CN206048689U - Mould structure - Google Patents

Abstract

The utility model relates to a mould structure, which comprises a first mould group and a second mould group combined with the first mould group, wherein the first mould group comprises a first template, at least one sleeve and at least one first mould core, and the first template is provided with at least one first mould core hole; each sleeve is arranged in the corresponding first die core hole and is in interference fit with the vertical side wall of the corresponding first die core hole, the first end surface of each sleeve is flush with the die assembly surface of the corresponding first template, and the height of each sleeve is smaller than the depth of the corresponding first die core hole; each first mold core is arranged in the corresponding first mold core hole and the corresponding sleeve, the first end part of the first mold core is positioned in the corresponding positioning hole of the sleeve, and the second end part of the first mold core is positioned in the corresponding first mold core hole and is tightly matched with the vertical side wall of the corresponding first mold core hole. The mold structure of the application only needs to replace the sleeve capable of accommodating the adjusted mold core when the size of the mold core is adjusted through the arrangement of the sleeve, and does not need to modify the size of the mold core hole of the template or replace a new template.

Description

a mold structure

technical field

The utility model relates to the technical field of molding and processing of optical lenses, in particular to a mold structure for molding optical lenses.

Background technique

The male mold core of the male mold and the female mold core of the female mold in the current mold structure are directly assembled in the male mold core hole of the male mold plate and the female mold core hole of the female mold plate, and the sizes of the male mold core hole and the female mold core hole are fixed. , if the user wants to change the molding size of the lens, he must modify the size of the mold core hole of the template or replace a new template, which causes inconvenience in use. In addition, if the user wants to adjust the thickness of the forming core of the lens, he must adjust the position of the male mold core or the female mold core. At this time, there will be a gap between the surfaces of the male mold core and the female mold core around the lens forming position. The resulting lens is prone to burrs, resulting in poor quality of the lens, and the above problems must be solved by redesigning the male mold core and the female mold core.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of the utility model is to provide a mold structure.

In order to solve the above technical problems, the application discloses a mold structure, including a first mold set and a second mold set combined with the first mold, wherein the first mold set includes a first template, At least one sleeve and at least one first mold core, the first template has at least one first mold core hole; each sleeve is arranged in the corresponding first mold core hole, and is connected with the corresponding first mold core The vertical side wall of the hole is interference fit, the first end surface of the sleeve is aligned with the mold matching surface of the first template, and its height is smaller than the depth of the corresponding first mold core hole; each first mold The core is arranged in the corresponding first mold core hole and the sleeve, its first end is located in the corresponding positioning hole of the sleeve, and its second end is located in the corresponding first mold core hole, And closely matched with the vertical side wall of the corresponding first core hole. 15. According to an embodiment of the present application, the above-mentioned second mold set includes a second template and at least one second mold core, the mold-joining surface of the second template corresponds to the mold-joining surface of the first template, and the The second template has at least one second die core hole, each second die core hole corresponds to each first die core hole, and each second die core is arranged in the corresponding second die core hole.

According to an embodiment of the present application, the above-mentioned second mold set includes a second template, at least one sleeve and at least one second mold core, and the clamping surface of the second template corresponds to the clamping surface of the first template The second template has at least one second die core hole, each second die core hole corresponds to each of the first die core holes, and each sleeve of the second die set is arranged on the corresponding second die core hole Die core hole, and interference fit with the vertical side wall of the corresponding second mold core hole, its first end surface is aligned with the mold matching surface of the second template, and its height is smaller than the corresponding second mold core The depth of the hole, each second mold core is set in the corresponding second mold core hole and sleeve, its first end is located in the corresponding positioning hole of the sleeve, and its second end is located in the corresponding The second mold core hole is tightly matched with the vertical side wall of the corresponding second mold core hole.

According to an embodiment of the present application, the height of the first end of each of the first mold cores is greater than the height of the corresponding sleeve, and the first end of each first mold core is connected to the There is a gap between the end surface of the second end portion and the corresponding second end surface of the sleeve.

According to an embodiment of the present application, each of the first mold core holes is respectively provided with a first adjusting pad, and each of the first adjusting pads is connected to the second end of the corresponding first mold core.

According to an embodiment of the present application, each of the above-mentioned second mold core holes is respectively provided with a second adjusting pad, and each of the second adjusting pads is connected to the corresponding second mold core.

According to an embodiment of the present application, the height of the first end of each of the first mold cores is greater than the height of the corresponding sleeve, and the first end of each first mold core is connected to the There is a gap between the end face of the second end portion and the second end face of the corresponding sleeve; the height of the first end portion of each second mold core is greater than the height of the corresponding sleeve, which is different from that of each of the second mold cores. There is a gap between the end surface of the second end connected to the first end of a second mold core and the corresponding second end surface of the sleeve.

According to an embodiment of the present application, each of the first mold core holes is respectively provided with a first adjusting pad, and each of the first adjusting pads is connected to the second end of the corresponding first mold core.

