CN214190243U

CN214190243U - Feeding looping mechanism of bundling machine

Info

Publication number: CN214190243U
Application number: CN202022331930.9U
Authority: CN
Inventors: 林旭斌
Original assignee: Taizhou Xutian Packaging Machinery Co ltd
Current assignee: Taizhou Xutian Packaging Machinery Co ltd
Priority date: 2020-08-24
Filing date: 2020-10-19
Publication date: 2021-09-14
Anticipated expiration: 2030-10-19
Also published as: CN214190244U; CN112278964B; CN213832231U; CN214190246U; CN112278964A; CN112278965A; CN112278965B; CN214190245U

Abstract

The utility model belongs to the technical field of packaging belt packing machines, in particular to a feeding looping mechanism of a belt binding machine, which comprises a frame, wherein a belt storage device, a looping mechanism, a feeding plate and a tightening device are arranged on the frame, the looping mechanism comprises a plurality of driving wheels, a belt component which is wound between the driving wheels and can transmit a belt, and a vacuum device which adsorbs the belt on the surface of the belt component; the belt assembly forms the track; the driving mechanism is arranged in the rack and used for conveying the belt into the track, the driving mechanism comprises a first driving motor, the first driving motor is connected with the driving wheel through a belt transmission set, and the first driving motor drives the belt to move on the feeding plate and enter the track for transportation. The utility model discloses a come to drive delivery sheet and ring knot mechanism simultaneously with an individual driving motor, improve synchronism and stability, the belt conveying is more accurate, the high quality.

Description

Feeding looping mechanism of bundling machine

Technical Field

The utility model belongs to the technical field of the wrapping tape baling press, concretely relates to material loading loop knot mechanism of banding machine.

Background

The strapping machine is a common packaging device, and can automatically wind a belt on an article only by placing the article in a working frame of the strapping machine, and then perform the winding and cutting operations on the wound belt.

The existing belt binding machine is provided with a belt storage mechanism, a feeding mechanism, a loop mechanism, a fusion welding mechanism, a belt shearing mechanism and the like; wherein, the loop mechanism adopts belt transmission and combines a fan vacuum pumping mode to transmit the belt; however, the existing belt binding machine usually adopts separate motors for controlling the loop mechanism and the feeding mechanism respectively, when the stopping is needed, the motors on both sides are closed at the same time, and if the motors are closed in tandem, the belt is easily excessively conveyed or pulled apart.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an adopt same driving motor to come to drive delivery sheet and ring knot mechanism simultaneously, improve synchronism and stability, the belt conveying is more accurate, the high quality.

The purpose of the utility model is realized like this:

a feeding loop structure of a belt binding machine comprises a frame; a tape storage device for storing a tape; the loop mechanism is used for advancing the belt along an annular track and forming a loop which is connected end to end; the feeding plate conveys the tapes on the tape storage device into the track; a tightening means for tightening the strap in a reverse direction and for tying a loop formed by the strap to the product to be banded; the looping mechanism comprises a plurality of driving wheels, a belt assembly which is wound among the driving wheels and can transmit the belt, and a vacuum device which adsorbs the belt on the surface of the belt assembly; the belt assembly forms the track; the driving mechanism is arranged in the rack and used for conveying the belt into the track, the driving mechanism comprises a first driving motor, the first driving motor is connected with the driving wheel through a belt transmission set, and the first driving motor drives the belt to move on the feeding plate and enter the track for transportation.

It is further provided that the looping mechanism further comprises a belt guide frame assembly comprising at least one movable cover member having an operative position and an open position, the cover member being in the operative position and covering at least a portion of the track during forward transport of the belt, the track and cover member cooperating to define a channel for the belt to pass through and restrict its removal; during the rearward tightening of the strap, the cover assembly is in the open position and does not cover the track so that the strap can be disengaged from the track; the width of the uncovered portion track is less than the width of the strap to be delivered when the cover portion is in the operative position.

It is further provided that the covering member includes a front frame and a rear frame, the front frame and the rear frame being respectively provided on the front side and the rear side of the rail, the front frame and the rear frame being movable toward and away from each other by the driving means; the front frame and the rear frame are close to each other and cover a part of the track during the forward transfer of the belt; during the tightening of the strap backwards, the front and rear frames move away from each other and clear the working area of the track.

The opposite surfaces of the front frame and the rear frame are provided with guide belt strips, and the guide belt strips can shield or separate from a working area of the track; the two guide belts approach each other to a set position during the forward conveying process of the belt, and the distance between the two guide belts is smaller than the width of the belt; the two guide belt strips and the belt assembly enclose the channel for the belt to pass through.

It is further provided that the tape storage device comprises: the belt storage bin is arranged at the lower part of the rack; a reel shaft provided in the tape storage bin for providing a mounting position for the reels so that the reels can output the tape to the outside; the upper-layer rolling shafts are arranged at intervals and are arranged at the upper part of the belt storage bin; the upper layer roller is used for providing a supporting shaft at the upper part for the belt so as to form a winding; a plurality of movable rollers which are arranged at intervals and are movably arranged in the belt storage bin and can be lifted up and down; when the movable roller moves downwards to a set position, a support shaft positioned at the lower part is provided for the belt, so that a winding is formed; when the movable roller moves upwards to a set position, the position of the movable roller in the belt storage bin is higher than the upper layer roller; the upper layer rolling shaft and the movable rolling shaft are arranged at intervals in the horizontal direction.

