Wire drawing equipment for gas shield welding wire production

Abstract

The invention belongs to the technical field of wire drawing equipment, and mainly provides wire drawing equipment for gas shielded welding wire production. Comprising a base; the plurality of wire pulling assemblies are arranged on the base, and each wire pulling assembly comprises a wire pulling shell which is fixedly connected to the base; the number of the guide frames is two, the guide frames are fixedly connected in the wire pulling shell, and first telescopic rods are connected in the guide frames in a sliding mode; the two first molds are fixedly connected to the telescopic ends of the adjacent first telescopic rods respectively; the limiting ring is connected in the wire pulling shell in a sliding manner; the fixing frame is fixedly connected in the wire pulling shell, and the fixing frame is rotationally connected with an outer gear ring; and the multiple cleaning rods are connected to the outer gear ring in a sliding mode. The first telescopic rod drives the first mold to move and be separated from the welding wire, and then the cleaning rod is used for cleaning the first mold, so that the resistance of the welding wire in the moving process is reduced, and the probability that the welding wire is softened and fractured is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of wire drawing equipment, and in particular relates to a wire drawing equipment for producing gas shielded welding wire. Background Art

[0002] Welding wire is a metal wire welding material used to connect two parts. Among them, gas shielded welding wire (referred to as gas shielded welding wire) has the advantages of high welding efficiency and high welding quality. When producing gas shielded welding wire, it is necessary to use wire drawing equipment to draw the welding wire raw material step by step to gradually reduce the diameter of the welding wire until the diameter of the welding wire reaches the specified value. Since most gas shielded welding wires are solid structures, that is, they are composed of a single metal wire, during the drawing process, the oxide layer on the surface of the welding wire raw material and the debris generated during the drawing process will accumulate in the hole of the wire drawing die of the wire drawing equipment, causing the aperture of the wire drawing die to be relatively reduced, resulting in an increase in the resistance encountered by the welding wire when passing through the wire drawing die, thereby increasing the heat generated by the welding wire during the wire drawing process, and it is easy for the temperature of the wire drawing deformation position to be too high, resulting in softening or even breaking, affecting the normal production of the welding wire. Summary of the invention

[0003] The invention provides a wire drawing device for producing gas shielded welding wire, in order to solve the defect that the existing wire drawing device cannot clean the connection between the wire drawing die and the welding wire during the wire drawing process.

[0004] The technical implementation scheme of the present invention is: a wire drawing device for producing gas shielded welding wire, comprising: A base, wherein the base is provided with a plurality of winding assemblies, and the winding assemblies are used for pulling the welding wire to move; There are multiple wire pulling assemblies, all of which are arranged on the base. The wire pulling assemblies are used to stretch the welding wire. The wire pulling assemblies include: A wire extraction housing is fixedly connected to the base; There are two guide frames, both of which are fixed in the wire pulling housing, a first telescopic rod is slidably connected in the guide frame, and a first spring is arranged between the two; The first mold has two parts, each of which is fixed to the telescopic ends of the adjacent first telescopic rods; A limiting ring, slidably connected in the wire drawing housing, and used for fixing the positions of the two first molds; A fixed frame, fixedly connected in the wire pulling housing, and the fixed frame is rotatably connected with an external gear ring; A plurality of cleaning rods are provided, each of which is slidably connected to the outer toothed ring, and a first tension spring is arranged between the two; A power assembly is disposed in the wire pulling housing and is used to drive the outer gear ring to rotate; There are two limiting assemblies, both of which are arranged on the limiting ring and are used to fix the adjacent first molds respectively.

[0005] Preferably, symmetrically distributed inclined annular surfaces are provided in the limiting ring, and a side of the first mold close to the limiting ring is provided with a same inclined annular surface for increasing the contact area between the first mold and the limiting ring.

[0006] Preferably, the winding assembly comprises: A motor, arranged on the base; A bobbin is rotatably connected to the base, and an air clutch is provided between the bobbin and the output shaft of the motor, and the air clutch is used to control the rotation of the bobbin.

[0007] Preferably, the power assembly comprises: A transmission plate is slidably connected in the wire pulling housing, a second tension spring is arranged between the transmission plate and the wire pulling housing, a transmission rack is fixedly connected to the transmission plate, and the transmission rack is slidably connected to the fixing frame; The first gear is rotatably connected to the fixed frame, and the fixed frame is rotatably connected to the second gear. The first gear and the second gear are transmitted through a gearbox. The first gear is meshed with the transmission rack, and the second gear is meshed with the outer gear ring. The first gear is a one-way gear.

[0008] Preferably, the limiting component comprises: A limiting rod is slidably connected to the limiting ring, a second spring is arranged between the limiting ring and the limiting rod, a limiting hole is arranged on the first mold, and the limiting rod is used to fix the first mold; The limiting frame is fixedly connected to the limiting rod, the limiting frame is slidably connected to the limiting ring, a T-shaped frame is fixedly connected in the wire pulling housing, the T-shaped frame is provided with two first inclined surfaces, and the T-shaped frame is used to push the limiting frame to move.

