Injection mold for fuel vehicle wave plate
Technical Field
The utility model belongs to the technical field of molds, and particularly relates to an injection mold for a wave plate of a fuel vehicle.
Background
With the rapid development of the automobile industry and the increasing market demand, fuel vehicle breakwater is an important component of an automobile fuel tank system, and the performance and the quality of the fuel vehicle breakwater are directly related to the safety and the reliability of vehicles. Fuel truck breakwater typically has thin-walled, deep-cavity structural features that make it challenging to mold during injection molding, particularly during demolding.
Conventional fuel truck breakwater injection molds typically employ a single ejection mechanism for stripping. However, due to the fact that the wave plate is complex in structure and high in demolding resistance, smooth demolding of the product is difficult to ensure by a single ejection mechanism, the product is often deformed and damaged, and accordingly quality and service life of the product are affected.
In the design of injection molds in the current market, an upper mold base and a lower mold base are generally adopted to match an upper mold core and a lower mold core for injection molding. Although this structure can meet the demoulding requirement of general products to a certain extent, the demoulding effect is not ideal for the fuel vehicle wave plate with a thin wall and deep cavity structure. When the traditional die is demolded, the ejector plate of the lower die is usually relied on for ejection, and due to the lack of effective support and ejection on the upper surface of the product, incomplete demolding or surface damage of the product is often caused.
In order to improve the demoulding quality of the fuel vehicle breakwater, an injection mould capable of providing more uniform and stable ejection force in the demoulding process needs to be developed. In the prior art, the demolding effect is improved by increasing the number of ejection mechanisms or improving the structure of the ejection mechanisms, but the improvement schemes still have certain limitations, and the difficult problem of demolding of thin-wall and deep-cavity products cannot be thoroughly solved.
Disclosure of utility model
In order to solve the problems, the utility model provides the injection mold for the wave plate of the fuel vehicle, which aims to realize effective ejection of the upper surface of a product by arranging a front mold and a rear mold double ejection mechanism of an upper mold and a lower mold and particularly adding a second ejector plate driving mechanism, further improve the demolding quality, ensure that the product is not damaged in the demolding process, and improve the molding quality and the production efficiency of the product.
The technical scheme provided by the utility model is as follows:
The injection mold comprises an upper mold base, a lower mold base, an upper mold plate, a lower mold plate, an upper mold core and a lower mold core, wherein a first ejector plate is arranged between the lower mold base and the lower mold plate, and a second ejector plate is arranged between the upper mold base and the upper mold plate;
The second thimble plate driving mechanism comprises a hook plate arranged on the side surface of the upper die holder, a pull plate arranged on the side surface of the lower die plate and a sliding block horizontally sliding on the side surface of the second thimble plate, the top of the pull plate is provided with a first bulge extending to one side of the upper die holder, the outer side of the bottom of the sliding block is provided with a first inclined plane, the inner side of the side surface of the hook plate is provided with a second bulge, and the second bulge is provided with a second inclined plane matched with the first inclined plane;
The lower end of the first bulge is abutted against the upper part of the sliding block, the first bulge limits the second ejector plate to move upwards along with the upper die holder, and when a first inclined plane on the sliding block is abutted against the second inclined plane, the sliding block slides towards the inner side of the second ejector plate.
In some embodiments, the second thimble board side is opened there is horizontal spout, and the slider passes through the spacing setting of screw in the spout, and the length of spout equals the length of slider, and when the slider was contradicted with the screw tip, the slider protrusion was in second thimble board side.
In some embodiments, a spring is disposed between the slider and the inner wall of the chute.
In some embodiments, the inner side of the pulling plate is provided with a sliding rail, and the hook plate is arranged in the sliding rail in a sliding way.
In some embodiments, the first protrusion is provided with a third ramp on the top inside thereof that mates with the first ramp.
In summary, the beneficial effects of the utility model are as follows:
(1) The utility model is provided with the upper and lower front and rear die double ejection mechanisms, the rear die is ejected conventionally, and the second ejector plate at the front die increased position can eject the product from the upper part of the product through the second ejector plate driving mechanism, so that the demolding quality is improved.
