CN215969974U - Sheet material traction mechanism - Google Patents

Abstract

The application discloses sheet material drive mechanism relates to panel processing equipment technical field, and it includes the support body, be provided with down traction frame and last traction frame along self direction of height parallel interval on the support body, it sets up along vertical direction lift to go up the traction frame, all rotate on traction frame and the last traction frame down and be provided with the carry over pinch rolls, and arbitrary the direction of feed of the axis of rotation of carry over pinch rolls all with self axis coaxial and equal perpendicular to sheet material, be provided with on the support body and be used for driving carry over pinch rolls pivoted power component, be provided with on the support body and be used for driving the drive assembly that the traction frame goes up and down, be provided with on the support body and be used for reducing the adjusting part that the sheet material took place the card to pause at the feeding in-process. The plate traction mechanism has the effects of reducing the occurrence of the situation that the plate is clamped between the upper traction frame and the lower traction frame in the plate traction process, and improving the stability of the plate traction mechanism in traction of the plate as the feeding motion.

Description

Sheet material traction mechanism

Technical Field

The application relates to the technical field of plate processing equipment, in particular to a plate traction mechanism.

Background

The plate tractor is a mechanical appliance commonly used in the field of manufacturing plates such as PET plastic plates and the like. In the production process of the plate, if the formed plate needs to be continuously processed, the plate is extruded from an extruder and is sequentially conveyed to a cooling station, a rolling forming station and a cutting station for processing, and a plate tractor serves as a conveying power source to drive the plate to move.

In related industries, a plate tractor comprises a rack, wherein an upper traction roller set and a lower traction roller set are arranged on the rack, and a first driving assembly and a second driving assembly which are used for respectively driving the upper traction roller set and the lower traction roller set to rotate are arranged on the rack; and the frame is also provided with a lifting component for driving the upper traction roller set to lift. When the device is actually used, a worker firstly measures the thickness of a plate to be pulled; then, the height of the upper traction roller set is adjusted through the lifting assembly, so that the upper traction roller set and the lower traction roller set clamp the plate and ensure that the plate does normal feeding movement; then, the worker stretches the plate between the upper traction roller set and the lower traction roller set; the first driving assembly and the second driving assembly respectively drive the upper traction roller set and the lower traction roller set to rotate, and under the action of the friction force, the upper traction roller set and the lower traction roller set clamp the plate and push the plate to move forwards.

In view of the above-mentioned related art, the inventor believes that, due to errors in the production process of the plate material, the thicknesses of the same plate material are not completely consistent, and the thickness of the same plate material at certain positions is slightly larger than the thicknesses of the plate material at the surrounding positions; when the plate tractor is used for dragging a plate, when the thickness of a certain part of the plate is larger than that of a measuring end of the plate, the distance between the upper traction roller set and the lower traction roller set is fixed, and the thicker position of the plate is clamped between the upper traction roller set and the lower traction roller set, so that the normal operation of plate conveying operation is influenced, and the part to be improved exists.

SUMMERY OF THE UTILITY MODEL

In order to guarantee the normal conveying operation of sheet material, reduce the condition that the sheet material takes place the card pause in traction process, this application provides a sheet material drive mechanism.

The application provides a sheet material drive mechanism adopts following technical scheme:

a sheet material traction mechanism comprises a frame body, wherein a lower traction frame and an upper traction frame are arranged on the frame body in parallel at intervals along the height direction of the frame body, and the upper traction frame is arranged in a lifting manner along the vertical direction; all rotate on traction frame and the last traction frame down and be provided with the carry over pinch rolls, and arbitrary the direction of feed of the rotation axis of carry over pinch rolls all with self axis coaxial and equal perpendicular to sheet material, be provided with on the support body and be used for driving carry over pinch rolls pivoted power component, be provided with on the support body and be used for driving the drive assembly that the traction frame goes up and down, be provided with on the support body and be used for reducing the sheet material and take place the adjusting part that blocks and pause at the feeding in-process.

By adopting the technical scheme, when the plate is dragged, a worker firstly starts the driving assembly, and the driving assembly drives the upper traction frame to lift along the vertical direction, so that the distance between the upper traction frame and the lower traction frame is equal to the thickness of the plate; then, the length direction of the plate is perpendicular to the axial direction of the traction roller, and the end part of the plate is inserted between the upper traction frame and the lower traction frame; then, the power assembly drives corresponding traction rollers on the upper traction frame and the lower traction frame to rotate, so that the corresponding traction rollers clamp the plate and drive the plate to perform feeding motion; in the plate feeding process, when the thickness of a certain part of the plate is larger than that of the measuring end of the plate, the adjusting assembly adjusts the distance between the upper traction frame and the lower traction frame in time, so that the plate smoothly passes through the space between the upper traction frame and the lower traction frame, the phenomenon that the plate is clamped between the upper traction frame and the lower traction frame in the plate traction process is reduced, and the stability of the plate traction mechanism for drawing the plate to perform feeding motion is effectively improved.

Preferably, the adjusting assembly comprises an adjusting cylinder for adjusting the height of the upper traction frame in the plate feeding process, the adjusting cylinder is fixed on a frame body on the upper side of the upper traction frame, and the end part of a piston rod of the adjusting cylinder points to the upper traction frame and is connected with the upper traction frame through a connecting piece.

Through adopting above-mentioned technical scheme, go up the traction frame with the help of the actuating cylinder drive and go up and down, and then adjust the distance between lower traction frame and the last traction frame, drive simple structure helps saving the manufacturing cost of enterprise.

