High-pressure forming machine for rear cover of mobile phone

By setting different installation stations on the high-pressure forming machine, different molding molds can be installed, which solves the problems of high manufacturing cost and poor versatility when processing the back cover of mobile phones with different materials, and achieves efficient and stable multi-function molding.

CN222858727UActive Publication Date: 2025-05-13TONGDA (SHISHI) TECH CO LTD
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Patent Information

Application Number
CN202421823700.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-30
Publication Date
2025-05-13
Estimated Expiration
2034-07-30

AI Technical Summary

Technical Problem

When existing high-pressure molding machines process mobile phone back covers made of different materials, the manufacturing cost is high and the versatility is poor, and they cannot effectively deal with the difference in pressure tolerance of different materials, resulting in frequent damage or damage after molding.

Method used

A high-pressure molding machine with the back cover of a mobile phone is designed. By setting different installation stations on the frame, different molding molds can be installed as needed, achieving dual-use dual-use of the high-pressure molding machine, with a wider range of application and reducing manufacturing costs.

Benefits of technology

It realizes the versatility and scope of application of high-pressure molding machines, reduces manufacturing costs, simplifies the replacement process of different molding molds, and improves the stability and efficiency of processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-pressure forming machine of a mobile phone rear cover, and relates to the technical field of mobile phone rear cover forming, the high-pressure forming machine comprises a first mounting plate and a second mounting plate which are mounted in a rack, the first mounting plate and the second mounting plate are provided with a first mounting station and a second mounting station, the first mounting station comprises a first T-shaped groove and a second T-shaped groove, and the second mounting station comprises a second T-shaped groove and a second T-shaped groove. A first connecting hole and a second connecting hole are concavely formed in the first T-shaped groove and the second T-shaped groove respectively, and the first forming die is connected in the first connecting hole and the second connecting hole through a first fastener and a second fastener; the second mounting station comprises a first mounting groove, a third connecting hole is concavely formed in the first mounting groove, the second forming die comprises a second lower die plate, a second upper die plate and a first pressing plate which are hinged to each other, the second lower die plate and the first pressing plate are provided with a first convex block and a first convex edge respectively, the first convex edge is provided with a first open groove, and the first open groove is provided with a third fastener; according to the utility model, different forming dies can be replaced quickly and conveniently, and the application range is wide.
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Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone back cover molding, in particular to a high-pressure molding machine for mobile phone back covers. Background Art

[0002] Most of the mobile phone back covers on the market are made of plastic. In order to prevent the surface pattern from being scratched, the pattern layer is generally set on the back of the battery back cover, so that the pattern can keep the color bright for a long time and not fade easily, which is also the social demand. However, the hardness of the mobile phone back cover made of this plastic material is slightly poor, not only can it not show the bright effect, but the hardness of the mobile phone back cover made of it also does not meet the use requirements.

[0003] Therefore, with the update of the molding process of mobile phone back covers, mobile phone back covers made of multi-layer composite materials have gradually replaced those made of pure plastic materials. Multi-layer composite molding mainly includes materials such as plastic, glass fiber, fiber reinforced composite materials and metal. During processing, a variety of materials are placed in the molding mold of a high-pressure molding machine for high-pressure molding, and then surface processing is performed to form a composite board mobile phone back cover.

[0004] The structure of the existing high-pressure forming machine includes a frame, in which an upper template and a lower template are arranged in sequence from top to bottom, wherein the upper surface of the lower template is concave with a forming cavity, and the lower template is located in the forming cavity and convexly provided with a plurality of forming structures that match the shape of the back cover of the mobile phone, and the lower surface of the upper template is convexly provided with a plurality of forming protrusions that correspond to the position of the forming cavity of the lower template and match the shape, and the upper template is driven to approach or move away from the lower template by a hydraulic mechanism in the frame, and cooperates with the heating mechanism in the frame to conduct heat through the upper and lower templates to the mold cavity, thereby completing the molding process of the back cover of the mobile phone.

