CN203409998U - Safety circuit of plastic injection machine - Google Patents
Safety circuit of plastic injection machine Download PDFInfo
- Publication number
- CN203409998U CN203409998U CN201320432941.3U CN201320432941U CN203409998U CN 203409998 U CN203409998 U CN 203409998U CN 201320432941 U CN201320432941 U CN 201320432941U CN 203409998 U CN203409998 U CN 203409998U
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- safety
- door
- switch
- injection machine
- safety switch
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Abstract
The utility model discloses a safety circuit of a plastic injection machine. The safety circuit comprises a front safety door, a rear safety door and a glue injection door as well as the injection table sides and the die closing sides of the front and rear safety doors, wherein safety switches are arranged on the two sides of the front safety door; a safety switch is arranged on the injection table side of the front safety door; two safety switches are arranged on the die closing side of the front safety door; safety switches are also arranged on the two sides of the rear safety door; a safety switch is arranged on the injection table side of the rear safety door; a safety switch is arranged on the die closing side of the rear safety door; the glue injection door is provided with an insertion piece type safety switch (SQ6); the safety switches of the front and rear doors are connected with a safety relay control module (K20) respectively. According to the safety circuit, the front and rear safety doors are subjected to individual safety relay detection control, so that the system safety and stability of the plastic injection machine are improved and guaranteed and the production processing safety level of the plastic injection machine is increased and guaranteed to a greater extent.
Description
Technical field
The utility model relates to a kind of safety circuit, especially relates to the safety circuit of a kind of use on injection machine.
Background technology
Existing injection machine great majority all adopt the mode of travel switch to be used as its safety circuit.Specifically, after front/rear door is closed, its touch panel has been pushed down corresponding travel switch, thinks that safety door closes, and then can carry out locked mode action.Equally, after injection door closes, push down its corresponding travel switch, thought that injection door closes, then can carry out action of injection.But being made with so a very large potential safety hazard, is exactly after travel switch is malfunctioning, always in closure state; so no matter whether door is shut; injection machine can be done locked mode or action of injection, brings great danger, exists production safety hidden danger problem.
Utility model content
The utility model exists the easy a kind of raising injection machine security that can be to a greater extent providing because of the malfunctioning present situations such as potential safety hazard problem that cause of the travel switch for as safety circuit, the injection machine safety circuit that production and processing safe class is higher for solving existing injection machine.
The utility model is to solve the problems of the technologies described above adopted concrete technical scheme to be: a kind of injection machine safety circuit, comprise injection machine front and back safety door and injection door, and front and back safety door penetrate platform side and matched moulds side, it is characterized in that: before injection machine, the both sides of safety door are equipped with safety switch, wherein penetrate platform side and be provided with a safety switch, matched moulds side is provided with two safety switches; After injector, also equal safety switch of safety door both sides, wherein penetrates platform side and is provided with a safety switch, and matched moulds side is provided with a safety switch; Injection door is provided with the safety switch of blade inserting, and the safety switch of front/rear door is connected with safety relay control module respectively.Front and back safety door is carried out to the detection of independent safety relay and control, improve to a greater extent and ensured injection machine system safety, stability, production and processing safe class.
As preferably, before described injection machine, the both sides safety switch of safety door comprises the first Qianmen safety switch and the second Qianmen safety switch, and wherein front safety door is penetrated platform side safety switch and rear safety door and penetrated the normally opened contact of these two safety switches of platform side safety switch and be connected in series in safety relay control module; The normally-closed contact of the first Qianmen safety switch and rear these two safety switches of safety door safety switch is connected in series in safety relay control module.The security of safety door before and after improving, reduces potential safety hazard.
As preferably, the normally-closed contact of the safety switch of described blade inserting is connected in safety relay control module.Improve the characteristic that meets injection door, after injection door closes, inserted sheet inserts switch, and at this moment safety switch is releasing orientation, inner normally closed interlock conducting, and after injection door is opened, inserted sheet is extracted switch, and at this moment safety switch is for pushing down state, and inner normally closed interlock disconnects.
As preferably, described safety relay control module adopts 24V powered by direct current.Improve system works stability.
As preferably, the normally-closed contact of the second described Qianmen safety switch is connected on the matched moulds valve of matched moulds operation.Better prevent that road cuts off matched moulds circuit firmly when contingency safety relay module lost efficacy, reach and improve security effect.
