Cable bridge forming splitting machine

Abstract

The invention belongs to the technical field of cable bridge cutting, and particularly relates to a cable bridge forming and splitting machine which comprises a roller conveyor. A limiting mechanism is arranged at the bottom of the roller conveyor, two positioning blocks are arranged at the end, close to the middle of the roller conveyor, of the limiting mechanism, and adjusting mechanisms are arranged on the positioning blocks. By arranging a ratchet wheel, a gear and a rack, rotating a rotating block, driving a rotating shaft to rotate through the rotating block, driving a gear to rotate through the rotating shaft, driving a rack to move up and down through the gear and driving a limiting block to move up and down through the rack until the limiting block is adjusted to a proper position, the function of rapidly adjusting the height of the limiting block is achieved; when the ratchet wheel is driven by the rotating shaft to rotate, the pawl is driven by the ratchet wheel to swing downwards, the pawl is conveniently inserted between the ratchet wheels all the time under the action of the first spring, the top of the pawl is pressed by the sliding block at the moment, and the pawl cannot rotate upwards, so that the height of the rack is fixed in real time.

Description

Technical Field

[0001] The invention belongs to the technical field of cable bridge cutting, in particular to a cable bridge forming and slitting machine. Background Art

[0002] Cable trays are generally divided into ladder-type cable trays, tray-type cable trays, trough-type cable trays, large-span cable trays and combined cable trays. At present, most cable trays are cut by grinding wheels. Since most cable trays are stamped from thin plates, the cable trays are bound to vibrate violently during the high-speed rotation of the grinding wheel. Not only will it damage the grinding wheel and cause it to explode, but it will also be inconvenient to cut.

[0003] A Chinese patent, publication number CN112059270B, discloses a highly efficient cable tray cutting device. The device comprises a concave positioning slot for the cable tray. A shearing mechanism is mounted at the end of the slot. The mechanism comprises an upper drive housing, below which a shearing box is mounted, communicating with the interior. The upper drive housing is cylindrical, with concentric ring gears mounted at either end of its inner wall. A single rotation of the driven gear completes the shearing action on both sides and the bottom of the cable tray, significantly improving overall efficiency.

[0004] In the current existing technology, although cable trays can be cut, the above-mentioned device can only cut cable trays of the same specifications. It is only placed in the positioning groove, and the cable tray is not firmly fixed. The operator needs to perform additional fixing operations during cutting. Moreover, the positioning groove can only fix cable trays of the same specifications. It is not suitable for cable trays of different sizes when cutting. Therefore, the application range of the positioning groove is low.

[0005] To this end, the present invention provides a cable tray forming and slitting machine. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a cable tray forming and slitting machine described in the present invention includes a roller conveyor; a limiting mechanism is provided at the bottom of the roller conveyor, and two positioning blocks are provided at one end of the limiting mechanism close to the middle of the roller conveyor, and an adjustment mechanism is provided on the positioning block; the adjustment mechanism includes a limiting block slidably connected to the two positioning blocks through a limiting groove; racks are fixed to the outer walls of the limiting blocks; two fixed rods are symmetrically fixed to the top of the roller conveyor, and gears are rotatably connected to the fixed rods through a rotating shaft, and the gears are meshed with adjacent racks; a rotating block is fixed to one end of the rotating shaft, and a ratchet is fixed to the other end of the rotating shaft, and a non-return mechanism is provided on one side of the ratchet; a cable tray body is provided on the roller conveyor.

[0008] Preferably, the limiting mechanism includes two fixed plates fixedly connected to the bottom of the roller conveyor; a bidirectional ball screw is rotatably connected between the two fixed plates through a bearing, and two vertical plates are threadedly connected to the bidirectional ball screw; two guide rods are fixed between the two fixed plates, and the vertical plates slide on the guide rods; the tops of the vertical plates are fixedly connected to a bottom plate, and the positioning blocks are respectively fixed to the tops of the two bottom plates; a plurality of limiting rollers are rotatably connected to the other end of the bottom plate; a first motor is fixedly connected to one of the fixed plates, and the output shaft of the first motor is fixedly connected to one end of the bidirectional ball screw.