[0005] However, in actual processing applications, since the pressure tolerance of various materials is different, the back cover of the mobile phone is often broken or damaged due to excessive pressure after being formed. Therefore, a special mold is required when processing the back cover of the mobile phone formed by a composite of multiple materials. Since the existing high-pressure molding machine does not have a pre-reserved installation position for installing such a special mold, a high-pressure molding machine equipped with a special mold is required when making the back cover of the mobile phone formed by a composite of multiple materials, which increases the manufacturing cost and has poor versatility.

[0006] In view of this, the inventor conducted in-depth research on the above-mentioned issues, which led to the creation of this case. Utility Model Content

[0007] The utility model provides a high pressure forming machine for a mobile phone back cover, aiming to solve the problems of high manufacturing cost and poor versatility when the high pressure forming machine processes mobile phone back covers made of different materials.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0009] A high-pressure molding machine for a mobile phone back cover comprises a frame, a first mounting plate is installed inside the frame, a second mounting plate which can be close to or away from the first mounting plate is arranged above the first mounting plate, a first mounting station and a second mounting station for mounting a first molding die and a second molding die are recessed on the opposite sides of the first mounting plate and the second mounting plate, the first mounting station comprises a first T-shaped groove recessed on the first mounting plate and a second T-shaped groove recessed on the second mounting plate, a plurality of first connecting holes and a second connecting holes are recessed at the bottom of the first T-shaped groove and the second T-shaped groove respectively arranged at intervals along the length direction, the first molding die comprises a first lower template and a first upper template, the first lower template and the first upper template are respectively fastened by a first fastener and a second fastener The part is locked and connected in the first connecting hole and the second connecting hole; with the length direction of the T-slot as the front-to-back direction, the above-mentioned second installation station includes first mounting grooves respectively recessed on the left and right sides of the second mounting plate and perpendicular to the second T-slot, and the bottom of the above-mentioned first mounting grooves are recessed with a plurality of third connecting holes arranged at intervals along the length direction. The above-mentioned second molding mold includes a second lower template and a second upper template hinged to each other and a first pressing plate detachably mounted on the second mounting plate, and the bottom surface of the above-mentioned second lower template is convexly provided with two first protrusions for plugging and cooperating with the first T-slot, and the first pressing plate is convexly provided with first convex edges on the left and right sides of the above-mentioned first pressing plate, and the first convex edges on each side are provided with two first slots corresponding to the position of the first mounting groove, and each first slot is provided with a third fastener for screwing with the third connecting hole.

[0010] Furthermore, the first lower template and the first upper template are respectively provided with a second flange and a third flange on the front and rear sides, and the second flange and the third flange are respectively provided with a second opening groove and a third opening groove corresponding to the positions of the first T-shaped slot and the second T-shaped slot, and the first fastener and the second fastener respectively pass through the second opening groove and the third opening groove and are screwed with the first connecting hole and the second connecting hole.

[0011] Further, the first fastener includes a first elongated fastening plate and a first screw, the first fastening plate includes a first fastening hole opened in the middle thereof and first supporting bosses protruding on both sides of the first fastening hole, the first screw passes through the first fastening hole and is screwed to the first connecting hole, and the first supporting boss abuts against the second convex edge; the second fastener includes a second elongated fastening plate and a second screw, the second fastening plate includes a second fastening hole opened in the middle thereof and second supporting bosses protruding on both sides of the second fastening hole, the second screw passes through the second fastening hole and is screwed to the second connecting hole, and the second supporting boss abuts against the third convex edge.

[0012] Furthermore, the mating surface of the above-mentioned first lower template is concavely provided with multiple first cavities, and the bottom of each first cavity is provided with a first inverted mold core that matches the shape of the back cover of the mobile phone, and the mating surface of the above-mentioned first upper template is convexly provided with multiple first cores that are adapted to the first inverted mold core of the first lower template.

[0013] Furthermore, first positioning columns are convexly provided at four corners of the first lower template; and first positioning holes for the first positioning columns to enter are concavely provided at four corners of the mating surface of the first upper template.

