CN112407401B

CN112407401B - Full-automatic strapping machine for bar-shaped materials

Info

Publication number: CN112407401B
Application number: CN202011253150.5A
Authority: CN
Inventors: 韩家昌; 张伟; 李永刚
Original assignee: Tianjin Junsheng Technology Development Co ltd
Current assignee: Tianjin Junsheng Technology Development Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2022-03-04
Anticipated expiration: 2040-11-11
Also published as: CN112407401A

Abstract

The invention discloses a full-automatic strapping machine for strip-shaped materials, which comprises a rack, wherein a wire winding mechanism, a clamping and shearing mechanism driving sliding table and a wire twisting mechanism driving sliding table are arranged on the rack; the clamping and shearing mechanism driving sliding table is provided with a clamping and shearing mechanism for clamping and shearing an iron wire; and the wire twisting mechanism for screwing the end part of the wound iron wire is arranged on the wire twisting mechanism driving sliding table. The equipment adopts two sets of servos, wherein one set of servos controls the number of turns of wire winding, and the other set of servos controls the number of turns of wire twisting; the wire cutting and clamping integrated unique design is adopted, the cutting and clamping processes are completed at one time, and the cutting and clamping processes are driven by a guide rod cylinder; the screwing gear is in charge of screwing wires through the two wire guide seams and is driven by the gear set mechanism, and the screwing gear has the characteristics of simple structure, high efficiency, tightening of the bundle and low failure rate.

Description

Full-automatic strapping machine for bar-shaped materials

Technical Field

The invention belongs to the technical field of strip-shaped material bundling equipment in the industries of galvanized keels, wire manufacturing and the like, and particularly relates to a full-automatic bundling machine for strip-shaped materials.

Background

At present, in the industries of galvanized keels, wire manufacturing and the like, strip-shaped materials are often required to be bundled in the production process so as to be convenient for storage and transportation. The conventional method for bundling strip-shaped materials is manual galvanized iron wire bundling or double-crank-type bundling, the manual bundling has the defects of low bundling efficiency, high labor cost and high labor intensity, and the double-crank-type bundling has the problems of complex structure, easiness in bundle loosening and low efficiency.

In order to solve the problems in the prior art, a full-automatic strip material binding machine is provided.

Disclosure of Invention

The invention aims to provide a full-automatic strip material bundling machine which is simple in structure, high in efficiency, tight in bundling and low in failure rate.

In order to achieve the purpose, the invention provides the following technical scheme: a full-automatic strapping machine for strip-shaped materials comprises a rack, wherein a wire winding mechanism, a clamping and shearing mechanism driving sliding table and a wire twisting mechanism driving sliding table are arranged on the rack; the clamping and shearing mechanism driving sliding table is provided with a clamping and shearing mechanism for clamping and shearing an iron wire; the wire twisting mechanism driving sliding table is provided with a wire twisting mechanism for screwing the end part of the wound iron wire; the wire winding mechanism comprises a rotary support bearing, a corresponding gear ring is mounted on an inner ring of the rotary support bearing, an iron wire ring shaft rotating arm is fixedly arranged on the gear ring, an iron wire ring shaft is arranged at the outer end of the iron wire ring shaft rotating arm, an iron wire ring can be mounted on the iron wire ring shaft, and the gear ring is driven by a wire winding motor; the clamping and shearing mechanism comprises a first clamping and shearing part, a second clamping and shearing part and a clamping and shearing driving mechanism, wherein the first clamping and shearing part and the second clamping and shearing part are oppositely arranged, and the clamping and shearing driving mechanism drives the first clamping and shearing part and the second clamping and shearing part to be closed; the wire twisting mechanism comprises a wire twisting gear, and two wire guide slits are symmetrically formed in two sides of the circle center of the wire twisting gear; the wire twisting machine further comprises a gear set mechanism in transmission connection with the wire twisting gear, and a wire twisting motor for driving the gear set mechanism.

