Quick connector mold for producing vehicle-mounted charging plastic shell

By incorporating lubrication and auxiliary devices into the production mold for the plastic casing of vehicle charging, the problem of jamming caused by excessive friction between the guide pillar and the guide groove was solved, thereby improving production efficiency and mold precision and ensuring product quality.

CN224060384UActive Publication Date: 2026-03-31DONGGUAN YIHE PRECISION PLASTIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

In existing molds for producing plastic shells for vehicle charging, excessive friction causes jamming between the guide pillars and guide grooves during relative movement, affecting production efficiency and mold precision.

Method used

A lubrication device is installed in the mold, including a storage box, hollow tube, sponge ring and lubricating oil supply system, to reduce the friction coefficient between the guide pillar and the guide groove, and to help the product get out of the mold through auxiliary devices, so as to avoid wear and jamming.

Benefits of technology

It improves the production efficiency and precision of molds, reduces wear, prevents jamming, and ensures smooth demolding and high-quality production of products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plastic molds, in particular to a quick connector mold for producing a vehicle-mounted charging plastic shell. The plastic mold comprises a first plastic mold body, a second plastic mold body, four guide columns, four guide grooves and two mold grooves, the guide columns are connected with the inner walls of the guide grooves in a sliding mode, lubricating devices are arranged on the two sides of the first plastic mold body, and each lubricating device comprises two supporting plates. And the two supporting plates are fixedly connected with the two sides of a first plastic mold correspondingly, a storage box is fixedly connected to the surfaces of the supporting plates, two hollow pipes are connected into the storage box in a communicating mode, and sponge rings are fixedly connected to the arc surfaces of the guide columns. The problems that the production efficiency is affected, abrasion is aggravated and the precision of the mold is affected due to the fact that the mold opening and closing actions and the like of the mold cannot be smoothly carried out due to clamping stagnation caused by overlarge friction force when the mold is used for a long time and the relative movement of the guide column and the guide groove are solved.
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Description

Technical Field

[0001] This utility model relates to the field of plastic mold technology, and in particular to a quick connector mold for producing a plastic shell for vehicle charging. Background Technology

[0002] Quick-connector molds for automotive charging plastic housings are specialized molds used for injection molding quick-connectors for automotive charging plastic housings. In today's automotive charging plastic housing manufacturing industry, the performance of quick-connector molds plays a decisive role in product quality and production efficiency. With the rapid development of the automotive industry, the demand for automotive charging equipment is increasing daily. This requires quick-connector molds to produce high-precision products efficiently and stably. However, in the actual production process, due to the frequent relative movement between the guide pillars and guide grooves, there is significant friction between them. This wear further reduces the fitting accuracy between them, thus affecting the overall precision of the mold.

[0003] Regarding the above-mentioned and existing related technologies, the inventor believes that the following defects often exist: after long-term use, the guide pillars and guide grooves may become stuck due to excessive friction during relative movement, making it difficult for the mold to open and close smoothly. This not only affects production efficiency but also exacerbates wear and affects the precision of the mold. Therefore, in order to address the above problems, a quick connector mold for the production of vehicle charging plastic shells is proposed. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that in the existing technology, after long-term use of the mold, the guide pillar and guide groove will get stuck due to excessive friction when they move relative to each other, which will prevent the mold opening and closing actions from being smooth. This will not only affect production efficiency, but also aggravate wear and affect the accuracy of the mold. Therefore, a quick connector mold for the production of vehicle charging plastic shell is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quick connector mold for producing a vehicle charging plastic shell, comprising a first plastic mold, a second plastic mold, four guide pillars, four guide grooves, and two mold grooves. The guide pillars are slidably connected to the inner walls of the guide grooves. Lubrication devices are provided on both sides of the first plastic mold. The lubrication devices include two support plates, which are respectively fixedly connected to both sides of the first plastic mold. A storage box is fixedly connected to the surface of the support plate. Two hollow tubes are connected in communication within the storage box. A sponge ring is fixedly connected to the arc surface of the guide pillar. One end of the hollow tube penetrates into the first plastic mold and is connected in communication with the sponge ring.

