Spectacle frame body injection molding mold

Abstract

The invention relates to the technical field of injection molds, in particular to a glasses frame body injection molding mold which comprises a mounting plate, an inner cavity of the mounting plate is connected with a base plate through a bearing, the top of the base plate is fixedly connected with a lower mold and a first electric push rod, and the top of the first electric push rod is fixedly connected with a push rod mechanism. A cooling shell is welded to the outer surface of the lower mold, plastic hoses communicate with the front side and the rear side of the left side of the cooling shell correspondingly, and the rear side of the base plate rotating rod penetrates into an inner cavity in the rear side of the mounting plate and is fixedly sleeved with a transmission toothed plate. A second electric push rod pushes a rack to move leftwards to drive a base plate to rotate clockwise, a first electric push rod pushes a vertical rod to move upwards to push a formed glasses frame body to leave an inner cavity of a lower mold, the glasses frame body falls into a material receiving plate under the action of gravity to be collected, in this way, automatic discharging can be achieved, and the labor intensity of workers is greatly relieved.

Description

Technical Field

[0001] The invention relates to the technical field of injection moulds, in particular to an injection moulding mould for a glasses frame. Background Art

[0002] An injection mold is a tool used for plastic injection molding. It is mainly used to manufacture plastic products of various shapes and sizes. The molten plastic is injected into the cavity of the mold, and then solidified by cooling to finally obtain the desired product. It is the main equipment for producing eyeglass frames.

[0003] After searching, the announcement number is CN217597712U, and the name is a double-layer eyeglass frame injection mold kit, which includes a lower mold, a first upper mold and a second upper mold; a first injection cavity for injecting a first layer of the eyeglass frame is formed between the lower mold and the first upper mold. Through research and analysis, it is found that although the injection molding production efficiency of the double-layer eyeglass frame can be improved, the following defects still exist to a certain extent.

[0004] For example, it does not have the function of automatic unloading. After the above-mentioned injection mold is demolded, personnel still need to manually take out the material. The degree of automation is low, which increases the labor intensity of personnel. At the same time, the lower mold cannot be quickly cooled, which will increase the cooling and molding time of the product, thereby reducing the production efficiency of the product. In order to solve the above technical problems, we have designed an injection molding mold for eyeglass frames. Summary of the invention

[0005] The purpose of the present invention is to provide an eyeglass frame injection molding mold with the function of automatic unloading, a higher degree of automation, reduced labor intensity of personnel, the ability to quickly dissipate heat, shorten the cooling and shaping time of injection molded products, and improve production efficiency. It solves the problems of being unable to perform automatic unloading, a low degree of automation, increased labor intensity of personnel, and a long cooling and shaping time of injection molded products, which affects production efficiency.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an injection molding mold for an eyeglass frame, comprising a mounting plate, the inner cavity of the mounting plate is connected to a base plate through a bearing, the top of the base plate is respectively fixedly connected to a lower mold and a first electric push rod, the top of the first electric push rod is fixedly connected to a push rod mechanism, a cooling shell is welded to the outer surface of the lower mold, the front and rear sides of the left side of the cooling shell are connected to a plastic hose, the rear side of the base plate rotating rod penetrates into the inner cavity of the rear side of the mounting plate and is fixedly sleeved with a transmission gear plate, the rear side of the bottom of the mounting plate is connected to a second electric push rod by bolts, the output end of the second electric push rod is fixedly connected to a rack, the left side of the top of the mounting plate is fixedly connected to a liquid storage tank, the rear side of the liquid storage tank is connected to a heat exchanger, the right side of the liquid storage tank is connected to a circulating pump, and the rear side of the top of the mounting plate is fixedly connected to an upper mold mechanism.

[0007] Preferably, the push rod mechanism comprises a mounting base, the four corners of the top of the mounting base are fixedly connected with vertical rods, and the top of the vertical rods penetrates into the inner cavity of the lower mold and is fixedly connected with the push rod body.

[0008] Preferably, a mounting opening is provided on the right side of the top of the mounting plate, a material receiving plate is fixedly connected to the right side of the inner cavity of the mounting opening, and a cooling fan is connected to both the front and rear sides of the material receiving plate by bolts.

