CN210391737U

CN210391737U - Automatic tying machine

Info

Publication number: CN210391737U
Application number: CN201921185781.0U
Authority: CN
Inventors: 欧阳安才
Original assignee: Individual
Current assignee: Liang Lufa
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-04-24
Anticipated expiration: 2029-07-25

Abstract

The utility model discloses an automatic tying machine, which comprises a frame, wherein the frame is provided with a power driving component, a feeding mechanism, a slider-crank mechanism, a photoelectric inductive switch, a tying die component and an infrared proximity switch; the tying die assembly comprises a fixed die and a movable die which are matched with each other, the fixed die is connected with the base, the movable die is movably matched in a sliding groove on the fixed die to slide in a reciprocating mode, and the movable die comprises a cutting bending push rod and an extrusion forming push rod; one side of the fixed die is provided with a feeding hole, the feeding mechanism is matched with the feeding hole to convey a steel wire for binding in the fixed die, the bottom of the fixed die is also provided with a steel wire limiting column, the steel wire is cut off and bent into U-shaped bent nails through the relative extrusion action of the steel wire limiting column and the cutting bending push rods, and the U-shaped bent nails are changed into O-shaped ring nails to finish binding the plastic bag under the further extrusion action of the extrusion forming push rods. The utility model discloses a photoelectric sensing switch responds to the starting sequence, accomplishes the steel wire automatically and cuts off, crooked and the shaping action such as prick a mouthful, and degree of automation is high, pricks a mouthful efficient.

Description

Automatic tying machine

Technical Field

The utility model belongs to the technical field of equipment for packing, concretely relates to automatic prick a mouthful machine.

Background

For supermarket bulk food, bagging, weighing and tying are indispensable links, wherein tying in time can prevent a speculative consumer from mixing unweighted food. At present, the tying is mainly performed by using two types of adhesive tape tying and aluminum nail tying, and the adhesive tape tying easily pollutes food and has unsafe factors; the aluminum nail tying opening is mostly made of manual equipment, tying action requirements are high, tying quality of different people for operating the tying opening is uneven, time and labor are wasted in nail replacement, and working efficiency is affected.

Disclosure of Invention

For solving the above problems of the prior art, the utility model adopts the technical scheme that:

the utility model provides an automatic prick a mouthful machine, includes the frame, its characterized in that: the base is provided with a power driving assembly, a feeding mechanism, a slider-crank mechanism, a photoelectric sensing switch, a tying die assembly and an infrared proximity switch; the tying die assembly comprises a fixed die and a movable die which are matched with each other, the fixed die is fixedly connected to the base, the movable die is movably matched in a chute on the fixed die, and actions such as cutting, bending, forming and tying of a steel wire are completed through reciprocating sliding of the movable die; and a feeding hole is formed in one side of the fixed die, and the feeding mechanism is matched with the feeding hole to continuously convey the steel wire for tying into the fixed die.

The automatic tying machine is characterized in that: the power driving assembly comprises a horizontal gear set and a vertical gear set, the horizontal gear set is connected with the slider-crank mechanism, and the vertical gear set is connected with the feeding mechanism.

The automatic tying machine is characterized in that: the feeding mechanism comprises a pair of feeding pinch rollers and feeding large wheels which rotate in opposite directions, a gap adjusting screw rod is further arranged on the feeding mechanism, and the steel wire is conveyed forwards through a gap between the feeding pinch rollers and the feeding large wheels.

The automatic tying machine is characterized in that: the crank sliding block mechanism comprises a disc cam, a crank connecting rod and a groove track, and a positioning pin is arranged at the eccentric shaft of the disc cam.

The automatic tying machine is characterized in that: the improved die is characterized in that a die adjusting block is arranged at the front end of the fixed die, the photoelectric sensing switch is fixed at the front end of the side of the die adjusting block, a position adjusting screw is further arranged on the side surface of the die adjusting block, a semi-arc binding hole is formed in the inner side of the die adjusting block, a steel wire limiting column is further arranged at the bottom end of the fixed die, and the steel wire limiting column is movably connected to the bottom of the fixed die through a spring.

