A new mechanism for driving the front and back die ejector plate to move

CN224751679UActive Publication Date: 2026-09-15HONGLIDA MOULD TECH (ZHONGSHAN) CO LTD
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Patent Information

Application Number
CN202522347785.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-05
Publication Date
2026-09-15
Estimated Expiration
2035-11-05

AI Technical Summary

Technical Problem

油缸带动前模顶针板会增加制模成本,还会导致生产维修油缸滴油现象,影响生产车间的整洁度,严重还会漏在产品上,造成产品不良率提高

Benefits of technology

[0025] 1. This utility model proposes a novel mechanism for opening a mold and driving the movement of the front and rear mold ejector plates. Through the design of this novel mold opening mechanism, costs can be reduced, the risk of oil leakage from the hydraulic cylinder can be avoided, and products can be ejected synchronously during mold opening. This ensures smooth mold production, product production stability, and improves production efficiency. At the same time, through the mutual cooperation between the locking block, locking groove, push block, and connecting rod, the ejector plate is driven to move, which can be applied to more complex products. This allows for the mass production of complex products that were previously impossible to produce, meeting the functional and market demands of complex products. Moreover, this structure breaks with traditional thinking. Compared with the traditional structure, this structure is based on the force of mold opening, making the mold structure simpler, smoother in mold opening and closing, and more flexible. This ensures smooth mold production, product production stability, and improves production efficiency.

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Abstract

The utility model relates to a die opening mechanism field discloses a novel mechanism of die opening drives front and rear die ejector plate movement, including upper module and lower module, the inside of upper module is provided with die opening module, the inside of lower module is provided with stripping module, the die opening module includes upper ejector bottom plate, one side of upper ejector bottom plate outer wall is connected with upper ejector faceplate, the outer wall one side of upper ejector faceplate is provided with first connecting rod, the bottom end one side of upper module is provided with first push, the inside one side of lower module upper end is provided with first spring, one end of first spring is connected with first clamping block, and the mutual cooperation between first clamping block and first push. In the utility model, through the design of novel die opening mechanism, can reduce the cost, avoid the risk of oil cylinder oil leakage and realize die opening synchronous ejection product, make the die production smooth, the stability of product production gets certain guarantee, promotes production efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of mold opening mechanisms, and in particular to a novel mechanism that drives the front and rear mold ejector plates to move when the mold is opened. Background Technology

[0002] The mold opening mechanism is the core component in the mold that controls the parting sequence of the templates. It achieves the orderly separation of multi-plate molds through mechanical or elastic elements. For example, the rubber opener uses friction and spring force to control the priority separation of the sprue plate and the mother plate of a three-plate mold, while the spring wedge type uses spring compression / extension to drive the insert to complete the parting action.

[0003] Traditionally, this type of product structure typically uses a hydraulic cylinder to drive the front and rear mold ejector plates. Driving the front mold ejector plate with a hydraulic cylinder increases mold-making costs and can also lead to oil dripping from the hydraulic cylinder during production and maintenance, affecting the cleanliness of the production workshop. In severe cases, the oil can even leak onto the product, increasing the defect rate.

[0004] Therefore, those skilled in the art have provided a novel mechanism that drives the front and rear mold ejector plates to move when the mold is opened, in order to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a new mechanism that drives the front and rear mold ejector plates to move when the mold is opened. Through the design of the new mold opening mechanism, costs can be reduced, the risk of oil leakage from the oil cylinder can be avoided, and products can be ejected synchronously when the mold is opened, so that mold production is smooth, product production stability is guaranteed to a certain extent, and production efficiency is improved.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A novel mechanism for driving the movement of front and rear mold ejector plates through mold opening includes an upper module and a lower module. The upper module contains a mold opening module, and the lower module contains a mold release module.

[0008] The mold opening module includes an upper ejector base plate, an upper ejector panel connected to one side of the outer wall of the upper ejector base plate, a first connecting rod provided on one side of the outer wall of the upper ejector panel, a first push block provided on one side of the bottom end of the upper module, a first spring provided on one side of the upper end of the lower module, a first locking block connected to one end of the first spring, and the first locking block and the first push block cooperate with each other.

