Resin lens injection mold assembly

Abstract

The utility model provides a resin lens injection mold assembly which comprises a rectangular mounting seat A and a rotary driving structure, the rotary driving structure is mounted at the bottom of the mounting seat A, mold closing receding grooves are formed in the four sides of the mounting seat A respectively, a forming mold base is connected into each mold closing receding groove through an electric telescopic rod A, and the forming mold base is connected with the rotary driving structure through an electric telescopic rod B; each forming die holder is hinged to a split die holder, and a split die holder overturning driving mechanism is arranged at the bottom of each forming die holder. When the electric telescopic rod A is located at the maximum extending distance, the forming die base and the opposite die closing base after die closing are located outside the die closing receding groove. The processes of injection molding, stretching curing, mold opening and material taking and the like can be achieved, the processes are reduced, and the production efficiency is improved.

Description

Technical Field

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

[0002] The production process of resin lenses includes injection molding, primary curing, edging, cleaning, secondary curing, and testing. Injection molding and primary curing are typically handled separately. That is, after the lens is molded using an injection mold, the mold is transferred to a curing machine for curing, and then the mold is opened for edging. This operation method has the disadvantage of requiring mold disassembly and transfer, which increases the number of steps and reduces production efficiency. This situation urgently needs improvement.

[0003] The Chinese authorization announcement number is CN217916521 U, and the authorization announcement date is November 29, 2022. It discloses a mold structure for secondary injection molding of transparent lenses, including a work frame and a disassembly and assembly mechanism. A rotating mechanism for station adjustment is provided in the lower middle part of the work frame, and the disassembly and assembly mechanism for type replacement is installed on both sides of the upper inner part of the rotating mechanism. The upper two sides of the work frame are provided with a matching mechanism for matching work. The defect of this existing technology is that the cavity is fixed and can only achieve rotational movement, but not linear displacement. In view of this situation, there is an urgent need for a structure that can enable the cavity to achieve linear displacement and can be directly pushed into the curing equipment for curing without disassembling the mold. Utility Model Content

[0004] Based on this, the purpose of the present invention is to provide a resin lens injection mold assembly that can realize the processes of injection molding, extension curing, mold opening and material removal, thereby reducing the number of processes and improving production efficiency.

[0005] The utility model provides a resin lens injection mold assembly, comprising a rectangular mounting seat A and a rotary drive structure, wherein the rotary drive structure is mounted on the bottom of the mounting seat A, and mold clearance grooves are formed on the four sides of the mounting seat A, each of the mold clearance grooves is connected to a forming mold base via an electric telescopic rod A, each of the forming mold bases is hingedly connected to a counter-mold base, and a counter-mold base flipping drive mechanism is provided at the bottom of each of the forming mold bases; when the electric telescopic rod A is at the maximum extension distance, the forming mold base and the counter-mold base after mold clamping are located outside the mold clearance groove.

[0006] Preferably, a cavity is formed on a side surface corresponding to the forming mold base and the mating mold base; and an injection feeding hole corresponding to the cavity is provided through the mating mold base.

[0007] Preferably, the flipping drive mechanism of the mating mold base includes a rotary drive motor A and a flip arm; a flip arm mounting base is provided at the bottom of the forming mold base, the rotary drive motor A is installed on one side of the flip arm mounting base and its power output end is connected to the flip arm; the other end of the flip arm is connected to the outer side surface of the mating mold base.

[0008] Preferably, a through hole A is formed vertically through the middle of the mounting seat A, and a mounting seat B corresponding to the forming mold base is provided in the through hole A; the bottom of the mounting seat B is mounted on the workbench through a connecting rod.

[0009] Preferably, the rotary drive structure includes a driven wheel, a driving wheel, and a rotary drive motor B. A hollow mounting ring is provided at the bottom of the mounting seat A. The driven wheel is correspondingly sleeved on the outer side surface of the hollow mounting ring. The rotary drive motor B is installed on the workbench and its power output end is connected to the driving wheel. The driving wheel is engaged with the driven wheel; the connecting rod passes through the hollow mounting ring and extends out of the hollow mounting ring.

