Positioning structure for mobile phone shell injection mold

Abstract

The utility model relates to the technical field of injection molds, and discloses a positioning structure for a mobile phone shell injection mold, which comprises a shell, the top side of the front end of the shell is fixedly connected with an upper fixing block, the bottom side of the front end of the shell is fixedly connected with a rolling frame, the top end of the rolling frame is provided with a groove, a shielding component is arranged in the groove, and the upper fixing block is fixedly connected with the upper fixing block. The shielding assembly can play a role in isolating the mold, a telescopic rod is arranged on the inner wall of the top end of the shell, an upper injection mold is fixedly connected to the bottom end of the telescopic rod, a plurality of modules are fixedly connected to the bottom end of the upper injection mold, and dragging assemblies are arranged at the left end and the right end of the upper injection mold correspondingly; and the inner wall of the bottom end of the shell is fixedly connected with a lower injection mold. According to the injection mold disclosed by the utility model, the shielding cloth is pulled up while the upper injection mold moves downwards, so that a worker can be prevented from being in contact with the mold during injection molding of the mold, the personal safety of the worker is effectively protected, and the probability of occupational injury is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a positioning structure for an injection mold of a mobile phone shell. Background Art

[0002] Injection molding is a molding process that combines injection and molding. Its advantages include high production speed, high efficiency, automated operation, a wide variety of designs and colors, and the ability to accommodate shapes from simple to complex, large to small. Furthermore, it produces precise product dimensions, is easily updated, and can produce complex shapes. Injection molding is suitable for mass production and for the production of complex products. At a certain temperature, completely molten plastic material is stirred by a screw, injected into a mold cavity under high pressure, and then cooled and solidified to produce a molded product. This method is suitable for mass production of complex parts and is a key processing method. The primary function of mobile phone cases is to protect the phone, and injection molding is typically used in their production.

[0003] The existing mobile phone case injection molding has two molds. The two molds are closed and injection molding is performed into the molds. However, during the actual injection molding production process, the two molds will have a slight offset, which results in poor quality of the final product. In addition, since the temperature of the mold is usually high during the injection molding process, the worker's limbs may come into contact with the mold, causing work-related injuries. In response to this technical problem, this application proposes a positioning structure for a mobile phone case injection mold. Utility Model Content

[0004] The purpose of the present utility model is to solve the shortcomings existing in the prior art, and a positioning structure for a mobile phone case injection mold is proposed. By pulling up the shielding cloth while the upper injection mold moves downward, the workers can avoid contact with the mold when injecting the mold, effectively protecting the personal safety of the workers, reducing the probability of work-related injuries, and avoiding external interference with the mold to ensure a normal injection molding process; by inserting the insert block into the slot on the limit block while the upper injection mold moves downward, the stability of the upper injection mold and the lower injection mold during the injection molding process is improved, and the upper injection mold and the lower injection mold are prevented from offsetting.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A positioning structure for a mobile phone case injection mold comprises a shell, the front end top side of the shell is fixedly connected to an upper fixing block, the front end bottom side of the shell is fixedly connected to a winding frame, the top of the winding frame is provided with a groove, a shielding component is provided in the groove, and the shielding component can isolate the mold, a telescopic rod is provided on the top inner wall of the shell, the bottom end of the telescopic rod is fixedly connected to an upper injection mold, the bottom end of the upper injection mold is fixedly connected to multiple modules, a dragging component is provided on both the left and right ends of the upper injection mold, the bottom end inner wall of the shell is fixedly connected to a lower injection mold, and the left and right ends of the lower injection mold are fixedly connected to a limiting block.

[0007] Furthermore, the shielding assembly includes a rotating rod rotatably connected in the top groove of the winding frame, the outer wall of the rotating rod is provided with a shielding cloth, one end of the shielding cloth is fixedly connected to the rotating rod, and the other end of the shielding cloth is fixedly connected to a fixing bar.

[0008] Furthermore, the dragging assembly includes a limit block 2 fixedly connected at the left and right ends of the upper injection mold, the bottom end of the limit block 2 is fixedly connected to an insert block, the top of the limit block 2 is fixedly connected to a rope, and four pulleys are provided on the top inner wall of the shell, wherein the two pulleys at the front end are fixedly connected to the bottom end of the upper fixed block, and the two pulleys at the rear end are fixedly connected to the shell, and the rope passes through the two pulleys located on the same side.

[0009] Furthermore, a clockwork spring is provided at one end of the rotating rod, one end of the clockwork spring is connected to the rotating rod, and the other end of the clockwork spring is connected to the winding frame.

