Injection molding embedding jig for multi-size nuts

By using injection molding fixtures for nuts of various sizes and employing a gripper system driven by robots and cylinders, the automated and precise positioning and efficient installation of nuts are achieved. This solves the problems of low efficiency, low precision, and safety associated with traditional manual insertion methods, thereby improving production efficiency and yield.

CN223657481UActive Publication Date: 2025-12-12ALFAR SUZHOU AUTOMATION TECH
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Patent Information

Application Number
CN202520055574.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2025-12-12
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

Traditional injection molding production methods that involve manually inserting metal nuts are cumbersome, time-consuming, have low precision, poor safety, and high costs. They also carry the risk of missing parts, affecting production efficiency and yield.

Method used

An injection molding fixture using multi-size nuts is employed, utilizing a robot and cylinder-driven gripper system to automatically insert the nuts. Combined with a mold positioner and ejection mechanism, this achieves precise nut positioning and efficient installation.

Benefits of technology

It improved the installation efficiency and accuracy of nuts, reduced labor costs, enhanced production safety, and increased the yield rate.

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    Figure CN223657481U_ABST
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Abstract

The injection molding embedding jig comprises a middle plate insert embedding module, a movable mold embedding and taking-out module and a supporting plate, the supporting plate is provided with a robot side posture connecting module, the middle plate insert embedding module is provided with a first mold positioner, and the middle of the middle plate insert embedding module is movably connected with a first nut taking and embedding clamping jaw through a finger air cylinder; one end of the first limiting sleeve is provided with a first ejection mechanism and is fixedly connected with the middle plate insert embedding module, the outer wall of the first mold positioner is provided with a first elastic clamping point, the four corners of the movable mold embedding and taking-out module are provided with second mold positioners, the middle of the movable mold embedding and taking-out module is fixedly connected with a second limiting sleeve, and one end of the second limiting sleeve is provided with a pushing air cylinder; and a second nut is clamped at the other end of the first mold positioner through a second nut taking and burying clamping jaw, and a first limiting rod is arranged on one side of the first mold positioner. The injection molding embedding jig for the multi-size nuts has the advantages that the efficiency is improved, the mounting precision is improved, the yield is increased, the safety is improved, and the like.
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Description

TECHNICAL FIELD

[0001] The utility model relates to nut injection jig technical field, especially a kind of injection embedding jig of multi-size nut. BACKGROUND

[0002] At present, metal nut is embedded in injection mold is a kind of production mode of embedding metal nut into plastic part, and this production mode of covering metal nut by injection mold simplifies production process and improves the firmness of metal embedded part.The conventional production mode is usually that metal embedded part is loaded manually, i.e.

[0003] The conventional production mode has the following shortcomings: 1. manual operation is complicated, time-consuming is too long, and product production cycle is prolonged;2. manual embedding has the risk of missing loading, and embedded part installation precision is low, resulting in reduced yield rate;3. the temperature in injection machine is high, and operator is easy to be hurt or scalded during loading and unloading operation, so there are safety hazards;4. labor cost is increased, and production efficiency is reduced.

[0004] Therefore, we have developed a kind of injection embedding jig of multi-size nut to solve the above problems. INVENTION CONTENTS

[0005] The utility model aims at overcoming the deficiencies of prior art and provides a kind of injection embedding jig of multi-size nut, which has the advantages of improving efficiency, improving installation precision, improving yield rate and safety, etc.

[0006] To achieve the above object, the utility model adopts the technical scheme of a kind of injection embedding jig of multi-size nut, which includes a middle plate insert embedding module and a movable die embedding and taking out module arranged in parallel, one end of the middle plate insert embedding module is fixedly connected with one end of the movable die embedding and taking out module with a support plate, and a gas pipe busbar is arranged therebetween, a robot side posture connecting module is arranged at the middle position of the support plate, a first die positioner is arranged at each corner of the middle plate insert embedding module, and a plurality of first nut taking and embedding clamping jaws are movably connected by finger air cylinders in the middle, the first nut taking and embedding clamping jaws are provided with first nuts, the first nuts are arranged to the center of first limiting sleeve, a first ejection mechanism is arranged at one end of the first limiting sleeve, and the first limiting sleeve is fixedly connected with the middle plate insert embedding module, and a plurality of first elastic clamping points are evenly arranged on the outer wall of the first die positioner.

