CN108941370B

CN108941370B - A prevent briquetting safety device and stamping equipment that falls for stamping equipment

Info

Publication number: CN108941370B
Application number: CN201810923677.0A
Authority: CN
Inventors: 周捷; 白小龙; 钟自强; 刘宇鹏; 林重; 贾骏
Original assignee: AECC South Industry Co Ltd
Current assignee: AECC South Industry Co Ltd
Priority date: 2018-08-14
Filing date: 2018-08-14
Publication date: 2020-04-07
Anticipated expiration: 2038-08-14
Also published as: CN108941370A

Abstract

The invention discloses a safety device for preventing a pressure block from falling for stamping equipment and the stamping equipment, wherein the safety device comprises: the holding and clamping unit is used for rotatably holding and clamping the upright post of the stamping equipment; the supporting unit is fixedly connected to the first side of the clamping unit and rotates along with the clamping unit, the supporting unit comprises a supporting bracket fixedly connected to one side of the clamping unit and a supporting body connected with the supporting bracket, and when the supporting unit rotates along with the clamping unit to a position below a pressing block of the stamping equipment, the top end of the supporting body is used for supporting the pressing block when the pressing block falls; and the auxiliary control unit is arranged on the second side of the holding and clamping unit and comprises a switching mechanism which is fixedly installed on a platform of the stamping equipment and is used for being connected with a system power supply of the stamping equipment and a sensing mechanism which is fixedly installed on the holding and clamping unit, wherein the sensing mechanism enables the switching mechanism to be in a closed state when rotating to a first position along with the holding and clamping unit and enables the switching mechanism to be in an open state when rotating to a second position.

Description

A prevent briquetting safety device and stamping equipment that falls for stamping equipment

Technical Field

The invention relates to the field of stamping equipment, in particular to a safety device for preventing a pressing block from falling for the stamping equipment and the stamping equipment.

Background

Stamping equipment such as an oil press is widely applied to the field of metal part stamping forming, the stamping degree of the stamping equipment reaches several tons or even tens of tons, serious consequences can be caused when safety accidents occur, and the safe operation of the equipment is particularly important.

The safety device of the existing oil press mainly depends on two hands to operate two start keys simultaneously, so that an operator is prevented from being injured by the oil press when the oil press works. The safety device has the limitation that the oil press can play a good safety role during working, but the safety device cannot be used for people and machine accidents caused by accidental falling and pressing of a press block unit of the oil press during stopping of the oil press, such as maintenance and repair operations.

Disclosure of Invention

The invention provides a pressing block falling prevention safety device for a stamping device and the stamping device, and aims to solve the technical problem that when the stamping device is stopped, a pressing block accidentally falls to cause human and machine safety accidents.

The technical scheme adopted by the invention is as follows:

in one aspect, the present invention provides a safety device for preventing a pressure block from falling for a stamping apparatus, including: the holding and clamping unit is used for rotatably holding and clamping the upright post of the stamping equipment; the supporting unit is fixedly connected to the first side of the clamping unit and rotates along with the clamping unit, the supporting unit comprises a supporting bracket fixedly connected to one side of the clamping unit and a supporting body connected with the supporting bracket, and when the supporting unit rotates along with the clamping unit to a position below a pressing block of the stamping equipment, the top end of the supporting body is used for supporting the pressing block when the pressing block falls; and the auxiliary control unit is arranged on the second side of the holding and clamping unit and comprises a switching mechanism which is fixedly installed on a platform of the stamping equipment and is used for being connected with a system power supply of the stamping equipment and a sensing mechanism which is fixedly installed on the holding and clamping unit, wherein the sensing mechanism enables the switching mechanism to be in a closed state when rotating to a first position along with the holding and clamping unit and enables the switching mechanism to be in an open state when rotating to a second position.

Preferably, the clamping unit comprises two first clamping plates fixedly connected with each other, and the inner sides of the first clamping plates are provided with universal balls or rollers matched with the stand columns in a rolling manner.