[0009] Preferably, the non-return mechanism includes pawls rotatably connected to two fixed rods through pin shafts, and the pawls are engaged with the ratchet wheels; inclined plates are fixed to the side walls of the fixed rods, and a first spring is fixed between the inclined plates and the pawls; the tops of the pawls are slidably connected to sliders; one ends of the sliders are inserted and slid in the fixed rods; the ends of the sliders close to the fixed rods are rotatably connected to plug posts, one ends of the plug posts slide in the fixed rods, and one end of the plug posts is magnetically fitted with the fixed rods.

[0010] Preferably, a conveying groove is opened in the limit block; the cable tray body moves in the conveying groove; a plurality of rolling balls are rotatably connected to the top inner wall of the conveying groove; a plurality of first side rollers are rotatably connected to the side wall of the conveying groove close to the positioning block.

[0011] Preferably, a plurality of slide rods are slidably connected to the side wall of the conveying trough away from the positioning block; one end of the plurality of slide rods is arranged in the conveying trough and is commonly fixed to a mounting seat; a plurality of second side rollers are rotatably connected in the mounting seat; a second spring is sleeved on the outer wall of the slide rod, and the two ends of the second spring are respectively fixed to the mounting seat and the side wall of the conveying trough.

[0012] Preferably, the tops of the two fixing rods are fixed with fixing frames, the tops of the fixing frames are fixed with electric push rods, the output ends of the electric push rods are fixed with connecting seats, a cutting knife is inserted into the connecting seat, and the cutting knife is made of alloy material.

[0013] Preferably, two vertical rods are fixed to the top of the connecting seat, and the vertical rods are slidably connected to the fixing frame; the outer sides of the vertical rods are sleeved with a third spring, and the two ends of the third spring are respectively fixed between the connecting seat and the fixing frame.

[0014] Preferably, two connecting plates are fixed on the side walls of the fixed frame, a reciprocating screw is rotatably connected between the two connecting plates through bearings, a lifting frame is threadedly connected to the reciprocating screw, two connecting rods are symmetrically fixed at both ends of the lifting frame, the bottoms of the connecting rods are fixed with round blocks, and the round blocks are arranged on the top of the cable tray body; two limiting rods are fixed between the two connecting plates, and the lifting frame is slidably connected to the limiting rods; a second motor is provided at the bottom of the reciprocating screw.

[0015] Preferably, an L-shaped plate is fixedly connected to the side wall of one end of the roller conveyor away from the limiting roller, a cylinder is fixedly connected to the top of the L-shaped plate, and a push plate is fixedly connected to the output end of the cylinder.

[0016] Preferably, a side plate is fixedly connected to one end of the limiting block close to the limiting roller, and a displacement sensor is installed at the bottom of the side plate; the displacement sensor is electrically connected to the electric push rod, the second motor and the cylinder.

[0017] The beneficial effects of the present invention are as follows: 1. The cable tray forming and slitting machine described in the present invention realizes the function of quickly adjusting the height of the limit block by setting a ratchet, a gear and a rack, and rotating the rotary block, which drives the rotating shaft to rotate through the rotary block, drives the gear to rotate through the rotating shaft, drives the rack to move up and down through the gear, and drives the limit block to move up and down through the rack until it is adjusted to a suitable position; when the ratchet is driven to rotate by the rotating shaft, the ratchet drives the pawl to swing downward, and the pawl is always inserted between the ratchet wheels under the action of the first spring. Since the top of the pawl is pressed by the slider at this time, the pawl will not rotate upward, so the height of the rack is fixed in real time.

[0018] 2. The cable tray forming and slitting machine described in the present invention monitors the length of the cable tray body through a displacement sensor. When the length of the cable tray body reaches a set value, the system controls the second motor, and drives the reciprocating screw to rotate through the output shaft of the second motor, and drives the lifting frame, connecting rod, and round block to move downward through the reciprocating screw, thereby pressing the cable tray body to prevent it from shaking with the cutting knife during cutting; then, the electric push rod is controlled to drive the cutting knife to move, thereby realizing the cutting of the cable tray body; when the length of the cable tray body cannot reach the set value, which means that the cable tray body is transported to the last residual material position and cannot be cut, the second motor and the electric push rod do not work, but the system controls the cylinder to open, and drives the push plate to move through the output end of the cylinder, and pushes the cable tray body to one side of the roller conveyor through the push plate, and transports it to the specified position from the edge of the roller conveyor to prevent the residual material from being mixed with the cable tray body of qualified length.

[0019] 3. The cable tray forming and slitting machine described in the present invention requires turning on the first motor by setting a limiting roller, and driving the bidirectional ball screw to rotate through the output shaft of the first motor, driving the two vertical plates to move through the bidirectional ball screw, driving the bottom plate to move through the vertical plates, and driving the limiting roller and the positioning block to move through the bottom plate until the limiting roller clamps the cable tray body in the middle of the roller conveyor. At the same time, the positioning block drives the limiting blocks to move to both sides of the cable tray body, so that the cable tray body can pass through the limiting blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 is a perspective view of the present invention; Figure 2 It is a structural schematic diagram of the limiting roller in the present invention; Figure 3 It is a structural diagram of the positioning block in the present invention; Figure 4 It is a schematic structural diagram of the gear and ratchet in the present invention; Figure 5 It is a structural schematic diagram of the limit block in the present invention; Figure 6 It is a structural schematic diagram of the mounting base in the present invention; Figure 7 It is a structural schematic diagram of the fixing frame in the present invention; Figure 8 It is a structural schematic diagram of the lifting frame in the present invention; Figure: 1, roller conveyor; 2, limiting roller; 21, bottom plate; 22, first motor; 23, vertical plate; 24, fixed plate; 25, guide rod; 26, bidirectional ball screw; 27, limiting groove; 28, positioning block; 3, limiting block; 31, rack; 32, fixed rod; 321, gear; 322, rotary block; 323, ratchet; 324, pawl; 325, inclined plate; 326, first spring; 327, slider; 328, plug column; 33, side plate; 331, displacement sensor ;34. First side roller;35. Rolling ball;36. Slide rod;361. Mounting seat;362. Second side roller;363. Second spring;4. Cable tray body;5. Fixing frame;51. Electric push rod;52. Cutting knife;53. Connecting seat;54. Vertical rod;55. Third spring;6. Lifting frame;61. Connecting rod;62. Round block;63. Connecting plate;64. Reciprocating screw rod;65. Limiting rod;66. Second motor;7. L-shaped plate;71. Cylinder;72. Push plate. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figures 1 to 4 As shown, a cable tray forming and slitting machine described in an embodiment of the present invention includes a roller conveyor 1; a limiting mechanism is provided at the bottom of the roller conveyor 1, and two positioning blocks 28 are provided at one end of the limiting mechanism close to the middle of the roller conveyor 1, and an adjustment mechanism is provided on the positioning block 28; the adjustment mechanism includes a limiting block 3 that is slidably connected to the two positioning blocks 28 through a limiting groove 27; a rack 31 is fixed to the outer wall of the limiting block 3; two fixed rods 32 are symmetrically fixed to the top of the roller conveyor 1, and a gear 321 is rotatably connected to the fixed rod 32 through a rotating shaft, and the gears 321 are meshed with adjacent racks 31; a rotating block 322 is fixed to one end of the rotating shaft, and a ratchet 323 is fixed to the other end of the rotating shaft, and a non-return mechanism is provided on one side of the ratchet 323; a cable tray body 4 is provided on the roller conveyor 1.

[0024] Cable trays are generally divided into ladder-type cable trays, tray-type cable trays, trough-type cable trays, large-span cable trays and combined cable trays. At present, most cable trays are cut by grinding wheels. In the existing technology, although cable trays can be cut, the above-mentioned device can only cut cable trays of the same specifications. It is only placed in the positioning groove, and the cable tray is not firmly fixed. The operator needs to perform additional fixing operations during cutting. Moreover, the positioning groove can only fix cable trays of the same specifications. It is not suitable for cable trays of different sizes when cutting. Therefore, the application range of the positioning groove is low.

[0025] When the adjustment mechanism provided by the present invention is in use, the cable tray body 4 has different specifications, so the position and height of the positioning block 28 are different. When adjusting the position of the positioning block 28, it is necessary to adjust the distance between the two positioning blocks 28 through the limit mechanism, so that the cable tray body 4 is transported between the two positioning blocks 28; when adjusting the height, by rotating the rotary block 322, the rotary block 322 drives the rotating shaft to rotate, and the rotating shaft drives the gear 321 to rotate, and the gear 321 drives the rack 31 to move up and down, and the rack 31 drives the limit block 3 to move up and down until it is adjusted to the appropriate position, thereby realizing the function of quickly adjusting the height of the limit block 3; it is convenient for the cable tray body 4 to be transported from the limit block 3; during the rotation of the rotating shaft, the rotating shaft also drives the ratchet 323 to rotate. After the limit block 3 is adjusted to the appropriate height, the ratchet 323 is fixed by the check mechanism to prevent the ratchet 323, gear 321 and rotating shaft from rotating during cutting, resulting in a change in the height of the limit block 3, affecting the continuous cutting.

[0026] like Figure 2 As shown, the limiting mechanism includes two fixed plates 24 fixedly connected to the bottom of the roller conveyor 1; a bidirectional ball screw 26 is rotatably connected between the two fixed plates 24 through a bearing, and two vertical plates 23 are threadedly connected to the bidirectional ball screw 26; two guide rods 25 are fixed between the two fixed plates 24, and the vertical plates 23 all slide on the guide rods 25; the tops of the vertical plates 23 are fixedly connected to the bottom plates 21, and the positioning blocks 28 are respectively fixedly connected to the tops of the two bottom plates 21; a plurality of limiting rollers 2 are rotatably connected to the other end of the bottom plate 21; a first motor 22 is fixedly connected to one of the fixed plates 24, and the output shaft of the first motor 22 is fixedly connected to one end of the bidirectional ball screw 26.

[0027] When the limiting mechanism provided by the present invention is in use, the width of the cable tray body 4 is different. When the width of the cable tray body 4 needs to be limited and fixed, the first motor 22 needs to be turned on, and the bidirectional ball screw 26 is driven to rotate by the output shaft of the first motor 22, and the two vertical plates 23 are driven to move by the bidirectional ball screw 26, and the bottom plate 21 is driven to move by the vertical plate 23, and the limiting roller 2 and the positioning block 28 are driven to move by the bottom plate 21 until the limiting roller 2 clamps the cable tray body 4 in the middle of the roller conveyor 1, and at the same time, the positioning block 28 drives the limiting block 3 to move to both sides of the cable tray body 4, so that the cable tray body 4 can pass through the limiting block 3; wherein, during the movement of the vertical plate 23, the vertical plate 23 slides on the two guide rods 25, and the guide rods 25 limit the vertical plate 23 to move in the horizontal direction.

[0028] like Figure 3 and Figure 4As shown, the non-return mechanism includes a pawl 324 rotatably connected to the two fixed rods 32 through a pin shaft, and the pawl 324 is engaged with the ratchet 323; an inclined plate 325 is fixed to the side wall of the fixed rod 32, and a first spring 326 is fixed between the inclined plate 325 and the pawl 324; a slider 327 is slidably connected to the top of the pawl 324; one end of the slider 327 is inserted and slid in the fixed rod 32; the end of the slider 327 close to the fixed rod 32 is rotatably connected to the plug post 328, one end of the plug post 328 slides in the fixed rod 32, and one end of the plug post 328 is magnetically fitted with the fixed rod 32.

[0029] The anti-return mechanism provided by the present invention is used to fix the ratchet wheel 323 to prevent the ratchet wheel 323 from rotating when in use. When the limit block 3 needs to be adjusted upward, the rotary block 322 needs to be rotated counterclockwise, and the rotary block 322 drives the gear 321 and the ratchet wheel 323 to rotate counterclockwise, and the gear 321 drives the rack 31 and the limit block 3 to move upward, and the ratchet wheel 323 drives the pawl 324 to swing downward, wherein the pawl 324 is always inserted between the ratchet wheels 323 under the action of the first spring 326, and because the top of the pawl 324 is pressed by the slider 327 at this time, the pawl 324 will not rotate upward, so the rack 31 is adjusted in real time. When the locking cam 328 is in the unlocking state, the locking cam 321 is unlocked and the locking cam 322 is unlocked, and the locking cam 321 is unlocked. When the locking cam 328 is in the unlocking state, the locking cam 321 is unlocked and the locking cam 322 is unlocked.

