A continuous automatic feeding automatic resistance welding equipment

Abstract

The present invention discloses a continuous automatic unloading automatic resistance welding device, comprising a workbench, a feeding mechanism, a welding mechanism, a cutting mechanism, a pressing mechanism, a positioning mechanism and a pulling mechanism; the feeding mechanism is arranged on one side of the workbench, and the welding mechanism, the cutting mechanism, the pressing mechanism, the positioning mechanism and the pulling mechanism are fixedly arranged on the workbench in sequence from the feeding mechanism to the other side. The continuous automatic unloading automatic resistance welding device can greatly reduce the errors caused by manual operation by automatically unwinding and automatically welding, and greatly improve the production efficiency; at the same time, it reduces the missing rate of surface treatment products, and the quality of continuous metal terminal surface treatment products can be greatly improved, thereby reducing the surface treatment production cost of continuous metal materials.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to a continuous automatic material discharge automatic resistance welding equipment. Background Art

[0002] In the process of continuous roll surface treatment production line in the field of electronics industry, first of all, the surface treatment materials should be continuously introduced into the surface treatment production line through the unwinding machine. With the rapid development of the electronics industry, many continuous metal electronic products are constantly developing towards miniaturization and micro-miniaturization, and the processing speed requirements of high-speed continuous surface treatment production lines are getting higher and higher; in actual surface treatment production, when the end of the previous roll of metal material and the head of the next roll are connected, the following problems may occur when manual operation is used:

[0003] 1. The surface treatment production line is automatically shut down due to the failure of the joint operation, which makes all products in the surface treatment production line scrapped, causing great losses and reducing the production capacity of the production line;

[0004] 2. During the joint operation, due to improper operation, the raw materials may scratch the operator's hands and cause work-related accidents;

[0005] 3. During the high-speed operation of the surface treatment production line, in order to prevent operational errors, the manual joint operation of the product requires sufficient time, which makes the design requirements of the buffer machine higher and higher, and the equipment structure is becoming more and more complicated;

[0006] 4. The smaller and thinner the continuous terminal product material is, the easier it is to deform during manual joint operation, affecting product quality;

[0007] 5. The manual joints of the product are not firm and are easy to fall off during high-speed production, causing downtime and production stoppage;

[0008] 6. The manual joint has poor precision, and the product positioning holes cannot overlap accurately, resulting in the mismatch between the surface treatment product and the precious metal fixture, causing the position of the precious metal coating to shift, resulting in product scrapping;

[0009] 7. The product joints are firmly connected with rivets at the location of the positioning hole and connecting belt, but the connection of the metal terminal part is not very firm, which causes the terminals to disperse and scrape against the guiding fixture in the process groove, which will cause the product to deform and lead to downtime and production.

[0010] In view of the above problems to be solved, the continuous metal terminals made of thin copper, thin copper alloy and thin stainless steel strips as raw materials through precision stamping, and the operation of using thin copper, thin copper alloy and thin stainless steel strips to replace manual operation with reel-type unwinding machines have been continuously studied and improved. At the same time, the joint operation between metal material reels has also been continuously improved. However, in the research and development and production design of the fully automatic continuous reel surface treatment production line, there are still many problems in the unwinding machine and product joint welding equipment that have not been solved, and no patent documents related to solving these problems have been reported.

[0011] In Japanese Patent Document 1 (Publication No. JP5704978B2), a method for welding aluminum and steel using a resistance welding device is disclosed. However, this technology is only practical for a single component, and there is no corresponding automated operation such as automatic pressing and automatic shearing, so it is not applicable to a continuously running roll-type surface treatment production line.

[0012] In Japanese Patent Document 2 (Publication No. JP2011-519727A), a method is disclosed for pre-fixing various metals by rivet inlay and then welding them with resistance welding equipment. The method is to connect two or more components together during the operation by welding and plastic deformation during the riveting operation. The welded rivet connection can fix one or more components to the front of the basic component without drilling holes in the basic component. Although this method has a good effect on the welding of loose parts, the welding operation of continuously produced metal terminal materials is relatively complicated and cannot be promoted and applied.

[0013] In Japanese Patent Document 3 (Publication No. JP6710765B2), a device, manufacturing and method for welding different materials are disclosed, which provides and maintains resistance spot welding using riveting welding zippers and a device and method for promoting such a joining process. The possibility of promoting application in a production line of continuous metal terminal materials is very low.

