CN113651104A

CN113651104A - Automatic plate feeding machine and application thereof

Info

Publication number: CN113651104A
Application number: CN202111123659.2A
Authority: CN
Inventors: 穆健; 楚晓华; 魏衍侠; 冯德瀛; 李淑红
Original assignee: Liaocheng University
Current assignee: Liaocheng University
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2021-11-16

Abstract

The invention relates to an automatic plate feeding machine and application thereof, comprising a bracket, a translation device, a lifting device and a material sucking device; the translation device comprises an electric push rod, a sliding block and a first fixing plate, the sliding block is connected to the bottom of the first fixing plate and is installed on a guide rail of the bracket, and the end of a piston rod of the electric push rod is fixedly connected with the bottom of the first fixing plate; the lifting device comprises a motor, a screw rod, a lifting rod, a sliding plate and a second fixing plate, wherein the motor is arranged on the upper surface of the first fixing plate, an output shaft of the motor is in transmission connection with the screw rod, the screw rod is in threaded connection with the center of the sliding plate, and the upper end and the lower end of the lifting rod are respectively connected with the sliding plate and the second fixing plate; the material suction device comprises suckers and a buffer plate, the suckers are arranged at the bottom of the buffer plate to form a sucker matrix, and the buffer plate is connected with the second fixing plate. The invention utilizes the PLC to realize automatic and intelligent operation, and replaces the traditional manual feeding and semi-automatic feeding and upgrading feeding procedures.

Description

Automatic plate feeding machine and application thereof

Technical Field

The invention relates to an automatic plate feeding machine and application thereof, in particular to an automatic plate feeding device applied to a punching machine tool, and belongs to the technical field of punching automation.

Background

At present, when punching machine tool production, panel processing needs earlier carry panel through the staff, and send to the processing position again and process, and work efficiency is low to very easily cause the staff injured.

Chinese patent document CN213763790U discloses a double-station stamping automatic feeding machine, which is used for solving the problems that the existing feeding machine is low in efficiency and does not have a leveling function. A frame of the feeding machine is sequentially provided with a feeding operation platform, a leveling roller assembly and a transfer operation platform from the front end to the rear end, two sides of the feeding operation platform are respectively provided with a stock bin, and a double-freedom-degree manipulator I in the feeding operation platform grabs a raw material plate from any stock bin and carries the raw material plate to a belt of a belt conveying mechanism I by using a spare one; a double-freedom-degree manipulator II in the transfer operation platform grabs the raw material plate from a belt conveying mechanism II and carries the raw material plate to a stamping die; and a leveling roller assembly is arranged between the feeding operation platform and the transferring operation platform. A automatic feeding for panel beating press line panel beating raw materials is equipped with two feed bins, and a during operation, another can the manual work fill material heap. And further carry out secondary leveling to the raw materials board through add leveling roller subassembly in this material loading machine, avoid the raw materials board to appear the defect.

This scheme provides two station material loading in turn, has improved work efficiency, still needs manual operation, and during a during operation, another can the manual work fill material heap, does not realize full automated operation. Based on the technical scheme, the invention provides an automatic plate feeding device, which is used for reducing the labor intensity of workers, improving the labor conditions of the workers, reducing the occurrence rate of accidents in production and further assisting in realizing full-automatic production and unmanned operation of punch machining.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an automatic plate feeding machine which can realize automatic shifting, automatic lifting, automatic grabbing and releasing of plates and finally realize automatic feeding of the plates.

The invention further provides a working method of the automatic plate feeding machine.

The technical scheme of the invention is as follows:

an automatic plate feeding machine comprises a support, a translation device, a lifting device and a material sucking device, wherein the translation device is arranged on the support, the lifting device is arranged on the translation device, and the bottom of the lifting device is connected with the material sucking device;

the translation device comprises an electric push rod, a sliding block and a first fixing plate, the sliding block is connected to the bottom of the first fixing plate and is installed on a guide rail of the bracket, and the end of a piston rod of the electric push rod is connected with the bottom of the first fixing plate;

the lifting device comprises a motor, a screw rod, a lifting rod, a sliding plate and a second fixing plate, wherein the motor is arranged on the upper surface of the first fixing plate, an output shaft of the motor is in transmission connection with the screw rod, the screw rod is in threaded connection with the center of the sliding plate, and the upper end and the lower end of the lifting rod are respectively connected with the sliding plate and the second fixing plate;

the material suction device comprises suckers and a buffer plate, the suckers are arranged at the bottom of the buffer plate to form a sucker matrix, and the buffer plate is connected with the second fixing plate.

Preferably, the support includes two horizontal poles, two connecting rods and four montants, and four montants are installed in the bottom of two horizontal poles, and two horizontal poles parallel arrangement are through two connecting rod fixed connection.

