A clamping nail mold and its continuous high-speed stamping machine.

Abstract

This invention relates to the field of high-speed punching presses and stamping dies, specifically to a clamping stud die and its continuous high-speed stamping machine. It includes an upper moving die and a lower fixed die, with the lower fixed die equipped with die guide pillars. During die closing, the upper moving die sequentially punches through wire holes and forms clamping studs from the strip. The upper moving die has a sliding block with an inclined push plate. The lower fixed die has a first and a second material channel on its upper end face, arranged in a cross shape. The lower die has a drag guide plate; the bottom surface of the drag guide plate has a guide groove, which, together with the end face of the lower die, forms a guide channel. A pusher slide plate is slidably mounted on the second material channel, and the pusher slide plate has guide holes. It also includes a pusher unit. By setting the first and second material channels in a cross shape, combined with the punching and forming of the upper moving die, the pusher unit, and the pusher slide plate driven by the inclined push plate, an automated process of punching, lateral pushing, and longitudinal pushing and sorting of clamping studs is achieved.

Description

Technical Field

[0001] This invention relates to the field of high-speed punching press and stamping die technology, and more specifically, to a die for producing clip nails and a continuous high-speed stamping machine tool including the die. Background Technology

[0002] Clip-on rivets, also known as fasteners or U-shaped rivets, are widely used in construction, packaging, and decoration industries for securing materials or objects. Traditional clip-on rivet production methods often involve single-stage molding processes, such as punching and cutting. This method has the following drawbacks: 1. Low production efficiency: Multiple processes require low-speed molds or multi-station operations, and the turnaround time between processes is time-consuming, making it difficult to achieve high-speed continuous production.

[0003] 2. Difficulty in guaranteeing accuracy: Multiple positioning can easily accumulate errors, resulting in poor dimensional consistency of the clamping nails, especially the positional accuracy of the threading hole is difficult to control.

[0004] 3. Low degree of automation: slow molding speed, labor-intensive and time-consuming, and inefficient.

[0005] 4. Complex mold structure and inconvenient maintenance: Traditional molds have complex structures, and it is difficult to replace the rear slide block and punch insert, which increases maintenance costs and downtime.

[0006] Therefore, how to provide a clamping nail mold that can achieve high-efficiency, high-precision, and automated production is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a clamping nail mold and its continuous high-speed stamping machine, which aims to achieve continuous, efficient and high-precision production of clamping nails.

[0008] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A clamping nail mold includes: an upper moving mold and a lower fixed mold. The lower fixed mold is provided with multiple mold guide pillars that slide and cooperate with the upper moving mold, so that the upper moving mold can stably open or close along the mold guide pillars and the lower fixed mold. When the mold is closed, the upper moving mold punches through the wire holes and punches the clamping nails into shape on the strip in sequence. The upper moving mold has a slider inclined push plate for pushing the formed clamping nails. The lower mold plate of the lower die has a first material channel and a second material channel on its upper end face, which are arranged in a cross shape. The lower mold plate on one side of the first material channel has a dragging guide plate for conveying the material strip towards the first material channel. The dragging guide plate that contacts the end face of the lower mold plate has a guide groove on its bottom surface, which together with the end face of the lower mold plate forms a guide channel. The second material channel is slidably provided with a pusher slide plate that is pushed by a slider inclined pusher plate to push the forming clamping nails out of the mold, and the pusher slide plate has a guide hole for the thread to pass through. It also includes a pusher unit, which pushes the forming clamping pins on the first material channel to the second material channel. When the mold is closed, the slider pusher plate pushes the pusher slider pressure plate, which in turn pushes the forming clamping pins to be arranged in the second material channel in order to wait for the wire to be connected.

[0009] The beneficial effects of this invention are as follows: By setting up a first and second material channel intersecting in a cross shape, combined with the punching and forming unit of the moving die, the ejector unit, and the ejector slide plate driven by the slider oblique pusher, an automated process of "punching-lateral pushing-vertical pushing and sorting" for the clamping staples is achieved. During mold closing, the slider oblique pusher drives the ejector slide plate, effectively utilizing the mold closing power without requiring an additional drive source. The strip is stably conveyed within the guide channel by the drag guide plate, ensuring the accuracy of the punching position. Finally, the formed clamping staples are arranged orderly in the second material channel, and through the guide holes, a precise channel is provided for subsequent automated assembly, significantly improving production efficiency and automation level.

