CN112220143B - Automatic drawing equipment for leather drawing - Google Patents

Automatic drawing equipment for leather drawing Download PDF

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Publication number
CN112220143B
CN112220143B CN202010905612.0A CN202010905612A CN112220143B CN 112220143 B CN112220143 B CN 112220143B CN 202010905612 A CN202010905612 A CN 202010905612A CN 112220143 B CN112220143 B CN 112220143B
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China
Prior art keywords
pen
leather
guide
workbench
pressing
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CN202010905612.0A
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CN112220143A (en
Inventor
朱明德
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Dongguan Xiangrui Leather Goods Co.,Ltd.
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Taicang Century Port Garment Co ltd
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Application filed by Taicang Century Port Garment Co ltd filed Critical Taicang Century Port Garment Co ltd
Priority to CN202010905612.0A priority Critical patent/CN112220143B/en
Priority to PCT/CN2020/113015 priority patent/WO2022047663A1/en
Priority to DE212020000176.6U priority patent/DE212020000176U1/en
Publication of CN112220143A publication Critical patent/CN112220143A/en
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Publication of CN112220143B publication Critical patent/CN112220143B/en
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    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41HAPPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
    • A41H41/00Machines or appliances for making garments from natural or artificial fur
    • A41H41/005Machines or appliances for making garments from artificial fur
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44DPAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
    • B44D3/00Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

The invention discloses automatic drawing equipment for leather drawing, which comprises a drawing table and an automatic pen changing mechanism. The automatic pen changing mechanism is matched with the ejector block through the drawing pen arranged in the rotating body, automatic changing of the drawing pen is achieved, the position of the drawing pen in a changed use state is kept unchanged, and origin repositioning is not needed. The elastic mechanism is matched with the mounting hole through threads, so that the rapid disassembly and assembly are realized. Go up the lid and pass through the set screw and be connected the casing fixed, realize going up lid quick assembly disassembly and quick installation drawing pen, fix a position through unthreaded hole and screw simultaneously, guarantee to go up the lid and be connected the casing relative position unchangeable.

Description

Automatic drawing equipment for leather drawing
Technical Field
The invention relates to the field of leather product manufacturing, in particular to automatic drawing equipment for leather drawing.
Background
After the artificial leather is produced into a roll shape, the artificial leather is sold to leather manufacturers for production and manufacturing; in the production process, the leather needs to be drawn out and flattened and then cut patterns are drawn on the leather, but wrinkles may occur in the manual flattening process, and the leather may be accidentally displaced in the drawing process of the patterns, and at this time, the leather needs to be readjusted to determine the origin again. In the manufacturing process of the leather product, patterns are firstly drawn on the surface of the leather product to facilitate later cutting; it can be known that after the drawing pen is used for a period of time, the ink in the drawing pen is used up, and the drawing pen cannot be used continuously, so that an automatic pen changing mechanism needs to be designed, and the pen can be automatically changed after the drawing length is set; if the drawing pen is replaced manually, the drawing pen cannot be manually determined to draw the length, and the drawing pen cannot be replaced in time, so that the drawing quality of the surface of the leather is partially improved.
