod (4) and a feeding structure (5); the bottom end of the upper mold plate body (3) is fixedly connected to one end of the hydraulic rod (4); the other end of the hydraulic rod (4) is fixedly connected to the lower mold plate (2); four groups of hydraulic rods (4) are symmetrically arranged at the bottom end of the upper mold plate body (3); an opening is provided at the top end of the upper mold plate body (3), and the feeding structure (5) is fixed in the opening.

3. The display housing injection molding device according to claim 1, characterized in that: The lower mold plate (2) comprises a lower mold plate body (6), an injection molding plate (7), a slide groove (8) and a grinding structure (9); the injection molding plate (7) is fixed to the top of the lower mold plate body (6); a slide groove (8) is provided on the outer side of the lower mold plate body (6); and a grinding structure (9) is installed in the slide groove (8).

4. The display housing injection molding device according to claim 2, characterized in that: The feeding structure (5) comprises a feeding pipe (10), an eccentric screw (11), a fixing plate (12) and an output shaft (13); the feeding pipe (10) is fixed in an opening at the top end of the upper mold plate body (3); an external motor is fixedly connected to one end of the output shaft (13); the other end of the output shaft (13) is fixedly connected to one side of the top end of the fixing plate (12); the bottom end of the fixing plate (12) is fixedly connected to one end of the eccentric screw (11); and the feeding pipe (10) is sleeved outside the eccentric screw (11).

5. The display housing injection molding device according to claim 3, characterized in that: The grinding structure (9) comprises a rotating shaft (14), a first fixed shaft (15), a spring (16), a fixed sleeve (17), a second rotating shaft (18) and a grinding belt (19); the rear end of the rotating shaft (14) is fixedly connected to the motor output shaft fixed inside the lower mold plate body (6); the rear end of the fixed sleeve (17) is fixedly connected to the inner wall of the slide groove (8); the other end of the rotating shaft (14) passes through the fixed sleeve (17) and is fixedly connected to the second rotating shaft (18); the rear end of the first fixed shaft (15) is slidably connected to the inner wall of the slide groove (8); a spring (16) is fixed between the fixed sleeve (17) and the first fixed shaft (15); and the outer wall of the second rotating shaft (18) and the outer wall of the front end of the first fixed shaft (15) are both fixed with a grinding belt (19).

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