[0010] Based on the above technical solution, the upper moving mold includes an upper mold base, an upper pad, and an upper clamping plate arranged sequentially from top to bottom. The upper clamping plate is provided with punching units and forming punches arranged sequentially along the punching line hole and the clamping pin punching forming direction; the slider inclined push plate is fixed on the upper clamping plate.

[0011] The advantages of adopting the above scheme are that the upper moving die uses a layered structure of upper die base, upper backing plate, and upper clamping plate, which is compact, strong, and facilitates the installation and maintenance of various functional components. By arranging the punching unit and forming punch sequentially along the feeding direction, the punching and forming processes can be completed continuously within the same die, ensuring positioning accuracy between processes. The slider inclined push plate is fixed on the upper clamping plate and moves with the upper moving die, with accurate and reliable driving timing.

[0012] Based on the above technical solution, the punching unit includes a first insert, a second insert, a punching pin, and two punching pieces. The first insert and the second insert are fitted together, and the two punching pieces are detachably embedded in the first insert. The side wall of the first insert near the end of the second insert has two punching piece slots for embedding the two punching pieces. The first insert between the two punching piece slots has a limiting hole for installing the punching pin. The side wall of the first insert between the two punching piece slots is formed with an insert slot, and the second insert has a first protruding edge that fits into the insert slot. The side wall of the second insert away from the first protruding edge is formed with a second protruding edge. The upper clamping plate has an installation hole that has the same shape as the first insert and the second insert after they are fitted together.

[0013] The advantages of the above solution are that the punching unit adopts a split-block structure (first block and second block) to embed the easily damaged punching pins and punching plates. Through the cooperation of the block's groove and the first protruding edge, precise positioning and stable engagement of the two blocks are achieved. The punching pins and punching plates are securely installed through limiting holes and punching plate grooves, preventing loosening. When the punching plate wears or breaks, it can be quickly replaced simply by removing the block from the mounting hole in the upper clamping plate, without disassembling the entire upper die, greatly simplifying the maintenance process and reducing downtime. The two punching plates are used to punch grooves on both sides of the clip pins for threading on the strip.

[0014] Based on the above technical solution, the side wall of the forming punch is provided with a V-shaped punch edge, and the forming punch on one side of the punch edge is provided with a clamping nail forming opening; the forming punch is provided with guide grooves on opposite sides that slide in cooperation with the drag guide plate.

[0015] The advantages of adopting the above scheme are that the V-shaped punch edge on the forming punch is used to cut off excess edge material on both sides of the strip, ensuring forming quality. The forming opening of the clamping pin is the key structure of the forming clamping pin. The structural cooperation between the guide groove and the material guide plate ensures the smooth movement and perpendicularity of the forming punch during the mold closing process, thereby ensuring forming accuracy.

[0016] Based on the above technical solution, the material guide plate is provided with guide holes that match the punching pin and the two punching pieces; the material guide plate located on the forming punch is provided with a forming groove, and the bottom of the forming groove is provided with a punch lower die forming block fixed on the lower die. The clamping nail forming groove of the punch lower die forming block is connected to the first material channel; the two inner side walls opposite to the forming groove are formed with guide protrusions that slide with the guide slide groove; when the die is closed, the punch edge punches the excess edge material of the sheet material, and the clamping nail forming opening and the punch lower die forming block cooperate to punch the sheet material into clamping nails.

[0017] The advantages of adopting the above scheme are that the material guide plate not only serves as a conveyor belt but also integrates multiple functions. Its guide holes provide precise clearance for the punching pins and punching plates, ensuring punching accuracy. The guide protrusions in the forming groove cooperate with the guide grooves of the forming punch to form a precise guiding mechanism. The punch lower die forming block, as part of the lower die, works together with the clamping pin forming opening of the forming punch to complete the final punching of the clamping pin. The formed clamping pin falls directly into the clamping pin forming groove connected to the first material channel, facilitating subsequent pushing.

[0018] Based on the above technical solution, the bottom of the pusher slide plate is formed with a guide protrusion that slides with the second material channel, and the inside of the pusher slide plate is provided with a pushing groove for the slide of the slider inclined push plate; the pusher slide plate on one side of the pushing groove is provided with a guide strip groove, and the lower template is provided with a guide rod that cooperates with the guide strip groove.

