An automatic nail chain welding device

Abstract

The present application relates to chain processing equipment field, nail chain automatic welding equipment, including box body, and the nail chain welding machine for conveying chain is set up in the box body inside, and chain conveying mechanism, and the nail column feeding device for conveying nail column to the nail chain welding machine, the nail chain welding machine includes punch head and punch base, punch head and punch base are on both sides of the conveying track which is constructed by chain conveying mechanism, the punch head includes punch driving part which is arranged on punch fixed base, and the upper conducting seat which is connected on the output end of punch driving part, the lower conducting mold for positioning the chain is constructed on the punch base. The nail chain automatic welding equipment can adopt cylindrical nail column to weld on the chain to form nail chain, so as to simplify the nail column structure, reduce the production requirement of nail column, select material conveniently, and do not need to align during welding, and further improve the production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of chain processing equipment, in particular to a nail chain automatic welding equipment. BACKGROUND

[0002] Anti-skid chain is a common device for vehicle anti-skid in rainy and snowy weather, which plays an important role in the safe driving of vehicles. Common anti-skid chains generally use net-shaped chains or net-shaped rubber chains to wrap around the tire to prevent skidding. Although this type of net-shaped chain or net-shaped rubber chain can achieve a certain anti-skid effect, the contact area between the chain link surface and the ground is still relatively large, so the anti-skid effect is generally poor.

[0003] In order to further improve the anti-skid effect of the anti-skid chain, a tire anti-skid chain is disclosed in the prior art patent with publication number "CN200984948Y", which includes two side chains and a plurality of horizontal chains arranged between the two side chains. The horizontal chain is composed of a plurality of chain links, and one or two anti-skid nails are arranged on the chain link. This type of chain link with anti-skid nails is convenient to use, has good grip and is easy to fix.

[0004] In the above-mentioned prior art patent, the anti-skid nails are in the shape of a ladder, and the lower end surface is provided with a groove matched with the chain link. The two anti-skid nails are located on the same side of the chain link surface, and the two anti-skid nails are welded on two symmetrical protruding points on the cross chain link. However, such anti-skid nails not only have a complicated production process, but also need to be matched with the chain link when welded on the chain, which is also relatively troublesome to operate.

[0005] In addition, a welding workbench for nail chain processing is disclosed in the Chinese utility model patent with publication number "CN217799885U", which includes a feeding rotary wheel, a welding setting table, a longitudinal welding machine, a discharging rotary wheel, a transverse welding machine, and a welding fixing table. The feeding rotary wheel and the discharging rotary wheel are respectively arranged at the two ends of the welding setting table and the welding fixing table. The top outer wall of the welding setting table is fixedly connected with a vertical limiting table. The outer wall of the welding setting table near the welding fixing table is sequentially provided with a guide hole, a vertical moving groove, and a horizontal moving groove from bottom to top. This scheme ensures that the adjacent two chain links are kept horizontal and vertical through the horizontal moving groove, the vertical moving groove, and the vertical limiting table on the welding setting table. The vertical chain link below the vertical limiting table is planted with nails by the transverse welding machine, and the horizontal chain link on the other side of the welding setting table is planted with nails by the longitudinal welding machine. At the same time, the two chain links are welded and planted with nails. However, this type of welding workbench is only suitable for the nail chain as disclosed in the prior art patent, and cannot be applied to the nail chain as disclosed in the patent document with publication number "CN200984948Y". The main reason is that the welding workbench aims to simultaneously weld and plant nails on two chain links, so the welding fixing table is only suitable for ordinary cross-shaped chains. SUMMARY

[0006] In order to solve the above problems, the purpose of the present application is to provide a nail chain automatic welding equipment, which can use cylindrical nails to weld on the chain to form a nail chain, thereby simplifying the nail structure, reducing the production requirements of the nail, making the material selection convenient, and not needing to align during welding, thereby improving the production efficiency.

[0007] In order to achieve the above purpose, the present application adopts the following technical solutions:

[0008] The nail chain automatic welding equipment comprises a box body, a nail chain welding machine arranged in the box body, a chain conveying mechanism for conveying the chain, and a nail feeding device for conveying the nail to the nail chain welding machine; characterized in that: two groups of nail chain welding machines are arranged in the box body along the conveying direction of the chain, the chain conveying mechanism comprises a chain adjusting device arranged between the two groups of nail chain welding machines, and chain driving devices arranged on the front and rear sides of the chain adjusting device.

[0009] The nail chain welding machine comprises a punching head and a punching base, and the punching head and the punching base are arranged on the upper and lower sides of the conveying track formed by the chain conveying mechanism; the punching head comprises a punching driving part arranged on a punching fixed base, and an upper electrically conductive seat connected to the output end of the punching driving part, and the upper electrically conductive seat is provided with a clamping device for clamping and fixing the nail; the punching base is provided with a lower electrically conductive mold for positioning and placing the chain, and a lifting mechanism for driving the lower electrically conductive mold to lift; the upper electrically conductive seat and the lower electrically conductive mold are respectively connected to the positive and negative poles of the power supply, and the punching driving part and the lifting mechanism respectively drive the upper electrically conductive seat and the lower electrically conductive mold to relatively approach or move away; during the punching and welding, the lifting mechanism drives the lower electrically conductive mold to lift to be flush with the conveying track on both sides, the nail is supported on the chain and fixed by electric welding.

[0010] The present application adopts the above technical solution, which relates to a nail chain automatic welding equipment, which adopts two groups of nail chain welding machines, and two nails are welded on each link of the chain by the two groups of nail chain welding machines in sequence, so as to form the nail chain as disclosed in the prior utility model patent with the publication number CN200984948Y. On this basis, the chain adjusting device between the two groups of nail chain welding machines is used to buffer the chain, so that the working frequencies of the two nail chain welding machines do not need to be consistent, so as to ensure that the two nail chain welding machines move independently and do not interfere with each other.

[0011] The nail chain welding machine comprises a punch head and a punch base, a nail column feeding device is used to feed the nail column to the welding station, the punch head is clamped and fixed by a clamping device, and the chain is positioned and placed on the lower conductive die. During welding, the punch driving part drives the upper conductive seat and the nail column thereon to move downward until the nail column is supported on the chain. At this time, the power is turned on, the nail column and the chain are in contact and conductive heating occurs, at this time, the punch driving part continues to press the nail column for a certain stroke, so that the nail column below is deformed and adheres to the chain, and the welding is completed.

[0012] The nail chain welding machine can be used to weld the cylindrical nail column on the chain to form a nail chain, thereby simplifying the structure of the nail column, reducing the production requirements of the nail column, facilitating material selection, and eliminating the need for alignment during welding, thereby improving production efficiency.

[0013] Further in this scheme, the lower conductive die of the punch base is arranged on the lifting mechanism, so that the up and down movement of the lower conductive die can be realized. During welding, the upper conductive seat and the nail column thereon move downward, the lower conductive die moves upward, and the abutting welding is realized at the position where the lower conductive die is aligned with the two sides of the conveying track. The conveying track here conveys the chain in the horizontal direction, and during the conveying of the chain, the lower conductive die can move downward to avoid interference with the conveying of the chain.

[0014] As a preferred, the chain adjusting device comprises an adjusting seat, and a lifting pulley slidingly arranged on the adjusting seat, and the chain passes around the lifting pulley. This scheme can adjust the amount of chain buffer between the two nail chain welding machines based on the up and down movement of the lifting pulley relative to the adjusting seat, so that the chain on both sides is tensioned and not loose.

[0015] In a further embodiment, the clamping device comprises a fixed block and a movable block arranged on the upper conductive seat respectively, and a clamping driving assembly connected to the movable block; the clamping driving assembly can drive the movable block to move close to or away from the fixed block, and a clamping opening for fixing the nail column is formed between the movable block and the fixed block. In this scheme, the caliber of the clamping opening is adjusted based on the movement of the movable block relative to the fixed block, for clamping or releasing the nail column. In a specific embodiment, the clamping driving assembly comprises a clamping base arranged beside the upper conductive seat, a first linkage rod pivotally connected to the clamping base at the middle part, and a clamping driving cylinder connected to one end of the first linkage rod through an output shaft; the other end of the first linkage rod is connected to the movable block through a push rod. When the clamping driving cylinder is driven, it will swing along the pivot end of the first linkage rod, causing the other end of the first linkage rod to move, and then driving the movable block to move relative to the fixed block through the push rod.

[0016] As preferred, the lifting mechanism comprises a lifting support rod connected to the lower conductive die, and a lifting cylinder connected to and driving the lifting support rod; the output direction of the lifting cylinder is horizontally arranged, and a second linkage rod is hingedly arranged on the stamping base, the second linkage rod is L-shaped, the end corner of the second linkage rod is hingedly arranged on the stamping base, the output end of the lifting cylinder is connected to one end of the second linkage rod, and the lower end of the lifting support rod is movably connected to the other arm of the second linkage rod. In this scheme, the lifting cylinder drives the second linkage rod to rotate relative to the hinge at the end corner, thereby driving the lifting support rod and the lower conductive die connected thereto to lift.

