Mechanical anchor cold heading apparatus

Abstract

The utility model relates to cold heading technical field, concretely is a kind of mechanical anchor bolt cold heading equipment.It includes frame, rotary die, intermittent blanking mechanism, automatic unloading mechanism, stamping device and elastic telescopic link assembly.Intermittent blanking mechanism includes circular shell, rotary feeding piece, feed hopper and first servo motor;Rotary die is provided with multiple forming grooves along annular array, and rotary die is rotatably installed on frame;Automatic unloading mechanism is installed on rotary die for automatically pushing out after stamping forming anchor bolt;Stamping device includes punch head and hydraulic cylinder;Elastic telescopic link assembly is installed on mounting bracket.This technical scheme uses the cooperation of intermittent blanking mechanism and rotary die, so that the feeding, stamping and unloading of mechanical anchor bolt and other processes can be carried out synchronously, realize continuous operation, avoid the cumbersome process of frequent manual addition of mechanical anchor bolt, improve overall work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cold heading technology, and in particular to a cold heading device for mechanical anchor bolts. Background Technology

[0002] Anchor bolts, also known as expansion bolts or anchors, are fasteners used to secure objects to materials such as concrete and masonry. They are widely used in construction and engineering to connect structural components, such as securing machinery, installing pipe supports, suspension systems, and various types of building components. Cold heading is a metal forming process widely used in the fastener manufacturing industry, including the manufacture of anchor bolts. The cold heading process involves applying high pressure to metal material at room temperature, forcing the metal to flow through a die and fill the die cavity, thereby forming the desired shape and size. Compared to heat treatment, cold heading maintains good mechanical properties of the material and can improve production efficiency and reduce material waste.

[0003] Traditional mechanical anchor production methods have many shortcomings: In the traditional production process, the mechanical anchor is placed into a stamping groove, and the mechanical anchor is stamped into shape by driving a stamping head. Then the formed mechanical anchor is pushed out of the stamping groove. The feeding, stamping and unloading processes are all carried out at the same station, which seriously affects work efficiency. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a cold heading device for mechanical anchor bolts.

[0005] The technical solution of this utility model is a cold heading equipment for mechanical anchor bolts, which includes a frame, a rotating mold, an intermittent feeding mechanism, an automatic unloading mechanism, a stamping device, and an elastic telescopic rod assembly.

[0006] The intermittent feeding mechanism includes a circular shell, a rotary feeder, a hopper, and a first servo motor. The circular shell is located on the upper part of the frame, and both ends of the bottom of the circular shell have through holes. The hopper is connected to the upper part of the circular shell. The rotary feeder is rotatably mounted inside the circular shell, and multiple dropping holes are arranged in a ring array along the outer periphery of the rotary feeder. The first servo motor is mounted on the circular shell, and its output shaft is connected to the rotating shaft of the rotary feeder. The rotating die has multiple forming grooves arranged in a ring array on its upper part. The rotating die is rotatably mounted on the frame, and a power component for driving the rotation of the rotating die is mounted on the frame. An automatic unloading mechanism is mounted on the rotating die for automatically ejecting the stamped anchor bolts. The stamping device includes a stamping head and a hydraulic cylinder. The hydraulic cylinder is mounted on the frame, and a mounting bracket is connected to the output shaft of the hydraulic cylinder. The stamping head is mounted on the mounting bracket. An elastic telescopic rod assembly is mounted on the mounting bracket.

[0007] Preferably, the automatic unloading mechanism includes a guide plate and multiple sets of ejection components. The multiple sets of ejection components correspond one-to-one with multiple forming grooves. Multiple spring mounting grooves are provided on the forming grooves, each corresponding to and connected to the multiple forming grooves. The ejection components include an ejector rod, a limiting ring, and a second spring. The ejector rod slides through the corresponding side spring mounting groove and its inner end is placed in the corresponding side forming groove. The limiting ring is set on the ejector rod. The second spring is sleeved on the ejector rod and located inside the spring mounting groove. A connecting block is connected to the outer end of the ejector rod. A vertical rod is connected to the connecting block. The guide plate is located on one side of the rotating mold. The main body of the guide plate is an open annular shape, and the end of the guide plate is inclined and connected to an inclined plate.