[0019] The advantages of the above solution are that the guide protrusion at the bottom of the pusher slide plate ensures smooth sliding within the second material channel. The internal push groove accommodates the slider's inclined push plate, converting the vertical movement of the upper moving die into the horizontal movement of the pusher slide plate. The guide strip groove, in conjunction with the guide rod on the lower fixed die, further restricts the movement trajectory of the pusher slide plate, ensuring it slides precisely only along the direction of the second material channel, avoiding offset and jamming, and guaranteeing the reliability of the pusher sequence. The guide holes on it provide precise guidance for subsequent wire threading.

[0020] Based on the above technical solution, the lower die includes a lower die base, a lower clamping plate and a lower template arranged sequentially from bottom to top. The lower die base and the lower clamping plate are provided with chip discharge ports for discharging waste material, and the lower template is provided with a punching groove, which is connected to the first material channel.

[0021] The advantages of adopting the above scheme are that the lower die adopts a layered structure of lower die base, lower clamping plate, and lower template, which facilitates processing and assembly. Waste generated during the punching process (such as punching waste and punching edge material) can fall directly into the chip discharge port of the lower clamping plate and lower die base through the punching groove of the lower template, realizing rapid and automatic waste removal, avoiding the impact of waste accumulation on the mold and product, and ensuring the stability of continuous production.

[0022] Based on the above technical solution, the material pushing unit includes a rear slider fixing plate fixed to the lower fixed mold. A guide rail bearing is provided on the rear slider fixing plate, and a mold guide rail is slidably mounted on it. The mold guide rail is provided with a nail push pin that slides back and forth along the first material channel to push the material. The mold guide rail at the end away from the nail push pin is connected to a driving device that drives the mold guide rail to slide along the guide rail bearing. The nail push pin is U-shaped, and the mold guide rail has two anti-deformation grooves that allow the edges of the U-shaped nail push pin to be inserted into the interior.

[0023] The advantages of adopting the above solution are that the pushing unit uses an independent drive device (such as a cylinder, hydraulic cylinder, or mechanical linkage), which, through the precise guidance of the mold guide rail and guide rail bearings, drives the nail pusher pin to move along the first material channel, accurately pushing the formed clamping nail into the second material channel. The nail pusher pin is designed in a U-shape, which can stably push the clamping nail. The anti-deformation groove opened on the mold guide rail can effectively absorb and disperse the lateral force on the pusher pin during the pushing process, prevent the pusher pin from deforming, extend its service life, and ensure the stability and reliability of the pushing action.

[0024] This solution also provides a continuous high-speed stamping machine tool for clamping nail molds, including the clamping nail mold as described above and a stamping machine tool body for driving the upper moving mold and the lower fixed mold to close or open; the stamping machine tool body includes a bed, a crankshaft rotatably mounted on the upper part of the bed, a belt and motor drive mechanism for driving the crankshaft to rotate, and a base located at the bottom of the bed, with a platform for mounting the lower mold base on the base; a dynamic balancing block is slidably mounted on the top of the bed and connected to the crankshaft via a dynamic balancing connecting rod to prevent the crankshaft from shifting during rotation, and dynamic balancing guide columns fixed to the bed are slidably mounted on both sides of the dynamic balancing block; the crankshaft is provided with an eccentric wheel, on which a connecting rod is connected; a stamping push rod is pivotally connected to the bottom of the connecting rod, and its bottom is connected to the upper mold base.

[0025] The beneficial effects of adopting the above solution are that by installing the clamping pin mold onto a dedicated high-speed stamping machine body, a complete continuous stamping production equipment is formed. The machine body uses a crankshaft connecting rod mechanism to provide stable stamping force. By setting dynamic balance blocks and dynamic balance guide columns, the unbalanced inertial force generated during crankshaft rotation is effectively counteracted, significantly reducing machine vibration and noise, improving operational stability and die life, thereby ensuring the accuracy and stability of high-speed continuous stamping.

[0026] Based on the above technical solution, the bottom of the stamping push rod is provided with a slide block connected to the upper die base, two guide slide cylinders are symmetrically provided on one side of the slide block, and the bed is provided with slider balance guide columns that cooperate with the corresponding guide slide cylinders to slide.