The belt storage device further comprises a belt storage connecting rod, and the belt storage connecting rod comprises a rotating rod and an auxiliary connecting rod fixed at the outer end of the rotating rod; the movable rollers are arranged on the auxiliary connecting rod, the rotating rod is rotatably arranged on the rack, and the rotating rod and the auxiliary connecting rod are arranged at a certain angle; when the rotating rod swings upwards to a set position, the auxiliary connecting rod is in a basically horizontal state and is positioned above the upper-layer rolling shaft; a buffer block is arranged on one side of the rotating rod and used for positioning the limit position of the rotating rod which swings downwards; the middle part of the rotating rod is provided with a tension spring, and the other end of the tension spring is connected to the rack; when the rotating rod is positioned at the uppermost position, the tension spring gives upward tension to the tape storage connecting rod which is larger than the gravity of the tape storage connecting rod and the movable roller; an inflection point exists in the rotating process of the rotating rod, and when the rotating rod passes through the inflection point and then goes upwards, the tension spring gives the rotating rod an upward tension; when the rotating rod passes through the inflection point and then moves downwards, the tension spring gives a downward tension to the rotating rod; the inflection point is when spring and dwang are a straight line.

The belt is tensioned between the upper roller and the lower roller after passing through the upper layer roller and the movable roller; the upper roller is provided with a baffle, and the outer end of the belt passes through the gap between the baffle and the upper roller and is conveyed to the feeding plate.

The front ends of the front frame and the rear frame are provided with outward-spread leading-in ports which face to the tail end of the feeding plate; a belt guide plate is arranged above the tail end of the feeding plate, the lower end opening of the belt guide plate faces the introducing port, the front end of the belt enters the introducing port along the feeding plate, and the belt advances towards the introducing port along the belt guide plate after passing through the rail.

The tightening device comprises a tightening motor, a tightening rocker, a tightening connecting plate, a tightening driving wheel and a tightening pinch roller, one end of the tightening connecting plate is connected to the tightening rocker, the other end of the tightening connecting plate is connected with the tightening pinch roller through a connecting assembly, the tightening motor is connected with the tightening driving wheel, and the feeding plate is located between the tightening driving wheel and the tightening pinch roller.

A belt feeding rocker is arranged in the rack, a rubber wheel is arranged on the belt feeding rocker, the rubber wheel is positioned above the feeding plate, and the belt feeding rocker is connected with the rack through a tension spring; an adjusting plate is arranged on the belt conveying rocker, one end of the adjusting plate is connected with the tension spring, a shaft sleeve is arranged at the other end of the adjusting plate, and the rubber wheel sleeve is sleeved on the shaft sleeve.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

the utility model is provided with a belt storage device, a feeding plate, a loop mechanism and a tightening device on the frame, the belt storage device is used for storing belts, the belt storage, the feeding and the loop of the belts are integrated, the mechanical operation and the control are realized, the working efficiency is high, the labor cost is reduced, and the operation is safe and convenient; the first driving motor controls the belt to move on the feeding plate and the loop knot to move in the track at the same time, so that the belt is kept consistent in the loop knot process of the conveyor, and the situation that the belt is broken or conveyed too much in the conveying process is avoided.

The utility model discloses a looping mechanism includes the conduction band frame subassembly, and conduction band frame subassembly includes a mobilizable cover part at least, and cover part has operating position and open position, and in the forward conveying process of belt, should cover the part and be in operating position and cover a partial track at least, and the track cooperates with cover part and forms the passageway that supplies the belt transmission and restrict its and break away from; during the rearward tightening of the strap, the cover assembly is in the open position and does not cover the track so that the strap can be disengaged from the track; according to the relative movement between the covering parts, the channel can be changed adaptively along with the belt, so that the belt can be better transported in the channel, the transporting accuracy and efficiency are improved, and the belt with different widths can be adapted.

The utility model discloses a store up belting includes upper roller bearing and the activity roller bearing that a plurality of intervals set up, and upper roller bearing is used for providing the back shaft that is located upper portion for the belt, and activity roller bearing movable mounting is in storing up the belt storehouse and but oscilaltion, when activity roller bearing downstream to setting for the position, provides the back shaft that is located the lower part for the belt to make the belt tensioning form between upper roller bearing and activity roller bearing and store up the area, make things convenient for the belt to be dragged by actuating mechanism and carry out the material loading.

The utility model discloses a store up and take the device still including storing up the area connecting rod, store up the dwang that the area connecting rod set up in the frame including rotating, fix the auxiliary connecting rod at the rotation rod end, movable roller bearing installs on auxiliary connecting rod, when the initial installation belt, the dwang upwards swings supreme settlement position, auxiliary connecting rod is in basic horizontally state and is in the top of upper roller bearing, movable roller bearing all is located upper roller bearing top promptly, pull the belt from movable roller bearing top this moment, the belt is located upper roller bearing and movable roller bearing top, then under the drive of dwang, movable roller bearing downwardly movement to setting up the position down, because upper roller bearing and movable roller bearing interval set up, can make the belt tensioning between upper roller bearing and movable roller bearing, thereby need not carry out manual winding in proper order to upper roller bearing and movable roller bearing, it is very convenient to operate.

