USB connector injection molding precision control device

Abstract

The utility model discloses a USB (universal serial bus) connector injection molding precision control device, which relates to the technical field of USB connector production and comprises a base, a lower template fixedly connected to the middle of the upper end of the base, an upper mold assembly arranged at the upper end of the base and comprising a fixing rod, rod body outer end cleaning mechanisms arranged on two sides of the base, and a control module arranged on the fixing rod. The rod body outer end cleaning mechanism comprises two symmetrically-arranged L-shaped mounting frames fixedly connected to the upper end of the base, the inner end of each L-shaped mounting frame is fixedly connected with an inclined C-shaped rod, the inner end of each inclined C-shaped rod is provided with a guide groove, the inner wall of each guide groove is slidably connected with a first guide column, and the outer side of the outer end of each first guide column is fixedly connected with a first fixing ring. The inner end of the first fixing ring is fixedly connected with a first spring, and the outer end of the first spring is fixedly connected with a first C-shaped plate. According to the cleaning device, the outer end of the fixed rod which is used for a long time can be cleaned, the cleaning device cannot interfere with a mold in the using process, and the precision of the mold in the using process is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of USB connector manufacturing technology, specifically a USB connector injection molding precision control device. Background Technology

[0002] An injection molding machine is a tool used to produce plastic products; it also gives plastic products their complete structure and precise dimensions. Injection molding is a processing method used for the mass production of certain complex-shaped parts. Specifically, it refers to injecting molten plastic into a mold cavity under high pressure using an injection molding machine, and then cooling and solidifying it to obtain the molded product.

[0003] A USB connector is the physical interface through which USB devices connect to a computer or other USB devices, allowing for data transfer and power supply. The design of the USB connector makes connecting devices simple, quick, and offers excellent compatibility and ease of use.

[0004] For example, utility model patent CN220314034U discloses a USB connector injection mold, including a frame, a slide column and a lower mold assembly mounted on the frame, a top plate mounted on the slide column, a drive assembly mounted on the top plate, a connecting assembly mounted on the slide column, and an upper mold assembly mounted on the connecting assembly. The upper mold assembly and the lower mold assembly are matched vertically. The connecting assembly is slidably mounted on the slide column. There are multiple slide columns spaced apart. The connecting assembly is connected to the output end of the drive assembly. The drive assembly can drive the connecting assembly to move up and down, thereby driving the upper mold assembly to move up and down, thus realizing mold closing and mold opening. The lower mold assembly is used to cooperate with the upper mold assembly for injection molding. This utility model is simple and convenient to operate and has high safety. However, there is a problem that dust will adhere to the outer end of the slide column during long-term use, which will cause obstruction during the downward movement of the connecting plate, and finally reduce the molding accuracy of the device. To address this, we propose a USB connector injection molding accuracy control device. Utility Model Content

[0005] The purpose of this invention is to provide a USB connector injection molding precision control device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a USB connector injection molding precision control device, comprising a base, a lower template fixedly connected to the middle of the upper end of the base, an upper mold assembly provided at the upper end of the base, the upper mold assembly including a fixed rod, and external cleaning mechanisms for the rod ends provided on both sides of the base. Each external cleaning mechanism includes two symmetrically arranged L-shaped mounting brackets fixedly connected to the upper end of the base. An inclined C-shaped rod is fixedly connected to the inner end of each L-shaped mounting bracket. A guide groove is formed at the inner end of each inclined C-shaped rod, and a first guide post is slidably connected to the inner wall of each guide groove. A first fixing ring is fixedly connected to the outer side of the first end. A first spring is fixedly connected to the inner end of the first fixing ring. A first C-shaped plate is fixedly connected to the outer end of the first spring. A first guide post passes through the first C-shaped plate. A semi-circular cleaning arc plate is fixedly connected to the end of the first guide post away from the first fixing ring. A screw is threadedly connected to the surface of the first C-shaped plate and the screw passes through the first C-shaped plate. The lower end of the screw is fixedly connected to the output end of a stepper motor. A support plate is fixedly connected to the lower end of the stepper motor and a base is fixedly connected to the inner end of the support plate. A rod lubrication assembly is threadedly connected to the screw. The rod lubrication assembly is located on the upper part of the first C-shaped plate.

