CN218399330U

CN218399330U - Follow-up type material clearing safety platform

Info

Publication number: CN218399330U
Application number: CN202221711288.XU
Authority: CN
Inventors: 颜磊; 孙竹鑫; 金明
Original assignee: Ningbo Zhafir Plastics Machinery Co ltd
Current assignee: Ningbo Zhafir Plastics Machinery Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2023-01-31
Anticipated expiration: 2032-07-05

Abstract

The utility model relates to a safety pedal technical field discloses a clear material safety platform of trailing type, which comprises a bracket, the travel switch who sets up on the bracket, in travel switch top go up and down set up can with travel switch butt or the safety pedal that breaks away from and the spring pretension structure that sets up between bracket and safety pedal, be provided with the regulation structure of interval between regulation safety pedal and the travel switch between bracket and the safety pedal, the regulation structure includes the adjusting nut who sets up on the bracket, spacing hole that sets up on safety pedal, pass spacing hole and adjusting nut screw-fit's positioning bolt and the groove of dodging that supplies positioning bolt to pass that sets up on the bracket, be provided with between positioning bolt and the bracket and restrict the positioning bolt and break away from the pivoted locking structure that turns to that adjusting nut along positioning bolt breaks away from adjusting nut after the interval is adjusted between safety pedal and the travel switch, this clear material safety platform can restrict positioning bolt rotation not hard up, guarantee staff's operational safety.

Description

Follow-up type material clearing safety platform

Technical Field

The utility model relates to a safety pedal technical field specifically is a clear safe platform of expecting of trailing type.

Background

The lower part of the mold clamping area of the medium-large injection molding machine is provided with the operating platform with a fixed position, so that the mold can be conveniently maintained and replaced daily, the existing operating platform can realize the function of complete power failure of the injection molding machine after the operation platform is moved on a person stand, and the operation safety of a maintenance master is ensured.

Chinese patent with application number CN201920980421.3 discloses a horizontal correlation injection molding machine safety pedal device, including fixed car logo and activity car arm, be provided with well mould movable plate between fixed car logo and the activity car arm, the both sides of well mould movable plate are provided with safety pedal, four angles below the safety pedal still set up spring preloading device, spring preloading device includes the mount pad, be provided with the spring guide pillar on the mount pad, spring guide pillar overcoat is equipped with the spring, safety pedal is placed to the top of spring, safety pedal's top sets up the clamp plate, the one end and the mount pad of clamp plate pass through bolt fixed connection, be provided with detection switch in the safety pedal below on the mount pad.

This safety pedal device is behind the safety pedal on the staff stands, safety pedal triggers detection switch down, detection switch obtains the signal and makes the injection molding machine outage, the staff leaves the back, safety pedal goes upward under spring return spring force effect until after colliding the butt with the clamp plate, safety pedal is static and breaks away from with detection switch, but in long-term use, safety pedal constantly collides with the clamp plate, under the influence of moment of torsion, can lead to the bolt to rotate gradually for the mount pad, produce not hard up, lead to the pretension loss of spring, distance increase between safety pedal and the detection switch promptly, after leading to the staff to stand safety pedal, safety pedal can't trigger detection switch, unable timely outage, make the staff position extremely dangerous situation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clear safe platform of expecting of trailing type, restriction positioning bolt is rotatory not hard up, guarantees staff's operation safety.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a clear material safety platform of trailing type, which comprises a bracket, the travel switch who sets up on the bracket, go up and down the safety pedal that sets up and break away from with travel switch when descending with travel switch butt or rise and the spring pretension structure that sets up between bracket and safety pedal in the travel switch top, be provided with the regulation structure of adjusting the interval between safety pedal and the travel switch between bracket and the safety pedal, the regulation structure includes the adjusting nut who fixedly sets up on the bracket, the spacing hole that sets up on the safety pedal, pass spacing hole and adjusting nut screw-thread fit's positioning bolt and the groove of dodging that supplies positioning bolt to pass that sets up on the bracket, be provided with between positioning bolt and the bracket and restrict positioning bolt and break away from the locking structure of turning to the pivoted that adjusting nut along positioning bolt breaks away from adjusting nut for adjusting nut after the interval adjustment between safety pedal and the travel switch is accomplished.

