CN224044458U - A secondary ejection structure for injection molds - Google Patents
A secondary ejection structure for injection moldsInfo
- Publication number
- CN224044458U CN224044458U CN202520556851.8U CN202520556851U CN224044458U CN 224044458 U CN224044458 U CN 224044458U CN 202520556851 U CN202520556851 U CN 202520556851U CN 224044458 U CN224044458 U CN 224044458U
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- plate
- fixedly connected
- groove
- mold
- ejection
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Abstract
The utility model discloses a secondary ejection structure of an injection mold, wherein a side plate is fixedly connected to the upper surface of a bottom plate, a lower mold is arranged at the upper end of the side plate, a first-stage ejector plate is arranged on the inner side of the side plate, a first-stage ejector rod is symmetrically and fixedly connected to the upper surface of the first-stage ejector plate, a push plate is fixedly connected to the upper end of the first-stage ejector rod through the lower mold, a second-stage ejector plate is sleeved on the side surface of the first-stage ejector rod, a second-stage ejection assembly is arranged on the upper surface of the second-stage ejector plate, a groove II is symmetrically formed in the upper surface of the first-stage ejector plate, a second-stage ejection driving assembly is arranged in the groove II, an upper mold is arranged on the upper surface of the lower mold, the upper surface of the upper mold is fixedly connected with the upper plate, and the two side surfaces of the lower mold are detachably connected with the upper end of the side plate through symmetrically arranged buckle assemblies. The product deformation caused by uneven ejection force of the ejection structure is prevented, the production quality of injection molding products is improved, meanwhile, the products can be ejected and demoulded step by step, the difficulty of product demoulding is reduced, and the efficiency of product demoulding is improved.
Description
Technical Field
The utility model relates to the technical field of injection mold ejection structures, in particular to a secondary ejection structure of an injection mold.
Background
Injection molding is a method for producing and shaping industrial products. Products are generally molded using rubber and plastic. Injection molding can also be divided into injection molding compression molding and die casting, and an injection molding machine (simply referred to as an injection molding machine or an injection molding machine) is a main molding apparatus for molding thermoplastic or thermosetting materials into plastic products of various shapes using a plastic molding die, and injection molding is performed by the injection molding machine and the die.
The existing injection mold is usually required to be matched with a secondary ejection structure in the production process, so that an injection product in the injection mold is conveniently taken out, ejection force of the conventional secondary ejection structure is uneven in use, and the ejected product is easy to deform due to uneven stress, so that the production quality of the injection product is reduced.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a secondary ejection structure of an injection mold, which solves the problem of uneven ejection force when the traditional ejection structure is used, thereby preventing products from deforming due to uneven ejection force of the ejection structure, improving the production quality of injection products, and simultaneously being capable of carrying out stepwise ejection and demolding on the products, reducing the difficulty of product demolding and improving the efficiency of product demolding.
The secondary ejection structure of the injection mold comprises a bottom plate, wherein the upper surface of the bottom plate is fixedly connected with a side plate, the upper end of the side plate is provided with a lower mold, the inner side of the side plate is provided with a primary ejector plate, the upper surface of the primary ejector plate is symmetrically and fixedly connected with a primary ejector rod, the upper end of the primary ejector rod penetrates through the lower mold and is fixedly connected with a push plate, the side surface of the primary ejector rod is sleeved with a secondary ejector plate, the upper surface of the secondary ejector plate is provided with a secondary ejection assembly, the upper surface of the primary ejector plate is symmetrically provided with a groove II, the inside of the groove II is provided with a secondary ejection driving assembly, the upper surface of the lower mold is provided with an upper mold, the upper surface of the upper mold is fixedly connected with an upper plate, and the two side surfaces of the lower mold are detachably connected with the upper end of the side plate through symmetrically arranged buckle assemblies.
As further optimization, the secondary ejection assembly comprises secondary ejector rods which are symmetrically arranged, the upper ends of the secondary ejector rods penetrate through the lower die and the push plate through holes, a groove I is formed in the upper surface of the push plate, an ejection frame is arranged in the groove I, and the upper ends of the secondary ejector rods are located on the lower surface of the ejection frame.
