Charging socket front panel injection mold with insert fool-proof mechanism

Abstract

The charging socket front panel injection mold with the insert fool-proof mechanism comprises a front mold, a rear mold, a mold core and a pitched roof, and a positioning block which protrudes forwards and is used for being inserted into an insert positioning hole is arranged on the front side face of the upper end of the pitched roof; the fool-proof mechanism is arranged on the pitched roof and comprises a first hole formed in the front side face of the upper end of the pitched roof, a second hole formed in the rear side face of the upper end of the pitched roof and a movable pin slidably embedded in the second hole, the sectional area of the first hole is smaller than that of the second hole, and the first hole penetrates through the bottom wall of the second hole; a limiting column which protrudes forwards and is inserted into the first hole in a sliding mode is arranged on the front end face of the movable pin, so that the distance between the limiting column and the positioning block in the vertical direction is larger than or equal to the distance between the positioning hole and the lower end face of the insert and smaller than the distance between the positioning hole and the upper end face of the insert. And the limiting column can be driven to extend out of or retract into the first hole, so that the insert is forced to be just placed uprightly or does not affect mold closing injection molding, the structure is exquisite, and the fool-proof effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold for a charging socket front panel with an insert anti-foolproofing mechanism. Background Art

[0002] With the development of new energy vehicles, especially pure electric vehicles, more and more parking lots and gas stations are equipped with charging piles. Most of these charging piles charge by inserting a charging gun into the charging hole of the charging socket panel of the new energy vehicle. In actual use, the charging gun needs to be snapped onto the charging panel to maintain charging stability. This type of snapping is mostly achieved by setting an insert in the charging hole of the front panel of the charging socket.

[0003] The posture of the insert in the front panel of the charging socket will seriously affect the snap-fit ​​effect. Once it is installed upside down, it is difficult to achieve the snap-fit ​​function. In order to improve service life and versatility, most of the existing inserts are made of alloy materials and are mostly integrated into the front panel of the charging socket by injection molding. Its structure is difficult to change. It is not realistic to set an anti-fool structure on the insert itself. It can only be manually identified whether it is placed upside down during the insert placement process before injection molding. This method has a certain error rate. The upside-down insert will not only cause the snap-fit ​​failure, but in serious cases, it will also interfere with other parts in the injection mold, causing damage to the injection mold during mold closing. Utility Model Content

[0004] The purpose of the present utility model is to solve one or more problems in the prior art and to provide a charging socket front panel injection mold with an insert anti-fouling mechanism.

[0005] To achieve the above-mentioned object, the technical solution provided by the present invention is an injection mold for a front panel of a charging socket with an insert anti-fool mechanism, wherein the insert is provided with a positioning hole, the distance between the positioning hole and the upper end surface of the insert is greater than the distance between the positioning hole and the lower end surface of the insert, the injection mold comprises a front mold, a rear mold, a mold core, and a slanted top, the slanted top extends obliquely, the lower end of the slanted top is slidably provided on the mold core, the front side surface of the upper end of the slanted top is provided with a forwardly protruding positioning block, the positioning block is used to be inserted into the positioning hole to realize the placement of the insert;

[0006] The inclined top is also provided with an anti-foolproof mechanism for preventing the insert from being placed upside down. The anti-foolproof mechanism includes a first hole opened on the front side surface of the upper end portion of the inclined top, a second hole opened on the rear side surface of the upper end portion of the inclined top, and a movable pin slidably embedded in the second hole, the cross-sectional area of ​​the first hole being smaller than the cross-sectional area of ​​the second hole, the first hole passing through the bottom wall of the second hole, the front end surface of the movable pin being provided with a limit column protruding forward, the limit column being slidably inserted in the first hole, the distance between the limit column and the positioning block in the upper and lower directions being greater than or equal to the distance between the positioning hole and the lower end surface of the insert, and less than the distance between the positioning hole and the upper end surface of the insert, the movable pin having a first working position and a second working position, when the movable pin is in the first working position, the limit column extends forward and protrudes from the orifice of the first hole, and when the movable pin is in the second working position, the limit column is completely retracted into the first hole.

[0007] Preferably, when the movable pin is in the first working position, the front end surface of the limiting column is located below and in front of the positioning block.

