A development mold for a CAN bus gas vehicle leakage alarm device
By combining the sliding component and the inclined guide pin, the problem of difficult installation of the CAN bus gas leak alarm device insert was solved, achieving efficient production and high yield, and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU TOMOHO SENSOR TECH CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-14
AI Technical Summary
In traditional manufacturing processes, the installation of CAN bus gas leak alarm devices is difficult, resulting in low production efficiency and low yield, which increases production costs.
The sliding assembly, consisting of a slider, a slide seat, a slanted guide post, and an insert, combined with the cooperation of the slanted guide post and the ejector pin, enables automated installation and demolding of inserts.
It reduces the difficulty of insert installation, improves production efficiency, increases product yield, and reduces production costs.
Smart Images

Figure CN224489858U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sensor manufacturing technology, and in particular to a development mold for a CAN bus gas leak alarm device for automobiles. Background Technology
[0002] CAN bus technology is widely used in automobiles, mainly to connect and control various electronic control modules of the vehicle, improving vehicle performance and reliability. In the application of gas-powered vehicles, multiple leakage sensors are installed on the CAN bus. During the processing of leakage sensors, molten plastic is injected into a mold containing a pre-set insert. In traditional processing, the insert is usually installed manually, which is difficult, resulting in low production efficiency. In addition, the accuracy of manual installation is low, resulting in low product yield, increasing production costs and reducing enterprise profits. Utility Model Content
[0003] To overcome the shortcomings in the prior art, this utility model discloses a mold for developing a CAN bus gas vehicle leak alarm device. This utility model achieves the purpose of reducing the difficulty of installing injection molded parts and improving production efficiency by sequentially setting a female mold plate, a male mold plate, a mold foot and an ejector frame between the first sealing plate and the second sealing plate, and setting a sliding component between the female mold plate and the male mold plate.
[0004] To achieve the aforementioned objective, this utility model adopts the following technical solution:
[0005] A mold for developing a CAN bus gas leak alarm device for automobiles includes a first sealing plate, a female mold plate, a male mold plate, mold feet, an ejector frame, a second sealing plate, and a sliding assembly. The first sealing plate has the female mold plate, male mold plate, mold feet, ejector frame, and second sealing plate arranged sequentially on one side. A positioning ring is provided on the outer surface of the first sealing plate, coaxially with the gate of the first sealing plate. Two mold feet are provided between the male mold plate and the second sealing plate, and an ejector frame is provided between the two mold feet. A sliding assembly is provided between the female mold plate and the male mold plate. The sliding assembly consists of a slider, a sliding seat, a slanted guide post, and an insert. The slider has a sliding seat at the end facing the male mold core, and the slider is slidably connected to the male mold plate. The sliding assembly has at least one insert, each installed on the sliding seat. The slider has an insert at the end facing the sliding seat, and one end of each insert is located within the insert. The other end of the slider has a groove, within which a slanted guide post is located. The lower end of the slanted guide post is fixedly installed on the end face of the male mold plate, and the slanted guide post is slidably connected to the slider.
[0006] Both the female template and the male template are equipped with cooling water channels.
[0007] Two pressure plates are provided on both sides of the slider, and the pressure plates are connected to the male template by bolts.
[0008] The insert is equipped with a cover plate, and the two ends of the cover plate are fixedly connected to the slider by bolts.
[0009] The inclined guide post has a longitudinally arranged straight surface on the side away from the row seat.
[0010] The inner wall of the slide is symmetrically provided with two impact pins. The impact pins are slidably connected to the slider. The side of the impact pin facing the inclined guide post on the outside of the slider is a straight surface. The straight surface of the impact pin matches the straight surface of the inclined guide post. The side of the impact pin away from the inclined guide post is an inclined surface.
[0011] The firing pin is equipped with a spring, which is located at one end of the firing pin inside the slider. One end of the spring is connected to the end of the firing pin, and the other end of the spring is connected to the slider.