Preferably, the supporting bracket comprises a fixing plate fixedly connected to one side of the holding and clamping unit, the upper end of the fixing plate is connected with a transverse plate extending in the direction far away from the holding and clamping unit, and the transverse plate is provided with a through hole; the through-hole is worn to locate in the supporter activity, and the top of supporter is provided with the last supporting pad that is used for supporting the briquetting that falls down, and the supporter bottom is provided with and is used for following the supporter gliding in order to support the lower support pad on stamping equipment's platform when the briquetting is suppressed in last supporting pad.

Preferably, the supporter includes that the activity wears to locate the lower stay tube of through-hole and pegs graft in the upper stay tube on lower stay tube upper portion, goes up the supporting pad and connects in the upper stay tube top, and the lower stay pad is connected in the lower stay tube bottom.

Preferably, the lower support tube is of a hollow structure, the upper support tube is inserted into the lower support tube, at least one first positioning hole penetrates through one of the upper part of the lower support tube and the lower support tube, and a plurality of second positioning holes with different heights penetrate through the other one of the upper part of the lower support tube and the lower support tube; the height of the upper supporting pad is adjusted by a first stop penetrating rod correspondingly inserted into the first positioning hole and one of the second positioning holes between the upper supporting tube and the lower supporting tube.

Preferably, a plurality of third positioning holes with different heights are arranged on the lower supporting tube in a penetrating manner, and the third positioning holes are all positioned above the transverse plate; the supporting body also comprises a second stop penetrating rod selectively inserted into one of the third positioning holes for adjusting the height of the lower supporting pad from the platform; and the outer side of the lower supporting tube is provided with an elastic part of which two ends are respectively and elastically abutted against the second stop penetrating rod and the transverse plate.

Preferably, the upper support tube is hollow, and the upper support pad is assembled at the top of the upper support tube in an interference fit manner; the lower supporting pad is assembled at the bottom of the lower supporting pipe in an interference fit manner.

Preferably, the sensing mechanism comprises a sensing rotating wheel, and the sensing rotating wheel is fixedly arranged on the outer side of the holding and clamping unit through a sensing wheel frame and is arranged opposite to the supporting unit; the switch mechanism is a travel switch arranged on a lower supporting plate fixedly arranged on the platform, the travel switch is provided with a contact with an elastic reset function, the contact is positioned on a rotating path of the sensing rotating wheel, and the sensing rotating wheel touches or leaves the contact when rotating along with the holding and clamping unit, so that the travel switch is in a closed or on state.

Preferably, the auxiliary control unit further comprises two second clamping plates which are connected with the lower supporting plate and fixedly clamped on the stand column, and the top parts of the second clamping plates are respectively provided with an upper supporting plate supported on the bottom surface of the clamping unit; and a stop block used for limiting the optional installation angle of the holding and clamping unit is upwards protruded on the lower supporting plate.

According to another aspect of the invention, the stamping equipment comprises a platform, wherein an upright post is arranged on the platform, a pressing block which moves back and forth along the upright post is connected to the upper portion of the upright post in a sliding mode, the upright post is provided with the pressing block falling prevention safety device, and the supporting unit rotates along with the clamping unit to move between a region below the pressing block and a region except the region below the pressing block.

The invention has the following beneficial effects: the invention clamps on the upright post of the stamping device through the rotation of the clamping unit, pushes the supporting unit to rotate when the stamping device is stopped, so that the top end of the supporting body can support the pressing block which falls down when the supporting unit rotates to the position below the pressing block, the invention does not need to change the structure of the stamping device, the anti-falling safety device of the pressing block can be directly arranged on the stamping device, the pressing block which falls down accidentally can be supported when the stamping device is stopped in a simple structure and mode, thereby effectively preventing the safety accidents of people and machines, the anti-falling safety device of the pressing block can normally work on the stamping device with a severe working environment and a stamping workshop, the operation is simple, convenient and practical, the invention realizes the on-off control of the switching mechanism through the position change of the sensing mechanism in the auxiliary control unit along with the rotation of the clamping unit, and further can conveniently control the system power supply of the stamping device, prevent the briquetting and produce the tenesmus because of artifical or unexpected start-up stamping equipment.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a preferred embodiment of a pressure block fall prevention safety device of the present invention;

FIG. 2 is a schematic view of the crush pad fall prevention safety of FIG. 1 from another angle;

FIG. 3 is a top plan view of the crush block fall prevention safety of FIG. 1;

fig. 4 is a sectional view taken along a-a in fig. 3.

