Combined sliding block structure special for in-mold decoration (IMD) mold

Abstract

The utility model provides a special combined slider structure for an IMD (in-mold decoration) mold, which comprises a guide block, a slider, a driving rod and a diaphragm pressing frame, a driving groove for the driving rod to move is arranged on the guide block and the slider in a penetrating manner, the diaphragm pressing frame is fixed in a machine body through a support plate, and the diaphragm pressing frame is rotatably arranged on the support plate through a second rotating shaft. The second rotating shaft is sleeved with a second bevel gear, the sliding block is fixedly connected with a rack, the guide block is rotationally connected with a first rotating shaft, and the first rotating shaft is sleeved with a driving gear meshed with the rack and a first bevel gear meshed with the second bevel gear. The combined sliding block structure special for the IMD mold can play a role in improving the production efficiency and stability of the IMD mold.

Description

Technical Field

[0001] The utility model relates to the technical field of IMD molds, and more specifically to a special combined slider structure for IMD molds. Background Art

[0002] IMD mold, or in-mold decoration technology mold, is a mold that places a diaphragm with a printed pattern into a metal mold, and then injects molding resin into the metal mold to bond it to the diaphragm, so that the printed pattern diaphragm and the resin form a whole and solidify into a finished product. This technology can give the product surface a rich pattern, color and texture, and it also has the advantages of being corrosion-resistant, wear-resistant, non-shedding, brightly colored, color patterns that can be replaced at any time, and excellent surface decoration effect. In existing IMD injection molds, because the IMD diaphragm needs to be transported from the top side to the bottom side, the top and bottom sides of the mold cannot be designed with an undercut slider structure. The slider's inclined guide column is higher than the parting surface, which will interfere with the IMD diaphragm, so the undercut structure on the top and bottom sides of the IMD product is restricted from demolding.

[0003] In response to the above-mentioned problem, regarding the technical issue that the demolding of the undercut structure on the top and bottom sides of the IMD product in the existing IMD mold is restricted, after a lot of searching, it was found that the patent publication number CN219522945U is a special combined slider structure for IMD molds, which belongs to the field of IMD mold technology. The slider assembly of this device will not interfere with the diaphragm during operation, and the mold opening action is used to drive the drive rod to automatically disengage the product undercut. It has the advantages of stable and reliable structure and can meet customer demand for products.

[0004] However, the aforementioned IMD mold-specific combined slider structure still has some problems. For example, the self-locking performance between multiple slider groups is low, resulting in reduced overall stability. To address these issues, the present invention proposes a combined slider structure specifically for IMD molds. Utility Model Content

[0005] The utility model aims to solve the technical problems raised by the above-mentioned background technology and provides a special combined slider structure for IMD molds.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a combination slider structure dedicated to IMD molds, comprising a guide block, a slider, a drive rod and a diaphragm pressure frame, wherein the guide block and the slider are penetrated by a drive groove for the movement of the drive rod, the diaphragm pressure frame is fixed in the body by a support plate, the diaphragm pressure frame is rotatably arranged on the support plate via a second rotating shaft, a second bevel gear is sleeved on the second rotating shaft, a rack is fixedly connected to the slider, a first rotating shaft is rotatably connected to the guide block, the first rotating shaft is sleeved with a driving gear meshing with the rack, and a first bevel gear meshing with the second bevel gear.

[0007] A further preferred solution is that the diameter of the first bevel gear is larger than the diameter of the second bevel gear.

[0008] A further preferred solution is that a limit plate is fixedly connected to the second rotating shaft, and a movable groove for the limit plate to move is provided in the support plate.

[0009] A further preferred solution is that a limiting block is fixedly connected in the movable groove to limit the limiting plate.

[0010] A further preferred solution is that a tension spring is movably provided in the movable groove, and both ends of the tension spring are fixedly connected to the limit block and the limit plate respectively.

[0011] A further preferred solution is that a roller that is rotatably connected to the driving groove and is in contact with the driving rod.

[0012] Beneficial effects:

[0013] 1. By providing a first bevel gear, a second bevel gear, and a rack, and by cooperating with multiple sets of gears, the linear motion of the drive rod can be converted into the rotational motion of the diaphragm pressing frame, thereby meeting the requirements of the IMD mold production process, so that the diaphragm pressing frame automatically disengages the product from the underside. This structural design is compact and highly stable, which can improve the production efficiency and product quality of the IMD mold;

[0014] 2. The combination of the limit plate, movable groove, limit block, and tension spring plays an important role in the IMD mold-specific combined slider structure. By limiting the rotation range, providing buffering, and realizing the reset function, the stability, reliability, and accuracy of the structure are ensured.

[0015] 3. The roller is provided to greatly reduce the friction between the driving rod and the driving slot, thus avoiding loosening or jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 For this utility model Figure 1 Schematic diagram of the structure from another perspective.

