Lamp frame forming production line

Abstract

The invention relates to the technical field of metal processing, and discloses a lamp frame forming production line which comprises a roller press, the roller press comprises rolling units and a welding head, rolling gaps are formed in the rolling units, the multiple rolling units are arranged in the left-right direction, the multiple rolling gaps are connected to form a rolling path, and the welding head faces the rolling path; the punching machine is located beside the roller press and comprises a punching module and a punching head arranged in the punching module. The cut-off machine comprises a material pressing module and a cut-off mechanism, a material pressing channel capable of being opened and closed is arranged in the material pressing module, the material pressing channel right faces the punching channel, the cut-off mechanism is provided with a cutter extending into the material pressing module along the direction inclined to the material pressing channel, and the cutter can penetrate through or retreat from the material pressing channel. The frame strip is stable in structure, the double-overlapped part of the frame strip cannot slip in the subsequent machining and forming process, the machining and forming precision of the frame strip is guaranteed, and the machining and forming quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal processing, in particular to a lamp frame forming production line. BACKGROUND

[0002] Traditional lamp frames are mostly made of aluminum material, but the unit price of aluminum material is relatively high. In order to better control the production cost of the whole lamp, some lamp frames are made of iron material at present. The single-layer iron metal plate is relatively weak and easy to deform. In order to ensure the structural strength of the lamp frame, the metal plate needs to be roll-pressed to form a double-layer structure. However, when using the existing processing equipment for processing, the double-layer lamp frame structure is easy to produce relative slip, which leads to the failure to process and form the lamp frame. Therefore, there is an urgent need for a production line suitable for processing and forming a double-layer lamp frame. SUMMARY

[0003] The present application aims to provide a lamp frame forming production line to solve one or more technical problems existing in the prior art, at least to provide a beneficial choice or create conditions.

[0004] The solution to the technical problem of the present application is:

[0005] The lamp frame forming production line comprises a roll-pressing machine, a punching machine and a cutting machine. The roll-pressing machine comprises a roll-pressing unit and a welding head. The roll-pressing unit is arranged in pairs along the left and right sides. A roll-pressing gap is formed in the roll-pressing unit. The roll-pressing units are connected to form a roll-pressing path. The welding head is located beside one of the roll-pressing units near the end of the roll-pressing path. The welding head faces the roll-pressing path. The punching machine is located beside the roll-pressing machine. The punching machine comprises a punching die set and a punching head arranged in the punching die set. The punching die set is provided with an openable and closable punching channel. The punching head can enter or exit the punching channel. The cutting machine comprises a pressing die set and a cutting mechanism. The pressing die set is provided with an openable and closable pressing channel. The pressing channel is opposite to the punching channel. The cutting mechanism has a cutting knife which is inclined to the pressing channel and extends into the pressing die set. The cutting knife can pass through or exit the pressing channel. The cutting mechanism is symmetrically arranged in two parts along the left and right directions.

[0006] The technical scheme has at least the following beneficial effects: the metal plate to be formed is sent into the rolling machine, the metal plate is sequentially rolled and formed through the rolling gaps in the multiple rolling units, the rolling path of the metal plate is a rolling path, the metal plate is formed into a frame strip structure through multiple rolling along the rolling path, and the frame strip has double overlapping parts, at this time, the double overlapping parts on the rolling path are welded by the welding head, so that the double overlapping parts on the frame strip are tightly connected and fixed, effectively limiting the relative sliding of the frame strip at this position, then the frame strip is sent to the punching channel of the opened punching die set, the punching channel of the punching die set is closed to tightly position the frame strip, the frame strip is punched by the punching head, then the frame strip is continuously sent to the pressing channel of the opened pressing die set, the pressing channel is closed to press the frame strip, then the cutting knives of the left and right cutting mechanisms obliquely enter the pressing channel to cut the pressed frame strip, when the cutting knives pass through the pressing channel, the frame strip is completely cut, and then the cutting knives are withdrawn from the pressing channel, so that the double overlapping structure of the frame strip is formed, the structural strength of the frame strip is improved, the double overlapping parts of the frame strip are welded, so that the frame strip structure is stable and the double overlapping parts of the frame strip will not slide in the subsequent processing and forming process, which is beneficial to ensuring the processing and forming precision of the frame strip and improving the processing and forming quality.

