A multi-cavity high speed injection mold

Abstract

The utility model discloses a kind of multi-cavity high-speed injection mould, it is related to injection mould technical field, including bottom plate, adjusting structure and platen structure;First, start motor drives screw rod rotation, since screw rod is connected with slide rack thread, and slide rack is fixed through sliding block and adjusting plate, while slide rack itself is limited in the sliding slot of connecting frame and can only slide up and down, therefore, the vertical lifting movement of slide rack, sliding block and adjusting plate is converted to the rotation movement of screw rod, the several adjusting shafts of adjusting plate top fixed connection will be synchronous with adjusting plate lifting, the top of these adjusting shafts will be inserted into the corresponding cavity opened in the top of lower mould, to accurately adjust the depth of mould cavity or the thickness of product;After adjusting, mould is ready to close mould injection, then control the two electric push rods installed at the bottom of fixed frame to extend downwards, the power output end of electric push rod promotes the platen structure fixedly connected therewith to descend as a whole, and then make the upper mould in platen structure close to lower mould.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically a multi-cavity high-speed injection mold. Background Technology

[0002] Injection molds are specialized tooling designed for injection molding processes. Their core components include a cavity with a pre-defined product shape, runners, a gate, and a demolding mechanism. These components work together to form a complete molding system. During operation, the mold works closely with the injection molding machine. The machine first heats the plastic raw material to a molten state, then injects the molten material into the mold cavity under specific pressure. The molten material maintains its pre-defined shape within the cavity and solidifies through a cooling process, ultimately forming a plastic product that conforms to the shape of the cavity. The core function of injection molds is to achieve mass production of plastic raw materials. During the molding process, the mold, through its structural characteristics, ensures the dimensional accuracy and appearance of the product. Consistency and structural integrity ensure that every product produced meets production requirements. Simultaneously, molds possess strong adaptability, capable of handling different plastic raw materials and meeting the production needs of plastic products with varying shapes. Based on these core characteristics, injection molds have a wide range of applications, covering multiple fields such as 3C electronics, automotive manufacturing, medical devices, daily consumer goods, packaging, and building materials. Specifically, various components in the 3C electronics field, whether internal structural parts or external decorative parts, rely on injection molds for production; related parts in automotive manufacturing, including interior parts and some external components, are molded using injection molds; and various plastic components in medical devices are molded using injection molds. High precision requirements necessitate the use of injection molds to ensure quality; everyday consumer goods, largely made of plastic, rely heavily on injection molds for production; various packaging products in the packaging industry are mass-produced using injection molds; plastic components in building materials also depend on injection molds for molding; in terms of product size, from small items like mobile phone accessories, tableware, and toys to large components such as car bumpers, appliance casings, and building pipes, the production process of any plastic part is inseparable from injection molds. Injection molds have become an indispensable key piece of equipment in the plastics processing industry, supporting product production and supply chain stability in multiple fields; however, the cavity size of traditional molds... Traditional molds are mostly fixed in design, and their molding-related structures cannot be flexibly adjusted. When production needs change and different thicknesses or specifications of the same type of product are required, traditional molds are difficult to adapt. At this time, enterprises can only meet the new production requirements by replacing the entire mold or the core molding components of the mold. This method directly increases the manufacturing cost of the mold, and at the same time, it is necessary to keep multiple molds or molding components in stock, which increases inventory pressure. During the replacement process, the machine needs to be stopped, and after the mold is replaced, debugging and calibration are required, which interrupts the continuity of production and ultimately leads to a decrease in production efficiency. Therefore, those skilled in the art provide a multi-cavity high-speed injection mold to solve the problems mentioned in the background art. Utility Model Content

[0003] The purpose of this invention is to provide a multi-cavity high-speed injection mold to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A multi-cavity high-speed injection mold includes a base plate, an adjustment structure, and a pressure plate structure. A fixed frame is fixedly connected to one side of the top of the base plate, and two electric push rods are fixedly connected to the bottom of the fixed frame. The power output ends of the two electric push rods are fixedly connected through the pressure plate structure. Connecting frames are fixedly connected to both sides of the top of the base plate, and a lower mold is fixedly connected between the two connecting frames. Each connecting frame has a sliding groove, and an adjustment structure is slidably connected in the sliding groove.

