Mold structure capable of solving problem of easy cracking of SAN (Storage Area Network)

Abstract

The utility model provides a mould structure for solving the problem of easy cracking of SAN (Storage Area Network), which comprises a panel, an upper movable mould, a lower fixed mould, an ejector plate and a bottom plate, an upper mould core is embedded at the bottom of the upper movable mould, a lower mould core is embedded on the lower fixed mould, the panel is provided with a first forming column and a second forming column, the lower mould is provided with a cylindrical insert, and the cylindrical insert is provided with a first forming groove. The lower mold core is provided with a second forming groove and an annular insert. Ejector rods connected with the ejector plate are arranged at the bottoms of the cylindrical insert and the annular insert. During mold closing, the first forming column is arranged in the first forming groove to form a first groove, the second forming column is arranged in the second forming groove to form a second groove, during mold opening, the panel firstly drives the first forming column and the second forming column to be separated from the cover body, then the upper movable mold moves upwards, and the ejector plate pushes the cylindrical insert and the annular insert to push a product upwards to be ejected out of the lower mold core. The first forming column and the second forming column are firstly separated from the product to prevent the peripheries of the first groove and the second groove from being broken, and the cylindrical insert and the annular insert are adopted to eject the cover body to prevent the cover body from being poked.

Description

Technical Field

[0001] The utility model relates to the field of molds, and in particular to a mold structure for solving the problem of easy cracking of SAN. Background Art

[0002] The mold is a tool used to make molded products. Different shapes of molds can be used to make products of different shapes. SAN material is a commonly used synthetic resin material with good transparency. It is widely used in injection molding transparent products. However, during the injection molding process, it is easy to produce excessive internal stress, resulting in product cracking. Figure 1-2 The cover body shown is injection-molded from SAN material, and is disc-shaped. A protrusion is arranged around a circle of the cover body, a first groove is arranged in the middle of the cover body, a second groove is arranged on one side of the first groove, and ribs are arranged in the first groove and the second groove. The cover body is easily broken around the first groove and the second groove when demolding, and the cover body is easily broken if only the ejector is used to eject during demolding. Therefore, how to realize the molding and demolding of the cover body is an urgent problem to be solved. Utility Model Content

[0003] The utility model provides a mold structure for solving the problem that SAN is easy to crack, aiming to solve the technical problems that a cover body formed by SAN material is easy to crack during mold opening and the cover body is easy to crack when only ejecting by an ejector pin is used.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a mold structure for solving the problem of easy cracking of SAN, comprising a panel, an upper movable mold, a lower fixed mold, an ejector plate, and a bottom plate from top to bottom, an upper mold core is embedded in the bottom of the upper movable mold, a lower mold core is embedded in the lower fixed mold, a first molding column and a second molding column are arranged on the panel, a cylindrical insert is slidably arranged in the middle of the lower mold core, the cylindrical insert has a first molding groove, the lower mold core is arranged with a second molding groove and an annular insert, the first molding column and the second molding column can slide through the upper movable mold and the upper mold core to the first molding groove and the second molding groove, an ejector rod is arranged at the bottom of the cylindrical insert and the annular insert, and the ejector rod extends downward and is fixed to the ejector plate.

[0005] Furthermore, the upper die core is further provided with a protrusion, and the lower die core is further provided with a third molding groove.

[0006] Furthermore, an annular groove is further provided on the annular insert.

[0007] Furthermore, the ejector plate includes two first ejector plates and two second ejector plates, and a secondary ejector machine is arranged between the first ejector plate and the second ejector plate.