As further optimization, the ejecting drive assembly of second grade includes the wane, and the inside that is located recess II of wane, the centre of wane is rotated through pivot and recess II's inner wall and is connected, and the one end fixedly connected with guide pulley of wane, one side of guide pulley is equipped with the spacing groove, and spacing groove and the inboard fixed surface of curb plate are connected.
As further optimization, the upper surface of the secondary ejector plate is fixedly connected with a reset spring, and the upper end of the reset spring is fixedly connected with the lower surface of the lower die.
As further optimization, limit sliding grooves are symmetrically formed in the inner side surface of the lower die, limit sliding plates are connected in a sliding mode in the limit sliding grooves, and the lower ends of the limit sliding plates are fixedly connected with the side surfaces of the pushing plates.
As a further optimization, the buckle assembly comprises a clamping groove, a groove III is formed in the inner wall of the clamping groove, a clamping rod is arranged in the groove III, one end of the clamping rod is fixedly connected with a sliding block, the lower surface of the sliding block is fixedly connected with a tension spring, and the lower end of the tension spring is fixedly connected with the upper surface of the side plate.
Compared with the prior art, the utility model has the following beneficial effects:
1. The two-stage ejector plate arranged on the upper surface of the one-stage ejector plate and the two-stage ejector rod symmetrically and fixedly connected with the upper surface of the two-stage ejector plate are mutually matched with the limit groove which is rotationally connected with the inner part of the groove II on the two sides of the one-stage ejector plate and fixedly connected with the inner surface of the side plate and the push plate and the ejector frame arranged in the lower die, so that the problem that the ejection force is uneven when the traditional ejection structure is used is solved, the deformation of a product caused by the uneven ejection force of the ejection structure is prevented, the production quality of an injection molding product is improved, and meanwhile, the product can be ejected and demolded step by step, the demolding difficulty of the product is reduced, and the demolding efficiency of the product is improved;
2. Clamping grooves symmetrically formed in the side surfaces of the lower die and clamping rods arranged on the inner sides of the clamping grooves are matched with grooves III formed in the inner surfaces of the clamping grooves, sliding blocks and tension springs, so that the lower die can be quickly installed and detached, and different injection molding products can be conveniently processed.
Drawings
FIG. 1is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged schematic view of the structure at A in the present utility model;
FIG. 3 is a schematic view showing the internal structure of the lower die of the present utility model;
FIG. 4 is a schematic view of the inner side structure of the side plate according to the present utility model;
Fig. 5 is a schematic structural view of a first-stage ejector plate according to the present utility model.
The device comprises a bottom plate, 101, a side plate, 102, a limit groove, 2, a first-stage ejector plate, 201, a push plate, 202, a groove I, 203, a limit slide plate, 204, a first-stage ejector rod, 205, a guide wheel, 206, a groove II, 207, a rocker, 3, a lower die, 301, a clamping groove, 302, a groove III, 303, a clamping rod, 304, a limit slide groove, 305, a return spring, 306, a sliding block, 307, a tension spring, 4, an upper die, 401, an upper plate, 5, a second-stage ejector plate, 501, an ejector frame, 502 and a second-stage ejector 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.
As shown in fig. 1 to 5, an injection mold secondary ejection structure comprises a bottom plate 1, the upper surface of the bottom plate 1 is fixedly connected with a side plate 101, the upper end of the side plate 101 is provided with a lower mold 3, the inner side of the side plate 101 is provided with a primary ejector plate 2, the upper surface of the primary ejector plate 2 is symmetrically and fixedly connected with a primary ejector rod 204, the upper end of the primary ejector rod 204 passes through the lower mold 3 and is fixedly connected with a push plate 201, the side surface of the primary ejector rod 204 is sleeved with a secondary ejector plate 5, the upper surface of the secondary ejector plate 5 is provided with a secondary ejector assembly, the upper surface of the primary ejector plate 2 is symmetrically provided with a groove II206, the inside of the groove II206 is provided with a secondary ejector driving assembly, the upper surface of the lower mold 3 is provided with an upper mold 4, the upper surface of the upper mold 4 is fixedly connected with an upper plate 401, and the two side surfaces of the lower mold 3 are detachably connected with the upper end of the side plate 101 through symmetrically arranged buckle assemblies.