[0007] As a further improvement of the above technical scheme, the rolling machine further comprises a welding assisting mechanism, the welding assisting mechanism is located on the front side of the rolling path of the welding head, the welding assisting mechanism comprises a base, a first assisting roller and a second assisting roller rotatably connected to the base, an assisting gap is formed between the first assisting roller and the second assisting roller, and the assisting gap is located on the rolling path.

[0008] As a further improvement of the above technical scheme, one welding head and one welding assisting mechanism form a welding group, the number of the welding groups is at least two, in one welding group, the welding head faces the rolling path in the horizontal direction, and the first assisting roller and the second assisting roller rotate around the vertical axis respectively; in one welding group, the welding head faces the rolling path upward, and the first assisting roller and the second assisting roller rotate around the horizontal axis respectively.

[0009] As a further improvement of the above technical scheme, the second assisting roller and the welding head are located on the same side of the rolling path, the middle part of the second assisting roller is provided with an annular groove, the groove bottom of the annular groove is surrounded by a plurality of convex points, and the plurality of convex points protrude from the outer circumferential surface of the assisting roller.

[0010] As a further improvement of the above technical solution, the punching machine further comprises a punching drive and a punching rod, the punching die set comprises a fixed die and a movable die arranged side by side, the movable die is provided with an anti-falling groove on the side away from the fixed die, the movable die is provided with a containing groove capable of containing the punching head on the side close to the fixed die, the transmission block is connected in transmission with the punching drive, the transmission block is located in the anti-falling groove, the groove opening of the anti-falling groove is provided with an anti-falling ring limiting the transmission block from falling out, a spring is arranged between the transmission block and the groove bottom of the anti-falling groove, the punching rod is connected to the transmission block, and the punching rod passes through the spring, the movable die and is connected to the punching head.

[0011] As a further improvement of the above technical solution, the punching machine further comprises a punching drive and a punching rod, the punching die set comprises a fixed die and a movable die arranged side by side, the movable die is provided with an anti-falling groove on the side away from the fixed die, the movable die is provided with a containing groove capable of containing the punching head on the side close to the fixed die, the transmission block is connected in transmission with the punching drive, the transmission block is located in the anti-falling groove, the groove opening of the anti-falling groove is provided with an anti-falling ring limiting the transmission block from falling out, a spring is arranged between the transmission block and the groove bottom of the anti-falling groove, the punching rod is connected to the transmission block, and the punching rod passes through the spring, the movable die and is connected to the punching head.

[0012] As a further improvement of the above technical solution, the cutting machine further comprises a material discharging mechanism, the material discharging mechanism is provided with a material pressing member, the material pressing member is located in the material pressing die set, the material pressing member can move downward to the material pressing channel or move upward away from the material pressing channel, the bottom side of the material pressing die set is provided with a material discharging port corresponding to the position of the material pressing member, and the material discharging port is communicated with the material pressing channel.

[0013] As a further improvement of the above technical solution, the cutting knife is provided with a protruding knife head on the top of one end close to the material pressing channel, and the upper and lower sides of the knife head are inclined close to the direction close to the material pressing channel and form a sharp end.

[0014] As a further improvement of the above technical solution, the upper and lower sides of the knife head are respectively provided with inclined cutting surfaces, and the two inclined cutting surfaces are inclined close to each other in the direction close to the other knife head.

[0015] As a further improvement of the above technical solution, the cutting knife is provided with a material discharging channel on one side of the end close to the material pressing channel, and the material discharging channel extends in the up-down direction.

[0016] Additional aspects and advantages of the application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the following embodiment description will be briefly described. Obviously, the described drawings are only a part of the embodiments of the application, and not all the embodiments. Those skilled in the art can also obtain other design schemes and drawings from these drawings without creative labor.

[0018] Figure 1 is the overall structure schematic diagram of the present application.

[0019] Figure 2 is the first and second auxiliary pressure wheel structure schematic diagram of the present application.

[0020] Figure 3 is the top view structure schematic diagram of the present application, without showing the driving structure of the upper die.

[0021] Figure 4 is the cutter perspective view of the present application.

[0022] Figure 5 is the side view of the present application.