Preferably, the cross section of the first clamping and shearing part is of an L-shaped structure and comprises a first clamping block and a convex block vertically arranged with the first clamping block, and a first shearing edge is arranged at the upper edge of the convex block; the second clamping and shearing part comprises a second clamping block which is arranged opposite to the first clamping block, a groove for the lug to be embedded is formed in the second clamping block, and a second cutting edge corresponding to the first cutting edge is formed at the upper edge of the groove.

Preferably, the gear train mechanism comprises 2 small gears meshed with the screwing gear, a driven gear meshed with the 2 small gears and a driving gear meshed with the driven gear, and the driving gear is driven by the screwing motor; the radius of the pinion is smaller than that of the screwing gear.

Preferably, the gear ring and the iron wire ring shaft rotating arm are provided with a balancing weight rotating arm oppositely, and the outer end of the balancing weight rotating arm is provided with a balancing weight.

Preferably, the gear ring is in transmission connection with the wire winding motor through a speed reducer.

Preferably, when the rotating arm of the iron wire ring shaft drives the iron wire ring shaft to rotate to the highest position, a wire tightening wheel is arranged right below the position of the iron wire ring shaft, a wire outlet hole fixing plate is arranged below the wire tightening wheel, and a wire outlet hole is formed in the wire outlet hole fixing plate.

Preferably, the wire winding motor and the wire twisting motor are servo motors.

Preferably, a screwing gear baffle is arranged below the screw outlet hole fixing plate and opposite to the screwing mechanism, and the screwing gear baffle is of a Y-shaped structure.

Preferably, the clamping and shearing driving mechanism adopts a guide rod cylinder.

Preferably, still include PLC control system, press from both sides and cut mechanism drive slip table, twist a mechanism drive slip table, wire winding motor, twist a motor, guide arm cylinder and PLC control system electric connection.

Compared with the prior art, the invention has the beneficial effects that: the equipment adopts two sets of servos, wherein one set of servos controls the number of turns of wire winding, and the other set of servos controls the number of turns of wire twisting; the wire cutting and clamping integrated unique design is adopted, the cutting and clamping processes are completed at one time, and the cutting and clamping processes are driven by a guide rod cylinder; the screwing gear is in charge of screwing wires through the two wire guide seams and is driven by the gear set mechanism, and the screwing gear has the characteristics of simple structure, high efficiency, tightening of the bundle and low failure rate.

Drawings

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

FIG. 2 is a side view of a preferred embodiment of the present invention;

FIG. 3 is a schematic structural view of a clipping mechanism and a threading mechanism in a preferred embodiment of the present invention;

FIG. 4 is a schematic view of the closed state of the clipping mechanism according to a preferred embodiment of the present invention;

FIG. 5 is a schematic view of the first clipper of FIG. 4;

FIG. 6 is a schematic view of the second clipper of FIG. 4;

fig. 7 is a schematic structural view of a screwing mechanism in a preferred embodiment of the invention.

In the figure: 1. a frame; 2. a balancing weight; 3. a counterweight rotating arm; 4. a guide rod cylinder; 5. the iron wire ring shaft rotating arm; 6. an iron wire ring shaft; 7. the clamping and shearing mechanism drives the sliding table; 8. the screw twisting mechanism drives the sliding table; 9. a wire twisting motor; 10. a threading gear baffle; 11. a wire tightening wheel; 12. a clipping mechanism; 13. a wire twisting mechanism; 14. a slewing support bearing; 15. a ring gear; 16. a speed reducer; 17. a wire winding motor; 18. a first clipping portion; 19. a second clipping portion; 20. a first clamping block; 21. a bump; 22. a first shear blade; 23. a second clamping block; 24. a groove; 25. a second shear blade; 26. a screwing gear; 27. a guide wire seam; 28. a pinion gear; 29. a driven gear; 30. a drive gear.

Detailed Description

The following describes a preferred embodiment of the present invention with reference to the drawings, and the technical solution in a preferred embodiment of the present invention is clearly and completely described.

