CN104708728A - Safety protector for open mill - Google Patents
Safety protector for open mill Download PDFInfo
- Publication number
- CN104708728A CN104708728A CN201510106406.2A CN201510106406A CN104708728A CN 104708728 A CN104708728 A CN 104708728A CN 201510106406 A CN201510106406 A CN 201510106406A CN 104708728 A CN104708728 A CN 104708728A
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- safety
- mill
- limit switch
- secondary normally
- closed contact
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Abstract
The invention relates to a safety protector for an open mill. A protective screening is arranged at the rear of the open mill; a mounting door is arranged on the protective screening; a safety bolt is mounted on the mounting door; an emergency-stop pedal switch is arranged below the open mill; a trigger point is arranged on the emergency-stop pedal switch; the emergency-stop pedal switch is connected with a limit switch A; a safety push rod is arranged in the middle of a front roller; a limit switch B is arranged behind the safety push rod and fixed to the safety push rod; a vision sensor A and a vision sensor B are arranged at the two sides above the open mill; the two sensors face to the joint position between the front roller and a rear roller; in the using process, a safety relay monitors an accessed normally closed contact, so that in the emergency circumstances, the personal safety of an operator can be ensured; when the vision sensors detect the situation that in the sizing material extrusion area, an object different from the sizing material in color enters into the detection area, the safety protector can immediately stop the machine and give an alarm, so that the safety of staff can be guaranteed to the largest extent.
Description
Technical field
The present invention relates to domestic appliance field, the safety device of particularly a kind of mill.
Background technology
Mill is that the one that the horizontal roller of two different rotating speeds carrys out glue stuff compounding by low speed rotation is mechanical, mill in the course of the work, feed intake, adjustment roll spacing, cutting sizing material etc. all needs operating personnel to carry out when equipment operation, therefore there is larger potential safety hazard, particularly operating personnel take cutter when preliminary roller carries out blank operation, if operate lack of standardization, finger and wrist are very easily involved in roller, thus cause serious industrial accident, in order to the generation of Accident prevention, often safety device is installed on a mill until, as rotary part installs protection network and protective door at mill side and rear etc., install in operation place and suddenly stop foot switch, safety push-rod, safe pull rope etc., make personnel when causing danger, can stop by Self-operating emergency stop device, these safety devices come to harm although can reduce personnel, reduce contingency occurrence probability, but limited use, this is main because these devices need operating personnel to be in case of emergency swift in response, operation is quick.In addition, these safety devices often adopt a secondary normally opened contact and a secondary normally-closed contact, normally opened contact controls the action of mill band-type brake, normally-closed contact controls mill and suddenly stops action, when contact is damaged, safety device cannot effective action, and safe class is lower, can not provide a ultra-safe construction environment when in use to workmen.
Summary of the invention
To the present situation of above-mentioned prior art, technical problem to be solved by this invention is the safety device providing a kind of mill, to solve the above-mentioned multinomial defect caused in prior art.
For achieving the above object, the invention provides following technical scheme: a kind of safety device of mill, comprise mill body, described mill is by shell, preliminary roller and rear roller composition, described mill rear is provided with protection network, described protection network is provided with installation door, described installation door is equipped with safety pin, the below of described mill is provided with suddenly stops foot switch, described urgency is stopped foot switch and is provided with trigger point and is connected to limit switch A, safety push-rod is provided with at the middle part of described preliminary roller, be provided with limit switch B after described safety push-rod and fix with safety push-rod, above described mill, position, both sides is provided with vision sensor A and vision sensor B, described two sensors all face preliminary roller and rear roller junction, the safety device of described mill is provided with a vision controller, described vision controller comprises its input and output, described input is connected with vision sensor B with vision sensor A, described output connects anxious power failure road and band-type brake circuit.
Preferably, above described mill, safe pull rope is housed.
Preferably, described safety pin, limit switch A, limit switch B, safe pull rope are all furnished with two secondary normally-closed contacts and two secondary normally opened contacts.
