CN110481864A - A kind of reciprocal pusher with power-off protection mechanism - Google Patents
A kind of reciprocal pusher with power-off protection mechanism Download PDFInfo
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- CN110481864A CN110481864A CN201910851545.6A CN201910851545A CN110481864A CN 110481864 A CN110481864 A CN 110481864A CN 201910851545 A CN201910851545 A CN 201910851545A CN 110481864 A CN110481864 A CN 110481864A
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- connecting plate
- pusher
- sliding
- latch fitting
- power
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 16
- 238000012856 packing Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005007 materials handling Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
- B65B35/10—Feeding, e.g. conveying, single articles
- B65B35/20—Feeding, e.g. conveying, single articles by reciprocating or oscillatory pushers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
- B65B35/30—Arranging and feeding articles in groups
- B65B35/40—Arranging and feeding articles in groups by reciprocating or oscillatory pushers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B57/00—Automatic control, checking, warning, or safety devices
- B65B57/18—Automatic control, checking, warning, or safety devices causing operation of audible or visible alarm signals
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of reciprocal pusher with power-off protection mechanism, the driving mechanism moved back and forth including pusher pawl and the driving pusher pawl;The pusher pawl includes fixed plate, connecting plate, pin shaft, featured block for pusher, limited block, power-off protection mechanism and latch fitting, wherein pin shaft is connect with fixed plate, connecting plate is flexibly connected with pin shaft, limited block is fixed in fixed plate, latch fitting is fixed on limited block and connect with connecting plate, with by connecting plate with respect to pin shaft locking, power-off protection mechanism is arranged on connecting plate, when releasing the locking to connecting plate in latch fitting, control driving mechanism stops working, through the above way, driving mechanism is automatically controlled when can get stuck during pusher to stop working.
Description
Technical field
The present invention relates to materials-handling technology fields, more particularly to a kind of reciprocal pusher with power-off protection mechanism.
Background technique
Pusher is the pushing component in the equipment such as box packing machine, packing machine, mainly by moving back and forth pusher pawl
It realizes pusher, material is pushed into packing box.The pusher of the prior art gets stuck, i.e. pusher during pusher
Pawl is pushed away material and is blocked when can not move on to push material, and the driving mechanism of pusher is still working, and leads to pusher
Pawl is constantly in the state advanced by driving, and pusher pawl and material is thus easy to cause to damage.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of reciprocal pushers with power-off protection mechanism, can push away
Driving mechanism is automatically controlled when getting stuck during material to stop working, and is conducive to protect pusher pawl and material.
The embodiment of the present invention mainly provides a kind of reciprocal pusher with power-off protection mechanism, including pusher pawl and driving
The driving mechanism that the pusher pawl moves back and forth;
The pusher pawl includes fixed plate, connecting plate, pin shaft, featured block, limited block, power-off protection machine for pusher
Structure and latch fitting;
The fixed plate is connect with the connecting plate through the pin hinge, and the featured block is fixed on the connecting plate
On;The limited block is fixed in the fixed plate, and the latch fitting is fixed on the limited block and connects with the connecting plate
It connects, by the connecting plate with respect to pin shaft locking, wherein being subject to during the pusher of the featured block when the featured block
When resistance is greater than the latch fitting to the lock power of connecting plate, the latch fitting releases the locking to the connecting plate, the connecting plate around
The pin shaft rotation, the power-off protection mechanism setting is connect on the connecting plate, and with the driving mechanism, described
Latch fitting controls the driving mechanism when releasing the locking to the connecting plate and stops working.
Wherein, the latch fitting is magnet, the magnet and the connecting plate magnetic connection, lock of the latch fitting to connecting plate
Power is magnetic force of the magnet to the connecting plate.
Wherein, the latch fitting is spring, and one end of the spring is fixed in the limited block or fixed plate, the other end
It is fixed on the connecting plate, and elastic force is generated to the connecting plate, the latch fitting is the spring pair to the lock power of connecting plate
The elastic force of the connecting plate.