[0018] Figure 3 It is a structural diagram of the movable groove, limit block and limit plate of the utility model.

[0019] Figure 4 This is a schematic structural diagram of the roller of the utility model.

[0020] Figure 1-4Middle: 1. Guide block; 2. Slider; 3. Drive rod; 4. Drive slot; 5. Rack; 6. First bevel gear; 7. Driving gear; 8. First rotating shaft; 9. Second bevel gear; 10. Second rotating shaft; 11. Support plate; 12. Diaphragm pressure frame; 13. Roller; 14. Limit plate; 15. Tension spring; 16. Movable slot; 17. Limit block. DETAILED DESCRIPTION

[0021] The following is a combination of the appended examples of the present invention Figure 1-Figure 4 , clearly and completely describe the technical solutions in the embodiments of the present utility model.

[0022] See also Figure 1-4 In an embodiment of the present invention, a combination slider 2 structure dedicated to an IMD mold includes a guide block 1, a slider 2, a drive rod 3 and a diaphragm pressure frame 12. A drive groove 4 for the drive rod 3 to move is provided on the guide block 1 and the slider 2. The diaphragm pressure frame 12 is fixed in the body through a support plate 11. The diaphragm pressure frame 12 is rotatably set on the support plate 11 through a second rotating shaft 10. A second bevel gear 9 is sleeved on the second rotating shaft 10. A rack 5 is fixedly connected to the slider 2. A first rotating shaft 8 is rotatably connected to the guide block 1. The first rotating shaft 8 is sleeved with a driving gear 7 meshing with the rack 5 and a first bevel gear 6 meshing with the second bevel gear 9.

[0023] Specifically, when the driving rod 3 moves in the driving groove 4 under the action of external power, the movement of the driving rod 3 drives the slider 2 to slide along the guide block 1, and the rack 5 on the slider 2 moves with the movement of the slider 2, and the rack 5 engages with the driving gear 7 on the first rotating shaft 8, so that the driving gear 7 rotates. The rotation of the driving gear 7 drives the first rotating shaft 8 to rotate, and the first bevel gear 6 on the first rotating shaft 8 also rotates accordingly. The first bevel gear 6 engages with the second bevel gear 9 on the second rotating shaft 10, thereby transmitting power to the second rotating shaft 10. The rotation of the second rotating shaft 10 drives the diaphragm pressure frame 12 to rotate around the second rotating shaft 10, so that the diaphragm pressure frame 12 automatically disengages the product upside down. Through this combined slider 2 structure, the linear motion of the driving rod 3 can be converted into the rotational motion of the diaphragm pressure frame 12, thereby meeting the IMD mold's production process so that the diaphragm pressure frame 12 automatically disengages the product upside down. This structural design is compact and has high transmission efficiency, which can improve the production efficiency and product quality of the IMD mold.

[0024] It should be noted that, in this embodiment, the installation and connection relationship of the guide block 1, slider 2, drive rod 3 and diaphragm pressure frame 12 can be referred to the patent document of patent announcement number CN219522945U, which is a patent document of a special combined slider 2 structure for an IMD mold. When the utility model is used to open the mold, the drive rod 3 can be driven to move upward by the mold opening action, thereby completing the sliding of the slider 2 on the guide block 1.

[0025] In the embodiment of the present utility model, Figure 1 and Figure 2 As shown, the diameter of the first bevel gear 6 is larger than that of the second bevel gear 9. Specifically, since the diameter of the first bevel gear 6 is large and the diameter of the second bevel gear 9 is small, when the first bevel gear 6 acts as a driving wheel to drive the second bevel gear 9 to rotate, a deceleration effect will be generated, that is, the first bevel gear 6 rotates one circle, and the second bevel gear 9 will rotate multiple circles. The specific speed ratio depends on the diameter ratio of the two bevel gears, and can be adjusted according to actual requirements.