Disclosure of Invention
Aiming at overcoming the defects in the prior art, the invention mainly aims to overcome the defects in the prior art and discloses automatic drawing equipment for leather drawing, which comprises a drawing table and an automatic pen replacing mechanism, wherein the drawing table comprises a workbench, a two-shaft synchronous belt sliding table, a lifting mechanism, a discharging mechanism, a pressing mechanism, a leveling mechanism and a driving mechanism, an opening allowing leather to pass through is formed in the workbench, the discharging mechanism is arranged at one end of the workbench and used for erecting rolled leather, the pressing mechanism is arranged on the lower surface of the workbench and used for pressing one end of the leather, the leveling mechanism is arranged on the workbench in a sliding mode and used for driving the leveling mechanism to move back and forth; the two-shaft synchronous belt sliding table is arranged on the workbench, the lifting mechanism is arranged on the two-shaft synchronous belt sliding table, the lifting mechanism is driven to move in a horizontal plane by the two-shaft synchronous belt sliding table, the automatic pen changing mechanism is arranged on the lifting mechanism, and the lifting mechanism is used for driving the automatic pen changing mechanism to vertically move;
the automatic pen replacing mechanism comprises a connecting shell, an actuator, an upper cover body, a rotating body and an elastic mechanism, wherein the connecting shell is connected with a mechanical arm, an installation cavity is arranged in the connecting shell, the rotating body is rotatably arranged in the installation cavity, the lower end of the rotating body protrudes out of the connecting shell, a plurality of installation holes for installing a drawing pen are formed in the rotating body at equal intervals around the rotating center of the rotating body, the elastic mechanism is arranged in the installation holes, the drawing pen is pushed to move upwards by the elastic mechanism to enable a pen point to be hidden in the installation holes, the upper end of the drawing pen protrudes out of the installation holes, the upper cover body is detachably connected with the connecting shell, an ejector block is arranged on the lower surface of the upper cover body in a protruding mode, the position of the ejector block corresponds to the installation holes, and guide parts connected with the upper cover body are arranged on two sides of the ejector block, the actuator is arranged on the upper cover body and is detachably connected with the rotating body, and the rotating body is driven to rotate by the actuator.
Furthermore, the leveling mechanism comprises a gantry, first guide rods, a moving plate, an electric cylinder, a pressing wheel, a guide wheel, a first pressing plate, a spring and a leveling shell, wherein the first guide rods are respectively arranged at two sides of the workbench, the gantry is arranged on the first guide rods, first guide grooves are vertically arranged on the inner walls at two sides of the gantry, two ends of the moving plate are slidably arranged in the first guide grooves, the electric cylinder is arranged on the gantry, and the moving plate is driven to move up and down by the electric cylinder; a plurality of second guide rods are arranged on the upper surface of the leveling shell at intervals, guide holes corresponding to the second guide rods are formed in the movable plate, the second guide rods are arranged in the guide holes in a sliding mode, and the spring is sleeved on the second guide rods and located between the movable plate and the leveling shell; the lower surface of the leveling shell is concavely provided with a negative pressure cavity, the side wall of the leveling shell is provided with an interface connected with a negative pressure generator, the pressing wheels are arranged at the lower ends of the left side wall and the right side wall of the leveling shell in a rolling mode, the guide wheels are arranged in the negative pressure cavity in a rolling mode and located between the two pressing wheels, and the first pressing plate is arranged on one side, close to the opening, of the movable plate.
Further, the driving mechanism comprises a servo motor, a first lead screw and a moving block, the first lead screw is rotatably arranged at the bottom of the workbench and is parallel to the first guide rod, the moving block is connected to the first lead screw and is connected with the gantry, and the servo motor is used for driving the moving block to move so as to drive the leveling mechanism to move.
Furthermore, the pressing mechanism comprises a pressing cylinder, a second pressing plate and rollers, the lower surface of the workbench is provided with a concave fence in a downward protruding mode around the opening, the inner sides of the two side walls of the fence are provided with second guide grooves, the two ends of the second pressing plate are arranged in the second guide grooves in a sliding mode, and the pressing cylinder is fixed on the lower surface of the workbench to drive the second pressing plate to horizontally reciprocate; the lower end of the second pressing plate and the upper right corner of the opening are provided with the roller.
Further, drop feed mechanism sets up including the symmetry lifting mechanism on two feet of workstation, lifting mechanism includes swing arm, support cylinder and back shaft, the one end of swing arm with the one end of support cylinder sets up respectively in the upper end and the lower extreme of a foot, and the other end of swing arm with the other end of support cylinder is articulated, set up in the swing arm and place the notch of back shaft, the back shaft is used for installing roll-like leather, and its both ends install in the notch.
Furthermore, the lifting mechanism comprises a base, a third guide rod, a stepping motor, a lifting block and a second screw rod, the third guide rod and the second screw rod are parallel and vertically arranged on the base, the lifting block is arranged on the third guide rod and the second screw rod, and the stepping motor is used for driving the lifting block to vertically move.