[0030] like Figure 5 As shown, a conveying groove is provided in the limit block 3; the cable tray body 4 moves in the conveying groove; a plurality of rolling balls 35 are rotatably connected to the top inner wall of the conveying groove; a plurality of first side rollers 34 are rotatably connected to the side wall of the conveying groove close to the positioning block 28.

[0031] The conveying trough provided by the present invention is used for conveying the cable tray body 4 when in use, wherein the first side roller 34 and the rolling ball 35 provided therein facilitate the conveying of the cable tray body 4 and prevent friction between the edge of the cable tray body 4 and the conveying trough; since the cable tray body 4 is U-shaped, it may be deformed during cutting, and the cable tray body 4 is fixed by the first side roller 34 and the rolling ball 35 to prevent deformation.

[0032] like Figure 5 and Figure 6As shown, a plurality of slide bars 36 are slidably connected to the side wall of the conveying trough away from the positioning block 28; one end of the plurality of slide bars 36 is arranged in the conveying trough and is commonly fixed to a mounting seat 361; a plurality of second side rollers 362 are rotatably connected in the mounting seat 361; a second spring 363 is sleeved on the outer wall of each slide bar 36, and the two ends of the second spring 363 are respectively fixed to the mounting seat 361 and the side wall of the conveying trough.

[0033] The second side roller 362 provided by the present invention is used to fix the inner side of the cable tray body 4 when in use. Due to the different thicknesses of the cable tray body 4, when the cable tray body 4 passes through the conveying trough, the second side roller 362 is squeezed by the cable tray body 4, and the mounting seat 361 is squeezed by the second side roller 362. The sliding rod 36 is driven to slide by the mounting seat 361. Under the action of the second spring 363, the cable tray body 4 of different thicknesses can be clamped and limited.

[0034] like Figure 1 and Figure 7 As shown, the tops of the two fixing rods 32 are fixed with a fixing frame 5, the tops of the fixing frames 5 are fixed with an electric push rod 51, the output ends of the electric push rod 51 are fixed with a connecting seat 53, a cutting knife 52 is inserted into the connecting seat 53, and the cutting knife 52 is made of alloy material.

[0035] The cutting knife 52 provided by the present invention is used to cut the cable tray body 4 when in use. When cutting is required, the electric push rod 51 is turned on, and the connecting seat 53 is driven to move by the output end of the electric push rod 51, and the cutting knife 52 is driven to move by the connecting seat 53 to achieve cutting of the cable tray body 4. In addition, the connecting seat 53 and the cutting knife 52 are plugged in and matched, which facilitates the replacement of the cutting knife 52.

[0036] like Figure 7 As shown, two vertical rods 54 are fixed to the top of the connecting seat 53, and the vertical rods 54 are slidably connected to the fixing frame 5; the outer sides of the vertical rods 54 are sleeved with third springs 55, and the two ends of the third springs 55 are respectively fixed between the connecting seat 53 and the fixing frame 5.

[0037] When the vertical rod 54 provided by the present invention is in use, when the output end of the electric push rod 51 drives the connecting seat 53 to move, the connecting seat 53 drives the vertical rod 54 to slide, and the connecting seat 53 is limited to move in the vertical direction by the vertical rod 54; by setting the third spring 55, when the electric push rod 51 retracts, the third spring 55 releases force through the stored elastic potential energy, assisting the connecting seat 53 and the cutting knife 52 to quickly return to the initial position, ensuring efficient resetting of the equipment and reducing the burden on the electric push rod 51; and during the cutting process, if uneven resistance or sudden impact is encountered, the third spring 55 can be compressed or stretched to absorb energy, slowing down the impact force transmitted to the electric push rod 51 and the fixing frame 5, and protecting the equipment from damage.