[0010] Furthermore, the four corners of the top of the lower injection mold are fixedly connected to limit rods, and the bottom end of the limit rods is fixedly connected to limit plates. The limit rods play a positioning role for the upper injection mold and the lower injection mold, and the upper injection mold is slidably connected to the limit rods.

[0011] Furthermore, a plurality of mold grooves are provided at the top end of the lower injection mold, and the specifications of the mold grooves are adapted to the modules located at the bottom end of the upper injection mold.

[0012] Furthermore, both left and right ends of the lower injection mold are fixedly connected to a limiting block 1, and a slot is provided on the top of the limiting block 1, and the specifications of the slot are adapted to the insert block.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the present invention, by pulling up the shielding cloth while the upper injection mold moves downward, workers can be prevented from touching the mold during injection molding, effectively protecting the personal safety of workers and reducing the probability of work-related injuries. At the same time, it also avoids external interference with the mold and ensures a normal injection molding process.

[0015] 2. In the present invention, the insert block is inserted into the slot on the limit block 1 while the upper injection mold moves downward, thereby improving the stability of the upper injection mold and the lower injection mold during the injection molding process and preventing the upper injection mold and the lower injection mold from deflecting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of a positioning structure for a mobile phone case injection mold proposed in the present invention;

[0017] Figure 2 This is a structural schematic diagram of an upper injection mold for a positioning structure of a mobile phone case injection mold proposed by the present invention;

[0018] Figure 3 for Figure 2 A magnified view of point A in the figure;

[0019] Figure 4 This is a structural schematic diagram of a limiting block 1 of a positioning structure for a mobile phone case injection mold proposed by the present invention.

[0020] Legend:

[0021] 1. Housing; 2. Upper fixed block; 3. Winding frame; 4. Screening cloth; 5. Telescopic rod; 6. Pulley; 7. Upper injection mold; 8. Lower injection mold; 9. Limit rod; 10. Limit block 1; 11. Rope; 12. Limit block 2; 13. Insert block; 14. Rotating rod; 15. Spring; 16. Fixing bar. DETAILED DESCRIPTION

[0022] 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.

[0023] Reference Figure 1-3The utility model provides an embodiment of a positioning structure for a mobile phone case injection mold, comprising a shell 1, the front top side of the shell 1 is fixedly connected to an upper fixing block 2, the upper fixing block 2 is used to install two pulleys 6 at the front end, the front bottom side of the shell 1 is fixedly connected to a winding frame 3, the winding frame 3 is used to store the shielding cloth 4, the top of the winding frame 3 is provided with a groove, a rotating rod 14 rotatably connected in the groove, and a shielding cloth 4 is provided on the outer wall of the rotating rod 14. By providing the shielding cloth 4, it is possible to prevent the staff from touching the mold during injection molding. One end of the shielding cloth 4 is fixedly connected to the rotating rod 14, and the other end of the shielding cloth 4 is fixedly connected to a fixing bar 16. A telescopic rod 5 is provided on the top inner wall of the shell 1, and the bottom end of the telescopic rod 5 is fixedly connected to the upper injection mold 7. An injection channel is provided in the upper injection mold 7, which can be used for injection molding on the lower injection mold 8. The movement of the upper injection mold 7 can be achieved by providing the telescopic rod 5. The bottom end of the upper injection mold 7 There are multiple modules fixedly connected, and the left and right ends of the upper injection mold 7 are fixedly connected to the limit block 2 12, and the bottom end of the limit block 2 12 is fixedly connected to the plug block 13. The plug block 13 has a certain toughness. When the upper injection mold 7 moves downward, it will move with the plug block 13 and insert the plug block 13 into the slot on the limit block 10, thereby improving the stability of the upper injection mold 7 and the lower injection mold 8. The top of the limit block 2 12 is fixedly connected to a rope 11, and four pulleys 6 are provided on the top inner wall of the shell 1, of which the two pulleys 6 at the front end are fixedly connected to the bottom end of the upper fixed block 2, and the two pulleys 6 at the rear end are fixedly connected to the shell 1. The rope 11 passes through the two pulleys 6 on the same side. When the upper injection mold 7 moves downward, the rope 11 can be pulled, and the shielding cloth 4 can be pulled up by setting the pulley 6. The bottom inner wall of the shell 1 is fixedly connected to the lower injection mold 8, and the left and right ends of the lower injection mold 8 are fixedly connected to the limit block 10.