Furthermore, the lateral wall of connecting the casing equidistant sets up at least three unthreaded hole, and what correspond sets up the screw on the lateral wall of last lid, the set screw passes the unthreaded hole with screw thread fit.
Further, the elastic mechanism comprises an adjusting shell, an adjusting ring and an adjusting spring, wherein one end of the adjusting shell is provided with a through hole for allowing the front end of the drawing pen to pass through, the adjusting ring is provided with a through hole for installing the drawing pen, and the adjusting spring and the adjusting ring are arranged in the adjusting shell.
Further, the inner wall of the lower end of the mounting hole is provided with an internal thread, the outer wall of the adjusting shell is provided with an external thread, and the adjusting shell is in threaded fit with the mounting hole.
Furthermore, the rotation center of the rotation body is provided with a square concave hole, and the connecting shaft of the actuator is provided with a convex block matched with the concave hole.
The invention has the following beneficial effects:
the drawing table skillfully utilizes a negative pressure suction method, realizes the flattening of leather by matching with the pressing wheel and the roller, realizes automatic drawing by matching with the two-shaft synchronous belt sliding table and the lifting mechanism, and greatly improves the drawing efficiency. The discharging mechanism is composed of two lifting mechanisms which are symmetrically arranged, so that the rolled leather can be freely moved to the position between the lifting mechanisms, and the rolled leather is convenient to install. The automatic pen changing mechanism is matched with the ejector block through the drawing pen arranged in the rotating body, automatic changing of the drawing pen is achieved, the position of the drawing pen in a changed use state is kept unchanged, and origin repositioning is not needed. The elastic mechanism is matched with the mounting hole through threads, so that the rapid disassembly and assembly are realized. Go up the lid and pass through the set screw and be connected the casing fixed, realize going up lid quick assembly disassembly and quick installation drawing pen, fix a position through unthreaded hole and screw simultaneously, guarantee to go up the lid and be connected the casing relative position unchangeable.
Drawings
FIG. 1 is a schematic perspective view of an automatic drawing apparatus for leather drawing according to the present invention;
FIG. 2 is a schematic perspective view of another perspective of an automatic drawing apparatus for leather drawing according to the present invention;
FIG. 3 is a schematic view of the leveling mechanism and the driving mechanism;
FIG. 4 is a cross-sectional view of the flattened housing;
FIG. 5 is a schematic structural view of the lifting mechanism;
FIG. 6 is a schematic perspective view of the automatic pen-changing mechanism;
FIG. 7 is a schematic view of a connection structure between the upper cover and the rotating body;
FIG. 8 is a schematic structural view of the upper cover;
FIG. 9 is a schematic structural view of a spring mechanism;
FIG. 10 is an exploded view of FIG. 9;
FIG. 11 is a schematic structural view of the rotating body;
the reference numbers are as follows:
1. a workbench, 2, a two-axis synchronous belt sliding table, 3, a lifting mechanism, 4, a discharging mechanism, 5, a pressing mechanism, 6, a leveling mechanism, 7, a driving mechanism, 8, an automatic pen changing mechanism, 9, a drawing pen, 11, an opening, 12, a fence, 13, a second guide groove, 14, a roller, 31, a base, 32, a third guide rod, 33, a stepping motor, 34, a lifting block, 35, a second lead screw, 41, a swing arm, 42, a supporting cylinder, 43, a supporting shaft, 51, a pressing cylinder, 52, a second pressing plate, 61, a gantry, 62, a first guide rod, 63, a moving plate, 64, an electric cylinder, 65, a pressing wheel, 66, a guide wheel, 67, a first pressing plate, 68, a spring, 69, a leveling shell, 71, a servo motor, 72, a first lead screw, 73, a moving block, 611, a first guide groove, 691, a second guide rod, 692, an interface, 81, a connecting shell, 82, an actuator, 83, a drawing pen, a pen holder, a pen holder, a pen holder, a pen, a door, a pen, a door, a pen, a door, a pen, a door, a, Go up lid, 84, rotation body, 85, elastic mechanism, 812, set screw, 821, lug, 831, kicking block, 832, guide portion, 833, screw, 841, mounting hole, 842, shrinkage pool, 851, adjust the casing, 852, adjustable ring, 853, adjust the spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