Referring to fig. 1-2, the present invention includes a frame 1, which is characterized in that: the frame 1 is provided with a wire winding mechanism, a clamping and shearing mechanism driving sliding table 7 and a wire twisting mechanism driving sliding table 8; the clamping and shearing mechanism driving sliding table 7 is provided with a clamping and shearing mechanism 12 for clamping and shearing an iron wire; and a wire twisting mechanism 13 for screwing the end part of the wound iron wire is arranged on the wire twisting mechanism driving sliding table 8.

As shown in figure 3, the feeding direction and the discharging direction of the strip materials are along the arrow direction, when the strip materials are bundled, the strip materials are fed from the feeding direction, the strip materials are horizontally placed on the rack for bundling operation, the bundling operation is completed, and the strip materials are taken out from the discharging direction. When the iron wire ring shaft rotating arm 5 moves the iron wire ring shaft 6 to rotate to the highest position, the iron wire ring shaft 6 is positioned right above the bar-shaped material.

Wire winding mechanism includes slewing bearing 14, and corresponding ring gear 15 is installed to slewing bearing 14 inner circle, and the fixed iron wire circle axle swinging boom 5 that is provided with on ring gear 15, iron wire circle axle swinging boom 5's outer end are provided with iron wire circle axle 6, the mountable iron wire circle on the iron wire circle axle 6, ring gear 15 is driven by wire winding motor 17.

In this embodiment, the wire winding motor 17 is a servo motor; ring gear 15 go up with iron wire circle axle swinging boom 5 is provided with balancing weight swinging boom 3 relatively, and balancing weight swinging boom 3's outer end is provided with balancing weight 2. The gear ring 15 is in transmission connection with the wire winding motor 17 through a speed reducer 16.

The iron wire circle designs 15 kilograms at most, through increasing 1: the load of the wire winding servo motor is reduced by a 20-speed reducer and a 7.5 kilogram counterweight, and meanwhile, the wire winding servo motor can drive a 2-die 118-tooth gear ring connected with an inner ring of the rotary support bearing 14 through a 2-die 30-tooth gear, so that the load of the servo motor is reduced. Wire winding servo motor drive ring gear 15 drives 14 inner circles of slewing bearing rotatory, and iron wire circle axle swinging boom 5 and iron wire circle axle 6 are rotatory appointed number of turns around the material, and the back stops.

Referring to fig. 3-6, the clipping mechanism 12 includes a first clipping portion 18 and a second clipping portion 19 disposed opposite to each other, and a clipping driving mechanism for driving the first clipping portion 18 and the second clipping portion 19 to close.

In this embodiment, the clamping and shearing driving mechanism adopts a guide rod cylinder 4; the section of the first clamping and shearing part 18 is of an L-shaped structure and comprises a first clamping block 20 and a convex block 21 which is perpendicular to the first clamping block 20, and a first shearing blade 22 is arranged at the upper edge of the convex block 21; the second clamping and shearing part 19 comprises a second clamping block 23 which is arranged opposite to the first clamping block 20, a groove 24 for embedding the convex block 21 is formed in the second clamping block 23, and a second cutting edge 25 corresponding to the first cutting edge 22 is formed at the upper edge of the groove 24. In operation, a galvanized iron wire is placed between the first shear blade 22 and the second shear blade 25, and after the projection 21 is pushed into the groove 24, the first shear blade 22 and the second shear blade 25 are engaged with each other to cut the iron wire, and meanwhile, the first clamping block 20 and the second clamping block 23 clamp the iron wire.

The cutting and clamping part is driven by a guide rod cylinder 4, the cylinder diameter is 40mm, the thrust is not lower than 60 kg when the air source is at 0.6mpa, and galvanized iron wires with the diameter of 1.2mm can be easily cut. The cutting edge is made of SKD11 material, and the unique design of once cutting and clamping is completed.

Referring to fig. 3 and 7, the screwing mechanism 13 includes a screwing gear 26, and two guide wire slits 27 are symmetrically formed at two sides of the circle center of the screwing gear 26; the wire twisting device further comprises a gear set mechanism in transmission connection with the wire twisting gear 26 and a wire twisting motor 9 for driving the gear set mechanism, wherein the wire twisting motor 9 is a servo motor.

