Injection mold capable of rapidly cooling workpiece
By designing the cooling fan to cooperate with the wedge block, push plate and contact plate in the injection mold, the problem of uneven cooling of traditional molds is solved, the workpiece is cooled quickly and evenly, and the production efficiency and product quality are improved.
Patent Information
- Application Number
- CN202422860323.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-22
AI Technical Summary
The cooling system of traditional injection molds has problems with uneven heat conduction and inconsistent cooling speed, which leads to product deformation or stress concentration, affecting production efficiency and cost.
The cooling fan is designed with a wedge block, a push plate and a contact plate. Air cooling is achieved through a rotating and sliding mechanism to ensure a wide and uniform wind coverage. The slider and spring buffer are used to reduce impact, and the partition controls the wind coverage distance.
It achieves rapid and uniform cooling of the workpiece, reduces product deformation and stress concentration, and improves production efficiency and cooling effect.
Smart Images
Figure CN223383899U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molds, and in particular to an injection mold capable of quickly cooling a workpiece. Background Art
[0002] During the injection molding process, the cooling phase is a critical step in determining final product quality. The goal here is to remove heat from the mold as quickly as possible, allowing the plastic part to solidify quickly and maintain the required dimensional accuracy. Cooling efficiency directly impacts cycle time, which in turn impacts overall production efficiency and costs.
[0003] Traditional cooling systems usually use water as the cooling medium and set up a series of pipes (water channels) inside the mold to achieve heat conduction. However, this design has some obvious disadvantages:
[0004] 1. The location of the water channel is usually fixed, and in order to simplify the manufacturing process, it is often only distributed at the edge or center of the mold, which limits the effective conduction of heat;
[0005] 2. The cooling speed of different parts of the mold may be inconsistent, causing deformation or stress concentration in the product during the curing process.
[0006] Therefore, in view of the above problems, it is urgent to propose an injection mold that can quickly cool the workpiece. Utility Model Content
[0007] In order to overcome the above-mentioned shortcomings in the prior art, the utility model provides an injection mold that can quickly cool a workpiece.
[0008] The technical solution is: an injection mold that can quickly cool the workpiece, including a base, a fixed mold, a movable mold, a support frame, a connecting shaft, a bearing, a cooling fan, a torsion spring, a wedge block, a spring I, a contact plate I, a push plate and a contact plate II. A fixed mold is provided at one end of the base, and a movable mold is slidingly provided between the two sides of the other end of the base. A support frame close to the movable mold is provided on the base, and bearings are rotatably provided on both inner sides of the support frame, and connecting shafts are provided on the opposite sides of the bearings. A torsion spring is provided between the connecting shaft and the bearing on the same side, and a cooling fan is provided between the two connecting shafts, so that the cooling fan can rotate and hit and cool the movable mold. A contact plate I is symmetrically provided on the side of the cooling fan facing the movable mold, a wedge block is symmetrically penetrated and slidably provided on the top of the support frame, a spring I is provided between the wedge block and the support frame, and the wedge block abuts against the contact plate I on the same side, and a contact plate II is provided on the side of the wedge blocks away from each other. A push plate that contacts and cooperates with the contact plate II on the same side is symmetrically provided on the movable mold.
[0009] Furthermore, the push plate is in a state of being extended while being in contact with the height of the contact plate II, and an inclined surface inclined toward the movable mold is provided at the extended end of the push plate.
[0010] Furthermore, it also includes a mounting plate, a guide rod, a slider and a spring II. The top of the support frame is symmetrically provided with a mounting plate extending downward. Both mounting plates are provided with a set of guide rods. A slider is slidingly provided between the two guide rods on the same side to contact and cooperate with the contact plate I on the same side. A spring II is provided between the slider and the mounting plate on the same side.
[0011] Furthermore, a soft pad is included, and the slider is provided with a soft pad.
[0012] Furthermore, a partition is included, and the movable mold is provided with a partition for controlling the spacing.
[0013] Furthermore, the diameter of the cooling fan is adapted to the cavity size of the movable mold so as to be suitable for cooling operations in accordance with the size of the workpiece.
[0014] The beneficial effects of the present invention are as follows: 1. The present invention releases the restriction between the wedge block and the contact plate I by pushing the plate and the contact plate II, so that the cooling fan can be quickly turned on to perform air-cooling on the workpiece on the movable mold. Because the wind covers a wide range, the cooling of the high-temperature workpiece can be achieved more evenly and quickly.
[0015] 2. The utility model uses a slider to contact the contact plate I that is rotated and hit, so that the soft pad and spring II thereon are used to buffer the operation of the cooling fan, thereby achieving the effect of reducing the impact. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.