[0009] Preferably, the end of the limiting rod close to the first mold is a ball head, and the depth of the limiting hole in the first mold is greater than the diameter of the ball head on the limiting rod, which is used to reduce the relative movement between the limiting rod and the first mold.

[0010] Preferably, the limit assembly further comprises: A second telescopic rod is fixedly connected in the wire pulling housing, the second telescopic rod is connected to the air clutch through an air pipe, the telescopic end of the second telescopic rod is fixedly connected to the limit ring, and a third spring is arranged between the limit ring and the wire pulling housing; The baffle is hinged to the fixing portion of the second telescopic rod, the second telescopic rod is provided with an air outlet, and the baffle is used to cover the air outlet of the second telescopic rod.

[0011] Preferably, the width of the baffle is greater than the diameter of the air outlet hole of the second telescopic rod, and a first through hole is provided on the baffle, the diameter of the first through hole on the baffle is smaller than the diameter of the air outlet hole on the second telescopic rod, and the first through hole on the baffle is connected to the air outlet hole of the second telescopic rod, so as to reduce the flow area of ​​the air outlet hole of the second telescopic rod.

[0012] As a preferred embodiment, it also includes: The conversion mechanism, the number of which is the same as the number of the wire pulling shells, is respectively arranged in adjacent wire pulling shells, and the conversion mechanism is used to replace the first mold, and the conversion mechanism includes: There are two elastic telescopic rods, both of which are fixedly connected to the wire pulling housing, and the telescopic ends of the elastic telescopic rods are fixedly connected to a second mold, and a limiting groove is provided on the second mold; A transmission telescopic rod is fixedly connected to the wire pulling housing, the transmission telescopic rod is connected to the two first telescopic rods through a connecting pipe, a one-way valve is arranged in the connecting pipe, the transmission telescopic rod is provided with an exhaust hole, the exhaust hole is used to slowly release the gas in the transmission telescopic rod, the telescopic part of the first telescopic rod is provided with a second through hole, and the one-way valve is arranged in the second through hole; A positioning component is arranged in the wire drawing housing and is used to limit the telescopic end of the transmission telescopic rod.

[0013] Preferably, the positioning component comprises: A limit plate is slidably connected in the wire pulling housing, the limit plate is fixedly connected to the telescopic end of the transmission telescopic rod, and the telescopic end of the transmission telescopic rod pushes the limit ring to move through the limit plate; A limit block is slidably connected in the wire pulling housing, the limit block is used to limit the movement of the limit plate, a second inclined surface is arranged on a side of the limit block close to the limit plate, and a fourth spring is arranged between the limit block and the wire pulling housing.

[0014] Compared with the prior art, the present invention has the following advantages: 1. When a large amount of impurities accumulate on the first mold, the first mold is driven to move and separate from the welding wire by the first telescopic rod, and then the first mold is cleaned by the cleaning rod to reduce the accumulation of impurities between the first mold and the welding wire, thereby reducing the resistance of the welding wire during movement and reducing the probability of softening and breaking of the welding wire.

[0015] 2. When the first mold is severely worn, the present invention separates the first mold from the welding wire by adjusting the position of the limit ring, and at the same time temporarily fits the second mold to the welding wire to replace the function of the first mold, thereby realizing continuous production of the welding wire and ensuring the production efficiency of the welding wire.

[0016] 3. After the friction resistance between the first mold and the welding wire increases, the present invention detects the resistance between the first mold and the welding wire after the first mold is reset by the transmission telescopic rod to determine whether the first mold is worn, thereby determining whether the first mold needs to be replaced to ensure the production efficiency of the welding wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the base, the spool and the wire pulling shell of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the motor, air clutch and limit ring of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the first mold, the outer gear ring and the cleaning rod of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the transmission plate, the transmission rack and the first gear of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the first mold, the limiting rod and the limiting frame of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the transmission rack, the first gear and the second gear of the present invention; Figure 8 is a three-dimensional structural cross-sectional view of the second telescopic rod and the baffle of the present invention; Fig. 9 It is a three-dimensional structural schematic diagram of the elastic telescopic rod, the second mold and the transmission telescopic rod of the present invention; Fig.10 It is a three-dimensional structural schematic diagram of the transmission telescopic rod, the limiting plate and the limiting block of the present invention; Fig.11 It is a three-dimensional structural cross-sectional view of the first telescopic rod of the present invention.

