Mould for producing waterproof middle frame of smart phone

Abstract

The utility model discloses a mold for producing a waterproof middle frame of an intelligent mobile phone, and relates to the technical field of model production. The mold for production comprises a base, a frame is fixedly connected to the upper portion of the base, an upper mold plate is fixedly connected to the bottom of the frame through an air cylinder, a lower mold plate is fixedly connected to the upper portion of the base, and a replacement assembly and a sealing assembly are fixedly connected to the upper portion of the base; the replacement assembly comprises a fixing block, the inner wall of the fixing block is in threaded connection with a lead screw, through the design of the lead screw and a rotating disc, the lower die plate is easy, convenient and rapid to replace, an operator only needs to rotate the rotating disc, the lead screw can drive a connecting plate to fix and loosen the lower die plate, and the replacement efficiency of the lower die plate is improved. Complex tools and a large amount of manpower are not needed, the replacement time of the lower die plate is greatly shortened, the shutdown time is shortened, and the production efficiency of the die is improved.

Description

Technical Field

[0001] This utility model relates to the field of model production technology, specifically a mold for producing waterproof mid-frames for smartphones. Background Technology

[0002] With the rapid development of the smartphone industry, consumers have placed higher demands on the waterproof performance of mobile phones. This makes the production quality and efficiency of waterproof smartphone frames crucial. However, the molds used in the production of waterproof smartphone frames have shortcomings in terms of production efficiency, product quality, maintenance costs, and operational safety.

[0003] The replacement process of the lower mold plate of traditional molds is often cumbersome, requiring the use of various tools and a lot of manpower. Not only is the replacement inefficient, but it is also easy to cause the mold plate installation position to deviate, affecting the sealing of the mold when it is closed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a mold for the production of waterproof mid-frames for smartphones, which solves the problems of requiring multiple tools and consuming a lot of manpower, resulting in low efficiency in replacement and easy deviation in the installation position of the template.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a mold for producing waterproof mid-frames for smartphones, comprising a base, a frame fixedly connected to the top of the base, an upper template fixedly connected to the bottom of the frame via a cylinder, a lower template fixedly connected to the top of the base, and a replacement component and a sealing component fixedly connected to the top of the base; the replacement component includes a fixing block, a lead screw threadedly connected to the inner wall of the fixing block, a turntable fixedly connected to one end of the lead screw, a connecting plate fixedly connected to the other end of the lead screw, a support plate fixedly connected to the outer wall of the base, a first sliding groove formed on the inner wall of the support plate, a second sliding groove formed on the inner wall of the base, and a slider fixedly connected to the bottom of the lower template.

[0008] Preferably, the top of the base is fixedly connected to the bottom of the fixing block, the outer wall of the connecting plate is snapped into the outer wall of the lower template, and the fixing block and the base are fixedly connected by welding to ensure connection strength.

[0009] Preferably, the first slide groove and the second slide groove are equally formed, the support plate is fixedly connected to the base by bolts, the slider is slidably connected to the first slide groove, and the slider matches the first slide groove and the second slide groove.

[0010] Preferably, the sealing assembly includes an upper template, a groove at the bottom of the upper template, a sliding hole on the inner wall of the lower template, a spring fixedly connected to the inner wall of the sliding hole, a positioning post slidably connected to the inner wall of the sliding hole, a limit ring fixedly connected to the top of the sliding hole, and a sealing ring fixedly connected to the top of the lower template. The sealing ring is made of high-temperature resistant and wear-resistant fluororubber, and the cross-sectional shape of the sealing ring is lip-shaped.

[0011] Preferably, the positioning post engages with the slot, and four positioning posts are provided, each positioned at one of the four corners of the lower template. The inner wall of the slot is provided with a wear-resistant coating, which can reduce wear during the engagement and disengagement of the positioning post and the slot, and extend the service life of the upper template and the positioning post.

[0012] Preferably, one end of the spring is fixedly connected to the bottom of the positioning post, and the other end of the spring is fixedly connected to the bottom of the sliding hole. The positioning post presses down on the spring, causing the spring to contract. After processing is completed, the upper template is disengaged, and the spring returns to the positioning post.

[0013] (III) Beneficial Effects

[0014] This utility model provides a mold for producing waterproof mid-frames for smartphones. It has the following advantages:

[0015] (I) This mold for producing waterproof mid-frames for smartphones, through the design of lead screw and turntable, in conjunction with the first slide groove, the second slide groove and the slider, makes the replacement of the lower template simple and quick. The operator only needs to rotate the turntable to drive the connecting plate through the lead screw to fix and loosen the lower template. No complicated tools and a lot of manpower are required, which shortens the replacement time of the lower template, reduces downtime, and improves the production efficiency of the mold.