[0009] Preferably, both the front and rear sides of the rack are slidably sleeved with a limiting sliding shell, and the top of the limiting sliding shell is fixedly connected to the mounting plate.

[0010] Preferably, a limiting transverse plate is welded to the left side of the bottom of the mounting plate, and the top of the rack is meshingly connected with the transmission toothed plate.

[0011] Preferably, the upper mold mechanism comprises a fixing frame, the front side of the top of the fixing frame is penetrated and fixedly connected with an electric hydraulic push rod, and the bottom of the electric hydraulic push rod is connected with the upper mold by bolts.

[0012] Preferably, the right side of the circulation pump is connected to the plastic hose on the front side, and the right side of the heat exchanger is connected to the plastic hose on the rear side.

[0013] Preferably, the top of the liquid storage tank is connected to a liquid injection hopper, and the bottom of the left side of the liquid storage tank is threadedly connected to a sealing plug.

[0014] Preferably, a through opening is provided on the rear side of the top of the mounting plate, a cooling groove is provided on the outer surface of the lower mold, and push holes are provided on both the front and rear sides of the bottom of the inner cavity of the lower mold.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The molten plastic is injected into the lower mold, and the circulating pump transports the coolant in the liquid storage tank to the cooling shell. The coolant quickly dissipates the heat of the lower mold, and finally the coolant takes the heat out through the plastic hose on the rear side. This can shorten the cooling and molding time of the product in the lower mold and improve the injection molding production efficiency.

[0017] 2. The second electric push rod pushes the rack to the left to drive the base plate to rotate clockwise. The first electric push rod pushes the vertical rod upward to push the formed eyeglass frame out of the inner cavity of the lower mold. Under the action of gravity, the eyeglass frame falls into the receiving plate for collection. This can automatically unload the material, greatly reducing the labor intensity of the personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an axonometric view of the structure of the present invention;

[0019] Figure 2 is a rear cross-sectional isometric view of the mounting plate of the present invention;

[0020] Figure 3 It is a front and side sectional isometric view of the cooling shell of the present invention;

[0021] Figure 4 It is a sectional isometric view of the lower mold of the present invention;

[0022] Figure 5 It is a rear view and top view of the partial structure of the present invention.

[0023] In the figure: 1. mounting plate; 2. base plate; 3. plastic hose; 4. circulating pump; 5. liquid storage tank; 6. liquid injection hopper; 7. heat exchanger; 8. upper mold; 9. electric hydraulic push rod; 10. fixing frame; 11. lower mold; 12. cooling shell; 13. cooling fan; 14. receiving plate; 15. upper mold mechanism; 16. second electric push rod; 17. transmission gear plate; 18. rack; 19. limit sliding shell; 20. limit horizontal plate; 21. push rod mechanism; 22. first electric push rod; 23. mounting base; 24. vertical rod; 25. cooling trough; 26. push rod body; 27. sealing plug. DETAILED DESCRIPTION

[0024] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation methods and the accompanying drawings.

[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying 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.

[0026] See also Figure 1-Figure 5, an eyeglass frame injection molding mold, comprising a mounting plate 1, the inner cavity of the mounting plate 1 is connected to a base plate 2 through a bearing, the top of the base plate 2 is respectively fixedly connected to a lower mold 11 and a first electric push rod 22, the top of the first electric push rod 22 is fixedly connected to a push rod mechanism 21, a cooling shell 12 is welded to the outer surface of the lower mold 11, and the front and rear sides of the left side of the cooling shell 12 are both connected with a plastic hose 3, the rear side of the base plate 2 rotating rod passes through the inner cavity of the rear side of the mounting plate 1 and is fixedly sleeved with a transmission gear plate 17, the rear side of the bottom of the mounting plate 1 is connected to a second electric push rod 16 by bolts, and the output end of the second electric push rod 16 is fixedly connected to a rack 18, the left side of the top of the mounting plate 1 is fixedly connected to a liquid storage tank 5, and the rear side of the liquid storage tank 5 is connected to a heat exchanger 7. By setting the heat exchanger 7, the heated coolant can be quickly cooled to ensure the cooling effect on the lower mold 11, the right side of the liquid storage tank 5 is connected to a circulating pump 4, and the rear side of the top of the mounting plate 1 is fixedly connected to an upper mold mechanism 15;

