CN221873043U - A plastic mold for ejecting and taking out materials - Google Patents

Abstract

Compared with the prior art, the plastic die has the following beneficial effects: through setting up locating piece two and constant head tank two, can ensure that public template and female template can align when the butt joint, through setting up locating piece one and constant head tank one, can ensure that public mould benevolence and female mould benevolence can align when the butt joint, and then make the mold core can be accurate with the die cavity alignment, help promoting the production quality of product, through setting up ejection for the shaping product is when being ejected, can be synchronous even ejection force and move, and then avoided causing ejection force inhomogeneous, partial region is ejecting not enough or ejecting excessively, has guaranteed the homogeneity and the uniformity of product.

Description

A plastic mold for ejecting and taking out materials

Technical Field

The utility model belongs to the technical field of molds, in particular to a plastic mold for ejecting and taking materials.

Background Art

A plastic mold is a tool used to manufacture plastic products. It is mainly composed of two parts: a mold core and a mold cavity. The mold core is the internal contour of the spatial shape of the plastic product, while the mold cavity is the external shape of the plastic product. Through the plastic mold, the heated and molten plastic raw material can be injected into the mold and taken out after cooling and solidification to obtain a plastic product of the desired shape. Plastic molds play a vital role in the plastic processing industry, affecting the quality, production efficiency and cost control of plastic products.

During the ejection and material collection process of some plastic molds, if the mold design is unreasonable or the manufacturing process is improper, the plastic products may be deformed during the material collection process, affecting the product quality. If the mold ejection system is improperly designed, it is easy to cause uneven ejection force, insufficient ejection or excessive ejection in some areas, affecting the uniformity and consistency of the product. Therefore, we hope to design a plastic mold with a new structure to solve this problem.

Utility Model Content

In view of the deficiencies in the prior art, the utility model aims to provide a plastic mold for ejecting and taking out materials, so as to solve the problems raised in the above-mentioned background technology.

The utility model is realized by the following technical scheme: a plastic mold for ejection and material extraction, comprising: a lower mold assembly and an upper mold assembly, an upper mold assembly is movably installed above the upper mold assembly, and the upper mold assembly comprises an ejector, a lower fixed plate, a male mold plate and a male mold core;

A male mold plate is movably mounted on the upper side of the lower fixed plate through a mold foot, an ejector is movably mounted in the middle of the lower fixed plate, the ejector is placed on the lower side of the male mold plate, and a male mold core is fixed on the upper side of the male mold plate;

The upper mold assembly comprises an upper fixed plate, a mother mold plate, and a mother mold core. The mother mold plate is fixed to the lower surface of the upper fixed plate, and the mother mold core is installed in the middle of the lower surface of the mother mold plate.

As a preferred embodiment, the four corners of the male template are respectively slidably connected to the upper side of a guide column, and the lower end of each guide column is fixed at the end of the upper end of the mold foot. A positioning block 2 is respectively installed in the middle of the front side, the middle of the rear side, the middle of the left side and the middle of the right side of the upper surface of the male template. The positioning block 2 cooperates with the positioning groove 2 to ensure that the male template and the female template can be aligned when docking, which helps to improve the production quality of the product.

As a preferred embodiment, the upper surface of the male mold core is rectangular and has four mold cores installed thereon, and the four corners of the male mold core are respectively recessed downward to form a positioning groove.

As a preferred embodiment, the middle of the front side, the middle of the rear side, the middle of the left side and the middle of the right side of the lower side of the mother template are respectively recessed upward to form a second positioning groove, each of which is equipped with a recessed fastener, and the second positioning block is movably inserted inside the recessed fastener.

As a preferred embodiment, the lower surface of the female mold core is provided with a plurality of mold cavities, the number and distribution positions of the mold cavities match the number and distribution positions of the mold cores, and a positioning block 1 is respectively provided at the four corners of the lower surface of the female mold core, and the positioning block 1 is movably inserted in the positioning groove 1;

The number and distribution position of the positioning block 1 match the number and distribution position of the positioning groove 1. The positioning block 1 cooperates with the positioning groove 1 to ensure that the male mold core and the female mold core can be aligned when docking, so that the mold core can be accurately aligned with the mold cavity, which helps to improve the production quality of the product.

