Injection molding part nut implanting device

Abstract

The utility model discloses an injection-molded part nut implanting device, which relates to the field of injection molding and comprises an ultrasonic welding head, a base, a support plate, a first positioning structure, a second positioning structure and a positioning seat for positioning an injection-molded part, the plane of the upper end of the support plate is arranged along the gravity direction, the positioning seat is arranged at the upper end of the support plate, and a concave cavity is arranged in the injection-molded part. The positioning seat is in clearance fit with the concave cavity, the first positioning structure and the second positioning structure are arranged at the two ends of the upper end face of the positioning seat respectively, an embedding groove corresponding to the embedding position is formed in the upper end face of the positioning seat, and the embedding groove is formed between the first positioning structure and the second positioning structure. During use, the concave cavity of the injection molding shell is hung on the positioning seat, the plastic shell is supported and positioned through the upper end face of the positioning seat, the first positioning structure and the second positioning structure, and the plastic shell can be rapidly hung on the positioning seat and also can be rapidly taken down from the positioning seat.

Description

Technical Field

[0001] The utility model relates to the field of injection molding, in particular to a nut implanting device for an injection molded part. Background Art

[0002] Engineering plastics are widely used in the shells of most existing consumer products, such as household appliances, communication equipment, and mid-to-high-end toys. In order to install and fix the internal parts and components, copper nuts need to be directly embedded in the plastic shell. In traditional processing, the nut is manually placed in the mold by the staff, and the nut is embedded in the shell after injection molding. During continuous processing, the mold temperature is high, and there is a risk of burns when the staff manually places the nut, which is extremely unsafe. Therefore, ultrasonic welding equipment is used to embed the copper nut, and the nut is implanted after the injection molded part is molded and cooled.

[0003] The ultrasonic welding equipment will apply pressure and high-frequency vibration to the nut through the welding head at the same time. The high-frequency vibration is transferred to the nut to be embedded, so that the nut and the plastic hole generate heat by friction. The generated heat energy is transferred to the embedding hole of the plastic shell. Part of the plastic in the embedding hole will melt and flow into the bottom of the embedding hole and the knurled pattern on the outer surface of the nut. After solidification, the nut is fixed in the embedding hole of the plastic shell. When embedding the copper nut, it is necessary to use a positioning fixture to fix the plastic shell to prevent the plastic shell from deviating when the nut is implanted.

[0004] In such Figure 3 , 4 When the nut is embedded in the plastic shell shown in the figure, the outer surface structure of the plastic shell is complex and the quality of the outer surface of the plastic shell is particularly required. When the plastic shell is clamped by a clamping jaw, the clamping jaw directly contacts the outer surface of the plastic shell, causing friction marks on the outer surface of the plastic shell. If a positioning seat with a groove is used to accommodate and position the plastic shell, since the position of the plastic shell where the nut needs to be implanted is located on the side of the plastic shell, the one side of the plastic shell where the nut needs to be implanted is far away from the other side of the plastic shell, resulting in a deeper and larger positioning groove of the jig. The larger size and specifications of the jig will increase the cost of using the jig.

[0005] Therefore, a nut implanting device for injection molded parts is proposed, which can position and support plastic parts without damaging their outer surfaces, thereby improving work efficiency. Utility Model Content

[0006] The purpose of the utility model is to provide a nut implanting device for an injection molded part to solve the problems raised in the above background technology.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a device for implanting nuts of injection molded parts, comprising: an ultrasonic welding head, a base, a support plate, a first positioning structure, a second positioning structure and a positioning seat for positioning the injection molded parts, wherein the lower end of the support plate is arranged on the upper end surface of the base, the plane where the upper end of the support plate is located is arranged along the gravity direction, the positioning seat is arranged on the upper end of the support plate, a concave cavity is arranged inside the injection molded part, the positioning seat and the concave cavity gap are matched, the first positioning structure and the second positioning structure are respectively arranged at the two ends of the upper end surface of the positioning seat, the first positioning structure and the second positioning structure penetrate the injection molded part, the upper end surface of the positioning seat is provided with an embedding groove corresponding to the embedding position, and the embedding groove is arranged between the first positioning structure and the second positioning structure. The upper end surface of the positioning seat is in contact with the upper end surface of the concave cavity. The support plate is an L-shaped plate body, the lower end of the support plate is fixed to the base, and the support plate is used to install the positioning seat and keep the positioning seat in a vertical state. The embedding groove is used to locate the position where the nut needs to be embedded in the plastic shell.

[0008] When in use, the concave cavity of the injection-molded shell is hung on the positioning seat, and the upper end of the positioning seat supports the plastic shell. The first positioning structure and the second positioning structure will pass through the hole on the plastic shell to further stabilize and position the plastic shell. The plastic shell can be quickly hung on the positioning seat, and the plastic shell can also be quickly removed from the positioning seat.

[0009] Preferably, the first positioning structure is a cuboid, the first positioning structure is perpendicular to the rounded edges of the upper end surface of the positioning seat, and the length direction of the first positioning structure is perpendicular to the length direction of the positioning seat.