[0007] Preferably, the rod lubrication assembly includes a second C-shaped plate threaded to the outer end of the screw, through which the screw passes. Second guide posts are slidably connected to both sides of the second C-shaped plate, and the second guide posts penetrate the second C-shaped plate. A guide groove is slidably connected to the outer end of each second guide post. A second fixing ring is fixedly connected to the outer end of each second guide post. A second spring is fixedly connected to one end of each of the two second fixing rings, close to each other. The end of each second spring away from the second fixing ring is fixedly connected to the second C-shaped plate. Two symmetrically arranged slots are opened at the front end of the second C-shaped plate. An L-shaped support is fixedly connected to the inner end of each second guide post. A follower shaft is rotatably connected to the inner end of the L-shaped support via a bearing. A gear is fixedly connected to the follower shaft through the slot. A rack is meshed with the inner end of the gear, and a base is fixedly connected to the lower end of the rack. A lubrication roller is fixedly connected to the middle of the outer end of the follower shaft.

[0008] Preferably, a horizontal plate is fixedly connected to the upper end of the two fixed rods, an electric push rod is fixedly connected to the middle of the upper end of the horizontal plate and the output end of the electric push rod passes through the horizontal plate, a lower sliding plate is fixedly connected to the output end of the electric push rod, and an upper template is fixedly connected to the lower end of the lower sliding plate, with the upper template corresponding to the lower template.

[0009] Preferably, the upper and lower ends of the semi-circular cleaning arc plate near the fixing rod are chamfered, and the inner wall of the semi-circular cleaning arc plate abuts against the outer wall of the fixing rod.

[0010] Preferably, both the stepper motor and the electric push rod are electrically connected to an external power source.

[0011] Preferably, the outer end of the screw has a threaded groove, and the end of the screw away from the stepper motor is rotatably connected to a support plate via a bearing. The end of the support plate near the horizontal plate is fixedly connected to the horizontal plate.

[0012] Preferably, the outer diameter of the first guide post is matched with the inner diameter of the guide groove, and the outer diameter of the second guide post is matched with the inner diameter of the guide groove.

[0013] Preferably, the inclined C-shaped rod is arranged in a C-shape, and the inclined C-shaped rod is twisted at a certain angle about the base.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Equipped with a base, lower template, upper mold assembly, rod outer end cleaning mechanism, and support plate, this utility model enables the cleaning of the outer end of a fixed rod that has been used for a long time. This cleaning device will not interfere with the mold during use, thus ensuring the accuracy of the mold during use.

[0016] 2. A rod lubrication assembly is provided, which enables the stepper motor to be powered. The output of the stepper motor drives the screw to rotate, which in turn moves the second C-shaped plate downward, thereby moving the second guide post, the second fixing ring, the second C-shaped plate, the L-shaped support, the follower shaft, the lubrication roller, the second spring, and the gear downward. During the downward movement, the second guide post also moves inward, which in turn moves the L-shaped support inward. The follower shaft moves within the slot. When the gear meshes with the rack, as the second C-shaped plate continues to move downward, the gear rotates, which in turn drives the follower shaft to rotate, causing the lubricating oil on the outer end of the lubrication roller to adhere to the fixing rod, thus improving the smoothness of the outer end of the fixing rod. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the external cleaning mechanism for the rod body of this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged view of the structure of section A in the middle;

[0020] Figure 4 This is a schematic diagram of the rod lubrication assembly structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the upper mold assembly structure of this utility model.

