Straight nail and inclined nail in-mold nail burying integrated device

By designing the integrated nail buried nail device in the straight nail mold, the cylinder and negative pressure suction cups can be used to automatically grasp and buried nails of straight nails and oblique nails, the problems of low production efficiency and high defect rate in the existing technology are solved, and efficient production and cost reduction are achieved.

CN223223752UActive Publication Date: 2025-08-15HEFEI JINGWEI ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202422522557.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-18
Publication Date
2025-08-15
Estimated Expiration
2034-10-18

AI Technical Summary

Technical Problem

In the prior art, the in-mold nail buried device cannot efficiently realize continuous nail buried of straight nails and oblique nails, resulting in low production efficiency, high defect rate and high manufacturing cost.

Method used

An integrated device for burying nails inside the straight nail oblique nail mold is designed, including a vehicle, a limiting block, a nut positioning needle, a guide column, a guide plate, a copper nail grabbing mechanism and a material pickup mechanism, and the cylinder and a negative pressure suction cup are used to realize the automatic grasping and burying nails of straight nails and oblique nails.

Benefits of technology

Automatic buried nails with continuous implementation of straight and oblique nails in the mold are achieved, which improves production efficiency and reduces defective rates and manufacturing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of molds, in particular to a straight nail and inclined nail in-mold nail burying integrated device which comprises a carrier, the carrier comprises a bottom plate, a limiting block, a nut positioning needle and a guide column, the limiting block, the nut positioning needle and the guide column are arranged on the bottom plate, a guide plate is movably connected to the guide column, and a copper nail grabbing mechanism and a material taking mechanism are arranged on the guide plate. The copper nail grabbing mechanism comprises a straight nail grabbing mechanism and an inclined nail grabbing mechanism, and the material taking mechanism is formed by connecting a first air cylinder with a negative pressure suction cup. According to the in-mold nail burying integrated device for the straight nails and the inclined nails, the straight nail grabbing mechanism and the inclined nail grabbing mechanism are arranged in the device at the same time, the inclined nail grabbing mechanism is connected with the two air cylinders through the connecting rods to achieve offset nail burying, straight nail burying and inclined nail burying can be continuously carried out in the mold, the production efficiency can be effectively improved, and the production cost is reduced. The product yield is improved; and the manufacturing cost is reduced.
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Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a device for embedding straight and oblique nails in a mold. Background Art

[0002] Plastic products are primarily formed through injection molding. Existing plastic products are no longer simple housings. For example, 3C (electronics) and automotive components are now assembled from multiple plastic parts or other components precisely assembled together. These components are often connected using snap-fits or self-tapping screws. These two methods of connection are prone to cracking and lack high assembly precision. Another method involves hot-melt-embedded copper nails after the plastic is injection-molded, relying on the nails for threaded connection. While this method is secure, hot-melt-embedded nails after injection molding are complex and time-consuming, impacting processing efficiency.

[0003] In order to ensure the reliability and accuracy of the connection and streamline the processing technology, there is currently a method of pre-embedding copper nails directly in the cavity of the injection mold. The copper nails are pre-embedded in the cavity of the injection mold before injection molding, and then combined with the copper nails during the injection molding of the plastic product. This method of embedding nails is called in-mold embedding nails. The in-mold embedding nail technology has the advantages of high efficiency, accuracy and stability. In the existing technology, such as the notebook of 3C products, the notebook shell is provided with straight nails at a perpendicular angle to the plane of the notebook shell, and there are also oblique nails at an inclined angle to the plane of the notebook shell. In the existing technology, due to the lack of a suitable embedding device, in actual production, two sets of embedding nail devices are required to go through two positioning and two embedding processes. This production method is very inefficient, has a high defect rate, and the manufacturing cost will be very high. Summary of the Invention

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to develop an integrated device for embedding straight and oblique nails in a mold continuously.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A device for embedding straight and oblique nails in a mold includes a carrier, which includes a base plate and a limit block, a nut positioning needle and a guide column arranged on the base plate. A guide plate is movably connected to the guide column, and a copper nail grabbing mechanism and a material picking mechanism are provided on the guide plate. The copper nail grabbing mechanism includes a straight nail grabbing mechanism and an oblique nail grabbing mechanism. The material picking mechanism is composed of a first cylinder connected to a negative pressure suction cup.

[0007] Preferably, the straight nail grabbing mechanism includes a second cylinder, a first thimble and a first sleeve, the second cylinder is connected to one end of the first thimble, the other end of the first thimble is placed inside the first sleeve, a first through hole is provided at the bottom of the first sleeve, a first ball is provided in the first through hole, and a first spring is provided on the first ball.