(2) The sliding rail limits the hook plate in the horizontal direction, and the hook plate, the pull plate and the sliding block are positioned on the same vertical surface, so that the accuracy of pushing the sliding block by the hook plate is ensured.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is a schematic perspective view of a cross-sectional structure of the present utility model;
FIG. 4 is a schematic diagram of a second thimble plate driving mechanism according to the present utility model;
FIG. 5 is a schematic view of a pulling plate according to the present utility model;
FIG. 6 shows the present utility model a structural schematic diagram of the hook plate;
FIG. 7 is a schematic view of a slider structure according to the present utility model;
FIG. 8 is an enlarged view of FIG. 2 at A;
FIG. 9 shows a die of the present utility model schematic structural diagram of injection molding product.
The reference numerals are as follows:
1. The die comprises an upper die holder, a lower die holder, an upper die plate, a lower die plate, an upper die core, a lower die core, a first ejector pin plate, a second ejector pin plate driving mechanism and a product.
81. 82, Screw, 83, spring;
91. Hook plate 92, pull plate 93, slide block 94, first protrusion 95, first inclined plane 96, second protrusion 97, second inclined plane 98, slide rail 99 and third inclined plane.
Detailed Description
The present utility model will be further described in detail with reference to the following examples and drawings for the purpose of enhancing the understanding of the present utility model, which examples are provided for the purpose of illustrating the present utility model only and are not to be construed as limiting the scope of the present utility model.
As shown in fig. 1-9, an injection mold for a wave plate of a fuel truck mainly comprises an upper mold base 1, a lower mold base 2, an upper mold plate 3, a lower mold plate 4, an upper mold core 5 and a lower mold core 6, wherein the upper mold base 1, the upper mold plate 3 and the upper mold core 5 move synchronously, the lower mold base 2, the lower mold plate 4 and the lower mold core 6 are fixed, a product 10 is formed between the upper mold core 5 and the lower mold core 6, the product 10 has the characteristics of thin wall and depth, a second ejector plate 8 is arranged between the upper mold base 1 and the upper mold plate 3, a first ejector plate 7 is arranged between the lower mold base 2 and the lower mold plate 4, a gap is formed between the upper mold base 1 and the upper mold plate 3 for the second ejector plate 8 to move up and down along a guide pillar, a gap is formed between the lower mold base 2 and the lower mold plate 4 for the first ejector plate 7 to move up and down along the guide pillar, the upper end surface of the first ejector plate 7 is provided with an ejector pin, the first ejector pin 7 moves from the lower ejector pin 10 in the lower mold core 6, the lower end surface of the second ejector plate 8 is provided with a downward ejector pin 8, and the second ejector pin 8 moves from the upper ejector pin 8 to the lower ejector pin 10 in the upper mold core through the upper mold core 10.
The first ejector plate 7 is lifted upwards through an ejector cylinder at the bottom of the injection molding machine to drive lifting, when the die is opened, the driving mechanism pulls the upper die holder 1 to move upwards, the front die and the rear die move relatively, the second ejector plate 8 drives the relative upper die plate 3 to descend through the second ejector plate driving mechanism 9, and the product 10 is ejected from the upper die core 5.
Specifically, the second ejector plate driving mechanism 9 is arranged at two sides of the die, a plurality of groups can be arranged according to the size of the die, four groups of second ejector plate driving mechanisms 9 are arranged in the embodiment, each group of second ejector plate driving mechanisms 9 comprises a hook plate 91, a pull plate 92 and a sliding block 93, the upper ends of the hook plates 91 are fixed on the side face of the upper die base 1 through screws, a second bulge 96 is arranged at one side, close to the second ejector plate 8, of the lower ends of the hook plates 91, the lower ends of the pull plates 92 are fixed on the side face of the lower die plate 4 through screws, a first bulge 94 extending towards one side of the upper die base 1 is arranged at the top of the pull plate 92, the sliding block 93 is horizontally arranged on the side face of the second ejector plate 8 in a sliding mode, the lower end face of the first bulge 94 is in contact with the upper surface of the sliding block 93, the first bulge 94 is used for limiting the second ejector plate 8 to move upwards along the upper die base 1 in a certain stroke, a first inclined surface 95 is arranged at the outer side of the bottom of the sliding block 93, and a second inclined surface 97 matched with the first inclined surface 95 is arranged on the second bulge 96.