Specifically, the second-stage ejection assembly comprises second-stage ejector rods 502 which are symmetrically arranged, the upper ends of the second-stage ejector rods 502 penetrate through the lower die 3 and the push plate 201 through holes, a groove I202 is formed in the upper surface of the push plate 201, an ejection frame 501 is arranged in the groove I202, the upper ends of the second-stage ejector rods 502 are located on the lower surface of the ejection frame 501, and the injection molding products which can be ejected by the second-stage ejection assembly are stressed evenly, so that ejection deformation of the injection molding products is avoided.
Further, the ejecting drive assembly of second grade includes wane 207, and wane 207 be located the inside of recess II206, the centre of wane 207 is rotated through pivot and recess II 206's inner wall and is connected, and the one end fixedly connected with guide pulley 205 of wane 207, one side of guide pulley 205 is equipped with spacing groove 102, and spacing groove 102 and the inboard fixed surface of curb plate 101 are connected, can promote the ejecting board 5 secondary of second grade through wane 207, guide pulley 205 and spacing groove 102 and rise, and can carry out the secondary and ejecting to the injection molding product, and reduce the drawing of patterns degree of difficulty of injection molding product.
In addition, the upper surface of the secondary ejector plate 5 is fixedly connected with a return spring 305, and the upper end of the return spring 305 is fixedly connected with the lower surface of the lower die 3, so that the secondary ejector plate 5 is convenient to recover to the original position after secondary ejection, and the next use is convenient.
Specifically, limit sliding grooves 304 are symmetrically formed in the inner side surface of the lower die 3, limit sliding plates 203 are slidably connected in the limit sliding grooves 304, the lower ends of the limit sliding plates 203 are fixedly connected with the side surfaces of the push plates 201, the push plates 201 can be further limited through the limit sliding grooves 304 and the limit sliding plates 203, the stability of the push plates 201 is improved, and deformation of injection molding products caused by deviation of the push plates 201 in moving is avoided.
The buckle subassembly includes draw-in groove 301, and recess III302 has been seted up to the inner wall of draw-in groove 301, the inside of recess III302 is equipped with clamping lever 303, and the one end fixedly connected with sliding block 306 of clamping lever 303, the lower surface fixedly connected with extension spring 307 of sliding block 306, and the lower extreme and the upper surface fixed connection of curb plate 101 of extension spring 307, through clamping lever 303 in the buckle subassembly, sliding block 306 and extension spring 307 and draw-in groove 301 and recess III302 cooperation, thereby can dismantle fast or change lower mould 3, thereby can mould plastics different products.
When the injection molding machine is used, the primary ejector plate 2 is pushed to move towards the lower die 3 by the external hydraulic cylinder, the secondary ejector plate 5 on the upper surface of the primary ejector plate 2 is also close to the lower die 3, meanwhile, the primary ejector rod 204 on the upper surface of the primary ejector plate 2 passes through the lower die 3 to push the push plate 201 upwards, so that injection molding products in the lower die 3 are ejected for the first time, the rocker 207 in the groove II206 is also close to the lower die 3 at the same time, when the guide wheel 205 at one end of the rocker 207 is propped against the upper end of the limiting groove 102, the rocker 207 is lifted, the other end of the rocker 207 is lifted up the secondary ejector plate 5, the secondary ejector plate 5 is lifted up to push the secondary ejector rod 502, so that the secondary ejector rod 502 ejects injection molding products again through the ejector frame 501, demoulding is carried out on the injection molding products, after demoulding is completed, the primary ejector plate 2 is pulled back to the original position by the external hydraulic cylinder, and at the moment, the reset spring 305 on the upper surface of the secondary ejector plate 5 is pushed back to the original position, and then injection molding is carried out on the next product.