[0008] Preferably, the oblique nail grabbing mechanism includes a bracket mounted on the guide plate, the upper end of the third cylinder is movably mounted on the bracket, the lower end of the third cylinder is connected to one end of the second ejector pin, the other end of the second ejector pin is placed inside the second sleeve, a second through hole is provided at the bottom of the second sleeve, a second ball is provided in the second through hole, a second spring is provided on the second ball, one end of the fourth cylinder is fixed on the guide plate, and the other end of the fourth cylinder is connected to the lower end of the third cylinder by a connecting rod.

[0009] Preferably, the number of the straight nail grabbing mechanisms is one or more.

[0010] Preferably, the number of the oblique nail grabbing mechanisms is one or more.

[0011] Compared with the existing technology, the beneficial effects of the utility model are as follows:

[0012] The utility model relates to an integrated device for embedding straight nails and oblique nails in a mold. A straight nail grabbing mechanism and an oblique nail grabbing mechanism are provided inside the device. The oblique nail grabbing mechanism connects two cylinders through a connecting rod to realize oblique nail embedding. The device can continuously embed straight nails and oblique nails in the mold, which can effectively improve production efficiency, increase product yield and reduce manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a partial enlarged structural diagram of point A of the present utility model;

[0015] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 4 This is a side view of the structure of the utility model;

[0017] Figure 5 It is a schematic diagram of the top view structure of the utility model. DETAILED DESCRIPTION

[0018] See attached Figure 1-5As shown, a straight nail and oblique nail embedded in the mold integrated device includes a carrier 1, the carrier 1 includes a base plate 1-1 and a limit block 1-2, a nut positioning needle 1-3 and a guide column 1-4 arranged on the base plate 1-1, and a guide plate 2 is movably connected to the guide column 1-4. A copper nail grasping mechanism and a material picking mechanism 3 are provided on the guide plate 2. The copper nail grasping mechanism includes a straight nail grasping mechanism 4 and an oblique nail grasping mechanism 5. The material picking mechanism 3 is composed of a first cylinder 3-1 connected to a negative pressure suction cup 3-2.

[0019] Preferably, the straight nail grabbing mechanism 4 includes a second cylinder 4-1, a first thimble 4-2 and a first sleeve 4-3, the second cylinder 4-1 is connected to one end of the first thimble 4-2, the other end of the first thimble 4-2 is placed inside the first sleeve 4-3, a first through hole 4-4 is provided at the bottom of the first sleeve 4-3, a first ball is provided in the first through hole 4-4, and a first spring is provided on the first ball.

[0020] Preferably, the oblique nail grabbing mechanism 5 includes a bracket 5-1 mounted on the guide plate 2, the upper end of the third cylinder 5-2 is movably mounted on the bracket 5-1, the lower end of the third cylinder 5-2 is connected to one end of the second ejector pin 5-3, the other end of the second ejector pin 5-3 is placed inside the second sleeve 5-4, a second through hole 5-5 is provided at the bottom of the second sleeve 5-4, a second ball is provided in the second through hole 5-5, a second spring is provided on the second ball, one end of the fourth cylinder 5-6 is fixed on the guide plate 2, and the other end of the fourth cylinder 5-6 is connected to the lower end of the third cylinder 5-2 through a connecting rod 5-7.

[0021] The present invention provides an integrated device for embedding straight and oblique nails in a mold. A straight nail grabbing mechanism 4 and an oblique nail grabbing mechanism 5 are provided inside the device. The operating principle of the device is as follows: the device is divided into two parts: a limit block 1-2 designed on a carrier 1 is used to position the product to be embedded with nails; a nut positioning pin 1-3 is designed to position and install pre-embedded nuts; and a guide column 1-4 is designed to position a guide plate 2. Typically, the guide plate 2 is mounted on a robot. Once the product to be embedded with nails and the pre-embedded nuts on the carrier 1 are positioned, the robot operates the guide plate 2 to press fit onto the carrier 1 and position it via the guide columns 1-4. The straight nail grabbing mechanism 4 and the oblique nail grabbing mechanism 5 provided on the guide plate 2 will reach their respective corresponding nut positioning pins 1-3.

[0022] The working principle of the straight nail grabbing mechanism 4 is that in the initial state, the two first balls arranged in the first through hole 4-4 form an outward elastic force through the first spring sheet provided between them. Since a part of the first balls is exposed from the first through hole 4-4, when the bottom of the first sleeve 4-3 is inserted into the nut pre-positioned on the nut positioning pin 1-3, due to the tension of the two first balls, the nut is fixed to the bottom of the first sleeve 4-3, thereby completing the nut installation operation of the straight nail grabbing mechanism 4.

