CN102921832A - Support column type hand-pressing preventive safety device for hydraulic press - Google Patents
Support column type hand-pressing preventive safety device for hydraulic press Download PDFInfo
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- CN102921832A CN102921832A CN2012104371177A CN201210437117A CN102921832A CN 102921832 A CN102921832 A CN 102921832A CN 2012104371177 A CN2012104371177 A CN 2012104371177A CN 201210437117 A CN201210437117 A CN 201210437117A CN 102921832 A CN102921832 A CN 102921832A
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Abstract
The invention discloses a support column type hand-pressing preventive safety device for a hydraulic press. The device comprises a base (1), a wall board (2), a pressing bar (3), a slider (4), a pull rod (5), a spring (6), a front positioning rod (7), a rear positioning rod (71), a travel switch (8) and a support column (9). According to the structure of the device, hands are hampered through mechanical linkage and circuit series connection linkage modes formed by two devices, the technical scheme of mechanical support by the support column is adopted, the defects that long-term operation is unstable and personnel security is difficult to guarantee in the prior art are overcome, the danger that a movable beam board presses down suddenly before a person extracts the hands out is avoided, long-term operation is stable, and personnel security can be guaranteed due to the device.
Description
Technical field
The present invention relates to a kind of safety device of hydraulic press, specifically refer to be used to preventing that the hydraulic press misoperation from weighing the anti-hand safety device of pressing of a kind of column support type hydraulic press of the staff accident that disables wounded.
Background technology
In hydraulic press when work, is because of machinery, apparatus failure or because of the tired maloperation of operator, generation such as press down continuously, staff not yet withdraws from and the misoperation such as presses down, cause the miserable accident that disables of hurting sb.'s feelings, in order to prevent the hydraulic press casualty accident, prior art adopts electronic safety device, by the infrared electro monitoring, after confirming that staff is withdrawn, control again hydraulic press and press down; Because there is malfunctioning phenomenon in the reliability of long-time running electronic safety device, cause very dangerously, therefore, there are the problems and shortcomings that long-time running is unreliable, be difficult to guarantee personal security in prior art.
Summary of the invention
Problems and shortcomings for above-mentioned prior art existence, the present invention adopts the device that is made of base, wallboard, press strip, slide block, pull bar, spring, prelocalization bar, rear backstay, travel switch, support column, be provided with the passage that inserts for support column in the base downwards, slide block can the front and back slip be arranged in the slideway that is surrounded by base, wallboard, press strip, the slide block of initial state stops the passage of base backward, travel switch is fixedly installed on the top of base and corresponding to the front of slide block, the front of slide block is provided with pull bar, and pull bar is provided with the spring that resets for slide block; During application, by two these devices of cover be separately positioned on extrusion die about two sides, wherein, base be fixed on hydraulic press lower beam slab above, support column be fixed on hydraulic press moving beam slab below, and the lower end of support column is positioned at the top corresponding with the passage of base; During work, after the operator places the progressive die tool with workpiece, must both hands respectively simultaneously pulling be positioned at extrusion die about two these devices of cover pull bar separately of two sides, make slip away the forward passage of base of separately slide block, and make separately slide block touch simultaneously separately travel switch, two travel switches that adhere to two these devices of cover separately press down work through the closed moving beam slab of connecting the solenoid-driven hydraulic press of series circuit, among the passage that presses down inserted base of the servo-actuated beam slab in lower end of support column; If only have the travel switch of this device of cover to be switched on, because the effect of series circuit, the circuit of magnetic valve is obstructed, and then the moving beam slab of hydraulic press can not press down work; If hydraulic press generation machinery or apparatus failure, if if normally closed fault occurs because of welding in travel switch or when because the operator is tired maloperation occuring, be blocked in the top of base passages as long as wherein there is the slide block of this device of cover not pulled open, then the support column corresponding with this passage moving beam slab of top prevention that is supported on slide block presses down, thereby guarantee the technical scheme of personal safety, provide a kind of column support type hydraulic press the anti-hand safety device of pressing, be intended to pin down by the mode by the two cover mechanical linkages that consist of of these devices and circuit series connection interlock people's both hands, utilize the mechanical support of support column, the danger that moving beam slab presses down suddenly when stopping staff and not extracting out, make the anti-pressure hand safety device of hydraulic press, reach long-time running reliable, guarantee the purpose of personal safety.