[0017] As preferred, the lower conductive die is connected to the fine adjustment base, and an adjusting screw is arranged on the fine adjustment base, which is used to adjust the height of the lower conductive die. This scheme takes into account that the lower conductive die is used to place the chain on one hand, and requires conductivity on the other hand. Therefore, a copper lower conductive die is used in actual production, which will be worn out during stamping and welding. Therefore, the height of the lower conductive die can be adjusted in real time by adjusting the height of the adjusting screw, so as to avoid the height difference caused by wear, which reduces the welding strength of the nail column and the chain.

[0018] In a specific embodiment, a pressing device for positioning and pressing the chain on the lower conductive die is further included, and the pressing device comprises two pressing components for pressing the chain to be welded at the same time, and the two pressing components are arranged on the two sides of the chain conveying direction respectively. This scheme uses two pressing components to press the two sides of the same chain respectively, so as to stably fix the chain on the lower conductive die.

[0019] In a specific scheme, the pressing device comprises two groups of pressing mechanisms, and each pressing mechanism comprises a pressing base fixed on the stamping base, a pressing shaft, a pressing rod and a pressing cylinder; the pressing base comprises a sleeve portion, the pressing shaft is arranged in the sleeve portion, the output end of the pressing cylinder is connected to the pressing shaft through a connecting rod, the other end portion of the pressing shaft extends to the side of the stamping station, and the pressing rod is radially connected to the end portion of the pressing shaft adjacent to the stamping station. In this scheme, when the pressing mechanism works, the pressing shaft is driven to rotate by the pressing cylinder, and the pressing rod on the working end of the pressing shaft is rotated by a certain angle, and is pressed on the chain.

[0020] The pressing rods on the two sides press the two sides of the same chain at the same time, which can ensure that the chain link is fixed in place.

[0021] As preferred, the nail column feeding device comprises a receiving mechanism supported on the end part of the feeding track, and a conveying swing mechanism for receiving the nail column from the discharging end of the receiving mechanism and transporting the nail column to the welding station; the conveying swing mechanism comprises a rotating shaft, a swing lever connected to the rotating shaft, and a supporting part provided on the swing lever; a receiving groove is formed on the movable end of the swing lever, and the supporting end of the supporting part is arranged below the receiving groove as the bottom support of the receiving groove; the swing lever can rotate with the rotating shaft, the receiving groove is arranged on the discharging end of the receiving mechanism, and the receiving mechanism is used to press-fit the nail column in the receiving groove; when the receiving groove is arranged on the welding station, the supporting part is used to eject the nail column in the receiving groove.

[0022] The technical scheme relates to a nail column feeding device, the receiving mechanism of the nail column feeding device receives the nail column from the end part of the feeding track connected to the end of the vibrating disc, and then sends the nail column to the conveying swing mechanism, so that the conveying swing mechanism transports the nail column to the welding station for welding.

[0023] Specifically, during work, the receiving groove on the movable end of the swing lever can receive the nail column on the discharging end of the receiving mechanism, the nail column in this state is arranged inside the receiving groove and is supported by the supporting end of the supporting part at the bottom. Then, the swing lever is moved during the rotation of the rotating shaft, until the receiving groove of the swing lever moves to the welding station, at which time the supporting part ejects the nail column in the receiving groove to the welding station, thereby realizing the feeding of the nail column.

[0024] Based on this scheme, the automatic feeding of the nail column can be realized, and the feeding efficiency is improved.

[0025] As preferred, the conveying swing mechanism further comprises a supporting driving part acting on the supporting part; the supporting part is constructed as a supporting lever hinged at the middle part of the swing lever, the driving end of the supporting lever is below the connecting end of the swing lever, the driven end is below the receiving groove as the bottom support of the receiving groove, and a lifting rod is arranged on the driven end of the supporting lever and extends into the receiving groove; the rotating shaft is a hollow rotating shaft, and the output end of the supporting driving part passes through the hollow rotating shaft and acts on the driving end of the supporting part.

[0026] In the technical scheme, the rotating shaft is constructed as a hollow rotating shaft, the space inside the hollow rotating shaft is used for the output end of the supporting driving part to pass through, and the supporting part is constructed as a lever, so that when the output end of the supporting driving part acts on the driving end of the supporting lever, the driven end of the supporting lever is lifted to support the nail column in the receiving groove, thereby realizing the feeding.

[0027] By using this scheme, the effect is that the supporting driving part can be fixedly arranged without being installed on the swing lever, so that the rotation of the swing lever is not interfered by the installation (such as gas distribution or wiring) of the supporting driving part, and the structure is more simplified.