An automatic drawing device for leather drawing is shown in figures 1-2 and comprises a drawing table and an automatic pen changing mechanism 2, wherein the drawing table 1 comprises a workbench 1, a two-shaft synchronous belt sliding table 2, a lifting mechanism 3, a discharging mechanism 4, a pressing mechanism 5, a leveling mechanism 6 and a driving mechanism 7, an opening 11 allowing leather to pass through is formed in the workbench 1, the discharging mechanism 4 is arranged at one end of the workbench 1 and used for erecting rolled leather, and the leather enters the opening 11 from the bottom of the workbench 1 and then is laid on the upper surface of the workbench 1. The pressing mechanism 5 is arranged on the lower surface of the workbench 1 and used for pressing leather, and the leather which is already paved on the upper surface of the workbench 1 is prevented from being influenced by the discharging mechanism 4 during drawing. The leveling mechanism 6 is arranged on the workbench 1 in a sliding manner, and the driving mechanism 7 is arranged on the workbench 1 to drive the leveling mechanism 6 to horizontally reciprocate; wherein, the leveling mechanism attracts the leather through negative pressure, and the driving mechanism 7 is utilized to move the leveling mechanism 6 to one side, thereby realizing the leveling of the leather. The two-shaft synchronous belt sliding table 2 is arranged on the workbench 1, the lifting mechanism 3 is arranged on the two-shaft synchronous belt sliding table 2, the automatic pen changing mechanism 8 is arranged on the lifting mechanism 3, and the automatic pen changing mechanism 8 is driven to move on the horizontal plane through the two-shaft synchronous belt sliding table 2; at the position where drawing is not needed, the automatic painting brush mechanism is lifted by the lifting mechanism 3 to be away from the leather; i.e. so that the drawing pen 9 is distanced from the leather.
As shown in fig. 6-11, the automatic pen-changing mechanism 8 includes a connecting housing 81, an actuator 82, an upper cover 83, a rotating body 84 and an elastic mechanism 85, wherein the connecting housing 81 is connected with a mechanical arm, and the mechanical arm is controlled to control the pen-changing mechanism to draw on leather. Set up the installation cavity in connecting the casing 81, it sets up in the installation cavity to rotate body 84, and the lower extreme protrusion of rotating the body in connecting casing 81, it sets up a plurality of mounting hole 841 that is used for installing the drawing pen around its rotation center equidistant to rotate body 84, set up elastic mechanism 85 in the mounting hole 841, utilize elastic mechanism 85 to promote the drawing pen to move up and make the nib hide in mounting hole 841 and draw the protrusion in mounting hole 841 of upper end of the drawing pen, upper cover 83 can dismantle with connecting casing 81 and be connected, the lower surface of upper cover 83 is protruding downwards and is set up kicking block 831, and the position corresponds with mounting hole 841, kicking block 831 both sides set up in the guide portion 832 that upper cover 83 connects, actuator 82 sets up on upper cover 83, and can dismantle with rotating body 84 and be connected, utilize actuator 82 drive to rotate body 84 and rotate. Assuming that the number of the mounting holes 841 is 6, that is, the angle of the interval between two adjacent mounting holes 841 is 60 °, the plotter pen 9 is pushed down by the top block 831 so that the pen point of the plotter pen 9 protrudes from the lower end of the elastic mechanism 85; when the pen needs to be changed, the actuator 82 drives the rotating body 84 to rotate by 60 °, the current drawing pen 9 moves upward along the guide portion 832 under the restoring force of the elastic mechanism 85, the adjacent drawing pen 9 moves downward under the guide of the guide portion 832, and the drawing pen is always attached to the top block 831 under the action of the elastic mechanism 85. The automatic pen changing is realized through the steps.
