Embedded device for nut in injection molding part

Abstract

The utility model relates to the technical field of injection molding, and provides an embedding device for nuts in an injection molding part, which comprises a first injection molding part, a plurality of nuts and a pushing mechanism, a plurality of embedding holes are formed in the first injection molding part and are used for accommodating nuts; the pushing mechanism comprises a pushing assembly, a plurality of guide rods and a plurality of pushing pipes, the guide rods are arranged on the pushing assembly, each guide rod is sleeved with the corresponding pushing pipe and a nut, and the pushing pipes are connected with the pushing mechanism; under the condition that the pushing assembly moves in the direction close to the first injection molding part, the nut can be pushed into the embedding hole; and under the condition that the pushing assembly moves in the direction away from the first injection molding part, the pushing pipe is separated from the nut, and the end face, making contact with the nut, of the pushing pipe is a concave-convex end face. According to the embedding device for the nut in the injection molding part, the contact area of the push pipe and the nut is reduced, and then the suction force is reduced, so that when the push pipe is separated from the nut, the nut can be prevented from being carried out, and the working efficiency and the yield are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an embedding device for nuts in injection molding parts. Background Art

[0002] Embedding metal nuts within injection molded parts is a common processing method. During the injection molding process, specialized nut embedding devices are often used to precisely place the nuts in the mold, improving production efficiency and reducing labor intensity. Nut embedding devices can be either manual or automatic. Automatic devices require automation equipment such as a robot and are more expensive, while manual devices are less expensive and can meet certain usage requirements.

[0003] The push-type nut embedding device is a common manual push-in structure. After the nut is embedded in place, due to the close contact between the push tube and the end face of the nut, under conditions of high air humidity and oil pollution, there is a certain adhesive suction between the end face of the nut and the end face of the push tube. When the push tube is withdrawn, the nut is easily brought out, resulting in defective products after injection molding, wasting materials, and reducing production efficiency. Utility Model Content

[0004] The utility model provides a device for embedding nuts in injection molded parts, which is used to solve the defect in the prior art that the nuts are easily carried out when the push tube is withdrawn.

[0005] The utility model provides a device for embedding nuts in injection molded parts, comprising: a first injection molded part, a plurality of nuts and a pushing mechanism; the first injection molded part is provided with a plurality of embedding holes, the number of the embedding holes matches the number of the nuts, and the embedding holes are used to accommodate the nuts; the pushing mechanism comprises: a pushing component, a plurality of guide rods and a plurality of push tubes, the plurality of guide rods are arranged on the pushing component, the outer surface of each guide rod is sleeved with the push tube and the nut, the push tube is connected to the pushing mechanism, and the guide rod can be inserted into the embedding hole; when the pushing component is in a direction close to the first injection molded part, the pushing component can drive the push tube to move in a direction close to the embedding hole to push the nut into the embedding hole; when the pushing component is in a direction away from the first injection molded part, the pushing component can drive the push tube to move in a direction away from the embedding hole to separate from the nut, wherein the end face of the push tube in contact with the nut is a concave and convex end face.

[0006] According to the embedding device for nuts in injection molded parts provided by the utility model, the concave-convex end face is at least one of a ring matrix end face, a grid matrix end face, a boss matrix end face or a horizontal stripe matrix end face.

[0007] According to the embedding device for a nut in an injection molded part provided by the utility model, the push tube is a magnetization-resistant push tube.

[0008] According to the embedding device for a nut in an injection molded part provided by the utility model, the push tube is a plastic push tube or a copper push tube.

[0009] According to the embedding device for nuts in injection molded parts provided by the utility model, a guide column is provided in the embedding hole, and when the guide rod is inserted into the embedding hole, the guide rod abuts against the guide column.

