An automated nail-forming device

Abstract

The application discloses an automatic nail embedding forming device and relates to the technical field of nail embedding forming, which comprises the following parts: a cylinder part is fixedly connected to the outside of a mold, the inner cavity of the cylinder part is coaxially connected with the expansion hole on the outside of the mold to form a cavity, a plugging ring part is coaxially and slidingly connected in the cavity and is sleeved with a nail rod, the sliding stroke of the plugging ring part has a closed position for plugging the annular clamping cavity between the nail rod and the shrinkage hole on the inside of the mold, a clamping part is movably arranged on the plugging ring part and is used for clamping the nail rod when the plugging ring part abuts against a nail cap, a pushing part is fixedly connected with the linear power end of a first driving part, the pushing part pushes the plugging ring part fixedly connected with the cylinder part in the axial direction, the plugging ring part is moved to the closed position after being sleeved on the nail rod and abutting against the nail cap, and the nail cap is arranged in the mold. The application can stably clamp the nail rod and has high nail embedding precision; the device is arranged on the back side of the mold and does not need to be frequently moved; and the positioning hole formed on the mold is a through hole formed by the shrinkage hole and the expansion hole, so that the device is convenient to clean.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of embedded forming, in particular to an automatic embedded forming device. BACKGROUND

[0002] In the manufacturing field of automobile parts, electronic and electrical components, smart home accessories, etc., it is often necessary to use embedded injection molding process to pre-fix metal nails, plastic nails and other inserts in the injection mold, so that the nails are integrally formed with the products to improve the connection strength, assembly convenience and structural stability of the products. In this process, the accurate positioning and reliable fixing of the nails in the mold directly determine the dimensional accuracy and performance of the final product, and is one of the key links of embedded injection molding.

[0003] In the existing mainstream embedded forming technology, a positioning hole matching the shape of the nail is pre-set on the inner side of the mold. The nail is first embedded in the inner positioning hole, so that part of the nail is embedded in the positioning hole and the other part is exposed outside the positioning hole in the mold cavity. After injection molding is completed, the part of the nail in the mold cavity is combined with the plastic matrix to form an integrated structure.

[0004] The above existing technology has the following deficiencies: first, the nail is placed in the positioning hole of the mold cavity and only relies on the pre-tightening force to maintain the position, which lacks stable positioning during the dynamic process of mold closing and injection molding, affecting the embedded nail precision; second, the embedded nail device cannot be placed in the inner side of the mold and needs to be frequently moved, and the mold opening space also needs to be increased to allow the embedded nail device to pass through, which occupies a large space; finally, the positioning hole on the inner side of the mold is usually a blind hole, and a small amount of molten plastic inevitably seeps into the positioning hole during injection molding, forming residual waste after cooling. Since the diameter of the positioning hole is small, it is difficult to clean up, and if it is not completely cleaned, it will cause difficulty in embedding the nail in the positioning hole and affect the embedded nail precision. SUMMARY

[0005] The purpose of the present application is to provide an automatic embedded forming device to solve the problems of lack of stable positioning of the nail during injection molding, frequent migration of the embedded nail device and large mold opening space occupied, and difficult cleaning of the positioning blind hole on the inner side of the mold cavity affecting the embedded nail precision in the above existing technology.

[0006] In order to achieve the above object, the present application provides the following technical scheme: An automatic nail embedding forming device is characterized by comprising: a barrel fixedly connected to the outside of a mold, the inner cavity of the barrel being coaxially connected to the expansion hole on the outside of the mold to form a cavity; a blocking ring coaxially slidingly connected in the cavity and sleeved with a nail rod, the sliding stroke of the blocking ring having a closed position for blocking the annular clamping cavity between the nail rod and the shrinkage hole on the inside of the mold; a clamping component movably arranged on the blocking ring for clamping the nail rod when the blocking ring abuts against a nail cap; and a pushing component fixedly connected with the linear power end of a first driving component, the pushing component pushing the blocking ring fixedly connected thereto in the axial direction of the barrel, the blocking ring moving to the closed position after being sleeved on the nail rod and abutting against the nail cap, so that the nail cap is placed inside the mold.