[0018] Figure markings: 1-base, 2-motor, 3-air clutch, 4-spool, 5-wire pulling shell, 6-guide frame, 7-first telescopic rod, 8-first mold, 9-limiting ring, 10-fixed frame, 11-external gear ring, 12-cleaning rod, 13-transmission plate, 14-transmission rack, 15-first gear, 16-second gear, 17-limiting rod, 18-limiting frame, 19-T-shaped frame, 20-second telescopic rod, 201-baffle, 21-elastic telescopic rod, 22-second mold, 23-transmission telescopic rod, 24-limiting plate, 25-limiting block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0020] A wire drawing device for producing gas shielded welding wire, such as Figure 1-Figure 7 As shown, it includes: a base 1, the base 1 is provided with a plurality of winding assemblies, the winding assemblies are used to pull the welding wire to move; a plurality of wire pulling assemblies are provided on the base 1, the wire pulling assemblies are used to stretch the welding wire, and the wire pulling assemblies include: a wire pulling shell 5, fixed to the base 1; a guide frame 6, having two, both fixed in the wire pulling shell 5, a first telescopic rod 7 is slidably connected in the guide frame 6, and a first spring is provided between the two; a first mold 8, having two, respectively fixed to the telescopic springs of the adjacent first telescopic rods 7 end; a limit ring 9, which is slidably connected to the wire drawing housing 5, and the limit ring 9 is used to fix the positions of the two first molds 8; a fixing frame 10, which is fixed to the wire drawing housing 5, and the fixing frame 10 is rotatably connected to the outer gear ring 11; there are multiple cleaning rods 12, which are all slidably connected to the outer gear ring 11, and a first tension spring is arranged between the two; a power component, which is arranged in the wire drawing housing 5, and is used to drive the outer gear ring 11 to rotate; there are two limit components, which are both arranged on the limit ring 9 and are respectively used to fix adjacent first molds 8.

[0021] Furthermore, Figure 5 and Figure 6 As shown, symmetrically distributed inclined annular surfaces are arranged inside the limiting ring 9 , and a similar inclined annular surface is arranged on a side of the first mold 8 close to the limiting ring 9 , so as to increase the contact area between the first mold 8 and the limiting ring 9 .

[0022] Furthermore, Figure 2-Figure 4 As shown, the winding assembly includes: a motor 2, which is arranged on a base 1; a bobbin 4, which is rotatably connected to the base 1, and an air clutch 3 is commonly arranged between the bobbin 4 and the output shaft of the motor 2, and the air clutch 3 is used to control the rotation of the bobbin 4.

[0023] The above scheme aims to solve the problem that during the production process of welding wire, the resistance to the movement of the welding wire increases due to the accumulation of impurities between the first mold 8 and the welding wire, which in turn causes the heat generation at the deformation point of the welding wire to increase during the production process and the welding wire is prone to breakage. In this embodiment, three winding assemblies and two wire pulling assemblies are arranged on the base 1, and the two are arranged alternately. The moving direction of the welding wire is from left to right. The base 1 is provided with two sets of guide wheels, and the two sets of guide wheels are used to pull the welding wire to move. A reducer is provided between the air clutch 3 and the spool 4 to increase the torque when the spool 4 rotates. The spool 4 is wound Winding multiple turns of welding wire is used to keep the welding wire in a taut state; the two guide frames 6 are respectively located on the front and rear sides of the wire drawing housing 5, and the first telescopic rod 7 is an elastic telescopic rod, which is provided with a tension spring. This is an existing structure and is no longer shown in the figure. In the initial state, the telescopic end of the first telescopic rod 7 is extended to make the adjacent surfaces of the two first molds 8 fit closely. The two first molds 8 are distributed front and back in the wire drawing housing 5, and the central angle of the first mold 8 is 180°, which is used to make the two first molds 8 fit together to form a "wire drawing mold". The axis of the "wire drawing mold" is provided with a drawing hole with a gradually changing aperture ( Figure 5 As shown); inclined annular surfaces are provided on both sides of the limit ring 9. In this embodiment, only the inclined annular surface on the left side of the limit ring 9 is used. The inclined annular surface of the limit ring 9 is used to push the two first molds 8 to approach and fit each other; the fixing frame 10 and the outer gear ring 11 are located on the left side of the first mold 8; in this embodiment, there are two cleaning rods 12, and a rubber block is provided on the right side of the cleaning rod 12. The rubber block is used to adapt to the change of the inner diameter of the "wire drawing mold" and to scrape and clean the first mold 8 to reduce the residual amount of impurities in the first mold 8. The first tension spring on the cleaning rod 12 is initially in a stretched state, and the first tension spring is used to drive the cleaning rod 12 to move to the right.

[0024] Furthermore, Figure 4-Figure 7 As shown, the power assembly includes: a transmission plate 13, which is slidably connected to the wire pulling housing 5, a second tension spring is arranged between the transmission plate 13 and the wire pulling housing 5, a transmission rack 14 is fixedly connected to the transmission plate 13, and the transmission rack 14 is slidably connected to the fixed frame 10; a first gear 15, which is rotatably connected to the fixed frame 10, and the fixed frame 10 is rotatably connected to the second gear 16, the first gear 15 and the second gear 16 are transmitted through a gearbox, the first gear 15 is meshed with the transmission rack 14, the second gear 16 is meshed with the outer gear ring 11, and the first gear 15 is a one-way gear.

[0025] In the above scheme, a method is provided for driving the outer gear ring 11 to rotate and cleaning the first mold 8. The transmission plate 13 is located on the moving path of the first mold 8. When the first mold 8 moves to the left relative to the limit ring 9, the transmission rack 14 is driven to move to the left through the transmission plate 13. The second tension spring on the transmission plate 13 is initially in a stretched state. The second tension spring is used to provide power for the transmission plate 13 and the parts thereon to move to the right; the first gear 15 is a one-way gear. When the transmission rack 14 moves to the right, the first gear 15 cannot drive the second gear 16 to rotate through the bevel gear set.