[0010] According to a device for embedding a nut in an injection molded part provided by the utility model, the pushing assembly includes: a pushing structure, a positioning plate and a push plate; the positioning plate is arranged parallel to the push plate, one end of the guide rod is passed through the positioning plate and the push plate, and the push tube is arranged on the surface of the push plate away from the positioning plate; the pushing structure is connected to the positioning plate and the push plate, and the pushing structure has a switchable pushed state and a reset state. When the pushing structure is in the pushed state, the pushing structure drives the push plate to move in a direction close to the first injection molded part, and the push plate drives the push tube to move in a direction close to the embedding hole; when the pushing structure is in the reset state, the pushing structure drives the push plate to move in a direction away from the first injection molded part, and the push plate drives the push tube to move in a direction away from the nut.

[0011] According to a device for embedding nuts in injection molded parts provided by the utility model, the pushing structure includes: a handle, a push rod and an elastic member; the first end of the push rod is connected to the handle, the second end of the push rod passes through the positioning plate and is connected to the push plate, the elastic member is sleeved outside the push rod, and the elastic member is located between the handle and the positioning plate; when the handle is pushed, the push rod can drive the push plate to move in a direction close to the first injection molded part, and when the external force of the handle disappears, the elastic member is reset, and the push rod can drive the push plate to move in a direction away from the first injection molded part.

[0012] According to the embedding device for nuts in injection molded parts provided by the utility model, the pushing structure further includes a bearing, the bearing is arranged on the surface of the positioning plate facing the push plate, and the push rod is passed through the bearing.

[0013] According to a device for embedding nuts in injection molded parts provided by the utility model, the pushing assembly also includes a positioning column, which passes through the positioning plate and the push plate and extends outside the push plate; the first injection molded part is provided with a positioning hole, and the positioning column can be inserted into the positioning hole.

[0014] According to the embedding device for nuts in injection molded parts provided by the utility model, the first injection molded part includes: a mold core and a mold frame, the mold core is embedded in the mold frame, and the mold core is provided with the embedding hole.

[0015] The device for embedding nuts in injection molded parts provided by the utility model reduces the contact area between the push tube and the nut by setting the end surface of the push tube in contact with the nut to be uneven, thereby reducing the suction force, so that the nut can be avoided from being carried out when the push tube is separated from the nut, thereby improving work efficiency and yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 The utility model is a structural diagram of a device for embedding nuts in injection molded parts.

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure of the pushing mechanism shown in FIG.

[0019] Figure 3 yes Figure 2 A partial enlarged view of point B is shown in FIG.

[0020] Figure 4 This is one of the schematic diagrams of the concave and convex end faces.

[0021] Figure 5 This is the second schematic diagram of the concave and convex end faces.

[0022] Figure 6 This is the third schematic diagram of the concave and convex end faces.

[0023] Figure 7 This is the fourth schematic diagram of the concave and convex end faces.

[0024] Figure 8 yes Figure 1 Schematic diagram of the structure of the first injection molded part shown in FIG.

[0025] Figure 9 yes Figure 8 A front view of the mold core is shown in FIG.

[0026] Figure 10 yes Figure 9 A cross-sectional view taken along AA is shown in FIG.

[0027] Figure 11It is a structural diagram of the nut not being pushed into the buried hole.

[0028] Figure 12 It is a structural diagram of a nut being pushed into a buried hole.

[0029] Figure 13 It is a structural diagram of the push tube leaving the nut.

[0030] Reference numerals:

[0031] 1. First injection molded part; 2. Pushing mechanism; 3. Nut; 4. Second injection molded part;

[0032] 11. Mold frame; 12. Mold core; 21. Pushing structure; 22. Positioning plate; 23. Pushing plate; 24. Guide rod; 25. Pushing tube;

[0033] 121. Embedment hole; 122. Positioning hole; 123. Guide column; 211. Handle; 212. Push rod; 213. Elastic member; 214. Bearing; 221. Positioning column. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] The following combination Figures 1-13 The utility model describes a device for embedding nuts in injection molded parts.

[0036] like Figure 1 As shown, in an embodiment of the present invention, the device for embedding nuts in an injection molded part comprises: a first injection molded part 1, a pushing mechanism 2, and a plurality of nuts 3. The first injection molded part 1 is provided with a plurality of embedding holes 121, the number of which matches the number of nuts 3, and each embedding hole 121 is used to accommodate a nut 3.

