A cavity structure in-mold assembly injection molding insert assembly tooling

Abstract

The utility model discloses a kind of injection molding insert assembly tooling of cavity structure in-mold assembly, for producing double-shot encapsulation product, the double-shot encapsulation product includes first injection molding part, at least one second injection molding part and insert, the second injection molding part is integrally injection molded with first injection molding part, and the injection molding insert assembly tooling includes: six-axis robot;Pick installation tooling, this kind of injection molding insert assembly tooling of cavity structure in-mold assembly, six-axis robot drives fixed plate to move, make support plate directly opposite pick fixture side and second injection molding part adhere, adjust driving part drives pick fixture to move close to second injection molding part again, until insert and second injection molding part are fixed by buckling, to ensure when insert in-mold assembly in double-shot injection molding machine, first injection molding part and second injection molding part do not move position on die, to ensure that insert and second injection molding part are stably and accurately automatically installed buckling.

Description

Technical Field

[0001] This utility model relates to the field of injection molding insert assembly tooling technology, and in particular to an injection molding insert assembly tooling for cavity structure in-mold assembly. Background Technology

[0002] Our company currently produces, such as Figure 7 The hook shown is used to inject molten plastic material into the first injection mold cavity of a double-injection molding machine through the first barrel to form a first injection molded part 1 and a second injection molded part 2 (e.g., ...). Figure 4 As shown), then install the insert 3 onto the second injection molded part 2 (as shown). Figure 6 As shown), at this time, a closed assembly with a cavity structure is formed between the second injection part 2 and the insert 3. Finally, the molten plastic material is injected into the outer surface of the assembly of the second injection mold through the second barrel of the double injection molding machine to form the third injection part 12, thus forming a double injection overmolded product.

[0003] Currently, no equipment can automatically install insert 3 onto the second injection molded part 2. Therefore, how to automatically install insert 3 onto the second injection molded part 2 is an urgent problem to be solved. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides an injection molding insert assembly tooling for cavity structure in-mold assembly.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a cavity structure in-mold injection molding insert assembly fixture for producing double-shot overmolded products, wherein the double-shot overmolded product includes a first injection molded part, at least one second injection molded part, and an insert, wherein the second injection molded part is integrally injection molded with the first injection molded part, and the injection molding insert assembly fixture includes: Six-axis robot; The part-retrieving and installation fixture includes a fixed plate, which is fixedly installed on the output end of the six-axis robot. One side of the fixed plate is provided with a drive component, a support plate, and a part-retrieving fixture for adsorbing and fixing the insert. The drive component is used to drive the part-retrieving fixture to move closer to or away from the support plate.

[0006] Preferably, it also includes a positioning fixture, which includes a support platform and at least one positioning groove adapted to the insert.

[0007] Preferably, the positioning fixture further includes a vertical plate, the support platform is horizontally fixed to the top surface of the vertical plate, at least one positioning post is horizontally fixedly installed on one side of the vertical plate, and at least one positioning guide sleeve adapted to the positioning post is horizontally fixedly installed on one side of the fixing plate.

[0008] Preferably, it also includes a support frame on which a vibratory feeder and a four-axis robot with visual recognition function are fixedly mounted.

[0009] Preferably, each positioning slot on the support platform is provided with ball screws on both sides.

[0010] Preferably, at least one limiting post is fixed on one side of the fixing plate on which the support plate is installed.

[0011] Preferably, the second injection molded part has a slot and a first groove in sequence from the outside to the inside on the side facing the insert. A first rib is provided between the slot and the first groove. The insert has a second groove and a second rib adapted to the slot on the side facing the second injection molded part. A plurality of support ribs are provided at equal intervals in the second groove. There are side grooves on both sides of the support ribs and the second ribs that are adapted to the thickness of the first ribs. When the insert is fastened to the second injection molded part, the second rib is engaged in the slot, the support ribs are located in the first groove, and the first ribs are located in the second groove and the side grooves.

[0012] Preferably, the outer surface of the insert has a planar portion.