Preferably, the connecting piece comprises a cylinder connecting rod, and the cylinder connecting rod is coaxially fixed at the end part of the piston rod of the adjusting cylinder; the connecting piece also comprises two swing arms which are rotatably arranged at one end of the air cylinder connecting rod, which is far away from the adjusting air cylinder, one ends of the two swing arms in the length direction are hinged with the air cylinder connecting rod at one point, and the end parts of the two swing arms, which are far away from the hinged point of the two swing arms and the air cylinder connecting rod, are respectively positioned at two sides of the air cylinder connecting rod along the plate feeding direction;

the connecting piece further comprises two traction rods rotatably arranged on any swing arm, two traction rods are arranged at one end of any swing arm, which is far away from a cylinder connecting rod, one ends of the two traction rods on the same swing arm in the length direction are hinged with the corresponding swing arm at one point, and one end of any traction rod on the same swing arm, which is far away from the hinged point of the traction rod and the corresponding swing arm, is rotatably connected with the upper traction frame;

one end of the other traction rod on the same swing arm, which is far away from the hinged point of the other traction rod and the corresponding swing arm, is hinged with a triangular crank arm, the hinged point of any swing arm and the corresponding traction rod is positioned between two end points of the two corresponding traction rods, which are far away from each other, and the rotating axis direction of any traction rod is parallel to the axis direction of the traction roller;

one end of the longest side of any triangular crank arm, which is far away from the cylinder connecting rod, is supported on the lower side of the upper traction frame and is connected with the upper traction frame in a sliding manner, and one end of the longest side of any triangular crank arm, which is close to the cylinder connecting rod, is hinged with a corresponding traction rod; and any side, deviating from the longest side of the triangular crank arm, of the triangular crank arm is rotatably connected with the frame body, and any longest side of the triangular crank arm is located on the upper side of the hinged point of the triangular crank arm and the frame body.

By adopting the technical scheme, when the thickness of the plate between the lower traction frame and the upper traction frame is increased, the piston rod of the adjusting cylinder is contracted, the piston rod of the adjusting cylinder drives the cylinder connecting rod to vertically move upwards, and the cylinder connecting rod simultaneously drives the corresponding swing arm to move towards one end close to the cylinder connecting rod; when the corresponding swing arm moves, the corresponding traction rod is driven to move to one side close to the connecting rod of the air cylinder, so that one end, hinged with the traction rod, of the corresponding triangular crank arm rotates downwards around a hinged point of the triangular crank arm and the traction rod and a hinged point of the triangular crank arm and the frame body, and the end, hinged with the traction rod, of the corresponding triangular crank arm deviates from the end, hinged with the traction rod, of the corresponding triangular crank arm and the upper traction frame slides relatively and is lifted upwards, so that the upper traction frame is lifted, and the distance between the upper traction frame and the lower traction frame is adjusted; the driving structure is simple, the two triangular crank arms are driven to rotate simultaneously by means of the same adjusting cylinder, and the stability of the lifting process of the upper traction frame is improved.

Preferably, the driving assembly comprises a lifting screw and a driving piece, the lifting screw is vertical, the lifting screw is rotatably connected with the frame body, and the rotation axis direction of the lifting screw is overlapped with the axis direction of the lifting screw; a lifting nut seat is sleeved on the lifting screw in a threaded manner, the lifting nut seat is in threaded connection with the lifting screw in the vertical direction, and one side, close to the upper traction frame, of the lifting nut seat is in rotating connection with the triangular crank arm; the driving piece comprises a driving motor, and the driving motor is in transmission connection with the lifting screw rod.

By adopting the technical scheme, when in actual use, the driving motor drives the lifting screw rod to rotate, and the lifting nut seat is connected with the lifting screw rod in a threaded manner and is hinged with the upper traction frame; when the lifting screw rotates, the lifting nut seat rotates around the axis of the lifting nut seat relative to the lifting screw and vertically lifts along the axial direction of the lifting screw; the lifting nut seat is driven to lift while vertically lifting, so that the upper traction frame is driven to lift; the driving structure is simple, and the manufacturing cost of enterprises is saved.

Preferably, the frame body is further provided with a measuring assembly for measuring the thickness of the plate.

By adopting the technical scheme, before the end part of the plate material stretches into the space between the upper traction frame and the lower traction frame, a worker uses the measuring assembly on the frame body to measure the thickness of the plate material, the measuring assembly replaces a measuring tool to find and then measures the plate material, the time required for measuring the thickness of the plate material is saved, and the working efficiency of plate material traction operation is effectively improved.

Preferably, the measuring assembly comprises a clamping piece and a measuring piece, the clamping piece comprises a roller rotatably arranged on the lower traction frame and a front detection lower carrier roller capable of lifting along the vertical direction on the upper traction frame, the roller and the front detection lower carrier roller are both arranged in parallel to the traction roller, and the roller and the front detection lower carrier roller are both arranged on one side of the frame body at the upstream side in the sheet feeding direction; the clamping piece further comprises a measuring cylinder for driving the front detection lower carrier roller to lift; the measuring part comprises a first displacement sensor for detecting the telescopic amount of the piston rod of the measuring cylinder, and the first displacement sensor is electrically connected with the measuring cylinder and the driving motor respectively.

By adopting the technical scheme, when the thickness of the plate is measured, a worker firstly starts the measuring cylinder, the measuring cylinder drives the front detection lower carrier roller to lift until the roller and the front detection lower carrier roller clamp the plate and can push the plate to perform feeding motion, and then the roller and the front detection lower carrier roller stop; meanwhile, the first displacement sensor detects and measures the expansion amount of the piston rod of the air cylinder, so that the thickness dimension of the plate is obtained; then, the first displacement sensor transmits a signal to a corresponding controller, the corresponding controller controls a driving motor to start, the driving motor drives a lifting screw to rotate, the lifting screw drives a lifting nut seat to move, and the distance between an upper traction frame and a lower traction frame is adjusted to be equal to the thickness of the plate, so that normal traction operation of a traction roller on the upper traction frame and a traction roller on the lower traction frame on the plate is guaranteed; the sheet thickness measuring process is high in automation degree, simple in measuring operation and beneficial to improving the working efficiency of sheet traction operation.

Preferably, the frame body is provided with a second displacement sensor for detecting the displacement of the lifting nut seat, and the second displacement sensor is electrically connected with the driving motor and the first displacement sensor respectively.

By adopting the technical scheme, when in actual use, after the first displacement sensor detects the telescopic amount of the piston rod of the measuring cylinder, the signal is transmitted to the corresponding controller, the corresponding controller controls the driving motor to start, and the driving motor drives the lifting screw rod to rotate so as to adjust the height of the lifting nut seat on the lifting screw rod; then, the second displacement sensor monitors the displacement of the lifting nut seat; when the value displayed on the second displacement sensor is equal to the value displayed on the first displacement sensor, the second displacement sensor transmits a signal to a corresponding controller, and the corresponding controller controls the driving motor to stop, so that the distance between the upper traction frame and the lower traction frame is equal to the thickness of the plate; the automation degree of the adjusting process of the distance between the upper traction frame and the lower traction frame is high, and the working efficiency of plate traction operation is further improved.

Preferably, the power assembly comprises a traction chain wheel in transmission connection with the traction roller; the power assembly comprises a servo motor for driving a traction chain wheel arranged on the lower traction frame to rotate; a first speed reducer is connected between the servo motor and the corresponding traction chain wheel; the power assembly also comprises a second speed reducer used for driving a traction chain wheel arranged on the upper traction frame to rotate; the input shaft of the first speed reducer is in transmission connection with the input shaft of the second speed reducer and drives the input shaft of the second speed reducer to rotate; universal couplings are connected between the first speed reducer and the corresponding traction chain wheel and between the second speed reducer and the corresponding traction chain wheel.

By adopting the technical scheme, when the plate traction mechanism is used for carrying out traction operation on a plate, a worker starts a servo motor, and the servo motor drives a corresponding traction chain wheel arranged on the lower traction frame to rotate; the first speed reducer drives the second speed reducer to operate while reducing the rotating speed and increasing the torque, so that the second speed reducer drives a corresponding traction chain wheel arranged on the upper traction frame to rotate; the universal coupling is used for ensuring that the corresponding chain wheel on the lower traction frame and the corresponding chain wheel on the upper traction frame normally rotate when the corresponding chain wheel on the first speed reducer output shaft and the lower traction frame are not coaxial and the corresponding chain wheel on the second speed reducer output shaft and the upper traction frame are not coaxial; the traction roller on the upper traction frame and the traction roller on the lower traction frame are driven by the servo motor to rotate simultaneously, so that the uniformity of the driving force of the traction roller on the upper traction frame and the traction roller on the lower traction frame in the driving process can be improved, and the stability of the sheet feeding process can be further improved.

In summary, the present application includes at least one of the following beneficial technical effects:

by means of the adjusting assembly arranged on the frame body, the problem that the upper traction frame and the lower traction frame are blocked in the process of drawing the plate due to uneven thickness of the plate is reduced, and normal operation of plate drawing operation is effectively guaranteed;

the height of the upper traction frame is adjusted by utilizing the adjusting cylinder and the connecting piece, the situation that the plate is clamped between the upper traction frame and the lower traction frame due to the increase of the thickness of the plate in the plate traction process of the plate traction mechanism is effectively reduced, and the stability of the plate traction mechanism for driving the plate to move is effectively improved;

the frame body is provided with the measuring cylinder and the first displacement sensor, so that convenience in sheet thickness measuring operation is effectively improved; meanwhile, the upper traction frame is lifted by virtue of the threaded connection of the lifting screw and the lifting nut seat, the displacement of the lifting nut seat is monitored through the second displacement sensor, the second displacement sensor is electrically connected with the first displacement sensor, the matching between the distance between the upper traction frame and the lower traction frame and the thickness of the plate is ensured, and the normal operation of plate traction operation is further ensured.

Drawings

Fig. 1 is a schematic axial view mainly showing the overall structure of the sheet material traction mechanism in the embodiment of the present application.

Fig. 2 is an enlarged view of a portion a in fig. 1, and is mainly used for embodying the overall structure of the measuring unit.

Fig. 3 is a schematic axial view mainly showing a mounting position of a drive motor in an embodiment of the present application.

Fig. 4 is an enlarged view of a portion B in fig. 3, and is mainly used for embodying an installation position of the first right-angle commutator.

Fig. 5 is an enlarged view of a portion C of fig. 3, mainly for embodying the mounting position of the supporting block.

Fig. 6 is a partially enlarged view of the embodiment of the present application mainly showing the mounting position of the traction sprocket.