According to an embodiment of the present application, each of the above-mentioned second mold core holes is respectively provided with a second adjusting pad, and each of the second adjusting pads is connected to the second end of the corresponding second mold core.

According to an embodiment of the present application, the height of each sleeve of the first mold set is less than or equal to one-third of the depth of the corresponding first mold core hole.

According to an embodiment of the present application, the inner diameter of the positioning hole of each sleeve of the first mold set is larger than the outer diameter of the corresponding first end portion of the first mold core.

According to an embodiment of the present application, the diameter of the first opening of the positioning hole located on the first end surface of the sleeve is smaller than the diameter of the second opening of the positioning hole located on the second end surface of the sleeve .

According to an embodiment of the present application, the height of each sleeve of the second mold set is less than or equal to one-third of the depth of the corresponding second mold core hole.

According to an embodiment of the present application, the inner diameter of the positioning hole of each sleeve of the second mold set is larger than the outer diameter of the corresponding first end portion of the second mold core.

Compared with the prior art, the present application can obtain the following technical effects:

The mold structure of the present application is set by the sleeve. When adjusting the size of the mold core, only the sleeve that can accommodate the adjusted mold core needs to be replaced, and there is no need to modify the size of the mold core hole of the template or replace a new template; When adjusting the thickness of the lens core, there is no need to redesign the gate and runner of the mold structure, and there is no need to replace the mold core.

Description of drawings

FIG. 1 is a cross-sectional view of the mold structure of the first embodiment of the present application.

FIG. 2 is an enlarged view of area A in FIG. 1 .

FIG. 3 is a partial schematic diagram of the first mold set of the first embodiment of the present application.

FIG. 4 is a cross-sectional view of the mold structure of the second embodiment of the present application.

FIG. 5 is a cross-sectional view of the mold structure of the third embodiment of the present application.

FIG. 6 is a partial schematic view of the mold structure of the fourth embodiment of the present application.

FIG. 7 is a partial schematic view of the mold structure of the fifth embodiment of the present application.

FIG. 8 is a view of the use state of the mold structure of the fifth embodiment of the present application.

FIG. 9 is another usage state view of the mold structure of the fifth embodiment of the present application.

FIG. 10 is a partial schematic view of the mold structure of the sixth embodiment of the present application.

FIG. 11 is a partial schematic view of the first mold set of the seventh embodiment of the present application.

FIG. 12 is a cross-sectional view of the mold structure of the eighth embodiment of the present application.

detailed description

A number of implementations of the present application will be disclosed in the following figures. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the application. That is to say, in some embodiments of the present application, these practical details are unnecessary. In addition, for the sake of simplifying the drawings, some well-known and commonly used structures and components will be shown in a simple schematic manner in the drawings.

The terms "first", "second", etc. used herein do not specifically refer to a sequence or order, nor are they used to limit the present application, but are only used to distinguish components or operations described with the same technical terms. .

Please refer to Fig. 1, Fig. 2 and Fig. 3, which are a sectional view of the mold structure 1 of the first embodiment of the present application, an enlarged view of the A region of Fig. 1 and a partial schematic diagram of the first mold group 10; as shown in the figure, The present embodiment provides a single-cavity mold structure 1, the mold structure 1 includes a first mold set 10 and a second mold set 11 matched with the first mold set 10, the first mold set 10 includes a first template 101, a cover The cylinder 102 and the first mold core 103, the first template 101 has a mold clamping surface 1011 and a first surface 1012 opposite to the mold clamping surface 1011, and has a first mold core hole 1013 vertically penetrating through the mold clamping surface 1011 and the first surface 1012 . The sleeve 102 is provided with a first core hole 1013 , the outer wall of which is in interference fit with the vertical side wall of the first core hole 1013 , and the first end surface 1021 of which is flush with the mold-matching surface 1011 . The sleeve 102 has a positioning hole 1022. The height h of the sleeve 102 is less than the depth d of the first core hole 1013, especially the height h of the sleeve 102 is less than half of the depth d of the first core hole 1013. In this example, the height h of the sleeve 102 is equal to or less than one-third of the depth d of the first core hole 1013 .

The first mold core 103 is arranged in the positioning hole 1022 of the first mold core hole 1013 and the sleeve 102, which has a first end 1031 and a second end 1032 connected to the first end 1031, the first end 1031 and the second end 1032 connected to the first end 1031. The central axes of the second end portion 1032 are on the same line. The outer diameter of the first end 1031 of the first mold core 103 is smaller than the outer diameter of its second end 1032, the first end 1031 of the first mold core 103 is arranged in the positioning hole 1022 of the sleeve 102, and its second end The portion 1032 is disposed in the first core hole 1013 . The outer side wall of the second end 1032 of the first mold core 103 is directly matched with the vertical side wall of the first mold core hole 1013, the first mold core 103, the first mold core hole 1013 and the positioning hole 1022 of the sleeve 102 The central axes are on the same line. The first mold set 10 in this embodiment is a fixed-side mold set, the first surface 1012 of the first template 101 is provided with a fixed-side fixing plate 104 , and the first mold core 103 is fixed on the fixed-side fixing plate 104 . Wherein the end surface of the first mold core 103 close to the clamping surface 1011 of the first template 101 has a molding cavity 1033, and the first end surface 1021 of the sleeve 102 has a gate 1024, and the gate 1024 and the molding cavity 1033 are located at the first The runners 1014 of the clamping surface 1011 of the template 101 communicate with each other.