Wherein, the power-off protection mechanism includes microswitch and controller, and the microswitch and the controller connect
It connects, the controller is connect with the driving mechanism, and the microswitch includes Switch main body, contact and pressing tablet, described
Contact is arranged on the Switch main body, and one end of the elastic contact blade is connect with the Switch main body, the elastic contact blade
The other end is free end;
In latch fitting pin shaft locking that the connecting plate is opposite, the free end of the elastic contact blade and the limited block
Inconsistent, so that the elastic contact blade presses the contact, the microswitch conducting, the controller is according to the fine motion
The Continuity signal of switch controls the driving mechanism work;When the connecting plate is rotated around the pin shaft, the elastic contact blade
With the contact separation, so that the microswitch disconnects, the controller is according to the cut-off signal of the microswitch
The driving mechanism is controlled to stop working.
Wherein, the power-off protection mechanism further includes alarm, and the alarm is connect with the controller, the control
Device controls control alarm according to the cut-off signal of the microswitch and sounds an alarm.
It wherein, further include pedestal and the sliding shaft base on the pedestal, guiding shaft;
It is provided with sliding rail on the pedestal, sliding part is provided on the sliding rail, the driving mechanism includes motor, swings
Part, drive sprocket, by movable sprocket and with the drive sprocket and by movable sprocket be sequentially connected synchronization chain, the motor
It is connect with the drive sprocket;
Pilot hole is provided in the fixed plate, one end of the sliding shaft base is connect with the sliding part, the cunning
The other end of moving axis seat is provided with axis hole, and the guiding shaft includes guide part interconnected and rotation section, the rotation section
For circular shaft, the guide part is the section axis of splined shaft, polyhedron axis or arc surface and plane combination, the one of the rotation section
End is fixedly connected with one end of the swing component, axis hole on the sliding shaft base of the other end of the rotation section and with institute
One end connection of guide part is stated, the other end of the guide part passes through the pilot hole in the fixed plate, the swing component
The other end is connected on the synchronization chain to move with the synchronization chain, and then the pusher pawl is driven to move back and forth.
Wherein, the sliding part is linear bearing, and the sliding rail is guide rod, and the linear bearing is sheathed on the guide rod
To be slided along the guide rod;Alternatively, the sliding part is dovetail groove sliding block, the sliding rail is dovetail groove guide rail, the dovetail groove
Sliding block is inserted in the dovetail groove guide rail to slide along the dovetail groove guide rail.
It wherein, further include oil-containing groove, the oil-containing groove is arranged on the pedestal, and is located at the drive sprocket and passive chain
The lower section of wheel.
Wherein, the pusher pawl further includes secondary pushing block, and the pair pushing block is connect with the featured block.
In reciprocal pusher of the invention, pusher pawl includes fixed plate, connecting plate, pin shaft and the master for pusher
It is solid to promote mainly block through pin shaft composition hinge connection for pushing block, limited block, power-off protection mechanism and latch fitting, fixed plate and connecting plate
It is scheduled on connecting plate, limited block is fixed in fixed plate, and latch fitting is fixed on limited block and connect with connecting plate, will be connected
Plate is connect on connecting plate, and with driving mechanism with respect to pin shaft locking, the setting of power-off protection mechanism, in the pusher process of featured block
In, when getting stuck, block is promoted mainly by certain resistance, when the resistance is greater than lock power of the latch fitting to connecting plate, latch fitting solution
Except the locking to connecting plate, connecting plate is rotated around pin shaft, so that power-off protection mechanism is when latch fitting releases the locking to connecting plate
Control driving mechanism stops working, therefore by this programme, automatically controls driving machine when can get stuck during pusher
Structure stops working, and is conducive to protect pusher pawl and material.