[0013] Compared with the prior art, the beneficial effects that this utility model can achieve are: The six-axis robot moves the fixed plate so that the support plate faces the part-removing fixture and fits against the second injection molded part. Then, the drive component is adjusted to move the part-removing fixture closer to the second injection molded part until the insert is fastened and fixed to the second injection molded part. This ensures that when the insert is assembled in the mold of the double injection molding machine, the first and second injection molded parts will not move on the mold core, thus ensuring that the insert and the second injection molded part are stably and accurately installed and fastened automatically. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the assembly tooling structure for the injection-molded insert of this utility model; Figure 2 This is a schematic diagram of the component removal and installation tooling, positioning guide sleeve, and limiting post structure of this utility model; Figure 3 This is a schematic diagram of the positioning fixture structure of this utility model; Figure 4 This is a schematic diagram of the structure of the first and second injection molded parts of this utility model; Figure 5 This is a schematic diagram of the insert structure of this utility model; Figure 6 This is a schematic diagram of the assembled structure of the first injection molded part, the second injection molded part, and the insert of this utility model; Figure 7 This is a schematic diagram of the double-shot overmolding product structure of this utility model; Figure 8This is a schematic diagram of the structure of the present invention, showing the first and second injection molded parts on the mold core after injection molding, with the second injection molded part in a suspended state. Figure 9 This is a schematic diagram of the structure of the second injection molded part and insert after assembly on the mold core according to this utility model; The components are as follows: 1. First injection molded part; 2. Second injection molded part; 21. Slot; 22. First groove; 23. First rib; 3. Insert; 31. Support rib; 32. Second rib; 33. Second groove; 34. Side groove; 35. Flat part; 4. Six-axis robot; 5. Part-removing and installation fixture; 51. Fixing plate; 52. Support plate; 53. Part-removing jig; 54. Drive component; 6. Positioning jig; 61. Support platform; 611. Positioning groove; 62. Vertical plate; 63. Positioning post; 64. Ball screw; 7. Positioning guide sleeve; 8. Limiting post; 9. Support frame; 10. Vibratory feeder; 11. Four-axis robot; 12. Third injection molded part. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of this utility model.

[0016] like Figures 1-6 As shown, this utility model provides an injection molding insert assembly tooling for in-mold assembly of a cavity structure, used to produce double-shot overmolded products. The double-shot overmolded products include a first injection molded part 1, at least one second injection molded part 2, and an insert 3. The second injection molded part 2 is integrally injection molded with the first injection molded part 1. The injection molding insert assembly tooling includes a six-axis robot 4 and a part picking and installation tooling 5. The part-picking and installation fixture 5 includes a fixed plate 51. The output end of the six-axis robot 4 is fixedly mounted on the fixed plate 51. One side of the fixed plate 51 is provided with a drive component 54 (the drive component 54 here can be a cylinder), a support plate 52, and a part-picking fixture 53 for adsorbing and fixing the insert 3 (a suction cup can be used, which is existing technology and will not be described in detail here). The drive component 54 is used to drive the part-picking fixture 53 to move closer to or away from the support plate 52. It should be noted that when molten plastic material is injected into the first injection mold cavity through the first barrel (not shown in the figure) of the double-injection molding machine to form an integral first injection molded part 1 and second injection molded part 2, the second injection molded part 2 is suspended in the mold core, such as... Figure 8 As shown (the specific injection molding principle is existing technology and will not be elaborated here); Specifically, when insert 3 needs to be installed (the insert 3 to be installed has been attracted and fixed by the pick-up fixture 53), the six-axis robot 4 moves the fixing plate 51, so that the side of the support plate 52 facing the pick-up fixture 53 is in contact with the second injection molded part 2. Then, the drive component 54 is adjusted to move the pick-up fixture 53 closer to the second injection molded part 2 until the insert 3 is fastened and fixed to the second injection molded part 2 (e.g., ...). Figure 9 As shown in the figure, this ensures that when the insert 3 is assembled in the mold of the double injection molding machine, the first injection part 1 and the second injection part 2 will not move on the mold core, thereby ensuring that the insert 3 and the second injection part 2 are stably and accurately installed and engaged automatically.