By adopting the scheme, compared with the situation that the safety pedal continuously collides with the pressing plate in the prior art, under the influence of torque, the bolt can be caused to gradually rotate relative to the mounting seat, the looseness is generated, the pre-tightening loss of the spring is caused, namely, the distance between the safety pedal and the detection switch is increased, after a worker stands on the safety pedal, the safety pedal cannot trigger the detection switch, and the power can not be cut off in time, so that the worker can be in a dangerous situation, in the scheme, the injection molding machine can be powered off by additionally arranging the locking structure and rotating the positioning bolt to adjust the distance between the safety pedal and the travel switch, therefore, when the safety pedal descends to abut against the travel switch, the lowest weight borne by the safety pedal can be determined, as long as the weight of the worker exceeds the weight, the adjustment of the injection molding machine can be carried out, after the adjustment is completed, the positioning bolt is limited by the locking structure to rotate along the direction of the positioning bolt to be separated from the adjusting nut, the operation safety of the worker, after the worker stands on the safety pedal, the safety pedal downwards triggers the travel switch by the safety pedal, the safety pedal to cut off the power of the injection molding machine, and the safety pedal is cut off after the worker leaves the worker, and the safety pedal is driven by the spring pre-tightening structure, and the safety pedal is separated from the travel switch.

Furthermore, the locking structure includes the non-circular inserted block that sets up and be used for restricting the inserted block to break away from adjusting nut's the pivoted limit structure that turns to along positioning bolt on positioning bolt keeps away from the one end of safety pedal, and spacing hole, adjusting nut and dodge the groove and can supply the inserted block to pass.

By adopting the scheme, the insert block is set to be non-circular, the insert block is prevented from rotating through the limiting structure, and the positioning bolt can be limited from rotating relative to the adjusting nut along the direction that the positioning bolt is separated from the adjusting nut.

Further, limit structure includes the installation piece, rotate the stopper that sets up on the installation piece and the spacing groove that supplies the inserted block to insert or extract that the top surface was concave to be established on the stopper, the spacing groove is the same with the inserted block shape and the inner wall of spacing groove can laminate or clearance fit with the outer wall of inserted block, be provided with between stopper and the installation piece and restrict the stopper and break away from adjusting nut along positioning bolt turn to pivoted one-way revolution mechanic, be provided with the location structure that restriction inserted block and spacing groove break away from between installation piece and the bracket.

Adopt above-mentioned scheme, because the inner wall that spacing groove and inserted block shape are the same and the spacing groove and the outer wall laminating or clearance fit of inserted block, and the shape distribution of inserted block can't be judged when positioning bolt is finally static, consequently need rotate the stopper earlier, adjust the spacing groove, can insert the spacing groove until the inserted block, remove the installation piece and make it be close to the inserted block, insert the spacing inslot until the inserted block, rethread location structure is fixed in the installation piece on the bracket, because one-way revolution mechanic's existence, the restriction stopper breaks away from adjusting nut's the rotation that turns to along positioning bolt, can restrict the inserted block and rotate, thereby restriction positioning bolt rotates.

Furthermore, the unidirectional rotation structure comprises a rotating shaft which is rotatably arranged on the mounting block and one end of which is connected with the limiting block, and a ratchet and pawl device which is arranged on the rotating shaft and controls the limiting block to rotate in a unidirectional mode, wherein the ratchet and pawl device comprises a ratchet which is concentrically arranged with the rotating shaft and a pawl which is arranged on the mounting block and controls the ratchet to rotate in a unidirectional mode in a swinging mode.

By adopting the scheme, the ratchet wheel can only rotate along one direction due to the unidirectional swing of the pawl, namely the ratchet wheel can rotate along the steering direction of the positioning bolt screwed into the adjusting nut but can not rotate along the steering direction of the positioning bolt separated from the adjusting nut.

Furthermore, the positioning structure comprises a positioning block fixedly arranged on the bracket, a through hole arranged on the positioning block, a threaded hole arranged on the mounting block and a locking bolt which penetrates through the through hole and then is in threaded fit with the threaded hole.