[0028] As preferred, the material receiving mechanism comprises a material receiving base, a material discharging cylinder and a conveying cylinder, the material receiving base is internally provided with a conveying channel, and a feeding pipe and a discharging port respectively communicated with the two ends of the conveying channel; the feeding pipe of the conveying channel is connected with the output end of the vibrating disc, the conveying cylinder is used to push the nail column in the conveying channel to the discharging port, and the output end of the material discharging cylinder faces the discharging port. In this scheme, the nail columns arranged in a specified manner are sent out on the output track of the vibrating disc, and then sent into the conveying channel of the material receiving base through the feeding pipe, and then pushed to the discharging port by the conveying cylinder, and finally pressed into the receiving groove of the swing rod by the material discharging cylinder.

[0029] As preferred, the chain conveying mechanism further comprises a guide device arranged on the input side box body and used to guide the chain into the box body, and a cutting device arranged outside the output side box body; at least one set of chain driving devices adopts a counting conveying wheel. In this scheme, the chain to be welded is guided into the box body by the guide device after being drawn out from the barrel, and then driven to move by the chain driving devices, and then sent into the cutting device after being welded with nail columns by the two nail chain welding machines, and then intermittently cut by the cutting device based on the counting of the counting conveying wheel, so as to segment the chain. The cutting device can refer to the chain cutting mechanism disclosed in the Chinese invention patent with the publication number CN112475214B. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 The nail column processed by the device provided by the present application is shown in the figure.

[0031] Figure 2 The schematic diagram of the automatic welding device provided by the present application is shown in the figure.

[0032] Figure 3 The structure diagram of the nail chain welding machine is shown in the figure.

[0033] Figure 4 The plane structure diagram of the nail column feeding device is shown in the figure.

[0034] Figure 5 The three-dimensional structure diagram of the nail column feeding device is shown in the figure.

[0035] Figure 6 The structure diagram of the clamping device is shown in the figure.

[0036] Figure 7 The structure diagram of the pressing mechanism is shown in the figure. DETAILED DESCRIPTION

[0037] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below are exemplary and are intended to explain the present application, and are not to be understood as limiting the present application.

[0038] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more, unless otherwise explicitly limited.

[0040] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0042] As Figures 2-7As shown, the embodiment relates to a nail chain automatic welding device, which comprises a box body 1, a nail chain welding machine 2 arranged in the box body 1, a chain conveying mechanism for conveying the chain, and a nail column feeding device 4 for conveying the nail column to the nail chain welding machine 2.

[0043] The box body 1 is provided with two groups of nail chain welding machines 2 along the conveying direction of the chain, the chain conveying mechanism comprises a chain adjusting device 31 arranged between the two groups of nail chain welding machines 2, at least one chain driving device 32 arranged on the front and rear sides of the chain adjusting device 31, a guide device 33 arranged on the input side of the box body 1 for guiding the chain into the box body 1, and a cutting device 34 arranged on the output side of the box body 1. At least one of the chain driving devices 32 adopts a counting conveying wheel, which is arranged close to the cutting device 34. In this scheme, the chain 200 to be welded is guided into the box body 1 through the guide device 33 after being drawn out of the barrel, driven by the chain driving device 32, welded with the nail column 100 by the two nail chain welding machines 2, and then sent to the cutting device 34. The cutting device 34 intermittently cuts the chain based on the counting of the counting conveying wheel, so as to segment the chain. The cutting device 34 can refer to the chain cutting mechanism disclosed in the Chinese invention patent with the publication number CN112475214B.

[0044] In this process, the two groups of nail chain welding machines 2 weld two nail columns 100 on each link of the chain in turn, which is used for welding to form the nail chain as disclosed in the prior utility model patent with the publication number CN200984948Y, which can also refer to Figure 1 On this basis, the chain adjusting device 31 between the two groups of nail chain welding machines 2 is used for buffering the chain, so that the working frequencies of the two nail chain welding machines 2 do not need to be consistent, so as to ensure the independent movement of the two nail chain welding machines 2 and the non-interference between them. In a further scheme, the chain adjusting device 31 comprises an adjusting seat 311 and a lifting pulley 312 slidingly arranged on the adjusting seat 311, and the chain 200 passes around the lifting pulley 312. In this scheme, the amount of chain buffering between the two nail chain welding machines can be adjusted based on the up-down movement of the lifting pulley 312 relative to the adjusting seat 311, so that the chain on the front and rear sides is tensioned and not loose.

