CN2224157Y - Extruding-type fully-automatic bundling machine for plastic bag - Google Patents

Abstract

The utility model relates to an extruding-type fully-automatic bundling machine with a plastic band. The utility model utilizes three single-phase driving motors with different parameters such as rotational speed, power, etc. The three single-phase driving motors respectively drive a band conveying mechanism with peculiar and original structural design, a bundling band coiling mechanism, and a bundling band extruding, frictionating and binding mechanism to complete all the operations of articles bundling independently. The utility model has the advantages of rapidity, convenience, high efficiency, safety, little possibility of producing harmful gas and off-flavor and no pollution to the environment. The extruding-type fully-automatic bundling machine with a plastic band utilizes a monolithic microcomputer and a switch cam to control a circuit, the sizes of the diameter of a bundling band ring and the bundling force can be adjusted, and the utility model has the functions of remembering and storage.

Description

Squash type plastic tape full automaticity strapper

The utility model relates to a kind of device of enlacement packaging object, exactly, relates to and a kind ofly crosses mechanical action with the plastics narrow bandpass, makes its port extruding, friction, bonding and mechanical device that connection with wrapping of piece is tied up.

The plastic tape knot installation of sales applications on the home market all utilizes the hot melt adhesive plastic tape now.Promptly before strapping goods, need earlier plastic tape preheating certain hour, again through sending steps such as band, taut band, pressurization, heating, bonding, cut-out to finish whole operations of strapping goods.Because the interface at strapping adds in the process of heat bonding, can produce the pernicious gas and the peculiar smell that diminish health, pollute surrounding environment, make the operating personal of machine quite be subjected to its evil.

The purpose of this utility model provides a kind of the do not have pernicious gas of hot melt adhesive and the squash type plastic tape full automaticity strapper of peculiar smell when using operation.

The utility model is achieved in that it includes: casing, frame, motor, gear, cam, pawl ratchet are paid and by the control circuit that single chip microcomputer constitutes, be it is characterized in that: this device is equipped with plastic tape tight belt-feeding mechanism, wreathing mechanism of binding belt and strapping extruding, friction and the adhesion mechanism that the single-phase drive motor by three different capacities, rotating speed constitutes respectively; On its main machine shaft, be coaxially installed with rigidity master cam and each motor rotation start and stop of the control whether plastic switch cam of controlling each mechanism's mechanical component job procedure respectively.

Above-mentioned tight belt-feeding mechanism is by being installed in driving gear that sending of rear, mainframe left side install in band reversible electric machine and the rotating shaft thereof, rolling coaxial driven gear, the pinch roller that is installed on the related pressing plate one side pressure wheel shaft of belt wheel and top thereof and form and send strap drive to pay, this related pressing plate is hingedly mounted on the mainframe by the fulcrum shaft of its opposite side, the other end of related pressing plate is a cantilever end, its upside is pressed with the pressure lever that the master cam that is subjected to install on the main machine shaft is controlled its displacement, in its downside mainframe shrinkage pool stage clip is housed.

The fulcrum shaft of related pressing plate both sides and wheel pressing shaft are not offset certain distance at same axis.

The automatic looping mechanism of above-mentioned strapping includes following each parts: the main motor and its master cam of upward installing that are installed in the mainframe front side, be installed in the high-speed electric expreess locomotive and the eccentrically weighted shaft that is installed in this high-speed electric expreess locomotive rotating shaft on mainframe right side, bulb, the shift fork of on its main shaft, installing, in the shrinkage pool unidirectional needle bearing is housed in the middle of this shift fork, the transmission that the ratchet and pawl of installing below the main shaft shift fork that is in open state is formed is paid, be installed in the extrusion spring on mainframe right side and be subjected to this extrusion spring effect and be close to the L type extrusion lever of master cam radial flange and be positioned at the extruding slide block of this lever upside, be positioned at the slide block top, be fixed on main shaft upper end and have the stone roller belt wheel of the netted line flank of tooth.