The object of the present invention is achieved like this: the anti-hand safety device of pressing of a kind of column support type hydraulic press, comprise base, wallboard, press strip, slide block, pull bar, spring, prelocalization bar, rear backstay, travel switch, support column, wherein: described base is the upper platen that top is provided with rectangle, the middle part is provided with the cylinder of rectangle, the bottom is provided with the base plate of rectangle, face and be I-shaped steel components, wherein, described cylinder be positioned at described upper platen left part below, described cylinder be positioned at described base plate center above; Be provided with along the vertical center line of described cylinder and run through base manhole up and down and be called passage; The right of described upper platen is fixed with steel plate protruding upward and is called right board, and the left side of described upper platen is fixed with steel plate protruding upward and is called left board;
Described wallboard is the steel components of rectangular plate-like;
Described press strip is the steel components of rectangular slab strip;
Two blocks of wallboards are fixedly connected on relatively respectively two limits, front and back above the described upper platen, article two, press strip along the long limit of wallboard be fixedly connected on respectively two blocks of wallboards above, article two, press strip between two blocks of relative wallboards above the eaves bar that relatively stretches out of two of formation, so, on the described upper platen of base, surrounded and be used for the slideway that the constraint guide runner horizontally slips by two blocks of wallboards, two press strips;
Described slide block is the steel components of rectangular block shape;
Described pull bar is the shaft-like steel components of cylinder, and the right-hand member of pull bar is provided with the handle of downward bending;
Described spring is cylindroid helical-coil compression spring;
Described prelocalization bar and rear backstay are hexagon-headed bolt;
Described travel switch is to be provided with often to start to close and the normally closed moving electric touch switch of contact of opening;
Described support column is cylindrical steel rods, and the upper end of support column is provided with for be fixedly connected with the externally threaded cylinder step of being provided with of purposes with the moving beam slab of hydraulic press;
The slide left part of the described slideway be arranged in base of slide block stops described passage, and pull bar slides and is through in the through hole that arranges on the described right board, and the left end of pull bar is fixedly connected on the right side of slide block, and spring is enclosed within on the pull bar between the right side of slide block and right board; The prelocalization bar screws left and passes the internal thread hole that is arranged on the described right board and be connected with right board, and the right bead that the left end of prelocalization bar is positioned at described passage meets with the right side of slide block and contacts; Rear backstay screws to the right and passes the internal thread hole that is arranged on the described left board and be connected with left board, and the left bead that the right-hand member of rear backstay is positioned at described passage contacts with the left side of slide block; Travel switch is positioned at the right above the described upper platen, and the right bead that the contact of travel switch is positioned at described passage meets with the right side of slide block and contacts; The described base plate of base be fixed on hydraulic press lower beam slab above, support column be fixedly connected on downwards hydraulic press moving beam slab below, the lower end correspondence of support column is suspended in the top of the described passage of base;
The direction face of structure representation is divided into up, down, left, right, front, rear side, wherein, the front by in the face of the face of statement main body, the back is the face relative with described front.
Operation principle and beneficial effect
This device is used description with the operation front of hydraulic press, for this reason, the left and right directions that structure is described for use rear the place ahead of describing to.