[0006] The effect achieved by the above-mentioned components is as follows: by setting up a lubrication device, the friction coefficient between the guide pillar and the guide groove is reduced when they move relative to each other, making the movement smoother and thus improving production efficiency. This avoids the possibility of jamming due to excessive friction when the guide pillar and guide groove move relative to each other after long-term use of the mold, which would prevent the mold opening and closing actions from being performed smoothly. This would not only affect production efficiency, but also accelerate wear and affect the precision of the mold.

[0007] Preferably, both sides of the storage box are fixedly connected to a fixing plate, and a rotating shaft is fixedly connected to the side of the fixing plate that is close to each other. A protective cover is rotatably connected to the arc surface of the rotating shaft. A long plate is fixedly connected to one side of the protective cover. A round hole is opened on the surface of the long plate. A limiting plate is fixedly connected to the surface of the storage box. A threaded rod is threaded into the limiting plate. The threaded rod is threadedly connected to the inner wall of the round hole of the long plate.

[0008] The effect achieved by the above components is to reduce the contact area between lubricating oil and air, slow down the oxidation rate of lubricating oil, and prevent the formation of acidic substances and precipitates after the lubricating oil is oxidized, thereby reducing the performance of the lubricating oil and shortening its service life.

[0009] Preferably, the arc surface of the rotating shaft is fitted with two torsion springs, and the two ends of the torsion springs are respectively fixedly connected to the fixing plate and the protective cover.

[0010] The aforementioned components achieve the following effect: under the action of the torsion spring, the protective cover is quickly and automatically opened and fixed at a certain angle, thus improving the convenience of the device.

[0011] Preferably, a sealing gasket is fixedly connected to the surface of the protective cover, and the surface of the sealing gasket is slidably connected to the storage box.

[0012] The effect achieved by the above components is that by setting a sealing gasket, the tiny gap between the protective cover and the storage box can be filled, preventing external contaminants such as dust, moisture, and impurities from entering the storage box and affecting the lubrication effect.

[0013] Preferably, the bottom surface of the second plastic mold has two through holes, and the inner wall of the through holes of the second plastic mold is provided with an auxiliary device. The auxiliary device includes two drive rods, which are respectively threaded to the inner walls of the two through holes of the second plastic mold. A circular plate is fixedly connected to one end of each drive rod, and the circular plate is slidably connected to the inner wall of the through hole of the second plastic mold. An insertion hole is provided on the threaded surface of the drive rod. Two square plates are fixedly connected to the bottom surface of the second plastic mold, and an insert rod is slidably inserted into the square plate. The insert rod is slidably connected to the inner wall of the insertion hole of the drive rod, and a pull plate is fixedly connected to one end of the insert rod.

[0014] The effect achieved by the above-mentioned components is that, by setting up auxiliary devices, the product is helped to detach from the mold groove of the second plastic mold after the mold is completed, so that the product can be taken out for subsequent processing or packaging. This avoids the product being subjected to excessive external force pulling or twisting when it is demolded from the mold groove, which could lead to deformation, cracking or surface scratches and other damage.

[0015] Preferably, the arc surface of the insertion rod is fitted with a spring, and the two ends of the spring are fixedly connected to the pull plate and the square plate, respectively.

[0016] The effect achieved by the above components is that, under the action of the spring, the insertion rod is automatically springed back and inserted into the drive rod insertion hole, thus improving the practicality of the device.

[0017] Preferably, a rotating plate is fixedly connected to the end of the drive rod away from the circular plate.

[0018] The effect achieved by the above components is that by setting up a rotating plate, it is convenient for the operator to apply force to rotate the drive rod, and the rotation of the drive rod can be achieved with less effort compared to directly rotating the drive rod.

