Injection mold structure for manufacturing automobile lappets
Technical Field
The utility model relates to the technical field of mold manufacturing, in particular to an injection mold structure for manufacturing an automobile lappet.
Background
With the development of the automobile industry, automobile lappets are becoming an important component of the automobile body, and the manufacturing quality and efficiency thereof are receiving increasing attention. The traditional manufacturing method of the automobile lappet often has the problems of long manufacturing period, high cost, unstable quality and the like. In order to solve these problems, injection molding technology is widely used in the manufacturing process of automobile lappets.
However, the existing injection mold structure still has certain defects in design, such as poor sealing performance, difficult maintenance and the like of the mold, and the problems affect the manufacturing efficiency and quality of the automobile lappet.
Disclosure of utility model
The application provides an injection mold structure for manufacturing an automobile lappet, which improves the efficiency and stability of injection molding.
The application provides an injection mold structure for manufacturing an automobile lappet, which adopts the following technical scheme:
The utility model provides an injection mold structure of manufacturing car lappet, includes mould and lower mould, the mould includes cope match-plate pattern and upper die base on, the lower mould includes lower bolster and die holder, be provided with a plurality of die cavities that are used for injection moulding car lappet on the upper die base, install core and ejection mechanism on the die holder, ejection mechanism is arranged in ejecting car lappet after with the shaping from the die cavity, be provided with guiding mechanism between upper die base and the die holder, be provided with gating system on the upper die base.
Through the adoption of the technical scheme, the injection mold structure for manufacturing the automobile lappet, which is designed by the utility model, is characterized in that when in use, the upper mold base and the lower mold base are connected with each other by the guide mechanism to carry out mold closing, wherein the cavity of the automobile lappet on the upper mold base is matched with the mold core arranged on the lower mold base, the cavity in the mold is poured by the pouring system, the mold of the automobile lappet is finally molded, the molded automobile lappet is ejected out of the cavity by the practical ejection mechanism, and a product is obtained.
Preferably, the core is detachably connected to the lower die holder by a fastener, the fastener including a bolt and a fastening plate, the bolt and the fastening plate being screwed to each other.
Through adopting above-mentioned technical scheme, when using, with core and die holder bottom through bolt and fastening plate threaded connection, both improved the stability of core, simultaneously, be convenient for inspect the core, improved its life.
Preferably, the ejection mechanism comprises an ejector pin hole arranged on the lower die plate and an ejector pin arranged in the ejector pin hole, the ejector pin hole is clamped with the ejector pin, the end part of the ejector pin is slidably connected with an ejector pin, the top of the ejector pin is provided with a pushing structure, the end part of the ejector pin is fixedly connected with an ejector pin fixing plate, and the ejector pin is used for ejecting the molded die.
Preferably, the pushing structure is used for pushing the thimble to move in the ejector rod, the pushing structure comprises a pushing cylinder arranged in the ejector rod, and an output shaft of the pushing cylinder is fixedly connected to the end part of the thimble.
Through adopting above-mentioned technical scheme, when using, utilize the promotion cylinder drive thimble to slide in the ejector pin, carry out ejection to fashioned car lappet.
Through adopting above-mentioned technical scheme, when using, after the casting shaping is accomplished, promote the thimble through pushing the structure and slide in the ejector pin, it is ejecting with fashioned car lappet, ejector pin rigid coupling is on the ejector pin fixed plate, makes the ejector pin keep stable when ejecting.
Preferably, the ejector rod fixing plate is provided with a positioning rod, the lower template is provided with a positioning hole, and the positioning rod is used for being inserted into the positioning hole to help the ejector rod fixing plate to be connected with the lower template.
Through adopting above-mentioned technical scheme, when using, be connected through locating hole and locating lever between ejector pin fixed plate and the lower bolster for ejector pin and thimble on the ejector pin fixed plate match each other with the ejector pin hole better.
Preferably, the pouring system comprises a main runner, a sub runner and a pouring gate, wherein the main runner is connected with a nozzle of the injection molding machine, the sub runner is connected with the main runner and extends to the vicinity of the cavity, and the pouring gate is connected with the sub runner and the cavity.