[0023] Similarly, the oblique nail grabbing mechanism 5 has the same working principle as the straight nail grabbing mechanism 4 when the fourth cylinder 5-6 is not started, and the nut is installed at the bottom of the second sleeve 5-4 by the elastic force formed by the two second balls in the second through hole 5-5.

[0024] When the manipulator operates the guide plate 2 to move to the injection mold of the injection molding equipment, the product to be embedded and the pre-embedded nut arrive in the injection mold of the injection molding equipment together with the guide plate 2. At this time, the manipulator fixes the product in the injection mold. At the same time, the pneumatic components in the straight nail grabbing mechanism 4 and the oblique nail grabbing mechanism 5 are started, and the nuts are driven out to complete the embedding operation. The specific principle is: the second cylinder 4-1 of the straight nail grabbing mechanism 4 is started and drives the first ejector pin 4-2 connected to it to extend. The first ejector pin 4-2 will expose the first sleeve 4-3 and eject the nut installed at the end of the first sleeve 4-3, completing the nut driving and embedding operation.

[0025] Similarly, the fourth cylinder 5-6 of the oblique nail grabbing mechanism 5 is started and pushes the third cylinder 5-2 to tilt through the connecting rod 5-7. When the third cylinder 5-2 tilts, the second sleeve 5-4 connected thereto will also tilt, and the nut installed at the end of the second sleeve 5-4 will also tilt. At this time, the third cylinder 5-2 is started and drives the second ejector pin 5-3 connected thereto to eject the second sleeve 5-4 and knock out the nut fixed at the end and implant it into the mold of the injection molding equipment, completing the oblique nail embedding operation.

[0026] When the product to be embedded with nails and the pre-embedded nuts are positioned, the robot moves the device out, the injection mold is closed to complete the injection, and when the injection mold is opened, the robot drives the device through the material-taking mechanism 3 set in the device, and the first cylinder 3-1 is started to drive the negative pressure suction cup 3-2 connected thereto to take the product out of the mold, thus completing the nail embedding operation.

[0027] The device can continuously implement straight nailing and oblique nailing in the mold, which can effectively improve production efficiency, increase product yield and reduce manufacturing costs.

[0028] The above description is merely a preferred embodiment of the present invention and does not constitute any other limitation thereto. Any person skilled in the art may utilize the above-disclosed technical content to modify or remodel the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the present invention and are based on the technical essence of the present invention shall remain within the scope of protection of the present invention.

Claims

1. A device for embedding straight and oblique nails in a mold, comprising a carrier, the carrier comprising a base plate and a limit block, a nut positioning pin, and a guide column provided on the base plate, characterized in that: The guide plate is movably connected to the guide column, and a copper nail grabbing mechanism and a material picking mechanism are provided on the guide plate. The copper nail grabbing mechanism includes a straight nail grabbing mechanism and an oblique nail grabbing mechanism. The material picking mechanism is composed of a first cylinder connected to a negative pressure suction cup.

2. The device for embedding straight and oblique nails in a mold according to claim 1, characterized in that: The straight nail grabbing mechanism includes a second cylinder, a first thimble and a first sleeve. The second cylinder is connected to one end of the first thimble, and the other end of the first thimble is placed inside the first sleeve. A first through hole is provided at the bottom of the first sleeve, and a first ball is provided in the first through hole. A first spring is provided on the first ball.

3. The device for embedding straight and oblique nails in a mold according to claim 1, characterized in that: The oblique nail grabbing mechanism includes a bracket mounted on the guide plate, the upper end of the third cylinder is movably mounted on the bracket, the lower end of the third cylinder is connected to one end of a second ejector pin, the other end of the second ejector pin is placed inside a second sleeve, a second through hole is provided at the bottom of the second sleeve, a second ball is provided in the second through hole, a second elastic sheet is provided on the second ball, one end of the fourth cylinder is fixed to the guide plate, and the other end of the fourth cylinder is connected to the lower end of the third cylinder via a connecting rod.

4. The straight nail and oblique nail in-mold embedded nail device according to claim 1 or 2, characterized in that: The number of the straight nail grabbing mechanism is one or more.

5. The straight nail and oblique nail in-mold embedded nail device according to claim 1 or 3, characterized in that: The number of the oblique nail grabbing mechanisms is one or more.