CN102152873A - Safety protection device for laser automatic unpacking machine - Google Patents
Safety protection device for laser automatic unpacking machine Download PDFInfo
- Publication number
- CN102152873A CN102152873A CN2011100446343A CN201110044634A CN102152873A CN 102152873 A CN102152873 A CN 102152873A CN 2011100446343 A CN2011100446343 A CN 2011100446343A CN 201110044634 A CN201110044634 A CN 201110044634A CN 102152873 A CN102152873 A CN 102152873A
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- China
- Prior art keywords
- switch
- roller
- pedestal
- unpacking machine
- adapter sleeve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a safety protection device for a laser automatic unpacking machine. The device comprises a switch connecting sleeve and a switch pedestal, wherein the switch pedestal is cylindrical and one end of the switch pedestal is provided with an end cover; the switch connecting sleeve is arranged in the switch pedestal and is connected with the end cover through a spring; a switch and a roller are fixedly arranged in the switch connecting sleeve; the roller is connected to the inner wall of the switch connecting sleeve through a shaft; the end face of the roller is provided with a plurality of through holes which are uniformly distributed along the circumference centered on the shaft; the through holes are aligned with a receiver on the switch; and when the spring is in a natural state, the roller extends out of the switch pedestal. In the invention, movement of a packing box on a conveying mechanism is converted into an electric signal, and data processing is performed through a PLC (Programmable Logic Controller) to control turn-on and turn-off of a laser device; laser is prevented from irradiating the same position on a sealing compound for a long time so as not to cause a fire accident; and compared with a rotary encoder, a photoelectric encoder has a simple structure and low cost.
Description
Technical field
The present invention relates to a kind of safety guard, relate in particular to a kind of safety guard of laser automatic case unpacking machine.
Background technology
Automatic case unpacking machine is widely used in fields such as cigarette, medicine, retail business, and the principle of existing automatic case unpacking machine generally is by the laser opening device on it sealing rubber on packing chest to be melted to open packing.When packing chest was stuck on the connecting gear of case unpacker, laser shone for a long time and can burn same position on the sealing rubber, causes fire.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art part; a kind of safety guard of laser automatic case unpacking machine is provided, the mobile electric signal that is converted into of the packing chest on the connecting gear can be carried out the opening and closing that data handing is controlled laser device by PLC.
To achieve these goals; the technical solution used in the present invention is such: a kind of safety guard of laser automatic case unpacking machine; comprise switch adapter sleeve and switch pedestal; described switch pedestal is cylindric; the one end is provided with end cap; described switch adapter sleeve places in the switch pedestal; and be connected with end cap by spring; be installed with switch and roller in this switch adapter sleeve; described roller is connected by axle on the inwall of switch adapter sleeve, and it is the center along axle that the roller end face is provided with several; the through hole that is circularly and evenly distributed, this through hole aligns with receptor on the switch; spring is in the raw the time, and roller stretches out outside the switch pedestal.
As preferably, described switch is a photoelectric switch or near switch.
As preferably, described switch pedestal sidewall is provided with slotted hole in axial direction, and described switch adapter sleeve is slidingly connected on the slotted hole by interior spiral shell corner bolt.
As preferably, be installed with a support on the described switch pedestal excircle, support is provided with knock hole.
Compared with prior art, the invention has the advantages that: the packing chest on the connecting gear mobile is converted into electric signal reaches the PLC control unit and carry out the opening and closing that data handing is controlled laser device, avoid laser to aim on the sealing rubber same position irradiation for a long time and cause fire accident, compare rotary coding, photoelectric encoder is simple in structure and cost is lower.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the right TV structure scheme drawing of Fig. 1;
Fig. 3 is the structural representation of the present invention when in running order.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
With reference to Fig. 1, Fig. 2; a kind of safety guard of laser automatic case unpacking machine; comprise switch adapter sleeve 1 and switch pedestal 2; described switch pedestal 2 is cylindric; the one end is provided with end cap, and described switch adapter sleeve 1 places in the switch pedestal 2, and is connected with end cap by spring; be provided with switch 3 and roller 4 in this switch adapter sleeve 1, described switch 3 is a photoelectric switch or near switch.Described roller 4 is connected on the inwall of switch adapter sleeve 1 by axle, roller 4 end faces be provided with several along axle be the center, the through hole that is circularly and evenly distributed, this through hole aligns with receptor on the switch 3, and in the raw the time, roller 4 stretches out outside the switch pedestal 2 at spring.Be provided with two slotted holes in axial direction that the position is relative on described switch pedestal 2 sidewalls, described switch adapter sleeve 1 is slidingly connected on the slotted hole by interior spiral shell corner bolt 7.Be installed with a support 8 on described switch pedestal 2 excircles, these support 8 positions are on the perpendicular line of the line between two slotted holes on the switch pedestal 2, and support 8 is provided with knock hole.
With reference to Fig. 3, this invention is fixedly mounted on a side of case unpacker connecting gear 5 by the knock hole on the support 8, and will be provided with the connecting gear 5 of an end face of roller 4 to case unpacker, described roller 4 rotation directions are consistent with connecting gear 5 sense of motions, and the receptor on the switch 3 is connected with laser device on the case unpacker by the PLC control unit.
The condition that need satisfy when the present invention works is: 1. roller 4 must be close to object to be detected; 2. institute's packing chest of opening 6 and roller 4 mating surfacess more smooth (as cuboid).
Groundwork of the present invention is: when the packing chest on the connecting gear 6 moves forward, the roller 4 that is in contact with it is because friction and rotation, make the receptor on the switch 3 form impulse singla (1 and 0), this impulse singla is input to the PLC control unit and handles, and controls the continuous operations of laser device; When packing chest 6 was stuck on the connecting gear 5, receptor on the switch 3 formed direct current signal, and was input to the PLC control unit and handles and control closing of laser device, avoided laser that the sealing rubber on the packing chest is shone presence of fire for a long time.
In operation of the present invention, when packing chest 6 touches roller 4, roller 4 and switch adapter sleeve 1 be compression spring inwards, roller 4 and packing chest 6 are kept in touch, on running into packing chest 6 some rough whens surface, keep contacting of roller 4 and packing chest 6 by stretching automatically of spring, thereby make the receptor on the switch 3 produce stable impulse singla.The precision of the impulse singla that is produced can be determined by the quantity of through hole on the roller 4.
The above only is the detailed description of preferred embodiment of the present invention and graphic, is not to be used for limiting the present invention, and the embodiment or the approximate construction of all similar variations of doing according to creation spirit of the present invention all should be contained among the present invention.
Claims (4)
1. the safety guard of a laser automatic case unpacking machine; it is characterized in that: comprise switch adapter sleeve (1) and switch pedestal (2); described switch pedestal (2) is cylindric; the one end is provided with end cap; described switch adapter sleeve (1) places in the switch pedestal (2); and be connected with end cap by spring; be installed with switch (3) and roller (4) in this switch adapter sleeve (1); described roller (4) is connected on the inwall of switch adapter sleeve (1) by axle; it is the center along axle that roller (4) end face is provided with several; the through hole that is circularly and evenly distributed; this through hole aligns with receptor on the switch (3); spring is in the raw the time, and roller (4) stretches out outside the switch pedestal (2).
2. the safety guard of a kind of laser automatic case unpacking machine according to claim 1 is characterized in that: described switch (3) is for photoelectric switch or near switch.
3. the safety guard of a kind of laser automatic case unpacking machine according to claim 1; it is characterized in that: described switch pedestal (2) sidewall is provided with slotted hole in axial direction, and described switch adapter sleeve (1) is slidingly connected on the slotted hole by interior spiral shell corner bolt (7).
4. the safety guard of a kind of laser automatic case unpacking machine according to claim 1 is characterized in that: be installed with a support (8) on described switch pedestal (2) excircle, support (8) is provided with knock hole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011100446343A CN102152873A (en) | 2011-02-24 | 2011-02-24 | Safety protection device for laser automatic unpacking machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011100446343A CN102152873A (en) | 2011-02-24 | 2011-02-24 | Safety protection device for laser automatic unpacking machine |
Publications (1)
Publication Number | Publication Date |
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CN102152873A true CN102152873A (en) | 2011-08-17 |
Family
ID=44434626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2011100446343A Pending CN102152873A (en) | 2011-02-24 | 2011-02-24 | Safety protection device for laser automatic unpacking machine |
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CN (1) | CN102152873A (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3304434A (en) * | 1965-06-01 | 1967-02-14 | Bunker Ramo | Position control system employing pulse producing means indicative of magnitude and direction of movement |
CN1124534A (en) * | 1993-04-09 | 1996-06-12 | 菲杰国际有限公司 | Personal alarm system |
CN2659841Y (en) * | 2003-11-25 | 2004-12-01 | 童燕平 | High speed auto picker for carton of cigarettes |
CN2789910Y (en) * | 2005-03-25 | 2006-06-21 | 郑登权 | Outer elastic trigger alarming switch |
CN2823197Y (en) * | 2005-09-20 | 2006-10-04 | 鲍立威 | Automatic article vertical piling device capable of preventing side turn-over |
CN201614028U (en) * | 2010-03-22 | 2010-10-27 | 北京中侨创意科技发展有限公司 | Laser single-side box opening device |
-
2011
- 2011-02-24 CN CN2011100446343A patent/CN102152873A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3304434A (en) * | 1965-06-01 | 1967-02-14 | Bunker Ramo | Position control system employing pulse producing means indicative of magnitude and direction of movement |
CN1124534A (en) * | 1993-04-09 | 1996-06-12 | 菲杰国际有限公司 | Personal alarm system |
CN2659841Y (en) * | 2003-11-25 | 2004-12-01 | 童燕平 | High speed auto picker for carton of cigarettes |
CN2789910Y (en) * | 2005-03-25 | 2006-06-21 | 郑登权 | Outer elastic trigger alarming switch |
CN2823197Y (en) * | 2005-09-20 | 2006-10-04 | 鲍立威 | Automatic article vertical piling device capable of preventing side turn-over |
CN201614028U (en) * | 2010-03-22 | 2010-10-27 | 北京中侨创意科技发展有限公司 | Laser single-side box opening device |
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Application publication date: 20110817 |