Structure for embedding copper nail into mold insert pin

Abstract

The utility model discloses a structure for embedding a copper nail into a mold insert pin, which is used for fixing the copper nail, and one end of the copper nail is provided with a concave hole. The device is characterized by comprising a base; the insert pin is fixed to the base in the axial direction, the insert pin has a first size in the direction perpendicular to the axial direction, and the first size is matched with the inner diameter of the hole; and the elastic mechanism is fixed in the insert pin in a penetrating mode, the elastic mechanism has a second size in the direction perpendicular to the axial direction in the relaxed state, and the second size is larger than the first size. According to the structure of the utility model, the copper nail can be clamped and stabilized through the elastic mechanism, so that the copper nail is prevented from loosening or displacing in the injection molding and mold closing processes.

Description

Technical Field

[0001] The utility model relates to a copper nail embedded in a mold pin-setting structure, belonging to the technical field of processing molds. Background Art

[0002] The description in this section merely provides background information related to the disclosure of the present utility model and does not constitute prior art.

[0003] Copper nail plastic coating is a kind of insert injection molding process, which means that the copper nail is fixed in the injection mold in advance, and then the plastic is injected to form the copper nail, so that the copper nail is wrapped in plastic to form an integrated product, which can improve the corrosion resistance and waterproofness of the copper nail and extend the service life. At the same time, it can also enhance the bonding force between the copper nail and the plastic matrix to prevent it from falling off or loosening. In other words, the copper nail plastic coating process can improve the strength, conductivity, heat resistance and other properties of the product, and is widely used in electronics, automobiles, medical and other fields.

[0004] In the existing process of plastic coating for copper nails, the fixing effect of the copper nails is poor. The copper nails are easy to loosen or move during injection molding and mold closing. In some cases, if the copper nails fall off, it will also cause damage to the mold during mold pressing, resulting in great cost losses.

[0005] There is no copper nail embedded in the mold pin structure that can solve the above problems. Utility Model Content

[0006] The utility model aims to provide a copper nail embedded in a mold pin structure, which can clamp and stabilize the copper nail through an elastic mechanism to prevent the copper nail from loosening or displacement during injection molding and mold closing processes.

[0007] In order to achieve the above-mentioned purpose, the utility model discloses the following copper nail embedded mold pin structure, which is used to fix the copper nail, wherein one end of the copper nail has a concave hole; and includes:

[0008] Base;

[0009] An insert pin, the insert pin is fixed on the base along the axial direction, the insert pin has a first size along a direction perpendicular to the axial direction, and the first size is consistent with the inner diameter of the hole;

[0010] An elastic mechanism is inserted and fixed in the insert pin, and the elastic mechanism has a second size in a direction perpendicular to the axial direction in a relaxed state, and the second size is larger than the first size.

[0011] Furthermore, the base includes a plurality of equidistantly arranged combinations of the inlay pins and the elastic mechanism.

[0012] Furthermore, the top of the insert pin also includes an arc-shaped portion whose diameter gradually decreases along the axial direction away from the insert pin.

[0013] Further, the elastic mechanism has a third dimension in a direction perpendicular to the axial direction in a compressed state, and the third dimension is greater than or equal to the first dimension.

[0014] Furthermore, the elastic mechanism is mirror-imaged along the axial direction so that two sides of the setting pin protrude outward from the setting pin in a relaxed state.

[0015] Furthermore, a cushion portion is provided between the insert pin and the base, the cushion portion extends along the axial direction, and a diameter of the cushion portion is greater than a diameter of the insert pin.

[0016] Furthermore, a middle position of the insert pin has an annular step portion, and the step portion has a third dimension along a direction perpendicular to the axial direction, and the third dimension is greater than the inner diameter of the hole.

[0017] By means of the above technical solution, the beneficial effects of the utility model are as follows:

[0018] 1. The copper nail embedding mold pin structure of the utility model can achieve the auxiliary guiding function of the insertion direction of the copper nail during the embedding process of the copper nail by arranging an elastic mechanism on the pin, and the elastic mechanism can be used to extend and retract to achieve the auxiliary guiding function of the insertion direction of the copper nail during the embedding process of the copper nail. In addition, during the injection molding and mold closing process after the copper nail is embedded, the elastic resistance of the elastic mechanism can keep the copper nail in a reasonable position, and the assembly gap is smaller and the precision is higher.

[0019] 2. The top of the copper nail embedded in the mold pin structure of the utility model includes an arc-shaped portion. The smooth avoidance characteristics of the arc-shaped portion can avoid structural wear caused by excessive copper nail insertion force or deviation in the insertion direction, which affects the service life of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 This is a schematic diagram of an embedded state of a copper nail embedded mold pin structure provided in an embodiment of this specification;

[0022] Figure 2 This is a schematic diagram of a base of a copper nail embedded in a mold pin structure provided in an embodiment of this specification;

[0023] In the figure: 100, copper nail; 101, hole; 1, base; 2, inlay pin; 21, arc-shaped portion; 22, stepped portion; 3, elastic mechanism; 4, pad portion. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this specification.