The beneficial effects of the utility model are: the detection of front and back safety door being carried out to independent safety relay is controlled, and improve to a greater extent and have ensured injection machine system safety, stability, production and processing safe class.Use safety, and energy emergency switching-off reaches the security reliability of assurance production and application to a greater extent.
accompanying drawing explanation:
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 be in the utility model injection machine safety circuit safety switch at the mounting structure schematic diagram of front and back safety door.
Fig. 2 is the control principle schematic diagram of the utility model injection machine safety circuit.
Fig. 3 is the signal output control principle schematic diagram of the utility model injection machine safety circuit.
The specific embodiment
In embodiment shown in Fig. 1, Fig. 2, Fig. 3, a kind of injection machine safety circuit, comprise injection machine front and back safety door and injection door, and front and back safety door penetrate platform side and matched moulds side, before injection machine, the both sides 11 of safety door 10 are equipped with safety switch, wherein penetrate platform side 12 and be provided with a safety switch, matched moulds side is provided with two safety switches; Also equal safety switch of safety door 20 both sides after injector, wherein after safety door penetrate platform side 22 safety switch be installed, matched moulds side 21 is provided with a safety switch SQ5; Rear safety door injection door 30 is provided with the safety switch SQ6 of blade inserting, and the safety switch of front/rear door is connected with safety relay control module K20 respectively.The both sides safety switch of safety door comprises the first Qianmen safety switch SQ2 and the second Qianmen safety switch SQ3 before injection machine, and wherein front safety door is penetrated platform side safety switch SQ1 and rear safety door and penetrated the normally opened contact of these two safety switches of platform side safety switch SQ4 and be connected in series on safety relay control module K20; The normally-closed contact of the first Qianmen safety switch SQ2 and rear these two safety switches of safety door safety switch SQ5 is connected in series on safety relay control module K20.The normally-closed contact of the second Qianmen safety switch SQ3 is connected to (see figure 3) on the matched moulds valve of matched moulds operation.The normally-closed contact of the safety switch SQ6 of blade inserting is connected to the upper (see figure 2) of safety relay control module K20.Safety relay control module K20 adopts 24V powered by direct current.
In use, as shown in Figure 1, in the both sides of front safety door, safety switch being all housed, penetrating one of platform side, is SQ1.Two of matched moulds sides, are respectively SQ2, SQ3; During current safety Men Weiguan, SQ1 is releasing orientation (see figure 2), and SQ2, SQ3 are for pushing down state (seeing Fig. 2, Fig. 3); When current safety door is closed, SQ1 is converted to the state of pushing down, and SQ2, SQ3 are converted to releasing orientation.In the both sides of rear safety door, safety switch is also all housed equally, penetrating one of platform side is SQ4, and one of matched moulds side is SQ5.When rear safety door does not close, SQ4 is releasing orientation, and SQ5 is for pushing down state (see figure 2).When rear safety door is closed, SQ4 is for pushing down state, and SQ5 is releasing orientation.Due to the particularity of injection door, we adopt the safety switch SQ6 of blade inserting, and after injection door closes, inserted sheet inserts switch, at this moment SQ6 is releasing orientation, and inner normally closed interlock conducting, after injection door is opened, inserted sheet is extracted switch, and at this moment SQ6 is for pushing down state, and inner normally closed interlock disconnects.
As shown in Figure 2, K20 is safety relay module, S11-S12, S21-S22 are two input channels of K20, these two input channels that and if only if are within the small time difference all during synchronous conducting, detect whether conducting of reset loop S33-S39, as conducting, K20 is adhesive, 13-14,23-24, these three groups of normally opened contacts closures of 33-34.At this moment, if any arbitrary input channel, disconnect, K20 disconnects, and three groups of normally opened contacts also disconnect.When shown in employing Fig. 2, safety circuit just can avoid malfunctioning if any a safety switch, injection machine can also be done as dangerous plays such as locked mode, injections.When front and back safety door all shuts, detect whether adhesive of K11, K12, as all not adhesives, K20 adhesive, K11 coil obtain electric, K11 adhesive.During as K20 adhesive, only have injection door to close, K12 coil could obtain electric, K12 adhesive.