[0008] Preferably, a first outer cover is provided on the frame, the rotating mold is located inside the first outer cover, and the guide plate is connected to the first outer cover.

[0009] Preferably, a fixed frame is connected to the inner wall of the frame, a nozzle is installed on the fixed frame, the nozzle output end faces the edge of the rotating mold, and a solenoid valve is installed on the nozzle.

[0010] Preferably, the power assembly includes a second servo motor, a gear, and a gear ring. The second servo motor is mounted on the frame, the gear is mounted on the output shaft of the second servo motor, and the gear ring is mounted on the outer periphery of the rotating mold and meshes with the gear.

[0011] Preferably, a second outer cover is provided on the inner side of the frame, and the gear ring and gear are both located inside the second outer cover.

[0012] Preferably, the elastic telescopic rod assembly is located on one side of the overlapping area of ​​the rotating feeder and the rotating mold; the elastic telescopic rod assembly includes a push rod, a sleeve and a first spring, the sleeve is connected to the mounting bracket, one end of the push rod is slidably mounted on the inner side of the sleeve, and the first spring is located on the inner side of the sleeve.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] 1. The intermittent feeding mechanism and the rotating mold work together to enable the feeding, stamping and unloading of mechanical anchor bolts to be carried out simultaneously, achieving continuous operation and avoiding the tedious process of frequently adding mechanical anchor bolts manually, thus improving overall work efficiency.

[0015] 2. The rotating mold is equipped with multiple forming slots, forming multiple independent workstations. For example, feeding, unloading and stamping can be carried out simultaneously, which greatly shortens the production cycle. The rotating column and the rotating mold rotate intermittently. After the push rod is pulled out from the discharge hole, it can drive both to rotate immediately without waiting for the mechanical anchor bolt to discharge.

[0016] 3. The automatic unloading mechanism utilizes the coordinated action of components such as the guide plate, ejector rod, and second spring to automatically push out the formed mechanical anchor bolt after it leaves the stamping station, without the need for manual intervention. This not only improves unloading efficiency but also reduces labor costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a cross-sectional view of the circular shell in this utility model.

[0019] Figure 3 This is a schematic diagram of the rotating mold, the first outer cover, and the second outer cover in this utility model.

[0020] Figure 4 This is a cross-sectional view of the rotating mold in this utility model.

[0021] Figure 5 This is a schematic diagram of the elastic telescopic rod assembly in this utility model.

[0022] Figure 6 This is a schematic diagram of the guide plate in this utility model.

[0023] Reference numerals: 1. Frame; 2. Circular shell; 3. Rotating mold; 301. Forming groove; 302. Spring mounting groove; 4. Rotating feeder; 401. Drop hole; 5. Feed hopper; 6. PLC controller; 7. Punching head; 8. Push rod; 9. Sleeve; 10. Hydraulic cylinder; 11. Mounting bracket; 12. First outer cover; 13. Second outer cover; 14. Nozzle; 15. Solenoid valve; 16. Fixing bracket; 17. First servo motor; 18. Self-locking caster wheel; 19. Ejector rod; 20. Connecting block; 21. Vertical rod; 22. Second servo motor; 23. Gear; 24. Gear ring; 25. Guide plate; 26. First spring; 27. Limiting ring; 28. Second spring. Detailed Implementation

[0024] Example 1

[0025] like Figures 1-6 As shown in the figure, the mechanical anchor cold heading equipment proposed in this embodiment includes a frame 1, a rotating mold 3, an intermittent feeding mechanism, an automatic unloading mechanism, a stamping device, and an elastic telescopic rod assembly.

[0026] To facilitate equipment movement, multiple self-locking casters 18 can be installed at the bottom of the frame 1; a PLC controller 6 is installed on the frame 1; the intermittent feeding mechanism includes a circular housing 2, a rotary feeder 4, a feeding hopper 5, and a first servo motor 17. The circular housing 2 is located at the top of the frame 1, and both ends of the bottom of the circular housing 2 are provided with through holes. The feeding hopper 5 is connected to the top of the circular housing 2. The rotary feeder 4 is rotatably installed inside the circular housing 2. The rotary feeder 4 is a horizontal cylindrical shape. Multiple dropping holes 401 are arranged in a ring array along the outer periphery of the rotary feeder 4. The first servo motor 17 is installed on the circular housing 2 and its output shaft is connected to the rotating shaft of the rotary feeder 4.

