Straight ejection type ejection mechanism
By designing a direct ejection mechanism, unnecessary mold components were eliminated, resulting in a reduction in mold height and an improvement in demolding stability. This solved the problem of adapting deep-cavity product molds to small machine tools.
Patent Information
- Application Number
- CN202520071604.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-13
AI Technical Summary
Existing molds for deep-cavity products lack stability in demolding action, and the mold height is too high to be adapted to small machines, resulting in a long ejection stroke.
A direct ejection mechanism was designed, including a push plate, a support plate, a rear mold insert, a connecting post, and a limiting tie rod, which are connected by screws. During demolding, the ejector rod pushes out of the connecting post, and the limiting tie rod drives the push plate to move along the guide block and the guide post. When the limiting tie rod reaches the limit, it stops, realizing automatic demolding. The square iron and ejector plate and other components are eliminated to reduce the mold height.
The mold height was reduced, costs were lowered, and the stability and reliability of demolding were improved.
Smart Images
Figure CN223890538U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mould structure technical field especially relates to a straight top ejection mechanism. BACKGROUND
[0002] The mould is used for making the tool of forming article, and the tool is composed of various parts, and different moulds are composed of different parts; in order to guarantee the quality of product and processing effect during use and production, the product needs to be ejected.
[0003] As Fig. 3-4 As shown in the prior art, when the deep cavity shell product is demoulded, the height of square iron 3 is high, so that the total height of the mould is high, thereby causing long stroke.
[0004] The demoulding action of the prior art deep cavity product mould is that the needle 4 is fixed with the original push plate 1 by screw, after the mould is opened, the A plate 9 is separated from the original push plate 1. The ejector pin is ejected, under the action force of the ejector pin, the ejector pin plate 6, the needle holder plate 5 and the needle 4 are driven to move upwards. At this time, the original push plate 1 fixed with the needle moves upwards at the same time, when the upper limiting column 7 of the ejector pin plate 6 contacts the bottom of the B plate 2, the product 11 leaves the rear mould insert 10, the product 11 on the original push plate 1 is completely pushed out, and automatic demoulding is realized.
[0005] When the mould is closed, under the action force of the needle spring 8, the ejector pin plate 6, the needle holder plate 5 and the needle are reset, and the mould is closed.
[0006] The height of the prior art deep cavity shell product mould cannot be adapted to small machine table, the ejection stroke is long, and the action stability is insufficient. INVENTION CONTENTS
[0007] The utility model provides a simple structure, convenient processing and straight top ejection mechanism that improves stability,
[0008] The utility model discloses a technical scheme as follows: a straight top ejection mechanism, comprising a rear mould assembly, characterized by comprising a push plate, a supporting plate, a rear mould insert, a connecting column and a limiting pull rod,
[0009] The push plate is lifted and arranged on the supporting plate, and the rear mould insert is arranged on the supporting plate and passes through the push plate;
[0010] The connecting column is connected with the push plate through a screw, the supporting plate is provided with a sliding hole, and the connecting column is located in the sliding hole;
[0011] The limiting pull rod is in inverted T shape, the limiting pull rod is connected with the push plate through a screw, the supporting plate is provided with a stepped hole with a small upper hole and a large lower hole, and the vertical end of the limiting pull rod is located in the small hole of the stepped hole and the horizontal end is located in the large hole of the stepped hole.
[0012] The top of the supporting plate is provided with a receiving cavity, and the rear mold insert is connected in the receiving cavity.
[0013] The supporting plate is provided with a guide block, and the guide block passes through a first perforation of the push plate.
[0014] The supporting plate is provided with a guide column, and the guide column passes through a second perforation of the push plate.
[0015] The guide column comprises at least two.
[0016] In the working process, the push plate, the connecting column and the limiting pull rod are connected through screws, when demolding, the connecting column is pushed out by the ejector rod, the limiting pull rod drives the push plate to move along the guide block and the guide column, when the limiting pull rod reaches the limit, the movement stops, at this time, the product leaves the rear mold insert, the push plate pushes out the product, and automatic demolding is realized.
[0017] The mold height is reduced, the cost is reduced, and the stability is improved. DRAWINGS
[0018] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed to be used in the specific embodiment or the prior art description will be briefly introduced below. In the drawings, each part is not necessarily drawn according to the actual proportion.