Above-mentioned strapping interface extruding, friction includes following each parts with adhesion mechanism: the main motor and its master cam of upward installing that are installed in the mainframe front side, be installed in the mainframe front side, be subjected to down the effect of cutter torsion spring and be close to cutter lever under the L type of master cam radial flange, be subjected to this time cutter lever control action, its end face has the following cutter of the sharp edge of a knife and the netted line flank of tooth, be positioned at mainframe and tie up upper slitter on the table top, and the high-speed electric expreess locomotive and the coaxial mounted eccentric shaft thereof that are installed in the mainframe right side, bulb, the shift fork of on the main shaft of mainframe center, installing, the unidirectional needle bearing of installing in the shrinkage pool in the middle of this shift fork, the ratchet of below the main shaft shift fork, installing that is in engagement, the transmission that ratchet is formed is paid.

The middle part of ratchet is provided with rotating shaft, is provided with a projection that can be subjected to the collision block control of master cam side and make ratchet and ratchet engaged or disengagement at the tail end of ratchet.

The left side of following cutter end face is provided with the edge of a knife, and its knife height should be lower than 0.5～0.8 millimeter of the netted line flank of tooth height of following cutter end face.

Characteristics of the present utility model are to utilize the different drive motor of parameter such as three power, rotating speed, constitute the unique automatic looping mechanism of tight belt-feeding mechanism, strapping and strapping extruding, friction and adhesion mechanism respectively, be aided with control circuit that single chip microcomputer constitutes again and finish the full automaticity of article and tie up process.The packing of article is tied up operation and all finished automatically by above-mentioned three ingenious, novel mechanical mechanisms of design, and is easy and simple to handle, effect is high, and because of not needing hot melt adhesive, the energy consumption reduction.Utilize high-speed friction between the plastic tape interface, extruding and make it bonding cold xtrusion envelope and prick mechanism's innovation of the present utility model especially, safe and reliable, can not produce pernicious gas and peculiar smell, environmentally safe, can improve the labor condition of relevant operating personal, be a kind of novel package machinery that popularizing application prospect is quite arranged.In addition, the utility model adopts single chip microcomputer and switch cam, master cam to control the operating sequence of whole device, wherein micro controller system by in its memory device to strapping loop diameter size, tie up the data setting of power size, can control sending band time, take-up time, thereby its strapping length sent and the size of tightening up of tying up power are adjusted selection, can be suitable for the enlacement packaging of various different article.

Fig. 1 is external form of the present utility model and work scheme drawing.

Fig. 2 is a driving system scheme drawing of the present utility model.

Fig. 3 is the tight belt-feeding mechanism after the utility model is pulled down main motor, master cam, the structural representation of wreathing mechanism of binding belt.

Fig. 4 is the structural representation that the utility model is analysed and observe from Fig. 3 a-a.

The structural representation of Fig. 5 strapping extruding, friction and adhesion mechanism that to be the utility model analyse and observe from Fig. 2 b-b.

Consult Fig. 1, Fig. 1 has showed external form of the present utility model and running condition working diagram.As long as operating personal will need the object 8 of enlacement packaging to send into forward in the circle of tying up the plastics zone circle 40 that is rolled into circle on the work top 94 through sending band automatically of casing 91, again to the left on the platen 95 by pasting (shown in arrow among the figure), extruding, friction and the control steps such as bonding and cut-out that the utility model is finished automatically tighten up plastic strapping tape, plastic bag interface, the whole operation process is rapid, easy, accomplishs without any letup.

