Trigger mechanism for controlling mold opening
By introducing a trigger mechanism into the injection mold, and utilizing the cooperation of springs and movable trigger blocks, the problems of mold closing stability and structural complexity are solved, and stable control of the mold closing sequence and spatial optimization are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN HUIYANG PLASTIC PROD CO LTD
- Filing Date
- 2025-04-11
- Publication Date
- 2026-05-15
AI Technical Summary
Existing injection molds have poor mold closing stability, and the existing clamping machine control structure is complex and occupies a large space.
A trigger mechanism for controlling mold opening is adopted, including an upper closing template, a lower closing template and a base template. By using the cooperation of a spring and a movable trigger block, the mold closing sequence is controlled by pushing the mold closing switch head. The structure is simple and occupies little space.
It achieves stable control of the mold closing sequence, has a simple structure and occupies little space, and improves the mold closing stability and space utilization efficiency.
Smart Images

Figure CN224240271U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of molds, specifically a trigger mechanism for controlling mold opening. Background Technology
[0002] When injection molds are closed, it is sometimes necessary to control the closing sequence of the upper and lower molds. Most existing methods use spring-loaded elastic supports for mold closing control, which results in poor mold closing stability. Furthermore, existing locking mechanisms, such as the novel mold locking mechanism for simultaneous mold opening and closing control described in application number CN202222992318.5, are complex, space-consuming, and inconvenient. Therefore, those skilled in the art have provided a trigger mechanism for controlling mold opening to solve the problems mentioned in the background section. Utility Model Content
[0003] The purpose of this invention is to provide a trigger mechanism for controlling mold opening, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A trigger mechanism for controlling mold opening includes an upper closing template, a lower closing template, and a base template disposed between the upper and lower closing templates. The base template has mounting grooves on both sides of its opposite sidewalls. A bottom locking support plate is installed inside the mounting groove. A movable trigger block is movably disposed above the bottom locking support plate and between it and the mounting groove. A support blind hole is provided on the sidewall of the movable trigger block. A spring is clamped between the support blind hole and the groove wall of the mounting groove. A mold closing switch head one is disposed on the sidewall of the upper closing template, located on one side of the movable trigger block. A mold closing switch head two is disposed on the sidewall of the lower closing template, located on one side of the movable trigger block.
[0006] The movable trigger block has an integrally formed sloping chamfer on one side of the mold closing switch head, and the bottom of the mold closing switch head has a push chamfer on one side of the movable trigger block.
[0007] As a further embodiment of this utility model: a guide groove is provided on one side of the mounting groove on the base template for guiding the mold closing switch head one and the mold closing switch head two.
[0008] As a further improvement of this utility model: the first mold closing switch head is connected to the upper mold closing template and the second mold closing switch head is connected to the lower mold closing template by fixing screws.
[0009] As a further improvement of this utility model, the bottom locking support plate is connected to the base template by screws.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] This invention allows the upper and lower mold plates to separate from the base mold. Under the action of a spring, the movable trigger block can be pushed to move outward on the bottom locking support plate, which can hold the mold closing switch head two. When the mold closes again, only after the upper mold plate closes can the chamfer of the mold closing switch head one push the chamfer of the movable trigger block, thereby pushing the movable trigger block to the initial position. Then the mold closing switch head two can move to close the lower mold plate, thus controlling the mold closing sequence. The use of a locking mechanism to control the mold opening sequence results in a stable structure. Compared with other similar locking mechanisms, this locking mechanism has a simpler structure. This application is set on the side wall of the base mold and the upper and lower mold plates, requiring less space. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a bottom view of the present invention after removing the upper and lower closing templates;
[0014] Figure 3 This utility model describes the connection structure of the mold closing switch head 1, the mold closing switch head 2, the bottom locking support plate, and the movable trigger block. Figure 1 ;
[0015] Figure 4 This utility model describes the connection structure of the mold closing switch head 1, the mold closing switch head 2, the bottom locking support plate, and the movable trigger block. Figure 2 .