During application, two the cover these devices be separately positioned on extrusion die about two sides, adhere to separately two the cover these devices travel switch often start close the contact by the series connection be connected with the control system of hydraulic press;
When pressing down work, after workpiece placed the progressive die tool, the operator must both hands respectively simultaneously pulling be positioned at extrusion die about two these devices of cover pull bar separately of two sides, make two these devices of cover slide block edge separately passages separately touch simultaneously separately travel switch to front slide, at this moment, because slipping away of slide block, the passage of base opens wide support column, the moving beam slab that the control system of travel switch closures by hydraulic press that adheres to two series connection of two these devices of cover separately connected the solenoid-driven hydraulic press presses down work, and pressing down of the servo-actuated beam slab in lower end of support column inserted among the passage that opens wide; The moving beam slab of hydraulic press carries patrix and presses down, and upper die and lower die are closed, product molding, at this moment, but operator's both hands releasing lever, afterwards horizontal reset on the moving beam slab;
When resetting, resetting of the servo-actuated beam slab in lower end of support column extracted out from the passage of base, and slide block stops passage under the effect of spring closes and reset support column, and at this moment, the operator just frees hand to get the goods part of knocking off;
If operator's misoperation, the pull bar that only spurs a side is switched on the travel switch of this device of cover, because the effect of series circuit, the circuit of magnetic valve is obstructed, and then the moving beam slab of hydraulic press can not press down work;
Even hydraulic press generation systems machinery or apparatus failure, perhaps two travel switches that adhere to two these devices of cover separately simultaneously close contact weld normally closed continuous fault occur because often starting, the most extreme fortuitous events such as other maloperations perhaps occur because the operator is tired, be blocked in the top of base passages as long as wherein there is the slide block of this device of cover not pulled open, then being supported on the top of slide block with the corresponding support column of this passage stops moving beam slab to press down by force, make hydraulic press from the self-insurance state that is advanced into over-pressure self-discharging, guarantee operator's personal safety with this.
Above, by the mode by the two cover mechanical linkages that consist of of these devices and circuit series connection interlock, utilize the reliability of support column mechanical support, even in the situation that operator's personal safety has been guaranteed in the most extreme generation that also can avoid the tragedy accident.
Useful design is expanded
Travel switch normally closed moving that delay locked circuit and this device can be set in the control system of hydraulic press opens the contact and is connected, and to the fault pre-alarming of travel switch, and the locking magnetic valve stops and move beam slab and press down, to reduce unexpected superpressure to the damage of hydraulic press; For large hydraulic press, because the slide block of this device that matches with it is comparatively thick and heavy, can adopt in the back of slide block to connect a gravity reduction device that is consisted of by cable wire, pulley and pouring weight, substitute spring with this slide block is resetted.
Above-mentioned, the present invention adopts the device that is made of base, wallboard, press strip, slide block, pull bar, spring, prelocalization bar, rear backstay, travel switch, support column, be provided with the passage that inserts for support column in the base downwards, slide block can the front and back slip be arranged in the slideway that is surrounded by base, wallboard, press strip, the slide block of initial state stops the passage of base backward, travel switch is fixedly installed on the top of base and corresponding to the front of slide block, the front of slide block is provided with pull bar, and pull bar is provided with the spring that resets for slide block; During application, by two these devices of cover be separately positioned on extrusion die about two sides, wherein, base be fixed on hydraulic press lower beam slab above, support column be fixed on hydraulic press moving beam slab below, and the lower end of support column is positioned at the top corresponding with the passage of base; During work, after the operator places the progressive die tool with workpiece, must both hands respectively simultaneously pulling be positioned at extrusion die about two these devices of cover pull bar separately of two sides, make slip away the forward passage of base of separately slide block, and make separately slide block touch simultaneously separately travel switch, two travel switches that adhere to two these devices of cover separately press down work through the closed moving beam slab of connecting the solenoid-driven hydraulic press of series circuit, among the passage that presses down inserted base of the servo-actuated beam slab in lower end of support column; If only have the travel switch of this device of cover to be switched on, because the effect of series circuit, the circuit of magnetic valve is obstructed, and then the moving beam slab of hydraulic press can not press down work; If hydraulic press generation machinery or apparatus failure, if normally closed fault occurs because of welding in travel switch, or when because the operator is tired maloperation occuring, be blocked in the top of base passages as long as wherein there is the slide block of this device of cover not pulled open, then the support column corresponding with this passage moving beam slab of top prevention that is supported on slide block presses down, thereby guarantee the technical scheme of personal safety, having overcome prior art exists long-time running unreliable, be difficult to guarantee the problems and shortcomings of personal security, the anti-hand safety device of pressing of a kind of column support type hydraulic press that provides, pin down people's both hands by the mode by the two cover mechanical linkages that consist of of these devices and circuit series connection interlock, utilize the mechanical support of support column, the danger that moving beam slab presses down suddenly when stopping staff and not extracting out makes the anti-pressure hand safety device of hydraulic press reach long-time running reliable, guarantee the purpose of personal safety.
