Mould convenient for demoulding of mirror frame

Abstract

The utility model belongs to the technical field of glasses processing, and particularly relates to a mold convenient for demolding a glasses frame, which comprises an upper mold, a lower mold, an upper mold core, a lower mold core and a tabletting assembly, the upper mold core, the lower mold core and the tabletting assembly are used for molding the glasses frame, the tabletting assembly is detachably arranged between the upper mold core and the lower mold core, the upper mold core is provided with an upper accommodating groove, and the lower mold core is provided with a lower accommodating groove. The lower side of the upper mold core abuts against the upper surface of the tablet pressing assembly, and the upper side of the lower mold core abuts against the lower surface of the tablet pressing assembly. According to the mold, the upper containing groove in the upper mold core, the lower mold groove in the lower mold core and the pressing piece assembly are matched for mold pressing, so that the mirror frame is formed, the pressing piece assembly is detachably arranged between the upper mold core and the lower mold core, the pressing piece assembly can be separated from the mirror frame together in the demolding process, and the contact area of the mirror frame and the lower mold core in the demolding process is reduced; and the demolding process of the mirror frame can be completed by separately digging out the pressing piece assembly from the mirror frame which is separated from the lower mold core.

Description

[Technical field]

[0001] The present application belongs to the technical field of eyeglass processing, and in particular relates to a mold that facilitates demoulding of eyeglass frames. [Background technology]

[0002] In the current frame injection molding process, the injection molding process is usually completed using an upper mold and a lower mold. A mold cavity is formed between the upper mold and the lower mold. The molten plastic material is then injected into the mold cavity to fill the entire mold cavity, and finally cooled and hardened to form a frame product. Then, the molded frame is taken out by separating the upper mold and the lower mold.

[0003] However, when removing the frame from the lower mold using the traditional injection molding method, due to the large contact surface between the frame and the lower mold, local force removal may damage the frame or cause deformation of the frame, increasing production and maintenance costs. [Contents of the utility model]

[0004] In order to solve the problem that the conventional injection molding method in the prior art easily damages the frame or causes the frame to deform when the frame is removed from the lower mold core, the present application provides a mold that facilitates demoulding of the frame.

[0005] This application is implemented through the following technical solutions:

[0006] A mold for facilitating demoulding of a spectacle frame comprises an upper mold, a lower mold, and an upper mold core, a lower mold core and a tablet pressing assembly for molding the spectacle frame, wherein the upper mold core is fixedly arranged on the upper mold, the lower mold core is fixedly arranged on the lower mold, and the tablet pressing assembly is detachably arranged between the upper mold core and the lower mold core, an upper receiving groove is provided on the upper mold core, and a lower receiving groove is provided on the lower mold core, the upper receiving groove and the lower receiving groove are arranged corresponding to each other, the lower side of the upper mold core contacts the upper surface of the tablet pressing assembly, and the upper side of the lower mold core contacts the lower surface of the tablet pressing assembly.

[0007] As described above, in a mold that facilitates demoulding of a frame, when the upper surface and the lower surface of the pressing assembly respectively contact the lower side of the upper mold core and the upper side of the lower mold core, the upper receiving groove cooperates with the lower receiving groove to form a frame cavity for molding the frame.

[0008] In the mold for facilitating demoulding of a spectacles frame as described above, the pressing assembly comprises a spectacles frame membrane and a positioning mechanism for retaining the spectacles frame membrane within the contour of the lower receiving groove.

[0009] In the mold for facilitating demoulding of a mirror frame as described above, the positioning mechanism includes a first positioning post provided on the lower mold core and located within the contour of the lower receiving groove, and a first positioning hole provided on the mirror frame membrane and for the first positioning post to pass through.

[0010] In the mold for facilitating demoulding of a spectacles frame as described above, the positioning mechanism further comprises a second positioning post provided on the upper mold core and located within the contour of the upper receiving groove, and a second positioning hole provided on the spectacles frame membrane and for the second positioning post to pass through.

[0011] The mold for facilitating demoulding of a mirror frame as described above comprises three first positioning posts distributed in a triangle.