[0008] Furthermore, a plurality of ejector pins are further arranged on the second ejector plate, and the ejector pins can slide upward through the lower fixed mold and the cylindrical insert, and the ejector rod is installed on the first ejector plate.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model solves the problem that a mold structure for SAN is easy to crack and comprises a panel, an upper movable mold, a lower fixed mold, an ejector plate and a bottom plate. An upper mold core is embedded in the bottom of the upper movable mold, a lower mold core is embedded in the lower fixed mold, a first forming column and a second forming column are arranged on the panel, a cylindrical insert is slidably arranged in the middle of the lower mold core, the cylindrical insert is provided with a first forming groove, the lower mold core is provided with a second forming groove and an annular insert, the first forming column and the second forming column can slidably pass through the upper movable mold and the upper mold core to the first forming groove and the second forming groove, and ejector rods are arranged at the bottom of the cylindrical insert and the annular insert, extending downward and being fixed on the ejector plate. When the mold is closed, the upper mold core and the lower mold core are closed to form a molded cavity. The first molding column is placed in the first molding groove to form the first groove, and the second molding column is placed in the second molding groove to form the second groove. When the mold is opened, the panel first drives the first molding column and the second molding column to move upward, and then the upper movable mold moves upward, and the ejector plate is controlled to push the cylindrical insert and the annular insert to push the product upward to be ejected from the lower mold core. The first molding column and the second molding column are used to first eject from the product to avoid cracking around the first groove and the second groove. The cylindrical insert and the annular insert are used to eject the product to prevent the cover from being punctured, thereby realizing the molding and demolding of the cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a schematic diagram of the cover structure.

[0013] Figure 2 It is a schematic diagram of the structure of the cover from another angle.

[0014] Figure 3 This is a schematic diagram of the molding die structure of the cover body of the utility model;

[0015] Figure 4 It is a schematic diagram of the panel structure of the molding die of the cover body of the utility model;

[0016] Figure 5 It is a schematic diagram of the upper mold core structure of the molding die of the cover body of the utility model;

[0017] Figure 6 It is a schematic diagram of the matching structure of the lower die core, cylindrical insert and annular insert of the forming die of the cover body of the utility model;

[0018] Figure 7 It is a schematic diagram of the lower mold core structure of the molding die of the cover body of the utility model;

[0019] Figure 8 The utility model is a schematic diagram of the matching structure of a cylindrical insert, an annular insert and an ejector plate of a forming die of a cover body.

[0020] Main component symbols

[0021] 10. panel; 101. first forming column; 102. second forming column;

[0022] 20. Upper movable mold;

[0023] 21. upper die core; 211. convex block;

[0024] 30. Set the mold;

[0025] 31, lower mold core; 311, cylindrical insert; 3111, first molding groove; 312, annular insert; 313, second molding groove; 314, third molding groove;

[0026] 40, ejector plate; 401, first ejector plate; 4011, ejector; 402, second ejector plate; 4021, ejector rod; 403, secondary ejector machine;

[0027] 50. Base;

[0028] 60. Cover body; 601. First groove; 602. Second groove; 603. Strip hole; 604. Protrusion. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] Example

[0033] like Figure 1-2 The cover body 60 shown is injection molded from SAN material and is disc-shaped. A protrusion 604 is arranged around the cover body 60. A first groove 601 is arranged in the middle of the cover body 60. A second groove 602 and a strip groove are arranged on one side of the first groove 601. Ribs are arranged in the first groove 601 and the second groove 602.

[0034] Reference Figure 3 As shown, the utility model discloses a mold structure for solving the problem of easy cracking of SAN, including a panel 10, an upper movable mold 20, a lower fixed mold 30, an ejector plate 40, and a bottom plate from top to bottom. An upper mold core 21 is embedded in the bottom of the upper movable mold 20, and a lower mold core 31 is embedded in the lower fixed mold 30. When the molds are closed, the upper mold core 21 and the lower mold core 31 are closed to form a cavity for forming a cover body 60, which is used to form the main body of the cover body 60.

[0035] Reference Figure 4-5As shown, the panel 10 is provided with a first molding column 101 and a second molding column 102, a cylindrical insert 311 is slidably provided in the middle of the lower mold core 31, the cylindrical insert 311 is provided with a first molding groove 3111, the lower mold core 31 is provided with a second molding groove 313 and an annular insert 312, the first molding column 101 and the second molding column 102 can slide through the upper movable mold 20 and the upper mold core 21 to the first molding groove 3111 and the second molding groove 313, specifically, when the mold is closed, the first molding column 101 and the second The molding column 102 is respectively placed in the first molding groove 3111 and the second molding groove 313, which are respectively used to mold the first groove 601 and the second groove 602 of the cover body 60. An annular groove is further arranged on the annular insert 312, which is used to mold a circle of protrusions 604 of the cover body 60; further, the upper mold core 21 is also provided with a protrusion 211, and the lower mold core 31 is further provided with a third molding groove 314. The protrusion 211 is placed in the third molding groove 314 for molding the strip hole 603 on the cover body 60.