Description of drawings
Fig. 1 is the anti-structural representation of pressing the hand safety device of a kind of column support type hydraulic press of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 be among Fig. 5 A section draw enlarged drawing;
Fig. 4 is the anti-hand safety device of pressing of a kind of column support type hydraulic press of the present invention, is arranged in the front elevational schematic of using hydraulic press;
Fig. 5 is the side view of Fig. 4.
Below in conjunction with the embodiment in the accompanying drawing the present invention is described in further detail, but should not be construed as any limitation of the invention.
Among the figure: base 1, passage 11, upper platen 12, left board 121, right board 122, cylinder 13, base plate 14, wallboard 2, press strip 3, slide block 4, slideway 41, pull bar 5, spring 6, prelocalization bar 7, rear backstay 71, travel switch 8, support column 9, lower beam slab 01, moving beam slab 02, column 03, patrix 04, counterdie 05.
The specific embodiment
Consult Fig. 1～Fig. 5, the anti-hand safety device of pressing of a kind of column support type hydraulic press of the present invention, comprise base 1, wallboard 2, press strip 3, slide block 4, pull bar 5, spring 6, prelocalization bar 7, rear backstay 71, travel switch 8, support column 9, wherein: described base 1 is provided with the upper platen 12 of rectangle for top, the middle part is provided with the cylinder 13 of rectangle, the bottom is provided with the base plate 14 of rectangle, face and be I-shaped steel components, wherein, described cylinder 13 be positioned at described upper platen 12 left parts below, described cylinder 13 be positioned at described base plate 14 centers above; Be provided with along the vertical center line of described cylinder 13 and run through the manhole of base about in the of 1 and be called passage 11; The right of described upper platen 12 is fixed with steel plate protruding upward and is called right board 122, and the left side of described upper platen 12 is fixed with steel plate protruding upward and is called left board 121;
Described wallboard 2 is the steel components of rectangular plate-like;
Described press strip 3 is the steel components of rectangular slab strip;
Two wallboard 2 relative two limits, front and back that are fixedly connected on respectively above the described upper platen 12, article two, press strip 3 along the long limit of wallboard 2 be fixedly connected on respectively two blocks of wallboards 2 above, article two, press strip 3 between two blocks of relative wallboards 2 above the eaves bar that relatively stretches out of two of formation, so, on the described upper platen 12 of base 1, surrounded and be used for the slideway 41 that constraint guide runner 4 horizontally slips by two blocks of wallboards 2, two press strips 3;
Described slide block 4 is the steel components of rectangular block shape;
Described pull bar 5 is the shaft-like steel components of cylinder, and the right-hand member of pull bar 5 is provided with the handle of downward bending;
Described spring 6 is cylindroid helical-coil compression spring;
Described prelocalization bar 7 and rear backstay 71 are hexagon-headed bolt;
Described travel switch 8 closes and the normally closed moving electric touch switch of contact of opening for being provided with often to start;
Described support column 9 is cylindrical steel rods, and the upper end of support column 9 is provided with for be fixedly connected with the externally threaded cylinder step of being provided with of purposes with the moving beam slab 02 of hydraulic press;
The left part that slide block 4 slips are arranged in the described slideway 41 of base 1 stops described passage 11, pull bar 5 slides and is through in the through hole that arranges on the described right board 122, the left end of pull bar 5 is fixedly connected on the right side of slide block 4, and spring 6 is enclosed within on the pull bar 5 between the right side of slide block 4 and right board 122; Prelocalization bar 7 screws left and passes the internal thread hole that is arranged on the described right board 122 and be connected with right board 122, and the right bead that the left end of prelocalization bar 7 is positioned at described passage 11 meets with the right side of slide block 4 and contacts; Rear backstay 71 screws to the right and passes the internal thread hole that is arranged on the described left board 121 and be connected with left board 121, and the left bead that the right-hand member of rear backstay 71 is positioned at described passage 11 contacts with the left side of slide block 4; Travel switch 8 is positioned at the right above the described upper platen 12, and the right bead that the contact of travel switch 8 is positioned at described passage 11 meets with the right side of slide block 4 and contacts; The described base plate 14 of base 1 be fixed on hydraulic press lower beam slab 01 above, support column 9 be fixedly connected on downwards hydraulic press moving beam slab 02 below, the lower end correspondence of support column 9 is suspended in the top of the described passage 11 of base 1;
The direction face of structure representation is divided into up, down, left, right, front, rear side, wherein, the front by in the face of the face of statement main body, the back is the face relative with described front.