[0025] In the description of the present utility model, it should be noted that the terms "upper", "middle", "lower", "inner", "outer", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following describes the implementation method of the present utility model based on its overall structure.

[0026] See also Figure 1-2 , is a copper nail embedded mold pin structure of this embodiment, used to fix the copper nail 100, wherein one end of the copper nail 100 has a concave hole 101; it includes:

[0027] Base 1;

[0028] The insert pin 2 is fixed on the base 1 along the axial direction, and the insert pin 2 has a first size along a direction perpendicular to the axial direction, and the first size is consistent with the inner diameter of the hole;

[0029] The elastic mechanism 3 is passed through and fixed in the insert pin 2. The elastic mechanism 3 has a second dimension in a direction perpendicular to the axial direction in a relaxed state, and the second dimension is greater than the first dimension.

[0030] Through the above structure, when in use, the staff only needs to press the copper nail 100 down along the axial direction of the insert pin 2 so that at least part of the insert pin 2 is inserted into the hole 101, and then continue to press down until the preset part of the insert pin 2 is completely covered by the hole 101 of the copper nail 100.

[0031] During the process of inserting the insert pin 2 into the hole 101, the insert pin 2 may first touch a portion of the inner wall of the hole 101, which means that at least a portion of the insert pin 2 has been inserted into the hole 101. Then, when the copper nail 100 is further pressed down, the hole 101 of the copper nail 100 will touch the elastic mechanism 3 protruding on one side of the outer wall of the insert pin 2.

[0032] After contacting the inner wall of the hole 101, the elastic mechanism 3 undergoes elastic deformation, thereby playing an effective guiding role in the downward pressing of the copper nail 100: if the copper nail 100 is partially skewed when pressed down, the inner wall of the hole 101 in the copper nail 100 will be subjected to a greater resistance force from the elastic mechanism 3 on the side of the skew, and the side away from the skew direction of the copper nail 100 will be subjected to a smaller resistance force from the elastic mechanism 3, and in some cases will not even contact the elastic mechanism 3, so that the copper nail 100 is corrected in the pressing direction during the subsequent pressing process by the elastic mechanism 3, and the position of the copper nail 100 after it finally falls is the position defined by the elastic mechanism 3 that is coaxial with the axial direction of the inlay pin 2, so that the copper nail 100 obtains a better positioning effect, avoiding the landing point deviation caused by the original skew of the insertion direction of the copper nail 100, and the upper mold of the mold can accurately realize the pressing operation of the copper nail 100 whose landing point meets the preset

[0033] Specifically, after the copper nail 100 falls completely, the injection molding and mold closing of the copper nail can be started. In the above processing, when the copper nail 100 is offset by external force during the injection molding process, the sleeved copper nail 100 is still elastically resisted by the elastic mechanism 3 on the outside of the inlay pin 2, so that the copper nail 100 is in a tense state, and any external force on the copper nail 100 will be temporarily resolved by the elastic mechanism 3 into the elastic deformation of the spring and then offset, so that this embodiment can further enhance the strength of the structure to fix the copper nail 100 during the processing, thereby reducing the defective rate of the product.

[0034] Furthermore, the base 1 is configured as a regular rectangular plate, and a specified number of pin sleeves are preset on the base 1, and the pin sleeves have a hole-shaped inner diameter, so that the other end of the pin 2 can be stably sleeved and fixed on the base 1. The copper nail 100 is configured as a sleeve-shaped structure with a diameter of 8 mm, and the copper nail 100 includes a hole 101 with a diameter of about 4.2 mm coaxial with the main body of the copper nail 100, and the hole 101 is configured as a blind hole with a smooth inner wall. The main body in the pin 2 is also configured as a regular cylinder with a diameter of about 4.2 mm, and the overall outer wall of the pin 2 coincides with the inner wall of the hole 101, and the copper nail 100 can be smoothly sleeved on the pin 2 along the axial direction.

[0035] Specifically, the elastic mechanism 3 is configured as a bent strip structure inserted into the inlay pin 2, the specific bend is an arc shape, and the arc has two side wings protruding out of the outer wall of the inlay pin 2, and the specific material of the elastic mechanism 3 is a steel wire strip composed of carbon steel, silicon manganese steel or chrome vanadium steel. During the process of pressing down the copper nail 100, the inner wall of the hole 101 of the copper nail 100 may conflict with the position where the elastic mechanism 3 extends out of the inlay pin 2. After the conflict, the elastic mechanism 3 deforms elastically and pushes the copper nail 100 to slightly displace in the direction opposite to the elastic deformation, so that the copper nail 100 is returned to the preset position to achieve the positioning effect of the copper nail 100 in this embodiment. Specifically, the elastic mechanism 3 may extend out of the outer wall of the insert pin 2 at multiple locations. In this embodiment, the elastic mechanism 3 is configured to extend at both ends of a steel wire. In another embodiment, a higher requirement is placed on the fixing strength of the copper nail 100, and a plurality of steel wires are used, so that the elastic steel wires extending out of the outer wall of the insert pin 2 include 4 or 6. It is worth noting that the protruding dimensions of the plurality of elastic mechanism 3 portions extending out of the outer wall of the insert pin 2 are the same, so that the copper nail 100 can obtain a positioning effect coaxial with the axial direction.

