CN222271144U - Ejection mechanism of injection mold - Google Patents
Ejection mechanism of injection mold Download PDFInfo
- Publication number
- CN222271144U CN222271144U CN202421085685.XU CN202421085685U CN222271144U CN 222271144 U CN222271144 U CN 222271144U CN 202421085685 U CN202421085685 U CN 202421085685U CN 222271144 U CN222271144 U CN 222271144U
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- fixedly connected
- mold
- rod
- block
- ejection mechanism
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- 238000002347 injection Methods 0.000 title claims abstract description 25
- 239000007924 injection Substances 0.000 title claims abstract description 25
- 229920003023 plastic Polymers 0.000 description 10
- 239000004033 plastic Substances 0.000 description 10
- 238000001746 injection moulding Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses an ejection mechanism of an injection mold, which belongs to the technical field of injection molds and comprises a bottom plate, wherein the top surface of the bottom plate is fixedly connected with a support frame, the top surface of the bottom plate is fixedly connected with a plurality of struts, the top ends of the struts are fixedly connected with a lower mold, a hydraulic rod is fixedly installed on the support frame, and the output end of the hydraulic rod extends to the bottom of the support frame and is fixedly connected with an upper mold. In the utility model, when the product in the lower die is demolded, the upper die is utilized to move upwards to drive the U-shaped frame, the U-shaped frame is utilized to drive the pull rod, the sliding block, the lower ejector rod and the lower ejector block to move upwards, the lower ejector block is utilized to jack up and demold the product in the lower die, when the upper die is moved downwards, the U-shaped frame drives the pull rod and the sliding block to move downwards, the sliding block is utilized to pull the lower ejector rod, so that the lower ejector block is reset into the lower notch, the function of resetting the lower ejector block is realized, and the practicability is good.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to an ejection mechanism of an injection mold.
Background
The injection mold is a tool for producing plastic products, which is also a tool for endowing the plastic products with complete structures and precise dimensions, the injection molding is a processing method used for mass production of parts with complex shapes, specifically, the injection mold is used for injecting heated and melted plastics into a mold cavity by an injection molding machine under high pressure and obtaining a formed product after cooling and solidifying, and an ejection structure is usually arranged on the injection mold for facilitating the demolding of the injection molding.
The utility model discloses an ejection mechanism of a special-shaped plastic injection mold, which comprises a bottom plate, a lower mold, a top plate and an ejection hole, wherein two ends of the top surface of the bottom plate are fixedly provided with a first frame, a hydraulic cylinder is installed in the middle of the top end of the first frame in a penetrating manner, the output end of the hydraulic cylinder is connected with the top plate, an upper mold is arranged in the middle of the bottom surface of the top plate, the upper mold is embedded in the lower mold, the lower mold is installed in the middle of the top surface of the bottom plate in a connecting manner through a supporting rod, sliding sleeves are fixedly arranged at two ends of the top plate, sliding rods are inserted in the sliding sleeves, and are fixed in a supporting seat.
However, the above-mentioned patent has the disadvantages that the jack is not convenient to reset after being jacked by the second frame, and the molded product is easy to be connected with the upper die during the demolding, and the product connected with the upper die is not convenient to be demolded. For this purpose we propose an ejection mechanism for injection moulds.
Disclosure of utility model
Aiming at the problems in the prior art, the utility model aims to provide an ejection mechanism of an injection mold.
In order to solve the problems, the utility model adopts the following technical scheme:
The utility model provides an ejection mechanism of injection mold, includes the bottom plate, the top surface fixedly connected with support frame of bottom plate, the top surface fixedly connected with of bottom plate a plurality of branches, a plurality of the top fixedly connected with lower mould of branch, fixedly mounted has the hydraulic stem on the support frame, the output of hydraulic stem extends to the bottom of support frame and fixedly connected with go up the mould, the bottom of going up the mould extends to the inner chamber of lower mould, upward be provided with demoulding mechanism on the mould, lower notch has been seted up to the bottom surface of lower mould inner chamber, the inner chamber cover of lower notch is equipped with down the kicking block, the bottom fixedly connected with lower ejector pin of lower kicking block, the bottom activity of lower ejector pin cup joints to the bottom of lower mould, the spout has been seted up to the bottom surface of lower ejector pin, the inner chamber activity of spout has cup jointed the slider, the bottom fixedly connected with pull rod of slider, the bottom fixedly connected with U-shaped frame of going up the mould, the bottom of U-shaped frame and the bottom of pull rod are connected with, the top surface of lower kicking block and the bottom surface of lower mould inner chamber are the same level.
