Automatic stamping production line and process for mass production of carbon steel barb nails

Abstract

This invention discloses an automated stamping production line and process for mass production of carbon steel pointed rivets. The production line includes a feeding mechanism, a blanking mechanism, a stacking mechanism, a bending mechanism, and a bonding mechanism. The feeding mechanism feeds batches of steel wires into the blanking mechanism for blanking. After blanking, the wires are stacked and bent before entering the bonding process. The blanking mechanism includes multiple parallel cutting punches, which are arranged obliquely at a certain angle to the wire feeding direction to cut the wires into pointed rivets at a certain angle. This invention changes the existing process of processing only single steel wires for pointed rivets. By changing the blanking angle and adding a stacking process on the basis of the original rivet production line, it proposes a "blanking first, then bonding" process flow, which can process more than 40 steel wires at the same time, greatly improving the productivity of carbon steel pointed rivets while ensuring product quality.

Description

Technical Field

[0001] This invention relates to the field of mechanical manufacturing technology, specifically to an automated stamping production line and process for mass production of carbon steel pointed-foot staples. Background Technology

[0002] Pneumatic nail gun studs are a type of pneumatic nail gun stud, typically made of galvanized iron wire. Carbon steel, with its high hardness and good wear resistance, allows for more secure fastening. The pointed tips of these studs penetrate the object at an angle, significantly enhancing their penetrating power and adhesion. Furthermore, once secured, the angled joint of the pointed tips prevents them from lifting, resulting in a more robust hold. Carbon steel pointed nail gun studs are widely used in applications where ordinary nail gun studs are insufficient, such as for hardwoods, rattan weaving, and fixing thin metal sheets.

[0003] Existing single-wire nail-making machines for producing high-carbon steel pointed-foot nails are slow because they glue individual nails together, making them unsuitable for mass production. Punch press dies, on the other hand, allow for faster production and higher precision because the workpiece undergoes plastic deformation under the pressure of the press. However, existing punch press nail-making machines primarily manufacture flat-foot nails; there is currently no equipment specifically designed for producing carbon steel pointed-foot nails. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention provides an automated stamping production line and process for mass production of carbon steel pointed-foot staples, which can significantly improve the production efficiency of carbon steel pointed-foot staples, thereby reducing production costs.

[0005] The technical solution of the present invention is as follows:

[0006] In a first aspect of the invention, an automated stamping production line for mass production of carbon steel pointed studs is provided, comprising a feeding mechanism, a blanking mechanism, a stacking mechanism, a bending mechanism, and a bonding mechanism; the feeding mechanism feeds batches of steel wires into the blanking mechanism for blanking, and after blanking, the wires are stacked and bent before entering the bonding process; wherein, the blanking mechanism includes a plurality of parallel cutting punches, the cutting punches being arranged obliquely at a certain angle to the wire feeding direction, and cutting the steel wires into pointed studs of a certain angle.

[0007] In some embodiments of the present invention, the punching mechanism further includes a working platform, on which multiple guide rails are arranged in parallel. The cutting punch is installed on the working platform at the position where the wire is to be cut. The cutting punch includes an upper cutting punch and a lower cutting punch, and is driven by a hydraulic press.

[0008] In some embodiments of the present invention, the feeding mechanism includes a drive roller, a driven roller, a guide roller and a guide groove, wherein the drive roller and the driven roller are arranged opposite to each other, and multiple sets of guide rollers are provided.

[0009] In some embodiments of the present invention, multiple guide grooves are provided to divide the drawn steel wires into multiple groups. Guide rails and pressure plates are provided in the guide grooves to ensure that the steel wires are neatly arranged in the guide grooves.

[0010] In some embodiments of the present invention, the alignment mechanism includes an electromagnetic conveyor belt, on which an alignment positioning block is provided, and a baffle plate is provided at a certain distance from the end of the electromagnetic conveyor belt. The alignment positioning block and the baffle plate work together to achieve alignment.

[0011] In some embodiments of the present invention, a bending mechanism is provided between the electromagnetic conveyor belt and the baffle plate. The bending mechanism includes a bending punch and a bending die. The bending punch is disposed below, and the bending die is disposed above. Bending pads are provided on both sides of the bending punch. The bending pads are connected to the die base by springs.