[0014] Japanese Patent Document 4 (Publication No. JP2020-70366A) discloses a high-frequency induction heating adhesive sheet and a method for joining tubes that can shorten the time for connecting resin-containing tubes. However, the high-frequency induction equipment is expensive, which limits its application in continuous roll-to-roll surface treatment production lines.

[0015] In Chinese Patent Document 5 (Publication No. CN206305604U), an ultrasonic spot welding machine material joining device is disclosed, which performs joint welding processing on the end of the previous roll of surface treated metal material and the head of the next roll in the production of roll surface treatment production line, thereby ensuring the stability of product quality and improving the surface treatment production efficiency.

[0016] Patent documents 1 to 4 provide various methods for joining metal material discs, however, all design principles and their actual operation cannot meet the requirements of automatic joint operation of the fully automatic continuous roll-to-roll surface treatment production line. Research and development of production equipment for automatic unloading and automatic welding of metal material joints has become the biggest difficulty in completing the production of fully automatic continuous roll-to-roll surface treatment production line equipment, and is a major issue that needs to be urgently resolved in the surface treatment industry.

[0017] In the previous report of Chinese patent document 5 (publication number CN206305604U), our company provided an ultrasonic spot welding machine material connection device, which performs joint welding processing on the end of the previous roll and the front end of the next roll of surface treatment metal materials in the production of continuous roll surface treatment production line. It can ensure the stability of product quality and improve the surface treatment production efficiency. However, the welding process is still a manual operation, so there are still some problems in the joint operation of continuous terminal product materials that have not been solved, which greatly limits the application of this welding equipment in the fully automatic continuous surface treatment production line. Summary of the invention

[0018] The technical problem to be solved by the present invention is: in order to solve the problems existing in the above-mentioned background technology, a continuous automatic unwinding automatic resistance welding device is provided, which automatically runs to ensure the continuity and integrity of various metal materials in automatic continuous production, and ensures the stability and uniformity of the surface-treated metal coating at a high speed of tens of meters per minute. In the surface treatment production process of continuous metal materials, automatic unwinding and automatic resistance welding replace manual operation, which can greatly reduce the errors caused by manual operation and greatly improve production efficiency; at the same time, the missing rate of surface treatment products is reduced, and the quality of continuous metal terminal surface treatment products can be greatly improved, thereby reducing the surface treatment production cost of continuous metal materials.

[0019] The technical solution adopted by the present invention to solve its technical problems is: a continuous automatic unloading automatic resistance welding equipment, including a workbench, a feeding mechanism for conveying a material strip, a welding mechanism for welding the material strip, a cutting mechanism for cutting the material strip, a pressing mechanism for pressing the material strip, a positioning mechanism for fixing the position of the material strip and a traction mechanism for driving the material strip to run; the feeding mechanism is arranged on one side of the workbench, and the welding mechanism, the cutting mechanism, the pressing mechanism, the positioning mechanism and the traction mechanism are fixedly arranged on the workbench in sequence from the feeding mechanism to the other side.

[0020] To further specifically define, in the above technical solution, the feeding mechanism includes a feeding base, a pressure plate and a feeding cylinder; the feeding base is horizontally fixed on one side of the workbench; the feeding cylinder is vertically fixed on the feeding base along the conveying direction of the material belt; the end of the feeding cylinder fixes the pressure plate, and the pressure plate is in contact with the material belt.

[0021] To further specifically define, in the above technical solution, the welding mechanism includes a first welding needle and a first welding needle fixing seat; the first welding needle fixing seat is fixedly arranged on the feeding base and is located on one side of the feeding cylinder; the first welding needle is horizontally inserted on the first welding needle fixing seat.

[0022] To further specifically define, in the above technical solution, the cutting mechanism comprises a horizontal cutting component and a vertical cutting component; the horizontal cutting component and the vertical cutting component are relatively fixedly arranged on the workbench.

[0023] To further specifically define, in the above technical solution, the horizontal cutting assembly includes a first panel, a first cylinder, a second cylinder, a fixed seat and a press cutting and welding module; the first cylinder is vertically arranged on the first panel; the second cylinder is horizontally arranged on one side of the first cylinder; the telescopic end of the second cylinder passes through the fixed seat and is fixedly connected to one side of the press cutting and welding module; a first guide rail is arranged in parallel on the first panel, and the lower end of the press cutting and welding module is slidably arranged on the first guide rail through a first slider.