[0024] Reference Figure 2-4 A spring 15 is provided at one end of the rotating rod 14. This spring 15 allows the rotating rod 14 to rotate, thereby reeling the screen 4. One end of the spring 15 is connected to the rotating rod 14, and the other end of the spring 15 is connected to the reeling frame 3. The four corners of the top of the lower injection mold 8 are fixedly connected to limit rods 9, and the bottom ends of the limit rods 9 are fixedly connected to limit plates. The limit rods 9 serve to position the upper and lower injection molds 7 and 8. The upper injection mold 7 is slidably connected to the limit rods 9. The top of the lower injection mold 8 is provided with multiple mold slots, the specifications of which are compatible with the modules located at the bottom of the upper injection mold 7. The left and right ends of the lower injection mold 8 are fixedly connected to limit blocks 10. The top of the limit block 10 is provided with a slot, the specifications of which are compatible with the insert block 13. By inserting the insert block 13 into the slot, the stability of the upper and lower injection molds 7 and 8 can be improved.

[0025] Working principle: First, the upper injection mold 7 is pushed downward by the telescopic rod 5. When the upper injection mold 7 moves downward, it will move with the limit block 2 12. The limit block 2 12 pulls the rope 11 downward and pulls up the shielding cloth 4 under the action of the pulley 6. When the upper injection mold 7 contacts the lower injection mold 8, the insert block 13 will be inserted into the slot on the limit block 10, thereby improving the stability of the upper injection mold 7 and the lower injection mold 8 during the injection molding process, thereby achieving the shielding effect on the upper injection mold 7 and the lower injection mold 8, and then injection molding can be performed in the mold. When the injection is completed, the telescopic rod 5 moves the upper injection mold 7 upward, and the clockwork spring 15 at one end of the rotating rod 14 rotates the rotating rod 14, thereby realizing the winding of the shielding cloth 4, so that the staff can normally take out the injection molded model.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A positioning structure for a mobile phone case injection mold, characterized in that: The invention comprises a shell (1), wherein the front top side of the shell (1) is fixedly connected to an upper fixed block (2), the front bottom side of the shell (1) is fixedly connected to a winding frame (3), the top of the winding frame (3) is provided with a groove, a shielding component is provided in the groove, and the shielding component can play the effect of isolating the mold, the top inner wall of the shell (1) is provided with a telescopic rod (5), the bottom end of the telescopic rod (5) is fixedly connected to an upper injection mold (7), the bottom end of the upper injection mold (7) is fixedly connected to a plurality of modules, the left and right ends of the upper injection mold (7) are both provided with a dragging component, the bottom inner wall of the shell (1) is fixedly connected to a lower injection mold (8), and the left and right ends of the lower injection mold (8) are both fixedly connected to a limiting block (10).

2. A positioning structure for a mobile phone case injection mold according to claim 1, characterized in that: The shielding assembly comprises a rotating rod (14) rotatably connected in a top groove of the winding frame (3); a shielding cloth (4) is provided on the outer wall of the rotating rod (14); one end of the shielding cloth (4) is fixedly connected to the rotating rod (14); and the other end of the shielding cloth (4) is fixedly connected to a fixing strip (16).

3. The positioning structure for a mobile phone case injection mold according to claim 1, characterized in that: The dragging assembly includes a second limiting block (12) fixedly connected to the left and right ends of the upper injection mold (7), the bottom end of the second limiting block (12) is fixedly connected to an insert block (13), the top end of the second limiting block (12) is fixedly connected to a rope (11), and four pulleys (6) are provided on the top inner wall of the shell (1), wherein the two pulleys (6) at the front end are fixedly connected to the bottom end of the upper fixed block (2), and the two pulleys (6) at the rear end are fixedly connected to the shell (1), and the rope (11) passes through the two pulleys (6) located on the same side.

4. The positioning structure for a mobile phone case injection mold according to claim 2, characterized in that: A spring (15) is provided at one end of the rotating rod (14), one end of the spring (15) is connected to the rotating rod (14), and the other end of the spring (15) is connected to the winding frame (3).

5. The positioning structure for a mobile phone case injection mold according to claim 1, characterized in that: The four corners of the top end of the lower injection mold (8) are fixedly connected to the limiting rod (9), and the bottom end of the limiting rod (9) is fixedly connected to the limiting plate. The limiting rod (9) plays a role in positioning the upper injection mold (7) and the lower injection mold (8), and the upper injection mold (7) is slidably connected to the limiting rod (9).

6. The positioning structure for a mobile phone case injection mold according to claim 1, characterized in that: The top end of the lower injection mold (8) is provided with a plurality of mold grooves, and the specifications of the mold grooves are adapted to the modules located at the bottom end of the upper injection mold (7).

7. The positioning structure for a mobile phone case injection mold according to claim 1, characterized in that: The left and right ends of the lower injection mold (8) are fixedly connected to a limiting block (10), and a slot is provided at the top of the limiting block (10), and the specifications of the slot are compatible with the insert block (13).

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