[0037] like Figure 2 and Figure 3As shown, the pushing mechanism 2 includes: a pushing assembly, multiple guide rods 24, and multiple push tubes 25. The multiple guide rods 24 are provided in the pushing assembly. A push tube 25 and a nut 3 are sleeved on the outside of each guide rod 24. The push tube 25 is connected to the pushing mechanism, and the guide rods 24 can be inserted into the embedded hole 121. When the pushing assembly is moving in a direction close to the first injection molded part 1, the pushing assembly can drive the push tube 25 to move in a direction close to the embedded hole 121 to push the nut 3 into the embedded hole 121. When the pushing assembly is moving in a direction away from the first injection molded part 1, the pushing assembly can drive the push tube 25 to move in a direction away from the embedded hole 121 to separate from the nut 3.

[0038] Specifically, when pushing the nut 3 into the embedded hole 121, each guide rod 24 is inserted into a respective embedded hole 121, and the pushing assembly is pushed in a direction approaching the first injection-molded part 1. The pushing assembly pushes the push tube 25 to move along the guide rod 24, and the push tube 25 pushes the nut 3 into the embedded hole 121. When the pushing assembly moves in a direction away from the first injection-molded part 1, the pushing assembly drives the push tube 25 to move in a direction away from the embedded hole 121, and the push tube 25 is separated from the nut 3. Specifically, the pushing assembly can be pulled in a direction away from the first injection-molded part 1 to separate the push tube 25 from the nut 3, or the pushing assembly is provided with an automatic reset structure, which can automatically reset in the absence of external force to separate the push tube 25 from the nut 3.

[0039] In this embodiment, the end surface of the push tube 25 in contact with the nut 3 is a concave-convex end surface. Since the end surface of the push tube 25 is uneven, the contact area with the end surface of the nut 3 can be reduced, reducing the suction force, thereby preventing the nut 3 from being carried out when the push tube 25 is separated from the nut 3.

[0040] The embedding device for nuts in injection molded parts provided by the embodiment of the utility model reduces the contact area between the push tube and the nut by setting the end surface where the push tube contacts the nut to be uneven, thereby reducing the suction force. Therefore, when the push tube is separated from the nut, the nut can be avoided from being carried out, thereby improving work efficiency and yield rate.

[0041] In the embodiment of the present utility model, as Figure 4 As shown, the concave-convex end surface can be a horizontal stripe matrix end surface; Figure 5 As shown, the concave-convex end surface can be a ring matrix end surface; Figure 6 As shown, the concave-convex end surface can be a grid matrix end surface; Figure 7 As shown, the concave-convex end surface can also be a boss rectangular end surface.

[0042] It is understandable that the concave and convex end surface may also be at least two of the above-mentioned shapes, or other shapes, as long as the end surface where the push tube 25 contacts the nut 3 is an uneven end surface.

[0043] Furthermore, when the push tube 25 and the nut 3 are both made of iron, after long-term use, magnetic attraction will occur between the push tube 25 and the nut 3. When the push tube 25 is away from the nut 3, the nut 3 will also be carried out due to the magnetic attraction. Based on this, in an embodiment of the present invention, the push tube 25 can be a magnetization-resistant push tube. Specifically, the push tube 25 can be a plastic tube, such as injection molding of wear-resistant and dimensional-stable materials such as PEEK and PEI; or the material of the push tube 25 can be set to a metal material that is not easy to generate magnetism, such as copper.

[0044] like Figure 8 、 Figure 9 and Figure 10 As shown, in an embodiment of the present invention, the first injection molded part 1 includes: a mold frame 11 and a mold core 12, the mold core 12 is embedded in the mold frame 11, and the mold core 12 is provided with a plurality of embedded holes 121. A guide column 123 is provided in the embedded hole 121. When the nut 3 is embedded in the embedded hole 121, when the guide rod 24 is inserted into the embedded hole 121, the guide rod 24 abuts against the guide column 123. Thereafter, by pushing the pushing component, the push tube 25 can be pushed to move along the guide rod 24, thereby pushing the nut 3 into the embedded hole 121. Thereafter, the pushing component moves in a direction away from the first injection molded part 1, driving the push tube 25 to move in a direction away from the embedded hole 121, and the push tube 25 is separated from the nut 3.