[0024] To further specifically define, in the above technical scheme, the pressing and cutting welding module includes a first sliding seat, a connecting piece, a substrate, a second welding pin, a second welding pin fixing seat, a pressing block, a positioning pin and a first cutting knife; the substrate is vertically fixed on the first sliding seat, and one end of the positioning pin passes through the substrate and fixes the connecting piece; the other end of the positioning pin passes through the substrate and extends between the pressing blocks; the second welding pin is inserted in parallel on one side of the positioning pin; the pressing block is symmetrically arranged on the first sliding seat and located on one side of the substrate; the second welding pin is fixed to the inner side of the pressing block through the second welding pin fixing seat; the first cutting knife is fixed on the outer side wall of the pressing block.

[0025] To further specifically define, in the above technical solution, the vertical cutting assembly includes a third cylinder, a support seat, a second cutting knife, a protective cover, a second guide rail and a second slider; the support seat is fixedly arranged on the workbench, and the third cylinder is vertically fixedly arranged on the upper end of the support seat; the telescopic end of the third cylinder fixes the second cutting knife, and the protective cover is fixedly arranged on the upper end of the second cutting knife; the second guide rail is fixedly arranged on the inner side of the support seat along the height direction, and the second cutting knife is slidably arranged on the second guide rail through the second slider.

[0026] To further specifically define, in the above technical solution, the positioning mechanism includes a second panel, a second sliding seat, a third guide rail, a photoelectric sensor, a first limit block, a ceramic needle avoidance wheel and a ratchet; the second panel is arranged in parallel at the upper end of the first panel; the third guide rail is arranged in parallel on the second panel, and the second sliding seat is slidably arranged on the third guide rail; the ratchet is horizontally arranged at the upper end of the second sliding seat, and the lower end of the ratchet is externally connected to a motor; photoelectric sensors are fixed on one side of the ratchet and one side of the second sliding seat; the first limit blocks are fixedly arranged at both ends of the third guide rail; the ceramic needle avoidance wheel is arranged on one side of the ratchet; and a material belt is transmitted between the ratchet and the ceramic needle avoidance wheel.

[0027] To further specifically define, in the above technical solution, the traction mechanism includes a traction cylinder, a traction wheel and a pressure wheel; the traction cylinder is vertically arranged at the lower end of the second panel; the output end of the traction cylinder passes through the rear end of the second panel to fix the traction wheel, and the pressure wheel is fixed on one side of the traction wheel; the transmission and traction of the material strip is realized between the traction wheel and the pressure wheel.

[0028] To further specifically define, in the above technical solution, a fourth guide rail is arranged in parallel on the first panel, and the second panel is slidably arranged on the fourth guide rail via a third slider.

[0029] The beneficial effects of the present invention are as follows: the continuous automatic material discharge automatic resistance welding equipment proposed by the present invention has the following advantages:

[0030] 1. Solve the problem of slow manual material connection between the front and rear discs during electroplating production, which affects production efficiency; reduce personnel costs and enable one person to operate multiple machines;

[0031] 2. Solve the safety problems of manual material handling and reduce work-related accidents;

[0032] 3. Solve the feasibility of using one machine to produce multiple products;

[0033] 4. Reduce costs, remove buffer machines, and reduce the tension of the entire electroplating line to ensure product quality and save site space;

[0034] 5. Solve the problem that when the upper and lower layers of materials are connected together, the deviation and displacement will cause poor process and alarm and stop the line in the later stage of the production line;

[0035] 6. Combined with feeding mechanism, welding mechanism, cutting mechanism, pressing mechanism, positioning mechanism, traction mechanism and detection mechanism, automatic operation ensures the continuity and integrity of various metal materials in automatic continuous production, and ensures the stability and uniformity of surface treated metal coating at a high speed of tens of meters per minute;

[0036] 7. In the process of continuous metal material surface treatment, automatic unwinding and automatic resistance welding can replace manual operation, which can greatly reduce the errors caused by manual operation and greatly improve production efficiency;

[0037] 8. At the same time, the missing rate of surface treatment products is reduced, and the quality of continuous metal terminal surface treatment products can be greatly improved, thereby reducing the production cost of surface treatment of continuous metal materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 It is a schematic diagram of the structure of the present invention;

[0040] Figure 2 It is a schematic diagram of the structure of the cutting mechanism, the pressing mechanism, the positioning mechanism and the traction mechanism on the workbench;

[0041] Figure 3 It is a structural diagram of the feeding mechanism and the welding mechanism;

[0042] Figure 4 It is a schematic diagram of the structure of cutting by the horizontal cutting component and the vertical cutting component;

[0043] Figure 5 It is a schematic diagram of the structure of the horizontal cutting assembly, welding mechanism and feeding mechanism;

[0044] Figure 6 is a schematic diagram of the structure of the vertical cutting component;

[0045] Figure 7 It is a schematic diagram of the structure of the horizontal cutting component;

[0046] Figure 8 It is a structural schematic diagram of the pressing, cutting and welding module;

[0047] Fig. 9 It is a structural schematic diagram of the positioning mechanism;

[0048] Fig.10 It is a structural diagram of the traction mechanism;

[0049] Fig.11 It is a partial structural diagram of the material strip.