By adopting the scheme, after the insert block is inserted into the limiting groove, the adjusting threaded hole is opposite to the through hole, the locking bolt passes through the through hole and then is meshed with the threaded hole in a threaded manner, and the mounting block is fixed on the positioning block.

Furthermore, at least one through hole is formed in the positioning block at intervals along the axial direction of the positioning bolt.

By adopting the scheme, because the distance between the safety pedal and the travel switch is different, the length of the positioning bolt passing through the avoiding groove is different, the distance between the mounting block and the bracket is adjusted when the mounting block is fixed on the positioning block by arranging a plurality of through holes, and the positioning bolt is adapted to expose different lengths of the avoiding groove.

Furthermore, the spring pre-tightening structure comprises a guide pillar arranged on the bracket, a supporting spring which is sleeved outside the guide pillar and is respectively abutted against the bracket and the safety pedal at two ends, and a slot which is arranged on the safety pedal and is used for the guide pillar to move.

By adopting the scheme, the safety pedal descends, the supporting spring is extruded to generate elastic force, when a worker leaves the safety pedal, the safety pedal moves upwards under the action of the reset elastic force of the supporting spring until the safety pedal is collided and abutted with the positioning bolt and is separated from the travel switch, the elastic force of the supporting spring is equal to the gravity of the safety pedal and the downward resistance given to the safety pedal by the positioning bolt, and the safety pedal keeps in a static state.

Further, safety pedal includes the frame of stepping on and in the skid resistant pedal who sets up on the frame of stepping on, and spacing hole and slot set up on the frame of stepping on, supporting spring with step on the frame butt.

Adopt above-mentioned scheme, avoid the staff to fall down through setting up anti-skidding footboard, further promote the security.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: add the locking structure, because the inserted block non-circular sets up, therefore the shape distribution of inserted block can't be judged when positioning bolt is finally static, rotate stopper regulation spacing groove to inserted block and can insert the spacing groove, remove the installation piece and make it be close to the inserted block, insert the spacing inslot until the inserted block, rethread locking bolt and screw hole interlock are fixed in the bracket with the installation piece on, because ratchet pawl device's existence, the restriction stopper breaks away from adjusting nut's the rotation that turns to along positioning bolt, can restrict the inserted block and rotate, thereby restriction positioning bolt breaks away from adjusting nut's the rotation that turns to along positioning bolt for adjusting nut, avoid the increase of distance between safety pedal and the travel switch, thereby guarantee staff's operation safety.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is an isometric view of a follower type material removal safety platform according to an embodiment;

FIG. 2 is a front view of a follow-up material cleaning safety platform in the embodiment;

FIG. 3 isbase:Sub>A cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is an exploded view of a follower type material removal safety platform according to an embodiment;

FIG. 6 is an enlarged view at C in FIG. 5;

FIG. 7 is an enlarged view at D in FIG. 5;

FIG. 8 is an isometric view of a follower purge safety platform mounted on an injection molding machine in accordance with an embodiment.

In the figure: 1. a bracket; 2. a travel switch; 3. a safety pedal; 301. a step frame; 302. an anti-skid pedal; 4. adjusting the nut; 5. a limiting hole; 6. positioning a bolt; 7. an avoidance groove; 8. inserting a block; 9. mounting blocks; 10. a limiting block; 11. a limiting groove; 12. a rotating shaft; 13. a ratchet wheel; 14. a pawl; 15. positioning a block; 16. a through hole; 17. a threaded hole; 18. locking the bolt; 19. a guide post; 20. a support spring; 21. inserting slots; 22. a base.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Examples