[0012] In some embodiments of the present invention, the bending mechanism further includes a push rod for pushing the bent loose nail out of the bending mechanism.

[0013] In some embodiments of the invention, the bonding mechanism includes a guide rail whose shape conforms to the shape of a curved U-shaped nail.

[0014] In some embodiments of the present invention, a first glue-applying device and a second glue-applying device are provided above the guide rail, and the loose nails are bonded by the glue-applying devices.

[0015] In a second aspect of the invention, an automated stamping production process for mass production of carbon steel pointed studs is provided, comprising: adopting a production process of stamping followed by bonding, wherein the drawn steel wire is directly punched into a punching process to form a pointed corner of a certain angle without bonding, and then after being stacked and bent, it enters the bonding process.

[0016] One or more technical solutions of the present invention have the following beneficial effects:

[0017] (1) The automated stamping production line provided by the present invention improves the previous process of punching, bending and finally bonding a single steel wire as blank when producing carbon steel pointed nails. It can punch, stack and bend multiple steel wires in batches, and the production efficiency can be increased by 30 to 40 times compared with traditional equipment.

[0018] (2) The automated stamping production line provided by the present invention can realize the mass production of carbon steel pointed studs and process multiple sets of steel wires at the same time, which greatly improves the production efficiency of high carbon steel pointed studs, thereby reducing production costs and improving product competitiveness. It also has the advantages of fast production speed and high product precision.

[0019] (3) The automated stamping production process provided by the present invention changes the existing process of only processing a single steel wire for pointed nails. Based on the original nail production line, the punching angle is changed and the stacking process is added. The process of "punching first and then bonding" is proposed, which can process more than 40 steel wires at the same time, greatly improving the productivity of carbon steel pointed nails and ensuring product quality. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the automated stamping production line of the present invention;

[0021] Figure 2 This is a schematic diagram of the automated stamping production process of the present invention;

[0022] Figure 3 This is a schematic diagram of the blanking mechanism in the automated stamping production line of the present invention;

[0023] Figure 4(a) is a perspective view of the stacking mechanism in the automated stamping production line of the present invention;

[0024] Figure 4(b) is a top view of the stacking mechanism in the automated stamping production line of the present invention;

[0025] Figure 5 This is a schematic diagram of the bending mechanism in the automated stamping production line of the present invention;

[0026] Figure 6 This is a schematic diagram of the bonding mechanism in the automated stamping production line of the present invention.

[0027] In the diagram: 1. Feeding mechanism; 2. Punching mechanism; 21. Upper cutting punch; 22. Lower cutting punch; 23. First guide rail; 24. Pad plate; 3. Alignment mechanism; 31. Electromagnetic conveyor belt; 32. Alignment positioning block; 33. Stop plate; 4. Bending mechanism; 41. Bending punch; 42. Left bending die; 43. Right bending die; 44. Pressing pad; 45. Ejector pin; 46. Ejector rod; 5. Adhesive nailing mechanism; 51. Second guide rail; 52. First adhesive applicator; 53. Second adhesive applicator. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Example 1

[0030] In a typical embodiment of the present invention, an automated stamping production line for mass production of carbon steel pointed-feet staples is proposed, such as... Figure 1 and Figure 2As shown, the assembly includes a feeding mechanism 1, a punching mechanism 2, a stacking mechanism 3, a bending mechanism 4, and a bonding mechanism 5; wherein the punching mechanism 2, the stacking mechanism 3, and the bending mechanism 4 are arranged on the same punching machine. The feeding mechanism 1 feeds batches of steel wires into the punching mechanism 2 for punching. After punching, the wires are stacked and bent before entering the bonding process to obtain the final product, thus realizing the bonding before punching in the production of staples.

[0031] like Figure 1 and Figure 2 As shown, the feeding mechanism includes a drive roller, a driven roller, a guide roller, and a guide groove. The drive roller and the driven roller are arranged opposite to each other. The drive roller is driven by a servo motor, which is torque-controlled and can complete the feeding and retraction of the steel wire while ensuring smooth feeding and retraction. The servo drive motor drives the drive roller via a chain. Under the action of the drive roller and the driven roller, the drawn steel wire is driven through the guide roller and the guide groove into the punching mechanism. Multiple sets of guide rollers are provided, and the guide groove is a multi-groove structure on the plate, which divides the drawn steel wire into multiple groups. The guide groove is equipped with guide rails and pressure plates to ensure that the steel wire is neatly arranged in the guide groove. During the feeding process, the guide roller and the guide groove should ensure that each group of steel wire is closely arranged in the horizontal direction.