Reference numerals: 1. a frame body; 11. a lower traction frame; 111. a lower support frame; 12. an upper traction frame; 121. an upper support frame; 1211. a kidney-shaped hole; 2. a traction roller; 3. a power assembly; 31. a traction sprocket; 311. a traction gear; 312. a drag chain; 32. a servo motor; 33. a first decelerator; 331. a first gear; 34. a second decelerator; 341. a second gear; 35. a universal coupling; 4. a measurement assembly; 41. a clamping member; 411. a drum; 412. front detection lower carrier rollers; 413. a measuring cylinder; 42. a first displacement sensor; 5. a drive assembly; 51. a lifting screw; 511. a lifting nut seat; 52. a drive member; 521. a drive motor; 5211. a first right-angle commutator; 5212. a second right angle commutator; 5213. a shaft connector; 5214. a drive shaft; 5215. a right-angle reducer; 53. a second displacement sensor; 6. an adjustment assembly; 61. an adjusting cylinder; 62. a connecting member; 621. a cylinder connecting rod; 622. swinging arms; 623. a draw bar; 624. a triangular crank arm; 6241. and (7) a supporting block.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses sheet material drive mechanism.

Referring to fig. 1, a sheet material traction mechanism comprises a frame body 1, and a lower traction frame 11 and an upper traction frame 12 which are sequentially arranged along the height direction of the frame body 1, wherein the length directions of the lower traction frame 11 and the upper traction frame 12 are both parallel to the length direction of the frame body 1, traction rollers 2 for drawing a sheet material to perform feeding motion are respectively arranged on the lower traction frame 11 and the upper traction frame 12, the rotating axis of any traction roller 2 is coaxial with the self axis of the corresponding traction roller 2, the axial direction of any traction roller 2 is parallel to the length direction of the frame body 1, and the axial direction of any traction roller 2 is perpendicular to the feeding direction of the sheet material; one end of the frame body 1, which is positioned in the axial direction of the traction roller 2, is provided with a power assembly 3 for driving the traction roller 2 to rotate; a measuring component 4 for measuring the thickness of the plate is arranged on one side of the frame body 1, which is located at the upstream of the plate feeding direction, and driving components 5 for driving the upper traction frame 12 to ascend and descend along the vertical direction are arranged on the two sides of the frame body 1 in the length direction.

In practical use, after being extruded and molded, the plate is drawn to the upstream side of the plate drawing mechanism in the plate feeding direction; then, the staff measures the thickness of the plate by using the measuring component 4; then, the driving assembly 5 drives the upper traction frame 12 to lift along the vertical direction, and the distance between the traction roller 2 on the upper traction frame 12 and the traction roller 2 on the lower traction frame 11 is adjusted to be equal to the thickness of the plate; then, the worker stretches the end part of the sheet material in the length direction between the traction roller 2 on the upper traction frame 12 and the traction roller 2 on the lower traction frame 11; the power assembly 3 is started immediately, and the power assembly 3 drives the traction roller 2 on the upper traction frame 12 and the traction roller 2 on the lower traction frame 11 to rotate in opposite directions; when the traction roller 2 on the upper traction frame 12 and the traction roller 2 on the lower traction frame 11 rotate, the sheet is pushed to perform feeding motion along the width direction of the frame body 1 under the action of friction force, so that the sheet traction motion is completed.

Referring to fig. 2, a lower support frame 111 and an upper support frame 121 are respectively fixed on the upper sides of the lower traction frame 11 and the upper traction frame 12 in the sheet feeding direction, and one lower support frame 111 is fixed on each of the two sides of the lower traction frame 11 in the length direction; the upper support frames 121 are fixed on both sides of the upper traction frame 12 in the length direction, a waist-shaped hole 1211 is formed in any one of the upper support frames 121, any one of the waist-shaped holes 1211 penetrates through the corresponding upper support frame 121 in the length direction of the frame body 1, and the length direction of any one of the waist-shaped holes 1211 is vertical.

The measuring assembly 4 comprises a clamping piece 41, the clamping piece 41 comprises a roller 411 which is rotatably arranged between the two lower supporting frames 111, and two axial ends of the roller 411 are respectively rotatably connected with the two lower supporting frames 111; the rotation axis of the roller 411 is coaxial with the axis of the roller, the axis direction of the roller 411 is parallel to the length direction of the frame body 1, and the upper side surface of the roller 411 and the upper side surface of the traction roller 2 arranged on the lower traction frame 11 are positioned in the same horizontal plane; the clamping member 41 further comprises a front detection lower carrier roller 412 rotatably arranged between the two upper support frames 121, the front detection lower carrier roller 412 is correspondingly arranged right above the roller 411, the rotation axis of the front detection lower carrier roller 412 is coaxially arranged with the axis of the front detection lower carrier roller 412, and the axis direction of the front detection lower carrier roller 412 is parallel to the axis direction of the roller 411; the clamping member 41 further comprises measuring cylinders 413 arranged on the upper support frames 121, one measuring cylinder 413 is fixed on the upper side of any upper support frame 121, a piston rod of any measuring cylinder 413 is vertically arranged, and the end part of the piston rod of any measuring cylinder 413 points to the lower support frame 111; two axial ends of the front detection lower carrier roller 412 respectively penetrate through the corresponding kidney-shaped holes 1211 and are rotatably connected with the end parts of the piston rods of the corresponding measurement cylinders 413.