[0038] like Figure 1 and Figure 8 As shown, two connecting plates 63 are fixed to the side walls of the fixed frame 5, and a reciprocating screw rod 64 is rotatably connected between the two connecting plates 63 through a bearing. The reciprocating screw rod 64 is threadedly connected to the lifting frame 6, and two connecting rods 61 are symmetrically fixed to both ends of the lifting frame 6. The bottom of the connecting rod 61 is fixed with a round block 62, and the round block 62 is provided on the top of the cable tray body 4; two limiting rods 65 are fixed between the two connecting plates 63, and the lifting frame 6 is slidably connected to the limiting rod 65; a second motor 66 is provided at the bottom of the reciprocating screw rod 64.

[0039] The round block 62 provided by the present invention is used to press the cable tray body 4 when in use. When cutting is required, the second motor 66 is turned on, and the reciprocating screw rod 64 is driven to rotate by the output shaft of the second motor 66, and the lifting frame 6 is driven to move downward by the reciprocating screw rod 64, and the connecting rod 61 is driven downward by the lifting frame 6, and the round block 62 is driven downward by the connecting rod 61 to press the cable tray body 4 to prevent it from shaking with the cutting knife 52 during cutting; when transportation is required, it is necessary to drive the reciprocating screw rod 64 to rotate in the opposite direction, and the lifting frame 6 is driven to move upward by the reciprocating screw rod 64, and the connecting rod 61 is driven upward by the lifting frame 6, and the round block 62 is driven upward by the connecting rod 61, so as to release the pressure on the cable tray body 4 and facilitate the transportation of the cable tray body 4.

[0040] like Figure 1 As shown, an L-shaped plate 7 is fixedly connected to the side wall of one end of the roller conveyor 1 away from the limiting roller 2 , a cylinder 71 is fixedly connected to the top of the L-shaped plate 7 , and a push plate 72 is fixedly connected to the output end of the cylinder 71 .

[0041] When the push plate 72 provided by the present invention is in use, when the remaining material at the end of the cable tray body 4 is insufficient for cutting, the cutting knife 52 no longer works, and the cylinder 71 is opened by the system control, and the push plate 72 is driven to move by the output end of the cylinder 71, and the cable tray body 4 is pushed to the side of the roller conveyor 1 by the push plate 72, and is transported from the edge of the roller conveyor 1 to the designated position, so as to prevent the remaining material from being mixed with the cable tray body 4 of qualified length.

[0042] like Figure 5 As shown, the end of the limit block 3 close to the limit roller 2 is fixed with a side plate 33, and a displacement sensor 331 is installed at the bottom of the side plate 33; the displacement sensor 331 is electrically connected to the electric push rod 51, the second motor 66 and the cylinder 71.

[0043] The displacement sensor 331 provided by the present invention is used to monitor the length of the cable tray body 4 when in use. When the cable tray body 4 moves on the roller conveyor 1, the length of the cable tray body 4 is monitored by the displacement sensor 331. When the length of the cable tray body 4 reaches the set value, the second motor 66 is controlled by the system, and the round block 62 is driven by the second motor 66 to press the cable tray body 4, and then the electric push rod 51 is controlled to drive the cutting knife 52 to cut. When the length of the cable tray body 4 cannot reach the set value, it means that the cable tray body 4 is transported to the last residual material position and cannot be cut, then the second motor 66 and the electric push rod 51 do not work, but the cylinder 71 is controlled by the system to open, and the cable tray body 4 is pushed to one side by the cylinder 71 for separate transportation.

[0044] Working principle: The width of the cable tray body 4 is different. When the width of the cable tray body 4 needs to be limited and fixed, the first motor 22 needs to be turned on, and the bidirectional ball screw 26 is driven to rotate by the output shaft of the first motor 22, and the two vertical plates 23 are driven to move by the bidirectional ball screw 26, and the bottom plate 21 is driven to move by the vertical plate 23, and the limiting roller 2 and the positioning block 28 are driven to move by the bottom plate 21 until the limiting roller 2 clamps the cable tray body 4 in the middle of the roller conveyor 1, and at the same time, the positioning block 28 drives the limiting block 3 to move to both sides of the cable tray body 4, so that the cable tray body 4 can pass through the limiting block 3; during the movement of the vertical plate 23, the vertical plate 23 slides on the two guide rods 25, and the guide rods 25 limit the vertical plate 23 to move in the horizontal direction.