As a preferred embodiment, the ejector member includes a buffer column, a positioning rod, a support column, an ejector rod group, a lower ejector plate and an upper ejector plate, the upper ejector plate is movably mounted on the upper side of the lower ejector plate, and a positioning rod is slidably mounted on the front and rear sides of the upper ejector plate and the lower ejector plate, respectively, and the lower end of the positioning rod is fixedly connected to the lower fixed plate.

As a preferred embodiment, a buffer column is fixed to the left and right sides of the front end and the left and right sides of the rear end of the upper ejection plate, respectively, and the buffer column includes a guide rod and a spring, and the spring is sleeved on the outside of the lower end of the guide rod;

Three support columns distributed at equal intervals are slidably mounted on the left and right sides of the upper ejection plate and the lower ejection plate, respectively, and the lower ends of the plurality of support columns are fixedly connected to the lower fixed plate.

As a preferred embodiment, an ejector rod group is fixed to the left front side, the rear front side, the left rear side and the rear right side of the upper ejector plate, respectively, each of the ejector rod groups includes a peripheral ejector rod group and a central ejector rod group, the peripheral ejector rod group includes four independent ejector pins 1, the four ejector pins 1 are distributed in a rectangular shape, and the upper ends of the four ejector pins 1 upwardly penetrate the male mold plate, the male mold core and the mold core, and the four ejector pins 1 are respectively slidably connected to the front side, the rear side, the left side and the right side of the edge of the mold core;

The central ejector rod group includes four independent ejector pins 2, which are distributed in a rectangular shape, and the upper ends of the four ejector pins 2 upwardly penetrate the male mold plate, the male mold core and the mold core, and the four ejector pins 2 are respectively slidably connected to the left front side, the left rear side, the right rear side and the right front side of the center of the mold core.

After adopting the above technical solution, the beneficial effects of the utility model are as follows: by setting the second positioning block and the second positioning groove, it is possible to ensure that the male mold plate and the female mold plate can be aligned when docking, and by setting the first positioning block and the first positioning groove, it is possible to ensure that the male mold core and the female mold core can be aligned when docking, so that the mold core can be accurately aligned with the mold cavity, which helps to improve the production quality of the product;

By setting the ejector, in actual use, when it is necessary to demold the already formed product, the upper mold assembly is separated from the lower mold assembly, and then the external power equipment (pneumatic or hydraulic power equipment, which can be selected according to actual use requirements, is not limited to a certain model or type, as long as it can drive the normal movement of the entire mold) on the front and rear sides between the upper mold assembly and the lower mold assembly is started. Under the push of the external power equipment, the male mold plate follows and moves up a certain distance under the guidance of the guide column. The upward movement of the male mold plate causes the male mold core to drive the mold core to move up, thereby separating the formed product on the mold core from the upper end of the ejector rod group. Subsequently, the external power equipment pushes the lower ejector plate and the upper ejector plate on the lower fixed plate upward synchronously, and then the external power equipment pushes the upper ejector plate alone. The plate (the lower end of the ejector rod group is fixedly connected to the upper ejector plate, and is not connected to the lower ejector plate). During the upward movement of the upper ejector plate, the four ejector pins 1 of the peripheral ejector rod group of the peripheral ejector rod group respectively eject the front side, rear side, left side and right side of the edge of the molded product. At the same time, the four ejector pins 2 of the central ejector rod group eject the left front side, right front side, left rear side and right rear side of the center of the molded product. The four ejector pins 1 and the four ejector pins 2 eject the molded product from eight equally divided directions as well as the center and edge positions, which greatly improves the uniform distribution of the ejection force, so that the molded product can be simultaneously ejected by uniform ejection force when being ejected, thereby avoiding uneven ejection force, insufficient ejection or excessive ejection in some areas, and ensuring the uniformity and consistency of the product.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

FIG1 is a schematic diagram of the overall structure of a plastic mold for ejecting and taking materials according to the utility model.