The measuring assembly 4 further comprises first displacement sensors 42 arranged at two axial ends of the front detection lower carrier roller 412, and in this embodiment of the present application, the first displacement sensors 42 are telescopic displacement sensors; any one first displacement sensor 42 is vertically arranged, the measuring end of any one first displacement sensor 42 is rotatably connected with the shaft end of the telescopic rod corresponding to the front detection lower carrier roller 412, and the other end of any one first displacement sensor 42 is fixedly connected with the lower support frame 111; the first displacement sensor 42 is electrically connected to the measuring cylinder 413 and detects the amount of expansion of the piston rod of the measuring cylinder 413, so as to obtain the thickness of the sheet.

Referring to fig. 3, the driving assembly 5 includes two lifting screws 51 and a driving member 52, two lifting screws 51 are vertically disposed at two ends of the frame body 1 in the length direction, the lifting screws 51 at two ends of the frame body 1 in the length direction are symmetrically disposed, and any one of the lifting screws 51 is rotatably disposed around its axis; the driving member 52 includes a driving motor 521, and the driving motor 521 is fixed to the frame body 1 located below the lower traction frame 11.

Referring to fig. 4, the axial direction of the output shaft of the driving motor 521 is parallel to the length direction of the frame 1, the end of the output shaft of the driving motor 521 is coaxially fixed with a first right-angle commutator 5211, and two output ends of the first right-angle commutator 5211 are respectively located at two sides of the first right-angle commutator 5211 corresponding to the width direction of the frame 1; any output end of the first right-angle commutator 5211 is connected with a second right-angle commutator 5212, and the corresponding output end of the first right-angle commutator 5211 is in transmission connection with the input end of the corresponding second right-angle commutator 5212 through a shaft connecting piece 5213; meanwhile, two output ends of any one second right-angle commutator 5212 are respectively located at two sides of the second right-angle commutator 5212 corresponding to the length direction of the frame body 1, any output end of the second right-angle commutator 5212 is connected with a transmission shaft 5214, the axial direction of any transmission shaft 5214 is parallel to the length direction of the frame body 1, and one end of any transmission shaft 5214 axially departing from the corresponding second right-angle commutator 5212 is in transmission connection with the corresponding lifting screw 51 through a right-angle reducer 5215; meanwhile, the first displacement sensor 42 and the driving motor 521 are electrically connected to a controller.

When in actual use, after the first displacement sensor 42 detects the thickness of the plate, the corresponding displacement signal is transmitted to the corresponding controller, and the corresponding controller controls the driving motor 521 to start; the first right-angle reverser 5211 transmits the driving force of the drive motor 521 to the shaft connection 5213; then, the rotational speed is transmitted to a transmission shaft 5214 through a second right-angle commutator 5212, and finally transmitted to the lifting screws 51 through a right-angle reducer 5215, thereby completing driving of each lifting screw 51; the driving of one driving motor 521 to four lifting screws 51 is realized through the first right-angle commutator 5211, the second right-angle commutator 5212 and the right-angle speed reducer 5215, the driving force is uniform, the uniformity of the distance between the upper traction frame 12 and the lower traction frame 11 is effectively improved, and the normal feeding motion of the plate materials is favorably ensured.

Referring to fig. 5, each lifting screw 51 is sleeved with a lifting nut seat 511, each lifting nut seat 511 is rotatably connected with the upper traction frame 12, each lifting nut seat 511 is used for driving the upper traction frame 12 to lift along the vertical direction, each lifting nut seat 511 is in threaded connection with the lifting screw 51 along the vertical direction, and one side, close to the upper traction frame 12, of each lifting nut seat 511 is rotatably connected with the upper traction frame 12. Meanwhile, a second displacement sensor 53 is disposed on the frame body 11 at a position close to any of the lifting nut seats 511, the second displacement sensor 53 is used for measuring a displacement of the lifting nut seat 511, and the second displacement sensor 53 is electrically connected to the controller electrically connected to the first displacement sensor 42 and the driving motor 521.

When the device is actually used, a worker firstly extends the end part of the sheet material in the length direction between the roller 411 and the front detection lower carrier roller 412; then, the measuring cylinder 413 is started, the measuring cylinder 413 drives the front detection lower carrier roller 412 to vertically lift until a worker pushes the plate, and the plate stops when the plate can normally feed between the roller 411 and the front detection lower carrier roller 412; meanwhile, the first displacement sensor 42 detects the expansion amount of the piston rod of the measuring cylinder 413 to obtain the thickness of the plate; then, the first displacement sensor 42 transmits the thickness information of the plate to the corresponding controller, the corresponding controller controls the driving motor 521 to start, and the driving motor 521 drives the lifting screw 51 to rotate; because the lifting nut seat 511 is in threaded fit with the lifting screw 51, the lifting screw 51 rotates and drives the lifting nut seat 511 to vertically lift along the height direction of the lifting screw 51, and the lifting nut seat 511 drives the upper traction frame 12 to lift; meanwhile, the second displacement sensor 53 monitors the displacement of the lifting nut seat 511; when the displacement monitored by the second displacement sensor 53 is equal to the displacement monitored by the first displacement sensor 42, the corresponding controller controls the driving motor 521 to stop, so that the height between the upper traction frame 12 and the lower traction frame 11 is equal to the thickness of the plate, thereby completing the height adjustment of the upper traction frame 12.