The reference numbers illustrate:

1. a clamping unit; 10. a first holding clamp plate; 11. a universal ball;

2. a support unit; 20. a support bracket; 201. a fixing plate; 202. a transverse plate; 203. a through hole; 204. a reinforcing plate; 21. a support body; 211. an upper support pad; 212. a lower support pad; 213. a lower support tube; 214. an upper support tube; 215. a first positioning hole; 216. a second positioning hole; 217. a first stop penetrating rod; 2130. a third positioning hole; 218. a second stop penetrating rod; 219. an elastic member;

3. an auxiliary control unit; 30. a lower support plate; 31. a travel switch; 310. a contact; 32. a sensing wheel; 33. a second holding clamp plate; 34. an upper support plate; 35. a stopper block; 36. a sensing wheel carrier; 360. a substrate; 361. an extension plate; 362. and a reinforcing plate.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The invention provides a safety device for preventing a pressing block from falling, which is used for stamping equipment such as an oil press or a stamping machine and the like to prevent the pressing block from accidentally falling when the equipment is stopped.

Referring to fig. 1 to 4, a safety device for preventing a dropping of a pad according to a preferred embodiment of the present invention is used for an oil press, including: the holding and clamping unit 1 is used for rotatably holding and clamping an upright post of the stamping equipment; the supporting unit 2 is fixedly connected to one side of the holding and clamping unit 1 and rotates along with the holding and clamping unit 1, wherein the supporting unit 2 comprises a supporting bracket 20 fixedly connected to the first side of the holding and clamping unit 1 and a supporting body 21 connected with the supporting bracket 20, and when the supporting unit 2 rotates along with the holding and clamping unit 1 to a position below a pressing block of the punching equipment, the top end of the supporting body 21 is used for supporting the pressing block when the pressing block falls; and the auxiliary control unit 3 is arranged at the second side of the holding and clamping unit 1 and comprises a switching mechanism which is fixedly installed on a platform of the stamping equipment and is used for being connected with a system power supply of the stamping equipment and a sensing mechanism which is fixedly installed on the holding and clamping unit 1, wherein the sensing mechanism enables the switching mechanism to be in a closed state when rotating to a first position along with the holding and clamping unit 1, and enables the switching mechanism to be in an open state when rotating to a second position. According to the invention, the clamping unit 1 is rotationally clamped on the upright post of the stamping equipment, and the supporting unit 2 is pushed to rotate in the shutdown state of the stamping equipment, so that when the supporting unit 2 rotates to the position below the pressing block, the top end of the supporting body 21 can support the pressing block which falls. According to the invention, the on-off control of the switch mechanism is realized through the position change of the sensing mechanism in the auxiliary control unit along with the rotation of the clamping unit, so that the system power supply of the punching equipment can be conveniently controlled, and the pressing block is prevented from falling caused by the manual or accidental starting of the punching equipment.

Optionally, the clamping unit 1 includes two first clamping plates 10 fixedly connected to each other, and the inner side of the first clamping plate 10 is provided with a universal ball 11 or a roller for rolling-fitting with the column. In the preferred embodiment, the two first clamping plates 10 of the clamping unit 1 are locked, installed and fixed together by bolts and nuts, and a space for accommodating the upright is defined between the two clamping plates. Every is all installed two bull's eye bearings in inboard on embracing splint 10 and is universal ball 11, and four bull's eye bearings symmetry set up for carry out nimble rotary motion around the stand. The rotary clamping with the upright post can be realized by adopting the eyelet bearing and the clamping plate in the preferred embodiment, the structure is very simple, and the connection is reliable; in addition, the structure of the upright post of the stamping equipment does not need to be changed in the mode, and the original structure, function and strength of the upright post are kept. Of course, in other embodiments, a rubber roller may be disposed on the first clamping plate 10 to realize the rotational connection with the upright.