The utility model is provided with the mutually connected rotating rod and the auxiliary connecting rod in the frame, the movable rolling shaft is arranged on the auxiliary connecting rod, the rotating rod can be rotationally arranged on the frame, the auxiliary connecting rod can move to drive the position of the movable rolling shaft to change, so that the movement of the movable rolling shaft can be kept consistent; in order to enhance the stability of the rotating rod, the middle part of the rotating rod is provided with a tension spring, the other end of the tension spring is connected to the rack, and the rotation of the rotating rod is limited by the tension spring; simultaneously, the downside that lies in the dwang in the frame is equipped with the buffer block, and the buffer block can cushion the dwang when the dwang rotates downwards to protect the dwang, and the buffer block can be used to fix a position the extreme position that the dwang swung downwards.

The head ends of the front frame and the rear frame of the utility model are formed with outward-expanding leading-in ports which face to the tail end of the feeding plate, so that the front ends of the belts can be conveniently guided to enter the leading-in ports along the feeding plate; the upper part of the tail end of the feeding plate is provided with a tape guide plate, the lower end opening of the tape guide plate faces the inlet, so that the tape can conveniently advance along the tape guide plate towards the inlet after passing through the track, and the tape cutting mechanism is arranged between the inlet and the tape guide plate, so that the tape can be cut after the tape is completely wound for one circle.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the interior of the frame of the present invention;

FIG. 3 is a schematic view of the exterior of the frame of the present invention;

FIG. 4 is a structural diagram of the present invention installed between the auxiliary connecting rod, the rotating rod and the frame;

FIG. 5 is a schematic view of the looping mechanism of the present invention;

FIG. 6 is a second simplified structural diagram of the looping mechanism of the present invention;

FIG. 7 is a simplified structural diagram of the tape cutting mechanism of the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 7 at A;

fig. 9 is a third schematic view of the looping mechanism of the present invention;

FIG. 10 is a fourth schematic view of the looping mechanism of the present invention;

FIG. 11 is an enlarged view of a portion of FIG. 10 at B;

FIG. 12 is a view of the structure of the rail entrance of the present invention;

fig. 13 is a schematic view of a connection structure between the front frame and the rear frame according to the present invention;

fig. 14 is a partial enlarged view of fig. 9 at C.

Detailed Description

The invention will be described in detail with reference to the accompanying drawings, which are shown in fig. 1-14:

as shown in fig. 1 and 2, the banding machine includes a frame 1, a belt storage device (for storing the belt 20 and supplying the belt 20 to the loop mechanism when necessary) arranged at the front side of the frame 1, a feeding plate and a loop mechanism (for advancing the belt 20 along an annular rail 42 and forming an end-to-end loop), a tightening device (for tightening the belt 20 reversely and tightly binding the loop formed by the belt 20 to a product to be banded), a welding mechanism (for welding the end and the tail of the loop together), a belt cutting mechanism (for cutting the belt 20 which is still connected except the loop), and a control system for controlling the above mechanisms.

An inlet 17 for a belt to enter is formed in the side face of the rack 1, a square frame-shaped mounting part 10 is arranged on a workbench of the rack 1, a control screen 18 is arranged on the front side of the workbench, an object to be banded is placed in the square frame-shaped mounting part 10, and the belt 20 is wound on the belt storage device; the machine frame 1 is internally provided with a feeding plate 41 and a driving mechanism 3 which are used for conveying the belt 20 into the track 42, the outer end of the belt 20 enters the feeding plate 41 through a belt storage device, the feeding plate 41 drives the belt 20 to enter the looping mechanism under the driving of the driving mechanism, meanwhile, the looping mechanism winds the belt on an object to be banded under the driving of the driving mechanism and tightly bundles the belt through a tightening device, the welding mechanism welds the belt and cuts off the belt through the belt cutting mechanism to complete the belt work, the whole process is mechanically controlled, and the work efficiency is high.

The specific structure and the working principle of the belt storage device are as follows: the tape storage device comprises a tape storage bin 2 arranged at the lower part of the front of the rack, a tape reel shaft is arranged in the tape storage bin 2, a tape reel 21 formed by winding a tape is sleeved on the tape reel shaft, a tape reel pressing plate 25 and a handle 26 are arranged on the outer side, located at the tape reel 21, of the outer end part of the tape reel shaft, the tape reel pressing plate 25 is pressed on the tape reel, and the tape reel is prevented from falling off due to centrifugal force in the process of following the rotation of the tape reel shaft. Meanwhile, in order to avoid the situation that the tape reel still keeps rotating under the inertia caused by the driving mechanism, the tape reel brake device 27 is arranged at the inner end of the tape reel shaft and positioned on the inner side of the rack, and the tape reel brake device 27 is an electromagnetic brake and can brake the tape reel in time.

As shown in fig. 3, a tape storage area is arranged on one side of the tape storage bin 2, which is located on the tape reel 21, and includes a plurality of upper rollers 22 and movable rollers 23 arranged at intervals, the upper rollers 22 are directly mounted on the frame 1, and the upper rollers 22 are used for providing support shafts for the tapes 20; the frame 1 is provided with a plurality of moving grooves 11, the movable rollers 23 can be movably arranged in the moving grooves 11, the moving grooves 11 are arranged between a plurality of upper-layer rollers 22 in an arc shape, the top ends of the moving grooves 11 are higher than the upper-layer rollers 22, the bottom ends of the moving grooves 11 are lower than the upper-layer rollers 22, as shown in fig. 1, when the belt winding device is used, the belt 20 is wound and tensioned between the upper-layer rollers 22 and the movable rollers 23, when the movable rollers 23 move downwards to the bottom ends of the moving grooves 11, supporting shafts located at the lower parts are provided for the belt 20, and the belt penetrates through the upper-layer rollers 22 and the movable rollers 23 to form winding. The design that the top end of the moving groove 11 is higher than the upper roller 22 can ensure that the movable roller 23 moves to the uppermost part of the moving groove when initially storing the belt, then the belt is directly pulled through the space between the upper roller 22 and the movable roller 23, and then the movable roller 23 is directly controlled to move downwards, so that the belt can be wound between the upper roller 22 and the movable roller 23 without being wound one by one, and the belt storage mode is simple, convenient and efficient.

As shown in fig. 4, a belt storage connecting rod is arranged on the inner side of the belt storage bin 2, the belt storage connecting rod comprises a rotating rod 12 and an auxiliary connecting rod 13 which are connected with each other, and the plurality of movable rollers 23 are mounted on the auxiliary connecting rod 13, so that the plurality of movable rollers can synchronously move in the moving groove 11; the rotating rod 12 is rotatably arranged on the rack 1, and the rotating rod 12 and the auxiliary connecting rod 13 are arranged at a certain angle; when the rotating rod 12 swings upwards to a set position, the auxiliary connecting rod 13 is in a basically horizontal state and is positioned above the upper-layer roller 22 (namely, the movable roller 23 is positioned at the top end of the moving groove 11); a limiting groove 121 is formed in the rotating rod 12, a limiting rod 14 is arranged in the limiting groove 121, a limiting part 15 is arranged on the rack 1, a tension spring 91 is arranged between the limiting part 15 and the limiting rod 14, and when the rotating rod 12 is located at the uppermost position, the tension spring provides upward tension to the tape storage connecting rod which is larger than the gravity of the tape storage connecting rod and the movable roller 23; when the rotating rod 12 is positioned at the lowest position, the tension spring gives a downward tension to the tape storage connecting rod, so that the tape can be stored again after being used; specifically, an inflection point exists in the rotating process of the rotating rod; above the inflection point, the tension spring generates upward elastic force to overcome gravity and facilitate threading; under the inflection point, the elasticity of the tension spring is matched with the gravity downwards, so that the belt is convenient to store. The inflection point refers to when extension spring and dwang are a straight line, and elasticity and the power of dwang offset each other this moment.

A buffer block 16 is further arranged on the lower side of the rotating rod 12, and the buffer block 16 is used for positioning the limit position of the rotating rod 12 swinging downwards; the upper side of the rotating rod 12 is provided with the photoelectric sensing device 162, when the tape is fed, the tape stored in the tape storage area is firstly used, and when the stored tape is nearly used up, the rotating rod 12 can ascend and enter the sensing area of the photoelectric sensing device 162; at this time, the photoelectric sensing device 162 sends a control signal to the main control system, the main control system opens the tape reel brake device 27, the tension spring elastically cooperates with the gravity of the rotating rod to pull the tape reel and store the tape in the tape storage area; when the belt storage is completed, the rotating rod 12 has already left the sensing area of the photoelectric sensing device 162, and the brake is braked again.

An adjusting roller group is arranged on one side of the frame 1, which is positioned in the belt storage area, and comprises an upper roller 281, a lower roller 282 and a bracket 19 for mounting the upper roller and the lower roller, a scale is arranged on one side of the bracket, and the belt 20 passes through the upper layer roller 22 and the movable roller 23 and then passes through and is tensioned between the upper roller 281 and the lower roller 282; the upper roller 281 is provided with a baffle 283, and the outer end of the belt 20 passes through the gap between the baffle 283 and the upper roller 281, enters the inlet 17, is conveyed onto the feeding plate 41, and then enters the conveying mechanism to be conveyed under the driving of the driving mechanism 3.

The looping mechanism comprises a feeding plate 41, a track 42 arranged in a frame-shaped mounting part above a rack workbench, a transmission driving set and a vacuum device for adsorbing the belt 20 on the surface of a belt assembly 44, wherein the transmission driving set comprises a plurality of transmission wheels 43 and the belt assembly 44 which is wound between the transmission wheels 43 and can transmit the belt; the rack is obliquely provided with a slotted plate 45, the feeding plate 41 is arranged on the slotted plate 45, and the front end of the feeding plate 41 is bent upwards to form a guide surface, so that the belt can be conveniently guided to enter the feeding plate 41 and then enter the conveying mechanism.

Five driving wheels are arranged, wherein one driving wheel is positioned at the entrance of the rail 42 at the rear side of the feeding plate 41, the belt passes through the feeding plate and then enters the rail 42 from the entrance, the main driving wheel 431 is arranged at the entrance, the other four driving wheels are driven wheels and are respectively positioned at four corners of the square frame-shaped mounting part, the belt assembly 44 is sleeved among the five driving wheels, and the belt assembly forms the rail 42.

The driving mechanism 3 comprises a first driving motor 31 and a second driving motor 32, a driving roller 33 is arranged on the first driving motor 31, the driving roller 33 is positioned on one side of the feeding plate 41, a first through groove 451 is formed on the grooved plate 45 and the feeding plate, the upper end surface of the driving roller 33 is positioned in the first through groove 451, and the driving roller 33 can drive the belt 20 to move on the feeding plate 41 and enter the track 42.