[0014] Furthermore, the mating surface of the above-mentioned second lower template is concavely provided with multiple second cavities, and the bottom of each second cavity is provided with a second inverted mold core that matches the shape of the back cover of the mobile phone, and the mating surface of the above-mentioned second upper template is convexly provided with multiple second cores that are adapted to the second inverted mold core of the second lower template.

[0015] Furthermore, the third fastener includes a third fastening plate and a third screw in the form of an elongated strip. The third fastening plate includes a third fastening hole opened in the middle thereof and third supporting bosses protruding on both sides of the third fastening hole. The third screw passes through the third fastening hole and is screwed to the third connecting hole. The second supporting boss abuts against the third convex edge.

[0016] Furthermore, the rear side surface of the second lower template and the rear side surface of the second upper template are respectively fixed with a first hinge seat and a second hinge seat that are hingedly matched with each other, and the front side surface of the second upper template is fixed with a handle for opening and closing the second molding mold.

[0017] From the above description of the structure of the utility model, it can be seen that the utility model has the following advantages:

[0018] First, the first mounting plate and the second mounting plate of the frame of the utility model are provided with a first mounting station and a second mounting station for mounting the first molding die and the second molding die, wherein the first mounting station comprises a first T-shaped slot recessed on the first mounting plate and a second T-shaped slot recessed on the second mounting plate, the bottoms of the first T-shaped slot and the second T-shaped slot are respectively recessed with a plurality of first connecting holes and a second connecting holes arranged at intervals along the length direction, the first molding die comprises a first lower template and a first upper template which are locked and connected in the first connecting hole and the second connecting hole by means of a first fastener and a second fastener, and the second mounting station comprises a first T-shaped slot recessed on the left side and the right side of the second mounting plate, respectively. The first mounting groove is perpendicular to the second T-slot, and the bottom of the first mounting groove is concavely provided with a plurality of third connecting holes arranged at intervals along the length direction. The second molding die comprises a second lower template and a second upper template hinged to each other and a first pressing plate detachably mounted on the second mounting plate, and the bottom surface of the second lower template is convexly provided with two first protrusions for plugging and cooperating with the first T-slot. The utility model arranges different installation stations on the high-pressure molding machine, so that different molding molds can be installed according to the needs of use in actual production, thereby realizing the dual-purpose of the high-pressure molding machine, improving the scope of application, reducing the manufacturing cost, and being more convenient when using different molding molds. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model in which a second forming mold is installed on the frame.

[0020] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0021] Figure 3 It is a structural schematic diagram of the second lower template of the utility model.

[0022] Figure 4 It is a structural schematic diagram of the second upper template of the utility model.

[0023] Figure 5 It is a structural schematic diagram of the utility model in which the first pressing plate is installed on the second mounting plate.

[0024] Figure 6 It is a structural schematic diagram of the utility model in which a first forming mold is installed on the frame.

[0025] Figure 7 It is a structural schematic diagram of the first lower template of the utility model.

[0026] Figure 8 It is a structural schematic diagram of the first upper template of the utility model.

[0027] Reference numerals: 10-frame; 20-first mounting plate; 21-first T-slot; 22-first connecting hole; 30-second mounting plate; 31-second T-slot; 32-second connecting hole; 33-first mounting slot; 34-third connecting hole; 41-first lower template; 411-second flange; 412-second opening slot; 413-first cavity; 414-first inverted core; 415-first positioning column; 42-second upper template; 421-third flange; 422-third opening slot; 423-first core; 424-first positioning hole; 51-first fastening plate; 52-first screw; 53-first supporting boss; 54-second fastening plate; 55-second screw; 56-second supporting boss; 61-second lower template; 611-first protrusion; 612-second cavity; 613-second inverted core; 614-first hinge seat; 62-second upper template; 621-second core; 622-second hinge seat; 623-handle; 63-first pressure plate; 64-first flange; 641-first slot; 71-third fastening plate; 72-third screw; 73-third supporting boss. DETAILED DESCRIPTION

[0028] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0029] Since the structure of the high pressure forming machine and how to perform high pressure forming on the back cover of a mobile phone are technologies disclosed in the art, they will not be described in detail here. The specific improvements will be further described below.