[0019] Fig. 1 is the structural schematic diagram of the utility model,
[0020] Fig. 2 is the action schematic diagram of the utility model,
[0021] Fig. 3 is the structural schematic diagram of the prior art Fig. 1 ,
[0022] Fig. 4 is the structural schematic diagram of the prior art Fig. 2 ;
[0023] Fig. 1 is the original push plate, 2 is B plate, 3 is square iron, 4 is needle, 5 is needle plate, 6 is needle plate, 7 is limiting column, 8 is needle spring, 9 is A plate, 10 is rear mold insert, 11 is product, 12 is push plate, 13 is supporting plate, 14 is connecting column, 15 is limiting pull rod, 16 is sliding hole, 17 is stepped hole, 18 is receiving cavity, 19 is guide block, 20 is first perforation, 21 is guide column, 22 is second perforation. EMBODIMENT
[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0025] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] This utility model is as follows Fig. 1-2 As shown, the direct ejection mechanism includes a rear mold assembly, which comprises a push plate 12, a support plate 13, a rear mold insert 10, a connecting post 14, and a limiting tie rod 15.
[0028] The push plate 12 is raised and lowered on the support plate 13, and the rear mold insert 10 is disposed on the support plate and passes through the push plate 12;
[0029] The connecting post 14 is connected to the push plate 12 by screws. The support plate is provided with a sliding hole 16, and the connecting post is located in the sliding hole.
[0030] The limiting rod 15 is inverted T-shaped. The limiting rod 15 is connected to the push plate 12 by screws. The support plate is provided with a stepped hole 17 that is smaller at the top and larger at the bottom. The vertical end of the limiting rod is located in the small hole of the stepped hole, and the horizontal end is located in the large hole of the stepped hole.
[0031] In operation, the push plate is connected to the connecting column and the limiting tie rod by screws. During demolding, the push rod pushes out the connecting column, and the limiting tie rod drives the push plate to move along the guide block and the guide column. When the limiting tie rod reaches the limit, the movement stops. At this time, the product leaves the rear mold insert, and the push plate pushes out the product, realizing automatic demolding.
[0032] This invention eliminates the square iron, ejector plate, and ejector support plate, thereby reducing the mold height, lowering costs, and improving stability.
[0033] The top center of the tray 13 is provided with a receiving cavity 18, and the rear mold insert is connected to the receiving cavity.
[0034] The cavity is designed to facilitate the installation and connection of the rear mold insert.
[0035] The pallet is provided with a guide block 19, which passes through a through hole 20 in the push plate.
[0036] Guide blocks are installed to facilitate the lifting and lowering of the pallet and ensure the reliability of the operation.
[0037] The pallet is provided with a guide post 21, which passes through the second perforation 22 of the push plate.
[0038] Guide columns are installed to ensure the reliability of the pallet lifting and lowering operation.
[0039] The guide pillars include at least two.
[0040] The settings can be selected according to the mold processing requirements.
[0041] This invention optimizes the mold structure to design an ejection mechanism that is simple in structure, reduces the overall height and cost of the mold, and is structurally stable.
[0042] Regarding the information disclosed in this case, the following points need to be clarified:
[0043] (1) The accompanying drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case; other structures can refer to the general design.
[0044] (2) Where there is no conflict, the embodiments and features disclosed in this case can be combined with each other to obtain new embodiments;
[0045] The above are merely specific embodiments disclosed in this case, but the scope of protection of this disclosure is not limited thereto. The scope of protection disclosed in this case shall be determined by the scope of protection of the claims.
Claims
1. A direct ejection mechanism, including a rear mold assembly, characterized in that, The rear mold assembly includes a push plate, a support plate, a rear mold insert, a connecting post, and a limiting tie rod. The push plate is lifted and lowered on the support plate, and the rear mold insert is placed on the support plate and passes through the push plate; The connecting post is connected to the push plate by screws, and the support plate is provided with a sliding hole, in which the connecting post is located; The limiting rod is inverted T-shaped and is connected to the push plate by screws. The support plate has a stepped hole that is smaller at the top and larger at the bottom. The vertical end of the limiting rod is located in the smaller hole of the stepped hole, and the horizontal end is located in the larger hole of the stepped hole.
2. The direct-push ejection mechanism according to claim 1, characterized in that, The top center of the tray has a receiving cavity, and the rear mold insert is connected to the receiving cavity.
3. The direct-push ejection mechanism according to claim 1, characterized in that, The pallet is provided with a guide block, which passes through a perforation in the push plate.
4. The direct-push ejection mechanism according to claim 1, characterized in that, The pallet is provided with a guide post, which passes through the second perforation of the push plate.
5. The direct-push ejection mechanism according to claim 4, characterized in that, The guide posts include at least two.