[0023] In the drawings: 110-rolling unit, 120-welding head, 131-first auxiliary pressure wheel, 132-second auxiliary pressure wheel, 133-annular groove, 134-bump, 141-translation drive, 142-sliding frame, 200-punching machine, 210-punching head, 220-punching drive, 230-punching rod, 240-fixed die, 250-moving die, 260-transmission block, 270-spring, 300-cutting machine, 310-pressing die group, 311-pressing channel, 312-upper die, 313-fixed part, 314-supporting part, 315-side pressing part, 320-lifting drive, 321-rack, 322-gear, 323-transmission rod, 324-linkage, 410-cutter, 411-cutter head, 412-bevel surface, 413-discharge channel, 500-discharge mechanism, 510-pressing drive. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, for the purpose of explaining the present application, and should not be understood as a limitation of the present application.

[0025] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as a limitation of the present application.

[0026] In the description of the application, the meaning of one or more is one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, within, etc. are understood as including the number. If the first, second is described, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0027] In the description of the application, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example: can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0028] In the description of the application, if the description of the terms "one embodiment", "some embodiments", "one example", "some examples", "some embodiments", "illustrative embodiments", "example", "specific example", "some examples" appears, it means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] Reference Figure 1The lamp frame forming production line comprises a rolling machine, a punching machine 200 and a cutting machine 300. The rolling machine comprises a rolling unit 110 and a welding head 120. The rolling unit 110 is formed with a rolling gap. A plurality of rolling units 110 are arranged along the left and right sides. The rolling gaps are connected to form a rolling path. The welding head 120 is located beside one of the rolling units 110 near the end of the rolling path and faces the rolling path. The punching machine 200 is located beside the rolling machine. The punching machine 200 comprises a punching die assembly and a punching head 210 arranged in the punching die assembly. The punching die assembly is provided with an openable and closable punching channel. The punching head 210 can enter or exit the punching channel. The cutting machine 300 comprises a pressing die assembly 310 and a cutting machine 300 structure. The pressing die assembly 310 is provided with an openable and closable pressing channel 311. The pressing channel 311 is opposite to the punching channel. The cutting machine 300 structure is provided with a cutting knife 410 which is obliquely arranged in the pressing die assembly 310. The cutting knife 410 can pass through or exit the pressing channel 311. The cutting machine 300 structure is symmetrically arranged along the left and right directions. In actual application, the direction of the cutting knife 410 is at an angle of 45 degrees with the pressing channel 311. The directions of the two cutting knives 410 are symmetrical to each other.

[0030] As known from the above, the metal plate to be formed is sent into the rolling machine. The metal plate is sequentially rolled and formed through the rolling gaps in the plurality of rolling units 110 to form a frame strip structure along the rolling path. The frame strip has double overlapping parts. The double overlapping parts of the frame strip are welded by the welding head 120 to tightly connect and fix the double overlapping parts of the frame strip, effectively limiting the relative sliding of the frame strip at this position. Then, the frame strip is sent into the punching channel of the punching die assembly which is opened. The punching channel of the punching die assembly is closed to tightly position the frame strip. The frame strip is punched by the punching head 210. Then, the frame strip is continuously sent into the pressing channel 311 of the pressing die assembly 310 which is opened. The pressing channel 311 is closed to tightly press the frame strip. Then, the cutting knives 410 of the left and right cutting machines 300 structures obliquely enter the pressing channel 311 to cut the tightly pressed frame strip. When the cutting knives 410 pass through the pressing channel 311, the frame strip is completely cut. Then, the cutting knives 410 exit the pressing channel 311. In this way, the double overlapping structure of the frame strip is formed to improve the structural strength of the frame strip. The double overlapping parts of the frame strip are welded to make the frame strip structure stable and prevent the double overlapping parts of the frame strip from sliding in the subsequent processing and forming process. This is beneficial to ensure the processing and forming precision of the frame strip and improve the processing and forming quality.

[0031] The rolling unit 110 comprises a rolling seat, rolling wheels rotatably connected to the rolling seat, two rolling wheels are arranged at intervals, a rolling gap is formed between the two rolling wheels, in actual application, the two rolling wheels can be arranged at intervals in the up-down direction, or arranged at intervals in the horizontal direction, the position and number of the rolling wheels can be arranged correspondingly according to different rolling forming positions, in addition, a motor for driving the rolling wheels to rotate can be arranged on the rolling seat, so as to provide conveying power when the metal plate is rolled and formed.