The supporting bracket 20 is a connecting part of the supporting unit 2 and the clasping unit 1, and mainly plays a role in connecting and supporting. Further, the support bracket 20 includes a fixing plate 201 fixedly connected to one side of the clasping unit 1, the upper end of the fixing plate 201 is connected with a transverse plate 202 extending in a direction away from the clasping unit 1, and a through hole 203 is formed in the transverse plate 202. In the preferred embodiment, the fixing plate 201 is vertical, has a screw hole, and is locked to the outer side of one of the first clamping plates 10 by a screw and a nut. The transverse plate 202 is fixedly connected to the top end of the fixing plate 201, and can be connected through glue or fixed through screws or clamping. Optionally, a reinforcing plate 204 is further connected between the fixing plate 201 and the transverse plate 202, the reinforcing plate 204 is substantially triangular, the plate surfaces of the reinforcing plate 204 are perpendicular to the fixing plate 201 and the transverse plate 202, and two plate edges are fixedly connected to the fixing plate 201 and the transverse plate 202 respectively for reinforcing the connection therebetween and further supporting the transverse plate 202.

In the preferred embodiment, the supporting body 21 is movably disposed through the through hole 203, the top end of the supporting body 21 is provided with an upper supporting pad 211 for supporting a downward pressing block, and the bottom end of the supporting body 21 is provided with a lower supporting pad 212 for sliding down with the supporting body 21 when the pressing block is pressed on the upper supporting pad 211 so as to be supported on a platform of the punching device. According to the invention, the support body 21 is movably connected to the through hole 203 of the transverse plate 202, when the pressing block does not fall, a gap is formed between the lower support pad 212 at the bottom end of the support body 21 and the platform, so that the support body 21 can flexibly rotate along with the holding and clamping unit 1; when the pressing block falls down and presses the upper supporting pad 211, the lower supporting pad 212 slides down along with the supporting body 21 in the through hole 203 to be supported on the platform, and the pressing force of the pressing block on the supporting body 21 is transmitted to the platform through the supporting body 21, so that the pressing block is stably supported.

Further, the support body 21 includes a lower support tube 213 movably disposed through the through hole 203 and an upper support tube 214 inserted into the upper portion of the lower support tube 213, the upper support pad 211 is connected to the top of the upper support tube 214, and the lower support pad 212 is connected to the bottom of the lower support tube 213. Specifically, in the preferred embodiment, the upper support tube 214 is hollow, and the upper support pad 211 is assembled on the top of the upper support tube 214 in an interference fit manner. The lower support tube 213 is also hollow, and the lower support pad 212 is fitted to the bottom of the lower support tube 213 in an interference fit manner. The invention adopts an interference fit mode to connect the supporting pad and the supporting tube, has simple structure and easy assembly. The upper support pad 211 includes a mounting portion for fitting into the upper support tube 214, and a contact portion extended from the mounting portion to be enlarged radially outward, and the sectional area of the contact failure is larger than that of the upper support tube to increase the contact area with the compact, thereby preventing the support body 21 from being damaged. The lower support pad 212 has a similar structure, and the cross-sectional area of the contact portion with the platform is increased, which is beneficial to preventing the support body 21 from being damaged.

Specifically, the upper support tube 214 is inserted into the lower support tube 213. At least one first positioning hole 215 is formed through one of the upper portion of the lower support tube 213 and the lower support tube 213, and a plurality of second positioning holes 216 having different heights are formed through the other one; the height of the upper support pad 211 is adjusted between the upper support tube 214 and the lower support tube 213 through a first stop penetrating rod 217 inserted into the first positioning hole 215 and one of the second positioning holes 216.