The automatic tying machine is characterized in that: the movable mold comprises a cutting bending push rod and an extrusion molding push rod. One end of the cutting bending push rod is movably connected to a groove track of the slider-crank mechanism through a screw rod and is driven by the rotation of the disc-shaped cam to reciprocate; the extrusion forming push rod is fixedly connected to the disc-shaped cam eccentric shaft positioning pin through a crank connecting rod, and the crank connecting rod drives the extrusion forming push rod to reciprocate in the groove of the cutting bending push rod.

The automatic tying machine is characterized in that: the cutting device is characterized in that a positioning groove is formed in the front end of the cutting bent push rod, a cutter is further arranged on one side of the positioning groove, and a demolding sliding shoulder is arranged at the bottom of the cutting bent push rod. During operation, the disc-shaped cam rotates to drive the cutting bending push rod to slide forwards in the sliding groove of the fixed die, the steel wire is cut off by the cutter, two ends of the steel wire fall into the positioning groove, the middle section of the steel wire abuts against the steel wire limiting column, the cutting bending push rod continuously slides forwards, the steel wire is bent into the U-shaped curved nail under the relative extrusion action of the positioning groove and the steel wire limiting column, the cutting bending push rod continuously moves forwards to the demoulding sliding shoulder, the steel wire limiting column is pushed downwards to open under the extrusion action of the demoulding sliding shoulder, and the U-shaped curved nail moves forwards along with the cutting bending push rod and is pushed to the position of the strapping.

The automatic tying machine is characterized in that: the extrusion forming push rod slides back and forth in the groove of the cutting bending push rod, the U-shaped curved nails are further bent at the position of the strapping hole through forward extrusion to form O-shaped ring nails, and then the opening of the plastic bag is strapped.

The automatic tying machine is characterized in that: the infrared proximity switch is fixed on the base and used for controlling the slider-crank mechanism to complete one working cycle every time the slider-crank mechanism rotates one circle.

The utility model has the advantages and positive effects that: the automatic starting program is induced through the photoelectric induction switch, the actions of cutting, bending, forming, tying and the like of the steel wire are automatically completed, the automation degree is high, and the tying efficiency is high.

Drawings

Fig. 1 is a schematic view of the overall structure of an automatic tying machine.

Fig. 2 is a schematic view of an assembly structure of an automatic tying machine.

FIG. 3 is a schematic view of a tying die assembly.

Fig. 4 is a schematic view of a cutting curved push rod structure.

In the drawing, 100-engine base; 1-a power drive assembly; 11-horizontal gear set; 12-a vertical gear set; 2, a feeding mechanism; 21-feeding pinch roller; 22-feeding large wheel; 23-clearance adjusting screw; 3-crank slide block mechanism; 31-a disc cam; 312-positioning pin; 32-crank link; 33-groove track; 4, a photoelectric sensing switch; 5, tying a die assembly; 51, fixing a die; 511-a chute; 512-a feed hole; 513 — a mold adjusting block; 5131-position adjusting screw; 5132-bundling hole; 514-steel wire spacing column; 52-moving mould; 521-cutting the bent push rod; 5211-positioning groove; 5212-a cutter; 5213-demolding slide shoulders; 522-extrusion forming of push rod; 6-infrared proximity switch.

Detailed Description

For a better understanding of the present invention, the present invention will be further described below with reference to specific embodiments.

As shown in fig. 1, an automatic tying machine comprises a machine base 100, wherein a power driving assembly 1, a feeding mechanism 2, a slider-crank mechanism 3, a photoelectric inductive switch 4, a tying mold assembly 5 and an infrared proximity switch 6 are arranged on the machine base; the tying die component 5 comprises a fixed die 51 and a movable die 52 which are matched with each other, the fixed die 51 is fixedly connected to the base 100, and the movable die 52 is movably matched in a chute 511 on the fixed die 51 and finishes actions of cutting, bending, forming and tying a steel wire and the like through reciprocating sliding; one side of the fixed die 51 is provided with a feed hole 512, and the feeding mechanism 2 is matched with the feed hole 512 to continuously convey steel wires for tying into the fixed die 51.