Detailed description of the invention
Fig. 1 is reciprocal pusher one structural schematic diagram provided in an embodiment of the present invention with power-off protection mechanism;
Fig. 2 is the view that reciprocal pusher shown in FIG. 1 is observed in the direction CD;
Fig. 3 is the view that reciprocal pusher shown in FIG. 1 is observed in the direction EF;
Fig. 4 is a structural schematic diagram of pusher pawl in reciprocal pusher shown in FIG. 1;
Fig. 5 is the view that pusher pawl shown in Fig. 4 is observed in the direction MN.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment belongs to the scope of protection of the invention.
Reciprocal pusher with power-off protection mechanism of the invention, can be applied to box packing machine, packing machine or sack filling machine etc.
In equipment, to be used for feeding as the pushing component in these equipment.
Refering to fig. 1, in one embodiment of the invention, the reciprocal pusher with power-off protection mechanism includes pedestal 11, sliding axle
Seat 12, driving mechanism, guiding shaft 14 and pusher pawl 15.Wherein, sliding shaft base 12, driving mechanism, guiding shaft 14 and
Pusher pawl 15 is respectively positioned on pedestal 11.
Further, sliding rail 111 is provided on pedestal 11.By taking view shown in FIG. 1 as an example, sliding rail 111 is horizontal slide rail,
And its quantity can be one and be also possible to a plurality of, such as in the present embodiment, the quantity of sliding rail 111 is two, and two sliding rails 111 are flat
Row setting.The sliding part 112 slided along sliding rail 111 is provided on every sliding rail 111.
Fit system between sliding rail 111 and sliding rack 112 can there are many.In some embodiments, sliding rail 111 can
Think linear guide, sliding part 112 is and the matched sliding block of linear guide.In other embodiments, sliding rail 111 can be
Guide rod, and sliding part 112 can be linear bearing, which is sheathed on guide rod to slide along guide rod;Or sliding rail
111 can also be dovetail groove guide rail, have a dovetail groove on the dovetail groove guide rail, and the correspondence of sliding part 112 can be dovetail groove
Sliding block, the dovetail groove sliding block are inserted in the dovetail groove that dovetail groove is led to slide along dovetail groove guide rail.
In conjunction with Fig. 2, driving mechanism include motor 131, swing component 132, drive sprocket 133, by movable sprocket 134 and synchronous
Chain 135.Synchronization chain 135 is sequentially connected with drive sprocket 133 and by movable sprocket 134, thus when drive sprocket 133 rotates
When, it can be driven by synchronization chain 135 and be rotated by movable sprocket 134.Motor 131 is fixed on the base 11, and and drive sprocket
133 are directly connected to, or are connected by machine driving.
For example, driving mechanism can also include when motor 131 and drive sprocket 133 are mechanically sequentially connected
It is drivingly connected component, motor 131 is realized by the drive connection component and drive sprocket 133 and connected.Specifically, the drive connection
Component includes the first drive sprocket 136, the second drive sprocket 137 and drive chain 138.Second drive sprocket 137 and active
Sprocket wheel 133 is coaxially connected, the output axis connection of the first drive sprocket 136 and motor 131, drive chain 138 and the first drive chain
Wheel 136 and the second drive sprocket 137 are sequentially connected, as a result, when motor 131 works, by driving 136 turns of the first drive sprocket
It is dynamic, to drive the rotation of the second drive sprocket 137 by drive chain 138, and then drive sprocket 133 is driven to rotate, and actively
Sprocket wheel 133 then drives passive sprocket wheel 134 to rotate by the effect of synchronization chain 135.
Further, which can also include a tensioning wheel 139, which is mounted on pedestal 11
Outside that is upper and being located at drive chain 138, and contradicted with drive chain 138.Wherein, the position of tensioning wheel 139 on the base 11
Set it is adjustable, to adjust the elasticity of drive chain 138.
Wherein, reciprocal material-pulling device can also include oil-containing groove 16, and oil-containing groove 16 is arranged on the base 11, and is located at actively
Sprocket wheel 133 and by the lower section of movable sprocket 134, the machine that can be used for collecting drive sprocket 133, dripped by components such as movable sprockets 134
Oil.