[0012] As described above, a mold that facilitates demoulding of a spectacles frame, the spectacles frame cavity includes a rib cavity and two lens cavities, and the rib cavity is arranged between the two lens cavities.

[0013] In the mold for facilitating demoulding of a spectacles frame as described above, the spectacles frame membrane is provided with a bevel, and the bevel is arranged around the outer side of the spectacles frame membrane.

[0014] In the mold for facilitating demoulding of a mirror frame as described above, a chamfer is provided on one side of the first positioning column close to the mirror frame membrane.

[0015] Compared with the prior art, this application has the following advantages:

[0016] The present application discloses a mold for facilitating demoulding of eyeglass frames. The frame is formed by molding through the cooperation of an upper receiving groove on an upper mold core, a lower mold groove on a lower mold core, and a pressing sheet assembly. The pressing sheet assembly is detachably arranged between the upper mold core and the lower mold core, so that the pressing sheet assembly can be detached from the frame together with the eyeglass frame during demoulding, thereby reducing the contact area between the eyeglass frame and the lower mold core during demoulding, thereby preventing the frame from being damaged or deformed. The demoulding process of the eyeglass frame can then be completed by picking the pressing sheet assembly out of the frame that has been detached from the lower mold core. The pressing sheet assembly can be reused, thereby reducing costs and avoiding waste of materials.

Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 is a three-dimensional stereogram of the present application;

[0019] Figure 2 This is the decomposition view of this application Figure 1 ;

[0020] Figure 3 yes Figure 2 Magnified view at A in the middle;

[0021] Figure 4This is the decomposition view of this application Figure 2 ;

[0022] Figure 5 yes Figure 4 Magnified view at B in the middle;

[0023] Figure 6 It is a top view of the lower mold core in this application;

[0024] Figure 7 This is a schematic diagram of the decomposition of the frame diaphragm and the lower mold core;

[0025] Figure 8 It is a three-dimensional stereogram of the frame diaphragm. [Specific implementation method]

[0026] In order to make the technical problems, technical solutions and beneficial effects solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0027] See also Figures 1 to 8 A mold for facilitating demoulding of a mirror frame comprises an upper mold 1, a lower mold 2, an upper mold core 3, a lower mold core 4 and a tablet pressing assembly 5 for molding the mirror frame, the upper mold core 3 is fixedly arranged on the upper mold 1, the lower mold core 4 is fixedly arranged on the lower mold 2, the tablet pressing assembly 5 is detachably arranged between the upper mold core 3 and the lower mold core 4, an upper receiving groove 6 is provided on the upper mold core 3, a lower receiving groove 7 is provided on the lower mold core 4, the upper receiving groove 6 and the lower receiving groove 7 are arranged corresponding to each other, the lower side of the upper mold core 3 is in conflict with the upper surface of the tablet pressing assembly 5, and the upper side of the lower mold core 4 is in conflict with the lower surface of the tablet pressing assembly 5.

[0028] The present application discloses a mold for facilitating demoulding of eyeglass frames. The frame is formed by molding through the cooperation of an upper receiving groove on an upper mold core, a lower mold groove on a lower mold core, and a pressing sheet assembly. The pressing sheet assembly is detachably arranged between the upper mold core and the lower mold core, so that the pressing sheet assembly can be detached from the frame together with the eyeglass frame during demoulding, thereby reducing the contact area between the eyeglass frame and the lower mold core during demoulding, thereby preventing the frame from being damaged or deformed. The demoulding process of the eyeglass frame can then be completed by picking the pressing sheet assembly out of the frame that has been detached from the lower mold core. The pressing sheet assembly can be reused, thereby reducing costs and avoiding waste of materials.

[0029] Furthermore, as a preferred embodiment of the present invention but not a limitation, when the upper surface and the lower surface of the pressing assembly 5 respectively contact the lower side of the upper mold core 3 and the upper side of the lower mold core 4, the upper receiving groove 6 cooperates with the lower receiving groove 7 to form a frame cavity 8 for frame molding.

[0030] In this embodiment, the structure of the injection mold can be simplified, and the manufacturing cost and processing difficulty can be reduced. At the same time, the formed frame cavity can ensure that the plastic material is evenly filled during the injection molding process, thereby improving the precision of injection molding and the product quality. In addition, the matching design of the tablet assembly can also avoid damage between the mold core and the mold core seat and scratches on the contact surface, thereby extending the service life of the mold and further reducing the production and maintenance costs. In general, this design improves efficiency, reduces costs, and optimizes the manufacturing quality of the frame product during the injection molding process.

[0031] Further, as a preferred implementation of the present solution but not a limitation, the pressing assembly 5 includes a lens frame membrane 51 and a positioning mechanism 52 for keeping the lens frame membrane 51 within the contour of the lower receiving groove 7 .

[0032] In this embodiment, the stability and accuracy of the pressing assembly during the injection molding process are ensured by the positioning mechanism to prevent displacement, thereby further improving the precision and efficiency of the frame injection molding process. The frame diaphragm is made of a finely carved steel sheet to shape the contour of the frame, which is resistant to high temperature corrosion and can be repeatedly recycled.

[0033] Furthermore, as a preferred embodiment of the present invention but not a limitation, the positioning mechanism 52 includes a first positioning column 521 provided on the lower mold core 4 and located within the contour of the lower receiving groove 7, and a first positioning hole 522 provided on the frame diaphragm 51 and for the first positioning column 521 to pass through.

[0034] In this embodiment, the frame diaphragm can be accurately and firmly positioned during the injection molding process, and maintain accurate positioning with the lower mold core, ensuring uniformity and accuracy of the injection material filling the cavity. By passing the first positioning column through the first positioning hole on the frame mold piece to position the frame mold piece, the mold offset or uneven frame molding caused by inaccurate positioning can be effectively avoided, the production efficiency and product quality of the frame injection molding are improved, the scrap rate and reprocessing cost are reduced, and the injection molding operation process is simplified, the manufacturing cost is reduced and the production efficiency is improved.

[0035] Furthermore, as a preferred embodiment of the present invention but not a limitation, the positioning mechanism 52 also includes a second positioning column 523 provided on the upper mold core 3 and located within the contour of the upper receiving groove 6, and a second positioning hole 524 provided on the frame diaphragm 51 and for the second positioning column 523 to pass through.

[0036] In this embodiment, the frame diaphragm can be firmly positioned between the upper mold core and the lower mold core, maintaining an accurate position, ensuring the uniformity and accuracy of the injection material filling the cavity. Through the double positioning design, the accurate positioning and stability of the frame diaphragm can be better ensured, avoiding mold offset or uneven frame molding caused by inaccurate positioning, improving the injection molding production efficiency and product quality, reducing scrap rate and reprocessing costs, and at the same time simplifying the injection molding operation process, reducing manufacturing costs and improving production efficiency.

[0037] Furthermore, as a preferred implementation manner of this solution but not limiting, it includes three first positioning columns 521 distributed in a triangle.

[0038] In this embodiment, by distributing the first positioning posts in a triangular shape on the upper mold core and being located within the contour of the upper groove, the stable positioning of the frame diaphragm during the injection molding process is ensured. This design can better balance and disperse the positioning force, so that the frame diaphragm can be evenly stressed during the injection molding process, thereby avoiding the problem of offset or deformation caused by uneven positioning force, ensuring that the injection material fully fills the cavity, and improving the precision of frame injection molding and product quality. At the same time, it also enhances the connection stability between the frame diaphragm and the upper mold core, effectively reduces the displacement or jitter caused by the injection molding pressure, and further improves the efficiency and yield rate of the injection molding process.

[0039] Furthermore, as a preferred implementation of the present solution but not a limitation, the frame cavity 8 includes a rib cavity 81 and two lens cavities 82 , and the rib cavity 81 is disposed between the two lens cavities 82 .

[0040] Further, as a preferred implementation manner of the present solution but not limiting, the mirror frame membrane 51 is provided with a bevel 511 , and the bevel 511 is arranged around the outer side of the mirror frame membrane 51 .

[0041] In this embodiment, the beveled edge design makes the edge of the frame film smoother and more beveled, so that the frame mold can be more easily separated from the molded frame, reducing the risk of frame damage.

