Efficient heat dissipation resin lens injection mold assembly

Abstract

The utility model provides an efficient heat dissipation resin lens injection mold assembly which comprises an upper mold mounting plate and a lower mold mounting plate, a columnar upper mold seat is arranged in the middle of the upper mold mounting plate, a columnar lower mold seat is arranged on the upper surface of the lower mold mounting plate, and a bearing connected with the lower mold mounting plate is sleeved on the outer surface of the lower mold seat; a lower forming die cavity is coaxially formed in the upper surface of the lower die base, a receding cavity allowing the lower forming die cavity to be inserted therein is formed in the lower surface of the upper die base, an upper forming male die corresponding to the lower forming die cavity is axially arranged in the receding cavity in a protruding mode, and the upper die mounting plate is provided with a sprue gate. The sprue gate sequentially penetrates through the upper die mounting plate and the upper forming male die; an external thread is formed on the upper part of the outer side surface of the lower forming die cavity, and an internal thread matched with the external thread is formed on the side wall of the inner cavity of the abdicating cavity; and the sealing degree of die assembly is ensured, and a good heat dissipation and cooling effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of resin lens processing for vehicle lamp lenses, in particular to an efficient heat dissipation resin lens injection mold assembly. Background Art

[0002] The Chinese authorization announcement number is CN211941942 U, and the authorization announcement date is November 17, 2020. It discloses an injection mold that is easy to control temperature, including a movable mold, a fixed mold, a cooling pipe and a knob. The movable mold and the fixed mold are connected by a mold, and the top surfaces of the movable mold and the fixed mold are symmetrically provided with a lifting ring mounting hole for lifting, and the bottom end surfaces of the movable mold and the fixed mold are fixedly installed with supporting mold feet by bolt threads. The movable mold is provided with a mold cavity on one side facing the fixed mold, and a rectangular mounting cavity is provided inside the movable mold and located vertically directly below the mold cavity. A cooling pipe for cooling the mold body is connected to one side of the movable mold, and liquid nitrogen is contained in the cooling pipe. One end of the cooling pipe extends to the outer wall of the movable mold, and the other end of the cooling pipe penetrates the other end of the movable mold and is connected by a plug cover. This injection mold that is easy to control temperature not only facilitates cooling and cooling in the mold to prevent high temperature from damaging the product, but also facilitates the installation and disassembly of the cooling fan. The shortcomings of this existing technology are: 1) the use of fastening bolts and clamping clips for mold clamping increases the manual mold clamping process and requires improved sealing of the movable and fixed molds after closing; 2) the use of cooling pipes for cooling, which are mainly located in a rectangular mounting cavity directly below the mold cavity, are relatively concentrated, resulting in less than ideal cooling effect. Given this situation, improvement is urgently needed. Utility Model Content

[0003] Based on this, the purpose of the present invention is to provide a high-efficiency heat dissipation resin lens injection mold assembly, which ensures the sealing degree of the mold and has a good heat dissipation and cooling effect.

[0004] The utility model provides a high-efficiency heat dissipation resin lens injection mold assembly, comprising an upper mold mounting plate and a lower mold mounting plate, wherein a cylindrical upper mold seat is centrally arranged on the upper mold mounting plate, a cylindrical lower mold seat is arranged on the upper surface of the lower mold mounting plate, and a bearing connected to the lower mold mounting plate is sleeved on the outer surface of the lower mold seat; a lower molding cavity is formed coaxially on the upper surface of the lower mold seat, a clearance cavity for inserting the lower molding cavity is formed on the lower surface of the upper mold seat, an upper molding convex mold corresponding to the lower molding cavity is convexly arranged in the clearance cavity for the axis, and a pouring gate is provided on the upper mold mounting plate, and the pouring gate sequentially passes through the upper mold mounting plate and the upper molding convex mold;