[0030] Reference Figures 1 to 8A high-pressure molding machine for a mobile phone back cover comprises a frame 10, a first mounting plate 20 is fixedly installed inside the frame 10, a second mounting plate 30 which can be close to or away from the first mounting plate 20 is arranged above the first mounting plate 20, a first mounting station and a second mounting station for mounting a first molding die and a second molding die are recessed on the first mounting plate 20 and the second mounting plate 30 on the opposite sides thereof, the first mounting station comprises a first T-shaped slot 21 recessed on the first mounting plate 20 and a second T-shaped slot 31 recessed on the second mounting plate 30, a plurality of first connecting holes 22 and a second connecting holes 32 arranged at intervals along the length direction are recessed at the bottom of the first T-shaped slot 21 and the second T-shaped slot 31, wherein the first molding die comprises a first lower template 41 and a first upper template 42, the first lower template 41 and the first upper template 42 are respectively locked and connected by a first fastener and a second fastener In the first connecting hole 22 and the second connecting hole 32; taking the length direction of the T-slot as the front-to-back direction, the second installation station includes a first mounting groove 33 respectively recessed on the left and right sides of the second mounting plate 30 and perpendicular to the second T-slot 31, and the bottom of the first mounting groove 33 is recessed with a plurality of third connecting holes 34 arranged at intervals along the length direction, and the second molding mold includes a second lower template 61 and a second upper template 62 hinged to each other and a first pressing plate 63 detachably mounted on the second mounting plate 30, and the bottom surface of the second lower template 61 is convexly provided with two first protrusions 611 for plugging and cooperating with the first T-slot 21, and the left and right sides of the first pressing plate 63 are convexly provided with first convex edges 64, and the first convex edge 64 on each side is provided with two first slots 641 corresponding to the position of the first mounting groove 33, and each first slot 641 is provided with a third fastener for screwing with the third connecting hole 34.

[0031] During application, by setting different installation stations on the high-pressure forming machine, different forming molds can be installed according to the needs of use, thus realizing the dual-purpose of the high-pressure forming machine, with a wider range of applications and easier replacement.

[0032] Reference Figures 1 to 8The first lower template 41 and the first upper template 42 are respectively provided with a second flange 411 and a third flange 421 on the front and rear sides, and the second flange 411 and the third flange 421 are respectively provided with a second opening groove 412 and a third opening groove 422 corresponding to the positions of the first T-slot 21 and the second T-slot 31. The first fastener includes a first strip-shaped fastening plate 51 and a first screw 52. The first fastening plate 51 includes a first fastening hole (not shown in the figure) opened in the middle thereof and first supporting bosses 53 convexly provided on both sides of the first fastening hole. The first screw 52 passes through the first fastening hole and is screwed to the first connecting hole 22, so that the first lower template 41 can be detachably mounted on the first mounting plate 20. Moreover, since the first supporting boss 53 abuts against the second flange 411, the first fastening plate 51 and the first mounting plate 20 are increased. The contact area of ​​the first lower template 41 improves the stability of the connection, so that the first lower template 41 is not easy to move when subjected to external force, and can effectively prevent the first screw 52 from loosening; the second fastener includes a second fastening plate 54 and a second screw 55 in the shape of an elongated strip, and the second fastening plate 54 includes a second fastening hole (not shown in the figure) opened in the middle thereof and second supporting bosses 56 protruding on both sides of the second fastening hole. The second screw 55 passes through the second fastening hole and is screwed to the second connecting hole 32, so that the first upper template 42 can be detachably mounted on the second mounting plate 30, and because the second supporting boss 56 abuts against the second flange 411, the force borne by the second screw 55 is evenly distributed on the first upper template 42, thereby improving the stability of the connection and effectively preventing the second screw 55 from loosening.