[0017] Figure 2 It is a three-dimensional structural diagram of the support frame, cooling fan and other components of the utility model.
[0018] Figure 3 It is a three-dimensional structural diagram of components such as the mounting plate and the slider of the utility model.
[0019] Figure 4 It is a three-dimensional structural diagram of components such as the push plate and contact plate II of the utility model.
[0020] The names and serial numbers of the parts in the figure are: 1. Machine base, 2. Fixed mold, 3. Movable mold, 4. Support frame, 5. Connecting shaft, 6. Bearing, 7. Cooling fan, 8. Torsion spring, 9. Wedge block, 10. Spring I, 11. Contact plate I, 12. Mounting plate, 13. Guide rod, 14. Slider, 15. Spring II, 16. Cushion, 17. Push plate, 18. Contact plate II, 19. Partition. DETAILED DESCRIPTION
[0021] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.
[0022] Example: An injection mold capable of rapidly cooling a workpiece, such as Figure 1-Figure 4 As shown, it includes a base 1, a fixed mold 2, a movable mold 3, a support frame 4, a connecting shaft 5, a bearing 6, a cooling fan 7, a torsion spring 8, a wedge block 9, a spring I 10, a contact plate I 11, a push plate 17 and a contact plate II 18. The base 1 is the basic structure of the entire mold and can play an important role in bearing and supporting. A fixed mold 2 is provided at one end of the base 1, and a movable mold 3 is slidingly provided between the two sides of the other end of the base 1. The fixed mold 2 is fixed, while the movable mold 3 can slide on a specific track on the base 1. When the workpiece is formed, The movable mold 3 can be slid open to remove the workpiece. A support frame 4 is provided on the machine base 1 near the side of the movable mold 3. Bearings 6 are rotatably provided on both sides of the support frame 4. Connecting shafts 5 are provided on the opposite sides of the bearings 6. A torsion spring 8 is provided between the connecting shaft 5 and the bearing 6 on the same side. A cooling fan 7 is provided between the two connecting shafts 5, so that the cooling fan 7 can be rotated and aimed at the movable mold 3 for cooling. The rotating operation can be aimed at the area that needs cooling in a faster way, thereby performing rapid cooling, and the cooling fan 7 The diameter is adapted to the cavity size of the movable mold 3 to perform cooling operations in accordance with the size of the workpiece to ensure cooling efficiency. The cooling fan 7 is symmetrically provided with a contact plate Ⅰ11 on one side of the movable mold 3. A wedge block 9 is symmetrically penetrated and slidably provided on the top of the support frame 4. A spring Ⅰ10 is provided between the wedge block 9 and the support frame 4, and the wedge block 9 is in contact with the contact plate Ⅰ11 on the same side, which can limit the operation of the cooling fan 7 and also control the movement of the cooling fan 7. The wedge blocks 9 are provided on the side away from each other. A contact plate II 18 is provided, and a push plate 17 is symmetrically provided on the movable mold 3 to contact and cooperate with the contact plate II 18 on the same side. The push plate 17 is in a state of being in contact with the height of the contact plate II 18 and extended, and an inclined surface inclined toward the movable mold 3 is provided at the extended end of the push plate 17, so that when the movable mold 3 slides, the push plate 17 will push the contact plate II 18, thereby affecting the position change of the wedge block 9, so that the cooling fan 7 can be allowed to rotate without being restricted by the contact plate I 11, and the air outlet is aimed at the workpiece for cooling operation.
[0023] like Figure 2 and Figure 3 As shown, it also includes a mounting plate 12, a guide rod 13, a slider 14 and a spring II 15. The top of the support frame 4 is symmetrically provided with a mounting plate 12 extending downward. The two mounting plates 12 are each provided with a group of guide rods 13. A slider 14 is slidingly provided between the two guide rods 13 on the same side and contacts and cooperates with the contact plate I 11 on the same side. A spring II 15 is provided between the slider 14 and the mounting plate 12 on the same side, forming a sliding buffer system, which allows the contact plate I 11 to move as the position of the movable mold 3 changes, thereby contacting the slider 14 and pushing it to slide, thereby buffering the impact force of the cooling fan 7 to achieve a slowing effect.
[0024] like Figure 3 As shown, a soft pad 16 is also included. The soft pad 16 is provided on the slider 14 to reduce the hard collision between the contact plate I 11 and the slider 14, thereby protecting the equipment.
[0025] like Figure 1 and Figure 4 As shown, a partition 19 is also included. The movable mold 3 is provided with a partition 19 for controlling the spacing, so that the cooling fan 7 can maintain a certain distance from the workpiece, ensuring that the workpiece can be evenly covered by the wind.