Preferably, a wherein secondary normally-closed contact of described limit switch A and the series connection of one of limit switch B secondary normally-closed contact on access security relay A, another secondary normally closed point of limit switch A is connected with another secondary normally-closed contact of limit switch B and is linked in safety relay A.
Preferably, a described safety pin wherein secondary normally-closed contact is connected with a secondary normally-closed contact of safe pull rope and is linked in safety relay B, and another secondary normally-closed contact of described safety pin is connected with another secondary normally-closed contact of safe pull rope and is linked in safety relay B.
Preferably, described safety relay A and safety relay B is concatenated into anxious stopping in the middle of loop.
Preferably, a wherein secondary normally opened contact of described safe pull rope, safety pin, limit switch A, limit switch B is connected to form brake loop A, forms band-type brake circuit B after another secondary normally opened contact is connected.
Preferably, described mill safety device is Programmable logical controller.
The beneficial effect of above technical scheme is adopted to be: the safety device of a kind of mill adopting this invention to provide when in use, the normally closed point of safety relay to access is monitored, when safety device action, the normally closed point of safety relay becomes normal battle, such mill is also with regard to emergency shutdown, the personal safety of the operator in emergency can be ensured, after potential safety hazard is removed, press SR mill can restart, and have the object differing from sizing material color to enter in surveyed area when vision sensor detects sizing material crush-zone, meeting stopping alarm at once, ensure the safety of employee to greatest extent.
Accompanying drawing explanation
Fig. 1 is the safety device of a kind of mill of the present invention.
Fig. 2 is the safety device plc control principle ladder diagram of mill.
Wherein: 1-mill body, 2-shell, 3-preliminary roller, 4-rear roller, 5-protection network, 6-door is installed, 7-safety pin, 8-suddenly stop foot switch, 9-trigger point, 10-limit switch A, 11-safety push-rod, 12-limit switch B, 13-vision sensor A, 14-vision sensor B, 15-safe pull rope, 16-roller junction.
Y1-secondary normally-closed contact of limit switch A mono-, Y2-secondary normally-closed contact of limit switch B mono-, another secondary normally-closed contact of Y3-limit switch A, another secondary normally-closed contact of Y4-limit switch B, Y5-safety pin is a secondary normally-closed contact wherein, one secondary normally-closed contact of Y6-safe pull rope, another secondary normally-closed contact of Y7-safety pin, another secondary normally-closed contact of Y8-safe pull rope, Y9-safe pull rope one normally opened contact, Y10-safety pin one normally opened contact, Y11-limit switch A mono-normally opened contact, Y12-limit switch B mono-normally opened contact, another normally opened contact of Y13-safe pull rope, another normally opened contact of Y14-safety pin, another normally opened contact of Y15-safety pin, Y16-another normally opened contact of limit switch B, Y20-safety relay A, Y21-urgency stops circuit relay, Y22-safety relay B, Y23-band-type brake circuit A, Y24-band-type brake circuit B, T20-safety relay A normally opened contact, T22-safety relay B normally opened contact.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is further elaborated.
As shown in Figure 1, a kind of safety device of mill, comprise mill body 1, described mill is by shell 2, preliminary roller 3 and rear roller 4 form, described mill 1 rear is provided with protection network 5, described protection network 5 is provided with installs door 6, described installation door 6 is equipped with safety pin 7, the below of described mill is provided with suddenly stops foot switch 8, described urgency is stopped foot switch 8 and is provided with trigger point and is connected to limit switch A 10, safety push-rod 11 is provided with at the middle part of described preliminary roller 3, be provided with limit switch B 12 after described safety push-rod 11 and fix with safety push-rod 11, above described mill 1, position, both sides is provided with vision sensor A 13 and vision sensor B 14, described two sensors all face preliminary roller and rear roller junction 16, the safety device of described mill 1 is provided with a vision controller, described vision controller comprises its input and output, described input is connected with vision sensor B 14 with vision sensor A 13, described output connects anxious power failure road and band-type brake circuit, because in the middle of traditional mill, there is certain potential safety hazard when in use, normally opened contact controls the action of mill band-type brake, normally-closed contact controls mill and suddenly stops action, when contact is damaged, safety device cannot effective action, safe class is lower, a ultra-safe construction environment can not be provided when in use to workmen, in the present embodiment, suddenly band-type brake circuit and skirt emergency stop switch is stopped by adding, can by the moment human response of skirt emergency stop switch when the use used, control the shutdown of mill, and stop foot switch 8 and be provided with trigger point anxious and be connected to limit switch A 10, safety push-rod 11 is provided with at the middle part of described preliminary roller 3, limit switch B is provided with after described safety push-rod 11, limit switch can be made to react instantaneously when foot switch action time, automatically detect and arresting gear so the switch that provide not only human response in the present embodiment also has.