[0045] like Figure 2 As shown, the pushing assembly includes: a pushing structure 21, a positioning plate 22 and a push plate 23. The positioning plate 22 is arranged parallel to the push plate 23, one end of the guide rod 24 is passed through the positioning plate 22 and the push plate 23, and the push tube 25 is arranged on the surface of the push plate 23 away from the positioning plate 22. The pushing structure 21 is connected to the positioning plate 22 and the push plate 23. The pushing structure 21 has a switchable pushed state and a reset state. When the pushing structure 21 is in the pushed state, the pushing structure 21 drives the push plate 23 to move in a direction close to the first injection molded part 1, and then drives the push tube 25 to move in a direction close to the embedded hole 121. When the pushing structure 21 is in the reset state, the pushing structure 21 drives the push plate 23 to move in a direction away from the first injection molded part 1, and then drives the push tube 25 to move in a direction away from the nut 3.

[0046] Specifically, one end of the guide rod 24 passes through the push plate 23 and is connected to the positioning plate 22. The push plate 23 can slide along the guide rod 24. The other end of the guide rod 24 is sleeved with a push tube 25 and a nut 3. The pushing structure 21 is connected to the positioning plate 22 and the push plate 23. When the pushing structure 21 is pushed, the pushing structure 21 drives the push plate 23 toward the first injection molded part 1, and the push plate 23 drives the push tube 25 along the guide rod 24 to push the nut 3 into the embedded hole 121. Thereafter, when the pushing structure 21 is released, the pushing structure 21 automatically resets and moves away from the first injection molded part 1, thereby driving the push plate 23 away from the first injection molded part 1. The push plate 23 drives the push tube 25 to separate the push tube 25 from the nut 3.

[0047] Furthermore, in an embodiment of the present invention, the pushing structure 21 includes a handle 211, a push rod 212, and an elastic member 213. The first end of the push rod 212 is connected to the handle 211, the second end of the push rod 212 passes through the positioning plate 22 and is connected to the push plate 23, and the elastic member 213 is sleeved on the push rod 212 and located between the handle 211 and the positioning plate 22.

[0048] Furthermore, the pushing structure 21 further includes a bearing 214 . The bearing 214 is disposed on a surface of the positioning plate 22 facing the pushing plate 23 , and the push rod 212 passes through the bearing 214 .

[0049] like Figure 11 As shown, the pushing assembly further includes a positioning post 221, which is provided through the positioning plate 22 and the push plate 23 and extends outside the push plate 23. The first injection molded part 1 is provided with a positioning hole 122, into which the positioning post 221 can be inserted.

[0050] Specifically, if Figure 11 、 Figure 12 and Figure 13 As shown, before inserting the nut 3 into the embedding hole 121, the positioning post 221 is first inserted into the positioning hole 122, and the guide rod 24 abuts against the guide post 123. The handle 211 is pushed toward the first injection molded part 1, the elastic member 213 is compressed, and the push rod 212 drives the push plate 23 toward the first injection molded part 1, thereby driving the push tube 25 toward the embedding hole 121. The push tube 25 pushes the nut 3 to move, thereby pushing the nut 3 into the embedding hole 121.

[0051] When the handle 211 is released, the elastic member 213 returns to its original position, driving the handle 211 to move away from the first injection molded part 1. The handle 211 drives the push rod 212 to move away from the first injection molded part 1. The push rod 212 drives the push plate 23 to move away from the first injection molded part 1. The push plate 23 drives the push tube 25 to move away from the nut 3, so that the push tube 25 is separated from the nut 3.