[0027] The rotating mold 3 has multiple forming grooves 301 arranged in a ring array along its upper edge. The rotating mold 3 is rotatably mounted on the frame 1. The frame 1 is equipped with a power component for driving the rotating mold 3 to rotate. The power component includes a second servo motor 22, a gear 23, and a gear ring 24. The second servo motor 22 is mounted on the frame 1 and is located inside the first outer cover 12. The gear 23 is mounted on the output shaft of the second servo motor 22. The gear ring 24 is mounted on the outer periphery of the rotating mold 3 and meshes with the gear 23. The inner side of the frame 1 is provided with a second outer cover 13. The gear ring 24 and the gear 23 are both located inside the second outer cover 13. The second outer cover 13 encloses the gear ring 24 and the gear 23, which can prevent dust, debris, etc. from entering, reduce the wear of transmission components, extend their service life, and improve the stability of equipment operation.

[0028] An automatic unloading mechanism is installed on the rotating mold 3 to automatically eject the anchor bolts after stamping.

[0029] The stamping device includes a stamping head 7 and a hydraulic cylinder 10. The hydraulic cylinder 10 is mounted on the frame 1, and a mounting bracket 11 is connected to the output shaft of the hydraulic cylinder 10. The stamping head 7 is mounted on the mounting bracket 11.

[0030] The elastic telescopic rod assembly is installed on the mounting frame 11. The elastic telescopic rod assembly is located on one side of the overlapping area of ​​the rotating feeder 4 and the rotating mold 3. The elastic telescopic rod assembly includes a push rod 8, a sleeve 9 and a first spring 26. The sleeve 9 is connected to the mounting frame 11. One end of the push rod 8 is slidably installed inside the sleeve 9. The first spring 26 is located inside the sleeve 9.

[0031] The working principle of this technical solution is as follows:

[0032] The operation process of the intermittent feeding mechanism: The operator puts multiple mechanical anchors into the feeding hopper 5 in sequence. Only one mechanical anchor is allowed to pass through the bottom of the feeding hopper 5. The first servo motor 17 drives the rotating feeder 4 to rotate. Multiple dropping holes 401 are distributed in a ring array on the outer periphery of the rotating feeder 4. As the rotating feeder 4 rotates intermittently, the rotation angle is N1 each time, N1 = 360 degrees / number of dropping holes 401. The mechanical anchors at the bottom of the feeding hopper 5 will fall into the dropping holes 401 in sequence. When the dropping hole 401 rotates to the perforation position at the bottom of the circular shell 2, it is ready for the subsequent stamping process.

[0033] The operation process of the rotating mold 3: The rotating mold 3 has multiple forming grooves 301 arranged in a ring array on its upper edge, and it rotates through a power component; the second servo motor 22 drives the gear 23 to rotate, and the gear 23 meshes with the gear ring 24 installed on the outer periphery of the rotating mold 3, thereby driving the rotating mold 3 to rotate; the rotating mold 3 also rotates intermittently, with a single rotation angle of N2, N2 = 360 degrees / number of forming grooves 301; the rotation of the rotating mold 3 causes different forming grooves 301 to arrive at the stamping station in sequence, realizing continuous operation of multiple stations; in order to protect the gear ring 24 and the gear 23, a second outer cover 13 is provided on the inner side of the frame 1 to wrap them inside.

[0034] Stamping and ejection process: When the mechanical anchor bolt rotates to a specific position at the bottom of the circular housing 2, the hydraulic cylinder 10 starts working, driving the mounting frame 11 to move; the mounting frame 11 is connected to the elastic telescopic rod assembly and the stamping head 7; when the hydraulic cylinder 10 drives the elastic telescopic rod assembly to move, the push rod 8 passes through the perforations on both sides of the bottom of the circular housing 2, and under the action of the first spring 26, smoothly pushes the mechanical anchor bolt inside the bottom blanking hole 401 into the forming groove 301 of the rotating mold 3; at the same time, the movement of the mounting frame 11 drives the stamping head 7 to move, and the stamping head 7 pushes the mechanical anchor bolt inside the bottom blanking hole 401 into the forming groove 301 of the rotating mold 3. The mechanical anchor bolt at the bottom of the 3 is stamped; after stamping, the hydraulic cylinder 10 drives the mounting bracket 11 to reset. When the push rod 8 is pulled out from the bottom blanking hole 401, the rotating feeder 4 and the rotating mold 3 can be driven to rotate again for the next round of operation. It should be added that when the elastic telescopic rod assembly moves to the limited position, the mechanical anchor bolt is completely pushed into the forming groove 301, and the stamping head 7 will move a distance into the forming groove 301. At this time, the second spring is compressed, and the length of the entire elastic telescopic rod assembly is reduced to accommodate the continued movement of the stamping head 7.