[0050] The numbers in the accompanying drawings are: 1, workbench, 2, feeding base, 3, pressing plate, 4, feeding cylinder, 5, material belt, 6, first welding needle, 7, first welding needle fixing seat, 8, first panel, 9, first cylinder, 10, second cylinder, 11, fixing seat, 12, pressing cutting and welding module, 13, first guide rail, 14, first sliding seat, 15, connecting piece, 16, substrate, 17, second welding needle, 18, second welding needle fixing seat, 19, pressing block, 20, positioning needle, 21, first cutting knife, 22, third cylinder, 23, supporting seat, 24, second cutting knife, 25, protective cover, 26, second guide rail, 27, second slider, 30, second surface Plate, 31. second sliding seat, 32. third guide rail, 33. photoelectric sensor, 34. first limit block, 35. ceramic needle avoidance wheel, 36. ratchet, 37. traction cylinder, 38. traction wheel, 39. pressure wheel, 40. fourth guide rail, 41. pressing cylinder, 42. pressing block, 42-1. fixed pressing block, 42-2. movable pressing block, 43. guide wheel, 44. fourth cylinder, 45. fifth cylinder, 46. fifth guide rail, A. feeding mechanism, B. welding mechanism, C. cutting mechanism, C-1. horizontal cutting component, C-2. vertical cutting component, D. pressing mechanism, E. positioning mechanism, F. traction mechanism, G. detection mechanism. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms “one side”, “the other side”, “both sides”, “between”, “middle”, “upper end”, “lower end”, etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] See Figures 1 to 11 A continuous automatic unloading automatic resistance welding device of the present invention comprises a workbench 1, a feeding mechanism A for conveying a material strip 5, a welding mechanism B for welding the material strip 5, a cutting mechanism C for cutting the material strip 5, a pressing mechanism D for pressing the material strip 5, a positioning mechanism E for fixing the position of the material strip 5 and a traction mechanism F for driving the material strip 5 to run; the feeding mechanism A is arranged on one side of the workbench 1, and the welding mechanism B, the cutting mechanism C, the pressing mechanism D, the positioning mechanism E and the traction mechanism F are fixedly arranged on the workbench 1 in sequence from the feeding mechanism A to the other side.

[0055] The feeding mechanism A includes a feeding base 2, a pressing plate 3 and a feeding cylinder 4; the feeding base 2 is horizontally fixedly arranged on one side of the workbench 1; the feeding cylinder 4 is vertically fixedly arranged on the feeding base 2 along the conveying direction of the material belt 5; the pressing plate 3 is fixed at the end of the feeding cylinder 4, and the pressing plate 3 is in contact with the material belt 5.

[0056] The welding mechanism B includes a first welding needle 6 and a first welding needle fixing seat 7 ; the first welding needle fixing seat 7 is fixedly arranged on the feeding base 2 and is located on one side of the feeding cylinder 4 ; the first welding needle 6 is horizontally inserted on the first welding needle fixing seat 7 .

[0057] The cutting mechanism C includes a horizontal cutting component C-1 and a vertical cutting component C-2; the horizontal cutting component C-1 and the vertical cutting component C-2 are relatively fixedly arranged on the workbench 1.

[0058] The horizontal cutting component C-1 includes a first panel 8, a first cylinder 9, a second cylinder 10, a fixed seat 11 and a pressing cutting and welding module 12; the first cylinder 9 is vertically arranged on the first panel 8; the second cylinder 10 is horizontally arranged on one side of the first cylinder 9; the telescopic end of the second cylinder 10 passes through the fixed seat 11 and is fixedly connected to one side of the pressing cutting and welding module 12; a first guide rail 13 is arranged parallel to the first panel 8, and the lower end of the pressing cutting and welding module 12 is slidably arranged on the first guide rail 13 through a first slider.