Referring to fig. 6, a plurality of traction rollers 2 are respectively arranged in parallel along the width direction of the upper traction frame 12 and the width direction of the lower traction frame 11 at intervals; the power assembly 3 comprises traction chain wheels 31 arranged at two axial ends of the traction rollers 2, each traction chain wheel 31 comprises a traction gear 311 and a traction chain 312, two traction gears 311 are coaxially sleeved at two ends of any one traction roller 2, each traction chain 312 is sleeved between two adjacent traction rollers 2 on the upper traction frame 12 and the lower traction frame 11, and each traction chain 312 is meshed with and in transmission connection with the traction gear 311 at the same end of the corresponding traction roller 2; the adjacent traction chain wheels 31 are mutually connected in a transmission way and drive the traction rollers 2 on the upper traction frame 12 and the traction rollers 2 on the lower traction frame 11 to rotate.

The power assembly 3 comprises a servo motor 32, the servo motor 32 is fixed on one side of the frame body 1 in the length direction, a first speed reducer 33 is arranged between the servo motor 32 and one of the traction rollers 2 on the lower traction frame 11, and an output shaft of the servo motor 32 is in transmission connection with an input shaft of the first speed reducer 33 through a coupler; in order to ensure the normal driving of the first speed reducer 33 to the corresponding traction chain wheel 31, a universal coupling 35 is connected between the output shaft of the first speed reducer 33 and the corresponding traction roller 2 on the lower traction frame 11; meanwhile, the power assembly 3 further comprises a second speed reducer 34, and an output shaft of the second speed reducer 34 is in transmission connection with one of the traction rollers 2 on the upper traction frame 12 through a coupler; in this embodiment of the present application, the first reduction gear 33 and the second reduction gear 34 each employ a right-angle reduction gear; the input shaft of the first speed reducer 33 extends out of the shell, and the end part of the output shaft of the first speed reducer 33 is coaxially and fixedly sleeved with a first gear 331; the second speed reducer 34 is fixed on the upper side of the shell of the first speed reducer 33, the input shaft of the second speed reducer 34 extends out of the shell, the end part of the input shaft of the second speed reducer 34 is coaxially and fixedly sleeved with a second gear 341, and the first gear 331 is meshed with the second gear 341 and is in transmission connection; similarly, in order to ensure the normal driving of the corresponding traction roller 2 on the upper traction frame 12 by the second speed reducer 34 after the upper traction frame 12 is vertically lifted, the output shaft of the second speed reducer 34 is connected with the corresponding traction sprocket 31 through a universal coupling 35.

Referring to fig. 5 and 6, due to errors in the manufacturing process of the plate materials, the thicknesses of the same plate material are not completely consistent; if the thickness of a certain part of the plate is larger than the thickness size of the measuring end of the plate, the plate is clamped between the upper traction frame 12 and the lower traction frame 11 in the traction process, and the normal conveying operation of the plate is influenced; for this reason, the frame body 1 is provided with the adjusting components 6 at both ends in the length direction.

Adjusting part 6 includes adjusting cylinder 61, and on adjusting cylinder 61 was fixed in the support body 1 of last traction frame 12 upside, adjusting cylinder 61's piston rod was vertical setting, and the tip of adjusting cylinder 61 piston rod sets up down and is connected with last traction frame 12 through connecting piece 62. The adjusting cylinder 61 is used for adjusting the height of the upper traction frame 12 in the sheet material transmission process; meanwhile, the adjusting cylinder 61 is electrically connected to the controller electrically connected to the first displacement sensor 42.

The link 62 includes a cylinder link 621, a swing arm 622, a pull rod 623, and a triangular crank arm 624.

The cylinder connecting rods 621 are coaxially fixed at the end parts of the piston rods of the adjusting cylinders 61, two swing arms 622 are rotatably arranged at one ends of the cylinder connecting rods 621 axially departing from the adjusting cylinders 61, one ends of the two swing arms 622 are hinged to one point with the cylinder connecting rods 621, and the end parts of the two swing arms 622 departing from the hinged points of the two swing arms 622 and the cylinder connecting rods 621 are respectively positioned at two sides of the cylinder connecting rods 621 along the plate feeding direction; one triangular crank arm 624 is arranged on one side of any swing arm 622 away from the air cylinder connecting rod 621, an angle opposite to the longest edge of the triangular crank arm 624 is rotatably connected with the lifting nut seat 511, and the longest edge of any triangular crank arm 624 is positioned on the upper side of the hinged point of the triangular crank arm 624 and the lifting nut seat 511; any triangular crank arm 624 is connected with the corresponding swing arm 622 through a traction rod 623; one end of any swing arm 622, which is deviated from the hinged point of the swing arm 623 and the air cylinder connecting rod 621, is rotatably connected with two draw rods 623, one end of each draw rod 623 in the length direction is hinged with the corresponding swing arm 622 at one point, one end of one draw rod 623, which is deviated from the hinged point of the other draw rod 623 and the corresponding swing arm 622, on any swing arm 622 is rotatably connected with the upper traction frame 12, and one end of the other draw rod 623, which is hinged with the same swing arm 622, which is deviated from the hinged point of the other draw rod 623 and the corresponding swing arm 622 is hinged with one end, which is close to the air cylinder connecting rod 621, of the triangular crank arm 624 on the longest side; moreover, the hinge point of any swing arm 622 and the corresponding traction rod 623 is positioned between two end points of the two corresponding traction rods 623 which are away from each other; meanwhile, one end of the longest side of any triangular crank arm 624, which is far away from the cylinder connecting rod 621, is hinged with a supporting block 6241, the rotating axis directions of the supporting block 6241 and the triangular crank arm 624 are parallel to the length direction of the frame body 1, the upper side surface of the supporting block 6241 is in abutting arrangement with the lower side surface of the upper traction frame 12, and any supporting block 6241 is in sliding fit with the upper traction frame 12 along the width direction of the upper traction frame 12.