[0032] In order to ensure that the double-overlapped part of the formed frame strip can be welded and fixed, in the embodiment, the rolling machine further comprises a welding assisting mechanism, the welding assisting mechanism is located on the front side of the rolling path of the welding head 120, the welding assisting mechanism comprises a base, a first assisting wheel 131 and a second assisting wheel 132 rotatably connected to the base, an assisting gap is formed between the first assisting wheel 131 and the second assisting wheel 132, and the assisting gap is located on the rolling path. The rolling formed frame strip first passes through the assisting gap formed by the first assisting wheel 131 and the second assisting wheel 132 before the double-overlapped part needs to be welded, the first assisting wheel 131 and the second assisting wheel 132 tightly press the part to be welded, and then the welding head 120 is used for welding, so that the double-overlapped part of the formed frame strip can be tightly welded and fixed.

[0033] In the rolling formed frame strip, there are usually at least two double-overlapped parts, that is, the part formed by starting to fold forms a first overlapping structure, and the part formed at the end position forms a second overlapping structure, and the two parts are also welded during rolling forming, so in the embodiment, one welding head 120 and one welding assisting mechanism form a welding group, the number of the welding groups is at least two, in one welding group, the welding head 120 faces the rolling path in the horizontal direction, and the first assisting wheel 131 and the second assisting wheel 132 rotate around the vertical axis respectively; in one welding group, the welding head 120 faces the rolling path upward, and the first assisting wheel 131 and the second assisting wheel 132 rotate around the horizontal axis respectively. When working, the rolling formed frame strip passes through one welding group, the first assisting wheel 131 and the second assisting wheel 132 further tightly press the vertical double-overlapped part of the frame strip, so that the double-overlapped part is tightly attached, and then the welding head 120 is used for welding; similarly, the rolling formed frame strip passes through another welding group, the first assisting wheel 131 and the second assisting wheel 132 further tightly press the horizontal double-overlapped part of the frame strip, so that the double-overlapped part is tightly attached, and then the welding head 120 is used for welding, so that the head and tail positions of the frame strip folded to form the double-overlapping structure can be tightly welded, and the structural reliability of the formed frame strip is further improved.

[0034] To further improve the tightness of the connection between the double-overlapping parts of the frame strip before welding, such as Figure 2 As shown, in this embodiment, the second pressure roller 132 and the welding head 120 are located on the same side of the rolling path. The second pressure roller 132 has an annular groove 133 in the middle, and multiple protrusions 134 are arranged around the bottom of the annular groove 133. The multiple protrusions 134 protrude from the outer circumferential surface of the pressure roller. When the first pressure roller 131 and the second pressure roller 132 further press the formed frame strip, the outer circumferential surface of the second pressure roller 132 has portions that tightly adhere to and press against the outer surface of the frame strip on both sides along the axial direction. In the annular groove 133 in the middle, the protrusions 134 at the bottom of the groove protruding from the outer circumferential surface of the pressure roller will press against the first pressure roller 131 on the outer surface of the frame strip when it rotates to the outer surface of the frame strip, causing the outer surface of the frame strip to deform inward. This makes the double-overlapping parts of the frame strip fit more tightly. At this time, the welding head 120 welds it, improving the structural reliability of the frame strip after it is formed.

[0035] To ensure the continuity of frame strip roll forming, punching, and slitting, this invention also includes a translation drive 141, which is connected to a sliding frame 142. The translation drive 141 can drive the sliding frame 142 to reciprocate in a direction parallel to the roll forming path. The punching machine 200 and the cutting machine 300 are both located on the sliding frame 142. When punching and slitting are required on the roll-formed frame strip, the translation drive 141 drives the sliding frame 142 closer to the roll forming machine, and then moves away from the roll forming machine at the same conveying speed as the frame strip. At this time, the punching machine 200 and the cutting machine 300 on the sliding frame 142 remain relatively stationary with respect to the frame strip, which can realize the simultaneous roll forming and punching and slitting of the frame strip, improving the efficiency of lamp frame forming.