[0019] 1. In this utility model, by setting a lubrication device, the friction coefficient between the guide pillar and the guide groove is reduced when they move relative to each other, making the movement smoother and thus improving production efficiency. This avoids the possibility of jamming due to excessive friction when the guide pillar and guide groove move relative to each other after long-term use of the mold, which would prevent the mold opening and closing actions from being performed smoothly. This would not only affect production efficiency but also increase wear and affect the precision of the mold.

[0020] 2. In this utility model, by setting an auxiliary device, the product is helped to detach from the mold groove of the second plastic mold after the mold is completed, so that the product can be taken out for subsequent processing or packaging. This avoids the product being subjected to excessive external force pulling or twisting when it is demolded from the mold groove, which could lead to deformation, cracking or surface scratches and other damage. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the lubrication device in this utility model;

[0023] Figure 3 This is a partial structural diagram of the lubrication device in this utility model;

[0024] Figure 4 In this utility model Figure 2 Enlarged view of point A;

[0025] Figure 5 In this utility model Figure 2 Enlarged view of point C;

[0026] Figure 6 This is a schematic diagram of the auxiliary device in this utility model;

[0027] Figure 7 This is a partial structural diagram of the auxiliary device in this utility model.

[0028] Legend: 1. First plastic mold; 2. Second plastic mold; 3. Guide pillar; 4. Lubrication device; 401. Storage box; 402. Hollow tube; 403. Support plate; 404. Sponge ring; 405. Fixing plate; 406. Rotating shaft; 407. Protective cover; 408. Torsion spring; 409. Long plate; 410. Limiting plate; 411. Threaded rod; 412. Sealing gasket; 5. Auxiliary device; 51. Drive rod; 52. Round plate; 53. Square plate; 54. Insert rod; 55. Pull plate; 56. Spring; 57. Rotating plate; 6. Mold groove; 7. Guide groove. Detailed Implementation

[0029] Reference Figure 1 , Figure 2 and Figure 6 As shown, this utility model provides a technical solution: a quick connector mold for producing a vehicle charging plastic shell, including a first plastic mold 1, a second plastic mold 2, four guide pillars 3, four guide grooves 7, and two mold slots 6. The guide pillars 3 are slidably connected to the inner walls of the guide grooves 7. Lubrication devices 4 are provided on both sides of the first plastic mold 1. By setting the lubrication devices 4, the friction coefficient between the guide pillars 3 and the guide grooves 7 is reduced during relative movement, making the movement smoother and thus improving production efficiency. This also prevents the guide pillars 3 and guide grooves 7 from deteriorating due to friction during relative movement after long-term use of the mold. Excessive friction can cause jamming, hindering the smooth opening and closing of the mold. This not only affects production efficiency but also exacerbates wear and reduces mold precision. The bottom surface of the second plastic mold has two through holes, and the inner wall of the through holes of the second plastic mold 2 is equipped with an auxiliary device 5. By setting the auxiliary device 5, the product can be removed from the mold groove 6 of the second plastic mold 2 after injection molding, so that it can be taken out for subsequent processing or packaging. This avoids the product being subjected to excessive external force pulling or twisting when demolding from the mold groove 6, which could lead to deformation, cracking, or surface scratches.

[0030] The specific setup and function of its lubrication device 4 and auxiliary device 5 will be described in detail below.