[0005] An external thread is formed on the upper portion of the outer surface of the lower molding cavity, and an internal thread matching the external thread is formed on the inner cavity side wall of the give way cavity;

[0006] The lower die mounting plate is connected to the base plate via a connecting rod; the bottom of the lower die seat extends out of the lower die mounting plate to form a coaxial convex external gear, a rotary drive motor is mounted on the upper surface of the base plate, a drive gear is connected to the power output end of the rotary drive motor, and the drive gear is meshed with the external gear; the bottom of the base plate is connected to the lifting drive motor;

[0007] A lower cooling cavity is formed in the lower die base and directly below the lower forming die cavity, and the lower cooling cavity extends out of the lower die base through a pipeline and is connected to a pump;

[0008] An upper cooling cavity is formed in the upper die base and directly above the upper forming punch, and the upper cooling cavity extends out of the lower die base through a pipeline and is connected to a pump;

[0009] The lower surface of the upper mold mounting plate is movably provided with upper movable cooling cavities on four sides surrounding the upper mold base. A linear motor A is provided at a position on the upper surface of the upper mold mounting plate corresponding to each upper movable cooling cavity. A guide hole is opened at a position on the upper mold mounting plate corresponding to each linear motor A. The linear motor A passes through the guide hole through a slide and is connected to the upper movable cooling cavity; each upper movable cooling cavity is connected to a pump through a pipeline.

[0010] The upper surface of the lower mold mounting plate is movably provided with lower movable cooling cavities on four sides surrounding the lower mold base. A linear motor B is provided at a position on the lower surface of the lower mold mounting plate corresponding to each of the lower movable cooling cavities. A guide hole is provided at a position on the lower mold mounting plate corresponding to each of the linear motors B. The linear motor B passes through the guide hole through a slide and is connected to the lower movable cooling cavity. Each of the lower movable cooling cavities is connected to a pump through a pipeline.

[0011] The pump is connected to a liquid nitrogen supply source.

[0012] Preferably, an upper guide column mounting seat is provided on the outer side surface of the upper mold mounting plate, and a lower guide column mounting seat corresponding to the upper guide column mounting seat is provided on the outer side surface of the lower mold mounting plate, and a guide column is connected through the upper guide column mounting seat and the lower guide column mounting seat.

[0013] Preferably, a telescopic motor is provided on the upper surface of the base plate at a position corresponding to the lower molding cavity, and a push rod is connected to the power output end of the telescopic motor, and the push rod passes through the external gear and the lower mold base coaxially in sequence.

[0014] Preferably, when the upper movable cooling cavities on four sides are in contact with each other, a heat dissipation space of the upper mold base is formed; the inner diameter of the heat dissipation space of the upper mold base is set to N, and the outer diameter of the upper mold base is set to M, N=M.

[0015] Preferably, when the four sides of the lower movable cooling cavity are in contact with each other, a heat dissipation space of the lower mold base is formed; the inner diameter of the heat dissipation space of the lower mold base is set to A, and the outer diameter of the lower mold base is set to B, A=B.

[0016] The beneficial effects of the utility model are as follows: the upper mold base and the lower mold base realize a threaded connection relationship, thereby ensuring the sealing of the mold; the upper mold base and the lower mold base are both provided with cooling cavities inside and outside, which greatly improves the heat dissipation and cooling speed, and has a good heat dissipation and cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional view of the present invention (top view).

[0018] Figure 2 This is a three-dimensional view of the present invention (looking up from an angle A).

[0019] Figure 3 This is a three-dimensional view of the present invention (looking up from an angle B).

[0020] Figure 4 This is a cross-sectional view of the lower die base.

[0021] Figure 5 This is a cross-sectional view of the upper die base.