In this embodiment, the gear train mechanism includes 2 pinions 28 engaged with the screwing gear 26, a driven gear 29 engaged with the 2 pinions 28, and a driving gear 30 engaged with the driven gear 29, the driving gear 30 being driven by the screwing motor 9; the pinion gear 28 has a smaller radius than the threading gear 26.

The invention has unique design of the screw-on mechanism 13, and the screw-on servo motor is driven by the 1.5-die gear set mechanism. The two pinions 28 simultaneously drive the screwing gear 26 to rotate, so that when the wire guide seam 27 of the screwing gear 26 rotates to one of the pinions 28, the other pinion 28 can also drive the screwing gear 26 to rotate, the screwing gear 26 is processed by linear cutting, and bosses on two sides play a role of a fixed shaft; the upper cover plate and the lower cover plate of the gear set mechanism are made of 6061 aluminum alloy, the weight is light, the toughness is high, and the middle round hole plays a role of a shaft sleeve.

In this embodiment, a threading gear baffle 10 is disposed on the frame 1 at a position opposite to the threading mechanism 13, and the threading gear baffle 10 is a "Y" shaped structure. The wire twisting wheel baffle 10 can assist the iron wires to smoothly enter the wire guiding seam 27 of the wire twisting wheel after the wire twisting mechanism 13 is pushed out; the wire is also prevented from slipping out of the wire slot 27 during tightening.

The wire twisting process is designed uniquely, when the first shear blade 22 and the second shear blade 25 are closed, the height between the bottom of the shear blade and the upper cover plate of the wire twisting gear set mechanism is 3-9mm, and a semi-closed space is formed by utilizing shear blade baffles on two sides, so that the iron wire heads can be prevented from rotating in the wire twisting process, the wire is bundled more tightly, and the space occupied by the residual iron wire heads after the wire is bundled is very small.

In this embodiment, when the iron wire winding shaft rotating arm 5 drives the iron wire winding shaft 6 to rotate to the highest position, a wire tightening wheel 11 is arranged right below the position of the iron wire winding shaft 6, and a wire outlet hole is arranged below the wire tightening wheel 11.

In this embodiment, still include PLC control system, press from both sides and cut mechanism drive slip table 7, twist a mechanism drive slip table 8, wire winding motor 17, twist a motor 9, guide arm cylinder 4 and PLC control system electric connection, PLC control system operates through the touch-sensitive screen.

The equipment is designed according to the concepts of simplicity, practicability, easy operation and zero fault, and equipment of different models can be suitable for bundling strip-shaped materials with different diameters and lengths of more than 50 centimeters.

The servo system adopts Siemens V90 series 400W drive and motor, and has the characteristics of high stability and quick response; the sliding tables are all made of SMC (sheet molding compound) brands; the guide rod cylinder is made of Sudoku brand; all gear sets are processed by linear cutting; the central control unit PLC adopts Siemens SMART 200SR30 and applies a sequence control programming mode; the touch screen adopts a domestic Kunlun general state.

The winding servo motor adopts an incremental encoder and utilizes a photoelectric switch as a zero position signal. The tightening servo motor also adopts an incremental encoder, and the zero position of the tightening wheel is detected through two laser diffuse reflection switch sensors; when the zero position is searched, a low-speed running mode is adopted, when a zero position signal is detected, the running is stopped, the position is cleared, and then the working position is operated in the position mode. The working position of the wire ring shaft 6 is right above the tightening wheel 11, and the working position of the tightening wheel 26 is that the two wire guide slits 27 are opposite to the tightening wheel baffle 10.