Specifically, as shown in fig. 1 to 4, the leveling mechanism 6 includes a gantry 61, a first guide rod 62, a moving plate 63, an electric cylinder 64, a pressing wheel 65, a guide wheel 66, a first pressing plate 67, a spring 68 and a leveling housing 69, the first guide rod 62 is respectively disposed at two sides of the workbench 1, the gantry 61 is disposed on the first guide rod 62, first guide grooves 611 are vertically disposed on inner walls of two sides of the gantry 61, and two ends of the moving plate 63 are slidably disposed in the first guide grooves 611; an electric cylinder 64 is provided on an upper surface of the gantry 61, and is connected to the moving plate 63, and the moving plate 63 is driven to move vertically by the electric cylinder 64. A plurality of second guide rods 691 are arranged on the upper surface of the leveling shell 69 at intervals; generally, the second guide rod 691 is provided in at least two, and of course, the number of the second guide rods 691 is increased according to the length of the leveling housing 69. A guide hole corresponding to the second guide rod 691 is formed in the moving plate 63, the second guide rod 691 is slidably arranged in the guide hole, and the spring 68 is sleeved on the second guide rod 691 and is positioned between the moving plate 63 and the leveling housing 69; a stopper is provided at the upper end of the second guide rod 691 to prevent the moving plate 63 from being separated from the leveling housing 69. The lower surface of the leveling housing 69 is concavely provided with a negative pressure cavity, the side wall of the leveling housing is provided with an interface 692 connected with a negative pressure generator, the pressing wheels 65 are arranged at the lower ends of the left side wall and the right side wall of the leveling housing 69 in a rolling manner, the guide wheels 66 are arranged in the negative pressure cavity in a rolling manner and are positioned between the two pressing wheels 65, and the first pressing plate 67 is arranged at one side of the movable plate 63 close to the opening 11. Preferably, the bottom of the first pressing plate 67 is provided with a pressing strip made of silica gel, or the bottom of the first pressing plate 67 is directly covered with a glue layer, so that the leather is protected from being crushed by using the toughness of the glue layer, and meanwhile, the friction force between the leather and the leather is increased.
The following describes how the leveling mechanism 6 levels the leather, and the desired leather is first pulled out from the opening 11 and then one end of the leather is fixed by the pressing mechanism 5. The pulled leather is laid on the workbench 1, the driving mechanism 7 drives the leveling mechanism 6 to move to the opening, the other end of the leather is lifted upwards obliquely towards one end by a worker, the leveling shell 69 is driven to move downwards through the electric cylinder 64, the leather is adsorbed on the pressing wheel 65 and the guide wheel 66 by using the pressure of the negative pressure cavity, then the leather is slightly lifted through the electric cylinder 64, the leveling mechanism 6 is pulled towards one end through the driving mechanism 7, and at the moment, the leather is tensioned and leveled by traction force. Then the electric cylinder 64 drives the leveling shell 69 to move downwards to press the leather on the workbench and then continuously move towards one side until one end is reached, the moving plate 63 is continuously driven to move downwards by the electric cylinder 64, and one end of the leather is pressed by the first pressing plate 67. The leather is flattened and compacted through the operation. Avoiding wrinkles during drawing.
In one embodiment, as shown in fig. 1 to 4, the driving mechanism 7 includes a servo motor 71, a first lead screw 72 and a moving block 73, the first lead screw 72 is rotatably disposed at the bottom of the worktable 1 and is parallel to the first guide rod 62, the moving block 73 is connected to the first lead screw 72 and is connected to the gantry 61, and the servo motor 71 is used to drive the moving block 73 to move so as to drive the leveling mechanism 6 to move.
In one embodiment, as shown in fig. 1-2, the pressing mechanism 5 includes a pressing cylinder 51 and a second pressing plate 52, the lower surface of the working platform 1 is provided with a concave-shaped rail 12 protruding downwards around the opening, the inner sides of the two side walls of the rail 12 are provided with second guide grooves 13, the two ends of the second pressing plate 52 are slidably arranged in the second guide grooves 13, the pressing cylinder 51 is fixed on the lower surface of the working platform 1 to drive the second pressing plate 52 to horizontally reciprocate, and the leather is pressed on the rail 12 through the second pressing plate 52. Preferably, the pressing plate 52 is covered with a glue layer, and the leather is protected from being crushed by using the toughness of the glue layer, and meanwhile, the friction force between the pressing plate and the leather is increased.