[0036] As a specific implementation of the punching machine 200, such as Figure 3As shown, the puncher 200 further comprises a punch driving 220 and a punch rod 230, the punch die set comprises a fixed die 240 and a movable die 250 arranged side by side, the movable die 250 is provided with an anti-drop groove on the side away from the fixed die 240, the movable die 250 is provided with an accommodating groove capable of accommodating the punch head 210 on the side close to the fixed die 240, the punch driving 220 is drivingly connected with a transmission block 260, the transmission block 260 is located in the anti-drop groove, the slot of the anti-drop groove is provided with an anti-drop ring limiting the transmission block 260 from falling out, a spring 270 is arranged between the transmission block 260 and the groove bottom of the anti-drop groove, the punch rod 230 is connected to the transmission block 260, the punch rod 230 passes through the spring 270, the movable die 250 and connects the punch head 210. In actual application, the punch driving 220 adopts various structural forms, such as electric screw, air cylinder or hydraulic cylinder, etc. When the movable die 250 is away from the fixed die 240, the punch channel is in an open state, then the punch driving 220 drives the transmission block 260 to move the movable die 250 close to the fixed die 240, when the movable die 250 abuts against the fixed die 240, the punch channel formed by the movable die 250 and the fixed die 240 is in a closed state, the frame strip is pressed tightly, as the punch driving 220 continues to drive the transmission block 260 to move, the transmission block 260 further compresses the spring 270, and through the punch rod 230, the punch head 210 is driven to punch the frame strip, after completion, the punch driving 220 drives the transmission block 260 to move backward, so that the punch head 210 retreats into the accommodating groove, when the transmission block 260 abuts against the anti-drop ring, the movable die 250 is driven to move backward synchronously, the punch channel is opened, so that the frame strip can be pressed tightly and processed by one driving source, and the working energy consumption required by the puncher 200 is reduced.

[0037] After the frame strip is cut by the two cutters 410, the middle part of the frame strip between the two cutters 410 is waste. In order to timely discharge the waste, in the embodiment, the cutting machine 300 further comprises a discharging mechanism 500, the discharging mechanism 500 is provided with a pressing member, the pressing member is located in the pressing die set 310, the pressing member can move downward to the pressing channel 311 or move upward away from the pressing channel 311, the bottom side of the pressing die set 310 is provided with a discharging port corresponding to the position of the pressing member, and the discharging port is communicated with the pressing channel 311. After the frame strip is cut by the cutter 410, the pressing member in the discharging mechanism 500 moves downward to the waste and presses the waste downward, so that the waste can fall from the discharging port, then the pressing member moves upward to reset, and the cut frame strip can continue to move in the pressing channel 311, so that the cut frame strip is completely pushed out of the pressing channel 311. Thus, the waste is effectively prevented from remaining in the pressing channel 311 and cannot be discharged, which is beneficial to ensure smooth feeding of the frame strip and reduce the occurrence of frame strip abrasion caused by waste, and improve the reliability of the whole machine operation.

[0038] Naturally, the cutting machine 300 has a drive source that can drive the cutter 410 through or out of the pressing channel 311. In this embodiment, the cutting machine 300 includes a linear drive, which is connected to the cutter 410 and drives the cutter 410 through or out of the pressing channel 311. The linear drive can be an electric screw, a cylinder or a hydraulic cylinder, etc.

[0039] To enable the cutter 410 to better cut the frame strips, such as Figure 4 As shown, in this embodiment, the top of one end of the cutter 410 near the pressing channel 311 is provided with a protruding blade head 411. The upper and lower sides of the blade head 411 are inclined towards the pressing channel 311 and form a tip. The cutter 410 is partially protruding to form the blade head 411, and the blade head 411 is inclined towards the upper and lower sides to form a tip for piercing and cutting the frame strip, increasing the pressure when force is applied. During operation, the tip of the blade head 411 first presses against the frame strip, applies force at a local position on the frame strip and completes the cutting, improving the smoothness and efficiency of cutting the frame strip.

[0040] To prevent inward curling at the ends of the cut frame strip segments and improve the quality of the segmentation, in this embodiment, the cutter head 411 is provided with beveled surfaces 412 on its upper and lower sides, and the two beveled surfaces 412 are inclined towards each other along the direction close to the other cutter head 411. When the two cutter heads 411 cut the frame strip, the portion of the frame strip between the two cutter heads 411 is waste material. The two cutter heads 411 cut the frame strip at positions away from each other, while the beveled surfaces 412 formed at positions close to each other can cause the cut waste material to curl inward, thereby providing space for the cutter head 411 to feed. This improves the flatness and smoothness of the cut position of the frame strip and effectively prevents the cut end face of the frame strip from curling inward.