In the preferred embodiment, the upper wall of the lower support pipe 213 is provided with a plurality of first positioning holes 215 vertically arranged, and the heights of the first positioning holes 215 are different. The wall of the upper supporting tube 214 is penetrated with a plurality of second positioning holes 216 corresponding to the first positioning holes 215 in number and position. The present invention can achieve height adjustment of the upper support pad 211 by selectively inserting the first stopper penetration rod 217 into one of the first positioning holes 215 and one of the second positioning holes 216. In other embodiments, one first positioning hole 215 may be provided at an upper portion of the lower support pipe 213 and a plurality of second positioning holes 216 may be provided at the upper support pipe 214, and the height adjustment of the upper support pad 211 may be accomplished by adjusting the height of the upper support pipe 214 such that the first positioning hole 215 is aligned with one of the second positioning holes 216 and fitting the first stopper penetrating rod 217. Of course, it is also possible to reverse the above-mentioned structure, in which the upper support tube 214 is provided with a first positioning hole, the upper portion of the lower support tube 213 is provided with a plurality of second positioning holes, and the height of the upper support tube 214 is adjusted to align the first positioning hole with one of the second positioning holes, and the first stopper penetrating rod 217 is inserted, so that the height of the upper support pad 211 can be adjusted. The invention is not limited thereto.

Further, in order to adjust the gap between the lower support pad 212 and the platform, a plurality of third positioning holes 2130 with different heights are penetratingly disposed on the lower support tube 213 in the preferred embodiment, and the third positioning holes 2130 are all located above the transverse plate 202. The support body 21 further includes a second stop penetrating rod 218 selectively inserted into a third positioning hole 2130 for adjusting the height of the lower support pad 212 from the platform. The outer side of the lower support tube 213 is provided with an elastic member 219 having two ends elastically abutting against the second stopper penetrating rod 218 and the lateral plate 202, respectively.

In the preferred embodiment, a plurality of third positioning holes 2130 are formed through the middle wall of the lower support tube 213. The elastic member 219 is preferably a compression spring, which is sleeved outside the lower support tube 213 and located between the second stop penetrating rod 218 and the transverse plate 202, and the top end of the compression spring abuts against the lower surface of the second stop penetrating rod 218, and the bottom end of the compression spring is supported on the upper surface of the transverse plate 202. The second stopping penetrating rod 218 is selectively inserted into one of the third positioning holes 2130, and the second stopping penetrating rod 218 is supported by the elastic force of the compression spring, so that the height of the lower support pad 212 and even the whole support body 21 from the platform can be adjusted, the support unit 2 can be ensured to rotate along with the clamping unit 1, and meanwhile, the safety device can be suitable for platforms and punching equipment with different heights by adjusting the height of the support unit, and the application range is wider.

When the pressing block does not fall down, the elastic member 219 is supported between the second stopping penetrating rod 218 and the transverse plate 202, and the second stopping penetrating rod 218, the lower support pipe 213 connected with the second stopping penetrating rod and even the lower support pad 212 are supported at a certain height by the elasticity of the elastic member 219, so that the lower support pad 212 is away from the platform by a predetermined height; when the pressing block falls down to press on the upper support pad 211, the elastic member 219 is under the pressing force of the second stop penetrating rod 218 to be in a further contracted state and accumulate elastic potential energy, and the support body 21 is pressed to slide down until the lower support pad 212 is supported on the platform; when the press block leaves the upper support pad 211, the elastic member 219 releases the elastic potential energy to push the support body 21 to slide upward and return to a predetermined height from the platform by the lower support pad 212.

In other embodiments, the elastic member 219 may be a cylinder made of rubber material with good elasticity, and the elastic rubber cylinder is sleeved on the lower support tube 213 and located between the second stop penetrating rod 218 and the transverse plate 202, so as to also achieve the function of supporting the second stop penetrating rod 218 to suspend and reposition the lower support pad 212.