It should be noted that; above described mill 1, position, both sides is provided with vision sensor A 13 and vision sensor B 14; described two sensors all face preliminary roller and rear roller junction 16; vision sensor detects sizing material crush-zone; enter in surveyed area when there being the object differing from sizing material color; meeting stopping alarm at once, has ensured the safety of employee to greatest extent.
In addition, ladder diagram as shown in Figure 2, described safety pin 7, limit switch A 10, limit switch B 12, safe pull rope 15 is all furnished with two secondary normally-closed contacts and two secondary normally opened contacts, a wherein secondary normally-closed contact of described limit switch A 10 and the series connection of one of limit switch B 12 secondary normally-closed contact on access security relay A, another secondary normally closed point of limit switch A 10 is connected with another secondary normally-closed contact of limit switch B 12 and is linked in safety relay A, a described safety pin 7 wherein secondary normally-closed contact is connected with a secondary normally-closed contact of safe pull rope and is linked in safety relay B, another secondary normally-closed contact of described safety pin is connected with another secondary normally-closed contact of safe pull rope and is linked in safety relay B, described safety relay A and safety relay B is concatenated into and suddenly stops in the middle of loop, when limit switch A 10 become normally opened contact with any one normally-closed contact in limit switch B 12 time safety relay A will trigger, the normally opened contact of safety relay A is become normally closed, so also just make suddenly to stop circuit working, mill 1 is shut down.
Described on base; as shown in the ladder diagram of Fig. 2; a wherein secondary normally opened contact of described safe pull rope 15, safety pin 7, limit switch A 10, limit switch B 12 is connected to form brake loop A; band-type brake circuit B is formed after another secondary normally opened contact is connected; as shown in Figure 2; normally opened contact is wherein for being connected in parallel; when one of them often open get an electric shock become normally closed time; the brake loop of its correspondence is also just connected; the drive unit of mill is carried out band-type brake by described brake loop, and mill is shut down.Can know, in the present embodiment, in time there is some exception in any position of safety pin 7, limit switch A 10, limit switch B 12, safe pull rope 15, anxious power failure road and brake loop will be touched simultaneously, also just can ensure that mill was stopped in the extremely short time, promote safe class, ensure the construction environment of a safety.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (8)
1. the safety device of a mill, comprise mill body, described mill is by shell, preliminary roller and rear roller composition, it is characterized in that: described mill rear is provided with protection network, described protection network is provided with installation door, described installation door is equipped with safety pin, the below of described mill is provided with suddenly stops foot switch, described urgency is stopped foot switch and is provided with trigger point and is connected to limit switch A, safety push-rod is provided with at the middle part of described preliminary roller, be provided with limit switch B after described safety push-rod and fix with safety push-rod, above described mill, position, both sides is provided with vision sensor A and vision sensor B, described two sensors all face preliminary roller and rear roller junction, the safety device of described mill is provided with a vision controller, described vision controller comprises its input and output, described input is connected with vision sensor B with vision sensor A, described output connects anxious power failure road and band-type brake circuit.
2. the safety device of a kind of mill according to claim 1, is characterized in that, above described mill, safe pull rope is housed.
3. the safety device of a kind of mill according to claim 1, is characterized in that, described safety pin, limit switch A, limit switch B, safe pull rope are all furnished with two secondary normally-closed contacts and two secondary normally opened contacts.
