Embedded in the mold automatic pre-burying nut integrated machine

Abstract

This utility model discloses an integrated machine for automatic pre-embedding of nuts in an embedded mold, comprising a frame, a vibratory feeder, and a material conveying track. A first mounting plate is located at the upper center of the frame, and a material feeding and dispensing mechanism is mounted on the first mounting plate. A second mounting plate is located at the upper front of the frame, and a lifting mechanism is mounted on the second mounting plate. An upper mold is fixedly connected to the lifting end of the lifting mechanism, and a forming block is located below the upper mold. An injection hole is located on the side of the upper mold. An outlet hole is located below the forming block. A moving mechanism is mounted on the frame. A lower mold is fixedly connected to the moving end of the moving mechanism, and a forming groove is located on the lower mold. Multiple positioning posts are located within the forming groove. Multiple positioning mechanisms are located on the side of the moving mechanism on the frame. This utility model achieves fully automatic nut feeding and pre-embedding operations, and completes the nut pre-embedding process before injection molding, improving production efficiency.

Description

Technical Field

[0001] This utility model relates to an integrated machine, specifically an integrated machine for automatic pre-embedded nuts in an embedded mold, belonging to the technical field of nut pre-embedding devices. Background Technology

[0002] Pre-embedded nuts during injection molding are used to compensate for the inherent strength limitations of plastics and meet the requirements of high-strength connections. Plastic threads are prone to stripping and cracking due to material properties, and thermal expansion and contraction can easily lead to loosening. Metal nuts, however, can overcome these problems. To address this, the industry has developed various pre-embedded nut devices. For example, Chinese utility model patent CN215040392U discloses a pre-embedded nut hot-pressing device with easily replaceable riveting components. Specifically, it discloses a frame, worktable, and hot-pressing riveting mechanism. The hot-pressing riveting mechanism includes a pressing mechanism and a product positioning mechanism. The pressing mechanism includes a column, top plate, pressing cylinder, and a detachable pressing component. The detachable pressing component includes a guide plate, slot plate, insert plate, and pressure head assembly. When using this type of device to pre-embed nuts via hot pressing, the nut installation must be performed after the product is molded, which adds an extra processing step. Furthermore, if temperature control is not precise enough during hot pressing, it may affect the plastic components, posing a risk of cracking. Utility Model Content

[0003] The purpose of this invention is to provide an integrated machine for automatic pre-embedding of nuts within an embedded mold. This invention achieves fully automatic nut feeding and pre-embedding operations, and completes the nut pre-embedding process before injection molding, thereby improving production efficiency.

[0004] The technical solution of this utility model: an integrated machine for automatic pre-embedded nuts in an embedded mold, comprising a frame, a vibratory feeder at the front end of the frame, and multiple material conveying tracks connected to the discharge end of the vibratory feeder; a first mounting plate at the middle of the upper end of the frame, with a material picking and placing mechanism connected to the material conveying tracks; a second mounting plate at the upper front end of the frame, with a lifting mechanism fixedly connected to the lifting end of the lifting mechanism to an upper mold, and a forming block below the upper mold; an injection hole on the side of the upper mold; an outlet hole below the forming block, communicating with the injection hole; a moving mechanism on the frame, moving below the material picking and placing mechanism and the upper mold; a lower mold fixedly connected to the moving end of the moving mechanism, the lower mold having a forming groove that cooperates with the forming block; multiple positioning posts within the forming groove; and multiple positioning mechanisms located on the side of the moving mechanism on the frame.

[0005] The aforementioned integrated embedded in-mold automatic pre-embedded nut machine includes a material handling mechanism comprising a first cylinder disposed on the rear side of a first mounting plate, a square groove disposed on the first mounting plate, and a first guide rail symmetrically disposed laterally on the front side of the first mounting plate; a plurality of first sliders are slidably connected to the first guide rail, and a first mounting seat is connected to the first slider; a first connecting block is provided at the output end of the first cylinder, and the first connecting block passes through the square groove and is fixedly connected to the first mounting seat; a second guide rail is vertically symmetrically disposed on the first mounting seat, and a plurality of second sliders are slidably connected to the second guide rail, and a movable seat is connected to the outer side of the second slider; a first motor is provided at the upper end of the first mounting seat, and the output end of the first motor is downward and connected to a first screw; a first nut block is provided on the movable seat, and the first nut block cooperates with the first screw; a clamping cylinder is symmetrically disposed at the lower end of the movable seat, and a clamping arm is provided at the clamping end of the clamping cylinder.