[0009] Through the above technical solutions and the newly designed mold opening mechanism, costs can be reduced, the risk of oil leakage from the hydraulic cylinder can be avoided, and products can be ejected simultaneously with mold opening. This ensures smooth mold production, guarantees the stability of product production, and improves production efficiency.

[0010] Furthermore, the demolding module includes a rear mold core, a lower ejector plate is provided on one side of the bottom end face of the lower module, a lower ejector panel is provided on one side of the outer wall of the lower ejector plate, a second connecting rod is provided on one side of the outer wall of the lower ejector panel, a second slot is opened on the outer wall of one end of the second connecting rod, the second slot and the second locking block are engaged and connected, a second spring is provided on one side of the upper end of the lower module, a second locking block is connected to one end of the second spring, a second push block is provided on one side of the upper end face of the lower module, and the second push block and the second locking block cooperate with each other;

[0011] The above technical solution facilitates the ejection of the mold inside the lower mold by applying the force of the upper and lower mold opening, avoiding the risk of oil leakage from the hydraulic cylinder and thus improving the stability of mold demolding.

[0012] Furthermore, a first fixing block is provided on one side of the bottom end face of the upper module, and the first fixing block and the first locking block cooperate with each other;

[0013] The above technical solution limits the first locking block, thereby preventing it from breaking due to excessive force.

[0014] Furthermore, a first limiting block is provided on one side of the outer wall of the upper ejector panel, and the first limiting block and the upper module cooperate with each other;

[0015] The above technical solution limits the distance between the upper and lower mold pre-opening, thereby preventing excessive mold opening force from damaging internal parts.

[0016] Furthermore, a top roller insert is connected to one side of the lower end face of the rear mold core, and one end of the top roller insert passes through the bottom end of the lower module.

[0017] The above technical solution uses an ejector insert to lift the rear mold core upwards.

[0018] Furthermore, a second fixing block is provided on one side of the upper end of the lower module, and the second fixing block and the second locking block cooperate with each other;

[0019] The above technical solution uses a second fixing block to limit the second locking block, preventing the second locking block from breaking due to excessive force.

[0020] Furthermore, a second limiting block is provided on one side of the outer wall of the lower ejector panel, and the second limiting block and the lower module cooperate with each other;

[0021] The above technical solution limits the upward lifting distance of the rear mold core, preventing excessive demolding force from damaging internal parts.

[0022] Furthermore, a first slot is provided on the outer wall of one end of the first connecting rod, and the first slot and the first locking block are engaged and connected.

[0023] The above technical solution allows the upper and lower molds to be positioned relative to each other by engaging the first connecting rod and the first locking block, thus facilitating their mutual fixation.

[0024] This utility model has the following beneficial effects:

[0025] 1. This utility model proposes a novel mechanism for opening a mold and driving the movement of the front and rear mold ejector plates. Through the design of this novel mold opening mechanism, costs can be reduced, the risk of oil leakage from the hydraulic cylinder can be avoided, and products can be ejected synchronously during mold opening. This ensures smooth mold production, product production stability, and improves production efficiency. At the same time, through the mutual cooperation between the locking block, locking groove, push block, and connecting rod, the ejector plate is driven to move, which can be applied to more complex products. This allows for the mass production of complex products that were previously impossible to produce, meeting the functional and market demands of complex products. Moreover, this structure breaks with traditional thinking. Compared with the traditional structure, this structure is based on the force of mold opening, making the mold structure simpler, smoother in mold opening and closing, and more flexible. This ensures smooth mold production, product production stability, and improves production efficiency. Attached Figure Description

[0026] Figure 1 This is an isometric view of a novel mechanism for driving the front and rear mold ejector plates to move when the mold is opened, as proposed in this utility model.

[0027] Figure 2 A schematic diagram of the upper mold structure before mold opening, which is a novel mechanism for driving the movement of the front and rear mold ejector plates according to this utility model.

[0028] Figure 3 A schematic diagram of the upper mold structure after mold opening, which is a novel mechanism for driving the front and rear mold ejector plates to move when the mold is opened, according to this utility model.

[0029] Figure 4 This is a schematic diagram of the structure of a novel mechanism that drives the front and rear mold ejector plates to move when the mold is opened, as proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the lower mold structure before mold opening, which is a novel mechanism for driving the front and rear mold ejector plates to move when the mold is opened, as proposed in this utility model.