[0012] The mold for the CAN bus gas vehicle leak alarm device described in this utility model is highly practical and very convenient to use. This utility model reduces the difficulty of installing the injection molded parts by fixing multiple inserts on the sliding assembly, thereby improving production efficiency. The combination of inclined guide pillars, impact pins and sliders facilitates the demolding of the injection molded parts. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a three-dimensional structural diagram of the sliding component of this utility model;
[0015] Figure 3 This is a component diagram of the sliding assembly mechanism of this utility model;
[0016] In the diagram: 1. First sealing plate; 2. Second sealing plate; 3. Female mold plate; 4. Male mold plate; 5. Positioning ring; 6. Mold foot; 7. Ejector frame; 8. Slide seat; 9. Pressure plate; 10. Slider; 11. Angled guide post; 12. Insert; 13. Cover plate; 14. Insert; 15. Slide groove; 16. Straight surface; 17. Impact pin; 18. Spring. Detailed Implementation
[0017] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.
[0018] Combined with appendix Figures 1-3A mold for developing a CAN bus gas leak alarm device for automobiles includes a first sealing plate 1, a female mold plate 3, a male mold plate 4, mold feet 6, an ejector frame 7, a second sealing plate 2, and a sliding assembly. The female mold plate 3, male mold plate 4, mold feet 6, ejector frame 7, and second sealing plate 2 are sequentially arranged on one side of the first sealing plate 1. A positioning ring 5 is provided on the outer surface of the first sealing plate 1, and the positioning ring 5 is coaxially arranged with the gate of the first sealing plate 1. Two mold feet 6 are provided between the male mold plate 4 and the second sealing plate 2, and the ejector frame 7 is provided between the two mold feet 6. A sliding assembly is provided between the female mold plate 3 and the male mold plate 4, and the sliding assembly consists of a slider 10 and a slide seat 8. The slide 10 is composed of a guide post 11 and an insert 12. The slide 10 has a slide seat 8 at the end facing the male mold core. The slide 10 is slidably connected to the male mold core 4. The sliding assembly has at least one insert 14, and each insert 14 is installed on the slide seat 8. The slide 10 has an insert 12 at the end facing the slide seat 8. One end of each insert 14 is set in the insert 12. The insert 12 positions and fixes each insert 14 on the slide seat 8. The other end of the slide 10 has a groove 15. The groove 15 has a guide post 11. The lower end of the guide post 11 is fixedly installed on the end face of the male mold core 4. The guide post 11 is slidably connected to the slide 10.
[0019] Both the female template 3 and the male template 4 are equipped with cooling water channels to facilitate the cooling and molding of the injection molded parts.
[0020] Two pressure plates 9 are arranged parallel to each other on both sides of the slider 10. The pressure plates 9 are connected to the male template 4 by bolts. The slider 10 slides between the two pressure plates 9, and the two pressure plates 9 control the direction of movement of the slider 10.
[0021] The insert 12 is provided with a cover plate 13, and the two ends of the cover plate 13 are fixedly connected to the slider 10 by bolts, thereby fixing the insert 12.
[0022] The inclined guide post 11 has a longitudinally arranged straight surface 16 on the side away from the row seat 8.
[0023] Two impact pins 17 are symmetrically arranged on the inner wall of the slide groove 15. The impact pins 17 are slidably connected to the slider 10. The side of the impact pin 17 facing the inclined guide post 11 outside the slider 10 is a straight surface 16. The straight surface 16 of the impact pin 17 is adapted to the straight surface 16 of the inclined guide post 11. The side of the impact pin 17 away from the inclined guide post 11 is an inclined surface.
[0024] The striking pin 17 is provided with a spring 18, which is located at one end of the striking pin 17 inside the slider 10. One end of the spring 18 is connected to the end of the striking pin 17, and the other end of the spring 18 is connected to the slider 10. The springs 18 on both sides extend and push the two striking pins 17 outward, so that the straight surface 16 of the striking pin 17 contacts the straight surface 16 of the inclined guide post 11.