[0036] Reference Figure 4-7 As shown, a push rod 4021 is provided at the bottom of the cylindrical insert 311 and the annular insert 312, and the push rod 4021 extends downward and is fixed to the ejector plate 40. Specifically, when the mold is opened, the panel 10 first moves upward to drive the first molding column 101 and the second molding column 102 to be pulled out from the first groove 601 and the second groove 602 of the cover body 60, because the upper mold core 21 and the lower mold core 31 are still in a closed state at this time, pressing the cover body 60 to prevent the cover body 60 from cracking around the first groove 601 and the second groove 602; then, the upper movable mold 20 and the upper mold core 21 move upward, so that the cover body 60 falls on the lower mold core 31; finally, the ejector plate 40 pushes the push rod 4021 upward to push the cover body 60 away from the lower mold core 31, and the cylindrical insert 311 and the annular insert 312 are used to replace the ejector 4011 to push the cover body 60 to prevent the cover body 60 from being pierced.

[0037] Reference Figure 8As shown, the ejector plate 40 includes two first ejector plates 401 and two second ejector plates 402, and a secondary ejector machine 403 is arranged between the first ejector plates 401 and the second ejector plates 402. The secondary ejector machine 403 realizes that the two first ejector plates 401 and the two second ejector plates 402 move upward together, and after moving 20mm, the two first ejector plates 401 are separated from the two second ejector plates 402; a plurality of ejector pins 4011 are arranged on the second ejector plate 402, and the ejector pins 4011 can slide upward through the lower fixed mold 30 and The cylindrical insert 311, at the beginning, the first ejector plate 401 and the second ejector plate 402 simultaneously push the cylindrical insert 311, the annular insert 312 and the ejector pin 4011 upward to push the cover body 60, when the cover body 60 is separated from the lower mold core 31 and then under the action of the secondary ejector 403, the two first ejector plates 401 stop pushing the cylindrical insert 311 and the annular insert 312 upward, and the two second ejector plates 402 continue to push the ejector pin 4011 upward to push the cover body 60 off from the cylindrical insert 311, thereby realizing the demolding of the cover body 60.

[0038] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mold structure for solving the problem of SAN cracking, characterized in that: It includes a panel, an upper movable mold, a lower fixed mold, an ejector plate, and a bottom plate from top to bottom. The upper mold core is embedded in the bottom of the upper movable mold, and the lower mold core is embedded in the lower fixed mold. The panel is provided with a first molding column and a second molding column. A cylindrical insert is slidably provided in the middle of the lower mold core, and the cylindrical insert has a first molding groove. The lower mold core is provided with a second molding groove and an annular insert. The first molding column and the second molding column can slide through the upper movable mold and the upper mold core to the first molding groove and the second molding groove. Ejector rods are provided at the bottom of the cylindrical insert and the annular insert, and the ejector rods extend downward and are fixed to the ejector plate.

2. The mold structure for solving the problem of SAN cracking according to claim 1, characterized in that: The upper die core is further provided with a protrusion, and the lower die core is further provided with a third forming groove.

3. The mold structure for solving the problem of SAN cracking according to claim 1, characterized in that: An annular groove is further arranged on the annular insert.

4. The mold structure for solving the problem of SAN cracking according to claim 1, characterized in that: The ejector plate comprises two first ejector plates and two second ejector plates, and a secondary ejector machine is arranged between the first ejector plate and the second ejector plate.

5. The mold structure for solving the problem of SAN cracking according to claim 4 is characterized in that: A plurality of ejector pins are further arranged on the second ejector plate. The ejector pins can slide upward through the lower fixed mold and the cylindrical insert. The ejector rod is mounted on the first ejector plate.

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