[0016] (II) This mold for producing waterproof mid-frames for smartphones, through the cooperation of positioning pins and slots, combined with the design of springs and limiting rings, ensures that the upper and lower mold plates are positioned when they are closed, and the positioning pins rise to the same height each time. The sealing ring is made of high-temperature resistant and wear-resistant fluororubber. The reinforced skeleton at the lip and the embedded installation method enable it to maintain a good shape under injection pressure and prevent sealing failure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the replacement component of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the bearing plate of this utility model;

[0020] Figure 4This is a schematic diagram of the sealing assembly of this utility model.

[0021] In the diagram: 1. Frame; 2. Upper template; 3. Lower template; 4. Replacement component; 5. Sealing component; 6. Base; 41. Fixing block; 42. Lead screw; 43. Turntable; 44. Connecting plate; 45. Support plate; 46. First slide groove; 47. Second slide groove; 48. Slider; 51. Slot; 52. Positioning post; 53. Limiting ring; 54. Spring; 55. Sliding hole; 56. Sealing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a mold for producing waterproof mid-frames for smartphones, including a base 6, a frame 1 fixedly connected to the top of the base 6, an upper template 2 fixedly connected to the bottom of the frame 1 via a cylinder, a lower template 3 fixedly connected to the top of the base 6, and a replacement component 4 and a sealing component 5 fixedly connected to the top of the base 6; the replacement component 4 includes a fixing block 41, a lead screw 42 threadedly connected to the inner wall of the fixing block 41, a turntable 43 fixedly connected to one end of the lead screw 42, a connecting plate 44 fixedly connected to the other end of the lead screw 42, a support plate 45 fixedly connected to the outer wall of the base 6, a first sliding groove 46 formed on the inner wall of the support plate 45, a second sliding groove 47 formed on the inner wall of the base 6, a slider 48 fixedly connected to the bottom of the lower template 3, and the lead screw 42 adopts... Made of high-strength alloy steel, the threaded part is processed by rolling to ensure smooth and stable rotation of the lead screw 42 and has excellent wear resistance. It can still maintain transmission when the position of the lower template 3 is frequently adjusted. The end of the lead screw 42 near the turntable 43 is equipped with a torque limiting device to prevent damage to the lead screw 42, connecting plate 44 or lower template 3 due to excessive force. The top of the base 6 is fixedly connected to the bottom of the fixing block 41. The fixing block 41 and the base 6 are fixedly connected by welding to ensure the connection strength. The outer wall of the connecting plate 44 is engaged with the outer wall of the lower template 3. The first slide groove 46 and the second slide groove 47 are equally opened. The support plate 45 is fixedly connected to the base 6 by bolts. The slider 48 is slidably connected to the first slide groove 46. The slider 48 matches the first slide groove 46 and the second slide groove 47.

[0024] The sealing assembly 5 includes an upper template 2, with a groove 51 at its bottom. A sliding hole 55 is formed on the inner wall of the lower template 3. A spring 54 is fixedly connected to the inner wall of the sliding hole 55, and a positioning post 52 is slidably connected to the inner wall of the sliding hole 55. A limit ring 53 is fixedly connected to the top of the sliding hole 55. A sealing ring 56 is fixedly connected to the top of the lower template 3. The sealing ring 56 is made of high-temperature resistant and wear-resistant fluororubber, and its cross-sectional shape is lip-shaped. The positioning post 52 engages with the groove 51. The positioning post 52 is designed... Four positioning posts 52 are provided, with each of the four corners of the lower template 3. The inner wall of the slot 51 is coated with a wear-resistant coating, which can reduce the wear of the positioning posts 52 during the engagement and disengagement process with the slot 51, and extend the service life of the upper template 2 and the positioning posts 52. One end of the spring 54 is fixedly connected to the bottom of the positioning post 52, and the other end of the spring 54 is fixedly connected to the bottom of the sliding hole 55. The positioning post 52 presses down on the spring 54, causing the spring 54 to retract. After processing, the upper template 2 is disengaged, and the spring 54 returns to the positioning post 52.