Preferably, the guide rails are arranged on the upper surfaces of the two cross rods, and the sliding blocks are connected with the guide rails in a matched mode.

Preferably, the end of the guide rail is provided with a rear sensor.

Preferably, the center of the sliding plate is provided with a threaded sleeve, and the screw rod penetrates through the threaded sleeve and is in threaded connection with the threaded sleeve.

Preferably, the number of the lifting rods is four, the four lifting rods are symmetrically arranged at four corner positions of the sliding plate, the top ends of the four lifting rods are fixedly connected with the sliding plate, and the bottom ends of the four lifting rods penetrate through the first fixing plate and then are connected with the second fixing plate.

Preferably, the two sides of the first fixing plate are symmetrically provided with supporting plates, the top ends of the supporting plates are connected through a top plate, the center of the top plate is provided with a bearing, and the top end of the lead screw is fixedly connected with the inner ring of the bearing.

Preferably, a guide plate is further connected between the support plates on the two sides, and the four lifting rods penetrate through the guide plate. The advantage of this design is, the deflector can increase the lift pole stability of in-process that rises and falls from top to bottom, avoids the lift pole to take place the skew.

Preferably, the two side supporting plates are symmetrically provided with a lower limiting sensor and an upper limiting sensor, and the sliding plate is provided with a limiter. The advantage of this design is, the lifter in-process that rises and falls from top to bottom, through stopper and the touching of lower spacing sensor or last spacing sensor, can guarantee that the rising and falling of lifter is in reasonable stroke range.

Preferably, the buffer plate is connected with the second fixing plate through a spring.

Preferably, the suction cup is connected to an external vacuum generator by a hose.

Preferably, the feeding machine further comprises a control system mainly composed of a PLC, and the motor, the electric push rod, the lower limit sensor, the upper limit sensor, the rear sensor and the vacuum generator are respectively connected with the PLC. The design has the advantages that the control system mainly comprises a Programmable Logic Controller (PLC) as a core, and all actions are finished under the control of the PLC.

A working method of an automatic plate feeding machine is characterized in that a plate is placed in the middle of a support in advance, then the feeding machine is started, and the working process comprises the following steps:

1) under the control of the PLC, the motor is started, the screw rod rotates, the lifting rod falls down to drive the second fixing plate and the buffer plate to fall down until the sucker contacts the plate;

2) the vacuum generator works to enable the sucking disc to generate negative pressure and suck the plate;

3) the motor rotates reversely, the lifting rod is lifted to drive the second fixing plate and the buffer plate to lift, and the plate is lifted;

4) the electric push rod works, the electric push rod pushes the first fixing plate to enable the sliding block to move to the tail end of the guide rail, and the sliding block stops moving after touching the rear sensor;

5) the motor is started, the lifting rod falls down to drive the second fixing plate and the buffer plate to fall down;

6) the vacuum generator stops working, the sucking disc releases the plate, and the plate falls to the position to be processed;

7) the motor rotates reversely to enable the screw rod to rotate, the lifting rod is lifted, and the second fixing plate and the buffer plate are driven to lift;

8) the electric push rod retracts to return to the initial position;

9) and repeating the steps 1) -8) to finish the automatic feeding of the plurality of plates.

The invention has the technical characteristics and beneficial effects that:

1. the automatic plate feeding machine is scientific in design, reasonable in structure, simple to operate and free of manpower, manpower and material resources are greatly saved, operation safety is improved, and meanwhile working efficiency is greatly improved.

2. The automatic plate feeding machine adopts the design of the sucker matrix, and utilizes the negative pressure principle to grab and release the plate, so that the hard grabbing of the traditional rigid manipulator is avoided, and the damage to the plate is avoided.

3. The automatic plate feeding machine disclosed by the invention realizes automatic lifting and back-and-forth movement by utilizing the structural design of the screw rod and the electric push rod, and is low in manufacturing cost and efficient in operation.

4. According to the automatic plate feeding machine, the PLC is utilized, the PLC internal program is adopted to run in the moving process of the whole device, automatic and intelligent operation is realized, the traditional manual feeding and semi-automatic feeding are replaced, and the feeding process is upgraded.

Drawings

FIG. 1 is a schematic structural diagram of a feeder of the present invention;

FIG. 2 is a bottom view of the feeder of the present invention;

FIG. 3 is a perspective view of the feeder of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a rear view of the feeder of the present invention;

FIG. 6 is an enlarged view of portion B of FIG. 5;

in the figure: 1-a screw rod, 2-a support plate, 3-a lifting rod, 4-a first fixing plate, 5-an electric push rod, 6-a plate, 7-a second fixing plate, 8-a slide block, 9-a guide rail, 10-a rear sensor, 11-a motor, 12-a lower limit sensor, 13-an upper limit sensor, 14-a spring, 15-a sucker, 16-a top plate, 17-a sliding plate, 18-a threaded sleeve, 19-a limiter, 20-a guide plate and 21-a buffer plate.