[0033] Reference Figures 1 to 8 The mating surface of the first lower template 41 is concavely provided with a plurality of first cavities 413, and the bottom of each first cavity 413 is provided with a first inverted mold core 414 that matches the shape of the back cover of the mobile phone. The mating surface of the first upper template 42 is convexly provided with a plurality of first cores 423 that are adapted to the first inverted mold core 414 of the first lower template 41. When the mold is closed, the first core 423 is inserted into the first inverted mold core 414, thereby jointly completing the molding of the back cover of the mobile phone, and the four corners of the first lower template 41 are convexly provided with first positioning columns 415, and the four corners of the mating surface of the first upper template 42 are concavely provided with first positioning holes 424 for the first positioning columns 415 to enter. Through such an arrangement, the positioning accuracy and stability of the first upper template 42 and the first lower template 41 when the mold is closed are improved, and the mold misalignment is avoided.

[0034] Reference Figures 1 to 8The second lower mold surface 61 is concavely provided with a plurality of second cavities 612, and the bottom of each second cavity 612 is provided with a second inverted mold core 613 that matches the shape of the back cover of the mobile phone. The second upper mold surface 62 is convexly provided with a plurality of second cores 621 that are adapted to the second inverted mold core 613 of the second lower mold surface 61. When the mold is closed, the second core 621 is inserted into the second inverted mold core 613, thereby jointly completing the molding of the back cover of the mobile phone; the third fastener includes a third fastening plate 71 and a third screw 72 in a long strip shape, and the third fastening plate includes a third fastening hole (not shown in the figure) opened in the middle thereof and third supporting bosses 7 convexly provided on both sides of the third fastening hole 3. The first pressing plate 63 is detachably mounted on the second mounting plate 30 by passing the third screw 72 through the third fastening hole and being screwed with the third connecting hole 34. Since the third supporting boss 73 abuts against the first flange 64, the force borne by the third screw 72 can be evenly distributed on the first pressing plate 63, thereby improving the stability of the connection and effectively preventing the third screw 72 from loosening. The rear side surface of the second lower template 61 and the rear side surface of the second upper template 62 are respectively fixed with a first hinge seat 614 and a second hinge seat 622 for realizing hinged cooperation, and the front side surface of the second upper template 62 is fixed with a handle 623 for opening and closing the second molding mold.

[0035] The first mounting plate 20 and the second mounting plate 30 of the frame of the utility model are provided with a first mounting station and a second mounting station for mounting the first molding die and the second molding die, wherein the first mounting station comprises a first T-shaped slot 21 recessed on the first mounting plate 20 and a second T-shaped slot 31 recessed on the second mounting plate 30, the bottoms of the first T-shaped slot 21 and the second T-shaped slot 31 are respectively recessed with a plurality of first connecting holes 22 and second connecting holes 32 spaced apart along the length direction, the first molding die comprises a first lower template 41 and a first upper template 42 locked and connected in the first connecting hole 22 and the second connecting hole 32 by means of a first fastener and a second fastener, the second mounting station comprises recessed on the left and right sides of the second mounting plate The first mounting groove 33 is on the side and perpendicular to the second T-slot 31, and the bottom of the first mounting groove 33 is recessed with a plurality of third connecting holes 34 arranged at intervals along the length direction. The second molding die includes a second lower template 61 and a second upper template 62 hinged to each other and a first pressing plate 63 detachably mounted on the second mounting plate 30. The bottom surface of the second lower template 61 is convexly provided with two first protrusions 611 for plugging and cooperating with the first T-slot 21. The utility model arranges different installation stations on the high-pressure molding machine, so that different molding molds can be installed according to the needs in actual production, thereby realizing the dual-purpose of the high-pressure molding machine, improving the scope of application, reducing the manufacturing cost, and being more convenient when using different molding molds.