[0022] The figures are marked as: guide column 10, upper guide column mounting seat 11, lower forming cavity 13, upper forming punch 12, lower die seat 14, lower guide column mounting seat 15, upper die mounting plate 17, lower die mounting plate 16, pouring gate 18, guide hole 19, linear motor A20, upper movable cooling cavity 21, upper die seat 22, lower movable cooling cavity 23, connecting rod 24, base plate 26, linear motor B25, external gear 27, push rod 28, telescopic motor 29, rotation drive motor 30, external thread 31, drive gear 32, lower cooling cavity 33, internal thread 34, bearing 35, give way cavity 36, upper cooling cavity 37, lifting drive motor 38. DETAILED DESCRIPTION

[0023] In order to further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention is described in further detail below in conjunction with specific implementation methods and accompanying drawings.

[0024] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; they can refer to mechanical connection or electrical connection; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0025] Please refer to Figure 1-5 As shown, the utility model provides a high-efficiency heat dissipation resin lens injection mold assembly, including an upper mold mounting plate 17 and a lower mold mounting plate 16, the upper mold mounting plate 17 is centrally provided with a cylindrical upper mold base 22, the upper surface of the lower mold mounting plate 16 is provided with a cylindrical lower mold base 14, the outer surface of the lower mold base 14 is sleeved with a bearing 35 connected to the lower mold mounting plate 16; the upper surface of the lower mold base 14 is coaxially formed with a lower molding cavity 13, the lower surface of the upper mold base 22 is formed with a clearance cavity 36 for inserting the lower molding cavity 13, the clearance cavity 36 is coaxially convexly provided with an upper molding punch 12 corresponding to the lower molding cavity 13, the upper mold mounting plate 17 is provided with a pouring gate 18, and the pouring gate 18 passes through the upper mold mounting plate 17 and the upper molding punch 12 in sequence.

[0026] An external thread 31 is formed on the upper portion of the outer surface of the lower molding cavity 13 , and an internal thread 34 that cooperates with the external thread 31 is formed on the inner side wall of the relief cavity 36 .

[0027] The lower die mounting plate 16 is connected to a base plate 26 via a connecting rod 24. The bottom of the lower die base 14 extends outward from the lower die mounting plate 16 to form a coaxial projection with an external gear 27. A rotary drive motor 30 is mounted on the top surface of the base plate 26. The power output of the rotary drive motor 30 is connected to a drive gear 32, which meshes with the external gear 27. The bottom of the base plate 26 is connected to a lift drive motor 38.

[0028] A lower cooling chamber 33 is formed in the lower die base 14 and directly below the lower forming cavity 13 . The lower cooling chamber 33 extends out of the lower die base 14 through a pipeline and is connected to a pump.

[0029] An upper cooling cavity 37 is formed in the upper die base 22 and directly above the upper forming punch 12 . The upper cooling cavity 37 extends out of the lower die base 14 through a pipeline and is connected to a pump.

[0030] Upper movable cooling cavities 21 are movably provided on the four sides of the lower surface of the upper mold mounting plate 17 surrounding the upper mold base 22. Linear motors A20 are provided at positions corresponding to the upper surface of the upper mold mounting plate 17 and each upper movable cooling cavity 21. Guide holes 19 are opened at positions corresponding to the upper mold mounting plate 17 and each linear motor A20. The linear motor A20 is connected to the upper movable cooling cavity 21 through a slide penetrating the guide holes 19; each upper movable cooling cavity 21 is connected to a pump through a pipeline.

[0031] The upper surface of the lower mold mounting plate 16 is movably provided with lower movable cooling cavities 23 around the four sides of the lower mold base 14. Linear motors B25 are provided at positions corresponding to the lower surface of the lower mold mounting plate 16 and each lower movable cooling cavity 23. Guide holes 19 are opened at positions corresponding to the lower mold mounting plate 16 and each linear motor B25. The linear motor B25 is connected to the lower movable cooling cavity 23 through a slide penetrating the guide holes 19; each lower movable cooling cavity 23 is connected to a pump through a pipeline.

[0032] The pump is connected to a liquid nitrogen supply source.