[0022] In the diagram: 1. Base; 2. Lower template; 3. Upper template assembly; 31. Fixing rod; 32. Horizontal plate; 33. Electric push rod; 34. Lower moving plate; 35. Upper template; 4. Cleaning mechanism for the outer end of the rod; 41. Support plate; 42. Stepper motor; 43. Screw; 44. L-shaped mounting bracket; 45. Inclined C-shaped rod; 46. Guide groove; 47. First guide post; 48. First fixing ring; 49. First C-shaped plate; 410. Semi-circular cleaning arc plate; 411. First spring; 412. Rod lubrication assembly; 4121. Second guide post; 4122. Second fixing ring; 4123. Second C-shaped plate; 4124. L-shaped support bracket; 4125. Follower shaft; 4126. Lubrication roller; 4127. Second spring; 4128. Gear; 4129. Rack; 5. Support plate. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a USB connector injection molding precision control device, including a base 1, a lower template 2 fixedly connected to the middle of the upper end of the base 1, an upper mold assembly 3 provided at the upper end of the base 1, the upper mold assembly 3 including a fixing rod 31, and a rod external end cleaning mechanism 4 provided on both sides of the base 1. The rod external end cleaning mechanism 4 includes two symmetrically arranged L-shaped mounting brackets 44 fixedly connected to the upper end of the base 1. An inclined C-shaped rod 45 is fixedly connected to the inner end of each L-shaped mounting bracket 44. A guide groove 46 is opened at the inner end of the inclined C-shaped rod 45. A first guide post 47 is slidably connected to the inner wall of each guide groove 46. A first fixing ring 48 is fixedly connected to the outer side of the outer end of the first guide post 47. A first spring 411 is fixedly connected to the inner end of the first fixed ring 48, and a first C-shaped plate 49 is fixedly connected to the outer end of the first spring 411. A first guide post 47 passes through the first C-shaped plate 49, and a semi-circular cleaning arc plate 410 is fixedly connected to the end of the first guide post 47 away from the first fixed ring 48. A screw 43 is threadedly connected to the surface of the first C-shaped plate 49 and passes through the first C-shaped plate 49. The lower end of the screw 43 is fixedly connected to the output end of the stepper motor 42. A support plate 41 is fixedly connected to the lower end of the stepper motor 42 and a base 1 is fixedly connected to the inner end of the support plate 41. A rod lubrication assembly 412 is threadedly connected to the screw 43 and is located on the upper part of the first C-shaped plate 49.

[0025] In this embodiment, the rod lubrication assembly 412 includes a second C-shaped plate 4123 threadedly connected to the outer end of the screw 43, through which the screw 43 passes. Second guide posts 4121 are slidably connected to both sides of the second C-shaped plate 4123, and the second guide posts 4121 penetrate the second C-shaped plate 4123. A guide groove 46 is slidably connected to the outer end of each second guide post 4121. A second fixing ring 4122 is fixedly connected to the outer end of each second guide post 4121. Two second fixing rings 4122 are close to each other, and a second spring 4127 is fixedly connected to one end of each second fixing ring 4122. The second spring 4127 is away from the first... Two fixed rings 4122 are fixedly connected to one end of a second C-shaped plate 4123. The front end of the second C-shaped plate 4123 has two symmetrically arranged slots. Each second guide post 4121 is fixedly connected to an L-shaped support bracket 4124 at its inner end. The inner end of the L-shaped support bracket 4124 is rotatably connected to a follower shaft 4125 through a bearing. The follower shaft 4125 passes through the slot and is fixedly connected to a gear 4128. The inner end of the gear 4128 is meshed with a rack 4129, and the lower end of the rack 4129 is fixedly connected to a base 1. A lubricating roller 4126 is fixedly connected to the middle of the outer end of the follower shaft 4125.

[0026] Specifically, the lubrication assembly 412 powers the stepper motor 42, causing the output of the stepper motor 42 to drive the screw 43 to rotate, which in turn moves the second C-shaped plate 4123 downward, thereby moving the second guide post 4121, the second fixing ring 4122, the second C-shaped plate 4123, the L-shaped support bracket 4124, the follower shaft 4125, the lubrication roller 4126, the second spring 4127, and the gear 4128 downward. During this downward movement, the second guide post 4121... Simultaneously, the second guide post 4121 moves inward, causing the L-shaped support bracket 4124 to move inward. At this time, the follower shaft 4125 moves within the slot. When the gear 4128 meshes with the rack 4129, as the second C-shaped plate 4123 continues to move downward, the gear 4128 rotates, thereby driving the follower shaft 4125 to rotate, which in turn causes the lubricating oil at the outer end of the lubricating roller 4126 to adhere to the fixed rod 31, improving the smoothness of the outer end of the fixed rod 31.