[0026] In the embodiment of the present utility model, Figure 3 As shown, a limit plate 14 is fixedly connected to the second rotating shaft 10, and a movable groove 16 is provided in the support plate 11 for the limit plate 14 to move. A limit block 17 for limiting the limit plate 14 is fixedly connected in the movable groove 16, and a tension spring 15 is movably provided in the movable groove 16. The two ends of the tension spring 15 are respectively fixedly connected to the limit block 17 and the limit plate 14. When the second rotating shaft 10 rotates under the transmission action of the first bevel gear 6 and the second bevel gear 9, the limit plate 14 is driven to rotate in the movable groove 16. When the limit plate 14 rotates to contact with the limit block 17, the limit block 17 prevents the limit plate 14 from continuing to rotate, thereby limiting the rotation range of the second rotating shaft 10. This limiting action can ensure that the diaphragm pressure frame 12 rotates within a specific angle range to avoid damage to the diaphragm or affecting other components of the IMD mold due to excessive rotation. During the rotation of the second rotating shaft 10, the limit plate 14 will generate a compressive or tensile force on the tension spring 15. The elastic deformation of 15 can absorb part of the energy, play a buffering role, and reduce the impact and vibration during the rotation process. When the diaphragm pressure frame 12 is impacted by external force or stops suddenly, the tension spring 15 can reduce the impact force by deformation, protecting the stability and reliability of the structure. When the external force disappears or the driving rod 3 moves in the opposite direction, the elastic force of the tension spring 15 will cause the limit plate 14 and the second rotating shaft 10 to return to the initial position. The contraction force of the tension spring 15 will pull the limit plate 14 to rotate in the opposite direction until it returns to the initial position. This reset function can ensure that the diaphragm pressure frame 12 can return to the correct initial position after each operation and be ready for the next operation. In summary, the combination of the limit plate 14, the movable groove 16, the limit block 17 and the tension spring 15 plays an important role in the structure of the IMD mold-specific combination slider 2. By limiting the rotation range, providing buffering and realizing the reset function, the stability, reliability and accuracy of the structure are guaranteed.

[0027] In the embodiment of the present utility model, Figure 4As shown, a roller 13 that fits with the drive rod 3 is rotatably connected in the drive groove 4. Specifically, the roller 13 is usually made of wear-resistant materials, such as alloy steel, nylon, etc., with high strength and wear resistance, and can maintain good performance during long-term use. The roller 13 can be rotatably connected to the inner wall of the drive groove 4 through a connecting piece such as a rotating shaft or an axle pin. This connection method allows the roller 13 to rotate freely under the action of the drive rod 3, reducing friction resistance and improving the smoothness of the transmission. The design of the rotational connection requires that the connection part has sufficient strength and precision to ensure that the roller 13 can rotate stably and will not loosen or get stuck, thereby greatly reducing the friction between the drive rod 3 and the drive groove 4.

[0028] Working principle: When the driving rod 3 moves in the driving groove 4 under the action of external power, the movement of the driving rod 3 drives the slider 2 to slide along the guide block 1, and the rack 5 on the slider 2 moves with the movement of the slider 2, and the rack 5 engages with the driving gear 7 on the first rotating shaft 8, so that the driving gear 7 rotates. The rotation of the driving gear 7 drives the first rotating shaft 8 to rotate, and the first bevel gear 6 on the first rotating shaft 8 also rotates accordingly. The first bevel gear 6 engages with the second bevel gear 9 on the second rotating shaft 10, thereby transmitting power to the second rotating shaft 10. The rotation of the second rotating shaft 10 drives the diaphragm pressure frame 12 to rotate around the second rotating shaft 10, so that the diaphragm pressure frame 12 automatically disengages the product upside down. Through this combined slider 2 structure, the linear motion of the driving rod 3 can be converted into the rotational motion of the diaphragm pressure frame 12, thereby meeting the IMD mold's production process so that the diaphragm pressure frame 12 automatically disengages the product upside down. This structure has a compact design and high transmission efficiency, which can improve the production efficiency and product quality of the IMD mold.

Claims

1. A combined slider structure for an IMD mold, comprising a guide block (1), a slider (2), a drive rod (3) and a diaphragm pressing frame (12), characterized in that: The guide block (1) and the slider (2) are provided with a driving groove (4) for the driving rod (3) to move. The diaphragm pressing frame (12) is fixed in the machine body through a support plate (11). The diaphragm pressing frame (12) is rotatably arranged on the support plate (11) through a second rotating shaft (10). The second rotating shaft (10) is sleeved with a second bevel gear (9). A rack (5) is fixedly connected to the slider (2), a first rotating shaft (8) is rotatably connected to the guide block (1), and a driving gear (7) meshing with the rack (5) and a first bevel gear (6) meshing with the second bevel gear (9) are sleeved on the first rotating shaft (8).

2. The IMD mold-specific combined slider structure according to claim 1, characterized in that: The diameter of the first bevel gear (6) is greater than the diameter of the second bevel gear (9).

3. The IMD mold-specific combined slider structure according to claim 1, characterized in that: A limiting plate (14) is fixedly connected to the second rotating shaft (10), and a movable groove (16) for the limiting plate (14) to move is provided in the supporting plate (11).

4. The IMD mold-specific combined slider structure according to claim 3, characterized in that: A limiting block (17) for limiting the position of the limiting plate (14) is fixedly connected in the movable groove (16).

5. The IMD mold-specific combined slider structure according to claim 4, characterized in that: A tension spring (15) is movably provided in the movable groove (16), and two ends of the tension spring (15) are fixedly connected to the limiting block (17) and the limiting plate (14) respectively.

6. The IMD mold-specific combined slider structure according to claim 1, characterized in that: A roller (13) in contact with the driving rod (3) is rotatably connected in the driving groove (4).

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