[0033] An upper guide post mounting seat 11 is provided on the outer side of the upper mold mounting plate 17, and a lower guide post mounting seat 15 corresponding to the upper guide post mounting seat 11 is provided on the outer side of the lower mold mounting plate 16. A guide post 10 is connected through the upper guide post mounting seat 11 and the lower guide post mounting seat 15.

[0034] A telescopic motor 29 is provided on the upper surface of the bottom plate 26 at a position corresponding to the lower molding cavity 13 . The power output end of the telescopic motor 29 is connected to a push rod 28 . The push rod 28 coaxially passes through the external gear 27 and the lower mold base 14 .

[0035] When the movable cooling cavities 21 on the four sides are in contact with each other, a heat dissipation space of the upper mold base is formed. The inner diameter of the heat dissipation space of the upper mold base is set to N, and the outer diameter of the upper mold base 22 is set to M, N=M.

[0036] When the four lower movable cooling cavities 23 are in contact with each other, a heat dissipation space of the lower die base is formed. The inner diameter of the heat dissipation space of the lower die base is set to A, and the outer diameter of the lower die base 14 is set to B, A=B.

[0037] The operating steps of this embodiment are:

[0038] 1. The lifting drive motor 38 causes the bottom plate 26 and the lower mold mounting plate 16 to move toward the upper mold mounting plate 17;

[0039] 2. When the lower die base 14 and the upper die base 22 are closed, the rotating drive motor 30 causes the drive gear 32 to drive the external gear 27 to rotate, thereby synchronously causing the lower die base 14 to rotate. During the rotation of the lower die base 14, the internal thread 34 and the external thread 31 cooperate to achieve the final closing of the die;

[0040] 3. The pouring equipment injects resin into the pouring port 18;

[0041] 4. After a predetermined time, liquid nitrogen is injected into the lower cooling chamber 33 and the upper cooling chamber 37 through a pump;

[0042] 5. Subsequently, the upper movable cooling cavity 21 and the lower movable cooling cavity 23 move toward the lower mold base 14 and the upper mold base 22 respectively, forming an upper mold base heat dissipation space and a lower mold base heat dissipation space, and liquid nitrogen is injected into each upper movable cooling cavity 21 and the lower movable cooling cavity 23 by a pump;

[0043] 6. After a predetermined period of cooling, the lifting drive motor 38 causes the bottom plate 26 and the lower mold mounting plate 16 to move away from the upper mold mounting plate 17. At the same time, the rotating drive motor 30 causes the driving gear 32 to rotate the external gear 27, and the internal thread 34 disengages from the external thread, thereby completing the mold opening.

[0044] 7. The telescopic motor 29 pushes the push rod 28 upward to a predetermined height, thereby lifting the product to a predetermined height for equipment or manual access.

[0045] 8. Repeat the above steps.

[0046] In this embodiment, the upper mold base and the lower mold base are connected by a threaded connection, thereby ensuring the sealing of the mold; cooling cavities are provided inside and outside the upper mold base and the lower mold base, which greatly improves the heat dissipation cooling speed and has a good heat dissipation cooling effect.