4. limit switch according to claim 3, it is characterized in that: a wherein secondary normally-closed contact of described limit switch A and the series connection of one of limit switch B secondary normally-closed contact on access security relay A, another secondary normally closed point of limit switch A is connected with another secondary normally-closed contact of limit switch B and is linked in safety relay A.
5. safety pin according to claim 3, it is characterized in that: a described safety pin wherein secondary normally-closed contact is connected with a secondary normally-closed contact of safe pull rope and is linked in safety relay B, and another secondary normally-closed contact of described safety pin is connected with another secondary normally-closed contact of safe pull rope and is linked in safety relay B.
6. the safety relay according to claim 4,5, is characterized in that: described safety relay A and safety relay B is concatenated into and suddenly stops in the middle of loop, and described urgency is stopped loop and is provided with SR.
7. the safety device of a kind of mill according to claim 1, it is characterized in that: a wherein secondary normally opened contact of described safe pull rope, safety pin, limit switch A, limit switch B is connected to form brake loop A, forms band-type brake circuit B after another secondary normally opened contact is connected.
8. the safety device of a kind of mill according to claim 1, is characterized in that: described mill safety device is Programmable logical controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510106406.2A CN104708728B (en) | 2015-03-11 | 2015-03-11 | A kind of safety device of mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510106406.2A CN104708728B (en) | 2015-03-11 | 2015-03-11 | A kind of safety device of mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104708728A true CN104708728A (en) | 2015-06-17 |
| CN104708728B CN104708728B (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510106406.2A Active CN104708728B (en) | 2015-03-11 | 2015-03-11 | A kind of safety device of mill |
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| CN (1) | CN104708728B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108556177A (en) * | 2018-06-29 | 2018-09-21 | 陈耀海 | A kind of open mill being separated into Security mechanism with roller |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551057A (en) * | 2008-04-02 | 2009-10-07 | 中国航天科技集团公司长征机械厂 | Mechanical attached safety protector for hydraulic compressor |
| CN202278680U (en) * | 2011-09-12 | 2012-06-20 | 王希玉 | Open mill with double emergency stop devices |
| CN203557078U (en) * | 2013-11-14 | 2014-04-23 | 重庆延锋江森汽车部件系统有限公司 | Safety protection device |
| CN204076556U (en) * | 2014-08-26 | 2015-01-07 | 三角（威海）华盛轮胎有限公司 | Mill security protection photoelectric detection system |
| CN104338870A (en) * | 2014-10-31 | 2015-02-11 | 金盛紧固技术(安徽)有限责任公司 | Electric protection device used for hose clamp tape stamping production line |
| CN204525826U (en) * | 2015-03-11 | 2015-08-05 | 杭州朝阳橡胶有限公司 | A kind of safety device of mill |
-
2015
- 2015-03-11 CN CN201510106406.2A patent/CN104708728B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551057A (en) * | 2008-04-02 | 2009-10-07 | 中国航天科技集团公司长征机械厂 | Mechanical attached safety protector for hydraulic compressor |
| CN202278680U (en) * | 2011-09-12 | 2012-06-20 | 王希玉 | Open mill with double emergency stop devices |
| CN203557078U (en) * | 2013-11-14 | 2014-04-23 | 重庆延锋江森汽车部件系统有限公司 | Safety protection device |
| CN204076556U (en) * | 2014-08-26 | 2015-01-07 | 三角（威海）华盛轮胎有限公司 | Mill security protection photoelectric detection system |
| CN104338870A (en) * | 2014-10-31 | 2015-02-11 | 金盛紧固技术(安徽)有限责任公司 | Electric protection device used for hose clamp tape stamping production line |
| CN204525826U (en) * | 2015-03-11 | 2015-08-05 | 杭州朝阳橡胶有限公司 | A kind of safety device of mill |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108556177A (en) * | 2018-06-29 | 2018-09-21 | 陈耀海 | A kind of open mill being separated into Security mechanism with roller |
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| Publication number | Publication date |
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| CN104708728B (en) | 2017-01-04 |
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