Further, the power driving assembly 1 comprises a horizontal gear set 11 and a vertical gear set 12, wherein the horizontal gear set 11 is connected with the slider-crank mechanism 3, and the vertical gear set 12 is connected with the feeding mechanism 2.

Further, the feeding mechanism 2 comprises a pair of feeding pinch rollers 21 and a pair of feeding large wheels 22 which rotate in opposite directions, a gap adjusting screw 23 is further arranged on the feeding mechanism 2, the steel wire is conveyed forwards through a gap between the feeding pinch rollers 21 and the feeding large wheels 22, the size of the gap can be adjusted through the gap adjusting screw 23 to ensure smooth feeding of the steel wire, and meanwhile, the feeding pinch rollers 21 can be separated upwards through loosening the gap adjusting screw 23 to realize material changing of the steel wire.

Further, the crank block mechanism 3 includes a disc cam 31, a crank link 32 and a grooved rail 33, and a positioning pin 312 is provided at an eccentric shaft of the disc cam 31.

Further, the front end of the fixed die 51 is provided with a die adjusting block 513, the photoelectric sensing switch 4 is fixed at the front end of the side of the die adjusting block 513, the side surface of the die adjusting block 513 is further provided with a position adjusting screw 5131, the die adjusting block 513 can move back and forth through adjustment to meet the binding requirements of packaging bags of different specifications, the inner side of the die adjusting block 513 is provided with a semi-arc-shaped binding hole 5132, the bottom end of the fixed die 51 is further provided with a steel wire limiting column 514, and the steel wire limiting column 514 is movably connected to the bottom of the fixed die 51 through a spring.

Further, the movable die 52 includes a cut-bent push rod 521 and an extruded push rod 522. One end of the cutting bending push rod 521 is movably connected to the groove track 33 of the crank slide block mechanism 3 through a screw rod, and is driven by the rotation of the disc-shaped cam 31 to reciprocate in the sliding groove 511 of the fixed die 51; the extrusion forming push rod 522 is fixedly connected to the eccentric shaft positioning pin 312 of the disc cam 31 by the crank connecting rod 32, and is driven by the crank connecting rod 32 to reciprocate in the groove of the cutting bending push rod 521.

Furthermore, a positioning groove 5211 is formed at the front end of the cutting curved push rod 521, a cutter 5212 is further arranged on one side of the positioning groove 5211, and a demoulding sliding shoulder 5213 is arranged at the bottom of the cutting curved push rod 521.

Further, the infrared proximity switch 6 is fixed to the base 100.

When the automatic opening and closing device works, when a packaging bag is placed in a binding hole 5132, a program is automatically started after the induction of a photoelectric induction switch 4, firstly, a power driving assembly 1 drives a feeding pressing wheel 21 and a feeding large wheel 22 on a feeding mechanism 2 to rotate oppositely through a vertical gear set 12, the feeding is carried out into a binding mold assembly 5 through a feeding hole 512, when a steel wire is propped against the inner wall of a fixed mold 51, the power driving assembly 1 drives a disc-shaped cam 31 on a crank sliding block mechanism 3 to rotate through a horizontal gear set 11, an infrared proximity switch 6 is triggered, the disc-shaped cam 31 rotates to drive a cutting bending push rod 521 to slide forwards in a sliding groove 511 of the fixed mold 51, the steel wire is cut off by a cutter 5212 under the action of shearing force, two ends of the steel wire fall into a positioning groove 5211, the middle section of the power driving assembly abuts against a steel wire limiting column 514, the cutting bending push, the cutting bent push rod 521 continues to move forward to the demoulding slide shoulder 5213, under the pushing action of the demoulding slide shoulder 5213, the wire limiting column 514 is pushed downwards, and the U-shaped bent nail is pushed to the position of the binding hole 5132 along with the forward movement of the cutting bent push rod 521. The extrusion forming push rod 522 is driven by the crank connecting rod 32 to move forwards in the groove of the cutting bending push rod 521, and the U-shaped curved nail is further bent at the position of the strapping hole 5132 to form an O-shaped ring nail through secondary extrusion, so that the strapping opening of the packaging bag is completed. Then, under the driving of the power driving assembly 1, the cutting bending push rod 521 and the extrusion-molded push rod 522 are returned to the initial positions, the infrared proximity switch 6 is triggered again, the disc-shaped cam 31 stops rotating, and the next tying operation is waited.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. An automatic tying machine, includes frame (100), its characterized in that: the base is provided with a power driving assembly (1), a feeding mechanism (2), a slider-crank mechanism (3), a photoelectric sensing switch (4), a tying die assembly (5) and an infrared proximity switch (6); the tying die component (5) comprises a fixed die (51) and a movable die (52) which are matched with each other, the fixed die (51) is fixedly connected to the base (100), the movable die (52) is movably matched in a sliding groove (511) on the fixed die (51), and actions such as cutting, bending, forming and tying of a steel wire are completed through reciprocating sliding of the movable die; and a feeding hole (512) is formed in one side of the fixed die (51), and the feeding mechanism (2) is matched with the feeding hole (512) to continuously convey steel wires for tying into the fixed die (51).