[0007] Preferably, the four corners of the movable mold embedding and taking-out module are fixedly connected with a second mold positioner through a fixing member respectively, and a plurality of second limiting sleeves are fixedly connected in the middle, one end of the second limiting sleeve is provided with a pushing air cylinder, and the other end is provided with a second nut embedding clamping jaw, one side of the first mold positioner is provided with a first limiting rod, and one end of the first limiting rod is provided with a first limiting head.

[0008] Preferably, the center of the first limiting sleeve is provided with a through hole, one end of the through hole is provided with a sink groove, the top end of the sink groove is provided with an arc surface, and the first nut embedding clamping jaw is in abutment with the sink groove.

[0009] Preferably, the side wall of the through hole is provided with an open slit, and the open slit is in L-shaped structure.

[0010] Preferably, the first limiting sleeve is provided with a base, the base is provided with a connecting hole, and the bottom end is provided with a groove, and the connecting hole is fixedly connected with the middle plate insert embedding module.

[0011] Preferably, the first ejection mechanism comprises an ejection air cylinder, one end of the ejection air cylinder is provided with a first ejector pin, the first ejector pin is inserted into the through hole, and the ejection air cylinder is fixedly connected with the middle plate insert embedding module through a first ejection support.

[0012] Preferably, one end of the pushing air cylinder is provided with a second ejector pin, and the pushing air cylinder is fixedly connected with the movable mold embedding and taking-out module through a second ejection support.

[0013] Preferably, one end of the pushing air cylinder is provided with a second ejector pin, and the pushing air cylinder is fixedly connected with the movable mold embedding and taking-out module through a second ejection support.

[0014] Preferably, the robot side posture connection module is provided with a flange plate, and the flange plate is connected to the robot.

[0015] Preferably, one end of the second mold positioner is provided with a convex column, and the side wall of the convex column is provided with a plurality of second elastic clamping points distributed in a circle.

[0016] Preferably, one side of the second mold positioner is provided with a second limiting rod, and one end of the second limiting rod is provided with a second limiting head.

[0017] Due to the use of the above technical scheme, the utility model has the following advantages compared with the prior art:

[0018] The utility model discloses a multi -size nut's injection mould embedding fixture carries out one time insert injection mould to the nut of multiple size specifications, multiple quantity nut, improves insert loading and injection efficiency, reduces manual cost, and through the attitude of robot, and the positioning of push mechanism is pushed, improves the installation accuracy, improves the yield ratio simultaneously, does not use artificial feeding and discharging, improves the operation safety. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the perspective view of the multi -size nut's injection mould embedding fixture of the utility model in the end of the middle plate insert burying module.

[0020] Figure 2 It is the perspective view of the multi -size nut's injection mould embedding fixture of the utility model in the end of the movable mould burying and taking out module.

[0021] Figure 3 It is the internal structure schematic view of the multi -size nut's injection mould embedding fixture of the utility model.

[0022] Figure 4 It is the utility model Figure 3 The enlarged view of A in the middle.

[0023] Figure 5 It is the utility model Figure 3 The enlarged view of B in the middle.

[0024] Figure 6 It is the structure schematic view of the first limit sleeve of the utility model. CONCRETE IMPLEMENTING METHOD

[0025] The utility model makes further detailed explanation in combination with the drawings and specific implementation examples.