[0008] Preferably, the anti-fool mechanism also includes a cover plate and a spring, the cover plate is detachably connected to the rear side surface of the upper end of the inclined top, the cover plate is used to cover the opening of the second hole, the spring is arranged in the second hole, and the two ends of the spring are respectively pressed against the rear end surface of the movable pin and the cover plate, and the spring has a tendency to drive the movable pin to slide to the first working position.

[0009] Further preferably, a matching groove is further provided on the rear side surface of the upper end portion of the inclined top, and the matching groove passes through the left and right end surfaces of the upper end portion of the inclined top, and the orifice portion of the second hole is provided on the bottom wall of the matching groove.

[0010] Further preferably, when the cover plate is connected to the upper end of the slanted top, the cover plate is embedded in the mating groove, the left and right side surfaces of the cover plate are in the same plane as the left and right side surfaces of the upper end of the slanted top, and the rear side surface of the cover plate is in the same plane as the rear side surface of the slanted top.

[0011] Further preferably, the upper end portion of the inclined top is thicker and the lower end portion of the inclined top is thinner, and the matching groove also passes through the lower side surface of the upper end portion of the inclined top.

[0012] Further preferably, the cover plate is detachably connected to the upper end of the inclined roof by a bolt that passes through the cover plate and is threadably connected to the inclined roof.

[0013] Further preferably, the front side of the cover plate is provided with an accommodating hole for accommodating the end of the spring.

[0014] Preferably, the lower end face of the limiting column is an inclined surface extending downward from front to rear, and the inclined surface conflicts with the mold core. When the mold is closed, the mold core moves upward relative to the inclined top and slides relative to the inclined surface. The sliding is used to push the inclined surface in the opposite direction, so that the movable pin slides backward to the second working position.

[0015] Further preferably, the mold core is provided with a matching surface matching the inclined surface.

[0016] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0017] When the movable pin slides forward to the first working position, the distance between the limit column and the positioning block can force the insert to be correctly placed to achieve anti-mold effect; and when the movable pin moves backward to the second working position, the limit column can be completely retracted into the first hole without affecting the mold closing and injection molding; the structure is sophisticated and the anti-mold effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the utility model, with the front mold hidden.

[0019] Figure 2 yes Figure 1 Schematic top view of .

[0020] Figure 3 yes Figure 2 Schematic cross-sectional view in the AA direction.

[0021] Figure 4 yes Figure 3 A partial enlarged schematic diagram of point B in the middle.

[0022] Figure 5 yes Figure 3 A three-dimensional enlarged schematic diagram of the middle sloping roof.

[0023] Figure 6 yes Figure 3 Schematic diagram of the assembly and decomposition of the mid-sloping roof.

[0024] Among them: 1. Insert; 2. Positioning hole; 3. Charging socket front panel; 10. Rear mold; 20. Mold core; 21. Mating surface; 30. Sloping top; 31. Positioning block; 32. First hole; 33. Second hole; 34. Movable pin; 341. Limiting column; 35. Cover plate; 351. Bolt; 352. Accommodating hole; 36. Spring; 37. Mating groove. DETAILED DESCRIPTION

[0025] like Figures 1 to 6As shown, the utility model provides an injection mold for the front panel of a charging socket with an insert anti-mistake mechanism, the insert 1 is provided with a positioning hole 2, the distance between the positioning hole 2 and the upper end surface of the insert 1 is greater than the distance between the positioning hole 2 and the lower end surface of the insert 1, the injection mold includes a front mold (not shown in the figure), a rear mold 10, a mold core 20, and a slanted top 30, the slanted top 30 extends obliquely, the upper end of the slanted top 30 is thicker and the lower end is thinner, the lower end of the slanted top 30 is slidably penetrated on the mold core 20, and the lower end of the slanted top 30 can move up and down relative to the mold core 20 under the drive of the rear mold 10, the front side surface of the upper end of the slanted top 30 is provided with a forwardly protruding positioning block 31, the positioning block 31 is used to insert the positioning hole 2 to realize the placement of the insert 1; the slanted top 30 is also provided with an anti-mistake mechanism for preventing the insert 1 from being placed upside down, the anti-mistake mechanism includes a hole opened on the slanted top The first hole 32 on the front side of the upper end of 30, the second hole 33 on the rear side of the upper end of the inclined top 30, and the movable pin 34 slidably embedded in the second hole 33, the cross-sectional area of ​​the first hole 32 is smaller than the cross-sectional area of ​​the second hole 33, the first hole 32 passes through the bottom wall of the second hole 33, the front end face of the movable pin 34 is provided with a forward protruding limit column 341, the limit column 341 is slidably inserted in the first hole 32, the distance between the limit column 341 and the positioning block 31 in the up and down directions is equal to the distance between the positioning hole 2 and the lower end face of the insert 1, the movable pin 34 has a first working position and a second working position, when the movable pin 34 is in the first working position, the limit column 341 extends forward and protrudes from the orifice of the first hole 32, when the movable pin 34 is in the second working position, the limit column 341 is completely retracted into the first hole 32.