[0017] like Figure 1 and Figure 3 As shown, it also includes a positioning fixture 6, which includes a support platform 61. The support platform 61 has at least one positioning groove 611 that is adapted to the insert 3 (two positioning grooves 611 are shown in the figure here as an example, and there are also two corresponding part removal fixtures 53). By placing the insert 3 to be assembled in the positioning groove 611 with the flat part 35 of the insert 3 facing upward, it is convenient for the six-axis robot 4 to drive the part-picking fixture 53 to perform precise adsorption and material picking.

[0018] like Figure 2 and Figure 3 As shown, the positioning fixture 6 also includes a vertical plate 62, a support platform 61 is horizontally fixed to the top surface of the vertical plate 62, at least one positioning post 63 is horizontally fixedly installed on one side of the vertical plate 62, and at least one positioning guide sleeve 7 adapted to the positioning post 63 is horizontally fixedly installed on one side of the fixing plate 51. The six-axis robot 4 drives the part-picking and installation fixture 5 to move, so that the positioning post 63 is aligned and inserted into the positioning guide sleeve 7. At this time, the part-picking fixture 53 is located directly above the insert 3 in the positioning groove 611. Then, by adjusting the drive component 54, the part-picking fixture 53 moves closer to the insert 3 until it contacts it, adsorbs and picks up the material, and then the drive component 54 is adjusted to move away from the support table 61 to complete the material picking, thereby completing the precise material picking work of the insert 3.

[0019] like Figure 1 As shown, it also includes a support frame 9, on which a vibratory plate 10 is fixedly mounted (the vibratory plate 10 enables the insert 3 on it to face upwards on the flat part 35) and a four-axis robot 11 with visual recognition function (this is prior art, and the specific working principle will not be described in detail here). The insert 3 to be installed is placed on the vibratory plate 10. A four-axis robot 11 with visual recognition function grasps and adsorbs the insert 3 with the upper surface 35 of the vibratory plate 10 facing upwards, and then places it in the positioning groove 611 on the support platform 61. This avoids the trouble of manually placing the insert 3 and saves manpower.

[0020] like Figure 3 As shown, each positioning slot 611 on the support platform 61 is provided with a ball screw 64 on both sides. Specifically, the ball screw 64 is composed of a spring, a steel ball and a housing (existing technology). When in use, the steel ball contacts the insert 3, and the rebound force of the spring compression rebound is applied to the insert 3 through the steel ball to further clamp and fix it, so that the insert 3 is more stable on the support platform 61.

[0021] like Figure 2 As shown, at least one limiting post 8 is fixed on one side of the fixed plate 51 on which the support plate 52 is installed. By setting the limiting post 8, the six-axis robot 4 drives the part picking and installation tooling 5 to pick up the insert 3 and before it needs to be installed, the limiting post 8 contacts the mold core of the mold and performs positioning in the direction perpendicular to the top surface of the mold core, including the subsequent precise assembly of the insert 3.

[0022] like Figures 4-6 As shown, the second injection molded part 2 has a slot 21 and a first groove 22 in sequence from the outside to the inside on the side facing the insert 3. A first rib 23 is provided between the slot 21 and the first groove 22. The insert 3 has a second groove 33 and a second rib 32 adapted to the slot 21 on the side facing the second injection molded part 2. Several support ribs 31 are provided at equal intervals in the second groove 33. There are side grooves 34 on both sides of the support ribs 31 and the second rib 32 that are adapted to the thickness of the first rib 23. When the insert 3 is fastened to the second injection molded part 2, the second rib 32 is engaged in the slot 21, the support ribs 31 are located in the first groove 22, and the first rib 23 is located in the second groove 33 and the side groove 34. When the third injection part 12 is being injection molded, the pressure at the injection port is high and the pressure on the side away from the injection port is low. At this time, the high temperature inside the mold cavity after the double injection molding machine closes the mold will heat the insert 3 and the second injection part 2, making them soft, which will result in poor rigidity and affect the injection molding. However, by setting the support rib 31, it is not only convenient to fasten and fix the insert 3 and the second injection part 2, but the support rib 31 also abuts against the inner wall of the first groove 22 to form a rigid body, which enhances the rigidity of the semi-finished product. In addition, the slot 21 cooperates with the second protruding rib 32 to achieve a good sealing and clamping effect, increasing the sealing of the insert 3 and the second injection molded part 2, and preventing the rubber material from seeping into the cavity structure during the subsequent injection molding of the third injection molded part 12.