The utility model provides a clear material safety platform of trailing type, refer to fig. 1 to 8, including injection molding machine and clear material safety platform, be provided with base 22 on the injection molding machine and be used for installing clear material safety platform, clear material safety platform includes bracket 1, be provided with travel switch 2 on the bracket 1, the lift is provided with a safety pedal 3 above travel switch 2, safety pedal 3 includes step 301 and the skid-proof pedal 302 that sets up on step 301, avoid the staff to stand after going to slip, promote the security, step 301 and skid-proof pedal 302 carry out fixed connection through the bolt nut, this connected mode is prior art, do not do repeated here, after the staff stands on skid-proof pedal 302, skid-proof pedal 302 descends with step 301 together, step 301 and travel switch 2 butt, trigger travel switch 2 makes the power-off of injection molding machine, this control mode is prior art, do not give unnecessary details here, be provided with the pretension structure between bracket 1 and step 301, after the staff leaves skid-proof pedal 302, the safety pedal 3 rises by the pretension structure of spring, make and drive frame 301 break away from with travel switch 2.

Spring pretension structure includes the guide pillar 19 that sets up on bracket 1, the outside cover of guide pillar 19 is equipped with a supporting spring 20, supporting spring 20's both ends respectively with bracket 1 and step 301 butt, safety pedal 3 descends, supporting spring 20 receives the extrusion and produces elasticity, when the staff leaves safety pedal 3, safety pedal 3 goes upward under supporting spring 20 elasticity effect that resets and breaks away from with travel switch 2, still be provided with slot 21 on step 301, when step 301 is down, slot 21 supplies guide pillar 19 to insert, avoid guide pillar 19 and step 301 butt to lead to safety pedal 3 can't descend smoothly.

An adjusting structure is arranged between the bracket 1 and the safety pedal 3 and is used for adjusting the distance between the pedal frame 301 and the travel switch 2, thereby determining the lowest weight which can be born on the safety pedal 3 when the safety pedal 3 descends to abut against the travel switch 2, and the power of the injection molding machine can be cut off as long as the weight of a worker exceeds the weight, in the embodiment, the power of the injection molding machine can be cut off when the safety pedal 3 is adjusted to bear the lowest weight of 30Kg, the adjusting structure comprises an adjusting nut 4 which is fixedly arranged on the bracket 1, a limit hole 5 is arranged on the pedal frame 301, a positioning bolt 6 passes through the limit hole 5 and then is in threaded fit with the adjusting nut 4, an avoiding groove 7 for the positioning bolt 6 to pass through is also arranged on the bracket 1, through rotating positioning bolt 6, can make positioning bolt 6's head be close to or keep away from adjusting nut 4, can order about pedal frame 301 to be close to or keep away from travel switch 2, and under supporting spring 20's holding power effect, supporting spring 20's elasticity equals the gravity of safety footboard 3 and positioning bolt 6 gives safety footboard 3 decurrent resistance, safety footboard 3 keeps quiescent condition, thereby realize the interval between safety footboard 3 and the travel switch 2 and adjust, travel switch 2 in the embodiment, spring pretension structure and regulation structure are provided with 4 groups, set up respectively on 4 angles of bracket 1, make the staff stand in the optional position of clear material safety platform all can make the injection molding machine outage, further promote the security performance.

After the distance between the safety pedal 3 and the travel switch 2 is adjusted, in order to avoid the positioning bolt 6 from rotating along the steering direction of the positioning bolt 6 away from the adjusting nut 4 in the process of continuous upward impact of the safety pedal 3, a locking structure is arranged between the positioning bolt 6 and the bracket 1, the locking structure comprises an insertion block 8 arranged at one end of the positioning bolt 6 away from the safety pedal 3, a limiting hole 5, the adjusting nut 4 and an avoiding groove 7 can be penetrated by the insertion block 8, so that the positioning bolt 6 can be smoothly in threaded connection with the adjusting nut 4, the safety pedal device further comprises an installation block 9, a limiting block 10 is arranged on the installation block 9, a limiting groove 11 is concavely arranged on the top surface of the limiting block 10, the shape of the limiting groove 11 is the same as that of the insertion block 8, the insertion block 8 can be inserted or pulled out, and when the insertion block 8 is inserted into the limiting groove 11, the inner wall of the limiting groove 11 is attached to or in clearance fit with the outer wall of the insertion block 8, the insert block 8 is arranged in a non-circular shape, so long as the insert block 8 is inserted into the limit groove 11, and the mounting block 9 is fixed on the bracket 1, the limit block 10 is ensured not to rotate along the direction that the positioning bolt 6 is separated from the adjusting nut 4, the positioning bolt 6 can be ensured not to rotate along the direction that the positioning bolt 6 is separated from the adjusting nut 4, the mounting block 9 is fixed on the bracket 1 through the positioning structure, the positioning structure comprises a positioning block 15 fixedly arranged on the bracket 1, a through hole 16 is arranged on the positioning block 15, a threaded hole 17 is arranged on the mounting block 9, after the insert block 8 is inserted into the limit groove 11, the adjusting threaded hole 17 is right opposite to the through hole 16, a locking bolt 18 passes through the through hole 16 and then is meshed with the threaded hole 17, the mounting block 9 is fixed on the positioning block 15, because the distance between the safety pedal 3 and the travel switch 2 is different, the length of the positioning bolt 6 passing through the avoiding groove 7 is different, therefore, at least one through hole 16 is formed in the positioning block 15 at intervals along the axial direction of the positioning bolt 6, the distance between the mounting block 9 and the bracket 1 when the mounting block 9 is fixed on the positioning block 15 can be adjusted, and the positioning bolt 6 is suitable for exposing different lengths of the avoiding groove 7.