The second mold set 11 of this embodiment includes a second template 111 and a second mold core 112, the second template 111 has a second surface 1111 and a mold surface 1112 opposite to the second surface 1111, and has a second mold core hole 1113 , the second mold core 112 is set in the second mold core hole 1113, and its outer wall closely matches the vertical side wall of the second mold core hole 1113, and the central axes of the second mold core 112 and the second mold core hole 1113 are on the same line superior. Wherein the end surface 1121 of the second mold core 112 located on the clamping surface 1112 has a forming cavity 1122 and a gate 1123 , and the gate 1123 communicates with the forming cavity 1122 and the runner 1114 located on the clamping surface 1112 of the second template 111 .

The second mold set 11 in this embodiment is a movable side mold set, the second surface 1111 of the second template 111 is provided with a seat 113 , and the second mold core 112 is fixed on the seat 113 . One side of the seat 113 has a receiving groove 1131 , and the movable side fixing plate 114 is disposed on one side of the seat 113 . The movable side fixed plate 114 is provided with an ejection mechanism 115 , and the ejection mechanism 115 is located in the accommodation groove 1131 of the seat 113 , and the accommodation groove 1131 of the seat 113 is a space for the ejection mechanism 115 to move vertically. The ejection mechanism 115 includes at least one ejection pin 1151 , one end of the at least one ejection pin 1151 passes through the socket 113 and the second template 111 , and is located at the flow channel 1114 of the mold-mating surface 1112 of the second template 111 .

When the mold structure 1 of the present embodiment is in use, the first mold set 10 of the fixed side mold set is arranged above the second mold set 11 of the movable side mold set, and the clamping surface 1011 of the first mold set 10 Corresponding to the clamping surface 1112 of the second mold set 11 , the second core hole 1113 corresponds to the first core hole 1013 , and the central axes of the second core hole 1113 and the first core hole 1013 are on the same line. The first mold core 103 corresponds to the second mold core 112, and the central axes of the first mold core 103 and the second mold core 112 are located on the same line. When the first mold set 10 and the second mold set 11 were clamped, the clamping surface 1011 of the first mold set 10 was in contact with the clamping surface 1112 of the second mold set 11, and the molding cavity 1033 of the first mold core 103 The lens molding cavity 12 is formed with the molding cavity 1122 of the second mold core 112, the first end surface 1021 of the sleeve 102 of the first mold set 10 and the surrounding area of the molding cavity 1122 of the second mold core 112 of the second mold set 11 The end faces 1121 are in close contact, and the gate 1024 of the first mold set 10 and the gate 1123 of the second mold set 11 communicate with the lens forming cavity 12 . Then pass plastic to the first mold group 10, the plastic flows to the gate 1024 of the first mold group 10 and the second mold group 11 through the runner 1014 of the first mold group 10 and the runner 1114 of the second mold group 11. The gate 1123 flows into the lens forming cavity 12 again, so that the plastic forms a lens in the lens forming cavity 12 .

The outer wall of the sleeve 102 in this embodiment is interference-fitted with the vertical side wall of the first core hole 1013, that is, the sleeve 102 does not need to be fixed to the first core hole 1013 by any screws or fixing components, making it easy to assemble remove. The size of the molding cavity 1033 of the first mold core 103 depends on the size of the lens to be molded. When the size of the lens to be molded needs to be changed, the size of the molding cavity 1033 changes accordingly. The first end of the first mold core 103 The outer diameter of the part 1031 must also be changed, and the inner diameter of the positioning hole 1022 of the sleeve 102 must also be changed, but the sleeve 102 of this embodiment is replaced with a sleeve 102 that meets the requirements according to the actual molding requirements, that is, the positioning hole of the sleeve 102 1022 accommodates the first mold core 103 whose size has been changed.

The sleeve 102 of this embodiment is only an interference fit in the first die core hole 1013. During the removal process, it is not necessary to use other special removal tools to remove the sleeve 102 originally installed in the first die core hole 1013, and it is not necessary to reinstall the sleeve 102. Modify the inner diameter of the first core hole 1013 of the first template 101 or replace the first template 101 with a new one, as long as the sleeve 102 matching the size of the first core 103 is replaced.

