Hot press for corner side of mobile phone shell

By designing a multi-station hot press for the corners of mobile phone cases, the problems of slow production speed and high cost in existing technologies have been solved. This enables multiple mobile phone cases to be hot-pressed simultaneously, improving production efficiency and the market competitiveness of the equipment.

CN223644253UActive Publication Date: 2025-12-09DONGGUAN FOUR DIMENSIONAL COMPOSITE PROD
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Patent Information

Application Number
CN202520024583.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2025-12-09
Estimated Expiration
2035-01-06

AI Technical Summary

Technical Problem

The current mobile phone case production process can only heat-press one product at a time, which is extremely slow, wastes energy, and has high labor costs.

Method used

Design a multi-station hot press machine for the corners of mobile phone cases, which includes multiple independently controllable first corner hot press modules and second corner hot press modules, capable of simultaneously hot pressing the corners of multiple mobile phone cases, thus realizing the mass production of various mobile phone cases.

Benefits of technology

It improves production efficiency, reduces energy and labor costs, and enables efficient hot pressing molding of various mobile phone cases to meet the needs of different customers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mobile phone shell production equipment, in particular to a mobile phone shell corner side hot press which comprises a working machine table, a supporting component with a middle partition plate is arranged on the working machine table, the supporting component is provided with a plurality of first corner hot-pressing modules, and the working machine table is provided with a plurality of second corner hot-pressing modules. The first corner hot-pressing module comprises a first corner shaping mold and a first fixed mold which are arranged on the middle partition plate; the second corner hot-pressing module comprises a second fixed mold and a second corner shaping mold which are arranged on the middle partition plate; wherein the first corner shaping mold and the second corner shaping mold comprise bases and mobile phone shell molds arranged on the bases, sliding rails are symmetrically arranged on the portions, on the two sides of the mobile phone shell molds, of the bases, shell edge forming parts are arranged on the two sliding rails in a sliding mode, and pushing devices are further arranged on the bases. A plurality of products can be formed at a time, the efficiency is greatly improved, the space utilization efficiency and the efficiency of equipment are greatly improved, and the energy cost is greatly reduced under the same yield.
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Description

Technical Field

[0001] This utility model relates to the field of mobile phone case production equipment technology, and in particular to a hot press machine for the corners of mobile phone cases. Background Technology

[0002] Mobile phones have become an indispensable tool for people's communication, life, work, entertainment, and study, far exceeding the scope of a mere communication device; they have also become a fashion item. Phone cases are an integral part of mobile phones, serving as a protective cover to prevent scratches, drops, and other accidental damage, thus protecting the phone's appearance and performance. Phone cases are typically made of materials such as silicone, TPU, PC, PU, ​​genuine leather, or wood, and offer features like anti-slip, anti-fingerprint, and shockproof properties. In recent years, with the widespread adoption and rapid upgrades of mobile phones, phone cases have also experienced rapid development. On the one hand, phone case styles have become increasingly diverse, offering not only traditional monochrome transparent designs but also a rich variety of designs including cartoon characters, patterns, and designs to meet the needs of different users; thermoforming, stamping, or injection molding are common processing methods for phone cases.

[0003] In particular, some phone cases, after being thermoformed, still have right angles at their four corners. A second thermoforming process is required to round off these corners, ensuring a proper fit to the phone's shape. However, current production methods only allow for one product to be thermoformed at a time, resulting in extremely slow production speeds, significant energy waste, and high energy costs. Furthermore, the process requires considerable manpower, leading to higher overall production costs. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-station hot press machine for the corner of a mobile phone case, so as to solve the problems mentioned in the background art, that only one product can be hot-pressed at a time during the production process of mobile phone cases, resulting in extremely slow production speed, great waste of electrical energy, high energy costs, and the need for a lot of manpower, which leads to high production costs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hot pressing machine for the corner of a mobile phone case, comprising: a worktable, a support component with a middle partition plate on the worktable, a plurality of first corner hot pressing modules that can be independently controlled to operate hot pressing on the support component, and a plurality of second corner hot pressing modules that can be independently controlled to operate hot pressing on the worktable below the first corner hot pressing modules.