[0026] The advantage of this arrangement is that when the movable pin slides forward to the first working position, the distance between the limit column and the positioning block can force the insert to be correctly placed to achieve anti-mistake effect, and when the movable pin moves backward to the second working position, the limit column can be completely retracted into the first hole without affecting the mold closing and injection molding; the structure is sophisticated and the anti-mistake effect is good.

[0027] To ensure the foolproof effect, further, when the movable pin 34 is in the first working position, the front end surface of the limiting column 341 is located in the front and lower part of the positioning block 31 .

[0028] Furthermore, the anti-fool mechanism also includes a cover plate 35 and a spring 36. The cover plate 35 is detachably connected to the rear side surface of the upper end of the inclined top 30. The cover plate 35 is used to cover the opening of the second hole 33. The spring 36 is arranged in the second hole 33. The two ends of the spring 36 are respectively pressed against the rear end surface of the movable pin 34 and the cover plate 35. The spring 36 has a tendency to drive the movable pin 34 to slide to the first working position.

[0029] In order to simplify the structure of the injection mold and reduce the driving device, the mold closing power is used to drive the movable pin 34 to slide to the second working position. In this embodiment, the lower end face of the limit column 341 is an inclined surface extending downward from front to rear, and the inclined surface conflicts with the mold core 20. When the mold is closed, the mold core 20 moves upward relative to the inclined top 30 and produces relative sliding between the inclined surface. The sliding is used to push the inclined surface in the opposite direction, so that the movable pin 34 slides backward to the second working position. Furthermore, the mold core 20 is provided with a mating surface 21 that matches the inclined surface.

[0030] In order to reduce the outward bulging of the upper end of the inclined top 30 and facilitate the detachable connection of the cover plate, in this embodiment, a mating groove 37 is also provided on the rear side surface of the upper end of the inclined top 30. The mating groove 37 passes through the left and right end surfaces of the upper end of the inclined top 30, and the mating groove 37 also passes through the lower side surface of the upper end of the inclined top 30. The orifice of the second hole 33 is provided on the bottom wall of the mating groove 37. When the cover plate 35 is connected to the upper end of the inclined top 30, the cover plate 35 is embedded in the mating groove 37. The left and right side surfaces of the cover plate 35 are in the same plane as the left and right side surfaces of the upper end of the inclined top 30, and the rear side surface of the cover plate 35 is in the same plane as the rear side surface of the inclined top 30. Furthermore, the cover plate 35 is detachably connected to the upper end of the inclined top 30 by a bolt 351 that passes through the upper and lower ends of the cover plate 35 and is threadedly connected to the inclined top 30.

[0031] In order to improve the stability of the spring 36 during use, in this embodiment, the front side of the cover plate 35 is provided with a receiving hole 352 for receiving the end of the spring 36.

[0032] It should be noted that in the above embodiment, the cross-sectional shapes of the first hole 32 and the second hole 33 are both rectangular. This arrangement can also prevent the movable pin 34 and the limiting column 341 from rotating. At the same time, for ease of processing, the limiting column 341 and the movable pin 34 are preferably formed in one piece.