In one embodiment, as shown in fig. 1-2, the roller 14 is further included, and the roller 14 is disposed at the lower end of the second pressing plate 52 and the upper right corner of the opening. The rollers 14 prevent the leather from being rubbed to cause surface scratching.
In one embodiment, as shown in fig. 1-2, the discharging mechanism 4 comprises a lifting mechanism symmetrically disposed on two legs of the working platform 1, the lifting mechanism comprises a swing arm 41, a support cylinder 42 and a support shaft 43, one end of the swing arm 41 and one end of the support cylinder 42 are respectively disposed at the upper end and the lower end of the legs, the other end of the swing arm 41 is hinged to the other end of the support cylinder 42, a notch for placing the support shaft 43 is disposed on the swing arm 41, the support shaft 43 is used for mounting the rolled leather, and two ends of the support shaft are mounted in the notch. When the supporting cylinder 42 is retracted, the swing arm 41 is rotated downward so that the notch is lowered to push the rolled leather between the two lifting mechanisms, the supporting shaft 43 is inserted into the center of the rolled leather, and both ends thereof are placed in the notch, the supporting cylinder 42 is driven to rotate the swing arm 41 upward, thereby lifting the rolled leather.
In one embodiment, as shown in fig. 5, the lifting mechanism 3 includes a base 31, a third guide rod 32, a stepping motor 33, a lifting block 34 and a second lead screw 35, the third guide rod 32 and the second lead screw 35 are disposed on the base 31 in parallel and vertically, the lifting block 34 is disposed on the third guide rod 32 and the second lead screw 35, and the stepping motor 33 is used to drive the lifting block 34 to move vertically.
To two hold-in range slip tables, it includes three hold-in range slip tables altogether, and two hold-in range slip tables symmetry set up, and both connect through the connecting rod, through one of them hold-in range slip table motion of servo motor drive to drive another hold-in range slip table synchronous motion through the connecting rod, on two hold-in range slip tables in the bottom were erect to remaining one hold-in range slip table, through its motion of independent servo motor drive, and then realized the removal on the horizontal direction. The structure of the two-shaft synchronous belt sliding table is the prior art, and redundant description is omitted here.
In one embodiment, as shown in fig. 6-11, at least three light holes are disposed on the sidewall of the connecting housing 81 at equal intervals, correspondingly, screw holes 833 are disposed on the sidewall of the upper cover 83, and the fixing screws 812 pass through the light holes and are screwed with the screw holes 833. Preferably, unthreaded hole and screw 833 all set up four, and correspondingly, set screw 812 also sets up four, through four set screws, realize going up lid 83 and being connected dismantling of casing 81, only need open last lid 83, can carry out the drawing pen 9 change in the mounting hole 841. And simultaneously, the relative position of the upper cover body 83 and the connecting shell 81 is ensured to be unchanged after the upper cover body is installed.
In one embodiment, as shown in fig. 6 to 11, the elastic mechanism 85 includes an adjustment housing 851, an adjustment ring 852, and an adjustment spring 853, the adjustment spring 853 and the adjustment ring 852 being provided in the adjustment housing 851 such that the adjustment ring 852 can move axially in the adjustment housing 851, one end of the adjustment housing 851 being provided with a through hole for allowing the front end of the plotter pen 9 to pass through, the adjustment ring 852 being provided with a through hole for mounting the plotter pen 9; the existing drawing pen 9 generally has a step structure, and the drawing pen 9 is clamped on the adjusting ring 852; the plotter pen 9 is pressed, the adjustment spring 853 is compressed, and the front end of the plotter pen 9 protrudes from the through hole of the adjustment housing 851.
In one embodiment, as shown in fig. 6-11, the inner wall of the lower end of the mounting hole 841 is provided with internal threads, the outer wall of the adjustment housing 851 is provided with external threads, and the adjustment housing 851 is threadedly engaged with the mounting hole 841. Through the above structure, the elastic mechanism 85 is quickly disassembled and assembled.