[0031] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5As shown in this embodiment: the lubrication device 4 includes two support plates 403, which are fixedly connected to both sides of the first plastic mold 1. A storage box 401 is fixedly connected to the surface of the support plate 403. Two hollow tubes 402 are connected inside the storage box 401. A sponge ring 404 is fixedly connected to the arc surface of the guide post 3. One end of the hollow tube 402 passes through the first plastic mold 1 and is connected to the sponge ring 404. Fixing plates 405 are fixedly connected to both sides of the storage box 401. A rotating shaft 406 is fixedly connected to the side of the fixing plates 405 that is close to each other. A protective cover 407 is rotatably connected to the arc surface of the rotating shaft 406. A long plate 409 is fixedly connected to one side of the protective cover 407. A round hole is opened on the surface of the long plate 409. A limiting plate 410 is fixedly connected to the surface of the storage box 401. A threaded rod 411 is threadedly inserted into the limiting plate 410. The threaded connection to the inner wall of the circular hole in the long plate 409 reduces the contact area between the lubricating oil and air, slowing down the oxidation rate of the lubricating oil. This prevents the formation of acidic substances and precipitates after the lubricating oil oxidizes, thus reducing its performance and shortening its service life. Two torsion springs 408 are fitted on the arc surface of the rotating shaft 406. The two ends of the torsion springs 408 are fixedly connected to the fixed plate 405 and the protective cover 407, respectively. Under the force of the torsion springs 408, the protective cover 407 can be quickly and automatically opened and fixed at a certain angle, improving the convenience of the device. A sealing gasket 412 is fixedly connected to the surface of the protective cover 407. The surface of the sealing gasket 412 is slidably connected to the storage box 401. By setting the sealing gasket 412, the tiny gap between the protective cover 407 and the storage box 401 can be filled, preventing dust, moisture, impurities and other external contaminants from entering the storage box 401 and affecting the lubrication effect.

[0032] Reference Figure 6 and Figure 7As shown, specifically, the auxiliary device 5 includes two drive rods 51, which are threadedly connected to the inner walls of the perforations of the two second plastic molds 2. A circular plate 52 is fixedly connected to one end of each drive rod 51, and the circular plate 52 is slidably connected to the inner wall of the perforation of the second plastic mold 2. An insertion hole is provided on the threaded surface of the drive rod 51. Two square plates 53 are fixedly connected to the bottom surface of the second plastic mold 2, and an insertion rod 54 is slidably inserted into the square plate 53. The insertion rod 54 is slidably connected to the inner wall of the insertion hole of the drive rod 51, and a pull plate is fixedly connected to one end of the insertion rod 54. 55. A spring 56 is fitted onto the arc surface of the insertion rod 54. The two ends of the spring 56 are fixedly connected to the pull plate 55 and the square plate 53, respectively. Under the force of the spring 56, the insertion rod 54 is automatically springed back and inserted into the insertion hole of the drive rod 51, which improves the practicality of the device. A rotating plate 57 is fixedly connected to the end of the drive rod 51 away from the circular plate 52. By setting the rotating plate 57, it is convenient for the operator to apply force to rotate the drive rod 51. Compared with directly rotating the drive rod 51, it is easier to achieve the rotation of the drive rod 51.

[0033] Working principle: When the operator needs to use the lubrication device 4, the threaded rod 411 is rotated, causing it to rotate within the limiting plate 410 and exit through the circular hole in the long plate 409. At this time, the torsion spring 408 releases the force under torsion, causing the protective cover 407 and the sealing gasket 412 to rotate on the arc surface of the rotating shaft 406, and then be fixed at a certain angle. Lubricating oil is then added to the storage box 401, and the lubricating oil enters the hollow tube 402, flows within the hollow tube 402, and then flows out from one end of the hollow tube 402 onto the sponge ring 404. The sponge ring 404 will utilize its own properties to soak... The guide post 3 is moved to the arc surface of the guide post 3. Then, the first plastic mold 1 and the second plastic mold 2 drive the guide post 3 and the guide groove 7 to move relative to each other, thus completing the lubrication. By setting the lubrication device 4, the friction coefficient between the guide post 3 and the guide groove 7 is reduced when they move relative to each other, making the movement smoother and thus improving production efficiency. This avoids the possibility that the guide post 3 and the guide groove 7 may get stuck due to excessive friction when they move relative to each other after long-term use of the mold, which would prevent the mold opening and closing actions from being smooth. This would not only affect production efficiency, but also aggravate wear and affect the precision of the mold.