[0007] Further, a limiting column block is axially slidingly connected to the blocking ring, the limiting column block having a left limit position and a right limit position in the sliding stroke relative to the blocking ring, at least one positioning pin being radially and elastically slidingly connected to the limiting column block, the inner wall of the barrel having a positioning blind hole, when the blocking ring is located at the closed position and the limiting column block is located at the right limit position, the positioning pin is inserted into the positioning blind hole and the limiting column block abuts against the end of the nail rod, the positioning pin being fixedly connected with a wedge, when the blocking ring slides away from the closed position and the clamping component releases the nail rod, the blocking ring abuts against the wedge to make the positioning pin disengage from the positioning blind hole.

[0008] Further, at least one slot is formed in the blocking ring, a sliding rod fixedly connected to the limiting column block is located in the slot, the two ends of the sliding rod each having a limiting portion, when the left end of the sliding rod abuts against the blocking ring, the limiting column block is located at the right limit position, and when the right end of the sliding rod abuts against the blocking ring, the limiting column block is located at the left limit position.

[0009] Further, a guide blind hole is formed in the limiting column block, the positioning pin is slidingly connected in the guide blind hole, a second compression spring is arranged in the sliding groove, one end of the second compression spring abuts against the positioning pin, and the other end abuts against the hole bottom of the guide blind hole.

[0010] Further, a guide groove slidingly matched with the positioning pin is formed in the barrel, the positioning blind hole is located at the left end of the guide groove, and the depth of the positioning blind hole is greater than the depth of the guide groove.

[0011] Further, the clamping component comprises a plurality of clamping units arranged in an annular array, each clamping unit comprising a chuck and an elastic component, the chuck being slidingly connected to the blocking ring in the radial direction of the blocking ring, and the elastic component driving the chuck to slide towards the center of the blocking ring to abut against the circumferential side surface of the nail rod when the elastic component releases elastic force.

[0012] Furthermore, the elastic element includes an outer rod fixedly connected to the sealing ring, an inner rod fixedly connected to the clamp, and a first compression spring located inside the outer rod. The outer rod and the inner rod are slidably sleeved together along the axial direction. One end of the first compression spring abuts against the outer rod, and the other end abuts against the inner rod.

[0013] Furthermore, the inner side of the clamp is arc-shaped to match the circumferential surface of the nail bar.

[0014] Furthermore, a heat-resistant sealing ring is fixedly connected to the left end face of the sealing ring.

[0015] Furthermore, it also includes a vertically movable rack, in which several nails are arranged. The lower end of the rack has an opening facing to the right to avoid the sealing ring. The top of the sealing ring has a guide ramp to clear away other nails except the one above the bottom nail.

[0016] Compared with the prior art, the automated nail embedding and molding device provided by the present invention inserts nails from the outside of the mold under the advancement of the pusher, so that the nail head is placed in the cavity of the mold. The annular clamping cavity between the nail rod and the shrinkage cavity on the inside of the mold is closed by the sealing ring. During injection molding, the nail rod is stably clamped by the clamping component, resulting in high nail embedding accuracy. The device is set on the back side of the mold, eliminating the need for frequent relocation and additional opening space. The positioning hole on the mold is a through hole formed by the interconnected shrinkage cavity and the expansion cavity, which is easy to clean. Attached Figure Description

[0017] To provide a clearer description of the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the embodiments will be briefly introduced below.

[0018] Figure 1 A schematic diagram of the overall structure provided for the embodiment;

[0019] Figure 2 Right view of the overall structure provided for the embodiment;

[0020] Figure 3 A partial structural schematic diagram provided for an embodiment;

[0021] Figure 4 A partial structural breakdown diagram provided for an embodiment;

[0022] Figure 5 A schematic diagram of the nail structure provided for an embodiment;

[0023] Figure 6 for Figure 2 A structural cross-sectional view along line AA in the middle;

[0024] Figure 7 for Figure 2 A structural cross-sectional view along line BB in the middle;

[0025] Figure 8 This is a cross-sectional view of the structure of the clamping component when it clamps the nail rod, as provided in the embodiment.

[0026] Figure 9 This is a structural cross-sectional view from another perspective when the clamping component provided in the embodiment clamps the nail bar;

[0027] Figure 10 This is a structural cross-sectional view of the nail rod when it is removed from the material rack, as provided in the embodiment.

[0028] Figure 11 A cross-sectional view of the structure when the rack moves upward to avoid obstruction, provided in the embodiment;

[0029] Figure 12 This is a cross-sectional view of the structure of the sealing ring when it moves to the closed station, as provided in the embodiment.

[0030] Figure 13 This is a structural cross-sectional view from another perspective when the sealing ring component, provided in the embodiment, moves to the closed workstation;

[0031] Figure 14 This is a cross-sectional view of the structure of the sealing ring and clamping component when they are separated from the nail rod, as provided in the embodiment.

[0032] Figure 15 This is a structural cross-sectional view from another perspective when the sealing ring and clamping component are detached from the nail rod, as provided in the embodiment.

[0033] Figure 16 This is a structural cross-sectional view of the limiting column block when it is disengaged from the nail rod, as provided in the embodiment.

[0034] Figure 17 This is a structural cross-sectional view from another perspective when the limiting column block is disengaged from the nail rod, as provided in the embodiment.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Mold; 11. Hole enlargement; 12. Hole reduction; 2. Cylindrical component; 21. Guide groove; 22. Positioning blind hole; 3. Sealing ring; 31. Heat-resistant sealing ring; 32. Guide slope; 33. Groove; 4. Clamping component; 41. Chuck; 42. Outer rod; 43. Inner rod; 44. First compression spring; 5. Pushing component; 51. Connecting rod; 6. Limiting block; 61. Sliding rod; 62. First limiting part; 63. Second limiting part; 64. Positioning pin; 65. Wedge block; 66. Second compression spring; 7. First driving component; 8. Material rack; 81. Abutment part; 82. Opening; 9. Nail; 91. Nail head; 92. Nail rod; 10. Second driving component; 110. Product. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0038] Please see Figures 1-17 This invention provides an automated embedded nail molding device for pre-fixing nails 9 into a mold 1, with the nail shank 92 positioned in a positioning hole on the mold 1 and the nail head 91 protruding from the positioning hole and located within the cavity of the mold 1. After injection molding, the nail head 91 combines with the molten plastic matrix and cools and solidifies to form an integrated structure. The aforementioned nail 9 is an insert such as a metal nail or plastic nail that functions as a positioning, limiting, or connecting component. The nail 9 includes a connected nail head 91 and nail shank 92, with the diameter of the nail head 91 being larger than the diameter of the nail shank 92. The positioning holes on the mold 1 include an expanding hole 11 located on the outside of the mold 1 and a shrinking hole 12 located on the inside of the mold 1. The shrinking hole 12 is coaxial with and connected to the expanding hole 11. The diameter of the expanding hole 11 is larger than the diameter of the shrinking hole 12. The diameter of the shrinking hole 12 is adapted to the diameter of the nail head 91 so that the nail head 91 can pass through the shrinking hole 12. When the nail is embedded, the nail head 91 is inside the mold 1 and the nail rod 92 is inside the positioning hole. After the nail is embedded and formed, the nail head 91 is embedded inside the product 110 and the nail rod 92 protrudes outside the product 110.

[0039] The automated nail embedding device mainly includes a cylindrical component 2, a sealing ring component 3, a clamping component 4, a pushing component 5, and a first driving component 7. The left end of the cylindrical component 2 is installed on the outside of the mold 1 by welding or detachable connection, and the inner cavity of the cylindrical component 2 is coaxially connected with the expansion hole 11 on the outside of the mold 1 to form a cavity. One side of the cylindrical component 2 is designed with an opening to facilitate the placement of the nail 9 into the cavity. The sealing ring component 3 is coaxially slidably connected in the cavity and sleeved with the nail rod 92. The sealing ring component 3 has a closed position during its sliding stroke in the cavity. When in the closed position, the heat-resistant sealing ring 31 at the left end of the sealing ring component 3 seals the annular clamping cavity between the nail rod 92 and the shrinkage hole 12, preventing the molten plastic matrix from penetrating into the shrinkage hole 12. The clamping component 4 is movably mounted on the sealing ring component 3 and is used to clamp the nail rod 92 when the sealing ring component 3 abuts against the nail head 91. The left end of the pushing component 5 is fixedly connected to the sealing ring component 3 through multiple connecting rods 51, and the right end of the pushing component 5 is fixedly connected to the linear power end of the first driving component 7. The first driving component 7 adopts linear drive elements such as hydraulic cylinders, air cylinders, electric push rods, or linear motors.

[0040] The nail 9 is placed in the cavity and kept coaxial. The first driving member 7 drives the pushing member 5 to move the sealing ring 3 to the left along the axis of the cylinder 2, so that the sealing ring 3 is sleeved on the nail rod 92 and abuts against the nail head 91 (the right end face of the nail head 91), causing the nail head 91 to move together until the sealing ring 3 moves to the closed position. At this time, the nail head 91 is completely placed inside the cavity of the mold 1, and the junction of the nail head 91 and the nail rod 92 is flush with the inner wall of the mold 1. The left end of the heat-resistant sealing ring 31 is flush with the inner wall of the mold 1. Then the mold is closed and injection molding is performed. The molten plastic matrix wraps around the nail head 91 and is tightly bonded to the texture on the nail head 91. After cooling and solidification, the embedded nail product 110 is obtained.

[0041] The aforementioned clamping component 4 includes multiple clamping units arranged in a ring array. In this embodiment, two clamping units are preferably symmetrically distributed about the axis of the cylinder 2. Each clamping unit includes a clamp 41 and an elastic element. The inner side of the clamp 41 is arc-shaped to match the circumferential side of the nail rod 92. The clamp 41 is slidably connected to the sealing ring 3 along the radial direction. When the elastic element releases its elastic force, it drives the clamp 41 to slide towards the center of the sealing ring 3 to abut against the circumferential side of the nail rod 92, so that the clamps 41 of the two clamping units can elastically clamp the nail rod 92. In a preferred embodiment, the elastic element includes an outer rod 42 fixedly connected to the sealing ring 3, an inner rod 43 fixedly connected to the clamp 41, and a first compression spring 44 located inside the outer rod 42. The outer rod 42 and the inner rod 43 are slidably sleeved together along the axial direction. One end of the first compression spring 44 abuts against the outer rod 42, and the other end abuts against the inner rod 43.

[0042] The heat-resistant sealing ring 31 is bonded to the left end of the sealing ring 3. The heat-resistant sealing ring 31 is a consumable and needs to be inspected regularly. It can be made of perfluoroether rubber (temperature resistance up to 350℃), polyimide (temperature resistance up to 310℃), or para-polystyrene (temperature resistance up to 330℃).

[0043] In the above implementation scheme, the nail is inserted from the outside of the mold 1 under the push of the pusher 5, so that the nail head 91 is placed in the cavity of the mold 1. The annular clamping cavity between the nail rod 92 and the shrinkage hole 12 on the inner side of the mold 1 is closed by the sealing ring 3. During injection molding, the nail rod 92 is stably clamped by the clamping component 4, resulting in high nail embedding accuracy. The device is set on the back side of the mold 1, so there is no need to frequently move its position or increase the space of the opening 82. The positioning hole opened on the mold 1 is a through hole formed by the connected shrinkage hole 12 and the expansion hole 11, which is easy to clean.

[0044] The above-described implementation scheme provides a technical solution for inserting nails on the outside of mold 1, which has significant advantages in the installation of nails 9 and the injection molding process. It is necessary to wait for a certain period of time for the plastic matrix to completely solidify before the sealing ring 3 and clamping component 4 can be removed. This is to avoid the following situation: although the plastic matrix has solidified to a state that can stably support the nails 9, the friction between the sealing ring 3 and clamping component 4 and the nail rod 92 when they are removed may cause the connection between the nail anchor and the plastic matrix to loosen.

[0045] To shorten the waiting time for the plastic matrix to completely solidify, the present invention proposes the following further preferred embodiment: the inner cavity of the cylindrical component 2 has a limiting block 6, which is coaxially slidably connected to the sealing ring component 3. The limiting block 6 has a left limit position and a right limit position during its sliding stroke relative to the sealing ring component 3. Specifically, the sealing ring component 3 has at least one slot 33, and a sliding rod 61 located in the slot 33 is fixedly connected to the limiting block 6. The left end of the sliding rod 61 has a first limiting part 62, and the right end has a second limiting part 63. When the left end of the sliding rod 61 abuts against the sealing ring component 3, the limiting block 6 is in the right limit position, and when the right end of the sliding rod 61 abuts against the sealing ring component 3, the limiting block 6 is in the left limit position. At least one locating pin 64 is radially elastically slidably connected to the limiting block 6. A guide groove 21 is provided on the cylindrical component 2. The guide groove 21 and the locating pin 64 slide together to restrict the rotation of the limiting block 6. A ball bearing is added to the end of the locating pin 64. The ball bearing rolls into the guide groove 21 to reduce wear between the locating pin 64 and the guide groove 21. A positioning blind hole 22 is also provided on the inner wall of the cylindrical component 2. The positioning blind hole 22 is located at the left end of the guide groove 21 and its depth is greater than the depth of the guide groove 21.

[0046] The specific method of elastic sliding connection between the positioning pin 64 and the limiting block 6 is as follows: a guide blind hole is provided on the limiting block 6, the positioning pin 64 is slidably connected in the guide blind hole, and a second compression spring 66 is provided in the slide groove. One end of the second compression spring 66 abuts against the positioning pin 64, and the other end abuts against the bottom of the guide blind hole.

[0047] When the sealing ring 3 is in the closed position and the limiting block 6 is in the right extreme position, the second compression spring 66 causes the positioning pin 64 to insert into the positioning blind hole 22 and the limiting block 6 to abut against the end of the nail rod 92. Figure 13Thus, when the sealing ring 3 and clamping component 4 are removed from the nail rod 92, the limiting block 6 abuts against the right end of the nail rod 92, thereby offsetting the rightward force exerted on the nail rod 92 by the sealing ring 3 and clamping component 4 due to friction with the nail rod 92. Therefore, when the plastic matrix solidifies to a state that can stably support the nail 9 without external interference after injection molding, the sealing ring 3 and clamping component 4 can be removed from the nail rod 92, significantly shortening the time required for the plastic matrix and nail head 91 to be completely and securely connected and able to withstand tension. In addition, a wedge block 65 is fixedly connected to the positioning pin 64. When the sealing ring 3 slides away from the closed position and the clamping component 4 releases the nail rod 92, that is, after the sealing ring 3 and the clamping component 4 are completely removed from the nail rod 92, the sealing ring 3, which slides to the right relative to the limiting column block 6, abuts against the wedge block 65, thereby causing the positioning pin 64 to overcome the elastic force of the second compression spring 66 and exit the positioning blind hole 22. Figure 15 At this time, the limiting block 6 is at its left limit position relative to the sealing ring 3. The sealing ring 3 can drive the limiting block 6 to move to the right, causing the positioning pin 64 on the limiting block 6 to move away from the positioning blind hole 22 along the axial direction of the cylinder 2. Figures 16-17 .

[0048] The invention also includes a vertically movable material rack 8, which is driven by a second driving member 10. The second driving member 10 is a linear drive element such as a hydraulic cylinder, pneumatic cylinder, electric push rod, or linear motor. The material rack 8 corresponds to the opening of the cylindrical part 2. The material rack 8 is provided with a slot, and several nails 9 are arranged horizontally and placed in the slot. The lower end of the material rack 8 has an opening 82 facing to the right to avoid the sealing ring part 3. The left side of the lower end of the material rack 8 is an abutment part 81, and the top of the sealing ring part 3 is provided with a guide slope 32.

[0049] In this invention, the second driving member 10 drives the material rack 8 to move downwards, and the lower end of the material rack 8 enters the inner cavity through the opening on the cylinder 2, so that the lowermost nail 9 on the material rack 8 is located inside the inner cavity of the cylinder 2 and remains coaxial with the cylinder 2, as shown. Figures 6-7 The first driving component 7 drives the pushing component 5 to move the sealing ring component 3 and the clamping component 4 to the left along the axis of the cylinder 2. The nails 9 in the cavity remain stationary due to the obstruction of the abutment part 81 of the material rack 8. The sealing ring component 3 pushes open the other nails 9 in the material rack 8 except for the bottommost nail 9 through the guide inclined surface 32, and is fitted onto the nail rod 92 in the cavity until it abuts against the nail head 91. At this time, the clamping component 4 just disengages from the limiting block 6 and clamps the nail rod 92. The limiting block 6 is in the right extreme position and its left end abuts against the end of the nail rod 92. Figures 8-9 The first driving component 7 then drives the pushing component 5 to pull the sealing ring component 3 and the clamping component 4 to the right. On the one hand, the clamping component 4 drives the clamped nail 9 to move to the right through the opening 82 on the material rack 8 and out of the slot. On the other hand, the nail 9 will abut against the limiting column block 6 and move to the right together. Figure 10Once nail 9 is removed from the slot, the second drive component 10 drives the material rack 8 upward to move out of the opening of the cylinder 2, thus making room for the subsequent leftward movement of the sealing ring 3 and clamping component 4. Under the action of gravity, each nail 9 inside the material rack 8 automatically moves towards the bottom of the material rack 8. Figure 11 Then, the first driving component 7 drives the pushing component 5 to move the sealing ring 3 and the clamping component 4 to the left. On the one hand, the sealing ring 3 and the clamping component 4 drive the nail 9 in the cavity to move to the left. On the other hand, the sealing ring 3 pulls the limiting block 6 together by abutting the first limiting part 62 of the sliding rod 61 until the sealing ring 3 moves to the left to the closed position. At this time, the nail head 91 is completely placed inside the cavity of the mold 1. The junction of the nail head 91 and the nail rod 92, the inner wall of the mold 1, and the left end of the heat-resistant sealing ring 31 are all flush. The positioning pin 64 is inserted into the positioning blind hole 22 to lock the limiting block 6 in the state of abutting the end of the nail rod 92. Figures 12-13 Subsequently, the mold is closed and injection molding is performed. The molten plastic matrix tightly binds the nail head 91 to the texture on the nail head 91. When the injection molding is completed and the plastic matrix solidifies into a state that can stably support the nail 9 without external interference, the first driving component 7 drives the pusher to move to the right, pulling the sealing ring 3 and the clamping component 4 away from the nail rod 92. Since the limiting block 6 abuts against the right end of the nail rod 92, it can offset the rightward force on the nail rod 92 generated by the friction between the sealing ring 3 and the clamping component 4 and the nail rod 92. The sealing ring 3, which slides to the right relative to the limiting block 6, abuts against the wedge block 65, thereby causing the positioning pin 64 to overcome the elastic force of the second compression spring 66 and exit the positioning blind hole 22. At this time, the limiting block 6 is in the left limit position relative to the sealing ring 3. Figures 14-15 Next, the sealing ring 3 will move the limiting block 6 to the right, causing the limiting block 6 to disengage from the nail rod 92, preparing for the next nail insertion. Figures 16-17 .