In addition, because the shape distribution of the insert block 8 can not be judged when the positioning bolt 6 is finally static, the limit block 10 needs to be rotated, the limit groove 11 needs to be adjusted until the insert block 8 can be inserted into the limit groove 11, so that the limit block 10 can rotate along the steering direction of the positioning bolt 6 screwed into the adjusting nut 4 and can not rotate along the steering direction of the positioning bolt 6 separated from the adjusting nut 4, therefore, a unidirectional rotation structure is arranged between the limit block 10 and the mounting block 9, the unidirectional rotation structure comprises a rotating shaft 12 which is rotatably arranged on the mounting block 9, one end of the rotating shaft 12 is inserted into the mounting block 9 and can rotate through a bearing, the other end of the rotating shaft is connected with the bottom of the limit block 10, a ratchet wheel 13 and a pawl 14 device which are used for controlling the unidirectional rotation of the limit block 10 are arranged on the rotating shaft 12, the ratchet wheel 13 and the pawl 14 device comprise a ratchet wheel 13 which is concentric with the rotating shaft 12, a unidirectional swinging pawl 14 is arranged on the mounting block 9, the control ratchet wheel 13 can rotate along the steering direction of the positioning bolt 6 screwed into the adjusting nut 4 and can not rotate along the steering direction of the positioning bolt 6 separated from the adjusting nut 4, thereby ensuring that the insert block 8 can not be separated from the adjusting nut 4 along the rotation of the positioning bolt 6 after being inserted into the limit groove 11.

After the distance between the safety pedal 3 and the travel switch 2 is adjusted, the positioning bolt 6 is static relative to the bracket 1, at the moment, the insert block 8 is non-circular, and the final shape distribution cannot be judged, so that the limiting block 10 is rotated along the rotation direction of screwing the positioning bolt 6 into the adjusting nut 4, the ratchet 13 rotates along with the rotation direction, the pawl 14 swings in a single direction until the shape distribution of the limiting groove 11 is adjusted to be consistent with that of the insert block 8, the limiting groove 11 can be inserted into the insert block 8, due to the existence of the ratchet 13 and the pawl 14, the limiting block 10 cannot rotate along the rotation direction of disengaging the positioning bolt 6 from the adjusting nut 4, the mounting block 9 is close to the bracket 1 until the insert block 8 is inserted into the limiting groove 11, the position of the mounting block 9 is adjusted to enable the threaded hole 17 to be opposite to the through hole 16, the screwing-in locking bolt 18 fixes the mounting block 9 on the bracket 1, the insert block 8 is ensured to be in penetrating fit with the limiting groove 11, and the rotation direction that the insert block 8 and the positioning bolt 6 disengage from the adjusting nut 4 along the positioning bolt 6 is limited.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a clear safe platform of expecting of trailing type, includes bracket (1), travel switch (2) that set up on bracket (1), go up and down when the decline that sets up with travel switch (2) butt or rise with travel switch (2) when the safe footboard (3) that break away from and the spring pretension structure that sets up between bracket (1) and safe footboard (3) when going up and down, its characterized in that: an adjusting structure for adjusting the distance between the safety pedal (3) and the travel switch (2) is arranged between the bracket (1) and the safety pedal (3), the adjusting structure comprises an adjusting nut (4) fixedly arranged on the bracket (1), a limiting hole (5) arranged on the safety pedal (3), a positioning bolt (6) penetrating through the limiting hole (5) and in threaded fit with the adjusting nut (4) and an avoiding groove (7) arranged on the bracket (1) and allowing the positioning bolt (6) to penetrate through, and a locking structure which limits the positioning bolt (6) to be separated from the adjusting nut (4) along the positioning bolt (6) after the distance between the safety pedal (3) and the travel switch (2) is adjusted is arranged between the positioning bolt (6) and the bracket (1) and rotates in a steering mode relative to the adjusting nut (4) is arranged between the safety pedal (3) and the travel switch (2).