[0045] When the height is adjusted, the rotary block 322 is rotated, the rotary block 322 drives the rotating shaft to rotate, the rotating shaft drives the gear 321 to rotate, the gear 321 drives the rack 31 to move up and down, and the rack 31 drives the limit block 3 to move up and down until it is adjusted to a suitable position, thereby realizing the function of quickly adjusting the height of the limit block 3; when the ratchet 323 is driven to rotate by the rotating shaft, the ratchet 324 is driven to swing downward by the ratchet 323, and the ratchet 324 is always inserted between the ratchet wheels 323 under the action of the first spring 326. At this time, the top of the ratchet 324 is pressed by the slider 327, and the ratchet 324 will not rotate upward. When the locking cam 328 is in the unlock position, the locking cam 321 is unlocked and the locking cam 322 is unlocked, and the locking cam 321 is unlocked, so that the locking cam 321 is unlocked.

[0046] When the cable tray body 4 moves on the roller conveyor 1, the length of the cable tray body 4 is monitored by the displacement sensor 331. When the length of the cable tray body 4 reaches the set value, the system controls the second motor 66, and the reciprocating screw 64 is driven to rotate by the output shaft of the second motor 66. The reciprocating screw 64 drives the lifting frame 6 to move downward, and the lifting frame 6 drives the connecting rod 61 to move downward, and the connecting rod 61 drives the round block 62 to move downward, so as to press the cable tray body 4 to prevent it from shaking with the cutting knife 52 during cutting; then, the electric push rod 51 is controlled, and the output end of the electric push rod 51 is used to drive the electric push rod 51 to move downward. It drives the connecting seat 53 to move, and drives the cutting knife 52 to move through the connecting seat 53 to achieve cutting of the cable tray body 4; when the length of the cable tray body 4 cannot reach the set value, it means that the cable tray body 4 is transported to the last residual material position and cannot be cut, then the second motor 66 and the electric push rod 51 do not work, but the system controls the cylinder 71 to open, and drives the push plate 72 to move through the output end of the cylinder 71, and pushes the cable tray body 4 to one side of the roller conveyor 1 through the push plate 72, and transports it from the edge of the roller conveyor 1 to the designated position to prevent the residual material from being mixed with the cable tray body 4 of qualified length.

[0047] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable tray forming and slitting machine, comprising a roller conveyor (1); a limiting mechanism is provided at the bottom of the roller conveyor (1); two positioning blocks (28) are provided at one end of the limiting mechanism close to the middle of the roller conveyor (1); and an adjustment mechanism is provided on the positioning blocks (28); and the characteristics are: The adjustment mechanism comprises a limit block (3) slidably connected to two positioning blocks (28) via a limit groove (27); a rack (31) is fixedly connected to the outer side wall of each limit block (3); two fixed rods (32) are symmetrically fixedly connected to the top of the roller conveyor (1), and a gear (321) is rotatably connected to the fixed rod (32) via a rotating shaft, and each gear (321) is engaged with an adjacent rack (31); a rotating block (322) is fixedly connected to one end of the rotating shaft, and a ratchet (323) is fixedly connected to the other end of the rotating shaft, and a non-return mechanism is provided on one side of each ratchet (323); and a cable tray body (4) is provided on the roller conveyor (1).

2. A cable tray forming and slitting machine according to claim 1, characterized in that: The limiting mechanism comprises two fixed plates (24) fixedly connected to the bottom of the roller conveyor (1); a bidirectional ball screw (26) is rotatably connected between the two fixed plates (24) through a bearing, and two vertical plates (23) are threadedly connected to the bidirectional ball screw (26); two guide rods (25) are fixedly connected between the two fixed plates (24), and the vertical plates (23) slide on the guide rods (25); the tops of the vertical plates (23) are fixedly connected to the bottom plates (21), and the positioning blocks (28) are respectively fixedly connected to the tops of the two bottom plates (21); a plurality of limiting rollers (2) are rotatably connected to the other end of the bottom plate (21); a first motor (22) is fixedly connected to one of the fixed plates (24), and the output shaft of the first motor (22) is fixedly connected to one end of the bidirectional ball screw (26).