The inner diameter of the positioning hole 1022 of the sleeve 102 of the present embodiment is greater than the outer diameter of the first end 1031 of the first mold core 103, which also means that the positioning hole 1022 of the sleeve 102 and the first end 1031 of the first mold core 103 There is a gap between them, and this gap is used for exhausting, so that the gas in the lens forming cavity 12 can be discharged from the gap between the sleeve 102 and the first mold core 103, so as to avoid forming problems of the lenses formed by the lens forming cavity 12. This application The mold structure 1 has a good exhaust effect, which improves the production quality and yield of the lens.

In addition, the height H of the first end portion 1031 of the first mold core 103 in this embodiment is greater than the height h of the sleeve 102, so that the end surface of the second end portion 1032 connected to the first end portion 1031 of the first mold core 103 There is a gap between 1034 and the second end surface 1023 of the sleeve 102, in other words, the second end 1032 of the first mold core 103 does not contact the sleeve 102, so as to avoid repeated interference between the first mold core 103 and the sleeve 102 question.

As mentioned above, the first mold core 103 and the second mold core 112 in this embodiment have good coaxiality, which is mainly due to the first mold core 103, the first mold core hole 1013 and the positioning hole 1022 of the sleeve 102. The central axis is on the same line, the central axis of the second mold core 112 and the second mold core hole 1113 are on the same line, but the central axes of the first mold core hole 1013 and the second mold core hole 1113 are on the same line, so that The central axes of the first mold core 103 and the second mold core 112 are on the same line, so that there is good coaxiality between the first mold core 103 and the second mold core 112, so that the lenses formed by the lens forming cavity 12 will not A problem of eccentricity arises.

In this embodiment, the central axes of the first core 103, the first core hole 1013, and the positioning hole 1022 of the sleeve 102 are located on the same line. During the assembly process, the outer diameter and inner diameter of the sleeve 102 are firstly adjusted. Process the sleeve 102, and then assemble the sleeve 102 to the first core hole 1013 through interference fit, and form a positioning hole 1022 that meets the requirements in the center of the sleeve 102. The center axis of the positioning hole 1022 and the first core hole 1013 on the same line. Furthermore, the outer side wall of the second end 1032 of the first mold core 103 is closely matched with the vertical side wall of the first mold core hole 1013, so that the central axes of the first mold core 103 and the first mold core hole 1013 are on the same line Above, the central axes of the first mold core 103, the first mold core hole 1013 and the positioning hole 1022 of the sleeve 102 are finally on the same line, which also means that the first mold core 103, the sleeve 102 and the first mold core hole 1013 Has good coaxiality.

In addition, because the side wall of the first die core hole 1013 in this embodiment is a vertical flat side wall, that is, the diameter of any part of the first die core hole 1013 is the same, which also means that the first die core hole 1013 has not undergone electrical discharge machining or Milling without accumulating tolerances due to additional machining. However, the sleeve 102 and the first mold core 103 are tightly matched with the first mold core hole 1013, so that the cumulative tolerance generated when the sleeve 102 and the first mold core 103 are assembled in the first mold core hole 1013 is effectively avoided, and the first mold can be improved. Assembly accuracy of group 10.

The central axis of the second mold core 112 and the central axis of the second mold core hole 1113 in this embodiment are on the same line, which is the same as the first mold core hole 1013, mainly because the vertical side wall of the second mold core hole 1113 is not After electrical discharge machining or milling machine machining, the diameter of any part of the second core hole 1113 is the same, and no cumulative tolerance will be generated due to additional machining. When the outer side wall of the second mold core 112 is closely matched with the vertical side wall of the second mold core hole 1113, the central axis of the second mold core 112 and the second mold core hole 1113 is on the same line, which also means that the second mold core 112 It has good coaxiality with the second core hole 1113.

Please refer to Fig. 4, which is a schematic diagram of the mold structure 1 of the second embodiment of the present application; as shown in the figure, the difference between this embodiment and the above-mentioned embodiment is that the first mold group 10 of this embodiment is a movable side mold group, the second mold group 11 is a fixed side mold group. The detailed structures of the first mold set 10 and the second mold set 11 have been described in the above embodiments, and will not be repeated here. Because the first mold set 10 of this embodiment is a movable mold set, the seat 113 is arranged on one side of the first surface 1012 of the first template 101, and one side thereof has a receiving groove 1131, and the movable side fixing plate 114 is arranged On one side of the seat 113. The movable side fixing plate 114 is provided with an ejection mechanism 115 , and the ejection mechanism 115 is located between the seat 113 and the movable side fixing plate 114 . The ejection mechanism 115 includes at least one ejection pin 1151 , the at least one ejection pin 1151 passes through the socket 113 and the first template 101 , and is located on the flow channel 1014 of the mold-matching surface 1011 of the first template 101 . In addition, the second surface 1111 of the second template 111 is provided with a fixed side fixing plate 104 , and the second mold core 112 is fixed on the fixed side fixing plate 104 .