[0045] As shown in the figure, Figures 3-5As shown, the nail column feeding device 4 comprises a receiving mechanism 43 received on the end part of the feeding track 42, and a conveying swing mechanism 44 for receiving the nail column 100 from the discharge end of the receiving mechanism 43 and transporting the nail column 100 to the welding station. The conveying swing mechanism 44 comprises a rotating shaft 441, a swing motor 442 for driving the rotating shaft 441 to rotate, a swing rod 443 connected to the rotating shaft 441, and a supporting part provided on the swing rod 443. The swing rod 443 is provided with a receiving groove 4431 on the movable end thereof, and the supporting end of the supporting part is arranged below the receiving groove 4431 as the bottom support of the receiving groove 4431. The swing rod 443 can rotate with the rotating shaft 441, and the receiving groove 4431 is arranged on the discharge end of the receiving mechanism 43, so that the receiving mechanism 43 presses the nail column 100 into the receiving groove 4431. When the receiving groove 4431 is arranged on the welding station, the supporting part pushes the nail column 100 in the receiving groove 4431 out.

[0046] The technical scheme relates to a nail column feeding device 4, wherein the receiving mechanism 43 of the nail column feeding device 4 is connected to the end part of the feeding track 42 at the end of the vibrating disc, and then is sent to the conveying swing mechanism 44, so that the conveying swing mechanism 44 transports the nail column 100 to the welding station for welding. Specifically, the receiving groove 4431 on the movable end of the swing rod 443 can receive the nail column 100 on the discharge end of the receiving mechanism 43, and the nail column 100 in this state is arranged inside the receiving groove 4431 and is supported by the supporting end of the supporting part. Then, the swing rod 443 is moved by the rotating shaft 441 during rotation, until the receiving groove 4431 of the swing rod 443 moves to the welding station, and then the supporting part pushes the nail column 100 in the receiving groove 4431 out to the welding station, so as to realize the feeding of the nail column 100.

[0047] Based on the scheme, the automatic feeding of the nail column 100 can be realized, and the feeding efficiency is improved.

[0048] In the like Figure 4 and 5In the further preferred scheme shown, the conveying swing mechanism 44 further comprises a supporting and pushing driving part 444 acting on the supporting part. The supporting part is constructed as a supporting and pushing lever 445 hingedly connected in the middle to the swing rod 443, with the driving end of the supporting and pushing lever 445 below the connecting end of the swing rod 443, the driven end below the receiving groove 4431 as a bottom support of the receiving groove 4431, and the driven end provided with a pushing rod 446 extending into the inside of the receiving groove 4431. The rotating shaft 441 is a hollow rotating shaft 441, and the output end of the supporting and pushing driving part 444 passes through the hollow rotating shaft 441 to act on the driving end of the supporting part. In a specific embodiment, the supporting and pushing driving part 444 is a supporting and pushing cylinder, with the cylinder shaft of the supporting and pushing cylinder passing through the hollow rotating shaft 441 to act on the driving end of the supporting part. In this technical scheme, the rotating shaft 441 is constructed as a hollow rotating shaft 441, the space inside the hollow rotating shaft 441 is used for the output end of the supporting and pushing driving part 444 to pass through, and the supporting part is constructed in the form of a lever, so that when the output end of the supporting and pushing driving part 444 acts on the driving end of the supporting and pushing lever 445, the driven end of the supporting and pushing lever 445 will be raised to support the nail column 100 in the receiving groove 4431, thereby achieving feeding. This scheme has the effect that the supporting and pushing driving part 444 can be fixedly arranged without being mounted on the swing rod 443, so that the rotation of the swing rod 443 will not be interfered by the mounting of the supporting and pushing driving part 444 such as gas or wiring, and the structure is more simplified.

[0049] As shown in the figure, the receiving mechanism 43 comprises a receiving base 431, a discharging cylinder 432 and a conveying cylinder 433, the receiving base 431 is internally constructed with a conveying passage 434, and the conveying passage 434 is respectively communicated with a feeding pipe 435 and a discharging opening 436 at the two ends. The feeding pipe 435 of the conveying passage 434 is connected to the feeding track 42 of the output end of the vibration disc, the conveying cylinder 433 is used to push the nail column 100 in the conveying passage 434 to the discharging opening 436, and the output end of the discharging cylinder 432 is directed to the discharging opening 436. In this scheme, the vibration disc outputs the nail columns 100 arranged in a specified manner on the output track, and sends them into the conveying passage 434 of the receiving base 431 through the feeding pipe 435, then pushes the nail columns 100 to the discharging opening 436 by the conveying cylinder 433, and finally presses the nail columns 100 into the receiving groove 4431 of the swing rod 443 by the discharging cylinder 432.