[0032] like Figure 1 and Figure 3 As shown, the punching mechanism 2 includes multiple parallel cutting punches. The cutting punches are arranged obliquely at a certain angle to the wire feeding direction and are used to punch the wire and cut the wire into a pointed tip at a certain angle. The punching mechanism also includes a working platform. Multiple first guide rails 23 are arranged in parallel on the working platform. The wire is divided into several groups by the multiple first guide rails. The cutting punches are installed on the working platform at the position of the wire to be cut. The cutting punches include an upper cutting punch 22 and a lower cutting punch 23. The cutting punches are driven by a hydraulic press. The number of cutting punches is the same as the number of wire groups, and their arrangement angle is the same as the design angle of the stud tip.

[0033] like Figure 1As shown in Figures 4(a) and 4(b), the aligning mechanism 3 includes an electromagnetic conveyor belt 31, which is installed on the worktable of the punching machine. An electromagnetic device is installed inside the conveyor belt to attract carbon steel nails onto the belt using electromagnetic force. The electromagnetic force can be controlled by current to control the attraction force of nails of different specifications, ensuring that the nails do not tilt or flip during the aligning process. Aligning positioning blocks 32 are installed on the electromagnetic conveyor belt, and a baffle plate 33 is installed at a certain distance from the end of the conveyor belt. While the nails are being conveyed to the bending mechanism, the aligning positioning blocks 32 and the baffle plate 33 work together to align the cut nails. Specifically, after being pushed onto the electromagnetic conveyor belt 31, the nails remain in an oblique distribution state. They are conveyed by the electromagnetic conveyor belt 31 until they leave the conveyor belt and reach the baffle plate 33. The electromagnetic conveyor belt 31 is equipped with aligning positioning blocks 32. When the aligning positioning blocks move with the conveyor belt to the top position 32', the nails are aligned and positioned in the bending mechanism.

[0034] A bending mechanism 4 is provided between the electromagnetic conveyor belt and the baffle plate. The bending mechanism is as follows: Figure 1 and Figure 5 As shown, the bending mechanism 4 includes a bending punch 41 and a bending die, which are inverted structures. The bending die is located on top, and the bending punch is located on the bottom. The bending die consists of a left bending die 42 and a right bending die 43. The distance between the left and right bending dies forms a bending groove for embedding the U-shaped workpiece. By adjusting the distance between the left and right bending dies, the workpiece can be bent into staples of different widths. An ejector pin 45 is provided at the bottom of the bending die. Bending pads are provided on both sides of the bending punch 41. The bending pads are rectangular structures, and the upper surface of the bending pads is flush with the upper surface of the bending punch to ensure that the studs can be bent smoothly before the bending process. When the bending die is pressed down, the ejector pin 45 first contacts and presses down the bending pad to perform the bending process. The lower part of the bending pad is connected to the die base by a spring. The die base is not shown in the figure. The die base is located below the punch and the bending pad. A certain pressure is provided by the spring on the die base, which can make the bending pad automatically return to its original position after being pressed down. The bending mechanism also includes an ejector rod 46. The ejector rod has an inverted U-shaped cross-section. After the bending die returns to its original position, it ejects the loose pins to the bonding mechanism.

[0035] like Figure 1 and Figure 6As shown, the bonding mechanism 5 includes a second guide rail 51, the shape of which fits the shape of the curved U-shaped nail. A first glue-applying device 52 and a second glue-applying device 53 are arranged above the second guide rail. Loose nails are fed into the glue-applying area by the guide rail and coated with A and B glue respectively. A pair of adjustable-speed rollers are arranged at the outlet of the glue-applying area to push the nails into the nail-cutting device. The nail-cutting device cuts off the nails that have reached the specified length according to the adjusted length. A vacuum generator is also provided at the loose nail bonding mechanism to provide a small negative pressure for the glue-applying work area to meet the requirements of rapid bonding of loose nails.

[0036] The automated stamping production line provided in this embodiment improves upon the previous process of producing carbon steel pointed studs by punching, bending and finally bonding single steel wires as blanks. It can punch, stack and bend multiple steel wires in batches, increasing production efficiency by 30 to 40 times compared with traditional equipment.

[0037] Example 2

[0038] In a typical embodiment of the present invention, an automated stamping production process for mass production of carbon steel pointed-leg studs is proposed, such as... Figure 2 As shown, the processes include feeding, punching, stacking, bending and bonding.

[0039] Specifically, unbonded steel wires are tightly arranged horizontally after passing through the drive roller and driven roller. They are then divided into several groups and fed into the punching mechanism within the guide groove. The punching die consists of several obliquely arranged cutting punches, the number of which is the same as the number of steel wire groups. The parallel-arranged cutting punches cut each group of steel wires into pointed tips with the same inclination angle as the cutting punches. The cut-off studs are guided by the guide groove and pushed out of the conveyor belt by the subsequent steel wires. In the stacking process, the studs are stacked by the stacking positioning blocks on the conveyor belt and sent to the bending forming process. The bending punch bends the studs downward into an inverted U-shape, and the ejector rod sends the bent studs into the guide rail of the bonding process. On the bonding production line, the studs are coated with A and B adhesives respectively to complete the bonding. When the stud production speed is high, multiple bonding devices can be connected in parallel.

[0040] The automated stamping production process provided in this embodiment changes the existing process of processing only a single steel wire for pointed rivets. Based on the original rivet production line, the punching angle is changed and a aligning process is added. A process flow of "punching first and then bonding" is proposed, which can process more than 40 steel wires at the same time, greatly improving the productivity of carbon steel pointed rivets while ensuring product quality.

[0041] The embodiments described above provide a detailed explanation of the technical solution of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, additions, or similar substitutions made within the scope of the principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated stamping production line for mass production of carbon steel pointed-foot staples, characterized in that, It includes a feeding mechanism, a punching mechanism, a stacking mechanism, a bending mechanism, and a bonding mechanism; the feeding structure feeds batches of steel wires into the punching mechanism for punching, and after punching, the wires are stacked and bent before entering the bonding process; wherein, the punching mechanism includes multiple parallel cutting punches, which are arranged obliquely at a certain angle to the direction of wire feeding, and cut the steel wires into pointed ends at a certain angle; The feeding mechanism includes a drive roller, a driven roller, a guide roller, and a guide groove. The drive roller and the driven roller are arranged opposite to each other, and multiple sets of guide rollers are provided. Multiple guide grooves are provided to divide the drawn steel wires into multiple groups. Guide rails and pressure plates are provided in the guide grooves to ensure that the steel wires are neatly arranged in the guide grooves. The stacking mechanism includes an electromagnetic conveyor belt with stacking positioning blocks on it. A baffle plate is provided at a certain distance from the end of the electromagnetic conveyor belt. The stacking positioning blocks and the baffle plate work together to achieve stacking. A bending mechanism is provided between the electromagnetic conveyor belt and the baffle plate. The bending mechanism includes a bending punch and a bending die. The bending punch is located at the bottom, and the bending die is located at the top. Bending pads are provided on both sides of the bending punch. The bending pads are connected to the die base by springs. The bending mechanism also includes a push rod, which is used to push the bent loose nails out of the bending mechanism.

2. The automated punch press production line for mass producing carbon steel spike nails as defined in claim 1, wherein, The punching mechanism also includes a working platform with multiple guide rails arranged in parallel on the working platform. The cutting punch is installed on the working platform at the position where the steel wire is to be cut. The cutting punch includes an upper cutting punch and a lower cutting punch and is driven by a hydraulic press.

3. The automated punch press production line for mass producing carbon steel spike nails as defined in claim 1, wherein, The bonding mechanism includes a guide rail whose shape conforms to the shape of a curved U-shaped nail.

4. The automated punch press production line for mass producing carbon steel spike nails as defined in claim 1, wherein, A first glue-applying device and a second glue-applying device are provided above the guide rail, and the loose nails are bonded by the glue-applying devices.

5. An automated stamping production process for mass production of carbon steel pointed-foot staples, implemented using the automated stamping production line described in any one of claims 1-4, characterized in that, include: The production process of stamping followed by bonding is adopted. The drawn steel wires are directly punched into a certain angle in the punching process without bonding. Then, after being stacked and bent, they enter the bonding process.

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