In the sheet feeding process, when the first displacement sensor 42 detects that the thickness of the sheet is increased, the piston rod of the adjusting cylinder 61 is contracted, and meanwhile, the cylinder connecting rod 621 is driven to move vertically upwards; the cylinder connecting rod 621 rises and simultaneously drives the corresponding swing arm 622 to move towards the side close to the cylinder connecting rod 621; when the corresponding swing arm 622 moves, the end, hinged with the corresponding swing arm 622, of the corresponding draw bar 623 is driven to move to the side close to the air cylinder connecting rod 621, so that the draw bar 623 hinged with the upper traction frame 12 drives the upper traction frame 12 to lift upwards, meanwhile, the draw bar 623 hinged with the triangular crank arm 624 drives the end, in the length direction of the longest side of the corresponding triangular crank arm 624, close to the air cylinder connecting rod 621 to rotate downwards around the hinged point of the longest side of the triangular crank arm 624 with the lifting nut seat 511, and further, the end, in the length direction of the longest side of the triangular crank arm 624, of the longest side far away from the air cylinder connecting rod 621, rotates upwards around the hinged point of the longest side of the triangular crank arm 624 with the lifting nut seat 511; when the longest side of the triangular crank arm 624 rotates upwards away from one end of the cylinder connecting rod 621, a horizontal component force and an upward vertical component force towards one side of the cylinder connecting rod 621 are generated; under the action of horizontal component force, the supporting block 6241 slides towards the side close to the cylinder connecting rod 621 along the width direction of the upper traction frame 12; under the action of the vertical component force, the support block 6241 moves upward and vertically lifts the upper traction frame 12, thereby completing the height adjustment of the upper traction frame 12.

The implementation principle of a sheet material traction mechanism of the embodiment of the application is as follows: when the plate traction mechanism is used for traction of a plate, a worker firstly places the end part of the plate in the length direction between the roller 411 and the front detection lower carrier roller 412; a measuring cylinder 413 is started immediately, the measuring cylinder 413 drives a front detection lower carrier roller 412 to vertically lift, the distance between the front detection lower carrier roller 412 and a roller 411 is adjusted, the roller 411 and the front detection lower carrier roller 412 clamp a sheet material and ensure that the sheet material is normally fed between the roller 411 and the front detection lower carrier roller 412; meanwhile, the first displacement sensor 42 detects the expansion amount of the piston rod of the measuring cylinder 413, and then the thickness of the plate is obtained; then, the first displacement sensor 42 sends a signal to the corresponding controller, the corresponding controller controls the driving motor 521 to start, and the driving motor 521 drives the lifting screw 51 to rotate; the lifting screw 51 rotates and simultaneously drives the lifting nut seat 511 to vertically lift, the lifting nut seat 511 drives the upper traction frame 12 to vertically lift, the second displacement sensor 53 monitors the displacement of the lifting nut seat 511, and when the displacement monitored by the second displacement sensor 53 is equal to the displacement monitored by the first displacement sensor 42, the controller controls the driving motor 521 to stop, so that the distance between the upper traction frame 12 and the lower traction frame 11 is equal to the thickness of the plate.

Then, the staff pushes the sheet material to make the end of the sheet material extend between the traction roller 2 of the upper traction frame 12 and the corresponding traction roller 2 on the lower traction frame 11, and then the servo motor 32 is started, and the servo motor 32 drives the upper traction frame 12 and the corresponding traction roller 2 on the lower traction frame 11 to rotate; under the action of friction force between the plate and the corresponding traction roller 2, the plate is fed between the upper traction frame 12 and the lower traction frame 11 along the width direction of the frame body 1, so that the traction operation of the plate is completed.

When the first displacement sensor 42 detects that the thickness of a certain part of the plate is larger than the thickness of the peripheral side of the plate, the adjusting cylinder 61 is started, the piston rod of the adjusting cylinder 61 is contracted, and one end of the triangular crank arm 624 departing from the cylinder connecting rod 621 and one of the draw bars 623 simultaneously draw the upper traction frame 12 to be lifted, so that the support block 6241 lifts the upper traction frame 12 to a certain height, and the plate can smoothly pass through the space between the upper traction frame 12 and the lower traction frame 11. By adopting the mode, the traction requirements of the plates with different thicknesses can be met, and the applicability of the plate traction mechanism is improved; meanwhile, the device is beneficial to reducing the blocking and pause of the plate in the traction process, and effectively improving the stability of the plate in the transmission process.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a sheet material drive mechanism, includes support body (1), be provided with down traction frame (11) and go up traction frame (12) along self direction of height parallel interval on support body (1), it sets up along vertical direction lift to go up traction frame (12), all rotate on traction frame (11) and last traction frame (12) down and be provided with carry over pinch rolls (2), and arbitrary the direction of feed of the rotation axis of carry over pinch rolls (2) all with the self axis coaxial and equal perpendicular to sheet material, its characterized in that: the plate feeding device is characterized in that a power assembly (3) used for driving the traction roller (2) to rotate is arranged on the frame body (1), a driving assembly (5) used for driving the upper traction frame (12) to lift is arranged on the frame body (1), and an adjusting assembly (6) used for reducing the occurrence of blocking and stopping of a plate in the feeding process is arranged on the frame body (1).