2. A follow-up material cleaning safety platform according to claim 1, wherein: the locking structure comprises a non-circular insert block (8) arranged at one end, far away from the safety pedal (3), of the positioning bolt (6) and a limiting structure used for limiting the insert block (8) to rotate along the direction that the positioning bolt (6) is separated from the adjusting nut (4), and the limiting hole (5), the adjusting nut (4) and the avoiding groove (7) can be used for the insert block (8) to penetrate through.

3. A follow-up material cleaning safety platform according to claim 2, wherein: limiting structure is including installation piece (9), rotate stopper (10) that sets up on installation piece (9) and supply inserted block (8) to insert or extract spacing groove (11) that the concave setting of top surface was gone up in stopper (10), spacing groove (11) and inserted block (8) shape the same and the inner wall of spacing groove (11) can laminate or clearance fit with the outer wall of inserted block (8), be provided with between stopper (10) and installation piece (9) and restrict stopper (10) and break away from the one-way revolution mechanic that turns to pivoted of adjusting nut (4) along positioning bolt (6), be provided with the location structure that restriction inserted block (8) and spacing groove (11) break away from between installation piece (9) and bracket (1).

4. A follow-up material cleaning safety platform according to claim 3, wherein: the unidirectional rotation structure comprises a rotating shaft (12) which is rotatably arranged on the mounting block (9) and one end of which is connected with the limiting block (10), and a ratchet wheel (13) and pawl (14) device which is arranged on the rotating shaft (12) and controls the limiting block (10) to rotate in a unidirectional mode, wherein the ratchet wheel (13) and pawl (14) device comprises a ratchet wheel (13) which is concentrically arranged with the rotating shaft (12) and a pawl (14) which is arranged on the mounting block (9) and controls the ratchet wheel (13) to rotate in a unidirectional mode in a swinging mode.

5. A follow-up material cleaning safety platform according to claim 3, characterized in that: the positioning structure comprises a positioning block (15) fixedly arranged on the bracket (1), a through hole (16) arranged on the positioning block (15), a threaded hole (17) arranged on the mounting block (9) and a locking bolt (18) which penetrates through the through hole (16) and then is in threaded fit with the threaded hole (17).

6. A follow-up material cleaning safety platform according to claim 5, wherein: at least one through hole (16) is arranged on the positioning block (15) along the axial direction of the positioning bolt (6) at intervals.

7. A follow-up material cleaning safety platform according to claim 1, wherein: the spring pre-tightening structure comprises a guide post (19) arranged on the bracket (1), a supporting spring (20) which is sleeved outside the guide post (19) and of which two ends are respectively abutted against the bracket (1) and the safety pedal (3), and a slot (21) which is arranged on the safety pedal (3) and is used for the guide post (19) to move.

8. The follow-up material cleaning safety platform as claimed in claim 7, wherein: safety pedal (3) are including step frame (301) and anti-skidding footboard (302) of setting on step frame (301), and spacing hole (5) and slot (21) set up on step frame (301), and supporting spring (20) and step frame (301) butt.