[0010] Preferably, a positioning groove is formed on the upper portion of one side surface of the forming mold base with the mold cavity, and a positioning hole is provided through the position of the matching mold base corresponding to the positioning groove, and the positioning groove and the positioning hole are coaxially arranged.

[0011] Preferably, a sealing groove is formed on one side of the forming mold base with the mold cavity around the outer side of the mold cavity, and a sealing convex ring is formed on the side of the matching mold base corresponding to the mold cavity to cooperate with the sealing groove.

[0012] Preferably, a tension spring mold-closing give-way groove is formed in each of the mold-closing give-way grooves, and a tension spring connected to the forming die base is provided in each of the tension spring mold-closing give-way grooves.

[0013] Preferably, electric telescopic rods B are provided on both opposite sides of the mounting seat B; a through hole B is provided at a position corresponding to the mounting seat A and the electric telescopic rod B for the power output end of the electric telescopic rod B to extend out, and an ejection hole is provided at a position corresponding to the through hole B and connected to the cavity and for the power output end of the electric telescopic rod B to extend out.

[0014] The beneficial effects of the present invention are as follows: the present invention is set on a production line, and after the forming mold base and the matching mold base are clamped, injection molding is performed through the injection control unit, and the mounting seat A is rotated 90° by the rotary drive structure, and the cavity for injection molding is rotated to the side of the curing equipment installed on the production line, and the forming mold base and the matching mold base after clamping are pushed into the curing equipment by the electric telescopic rod A for high-temperature curing; after high-temperature curing is completed, the mounting seat A is rotated 90° by the rotary drive structure, and the cavity for high-temperature curing is rotated to the side of the material taking equipment installed on the production line, and the forming mold base and the matching mold base are opened, thereby facilitating the material taking equipment to take the material; through such a structural setting, the processes of injection molding, extension curing, mold opening and material taking can be realized, the process can be shortened, and the production efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional view of the present invention.

[0016] Figure 2 It is a top view of the utility model.

[0017] The accompanying drawings are marked as: mold base 10, positioning hole 11, sealing convex ring 12, mold clearance groove 13, ejection hole 14, cavity 15, sealing groove 16, positioning groove 17, forming mold base 18, electric telescopic rod A19, tension spring 20, through hole B21, through hole A22, mounting seat A23, injection control unit 24, rotation drive motor A25, flip arm 26, flip arm mounting seat 27, driving wheel 28, rotation drive motor B29, connecting rod 30, driven wheel 31, hollow mounting ring 32, mold base flipping drive mechanism 33, injection feeding hole 34, mounting seat B35, electric telescopic rod B36, curing equipment 37, and material taking equipment 38. DETAILED DESCRIPTION

[0018] 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.

[0019] 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.

[0020] Please refer to Figure 1-2As shown, the utility model provides a resin lens injection mold assembly, including a rectangular mounting seat A23 and a rotary drive structure, the rotary drive structure is installed at the bottom of the mounting seat A23, and mold clearance grooves 13 are formed on the four sides of the mounting seat A23. Each mold clearance groove 13 is connected to a forming mold base 18 through an electric telescopic rod A19, and each forming mold base 18 is hinged with a matching mold base 10. The bottom of each forming mold base 18 is provided with a matching mold base flipping drive mechanism 33; when the electric telescopic rod A19 is at the maximum extension distance, the forming mold base 18 and the matching mold base 10 after mold closing are located outside the mold clearance groove 13.

[0021] A cavity 15 is formed on one side of the forming mold base 18 corresponding to the mating mold base 10 ; an injection hole 34 corresponding to the cavity 15 is provided through the mating mold base 10 .