[0050] As Figure 2As shown, the nail chain welding machine 2 comprises a punch head 21 and a punch base 22. The punch head 21 comprises a punch driving component 212 arranged on a punch fixed base 211, and an upper conductive seat 213 connected to the output end of the punch driving component 212, and the upper conductive seat 213 is provided with clamping devices for clamping and fixing the nail column 100. The punch base 22 is provided with a lower conductive die 221 for positioning and placing the chain 200. The upper conductive seat 213 and the lower conductive die 221 are respectively connected to the positive and negative poles of the power supply, and the punch driving component 212 drives the upper conductive seat 213 to move close to or away from the lower conductive die 221. When the nail column 100 is supported on the chain, it is fixed by electric welding. The nail chain welding machine 2 comprises a punch head 21 and a punch base 22, the punch head 21 clamps and fixes the nail column 100 through the clamping devices, and the chain is positioned and placed on the lower conductive die 221. During welding, the punch driving component 212 drives the upper conductive seat 213 and the nail column 100 thereon to move downward until the nail column 100 is supported on the chain. At this time, the power supply is turned on, the nail column 100 is in contact with the chain and conducts electricity and generates heat, at this time the punch driving component 212 continues to press the nail column 100 for a certain stroke, so that the nail column 100 below is deformed and adheres to the chain, and the welding is completed. The above-mentioned nail chain welding machine 2 can use a cylindrical nail column 100 to weld on the chain to form a nail chain, thereby simplifying the structure of the nail column 100, reducing the production requirements of the nail column 100, facilitating material selection, and eliminating the need for alignment during welding. Further, the production efficiency is improved.

[0051] In further embodiments as shown in Figure 6 The clamping device comprises a fixed block 214 and a movable block 215 arranged on the upper conductive seat 213 respectively, and a clamping driving assembly connected to the movable block 215. The clamping driving assembly can drive the movable block 215 to move close to or away from the fixed block 214, and the clamping opening for fixing the nail column 100 is formed between the movable block 215 and the fixed block 214. In this scheme, based on the movement of the movable block 215 relative to the fixed block 214, the caliber of the clamping opening is adjusted for clamping or releasing the nail column 100. In a specific embodiment, the clamping driving assembly comprises a clamping base 216 arranged beside the upper conductive seat 213, a first linkage rod 217 hingedly connected to the middle part of the clamping base 216, and a clamping driving cylinder 218 connected to the output shaft of the first linkage rod 217. The other end of the first linkage rod 217 is connected to the movable block 215 through a push rod 219. When the clamping driving cylinder 218 is driven, it will drive the first linkage rod 217 to swing along the hinged end, so that the other end of the first linkage rod 217 moves, and then drives the movable block 215 to move relative to the fixed block 214 through the push rod 219.

[0052] As shown in the figure, the stamping base 22 is provided with conveying tracks on both sides for conveying the chain, and further comprises a lifting mechanism for driving the lower conductive die 221 to lift. During stamping and welding, the lifting mechanism drives the lower conductive die 221 to lift to the level of the conveying tracks on both sides. In this scheme, the lower conductive die 221 of the stamping base 22 is arranged on the lifting mechanism, so that the up-and-down movement of the lower conductive die 221 can be realized. During welding, the upper conductive base 213 and the nail column 100 thereon descend, and the lower conductive die 221 ascends, and realizes the butt welding at the position where it is leveled with the conveying tracks on both sides. The conveying tracks here convey the chain in the horizontal direction, and during the conveying of the chain, the lower conductive die 221 can descend to avoid interference with the conveying of the chain. In a specific embodiment, the lifting mechanism comprises a lifting jack 222 connected to the lower conductive die 221, and a lifting cylinder 223 connected to and driving the lifting jack 222. The output direction of the lifting cylinder 223 is horizontally arranged, and the stamping base 22 is hingedly provided with a second linkage rod 224, which is L-shaped, and the end corner of the second linkage rod 224 is hingedly connected to the stamping base 22, the output end of the lifting cylinder 223 is connected to one end of the second linkage rod 224, and the lower end of the lifting jack 222 is movably connected to the other arm of the second linkage rod 224. In this scheme, the lifting cylinder 223 drives the second linkage rod 224 to rotate relative to the hinge of the end corner, and in turn drives the lifting jack 222 and the lower conductive die 221 connected thereto to lift.

[0053] In a further scheme, the lower conductive die 221 is connected to a fine adjustment base, and the fine adjustment base is provided with an adjusting screw for adjusting the height of the lower conductive die 221. This scheme takes into account that the lower conductive die 221 is used to place the chain on one hand, and requires conduction on the other hand. Therefore, in actual production, a copper lower conductive die 221 is used, which will be worn during stamping and welding. Therefore, this scheme adjusts the height by the adjusting screw, so that the height of the lower conductive die 221 can be adjusted in real time, avoiding the height difference caused by wear, which reduces the welding strength of the nail column 100 and the chain.