With continued reference to Fig. 1, sliding shaft base 12 can be strip axle bed, and one end is connect with sliding part 112, on the other end
It is provided with axis hole 121.Wherein, sliding shaft base 12 and sliding part 112 can be integrated molding, and it is molding to be also possible to two independences
Component.
In conjunction with Fig. 3 and Fig. 4, it should be noted that for the ease of illustrating the structure of guiding shaft 14, in the view of Fig. 3
It is only the part-structure for illustrating reciprocal pusher, the structures such as sliding shaft base 12 and part base 11 are simultaneously not illustrated in FIG. 3
Out.One end of guiding shaft 14 is fixedly connected with one end of swing component 132, such as can be by being spirally connected or the mode of welding is realized
It is fixedly connected, the other end of guiding shaft 14 passes through the axis hole 121 on sliding shaft base 12 and connect with pusher pawl 15.Swing component
132 other end is connected on synchronization chain 135 to move with synchronization chain 135.Wherein, driving mechanism can also include an axis
1301 and a connecting shaft 1302 are held, the other end of swing component 132 passes through the bearing 1301 and connecting shaft 1302 and synchronization chain 135
Connection.Specifically, one end of connecting shaft 1302 is connect with synchronization chain 135, and the other end and bearing 1301 of connecting shaft 1302 connect
It connects, and the other end of swing component 132 is then mounted on bearing 1301.
As shown in figure 4, pusher pawl 15 includes fixed plate 151, connecting plate 152, pin shaft 153 and promoting mainly for pusher
Block 154.Pilot hole 1511 is provided on one end of fixed plate 151, pusher pawl 15 passes through pilot hole 1511 and guiding shaft
14 connections, the i.e. other end of guiding shaft 14 pass through axis hole 121 and then pass through pilot hole 1511, are achieved in pusher pawl 15
With the connection of guiding shaft 14.
Further, as shown in figure 3, guiding shaft 14 includes being connected with each other guide part 141 and rotation section 142.Rotation section
142 be circular shaft, and one end is fixed together with swing component 132, the other end pass through sliding shaft base 12 on axis hole 121 and with
One end of guide part 141 is fixedly connected.Wherein it is possible to which the bearing 122 to match with rotation section 142 is arranged in axis hole 121, turn
Dynamic portion 142 passes through bearing 122 and connect with one end of guide part 141.The other end of guide part 141 passes through in fixed plate 151
Pilot hole 1511 and realize connect with pusher pawl 15.By the effect of guide part 141, can prevent fixed plate 151 around
Guide part 141 rotates.Wherein, as shown, guide part 141 can be the section axis that arc surface is combined with facet, pilot hole
1511 be pilot hole compatible with the section axis, i.e. the cross sectional shape phase of the cross sectional shape of pilot hole 1511 and guide part 141
Together, from there through the facet on the axis of section, position-limiting action can be played to fixed plate 151, with prevent fixed plate 151 around
Guide part 141 rotates.
In other embodiments, guide part 141 can also be splined shaft or polyhedron axis, and pilot hole 1511 then corresponds to
Splined hole or Polyhedral hole, to realize the limit to fixed plate 151.Or guide part 141 can also be arc surface and lead
To the guiding axis of key combination.It is understood that passing through the cooperation of guide part 141 and pilot hole 1511, fixing axle can be made
Seat 15 is relatively fixed with guide part 141, that is, fixed plate 15 will not be rotated around guide part 141, and when guide part 141 is sent out
When raw rotation, fixed plate 15 can be rotated together with guide part 141.
Wherein, the quantity of pusher pawl 15 can be configured according to actual needs, such as can be arranged one on guide part 141
A, two or more pusher pawls 15, are not specifically limited in this embodiment.
With continued reference to Fig. 4, featured block 154 is fixed on connecting plate 152.Fixed plate 151 and connecting plate 152 are through pin shaft
153 groups are in the hinge connection.
