Multi-cavity synchronous injection molding uniform distribution structure for injection mold
Technical Field
The utility model relates to the technical field of injection molds, in particular to a multi-cavity synchronous injection uniform distribution structure for an injection mold.
Background
The injection mould is a tool for mass production of plastic products, which is characterized in that a plastic raw material melted by heating is injected into a mould cavity under high pressure through an injection molding process, and after cooling and solidification, the plastic product with specific shape and size is obtained, the structure is precise and complex, the injection mould mainly comprises a pouring system, a molding part and a structural part, the pouring system guides a plastic melt to flow into the mould cavity, the molding part determines the shape and size of the product, the structural parts ensure the normal operation and opening and closing of the mold, the injection mold is widely applied to industries such as automobile manufacturing, electronic appliances, medical appliances, daily necessities and the like, is small in size to mobile phone shells and toys, is large enough to be used as automobile bumpers and household appliance shells, is not separated from the 'molding', and is a core element for realizing mass production and stable quality of products by virtue of the advantages of high efficiency, high precision and repeatable production.
The patent of publication number CN218019833U discloses a button injection mold of multicavity room, including the supporting seat, supporting seat lower extreme mid-mounting has jack-up device, and the support frame is all installed to supporting seat lower extreme left portion and lower extreme right-hand member, and supporting seat upper end mid-mounting has the bed die, and supporting seat right-hand member mid-mounting has cooling device, and the support frame is installed at supporting seat upper end rear portion, and injection molding device is installed to support frame upper end front portion. However, in the use process of the conventional device, the plurality of molding cavities are fed through the upper parts, so that fluid is introduced into different cavities successively due to the distance, the cooling time in each cavity cannot be controlled to be synchronous, and the uniform filling of the fluid into the plurality of cavities cannot be ensured.
Therefore, in order to solve the problems, we propose a multi-cavity synchronous injection molding uniform distribution structure for an injection mold.
Disclosure of utility model
The utility model aims to provide a multi-cavity synchronous injection uniform distribution structure for an injection mold, which solves the problems that in the prior art, a plurality of molding cavities are fed through the upper part in the use process, so that fluid enters different cavities in sequence due to distance, the cooling time in each cavity cannot be controlled to be synchronous, and the fluid cannot be uniformly filled into the plurality of cavities.
In order to achieve the purpose, the multi-cavity synchronous injection molding uniform distribution structure for the injection mold comprises a bottom plate, wherein four feet at the top of the bottom plate are fixedly connected with struts, the top of each strut is fixedly connected with a top plate, the bottom of each top plate is uniformly and fixedly connected with an air cylinder, the output end of each air cylinder is fixedly connected with a movable mold plate, the top of each movable mold plate is in penetrating connection with a main runner, two ends of the bottom of each main runner are uniformly and fixedly connected with distribution runners, the tail ends of the distribution runners are fixedly connected with point pouring gates, and the distribution runners are positioned in the movable mold plates.
Further, the top of roof is connected with the retainer plate in a penetrating way, and the end of retainer plate links to each other with the top of sprue is fixed.
Further, the electric telescopic rod is evenly and fixedly connected with at the top of bottom plate, and the fixed template is fixedly connected with at the top of electric telescopic rod.
Further, both ends at bottom plate top all fixedly connected with curb plate, all seted up the spout on the inner wall of curb plate, spout and fixed connection are in the slider adaptation on movable mould board and the fixed mould board both ends outer wall.
Further, the bottom of movable mould board evenly fixedly connected with closing plate, the seal groove has evenly been seted up at the top of fixed mould board, and movable mould board and fixed mould board pass through closing plate and seal groove sealing connection.
Further, a cavity is uniformly formed in the inner side of the sealing groove at the top of the fixed die plate, and an exhaust groove extending to the outer wall of the fixed die plate is formed above the inner wall of the cavity.
Further, a push rod is movably connected in a cavity on the fixed die plate, and the bottom of the push rod is fixedly connected with the top of the bottom plate.