[0047] The above-described embodiment merely represents one embodiment of the present invention. While the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An efficient heat dissipation resin lens injection mold assembly, comprising an upper mold mounting plate (17) and a lower mold mounting plate (16), characterized in that: The upper mold mounting plate (17) is centrally provided with a columnar upper mold base (22), the upper surface of the lower mold mounting plate (16) is provided with a columnar lower mold base (14), the outer surface of the lower mold base (14) is sleeved with a bearing (35) connected to the lower mold mounting plate (16); the upper surface of the lower mold base (14) is coaxially formed with a lower molding cavity (13), the lower surface of the upper mold base (22) is formed with a clearance cavity (36) for inserting the lower molding cavity (13), the clearance cavity (36) is coaxially provided with an upper molding convex mold (12) corresponding to the lower molding cavity (13), the upper mold mounting plate (17) is provided with a pouring gate (18), and the pouring gate (18) passes through the upper mold mounting plate (17) and the upper molding convex mold (12) in sequence; An external thread (31) is formed on the upper portion of the outer surface of the lower molding cavity (13), and an internal thread (34) that matches the external thread (31) is formed on the inner cavity side wall of the clearance cavity (36); The lower die mounting plate (16) is connected to a base plate (26) via a connecting rod (24); the bottom of the lower die base (14) extends out of the lower die mounting plate (16) to form a coaxial convex external gear (27); a rotary drive motor (30) is installed on the upper surface of the base plate (26); a power output end of the rotary drive motor (30) is connected to a drive gear (32), and the drive gear (32) is meshed with the external gear (27); the bottom of the base plate (26) is connected to a lifting drive motor (38); A lower cooling cavity (33) is formed in the lower die base (14) and directly below the lower forming die cavity (13); the lower cooling cavity (33) extends out of the lower die base (14) through a pipeline and is connected to a pump; An upper cooling cavity (37) is formed in the upper die base (22) and directly above the upper forming punch (12), and the upper cooling cavity (37) extends out of the lower die base (14) through a pipeline and is connected to a pump; The lower surface of the upper mold mounting plate (17) is movably provided with upper movable cooling cavities (21) around the four sides of the upper mold base (22); the upper surface of the upper mold mounting plate (17) and the position corresponding to each upper movable cooling cavity (21) are provided with linear motors A (20); the upper mold mounting plate (17) and the position corresponding to each linear motor A (20) are provided with guide holes (19); the linear motors A (20) are connected to the upper movable cooling cavities (21) through the guide holes (19) passing through the slide; each upper movable cooling cavity (21) is connected to a pump through a pipeline; The upper surface of the lower mold mounting plate (16) is movably provided with lower movable cooling cavities (23) around the four sides of the lower mold base (14); the lower surface of the lower mold mounting plate (16) and the position corresponding to each lower movable cooling cavity (23) are provided with linear motors B (25); the lower mold mounting plate (16) and the position corresponding to each linear motor B (25) are provided with guide holes (19); the linear motors B (25) are connected to the lower movable cooling cavities (23) through the guide holes (19) passing through the slide; each lower movable cooling cavity (23) is connected to a pump through a pipeline; The pump is connected to a liquid nitrogen supply source.

2. The high-efficiency heat dissipation resin lens injection mold assembly according to claim 1, characterized in that: An upper guide column mounting seat (11) is provided on the outer side surface of the upper mold mounting plate (17), and a lower guide column mounting seat (15) corresponding to the upper guide column mounting seat (11) is provided on the outer side surface of the lower mold mounting plate (16), and a guide column (10) is connected through the upper guide column mounting seat (11) and the lower guide column mounting seat (15).

3. The high-efficiency heat dissipation resin lens injection mold assembly according to claim 2, characterized in that: A telescopic motor (29) is provided on the upper surface of the base plate (26) at a position corresponding to the lower molding cavity (13); a power output end of the telescopic motor (29) is connected to a push rod (28); and the push rod (28) coaxially passes through the external gear (27) and the lower mold base (14).

4. The high-efficiency heat dissipation resin lens injection mold assembly according to claim 3, characterized in that: When the upper movable cooling chambers (21) on four sides are in contact with each other, an upper die base heat dissipation space is formed; the inner diameter of the upper die base heat dissipation space is set to N, and the outer diameter of the upper die base (22) is set to M, where N=M.

5. The high-efficiency heat dissipation resin lens injection mold assembly according to claim 4, characterized in that: When the four sides of the lower movable cooling cavity (23) are in contact with each other, a lower die base heat dissipation space is formed; the inner diameter of the lower die base heat dissipation space is set to A, and the outer diameter of the lower die base (14) is set to B, A=B.

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