The outer end of the motor shaft of the first driving motor 31 is further provided with a belt transmission set 34, the belt transmission set 34 comprises a driving wheel 341 and a driven wheel 342 which are connected through a belt, the driving wheel 341 and the driving roller 33 are coaxially arranged, and the driving wheel 341 and the driving roller 33 are driven by the first driving motor 31 to synchronously rotate; the driven wheel 342 is connected with and drives the main driving wheel 431 positioned at the inlet of the track 42 to rotate; the movement of the conveying driving group and the driving roller 33 are driven by the first driving motor 31 together, and the two are kept synchronous, so that the belt can enter from the feeding plate and can be transported and transferred in the track better.

The looping mechanism further comprises a belt-guide-frame assembly, inside which the track 42 and the transport drive group are arranged, the belt-guide-frame assembly comprising at least one movable cover part, the cover part having an operating position and an open position,

during the forward transport of the strap 20, the cover portion is in the operative position and covers at least a portion of the track 42, the track 42 and the cover portion cooperating to form a channel for the strap 20 to pass through and restrict its removal; the width of the uncovered portion track 42 is less than the width of the strap 20 to be delivered when the cover portion is in the operative position. Thus, when the belt is positioned in the channel, the belt can be prevented from falling off during transportation due to the blocking of the covering part.

During the rearward tightening of the strap 20, the cover assembly is in the open position and does not cover the track 42 so that the strap 20 can be disengaged from the track 42 to be tightened around the object to be wrapped.

Specifically, the covering member includes a front frame 51 and a rear frame 52 provided on both sides of the rail 42, the front frame 51 being movable forward and backward relative to the rear frame 52 (the front frame 51 and the rear frame 52 are moved toward and away from each other by the driving means), and the front frame 51 and the rear frame 52 being moved toward each other and covering a part of the rail 42 during the forward transfer of the belt 20; during the process of tightening the strap 20 backwards, the front frame 51 and the rear frame 52 move away from each other and disengage from the working area of the rail 42. The opposite surfaces of the front frame 51 and the rear frame 52 are provided with guide belt strips 53, and the guide belt strips 53 can block or separate from the working area of the track 42; during the forward conveying process of the belt 20, the two belt guide strips 53 approach each other to a set position, and the distance between the two belt guide strips 53 is smaller than the width of the belt 20; the guide strip 53 and the belt assembly 44 form the track 42 therebetween for tape transfer. The design of the strap 53 can also guide the strap, introduce it into the track 42 from the beginning, adjust the direction of movement in the subsequent process; the front frame 51 is connected with the rear frame 52 through the tension spring 92, the front and rear frames move back and forth to conveniently adjust the belts fed into the track, so that the belts can be better attached to the belt assembly for conveying, and meanwhile, the belts can be adjusted according to the width of the belts, so that the belt conveyor is suitable for belts with different types and sizes.

The driving device for driving the front frame 51 and the rear frame 52 to move relative to each other is specifically as follows:

the left side and the right side of the front frame 51 and the rear frame 52 are respectively provided with a left sliding plate 54 and a right sliding plate 55, the left sliding plate 54/the right sliding plate 55 move up and down under the driving of the second driving motor 32, and the left sliding plate 54 and the right sliding plate 55 are connected through a steel wire component; fixing plates 56 are arranged on the left and right sides of the front frame 51 and the rear frame 52, a bump 561 is arranged on the fixing plates 56, and a sliding track 541 for the bump 561 to slide is arranged on the side edges of the left sliding plate 54 and the right sliding plate 55. As shown in fig. 11, the sliding track is curved with a concave center, so that the left and right sliding

plates

54 and 55 can make the distance between the protrusions 561 on the front and

rear frames

51 and 52 larger or smaller when moving up and down, thereby achieving the front and rear relative movement between the front and

rear frames

51 and 52.

The steel wire assembly comprises a left wire wheel 571 and a right wire wheel 572 which are positioned above the left sliding plate 54 and the right sliding plate 55, a steel wire 573 is tensioned between the left wire wheel 571 and the right wire wheel 572, and two ends of the steel wire 573 are respectively fixed with the left sliding plate 54 and the right sliding plate 55; the second driving motor 32 is provided with a gear box 321, the output end of the gear box 321 is provided with a first cam assembly, the first cam assembly comprises a fourth cam 64, the left sliding plate 54/the right sliding plate 55 is provided with a fourth roller 542, and the fourth roller 542 is driven by the fourth cam 64 to reciprocate up and down. The left sliding plate 54 and the right sliding plate 55 can synchronously move up and down through a motor and a cam, and the synchronism is high and the cost is saved.

The head ends of the front frame 51 and the rear frame 52 respectively expand outwards to form an outward-spreading introducing port 50, and the introducing port 50 faces to the tail end of the feeding plate 41, so that the tapes can conveniently enter the introducing port after passing through the feeding plate; the upper part of the tail end of the feeding plate 41 is provided with a guide belt plate 58, the lower end of the guide belt plate 58 is opened towards the introducing port 50, the front end of the belt 20 enters the introducing port 50 along the feeding plate 41, passes through the track 42 and then advances towards the introducing port 50 along the guide belt plate 58, and the belt is conveyed by one turn along the track to complete the winding of the belt on the object to be packaged. The fusion welding mechanism and the tape cutting mechanism are arranged between the introducing port 50 and the tape guide plate 58.