Please refer to Fig. 5, which is a cross-sectional view of the mold structure 1 of the third embodiment of the present application; The lens of the cavity is ejected by the ejector pin. The ejection mechanism 115 of this embodiment replaces the ejection mechanism of the second embodiment with a mold core ejection mechanism, which ejects the first mold core 103, and the first mold core 103 ejects the lens formed in the lens forming cavity 12 . The ejector mechanism 115 of this embodiment includes a push tube 1152 and a locking member 1153. One end of the push tube 1152 passes through the seat 113 and abuts against the second end 1032 of the first mold core 103, and the locking member 1153 passes through the The push tube 1152 is locked to the first mold core 103 so that the push tube 1152 is locked to the first mold core 103 . When the push tube 1152 of the ejector mechanism 115 moves toward the first mold core 103, it drives the first mold core 103 to eject the lens formed in the lens forming cavity 12. At this time, the first mold core 103 moves to the first mold core hole In 1013, there is a gap between the end face 1034 of the second end portion 1032 connected to the first end portion 1031 of the first mold core 103 and the second end face 1023 of the sleeve 102 (as shown in FIG. 3 ). The vertical distance of the moving space of the first mold core 103 is larger than the distance that the ejection mechanism 115 ejects the first mold core 103, which can prevent the second end 1032 of the first mold core 103 from contacting the sleeve 102 and avoid repeated interference. question. In addition, the height of the sleeve 102 is smaller than the depth of the first mold core hole 1013, reducing the contact area between the first mold core 103 and the sleeve 102, reducing the chance of friction between the first mold core 103 and the sleeve 102 due to the movement of the first mold core, and reducing the friction of the sleeve 102. Wear of the barrel 102 improves the service life of the sleeve 102.

Please refer to Fig. 6, which is a partial schematic view of the mold structure of the fourth embodiment of the present application; Two die sets 11. The second mold set 11 of the present embodiment comprises a second template 111, a sleeve 116 and a second mold core 112, the sleeve 116 is arranged in the second mold core hole 1113, and its outer wall is in line with the vertical side of the second mold core hole 1113 The walls are interference fit, and the first end surface 1161 of the wall is flush with the mating surface 1112 of the second template 111 . The height of the sleeve 116 is less than the depth of the second core hole 1113, preferably less than 1/2 of the depth of the second core hole 1113, the height of the sleeve 116 of this embodiment is the second core hole 1113 1/3 of the depth of the sleeve 116, of course, the height of the sleeve 116 can also be less than 1/3 of the depth of the second core hole 1113. The second mold core 112 is arranged in the second mold core hole 1113 and the positioning hole 1162 of the sleeve 116, and has a first end 1124 and a second end 1125 connected to the first end 1124, and the first end 1124 is positioned at the positioning hole 1162. In the hole 1162 , the inner diameter of the positioning hole 1162 of the sleeve 116 is larger than the outer diameter of the corresponding first end portion 1124 of the second core 112 . The second end portion 1125 is located in the second core hole 1113 , and its outer wall closely matches the vertical side wall of the second core hole 1113 . There is a gap between the end surface 1126 of the second end portion 1125 of the second mold core 112 and the second end surface 1163 of the sleeve 116 . Wherein the ejection mechanism 115 of the mold structure of this embodiment is ejection pin ejection, and the second mold core 112 is fixed on the seat 113; if the ejection mechanism 115 of this embodiment is changed to a mold core ejection mechanism, the ejection The mechanism 115 is connected with the second mold core 112 to eject the second mold core 112 . The functions of the first mold set 10 and the second mold set 11 in this embodiment are the same as those of the first mold set 10 in the first embodiment, and will not be repeated here.

It can be seen from the above that the mold set with sleeve can be applied to the fixed side mold set or the movable side mold set, or both the fixed side mold set and the movable side mold set, and can also be applied to the mold with ejector pin ejection Structure or mold core ejected mold structure.

Please refer to Fig. 7, which is a partial schematic diagram of the mold structure of the fifth embodiment of the present application; as shown in the figure, the mold structure of this embodiment is different from the mold structure of the first embodiment in that the first mold group of this embodiment 10 further includes a first adjusting pad 105 , and the second mold set 11 further includes a second adjusting pad 117 . The first adjustment pad 105 is connected to the second end 1032 of the first mold core 103, and is located between the first mold core 103 and the fixed side fixing plate 104, the first mold core 103 and the first adjustment pad 105 are fixed on the fixed side Fixed plate 104 . The second adjusting pad 117 is connected to the second mold core 112 and is located between the second mold core 112 and the seat 113 . The second mold core 112 and the second adjusting pad 117 are fixed on the seat 113 . The mold structure of this embodiment determines the distance between the first mold core 103 and the second mold core 112 according to the thickness of the first adjusting pad 105 and the second adjusting pad 117, and then determines the lens to be molded in the lens forming cavity 12 core thickness.