When the die is opened, the driving mechanism pulls the upper die holder 1 to move upwards, the hook plate 91 moves upwards along with the upper die holder 1, and the ejector pins on the second ejector plate 8 move downwards relative to the upper die plate 3 and the upper die core 5 due to the fact that the pull plate 91 limits the upward movement of the second ejector plate 8, so that the product 10 can be ejected out from the upper part of the product 10. The upper die holder 1 continues to move upwards until the first inclined surface 95 on the sliding block 93 abuts against the second inclined surface 97, the hook plate 91 pushes the sliding block 93 to slide towards the inner side of the second ejector plate 8, at this time, the sliding block 93 and the pull plate 91 are not interfered any more, and die sinking can be continued. And when the mold is opened, the first ejector pin plate 7 is continuously lifted by the ejector cylinder at the top of the injection molding machine, and the product 10 is ejected from the lower part of the product 10.
According to the utility model, the upper and lower front and rear mold double ejection mechanisms are arranged, the rear mold is ejected conventionally, and the second ejector plate 8 at the front mold increased position can eject the product 10 from the upper part of the product 10 through the second ejector plate driving mechanism 9, so that the demolding quality is improved.
In a preferred embodiment, the side of the second ejector plate 8 is provided with a horizontal sliding groove 81, the sliding groove 93 is limited in the sliding groove 81 by a screw 82, the length of the sliding groove 81 is equal to that of the sliding block 93, and when the sliding block 93 abuts against the end of the screw 82, the sliding block 93 protrudes out of the side of the second ejector plate 8.
Specifically, the screw 82 passes through the slider 93, the slider 93 is fixed on the second ejector plate 8 in a limiting manner, the slider 93 can slide freely on the screw 82, the length of the sliding chute 81 is equal to that of the slider 93, the slider 93 can be completely embedded into the second ejector plate 8, and a spring 83 is arranged between the slider 93 and the inner wall of the sliding chute 81 in order to realize automatic resetting of the slider 93.
As a further optimized embodiment, the sliding rail 98 is arranged on the inner side of the pull plate 92, and the hook plate 91 is arranged in the sliding rail 98 in a sliding manner. The slide rail 98 limits the hook plate 91 in the horizontal direction, and the hook plate 91, the pull plate 92 and the sliding block 93 are positioned on the same vertical surface, so that the accuracy of pushing the sliding block 93 by the hook plate 91 is ensured.
Further, a third inclined surface 99 is provided on the top of the inner side of the first protrusion 94, which cooperates with the first inclined surface 95. When the mold is closed, the third inclined surface 99 on the pull plate 92 is abutted against the first inclined surface 95 on the sliding block 93, and pushes the sliding block 93 to slide towards the inside of the second ejector plate 8 until the sliding block 93 moves to the lower part of the first protrusion 94, the sliding block 93 ejects under the action of the spring 83, and at this time, the mold closing is completed, and the upper end surface of the sliding block 93 is abutted against the lower end surface of the first protrusion 94.
It should be noted that, in the drawings or the text of the specification, implementations not shown or described are all forms known to those of ordinary skill in the art, and not described in detail. Furthermore, the above definitions of the elements and methods are not limited to the specific structures, shapes or modes mentioned in the embodiments.
It should also be noted that examples of parameters that include particular values may be provided herein, but that these parameters need not be exactly equal to the corresponding values, but may approximate the corresponding values within acceptable error margins or design constraints. The directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., are merely directions with reference to the drawings, and are not intended to limit the scope of the present application.
While the foregoing description illustrates and describes the preferred embodiments of the present utility model, as noted above, it is to be understood that the utility model is not limited to the forms disclosed herein but is not to be construed as excluding other embodiments, and that various other combinations, modifications and environments are possible and may be made within the scope of the inventive concepts described herein, either by way of the foregoing teachings or by those of skill or knowledge of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.