[0031] Figure 6 This is a schematic diagram of the lower mold structure after mold opening, which is a novel mechanism proposed in this utility model to drive the movement of the front and rear mold ejector plates.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Mold Opening Module; 101. Upper Ejector Pin Base Plate; 102. Upper Ejector Pin Panel; 103. First Connecting Rod; 104. First Spring; 105. First Locking Block; 106. First Push Block; 107. First Slot; 2. Demolding Module; 201. Rear Mold Core; 202. Second Push Block; 203. Lower Ejector Pin Base Plate; 204. Lower Ejector Pin Panel; 205. Ejector Roller Insert; 206. Second Connecting Rod; 207. Second Spring; 208. Second Locking Block; 209. Second Slot; 3. Upper Module; 4. Lower Module; 5. First Limiting Block; 6. First Fixing Block; 7. Second Limiting Block; 8. Second Fixing Block. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Reference Figure 1 - Figure 3 This utility model provides a specific implementation method:

[0036] A novel mechanism for opening a mold and driving the movement of the front and rear mold ejector plates includes an upper module 3 and a lower module 4. The upper module 3 is equipped with an opening module 1, and the lower module 4 is equipped with a demolding module 2.

[0037] The mold opening module 1 includes an upper ejector base plate 101, an upper ejector panel 102 connected to one side of the outer wall of the upper ejector base plate 101, a first connecting rod 103 provided on one side of the outer wall of the upper ejector panel 102, a first push block 106 provided on one side of the bottom end of the upper module 3, and a first spring 104 provided on one side of the upper inner end of the lower module 4. One end of the first spring 104 is connected to a first locking block 105. The first locking block 105 and the first push block 106 cooperate with each other. Through the design of the novel mold opening mechanism, costs can be reduced, the risk of oil leakage from the hydraulic cylinder can be avoided, and the product can be ejected simultaneously with the mold opening. This ensures smooth mold production, guarantees the stability of product production, and improves production efficiency. The upper module 3 has a first push block 106 on one side of its bottom end. A first fixing block 6 is provided, which cooperates with the first locking block 105 to limit the first locking block 105, thereby preventing the first locking block 105 from breaking due to excessive force. A first limiting block 5 is provided on one side of the outer wall of the upper ejector plate 102, which cooperates with the upper module 3 to limit the distance between the upper and lower mold pre-opening, thereby preventing damage to internal parts due to excessive mold opening force. A first slot 107 is provided on the outer wall of one end of the first connecting rod 103, which engages with the first locking block 105. By engaging the first connecting rod 103 and the first locking block 105, the upper and lower molds can be positioned relative to each other, thereby facilitating the fixation of the upper and lower molds.

[0038] Reference Figure 4 - Figure 6 The demolding module 2 includes a rear mold core 201. A lower ejector plate 203 is provided on one side of the bottom end face of the lower module 4. A lower ejector panel 204 is provided on one side of the outer wall of the lower ejector plate 203. A second connecting rod 206 is provided on one side of the outer wall of the lower ejector panel 204. A second slot 209 is formed on the outer wall of one end of the second connecting rod 206. The second slot 209 and the second locking block 208 are engaged and connected. A second spring 207 is provided on one side of the upper interior of the lower module 4. One end of the second spring 207 is connected to the second locking block 208. A second push block 202 is provided on one side of the upper end face of the lower module 4. The second push block 202 and the second locking block 208 cooperate with each other to facilitate the ejection of the mold inside the lower mold by the force of the upper and lower mold opening, avoiding oil spillage. To reduce the risk of cylinder oil leakage and improve the stability of mold demolding, an ejector insert 205 is connected to one side of the lower end face of the rear mold core 201. One end of the ejector insert 205 passes through the bottom end of the lower module 4, and the ejector insert 205 pushes the rear mold core 201 upward. A second fixing block 8 is provided on one side of the upper end of the lower module 4. The second fixing block 8 and the second locking block 208 cooperate with each other. The second fixing block 8 limits the second locking block 208 to prevent the second locking block 208 from breaking due to excessive force. A second limiting block 7 is provided on one side of the outer wall of the lower ejector plate 204. The second limiting block 7 and the lower module 4 cooperate with each other to limit the distance at which the rear mold core 201 is pushed upward, preventing damage to internal parts due to excessive demolding force.