[0010] Preferably, the second positioning structure is a cuboid, the second positioning structure is perpendicular to the rounded edges of the upper end surface of the positioning seat, and the length direction of the second positioning structure is parallel to the length direction of the positioning seat.

[0011] Preferably, the ultrasonic horn is a conical ultrasonic horn, and the lower end surface of the ultrasonic horn is a conical surface.

[0012] Preferably, a plurality of rib accommodating grooves are formed on one end of the upper end surface of the positioning seat away from the supporting plate.

[0013] Preferably, a first slot is formed on the upper end surface of the positioning seat, and the lower end of the first positioning structure is detachably disposed inside the first slot.

[0014] Preferably, a second slot is formed on the upper end surface of the positioning seat, and the lower end of the second positioning structure is detachably disposed inside the second slot.

[0015] Preferably, it also includes a positioning pin, the upper end of which is arranged on the lower end surface of the positioning seat, and the lower end of which passes through the injection molded part.

[0016] Preferably, a spring is further included, a surface of the positioning seat in contact with the support plate is provided with a slide groove, the upper end of the positioning pin is slidably arranged in the slide groove, and two ends of the spring respectively abut against the upper end of the positioning pin and the inner wall of the slide groove.

[0017] Preferably, it also includes a heating block, the positioning seat and the heating block are respectively arranged on the opposite side surfaces of the upper end of the support plate, the upper end surface of the heating block is concavely provided with a nut accommodating groove, and the nut accommodating groove and the embedding groove are symmetrically arranged about the support plate.

[0018] The beneficial effect of the utility model is that when in use, the concave cavity of the injection-molded shell is hung on the positioning seat, and the plastic shell is supported and positioned by the upper end surface of the positioning seat, the first positioning structure and the second positioning structure. The plastic shell can be quickly hung on the positioning seat, and the plastic shell can also be quickly removed from the positioning seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings further illustrate the present invention, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0020] Figure 1 A schematic diagram of the structure of a nut implanting device for an injection molded part provided in one embodiment of the utility model Figure 1 ;

[0021] Figure 2 A schematic diagram of the structure of a nut implanting device for an injection molded part provided in one embodiment of the utility model Figure 2 ;

[0022] Figure 3 A schematic diagram of the structure of an injection molded part provided in one embodiment of the utility model;

[0023] Figure 4 A schematic diagram of the structure of an injection molded part provided in one embodiment of the utility model;

[0024] Figure 5 This is a schematic structural diagram of an injection molded part provided in one embodiment of the utility model.

[0025] Figure numerals: 1: base; 2: support plate; 3: first positioning structure; 4: second positioning structure; 5: positioning seat; 6: injection molded part. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0027] It should be noted that in the present invention, unless otherwise stated, when an element is referred to as being "fixed to" or "set on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The directional words used, such as "upper, lower, left, right" generally refer to the upper, lower, left, right, and right sides of the element. Figure 1 "Inside and outside" refer to the inside and outside of a specific outline. "Far and near" refer to the far and near relative to a certain component. Embodiment 1

[0028] like Figure 1-Figure 2 As shown in , an embodiment of the utility model provides a nut implanting device for an injection molded part 6, comprising: an ultrasonic welding head, a base 1, a support plate 2, a first positioning structure 3, a second positioning structure 4 and a positioning seat 5 for positioning the injection molded part 6, wherein the lower end of the support plate 2 is arranged on the upper end surface of the base 1, the plane where the upper end of the support plate 2 is located is arranged along the gravity direction, the positioning seat 5 is arranged on the upper end of the support plate 2, a concave cavity is arranged inside the injection molded part 6, the positioning seat 5 is matched with the concave cavity gap, the first positioning structure 3 and the second positioning structure 4 are respectively arranged at the two ends of the upper end surface of the positioning seat 5, the first positioning structure 3 and the second positioning structure 4 penetrate the injection molded part 6, and the upper end surface of the positioning seat 5 is provided with an implantation groove corresponding to the implantation position, and the implantation groove is arranged between the first positioning structure 3 and the second positioning structure 4. The upper end surface of the positioning seat 5 is in contact with the upper end surface of the concave cavity. The support plate 2 is an L-shaped plate body, the lower end of the support plate 2 is fixed to the base 1, and the support plate 2 is used to install the positioning seat 5 and keep the positioning seat 5 in a vertical state. The embedding groove is used to locate the position where the nut needs to be embedded in the plastic shell.

[0029] When in use, the concave cavity of the injection-molded housing is hung on the positioning seat 5, and the upper end of the positioning seat 5 supports the plastic housing. The first positioning structure 3 and the second positioning structure 4 will pass through the hole on the plastic housing to further stabilize and position the plastic housing. The plastic housing can be quickly hung on the positioning seat 5, and the plastic housing can also be quickly removed from the positioning seat 5.