Wherein, pusher pawl 15 further includes limited block 155, power-off protection mechanism 156, latch fitting 157 and secondary pushing block 158.It is secondary
Pushing block 158 is connect with featured block 154, to carry out pusher operation jointly with featured block 154.Wherein it is possible to according to pushed away material
Difference selects different secondary pushing blocks 158 to be combined with featured block 154, is conducive to the applicable model for expanding reciprocal material-pulling device
It encloses.It is of course also possible to which pair is selectively installed or not installed on featured block 154 according to the difference of material or actual needs
Pushing block 158.
Limited block 155 is fixed in fixed plate 151, and latch fitting 157 is fixed on limited block 155, and with connecting plate 152
Connection, by connecting plate 152 with respect to 153 locking of pin shaft, i.e. latch fitting 157 is used for connecting plate 152 is fixed with respect to pin shaft 153.Its
In, at least part and the connecting plate 152 of limited block 155 are setting face-to-face, so as to be arranged latch fitting 157 in limited block
155 on the part of connecting plate 152, and limited block 155 for connecting plate 152 its be located at pushing away for pusher pawl 15
Expect the side in direction.In some embodiments, latch fitting 157 can be magnet, and connecting plate 152 is iron or other metal material systems
At so that latch fitting 157 is linked with 152 magnetic force of connecting plate, latch fitting 157 is magnet to connecting plate 152 to the lock power of connecting plate 152
Magnetic force.Allow connecting plate 152 fixed with respect to pin shaft 153 suction-operated of connecting plate 152 by magnet.
In other embodiments, latch fitting 157 can also be electromagnet or spring.When latch fitting 157 is spring, the bullet
One end of spring can be fixed on fixed plate 151 or limited block 155, and the other end is fixed on connecting plate 152, and to connection
Plate 152 generates elastic force, so that connecting plate 152 is fixed with respect to pin shaft 153.Wherein, latch fitting 157 is to the lock power of connecting plate 152
Elastic force of the spring to connecting plate 152.
Wherein, power-off protection mechanism setting is connect on connecting plate 152, and with motor 131, in the releasing pair of latch fitting 157
Motor 131 is controlled when the locking of connecting plate 152 to stop working.
In one implementation, as shown in Figure 4 and Figure 5, power-off protection mechanism may include microswitch 156 and control
Device (not shown), the microswitch 156 are connect with controller, and controller is connect with motor 131, according to microswitch 156
Whether being turned on or off to control the work of motor 131.
Specifically, microswitch 156 includes Switch main body 1561, contact 1562 and elastic contact blade 1563.Contact 1562
Be arranged on Switch main body 1561, one end of elastic contact blade 1563 is connect with Switch main body 1561, elastic contact blade 1563 it is another
End is free end.Wherein, in 153 locking of pin shaft that connecting plate 152 is opposite of latch fitting 157, the free end of elastic contact blade 1563 is straight
It connects or is supported on limited block 155 indirectly.For contradicting indirectly, pusher pawl 15 can also include screw rod 159, in limited block
Screw hole is additionally provided on 155, screw rod 159 is spirally connected with the screw hole on limited block 155, and pass through limited block 155 on screw hole and
It is connect with the free end of elastic contact blade 1563.
When 153 locking of pin shaft that connecting plate 152 is opposite of latch fitting 157, elastic contact blade 1563 is supported with 159 phase of screw rod, from
And make 1563 push contact 1562 of elastic contact blade, so that microswitch 156 is in the conductive state, controller is according to micro- at this time
The Continuity signal control motor 131 of dynamic switch 156 works normally.When latch fitting 157 releases the locking to connecting plate 152, connecting plate
152 rotate around pin shaft 153, and elastic contact blade 1563 is no longer by screw rod 159 by pressing against at this time, so that elastic contact blade 1563 and contact
1562 separation, thus microswitch 156 disconnects, and stops so that controller controls motor 131 according to the cut-off signal of microswitch 156
Only work.