When the mold structure of this embodiment wants to adjust the core thickness of the lens, adjust the thickness of the first adjusting pad 105 to adjust the distance between the first mold core 103 and the second mold core 112, and then adjust the lens molding cavity 12 to be molded. The core thickness of the inner lens. Please refer to Fig. 8 and 9 together, it is the use status diagram of the mold structure of the fifth embodiment of the present application; The direction of the second mold core 112 is moved to widen the distance between the first mold core 103 and the second mold core 112, and to increase the core thickness of the lens to be molded in the lens forming cavity 12; When the thickness of 105 increases, the first mold core 103 moves towards the direction close to the second mold core 112, shortening the distance between the first mold core 103 and the second mold core 112, and allowing the lens to be molded in the lens forming cavity 12 Core thickness is reduced. The gap between the end surface 1034 of the second end portion 1032 of the first mold core 103 and the second end surface 1023 of the sleeve 102 is a space reserved for the movement of the first mold core 103 . In the above description, the core thickness of the lens to be molded in the lens forming cavity 12 is adjusted by adjusting the thickness of the first adjusting spacer 105 .

When the thickness of the first adjusting pad 105 decreases or increases, the first mold core 103 is moved in the first mold core hole 1013, but the sleeve 102 will not move, so that the first mold set 10 and the second mold set 11 When closing the mold, the first end surface 1021 of the sleeve 102 can still be in close contact with the end surface 1121 of the second mold core 112, so that the lens formed by the lens forming cavity 12 will not produce burrs, and the lens can reach the required core thickness In addition, the gate 1024 of the first mold set 10 is formed on the first end surface 1021 of the sleeve 102, so that the position of the gate 1024 will not move with the first mold core 103, so that the first mold core 103 does not need to be replaced. The thickness of the first spacer 105 can be reduced by grinding, or the first spacer 105 can be replaced with a spacer with a different thickness. The mold structure adjusted by the above method has high precision. The first adjusting pad 105 and the second adjusting pad 117 of this embodiment can also be applied to the mold structure of the second embodiment. The first adjusting pad 105 is arranged between the first mold core and the seat, and the second adjusting pad The block 117 is arranged between the second mold core and the fixed side fixed plate, and its adjustment method is the same as above, and will not be repeated here. The above-mentioned second adjustment block 117 can be omitted, and the above-mentioned effect can also be achieved.

Please refer to Fig. 10, which is a partial schematic view of the mold structure of the sixth embodiment of the present application; as shown in the figure, the difference between the mold structure of this embodiment and the mold structure of the fourth embodiment is that the first mold group of this embodiment 10 further includes a first adjustment cushion block 105 arranged between the first mold core 103 and the fixed side fixing plate 104, the first adjustment cushion block 105 is connected to the second end 1032 of the first mold core 103, the second mold set 11 It further includes a second adjustment pad 117 disposed between the second mold core 112 and the seat 113 , the second adjustment pad 117 is connected to the second end 1125 of the second mold core 112 . The mold structure of this embodiment determines the distance between the first mold core 103 and the second mold core 112 according to the thickness of the first adjusting pad 105 and the second adjusting pad 117, and then determines the lens to be molded in the lens forming cavity 12 core thickness.

When the mold structure of this embodiment wants to adjust the core thickness of the lens, the thicknesses of the first adjusting pad 105 and the second adjusting pad 117 should be adjusted at the same time to adjust the distance between the first mold core 103 and the second mold core 112, and then adjust The core thickness of the lens to be formed in the lens forming cavity 12 . When the thickness of the first adjusting pad 105 and the second adjusting pad 117 is reduced, the first mold core 103 and the second mold core 112 are far away from each other, the distance between the first mold core 103 and the second mold core 112 is widened, and The core thickness of the lens to be molded in the lens forming cavity 12 is increased; on the contrary, when the thickness of the first adjusting pad 105 and the second adjusting pad 117 is increased, the first mold core 103 and the second mold core 112 are close to each other, The distance between the first mold core 103 and the second mold core 112 is shortened, and the core thickness of the lens to be molded in the lens forming cavity 12 is reduced. Wherein the gap between the end surface 1034 of the second end 1032 of the first mold core 103 and the second end surface 1023 of the sleeve 102 is the space reserved for the first mold core 103 to move, the second end of the second mold core 112 The gap between the end surface 1126 of the sleeve 1125 and the second end surface 1163 of the sleeve 116 is a space reserved for the movement of the second core 112 .