[0023] like Figure 6 As shown, the outer surface of the insert 3 is provided with a flat portion 35. This arrangement facilitates the subsequent removal fixture 53 (suction cup) to better adhere and fix the insert 3.

[0024] 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 cavity-structure in-mold assembly fixture for injection-molded inserts, characterized in that, For producing double-shot overmolded products, the double-shot overmolded products include a first injection molded part (1), at least one second injection molded part (2), and an insert (3), wherein the second injection molded part (2) is integrally injection molded with the first injection molded part (1), and the injection molded insert assembly fixture includes: Six-axis robot (4); The part-removing installation fixture (5) includes a fixed plate (51). The fixed plate (51) is fixedly installed at the output end of the six-axis robot (4). The fixed plate (51) has a drive component (54), a support plate (52), and a part-removing fixture (53) for adsorbing and fixing the insert (3) on one side. The drive component (54) is used to drive the part-removing fixture (53) to move closer to or away from the support plate (52).

2. The injection molding insert assembly fixture with cavity structure assembled in-mold according to claim 1, characterized in that: It also includes a positioning fixture (6), which includes a support platform (61) and at least one positioning groove (611) adapted to the insert (3).

3. The injection molding insert assembly fixture for in-mold assembly of a cavity structure according to claim 2, characterized in that: The positioning fixture (6) also includes a vertical plate (62), the support platform (61) is horizontally fixed to the top surface of the vertical plate (62), at least one positioning post (63) is horizontally fixed on one side of the vertical plate (62), and at least one positioning guide sleeve (7) adapted to the positioning post (63) is horizontally fixed on one side of the fixing plate (51).

4. The injection molding insert assembly fixture for in-mold assembly of a cavity structure according to claim 3, characterized in that: It also includes a support frame (9), on which a vibratory plate (10) and a four-axis robot (11) with visual recognition function are fixedly installed.

5. The injection molding insert assembly fixture for in-mold assembly of a cavity structure according to claim 2, characterized in that: Each positioning slot (611) on the support platform (61) is provided with ball screws (64) on both sides.

6. The injection molding insert assembly fixture for in-mold assembly of a cavity structure according to claim 1, characterized in that: At least one limiting post (8) is fixed on one side of the fixing plate (51) on which the support plate (52) is installed.

7. The injection molding insert assembly fixture for in-mold assembly of a cavity structure according to claim 1, characterized in that: The second injection molded part (2) has a slot (21) and a first groove (22) in sequence from the outside to the inside on the side facing the insert (3). There is a first rib (23) between the slot (21) and the first groove (22). The insert (3) has a second groove (33) and a second rib (32) adapted to the slot (21) on the side facing the second injection molded part (2). Several support ribs (31) are provided at equal intervals in the second groove (33). There are side grooves (34) on both sides of the support ribs (31) and the second rib (32) adapted to the thickness of the first rib (23). When the insert (3) is fastened to the second injection molded part (2), the second rib (32) is engaged in the slot (21). The support rib (31) is located in the first groove (22). The first rib (23) is located in the second groove (33) and the side groove (34).

8. The injection molding insert assembly fixture for in-mold assembly of a cavity structure according to claim 7, characterized in that: The outer surface of the insert (3) is provided with a flat portion (35).

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