Injection molding equipment for spectacle frame production

Abstract

The utility model discloses injection molding equipment for spectacle frame production, relates to the technical field of injection molding equipment, and provides the following scheme aiming at the problems that in the prior art, after injection molding is completed, demolding is inconvenient, generally, manual demolding is carried out, and a user is prone to being scalded, the injection molding equipment comprises a bottom plate, and supporting frames are fixed to the two ends of the top of the bottom plate; a lower mold plate is arranged between the two supporting frames, an upper mold plate is arranged above the lower mold plate, and a mold shell is arranged between the upper mold plate and the lower mold plate. The two-way lead screw is rotated to drive the lower mold plate and the upper mold plate which are in threaded connection to be attached to the mold shell, so that the round block is inserted into the mold cavity to form an injection molding part forming frame, and then the injection molding box conducts injection molding operation on the mold cavity of the mold shell through the connecting pipe. The cooling liquid in the cooling box circularly flows in the mold shell through the liquid conveying pipe by the conveying pump, and the cooling liquid flows in the cavity structure of the mold shell so as to cool the injection molding part.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding equipment, in particular to an injection molding equipment for producing eyeglass frames. Background Art

[0002] In today's social life, the pressure of work and study is relatively high, causing many young people to have myopia and need to wear glasses. A pair of glasses frames usually consists of the main parts such as the frame, nose pads, studs and temples. In addition to the above parts, there are also temple covers, stud screws, hinge screws, etc. The frame is the assembly position of the lens, which affects the cutting of the lens and the appearance of the glasses. Generally, there will be a mirror groove for embedding the lens in the inner circle of the frame. Nowadays, most plastic glasses frames are made by injection molding.

[0003] However, most existing plastic eyeglass frames are molded by resin injection molding. However, after the injection molding is completed, it is inconvenient to demould, and generally the demoulding is done manually, which is easy to cause burns. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an injection molding device for producing eyeglass frames, which overcomes the deficiencies of the prior art and effectively solves the problem that after injection molding is completed, it is inconvenient to demould, and demould is generally performed manually, which is easy to get burned.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An injection molding device for producing eyeglass frames comprises a base plate, support frames are fixed at both ends of the top of the base plate, a lower template is arranged between the two support frames, an upper template is arranged above the lower template, and a mold shell is arranged between the upper template and the lower template, a cooling box placed on the top of the base plate is arranged below the mold shell, and infusion tubes are plugged and fixed to both ends of the top of the cooling box and both ends of the bottom of the mold shell, the tops of the two support frames are connected to injection molding boxes, and a connecting tube is connected between the injection molding box and the upper template.

[0007] The servo motor drives the bidirectional screw to rotate, and the lower template and the upper template slide along the slide bar. The rotating bidirectional screw drives the threaded lower template and the upper template to fit with the mold shell respectively, so that the round block is inserted into the mold cavity to form an injection molding frame. Then the injection molding box performs injection molding operation into the mold cavity of the mold shell through the connecting pipe. The delivery pump circulates the coolant in the cooling box through the infusion pipe in the mold shell. The coolant flows in the cavity structure of the mold shell to cool the injection molded part. After the injection molded part is cooled and formed, the bidirectional screw rotates to drive the lower template and the upper template away from each other, so that the injection molded part can be taken out easily.

[0008] Preferably, the inner walls at both ends of one of the support frames are rotatably connected to a bidirectional screw rod, and the top end of the bidirectional screw rod is connected to a servo motor installed on the top of the support frame.

[0009] Preferably, sliding rods are fixed to the inner walls at both ends of the other support frame, and one end of the lower template and the upper template are plugged and slidably connected to the sliding rods, and the other ends of the lower template and the upper template are screwed to the bidirectional screw rods.

[0010] Preferably, round blocks are fixed at both ends of the bottom of the upper template, and a fixing tube that passes through the bottom of the upper template is plugged and fixed to the top of the upper template, and the fixing tube is plugged into the connecting tube.

[0011] Preferably, the mold shell is a hollow structure, and a mold cavity is opened on the top of the mold shell.

[0012] Preferably, a refrigerator is installed at one end of the cooling box, and an infusion pump is installed in the cooling box, and the water outlet of the infusion pump is plugged into one of the infusion tubes.

[0013] The beneficial effects of the utility model are:

[0014] By rotating the bidirectional screw rod, the screwed lower template and upper template are respectively fitted with the mold shell, so that the round block is inserted into the mold cavity to form an injection molding frame, and then the injection molding box is used to perform injection molding operations into the mold cavity of the mold shell through the connecting pipe. The delivery pump circulates the coolant in the cooling box through the infusion pipe in the mold shell. The coolant flows in the cavity structure of the mold shell to cool the injection molded part. After the injection molded part is cooled and formed, the bidirectional screw rod is rotated to drive the lower template and the upper template to move away from each other, which is convenient for taking the injection molded part. This effectively solves the problem of inconvenient demoulding after the injection molding is completed in the prior art. In general, demoulding is performed manually, which is easy to be burned. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an injection molding device for producing eyeglass frames proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the mold shell structure of an injection molding device for producing eyeglass frames proposed by the utility model;

[0017] Figure 3 The utility model discloses a schematic diagram of the upper mold plate structure of an injection molding device for producing eyeglass frames.