[0006] As a further embodiment of this utility model: the adjustment structure includes an adjustment plate, a slider, a motor, a slide frame, a lead screw and an adjustment shaft. Sliders are fixedly connected to both sides of the adjustment plate, and slide frames corresponding to the slide grooves are fixedly connected to the side of the sliders away from the adjustment plate.

[0007] As a further improvement of this utility model: the slide is slidably connected to the slide groove, and a lead screw is threadedly connected to one side of the slide. The bottom of the lead screw passes through one side of the corresponding connecting frame and is fixedly connected to the power output shaft of the motor.

[0008] As a further improvement of this utility model: the lead screw is rotatably connected to the connecting frame, and a number of equally spaced adjusting shafts are fixedly connected to the top of the adjusting plate.

[0009] As a further embodiment of this utility model: the pressure plate structure includes an upper mold, a blocking block, a flow port, a pressure shaft, and a flow pipe. The flow pipe is fixedly connected to the bottom center of the upper mold, and the top of the flow pipe passes through the top of the upper mold and has a flow port.

[0010] As a further improvement of this utility model: the flow port is internally threaded with a plug, and the bottom of the upper mold is fixedly connected with several pressure shafts arranged at equal intervals.

[0011] As a further embodiment of this utility model: the top of the lower mold is provided with a plurality of cavities that are equidistantly arranged and correspond to the adjustment shaft on the adjustment structure and the pressure shaft on the pressure plate structure.

[0012] As a further embodiment of this utility model: a flow groove corresponding to the flow channel is provided in the middle of the top of the lower mold, and the flow groove is connected to several cavities respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In use, first, start the motor fixed on one side of the connecting frame. The motor's power output shaft drives the lead screw to rotate. Since the lead screw is threadedly connected to the slide, and the slide is fixed to the adjusting plate through the slider, and the slide itself is restricted to slide up and down in the groove of the connecting frame, the rotational motion of the lead screw is converted into the vertical lifting motion of the slide, slider and adjusting plate. Several adjusting shafts fixedly connected to the top of the adjusting plate will rise and fall synchronously with the adjusting plate. The top of these adjusting shafts will extend into the corresponding cavity opened at the top of the lower mold. By precisely controlling the rotation angle of the motor, the depth of the adjusting shafts into the cavity can be precisely set, thereby precisely adjusting the depth of the mold cavity or the thickness of the product.

[0015] 2. After adjustment, the mold is ready for injection molding. At this time, the two electric push rods installed at the bottom of the fixed frame extend downwards. The power output end of the electric push rod pushes the pressure plate structure fixed to it to move down as a whole. The upper mold in the pressure plate structure moves closer to the lower mold. Several pressure shafts fixed at the bottom of the upper mold correspond one-to-one with the cavity of the lower mold. During the mold closing process, these pressure shafts will be accurately pressed into the corresponding cavity. Together with the adjustment shaft that has been adjusted in place, they work together to form a precise, sealed space in the cavity for molding the product.

[0016] 3. At the same time, the flow channel at the bottom center of the upper mold will also be precisely connected to the flow groove at the top center of the lower mold. Since the flow groove is connected to all cavities, when the injection molding machine injects molten plastic material through the flow port, the material will flow through the flow channel into the flow groove, and then be quickly and evenly distributed to each independent cavity by the flow groove. This design ensures that the molten material can fill all cavities at the same time, ensuring the consistency and high speed of multi-cavity injection molding. In the non-injection stage, the flow port can be closed by the plug.

[0017] 4. After the plastic in the cavity cools and solidifies, the electric push rod retracts, driving the pressure plate structure upward, separating the upper mold from the lower mold. Subsequently, the adjustment structure can drive the adjustment shaft upward again, ejecting the molded product from the cavity, thus completing one full injection molding cycle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a multi-cavity high-speed injection mold.

[0019] Figure 2 This is a schematic diagram of the side structure of a multi-cavity high-speed injection mold.

[0020] Figure 3 This is a schematic diagram of the lower mold connection structure in a multi-cavity high-speed injection mold.