[0059] The pressing and cutting welding module 12 includes a first sliding seat 14, a connecting piece 15, a substrate 16, a second welding needle 17, a second welding needle fixing seat 18, a pressing block 19, a positioning needle 20 and a first cutting knife 21; the substrate 16 is vertically fixed on the first sliding seat 14, one end of the positioning needle 20 passes through the substrate 16 and fixes the connecting piece 15; the other end of the positioning needle 20 passes through the substrate 16 and extends between the pressing blocks 19; the second welding needle 17 is inserted in parallel on one side of the positioning needle 20; the pressing block 19 is symmetrically arranged on the first sliding seat 14 and is located on one side of the substrate 16; the inner side of the pressing block 19 fixes the second welding needle 17 through the second welding needle fixing seat 18; the first cutting knife 21 is fixedly arranged on the outer wall of the pressing block 19.

[0060] The vertical cutting assembly C-2 includes a third cylinder 22, a support seat 23, a second cutting knife 24, a protective cover 25, a second guide rail 26 and a second slider 27; the support seat 23 is fixedly arranged on the workbench 1, and the third cylinder 22 is vertically fixedly arranged on the upper end of the support seat 23; the telescopic end of the third cylinder 22 fixes the second cutting knife 24, and the protective cover 25 is fixedly arranged on the upper end of the second cutting knife 24; the second guide rail 26 is fixedly arranged on the inner side of the support seat 23 along the height direction, and the second cutting knife 24 is slidably arranged on the second guide rail 26 through the second slider.

[0061] The positioning mechanism includes a second panel 30, a second sliding seat 31, a third guide rail 32, a photoelectric sensor 33, a first limit block 34, a ceramic needle avoidance wheel 35 and a ratchet 36; the second panel 30 is arranged in parallel at the upper end of the first panel 8; the third guide rail 32 is arranged in parallel on the second panel 30, and the second sliding seat 31 is slidably arranged on the third guide rail 32; the ratchet 36 is horizontally arranged at the upper end of the second sliding seat 31, and the lower end of the ratchet 36 is externally connected to a motor; the photoelectric sensor 33 is fixed on one side of the ratchet 36 and one side of the second sliding seat 31; the first limit blocks 34 are fixed at both ends of the third guide rail 32; the ceramic needle avoidance wheel 35 is arranged on one side of the ratchet 36; the material belt 5 is transmitted between the ratchet 36 and the ceramic needle avoidance wheel 35.

[0062] The traction mechanism F includes a traction cylinder 37, a traction wheel 38 and a pressure wheel 39; the traction cylinder 37 is vertically arranged at the lower end of the second panel 30; the output end of the traction cylinder 37 passes through the rear end of the second panel 30 to fix the traction wheel 38, and the pressure wheel 39 is fixed on one side of the traction wheel 38; the traction wheel 38 and the pressure wheel 39 realize the transmission and traction of the material belt 8.

[0063] A fourth guide rail 40 is arranged in parallel on the first panel 8, and the second panel 30 is slidably arranged on the fourth guide rail 40 via a third slider. A fourth cylinder 44 is fixedly arranged in parallel on one side of the fourth guide rail 40 on the second panel 30.

[0064] In the present application, the pressing mechanism D includes a pressing cylinder 41 and a pressing block 42; the pressing cylinder 41 is fixedly arranged on the second panel 30, and the pressing block 42 includes a fixed pressing block 42-1 and a movable pressing block 42-2; the fixed pressing block 42-1 is fixedly arranged at the telescopic end of the pressing cylinder 41; the fixed pressing block 42-2 is arranged opposite to the movable pressing block 42-1, and the fixed pressing block 42-1 and the movable pressing block 42-2 are used to clamp the material strip 5.

[0065] One side of the pressing mechanism D is provided with guide wheels 43 opposite to each other on the second panel 30 , and the guide wheels 43 are used for guiding and transmitting the material belt 5 .

[0066] A fifth cylinder 45 is also provided on the workbench 1 at one side of the first panel 8 , and the telescopic end of the fifth cylinder 45 is connected to one side of the first panel 8 ; the lower end of the first panel 8 is slidably provided on the workbench 1 through a slider, and a fifth guide rail 46 is provided parallel to the workbench 1 .

[0067] A detection mechanism G is also arranged between the traction mechanism F and the positioning mechanism E. The detection mechanism G is equipped with an optical fiber, which counts through the process holes on the material belt 5. When the optical fiber count is about to reach the length of a roll of material, the optical fiber amplifier gives a signal to the traction mechanism F and the pressing mechanism D, so that the traction mechanism F stops rotating, and the cylinder of the pressing mechanism D moves forward to press the material belt, preparing for subsequent actions.