The working process of the invention is as follows:

1. drawing silk: the galvanized iron wire is vertically drawn out from the wire outlet hole through the wire tightening wheel 11, and the galvanized iron wire is not drawn out too much;

2. the process of clamping and shearing before wire winding: the guide rod cylinder 4 retreats, the shear blades are opened, and the drawn galvanized iron wire is placed between the shear blades on the two sides; the clamping and shearing mechanism drives the sliding table 7 to advance, the clamping and shearing mechanism 12 is pushed out, the guide rod cylinder 4 advances, the shearing blade is closed, and the wire shearing and clamping processes are completed;

3. winding: the clamping and shearing mechanism drives the sliding table 7 to retreat, and the clamping and shearing mechanism 12 is retracted to prepare for wire winding; the wire winding servo motor acts to drive the rotating arm 5 of the iron wire ring shaft to rotate to start wire winding, and the number of wire winding turns can be set from an operation interface;

4. guide wire: the wire twisting mechanism drives the sliding table 8 to automatically advance, the wire twisting mechanism 13 is pushed out, and two galvanized iron wires are smoothly guided into the wire guiding seam 27 of the wire twisting wheel with the help of the wire twisting gear baffle plate 10;

5. the clamping and shearing process before twisting: the shear blade guide rod cylinder 4 automatically retreats, the iron wire head cut off last time is loosened, and the screw-on gear 26 rotates 90 degrees to the side close to the motor; the clamping and shearing mechanism drives the sliding table 7 to automatically advance, and the second shear blade baffle is utilized to push down the iron wire head. The function of guiding the wire and pressing down the iron wire head is also a unique design point, and if the iron wire head is not pushed down, the screw cannot be screwed tightly; the cutting edge guide rod cylinder 4 automatically advances to complete the functions of cutting and clamping wires;

6. twisting: the screwing gear 26 rotates towards the side close to the motor, and after the number of screwing turns is reached, the number of automatic 'stopping' turns is the number of turns set in the interface, and 1/4 turns are subtracted; the screwing mechanism drives the sliding table 8 to drive the screwing mechanism 13 to automatically retreat so as to complete the screwing action. The clamping and shearing mechanism drives the sliding table 7 to automatically back and send a bundling completion signal to the control system;

7. initializing a system: and the wire winding servo motor and the wire twisting servo motor seek zero positions again, return to a working position and wait for bundling indication. Because the servo motor rotates in one direction for a long time, the accumulated error is larger and larger, so that zero searching is needed after each work is completed, which is also a unique point of the design.

In operation, the upper surface of the tightened gear needs to be kept clean, and lubricating grease is not coated, so that a zero position detection laser sensor of the tightened gear generates a false signal after the lubricating grease is coated. The number of turns is screwed up to the iron wire when tying up, will be according to the bar apart from the height of screwing up the wheel lower surface and decide to set for on the touch screen and screw up the number of turns, if: when the distance is 3CM, the iron wire can be screwed for 5 circles, and if the number of screwing circles is too large, the iron wire can be screwed off or the servo motor can be locked; if the number of turns is too small, the screw is not tightened.

Aiming at the defects of complex structure, low efficiency, easy loosening and high labor cost existing in manual galvanized iron wire bundling or double-crank-arm bundling in the process of bundling strip-shaped materials in the industries of galvanized keels, wire manufacturing and the like, the invention designs a full-automatic bundling machine, and the equipment adopts two sets of servos, wherein one set controls the number of turns of wire winding and the other set controls the number of turns of wire twisting; the wire cutting and clamping are integrally and uniquely designed and are driven by a guide rod cylinder; the screw mechanism drives the screw gear to screw the iron wire by the servo motor driving gear set mechanism, the efficiency is high, the bundle is tightly wound, for example, 2 circles of materials are wound, and 15 seconds are consumed when 5 circles of materials are tightly wound, and the device is already applied to practice.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a full-automatic strapper of bar material, includes frame (1), its characterized in that: the frame (1) is provided with a wire winding mechanism, a clamping and shearing mechanism driving sliding table (7) and a wire twisting mechanism driving sliding table (8); the clamping and shearing mechanism driving sliding table (7) is provided with a clamping and shearing mechanism (12) for clamping and shearing an iron wire; a screwing mechanism (13) for screwing the end part of the wound iron wire is arranged on the screwing mechanism driving sliding table (8);