In one embodiment, as shown in fig. 6-11, a square recess 842 is provided at the center of rotation of the rotating body 84, and a projection 821 matched with the recess 842 is provided at the connecting shaft of the actuator 82. The actuator 82 and the rotating body 84 can be quickly disassembled and assembled through the concave hole 842 and the convex block 821, and then the drawing pen 9 can be conveniently replaced.
In one embodiment, as shown in FIGS. 6-11, the actuator 82 is a servo motor.
In use, as shown in fig. 6-11, taking 6 mounting holes 841 as an example, the drawing pen 9 is inserted into the mounting holes 841 and clamped on the adjusting ring 852, and the mounting holes 841 are used as guide holes for the drawing pen 9. Then, the upper cover 83 is covered, the actuator 82 is connected with the rotating body 84, and the upper cover 83 is fixed with the connecting shell 81 through a fixing screw, so that the installation of the drawing pen 9 is completed; when the drawing pen 9 reaches the replacement standard, the actuator 82 drives the rotating body 84 to rotate by 60 degrees, so that the drawing pen 9 is replaced, and the position of the drawing pen 9 is ensured to be unchanged.
The above are merely preferred embodiments of the present invention, and are not intended to limit the scope of the invention; it is intended that the following claims be interpreted as including all such alterations, modifications, and equivalents as fall within the true spirit and scope of the invention.

Claims (4)

1. The automatic drawing equipment for leather drawing is characterized by comprising a drawing table and an automatic pen replacing mechanism, wherein the drawing table comprises a workbench, a two-shaft synchronous belt sliding table, a lifting mechanism, a discharging mechanism, a pressing mechanism, a leveling mechanism and a driving mechanism, an opening allowing leather to pass through is formed in the workbench, the discharging mechanism is arranged at one end of the workbench and used for erecting rolled leather, the pressing mechanism is arranged on the lower surface of the workbench and used for pressing one end of the leather, the leveling mechanism is arranged on the workbench in a sliding mode and used for driving the leveling mechanism to move back and forth through the driving mechanism; the two-shaft synchronous belt sliding table is arranged on the workbench, the lifting mechanism is arranged on the two-shaft synchronous belt sliding table, the lifting mechanism is driven to move in a horizontal plane by the two-shaft synchronous belt sliding table, the automatic pen changing mechanism is arranged on the lifting mechanism, and the lifting mechanism is used for driving the automatic pen changing mechanism to vertically move;
the automatic pen replacing mechanism comprises a connecting shell, an actuator, an upper cover body, a rotating body and an elastic mechanism, wherein the connecting shell is connected with a mechanical arm, an installation cavity is arranged in the connecting shell, the rotating body is rotatably arranged in the installation cavity, the lower end of the rotating body protrudes out of the connecting shell, a plurality of installation holes for installing a drawing pen are formed in the rotating body at equal intervals around the rotating center of the rotating body, the elastic mechanism is arranged in the installation holes, the drawing pen is pushed to move upwards by the elastic mechanism to enable a pen point to be hidden in the installation holes, the upper end of the drawing pen protrudes out of the installation holes, the upper cover body is detachably connected with the connecting shell, an ejector block is arranged on the lower surface of the upper cover body in a protruding mode, the position of the ejector block corresponds to the installation holes, and guide parts connected with the upper cover body are arranged on two sides of the ejector block, the actuator is arranged on the upper cover body, is detachably connected with the rotating body and drives the rotating body to rotate by using the actuator;
the leveling mechanism comprises a portal frame, a first guide rod, a moving plate, an electric cylinder, a pressing wheel, a guide wheel, a first pressing plate, a spring and a leveling shell, the first guide rod is respectively arranged at two sides of the workbench, the portal frame is arranged on the first guide rod, first guide grooves are vertically arranged on the inner walls of two sides of the portal frame, two ends of the moving plate are slidably arranged in the first guide grooves, the electric cylinder is arranged on the portal frame, and the moving plate is driven to move up and down by the electric cylinder; a plurality of second guide rods are arranged on the upper surface of the leveling shell at intervals, guide holes corresponding to the second guide rods are formed in the movable plate, the second guide rods are arranged in the guide holes in a sliding mode, and the spring is sleeved on the second guide rods and located between the movable plate and the leveling shell; the lower surface of the leveling shell is concavely provided with a negative pressure cavity, the side wall of the leveling shell is provided with an interface connected with a negative pressure generator, the pressing wheels are arranged at the lower ends of the left side wall and the right side wall of the leveling shell in a rolling manner, the guide wheels are arranged in the negative pressure cavity in a rolling manner and are positioned between the two pressing wheels, and the first pressing plate is arranged on one side of the movable plate close to the opening;
the driving mechanism comprises a servo motor, a first lead screw and a moving block, the first lead screw is rotatably arranged at the bottom of the workbench and is parallel to the first guide rod, the moving block is connected to the first lead screw and is connected with the gantry, and the servo motor is used for driving the moving block to move so as to drive the leveling mechanism to move;
the pressing mechanism comprises a pressing cylinder, a second pressing plate and rollers, the lower surface of the workbench is provided with a concave fence in a downward protruding mode around the opening, the inner sides of the two side walls of the fence are provided with second guide grooves, the two ends of the second pressing plate are arranged in the second guide grooves in a sliding mode, and the pressing cylinder is fixed to the lower surface of the workbench so as to drive the second pressing plate to horizontally reciprocate; the rollers are arranged at the lower end of the second pressing plate and the upper right corner of the opening;
the feeding mechanism comprises lifting mechanisms symmetrically arranged on two table legs of the workbench, each lifting mechanism comprises a swing arm, a supporting cylinder and a supporting shaft, one end of each swing arm and one end of each supporting cylinder are respectively arranged at the upper end and the lower end of each table leg, the other end of each swing arm is hinged with the other end of each supporting cylinder, a notch for placing the supporting shaft is formed in each swing arm, the supporting shaft is used for mounting rolled leather, and the two ends of each supporting shaft are mounted in the notches;
the lifting mechanism comprises a base, a third guide rod, a stepping motor, a lifting block and a second screw rod, the third guide rod and the second screw rod are parallel and vertically arranged on the base, the lifting block is arranged on the third guide rod and the second screw rod, and the stepping motor is used for driving the lifting block to vertically move;
the elastic mechanism comprises an adjusting shell, an adjusting ring and an adjusting spring, wherein a through hole allowing the front end of the drawing pen to pass through is formed in one end of the adjusting shell, the adjusting ring is provided with a through hole for installing the drawing pen, and the adjusting spring and the adjusting ring are arranged in the adjusting shell.
2. The automatic drawing device for leather drawing according to claim 1, wherein at least three light holes are provided on the side wall of the connection housing at equal intervals, correspondingly, screw holes are provided on the side wall of the upper cover body, and fixing screws are threaded through the light holes and the screw holes.
3. The automatic drawing device for leather drawing according to claim 1, wherein the inner wall of the lower end of the mounting hole is provided with an internal thread, the outer wall of the adjusting housing is provided with an external thread, and the adjusting housing is in threaded fit with the mounting hole.
4. The automatic drawing equipment for leather drawing according to claim 1 wherein the rotation center of the rotation body is provided with a square concave hole, and the connection shaft of the actuator is provided with a projection engaged with the concave hole.
CN202010905612.0A 2020-09-01 2020-09-01 Automatic drawing equipment for leather drawing Active CN112220143B (en)

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CN202010905612.0A CN112220143B (en) 2020-09-01 2020-09-01 Automatic drawing equipment for leather drawing
PCT/CN2020/113015 WO2022047663A1 (en) 2020-09-01 2020-09-02 Automatic drawing apparatus for leather drawing
DE212020000176.6U DE212020000176U1 (en) 2020-09-01 2020-09-02 Automatic drawing system for leather drawing

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CN114435018B (en) * 2022-02-10 2024-02-20 湖南工业大学 Oil painting making and displaying equipment

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