[0018] In the figure: 1. bottom plate; 2. support frame; 3. bidirectional screw rod; 4. sliding rod; 5. lower template; 6. upper template; 7. round block; 8. fixing pipe; 9. mold shell; 10. cooling box; 11. infusion tube; 12. injection molding box; 13. connecting pipe. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Example:

[0021] Reference Figure 1-3 , an injection molding device for producing eyeglass frames, comprising a bottom plate 1, support frames 2 are fixed at both ends of the top of the bottom plate 1, a lower template 5 is arranged between the two support frames 2, an upper template 6 is arranged above the lower template 5, a mold shell 9 is arranged between the upper template 6 and the lower template 5, a cooling box 10 placed on the top of the bottom plate 1 is arranged below the mold shell 9, and infusion tubes 11 are plugged and fixed at both ends of the top of the cooling box 10 and the bottom of the mold shell 9, an injection molding box 12 is connected to the top of the two support frames 2, and a connecting pipe 13 is connected between the injection molding box 12 and the upper template 6;

[0022] The inner walls at both ends of one of the support frames 2 are rotatably connected with a bidirectional screw rod 3, the top of the bidirectional screw rod 3 is connected with a servo motor installed on the top of the support frame 2, and the servo motor drives the bidirectional screw rod 3 to rotate, and the inner walls at both ends of the other support frame 2 are fixed with a slide bar 4, one end of the lower template 5 and the upper template 6 are plugged and slid with the slide bar 4, and the other end of the lower template 5 and the upper template 6 are screwed with the bidirectional screw rod 3, and the lower template 5 and the upper template 6 slide along the slide bar 4, and the rotating bidirectional screw rod 3 drives the screwed lower template 5 and the upper template 6 to move closer to or away from each other;

[0023] Round blocks 7 are fixed at both ends of the bottom of the upper template 6, and a fixed tube 8 that runs through the bottom of the upper template 6 is fixed on the top of the upper template 6. The fixed tube 8 is plugged into the connecting tube 13. After the upper template 6 is fitted with the mold shell 9, injection molding is performed to the mold shell 9 through the fixed tube 8. The mold shell 9 is a cavity structure, and a mold cavity is opened on the top of the mold shell 9. The coolant flows in the cavity structure of the mold shell 9 to cool the injection molded part. A refrigerator is installed at one end of the cooling box 10, and an infusion pump is installed in the cooling box 10. The water outlet of the infusion pump is plugged into one of the infusion tubes 11. The coolant in the cooling box 10 is circulated in the mold shell 9 through the infusion tube by the delivery pump, and the coolant in the cooling box 10 is cooled by the refrigerator.

[0024] Working principle:

[0025] During operation, the bidirectional screw 3 is driven by the servo motor to rotate, and the lower template 5 and the upper template 6 slide along the slide bar 4. The rotating bidirectional screw 3 drives the threaded lower template 5 and the upper template 6 to fit with the mold shell 9 respectively, so that the round block 7 is inserted into the mold cavity to form an injection molding frame, and then the injection molding box 12 is used to perform injection molding operations into the mold cavity of the mold shell 9 through the connecting pipe 13. The coolant in the cooling box 10 is circulated in the mold shell 9 through the infusion pipe 11 by the delivery pump. The coolant flows in the cavity structure of the mold shell 9 to cool the injection molded part. After the injection molded part is cooled and formed, the bidirectional screw 3 rotates to drive the lower template 5 and the upper template 6 away from each other, so that the injection molded part can be taken out conveniently.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An injection molding device for producing eyeglass frames, comprising a base plate (1), characterized in that: Support frames (2) are fixed at both ends of the top of the base plate (1), and a lower template (5) is arranged between the two support frames (2); an upper template (6) is arranged above the lower template (5), and a mold shell (9) is arranged between the upper template (6) and the lower template (5); a cooling box (10) placed on the top of the base plate (1) is arranged below the mold shell (9), and infusion tubes (11) are plugged and fixed at both ends of the top of the cooling box (10) and the two ends of the bottom of the mold shell (9); the tops of the two support frames (2) are connected to injection molding boxes (12), and a connecting tube (13) is connected between the injection molding box (12) and the upper template (6).

2. The injection molding equipment for producing eyeglass frames according to claim 1, characterized in that: The inner walls at both ends of one of the support frames (2) are rotatably connected to a bidirectional screw rod (3), and the top end of the bidirectional screw rod (3) is connected to a servo motor installed on the top of the support frame (2).

3. The injection molding equipment for producing eyeglass frames according to claim 2, characterized in that: Sliding rods (4) are fixed to the inner walls at both ends of the other support frame (2), and one end of the lower template (5) and the upper template (6) are plugged and slidably connected to the sliding rods (4), and the other ends of the lower template (5) and the upper template (6) are screwed to the bidirectional screw rod (3).

4. The injection molding equipment for producing eyeglass frames according to claim 1, characterized in that: Round blocks (7) are fixed at both ends of the bottom of the upper template (6), and a fixed tube (8) penetrating the bottom of the upper template (6) is plugged and fixed to the top of the upper template (6), and the fixed tube (8) is plugged into the connecting tube (13).

5. The injection molding equipment for producing eyeglass frames according to claim 1, characterized in that: The mold shell (9) is a hollow structure, and a mold cavity is opened on the top of the mold shell (9).

6. The injection molding equipment for producing eyeglass frames according to claim 1, characterized in that: A refrigerator is installed at one end of the cooling box (10), and an infusion pump is installed in the cooling box (10), and the water outlet of the infusion pump is plugged into one of the infusion tubes (11).

Images