[0027] The beneficial effect of adopting the above scheme is that a slide with a guide cylinder is set between the stamping push rod and the upper die holder, and cooperates with the slider balance guide column on the bed to form an auxiliary guiding system for the movement of the upper die. This ensures the horizontal balance and verticality of the upper moving die during high-speed reciprocating motion, further improves the die closing accuracy, and prevents damage to the die from eccentric load.

[0028] In summary, the clamping nail mold and its continuous high-speed stamping machine provided by this invention, through mold structure and process flow design, achieve fully automated continuous production from strip feeding, punching, forming, waste removal to high-speed sorting and pushing of finished products. Its beneficial effects are summarized as follows: 1. High and stable product precision: The use of a precision guiding structure and composite process design ensures the positional accuracy of punching and forming. The machine tool's dynamic balancing and auxiliary guiding design ensure operational stability, thereby guaranteeing product consistency and high quality.

[0029] 2. High degree of automation, reducing labor costs: High-speed automatic waste discharge and automatic material pushing and sorting functions reduce manual intervention and provide conditions for back-end automated production lines, which can significantly reduce labor intensity and labor costs.

[0030] 3. Convenient mold maintenance and long service life: The punching unit adopts a modular insert design, making it quick and easy to replace vulnerable parts. Good guiding and balancing design reduces abnormal mold wear and extends the overall service life.

[0031] 4. Smooth operation and low noise: The dynamic balance design of the machine tool body effectively reduces vibration and noise during high-speed operation, improving the working environment.

[0032] 5. Significantly improved production efficiency: Multiple processes are completed at high speed and continuously within a single mold, and the integrated high-speed automatic material pushing and sorting function provides a foundation for subsequent automated production lines, significantly improving overall production efficiency. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the clamping nail mold in this invention; Figure 3 This is a schematic diagram of the lower mold structure in this invention; Figure 4 This is a schematic diagram of the upper moving mold in this invention; Figure 5 This is a schematic diagram of the punching unit in this invention; Figure 6 This is a schematic diagram of the forming punch in this invention; Figure 7 This is a schematic diagram of the material guide plate in this invention; Figure 8 This is a cross-sectional view of the clamping nail mold in this invention; Figure 9 This is a schematic diagram of the material pushing unit in this invention; Figure 10 This is a schematic diagram of the pusher slider pressure plate in this invention; Figure 11 This is a cross-sectional view of the continuous high-speed stamping machine tool in this invention. Detailed Implementation

[0034] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0035] Please refer to Figures 1 to 8 The present invention provides a clamping nail mold 1000 and its continuous high-speed stamping machine tool 2000.

[0036] like Figure 1As shown, a clamping pin mold 1000 includes an upper moving mold 1 and a lower fixed mold 2. The lower fixed mold 2 has four mold guide pillars 21 around its periphery. These mold guide pillars 21 slide and engage with guide sleeves on the upper moving mold 1, ensuring that the upper moving mold 1 can perform smooth and precise opening or closing movements relative to the lower fixed mold 2 along the direction of the mold guide pillars 21. During mold closing, the upper moving mold 1 sequentially punches through wire holes and forms clamping pins from the continuously fed strip (metal strip). A slider inclined pusher 13 is fixedly installed on the upper moving mold 1 for pushing the mechanism inside the mold during the later stage of mold closing.

[0037] Please combine Figure 2 and Figure 3 The lower mold 2 includes a lower template 22, on which a first material channel 221 and a second material channel 222 are provided, which are connected in a cross shape. A material guide plate 23 is provided on one side of the first material channel 221, and the material guide plate 23 is installed close to the upper end face of the lower template 22. A guide groove 231 is provided on the bottom surface of the material guide plate 23, which together with the end face of the lower template 22 forms a material guide channel through which the material belt passes. The material belt is pushed by a feeding mechanism (such as an external feeder) and is stably conveyed forward in the material guide channel; the width and thickness of the material guide channel are 0.01mm-0.05mm greater than the material belt, or equal to the material belt, to facilitate pulling the material belt and avoid the problem of material belt deviation during conveying.

[0038] A pusher slide plate 24 is slidably disposed on the second material channel 222. The pusher slide plate 24 has a guide hole 241 for the wire to pass through. When the mold is closed, the slider slant pusher 13 on the upper moving mold 1 inserts into and pushes the pusher slide plate 24, causing it to slide along the second material channel 222.

[0039] The mold also includes a pusher unit 3, which pushes the clamping pins that have just been punched on the first material channel 221 to the second material channel 222. During operation, when the upper moving mold 1 closes, the slider inclined push plate 13 pushes the pusher slider pressure plate 24. The pusher slider pressure plate 24 slides in the second material channel 222, pushing the clamping pins previously pushed by the pusher unit 3 a distance along the second material channel 222 towards the outside of the mold, so that multiple clamping pins are closely arranged in the second material channel 222, preparing for subsequent automated production line.

[0040] Specifically, such as Figure 4 As shown, the upper moving mold 1 adopts a multi-layer plate structure, including an upper mold base 11, an upper pad 12, and an upper clamping plate 13, which are fixedly connected from top to bottom. The slider inclined push plate 14 is fixedly installed on the upper clamping plate 13. A punching unit 15 and a forming punch 16 are arranged sequentially on the upper clamping plate 13 along the material conveying direction.

[0041] like Figure 5As shown, the punching unit 15 adopts a modular design, consisting of a first insert 151, a second insert 152, a punching pin, and two punching pieces 153. The first insert 151 and the second insert 152 can be fitted together. Specifically, the first insert 151 has two punching piece slots 1511 for fitting the two punching pieces 153 on its side wall near the second insert 152, and a limiting hole 1512 for mounting the end of the punching pin is formed between the two punching piece slots 1511. In addition, the first insert 151 also has an insert groove 1513 formed on this side wall. The second insert 152 has a first protruding edge 1521 that mates with the insert groove 1513, and a second protruding edge 1522 is formed on the other side wall away from the first protruding edge 1521. The upper clamping plate 13 has a mounting hole 131, the shape of which is consistent with the overall shape of the first insert 151 and the second insert 152 after fitting together. During installation, the punched piece 153 is first placed into the punched piece groove 1511, then the punching pin is installed into the limiting hole 1512. Next, the first insert 151 and the second insert 152 are fitted together through the insert groove 1513 and the first protrusion 1521, and then the entire assembly is installed and fixed into the mounting hole 131. This structure allows for quick and convenient replacement of the worn punched piece 153 by simply removing the entire punching unit 15 from the upper clamping plate 13 and separating the first and second inserts.

[0042] It should be noted that the two punching plates 153 are used to punch out the slots for threading the clamping nails on both sides of the strip. After the clamping nails are formed, when threading is required, the external wire pulling and feeding mechanism pulls the thread through the corresponding threading slot. When the mold is closed, the lower mold plate 22 is equipped with a pressure bar to press the thread on both sides into the threading slot, so that the thread is embedded in the threading slot and multiple clamping nails are connected together. Then the thread is cut off by the cutting blade on the mold.

[0043] like Figure 6 As shown, the forming punch 16 has a V-shaped punch edge 161 on its side wall for cutting off excess waste material from the edge of the strip. On one side of the punch edge 161, the forming punch 16 has a clamping pin forming opening 162, which is the key cavity for forming the clamping pin shape. Longitudinal guide grooves 163 are formed on the opposite sides of the forming punch 16.

[0044] For example Figure 6 and Figure 7As shown, the material guide plate 23 has guide holes 232 corresponding to the position and shape of the punching pin and punching piece 153, providing precise clearance space for the punching components. A forming groove 233 is formed on the material guide plate 23 at the position corresponding to the forming punch 16. A punch lower die forming block 25 is fixed to the bottom of the forming groove 233, and the punch lower die forming block 25 has a clamping pin forming groove, which communicates with the first material channel 221. Guide protrusions 234 are formed on the two opposite inner sidewalls of the forming groove 233, and these guide protrusions 234 slide in cooperation with the guide groove 163 on the forming punch 16. During mold closing, the forming punch 16 presses down, and its punching edge 161 first cuts off the excess material from the strip. Then, the clamping pin forming opening 162 closes with the punch lower die forming block 25, punching the sheet material between them into a U-shaped clamping pin. The clamping pins formed by the punching process then fall into the first material channel 221, waiting to be pushed by the pushing unit 3.