[0026] Furthermore, Figure 5 and Figure 6 As shown, the limiting assembly includes: a limiting rod 17, which is slidably connected to the limiting ring 9, a second spring is arranged between the limiting ring 9 and the limiting rod 17, a limiting hole is arranged on the first mold 8, and the limiting rod 17 is used to fix the first mold 8; a limiting frame 18, which is fixed to the limiting rod 17, the limiting frame 18 is slidably connected to the limiting ring 9, a T-shaped frame 19 is fixed in the wire drawing housing 5, the T-shaped frame 19 is provided with two first inclined surfaces, and the T-shaped frame 19 is used to push the limiting frame 18 to move.

[0027] Furthermore, Figure 5 and Figure 6 As shown, the end of the limiting rod 17 close to the first mold 8 is a ball head, and the depth of the limiting hole in the first mold 8 is greater than the diameter of the ball head on the limiting rod 17, which is used to reduce the relative movement between the limiting rod 17 and the first mold 8.

[0028] In the above scheme, a method is provided for controlling the connection relationship between the first mold 8 and the limiting ring 9, so that the two first molds 8 move to the left relative to the limiting ring 9 and separate from each other. The limiting rod 17 fixes the positions of the first mold 8 and the limiting ring 9 through the limiting hole of the first mold 8, so that the first mold 8 and the limiting ring 9 move synchronously; the limiting frame 18 is composed of a round rod and a vertical plate, and the two first inclined surfaces of the T-shaped frame 19 are located on the left and right sides of its upper part, and the T-shaped frame 19 squeezes the vertical plate of the limiting frame 18 through the first inclined surfaces thereon.

[0029] Furthermore, Figure 4 , Figure 5 and Figure 8 As shown, the limiting assembly also includes: a second telescopic rod 20, which is fixedly connected to the wire pulling housing 5, the second telescopic rod 20 is connected to the air clutch 3 through the air supply pipe, the telescopic end of the second telescopic rod 20 is fixedly connected to the limiting ring 9, and a third spring is arranged between the limiting ring 9 and the wire pulling housing 5; a baffle 201, which is hinged to the fixed part of the second telescopic rod 20, the second telescopic rod 20 is provided with an air outlet, and the baffle 201 is used to cover the air outlet of the second telescopic rod 20.

[0030] Furthermore, Figure 8As shown, the width of the baffle 201 is greater than the diameter of the air outlet of the second telescopic rod 20, and a first through hole is provided on the baffle 201. The diameter of the first through hole on the baffle 201 is smaller than the diameter of the air outlet of the second telescopic rod 20. The first through hole on the baffle 201 is connected to the air outlet of the second telescopic rod 20, so as to reduce the flow area of ​​the air outlet of the second telescopic rod 20.

[0031] In the above scheme, a method for stopping the rotation of the spool 4 is provided. The second telescopic rod 20 is located on the right side of the first mold 8, and the air outlet of the second telescopic rod 20 is located on its right part. Initially, the telescopic end of the second telescopic rod 20 is in an extended state, and the third spring on the limit ring 9 is used to push the limit ring 9 to move to the left and reset. The elastic member used in the air clutch 3 in this embodiment is a spring, which is used to make the air clutch 3 initially in a working state. The telescopic part of the second telescopic rod 20 divides its fixed part into two left and right chambers, and the left chamber of the fixed part of the second telescopic rod 20 is connected to the air clutch 3, which is used to extract the gas in the air clutch 3, so that the air clutch 3 stops driving the spool 4 to rotate.

[0032] Workflow: In the process of producing welding wire, the staff will wind the welding wire raw materials on three spools 4 in turn, and pass them through the drawing holes in two "wire drawing dies". Then the staff will start the three motors 2. The output shaft of the motor 2 drives the adjacent spools 4 to rotate through the air clutch 3. The spools 4 pull the welding wire as a whole from left to right. The welding wire applies a rightward extrusion force to the first die 8, so that the first die 8 squeezes the inclined annular surface on the limit ring 9, so that the limit ring 9 applies an extrusion force to the two first dies 8, thereby increasing the fitting strength between the two first dies 8. In this process, the "wire drawing die" composed of the two first dies 8 draws the passing welding wire to gradually reduce the diameter of the welding wire.

[0033] As the welding wire is continuously produced, when the impurities accumulated in the "wire drawing die" increase, the resistance encountered by the welding wire when passing through the "wire drawing die" increases, and the welding wire drives the first telescopic rod 7 to move to the right through the first die 8 and compresses the adjacent first spring. The first die 8 drives the limiting ring 9 to move to the right through the limiting rod 17, and the limiting ring 9 drives the two limiting frames 18 and the telescopic end of the second telescopic rod 20 to move to the right and compress the third spring on the limiting ring 9. The left chamber of the second telescopic rod 20 extracts the gas in the air clutch 3, so that the air clutch 3 gradually stops driving the bobbin 4 to rotate. At this time, the elastic member in the air clutch 3 accumulates force, and the gas in the right chamber of the second telescopic rod 20 is discharged through the air outlet thereon. At the same time, the gas blows the baffle 201, causing the baffle 201 to rotate counterclockwise and reduce the obstruction of the air outlet on the second telescopic rod 20, so that the gas in the right chamber of the second telescopic rod 20 is quickly discharged, until the first spring adjacent to the first telescopic rod 7 is compressed to the limit position, the first die 8 stops moving, and the limiting ring 9 stops moving.