FIG. 2 is a schematic diagram of the structure of an upper mold assembly and a lower mold assembly of a plastic mold for ejecting and taking materials according to the utility model.

FIG. 3 is a schematic diagram of an ejector structure of a plastic mold for ejecting and taking materials according to the utility model.

FIG. 4 is a schematic diagram of the connection between a mold core and an ejector rod assembly of a plastic mold for ejecting and taking materials according to the utility model.

In the figure, 100-lower mold assembly, 110-lower fixed plate, 120-ejector, 121-buffer column, 122-positioning rod, 123-support column, 124-ejector rod group, 125-lower ejector plate, 126-upper ejector plate, 130-male mold plate, 131-guide column, 132-positioning block 2, 140-male mold core, 141-mold core, 142-positioning groove 1;

200 - upper mold assembly, 210 - upper fixing plate, 220 - female mold plate, 221 - second positioning groove, 230 - female mold core, 231 - first positioning block, 232 - mold cavity.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to FIG. 1 to FIG. 4 , the utility model provides a technical solution: a plastic mold for ejection and material extraction, comprising: a lower mold assembly 100 and an upper mold assembly 200, an upper mold assembly 200 is movably installed above the upper mold assembly 200, and the upper mold assembly 200 comprises an ejector 120, a lower fixed plate 110, a male mold plate 130 and a male mold core 140;

A male mold plate 130 is movably mounted on the upper side of the lower fixed plate 110 through a mold foot, and an ejector 120 is movably mounted in the middle of the lower fixed plate 110. The ejector 120 is placed on the lower side of the male mold plate 130, and a male mold core 140 is fixed on the upper side of the male mold plate 130;

The upper mold assembly 200 includes an upper fixed plate 210 , a female mold plate 220 , and a female mold core 230 . The female mold plate 220 is fixed to the lower surface of the upper fixed plate 210 , and the female mold core 230 is installed in the middle of the lower surface of the female mold plate 220 .

Please refer to Figures 1 to 3. The four corners of the male template 130 are respectively slidably connected to the upper side of a guide column 131. The lower end of each guide column 131 is fixed to the end of the upper end of the mold foot. A positioning block 132 is installed in the middle of the front side, the middle of the rear side, the middle of the left side and the middle of the right side of the upper surface of the male template 130. The positioning block 132 cooperates with the positioning groove 221 to ensure that the male template 130 and the female template 220 can be aligned when docking, which helps to improve the production quality of the product.

The upper surface of the male mold core 140 is rectangular and is equipped with four mold cores 141. The four corners of the male mold core 140 are respectively recessed downward to form a positioning groove 142.

The middle of the front side, the middle of the rear side, the middle of the left side and the middle of the right side of the lower side of the mother template 220 are respectively recessed upward to form a second positioning groove 221, and a recessed fastener is installed in each of the second positioning grooves 221, and the second positioning block 132 is movably inserted inside the recessed fastener.

The lower surface of the female mold core 230 is provided with a plurality of mold cavities 232, the number and distribution positions of the mold cavities 232 are matched with the number and distribution positions of the mold core 141, and a positioning block 231 is respectively provided at the four corners of the lower surface of the female mold core 230, and the positioning block 231 is movably inserted in the positioning groove 142;

The number and distribution positions of the positioning blocks 231 match the number and distribution positions of the positioning grooves 142. The positioning blocks 231 cooperate with the positioning grooves 142 to ensure that the male mold core 140 and the female mold core 230 can be aligned when docking, so that the mold core 141 can be accurately aligned with the mold cavity 232, which helps to improve the production quality of the product.

As the first embodiment of the utility model, by setting the positioning block 2 132 and the positioning groove 221, it can ensure that the male template 130 and the female template 220 can be aligned when docking, and by setting the positioning block 1 231 and the positioning groove 1 142, it can ensure that the male mold core 140 and the female mold core 230 can be aligned when docking, so that the mold core 141 can be accurately aligned with the mold cavity 232, which helps to improve the production quality of the product.

Please refer to Figures 2 to 3, the ejector 120 includes a buffer column 121, a positioning rod 122, a support column 123, an ejector rod group 124, a lower ejector plate 125 and an upper ejector plate 126. The upper ejector plate 126 is movably installed on the upper side of the lower ejector plate 125, and a positioning rod 122 is slidably installed on the front and rear sides of the upper ejector plate 126 and the lower ejector plate 125, respectively. The lower end of the positioning rod 122 is fixedly connected to the lower fixed plate 110.

A buffer column 121 is fixed to the left and right sides of the front end and the left and right sides of the rear end of the upper ejection plate 126, respectively. The buffer column 121 includes a guide rod and a spring, and the spring is sleeved on the outside of the lower end of the guide rod;

Three support columns 123 distributed at equal intervals are slidably mounted on the left and right sides of the upper ejection plate 126 and the lower ejection plate 125 , respectively. The lower ends of the plurality of support columns 123 are fixedly connected to the lower fixing plate 110 .

As a second embodiment of the utility model, in actual use, when it is necessary to demold the molded product, the upper mold assembly 200 is separated from the lower mold assembly 100, and then the external power equipment (pneumatic or hydraulic power equipment, which can be selected according to actual use requirements, is not limited to a certain model or type, as long as it can drive the entire mold to move normally) on the front and rear sides between the upper mold assembly 200 and the lower mold assembly 100 is started. Under the push of the external power equipment, the male mold plate 130 moves up a certain distance under the guidance of the guide column 131, and the male mold plate 1 30 moves upward, so that the male mold core 140 drives the mold core 141 to move upward, thereby separating the molded product on the mold core 141 from the upper end of the ejector rod group 124, and then the external power equipment pushes the lower ejector plate 125 and the upper ejector plate 126 on the lower fixed plate 110 upward synchronously, and then the external power equipment pushes the upper ejector plate 126 alone (the lower end of the ejector rod group 124 is fixedly connected to the upper ejector plate 126, and is not connected to the lower ejector plate 125), and the upper ejector plate 126 drives the ejector rod group 124 thereon to eject the molded product on the mold core 141, thus completing the ejection and material removal action.

Please refer to FIG. 3 and FIG. 4 , an ejector rod group 124 is fixed to the left front side, the rear front side, the left rear side and the rear right side of the upper ejector plate 126, respectively. Each ejector rod group 124 includes a peripheral ejector rod group and a central ejector rod group. The peripheral ejector rod group includes four independent ejector pins 1, which are distributed in a rectangular shape, and the upper ends of the four ejector pins 1 upwardly penetrate the male mold plate 130, the male mold core 140 and the mold core 141, and the four ejector pins 1 are respectively slidably connected to the front side, the rear side, the left side and the right side of the edge of the mold core 141;

The central ejector rod group includes four independent ejector pins 2, which are distributed in a rectangular shape, and the upper ends of the four ejector pins 2 upwardly penetrate the male mold plate 130, the male mold core 140 and the mold core 141, and the four ejector pins 2 are respectively slidably connected to the left front side, left rear side, right rear side and right front side of the center of the mold core 141.

As a third embodiment of the present utility model, based on the above-mentioned second embodiment, during the upward movement of the upper ejector plate 126, the four ejector pins 1 of the peripheral ejector rod group 124 respectively push against the front side, rear side, left side and right side of the edge of the molded product. At the same time, the four ejector pins 2 of the central ejector rod group push against the left front side, right front side, left rear side and right rear side of the center of the molded product. The four ejector pins 1 and the four ejector pins 2 push against the molded product from eight equally divided directions and the center and edge positions, which greatly improves the uniform distribution of the ejection force, so that the molded product can be pushed by the uniform ejection force synchronously when being ejected, thereby avoiding uneven ejection force, insufficient ejection or excessive ejection in some areas, and ensuring the uniformity and consistency of the product.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A plastic mold for ejection and reclaiming, comprising: the device is characterized in that an upper die assembly (200) is movably arranged above the upper die assembly (200), and the upper die assembly (200) comprises an ejection member (120), a lower fixing plate (110), a male die plate (130) and a male die core (140);

The upper side of the lower fixing plate (110) is movably provided with a male die plate (130) through die legs, the middle of the lower fixing plate (110) is movably provided with an ejector piece (120), the ejector piece (120) is arranged on the lower side of the male die plate (130), and a male die core (140) is fixed on the upper side of the male die plate (130);

The upper die assembly (200) comprises an upper fixing plate (210), a female die plate (220) and a female die core (230), wherein the lower surface of the upper fixing plate (210) is fixedly provided with the female die plate (220), and the female die core (230) is arranged in the middle of the lower surface of the female die plate (220).