[0030] The first positioning structure 3 is a cuboid, and the first positioning structure 3 is perpendicular to the rounded edges of the upper end surface of the positioning seat 5 , and the length direction of the first positioning structure 3 is perpendicular to the length direction of the positioning seat 5 .

[0031] The second positioning structure 4 is a cuboid, and the second positioning structure 4 is perpendicular to the rounded edges of the upper end surface of the positioning seat 5 . The length direction of the second positioning structure 4 is parallel to the length direction of the positioning seat 5 .

[0032] The ultrasonic horn is a conical ultrasonic horn, and the lower end surface of the ultrasonic horn is a conical surface.

[0033] A plurality of rib receiving grooves are formed on the upper end surface of the positioning seat 5 away from the supporting plate 2 .

[0034] A first slot is formed on the upper end surface of the positioning seat 5 , and the lower end of the first positioning structure 3 is detachably disposed inside the first slot.

[0035] The upper end surface of the positioning seat 5 is provided with a second slot, and the lower end of the second positioning structure 4 is detachably disposed inside the second slot. Embodiment 2

[0036] like Figure 5 As shown in , a nut implanting device for an injection molded part 6 provided by an embodiment of the utility model is different from the above-mentioned embodiment 1 in that: the nut implanting device for an injection molded part 6 described in this embodiment further includes: a positioning pin and a spring, the upper end of the positioning pin is arranged on the lower end surface of the positioning seat 5, and the lower end of the positioning pin penetrates the injection molded part 6. A sliding groove is concavely provided on the surface of the positioning seat 5 in contact with the support plate 2, the upper end of the positioning pin is slidably arranged in the sliding groove, and the two ends of the spring respectively abut against the upper end of the positioning pin and the inner wall of the sliding groove. Embodiment 3

[0037] A nut implanting device for an injection molded part 6 provided in one embodiment of the utility model is different from the above-mentioned embodiment 1 in that: the nut implanting device for an injection molded part 6 described in this embodiment also includes: a heating block, the positioning seat 5 and the heating block are respectively arranged on the opposite side surfaces of the upper end of the support plate 2, and the upper end surface of the heating block is concavely provided with a nut accommodating groove, and the nut accommodating groove and the implanting groove are symmetrically arranged about the support plate 2.

[0038] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, which should be considered as the scope of this specification.

Claims

1. A nut implanting device for injection molded parts, characterized in that: include: An ultrasonic welding head, a base, a support plate, a first positioning structure, a second positioning structure and a positioning seat for positioning an injection molded part, wherein the lower end of the support plate is arranged on the upper end surface of the base, the plane where the upper end of the support plate is located is arranged along the direction of gravity, the positioning seat is arranged on the upper end of the support plate, a concave cavity is arranged inside the injection molded part, and the positioning seat is matched with the concave cavity gap, the first positioning structure and the second positioning structure are respectively arranged at the two ends of the upper end surface of the positioning seat, the first positioning structure and the second positioning structure penetrate the injection molded part, and an implantation groove corresponding to the implantation position is opened on the upper end surface of the positioning seat, and the implantation groove is arranged between the first positioning structure and the second positioning structure.

2. The device for inserting a nut into an injection molded part according to claim 1, characterized in that: The first positioning structure is a cuboid, the first positioning structure is perpendicular to the rounded edges of the upper end surface of the positioning seat, and the length direction of the first positioning structure is perpendicular to the length direction of the positioning seat.

3. The device for inserting a nut into an injection molded part according to claim 1, characterized in that: The second positioning structure is a cuboid, the second positioning structure is perpendicular to the rounded edges of the upper end surface of the positioning seat, and the length direction of the second positioning structure is parallel to the length direction of the positioning seat.

4. The device for inserting a nut into an injection molded part according to claim 1, characterized in that: The ultrasonic horn is a conical ultrasonic horn, and the lower end surface of the ultrasonic horn is a conical surface.

5. The device for inserting a nut into an injection molded part according to claim 1, characterized in that: A plurality of rib accommodating grooves are formed on one end of the upper end surface of the positioning seat away from the supporting plate.

6. The device for inserting a nut into an injection molded part according to claim 2, characterized in that: The upper end surface of the positioning seat is provided with a first slot, and the lower end of the first positioning structure is detachably arranged inside the first slot.

7. The device for inserting a nut into an injection molded part according to claim 3, characterized in that: The upper end surface of the positioning seat is provided with a second slot, and the lower end of the second positioning structure is detachably arranged inside the second slot.

8. The device for inserting a nut into an injection molded part according to claim 1, characterized in that: It also includes a positioning pin, the upper end of which is arranged on the lower end surface of the positioning seat, and the lower end of which passes through the injection molded part.

9. The device for inserting a nut into an injection molded part according to claim 8, characterized in that: It also includes a spring, a surface of the positioning seat in contact with the support plate is concavely provided with a slide groove, the upper end of the positioning pin is slidably arranged in the slide groove, and two ends of the spring respectively abut against the upper end of the positioning pin and the inner wall of the slide groove.

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