[0033] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. An injection mold for a front panel of a charging socket with an insert anti-fouling mechanism, wherein the insert is provided with a positioning hole, the distance between the positioning hole and the upper end surface of the insert being greater than the distance between the positioning hole and the lower end surface of the insert, the injection mold comprising a front mold, a back mold, a mold core, and a slanted top, the slanted top extending obliquely, the lower end of the slanted top slidably passing through the mold core, the front side surface of the upper end of the slanted top being provided with a forwardly protruding positioning block, the positioning block being configured to be inserted into the positioning hole to enable placement of the insert; characterized in that: The inclined top is also provided with an anti-foolproof mechanism for preventing the insert from being placed upside down. The anti-foolproof mechanism includes a first hole opened on the front side surface of the upper end portion of the inclined top, a second hole opened on the rear side surface of the upper end portion of the inclined top, and a movable pin slidably embedded in the second hole, the cross-sectional area of ​​the first hole being smaller than the cross-sectional area of ​​the second hole, the first hole passing through the bottom wall of the second hole, the front end surface of the movable pin being provided with a limit column protruding forward, the limit column being slidably inserted in the first hole, the distance between the limit column and the positioning block in the upper and lower directions being greater than or equal to the distance between the positioning hole and the lower end surface of the insert, and less than the distance between the positioning hole and the upper end surface of the insert, the movable pin having a first working position and a second working position, when the movable pin is in the first working position, the limit column extends forward and protrudes from the orifice of the first hole, and when the movable pin is in the second working position, the limit column is completely retracted into the first hole.

2. The injection mold for the front panel of the charging socket with an insert anti-fool mechanism according to claim 1, characterized in that: When the movable pin is in the first working position, the front end surface of the limiting column is located in the front and lower part of the positioning block.

3. The injection mold for the front panel of the charging socket with an insert anti-fool mechanism according to claim 1, characterized in that: The anti-fool mechanism also includes a cover plate and a spring. The cover plate is detachably connected to the rear side surface of the upper end of the inclined top. The cover plate is used to cover the opening of the second hole. The spring is arranged in the second hole. The two ends of the spring are respectively pressed against the rear end surface of the movable pin and the cover plate. The spring has a tendency to drive the movable pin to slide to the first working position.

4. The injection mold for the front panel of the charging socket with the insert anti-fool mechanism according to claim 3, characterized in that: A matching groove is further provided on the rear side surface of the upper end portion of the inclined top. The matching groove passes through the left and right end surfaces of the upper end portion of the inclined top, and the orifice of the second hole is provided on the bottom wall of the matching groove.

5. The injection mold for the front panel of the charging socket with the insert foolproof mechanism according to claim 4, characterized in that: When the cover plate is connected to the upper end of the sloping top, the cover plate is embedded in the matching groove, the left and right side surfaces of the cover plate are located in the same plane as the left and right side surfaces of the upper end of the sloping top, and the rear side surface of the cover plate is located in the same plane as the rear side surface of the sloping top.

6. The injection mold for the front panel of the charging socket with the insert foolproof mechanism according to claim 5, characterized in that: The upper end portion of the inclined top is relatively thick while the lower end portion of the inclined top is relatively thin, and the matching groove also passes through the lower side surface of the upper end portion of the inclined top.

7. The injection mold for the front panel of the charging socket with the insert foolproof mechanism according to claim 4, characterized in that: The cover plate is detachably connected to the upper end of the inclined roof by a bolt that passes through the cover plate and is threadably connected to the inclined roof.

8. The injection mold for the front panel of the charging socket with an insert foolproof mechanism according to claim 3, characterized in that: The front side of the cover plate is provided with an accommodating hole for accommodating the end of the spring.

9. The injection mold for the front panel of the charging socket with an insert foolproof mechanism according to claim 1, characterized in that: The lower end face of the limiting column is an inclined surface extending downward from the front to the rear, and the inclined surface conflicts with the mold core. When the mold is closed, the mold core moves upward relative to the inclined top and slides relative to the inclined surface. The sliding is used to push the inclined surface in the opposite direction, so that the movable pin slides backward to the second working position.

10. The injection mold for the front panel of the charging socket with the insert foolproof mechanism according to claim 9, characterized in that: The mold core is provided with a matching surface matching the inclined surface.

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