In order to further ensure the safe use of the stamping equipment, the auxiliary control unit 3 is arranged on the second side of the holding and clamping unit 1 and is used for performing auxiliary control power-off on a system power supply of the stamping equipment while the supporting unit 2 rotates to the position below the pressing block to prevent the pressing block from falling down, so that the pressing block from falling down caused by manual misoperation or accidental switching-on of the power supply of the stamping equipment is avoided. The auxiliary control unit 3 includes a lower support plate 30 for being fixedly mounted on the platform, and a switch mechanism connected with a system power supply of the punching device is mounted on the lower support plate 30. The auxiliary control unit 3 further comprises a sensing mechanism fixedly mounted on the clasping unit 1, and the sensing mechanism 32 is switched between a first position and a second position along with the rotation of the clasping unit 1, so that the switching mechanism is switched between a closed state and an open state. The invention preferably adopts the matching of the switch mechanism and the sensing mechanism to realize the on-off control of the power supply, and the mode of combining the physical anti-pressure block falling collision and the system power supply control by adopting the supporting unit 2 can effectively ensure the safety when the punching equipment is stopped.

In the preferred embodiment, the lower supporting plate 30 and the sensing wheel 32 are disposed on the second side of the clamping unit 1 and opposite to the supporting unit 2, i.e. the supporting unit 2, the clamping unit 1, and the auxiliary control unit 3 are substantially located on the same straight line. Of course, the auxiliary control unit 3 may be connected to the clasping unit 1 at a substantially right angle or at another angle with respect to the supporting unit 2, as long as the auxiliary control unit 3 is designed to avoid the working area of the platform of the stamping device.

The lower support plate 30 is a basic structure of the supplementary control unit 3, and the rest is mounted thereon. Specifically, the lower support plate 30 is configured to be mounted to the platform by bolts or the like near the outer region and to avoid the working region below the compact. In the preferred embodiment, the switch mechanism is a travel switch 31 mounted on the lower support plate 30, and the travel switch 31 is provided with a contact 310 having an elastic reset function. In the preferred embodiment, the sensing mechanism includes a sensing wheel 32, and the sensing wheel 32 is fixed on the outer side of the other first clamping plate 10 through a sensing wheel frame 36 and is arranged opposite to the supporting unit 2. The sensing wheel frame 36 includes a base plate 360 fastened to the outer side of the first clamping plate 10 by screws, and an extension plate 361 horizontally extending from the bottom of the base plate 360. To further enhance the connection strength, a reinforcing plate 362 is further provided on the base plate 360 and the extension plate 361. The end of the extending plate 361 far away from the first clamping plate 10 is provided with a mounting hole, a bolt is mounted in the mounting hole, and the sensing rotating wheel 32 is sleeved on the bolt and locked by a nut. The sensing wheel 32 can rotate around the column together with the clamping unit 1. The contacts 310 are located in the path of rotation of the sensing wheel 32. When the clamping unit 1 rotates according to a predetermined angle, the sensing wheel 32 rotates along with the clamping unit 1 to touch the contact 310 on the travel switch 31, so that the contact 310 deflects, and the travel switch 31 is in a closed state; when the sensing wheel 32 rotates away from the contact 310, the contact 310 resets by virtue of the elasticity of the contact 310, so that the travel switch 31 is in an on state, and the control of the system power supply of the punching equipment is realized in this way. The invention preferably adopts the travel switch 31 as the switch mechanism to be matched with the sensing mechanism to realize the on-off control of the power supply, has simple structure, lower cost, reliable electrical control performance and strong practicability, and is very suitable for stamping equipment, stamping workshops and the like with severe working environments.

In other embodiments, the sensing mechanism may also adopt a blocking piece directly and fixedly mounted on the clasping unit 1, the extending length of the blocking piece is enough to touch the contact 310, and similarly, the blocking piece can touch the contact 310 to deflect the contact 310 when rotating along with the clasping unit 1, so as to control the closing of the travel switch 31 to realize the power-off of the system power supply, and the blocking piece can rotate away from the contact 310 to control the opening of the travel switch 31 to realize the power-on of the system power supply.

Alternatively, in other embodiments, the switch mechanism may also be a proximity switch mounted on the lower support plate 30, and when the sensing mechanism rotates with the clasping unit 1, the sensing mechanism approaches or moves away from the proximity switch so as to enable the proximity switch to be in a closed or on state, the on-off control of the system power supply can also be realized.