Wherein, controller can obtain the conducting of microswitch 156 by the voltage signal on detection microswitch 156
Or cut-off signal, such as when controller detects that the voltage signal on microswitch 156 is zero or lower than microswitch 156
Operating voltage then obtains the cut-off signal of microswitch 156;When controller detects that the voltage signal on microswitch 156 is
In the normal fluctuation range of the operating voltage of microswitch 156 or the operating voltage in microswitch 156, then obtains fine motion and open
Close 156 Continuity signal.
Optionally, power-off protection mechanism can also include alarm (not shown), which can be with combined aural and visual alarm.It should
Alarm is connect with controller, and controller controls alarm according to the cut-off signal of microswitch 156 and sounds an alarm.
The working principle of the reciprocal pusher to the present embodiment is illustrated below.
In the present embodiment, when motor 131 drives drive sprocket 133 to rotate, synchronization chain 135 is also rotated with it, thus
Swing component 132 is moved with synchronization chain 135, wherein direct with drive sprocket 133 and by movable sprocket 134 in synchronization chain 135
The left and right ends of contact are semicircular arc, and are vertical bar shaped in drive sprocket 133 and by the part between movable sprocket 134.Work as pendulum
When moving part 132 moves to the left and right ends of synchronization chain 135 with synchronization chain 135, swing component 132 is around drive sprocket 133
Or half circular motion is done by movable sprocket 134, it is possible thereby to rotate swing component 132 with action-oriented shaft 14, and it is oriented to shaft
Pusher pawl 15 is rotated together also with guiding shaft 14 when 14 rotation, so may be implemented pusher pawl 15 forward swing by a small margin or after
Pendulum;And when swing component 132 with synchronization chain 135 in drive sprocket 133 and when being moved between movable sprocket 134, swing component 132 is done
Linear motion, it is possible thereby to which sliding shaft base 12 is driven to do linear reciprocating motion along sliding rail 111, and then may be implemented pusher pawl 15
Reciprocating motion, i.e., realization pusher pawl 15 move forward or back, it is possible thereby to realize the pusher operation of pusher pawl 15.Therefore pass through this
Product (or material) can be pushed in next production link by embodiment automatically, greatly improve production efficiency, reduce manually at
This, is conducive to automated production, and by rotating using motor driven synchronization chain, to drive pusher pawl to move reciprocatingly,
It can be improved pushing efficiency and stability, and by adjusting the i.e. adjustable pushing speed of motor speed, it is convenient and accurate.
For example, reciprocal pusher of the invention can be applied in box packing machine, by driving the reciprocal pusher reciprocal
Movement, product can be pushed into packing box automatically, be placed into packing box without manually removing product.
Wherein, by the microswitch 156 of power-off protection mechanism, stop in time when can get stuck during pusher
Machine, to be conducive to protect pusher pawl 15 and pushed away product or material.Specifically, as shown in Figure 1 and Figure 4, the direction AB is in Fig. 1
The pusher direction of pusher pawl 15, i.e., when pusher pawl 15 advances along the direction AB, pusher pawl 15 carries out pusher.In normal state,
Connecting plate 152 is adsorbed by latch fitting 157, so that connecting plate 152 is stationary state relative to pin shaft 153, fine motion is opened at this time
The free end for closing 156 elastic contact blade 1563 is supported with 159 phase of screw rod, so that 1563 push contact 1562 of elastic contact blade, at this time
The closure conducting of microswitch 156, controller control motor 131 according to the Continuity signal of microswitch 156 and work normally.