Operation principle and beneficial effect
This device is used description with the operation front of hydraulic press, for this reason, the left and right directions that structure is described for use rear the place ahead of describing to.
During application, two the cover these devices be separately positioned on extrusion die about two sides, adhere to separately two the cover these devices travel switch 8 often start close the contact by the series connection be connected with the control system of hydraulic press;
When pressing down work, after workpiece placed the progressive die tool, the operator must both hands respectively simultaneously pulling be positioned at extrusion die about two these devices of cover pull bar 5 separately of two sides, make two these devices of cover slide block 4 edge passages 11 separately separately touch simultaneously separately travel switch 8 to front slide, at this moment, because slipping away of slide block 4,11 pairs of support columns of the passage of base 19 open wide, the moving beam slab 02 that the control system of travel switch 8 closures by hydraulic press that adheres to two series connection of two these devices of cover separately connected the solenoid-driven hydraulic press presses down work, and pressing down of the servo-actuated beam slab 02 in the lower end of support column 9 inserted among the passage 11 that opens wide; The moving beam slab 02 of hydraulic press carries patrix 04 and presses down, patrix 04 and counterdie 05 closure, and product molding, at this moment, but operator's both hands releasing lever 5, afterwards horizontal reset on the moving beam slab 02;
When resetting, resetting of the servo-actuated beam slab 02 in the lower end of support column 9 extracted out from the passage 11 of base 1, and slide block 4 stops passage 11 under the effect of spring 6 closes and reset support column 9, and at this moment, the operator just frees hand to get the goods part of knocking off;
If operator's misoperation, the pull bar 5 that only spurs a side is switched on the travel switch 8 of this device of cover, because the effect of series circuit, the circuit of magnetic valve is obstructed, and then the moving beam slab 02 of hydraulic press can not press down work;
Even hydraulic press generation systems machinery or apparatus failure, perhaps two travel switches 8 that adhere to two these devices of cover separately close contact weld normally closed continuous fault occur because often starting simultaneously, the most extreme fortuitous events such as other maloperations perhaps occur because the operator is tired, be blocked in the top of base 1 passage 11 as long as wherein there is the slide block 4 of this device of cover not pulled open, then being supported on the top of slide block 4 with these passage 11 corresponding support columns 9 stops moving beam slab 02 to press down by force, make hydraulic press from the self-insurance state that is advanced into over-pressure self-discharging, guarantee operator's personal safety with this.
Above, by the mode by the two cover mechanical linkages that consist of of these devices and circuit series connection interlock, utilize the reliability of support column 9 mechanical support, even in the situation that operator's personal safety has been guaranteed in the most extreme generation that also can avoid the tragedy accident.