2. A sheet pulling mechanism according to claim 1, wherein: the adjusting assembly (6) comprises an adjusting cylinder (61) used for adjusting the height of the upper traction frame (12) in the plate feeding process, the adjusting cylinder (61) is fixed on the frame body (1) on the upper side of the upper traction frame (12), and the end part of a piston rod of the adjusting cylinder (61) points to the upper traction frame (12) and is connected with the upper traction frame (12) through a connecting piece (62).

3. A sheet pulling mechanism according to claim 2, wherein: the connecting piece (62) comprises a cylinder connecting rod (621), and the cylinder connecting rod (621) is coaxially fixed at the end of the piston rod of the adjusting cylinder (61); the connecting piece (62) further comprises two swing arms (622) rotatably arranged at one end, away from the adjusting cylinder (61), of the cylinder connecting rod (621), one ends of the two swing arms (622) in the length direction are hinged to one point with the cylinder connecting rod (621), and the end parts, away from the hinged point of the two swing arms (622) and the cylinder connecting rod (621), of the two swing arms are respectively located on two sides of the cylinder connecting rod (621) in the plate feeding direction;

the connecting piece (62) further comprises two draw rods (623) rotatably arranged on any swing arm (622), two draw rods (623) are arranged at one end of any swing arm (622) departing from the cylinder connecting rod (621), one ends of the two draw rods (623) on the same swing arm (622) in the length direction are hinged to one point of the corresponding swing arm (622), and one end of any draw rod (623) on the same swing arm (622) departing from the hinged point of the draw rod and the corresponding swing arm (622) is rotatably connected with the upper traction frame (12);

one end, departing from the hinged point of the other traction rod (623) and the corresponding swing arm (622), of the other traction rod (623) on the same swing arm (622) is hinged with a triangular crank arm (624), the hinged point of any swing arm (622) and the corresponding traction rod (623) is located between two end points, departing from each other, of the two corresponding traction rods (623), and the rotating axis direction of any traction rod (623) is parallel to the axis direction of the traction roller (2);

one end, away from the cylinder connecting rod (621), of the longest side of any triangular crank arm (624) is supported on the lower side of the upper traction frame (12) and is connected with the upper traction frame (12) in a sliding manner, and one end, close to the cylinder connecting rod (621), of the longest side of any triangular crank arm (624) is hinged to the corresponding traction rod (623); any triangle-shaped crank arm (624) deviate from one side of self longest side and rotate with support body (1) and be connected, just any triangle-shaped crank arm (624)'s longest side all is located self and support body (1) pin joint's upside.

4. A sheet pulling mechanism according to claim 3, wherein: the driving assembly (5) comprises a lifting screw (51) and a driving piece (52), the lifting screw (51) is vertical, the lifting screw (51) is rotatably connected with the frame body (1), and the rotating axis direction of the lifting screw (51) is overlapped with the axis direction of the lifting screw; a lifting nut seat (511) is sleeved on the lifting screw rod (51) in a threaded manner, the lifting nut seat (511) is in threaded connection with the lifting screw rod (51) along the vertical direction, and one side, close to the upper traction frame (12), of the lifting nut seat (511) is rotatably connected with a triangular crank arm (624); the driving piece (52) comprises a driving motor (521), and the driving motor (521) is in transmission connection with the lifting screw (51).

5. A sheet pulling mechanism according to claim 1, wherein: the frame body (1) is also provided with a measuring component (4) for measuring the thickness of the plate.

6. A sheet pulling mechanism according to claim 5, wherein: the measuring assembly (4) comprises a clamping piece (41) and a measuring piece, the clamping piece (41) comprises a roller (411) rotatably arranged on the lower traction frame (11) and a front detection lower carrier roller (412) capable of lifting along the vertical direction on the upper traction frame (12), the roller (411) and the front detection lower carrier roller (412) are arranged in parallel to the traction roller (2), and the roller (411) and the front detection lower carrier roller (412) are arranged on one side of the frame body (1) in the upstream of the sheet feeding direction; the clamping piece (41) further comprises a measuring cylinder (413) used for driving the front detection lower carrier roller (412) to lift; the measuring part comprises a first displacement sensor (42) for detecting the telescopic amount of a piston rod of the measuring cylinder (413), and the first displacement sensor (42) is electrically connected with the measuring cylinder (413) and the driving motor (521) respectively.

7. A sheet pulling mechanism according to claim 6, wherein: the frame body (1) is provided with a second displacement sensor (53) for detecting the displacement of the lifting nut seat (511), and the second displacement sensor (53) is electrically connected with the driving motor (521) and the first displacement sensor (42) respectively.

8. A sheet pulling mechanism according to claim 1, wherein: the power assembly (3) comprises a traction chain wheel (31) in transmission connection with the traction roller (2); the power assembly (3) comprises a servo motor (32); a first speed reducer (33) is connected between the servo motor (32) and the traction roller (2) arranged on the lower traction frame (11); the power assembly (3) further comprises a second speed reducer (34), and an output shaft of the second speed reducer (34) is in transmission connection with any traction roller (2) arranged on the upper traction frame (12); the output shaft of the first speed reducer (33) is in transmission connection with the input shaft of the second speed reducer (34) and drives the input shaft of the second speed reducer (34) to rotate; universal couplings (35) are connected between the first speed reducer (33) and the corresponding traction chain wheel (31) and between the second speed reducer (34) and the corresponding traction chain wheel (31).

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