[0068] See Figure 1 and Figure 2 After receiving the signal from the detection mechanism G, first, the pressing mechanism D presses the material strip 5, and the horizontal cutting component C-1 and the vertical cutting component C-2 cut the tailings. After the cutting is completed, the second cylinder 10 and the fourth cylinder 44 are retracted. Under the action of the fifth cylinder 45, the first layer panel 8 and the second layer panel 30 are moved to the designated position as a whole, and then the second cylinder 10 is pushed again. At this time, the first cylinder 9 will push downward, and the stroke of the second cylinder 10 is limited to a certain extent, so that the stroke of the second cylinder 10 is greatly different from the stroke during cutting.

[0069] See Figure 3It is a structural diagram of the feeding mechanism A and the welding mechanism B. When the feeding base 2 reaches the designated position under the push of the feeding cylinder 4, the welding gun in the cutting mechanism C is connected to the first welding pin 6 on the figure, and the electric welding machine is connected. The strong current causes the material strip 5 to be welded by instantly generating high temperature. Before welding, the positioning pin 20 on the cutting mechanism C will first position the new and old material strip products through the process holes on the material strip 5 product under the action of the spring to prevent misalignment during welding; the feeding cylinder 4 is when the employee puts the spare material strip on the material collection and release, and manually puts the material strip product on the ceramic pin. At this time, the feeding cylinder 4 is in the working state. When the welding is completed, a signal will be sent to the feeding cylinder 4, and the feeding cylinder 4 will return to the reset state until the roll of material on the roll plate is completed, and the feeding cylinder 4 will return to the working state from the reset state.

[0070] See Figure 6 It is a structural diagram of the vertical cutting assembly. After the detection mechanism G gives a signal, the pressing mechanism D presses the material strip 5 product, and the cutting mechanism C, under the push of the third cylinder 22, moves the second cutting knife 24 to the designated position with the help of the second guide rail 26 to wait for the cutting by the cutting mechanism C-2. After the horizontal cutting assembly C-1 and the vertical cutting assembly C-2 cut the tail of the material strip 5, the third cylinder 22 returns to the reset state and waits for the next signal. The protective cover is set to prevent the material strip product from being cut by the knife due to improper operation of the operator or other reasons during the cutting process or operation.

[0071] See Figure 7 , the fourth cylinder 44 is in working state at the beginning. After receiving the signal of the detection mechanism G and completing the action after pressing and cutting, the fourth cylinder 44 is retracted. When performing the next action welding, the entire panel is driven by the cylinder on the next layer of the panel to move to the specified position, and then the fourth cylinder 44 returns to the working state again, until the next cycle of the detection mechanism G completes the pressing and cutting, and then the fourth cylinder 44 is retracted again. The limit plate is equipped with a cylinder buffer, and a limit block is installed at the bottom of the first layer of the panel. When the limit block contacts the buffer, it is the limit position of the cylinder. After the detection mechanism G gives a signal, and the pressing mechanism D presses the material strip, the pressing and cutting welding module 12 moves in the direction of the material strip 5 under the push of the second cylinder 10 to perform pressing and cutting.

[0072] See Figure 8 It is a structural diagram of the pressing, cutting and welding module. When the cutting and welding module 12 is pushed by the second cylinder 10, the first cutting knife 21 will cut the tail of the material strip 5 pressed by the pressing mechanism D.

[0073] See Fig. 9The operation process of the positioning mechanism E is as follows: the ratchet 36 cooperates with the ceramic needle avoidance wheel 35 to detect the process holes on the material belt 5. The ceramic needle on the ratchet 36 passes through the process holes on the material belt 5 and cooperates with the groove on the ceramic needle avoidance wheel 35. While the two wheels are in contact, the ceramic needle will not damage the material belt 5. Secondly, it can perform a certain limit and correction function on the material belt 5. In this application, a photoelectric sensor 33 is set. A small metal piece is installed below the ratchet 36 and in the direction of the moving plate outlet. The photoelectric sensor 33 obtains the limit position of the entire detection mechanism G by sensing the metal piece; the bottom of the ratchet 36 is connected to an encoder. When the encoder works, it monitors the speed, position, angle, distance or count of the ratchet 36 movement to monitor the running distance of the material belt 5. In this application, a first limit block 34 is set to limit the slider on the third guide rail 32 to prevent the slider from falling off the third guide rail 32 during operation or under external factors. It is also equivalent to the two limit positions of the detection mechanism G.