The vacuum device is arranged on one side of the square frame-shaped installation part and comprises a fan 8, the fan 8 discharges air in the square frame-shaped installation part to generate negative pressure to form a vacuum-like state, so that the belt 20 can be better attached to the rail 42 and moves under the driving of the conveying driving group, and the belt assembly 44 is a belt which can move to reduce belt conveying friction.

As shown in fig. 14, the belt assembly 44 includes an intermediate timing pulley 404 that receives the belt delivered by the previous timing pulley and transfers it to the next timing pulley; a plurality of synchronous belt grooves 402 are arranged on the middle synchronous belt wheel; the synchronous belt 403 between the middle synchronous pulley and the previous synchronous pulley and the synchronous belt 401 between the middle synchronous pulley and the next synchronous pulley are arranged in the synchronous belt groove 402 at intervals, and the design enables the belt to be transmitted from the previous synchronous belt to the next synchronous belt and to be smoothly transmitted to form a loop knot; if the belt only covers one synchronous belt in the previous transmission process, two synchronous belts are necessarily covered in the next transmission process; therefore, the width of the conveying belt covers at least two synchronous belts during a certain transfer.

A movement seat 71 is arranged in the frame, a photoelectric sensing switch 713, the tightening device, the welding mechanism and the tape cutting mechanism are arranged on the movement seat 71, after the tape 20 moves for a circle along the track 42, the tightening device tightens the tape 20, and the tape 20 is fused and cut off through the welding mechanism and the tape cutting mechanism.

The specific structure and motion mode of the tightening device are as follows:

as shown in fig. 5, the tightening device includes a tightening motor 731, a tightening rocker 732, a tightening plate 733, a tightening driving wheel 734 and a tightening wheel 735, one end of the tightening plate 733 is connected to the tightening rocker 732, the other end of the tightening plate 733 is connected to the tightening wheel 735 through a connecting assembly, the tightening motor 731 is connected to the tightening driving wheel 734 and drives the tightening driving wheel to rotate, the feeding plate 41 is located between the tightening driving wheel 734 and the tightening wheel 735, the slotted plate 45 and the feeding plate 41 are provided with a second through groove 452, and the outer side of the tightening driving wheel 734 is located in the second through groove 452.

The second driving motor 32 is provided with a gear box 321, the output end of the gear box 321 is provided with a second cam assembly, the second cam assembly comprises a first cam 61, the binding rocker 732 is provided with a first roller 736, and the first roller 736 is driven by the first cam 61 to reciprocate; when the first cam 61 drives the tightening rocker 732 to move downwards, the tightening rocker 732 drives the tightening connecting plate 733 to move downwards, so as to drive the tightening pressure wheel 735 to press downwards, the tightening pressure wheel 735 presses the belt 20 on the feeding plate 41, meanwhile, the tightening motor 731 drives the tightening driving wheel 734 to rotate, and the belt is driven to move reversely under the action of the tightening driving wheel 734 and the tightening pressure wheel, so that the function of tightening the belt is realized.

The specific structure and the motion mode of the tape cutting mechanism are as follows:

as shown in fig. 7 and 8, the tape cutting mechanism comprises a base 721 and a cutter 722 for cutting the tape 20, the welding mechanism comprises an ironing head 723 for melting and adhering the tape 20, a front knife 726 is arranged on the base 721 through an elastic component, and the front knife 726 is positioned between the cutter 722 and the end of the feeding plate 41; a side sliding plate 724 is arranged on the base 721, a sliding rail 711 matched with the side sliding plate 724 is arranged on the movement seat 71, and the sliding plate 724 moves up and down in the sliding rail 711; the cutter 722 is directly fixed on the upper end face of the base 721 through a bolt, a gasket is pressed between the cutter 722 and the base 721, the ironing head 723 is an ultrasonic ironing head, and the ultrasonic ironing head is safe and reliable in belt ironing, does not need to be heated in advance, and has low requirements on belts and high applicability; the iron 723 is provided in the center of the base 721; the cutter 722 comprises a mounting seat 728 connected with the base 721 and a cutting edge 729 positioned at the upper end of the mounting seat 728, and the mounting seat 728 is provided with a through hole 720 through which the upper end of the ironing head 723 penetrates; the front knife 726 is provided with a guide hole 727 for the tape 20 to pass through, and the tail end of the feeding plate 41 extends into the guide hole 727 so as to feed the tape 20 into the guide hole 727; the elastic component comprises a screw 75 and a spring 76 sleeved outside the screw 75, and the upper end and the lower end of the screw 75 are respectively connected with the front knife 726 and the base 721.

The second driving motor 32 is provided with a gear box 321, the output end of the gear box 321 is provided with a second cam assembly, the second cam assembly comprises a third cam 63 coaxially arranged with the first cam 61, the side sliding plate 724 is connected with a third roller 725, and the third roller 725 is driven by the third cam 63 to reciprocate up and down, so as to drive the base 721 on the side sliding plate 724 to move up and down.