2. An automatic tying machine according to claim 1, characterized in that: the power driving assembly (1) comprises a horizontal gear set (11) and a vertical gear set (12), the horizontal gear set (11) is connected with the slider-crank mechanism (3), and the vertical gear set (12) is connected with the feeding mechanism (2).

3. An automatic tying machine according to claim 1, characterized in that: the feeding mechanism (2) comprises a pair of feeding pressing wheels (21) and a pair of feeding large wheels (22) which rotate in opposite directions, a gap adjusting screw rod (23) is further arranged on the feeding mechanism (2), and the steel wire is conveyed forwards through a gap between the feeding pressing wheels (21) and the feeding large wheels (22).

4. An automatic tying machine according to claim 1, characterized in that: the crank sliding block mechanism (3) comprises a disc cam (31), a crank connecting rod (32) and a groove track (33), and a positioning pin (312) is arranged at the eccentric shaft of the disc cam (31).

5. An automatic tying machine according to claim 1, characterized in that: the utility model discloses a mould, including cover half (51), cover half (51) front end, mould regulating block (513) side is equipped with a position adjusting screw (5131), can be used to adjust mould regulating block (513) back-and-forth movement, photoelectric sensing switch (4) are fixed in mould regulating block (513) side front end, mould regulating block (513) inboard is opened has semi-arc shape binding hole (5132), cover half (51) bottom still is equipped with spacing post of steel wire (514), spacing post of steel wire (514) is by spring swing joint in cover half (51) bottom.

6. An automatic tying machine according to claim 1, characterized in that: the moving die (52) comprises a cutting bent push rod (521) and an extrusion forming push rod (522), one end of the cutting bent push rod (521) is movably connected to a groove track (33) of the crank slide block mechanism (3) through a screw rod, and the cutting bent push rod is driven to reciprocate by the rotation of the disc cam (31); the extrusion forming push rod (522) is fixedly connected to the eccentric shaft positioning pin (312) of the disc cam (31) through a crank connecting rod (32) and is driven by the crank connecting rod (32) to reciprocate.

7. An automatic tying machine according to claim 6, characterized in that: the cutting bending push rod (521) is characterized in that a positioning groove (5211) is arranged at the front end of the cutting bending push rod (521), a cutter (5212) is further arranged on one side of the positioning groove (5211), a demolding sliding shoulder (5213) is arranged at the bottom of the cutting bending push rod (521), a steel wire is cut off by the cutter (5212) and then falls into the positioning groove (5211), the steel wire is bent into a U-shaped bent nail under the extrusion action, and then the U-shaped bent nail is pushed to a working position along with the cutting bending push rod (521) in a forward sliding mode.

8. An automatic tying machine according to claim 6, characterized in that: the extrusion forming push rod (522) slides back and forth in the groove of the cutting bending push rod (521), and the U-shaped curved nails are further bent to form O-shaped ring nails through extrusion, so that the tying of the plastic bag is completed.

9. An automatic tying machine according to claim 1, characterized in that: the infrared proximity switch (6) is fixed on the machine base (100) and is used for controlling the slider-crank mechanism (3) to complete one working cycle every time the slider-crank mechanism rotates one circle.