[0045] like Figure 6 and Figure 10 As shown, a guide protrusion 242 is formed at the bottom of the pusher slider pressure plate 24. This guide protrusion 242 slides in conjunction with the second material channel 222 to ensure smooth sliding. A push groove 243 is provided inside the pusher slider pressure plate 24 to accommodate the slider inclined pusher plate 14. On one side of the push groove 243, a guide strip groove 244 is provided on the pusher slider pressure plate 24. Correspondingly, a guide rod is fixedly provided on the lower template 22. This guide rod is inserted into the guide strip groove 244 to further guide and restrict the movement direction of the pusher slider pressure plate 24.

[0046] like Figure 3 and Figure 8 As shown, the lower die 2 also includes a lower die base 26 and a lower clamping plate 27. The lower die template 22 is fixed on the lower clamping plate 27, and the lower clamping plate 27 is fixed on the lower die base 26. The lower die base 26 and the lower clamping plate 27 have through-hole chip discharge ports 261. The lower die template 22 also has a punching groove 223 communicating with the chip discharge port 261, and this punching groove 223 communicates with the first material channel 221. Waste generated during punching and forming can be directly discharged outside the die through the punching groove 223 and the chip discharge port 261.

[0047] like Figure 9As shown, the feeding unit 3 includes a rear slider fixing plate 31 fixed on the lower fixed mold 2. A guide rail bearing 32 is provided on the rear slider fixing plate 31, and the mold guide rail 33 is slidably supported on the guide rail bearing 32. In this embodiment, the mold guide rail 33 is a linear guide rail, and the guide rail bearing 32 is a slider that cooperates with the linear guide rail. The use of a linear guide rail and slider assembly improves the stability and speed of feeding. One end of the mold guide rail 33 is fixedly connected to a nail push pin 34, and the other end is connected to a driving device (not shown in the figure) (e.g., a cylinder or hydraulic cylinder). The nail push pin 34 is U-shaped and is used to push the clamping nails in the first material channel 221 from the rear. To prevent the push pin from deforming due to the thrust during the pushing process, two anti-deformation grooves 331 are provided on the mold guide rail 33. The two sides of the U-shaped nail push pin 34 are inserted into these two anti-deformation grooves 331, thereby being reinforced and supported. In addition, a stop block 35 is provided on the mold guide rail 33 near the drive device (not shown in the figure) to prevent the U-shaped nail push pin 34 from retreating when it is pushed.

[0048] During operation, the drive unit (not shown in the figure) pushes the mold guide rail 33, causing the nail pusher pin 34 to move forward along the first material channel 221, pushing one or more clip nails already formed in the first material channel 221 past the intersection point, so that they enter the second material channel 222. Subsequently, the drive unit (not shown in the figure) resets, and the nail pusher pin 34 retracts. When the upper moving mold 1 closes again, the slider inclined push plate 14 inserts into the push groove 243 of the pusher slider pressure plate 24. Due to the action of the inclined surface, the pusher slider pressure plate 24 is pushed to slide outward along the second material channel 222, further pushing the clamping pins in the second material channel 222 outward, so that they are closely arranged. The external wire pulling and wire feeding mechanism pulls the string wire through the wire groove of the arranged clamping pins. When the mold closes, the pressure rod on the lower mold plate 22 presses the string wires on both sides into the wire groove, so that the string wires are embedded in the wire groove, and the multiple clamping pins are connected together. Then the cutting knife set on the mold cuts the string wires, and the pusher slider pressure plate 24 and the external pulling mechanism pull the connected clamping pins out of the second material channel 222. In addition, when the mold opens, the pusher slider pressure plate 24 can be pushed back to its original position by the slider inclined push plate 14.

[0049] like Figure 1 and Figure 11As shown, the present invention also provides a continuous high-speed stamping machine tool 2000 including the above-mentioned clamping stud mold 1000. The machine tool includes the clamping stud mold 1000 (upper moving mold 1 and lower fixed mold 2) and a stamping machine tool body 4. The stamping machine tool body 4 includes a bed 41, with a crankshaft 42 rotatably mounted on the upper end of the bed 41. The crankshaft 42 is driven to rotate by a belt and motor drive mechanism. A base 44 is provided at the bottom of the bed 41, and a platform 45 for fixing the lower mold base 26 is provided on the base 44. A dynamic balancing block 46 is slidably mounted on the top of the bed 41. The dynamic balancing block 46 is connected to the crankshaft 42 through a dynamic balancing connecting rod 47, and has dynamic balancing guide columns 48 fixed on the bed 41 on both sides that slide with it to counteract the inertial force generated when the crankshaft 42 rotates, thereby reducing machine tool vibration. An eccentric wheel 421 is mounted on the crankshaft 42, and a connecting rod 49 is connected to the eccentric wheel 421. A stamping push rod 410 is pivotally connected to the bottom of the connecting rod 49, and the bottom of the stamping push rod 410 is connected to the upper die holder 11 via a slide block 411. Two guide cylinders 412 are symmetrically arranged on one side of the slide block 411. A slider balance guide post 413 is mounted on the bed 41 and slides in cooperation with the guide cylinders 412 to ensure the verticality and stability of the upper moving die 1. An oil seal 414 is installed at the connection end between the bed 41 and the slider balance guide post 413.

[0050] During operation, the motor drive mechanism rotates the crankshaft 42 via a belt, causing the eccentric wheel 421 on the crankshaft 42 to rotate accordingly. The rotation of the eccentric wheel 421 is converted into the vertical linear motion of the stamping push rod 410 via the connecting rod 49. When the stamping push rod 410 moves downward, it pushes the upper moving die 1 downward via the slide block 411, cooperating with the lower fixed die 2 to complete the stamping forming operation of the clamping nail. During this process, the guide slide 412 slides along the slider balance guide post 413, providing precise guidance for the movement of the upper moving die 1, ensuring the verticality and stability of the die movement during the stamping process, thereby improving the accuracy and quality of the clamping nail stamping forming.

[0051] Meanwhile, driven by the dynamic balancing connecting rod 47, the dynamic balancing block 46 moves up and down as the crankshaft 42 rotates. Since the movement of the dynamic balancing block 46 is opposite in direction to the inertial force generated by the rotation of the crankshaft 42, it effectively counteracts the inertial force generated during the rotation of the crankshaft 42, greatly reducing machine tool vibration. This not only helps to extend the service life of the machine tool but also reduces noise caused by vibration, improving the working environment.

[0052] During the stamping process, the table 45 firmly fixes the lower die holder 26 of the lower fixed die 2, ensuring the stability of the lower fixed die 2 during the stamping process. The bed 41, as the supporting structure of the entire machine tool, provides a stable mounting base for all components, ensuring the overall structural stability and reliability of the machine tool. After one stamping operation is completed, the crankshaft 42 continues to rotate, driving the stamping push rod 410 to move upward, and the upper moving die 1 returns to its original position, waiting for the start of the next stamping operation. This cycle repeats continuously, realizing the continuous stamping production of clamping nails, improving production efficiency and reducing production costs.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A clamping nail mold, characterized in that, include: The upper moving mold and the lower fixed mold are provided with multiple mold guide pillars around the lower fixed mold that slide with the upper moving mold, so that the upper moving mold can stably open or close along the mold guide pillars and the lower fixed mold. When the mold is closed, the upper moving mold punches through the wire holes and punches the clamping pins of the strip in sequence. The upper moving mold has a sliding block for pushing the formed clamping pins. The lower mold plate of the lower die has a first material channel and a second material channel on its upper end face, which are arranged in a cross shape. The lower mold plate on one side of the first material channel has a dragging guide plate for conveying the material strip towards the first material channel. The dragging guide plate that contacts the end face of the lower mold plate has a guide groove on its bottom surface, which together with the end face of the lower mold plate forms a guide channel. The second material channel is slidably provided with a pusher slide plate that is pushed by a slider inclined pusher plate to push the forming clamping nails out of the mold, and the pusher slide plate has a guide hole for the thread to pass through. It also includes a pusher unit, which pushes the forming clamping pins on the first material channel to the second material channel. When the mold is closed, the slider pusher plate pushes the pusher slider pressure plate, which in turn pushes the forming clamping pins to be arranged in the second material channel in order to wait for the wire to be connected.

2. The clamping nail mold according to claim 1, characterized in that, The upper moving die includes an upper die base, an upper backing plate, and an upper clamping plate arranged sequentially from top to bottom. The upper clamping plate is provided with punching units and forming punches arranged sequentially along the punching line hole and the clamping pin punching direction; the slider inclined push plate is fixed on the upper clamping plate.

3. The clamping nail mold according to claim 2, characterized in that, The punching unit includes a first insert, a second insert, a punching pin, and two punching pieces. The first insert and the second insert are fitted together, and the two punching pieces are detachably fitted into the first insert. The side wall of the first insert near the second insert has two punching piece slots for fitting the two punching pieces. The first insert between the two punching piece slots has a limiting hole for installing the punching pin. The side wall of the first insert between the two punching piece slots is formed with an insert slot, and the second insert has a first protruding edge that fits into the insert slot. The side wall of the second insert away from the first protruding edge is formed with a second protruding edge. The upper clamping plate has a mounting hole that has the same shape as the first insert and the second insert after they are fitted together.

4. The clamping nail mold according to claim 3, characterized in that, The forming punch has a V-shaped punch edge on its side wall, and a clamping pin forming opening is provided on one side of the forming punch edge; guide grooves that slide and cooperate with the material guide plate are provided on the opposite sides of the forming punch.

5. The clamping nail mold according to claim 4, characterized in that, The material guide plate has guide holes that match the punching pin and the two punching pieces; the material guide plate located on the forming punch has a forming groove, and the bottom of the forming groove has a punch lower die forming block fixed on the lower die. The clamping nail forming groove of the punch lower die forming block is connected to the first material channel; the two inner side walls opposite to the forming groove are formed with guide protrusions that slide with the guide slide; when the die is closed, the punch edge punches the excess edge material of the sheet material, and the clamping nail forming opening and the punch lower die forming block cooperate to punch the sheet material into clamping nails.

6. The clamping nail mold according to claim 1, characterized in that, The bottom of the pusher slide plate has a guide protrusion that slides with the second material channel. The inside of the pusher slide plate has a pushing groove for the sliding of the slider inclined push plate. The pusher slide plate on one side of the pushing groove has a guide strip groove, and the lower template has a guide rod that cooperates with the guide strip groove.

7. The clamping nail mold according to claim 1, characterized in that, The lower die includes a lower die base, a lower clamping plate, and a lower template arranged sequentially from bottom to top. The lower die base and the lower clamping plate are provided with chip discharge ports for discharging waste material, and the lower template is provided with a punching groove, which is connected to the first material channel.

8. The clamping nail mold according to claim 1, characterized in that, The material pushing unit includes a rear slider fixing plate fixed to the lower fixed mold. A guide rail bearing is provided on the rear slider fixing plate, and a mold guide rail slides on it. The mold guide rail is provided with a nail push pin that slides back and forth along the first material channel to push the material. The mold guide rail at the end away from the nail push pin is connected to a drive device that drives the mold guide rail to slide along the guide rail bearing. The nail push pin is U-shaped, and the mold guide rail has two anti-deformation grooves that allow the edges of the U-shaped nail push pin to be inserted into the interior.

9. A continuous high-speed stamping machine for clamping nail dies, characterized in that, The press includes a clamping nail mold as described in any one of claims 1-8 and a press body for driving the upper moving mold and the lower fixed mold to close or open; the press body includes a bed, a crankshaft rotatably mounted on the upper part of the bed, a belt and motor drive mechanism for driving the crankshaft to rotate, and a base at the bottom of the bed, the base being provided with a platform for mounting the lower die holder; a dynamic balancing block is slidably mounted on the top of the bed and connected to the crankshaft via a dynamic balancing connecting rod to prevent the crankshaft from shifting during rotation, and dynamic balancing guide columns fixed to the bed are slidably mounted on both sides of the dynamic balancing block; the crankshaft is provided with an eccentric wheel, on which a connecting rod is connected; a press push rod is pivotally connected to the bottom of the connecting rod, and its bottom is connected to the upper die holder.

10. The continuous high-speed stamping machine for the clamping nail mold according to claim 9, characterized in that, The bottom of the stamping push rod is provided with a slide block connected to the upper die base. Two guide slide cylinders are symmetrically provided on one side of the slide block, and the bed is provided with slider balance guide columns that cooperate with the corresponding guide slide cylinders to slide.

Images