Consult Fig. 2, this figure has showed that the utility model forms signal by the messenger chain that three different single-phase drive motor of parameter constitute plastic tape tight belt-feeding mechanism, wreathing mechanism of binding belt and strapping extruding, friction and adhesion mechanism respectively.Wherein belt conveying motor 2 is a reversible electric machine, and horsepower output 25W, rotating speed are 166 rev/mins; High-speed electric expreess locomotive 3 horsepower outputs reach 260W, and rotating speed is 10,000 rev/mins; Main motor 1 horsepower output 25W, rotating speed is 30 rev/mins.Main motor 1 is installed in to be paid on the frame 93, pays frame 93 and is packed on the mainframe 92.In the rotating shaft 10 of main motor 1, be coaxially installed with master cam 11 and switch cam 13, wherein rigidity master cam 11 is used for controlling above-mentioned each mechanism's machinery job procedure of part in addition, and the start and stop that sensing (fine motion) switch that switch cam 13 made of plastic is collided each relative position is when rotated controlled each motor rotation whether.4 is plastic strapping tapes among the figure, one end of pressure lever 27 is pressed in and connects pressing plate 26 upsides (referring to Fig. 3), the other end then is close to the wheel of master cam 11 on week, rotation with master cam 11 will make pressure lever press down related pressing plate 26, pinch roller 25 is moved down compress plastic strapping tape 4, tie up work, pressure spring 28 is used to make related pressing plate 26 to reset.Among the figure shown in the arrow for sending band direction, the 33rd, shift fork, the 7th, squeegee roller.The 111st, the collision block of master cam 1 end face is used for the at most tail end of ratchet 36, enters open state so that ratchet 36 breaks away from ratchet 35, makes wreathing mechanism of binding belt can move normal operation; In case this collision block 111 is the tail end of ratchet 36 no longer at most with master cam 11 rotation, ratchet 36 will be under the effect of retracing spring 37, mesh ratchet gear 35 and enter the engagement (referring to Fig. 4) that pawl ratchet is paid makes strapping extruding, friction and adhesion mechanism work.$ specifically introduces each mechanical work principle of the present utility model and operating process below in conjunction with Fig. 3, Fig. 4, Fig. 5.

Fig. 3 left hand view has mainly been showed the architectural feature of tight belt-feeding mechanism.Coaxial mounted driving gear 22 is an one with rolling belt wheel 23 riveteds in the rotating shaft 20 of sending taut band motor 2, on the coaxial wheel pressing shaft 261 that is installed in related pressing plate 26 front sides, the rear side of this pressing plate 26 is provided with fulcrum shaft 262, by this fulcrum shaft 262 related pressing plate 26 is hingedly mounted in the hole of mainframe 92 tops, and makes both circumferential peripheries that roll belt wheel 23 and pinch roller 25 have the gap of 0.1 millimeter.Even the wheel pressing shaft 261 of the fulcrum shaft 262 of pressing plate and its opposite side is not on same axis.The eccentric throw of having showed this diaxon among the figure.The other end of related pressing plate 26 is a cantilever end, its upside is pressed with pressure lever 27, the other end of this pressure lever 27 is close in main motor 1 rotating shaft 10 on the wheel rim of the master cam of installing 11, and is subjected to this cam-controlled and upper and lower displacement (referring to Fig. 2) is provided with stage clip 28 in the downside shrinkage pool of this cantilever end.

After sending the taut band electric motor starting, through the transmission of gear 22,24, make and roll belt wheel 23 dextrorotations then 25 left-hand revolutions of pinch roller of upside, take this strapping 4 guiding are ground belt wheel 7, prepare to carry out enlacement packaging.During taut band, belt conveying motor 2 backward rotation, pinch roller 25 is exerted pressure downwards, vertically pushes strapping.The generation of this pressure is by being contained in the bearing pin 29 in the top pressing board shrinkage pool on the stage clip 28 in the related pressing plate cantilever end shrinkage pool with adjusting, make related pressing plate 26 do hinged rotating shaft rotation with its fulcrum shaft 262, when this pressing plate 26 and pinch roller 25 form an eccentric lever transmission, make 25 pairs of pinch rollers roll belt wheel 23 and keep certain pressure.The fulcrum shaft 261 of the shape of the big I of this pressure by the residing master cam 11 of related pressing plate 26 other ends, pressing plate 26 and the eccentric throw of wheel pressing shaft 262 and the eccentrically weighted shaft 271 that is pressed in the pressure lever 27 of pressing plate 26 upsides are adjusted, necessary pressure when guaranteeing that strapping is sent into and tightened up.The feature that $ Fig. 3 right part of flg has mainly been showed wreathing mechanism of binding belt.This mechanism includes following each parts: main motor 1, high-speed electric expreess locomotive 3, be squeezed spring 31 effect and be close to the L type extrusion lever 38 of master cam 11 radial flange, be positioned at the extruding slide block 39 of these extrusion lever 38 other end upsides, be positioned at the stone roller belt wheel 7 that has netted line of extruding slide block 39 tops, and be installed in the middle of bulb 32 on high-speed electric expreess locomotive 3 eccentrically weighted shafts 30, shift fork 33, this shift fork and in shrinkage pool needle roller unilateral bearing 34 and main shaft 12 (referring to Fig. 4) be housed, and with main shaft 12 on the transmission formed of the ratchet that is in open state 35 installed and ratchet 36 pay.

When strapping 4 is delivered to stone roller belt wheel 7 positions, main motor 1 starts running, when the master cam 11 in its rotating shaft 10 rotates to low spot, extrusion spring 31 promotes L type extrusion lever 38 left, make this extrusion lever 38 around its supporting revolving shaft 381 clickwises, the extruding slide block 39 that the other end of this lever 38 just promotes its top moves up, and strapping 4 extruding are close on the netted line flank of tooth that grinds belt wheel 7.At this moment, master cam 1 continues rotation, answer back to the tail end of ratchet 36 by the collision block 111 (referring to Fig. 2) of its end face installation, make it to move right, thereby this ratchet 36 is rotated counterclockwise around its rotating shaft 361, ratchet 36 and ratchet 35 are thrown off, simultaneously, switch cam 13 will provide signal, start high-speed electric expreess locomotive 3 runnings.After 30 rotations of the eccentric shaft installed in high-speed electric expreess locomotive 3 rotating shafts, this bulb 32 of installing on 30 is stirred shift fork 33 and the unidirectional needle bearing 34 that is pressed on the shift fork 33 is made reciprocally swinging with driving.Because the internal diameter and the main shaft 12 of unidirectional needle bearing 34 are interference fit, when shift fork 33 was done the clockwise direction swing, main shaft 12 produced with unidirectional needle bearing 34 and slides, and main shaft 12 does not rotate; When shift fork 33 anticlockwise directions were swung, unidirectional needle bearing 34 will be held main shaft 12 tightly and drive main shaft 12 and be installed in ratchet 35 on the main shaft 12, grind belt wheel 7 angle of left-hand revolution (at this moment, ratchet 36 is in disengaged position with ratchet 35) together.Very fast, master cam 11 rotates to high point, promotes extrusion lever 38 to the right, drives extruding slide block 39 and moves down, and abdicates and send the band position, and plastic tape 4 can be entered between the upper slitter 6 that grinds belt wheel 7 and its downside.Simultaneously, bulb 32 is back and forth stirred shift fork 33 with the high speed of per second more than 160 time, makes to grind belt wheel 7 and drive strapping 7 left-hand revolutions by the friction force of its netted line flank of tooth; Because belt conveying motor 2 still send band in rotation, when stone roller belt wheel 7 rotates 360 °, strapping zone circle 40 rear portions of lopping are extruded on upper slitter 6 faying faces that grind belt wheel 7 left sides, take the lead then to deliver to the given position that grinds the belt wheel right side, and the strapping 4 of coming with conveying is overlapping, finish whole operations of strapping lopping, at this moment, the tail end of ratchet 36 has broken away from the end face collision block 111 of cam 11, under the effect of retracing spring 37, ratchet 36 mesh ratchet gears 35 make ratchet 35 this moment can not left-hand revolution.The 121st, with the attachment pegs of ratchet 35 with main shaft 12 fastening one.

Fig. 5 has showed the structure of strapping extruding, friction and adhesion mechanism.This mechanism includes following parts: main motor 1, high-speed electric expreess locomotive 3, be subjected to down cutter stage clip 52 effect and be close to cutter lever 51 under the L type of master cam 11 radial flange, its end face has the following cutter 5 of the sharp edge of a knife and netted line, be positioned at the upper slitter of tying up on the table top 94 6, and being installed in bulb 32, shift fork 33 on high-speed electric expreess locomotive 3 eccentrically weighted shafts 30, the ratchet of installing on needle roller unilateral bearing 34, main shaft 12 and the main shaft of installing in the shrinkage pool in the middle of shift fork that is in engagement 35 is paid with the transmission that ratchet 36 is formed.$ is after strapping 4 tightens up lopping, and main motor 1 starts, and drives master cam 11, switch cam 13 rotations, and master cam 11 will promote down cutter lever 51 when rotating, and make down and move (referring to Fig. 5) on the cutter 5.When moving on the following cutter 5, switch cam 13 also provides signal, makes high-speed electric expreess locomotive 3 start running (referring to Fig. 4).Shift fork 33 joins together with ratchet by the ratchet rotating shaft 361 of one end.Because eccentric shaft 30 high speed revolutions make its bulb 32 stir shift fork 33 high speed reciprocally swingings.When bulb 32 is stirred shift fork and rotated counterclockwise, will lock main shaft 12 with the unidirectional needle bearing 34 that shift fork 33 joins together, and drive ratchet 36, ratchet 35, main shaft 12, grind belt wheel 7 angle of left-hand revolutions simultaneously.And when bulb 32 cws are stirred shift fork 33 swings, because of ratchet 36 and ratchet 35 are that state is blocked in engagement, withstand ratchet by ratchet and drive the main shaft 12 stone roller belt wheels 7 same angle of clickwise again.

Because bulb 32 is stirred shift fork 33 at a high speed with the reciprocating swing speed of per second more than 160 time, main shaft 12 will make and grind also high speed reciprocally swinging of belt wheel.The moment of moving on following cutter 5 has been squeezed in two-layer strapping 4 up and down grinds belt wheel 7 and down between the netted line flank of tooth of the edge of a knife 5, just drive also high speed reciprocally swinging of a strapping 4 on upper strata, place owing to grind the high speed reciprocally swinging of belt wheel 7, make and produce the moment high-speed friction between the upper and lower two-layer strapping, and reach its bonding best preference temperature mutually, make the overlapping interface of this strapping bonded to each other.Approximately after 0.1 second, the left side edge of a knife (than low 0.5～0.8 millimeter of its reticulate pattern face tooth) by following cutter 5 rises and the magnetic tape trailer end-grain cutting of going into of strapping is broken again, at this moment, just master cam 11 rotates to its nadir, reset by descending cutter 5 to move down, finish whole extruding, friction, bonding and cut-out action, and the article enlacement packaging is finished.

The utility model is exactly as mentioned above, send band, strapping lopping, taut band, extruding, friction, bonding and cut-out action again and again, and all operations are finished automatically, and rapid, convenient, safety do not have peculiar smell and pernicious gas dissipation.The size of strapping lopping and tie up power and all can adjust, and by micro controller system storage memory.

The utility model has been developed model machine, implements through BJ Banknote Printing Plant, the test of Beijing postal service central office, generally believes that this device is easy to use, improve work efficiency, and is functional, can improve work situation, reduces labor intensity, and user's favorable comment deeply is put to the test.

Claims (7)

1. squash type plastic tape full automaticity strapper, include: casing, frame, motor, gear, cam, pawl ratchet are paid and by the control circuit that single chip microcomputer constitutes, be it is characterized in that: this device is equipped with tight belt-feeding mechanism, wreathing mechanism of binding belt and strapping extruding, friction and the adhesion mechanism of the plastic tape that the single-phase drive motor by three different capacities, rotating speed constitutes respectively; On its main machine shaft, be coaxially installed with rigidity master cam and each motor rotation start and stop of the control whether plastic switch cam of controlling each mechanism's mechanical component job procedure respectively.

2. squash type plastic tape full automaticity strapper as claimed in claim 1, it is characterized in that: above-mentioned tight belt-feeding mechanism is by the driving gear of installing in band reversible electric machine and the rotating shaft thereof that send that is installed in rear, mainframe left side, roll the coaxial driven gear that is installed on the related pressing plate one side pressure wheel shaft in belt wheel and top thereof, the pinch roller composition send strap drive to pay, this related pressing plate is hingedly mounted on the mainframe by the fulcrum shaft of its opposite side, the other end of related pressing plate is a cantilever end, its upside is pressed with the pressure lever that the master cam that is subjected to install on the main machine shaft is controlled its displacement, in its downside mainframe shrinkage pool stage clip is housed.

3. squash type plastic tape full automaticity strapper as claimed in claim 1 or 2, it is characterized in that: the fulcrum shaft of related pressing plate both sides and wheel pressing shaft are not offset certain distance at same axis.

4. squash type plastic tape full automaticity strapper as claimed in claim 1, it is characterized in that: the automatic looping mechanism of strapping includes following each parts: the main motor and its master cam of upward installing that are installed in the mainframe front side, be installed in the high-speed electric expreess locomotive and the eccentrically weighted shaft that is installed in this high-speed electric expreess locomotive rotating shaft on mainframe right side, bulb, the shift fork of on its main shaft, installing, in the shrinkage pool unidirectional needle bearing is housed in the middle of this shift fork, the transmission that the ratchet and pawl of installing below the main shaft shift fork that is in open state is formed is paid, be installed in the extrusion spring on mainframe right side and be subjected to this extrusion spring effect and be close to the L type extrusion lever of master cam radial flange and be positioned at the extruding slide block of this lever upside, be positioned at the slide block top, be fixed on main shaft upper end and have the stone roller belt wheel of the netted line flank of tooth.

5. squash type plastic tape full automaticity strapper as claimed in claim 1, it is characterized in that: the extruding of strapping interface, friction includes following each parts with adhesion mechanism: the main motor and its master cam of upward installing that are installed in the mainframe front side, be installed in the mainframe front side, be subjected to down the effect of cutter torsion spring and be close to cutter lever under the L type of master cam radial flange, be subjected to this time cutter lever control action, its end face has the following cutter of the sharp edge of a knife and the netted line flank of tooth, be positioned at mainframe and tie up upper slitter on the table top, and the high-speed electric expreess locomotive and the coaxial mounted eccentric shaft thereof that are installed in the mainframe right side, bulb, the shift fork of on the main shaft of mainframe center, installing, the unidirectional needle bearing of installing in the shrinkage pool in the middle of this shift fork, the ratchet of below the main shaft shift fork, installing that is in engagement, the transmission that ratchet is formed is paid.

6. as claim 1 or 4 or 5 described squash type plastic tape full automaticity strappers, it is characterized in that: the middle part of ratchet is provided with rotating shaft, is provided with a projection that can be subjected to the collision block control of master cam side and make ratchet and ratchet engaged or disengagement at the tail end of ratchet.

7. as claim 1 or 5 described squash type plastic tape full automaticity strappers, it is characterized in that: the left side of following cutter end face is provided with the edge of a knife, and its knife height should be lower than 0.5～0.8 millimeter of the netted line flank of tooth height of following cutter end face.

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