Detailed Description

The present invention will be further described by way of examples, but not limited thereto, with reference to the accompanying drawings.

Example 1:

as shown in fig. 1 to 6, the embodiment provides an automatic plate feeding machine, which includes a support, a translation device, a lifting device, and a material suction device, wherein the translation device is disposed on the support, the lifting device is mounted on the translation device, and the bottom of the lifting device is connected to the material suction device;

the translation device comprises an electric push rod 5, a sliding block 8 and a first fixing plate 4, the sliding block 8 is connected to the bottom of the first fixing plate 4, the sliding block 8 is installed on a guide rail 9 of the bracket, and the end of a piston rod of the electric push rod 5 is connected with the bottom of the first fixing plate 4;

the lifting device comprises a motor 11, a screw rod 1, a lifting rod 3, a sliding plate 17 and a second fixing plate 7, wherein the motor 11 is arranged on the upper surface of the first fixing plate 4, an output shaft of the motor 11 is in transmission connection with the screw rod 1, the screw rod 1 is in central threaded connection with the sliding plate 17, and the upper end and the lower end of the lifting rod 3 are respectively connected with the sliding plate 17 and the second fixing plate 7;

the material suction device comprises suction cups 15 and a buffer plate 21, the suction cups 15 are arranged at the bottom of the buffer plate 21 to form a suction cup matrix, and the buffer plate 21 is connected with the second fixing plate 7.

Particularly, the support is a frame construction, adopts the square steel to form through bolted connection, and it includes two horizontal poles, two connecting rods and four montants, and four montants are installed in the bottom of two horizontal poles, and two horizontal poles parallel arrangement are through two connecting rod fixed connection.

The guide rails 9 are arranged on the upper surfaces of the two cross rods, the guide rails 9 are convex guide rails, the sliding blocks 8 are concave sliding blocks, the sliding blocks 8 are connected with the guide rails 9 in a matched mode, the sliding blocks 8 can move back and forth on the guide rails 9, and the sliding blocks 8 can keep stability in the sliding process through concave-convex matching. The tail end of the guide rail 9 is provided with a rear sensor 10 which is a position sensor for acquiring the movement of the slide block 8 to the working position.

One end of a cylinder barrel of the electric push rod 5 is installed on the connecting rod between the two cross rods through bolts, the end of a piston rod of the electric push rod 5 is connected with the bottom of the first fixing plate 4, and four corners of the first fixing plate 4 are fixedly connected with the sliding block 8 through bolts.

Slide 17, first fixed plate 4, second fixed plate 7 and buffer board 21 are the rectangle steel sheet, have certain rigidity, and difficult emergence deformation guarantees the uniformity of slide 17, second fixed plate 7 and buffer board 21 lift in-process.

The center of the sliding plate 17 is provided with a threaded sleeve 18, the threaded sleeve 18 is welded with the sliding plate 17, the screw rod 1 penetrates through the threaded sleeve 18 and is in threaded connection with the threaded sleeve 18, and the rotation motion between the screw rod 1 and the threaded sleeve 18 is converted into the up-and-down motion of the lifting rod 3.

The quantity of lifter 3 is four, and four lifter 3 symmetries set up four corner positions at the slide, and the top and the slide 17 fixed connection of four lifter 3, the bottom pass behind first fixed plate 4 with second fixed plate 7 fixed connection.

The supporting plates 2 are symmetrically arranged on two sides of the first fixing plate 4, the top ends of the supporting plates 2 are connected through the top plate 16, a bearing is arranged at the center of the top plate 16, and the top end of the lead screw 1 is fixedly connected with the inner ring of the bearing.

The two side supporting plates 2 are symmetrically provided with a lower limiting sensor 12 and an upper limiting sensor 13, and the sliding plate 17 is provided with a limiter 19. In the up-and-down lifting process of the lifting rod, the lifting rod can be ensured to rise and fall within a reasonable stroke range through the touch of the stopper and the lower limit sensor or the upper limit sensor.

The suction cup 15 is connected to an external vacuum generator through a hose, and the suction cup generates a negative pressure by the vacuum generator, thereby sucking up the sheet.

The feeding machine further comprises a control system mainly composed of a PLC, and the motor 11, the electric push rod 5, the lower limiting sensor 12, the upper limiting sensor 13, the rear sensor 10 and the vacuum generator are respectively connected with the PLC. The control system mainly comprises a Programmable Logic Controller (PLC) as a core, and all actions are finished under the control of the PLC.

According to the technical scheme, the automatic feeding machine can be automatically operated by utilizing the PLC, the whole process does not need manual participation, and the working efficiency can be greatly improved.