[0026] During the injection molding process, a driver is connected to the movable mold 3, driving the movable mold 3 to fit the fixed mold 2, and the two cooperate to perform injection molding. After the workpiece is formed, the movable mold 3 separates from the fixed mold 2 and moves away from the fixed mold 2. When the movable mold 3 moves a certain distance, the push plate 17 on it contacts the corresponding contact plate Ⅱ18, pushing the contact plate Ⅱ18 upward through the inclined surface, and driving the wedge block 9 connected to it to rise accordingly. At the same time, the connected spring Ⅰ10 will deform. As the wedge block 9 moves upward, it will lose contact with the corresponding contact plate Ⅰ11, and the cooling fan 7 will no longer be restricted. Under the force of the torsion spring 8, the connecting shaft 5 resets and rotates, driving the cooling fan 7 to operate synchronously and rotate downward. Subsequently, the contact plate Ⅰ11 will contact the slider 14 below as it rotates, and directly touch the soft pad 16 on it. Influenced by the rotational force, sliders 14 slide downward on their corresponding guide rods 13, deforming springs II 15 and cushioning the movement of cooling fan 7, allowing it to descend smoothly. When cooling fan 7 is fully lowered, it is almost in contact with partition 19, at which point the drive to movable mold 3 can be stopped. The rotation of cooling fan 7 directs the air outlet toward movable mold 3, cooling the workpiece on it. This allows the hot workpiece to cool quickly, while also providing more even coverage across the workpiece, resulting in a more effective cooling effect.
[0027] The above is a detailed introduction to the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of the present application. At the same time, for those skilled in the art, based on the idea of the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.
Claims
1. An injection mold capable of rapidly cooling a workpiece, comprising a base (1), a fixed mold (2) and a movable mold (3), wherein the fixed mold (2) is provided at one end of the base (1), and the movable mold (3) is slidably provided between two sides of the other end of the base (1); characterized in that: The machine base (1) further comprises a support frame (4), a connecting shaft (5), a bearing (6), a cooling fan (7), a torsion spring (8), a wedge block (9), a spring I (10), a contact plate I (11), a push plate (17) and a contact plate II (18). The machine base (1) is provided with a support frame (4) close to the movable mold (3). The inner sides of the support frame (4) are both rotatably provided with bearings (6). The opposite sides of the bearings (6) are both provided with connecting shafts (5). A torsion spring (8) is provided between the connecting shaft (5) and the bearing (6) on the same side. A cooling fan (7) is provided between the two connecting shafts (5) so that the cooling fan (7) can be cooled. The fan (7) can rotate and strike down and aim at the movable mold (3) for cooling. The cooling fan (7) is symmetrically provided with a contact plate I (11) on one side facing the movable mold (3). A wedge block (9) is symmetrically penetrated and slidably provided on the top of the support frame (4). A spring I (10) is provided between the wedge block (9) and the support frame (4), and the wedge block (9) is in contact with the contact plate I (11) on the same side. A contact plate II (18) is provided on the side of the wedge block (9) that is away from each other. A push plate (17) is symmetrically provided on the movable mold (3) and is in contact with the contact plate II (18) on the same side.
2. The injection mold capable of rapidly cooling a workpiece according to claim 1, characterized in that: The push plate (17) is in an extended state with a height matching that of the contact plate II (18), and an inclined surface inclined toward the movable mold (3) is provided at the extended end of the push plate (17).
3. The injection mold capable of rapidly cooling a workpiece according to claim 2, characterized in that: The invention also includes a mounting plate (12), a guide rod (13), a slider (14) and a spring II (15). The top of the support frame (4) is symmetrically provided with a mounting plate (12) extending downward. Both mounting plates (12) are provided with a group of guide rods (13). A slider (14) is provided between the two guide rods (13) on the same side and contacts and cooperates with the contact plate I (11) on the same side. A spring II (15) is provided between the slider (14) and the mounting plate (12) on the same side.
4. The injection mold capable of rapidly cooling a workpiece according to claim 3, characterized in that: It also includes a soft pad (16), and the soft pad (16) is arranged on the slider (14).
5. The injection mold capable of rapidly cooling a workpiece according to claim 4, characterized in that: It also includes a partition (19), and the movable mold (3) is provided with a partition (19) for controlling the spacing.
6. The injection mold capable of rapidly cooling a workpiece according to claim 5, characterized in that: The diameter of the heat dissipation fan (7) is adapted to the cavity size of the movable mold (3) so as to be suitable for performing cooling operations in accordance with the size of the workpiece.