[0035] It should be added that an inclined plate is installed at the bottom of the inner side of the frame 1. The automatically pushed mechanical anchor bolts fall into the inclined plate and eventually slide down to a designated position on one side.

[0036] In summary, this mechanical anchor cold heading equipment mainly consists of a frame 1, an intermittent feeding mechanism, a rotating mold 3, an automatic unloading mechanism, a stamping device, and an elastic telescopic rod assembly. Through the coordinated operation of these mechanisms, it achieves automatic feeding, stamping, and unloading of mechanical anchors, thereby improving production efficiency.

[0037] Example 2

[0038] like Figure 1 , Figure 3 and Figure 4 As shown, the mechanical anchor cold heading equipment proposed in this embodiment, compared with the first embodiment, in this embodiment, the automatic unloading mechanism includes a guide plate 25 and multiple sets of ejection components. The multiple sets of ejection components correspond one-to-one with multiple forming grooves 301. Multiple spring mounting grooves 302 are opened on the forming grooves 301, which correspond one-to-one with and are connected to the multiple forming grooves 301. The ejection components include an ejector rod 19, a limiting ring 27 and a second spring 28. The ejector rod 19 slides through the corresponding side spring mounting groove 302 and its inner end is placed in the corresponding side forming groove 301. The limiting ring 27 is set on the ejector rod 19. The second spring 28 is sleeved on the ejector rod 19 and located inside the spring mounting groove 302. The outer end of the ejector rod 19 is connected to a connecting block 20. A vertical rod 21 is connected to the connecting block 20. The guide plate 25 is set on one side of the rotating mold 3. The main body of the guide plate 25 is an open ring shape. The end of the guide plate 25 is inclined and connected to an inclined plate.

[0039] The frame 1 is provided with a first outer cover 12, the rotating mold 3 is located inside the first outer cover 12, the guide plate 25 is connected to the first outer cover 12, and the guide plate 25 and the first outer cover 12 can be fixedly connected by a connecting rod.

[0040] In this embodiment, in the initial state, the end of the vertical rod 21 rolls on the guide plate 25. To reduce friction, ball bearings can be installed on the vertical rod 21. After the stamped mechanical anchor bolt is displaced from the stamping die, the vertical rod 21 separates from the guide plate 25. Under the elastic force of the second spring 28, the ejector rod 19 quickly resets, pushing the formed mechanical anchor bolt out of the forming groove 301, thus achieving automatic unloading. After the vertical rod 21 contacts the inclined plate, as the rotating mold 3 continues to rotate, the vertical rod 21 eventually moves to the plane of the guide plate 25, and the ejector rod 19 resets. At this time, the second spring 28 is in a pre-compressed state, preparing for the next unloading. It should be added that a rubber ring can be installed on the limiting ring 27, which is used to dampen shock and buffer.

[0041] Example 3

[0042] like Figure 1As shown, in this embodiment, a mechanical anchor cold heading device is proposed. Compared with the first embodiment, in this embodiment, a fixed frame 16 is connected to the inner wall of the frame 1, a nozzle 14 is installed on the fixed frame 16, the output end of the nozzle 14 faces the edge of the rotating mold 3, and a solenoid valve 15 is installed on the nozzle 14.

[0043] In this embodiment, the equipment needs to be equipped with a lubricating oil tank and a nozzle 14 for use. The lubricating oil tank is placed above the frame 1, and the solenoid valve 15 is connected to the lubricating oil tank through a pipe. Under the action of gravity, the lubricating oil enters the nozzle 14 through the pipe and is finally sprayed into the forming groove 301. This can not only clean the residue in the forming groove 301, but also pre-lubricate the mechanical anchor bolts and the forming groove 301 before stamping, thereby improving the stamping quality and the service life of the mold.