[0034] During the process of the first mold 8 moving to the right, the extrusion pressure of the first mold 8 on the transmission plate 13 is reduced, and the transmission plate 13 drives the transmission rack 14 to move to the right under the action of the adjacent second tension spring until the second tension spring on the transmission plate 13 is reset, and the transmission plate 13 stops moving, and the first mold 8 continues to move to the right and separates from the transmission plate 13.

[0035] As the first mold 8 and the parts thereon continue to move to the right, the moving direction of the front first mold 8 and the parts thereon is taken as a reference in this section. When the limit frame 18 contacts the T-shaped frame 19, the T-shaped frame 19 pushes the limit frame 18 forward through the first inclined surface thereon, and the limit frame 18 drives the limit rod 17 to move and compress the second spring, so that the limit rod 17 gradually releases the connection between the first mold 8 and the limit ring 9, until the limit rod 17 is separated from the first mold 8, the limit ring 9 stops moving (the first mold 8 also stops moving at this time), and the gas in the second telescopic rod 20 stops. The baffle 201 is stopped from blowing, and the baffle 201 rotates in the opposite direction to reset. At the same time, the air clutch 3 stops driving the spool 4 to rotate, and the welding wire stops moving. In the process of the first mold 8 moving to the right, the rubber block on the right side of the cleaning rod 12 is always in contact with the first mold 8 under the action of the adjacent first tension spring. After the welding wire stops moving, the welding wire no longer applies a rightward force to the first mold 8, thereby causing the first mold 8 to move to the left under the action of the first telescopic rod 7 and the first spring thereon, and under the elastic action of the telescopic end of the first telescopic rod 7, the two first molds 8 are separated.

[0036] After the welding wire stops moving, the first telescopic rod 7 drives the first mold 8 to move to the left under the action of the first spring thereon, and the first mold 8 pushes the cleaning rod 12 to move in the opposite direction, and the first tension spring on the cleaning rod 12 is stretched again. The following takes the first mold 8 and its adjacent parts on the front side as an example. The first mold 8 moves to the left along the inclined ring surface of the limiting ring 9, and the first mold 8 moves forward under the elastic action of the first telescopic rod 7 and separates from the welding wire. As the first mold 8 moves forward, when the right side surface of the cleaning rod 12 loses contact with the first mold 8, the cleaning rod 12 moves to the right again under the action of the adjacent first tension spring, and moves to the rear of the first mold 8 (that is, between the two first molds 8). When the first mold 8 is separated from the limiting ring 9, the first mold 8 stops moving, the first tension spring on the cleaning rod 12 is no longer stretched, and the cleaning rod 12 stops moving.

[0037] During the above-mentioned process of the first mold 8 moving to the left, when the first mold 8 contacts the transmission plate 13 again, the first mold 8 pushes the transmission plate 13 to move left and reset, the transmission plate 13 drives the transmission rack 14 to move left and stretch the adjacent second tension spring, the transmission rack 14 drives the first gear 15 to rotate, the first gear 15 drives the second gear 16 to rotate through the gearbox, the second gear 16 drives the outer gear ring 11 to rotate, the outer gear ring 11 drives the cleaning rod 12 to rotate to scrape and clean the position where the first mold 8 contacts the welding wire, until the first mold 8 stops moving, the transmission plate 13 stops moving, the outer gear ring 11 stops driving the cleaning rod 12 to rotate, and the impurities on the first mold 8 are cleaned.

[0038] During the process of the first mold 8 being reset to the left, the air clutch 3 is reset under the drive of the elastic member inside it and extracts the gas in the left chamber of the second telescopic rod 20, so that the telescopic end of the second telescopic rod 20 drives the limit ring 9 and the parts thereon to gradually move to the left (during this process, the limit ring 9 is always pushed to the left by the third spring thereon), but at this time the baffle 201 blocks the air outlet of the second telescopic rod 20, and the air intake volume of the right chamber of the second telescopic rod 20 is reduced, thereby reducing the speed of the reset of the telescopic end of the second telescopic rod 20, so that the speed of movement of the limit ring 9 is much smaller than the speed of movement of the first mold 8, and then after the first mold 8 is cleaned, the limit ring 9 is reset again.

[0039] As the limit ring 9 moves to the left and resets, the limit ring 9 drives the limit frame 18 and the limit rod 17 to move to the left and reset, until the limit frame 18 is separated from the T-shaped frame 19, and the limit rod 17 drives the limit frame 18 to move backward and reset under the push of the adjacent second spring. As the limit ring 9 continues to move, when the inclined ring surface of the limit ring 9 contacts the two first molds 8, the two first molds 8 are gradually reset under the extrusion of the inclined ring surface on the limit ring 9, until the limit ring 9 stops moving, the first mold 8 stops moving and completes the reset, and the telescopic end of the second telescopic rod 20 is reset.