As a preferable scheme of the utility model, the upper demolding mechanism comprises two air bars fixedly arranged on the top surface of an upper mold and an upper notch arranged on the bottom surface of the upper mold, the top ends of the two air bars are fixedly connected with a retaining plate, the bottom surface of the retaining plate is fixedly connected with an upper ejector rod, the bottom end of the upper ejector rod is movably sleeved with an inner cavity of the upper notch and is fixedly connected with an upper ejector block, and the bottom surface of the upper ejector block is flush with the bottom surface of the upper mold.
As a preferable scheme of the utility model, the inner wall of the supporting frame is fixedly connected with two groups of supporting seat groups, the two groups of supporting seat groups are respectively fixedly sleeved with sliding rods, the outer sides of the two sliding rods are respectively movably sleeved with a sliding tube, and the side surfaces of the sliding tubes are connected with the side surfaces of the upper die.
As a preferable scheme of the utility model, the top of the upper die is fixedly sleeved with an injection pipe.
As a preferable mode of the utility model, the inner wall of the lower notch is attached to the outer side face of the lower top block.
As a preferable mode of the utility model, the inner wall of the upper notch is attached to the outer side face of the upper top block.
Compared with the prior art, the utility model has the advantages that:
(1) When the upper die moves downwards, the U-shaped frame drives the pull rod and the sliding block to move downwards, and the sliding block is used for pulling the lower ejector rod so as to reset the lower ejector block into the lower notch, thereby realizing the function of resetting the lower ejector block.
(2) According to the utility model, through the matched use of the air rod, the upper notch, the retaining plate, the upper ejector rod and the upper ejector block, when the upper die moves upwards, the retaining plate is contacted with the supporting frame, the supporting frame is used for pushing the retaining plate, at the moment, the air rod is compressed, and the upper ejector rod and the upper ejector block move downwards, so that a product connected with the bottom surface of the upper die is ejected, the function of demolding below the upper die is realized, and the practicability is good.
Drawings
FIG. 1 is a schematic diagram of the front structure of the present utility model;
FIG. 2 is a schematic view of the back structure of the present utility model;
FIG. 3 is a schematic cross-sectional view of the present utility model;
FIG. 4 is an enlarged schematic view of the utility model at A in FIG. 3;
FIG. 5 is an enlarged schematic view of the utility model at B in FIG. 3;
Fig. 6 is an enlarged schematic view of fig. 3 at C in accordance with the present utility model.
The reference numerals in the drawing are 1, a bottom plate, 2, a supporting rod, 3, a lower die, 4, a hydraulic rod, 5, an upper die, 6, a U-shaped frame, 7, a lower notch, 8, a lower ejector block, 9, a lower ejector rod, 10, a sliding chute, 11, a sliding block, 12, a pull rod, 13, an upper demoulding mechanism, 14, a gas rod, 15, an upper notch, 16, a retaining plate, 17, an upper ejector rod, 18, an upper ejector block, 19, a supporting frame, 20, a supporting seat group, 21, a sliding rod, 22, a sliding tube, 23 and an injection molding tube.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.
In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and include, for example, "connected to," whether fixedly connected to, detachably connected to, or integrally connected to, mechanically connected to, electrically connected to, directly connected to, indirectly connected to, and in communication with each other via an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Examples:
Referring to fig. 1-6, an ejection mechanism of an injection mold comprises a bottom plate 1, a supporting frame 19 is fixedly connected to the top surface of the bottom plate 1, a plurality of struts 2 are fixedly connected to the top surface of the bottom plate 1, a lower mold 3 is fixedly connected to the bottom surface of the plurality of struts 2, a hydraulic rod 4 is fixedly mounted on the supporting frame 19, the output end of the hydraulic rod 4 extends to the bottom of the supporting frame 19 and is fixedly connected with an upper mold 5, the bottom end of the upper mold 5 extends to an inner cavity of the lower mold 3, an upper demolding mechanism 13 is arranged on the upper mold 5, a lower notch 7 is formed in the bottom surface of the inner cavity of the lower mold 3, a lower ejector block 8 is sleeved in the inner cavity of the lower notch 7, a lower ejector rod 9 is fixedly connected to the bottom surface of the lower ejector block 8, a sliding groove 10 is formed in the bottom surface of the lower ejector rod 9, a sliding block 11 is movably sleeved in the inner cavity of the sliding groove 10, a pull rod 12 is fixedly connected to the bottom surface of the upper mold 5, the bottom end of the U-shaped frame 6 is connected to the bottom end of the pull rod 12, and the top surface of the lower ejector block 8 is flush with the bottom surface of the inner cavity of the lower mold 3.