[0027] See also Figure 4 The push rod mechanism 21 includes a mounting base 23, and the four corners of the top of the mounting base 23 are fixedly connected to vertical rods 24, and the top of the vertical rod 24 penetrates the inner cavity of the lower mold 11 and is fixedly connected to a push rod body 26;

[0028] See also Figure 1 A mounting opening is provided on the right side of the top of the mounting plate 1, a material receiving plate 14 is fixedly connected to the right side of the inner cavity of the mounting opening, and a cooling fan 13 is connected to the front and rear sides of the material receiving plate 14 by bolts. By providing the cooling fan 13, the plastic product that has just been processed can be quickly cooled;

[0029] See also Figure 2 , both the front and rear sides of the rack 18 are slidably sleeved with a limit sliding shell 19, and by setting the limit sliding shell 19, the rack 18 can be guided and limited to avoid deviation, and the top of the limit sliding shell 19 is fixedly connected to the mounting plate 1;

[0030] See also Figure 2 A limiting horizontal plate 20 is welded on the left side of the bottom of the mounting plate 1. By setting the limiting horizontal plate 20, the left side of the base plate 2 can be limited to avoid rotation during the injection molding process. The top of the rack 18 is meshed and connected with the transmission gear plate 17;

[0031] See also Figure 1 The upper mold mechanism 15 includes a fixing frame 10, the front side of the top of the fixing frame 10 is penetrated and fixedly connected with an electric hydraulic push rod 9, and the bottom of the electric hydraulic push rod 9 is connected with an upper mold 8 by bolts;

[0032] See also Figure 5The right side of the circulation pump 4 is connected to the plastic hose 3 on the front side, and the right side of the heat exchanger 7 is connected to the plastic hose 3 on the rear side. By providing the plastic hose 3, the lower mold 11 can be easily rotated;

[0033] See also Figure 5 The top of the liquid storage tank 5 is connected to a liquid injection hopper 6, and the bottom of the left side of the liquid storage tank 5 is threadedly connected to a sealing plug 27. By providing the liquid injection hopper 6 and the sealing plug 27, the coolant in the liquid storage tank 5 can be easily replaced;

[0034] See also Figure 4 and Figure 5 A through opening is provided on the rear side of the top of the mounting plate 1. By providing the through opening, the transmission gear plate 17 can be easily installed. A cooling groove 25 is provided on the outer surface of the lower mold 11. Push holes are provided on the front and rear sides of the bottom of the inner cavity of the lower mold 11. By providing the push holes, the vertical rod 24 can be easily inserted into the lower mold 11.

[0035] When in use, connect the device to an external power supply and controller, connect the injection pipe on the top of the upper mold 8 to the external injection molding feeding pipe, and the electric hydraulic push rod 9 pushes the upper mold 8 to move down and cooperate with the lower mold 11, and the molten plastic is injected into the lower mold 11. At this time, the circulation pump 4 is controlled to work to transport the coolant in the liquid storage tank 5 to the cooling shell 12. The coolant quickly dissipates heat from the lower mold 11, and finally the coolant takes the heat out through the plastic hose 3 on the rear side. This can shorten the cooling and molding time of the product in the lower mold 11 and improve the injection molding production efficiency. After the injection molding is completed, the electric hydraulic push rod 9 is controlled to drive the upper mold 8 to rise and reset, and then the second The electric push rod 16 pushes the rack 18 to move leftward, thereby driving the base plate 2 to rotate clockwise through the meshing connection with the transmission tooth plate 17. At the same time, the first electric push rod 22 is controlled to push the vertical rod 24 to move upward, and the push rod body 26 on the top pushes the formed eyeglass frame to leave the inner cavity of the lower mold 11. When the lower mold 11 turns to the right to the maximum angle, the eyeglass frame falls into the receiving plate 14 for collection under the action of gravity. Subsequently, the second electric push rod 16 and the first electric push rod 22 are controlled to retract to respectively drive the base plate 2 and the push rod mechanism 21 to reset, so that unloading can be carried out automatically, which greatly reduces the labor intensity of personnel.

[0036] To sum up: the injection molding mold of the eyeglass frame, through the coordinated use of the mounting plate 1, the base plate 2, the circulating pump 4, the liquid storage tank 5, the lower mold 11, the cooling shell 12, the receiving plate 14, the upper mold mechanism 15, the second electric push rod 16, the transmission gear plate 17, the rack 18, the push rod mechanism 21 and the first electric push rod 22, solves the problems of being unable to perform automatic unloading, the low degree of automation, the increased labor intensity of personnel, the long cooling and shaping time of the injection molded products, and the impact on production efficiency.

[0037] The above are only preferred specific implementation modes 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 according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An injection molding mold for an eyeglass frame, comprising a mounting plate (1), characterized in that: The inner cavity of the mounting plate (1) is connected to a base plate (2) via a bearing, the top of the base plate (2) is respectively fixedly connected to a lower mold (11) and a first electric push rod (22), the top of the first electric push rod (22) is fixedly connected to a push rod mechanism (21), a cooling shell (12) is welded to the outer surface of the lower mold (11), the front and rear sides of the left side of the cooling shell (12) are both connected to a plastic hose (3), the rear side of the rotating rod of the base plate (2) penetrates to the inner side of the rear side of the mounting plate (1), and the cooling shell (12) is connected to the inner side of the lower mold (11). The cavity is fixedly sleeved with a transmission toothed plate (17); the rear side of the bottom of the mounting plate (1) is connected to a second electric push rod (16) by bolts; the output end of the second electric push rod (16) is fixedly connected to a rack (18); the left side of the top of the mounting plate (1) is fixedly connected to a liquid storage tank (5); the rear side of the liquid storage tank (5) is connected to a heat exchanger (7); the right side of the liquid storage tank (5) is connected to a circulation pump (4); and the rear side of the top of the mounting plate (1) is fixedly connected to an upper mold mechanism (15).

2. The eyeglass frame injection molding mold according to claim 1, characterized in that: The push rod mechanism (21) comprises a mounting base (23), the four corners of the top of the mounting base (23) are fixedly connected to vertical rods (24), the top of the vertical rod (24) penetrates the inner cavity of the lower mold (11) and is fixedly connected to a push rod body (26).

3. The eyeglass frame injection molding mold according to claim 1, characterized in that: A mounting opening is provided on the right side of the top of the mounting plate (1), a material receiving plate (14) is fixedly connected to the right side of the inner cavity of the mounting opening, and a cooling fan (13) is connected to both the front and rear sides of the material receiving plate (14) via bolts.

4. The eyeglass frame injection molding mold according to claim 1, characterized in that: A limiting sliding shell (19) is slidably sleeved on both the front and rear sides of the rack (18), and the top of the limiting sliding shell (19) is fixedly connected to the mounting plate (1).

5. The eyeglass frame injection molding mold according to claim 1, characterized in that: A limiting transverse plate (20) is welded to the left side of the bottom of the mounting plate (1), and the top of the rack (18) is meshedly connected with the transmission toothed plate (17).

6. The eyeglass frame injection molding mold according to claim 1, characterized in that: The upper mold mechanism (15) comprises a fixed frame (10), the front side of the top of the fixed frame (10) is penetrated and fixedly connected with an electric hydraulic push rod (9), and the bottom of the electric hydraulic push rod (9) is connected with the upper mold (8) via bolts.

7. The eyeglass frame injection molding mold according to claim 1, characterized in that: The right side of the circulation pump (4) is connected to the plastic hose (3) on the front side, and the right side of the heat exchanger (7) is connected to the plastic hose (3) on the rear side.

8. The eyeglass frame injection molding mold according to claim 1, characterized in that: The top of the liquid storage box (5) is connected to a liquid injection hopper (6), and the bottom of the left side of the liquid storage box (5) is threadedly connected to a sealing plug (27).

9. The eyeglass frame injection molding mold according to claim 1, characterized in that: A through opening is provided on the rear side of the top of the mounting plate (1), a cooling groove (25) is provided on the outer surface of the lower mold (11), and push holes are provided on both the front and rear sides of the bottom of the inner cavity of the lower mold (11).

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