Compared with the prior art, the multi-cavity synchronous injection molding uniform distribution structure for the injection mold has the beneficial effects that a novel structural design is adopted, and the multi-cavity synchronous injection molding uniform distribution structure for the injection mold has the following specific contents:
(1) According to the multi-cavity synchronous injection molding uniform distribution structure for the injection mold, the main runner and the sub-runners are symmetrically distributed, after plastic raw materials in a molten state are injected into the main runner, the raw materials smoothly descend along the main runner by virtue of the balanced pressure conduction characteristic of the symmetrical structure and are precisely and uniformly distributed to the sub-runners at the two ends of the bottom of the main runner, so that the problem of uneven filling caused by the difference of the distances between each cavity and an injection port in the traditional injection molding mode is effectively avoided, the equal amount of injection molding materials can be ensured to be received by each cavity, the equal amount of material filling ensures the consistency of key parameters such as density, thickness and the like of each part when plastic products are molded, the quality problems such as size deviation and surface defects caused by uneven material distribution are greatly reduced, and the molding quality and the overall consistency of plastic products are remarkably improved, and powerful guarantee is provided for large-scale and high-quality plastic product production.
(2) This injection mold is with even reposition of redundant personnel structure of multi-chamber synchronous injection molding, in injection mold's operation in-process, electric telescopic handle and ejector pin are closely cooperated, when the mould gets into the parting stage, electric telescopic handle responds rapidly, its powerful thrust promotes the stationary die plate steadily and removes, promote the mould to open smoothly, this moment, the ejector pin relies on the ingenious cooperation with the stationary die plate, the plastic product of shaping is released from the die cavity accurately, this efficient ejection mechanism, the follow-up material taking out operation has been greatly made things convenient for, production cycle has been shortened by a wide margin, show the production efficiency, seal connection design has been adopted between the seal groove at movable die plate bottom and stationary die plate top for realizing large-scale continuous production, in injection molding process can effectively block the leakage of plastic melt, ensure the integrality of injection molding process, whether in the stage of plastic melt flow filling the die cavity, the molding precision of plastic product has been guaranteed, product flaw and material waste because of melt leakage has been avoided, and the exhaust groove that this high-efficient is elaborately opened in the die cavity inner wall top, along with the injection molding, the production cycle has been shortened, the air defect that has been realized in the fact that the air has been difficult to take place in the die cavity has been completely filled in the rapid, the air-down in the air-phase has been completely taken place in the fact, the air-vent has been designed, the air-vent has been completely effective, the air-vent has been completely taken place in the fact in the air-stable production has high quality has been required to be effective, and has been completely taken place in the fact air cooling air quality has the air quality has been very effective air-stable air quality has been required to be easy and has been used in the air quality and has been in the air quality and easy production.
Further, after the plastic products are cooled and formed, the electric telescopic rod is started, the electric telescopic rod is retracted upwards to drive the fixed die plate to move upwards, die opening is achieved, in the die opening process, the ejector rod in the cavity of the fixed die plate moves along with the fixed die plate, and the relative position is unchanged because the bottom of the ejector rod is fixedly connected with the bottom plate, so that the ejector rod can eject the formed plastic products out of the cavity, an operator can conveniently take out the plastic products, and one injection molding production cycle is completed.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;
FIG. 3 is a schematic perspective view of a movable mold assembly according to the present utility model;
FIG. 4 is an exploded view of the movable mold assembly of the present utility model;
FIG. 5 is a schematic perspective view of a stationary mold assembly of the present utility model;
FIG. 6 is an exploded view of the stationary mold assembly of the present utility model;
The drawing shows 1, a bottom plate, 11, a pillar, 111, a side plate, 12, a top plate, 121, a positioning ring, 13, an air cylinder, 131, a movable mould plate, 132, a sealing plate, 14, a main runner, 141, a sub runner, 142, a point gate, 2, an electric telescopic rod, 21, a fixed mould plate, 211, a sealing groove, 212, an exhaust groove, 22 and a top rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a multi-cavity synchronous injection molding uniform distribution structure for an injection mold.