[0026] Figures 1 to 6The utility model relates to a kind of injection embedding jigs of multi-size nut, including one middle plate insert embedded module 10 and one movable die embedded extraction module 20 being arranged in parallel, one end of middle plate insert embedded module 10 is fixedly connected with one end of movable die embedded extraction module 20 with support plate 30, and between gas pipe busbar 209 is equipped, middle position of support plate 30 is equipped with a robot side posture connecting module 40, robot side posture connecting module 40 is equipped with one flange plate 41, flange plate 41 is connected to robot. Middle plate insert embedded module 10 is equipped with a first mould positioner 101 at each corner, and middle is movably connected with multiple first nut embedded clamping jaw 51 by finger cylinder 50, preferably 4, first nut embedded clamping jaw 51 is clamped with first nut 100, first nut 100 is arranged to the center of first limit sleeve 63, one end of first limit sleeve 63 is equipped with first ejection mechanism, and is fixedly connected with middle plate insert embedded module 10, the outer wall of first mould positioner 101 is equipped with the first elastic clamping point 102 of uniform distribution, first elastic clamping point 102 is clamped with mould, and first ejection mechanism is positioned to the corresponding position of mould with first nut. The four corners of movable die embedded extraction module 20 are fixedly connected with a second mould positioner 201 by fixing piece 204 respectively, and multiple second limit sleeve 73 are fixedly connected in the middle, preferably 6, one end of second limit sleeve 73 is equipped with a push cylinder 70, and the other end is clamped with a second nut 200 by second nut embedded clamping jaw 81, one side of first mould positioner 101 is equipped with a first limit rod 103, and one end of first limit rod 103 is equipped with a first limit head 104. Gas pipe busbar 209 is communicated with finger cylinder, push cylinder, ejection cylinder and clamping cylinder respectively. Second mould positioner 201 is clamped with mould, and push cylinder 70 is positioned to the corresponding position of mould with second nut by second ejector pin.

[0027] In order to facilitate the clamping and ejection of first nut, a through hole 632 is arranged at the center position of first limit sleeve 63, an opening slot 634 is arranged at the side wall of through hole 632, and the opening slot 634 is L-shaped structure. One end of through hole 632 is provided with a recess 631, and the top end of recess 631 is provided with an arc surface 633. The first nut embedded clamping jaw 51 abuts against the recess 631. The first limit sleeve 63 is provided with a base 635, the base 635 is provided with a connecting hole 637, and the bottom end is provided with a groove 636. The connecting hole 637 is fixedly connected with the middle plate insert embedded module 10. The first ejection mechanism includes an ejection cylinder 60, and the first ejection cylinder 60 is provided with a first ejector pin 62 at one end. The first ejector pin 62 is inserted into the through hole 632. The ejection cylinder 60 is fixedly connected with the middle plate insert embedded module 10 through a first ejection support 61.

[0028] To facilitate the clamping and ejection of the second nut, a second ejector pin 72 is provided at one end of the push cylinder 70, and is fixedly connected to the moving mold embedding and extraction module 20 via a second ejection bracket 71. A clamping cylinder 80 is fixedly connected to the side of the moving mold embedding and extraction module 20 away from the second ejection bracket 71. A second nut embedding gripper 81 is provided at one end of the clamping cylinder 80. The second ejector pin 72 passes through a second limiting sleeve 73, which has a slot 730. The second nut embedding gripper 81 abuts against the slot 730. A protrusion 202 is provided at one end of the second mold locator 201, and a second limiting rod 205 is provided on one side of the second mold locator 201. The side wall of the protrusion 202 has circumferentially distributed second elastic locking points 203. A second limiting head 206 is provided at one end of the second limiting rod 205. The limiting rod limits the mold locator.

[0029] The robot interface is fixedly connected to the robot side posture connection module. As the robot moves, the first nut pick-up gripper grabs the first nut, and the second nut pick-up gripper grabs the second nut, embedding the nuts into the injection mold respectively. After the mold positioners on both sides are inserted into the mold for positioning, the grippers are released, the ejection mechanism pushes the nuts into place, the fixture is removed from the injection mold, and the first nut and the second nut are positioned into the mold in sequence. The injection molding machine closes the mold to produce the injection molded product.