During motor 131 drives pusher pawl 15 to carry out pusher along the direction AB, when getting stuck, i.e. 15 quilt of pusher pawl
The material pushed away is blocked when can not move on to push material, and pusher pawl 15 is by certain resistance, not with motor 131
The resistance that disconnected work pusher pawl 15 is subject to is also bigger, when the resistance that pusher pawl 15 is subject to is greater than latch fitting 157 to the lock of connecting plate 152
When power, latch fitting 157 releases the locking to connecting plate 152, so that connecting plate 152 is around 153 direction of pin shaft under the action of resistance
The opposite direction (i.e. the direction BA) in pusher direction rotates.And with the rotation of connecting plate 152, between connecting plate 152 and limited block 155
Distance become larger, the free end of elastic contact blade 1563 will no longer be pressed by screw rod 159 or be hauled by screw rod 159 so that
Elastic contact blade 1563 is separated with contact 1562, and microswitch 156 disconnects, so that controller is believed according to the disconnection of microswitch 156
Number control motor 131 stops working, and is thus conducive to protect pusher pawl 15 and material, pusher pawl 15 and object when preventing to get stuck
Stream is damaged.
In addition, controller controls alarm also according to the cut-off signal of microswitch 156 when microswitch 156 disconnects
It sounds an alarm.
In other embodiments of the invention, microswitch can also be replaced using other switches or sensor,
The replacement such as groove profile switch, optoelectronic switch, capacitance sensor or infrared distance sensor can be used for example, in card
Motor is controlled by controller when material to stop working.
For example, power-off protection mechanism may include an infrared distance sensor and control by taking infrared distance sensor as an example
Device, which can be set on limited block or connecting plate, for obtaining between limited block and connecting plate
Range data.Controller is connect with infrared distance sensor, is driven with the range data control obtained according to infrared distance sensor
The motor of motivation structure works or stops working.
Specifically, controller receives range data acquired in infrared distance sensor in real time.Assuming that 152 phase of connecting plate
The distance between limited block 155 and connecting plate 152 value are first threshold when being stationary state for pin shaft 153, in a kind of implementation
In mode, whether the acquired range data of controller judgement is changed compared with first threshold, if changing, really
Lock part 157 releases the locking to connecting plate 152, if not changing, illustrates that connecting plate 152 is still with respect to pin shaft 153
Locking.Alternatively, in another embodiment, controller also may determine that whether acquired range data is greater than the first threshold
Value, if so, determining that latch fitting 157 relieves the locking to connecting plate 152.
When controller determines that latch fitting 157 is released to the locking of connecting plate 152, illustrate that connecting plate 152 is rotated, i.e., around
Pin shaft 153 rotate, while also illustrating that pusher pawl 15 receives biggish resistance, got stuck, therefore controller control report
Alert device sounds an alarm, and controls motor 131 and stop working, to be conducive to protect pusher pawl 15 and pushed away material.Work as control
Device determines that latch fitting 157 still carries out locking to connecting plate 152, then controls the normal work of motor 131.
It is understood that the driving mechanism of the embodiment of the present invention, which can also be using other driving methods, realizes pusher
The reciprocating motion of pawl, such as the reciprocating motion of pusher pawl can be realized using straight line cylinder.
The above is only embodiments of the present invention, are not intended to limit the scope of the invention, all to utilize the present invention
Equivalent structure or equivalent flow shift made by specification and accompanying drawing content is applied directly or indirectly in other relevant technologies
Field is included within the scope of the present invention.
Claims (9)
1. a kind of reciprocal pusher with power-off protection mechanism, which is characterized in that including pusher pawl and the driving pusher pawl
The driving mechanism of reciprocating motion;
The pusher pawl include fixed plate, connecting plate, pin shaft, for pusher featured block, limited block, power-off protection mechanism with
And latch fitting;
The fixed plate is connect with the connecting plate through the pin hinge, and the featured block is fixed on the connecting plate;
The limited block is fixed in the fixed plate, and the latch fitting is fixed on the limited block and connect with the connecting plate,
With by the connecting plate with respect to pin shaft locking, wherein during the pusher of the featured block, when the resistance that the featured block is subject to
When power is greater than lock power of the latch fitting to connecting plate, the latch fitting releases the locking to the connecting plate, and the connecting plate is around institute
Pin shaft rotation is stated, the power-off protection mechanism setting is connect on the connecting plate, and with the driving mechanism, in the lock
Part controls the driving mechanism when releasing the locking to the connecting plate and stops working.