[0074] See Fig.10 The structure diagram of the traction mechanism, the operation of the traction mechanism F is as follows: the traction wheel 38 is connected to the traction motor 37 and the reducer and other workpieces at the bottom, and then assisted by the pressure wheel 39, so that the material belt 5 moves forward at a corresponding speed through friction. The detection mechanism is equipped with an optical fiber, and counts through the process holes on the material belt 5. When the optical fiber count is about to reach the length of a roll of material, the optical fiber amplifier gives a signal to the traction mechanism F and the pressing mechanism D, so that the traction mechanism F stops rotating, and the pressing cylinder 41 of the pressing mechanism D moves forward to press the material belt 5 to prepare for subsequent actions; the guide wheel 43 allows the incoming material to move forward along the set route to prevent the material belt from deviating. There is a spring at the bottom to adjust the power of the optical signal; when the detection mechanism G detects that there is no material, the pressing cylinder 41 drives the movable pressing block 42-2 to move forward, and squeezes the fixed pressing block 42-1 on the other side of the material to press the material belt 5.

[0075] See Fig.11 It is a schematic diagram of a part of the structure of the material strip. Process holes are set on the upper and lower parts of the material strip 5, and the positions have been circled in the figure.

[0076] The operating principle of this continuous automatic unloading automatic resistance welding equipment is as follows:

[0077] During continuous surface treatment production, when the detection mechanism G of the resistance welding machine detects that there is no material, the traction mechanism F stops rotating. At this time, the pressing mechanism D clamps the material strip 5, and the respective cylinders respectively push the vertical cutting component C-2 to move vertically and the horizontal cutting component C-1 to move perpendicular to the moving direction of the material strip 5 to cut the tail material. After cutting, the horizontal cutting component C-1 and the vertical cutting component C-2 return to their original positions. After a fixed time, the welding mechanism B moves to the feeding mechanism A and the welding mechanism B driven by the cylinder to perform resistance welding. After the welding is completed, the traction mechanism F starts to rotate and drives the material strip 5 to operate normally while the welding mechanism B is reset. After welding, the positioning mechanism E detects the process holes through the ratchet 36 to detect the welding effect. The problem of hole misalignment during welding is monitored by the detection mechanism G through optical fiber, and a material replacement cycle is completed.

[0078] Compared with the traditional welding machines on the market, this application solves the following problems:

[0079] It requires skilled personnel to manually connect the materials, which takes a long time and requires the addition of a buffer machine. It is also unsafe and prone to work-related accidents. Because the product has to pass through the buffer machine, there are requirements for the product shape and poor compatibility. When the personnel operate the connection, the two superimposed products are prone to shifting, affecting production and quality. The connection of the reel-type products produced by the electroplating line causes problems such as poor safety, efficiency, compatibility and easy shifting.

[0080] The beneficial effect of this application is that the traction mechanism F, the pressing mechanism D, the cutting mechanism C, the welding mechanism B, the feeding mechanism A, the positioning mechanism E and the detection mechanism G automatically operate to ensure the continuity and integrity of various metal materials in automatic continuous production, and to ensure the stability and uniformity of the surface treated metal coating at a high speed of tens of meters per minute. In the surface treatment production process of continuous metal materials, automatic unwinding and automatic resistance welding replace manual operation, which can greatly reduce the errors caused by manual operation and greatly improve production efficiency; at the same time, the missing rate of surface treated products is reduced, and the quality of continuous metal terminal surface treatment products can be greatly improved, thereby reducing the surface treatment production cost of continuous metal materials.