And all that is not described in detail in this specification is well known to those skilled in the art.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Rather, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more in the limited case. The term "comprising one" does not exclude the presence of other identical elements in a process, method, article or apparatus that comprises an element.
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.
Claims (6)
1. The secondary ejection structure of the injection mold comprises a bottom plate (1) and is characterized in that a side plate (101) is fixedly connected to the upper surface of the bottom plate (1), a lower mold (3) is arranged at the upper end of the side plate (101), a primary ejector plate (2) is arranged on the inner side of the side plate (101), primary ejector rods (204) are symmetrically and fixedly connected to the upper surface of the primary ejector plate (2), the upper end of the primary ejector rods (204) passes through a push plate (201) fixedly connected to the lower mold (3), a secondary ejector plate (5) is sleeved on the side surface of the primary ejector rods (204), a secondary ejector assembly is arranged on the upper surface of the secondary ejector plate (5), a groove II (206) is symmetrically arranged on the upper surface of the primary ejector plate (2), a secondary ejector driving assembly is arranged in the groove II (206), an upper mold (4) is arranged on the upper surface of the lower mold (3), an upper plate (401) is fixedly connected to the upper surface of the upper mold (4), and two side surfaces of the lower mold (3) can be detached from the upper end of the side plate (101) through symmetrically arranged buckle assemblies.
2. The secondary ejection structure of the injection mold of claim 1, wherein the secondary ejection assembly comprises secondary ejector rods (502) which are symmetrically arranged, the upper ends of the secondary ejector rods (502) penetrate through the lower mold (3) and the push plate (201) through holes, grooves I (202) are formed in the upper surface of the push plate (201), ejection frames (501) are arranged in the grooves I (202), and the upper ends of the secondary ejector rods (502) are located on the lower surface of the ejection frames (501).
3. The secondary ejection structure of the injection mold of claim 1, wherein the secondary ejection driving assembly comprises a rocker (207), the rocker (207) is located in a groove II (206), the middle of the rocker (207) is rotatably connected with the inner wall of the groove II (206) through a rotating shaft, one end of the rocker (207) is fixedly connected with a guide wheel (205), one side of the guide wheel (205) is provided with a limit groove (102), and the limit groove (102) is fixedly connected with the inner side surface of the side plate (101).
4. The secondary ejection structure of the injection mold of claim 1, wherein the upper surface of the secondary ejection plate (5) is fixedly connected with a return spring (305), and the upper end of the return spring (305) is fixedly connected with the lower surface of the lower mold (3).
5. The secondary ejection structure of the injection mold of claim 1, wherein limiting sliding grooves (304) are symmetrically formed in the inner side surface of the lower mold (3), limiting sliding plates (203) are connected inside the limiting sliding grooves (304) in a sliding mode, and the lower ends of the limiting sliding plates (203) are fixedly connected with the side surfaces of the pushing plates (201).
6. The injection mold secondary ejection structure of claim 1, wherein the buckle assembly comprises a clamping groove (301), a groove III (302) is formed in the inner wall of the clamping groove (301), a clamping rod (303) is arranged in the groove III (302), one end of the clamping rod (303) is fixedly connected with a sliding block (306), the lower surface of the sliding block (306) is fixedly connected with a tension spring (307), and the lower end of the tension spring (307) is fixedly connected with the upper surface of the side plate (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520556851.8U CN224044458U (en) | 2025-03-27 | 2025-03-27 | A secondary ejection structure for injection molds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520556851.8U CN224044458U (en) | 2025-03-27 | 2025-03-27 | A secondary ejection structure for injection molds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN224044458U true CN224044458U (en) | 2026-03-27 |
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ID=99208688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520556851.8U Active CN224044458U (en) | 2025-03-27 | 2025-03-27 | A secondary ejection structure for injection molds |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN224044458U (en) |
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2025
- 2025-03-27 CN CN202520556851.8U patent/CN224044458U/en active Active
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