[0021] Figure 4 This is a schematic diagram of the adjustment structure in a multi-cavity high-speed injection mold.

[0022] Figure 5 This is a schematic diagram of the fixed frame connection structure in a multi-cavity high-speed injection mold.

[0023] Figure 6 This is a schematic diagram of the pressure plate structure in a multi-cavity high-speed injection mold.

[0024] In the diagram: 1. Base plate; 2. Connecting frame; 3. Fixing frame; 4. Electric push rod; 5. Adjustment structure; 51. Adjustment plate; 52. Slider; 53. Motor; 54. Slide carriage; 55. Lead screw; 56. Adjustment shaft; 6. Pressure plate structure; 61. Upper mold; 62. Block; 63. Flow port; 64. Pressure shaft; 65. Flow pipe; 7. Lower mold; 8. Slide groove; 9. Flow groove; 10. Cavity. Detailed Implementation

[0025] 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.

[0026] Example 1

[0027] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6This embodiment provides a multi-cavity high-speed injection mold, including a base plate 1, an adjustment structure 5, and a pressure plate structure 6. A fixed frame 3 is fixedly connected to one side of the top of the base plate 1, and two electric push rods 4 are fixedly connected to the bottom of the fixed frame 3. The power output ends of the two electric push rods 4 are fixedly connected through the pressure plate structure 6. Connecting frames 2 are fixedly connected to both sides of the top of the base plate 1, and a lower mold 7 is fixedly connected between the two connecting frames 2. Each connecting frame 2 has a sliding groove 8, and the adjustment structure 5 is slidably connected in the sliding groove 8. The top of the lower mold 7 has several cavities 10 equidistantly arranged, corresponding to the adjustment shafts 56 on the adjustment structure 5 and the pressure shafts 64 on the pressure plate structure 6. The middle part of the mold has a flow channel 9 corresponding to the flow channel 65, and the flow channel 9 is connected to several cavities 10. The flow channel 65 at the bottom center of the upper mold 61 is precisely connected to the flow channel 9 at the top center of the lower mold 7. Since the flow channel 9 is connected to all cavities 10, when the injection molding machine injects molten plastic material through the flow port 63, the material will flow through the flow channel 65 into the flow channel 9, and then be quickly and evenly distributed to each independent cavity 10 by the flow channel 9. This design ensures that the molten material can fill all cavities 10 at the same time, ensuring the consistency and high speed of multi-cavity injection molding. In the non-injection stage, the flow port 63 can be closed by the block 62.

[0028] Example 2

[0029] Reference Figure 1-6This embodiment is based on the previous embodiment, but differs in that the adjustment structure 5 includes an adjustment plate 51, a slider 52, a motor 53, a slide 54, a lead screw 55, and adjustment shafts 56. Slider 52s are fixedly connected to both sides of the adjustment plate 51. A slide 54, corresponding to the slide groove 8, is fixedly connected to the side of the slider 52 away from the adjustment plate 51. The slide 54 is slidably connected to the slide groove 8. A lead screw 55 is threaded onto one side of the slide 54. The bottom of the lead screw 55 passes through one side of the corresponding connecting frame 2 and is fixedly connected to the power output shaft of the motor 53. The lead screw 55 is rotatably connected to the connecting frame 2. Several equally spaced adjustment shafts 56 are fixedly connected to the top of the adjustment plate 51. A motor 53, fixed on one side of the connecting frame 2, drives a lead screw 55 to rotate via its power output shaft. Since the lead screw 55 is threadedly connected to the slide 54, and the slide 54 is fixed to the adjusting plate 51 via a slider 52, and the slide 54 itself is confined within the slide groove 8 of the connecting frame 2 and can only slide up and down, the rotational motion of the lead screw 55 is converted into the vertical lifting motion of the slide 54, slider 52, and adjusting plate 51. Several adjusting shafts 56 fixedly connected to the top of the adjusting plate 51 will rise and fall synchronously with the adjusting plate 51. The top ends of these adjusting shafts 56 will extend into the corresponding cavity 10 opened at the top of the lower mold 7. By precisely controlling the rotation angle of the motor 53, the adjusting shafts 56 can be precisely set. The depth of the insertion into the cavity 10 is precisely adjusted to control the depth of the mold cavity 10 or the thickness of the product. The pressure plate structure 6 includes an upper mold 61, a block 62, a flow port 63, a pressure shaft 64, and a flow channel 65. The flow channel 65 is fixedly connected to the bottom center of the upper mold 61. The top of the flow channel 65 passes through the top of the upper mold 61 and has a flow port 63. The block 62 is internally threaded into the flow port 63. Several pressure shafts 64 arranged at equal intervals are fixedly connected to the bottom of the upper mold 61. After adjustment, the mold is ready to close for injection molding. At this time, the two electric push rods 4 installed at the bottom of the fixed frame 3 extend downwards, and the power output end of the electric push rods 4 pushes the pressure plate structure 6 fixedly connected to them to adjust the pressure plate structure 6. As the mold descends, the upper mold 61 in the pressure plate structure 6 approaches the lower mold 7. Several pressure shafts 64 fixed at the bottom of the upper mold 61 correspond one-to-one with the cavities 10 of the lower mold 7. During the mold closing process, these pressure shafts 64 are accurately pressed into the corresponding cavities 10, working together with the previously adjusted adjusting shaft 56 to form a precise, sealed space within the cavity 10 for molding the product. After the plastic in the cavity 10 cools and solidifies, the electric push rod 4 retracts, driving the pressure plate structure 6 upward, separating the upper mold 61 from the lower mold 7. Subsequently, the adjusting structure 5 can drive the adjusting shaft 56 upward again, ejecting the molded product from the cavity 10, thus completing one complete injection molding cycle.