[0036] Furthermore, if Figure 2 As shown, the base 1 includes a plurality of equally spaced insert pins 2 and an elastic mechanism 3, wherein the base 1 in this embodiment includes two horizontal rows of insert pins 2, each row includes a total of six independent insert pins 2, that is, in a single mold press, twelve independent copper nails 100 can be processed at the same time. Of course, the specific amount can be flexibly adjusted according to the required processing amount, and it does not exceed the scope of the embodiment of the utility model.

[0037] Furthermore, if Figure 1 As shown, the top of the insert pin 2 also includes an arc portion 21 whose diameter gradually decreases in the axial direction away from the insert pin 2. The arc portion 21 provides a certain buffering effect on the downward pressure of the insert pin 2, which can effectively avoid the problem of structural wear of the copper nail 100 or the insert pin 2 due to excessive insertion force of the copper nail 100 or deviation in the insertion direction, thereby affecting the service life of the mold.

[0038] Furthermore, the elastic mechanism 3 has a third dimension in a direction perpendicular to the axial direction in a compressed state, and the third dimension is greater than or equal to the first dimension. Specifically, in this embodiment, the steel wire of the fully compressed elastic mechanism 3 can be completely attached to the inner wall surface of the hole 101 after shrinking, that is, the third dimension is slightly larger than the first dimension, but because the number and size of the steel wires of the elastic mechanism 3 extending out of the insert pin 2 are equal in multiple places, the copper nail 100 can still obtain a good coaxial positioning effect, and because the elastic mechanism 3 is compressed to a large enough extent, it can meet the requirements of correcting the position of the copper nail 100 at all times during the injection molding process.

[0039] Furthermore, a cushion portion 4 is further provided between the insert pin 2 and the base, the cushion portion 4 extends in the axial direction, and the diameter of the cushion portion 4 is larger than the diameter of the insert pin 2. The arrangement of the cushion portion 4 can effectively increase the strength and stability of the insert pin 2, and prevent the insert pin 2 from being deformed or broken when the mold is working. In this embodiment, the insert pin 2 and the cushion portion 4 are an integrated structure with a stronger structural strength. In another embodiment, the cushion portion 4 can be a metal gasket made of cemented carbide or stainless steel. The cushion portion 4 can effectively disperse the pressure on the insert pin 2, reduce the friction between the insert pin 2 and the base 1, and improve the wear resistance and corrosion resistance of the insert pin 2.

[0040] Furthermore, the middle position of the insert pin 2 has an annular step portion 22, and the step portion 22 has a third dimension in a direction perpendicular to the axial direction, and the third dimension is greater than the inner diameter of the hole. The step portion 22 can limit the position of the copper nail 100 after the copper nail 100 is completely pressed into the mold, and the copper nail 100 will not be pressed down under excessive force, causing the copper nail 100 to be penetrated and deformed.

[0041] The present invention uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A copper nail embedded in a mold pin structure, used to fix copper nails, wherein: One end of the copper nail has a concave hole; it is characterized by comprising: Base; An insert pin, the insert pin is fixed on the base along the axial direction, the insert pin has a first size along a direction perpendicular to the axial direction, and the first size is consistent with the inner diameter of the hole; An elastic mechanism is inserted and fixed in the insert pin, and the elastic mechanism has a second size in a direction perpendicular to the axial direction in a relaxed state, and the second size is larger than the first size.

2. The copper nail embedding mold pin-setting structure according to claim 1, characterized in that: The base includes a plurality of equidistantly arranged inlay pins and the elastic mechanism combination.

3. The copper nail embedding mold pin-setting structure according to claim 1, characterized in that: The top of the insert pin also includes an arc-shaped portion whose diameter gradually decreases in a direction away from the insert pin along the axial direction.

4. The copper nail embedding mold pin-setting structure according to claim 1, characterized in that: The elastic mechanism has a third dimension in a direction perpendicular to the axial direction in a compressed state, and the third dimension is greater than or equal to the first dimension.

5. The copper nail embedding mold pin-setting structure according to claim 1, characterized in that: The elastic mechanism is arranged in a mirror image along the axial direction so that two sides of the setting pin protrude outward from the setting pin in a relaxed state.

6. The copper nail embedding mold pin-setting structure according to claim 1, characterized in that: A cushion portion is further provided between the insert pin and the base. The cushion portion extends along the axial direction, and a diameter of the cushion portion is greater than a diameter of the insert pin.

7. The copper nail embedding mold pin-setting structure according to claim 1, characterized in that: The middle position of the insert pin has an annular step portion, and the step portion has a third dimension along a direction perpendicular to the axial direction, and the third dimension is greater than the inner diameter of the hole.

Images