In the above description, the core thickness of the lens to be molded in the lens forming cavity 12 is adjusted by adjusting the thickness of the first adjusting spacer 105 and the second adjusting spacer 117 . When the thickness of the first adjusting pad 105 and the second adjusting pad 117 decreases or increases, the first mold core 103 and the second mold core 112 are moved in the first mold core hole 1013 and the second mold core hole 1113 respectively , but the sleeve 102 of the first mold set 10 and the sleeve 116 of the second mold set 11 will not move, so that when the first mold set 10 and the second mold set 11 are molded together, the sleeve of the first mold set 10 The first end surface 1021 of 102 can still be in close contact with the first end surface 1161 of the sleeve 116 of the second mold set 11, so that the lens formed by the lens forming cavity 12 will not produce burrs, and the lens can reach the required core thickness. In addition, the gate 1024 of the first mold set 10 is formed on the first end surface 1021 of its sleeve 102, and the gate 1123 of the second mold set 11 is formed on the first end surface 1161 of its sleeve 116, so that the first mold set 10 The positions of the gate 1024 and the gate 1123 of the second mold set 11 will not move with the first mold core 103 and the second mold core 112, so there is no need to redesign the gate 1024 of the first mold set 10 and the second mold set 11 The gate 1123 does not need to replace the first mold core 103 and the second mold core 112. Wherein the thickness of the first spacer 105 and the second spacer 117 can reduce the thickness of the first spacer 105 and the second spacer 117 by grinding, or the first spacer 105 and the second spacer 117 is replaced by adjusting pads of different thicknesses, and the mold structure adjusted by the above method has high precision.

Please refer to FIG. 11 , which is a schematic diagram of the first mold set 10 of the seventh embodiment of the present application; as shown in the figure, the mold structure of this embodiment is different from that of the first embodiment in that the first The mold group 10 includes a first template 101, a sleeve 102, a first mold core 103 and a support sleeve 106. The sleeve 102 is arranged on the first mold core hole 1013 of the first template 101, and its outer wall is in contact with the first mold core hole. The vertical side wall of 1013 is interference fit, the first end surface 1021 of the sleeve 102 is aligned with the mold-matching surface 1011 of the first template 101, and the support sleeve 106 is arranged in the first mold core hole 1013, which is in contact with the sleeve 102 The second end surface 1023 , the outer side wall of the support sleeve 106 is in interference fit with the vertical side wall of the first core hole 1013 . The fixing hole 1061 of the support sleeve 106 communicates with the positioning hole 1022 of the sleeve 102, the first mold core 103 is arranged on the support sleeve 106 and the sleeve 102, and the first end 1031 of the first mold core 103 is located on the sleeve 102 The positioning hole 1022 has a gap between its outer wall and the side wall of the positioning hole 1022 . The second end portion 1032 of the first mold core 103 is located in the fixing hole 1061 of the support sleeve 106 , and its outer sidewall closely matches the vertical sidewall of the fixing hole 1061 . There is a distance between the end surface 1034 of the second end portion 1032 of the first mold core 103 and the second end surface 1023 of the sleeve 102 . The mold structure of the first embodiment is used for molding small-sized lenses, and the mold structure of this embodiment is used for molding large-sized lenses. As the size of the lens to be molded increases, the size of the first mold core 103 also increases. Therefore, it is necessary to use a large-sized sleeve 102 , and the heavier the weight of the sleeve 102 , it is necessary to add a support sleeve 106 to abut against the second end surface 1023 of the sleeve 102 to support the sleeve 102 .

The structure of the first mold set 10 of this embodiment can be applied to the first mold set of the mold structure of the second embodiment, and can also be applied to the first mold set and the second mold set of the mold structure of the fourth embodiment. This will not be repeated here.

The diameter of the first opening 1025 of the positioning hole 1022 on the first end surface 1021 of the sleeve 102 is smaller than the diameter of the second opening 1026 of the positioning hole 1022 on the second end surface 1023 of the sleeve 102, so that the first mold core 103 The first end portion 1031 of the sleeve 102 can easily enter the positioning hole 1022 from the second opening 1026 of the positioning hole 1022 on the second end surface 1023 of the sleeve 102 . The structure of the sleeve 102 can be applied to the sleeve of the mold structure of the above-mentioned embodiment. The mold structure in the above embodiments is taken as an example for injection molding. The mold structure with a sleeve of the present application can be used in a stamping mold, and will not be repeated here.

Please refer to Fig. 12, which is a sectional view of the mold structure 1 of the eighth embodiment of the present application; Cave mold structure 1, the first template 101 of the present embodiment has a plurality of first core holes 1013, each core hole 1013 is provided with a sleeve 102 and a first core 103, as shown in Figure 3, the first The second template 111 also has a plurality of second die core holes 1113 corresponding to the plurality of first die core holes 1013 , and each second die core hole 1113 is provided with a second die core 112 . Of course, the structure of the sleeve and the mold core can also be changed in each second mold core hole 1113, or the sleeve, support sleeve and mold core can be set in each of the first mold core hole 1013 or the second mold core hole 1113 The structure of which is shown in Figure 11, and will not be repeated here.