[0044] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A cold heading device for mechanical anchor bolts, characterized in that, It includes a frame (1), a rotating mold (3), an intermittent feeding mechanism, an automatic unloading mechanism, a stamping device, and an elastic telescopic rod assembly; The intermittent feeding mechanism includes a circular housing (2), a rotary feeder (4), a feeding hopper (5), and a first servo motor (17). The circular housing (2) is located on the upper end of the frame (1). Both ends of the bottom of the circular housing (2) are provided with through holes. The feeding hopper (5) is connected to the upper end of the circular housing (2). The rotary feeder (4) is rotatably installed inside the circular housing (2). Multiple dropping holes (401) are arranged in a ring array around the outer periphery of the rotary feeder (4). The first servo motor (17) is installed on the circular housing (2), and its output shaft is connected to the rotating shaft of the rotary feeder (4). The rotating mold (3) Multiple forming grooves (301) are arranged in a ring array along the upper edge. The rotating mold (3) is rotatably mounted on the frame (1). The frame (1) is equipped with a power component for driving the rotating mold (3) to rotate. An automatic unloading mechanism is installed on the rotating mold (3) to automatically eject the anchor bolts after stamping. The stamping device includes a stamping head (7) and a hydraulic cylinder (10). The hydraulic cylinder (10) is mounted on the frame (1). A mounting bracket (11) is connected to the output shaft of the hydraulic cylinder (10). The stamping head (7) is mounted on the mounting bracket (11). An elastic telescopic rod assembly is mounted on the mounting bracket (11).

2. The cold heading equipment for mechanical anchor bolts according to claim 1, characterized in that, The automatic unloading mechanism includes a guide plate (25) and multiple sets of ejection components. Each set of ejection components corresponds to a multiple forming groove (301). Each forming groove (301) has multiple spring mounting grooves (302) that correspond to and communicate with the multiple forming grooves (301). The ejection components include an ejector rod (19), a limiting ring (27), and a second spring (28). The ejector rod (19) slides through the corresponding spring mounting groove (302) and its inner end is placed on the corresponding side. Inside the forming groove (301), the limiting ring (27) is set on the ejector rod (19), the second spring (28) is sleeved on the ejector rod (19) and located inside the spring mounting groove (302), the outer end of the ejector rod (19) is connected to the connecting block (20), the connecting block (20) is connected to the vertical rod (21), the guide plate (25) is set on one side of the rotating mold (3), the main body of the guide plate (25) is an open ring, and the end of the guide plate (25) is inclined to connect to the inclined plate.

3. The cold heading equipment for mechanical anchor bolts according to claim 2, characterized in that, A first outer cover (12) is provided on the frame (1), the rotating mold (3) is located inside the first outer cover (12), and the guide plate (25) is connected to the first outer cover (12).

4. The cold heading equipment for mechanical anchor bolts according to claim 1, characterized in that, A fixed frame (16) is connected to the inner wall of the frame (1). A nozzle (14) is installed on the fixed frame (16). The output end of the nozzle (14) faces the edge of the rotating mold (3). A solenoid valve (15) is installed on the nozzle (14).

5. The cold heading equipment for mechanical anchor bolts according to claim 1, characterized in that, The power assembly includes a second servo motor (22), a gear (23) and a gear ring (24). The second servo motor (22) is mounted on the frame (1), the gear (23) is mounted on the output shaft of the second servo motor (22), and the gear ring (24) is mounted on the outer periphery of the rotating mold (3) and meshes with the gear (23).

6. The cold heading equipment for mechanical anchor bolts according to claim 5, characterized in that, A second outer cover (13) is provided on the inner side of the frame (1), and the gear ring (24) and gear (23) are both located inside the second outer cover (13).

7. The cold heading equipment for mechanical anchor bolts according to claim 1, characterized in that, The elastic telescopic rod assembly is located on one side of the overlapping area of ​​the rotating feeder (4) and the rotating mold (3); the elastic telescopic rod assembly includes a push rod (8), a sleeve (9) and a first spring (26). The sleeve (9) is connected to the mounting bracket (11). One end of the push rod (8) is slidably installed inside the sleeve (9), and the first spring (26) is located inside the sleeve (9).

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