According to the multi-cavity synchronous injection molding uniform distribution structure for the injection mold, a material in a molten state is uniformly conveyed through components such as a main runner 14, a distribution runner 141 and the like which are symmetrically arranged, and the material in the molten state is prevented from being uniformly filled into a plurality of cavities, as shown in fig. 1-4, the multi-cavity synchronous injection molding uniform distribution structure for the injection mold comprises a bottom plate 1, four feet at the top of the bottom plate 1 are fixedly connected with a support post 11, the top of the support post 11 is fixedly connected with a top plate 12, the bottom of the top plate 12 is uniformly and fixedly connected with a cylinder 13, the output end of the cylinder 13 is fixedly connected with a movable template 131, the top of the movable template 131 is in penetrating connection with the main runner 14, two ends of the bottom of the main runner 14 are uniformly and fixedly connected with distribution runners 141, the distribution runner 141 is positioned in the movable template 131, the top of the top plate 12 is in penetrating connection with a positioning ring 121, the tail end of the positioning ring 121 is fixedly connected with the top of the main runner 14, the inner side of a sealing groove 211 of the top of the fixed template 21 is uniformly provided with a cavity, the upper part of the cavity is provided with a vent groove 212 extending to the outer wall of the fixed template 21.
Firstly, the cylinder 13 is started, the output end of the cylinder 13 drives the movable template 131 to move downwards, the sealing plate 132 at the bottom of the movable template 131 is gradually inserted into the sealing groove 211 at the top of the fixed template 21, the sealing connection between the movable template 131 and the fixed template 21 is realized, meanwhile, the sliding blocks at the two ends of the movable template 131 and the fixed template 21 slide in the sliding grooves of the side plates 111, the stable and accurate die assembly process is ensured, the material injection port of the injection molding equipment is in butt joint with the positioning ring 121, the plastic raw material in a molten state enters the main runner 14 through the positioning ring 121, the plastic raw material flows downwards under the action of pressure in the main runner 14 and then uniformly flows into the distribution runners 141 at the two ends of the bottom of the main runner 14, the distribution runners 141 are positioned in the movable template 131, the plastic raw material is further conveyed to the point pouring gate 142 at the tail end, finally, the air in the cavity is injected into the cavity at the inner side of the sealing groove 211 at the top of the fixed template 21 through the point pouring gate 142, and after the plastic raw material is injected into the cavity, the cavity is cooled and solidified for a period of time, and the plastic product is gradually formed.
In the second embodiment, unlike the first embodiment, through the mutual matching of the electric telescopic rod 2 and the ejector rod 22 and other members, in the parting process, the molded material is effectively ejected, the follow-up material taking is convenient, as shown in fig. 5-6, the electric telescopic rod 2 is uniformly and fixedly connected to the top of the bottom plate 1, the fixed template 21 is fixedly connected to the top of the electric telescopic rod 2, two ends of the top of the bottom plate 1 are fixedly connected with the side plates 111, sliding grooves are formed in the inner walls of the side plates 111, the sliding grooves are matched with sliding blocks fixedly connected to the movable template 131 and the outer walls of the two ends of the fixed template 21, the bottom of the movable template 131 is uniformly and fixedly connected with the sealing plates 132, sealing grooves 211 are uniformly formed in the top of the fixed template 21, the movable template 131 and the fixed template 21 are in sealing connection with the sealing grooves 211 through the sealing plates 132, the ejector rod 22 is movably connected in a cavity of the fixed template 21, and the bottom of the ejector rod 22 is fixedly connected with the top of the bottom plate 1.
After the plastic product is cooled and molded, the electric telescopic rod 2 is started, the electric telescopic rod 2 is contracted upwards to drive the fixed die plate 21 to move upwards, so that die opening is realized, in the die opening process, the ejector rod 22 in the cavity of the fixed die plate 21 moves along with the fixed die plate 21, and the bottom of the ejector rod 22 is fixedly connected with the bottom plate 1, so that the relative position is unchanged, the ejector rod 22 can eject the molded plastic product from the cavity, and an operator can conveniently take out the plastic product, and one injection molding production cycle is completed.
The above is the working process of the whole device, and what is not described in detail in this specification belongs to the prior art known to those skilled in the art.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.