[0034] Working principle: When the operator needs to use the auxiliary device 5, they pull the pull plate 55. The pull plate 55 drives the insertion rod 54 to slide inside the square plate 53, and then slides out from the insertion hole of the drive rod 51. At this time, the spring 56 is in a stretched state. Then, the rotating plate 57 is rotated, and the rotating plate 57 drives the drive rod 51 to push into the through hole of the first plastic mold 1. The drive rod 51 drives the round plate 52 to push the injection-molded product out of the mold groove 6. By setting the auxiliary device 5, the product is helped to detach from the mold groove 6 of the second plastic mold 2 after the mold is injection-molded, so that the product can be taken out for subsequent processing or packaging. This avoids the product being subjected to excessive external force pulling or twisting when it is demolded from the mold groove 6, which could lead to deformation, cracking or surface scratches and other damage.

[0035] 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.

Claims

1. A quick connector mold for producing a plastic case for a vehicle-mounted charging device, comprising a first plastic mold (1), a second plastic mold (2), four guide posts (3), and four guide grooves (7), and two mold grooves (6), characterized in that: The guide column (3) is in sliding connection with the inner wall of the guide groove (7), both sides of the first plastic mold (1) are provided with lubricating devices (4), the lubricating device (4) comprises two support plates (403), the two support plates (403) are fixedly connected with the two sides of the first plastic mold (1) respectively, the surface of the support plate (403) is fixedly connected with a storage box (401), the storage box (401) is in communication with two hollow pipes (402) in the storage box (401), the arc surface of the guide column (3) is fixedly connected with a sponge ring (404), one end of the hollow pipe (402) penetrates into the first plastic mold (1), and the one end of the hollow pipe (402) is in communication with the sponge ring (404).

2. The quick connector mold for producing a plastic housing for vehicle charging according to claim 1, wherein: Both sides of the storage box (401) are fixedly connected with fixed plates (405), one side of the fixed plate (405) close to each other is fixedly connected with a rotating shaft (406), the arc surface of the rotating shaft (406) is rotatably connected with a protective cover (407), one side of the protective cover (407) is fixedly connected with a long plate (409), the surface of the long plate (409) is provided with a circular hole, the surface of the storage box (401) is fixedly connected with a limiting plate (410), the limiting plate (410) is in threaded connection with a threaded rod (411), and the threaded rod (411) is in threaded connection with the inner wall of the circular hole of the long plate (409).

3. The quick connector mold for producing a plastic housing for vehicle charging according to claim 2, wherein: The arc surface of the rotating shaft (406) is sleeved with two torsion springs (408), and the two ends of the torsion spring (408) are fixedly connected with the fixed plate (405) and the protective cover (407) respectively.

4. The quick connector mold for producing a plastic housing for vehicle charging according to claim 2, wherein: The surface of the protective cover (407) is fixedly connected with a sealing gasket (412), and the surface of the sealing gasket (412) is in sliding connection with the storage box (401).

5. The quick connector mold for producing a plastic housing for vehicle charging according to claim 1, wherein: The bottom surface of the second plastic mold is provided with two perforations, the inner wall of the perforation of the second plastic mold (2) is provided with an auxiliary device (5), the auxiliary device (5) comprises two drive rods (51), the two drive rods (51) are in threaded connection with the inner wall of the two perforations of the second plastic mold (2) respectively, one end of the drive rod (51) is fixedly connected with a circular plate (52), the circular plate (52) is in sliding connection with the inner wall of the perforation of the second plastic mold (2), the threaded surface of the drive rod (51) is provided with a insertion hole, the bottom surface of the second plastic mold (2) is fixedly connected with two square plates (53), the square plate (53) is in sliding connection with an insertion rod (54), the insertion rod (54) is in sliding connection with the inner wall of the insertion hole of the drive rod (51), and one end of the insertion rod (54) is fixedly connected with a pull plate (55).

6. The quick connector mold for producing a plastic housing for a vehicle charging according to claim 5, wherein: The arc surface of the insertion rod (54) is sleeved with a spring (56), and the two ends of the spring (56) are fixedly connected with the pull plate (55) and the square plate (53) respectively.

7. The quick connector mold for producing a plastic housing for a vehicle charging according to claim 5, wherein: The end, away from the circular plate (52), of the drive rod (51) is fixedly connected with a rotating plate (57).