2. reciprocal pusher according to claim 1, which is characterized in that the latch fitting be magnet, the magnet with it is described
Connecting plate magnetic connection, the latch fitting are magnetic force of the magnet to the connecting plate to the lock power of connecting plate.
3. reciprocal pusher according to claim 1, which is characterized in that the latch fitting is spring, one end of the spring
It being fixed in the limited block or fixed plate, the other end is fixed on the connecting plate, and generates elastic force to the connecting plate,
The latch fitting is elastic force of the spring to the connecting plate to the lock power of connecting plate.
4. reciprocal pusher according to claim 1, which is characterized in that the power-off protection mechanism include microswitch and
Controller, the microswitch are connect with the controller, and the controller is connect with the driving mechanism, the microswitch
Including Switch main body, contact and pressing tablet, the contact is arranged on the Switch main body, one end of the elastic contact blade with
The Switch main body connection, the other end of the elastic contact blade are free end;
In latch fitting pin shaft locking that the connecting plate is opposite, the free end of the elastic contact blade offsets with the limited block
Touching, so that the elastic contact blade presses the contact, the microswitch conducting, the controller is according to the microswitch
Continuity signal control driving mechanism work;When the connecting plate is rotated around the pin shaft, the elastic contact blade and institute
Contact separation is stated, so that the microswitch disconnects, the controller is controlled according to the cut-off signal of the microswitch
The driving mechanism stops working.
5. reciprocal pusher according to claim 4, which is characterized in that the power-off protection mechanism further includes alarm,
The alarm is connect with the controller, and the controller controls control alarm according to the cut-off signal of the microswitch
It sounds an alarm.
6. reciprocal pusher according to claim 1, which is characterized in that further include pedestal and on the pedestal
Sliding shaft base, guiding shaft;
Be provided with sliding rail on the pedestal, be provided with sliding part on the sliding rail, the driving mechanism include motor, swing component,
Drive sprocket, by movable sprocket and with the drive sprocket and the synchronization chain being sequentially connected by movable sprocket, the motor and institute
State drive sprocket connection;
Pilot hole is provided in the fixed plate, one end of the sliding shaft base is connect with the sliding part, the sliding axle
The other end of seat is provided with axis hole, and the guiding shaft includes guide part interconnected and rotation section, and the rotation section is circle
Axis, the guide part be splined shaft, polyhedron axis or arc surface and plane combination section axis, one end of the rotation section with
One end of the swing component is fixedly connected, and the other end of the rotation section passes through the axis hole on the sliding shaft base and leads with described
Connected to the one end in portion, the other end of the guide part passes through the pilot hole in the fixed plate, the swing component it is another
End is connected on the synchronization chain to move with the synchronization chain, and then the pusher pawl is driven to move back and forth.
7. reciprocal pusher according to claim 6, which is characterized in that the sliding part is linear bearing, the sliding rail
For guide rod, the linear bearing is sheathed on the guide rod to slide along the guide rod;Alternatively, the sliding part is sliding for dovetail groove
Block, the sliding rail are dovetail groove guide rail, and the dovetail groove sliding block is inserted in the dovetail groove guide rail to lead along the dovetail groove
Rail sliding.
8. reciprocal pusher according to claim 6, which is characterized in that further include oil-containing groove, institute is arranged in the oil-containing groove
It states on pedestal, and is located at the drive sprocket and the lower section by movable sprocket.
9. reciprocal pusher according to claim 1, which is characterized in that the pusher pawl further includes secondary pushing block, the pair
Pushing block is connect with the featured block.
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CN201910851545.6A CN110481864A (en) | 2019-09-10 | 2019-09-10 | A kind of reciprocal pusher with power-off protection mechanism |
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