[0052] In the embodiment of the present invention, the handle 211 is connected to the positioning plate 22 via a pair of push rods 212 , and an elastic member 213 is sleeved on the outside of each push rod 212 .

[0053] like Figure 1 As shown, after the nut 3 is fed into the embedded hole 121 , the second injection molded part 4 can be molded together with the first injection molded part 1 .

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A device for embedding nuts in injection molded parts, characterized in that: include: a first injection molded part, a plurality of nuts, and a pushing mechanism; The first injection molded part is provided with a plurality of buried holes, the number of the buried holes matches the number of the nuts, and the buried holes are used to accommodate the nuts; The pushing mechanism includes: a pushing assembly, a plurality of guide rods and a plurality of push tubes, wherein the plurality of guide rods are provided on the pushing assembly, the push tube and the nut are sleeved on the outer surface of each guide rod, the push tube is connected to the pushing mechanism, and the guide rod can be inserted into the embedded hole; When the pushing assembly moves in a direction close to the first injection molded part, the pushing assembly can drive the push tube to move in a direction close to the embedding hole, so as to push the nut into the embedding hole; When the pushing assembly is moving in a direction away from the first injection molded part, the pushing assembly can drive the push tube to move in a direction away from the embedded hole to separate from the nut, wherein the end face of the push tube in contact with the nut is a concave-convex end face.

2. The embedding device for a nut in an injection molded part according to claim 1, characterized in that: The concave-convex end surface is at least one of a ring matrix end surface, a grid matrix end surface, a boss matrix end surface or a horizontal stripe matrix end surface.

3. The embedding device for a nut in an injection molded part according to claim 1, characterized in that: The push tube is a magnetization-resistant push tube.

4. The embedding device for nuts in injection molded parts according to claim 3, characterized in that: The push tube is a plastic push tube or a copper push tube.

5. The embedding device for nuts in injection molded parts according to claim 1, characterized in that: A guide column is provided in the embedding hole. When the guide rod is inserted into the embedding hole, the guide rod abuts against the guide column.

6. The embedding device for a nut in an injection molded part according to claim 1, characterized in that: The pushing assembly includes: a pushing structure, a positioning plate and a pushing plate; The positioning plate is arranged parallel to the push plate, one end of the guide rod is passed through the positioning plate and the push plate, and the push tube is arranged on the surface of the push plate away from the positioning plate; The pushing structure is connected to the positioning plate and the push plate, and the pushing structure has a switchable pushed state and a reset state. When the pushing structure is in the pushed state, the pushing structure drives the push plate to move toward the first injection molded part, and the push plate drives the push tube to move toward the embedded hole. When the pushing structure is in the reset state, the pushing structure drives the push plate to move in a direction away from the first injection molded part, and the push plate drives the push tube to move in a direction away from the nut.

7. The embedding device for a nut in an injection molded part according to claim 6, characterized in that: The pushing structure includes: a handle, a push rod and an elastic member; The first end of the push rod is connected to the handle, the second end of the push rod passes through the positioning plate and is connected to the push plate, the elastic member is sleeved outside the push rod, and the elastic member is located between the handle and the positioning plate; When the handle is pushed, the push rod can drive the push plate to move toward the first injection molded part. When the external force of the handle disappears, the elastic part resets and the push rod can drive the push plate to move away from the first injection molded part.

8. The embedding device for nuts in injection molded parts according to claim 7, characterized in that: The pushing structure further includes a bearing, which is arranged on a surface of the positioning plate facing the pushing plate, and the push rod is passed through the bearing.

9. The embedding device for nuts in injection molded parts according to claim 6, characterized in that: The pushing assembly further includes a positioning post, which is provided through the positioning plate and the pushing plate and extends outside the pushing plate; The first injection molded part is provided with a positioning hole, and the positioning post can be inserted into the positioning hole.

10. The embedding device for nuts in injection molded parts according to claim 1, characterized in that: The first injection molded part includes: a mold core and a mold frame, the mold core is embedded in the mold frame, and the mold core is provided with the embedded hole.

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