[0006] The aforementioned integrated machine for automatic pre-embedded nuts in embedded molds includes a lifting mechanism comprising a second cylinder mounted on a second mounting plate, the extended end of the second cylinder pointing downwards and passing through the second mounting plate to be fixedly connected to the upper mold; a plurality of first guide rods are provided above the upper mold; a plurality of sleeves are provided on the second mounting plate, and the sleeves are slidably connected to the first guide rods.

[0007] The aforementioned integrated machine for automatic pre-embedded nuts in embedded molds includes a moving mechanism comprising a third guide rail symmetrically arranged on a frame, with multiple third sliders slidably connected to the third guide rails and the third sliders fixedly connected to the lower mold; synchronous pulleys are respectively provided at the front and rear ends of the third guide rails, and a synchronous belt is connected between the synchronous pulleys; a second connecting block is provided below the lower mold, and the second connecting block is fixedly connected to one side of the synchronous belt; a second motor is provided inside the frame, and the output end of the second motor is fixedly connected to one side of the synchronous pulley.

[0008] The aforementioned integrated embedded mold automatic pre-embedded nut machine includes a positioning mechanism comprising multiple second mounting seats disposed on the side of the moving mechanism. A fourth guide rail is mounted on each second mounting seat, and a fourth slider is slidably connected to the fourth guide rail. An extension block is fixedly connected above the fourth slider. A third motor is mounted on each second mounting seat, and a second screw is connected to the output end of the third motor. A second nut block is located at the rear end of the extension block, and the second nut block cooperates with the second screw. Mating blocks are respectively provided on both sides of the lower mold, and the mating blocks cooperate with the extension blocks.

[0009] In the aforementioned integrated machine for automatic pre-embedded nuts in the embedded mold, the outer end of the protruding block is triangular; the mating block is provided with a V-shaped groove, which mates with the outer end of the protruding block.

[0010] In the aforementioned integrated machine for automatic pre-embedded nuts in the embedded mold, multiple second guide rods are provided above the lower mold; multiple guide grooves are provided below the upper mold, and the guide grooves cooperate with the second guide rods.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. In this utility model, the nuts to be embedded are systematically conveyed to the feeding track by a vibratory feeder. Then, a pick-and-place mechanism removes the nuts from the feeding track. After the moving mechanism moves the lower mold below the pick-and-place mechanism and the positioning mechanism determines its position, the pick-and-place mechanism places the nuts on the positioning pins. The positioning pins fix the nuts and prevent molten adhesive from flowing into the nuts and causing blockage during injection molding. Next, the moving mechanism moves the lower mold below the upper mold, and the positioning mechanism repositions the lower mold to ensure it is vertically aligned with the upper mold. Then, the lifting mechanism lowers the upper mold and inserts the molding block into the molding groove. Molten adhesive is injected through an external pipe from the injection hole and flows into the molding groove from the outlet hole for injection molding. After injection molding is complete, the lifting mechanism raises the upper mold, and the product is removed from the molding groove.

[0013] 2. In this utility model, the material handling mechanism drives the first connecting block to move via the extension and retraction of the first cylinder. The first connecting block causes the first mounting seat to move along the first guide rail via the first slider, thereby controlling the lateral movement of the clamping arm. The first motor drives the first screw to rotate, and under the constraint of the second slider and the second guide rail, the first nut block on the moving seat moves along the guide of the first screw, thereby controlling the vertical movement of the clamping arm. By controlling the movement of the clamping arm in the lateral and vertical directions through the material handling mechanism, and controlling the vertical movement of the lower mold through the moving mechanism, the nut block can be accurately placed on the positioning post.

[0014] 3. In this utility model, the moving mechanism uses a motor to rotate one side of the synchronous pulley, thereby causing the synchronous belt between the synchronous pulleys to rotate. Then, the lower mold is connected to the synchronous belt through the second connecting block, so that the rotation of the synchronous belt can drive the lower mold to move. The third slider and the third guide rail prevent the lower mold from shifting.