[0081] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A continuous automatic unloading automatic resistance welding equipment, characterized in that: The invention comprises a workbench (1), a feeding mechanism (A) for conveying a material strip (5), a welding mechanism (B) for welding the material strip (5), a cutting mechanism (C) for cutting the material strip (5), a pressing mechanism (D) for pressing the material strip (5), a positioning mechanism (E) for fixing the position of the material strip (5), and a traction mechanism (F) for driving the material strip (5) to move; the feeding mechanism (A) is arranged on one side of the workbench (1), and the welding mechanism (B), the cutting mechanism (C), the pressing mechanism (D), the positioning mechanism (E), and the traction mechanism (F) are fixedly arranged on the workbench (1) in sequence from the feeding mechanism (A) to the other side; The cutting mechanism (C) comprises a horizontal cutting component (C-1) and a vertical cutting component (C-2); the horizontal cutting component (C-1) and the vertical cutting component (C-2) are relatively fixedly arranged on the workbench (1); The horizontal cutting assembly (C-1) comprises a first panel (8), a first cylinder (9), a second cylinder (10), a fixing seat (11) and a pressing cutting and welding module (12); the first cylinder (9) is vertically arranged on the first panel (8); the second cylinder (10) is horizontally arranged on one side of the first cylinder (9); the telescopic end of the second cylinder (10) passes through the fixing seat (11) and is fixedly connected to one side of the pressing cutting and welding module (12); a first guide rail (13) is arranged in parallel on the first panel (8), and the lower end of the pressing cutting and welding module (12) is slidably arranged on the first guide rail (13) via a first slider; The positioning mechanism (E) comprises a second panel (30), a second sliding seat (31), a third guide rail (32), a photoelectric sensor (33), a first limit block (34), a ceramic needle avoidance wheel (35) and a ratchet (36); the second panel (30) is arranged in parallel at the upper end of the first panel (8); the third guide rail (32) is arranged in parallel on the second panel (30), the second sliding seat (31) is slidably arranged on the third guide rail (32); the ratchet (36) 6) is horizontally arranged at the upper end of the second sliding seat (31), and the lower end of the ratchet wheel (36) is externally connected to a motor; a photoelectric sensor (33) is fixed on one side of the ratchet wheel (36) and one side of the second sliding seat (31); the first limit block (34) is fixedly arranged at both ends of the third guide rail (32); the ceramic needle avoidance wheel (35) is arranged on one side of the ratchet wheel (36); a material belt (5) is driven between the ratchet wheel (36) and the ceramic needle avoidance wheel (35); The feeding mechanism (A) comprises a feeding base (2), a pressing plate (3) and a feeding cylinder (4); the feeding base (2) is horizontally fixedly arranged on one side of the workbench (1); the feeding cylinder (4) is vertically fixedly arranged on the feeding base (2) along the conveying direction of the material belt (5); the end of the feeding cylinder (4) fixes the pressing plate (3), and the pressing plate (3) is in contact with the material belt (5).

2. The continuous automatic unloading automatic resistance welding equipment according to claim 1 is characterized in that: The welding mechanism (B) comprises a first welding needle (6) and a first welding needle fixing seat (7); the first welding needle fixing seat (7) is fixedly arranged on the feeding base (2) and is located on one side of the feeding cylinder (4); and the first welding needle (6) is horizontally inserted on the first welding needle fixing seat (7).

3. The continuous automatic unloading automatic resistance welding equipment according to claim 1 is characterized in that: The pressing and cutting welding module (12) comprises a first sliding seat (14), a connecting piece (15), a base plate (16), a second welding pin (17), a second welding pin fixing seat (18), a pressing block (19), a positioning pin (20) and a first cutting knife (21); the base plate (16) is vertically fixedly arranged on the first sliding seat (14); one end of the positioning pin (20) passes through the base plate (16) and fixes the connecting piece (15); the other end of the positioning pin (20) passes through the base plate (16) and extends between the pressing blocks (19); the second welding pin (17) is inserted in parallel on one side of the positioning pin (20); the pressing block (19) is symmetrically arranged on the first sliding seat (14) and located on one side of the base plate (16); the inner side of the pressing block (19) fixes the second welding pin (17) through the second welding pin fixing seat (18); and the first cutting knife (21) is fixedly arranged on the outer side wall of the pressing block (19).

4. The continuous automatic unloading automatic resistance welding equipment according to claim 1 is characterized in that: The vertical cutting assembly (C-2) comprises a third cylinder (22), a support seat (23), a second cutting knife (24), a protective cover (25), a second guide rail (26) and a second slider (27); the support seat (23) is fixedly arranged on the workbench (1), and the third cylinder (22) is vertically fixedly arranged on the upper end of the support seat (23); the telescopic end of the third cylinder (22) fixes the second cutting knife (24), and the protective cover (25) is fixedly arranged on the upper end of the second cutting knife (24); the second guide rail (26) is fixedly arranged on the inner side of the support seat (23) along the height direction, and the second cutting knife (24) is slidably arranged on the second guide rail (26) through the second slider (27).

5. The continuous automatic unloading automatic resistance welding equipment according to claim 1 is characterized in that: The traction mechanism (F) comprises a traction cylinder (37), a traction wheel (38) and a pressure wheel (39); the traction cylinder (37) is vertically arranged at the lower end of the second panel (30); the output end of the traction cylinder (37) passes through the rear end of the second panel (30) to fix the traction wheel (38), and the pressure wheel (39) is fixedly arranged on one side of the traction wheel (38); the traction wheel (38) and the pressure wheel (39) realize the transmission and traction of the material belt (5).

6. The continuous automatic unloading automatic resistance welding equipment according to claim 1 is characterized in that: A fourth guide rail (40) is arranged in parallel on the first panel (8), and the second panel (30) is slidably arranged on the fourth guide rail (40) via a third sliding block.

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