[0054] As Figure 7As shown, the nail chain welding machine 2 further comprises a pressing device for positioning and pressing the chain on the lower conductive die 221, which comprises two pressing components for pressing the chain to be welded at the same time, and the two pressing components are arranged on both sides of the chain conveying direction. In this scheme, two pressing components are used to press the two sides of the same chain, so as to stably fix the chain on the lower conductive die 221. In a specific scheme, the pressing device comprises two sets of pressing mechanisms 5, which comprise a pressing base 51 fixed on the stamping base 22, a pressing shaft 52, a pressing rod 53 and a pressing cylinder 54. The pressing base 51 comprises a sleeve part 55, the pressing shaft 52 is arranged in the sleeve part 55, the output end of the pressing cylinder 54 is connected to the pressing shaft 52 through a connecting rod 56, and the other end of the pressing shaft 52 extends to the side of the stamping station, and the pressing rod 53 is connected to the end of the pressing shaft 52 adjacent to the stamping station. In this scheme, when the pressing mechanism 5 works, the pressing shaft 52 is driven to rotate by the pressing cylinder 54, and then the pressing rod 53 on the working end of the pressing shaft 52 is rotated by a certain angle and is pressed on the chain, and the pressing rods 53 on both sides press the two sides of the same chain at the same time, so that the chain can be fixed in position.

[0055] The operation process of the nail chain automatic welding equipment is as follows:

[0056] 1. After the chain 200 is sent out from the barrel 30, it is guided into the box 1 through the guide device 33.

[0057] 2. The chain is driven to convey to the first nail chain welding machine 2 through the chain driving device 32, and the nail column feeding device 4 sends the nail column 100 to the nail chain welding machine 2, and the clamping device of the upper conductive seat 213 clamps and fixes the nail column 100.

[0058] 3. The upper conductive seat 213 and the nail column 100 thereon descend, the lower conductive die 221 ascends, and the upper conductive seat 213 and the lower conductive die 221 are in abutment at a position in line with the conveying tracks on both sides; then the upper conductive seat 213 and the lower conductive die 221 are electrified, the nail column 100 is in contact with the chain and is heated by conduction, at this time the stamping driving part 212 continues to press the nail column 100 by a certain stroke, so that the nail column 100 is deformed below and adheres to the chain, and the welding is completed.

[0059] 4. The chain that completes the welding of one nail column 100 continues to convey, passes through the chain adjusting device 31, and is sent to the second nail chain welding machine 2, and the above steps are repeated to complete the welding of the second nail column 100 in the second nail chain welding machine 2.

[0060] 5. The chain continues to convey to the cutting device 34, and the cutting device 34 intermittently cuts the chain based on the counting of the counting conveying wheel, so as to segment and discharge the chain.

[0061] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary, and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application without departing from the principles and spirit of the present application.

Claims

1. A nail chain automatic welding device, comprising a box body (1), a nail chain welding machine (2) arranged in the box body (1), a chain conveying mechanism for conveying the chain, and a nail column feeding device (4) for feeding the nail column (100) to the nail chain welding machine (2); characterized in that: two groups of nail chain welding machines (2) are arranged in the box body (1) along the conveying direction of the chain, the chain conveying mechanism comprises a chain adjusting device (31) arranged between the two groups of nail chain welding machines (2), and chain driving devices (32) arranged on the front and rear sides of the chain adjusting device (31); the nail chain welding machine (2) comprises a stamping head (21) and a stamping base (22), the stamping head (21) and the stamping base (22) are arranged on the upper and lower sides of the conveying track formed by the chain conveying mechanism; the stamping head (21) comprises a stamping driving part (212) arranged on a stamping fixed base (211), and an upper electrically conductive seat (213) connected to the output end of the stamping driving part (212), the upper electrically conductive seat (213) is provided with a clamping device for clamping and fixing the nail column (100); the stamping base (22) is provided with a lower electrically conductive die (221) for positioning and placing the chain, and a lifting mechanism for driving the lower electrically conductive die (221) to lift; the upper electrically conductive seat (213) and the lower electrically conductive die (221) are respectively connected to the positive and negative poles of the power supply, and the stamping driving part (212) and the lifting mechanism respectively drive the upper electrically conductive seat (213) and the lower electrically conductive die (221) to relatively approach or move away from each other; during stamping and welding, the lifting mechanism drives the lower electrically conductive die (221) to lift to be flush with the conveying track on both sides thereof, the nail column (100) is supported on the chain and fixed by electric welding; the clamping device comprises a fixed block (214) and a movable block (215) arranged on the upper electrically conductive seat (213) respectively, and a clamping driving assembly connected to the movable block (215); the clamping driving assembly can drive the movable block (215) to approach or move away from the fixed block (214), and a clamping opening for fixing the nail column (100) is formed between the movable block (215) and the fixed block (214); the clamping driving assembly comprises a clamping base (216) arranged beside the upper electrically conductive seat (213), a first linkage rod (217) hingedly connected in the middle portion of the clamping base (216), and a clamping driving cylinder (218) with an output shaft connected to one end portion of the first linkage rod (217); the other end of the first linkage rod (217) is connected to the movable block (215) through a push rod (219). The pin column feeding device (4) comprises a receiving mechanism (43) supported on the end part of the feeding track (42), and a conveying swing mechanism (44) for receiving the pin column (100) from the discharging end of the receiving mechanism (43) and transporting the pin column (100) to the welding station; the conveying swing mechanism (44) comprises a rotating shaft (441), a swing rod (443) connected to the rotating shaft (441), and a supporting part provided on the swing rod (443); the swing rod (443) is provided with a receiving groove (4431) on the movable end, and the supporting end of the supporting part is arranged below the receiving groove (4431) as the bottom support of the receiving groove (4431); the swing rod (443) can rotate with the rotating shaft (441), when the receiving groove (4431) is on the discharging end of the receiving mechanism (43), the receiving mechanism (43) presses the pin column (100) into the receiving groove (4431); when the receiving groove (4431) is on the welding station, the supporting part ejects the pin column (100) in the receiving groove (4431); The conveying swing mechanism (44) further comprises a supporting driving part (444) acting on the supporting part; the supporting part is constructed as a supporting lever (445) hingedly connected in the middle to the swing rod (443), the driving end of the supporting lever (445) is below the connecting end of the swing rod (443), the driven end is below the receiving groove (4431) as the bottom support of the receiving groove (4431), and the driven end of the supporting lever (445) is provided with a supporting rod (446) extending into the inside of the receiving groove (4431); the rotating shaft (441) is a hollow rotating shaft (441), and the output end of the supporting driving part (444) passes through the hollow rotating shaft (441) to act on the driving end of the supporting part.

2. The nail chain automated welding apparatus according to claim 1, characterized by: The chain adjusting device (31) comprises an adjusting seat (311) and a lifting pulley (312) slidingly arranged on the adjusting seat (311), and the chain passes around the lifting pulley (312).

3. The nail chain automated welding apparatus of claim 1, wherein: The lifting mechanism comprises a lifting supporting rod (222) connected to the lower conductive die (221), and a lifting cylinder (223) connected to and driving the lifting supporting rod (222); the output direction of the lifting cylinder (223) is horizontally arranged, and a second linkage rod (224) is hingedly arranged on the stamping base (22), the second linkage rod (224) is L-shaped, the end corner of the second linkage rod (224) is hingedly arranged on the stamping base (22), the output end of the lifting cylinder (223) is connected to one end of the second linkage rod (224), and the lower end of the lifting supporting rod (222) is movably connected to the other arm of the second linkage rod (224).

4. The nail chain automated welding apparatus of claim 1, wherein: The lower conductive die (221) is connected to the fine adjustment base, and the fine adjustment base is provided with an adjusting screw for adjusting the height of the lower conductive die (221).

5. The nail chain automated welding apparatus of claim 1, wherein: The application further comprises a pressing device for positioning and pressing the chain on the lower conductive mold (221), the pressing device comprises two pressing components for pressing the chain links to be welded, and the two pressing components are arranged on both sides of the chain conveying direction; the pressing device comprises two groups of pressing mechanisms (5), the pressing mechanism (5) comprises a pressing base (51) fixed on the stamping base (22), a pressing shaft (52), a pressing rod (53) and a pressing cylinder (54); the pressing base (51) comprises a sleeve part (55), the pressing shaft (52) is arranged in the sleeve part (55), the output end of the pressing cylinder (54) is connected with the pressing shaft (52) through a connecting rod (56), and the other end of the pressing shaft (52) extends to the side of the stamping station; the pressing rod (53) is radially connected to the end of the pressing shaft (52) adjacent to the stamping station.

6. The nail chain automated welding apparatus of claim 1, wherein: The receiving mechanism (43) comprises a receiving base (431), a discharging cylinder (432) and a conveying cylinder (433), the receiving base (431) is internally provided with a conveying channel (434), and an inlet pipe (435) and an outlet (436) are communicated with the two ends of the conveying channel (434); the inlet pipe (435) of the conveying channel (434) is connected with the output end of the vibrating disc, the conveying cylinder (433) is used for pushing the nail column (100) in the conveying channel (434) to the outlet (436), and the output end of the discharging cylinder (432) faces the outlet (436).

7. The nail chain automated welding apparatus of claim 1, wherein: The chain conveying mechanism further comprises a guide device (33) arranged on the input side box (1) and used for guiding the chain into the box (1), and a cutting device (34) arranged outside the output side box (1); at least one group of chain driving devices (32) adopts a counting conveying wheel.

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