[0036] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A high pressure forming machine for a mobile phone back cover, comprising a frame, characterized in that: The frame is provided with a first mounting plate inside, a second mounting plate which can be close to or away from the first mounting plate is provided above the first mounting plate, a first mounting station and a second mounting station for mounting the first molding die and the second molding die are recessed on the first mounting plate and the second mounting plate face each other, the first mounting station comprises a first T-shaped slot recessed on the first mounting plate and a second T-shaped slot recessed on the second mounting plate, a plurality of first connecting holes and a second connecting holes are recessed at the bottom of the first T-shaped slot and the second T-shaped slot respectively arranged at intervals in the length direction, the first molding die comprises a first lower template and a first upper template, the first lower template and the first upper template are respectively locked and connected to the first connecting station by a first fastener and a second fastener The second connecting hole and the second connecting hole; taking the length direction of the T-slot as the front-to-back direction, the second installation station includes a first mounting groove respectively recessed on the left and right sides of the second mounting plate and perpendicular to the second T-slot, the bottom of the first mounting groove is recessed with a plurality of third connecting holes arranged at intervals along the length direction, the second molding mold includes a second lower template and a second upper template hinged to each other and a first pressing plate detachably mounted on the second mounting plate, the bottom surface of the second lower template is convexly provided with two first protrusions for plugging and cooperating with the first T-slot, the left and right sides of the first pressing plate are convexly provided with first convex edges, the first convex edges on each side are provided with two first slots corresponding to the position of the first mounting slot, and each first slot is provided with a third fastener for screwing with the third connecting hole.

2. The high pressure forming machine for the mobile phone back cover according to claim 1, characterized in that: The first lower template and the first upper template are respectively provided with a second flange and a third flange on the front and rear sides, the second flange and the third flange are respectively provided with a second opening groove and a third opening groove corresponding to the positions of the first T-shaped slot and the second T-shaped slot, the first fastener and the second fastener respectively pass through the second opening groove and the third opening groove and are screwed with the first connecting hole and the second connecting hole.

3. The high pressure forming machine for the mobile phone back cover according to claim 2, characterized in that: The first fastener includes a first fastening plate in the form of an elongated strip and a first screw, the first fastening plate including a first fastening hole opened in the middle thereof and first supporting bosses protruding on both sides of the first fastening hole, the first screw passes through the first fastening hole and is screwed to the first connecting hole, and the first supporting boss abuts against the second convex edge; the second fastener includes a second fastening plate in the form of an elongated strip and a second screw, the second fastening plate including a second fastening hole opened in the middle thereof and second supporting bosses protruding on both sides of the second fastening hole, the second screw passes through the second fastening hole and is screwed to the second connecting hole, and the second supporting boss abuts against the third convex edge.

4. The high pressure forming machine for the mobile phone back cover according to claim 1, characterized in that: The mating surface of the first lower template is concavely provided with multiple first cavities, and the bottom of each first cavity is provided with a first inverted mold core that matches the shape of the back cover of the mobile phone. The mating surface of the first upper template is convexly provided with multiple first cores that are adapted to the first inverted mold core of the first lower template.

5. The high pressure forming machine for the mobile phone back cover according to claim 4, characterized in that: The four corners of the first lower template are all convexly provided with first positioning columns; the four corners of the mating surface of the first upper template are all concavely provided with first positioning holes for the first positioning columns to enter.

6. The high pressure forming machine for the mobile phone back cover according to claim 1, characterized in that: The second lower mold surface is concavely provided with a plurality of second cavities, and the bottom of each second cavity is provided with a second inverted mold core that matches the shape of the back cover of the mobile phone. The second upper mold surface is convexly provided with a plurality of second cores that are adapted to the second inverted mold core of the second lower mold.

7. The high pressure forming machine for the mobile phone back cover according to claim 3, characterized in that: The third fastener includes a third fastening plate and a third screw in an elongated shape. The third fastening plate includes a third fastening hole opened in the middle thereof and third supporting bosses protruding on both sides of the third fastening hole. The third screw passes through the third fastening hole and is screwed to the third connecting hole. The second supporting boss abuts against the third convex edge.

8. The high pressure forming machine for the mobile phone back cover according to claim 1, characterized in that: The rear side surface of the second lower template and the rear side surface of the second upper template are respectively fixed with a first hinge seat and a second hinge seat that are hingedly matched with each other, and the front side surface of the second upper template is fixed with a handle for opening and closing the second molding mold.