[0027] In this embodiment, a horizontal plate 32 is fixedly connected to the upper end of the two fixed rods 31. An electric push rod 33 is fixedly connected to the middle of the upper end of the horizontal plate 32, and the output end of the electric push rod 33 passes through the horizontal plate 32. A lower moving plate 34 is fixedly connected to the output end of the electric push rod 33. An upper template 35 is fixedly connected to the lower end of the lower moving plate 34. The upper template 35 is set to correspond to the lower template 2.

[0028] Specifically, the upper mold component 3 is provided to enable corresponding injection molding actions with the lower mold plate 2.

[0029] In this embodiment, the upper and lower ends of the semi-circular cleaning arc plate 410 near the fixing rod 31 are chamfered, and the inner wall of the semi-circular cleaning arc plate 410 abuts against the outer wall of the fixing rod 31.

[0030] Specifically, this ensures that the inner end of the semi-circular cleaning arc plate can smoothly clean, scrape, and remove dust from the outer end of the fixing rod 31.

[0031] In this embodiment, both the stepper motor 42 and the electric push rod 33 are electrically connected to an external power source.

[0032] Specifically, ensure that the stepper motor 42 and the electric push rod 33 can operate smoothly.

[0033] In this embodiment, the outer end of the screw 43 is provided with a threaded groove, and the end of the screw 43 away from the stepper motor 42 is rotatably connected to the support plate 5 through a bearing. The end of the support plate 5 near the horizontal plate 32 is fixedly connected to the horizontal plate 32.

[0034] Specifically, it ensures that the screw 43 maintains stability during rotation.

[0035] In this embodiment, the outer diameter of the first guide post 47 is matched with the inner diameter of the guide groove 46, and the outer diameter of the second guide post 4121 is matched with the inner diameter of the guide groove 46.

[0036] Specifically, it ensures that the first guide post 47 and the second guide post 4121 can slide smoothly within the guide groove 46, and that there is no interference between the first guide post 47 and the second guide post 4121 and the inner wall of the guide groove 46.

[0037] In this embodiment, the inclined C-shaped rod 45 is arranged in a C-shape and is twisted at a certain angle about the base 1.

[0038] Specifically, it ensures that the first guide post 47 and the second guide post 4121 can move simultaneously in the longitudinal and lateral directions within the guide groove 46.

[0039] Working Principle: When using the device, the USB connector can be injection molded via the lower mold plate 2 and upper mold assembly 3. When cleaning the outer end of the fixed rod 31, which has been used for a long time, is required, the stepper motor 42 can be powered by an external power source. The output of the stepper motor 42 drives the screw 43 to rotate, thereby driving the first C-shaped plate 49 and the second C-shaped plate 4123 to move downwards. The first guide post 47 and the second guide post 4121 slide within the guide groove 46. Since the semi-circular cleaning arc plate 410 is located below the lubrication roller 4126, it first scrapes away dust from the outer end of the fixed rod 31. The lubrication roller 4126 then applies oil to the outer end of the fixed rod 31. As the semi-circular cleaning arc plate 410 moves downwards, the first guide post 47 moves within the guide groove 46, and the first spring 411 is compressed. Once the inner end of the shaped plate 410 abuts against the outer end of the fixed rod 31, the semi-circular cleaning arc plate 410 remains in contact with the outer end of the fixed rod 31. During the downward movement of the lubricating roller 4126, the second guide post 4121 also moves inward during its downward movement. The second guide post 4121 drives the L-shaped support bracket 4124 to move inward, and the follower shaft 4125 moves within the slot. When the gear 4128 meshes with the rack 4129, as the second C-shaped plate 4123 continues to move downward, the gear 4128 rotates, thereby driving the follower shaft 4125 to rotate, which in turn drives the lubricating oil at the outer end of the lubricating roller 4126 to adhere to the fixed rod 31, improving the smoothness of the outer end of the fixed rod 31. This utility model enables the cleaning of the outer end of the fixed rod 31, which can be used for a long time. This cleaning device will not interfere with the mold during use, ensuring the accuracy of the mold during use.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for controlling the precision of injection molding of a USB connector, comprising a base (1), characterized in that: The lower end of the base (1) is fixedly connected with a lower mold plate (2), the upper end of the base (1) is provided with an upper mold assembly (3), the upper mold assembly (3) comprises a fixed rod (31), the two sides of the base (1) are provided with a rod body outer end cleaning mechanism (4), the rod body outer end cleaning mechanism (4) comprises two symmetrically arranged L-shaped mounting racks (44) fixedly connected to the upper end of the base (1), the inner end of each L-shaped mounting rack (44) is fixedly connected with an inclined C-shaped rod (45), the inner end of the inclined C-shaped rod (45) is provided with a guide groove (46), the inner wall of each guide groove (46) is slidably connected with a first guide column (47), the outer end of the first guide column (47) is fixedly connected with a first fixed ring (48), the inner end of the first fixed ring (48) is fixedly connected with a first spring (411), the outer end of the first spring (411) is fixedly connected with a first C-shaped plate (49), the first guide column (47) penetrates through the first C-shaped plate (49), the end of the first guide column (47) away from the first fixed ring (48) is fixedly connected with a semicircular cleaning arc-shaped plate (410), the surface of the first C-shaped plate (49) is threadedly connected with a screw rod (43) which penetrates through the first C-shaped plate (49), the lower end of the screw rod (43) is fixedly connected with the output end of a stepping motor (42), the lower end of the stepping motor (42) is fixedly connected with a supporting plate (41) which is fixedly connected with the base (1) at the inner end, the screw rod (43) is threadedly connected with a rod body lubricating assembly (412) which is arranged on the upper part of the first C-shaped plate (49).