[0025] In the mold development of a CAN bus gas vehicle leak alarm device described in the embodiment, after the female mold plate 3 and male mold plate 4 are separated during production, the slider 10 is pushed to a limited position. The injection molding machine suction cup picks up at least one insert 14 from the fixture and automatically places it into the preset position of the slide seat 8. Then, the insert 12 is installed, and one end of each insert 14 is installed in the insert 12. Then, the cover plate 13 is installed on the insert 12 and fixed with bolts. After the fixing is completed, the mold can be closed. When the slider 10 is pushed into the mold, the inclined surface of the impact pin 17 on the slider 10 collides with the inclined guide post 11. The spring 18 is compressed and retracted under force, the impact pin 17 retracts, and the slider 10 smoothly enters the mold. After injection molding, the mold is opened. Due to the inclination, the inclined guide post 11 exerts a backward force on the slider 10. At this time, the straight surface 16 of the impact pin 17 is subjected to force and the direction of the force is perpendicular to the movement direction of the impact pin 17, causing the impact pin 17 to retract. Thus, the force of the inclined guide post 11 can bring out the slider 10 to retract smoothly, achieving the purpose of demolding.
[0026] The parts of this utility model not described in detail are prior art. Although this utility model has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. However, those skilled in the art should understand that various changes in form and detail can be made to this utility model without departing from the spirit and scope of this utility model as defined by the appended claims, and all such changes shall be within the protection scope of this utility model.
Claims
1. A mold for developing a CAN bus gas vehicle leak alarm device, comprising a first sealing plate (1), a female template (3), a male template (4), mold feet (6), an ejector frame (7), a second sealing plate (2), and a sliding assembly. The first sealing plate (1) has the female template (3), male template (4), mold feet (6), ejector frame (7), and second sealing plate (2) arranged sequentially on one side. A positioning ring (5) is provided on the outer surface of the first sealing plate (1), and the positioning ring (5) is coaxially arranged with the gate of the first sealing plate (1). Two mold feet (6) are provided between the male template (4) and the second sealing plate (2), and an ejector frame (7) is provided between the two mold feet (6). The mold is characterized by: A sliding assembly is provided between the female template (3) and the male template (4). The sliding assembly consists of a slider (10), a slide seat (8), an inclined guide post (11), and an insert (12). The slider (10) has a slide seat (8) at one end facing the male mold core. The slider (10) is slidably connected to the male template (4). The sliding assembly is provided with at least one insert (14). Each insert (14) is installed on the slide seat (8). The slider (10) has an insert (12) at one end facing the slide seat (8). One end of each insert (14) is set in the insert (12). The other end of the slider (10) is provided with a groove (15). An inclined guide post (11) is provided in the groove (15). The lower end of the inclined guide post (11) is fixedly installed on the end face of the male template (4). The inclined guide post (11) is slidably connected to the slider (10).
2. The mold for developing a CAN bus gas vehicle leak alarm device according to claim 1, characterized in that: Both the female template (3) and the male template (4) are provided with cooling water channels.
3. The mold for developing a CAN bus gas vehicle leak alarm device according to claim 1, characterized in that: Two pressure plates (9) are provided on both sides of the slider (10), and the pressure plates (9) are connected to the male template (4) by bolts.
4. The mold for developing a CAN bus gas vehicle leak alarm device according to claim 1, characterized in that: The insert (12) is provided with a cover plate (13), and the two ends of the cover plate (13) are fixedly connected to the slider (10) by bolts.
5. The mold for developing a CAN bus gas vehicle leak alarm device according to claim 1, characterized in that: The inclined guide post (11) has a longitudinally arranged straight surface (16) on the side away from the row seat (8).
6. The mold for developing a CAN bus gas vehicle leak alarm device according to claim 1, characterized in that: The inner wall of the slide (15) is symmetrically provided with two strikers (17). The strikers (17) are slidably connected to the slider (10). The striker (17) has a straight surface (16) on the side of the outside of the slider (10) facing the inclined guide post (11). The straight surface (16) of the striker (17) is adapted to the straight surface (16) of the inclined guide post (11). The side of the striker (17) away from the inclined guide post (11) is an inclined surface.
7. The mold for developing a CAN bus gas vehicle leak alarm device according to claim 6, characterized in that: The striker (17) is provided with a spring (18), which is located at one end of the striker (17) inside the slider (10). One end of the spring (18) is connected to the end of the striker (17), and the other end of the spring (18) is connected to the slider (10).