Specifically, referring to fig. 1, 2 and 5, the upper demolding mechanism 13 includes two air bars 14 fixedly installed on the top surface of the upper mold 5 and an upper notch 15 formed on the bottom surface of the upper mold 5, top ends of the two air bars 14 are fixedly connected with a retaining plate 16, the bottom surface of the retaining plate 16 is fixedly connected with an upper ejector rod 17, the bottom end of the upper ejector rod 17 is movably sleeved in an inner cavity of the upper notch 15 and is fixedly connected with an upper ejector block 18, and the bottom surface of the upper ejector block 18 is flush with the bottom surface of the upper mold 5.
Specifically, referring to fig. 1, two sets of support base sets 20 are fixedly connected to an inner wall of the support frame 19, sliding rods 21 are fixedly sleeved on the two sets of support base sets 20, sliding tubes 22 are movably sleeved on outer sides of the two sliding rods 21, and side surfaces of the sliding tubes 22 are connected with side surfaces of the upper die 5.
In this embodiment, the upper die 5 is limited by the cooperation between the slide rod 21 and the slide tube 22, so as to ensure the stability of the upper die 5.
Specifically, referring to fig. 2, an injection tube 23 is fixedly sleeved on the top of the upper mold 5.
In this embodiment, molten plastic is injected into the lower mold 3 and the upper mold 5 through the injection pipe 23.
Specifically, referring to fig. 4, the inner wall of the lower recess 7 is attached to the outer side of the lower top block 8.
In the present embodiment, the stability of the lower top block 8 accommodated in the lower recess 7 is ensured, and the lower recess 7 is blocked by the lower top block 8 accommodated in the lower recess 7.
Specifically, referring to fig. 5, the inner wall of the upper recess 15 is attached to the outer side of the upper top block 18.
In this embodiment, the stability of the upper top block 18 stored in the inner cavity of the upper recess 15 is ensured, and the upper recess 15 is blocked by the upper top block 18 stored in the upper recess 15.
When the plastic injection molding machine is used, firstly, the hydraulic rod 4 is started to drive the upper die 5 to move downwards and the lower die 3 to be clamped, at the moment, the air rod 14 is in an extending state, so that the upper ejector rod 17 and the upper ejector block 18 are driven to move upwards by the abutment plate 16, the upper ejector block 18 is arranged in the upper notch 15, in addition, the sliding block 11 at the top end of the pull rod 12 drives the lower ejector rod 9 to move downwards, the lower ejector block 8 at the top end of the lower ejector rod 9 is arranged in the lower notch 7, then molten plastic is injected into the lower die 3 from the injection pipe 23, so that injection molding is completed, then, after the plastic product is molded, the hydraulic rod 4 is started to drive the upper die 5 to move upwards, the upper die 5 is used to drive the U-shaped frame 6 to move upwards, the pull rod 12 and the sliding block 11 are driven to move upwards by the upper die 5, the sliding block 11 is pushed upwards in the sliding groove 10, after the top surface of the sliding block 11 is attached to the inner cavity of the sliding groove 10, at the moment, the lower ejector rod 9 and the lower ejector block 8 are pushed upwards by the sliding block 11, the plastic product in the lower ejector rod 3 is jacked by the lower ejector block 8, finally, when the plastic product and the upper die 5 are moved upwards by the abutment plate 16, the upper cavity is pushed by the upper supporting frame 19, the upper die 5 is continuously, and the upper die 17 is contracted, so that the upper die 5 and the upper die 5 is pushed and the upper cavity is continuously pushed by the upper cavity and lower die 5.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution and the modified concept thereof, within the scope of the present utility model.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421085685.XU CN222271144U (en) | 2024-05-18 | 2024-05-18 | Ejection mechanism of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421085685.XU CN222271144U (en) | 2024-05-18 | 2024-05-18 | Ejection mechanism of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222271144U true CN222271144U (en) | 2024-12-31 |
Family
ID=93988231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421085685.XU Active CN222271144U (en) | 2024-05-18 | 2024-05-18 | Ejection mechanism of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222271144U (en) |
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2024
- 2024-05-18 CN CN202421085685.XU patent/CN222271144U/en active Active
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