To sum up, the present application discloses a mold structure, which is mainly provided with a sleeve and a mold core in the core hole of the mold. The sleeve is installed in the core hole of the mold through interference fit, and does not need to be fixed by screws or other fixing components. , to achieve easy assembly, and it can be disassembled without special disassembly tools, so as to achieve easy disassembly; when the size of the lens to be formed changes, only the sleeve that can accommodate the mold core that meets the size of the lens needs to be replaced without modification The size of the core hole of the template or replace with a new template.

When the mold structure of the present application adjusts the space between the mold cores by adjusting the spacer, the mold core will move in the mold core hole, and the sleeve will not move. When the two mold groups of the mold structure are closed, the sleeve and The other mold core or sleeve can still be tightly sealed, so that the molded lens will not produce burrs, and at the same time, there is no need to redesign the gate and runner of the mold structure, and it is not necessary to replace a new mold core.

The positioning hole of the sleeve of the mold structure of the present application is used to accommodate the end of the mold core provided with the forming cavity, and there is a gap between the positioning hole and the mold core, so that the exhaust effect of the mold structure of the present application is good and can reduce The lenses molded by the mold structure of the present application have molding problems.

The above description is only the embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, various modifications and changes may occur in this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims (14)

1. a kind of mould structure, including the first set of molds and the second set of molds with the first set of molds matched moulds, its feature exist In first set of molds includes the first template, at least one sleeve and at least one first dies, and first template has At least one first die orifices；Each sleeve is arranged at corresponding first die orifice, and with corresponding first die orifice Vertical sidewall interference engagement, the first end face of the sleeve is trimmed with the land area of first template, and which is highly less than The depth of corresponding first die orifice；Each first die is arranged at corresponding first die orifice and sleeve, its First end is located in the location hole of the corresponding sleeve, and its second end is located in corresponding first die orifice, and With the vertical sidewall close-fitting of corresponding first die orifice.

2. mould structure according to claim 1, it is characterised in that second set of molds includes the second template and at least One the second die, the land area of land area correspondence first template of second template, second template have extremely Few second die orifice, each each first die orifice described in the second die orifice correspondence, each second die are arranged In corresponding second die orifice.

3. mould structure according to claim 1, it is characterised in that second set of molds includes the second template, at least One sleeve and at least one second dies, the land area of land area correspondence first template of second template；It is described Second template has at least one second die orifices, each each first die orifice described in the second die orifice correspondence, described Each sleeve of second set of molds is arranged at corresponding second die orifice, and the vertical side with corresponding second die orifice Wall interference engagement, its first end face are trimmed with the land area of second template, and which is highly less than corresponding second die The depth in hole, each second die are arranged at corresponding second die orifice and sleeve, and its first end is located at corresponding In the location hole of the sleeve, its second end be located at corresponding second die orifice in, and with corresponding second mould The vertical sidewall close-fitting in core hole.

4. mould structure according to claim 2, it is characterised in that the height of the first end of each first die Height of the degree more than the corresponding sleeve, the second end being connected with the first end of each first die There is between end face and the second end face of the corresponding sleeve gap.

5. mould structure according to claim 4, it is characterised in that is respectively equipped with described each first die orifice One adjustment cushion block, described each first adjustment cushion block connect the second end of corresponding first die.

6. mould structure according to claim 5, it is characterised in that is respectively equipped with described each second die orifice Two adjustment cushion blocks, described each second adjustment cushion block connect corresponding second die.

7. mould structure according to claim 3, it is characterised in that the height of the first end of each first die Height of the degree more than the corresponding sleeve, the second end being connected with the first end of each first die There is between end face and the second end face of the corresponding sleeve gap；The height of the first end of each second die is big In the height of the corresponding sleeve, the end face of the second end being connected with the first end of each second die There is between the second end face of the corresponding sleeve gap.

8. mould structure according to claim 7, it is characterised in that is respectively equipped with described each first die orifice One adjustment cushion block, described each first adjustment cushion block connect the second end of corresponding first die.

9. the mould structure according to claim 7 or 8, it is characterised in that is set in described each second die orifice respectively There is the second adjustment cushion block, described each second adjustment cushion block connects the second end of corresponding second die.

10. the mould structure according to claim 1-4, any one of 7, it is characterised in that first set of molds it is every The height of one sleeve less than or equal to the depth of corresponding first die orifice 1/3rd.

11. according to claim 1-4, the mould structure any one of 7, it is characterised in that first set of molds it is every External diameter of the internal diameter of the location hole of one sleeve more than the first end of corresponding first die.

12. according to claim 1-4, the mould structure any one of 7, it is characterised in that positioned at the first of the sleeve The diameter of the first opening of the location hole of end face is less than the second of the location hole of the second end face positioned at the sleeve The diameter of opening.

13. mould structures according to claim 3 or 7, it is characterised in that each sleeve of second set of molds Highly less than or equal to corresponding second die orifice depth 1/3rd.

14. mould structures according to claim 3 or 7, it is characterised in that each sleeve of second set of molds External diameter of the internal diameter of location hole more than the first end of corresponding second die.