[0030] 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.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-cavity high-speed injection mold, comprising a base plate (1), an adjustment structure (5), and a pressure plate structure (6), characterized in that, A fixed frame (3) is fixedly connected to one side of the top of the base plate (1). Two electric push rods (4) are fixedly connected to the bottom of the fixed frame (3). The power output ends of the two electric push rods (4) are fixedly connected through the pressure plate structure (6). Connecting frames (2) are fixedly connected to both sides of the top of the base plate (1). A lower mold (7) is fixedly connected between the two connecting frames (2). Slide grooves (8) are opened on each connecting frame (2). An adjustment structure (5) is slidably connected in the slide grooves (8). The adjustment structure (5) includes an adjustment plate (51), a slider (52), a motor (53), a slide (54), a lead screw (55), and an adjustment shaft (56). The slider (52) is fixedly connected to both sides of the adjustment plate (51). The slide (54) is fixedly connected to the side of the slider (52) away from the adjustment plate (51) and is correspondingly provided with the slide groove (8). The slide (54) is slidably connected to the slide groove (8). The lead screw (55) is threadedly connected to one side of the slide (54). The bottom of the lead screw (55) passes through one side of the corresponding connecting frame (2) and is fixedly connected to the power output shaft of the motor (53). The lead screw (55) is rotatably connected to the connecting frame (2). Several adjustment shafts (56) arranged at equal intervals are fixedly connected to the top of the adjustment plate (51).

2. The multi-cavity high-speed injection mold according to claim 1, characterized in that, The pressure plate structure (6) includes an upper mold (61), a block (62), a flow port (63), a pressure shaft (64), and a flow pipe (65). The flow pipe (65) is fixedly connected to the bottom center of the upper mold (61), and the top of the flow pipe (65) passes through the top of the upper mold (61) and has a flow port (63).

3. A multi-cavity high-speed injection mold according to claim 2, characterized in that, The flow port (63) is internally threaded with a plug (62), and the bottom of the upper mold (61) is fixedly connected with several pressure shafts (64) arranged at equal intervals.

4. The multi-cavity high-speed injection mold according to claim 1, characterized in that, The lower mold (7) has several cavities (10) at equal intervals on its top, which are corresponding to the adjustment shaft (56) on the adjustment structure (5) and the pressure shaft (64) on the pressure plate structure (6).

5. A multi-cavity high-speed injection mold according to claim 1, characterized in that, The lower mold (7) has a flow groove (9) at the top center that corresponds to the flow pipe (65), and the flow groove (9) is connected to several cavities (10).

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