Through adopting above-mentioned technical scheme, when using, with runner and injection molding machine connection, pour material into the sprue in, the rethread reposition of redundant personnel way enters into near each die cavity and pours.
Preferably, the guide mechanism comprises a guide hole arranged on the lower die holder, a guide column matched with the guide hole is arranged on the upper die holder, the guide column can slide in the guide hole, the guide column is used for die assembly guide of the upper die holder and the lower die holder, and the guide column is obliquely arranged.
Through adopting above-mentioned technical scheme, when using, guiding mechanism mainly is connected through the cooperation of guiding hole and guide post and is realized, and wherein, the guide post slope sets up, and the guide post of being convenient for is more stable after being connected with the guiding hole, and simultaneously, the guide post can slide in the guiding hole, carries out the compound die in aspect.
Preferably, a locking structure is arranged in the guide hole, the locking structure comprises a telescopic spring fixedly connected in the guide hole, one end of the telescopic spring, which is far away from the inner wall of the guide hole, is fixedly connected with a clamping plate, and the clamping plate is used for clamping the end part of the guide column.
Through adopting above-mentioned technical scheme, when using, at the compound die in-process, with guide post and guiding hole connection back, splint in the guiding hole carry out further fastening to the guide post through telescopic spring, are convenient for improve the stability that guide post and guiding hole are connected.
In summary, the application has the following beneficial effects:
1. According to the injection mold structure for manufacturing the automobile lappet, the guide posts which are obliquely arranged are connected with the guide holes, and the injection mold structure is further stable through the locking structure after being connected, so that the mold can be clamped more efficiently and stably, and the stability of injection molding is improved;
2. According to the injection mold structure for manufacturing the automobile lappet, disclosed by the utility model, the mold core is connected by adopting the detachable fastener, so that the maintenance and replacement of the mold are more convenient, the service efficiency of the mold is improved, and the service life of the mold is prolonged;
3. According to the injection mold structure for manufacturing the automobile lappet, disclosed by the utility model, the formed automobile lappet can be stably ejected out of the cavity by arranging the ejection mechanism and the pushing structure, so that the production efficiency and the product quality are improved. Meanwhile, the design of the pouring system also enables the molten plastic to uniformly and rapidly fill the whole cavity, and the quality and the manufacturing efficiency of the product are further improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment;
FIG. 2 is a schematic diagram showing the structure of a lower die in the embodiment;
FIG. 3 is a schematic diagram showing the structure of an upper die in the embodiment;
FIG. 4 is a cross-sectional view in an embodiment;
The reference numerals are 1, an upper die, 2, a lower die, 3, an upper die plate, 4, an upper die holder, 5, a lower die plate, 6, a lower die holder, 7, a die cavity, 8, a core, 9, an ejection mechanism, 91, a pin hole, 92, a pin, 93, a pin, 94, a pushing structure, 941, a pushing cylinder, 95, a pin fixing plate, 10, a guiding mechanism, 101, a guiding hole, 102, a guiding column, 11, a pouring system, 111, a main runner, 112, a shunt channel, 113, a gate, 12, a fastener, 121, a bolt, 122, a fastening plate, 13, a positioning rod, 14, a positioning hole, 15, a locking structure, 151, a telescopic spring, 152 and a clamping plate.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "back", "left", "right", "upper", "lower", "bottom" and "top" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
Example 1
The embodiment discloses an injection mold structure for manufacturing an automobile lappet, referring to fig. 1 to 4, the injection mold structure comprises an upper mold 1 and a lower mold 2, wherein the upper mold 1 comprises an upper mold plate 3 and an upper mold base 4, a cavity 7 for injection molding of the automobile lappet is arranged on the upper mold base 4, the lower mold 2 comprises a lower mold plate 5 and a lower mold base 6, a mold core 8 and an ejection mechanism 9 are arranged on the lower mold base 6, the mold core 8 is detachably connected to the lower mold base 6 through a fastener 12, particularly a bolt 121 and a fastening plate 122, and the design facilitates maintenance and replacement of the mold.