As shown in fig. 6, a movable upper sliding plate 741 and a sliding component for driving the upper sliding plate 741 to move are disposed on the movement base 71, and the upper sliding plate 741 is located above the cutting knife 722 and the ironing head 723, and is used for assisting in pressing the tape, so that the tape can be conveniently processed by the ironing head and the cutting knife. The sliding assembly comprises a sliding plate rocker arm 742, a rocker shaft 743 and a sliding plate control rod 744, the upper end of the sliding plate rocker arm 742 is connected with the upper sliding plate 741, the lower end of the sliding plate rocker arm 742 and the lower end of the sliding plate control rod 744 are sleeved outside the rocker shaft 743, the second cam assembly comprises a second cam 62, a second roller 745 is arranged on the sliding plate control rod 744, and the second roller 745 is driven by the second cam 62 to reciprocate. After the tape winds around the rail for one circle, the tape continues to advance along the lower end of the tape guide plate 58, and when the tape advances to the area above the ironing head and the cutter and below the upper sliding plate 741, the cam 63 drives the whole three-knife structure (the front knife 726, the cutter 722 and the ironing head 723) to ascend; at this time, the front knife 726 firstly pushes the tape against the lower side of the upper sliding plate 741, then the tightening device retracts the tape (the retracted tape is the tape penetrating into the guide hole 727 on the front knife 726), after the tape retracts to a set distance, the cam 63 continues to rotate until the ultrasonic wave ironing head presses the upper and lower layers of tapes against the lower side of the upper sliding plate 741, the ultrasonic wave ironing head is started and the upper and lower layers of tapes are ironed into a whole, and the ultrasonic wave ironing head stops working; the cam 63 continues to drive the three-knife structure to ascend, the cutter 722 cuts the belt, the cam 63 rotates over the highest point, the three-knife structure descends and resets, and the upper sliding plate 741 moves outwards; at this time, the strap is completely wrapped on the product, and after the product is taken away, the upper sliding plate returns to the initial position for the next binding.

As shown in fig. 5, the movement seat 71 is provided with a positioning rod 712, and the tightening rocker 732 and the base 721 are connected to the positioning rod 712 through a tension spring 83, so as to facilitate the resetting of the tightening rocker 732 and the base 721.

A belt feeding rocker 771 is further arranged in the rack, a rubber wheel 772 is arranged on the belt feeding rocker 771, the rubber wheel 772 is positioned above the feeding plate 41, and the belt feeding rocker 771 is connected with the rack 1 through a tension spring 84; the belt feeding rocker 771 is provided with an adjusting plate 773, one end of the adjusting plate 773 is connected with the tension spring 84, the other end of the adjusting plate 773 is provided with a shaft sleeve, the rubber wheel 772 is sleeved on the shaft sleeve, and the belt feeding rubber wheel is positioned above the driving roller 33 and is matched with the driving roller 33 to convey the belt forward along the feeding plate 41.

The utility model discloses a theory of operation:

at the beginning of work, the tape reel 21 is installed on the tape reel shaft, and the tape reel pressing plate 25 and the handle 26 are installed on the outer side of the tape reel; starting the rotating rod 12, the rotating rod 12 drives the auxiliary connecting rod 13 to rotate upwards, so that the movable roller 23 moves to the top of the moving groove 11, then the outer end of the belt 20 is pulled out, the belt passes through the lower part of the movable roller 23 and the upper part of the upper roller 22 and is wound on the adjusting roller set, the rotating rod 12 drives the auxiliary connecting rod 13 to rotate downwards, the movable roller 23 moves to the bottom of the moving groove 11 along with the belt, so that the belt 20 is wound between the upper roller 22 and the movable roller 23, the outer end of the belt 20 extends into an inlet on the rack and is pulled onto the feeding plate 41, and the belt is positioned between the driving roller 33 and the rubber wheel 772.

After the start operation, the driving roller 33 is driven by the first driving motor 31 to rotate, and simultaneously the belt is conveyed forward along the feeding plate 41 by matching with the rubber wheel 772, the front end of the belt passes through the tail end of the feeding plate 41 and enters the track 42 along the leading-in opening 50, the first driving motor 31 is connected with the belt transmission set 34 and drives the transmission wheel 43 to rotate, so that the belt is driven to move in the track, in the process, the front frame 51 and the rear frame 52 move under the driving of the second driving motor 32 and the left sliding plate 54 and the right sliding plate 55 to adapt to the belt and stabilize the belt to be conveyed in the track, after the belt winds around the track for one circle, the belt enters along the lower end of the belt guide plate 58 to cover above the lower belt, and after the system senses, the tightening device is started to tighten the belt, so as to finish the belt packing.

The utility model discloses a first driving motor drives the delivery sheet simultaneously.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A feeding ring structure of a belt binding machine is characterized by comprising

A frame;

a tape storage device for storing a tape;

the loop mechanism is used for advancing the belt along an annular track and forming a loop which is connected end to end;

the feeding plate conveys the tapes on the tape storage device into the track;

a tightening means for tightening the strap in a reverse direction and for tying a loop formed by the strap to the product to be banded;

the looping mechanism comprises a plurality of driving wheels, a belt assembly which is wound among the driving wheels and can transmit the belt, and a vacuum device which adsorbs the belt on the surface of the belt assembly; the belt assembly forms the track;

the driving mechanism is arranged in the rack and used for conveying the belt into the track, the driving mechanism comprises a first driving motor, the first driving motor is connected with the driving wheel through a belt transmission set, and the first driving motor drives the belt to move on the feeding plate and enter the track for transportation.