[0022] The mold base flipping drive mechanism 33 includes a rotary drive motor A25 and a flip arm 26. A flip arm mounting base 27 is provided at the bottom of the mold base 18. The rotary drive motor A25 is mounted on one side of the flip arm mounting base 27, and its power output end is connected to the flip arm 26. The other end of the flip arm 26 is connected to the outer surface of the mold base 10. The power output of the rotary drive motor A25 causes the flip arm 26 to rotate the mold base 10.

[0023] A through-hole A22 runs vertically through the center of the mounting base A23. A mounting base B35 corresponding to the forming die base 18 is located within this through-hole A22. The bottom of the mounting base B35 is mounted to the workbench via a connecting rod 30. Electric telescopic rods B36 are located on opposite sides of the mounting base B35. A through-hole B21 is provided in the mounting base A23 corresponding to the electric telescopic rod B36, through which the power output end of the electric telescopic rod B36 extends. An ejection hole 14 is provided in the forming die base 18 corresponding to the through-hole B21, communicating with the mold cavity 15 and allowing the power output end of the electric telescopic rod B36 to extend. This structural setting ensures that the mounting base A23 will not affect the mounting base B35 when it rotates; on the workbench, the electric telescopic rods B36 on both sides are always respectively close to the side with the injection control part and the material taking device. When injecting, the electric telescopic rod B36 close to the injection control part side extends into the mold cavity to block the ejection hole 14; and the electric telescopic rod B36 close to the material taking device side assists the material taking device to eject the product after the forming mold base and the matching mold base are opened.

[0024] The rotary drive structure includes a driven wheel 31, a driving wheel 28, and a rotary drive motor B29. A hollow mounting ring 32 is provided at the bottom of the mounting base A23. The driven wheel 31 is sleeved onto the outer surface of the hollow mounting ring 32. The rotary drive motor B29 is mounted on the workbench, and its power output end is connected to the driving wheel 28, which meshes with the driven wheel 31. A connecting rod 30 passes through the hollow mounting ring 32 and extends outside of it. The hollow mounting ring 32 is connected to the workbench via a bearing. During operation, the rotary drive motor B29 outputs power, which drives the driven wheel 31 to rotate through the driving wheel 28. The driven wheel 31 then causes the hollow mounting ring 32 to rotate synchronously with the mounting base A23.

[0025] A positioning groove 17 is formed on the upper side of the side surface of the molding die base 18 that carries the mold cavity 15. A positioning hole 11 is provided through the mold base 10 at a position corresponding to the positioning groove 17. The positioning groove 17 and the positioning hole 11 are coaxially arranged. By providing the positioning groove 17 and the positioning hole 11, when the injection control unit on the production line is about to perform an injection operation, the positioning post on the injection control unit first passes through the positioning hole 11 and enters the positioning groove 17 to achieve positioning, thereby ensuring mold clamping accuracy.

[0026] The side of the forming mold base 18 with the mold cavity 15 is formed with a sealing groove 16 around the outside of the mold cavity 15. The side of the mold base 10 corresponding to the mold cavity 15 is formed with a sealing protrusion 12 that cooperates with the sealing groove 16. After the mold is closed, the sealing protrusion 12 is correspondingly embedded in the sealing groove 16, thereby improving the sealing degree of the mold cavity.

[0027] A tension spring clamping mold making way groove 13 is formed in each clamping mold making way groove 13, and a tension spring 20 connected to the forming die base 18 is provided in each tension spring clamping mold making way groove 13. By arranging the tension spring 20, the auxiliary forming die base 18 is reset.

[0028] The utility model is set on a production line. After the forming mold base and the matching mold base are clamped, injection molding is performed through the injection control unit 24. The mounting seat A is rotated 90° by the rotary drive structure, and the cavity for injection molding is rotated to the side of the curing device 37 installed on the production line. The forming mold base and the matching mold base after clamping are pushed into the curing device 37 by the electric telescopic rod A for high-temperature curing; after high-temperature curing is completed, the mounting seat A is rotated 90° by the rotary drive structure, and the cavity for high-temperature curing is rotated to the side of the material taking device 38 installed on the production line, and the forming mold base and the matching mold base are opened, thereby facilitating the material taking device 38 to take the material; through such a structural setting, the processes of injection molding, extension curing, mold opening and material taking can be realized, the process can be shortened, and the production efficiency can be improved.