2. An ejector reclaim plastic mold of claim 1, wherein: four corners of the male template (130) are respectively connected with the upper sides of the guide posts (131) in a sliding mode, the lower end of each guide post (131) is fixed at the tail end of the upper end of a die leg, and a second positioning block (132) is respectively arranged in the middle of the front side, the middle of the rear side, the middle of the left side and the middle of the right side of the upper surface of the male template (130).

3. An ejector reclaim plastic mold of claim 2, wherein: four mold cores (141) are rectangular on the upper surface of the male mold core (140), and four corners of the male mold core (140) are respectively recessed downwards to form a positioning groove I (142).

4. A plastic ejector reclaim mold according to claim 3, wherein: the lower side of the female template (220) is provided with a front middle part, a rear middle part, a left middle part and a right middle part which are respectively recessed upwards to form a second positioning groove (221), each second positioning groove (221) is internally provided with a concave fastener, and the second positioning block (132) is movably inserted into the concave fastener.

5. An ejector reclaim plastic mold of claim 4, wherein: the lower surface of the female die core (230) is provided with a plurality of die cavities (232), the number and the distribution positions of the die cavities (232) are matched with those of the die cores (141), four corners of the lower surface of the female die core (230) are respectively provided with a first positioning block (231), and the first positioning blocks (231) are movably inserted into the first positioning grooves (142);

the number and the distribution positions of the first positioning blocks (231) are matched with those of the first positioning grooves (142).

6. An ejector reclaim plastic mold of claim 1, wherein: the ejector piece (120) comprises a buffer column (121), a positioning rod (122), a supporting column (123), an ejector rod group (124), a lower ejector plate (125) and an upper ejector plate (126), wherein the upper ejector plate (126) is movably arranged on the upper side of the lower ejector plate (125), the positioning rod (122) is slidably arranged on the front side and the rear side of the upper ejector plate (126) and the front side and the rear side of the lower ejector plate (125) respectively, and the lower end of the positioning rod (122) is fixedly connected with the lower fixing plate (110).

7. An ejector reclaim plastic mold as defined in claim 6, wherein: the left side and the right side of the front end of the upper ejection plate (126) and the left side and the right side of the rear end of the upper ejection plate are respectively fixed with a buffer column (121), the buffer column (121) comprises a guide rod and a spring, and the spring is sleeved outside the lower end of the guide rod;

Three equally spaced support columns (123) are respectively and slidably arranged on the left side and the right side of the upper ejector plate (126) and the lower ejector plate (125), and the lower ends of a plurality of the support columns (123) are fixedly connected with the lower fixing plate (110).

8. An ejector reclaim plastic mold of claim 7, wherein: the left front side, the rear front side, the left rear side and the rear right side of the upper ejector plate (126) are respectively fixed with an ejector rod group (124), each ejector rod group (124) comprises a peripheral ejector rod group and a central ejector rod group, each peripheral ejector rod group comprises four independent ejector pins I, the four ejector pins I are in rectangular distribution, the upper ends of the four ejector pins I upwards penetrate through a male die plate (130), a male die core (140) and a die core (141), and the four ejector pins I are respectively connected with the front side, the front rear side, the front left side and the front right side of the edge of the die core (141);

The center ejector rod group comprises four independent ejector pins II, wherein the four ejector pins II are in rectangular distribution, the upper ends of the four ejector pins II upwards penetrate through the male die plate (130), the male die core (140) and the die core (141), and the four ejector pins II are respectively connected with the left front side, the left rear side, the right rear side and the right front side of the center of the die core (141).