2. The feeding ring mechanism of the belt bundling machine according to claim 1, wherein: the looping mechanism further comprises a belt guide frame assembly, the belt guide frame assembly at least comprises a movable cover part, the cover part is provided with a working position and an opening position, the cover part is arranged in the working position and covers at least one part of the track in the forward conveying process of the belt, and the track and the cover part are matched to form a channel for conveying the belt and limiting the belt to be separated; during tightening of the strap backwards, the cover part is in the open position and does not cover the track, so that the strap can be disengaged from the track; the width of the uncovered portion track is less than the width of the strap to be delivered when the cover portion is in the operative position.

3. The feeding ring mechanism of the belt bundling machine according to claim 2, wherein: the covering part comprises a front frame and a rear frame, the front frame and the rear frame are respectively arranged on the front side and the rear side of the track, and the front frame and the rear frame can approach or move away from each other under the action of a driving device; the front frame and the rear frame are close to each other and cover a part of the track during the forward transfer of the belt; during the tightening of the strap backwards, the front and rear frames move away from each other and clear the working area of the track.

4. The feeding ring mechanism of the belt bundling machine according to claim 3, wherein: the opposite surfaces of the front frame and the rear frame are provided with guide belt strips, and the guide belt strips can shield or separate from a working area of the track; the two guide belts approach each other to a set position during the forward conveying process of the belt, and the distance between the two guide belts is smaller than the width of the belt; the two guide belt strips and the belt assembly enclose the channel for the belt to pass through.

5. The feeding ring mechanism of the belt bundling machine according to claim 1, wherein: the tape storage device comprises:

the belt storage bin is arranged at the lower part of the rack;

a reel shaft provided in the tape storage bin for providing a mounting position for the reels so that the reels can output the tape to the outside;

the upper-layer rolling shafts are arranged at intervals and are arranged at the upper part of the belt storage bin; the upper layer roller is used for providing a supporting shaft at the upper part for the belt so as to form a winding;

a plurality of movable rollers which are arranged at intervals and are movably arranged in the belt storage bin and can be lifted up and down; when the movable roller moves downwards to a set position, a support shaft positioned at the lower part is provided for the belt, so that a winding is formed;

when the movable roller moves upwards to a set position, the position of the movable roller in the belt storage bin is higher than the upper layer roller;

the upper layer rolling shaft and the movable rolling shaft are arranged at intervals in the horizontal direction.

6. The feeding ring mechanism of the belt bundling machine of claim 5, wherein: the belt storage device also comprises a belt storage connecting rod,

the belt storage connecting rod comprises a rotating rod and an auxiliary connecting rod fixed at the outer end of the rotating rod; the plurality of movable rollers are arranged on the auxiliary connecting rod, the rotating rod can be rotatably arranged on the frame,

the rotating rod and the auxiliary connecting rod are arranged at a certain angle; when the rotating rod swings upwards to a set position, the auxiliary connecting rod is in a basically horizontal state and is positioned above the upper-layer rolling shaft;

a buffer block is arranged on one side of the rotating rod and used for positioning the limit position of the rotating rod which swings downwards;

the middle part of the rotating rod is provided with a tension spring, and the other end of the tension spring is connected to the rack;

when the rotating rod is positioned at the uppermost position, the tension spring gives upward tension to the tape storage connecting rod which is larger than the gravity of the tape storage connecting rod and the movable roller;

an inflection point exists in the rotating process of the rotating rod, and when the rotating rod passes through the inflection point and then goes upwards, the tension spring gives the rotating rod an upward tension; when the rotating rod passes through the inflection point and then moves downwards, the tension spring gives a downward tension to the rotating rod; the inflection point is when spring and dwang are a straight line.

7. The feeding ring mechanism of the belt bundling machine according to claim 5 or 6, wherein: an adjusting roller group is arranged on one side of the rack, the adjusting roller group comprises an upper roller and a lower roller, and the belt is tensioned between the upper roller and the lower roller after passing through the upper layer roller and the movable roller; the upper roller is provided with a baffle, and the outer end of the belt passes through the gap between the baffle and the upper roller and is conveyed to the feeding plate.

8. The feeding ring mechanism of the belt bundling machine according to claim 3, wherein: the front ends of the front frame and the rear frame are provided with outward-spreading guide-in ports, and the guide-in ports face to the tail end of the feeding plate; a belt guide plate is arranged above the tail end of the feeding plate, the lower end opening of the belt guide plate faces the introducing port, the front end of the belt enters the introducing port along the feeding plate, and the belt advances towards the introducing port along the belt guide plate after passing through the rail.

9. The feeding ring mechanism of the belt bundling machine according to claim 1, wherein: the tightening device comprises a tightening motor, a tightening rocker, a tightening connecting plate, a tightening driving wheel and a tightening pinch roller, one end of the tightening connecting plate is connected to the tightening rocker, the other end of the tightening connecting plate is connected with the tightening pinch roller through a connecting assembly, the tightening motor is connected with the tightening driving wheel, and the feeding plate is located between the tightening driving wheel and the tightening pinch roller.

10. The feeding ring mechanism of the belt bundling machine according to claim 1, wherein: a belt feeding rocker is arranged in the rack, a rubber wheel is arranged on the belt feeding rocker and is positioned above the feeding plate, and the belt feeding rocker is connected with the rack through a tension spring; an adjusting plate is arranged on the belt conveying rocker, one end of the adjusting plate is connected with the tension spring, a shaft sleeve is arranged at the other end of the adjusting plate, and the rubber wheel sleeve is sleeved on the shaft sleeve.