3. The cable tray forming and slitting machine according to claim 2, characterized in that: The non-return mechanism includes a pawl (324) rotatably connected to two fixed rods (32) through a pin shaft, and the pawls (324) are all engaged with the ratchet (323); a slant plate (325) is fixed to the side wall of the fixed rod (32), and a first spring (326) is fixed between the slant plate (325) and the pawl (324); a slider (327) is slidably connected to the top of the pawl (324); one end of the slider (327) is inserted and slid in the fixed rod (32); one end of the slider (327) close to the fixed rod (32) is rotatably connected to the plug post (328), one end of the plug post (328) slides in the fixed rod (32), and one end of the plug post (328) is magnetically fitted with the fixed rod (32).

4. The cable tray forming and slitting machine according to claim 3, characterized in that: A conveying trough is provided in each of the limit blocks (3); the cable tray body (4) moves in the conveying trough; a plurality of rolling balls (35) are rotatably connected to the top inner wall of the conveying trough; and a plurality of first side rollers (34) are rotatably connected to the side wall of the conveying trough close to the positioning block (28).

5. The cable tray forming and slitting machine according to claim 4, characterized in that: A plurality of slide bars (36) are slidably connected to the side wall of the conveying trough away from the positioning block (28); one end of the plurality of slide bars (36) is arranged in the conveying trough and is fixedly connected to a mounting seat (361); a plurality of second side rollers (362) are rotatably connected in the mounting seat (361); a second spring (363) is sleeved on the outer wall of each slide bar (36), and the two ends of the second spring (363) are respectively fixedly connected to the mounting seat (361) and the side wall of the conveying trough.

6. The cable tray forming and slitting machine according to claim 5, characterized in that: The tops of the two fixing rods (32) are fixedly connected to a fixing frame (5), the top of the fixing frame (5) is fixedly connected to an electric push rod (51), the output end of the electric push rod (51) is fixedly connected to a connecting seat (53), and a cutting knife (52) is inserted into the connecting seat (53), and the cutting knife (52) is made of alloy material.

7. The cable tray forming and slitting machine according to claim 6, characterized in that: Two vertical rods (54) are fixedly connected to the top of the connecting seat (53), and the vertical rods (54) are slidably connected to the fixing frame (5); the outer sides of the vertical rods (54) are sleeved with third springs (55), and the two ends of the third springs (55) are respectively fixed between the connecting seat (53) and the fixing frame (5).

8. The cable tray forming and slitting machine according to claim 7, characterized in that: Two connecting plates (63) are fixedly connected to the side walls of the fixed frame (5); a reciprocating screw rod (64) is rotatably connected between the two connecting plates (63) via a bearing; a lifting frame (6) is threadedly connected to the reciprocating screw rod (64); two connecting rods (61) are symmetrically fixedly connected to the two ends of the lifting frame (6); the bottoms of the connecting rods (61) are fixedly connected to round blocks (62), and the round blocks (62) are arranged on the top of the cable tray body (4); two limiting rods (65) are fixedly connected between the two connecting plates (63), and the lifting frame (6) is slidably connected to the limiting rods (65); a second motor (66) is provided at the bottom of the reciprocating screw rod (64).

9. The cable tray forming and slitting machine according to claim 8, characterized in that: An L-shaped plate (7) is fixedly connected to the side wall of one end of the roller conveyor (1) away from the limiting roller (2), a cylinder (71) is fixedly connected to the top of the L-shaped plate (7), and a push plate (72) is fixedly connected to the output end of the cylinder (71).

10. The cable tray forming and slitting machine according to claim 9, characterized in that: One end of the limiting block (3) close to the limiting roller (2) is fixedly connected to a side plate (33), and a displacement sensor (331) is installed at the bottom of the side plate (33); the displacement sensor (331) is electrically connected to the electric push rod (51), the second motor (66) and the cylinder (71).

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