2. The USB tip injection molding precision control device of claim 1, wherein: The rod body lubricating assembly (412) comprises a second C-shaped plate (4123) which is threadedly connected to the outer end of the screw rod (43) and penetrates through the second C-shaped plate (4123), the two sides of the second C-shaped plate (4123) are slidably connected with second guide columns (4121) which penetrate through the second C-shaped plate (4123), the outer end of the second guide column (4121) is slidably connected with the guide groove (46), the outer end of the second guide column (4121) is fixedly connected with a second fixed ring (4122), the ends of the two second fixed rings (4122) away from each other are fixedly connected with second springs (4127), the end of the second spring (4127) away from the second fixed ring (4122) is fixedly connected with the second C-shaped plate (4123), the front end of the second C-shaped plate (4123) is provided with two symmetrically arranged strip holes, the inner end of each second guide column (4121) is fixedly connected with an L-shaped supporting frame (4124), the inner end of the L-shaped supporting frame (4124) is rotatably connected with a follow-up shaft (4125) through a bearing, the follow-up shaft (4125) penetrates through the strip hole and is fixedly connected with a gear (4128), the inner end of the gear (4128) is meshingly connected with a rack (4129) which is fixedly connected with the base (1) at the lower end, the outer end of the follow-up shaft (4125) is fixedly connected with a lubricating roller (4126).

3. The USB tip injection molding precision control device of claim 1, wherein: Two said fixed rod (31) upper end fixedly connected with the transverse plate (32), the transverse plate (32) upper end middle part is fixedly connected with electric push rod (33) and electric push rod (33) output end passes through the transverse plate (32), the electric push rod (33) output end is fixedly connected with the lower plate (34), the lower plate (34) lower end is fixedly connected with the upper die plate (35), the upper die plate (35) is corresponding to the lower die plate (2) setting.

4. The USB tip injection molding precision control device of claim 1, wherein: The semicircular cleaning arc-shaped plate (410) is chamfered at the upper and lower ends of one side close to the fixed rod (31), and the inner wall of the semicircular cleaning arc-shaped plate (410) abuts against the outer wall of the fixed rod (31).

5. The USB tip injection molding precision control device of claim 3, wherein: The stepping motor (42) and the electric push rod (33) are electrically connected to an external power source.

6. The USB tip injection molding precision control device of claim 1, wherein: The screw rod (43) is provided with a threaded groove at the outer end, and the screw rod (43) is rotatably connected to a support plate (5) at the end away from the stepping motor (42) through a bearing.

7. The USB tip injection molding precision control device of claim 2, wherein: The outer diameter of the first guide column (47) matches the inner diameter of the guide groove (46), and the outer diameter of the second guide column (4121) matches the inner diameter of the guide groove (46).

8. The USB tip injection molding precision control device of claim 1, wherein: The inclined C-shaped rod (45) is arranged in a C-shaped shape, and the inclined C-shaped rod (45) is twisted at a certain angle about the base (1).

Images