[0015] 4. In this utility model, after the lower die moves to the material handling mechanism and below the upper die, it needs to be positioned to ensure that the material handling mechanism can accurately place the nut on the positioning post and that misalignment does not occur when the upper and lower dies coincide. The positioning mechanism drives the second screw to rotate via the third motor, and under the constraint of the fourth slider and the fourth guide rail, the second nut block on the protruding block moves along the guide of the second screw. When the lower die moves to the corresponding position, the protruding block at that position extends, and its outer end inserts into the groove of the mating block, thereby ensuring the correct working position so that the corresponding mechanism can continue to operate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a top view of the structure of this utility model;

[0018] Figure 3 This is a structural diagram of the frame;

[0019] Figure 4 This is a schematic diagram of the structure on the other side of the frame;

[0020] Figure 5 This is a structural diagram of the upper and lower molds.

[0021] The labels in the attached diagram are as follows: 1-Frame, 2-Vibrating plate, 3-Material conveying track, 4-First mounting plate, 5-Material handling mechanism, 6-Second mounting plate, 7-Lifting mechanism, 8-Upper mold, 9-Molding block, 10-Injection hole, 11-Outlet hole, 12-Moving mechanism, 13-Lower mold, 14-Molding groove, 15-Positioning pin, 16-Positioning mechanism, 17-Second guide rod, 18-Guide groove, 70-Second cylinder, 71-First guide rod, 72-Sleeve, 80-Third guide rail, 81-Third slider, 82-Synchronous pulley, 83-Synchronous belt, 84-Second connecting block, 85-Second... Motor, 90-Second mounting base, 91-Fourth guide rail, 92-Fourth slider, 93-Extending block, 94-Third motor, 95-Second screw, 96-Second nut block, 97-Matching block, 98-Groove, 100-First cylinder, 101-Square groove, 102-First guide rail, 103-First slider, 104-First mounting base, 105-First connecting block, 106-Second guide rail, 107-Second slider, 108-Moving base, 109-First motor, 110-First screw, 111-First nut block, 112-Clamping cylinder, 113-Clamping arm. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0023] Example: An integrated machine for automatic pre-embedded nuts in an embedded mold, configured as follows: Figure 1-5 As shown, the device includes a frame 1 made of high-strength aluminum alloy. A vibratory feeder 2 is located at the front end of the frame 1. This vibratory feeder uses high-frequency vibration to arrange and transport the nuts to be embedded in an orderly manner. The discharge end of the vibratory feeder 2 is connected to multiple conveying tracks 3. The conveying tracks 3 are designed with grooves according to the nut size, allowing for precise directional transport of the nuts. Figure 2 As shown, a first mounting plate 4 is provided at the middle of the upper end of the frame 1, and a material picking and placing mechanism 5 is provided on the first mounting plate 4. The material picking and placing mechanism 5 is connected to the material conveying track 3; a second mounting plate 6 is provided at the upper front end of the frame 1, and a lifting mechanism 7 is provided on the second mounting plate 6. The lifting end of the lifting mechanism 7 is fixedly connected to the upper mold 8, as shown. Figure 5 As shown, a molding block 9 is provided below the upper mold 8; an injection hole 10 is provided on the side of the upper mold 8; an outlet hole 11 is provided below the molding block 9, and the outlet hole 11 is connected to the injection hole 10; a moving mechanism 12 is provided on the frame 1, which moves below the material handling mechanism 5 and the upper mold 8; a lower mold 13 is fixedly connected to the moving end of the moving mechanism 12, and a molding groove 14 is provided on the lower mold 13, which cooperates with the molding block 9; multiple positioning pins 15 are provided in the molding groove 14, the diameter of which matches the inner hole of the nut, for precise positioning of the nut. Furthermore, to prevent axial displacement of the nut under injection pressure, especially under the impact force of hot melt adhesive flow, elastic buckles or annular elastic protrusions are added to the top of the positioning pins to enhance the axial limit of the nut and avoid deviation of the pre-embedded position. Multiple positioning mechanisms 16 are provided on the side of the moving mechanism 12 on the frame 1. The pre-embedded nuts are systematically conveyed to the feeding track 3 by the vibratory feeder 2. Then, the nuts are removed from the feeding track 3 by the pick-and-place mechanism 5. After the moving mechanism 12 moves the lower mold 13 below the pick-and-place mechanism 5 and the positioning mechanism 16 determines its position, the pick-and-place mechanism 5 places the nut on the positioning post 15. The diameter of the positioning post 15 is 0.1–0.2 mm smaller than the inner hole of the nut to prevent excessive gaps from causing the nut to wobble, and excessive gaps from making it difficult for the pick-and-place mechanism to place the nut. The positioning post 15 fixes the nut and prevents molten adhesive from flowing into the nut and causing blockage during injection molding. Next, the moving mechanism 12 moves the lower mold 13 below the upper mold 8, and the positioning mechanism 16 repositions the lower mold 13 to ensure it is vertically aligned with the upper mold 8. Then, the lifting mechanism 7 lowers the upper mold 8 and inserts the molding block 9 into the molding groove 14. Molten adhesive is injected through the injection hole 10 and flows into the molding groove 14 through the outlet hole 11 for injection molding. After injection molding is completed, the lifting mechanism 7 raises the upper mold 8, allowing the product to be removed from the molding groove 14. For example... Figure 3 and Figure 4As shown, the material handling mechanism 5 includes a first cylinder 100 disposed on the rear side of the first mounting plate 4, a square groove 101 disposed on the first mounting plate 4, and first guide rails 102 symmetrically arranged vertically along the direction of the first mounting plate 4; a plurality of first sliders 103 are slidably connected to the first guide rails 102, and a first mounting base 104 is connected to the first sliders 103; a first connecting block 105 is provided at the output end of the first cylinder 100, and the first connecting block 105 passes through the square groove 101 and is fixedly connected to the first mounting base 104; a second guide rail 106 is vertically symmetrically arranged on the first mounting base 104, and the first cylinder 100... Multiple second sliders 107 are slidably connected to the two guide rails 106, and a movable seat 108 is connected to the outer side of the second sliders 107; a first motor 109 is provided at the upper end of the first mounting seat 104, and the output end of the first motor 109 faces downward and is connected to a first screw 110; a first nut block 111 is provided on the movable seat 108, and the first nut block 111 cooperates with the first screw 110; a clamping cylinder 112 is symmetrically arranged at the lower end of the movable seat 108, and the clamping cylinder 112 adopts a standard double-acting gripper cylinder of model HFZ10, and the clamping end of the clamping cylinder 112 is provided with a clamping arm 113. The material handling mechanism 5 drives the first connecting block 105 to move via the extension and retraction of the first cylinder 100. The first connecting block 105 causes the first mounting base 104 to move on the first guide rail 102 via the first slider 103, thereby controlling the lateral movement of the clamping arm 113. The first motor 109 drives the first screw 110 to rotate, and under the constraint of the second slider 107 and the second guide rail 106, the first nut block 111 on the moving base 108 moves along the guide of the first screw 110, thereby controlling the vertical movement of the clamping arm 113. By controlling the lateral and vertical movement of the clamping arm 113 through the material handling mechanism 5, and controlling the vertical movement of the lower mold 13 through the moving mechanism 12, the nut block can be accurately placed on the positioning post 15. Figure 3 and Figure 4 As shown, the lifting mechanism 7 includes a second cylinder 70 mounted on the second mounting plate 6. The extended end of the second cylinder 70 points downward and passes through the second mounting plate 6, being fixedly connected to the upper mold 8 to provide lifting power for the upper mold 8. Multiple first guide rods 71 ​​are provided above the upper mold 8. Multiple sleeves 72 are provided on the second mounting plate 6, and the sleeves 72 are slidably connected to the first guide rods 71 ​​to ensure the verticality of the upper mold 8 during lifting. Figure 3 and Figure 4As shown, the moving mechanism 12 includes third guide rails 80 symmetrically arranged on the frame 1. Multiple third sliders 81 are slidably connected to the third guide rails 80, and the third sliders 81 are fixedly connected to the lower mold 13. Synchronous pulleys 82 are respectively provided at the front and rear ends of the third guide rails 80, and a synchronous belt 83 is connected between the synchronous pulleys 82. A second connecting block 84 is provided below the lower mold 13, and the second connecting block 84 is fixedly connected to one side of the synchronous belt 83. A second motor 85 is provided inside the frame 1, and the output end of the second motor 85 is fixedly connected to one side of the synchronous pulley 82. The moving mechanism 12 causes one side of the synchronous pulley 82 to rotate via the motor, thereby causing the synchronous belt 83 between the synchronous pulleys 82 to rotate. Then, the lower mold 13 is connected to the synchronous belt 83 via the second connecting block 84, so that the rotation of the synchronous belt 83 can drive the lower mold 13 to move. The third sliders 81 and the third guide rails 80 prevent the lower mold 13 from shifting during movement. Figure 3 and Figure 4 As shown, the positioning mechanism 16 includes multiple second mounting seats 90 disposed on the side of the moving mechanism 12. A fourth guide rail 91 is provided on each second mounting seat 90, and a fourth slider 92 is slidably connected to the fourth guide rail 91. An extension block 93 is fixedly connected above the fourth slider 92. A third motor 94 is provided on each second mounting seat 90, and a second screw 95 is connected to the output end of the third motor 94. A second nut block 96 is provided at the rear end of the extension block 93, and the second nut block 96 cooperates with the second screw 95. Matching blocks 97 are provided on both sides of the lower mold 13, and the matching blocks 97 cooperate with the extension block 93. The outer end of the extension block 93 is triangular. A V-shaped groove 98 is provided on the matching block 97, and the groove 98 cooperates with the outer end of the extension block 93. The V-shaped structure has an automatic centering function, which can compensate for minor displacement errors. After the lower mold 13 moves to below the material handling mechanism 5 and the upper mold 8, it needs to be positioned to ensure that the material handling mechanism 5 can accurately place the nut on the positioning post 15 and that misalignment does not occur when the upper mold 8 and the lower mold 13 overlap. To prevent molten adhesive from overflowing from the gap between the molding block 9 and the molding groove 14, a high-temperature resistant sealing ring is provided on the upper edge of the molding block 9 to enhance the sealing performance during mold closing. The positioning mechanism 16 drives the second screw 95 to rotate via the third motor 94, and under the constraint of the fourth slider 92 and the fourth guide rail 91, the second nut block 96 on the protruding block 93 moves along the guide of the second screw 95. When the lower mold 13 moves to the corresponding position, the protruding block 93 at that position extends, and its outer end inserts into the groove 98 of the mating block 97, thereby ensuring the correct working position so that the corresponding mechanism can continue to operate. Figure 5 As shown, the lower mold 13 is provided with a plurality of second guide rods 17 above it; the upper mold 8 is provided with a plurality of guide grooves 18 below it. The guide grooves 18 cooperate with the second guide rods 17 and play a guiding role when the upper and lower molds 13 are closed, further ensuring the alignment accuracy of the forming block 9 and the forming groove 14.

[0024] Working principle:

[0025] The pre-embedded nuts are conveyed in an orderly manner to the feeding track 3 via the vibratory feeder 2, and the pick-and-place mechanism 5 picks up the nuts at the end of the feeding track 3. After the moving mechanism 12 moves the lower mold 13 below the pick-and-place mechanism 5, the positioning mechanism 16 positions the lower mold 13 to ensure accurate positioning. Subsequently, the pick-and-place mechanism 5 places the nuts on the positioning pins 15 in the molding groove 14. Then, the moving mechanism 12 moves the lower mold 13 below the upper mold 8, and the positioning mechanism 16 positions the lower mold 13 again to ensure that it is vertically aligned with the upper mold 8. Afterward, the lifting mechanism 7 drives the upper mold 8 to descend, allowing the molding block 9 to be inserted into the molding groove 14. At this time, the external pipe injects molten adhesive from the injection hole 10, which flows into the molding groove 14 through the outlet hole 11 for injection molding. After injection molding is completed, the lifting mechanism 7 drives the upper mold 8 to rise, and finally the product is removed from the molding groove 14.

Claims

1. An embedded automatic in-mold pre-buried nut all-in-one machine, comprising a frame body (1), a vibrating disc (2) is arranged at the front end of the frame body (1), and a plurality of material conveying tracks (3) are connected to the discharge end of the vibrating disc (2); characterized in that: The frame (1) has a first mounting plate (4) at the middle of its upper end, and a material picking and placing mechanism (5) is provided on the first mounting plate (4). The material picking and placing mechanism (5) is connected to the material conveying track (3). The frame (1) has a second mounting plate (6) at the upper front end, and a lifting mechanism (7) is provided on the second mounting plate (6). The lifting end of the lifting mechanism (7) is fixedly connected to an upper mold (8), and a molding block (9) is provided below the upper mold (8). The upper mold (8) has an injection hole (10) on its side. The molding block (9) has an outlet hole (11) below it, through which the material flows out. The hole (11) is connected to the injection hole (10); the frame (1) is provided with a moving mechanism (12), which moves below the material handling mechanism (5) and the upper mold (8); the moving end of the moving mechanism (12) is fixedly connected to the lower mold (13), which has a forming groove (14) and cooperates with the forming block (9); the forming groove (14) is provided with multiple positioning posts (15); the frame (1) is provided with multiple positioning mechanisms (16) located on the side of the moving mechanism (12).

2. The embedded automatic in-mold pre-nut integrator according to claim 1, characterized in that: The material handling mechanism (5) includes a first cylinder (100) located on the rear side of the first mounting plate (4), a square groove (101) located on the first mounting plate (4), and a first guide rail (102) symmetrically arranged on the front side of the first mounting plate (4). Multiple first sliders (103) are slidably connected to the first guide rail (102), and a first mounting base (104) is connected to each first slider (103). A first connecting block (105) is provided at the output end of the first cylinder (100), and the first connecting block (105) passes through the square groove (101) and is fixedly connected to the first mounting base (104). The first mounting base (104) is vertically symmetrically arranged on... A second guide rail (106) is provided, and multiple second sliders (107) are slidably connected on the second guide rail (106). A movable seat (108) is connected to the outside of the second slider (107). A first motor (109) is provided at the upper end of the first mounting seat (104). The output end of the first motor (109) is downward and connected to a first screw (110). A first nut block (111) is provided on the movable seat (108). The first nut block (111) cooperates with the first screw (110). A clamping cylinder (112) is symmetrically provided at the lower end of the movable seat (108). The clamping end of the clamping cylinder (112) is provided with a clamping arm (113).

3. The embedded automatic pre-buried nut in-mold machine according to claim 1, characterized in that: The lifting mechanism (7) includes a second cylinder (70) mounted on a second mounting plate (6). The extended end of the second cylinder (70) is downward and passes through the second mounting plate (6) and is fixedly connected to the upper mold (8). A plurality of first guide rods (71) are provided above the upper mold (8). A plurality of sleeves (72) are provided on the second mounting plate (6), and the sleeves (72) are slidably connected to the first guide rods (71).

4. The integrated machine for automatic pre-embedded nuts in the embedded mold according to claim 1, characterized in that: The moving mechanism (12) includes a third guide rail (80) symmetrically arranged on the frame (1), a plurality of third sliders (81) are slidably connected on the third guide rail (80), and the third sliders (81) are fixedly connected to the lower mold (13); the front and rear ends of the third guide rail (80) are respectively provided with synchronous wheels (82), and the synchronous wheels (82) are connected with a synchronous belt (83); a second connecting block (84) is provided below the lower mold (13), and the second connecting block (84) is fixedly connected to one side of the synchronous belt (83); a second motor (85) is provided inside the frame (1), and the output end of the second motor (85) is fixedly connected to one side of the synchronous wheel (82).

5. The integrated machine for automatic pre-embedded nuts in the embedded mold according to claim 1, characterized in that: The positioning mechanism (16) includes multiple second mounting seats (90) disposed on the side of the moving mechanism (12). A fourth guide rail (91) is provided on the second mounting seat (90). A fourth slider (92) is slidably connected on the fourth guide rail (91). An extension block (93) is fixedly connected above the fourth slider (92). A third motor (94) is provided on the second mounting seat (90). A second screw (95) is connected to the output end of the third motor (94). A second nut block (96) is provided at the rear end of the extension block (93). The second nut block (96) cooperates with the second screw (95). A mating block (97) is provided on both sides of the lower mold (13). The mating block (97) cooperates with the extension block (93).

6. The integrated machine for automatic pre-embedded nuts in the embedded mold according to claim 5, characterized in that: The outer end of the protruding block (93) is triangular; the mating block (97) is provided with a V-shaped groove (98), which mates with the outer end of the protruding block (93).

7. The integrated machine for automatic pre-embedded nuts in the embedded mold according to claim 1, characterized in that: The lower mold (13) is provided with a plurality of second guide rods (17) above it; the upper mold (8) is provided with a plurality of guide grooves (18) below it, and the guide grooves (18) cooperate with the second guide rods (17).

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