[0041] When the cutter 410 cuts the frame strip, waste material is generated. This waste material adheres to the surface of the cutter 410 and is prone to wear between it and the pressure module 310 during retraction. To improve the service life of the cutter 410, in this embodiment, a discharge groove 413 is provided on the end of the cutter 410 near the pressure channel 311. The discharge groove 413 extends vertically. When the cutter 410 cuts the frame strip, the waste material generated enters the discharge groove 413 on the side of the cutter 410. The discharge groove 413 provides space for the waste material to avoid being squeezed and rubbed between the cutter 410 and the pressure module 310, thereby better protecting the pressure module 310 and the cutter and extending the service life of the cutter.

[0042] The pressing module 310 has a vertically opening and closing section, thereby realizing a pressing channel 311 that can be opened or closed. Specifically, the pressing module 310 includes a lower mold and an upper mold 312 located above the lower mold. The upper mold 312 can move downward toward or upward away from the lower mold. The pressing channel 311 is formed between the upper mold 312 and the lower mold. The bottom side of the upper mold 312 and the top side of the lower mold are respectively provided with clearance grooves to avoid the two cutters 410. The pressing component is located in the upper mold 312, and the discharge port is located in the lower mold. When feeding is required, the upper mold 312 moves upward to open the pressing channel 311. After the frame strip is moved into place, the upper mold 312 moves downward to close the pressing channel 311. The upper mold 312 and the lower mold achieve pressing and positioning of the frame strip. A clearance space is formed in the clearance grooves that face each other on the bottom side of the upper mold 312 and the top side of the lower mold, which allows the cutter 410 to move. At this time, the cutter 410 can move in this clearance space, thereby ensuring that the upper and lower sides of the frame strip can be covered and cut when entering the pressing channel 311. After the frame strip is cut into segments, the pressing component in the upper mold 312 moves downward to press the waste material into the discharge port of the lower mold and discharge it.

[0043] The blanking mechanism has a drive source that can move the upper die 312 up and down. Specifically, such as... Figure 5 As shown, the pressing mechanism includes a lifting drive 320, which is connected to the upper mold 312. The lifting drive 320 can drive the upper mold 312 to move up and down. In practical applications, the lifting drive 320 can be driven by an electric screw, a cylinder, or a hydraulic cylinder. To improve the stability of the upper mold 312's up and down movement, multiple guide pillars are provided on the lower mold. The upper mold 312 is provided with guide sleeves corresponding to the positions of the multiple guide pillars. The multiple guide pillars pass through the multiple guide sleeves. Thus, when the upper mold 312 moves up and down, the guide sleeves can also move along the up and down direction on the guide pillars, making the movement of the upper mold 312 more stable. When the frame strip needs to be fed in for cutting, the lifting drive 320 drives the upper mold 312 to move upward to open the pressing channel 311. After the feeding is completed, the lifting drive 320 drives the upper mold 312 to move downward to close the pressing channel 311, thereby achieving the pressing and positioning of the frame strip.

[0044] When the frame strip moves in the open pressing channel 311, there is friction between the frame strip and the bottom side of the pressing channel 311, at this time, the frame strip is prone to wear and tear, therefore, the lower mold can be arranged as a flexible open-close structure to reduce the wear and tear of the frame strip. Specifically, the present application also comprises a rack, the lower mold comprises a fixed part 313, a supporting part 314 and a side pressing part 315 arranged in the front-rear direction, the top side of the fixed part 313, the top side of the supporting part 314 and the top side of the side pressing part 315 are provided with the avoiding groove, the top side of the supporting part 314, the top of the fixed part 313 and the top of the side pressing part 315 form a pressing groove, the pressing channel 311 is formed between the upper mold 312 and the pressing groove, the fixed part 313 is arranged on the rack, the supporting part 314 is slidingly connected to the rack in the up-down direction, the side pressing part 315 is slidingly connected to the rack in the front-rear direction, the lifting drive 320 is drivingly connected to the supporting part 314 and the side pressing part 315, when the lifting drive 320 drives the upper mold 312 to move downward, it can drive the supporting part 314 to move upward and the side pressing part 315 to move close to the supporting part 314, when the lifting drive 320 drives the upper mold 312 to move downward, it can drive the supporting part 314 to move downward and the side pressing part 315 to move away from the supporting part 314. The fixed part 313, the supporting part 314 and the side pressing part 315 are arranged in the front-rear direction on the rack, the height of the supporting part 314 is relatively lower than that of the fixed part 313 and the side pressing part 315, the top side of the supporting part 314 forms a structure that matches the frame strip in concave-convex, and the part of the fixed part 313 and the side pressing part 315 that protrudes from the supporting part 314 together forms a pressing groove with the supporting part 314, when the frame strip needs to be sent in, the lifting drive 320 drives the upper mold 312 to move upward to move away from the pressing groove, at this time, the supporting part 314 moves downward and the side pressing part 315 moves in the direction away from the supporting part 314, so that the internal space of the pressing groove is opened, at this time, the frame strip is mainly positioned and moved into the pressing groove by external force, the bottom side of the frame strip and the side wall close to the side pressing part 315 do not contact the supporting part 314 and the side pressing part 315, and the side wall of the frame strip close to the fixed part 313 has less contact with the fixed part 313, which is close to linear contact, after the frame strip is sent in, the lifting drive 320 drives the upper mold 312 to move downward, at the same time, it drives the supporting part 314 to move upward and the side pressing part 315 to move close to the supporting part 314, so as to fold the pressing groove formed by the surrounding, the upper mold 312 and the supporting part 314 limit the frame strip from both sides, and the side pressing part 315 and the fixed part 313 limit the frame strip from the front and back, so as to further improve the tightness of the frame strip when it is pressed and positioned, which is beneficial to prevent the frame strip from moving during the cutting of the cutter 410, improve the cutting precision of the cutter 410 on the frame strip, effectively reduce the friction on the outer surface of the frame strip when it moves, better ensure the smoothness of the frame strip, in addition, after the space inside the pressing groove is opened, it can further promote the waste to fall downward to the discharge port.