[0025] In use, when the lower template 3 needs to be replaced, the operator rotates the turntable 43. Since the turntable 43 is fixedly connected to the lead screw 42, the lead screw 42 rotates along the inner wall of the fixed block 41. Based on the threaded connection between the lead screw 42 and the fixed block 41, the rotation of the lead screw 42 will drive the connecting plate 44 to move along the axial direction of the lead screw 42, causing the connecting plate 44 to separate from the outer wall of the lower template 3, releasing the clamping restriction on the lower template 3. At this time, the slider 48 at the bottom of the lower template 3 can move within the first slide groove 46 and the second slide groove 47. Sliding: The operator pushes the lower template 3 out along the slide groove to complete the disassembly of the old template. When installing the new lower template 3, the bottom slider 48 of the new template is aligned with the slide groove and pushed in. Then, the turntable 43 is rotated in the opposite direction to make the connecting plate 44 re-clamp the lower template 3, fixing the new template. During the mold closing process, the cylinder drives the upper template 2 to move downward. Under the elastic force of the spring 54, the positioning post 52 on the lower template 3 is initially higher than the upper surface of the lower template 3. As the upper template 2 gradually approaches the lower template 3, the upper template... 2. The bottom slot 51 contacts the positioning post 52. The positioning post 52 is squeezed by the slot 51 and slides downward against the elastic force of the spring 54, entering the sliding hole 55. When the slot 51 and the positioning post 52 are fully aligned, the spring 54 pushes the positioning post 52 into the slot 51, realizing the positioning of the upper template 2 and the lower template 3. At the same time, the sealing ring 56 on the top of the lower template 3 fits tightly against the upper template 2, forming a sealed space between the two to prevent the molten plastic from overflowing during the injection molding process. The limiting ring 53 limits the rising height of the positioning post 52 to ensure that the positioning post 52 is accurately positioned when it is inserted into the slot 51. After the lower template 3 is replaced and the mold sealing assembly 5 is positioned and sealed, the molten plastic is injected into the mold cavity. Under the action of high temperature and high pressure, the plastic fills the entire cavity. After cooling and solidification, the cylinder drives the upper template 2 to move upward to open the mold. Since the positioning post 52 is separated from the slot 51, the operator can take out the molded waterproof smartphone frame. Then, the lower template 3 can be replaced again or the next round of injection molding can continue according to production needs.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mold for producing a waterproof mid-frame for smartphones, comprising a base (6), a frame (1) fixedly connected to the top of the base (6), an upper template (2) fixedly connected to the bottom of the frame (1) via a cylinder, and a lower template (3) fixedly connected to the top of the base (6), characterized in that: A replacement component (4) and a sealing component (5) are fixedly connected to the top of the base (6); The replacement component (4) includes a fixing block (41), the inner wall of the fixing block (41) is threaded with a lead screw (42), one end of the lead screw (42) is fixedly connected to a turntable (43), the other end of the lead screw (42) is fixedly connected to a connecting plate (44), the outer wall of the base (6) is fixedly connected to a support plate (45), the inner wall of the support plate (45) is provided with a first sliding groove (46), the inner wall of the base (6) is provided with a second sliding groove (47), and the bottom of the lower template (3) is fixedly connected to a slider (48).

2. The mold for producing a waterproof mid-frame for smartphones according to claim 1, characterized in that: The top of the base (6) is fixedly connected to the bottom of the fixing block (41), and the outer wall of the connecting plate (44) is snapped into the outer wall of the lower template (3).

3. A mold for producing a waterproof mid-frame for smartphones according to claim 1, characterized in that: The first slide groove (46) and the second slide groove (47) are equally opened, the support plate (45) is fixedly connected to the base (6) by bolts, and the slider (48) is slidably connected to the first slide groove (46).

4. A mold for producing a waterproof mid-frame for smartphones according to claim 1, characterized in that: The sealing assembly (5) includes an upper template (2), a slot (51) is provided at the bottom of the upper template (2), a sliding hole (55) is provided on the inner wall of the lower template (3), a spring (54) is fixedly connected to the inner wall of the sliding hole (55), a positioning post (52) is slidably connected to the inner wall of the sliding hole (55), a limit ring (53) is fixedly connected to the top of the sliding hole (55), and a sealing ring (56) is fixedly connected to the top of the lower template (3).

5. A mold for producing a waterproof mid-frame for smartphones according to claim 4, characterized in that: The positioning post (52) is engaged with the slot (51). There are four positioning posts (52), and the four positioning posts (52) are respectively positioned at the four corners of the lower template (3).

6. A mold for producing a waterproof mid-frame for smartphones according to claim 4, characterized in that: One end of the spring (54) is fixedly connected to the bottom of the positioning post (52), and the other end of the spring (54) is fixedly connected to the bottom of the sliding hole (55).

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