[0030] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. An injection molding insert fixture for multi-size nuts, characterized in that: The system includes a parallel-arranged middle plate insert embedding module (10) and a moving mold embedding and extraction module (20). One end of the middle plate insert embedding module (10) is fixedly connected to a support plate (30) and one end of the moving mold embedding and extraction module (20), and an air pipe manifold (209) is provided between them. A robot side posture connection module (40) is provided at the middle position of the support plate (30). Each of the four corners of the middle plate insert embedding module (10) is provided with a first mold locator (101), and multiple first nut embedding grippers (51) are movably connected in the middle through a finger cylinder (50). The first nut embedding grippers (51) clamp a first nut (100). The first nut (100) is set at the center of a first limiting sleeve (63). One end of the cylinder (63) is provided with a first ejection mechanism and is fixedly connected to the middle plate insert embedding module (10). The outer wall of the first mold locator (101) is provided with evenly distributed first elastic locking points (102). The four corners of the moving mold embedding and taking out module (20) are respectively fixedly connected to the second mold locator (201) through the fixing parts (204), and the middle is fixedly connected to the second limiting sleeve (73). One end of the second limiting sleeve (73) is provided with a push cylinder (70), and the other end is clamped with the second nut (200) through the second nut embedding claw (81). One side of the first mold locator (101) is provided with a first limiting rod (103), and one end of the first limiting rod (103) is provided with a first limiting head (104).

2. The injection molding embedding fixture for multi-size nuts according to claim 1, characterized in that, The first limiting sleeve (63) has a through hole (632) at its center, a groove (631) at one end of the through hole (632), an arc surface (633) at the top of the groove (631), and the first nut pick-up claw (51) abuts against the groove (631).

3. The injection molding embedding fixture for multi-size nuts according to claim 2, characterized in that, The through hole (632) has an opening slit (634) on its side wall, and the opening slit (634) has an L-shaped structure.

4. The injection molding embedding fixture for multi-size nuts according to claim 2, characterized in that, The first limiting sleeve (63) is provided with a base (635), the base (635) is provided with a connecting hole (637), and a groove (636) is provided at the bottom end. The connecting hole (637) is fixedly connected to the middle plate insert embedded module (10).

5. The injection molding embedding fixture for multi-size nuts according to claim 2, characterized in that, The first ejection mechanism includes an ejection cylinder (60), and a first ejector pin (62) is provided at one end of the ejection cylinder (60). The first ejector pin (62) is inserted into the through hole (632). The ejection cylinder (60) and the middle plate insert embedding module (10) are fixedly connected by a first ejection bracket (61).

6. The injection molding embedding fixture for multi-size nuts according to claim 2, characterized in that, The push cylinder (70) is provided with a second ejector pin (72) at one end, and is fixedly connected to the moving mold embedding and taking out module (20) through a second ejector bracket (71).

7. The injection molding embedding fixture for multi-size nuts according to claim 6, characterized in that, The moving mold embedding and extraction module (20) is fixedly connected to a clamping cylinder (80) on the side away from the second ejection bracket (71). A second nut embedding claw (81) is provided at one end of the clamping cylinder (80). The second ejector pin (72) passes through the second limiting sleeve (73). The second limiting sleeve (73) is provided with a groove (730). The second nut embedding claw (81) abuts against the groove (730).

8. The injection molding embedding fixture for multi-size nuts according to claim 1, characterized in that, The robot side posture connection module (40) is provided with a flange (41), which is connected to the robot.

9. The injection molding embedding fixture for multi-size nuts according to claim 1, characterized in that, The second mold locator (201) has a protrusion (202) at one end, and the side wall of the protrusion (202) has a second elastic locking point (203) evenly distributed around the circumference.

10. The injection molding embedding fixture for multi-size nuts according to claim 9, characterized in that, The second mold locator (201) is provided with a second limiting rod (205) on one side, and a second limiting head (206) is provided at one end of the second limiting rod (205).