[0040] In the process of the inclined annular surface of the limit ring 9 squeezing the two first molds 8 in the above process, when the limit rod 17 contacts the first mold 8, the first mold 8 squeezes the ball head of the limit rod 17, so that the limit rod 17 drives the limit frame 18 to move forward and compresses the adjacent second spring. After the limit ring 9 stops moving, the limit rod 17 enters the limit hole of the first mold 8 again to complete the limit, thereby connecting the first mold 8 with the limit ring 9 again. At this time, the air clutch 3 is reset and drives the spool 4 to rotate again to draw the welding wire. After the welding wire drawing is completed, the staff will turn off the opened electrical components, and then re-place new welding wire to continue production.

[0041] Furthermore, Figure 4 , Fig. 9 and Fig.10As shown, it also includes: a conversion mechanism, the number of which is the same as the number of the wire pulling shells 5, which are respectively arranged in adjacent wire pulling shells 5, and the conversion mechanism is used to replace the first mold 8. The conversion mechanism includes: two elastic telescopic rods 21, both of which are fixedly connected to the wire pulling shell 5, and the telescopic end of the elastic telescopic rod 21 is fixedly connected to the second mold 22, and the second mold 22 is provided with a limiting groove; a transmission telescopic rod 23, which is fixedly connected to the wire pulling shell 5, and the transmission telescopic rod 23 is connected to the two first telescopic rods 7 through a connecting pipe, and a one-way valve is arranged in the connecting pipe, and the transmission telescopic rod 23 is provided with an exhaust hole, which is used to slowly release the gas in the transmission telescopic rod 23, and the telescopic part of the first telescopic rod 7 is provided with a second through hole, and the second through hole is provided with a one-way valve; a positioning component, which is arranged in the wire pulling shell 5, and is used to limit the telescopic end of the transmission telescopic rod 23.

[0042] In the above scheme, a method is provided for urgently replacing the function of the first mold 8 when the first mold 8 is severely worn to ensure the production efficiency of the welding wire. In this embodiment, the inclined ring surface on the right side of the limit ring 9 is used, and the inclined ring surface on the right side of the limit ring 9 is used to extrude two second molds 22. The second mold 22 is located on the right side of the first mold 8 and is used to replace the first mold 8 to reduce the diameter of the welding wire; the transmission telescopic rod 23 is an elastic telescopic rod, and the transmission telescopic rod 23 is located on the left side of the first mold 8. The rear part of the first telescopic rod 7 is connected to the left part of the transmission telescopic rod 23. When the telescopic end of the first telescopic rod 7 is retracted, the first telescopic rod 7 sends the gas inside it into the transmission telescopic rod 23 through the connecting pipe. The one-way valve in the connecting pipe is used to prevent the gas in the transmission telescopic rod 23 from entering the first telescopic rod 7, and the one-way valve in the first telescopic rod 7 flows from front to back (reference Fig.11 ), the air outlet on the second telescopic rod 20 is located at the right part of its fixed part, so that the right part of the telescopic part on the second telescopic rod 20 can be moved to the right side of the air outlet thereon.

[0043] Furthermore, Fig.10 -and Fig.11 As shown, the positioning assembly includes: a limit plate 24, which is slidably connected in the wire pulling shell 5, the limit plate 24 is fixedly connected to the telescopic end of the transmission telescopic rod 23, and the telescopic end of the transmission telescopic rod 23 pushes the limit ring 9 to move through the limit plate 24; a limit block 25, which is slidably connected in the wire pulling shell 5, the limit block 25 is used to limit the movement of the limit plate 24, and a second inclined surface is provided on the side of the limit block 25 close to the limit plate 24, and a fourth spring is provided between the limit block 25 and the wire pulling shell 5.

[0044] The above scheme provides a method for limiting the movement of the limit ring 9 to the right. The limit plate 24 is located on the left side of the limit ring 9, the second inclined surface of the limit block 25 is facing its left side, and the angle between the second inclined surface on the limit block 25 and the horizontal plane is greater than 45°, which is used to increase the resistance of the limit plate 24 when it moves to the left, and the fourth spring on the limit block 25 is used to promote the movement and reset.