The ejection mechanism 9 is one of key parts of the die structure, and comprises an ejector pin hole 91 arranged on the lower die plate 5 and an ejector pin 92 arranged in the ejector pin hole 91, wherein the ejector pin hole 91 and the ejector pin 92 are connected in a clamping manner, so that stability and accuracy of the ejector pin 92 are ensured, an ejector rod 93 is slidably connected to the end part of the ejector pin 92, and a pushing structure 94 is arranged at the top of the ejector rod 93, in particular to a pushing cylinder 941 arranged in the ejector rod 93. The output shaft of the pushing cylinder 941 is fixedly connected to the end of the ejector pin 92, and the movement of the ejector pin 92 can be precisely controlled by controlling the action of the pushing cylinder 941, so that the formed automobile lappet is stably ejected out of the cavity 7.
In order to further improve the stability of the ejection mechanism 9, the end of the ejector rod 93 is vertically and fixedly connected with an ejector rod 93 fixing plate. Meanwhile, the positioning rod 13 is further arranged on the fixing plate of the ejector rod 93, the positioning holes 14 are correspondingly formed in the lower die plate 5, the positioning rod 13 is inserted into the positioning holes 14, accurate connection between the fixing plate of the ejector rod 93 and the lower die plate 5 is ensured, and the precision and stability of the ejection mechanism 9 are further improved.
The gating system 11 includes a primary runner 111, a shunt runner 112, and a gate 113. The main runner 111 is connected to a nozzle of the injection molding machine, the branch runner 112 is connected to the main runner 111 and extends to the vicinity of the cavity 7, and the gate 113 connects the branch runner 112 and the cavity 7. In order to ensure that the molten plastic can uniformly fill the entire cavity 7, the position and shape of the gate 113 are carefully designed according to the shape and size of the automobile leaf plate.
The implementation principle of embodiment 1 is that in the injection molding process, molten plastic enters the main runner 111 through the nozzle of the injection molding machine, is uniformly distributed to each gate 113 through the sub-runners 112, and finally enters the cavity 7 through the gate 113, and the position and the shape of the gate 113 are carefully designed, so that the molten plastic can uniformly and rapidly fill the whole cavity 7, and the problem of product quality caused by uneven filling is avoided. This design further improves the manufacturing efficiency and quality of the product. When the molded automobile lappet needs to be taken out, the pushing cylinder 941 is controlled to drive the ejector pin 92 to slide in the ejector pin 93, so that the automobile lappet is ejected out of the cavity 7. The whole process is stable and reliable, and the production efficiency and the product quality are improved.
Example 2
Referring to fig. 2 and 3, the present embodiment is different in the design of the guide mechanism 10. On the basis of embodiment 1, a guide mechanism 10 is added between the upper die holder 4 and the lower die holder 6. The guide mechanism 10 includes a guide hole 101 provided on the lower die holder 6 and a guide post 102 provided on the upper die holder 4. The guide post 102 is matched with the guide hole 101 and can slide in the guide hole 101. The design provides accurate guidance for the die assembly process of the upper die 1 and the lower die 2, and ensures the manufacturing precision of the die.
To further improve the stability and accuracy of the guidance, the guide posts 102 are inclined. Meanwhile, a locking structure 15 is also provided in the guide hole 101. The locking structure 15 comprises a telescopic spring 151 fixedly connected in the guide hole 101 and a clamping plate 152 fixedly connected with one end, far away from the inner wall of the guide hole 101, of the telescopic spring 151, wherein the clamping plate 152 is used for clamping the end part of the guide post 102, so that the stability of the guide post 102 in the die assembly process is ensured.
The embodiment 2 is implemented according to the principle that the upper die holder 4 and the lower die holder 6 are precisely aligned by the cooperation of the guide mechanism 10 and the locking mechanism 15 during the die assembly process. When the guide post 102 is inserted into the guide hole 101, the extension spring 151 is in a compressed state, and the clamping plate 152 clamps the end of the guide post 102. As the upper die 1 and the lower die 2 are gradually closed, the guide post 102 slides in the guide hole 101 until the die is completely closed. The design improves the precision and stability of die assembly, and further ensures the manufacturing quality of products.
The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.