Example 2:

an automatic plate feeding machine is structurally as described in embodiment 1, and is different in that: a guide plate 20 is connected between the two side support plates 2, the guide plate 20 is fixedly connected with the two side support plates 2 through bolts, and the four lifting rods 3 penetrate through the guide plate 20. The guide plate 20 can increase the stability of the lifting rod 3 in the up-and-down lifting process, and prevent the lifting rod from deviating.

Example 3:

an automatic plate feeding machine is structurally as described in embodiment 1, and is different in that: the buffer plate 21 and the second fixing plate 7 are connected by springs 14, and a pair of springs is provided at each of four corner joints of the buffer plate and the second fixing plate. When the suction cup is in contact with the plate, the suction cup can be buffered in strength, so that the suction cup is prevented from being damaged due to overlarge descending strength.

Example 4:

a working method of an automatic plate feeding machine utilizes the technical scheme of embodiment 3 to place a plate in the middle of a support in advance, and then starts the feeding machine, wherein the working process comprises the following steps:

1) in the initial working position, the buffer plate 21 is just above the plate 6 placing position, under the control of the PLC, the motor 11 is started, the screw rod 1 rotates, the lifting rod 3 falls down to drive the second fixing plate 7 and the buffer plate 21 to fall down until the sucker 15 contacts the plate 6; at this time, the motor 11 suspends the operation;

2) the vacuum generator works to make the sucking disc 15 generate negative pressure to suck the plate 6; the sucker matrix is in large-area contact with the plate 6, so that the adsorption stability of the plate 6 is ensured;

3) the motor 11 rotates reversely, the lifting rod 3 rises to drive the second fixing plate 7 and the buffer plate 21 to rise, and the plate 6 is lifted;

4) the electric push rod 5 works, the electric push rod 5 pushes the first fixing plate 4 to enable the sliding block 8 to move to the tail end of the guide rail 9, the sliding block 8 stops moving after touching the rear sensor 10, and therefore the electric push rod 5 stops working;

5) the motor 11 is started again, the lifting rod 3 falls down, and the second fixing plate 7 and the buffer plate 21 are driven to fall down;

6) the vacuum generator stops working, the sucking disc 15 releases the plate 6, and the plate 6 falls to the position to be processed;

7) the motor 11 rotates reversely to enable the screw rod 1 to rotate, the lifting rod 3 rises, and the second fixing plate 7 and the buffer plate 21 are driven to rise;

8) the electric push rod 5 retracts to return to the initial working position;

The above description is only for the specific embodiments of the present invention, and the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.

Claims

1. An automatic plate feeding machine is characterized by comprising a support, a translation device, a lifting device and a material sucking device, wherein the translation device is arranged on the support;

2. The automatic board feeding machine according to claim 1, wherein the support comprises two cross bars, two connecting bars and four vertical bars, the four vertical bars are installed at the bottom of the two cross bars, and the two cross bars are arranged in parallel and fixedly connected through the two connecting bars.

3. The automatic plate feeding machine according to claim 2, wherein the guide rails are arranged on the upper surfaces of the two cross rods, and the sliding blocks are connected with the guide rails in a matching manner; and the tail end of the guide rail is provided with a rear sensor.

4. The automatic plate feeder of claim 1, wherein the slide plate is centrally provided with a threaded sleeve, and the screw shaft extends through and is threadedly coupled to the threaded sleeve.

5. The automatic plate feeding machine according to claim 1, wherein the number of the lifting rods is four, four lifting rods are symmetrically arranged at four corners of the sliding plate, the top ends of the four lifting rods are fixedly connected with the sliding plate, and the bottom ends of the four lifting rods penetrate through the first fixing plate and then are connected with the second fixing plate.

6. The automatic plate feeding machine according to claim 3, wherein the first fixing plate is symmetrically provided with supporting plates at both sides, the top ends of the supporting plates are connected through a top plate, the center of the top plate is provided with a bearing, and the top end of the screw rod is fixedly connected with the inner ring of the bearing.

7. An automatic plate feeding machine according to claim 6, wherein the two side supporting plates are symmetrically provided with a lower limit sensor and an upper limit sensor, and the sliding plate is provided with a limiter.

8. An automatic sheet feeder as claimed in claim 7, wherein said suction cups are connected to an external vacuum generator by a hose.

9. The automatic board feeding machine according to claim 8, wherein the feeding machine further comprises a control system mainly composed of a PLC, and the motor, the electric push rod, the lower limit sensor, the upper limit sensor, the rear sensor and the vacuum generator are respectively connected with the PLC.

10. An operating method of an automatic plate material feeder according to any one of claims 1 to 9, wherein a plate material is previously placed in the middle of the rack and then the feeder is started, wherein the operating process comprises the steps of:

8) the electric push rod retracts to return to the initial position;