[0045] As a specific embodiment of the transmission connection between the lifting drive 320 and the supporting part 314, in the present embodiment, the lifting drive 320 is transmission connected with a rack 321, the lifting drive 320 can drive the rack 321 to move up and down, the outer side of the supporting part 314 is provided with a gear 322, and the rack 321 is meshed with the gear 322. When the lifting drive 320 drives the rack 321 to move downward, power can be transmitted to the supporting part 314 through the meshing of the rack 321 and the gear 322, so as to drive the supporting part 314 to move upward. Conversely, when the lifting drive 320 drives the rack 321 to move upward, the supporting part 314 is driven to move downward through the power transmission of the rack 321 and the gear 322.

[0046] As a specific embodiment of the lifting drive 320 driving the side pressing part 315 to approach or move away from the supporting part 314, the lifting drive 320 is transmission connected with a transmission rod 323, the lifting drive 320 can drive the transmission rod 323 to move up and down, the transmission rod 323 is hingedly connected with a connecting rod 324, and one end of the connecting rod 324 away from the transmission rod 323 is hingedly connected to the side pressing part 315. When the lifting drive 320 drives the transmission rod 323 to move downward, the side pressing part 315 is pushed to the supporting part 314 through the connecting rod 324, so as to limit the frame strip side wall by pressing the frame strip side wall with the side pressing part 315. When the lifting drive 320 drives the transmission rod 323 to move upward, the side pressing part 315 is pulled away from the supporting part 314 through the connecting rod 324, so that the side pressing part 315 does not cause friction to the frame strip side wall.

[0047] The lifting drive 320 is mainly used to provide driving force for reciprocating movement in the up-down direction, and has various structural forms, such as an electric screw, a pneumatic cylinder or a hydraulic cylinder.

[0048] The discharging mechanism 500 has a driving source for driving the pressing member to move up and down. Specifically, the discharging mechanism 500 includes a pressing drive 510 arranged on the top side of the upper die 312, and the pressing drive 510 is transmission connected with the pressing member. In actual application, the pressing drive 510 has various structural forms, such as an electric screw, a pneumatic cylinder or a hydraulic cylinder. When the lifting drive 320 drives the upper die 312 to move upward or downward, the pressing drive 510 also moves up and down. After the slitting of the frame strip is completed, the pressing drive 510 on the top side of the upper die 312 provides a downward driving force to the pressing member, so that the pressing member drops the cut waste from the discharging port, and then the pressing drive 510 drives the pressing member to move upward and reset.

[0049] The preferred embodiments of the present application have been disclosed with specific reference to a preferred embodiment. A person with ordinary skill in the art understands that variations in, or replacements for, the preferred embodiments described herein can be made without departing from the spirit of the application. These equivalent variations or replacements are also encompassed within the scope of the claims defined below.