[0006] The first corner hot pressing module includes a first corner shaping mold disposed on the middle partition for hot pressing the phone case, so that the corners of the phone case are hot pressed from right angles to rounded corners, and a first fixing mold that is closed with the first corner shaping mold when pressed down to hot press the phone case.

[0007] The second corner hot pressing module includes a second fixed mold disposed on the middle partition and a second corner shaping mold disposed on the worktable and which, when raised, closes with the second fixed mold to hot press the phone case.

[0008] The first and second corner shaping molds include a base and a mobile phone case mold on the base. Slide rails are symmetrically provided on the base on both sides of the mobile phone case mold. Shell edge forming components that can be pressed into the mobile phone case mold for hot pressing the corners of the mobile phone case are slidably provided on both slide rails. The base is also provided with a pushing device that drives the hot pressing side fixture to move toward the mobile phone case mold.

[0009] A preferred embodiment of this utility model is as follows: the outer shell edge forming component includes a bottom heat insulation plate that slides on the slide rail, a fixture mounting block with a heating tube on the bottom heat insulation plate, a side heat insulation plate connected to the output end of the pushing device on one side of the fixture mounting block, and a side fixture that matches the mobile phone shell mold on the other side of the fixture mounting block.

[0010] As a preferred embodiment of this utility model, the second corner shaping mold further includes a first lifting device whose output end is connected to the base, and a first guide stabilizing slide rod group that is slidably disposed on the worktable and connected to the base.

[0011] A preferred embodiment of this utility model is as follows: the first fixed mold includes a second lifter located on the top of the support component and a second guide stabilizing slide rod group slidably disposed around the second lifter on the support component. The output end of the second lifter is provided with a movable plate connected to the second guide stabilizing slide rod group. The bottom of the movable plate is provided with a first heating plate. The first heating plate is provided with a first mold pressing plate that matches the mobile phone case mold.

[0012] A preferred embodiment of this utility model is as follows: the second fixed mold includes a connecting plate fixed to the bottom of the middle partition, a second heating plate disposed at the bottom of the connecting plate, and a second mold pressing plate disposed on the second heating plate.

[0013] A preferred embodiment of this utility model includes a human-machine interface for adjusting the hot pressing time, temperature, and pressure values ​​of the corresponding first and second corner hot pressing modules, as well as a power button for controlling the operation of the corresponding first and second corner hot pressing modules.

[0014] The preferred embodiment of this utility model is that the hot pressing time of the first corner hot pressing module and the second corner hot pressing module is 5 seconds to 1 hour.

[0015] The preferred embodiment of this utility model is that the heating temperature of the first corner hot pressing module and the second corner hot pressing module is 20 degrees to 400 degrees.

[0016] The preferred embodiment of this utility model is that the pressure values ​​of the first corner hot pressing module and the second corner hot pressing module are 0.1MPa-1.0MPa.

[0017] Compared with existing technologies, the beneficial effects of this utility model are as follows: By setting multiple first corner hot-pressing modules and second corner hot-pressing modules on the workbench, multiple products can be formed at one time, greatly improving efficiency, significantly increasing space utilization and equipment efficiency, and drastically reducing energy costs for the same output; one person can operate one or more machines, reducing labor costs and significantly improving production efficiency. Simultaneously, each first corner hot-pressing module and second corner hot-pressing module can be individually controlled, enabling the hot-pressing of phone cases of different sizes, achieving various hot-pressing effects for phone cases, facilitating mass production, saving time, and improving efficiency. Attached Figure Description

[0018] Figure 1 This is the front view of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model from one perspective;

[0020] Figure 3 This is a schematic diagram of the structure of the first corner shaping mold in this utility model. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] Please see Figure 1 , Figure 2 and Figure 3This embodiment provides a hot press machine for the corners of a mobile phone case. This hot press machine is mainly used to hot press the corners of the four right-angled sides of the case into rounded corners so that they can fit the shape of the mobile phone. The hot press machine includes a worktable 10, on which a support component 20 is provided. The support component 20 is provided with five support guide rods 201, which are arranged on the top of the worktable 10. A middle partition plate 202 is fixed in the middle of the five support guide rods 201, and a top plate 203 is provided on the top of the five support guide rods 201. The support component 20 is provided with two independently controllable first corner hot press modules 30, and the worktable 10 below the first corner hot press modules 30 is provided with two independently controllable second corner hot press modules 40. Meanwhile, the workbench 10 is equipped with a human-machine interface 101 for controlling the hot pressing time, temperature and pressure values ​​of each first corner hot pressing module 30 and second corner hot pressing module 40, as well as a power button 102 for controlling the operation of the corresponding first corner hot pressing module 30 and second corner hot pressing module 40. The workbench 10 is also equipped with a master control button for controlling the simultaneous operation of the first corner hot pressing module 30 and second corner hot pressing module 40.

[0023] The first corner hot-pressing module 30 and the second corner hot-pressing module 40 are used to hot-press the corners of the phone case, turning the four right-angled sides of the case into rounded corners. The first corner hot-pressing module 30 includes a first corner shaping mold 301 mounted on the middle partition 202 for hot-pressing the phone case, turning the right-angled corners into rounded corners, and a first fixing mold 302 that closes with the first corner shaping mold 301 when pressed down to hot-press the phone case. The second corner hot-pressing module 40 includes a second fixing mold 401 mounted on the middle partition 202 and a second corner shaping mold 402 mounted on the worktable 10 that closes with the second fixing mold 401 when raised to hot-press the phone case. More specifically, the first corner shaping mold 301 and the second corner shaping mold 402 include a base 3010 and a phone case mold 301 mounted on the base 3010. 1. Slide rails are symmetrically provided on the bases 3010 on both sides of the mobile phone case mold 3011. The two slide rails are equipped with shell edge forming parts that can be pressed into the mobile phone case mold 3011 for hot pressing the corners of the mobile phone case. The bases 3010 are also provided with pushing devices 3012 that drive the hot pressing side jigs 3016 to move toward the mobile phone case mold 3011. In this embodiment, the pushing device 3012 can be a cylinder. After the mobile phone case to be hot pressed is placed on the first corner shaping mold 301 of the first corner hot pressing module 30 and the second corner shaping mold 402 of the second corner hot pressing module 40, the master control button is pressed to make the first fixed mold 302 move down to close with the first corner shaping mold 301 to hot press the mobile phone case, and the second corner shaping mold 402 rises to close with the second fixed mold 401 to hot press the mobile phone case, realizing multi-mold processing on one machine and high working efficiency.

[0024] In one embodiment, the second corner shaping mold 402 further includes a first lifter 403 whose output end is connected to the base 3010, and a first guide stabilizing slide bar assembly 404 slidably disposed on the worktable 10 and connected to the base 3010. The first lifter 403 enables the base 3010 to drive the mobile phone case mold 3011 to rise and fall, while the first guide stabilizing slide bar assembly 404 ensures the stability of the rise and fall, effectively guaranteeing the yield of the mobile phone case during processing. In this embodiment, the first lifter 403 can be a hydraulic cylinder, an electric cylinder, or other driving devices.

[0025] More specifically, the first fixed mold 302 includes a second lifting device 303 disposed on the top plate 203 and a second guide stabilizing slide rod assembly 304 slidably disposed around the second lifting device 303 on the top plate 203. The output end of the second lifting device 303 is provided with a movable plate 305 connected to the second guide stabilizing slide rod assembly 304. The bottom of the movable plate 305 is provided with a first heating plate 306. The first heating plate 306 is provided with a first mold pressing plate that matches the phone case mold 3011. The first heating plate 306 heats the first mold pressing plate, causing it to press against the phone case mold 3011, resulting in rapid softening of the phone case and rapid shaping of its four corners. In this embodiment, the second lifting device 303 can be a hydraulic cylinder, an electric cylinder, or other driving devices.

[0026] The second fixed mold 401 includes a connecting plate 4010 fixed to the bottom of the middle partition 202, a second heating plate 4011 disposed at the bottom of the connecting plate 4010, and a second mold pressing plate disposed on the second heating plate 4011. The second mold pressing plate is heated by the second heating plate 4011, so that when the second mold pressing plate and the mobile phone case mold 3011 are pressed together, the second mold pressing plate heats the mobile phone case, the mobile phone case softens quickly, and the four corners of the mobile phone case are quickly formed.

[0027] In an optional embodiment, the outer shell edge forming component includes a bottom heat insulation plate 3013 slidably mounted on a slide rail. The bottom heat insulation plate 3013 is provided with a jig mounting block 3014 having a heating tube. One side of the jig mounting block 3014 is provided with a side heat insulation plate 3015 connected to the output end of the pushing device 3012. The other side of the jig mounting block 3014 is provided with a side jig 3016 that matches the mobile phone shell mold 3011. The jig mounting block 3014 is heated by the heating tube, and the jig mounting block 3014 transfers heat to the side jig 3016. When the two side jigs 3016 are pressed with the mobile phone shell mold 3011, the mobile phone shell is softened, and the straight edges of the four corners of the mobile phone shell are hot-pressed into rounded edges.

[0028] In summary, the working principle of this mobile phone case corner hot press is as follows: The mobile phone case to be hot-pressed is placed on the corresponding mobile phone case mold 3011. The equipment is started, and the first lifting device 403 on the second corner hot pressing module 40 drives the base 3010 to rise, causing the mobile phone case mold 3011 on the second corner shaping mold 402 to rise and press against the lower pressure plate of the second mold. The second heating plate 4011 heats the lower pressure plate of the second mold. Simultaneously, the pushing devices 3012 on both sides of the base 3010 push the side fixture 3016 to press against the mobile phone case mold 3011. The fixture mounting block 3014 presses against the side fixture 3016. Heating is performed to hot-press the phone case, turning the straight edges of the four corners of the phone case into rounded edges. Similarly, the second lifting device 303 on the first corner hot-pressing module 30 drives the first heating plate 306 to move the first mold lower pressure plate down, so that the first mold lower pressure plate presses against the phone case mold 3011 on the first corner shaping mold 301. At the same time, the pushing devices 3012 on both sides of the base 3010 push the side fixture 3016 to press against the phone case mold 3011. The fixture mounting block 3014 heats the side fixture 3016, thereby achieving hot pressing of the phone case, so as to realize the simultaneous processing of multiple phone cases.

[0029] In an optional embodiment, the heating temperature, heating time, and pressure value of each first corner hot pressing module 30 and the second corner hot pressing module 40 are set according to the specifications of the sheet material. For example, the temperature can be set to 20 degrees, 400 degrees, or 150 degrees, etc., depending on the real-time requirements. The heating time can be set according to the heating temperature and the specifications of the sheet material, and can generally be set between 5 seconds and 1 hour. The pressure value is set according to the heating temperature, heating time, and the specifications of the sheet material, and can generally be set between 0.1 MPa and 1.0 MPa. It should be noted that the above values ​​are only the values ​​used in this embodiment. In other embodiments, they can be set according to the real-time processing situation, which will not be elaborated in this embodiment.

[0030] Since each of the first corner hot pressing module 30 and the second corner hot pressing module 40 can be controlled independently, when it is necessary to process different specifications of plates at the same time, the hot pressing time, temperature and pressure values ​​of each of the first corner hot pressing module 30 and the second corner hot pressing module 40 can be adjusted according to the real-time specifications of the plates. By changing the mobile phone case mold 3011 and the side heat insulation plate 3015, the processing of multiple mobile phone cases can be realized on the same machine. The equipment is highly practical, meets the needs of different customers, and effectively improves the competitiveness of the equipment in the market.

[0031] This invention, by setting multiple first corner hot-pressing modules 30 and second corner hot-pressing modules 40 on the workbench, allows for the simultaneous molding of multiple products, greatly improving efficiency, space utilization, and equipment efficiency, while significantly reducing energy costs for the same output. One person can operate one or more machines, reducing labor costs and significantly increasing production efficiency. Furthermore, each first corner hot-pressing module 30 and second corner hot-pressing module 40 can be individually controlled, enabling the hot-pressing of phone cases of different sizes, achieving various hot-pressing effects for different phone cases, facilitating mass production, saving time, and improving efficiency.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a limitation of quantity, but rather indicate the presence of at least one.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A hot pressing machine for the corner edges of a mobile phone case, characterized in that, include: The workbench is equipped with a support component with a middle partition plate. The support component is equipped with multiple first corner hot pressing modules that can be independently controlled and operated for hot pressing. The workbench below the first corner hot pressing modules is equipped with multiple second corner hot pressing modules that can be independently controlled and operated for hot pressing. The first corner hot pressing module includes a first corner shaping mold disposed on the middle partition for hot pressing the phone case, so that the corners of the phone case are hot pressed from right angles to rounded corners, and a first fixing mold that is closed with the first corner shaping mold when pressed down to hot press the phone case. The second corner hot pressing module includes a second fixed mold disposed on the middle partition and a second corner shaping mold disposed on the worktable and which, when raised, closes with the second fixed mold to hot press the phone case. The first and second corner shaping molds include a base and a mobile phone case mold on the base. Slide rails are symmetrically provided on the base on both sides of the mobile phone case mold. Shell edge forming components that can be pressed into the mobile phone case mold for hot pressing the corners of the mobile phone case are slidably provided on both slide rails. The base is also provided with a pushing device that drives the hot pressing side fixture to move toward the mobile phone case mold.

2. The hot press for the corner of a mobile phone case according to claim 1, characterized in that, The outer shell edge forming component includes a bottom heat insulation plate that slides on the slide rail. The bottom heat insulation plate is provided with a fixture mounting block with a heating tube. One side of the fixture mounting block is provided with a side heat insulation plate that is connected to the output end of the pushing device. The other side of the fixture mounting block is provided with a side fixture that matches the mobile phone case mold.

3. The hot press for the corner of a mobile phone case according to claim 1, characterized in that, The second corner shaping mold also includes a first lifter whose output end is connected to the base, and a first guide stabilizing slide block assembly that is slidably mounted on the worktable and connected to the base.

4. The hot press for the corner of a mobile phone case according to claim 2, characterized in that, The first fixed mold includes a second lifter located on top of the support component and a second guide stabilizing slide rod assembly slidably around the second lifter on the support component. The output end of the second lifter is provided with a movable plate connected to the second guide stabilizing slide rod assembly. The bottom of the movable plate is provided with a first heating plate. The first heating plate is provided with a first mold pressing plate that matches the mobile phone case mold.

5. The hot press for the corner of a mobile phone case according to claim 2, characterized in that, The second fixed mold includes a connecting plate fixed to the bottom of the middle partition, a second heating plate disposed at the bottom of the connecting plate, and a second mold pressing plate disposed on the second heating plate.

6. The hot press for the corner of a mobile phone case according to claim 1, characterized in that, It also includes a human-machine interface that allows adjustment of the hot pressing time, temperature, and pressure values ​​of the corresponding first and second corner hot pressing modules, as well as a power button that controls the operation of the corresponding first and second corner hot pressing modules.

7. The hot press for the corner of a mobile phone case according to claim 6, characterized in that, The hot pressing time for the first and second corner hot pressing modules is 5 seconds to 1 hour.

8. The hot press for the corner of a mobile phone case according to claim 6, characterized in that, The heating temperature of the first and second corner hot pressing modules is 20 degrees to 400 degrees.

9. The hot press for the corner of a mobile phone case according to claim 6, characterized in that, The pressure values ​​of the first and second corner hot pressing modules are 0.1MPa-1.0MPa.