[0016] In the diagram: 1. Base template; 101. Mounting groove; 102. Guide groove; 2. Upper closing template; 3. Lower closing template; 4. Mold closing switch wrench one; 401. Push chamfer; 5. Mold closing switch wrench two; 6. Bottom locking support plate; 7. Movable trigger block; 701. Support blind hole; 702. Angled top chamfer; 8. Spring; 9. Fixing screw. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figures 1-4In this embodiment of the present invention, a trigger mechanism for controlling mold opening includes an upper closing template 2, a lower closing template 3, and a base template 1 disposed between the upper closing template 2 and the lower closing template 3. Mounting grooves 101 are provided on both sides of the opposite sidewalls of the base template 1. A bottom locking support plate 6 is installed inside the mounting groove 101. A movable trigger block 7 is movably disposed above the bottom locking support plate 6 and between it and the mounting groove 101. A support blind hole 701 is provided on the sidewall of the movable trigger block 7. A spring 8 is clamped between the support blind hole 701 and the groove wall of the mounting groove 101. A mold closing switch head 1 4 is provided on the sidewall of the upper closing template 2, located on one side of the movable trigger block 7. A mold closing switch head 2 5 is provided on the sidewall of the lower closing template 3, located on one side of the movable trigger block 7.
[0019] The upper part of the movable trigger block 7 is integrally formed with a slanted chamfer 702 on one side of the mold closing switch head 4, and the bottom of the mold closing switch head 4 is provided with a push chamfer 401 on one side of the movable trigger block 7.
[0020] By adopting the above technical solution, after the upper mold plate 2 and the lower mold plate 3 are separated from the base mold plate 1, the movable trigger block 7 can be pushed to move outward on the bottom locking support plate 6 under the action of the spring 8. It can hold the mold closing switch head 2 5. When the mold is closed again, only after the upper mold plate 2 is closed, the chamfer 401 of the mold closing switch head 4 pushes the chamfer 702 of the movable trigger block 7, thereby pushing the movable trigger block 7 to move to the initial position. Then the mold closing switch head 2 5 can move to make the lower mold plate 3 close. This realizes the control of the mold closing sequence. The use of the clamping machine to control the mold opening sequence is structurally stable. Compared with other similar clamping machines in the past, this clamping machine has a simpler structure. The clamping machine is set at the side wall position of the base mold and the upper and lower molds, and the required space is also smaller.
[0021] Among them, the base template 1 has a guide groove 102 on one side of the mounting groove 101 to provide guidance for the mold closing switch head 4 and the mold closing switch head 5.
[0022] In this embodiment, the mold closing switch head 1 4 is connected to the upper mold closing template 2 and the mold closing switch head 2 5 is connected to the lower mold closing template 3 by fixing screws 9, and the bottom locking support plate 6 is connected to the base template 1 by screws.
[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A trigger mechanism for controlling mold opening, comprising an upper closing template (2), a lower closing template (3), and a base template (1) disposed between the upper closing template (2) and the lower closing template (3), characterized in that: The base template (1) has mounting grooves (101) on both sides of its opposite sidewalls. A bottom locking support plate (6) is installed inside the mounting groove (101). A movable trigger block (7) is movably arranged between the bottom locking support plate (6) and the mounting groove (101). A support blind hole (701) is opened on the sidewall of the movable trigger block (7). A spring (8) is clamped between the support blind hole (701) and the groove wall of the mounting groove (101). A mold closing switch head one (4) is provided on the sidewall of the upper mold (2) on one side of the movable trigger block (7). A mold closing switch head two (5) is provided on the sidewall of the lower mold (3) on one side of the movable trigger block (7). The movable trigger block (7) has an integrally formed chamfer (702) on the side of the mold closing switch head (4), and the bottom of the mold closing switch head (4) has a push chamfer (401) on the side of the movable trigger block (7).
2. The trigger mechanism for controlling mold opening according to claim 1, characterized in that: The base template (1) has a guide groove (102) on one side of the mounting groove (101) for guiding the mold closing switch head one (4) and the mold closing switch head two (5).
3. The trigger mechanism for controlling mold opening according to claim 1, characterized in that: The mold closing switch head one (4) is connected to the upper mold closing template (2), and the mold closing switch head two (5) is connected to the lower mold closing template (3) by a fixing screw (9).
4. A trigger mechanism for controlling mold opening according to claim 1, characterized in that: The bottom locking support plate (6) is connected to the base template (1) by screws.