Claims

1. A lamp frame forming production line, characterized in that: include: A rolling mill includes a rolling unit (110) and a welding head (120). A rolling gap is formed in the rolling unit (110). Multiple rolling units (110) are arranged in a left-right manner. The multiple rolling gaps are connected to form a rolling path. The welding head (120) is located next to one of the rolling units (110) near the end of the rolling path. The welding head (120) faces the rolling path. A punching machine (200) is located next to the rolling mill. The punching machine (200) includes a stamping module and a punching head (210) disposed in the stamping module. The stamping module is provided with an openable stamping channel, and the punching head (210) can enter or exit the stamping channel. A cutting machine (300) includes a pressing module (310) and a cutting machine (300) structure. The pressing module (310) is provided with an openable pressing channel (311) which is directly opposite the stamping channel. The cutting machine (300) structure has a cutter (410) that extends into the pressing module (310) along the pressing channel (311). The cutter (410) can pass through or exit the pressing channel (311). Two cutting machines (300) structures are symmetrically arranged in the left-right direction.

2. The lamp frame forming production line according to claim 1, characterized in that: The rolling mill also includes a welding assistance mechanism, which is located in front of the rolling path of the welding head (120). The welding assistance mechanism includes a base, a first pressure roller (131) and a second pressure roller (132) rotatably connected to the base, and a pressure assistance gap is formed between the first pressure roller (131) and the second pressure roller (132), which is located on the rolling path.

3. The lamp frame forming production line according to claim 2, characterized in that: A welding group consists of one welding head (120) and one welding assistance mechanism. There are at least two welding groups. In one welding group, the welding head (120) faces the rolling path in the horizontal direction, and the first pressure roller (131) and the second pressure roller (132) rotate about the vertical axis respectively. In another welding group, the welding head (120) faces the rolling path upwards, and the first pressure roller (131) and the second pressure roller (132) rotate about the horizontal axis respectively.

4. The lamp frame forming production line according to claim 2, characterized in that: The second pressure roller (132) and the welding head (120) are located on the same side of the rolling path. The second pressure roller (132) has an annular groove (133) in the middle. The bottom of the annular groove (133) is surrounded by a plurality of protrusions (134), and the plurality of protrusions (134) protrude from the outer circumferential surface of the pressure roller.

5. The lamp frame forming production line according to claim 1, characterized in that: It also includes a translation drive (141), which is connected to a sliding frame (142). The translation drive (141) can drive the sliding frame (142) to reciprocate in a direction parallel to the rolling path. The punching machine (200) and the cutting machine (300) are both located on the sliding frame (142).

6. The lamp frame forming production line according to claim 1, characterized in that: The punching machine (200) further includes a punching drive (220) and a punching rod (230). The punching module includes a fixed die (240) and a movable die (250) arranged side by side. The movable die (250) has an anti-detachment groove on the side away from the fixed die (240), and a receiving groove for accommodating the punching head (210) is provided on the side of the movable die (250) closer to the fixed die (240). The punching drive (220) is driven by a transmission. The transmission block (260) is located in the anti-detachment groove. The groove opening of the anti-detachment groove is provided with an anti-detachment ring to restrict the transmission block (260) from detaching. A spring (270) is provided between the transmission block (260) and the bottom of the anti-detachment groove. The stamping rod (230) is connected to the transmission block (260). The stamping rod (230) passes through the spring (270), the movable die (250) and is connected to the stamping head (210).

7. The lamp frame forming production line according to claim 1, characterized in that: The cutting machine (300) also includes a discharge mechanism (500), which is provided with a pressing component. The pressing component is located in the pressing module (310). The pressing component can move downward to the pressing channel (311) or upward away from the pressing channel (311). The bottom side of the pressing module (310) is provided with a discharge port corresponding to the position of the pressing component. The discharge port is connected to the pressing channel (311).

8. The lamp frame forming production line according to claim 1, characterized in that: The cutter (410) has a protruding blade head (411) at the top of one end near the pressing channel (311), and the upper and lower sides of the blade head (411) are inclined towards the pressing channel (311) and form a sharp point.

9. The lamp frame forming production line according to claim 8, characterized in that: The cutter head (411) is provided with oblique cutting surfaces (412) on its upper and lower sides respectively, and the two oblique cutting surfaces (412) are inclined to each other and close to each other in the direction of approaching the other cutter head (411).

10. The lamp frame forming production line according to claim 1, characterized in that: The cutter (410) is provided with a discharge channel (413) on one side near the end of the pressing channel (311), and the discharge channel (413) extends in the vertical direction.

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