[0042] Furthermore, as a preferred implementation of the present solution but not a limitation, a chamfer 9 is provided on the first positioning column 521 on a side close to the mirror frame diaphragm 51 .

[0043] In this embodiment, the chamfer setting allows the first positioning hole on the frame membrane to be better aligned with the hole position and pass smoothly when the first positioning column passes through it, while also preventing the top of the first positioning hole from colliding with the frame module and causing scratches, thereby affecting the quality of the finished product.

[0044] The working principle of this embodiment is as follows:

[0045] The present application discloses a mold for facilitating demoulding of eyeglass frames. The frame is formed by molding through the cooperation of an upper receiving groove on an upper mold core, a lower mold groove on a lower mold core, and a pressing sheet assembly. The pressing sheet assembly is detachably arranged between the upper mold core and the lower mold core, so that the pressing sheet assembly can be detached from the frame together with the eyeglass frame during demoulding, thereby reducing the contact area between the eyeglass frame and the lower mold core during demoulding, thereby preventing the frame from being damaged or deformed. The demoulding process of the eyeglass frame can then be completed by picking the pressing sheet assembly out of the frame that has been detached from the lower mold core. The pressing sheet assembly can be reused, thereby reducing costs and avoiding waste of materials.

[0046] The above are implementation methods provided in combination with specific contents, and it is not intended that the specific implementation of this application is limited to these descriptions. Any method structure similar to the present application, or a number of technical deductions or replacements based on the concept of the present application, should be considered as the protection scope of this application.

Claims

1. A mold for facilitating demoulding of a frame, characterized in that: The invention comprises an upper mold (1), a lower mold (2), an upper mold core (3), a lower mold core (4) and a tablet pressing assembly (5) for molding a mirror frame, wherein the upper mold core (3) is fixedly arranged on the upper mold (1), the lower mold core (4) is fixedly arranged on the lower mold (2), the tablet pressing assembly (5) is detachably arranged between the upper mold core (3) and the lower mold core (4), an upper receiving groove (6) is formed on the upper mold core (3), and a lower receiving groove (7) is formed on the lower mold core (4), the upper receiving groove (6) and the lower receiving groove (7) are arranged corresponding to each other, the lower side of the upper mold core (3) contacts the upper surface of the tablet pressing assembly (5), and the upper side of the lower mold core (4) contacts the lower surface of the tablet pressing assembly (5); When the upper surface and the lower surface of the pressing assembly (5) respectively contact the lower side of the upper mold core (3) and the upper side of the lower mold core (4), the upper receiving groove (6) cooperates with the lower receiving groove (7) to form a frame cavity (8) for forming a frame; The pressing assembly (5) comprises a mirror frame membrane (51) and a positioning mechanism (52) for retaining the mirror frame membrane (51) within the contour of the lower receiving groove (7); The positioning mechanism (52) comprises a first positioning column (521) provided on the lower mold core (4) and located within the contour of the lower receiving groove (7), and a first positioning hole (522) provided on the mirror frame membrane (51) and for the first positioning column (521) to pass through.

2. A mold for facilitating demoulding of a mirror frame according to claim 1, characterized in that: The positioning mechanism (52) further comprises a second positioning column (523) provided on the upper mold core (3) and located within the contour of the upper receiving groove (6), and a second positioning hole (524) provided on the mirror frame membrane (51) and for the second positioning column (523) to pass through.

3. A mold for facilitating demoulding of a mirror frame according to claim 1, characterized in that: It comprises three first positioning columns (521) distributed in a triangular shape.

4. A mold for facilitating demoulding of a mirror frame according to claim 1, characterized in that: The mirror frame cavity (8) comprises a mirror rib cavity (81) and two lens cavities (82), wherein the mirror rib cavity (81) is arranged between the two lens cavities (82).

5. The mold for facilitating demoulding of a mirror frame according to claim 1, characterized in that: The mirror frame membrane (51) is provided with a bevel (511), and the bevel (511) is arranged around the outer side of the mirror frame membrane (51).

6. A mold for facilitating demoulding of a mirror frame according to claim 2, characterized in that: A chamfer (9) is provided on the first positioning column (521) on a side close to the mirror frame membrane (51).

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