[0029] 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. A resin lens injection mold assembly, comprising a rectangular mounting seat A (23) and a rotary drive structure, wherein the rotary drive structure is mounted on the bottom of the mounting seat A (23), characterized in that: The four sides of the mounting base A (23) are formed with mold clearance grooves (13), each of the mold clearance grooves (13) is connected to a forming mold base (18) through an electric telescopic rod A (19), each of the forming mold bases (18) is hinged to a matching mold base (10), and a matching mold base flipping drive mechanism (33) is provided at the bottom of each forming mold base (18); when the electric telescopic rod A (19) is at the maximum extension distance, the forming mold base (18) and the matching mold base (10) after mold closing are located outside the mold clearance groove (13).

2. The resin lens injection mold assembly according to claim 1, characterized in that: A cavity (15) is formed on a side surface of the forming mold base (18) corresponding to the mating mold base (10); and an injection molding feed hole (34) corresponding to the cavity (15) is provided through the mating mold base (10).

3. The resin lens injection mold assembly according to claim 2, characterized in that: The mold base flipping drive mechanism (33) comprises a rotary drive motor A (25) and a flip arm (26); a flip arm mounting seat (27) is provided at the bottom of the forming mold base (18); the rotary drive motor A (25) is mounted on one side of the flip arm mounting seat (27) and its power output end is connected to the flip arm (26); the other end of the flip arm (26) is connected to the outer side surface of the mold base (10).

4. The resin lens injection mold assembly according to claim 3, characterized in that: A through hole A (22) is formed vertically through the middle of the mounting seat A (23), and a mounting seat B (35) corresponding to the forming die seat (18) is arranged in the through hole A (22); the bottom of the mounting seat B (35) is mounted on the workbench through a connecting rod (30).

5. The resin lens injection mold assembly according to claim 4, characterized in that: The rotary drive structure comprises a driven wheel (31), a driving wheel (28), and a rotary drive motor B (29); a hollow mounting ring (32) is provided at the bottom of the mounting seat A (23); the driven wheel (31) is correspondingly sleeved on the outer side of the hollow mounting ring (32); the rotary drive motor B (29) is mounted on a workbench and its power output end is connected to the driving wheel (28); the driving wheel (28) is meshed with the driven wheel (31); and the connecting rod (30) passes through the hollow mounting ring (32) and extends out of the hollow mounting ring (32).

6. The resin lens injection mold assembly according to claim 5, characterized in that: A positioning groove (17) is formed on the upper side of one side surface of the molding die base (18) with the molding cavity (15); a positioning hole (11) is provided through the position of the mating die base (10) corresponding to the positioning groove (17); and the positioning groove (17) and the positioning hole (11) are coaxially arranged.

7. The resin lens injection mold assembly according to claim 6, characterized in that: A sealing groove (16) is formed on one side of the molding die base (18) with the molding cavity (15) around the outer side of the molding cavity (15), and a sealing convex ring (12) is formed on the side of the mating die base (10) corresponding to the molding cavity (15) to cooperate with the sealing groove (16).

8. The resin lens injection mold assembly according to claim 7, characterized in that: A tension spring mold clearance groove (13) is formed in each of the mold clearance grooves (13), and a tension spring (20) connected to the forming mold base (18) is provided in each of the tension spring mold clearance grooves (13).

9. The resin lens injection mold assembly according to claim 7, characterized in that: An electric telescopic rod B (36) is provided on opposite sides of the mounting seat B (35); a through hole B (21) is provided at a position corresponding to the mounting seat A (23) and the electric telescopic rod B (36) for the power output end of the electric telescopic rod B (36) to extend out, and an ejection hole (14) is provided at a position corresponding to the through hole B (21) and the molding die seat (18) to communicate with the molding cavity (15) and for the power output end of the electric telescopic rod B (36) to extend out.

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