[0045] Workflow: In this description, the moving direction of the first telescopic rod 7 at the rear side is used as a reference. After the moving resistance between the welding wire and the first mold 8 increases, if the resistance increase is only caused by impurities, as the first mold 8 moves to the left, the telescopic end of the first telescopic rod 7 drives the first mold 8 to move to the right. At this time, the one-way valve in the telescopic part of the first telescopic rod 7 is closed, and the first telescopic rod 7 transports the gas inside it to the transmission telescopic rod 23 through the connecting pipe. The air pressure in the transmission telescopic rod 23 increases, and the telescopic end of the transmission telescopic rod 23 extends and drives The limit plate 24 moves to the right, and at this time, the elastic member in the transmission telescopic rod 23 accumulates force until the limit plate 24 contacts the second inclined surface of the limit block 25, and the limit plate 24 presses the limit block 25 downward through the second inclined surface of the limit block 25, so that the limit block 25 moves downward and compresses the adjacent fourth spring, until the downward pressing force of the limit plate 24 on the limit block 25 is equal to the upward thrust of the fourth spring on the limit block 25, and the limit block 25 stops moving downward, and the limit plate 24 stops moving downward (at this time, the upper side of the limit block 25 is higher than the limit plate 2 4, so that the limit plate 24 cannot continue to move to the right), and then repeat the above process to clean the impurities adhered to the first mold 8. During this process, the telescopic end of the second telescopic rod 20 drives the limit ring 9 to gradually move to the left and reset. After the first mold 8 is cleaned, the limit ring 9 squeezes the two first molds 8 again to reset the two first molds 8. The first mold 8 drives the telescopic end of the first telescopic rod 7 to move, and the one-way valve in the telescopic part of the first telescopic rod 7 opens to allow gas to enter. At this time, the first telescopic rod 7 stops conveying gas to the transmission telescopic rod 23, and the gas in the transmission telescopic rod 23 is gradually discharged through the exhaust hole thereon, until the limit ring 9 stops moving, the telescopic part of the first telescopic rod 7 stops moving, the movement resistance between the welding wire and the first mold 8 is restored, and the first mold 8 no longer moves to the right. At this time, the transmission telescopic rod 23 is not completely reset. Under the action of the elastic member in the transmission telescopic rod 23, the gas in the transmission telescopic rod 23 continues to be discharged from the exhaust hole thereon until the telescopic end of the transmission telescopic rod 23 is reset, and the limit plate 24 and the limit block 25 are reset.

[0046] If the increase in resistance is caused by wear inside the first mold 8, after the first mold 8 is reset, there will be no obvious change in the resistance between the first mold 8 and the welding wire (that is, the resistance will not be significantly reduced), and the first mold 8 repeats the above process and moves to the right again. At this time, the gas in the transmission telescopic rod 23 is not discharged, and the first telescopic rod 7 transports gas into the transmission telescopic rod 23, so that the air pressure in the transmission telescopic rod 23 increases again, and the extrusion force of the telescopic end of the transmission telescopic rod 23 on the limit block 25 through the limit plate 24 increases again, and the limit block 25 moves downward again and compresses the adjacent fourth spring until the second inclined surface of the limit block 25 is separated from the limit plate 24, and the telescopic end of the transmission telescopic rod 23 drives the limit plate 24 to move right, and after the limit plate 24 contacts the limit ring 9, the limit plate 24 pushes the limit ring 9 to move right, and the limit ring 9 drives The limiting frame 18 moves to the right, so that the inclined annular surface on the right side of the limiting ring 9 squeezes the two second molds 22. The two second molds 22 approach each other and stretch the telescopic end of the elastic telescopic rod 21 until the telescopic end of the transmission telescopic rod 23 is fully extended, and the limiting ring 9 stops moving. At this time, the right part of the telescopic part on the second telescopic rod 20 moves to the right side of the air outlet thereon, so that the air clutch 3 is connected to the outside world through the second telescopic rod 20. The air clutch 3 is gradually reset under the action of the elastic part inside it, and the adjacent surfaces of the two second molds 22 are fitted. The limiting frame 18 is separated from the T-shaped frame 19, and the limiting rod 17 enters the limiting hole of the second mold 22 under the push of the adjacent second spring for fixation. The air clutch 3 drives the spool 4 to rotate again to continue the stretching production operation on the welding wire until the welding wire production is completed and the first mold 8 is replaced and maintained.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A wire drawing device for producing gas shielded welding wire, characterized in that: Included are: A base (1), the base (1) being provided with a plurality of winding assemblies, the winding assemblies being used to pull the welding wire to move; There are multiple wire pulling assemblies, all of which are arranged on the base (1). The wire pulling assemblies are used to pull the welding wire. The wire pulling assemblies include: A wire extraction housing (5) is fixedly connected to the base (1); The guide frames (6) are provided with two and are both fixedly connected to the wire pulling housing (5); a first telescopic rod (7) is slidably connected to the guide frames (6), and a first spring is provided between the two; The first mold (8) has two parts, each of which is fixed to the telescopic ends of the adjacent first telescopic rods (7); A limiting ring (9) is slidably connected to the wire drawing housing (5), and the limiting ring (9) is used to fix the positions of the two first molds (8); A fixed frame (10) is fixedly connected to the wire pulling housing (5), and the fixed frame (10) is rotatably connected to an external gear ring (11); A plurality of cleaning rods (12) are provided, each of which is slidably connected to the outer toothed ring (11), and a first tension spring is provided between the two; A power assembly, disposed in the wire pulling housing (5), and used to drive the outer gear ring (11) to rotate; There are two limit assemblies, both of which are arranged on the limit ring (9) and are used to fix adjacent first moulds (8) respectively.

2. A wire drawing device for producing gas shielded welding wire according to claim 1, characterized in that: The limiting ring (9) is provided with symmetrically distributed inclined annular surfaces, and the first mold (8) is provided with a similar inclined annular surface on a side close to the limiting ring (9), so as to increase the contact area between the first mold (8) and the limiting ring (9).