Useful design is expanded
Claims (1)
1. a column support type hydraulic press prevents pressing the hand safety device, comprise base (1), wallboard (2), press strip (3), slide block (4), pull bar (5), spring (6), prelocalization bar (7), rear backstay (71), travel switch (8), support column (9), it is characterized in that: described base (1) is provided with the upper platen (12) of rectangle for top, the middle part is provided with the cylinder (13) of rectangle, the bottom is provided with the base plate (14) of rectangle, face and be I-shaped steel components, wherein, described cylinder (13) be positioned at described upper platen (12) left part below, described cylinder (13) be positioned at described base plate (14) center above; Be provided with along the vertical center line of described cylinder (13) and run through base (1) manhole up and down and be called passage (11); The right of described upper platen (12) is fixed with steel plate protruding upward and is called right board (122), and the left side of described upper platen (12) is fixed with steel plate protruding upward and is called left board (121);
Described wallboard (2) is the steel components of rectangular plate-like;
Described press strip (3) is the steel components of rectangular slab strip;
Two blocks of wallboards (2) are fixedly connected on relatively respectively two limits, front and back above the described upper platen (12), article two, press strip (3) along the long limit of wallboard (2) be fixedly connected on respectively two blocks of wallboards (2) above, article two, press strip (3) between two blocks of relative wallboards (2) above the eaves bar that relatively stretches out of two of formation, so, by two blocks of wallboards (2), article two, press strip (3) has surrounded on the described upper platen (12) of base (1) and has been used for the slideway (41) that constraint guide runner (4) horizontally slips;
Described slide block (4) is the steel components of rectangular block shape;
Described pull bar (5) is the shaft-like steel components of cylinder, and the right-hand member of pull bar (5) is provided with the handle of downward bending;
Described spring (6) is cylindroid helical-coil compression spring;
Described prelocalization bar (7) and rear backstay (71) are hexagon-headed bolt;
Described travel switch (8) closes and the normally closed moving electric touch switch of contact of opening for being provided with often to start;
Described support column (9) is cylindrical steel rods, and the upper end of support column (9) is provided with for being fixedly connected with the externally threaded cylinder step of being provided with of purposes with the moving beam slab (02) of hydraulic press;
The left part that slide block (4) slip is arranged in the described slideway (41) of base (1) stops described passage (11), pull bar (5) slides and is through in the upper through hole that arranges of described right board (122), the left end of pull bar (5) is fixedly connected on the right side of slide block (4), and spring (6) is positioned between the right side of slide block (4) and the right board (122) and is enclosed within on the pull bar (5); Prelocalization bar (7) screws left and passes the internal thread hole that is arranged on the described right board (122) and be connected with right board (122), and the right bead that the left end of prelocalization bar (7) is positioned at described passage (11) meets with the right side of slide block (4) and contacts; Rear backstay (71) screws to the right and passes the internal thread hole that is arranged on the described left board (121) and be connected with left board (121), and the left bead that the right-hand member of rear backstay (71) is positioned at described passage (11) contacts with the left side of slide block (4); Travel switch (8) is positioned at the right above the described upper platen (12), and the right bead that the contact of travel switch (8) is positioned at described passage (11) meets with the right side of slide block (4) and contacts; The described base plate (14) of base (1) be fixed on hydraulic press lower beam slab (01) above, support column (9) be fixedly connected on downwards hydraulic press moving beam slab (02) below, the lower end correspondence of support column (9) is suspended in the top of the described passage (11) of base (1);
The direction face of structure representation is divided into up, down, left, right, front, rear side, wherein, the front by in the face of the face of statement main body, the back is the face relative with described front.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210437117.7A CN102921832B (en) | 2012-10-24 | 2012-10-24 | Support column type hand-pressing preventive safety device for hydraulic press |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210437117.7A CN102921832B (en) | 2012-10-24 | 2012-10-24 | Support column type hand-pressing preventive safety device for hydraulic press |
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| Publication Number | Publication Date |
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| CN102921832A true CN102921832A (en) | 2013-02-13 |
| CN102921832B CN102921832B (en) | 2014-10-22 |
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| CN201210437117.7A Active CN102921832B (en) | 2012-10-24 | 2012-10-24 | Support column type hand-pressing preventive safety device for hydraulic press |
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| CN105196459A (en) * | 2015-09-18 | 2015-12-30 | 常州市艾森塑料科技有限公司 | Security and protection type moulding press |
| CN108994209A (en) * | 2018-10-08 | 2018-12-14 | 陈克显 | A kind of hand punch dual security protection mechanism |
| CN109633214A (en) * | 2018-11-28 | 2019-04-16 | 惠州中京电子科技有限公司 | A method of ensureing wiring board electrical measurement process safety |
| CN113478002A (en) * | 2021-07-13 | 2021-10-08 | 章双凤 | Cutting equipment capable of realizing fixed-length cutting of workpiece |
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