[0050] The foregoing description of certain exemplary embodiments of the present invention should not be construed as limiting the scope of protection of the claims. Those skilled in the art will recognize that the described embodiments can be modified in other ways without departing from the spirit and scope of the invention.

Claims

1. An automated nail-embedding forming device, characterized in that, include: The cylindrical component is fixedly connected to the outside of the mold, and its inner cavity is coaxially connected with the expansion hole on the outside of the mold to form a cavity. A sealing ring component is coaxially slidably connected within the cavity and sleeved with a nail rod. During its sliding stroke, it has a closed position of the annular clamping cavity between the sealing nail rod and the inner shrinkage hole of the mold. A clamping component, which is movably mounted on the sealing ring, is used to clamp the nail rod when the sealing ring abuts against the nail head; The pusher is fixedly connected to the linear power end of the first drive member. The pusher pushes the sealing ring fixedly connected to it along the axial direction of the cylinder. After the sealing ring is sleeved on the nail rod and abuts against the nail head, it moves to the closed position so that the nail head is placed inside the mold. A limiting block is slidably connected to the sealing ring along the axial direction. The limiting block has a left limit position and a right limit position during its sliding stroke relative to the sealing ring. At least one positioning pin is elastically slidably connected to the limiting block along the radial direction. The inner wall of the cylinder has a positioning blind hole. When the sealing ring is in the closed position and the limiting block is in the right limit position, the positioning pin is inserted into the positioning blind hole and the limiting block abuts against the end of the nail rod. A wedge is fixedly connected to the positioning pin. When the sealing ring slides away from the closed position and the clamping component releases the nail rod, the sealing ring abuts against the wedge to disengage the positioning pin from the positioning blind hole. The sealing ring has at least one slot, and a sliding rod located in the slot is fixedly connected to the limiting post. Both ends of the sliding rod have limiting parts. When the left end of the sliding rod abuts against the sealing ring, the limiting post is in the right limit position, and when the right end of the sliding rod abuts against the sealing ring, the limiting post is in the left limit position.

2. The automated nail-embedding forming device according to claim 1, characterized in that, The limiting block has a guide blind hole, and the positioning pin is slidably connected in the guide blind hole. A second compression spring is provided in the groove. One end of the second compression spring abuts against the positioning pin, and the other end abuts against the bottom of the guide blind hole.

3. The automated nail-embedding forming device according to claim 1 or 2, characterized in that, The cylindrical component has a guide groove that slides with the positioning pin. The positioning blind hole is located at the left end of the guide groove and its depth is greater than the depth of the guide groove.

4. The automated nail-embedding forming device according to claim 1, characterized in that, The clamping component includes multiple clamping units arranged in a ring array. Each clamping unit includes a clamp and an elastic element. The clamp is slidably connected to the sealing ring along the radial direction of the sealing ring. When the elastic element releases its elastic force, it drives the clamp to slide toward the center of the sealing ring to abut against the circumferential side of the nail rod.

5. The automated nail-embedding forming device according to claim 4, characterized in that, The elastic element includes an outer rod fixedly connected to the sealing ring, an inner rod fixedly connected to the clamp, and a first compression spring located inside the outer rod. The outer rod and the inner rod are slidably sleeved together along the axial direction. One end of the first compression spring abuts against the outer rod, and the other end abuts against the inner rod.

6. The automated nail-embedding forming device according to claim 4, characterized in that, The inner side of the clamp is arc-shaped to match the circumferential surface of the nail bar.

7. The automated nail-embedding forming device according to claim 1, characterized in that, A heat-resistant sealing ring is fixedly connected to the left end face of the sealing ring.

8. The automated nail-embedding forming device according to claim 1, characterized in that, It also includes a vertically movable rack with several nails arranged inside. The lower end of the rack has an opening facing to the right to avoid the sealing ring. The top of the sealing ring has a guide ramp to clear away the other nails except the one above the bottom nail.

Images