[0039] Working principle: When the device opens the mold, when the gap between the upper module 3 and the lower module 4 reaches 10mm, the upper module 3 drives the first connecting rod 103 to move upward through the upper ejector plate 101. At the same time, the first push block 106 is driven upward by the upper module 3, so that the first push block 106 pushes the first locking block 105 towards one end of the first spring 104, so that the first locking block 105 and the first locking groove 107 are disengaged, so that the upper module 3 can continue to move upward, thereby realizing the mold opening. At the same time, the ejector insert 205 pushes the lower module 4 upward by 25mm, so that the lower ejector plate 203 drives the second connecting rod 206 to move upward, so that the second push block 202 pushes the second locking block 208 towards one end of the second spring 207, so that the second locking block 208 and the second locking groove 209 are disengaged, thereby pushing the rear mold core 201 inside the device upward, realizing demolding.

[0040] The following points should be noted in this article:

[0041] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0042] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new mechanism for opening the die with the movement of the front and rear die ejector plate, comprising an upper die block (3) and a lower die block (4), characterized in that: The upper module (3) is provided with a mold opening module (1), and the lower module (4) is provided with a demolding module (2). The mold opening module (1) includes an upper ejector base plate (101), an upper ejector panel (102) is connected to one side of the outer wall of the upper ejector base plate (101), a first connecting rod (103) is provided on one side of the outer wall of the upper ejector panel (102), a first push block (106) is provided on one side of the bottom end of the upper module (3), a first spring (104) is provided on one side of the upper end of the lower module (4), a first locking block (105) is connected to one end of the first spring (104), and the first locking block (105) and the first push block (106) cooperate with each other.

2. The novel mechanism for driving the front and rear mold ejector plates to move when the mold is opened, as described in claim 1, is characterized in that: The demolding module (2) includes a rear mold core (201). A lower ejector plate (203) is provided on one side of the bottom end face of the lower module (4). A lower ejector panel (204) is provided on one side of the outer wall of the lower ejector plate (203). A second connecting rod (206) is provided on one side of the outer wall of the lower ejector panel (204). A second slot (209) is opened on the outer wall of one end of the second connecting rod (206). The second slot (209) and the second locking block (208) are engaged and connected. A second spring (207) is provided on one side of the upper end of the lower module (4). A second locking block (208) is connected to one end of the second spring (207). A second push block (202) is provided on one side of the upper end face of the lower module (4). The second push block (202) and the second locking block (208) cooperate with each other.

3. The novel mechanism for driving the front and rear mold ejector plates to move when the mold is opened, as described in claim 1, is characterized in that: The upper module (3) has a first fixing block (6) on one side of its bottom surface, and the first fixing block (6) and the first locking block (105) cooperate with each other.

4. The novel mechanism for driving the front and rear mold ejector plates to move when the mold is opened, as described in claim 1, is characterized in that: A first limiting block (5) is provided on one side of the outer wall of the upper ejector panel (102), and the first limiting block (5) and the upper module (3) cooperate with each other.

5. A novel mechanism for driving the movement of front and rear mold ejector plates during mold opening, as described in claim 2, is characterized in that: The lower end face of the rear mold core (201) is connected to a top roller insert (205), and one end of the top roller insert (205) passes through the bottom end of the lower module (4).

6. The novel mechanism for driving the front and rear mold ejector plates to move when the mold is opened, as described in claim 1, is characterized in that: The lower module (4) has a second fixing block (8) on one side of its upper interior, and the second fixing block (8) and the second locking block (208) cooperate with each other.

7. A novel mechanism for driving the movement of front and rear mold ejector plates during mold opening, as described in claim 2, is characterized in that: A second limiting block (7) is provided on one side of the outer wall of the lower ejector panel (204), and the second limiting block (7) and the lower module (4) cooperate with each other.

8. The novel mechanism for driving the front and rear mold ejector plates to move when the mold is opened, as described in claim 1, is characterized in that: The outer wall of one end of the first connecting rod (103) is provided with a first slot (107), and the first slot (107) and the first block (105) are engaged and connected.