As shown in Figure 3, only have when front and back safety door all shuts, K11 adhesive, the output point matched moulds of computer, die sinking could normally export respective electrical magnet valve to, as matched moulds valve T1, die sinking valve T3.Now injection machine just can be done matched moulds or die sinking action.Only have and all shut and when injection door also shuts when front and back safety door, K12 adhesive, the output point of computer enters normally to export respective electrical magnet valve to as storing, injection, seat, as storing valve T6, introduction valve T4, seat enter valve T7.Now injection machine just can be done storing, injection or seat precession work.In addition, the safety switch SQ3 that also connected on matched moulds circuit, this is in order to prevent just in case safety relay module while losing efficacy, firmly road cut-out matched moulds circuit.
Although more used the terms such as safety switch safety relay control module of safety switch, blade inserting herein; But do not get rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (5)
1. an injection machine safety circuit, comprise safety door and injection door before and after injection machine, and front and back safety door penetrate platform side and matched moulds side, it is characterized in that: before injection machine, the both sides of safety door are equipped with safety switch, wherein penetrate platform side and be provided with a safety switch, matched moulds side is provided with two safety switches; After injector, also equal safety switch of safety door both sides, wherein penetrates platform side and is provided with a safety switch, and matched moulds side is provided with a safety switch; Injection door is provided with the safety switch (SQ6) of blade inserting, and the safety switch of front/rear door is connected with safety relay control module (K20) respectively.
2. according to injection machine safety circuit claimed in claim 1, it is characterized in that: before described injection machine, the both sides safety switch of safety door comprises the first Qianmen safety switch (SQ2) and the second Qianmen safety switch (SQ3), wherein front safety door is penetrated platform side safety switch (SQ1) and rear safety door and is penetrated the normally opened contact of these two safety switches of platform side safety switch (SQ4) and be connected in series in safety relay control module (K20); The normally-closed contact of the first Qianmen safety switch (SQ2) and these two safety switches of rear safety door safety switch (SQ5) is connected in series in safety relay control module (K20).
3. according to injection machine safety circuit claimed in claim 1, it is characterized in that: the normally-closed contact of the safety switch of described blade inserting (SQ6) is connected in safety relay control module (K20).
4. according to the injection machine safety circuit described in claim 1 or 3, it is characterized in that: described safety relay control module (K20) adopts 24V powered by direct current.
5. according to injection machine safety circuit claimed in claim 2, it is characterized in that: the normally-closed contact of the second described Qianmen safety switch (SQ3) is connected on the matched moulds valve of matched moulds operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320432941.3U CN203409998U (en) | 2013-07-22 | 2013-07-22 | Safety circuit of plastic injection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320432941.3U CN203409998U (en) | 2013-07-22 | 2013-07-22 | Safety circuit of plastic injection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203409998U true CN203409998U (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320432941.3U Expired - Fee Related CN203409998U (en) | 2013-07-22 | 2013-07-22 | Safety circuit of plastic injection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203409998U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904650A (en) * | 2015-02-24 | 2016-08-31 | 发那科株式会社 | Injection molding machine and an additional injection device |
| CN106965399A (en) * | 2017-05-22 | 2017-07-21 | 徐振勇 | Safety door mechanical protection lock before a kind of large size plastic jetting-moulding device is automatic |
| CN109049593A (en) * | 2018-07-13 | 2018-12-21 | 海天塑机集团有限公司 | A kind of safety return circuit of the vertical injection molding machine with servo turntable |
| CN110509515A (en) * | 2019-09-02 | 2019-11-29 | 珠海格力智能装备有限公司 | Mode locking control device, the injection molding machine of injection molding machine |
-
2013
- 2013-07-22 CN CN201320432941.3U patent/CN203409998U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904650A (en) * | 2015-02-24 | 2016-08-31 | 发那科株式会社 | Injection molding machine and an additional injection device |
| CN105904650B (en) * | 2015-02-24 | 2018-01-23 | 发那科株式会社 | injection molding system with additional injection device |
| CN106965399A (en) * | 2017-05-22 | 2017-07-21 | 徐振勇 | Safety door mechanical protection lock before a kind of large size plastic jetting-moulding device is automatic |
| CN109049593A (en) * | 2018-07-13 | 2018-12-21 | 海天塑机集团有限公司 | A kind of safety return circuit of the vertical injection molding machine with servo turntable |
| CN109049593B (en) * | 2018-07-13 | 2024-04-30 | 海天塑机集团有限公司 | Safety loop of vertical injection molding machine with servo turntable |
| CN110509515A (en) * | 2019-09-02 | 2019-11-29 | 珠海格力智能装备有限公司 | Mode locking control device, the injection molding machine of injection molding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20170722 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |