Closed lens hot pressing device

Abstract

The utility model discloses a closed lens hot-pressing device which comprises a hot-pressing workbench and a hydraulic assembly arranged on the hot-pressing workbench, a positioning sliding groove is formed in the top of the hot-pressing workbench, and a first positioning sliding plate and a second positioning sliding plate which are driven by a servo motor are arranged in the positioning sliding groove; and heating rings are installed in the middle positions of the tops of the first positioning sliding plate and the second positioning sliding plate correspondingly, lower molds are arranged in the heating rings, and electric heating pipes are spirally installed in the heating rings. When one lower die is matched with the upper die, the other lower die can heat and place blanks, after die casting is completed, position conversion can be rapidly achieved, the two operations do not affect each other, an operation neutral period does not exist, operation time can be effectively saved, and therefore the hot pressing efficiency of the lens is improved.

Description

Technical Field

[0001] This utility model relates to the field of lens manufacturing technology, specifically a closed lens hot pressing device. Background Technology

[0002] A lens is an optical element that uses the principle of light refraction to change the direction of light propagation.

[0003] A closed-type lens hot-pressing device, disclosed in Chinese patent application number CN202323661347.4, describes a heating mechanism comprising a sliding base, a heating assembly and a driving assembly above the sliding base. The heating assembly includes a rotating bracket, a rotating plate, a heating box, and a heating plate. The heating plate is connected to the heating box via a heat-conducting copper pipe. The driving assembly includes a driving cylinder and a rotating arm. The driving cylinder is fixedly mounted at the end of the sliding base. One end of the rotating arm is fixedly connected to the piston rod of the driving cylinder, and the other end is fixedly connected to the end of the rotating plate. This invention preheats the die-casting mold using the heating assembly, avoiding a large temperature difference between the die-casting mold and the blank, thereby improving product quality and yield.

[0004] Through a search of existing technologies such as those mentioned above, we found that these technologies still have certain shortcomings in their use:

[0005] During use, the lower mold needs to be heated by a heating mechanism. Each time a product is hot-pressed, the heating mechanism needs to be removed from the lower mold. After hot pressing is completed, the heating mechanism needs to be moved back onto the lower mold. The operation is quite cumbersome. Furthermore, the product that has been die-cast on the mold needs to be removed before the lower mold can be heated and the blank can be placed. During this process, a lot of time is wasted waiting for the lower mold to heat up, which reduces work efficiency to some extent and results in low production efficiency. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a closed lens hot pressing device, comprising a hot pressing worktable and a hydraulic assembly disposed on the hot pressing worktable. A positioning groove is provided on the top of the hot pressing worktable, and positioning slide plate one and positioning slide plate two, driven by a servo motor, are disposed within the positioning groove. A heating ring is installed at the center of the top of both positioning slide plate one and positioning slide plate two, and a lower mold is disposed within the heating ring. An electric heating tube is spirally installed inside the heating ring. A power connector is installed on the left side of positioning slide plate one and the right side of positioning slide plate two, and the power connector is electrically connected to the electric heating tube via a wire. A power socket for inserting the power connector is installed on the left side and the right side of the inner wall of the positioning groove.

[0008] As a further embodiment of this utility model: the positioning slide plate one and the positioning slide plate two are fixed together by a connecting rod, and guide sliders are fixed on both the front and rear sides of the positioning slide plate one and the positioning slide plate two. The guide sliders are placed in the guide grooves opened on the inner wall of the positioning slide groove.

[0009] As a further embodiment of this utility model: a support arm is also installed on one side of the top of the hot press workbench, the hydraulic component is installed on the support arm, the hydraulic component includes a hydraulic cylinder and an upper mold, the hydraulic cylinder is installed on the top of the support arm, the power output shaft of the hydraulic cylinder moves through the support arm and is installed on the upper mold, and the bottom of the upper mold is directly opposite the center position of the positioning slide groove.

[0010] As a further embodiment of this utility model: both sides of the upper mold are fixed with fixing plates, the top of the fixing plates is fixed with a limiting slide rod, and the top of the limiting slide rod extends through the support arm.

[0011] As a further embodiment of this utility model: the positioning slide plate one and the positioning slide plate two are the same size. When the left side of the positioning slide plate one is attached to the left side of the inner wall of the positioning groove, the lower mold and the upper mold on the positioning slide plate two correspond to each other. When the right side of the positioning slide plate two is attached to the right side of the inner wall of the positioning groove, the lower mold and the upper mold on the positioning slide plate one correspond to each other.

[0012] As a further embodiment of this utility model: the servo motor is installed on one side of the hot press worktable, the power output shaft of the servo motor moves through the hot press worktable and is fixed with a lead screw, and the end of the lead screw away from the servo motor passes through the positioning slide plate two in sequence and is rotatably connected to the inner wall of the positioning slide groove on one side together with the positioning slide plate one.

[0013] As a further embodiment of this utility model: the power socket, hydraulic cylinder and servo motor are respectively connected to the mains power through wires.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] I. In this application, by setting up a hot pressing worktable, positioning slide, positioning slide one, positioning slide two, and servo motor, the lower mold can be continuously transferred to the lower part of the upper mold through positioning slide one and positioning slide two, thereby completing the die casting of the lens. When one of the lower molds is cooperating with the upper mold, the other lower mold can be heated and the blank can be placed. After the die casting is completed, the position can be quickly changed. The two operations do not affect each other and there is no downtime. This can effectively save operation time, thereby improving the hot pressing efficiency of the lens and speeding up the production of the product.

[0016] Second, in this application, positioning slide plate one and positioning slide plate two can move simultaneously, which is simple to operate and has a high degree of automation. When positioning slide plate one or positioning slide plate two contacts the inner wall of the left or right side of the inner wall of the positioning slide groove, the positioning of the lower mold and the upper mold is completed, and the power plug is immediately inserted into the corresponding power socket, which can quickly start and heat the corresponding heating ring and heat the lower mold. This method is more convenient to operate and has higher work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the positioning skateboard of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the upper mold of this utility model;

[0020] Figure 4 This is a side cross-sectional view of the positioning slide plate and heating ring of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the positioning slide plate of this utility model when it moves to the left side of the inner wall of the positioning groove.

[0022] The reference numerals and names in the figure are as follows:

[0023] 1. Hot press worktable; 2. Support arm; 3. Hydraulic cylinder; 4. Upper mold; 5. Positioning slide; 6. Positioning slide plate one; 7. Positioning slide plate two; 8. Servo motor; 801. Lead screw; 9. Heating ring; 901. Electric heating tube; 10. Lower mold; 11. Power plug; 12. Power socket; 13. Guide slide; 14. Connecting rod; 15. Guide slider; 16. Fixing plate; 17. Limiting slide rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 A closed lens hot pressing device includes a hot pressing worktable 1 and a hydraulic assembly mounted on the hot pressing worktable 1. A positioning groove 5 is provided on the top of the hot pressing worktable 1. Positioning slide plate 1 (6) and positioning slide plate 2 (7), driven by a servo motor 8, are installed in the positioning groove 5. The bottoms of positioning slide plate 1 (6) and positioning slide plate 2 (7) are attached to the bottom of the positioning groove 5 to form a sliding connection, ensuring stability. A heating ring 9, made of copper, is installed at the center of the top of both positioning slide plate 1 (6) and positioning slide plate 2 (7). A lower mold 10 is installed in the heating ring 9. An electric heating tube 901 is spirally installed inside the heating ring 9. A power connector 11 is installed on the left side of positioning slide plate 1 (6) and the right side of positioning slide plate 2 (7). The power connector 11 is electrically connected to the electric heating tube 901 via a wire. Power sockets 12 for inserting the power connector 11 are installed on the left and right sides of the inner wall of the positioning groove 5. The power sockets 12, the hydraulic cylinder 3, and the servo motor 8 are connected to mains power via wires.

[0026] Please see Figure 1 and Figure 2 In this embodiment, positioning slide 6 and positioning slide 7 are fixed together by connecting rod 14. Guide sliders 15 are fixed on both the front and rear sides of positioning slide 6 and positioning slide 7. The guide sliders 15 are placed in the guide grooves 13 opened on the inner wall of the positioning groove 5.

[0027] Specifically, positioning slide 6 and positioning slide 7 are fixed together by connecting rod 14, which ensures that the distance between them is not inconvenient and provides them with good relative stability. By setting guide slider 15 and guide groove 13, the guiding performance of positioning slide 6 and positioning slide 7 during movement can be improved, ensuring that they move stably along the set trajectory.

[0028] Please see Figure 1 and Figure 3In this embodiment, a support arm 2 is also installed on one side of the top of the hot press workbench 1. The hydraulic assembly is installed on the support arm 2. The hydraulic assembly includes a hydraulic cylinder 3 and an upper mold 4. The hydraulic cylinder 3 is installed on the top of the support arm 2. The power output shaft of the hydraulic cylinder 3 moves through the support arm 2 and is installed on the upper mold 4. The bottom of the upper mold 4 is directly opposite the center position of the positioning slide groove 5. Fixing plates 16 are fixed on both sides of the upper mold 4. The top of the fixing plate 16 is fixed with a limiting slide rod 17. The top of the limiting slide rod 17 moves through the support arm 2.

[0029] Specifically, the support arm 2 is used to support the hydraulic components and ensure the stability of the hydraulic components during operation. The upper mold 4 has a fixed plate 16 and a limiting slide bar 17, which ensures that the upper mold 4 is in vertical movement during operation, so as to better complete the closure with the lower mold 10 and complete the hot pressing of the blank.

[0030] Please see Figure 1 and Figure 5 In this embodiment, the positioning slide plate 1 6 and the positioning slide plate 2 7 are the same size. When the left side of the positioning slide plate 1 6 is attached to the left side of the inner wall of the positioning groove 5, the lower mold 10 on the positioning slide plate 2 7 corresponds to the upper mold 4. When the right side of the positioning slide plate 2 7 is attached to the right side of the inner wall of the positioning groove 5, the lower mold 10 on the positioning slide plate 1 6 corresponds to the upper mold 4.

[0031] Specifically, since positioning slide 6 and positioning slide 7 are the same size, they occupy the same space in positioning groove 5. The internal space of positioning groove 5 can be understood as five chambers of the same size (e.g., Figure 1 and Figure 5 As shown, the left side of the positioning slide plate 6 is one part, the cavity occupied by positioning slide plate 6 is one part, the cavity on the right side of positioning slide plate 6 is one part, the cavity occupied by positioning slide plate 7 is one part, and the cavity on the right side of positioning slide plate 7 is one part. That is to say, when positioning slide plate 6 moves to the left side of the inner wall of positioning groove 5, positioning slide plate 7 is exactly located in the middle of positioning groove 5 and the lower mold 10 on it corresponds to the upper mold 4. Conversely, when positioning slide plate 7 moves to the right side of the inner wall of positioning groove 5, positioning slide plate 6 is exactly located in the middle of positioning groove 5 and the lower mold 10 on it corresponds to the upper mold 4. This setting and movement method can directly complete the positioning of the upper and lower molds.

[0032] Please see Figure 1 In this embodiment, the servo motor 8 is installed on one side of the hot press table 1. The power output shaft of the servo motor 8 moves through the hot press table 1 and is fixed with a lead screw 801. The end of the lead screw 801 away from the servo motor 8 passes through the positioning slide plate 2 7 and the positioning slide plate 1 6 in sequence and is rotatably connected to the inner wall of one side of the positioning slide groove 5.

[0033] Specifically, after the servo motor 8 is started, it can drive the lead screw 801 to rotate, and the rotation of the lead screw 801 can drive the positioning slide plate 2 7 and the positioning slide plate 1 6 to move back and forth in the positioning slide groove 5.

[0034] In use: The operator can first start the servo motor 8. The power output shaft of the servo motor 8 drives the lead screw 801 to rotate, which in turn causes the positioning slide plate 1 6 and the positioning slide plate 2 7 to slide in the positioning groove 5, so that the left side of the positioning slide plate 1 6 is in contact with the left side of the inner wall of the positioning groove 5 (e.g., Figure 5 As shown), after bonding, the power connector 11 on the side of the positioning slide plate 6 is inserted into the power connector 12 on the left side of the inner wall of the positioning slide groove 5, so that the electric heating tube 901 is energized to heat the heating ring 9. After heating for a certain period of time, the blank to be hot-pressed can be placed on the lower mold 10 on the positioning slide plate 6. Then, the servo motor 8 is started to rotate in the opposite direction, thereby driving the positioning slide plate 6 and the positioning slide plate 7 to move to the right side of the positioning slide groove 5 until the right side of the positioning slide plate 7 is bonded to the right side of the positioning slide groove 5, so that the power connector 11 on the positioning slide plate 7 is inserted into the power connector 12 on the right side of the inner wall of the positioning slide groove 5, and then the upper mold 4 on the positioning slide plate 7 is heated.

[0035] Because the lower mold 10 on positioning slide 2 7 is being heated, positioning slide 1 6 will move its lower mold 10 to below the upper mold 4. At this time, hydraulic cylinder 3 can be activated to push the upper mold 4 down and complete the hot pressing of the blank on the lower mold 10 on positioning slide 1 6. During the hot pressing process of the blank on positioning slide 1 6, the lower mold 10 on positioning slide 2 7 is being heated. After the hot pressing of the blank on positioning slide 1 6 is completed, the next blank to be hot pressed can be placed on the lower mold 10 on positioning slide 2 7, and the servo motor 8 can be activated. The second positioning slide plate 7 and the first positioning slide plate 6 are moved to the left, and the first positioning slide plate 6 is brought into contact with the left side of the inner wall of the positioning slide groove 5 again. The lens that has been hot-pressed can then be removed. At this time, the lower mold 10 on the second positioning slide plate 7 comes to the bottom of the upper mold 4. At this time, the blank on the second positioning slide plate 7 can be hot-pressed. Since the power plug 11 on the first positioning slide plate 6 is reconnected to the power socket 12 on the left side of the inner wall of the positioning slide groove 5, the lower mold 10 on the first positioning slide plate 6 can be heated again. By repeating the above operation, the product can be hot-pressed efficiently.

[0036] In summary, positioning slide 6 and positioning slide 7 alternately transfer the lower mold 10 at their top to below the upper mold 4. When the lower mold 10 on positioning slide 6 is used in conjunction with the upper mold 4 for die casting, the lower mold 10 on positioning slide 7 can be heated. Conversely, when the lower mold 10 on positioning slide 7 is used in conjunction with the upper mold 4 for die casting, the lower mold 10 on positioning slide 6 can be heated. This method can effectively avoid downtime, significantly improve production efficiency, and is simpler to operate and more practical.

[0037] It should be noted that an air duct can also be set in the upper mold 4 to improve the quality of hot pressing of the product. This method has been reflected in the published patent application number CN202323661347.4, so it will not be described again in this application.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A closed-type lens hot pressing device, comprising a hot pressing worktable (1) and a hydraulic assembly disposed on the hot pressing worktable (1), characterized in that, The top of the hot press workbench (1) is provided with a positioning slide groove (5), and the positioning slide groove (5) is provided with a positioning slide plate one (6) and a positioning slide plate two (7) driven by a servo motor (8). Heating rings (9) are installed at the top center of both positioning slide 1 (6) and positioning slide 2 (7). A lower mold (10) is provided in the heating ring (9). An electric heating tube (901) is installed in a spiral shape inside the heating ring (9). A power connector (11) is installed on the left side of positioning slide 1 (6) and the right side of positioning slide 2 (7). The power connector (11) is electrically connected to the electric heating tube (901) through a wire. The left and right sides of the inner wall of the positioning groove (5) are equipped with power sockets (12) for inserting the power plug (11).

2. The closed-type lens hot pressing device according to claim 1, characterized in that, The positioning slide plate one (6) and the positioning slide plate two (7) are fixed together by a connecting rod (14). The front and rear sides of the positioning slide plate one (6) and the positioning slide plate two (7) are fixed with guide sliders (15), and the guide sliders (15) are placed in the guide grooves (13) opened on the inner wall of the positioning groove (5).

3. The closed-type lens hot pressing device according to claim 1, characterized in that, A support arm (2) is also installed on one side of the top of the hot press workbench (1). The hydraulic assembly is installed on the support arm (2). The hydraulic assembly includes a hydraulic cylinder (3) and an upper mold (4). The hydraulic cylinder (3) is installed on the top of the support arm (2). The power output shaft of the hydraulic cylinder (3) moves through the support arm (2) and is mounted on the upper mold (4). The bottom of the upper mold (4) is directly opposite the center position of the positioning slide groove (5).

4. The closed-type lens hot pressing device according to claim 3, characterized in that, The upper mold (4) is fixed with a fixing plate (16) on both sides. The top of the fixing plate (16) is fixed with a limiting slide rod (17), and the top of the limiting slide rod (17) extends through the support arm (2).

5. The closed-type lens hot pressing device according to claim 1, characterized in that, The positioning slide plate one (6) and the positioning slide plate two (7) are the same size. When the left side of the positioning slide plate one (6) is attached to the left side of the inner wall of the positioning groove (5), the lower mold (10) on the positioning slide plate two (7) corresponds to the upper mold (4). When the right side of the positioning slide plate two (7) is attached to the right side of the inner wall of the positioning groove (5), the lower mold (10) on the positioning slide plate one (6) corresponds to the upper mold (4).

6. The closed-type lens hot pressing device according to claim 1, characterized in that, The servo motor (8) is installed on one side of the hot press table (1). The power output shaft of the servo motor (8) moves through the hot press table (1) and is fixed with a lead screw (801). The end of the lead screw (801) away from the servo motor (8) passes through the positioning slide plate two (7) and the positioning slide plate one (6) in sequence and is rotatably connected to the inner wall of the positioning slide groove (5) on one side.

7. The closed-type lens hot pressing device according to claim 1, characterized in that, The power socket (12), hydraulic cylinder (3) and servo motor (8) are respectively connected to the mains power through wires.

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