3. A wire drawing device for producing gas shielded welding wire according to claim 1, characterized in that: The winding assembly comprises: A motor (2) is arranged on the base (1); A bobbin (4) is rotatably connected to the base (1), and an air clutch (3) is provided between the bobbin (4) and an output shaft of the motor (2), wherein the air clutch (3) is used to control the rotation of the bobbin (4).

4. A wire drawing device for producing gas shielded welding wire according to claim 3, characterized in that: The power assembly includes: A transmission plate (13) is slidably connected in the wire pulling housing (5), a second tension spring is provided between the transmission plate (13) and the wire pulling housing (5), a transmission rack (14) is fixedly connected to the transmission plate (13), and the transmission rack (14) is slidably connected to the fixing frame (10); A first gear (15) is rotatably connected to the fixing frame (10), and the fixing frame (10) is rotatably connected to a second gear (16). The first gear (15) and the second gear (16) are transmitted via a gearbox. The first gear (15) meshes with the transmission rack (14), and the second gear (16) meshes with the outer gear ring (11). The first gear (15) is a one-way gear.

5. A wire drawing device for producing gas shielded welding wire according to claim 4, characterized in that: The limit assembly includes: a limiting rod (17) slidably connected to the limiting ring (9), a second spring being arranged between the limiting ring (9) and the limiting rod (17), a limiting hole being arranged on the first mould (8), and the limiting rod (17) being used to fix the first mould (8); A limit frame (18) is fixedly connected to the limit rod (17), the limit frame (18) is slidably connected to the limit ring (9), a T-shaped frame (19) is fixedly connected inside the wire pulling housing (5), the T-shaped frame (19) is provided with two first inclined surfaces, and the T-shaped frame (19) is used to push the limit frame (18) to move.

6. A wire drawing device for producing gas shielded welding wire according to claim 5, characterized in that: The end of the limiting rod (17) close to the first mould (8) is a ball head, and the depth of the limiting hole in the first mould (8) is greater than the diameter of the ball head on the limiting rod (17), so as to reduce the relative movement between the limiting rod (17) and the first mould (8).

7. A wire drawing device for producing gas shielded welding wire according to claim 5, characterized in that: The limit assembly also includes: A second telescopic rod (20) is fixedly connected in the wire pulling housing (5), the second telescopic rod (20) is connected to the air clutch (3) via an air pipe, the telescopic end of the second telescopic rod (20) is fixedly connected to the limit ring (9), and a third spring is provided between the limit ring (9) and the wire pulling housing (5); The baffle plate (201) is hinged to a fixing portion of the second telescopic rod (20); the second telescopic rod (20) is provided with an air outlet hole; the baffle plate (201) is used to cover the air outlet hole of the second telescopic rod (20).

8. A wire drawing device for producing gas shielded welding wire according to claim 7, characterized in that: The width of the baffle plate (201) is greater than the diameter of the air outlet hole of the second telescopic rod (20); a first through hole is provided on the baffle plate (201); the diameter of the first through hole on the baffle plate (201) is smaller than the diameter of the air outlet hole on the second telescopic rod (20); the first through hole on the baffle plate (201) is connected to the air outlet hole of the second telescopic rod (20), and is used to reduce the flow area of ​​the air outlet hole of the second telescopic rod (20).

9. A wire drawing device for producing gas shielded welding wire according to claim 7, characterized in that: Also included are: The conversion mechanisms, the number of which is the same as the number of the wire pulling shells (5), are respectively arranged in adjacent wire pulling shells (5), the conversion mechanisms are used to replace the first mold (8), and the conversion mechanisms include: There are two elastic telescopic rods (21), both of which are fixedly connected to the wire pulling housing (5); the telescopic ends of the elastic telescopic rods (21) are fixedly connected to a second mold (22); and a limiting groove is provided on the second mold (22); A transmission telescopic rod (23) is fixedly connected to the wire pulling housing (5); the transmission telescopic rod (23) is connected to both of the first telescopic rods (7) via a connecting pipe; a one-way valve is provided in the connecting pipe; the transmission telescopic rod (23) is provided with an exhaust hole, which is used to slowly release the gas in the transmission telescopic rod (23); a second through hole is provided in the telescopic portion of the first telescopic rod (7), and a one-way valve is provided in the second through hole; A positioning component is arranged in the wire pulling housing (5) and is used to limit the telescopic end of the transmission telescopic rod (23).

10. A wire drawing device for producing gas shielded welding wire according to claim 9, characterized in that: The positioning component includes: A limit plate (24) is slidably connected in the wire pulling housing (5), the limit plate (24) is fixedly connected to the telescopic end of the transmission telescopic rod (23), and the telescopic end of the transmission telescopic rod (23) pushes the limit ring (9) to move through the limit plate (24); A limit block (25) is slidably connected in the wire pulling housing (5), and the limit block (25) is used to limit the movement of the limit plate (24). A second inclined surface is provided on a side of the limit block (25) close to the limit plate (24), and a fourth spring is provided between the limit block (25) and the wire pulling housing (5).

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