the wire winding mechanism comprises a rotary supporting bearing (14), a corresponding gear ring (15) is mounted on the inner ring of the rotary supporting bearing (14), an iron wire ring shaft rotating arm (5) is fixedly arranged on the gear ring (15), an iron wire ring shaft (6) is arranged at the outer end of the iron wire ring shaft rotating arm (5), an iron wire ring can be mounted on the iron wire ring shaft (6), and the gear ring (15) is driven by a wire winding motor (17);

the clamping and shearing mechanism (12) comprises a first clamping and shearing part (18) and a second clamping and shearing part (19) which are oppositely arranged, and a clamping and shearing driving mechanism for driving the first clamping and shearing part (18) and the second clamping and shearing part (19) to be closed; the cross section of the first clamping and shearing part (18) is of an L-shaped structure and comprises a first clamping block (20) and a convex block (21) which is perpendicular to the first clamping block (20), and a first shearing edge (22) is formed at the upper edge of the convex block (21); the second clamping and shearing part (19) comprises a second clamping block (23) which is arranged opposite to the first clamping block (20), a groove (24) for embedding the bump (21) is formed in the second clamping block (23), and a second shearing blade (25) corresponding to the first shearing blade (22) is formed at the upper edge of the groove (24);

the wire twisting mechanism (13) comprises a wire twisting gear (26), and two wire guide slits (27) are symmetrically formed in the two sides of the circle center of the wire twisting gear (26); the wire twisting machine also comprises a gear set mechanism in transmission connection with the wire twisting gear (26) and a wire twisting motor (9) for driving the gear set mechanism.

2. The full-automatic strapping machine for strip-shaped materials according to claim 1, characterized in that: the gear set mechanism comprises 2 small gears (28) meshed with the wire twisting gear (26), driven gears (29) meshed with the 2 small gears (28), and driving gears (30) meshed with the driven gears (29), wherein the driving gears (30) are driven by the wire twisting motor (9); the radius of the pinion (28) is smaller than the radius of the screwing gear (26).

3. The full-automatic strapping machine for strip-shaped materials according to claim 1, characterized in that: the gear ring (15) is provided with a balancing weight rotating arm (3) relative to the iron wire ring shaft rotating arm (5), and the outer end of the balancing weight rotating arm (3) is provided with a balancing weight (2).

4. The full-automatic strapping machine for strip-shaped materials according to claim 3, characterized in that: the gear ring (15) is in transmission connection with the wire winding motor (17) through a speed reducer (16).

5. The full-automatic strapping machine for strip-shaped materials according to claim 1, characterized in that: when the iron wire ring shaft rotating arm (5) drives the iron wire ring shaft (6) to rotate to the highest position, a wire tightening wheel (11) is arranged right below the position of the iron wire ring shaft (6), a wire outlet hole fixing plate is arranged below the wire tightening wheel (11), and a wire outlet hole is formed in the wire outlet hole fixing plate.

6. The full-automatic strapping machine for strip-shaped materials according to claim 1, characterized in that: and the wire winding motor (17) and the wire twisting motor (9) both adopt servo motors.

7. The full-automatic strapping machine for strip-shaped materials according to claim 5, characterized in that: and a screwing gear baffle (10) is arranged on the screw outlet hole fixing plate at a position opposite to the screwing mechanism (13), and the screwing gear baffle (10) is of a Y-shaped structure.

8. The full-automatic strapping machine for strip-shaped materials according to claim 1, characterized in that: the clamping and shearing driving mechanism adopts a guide rod cylinder (4).

9. The fully automatic strapping machine for strip material as claimed in any of claims 1 to 8, characterized in that: the wire winding machine is characterized by further comprising a PLC control system, wherein the clamping and shearing mechanism driving sliding table (7), the wire twisting mechanism driving sliding table (8), the wire winding motor (17), the wire twisting motor (9), the guide rod cylinder (4) and the PLC control system are electrically connected.