In the invention, the rotation direction of the supporting unit 2 can be selected to rotate clockwise or anticlockwise to finish the action according to the actual field installation condition. Optionally, on the premise of fixing the screwing direction, a limiting block can be additionally arranged to block the rotation of the other screwing direction, so that only one screwing direction is ensured, and misoperation is prevented.

The auxiliary control unit 3 further comprises two second clamping plates 33 which are connected with the lower supporting plate 30 and fixedly clamped on the stand column, and the tops of the second clamping plates 33 are respectively provided with an upper supporting plate 34 supported on the bottom surface of the clamping unit 1. Similar to the two first clamping plates 10 in the clamping unit 1, the two second clamping plates 33 are also firmly hooped on the upright column through bolts and nuts, but the second clamping plates 33 are not provided with eyelet bearings and cannot rotate around the upright column. The clamping unit 1 is supported at a certain height through the upper supporting plate 34 arranged at the tops of the two second clamping plates 33 respectively, and the first clamping plate 10 rotates on the surface of the upper supporting plate 34, so that abrasion to the platform when the clamping unit 1 rotates can be prevented.

Optionally, a stopper 35 for limiting the optional angle of the clasping unit 1 protrudes upwards from the lower support plate 30. The stop block 35 is arranged between the travel switch 31 and the clasping unit 1, and can prevent the first clasping plate 10 of the clasping unit 1 from being installed at an excessively large angle. The stop 35 is located in the rotational path of the sensing wheel 32 or the sensing wheel carriage 36 to prevent the sensing wheel 32 from over-rotating.

The invention also provides stamping equipment which comprises a platform, wherein the platform is provided with an upright post, and the upper part of the upright post is connected with a pressing block which reciprocates along the upright post in a sliding manner.

When the anti-pressing block falling safety device is arranged on the punching equipment, the use process is approximately as follows:

when the punching equipment is stopped, the supporting unit 2 together with the clamping unit 1 is pushed to rotate around the upright column to the state shown in fig. 3, so that the supporting body 21 is positioned in a working area below the pressing block, and the sensing rotating wheel 32 rotates along with the clamping unit 1 to touch the deflection angle of the contact 310, so that the travel switch 31 is closed, the system power supply is in a closed state, and the double safety of preventing the pressing block from falling is realized. In this state, when the press block is not dropped, the elastic member 219 is supported between the second stopper penetrating rod 218 and the transverse plate 202 so that the lower support pad 212 is spaced from the platform by a predetermined height; when the pressing block falls down to press on the upper support pad 211, the elastic member 219 is under the pressing force of the second stop penetrating rod 218 to be in a further contracted state and accumulate elastic potential energy, and the support body 21 is pressed to slide down until the lower support pad 212 is supported on the platform; when the press block leaves the upper support pad 211, the elastic member 219 releases the elastic potential energy to push the support body 21 to slide upward and return to a predetermined height from the platform by the lower support pad 212.

When the stamping equipment needs to be started to work, because a gap exists between the bottom of the supporting body 21 of the supporting unit 2, namely the lower supporting pad 212, and the platform, the supporting unit 2 can be pushed to rotate around the upright column together with the holding clamp unit 1, specifically, the supporting body can rotate 90 degrees counterclockwise or clockwise in the direction shown in fig. 3, so that the supporting body 21 of the supporting unit 2 exits from a working area below the pressing block, the sensing rotating wheel 32 rotates to be far away from the contact 310 along with the holding clamp unit 1, the contact 310 resets to switch on the travel switch 31, the system power supply is in a switching-on state, at the moment, the stamping equipment is started, and the pressing block can work around the upright.

According to the safety device for preventing the pressure blocks from falling and the stamping equipment provided with the safety device, when the stamping equipment is stopped, the pressure blocks falling accidentally can be supported by the support body 21, so that the safety accidents of people and machines are effectively prevented; the invention can conveniently control the system power supply of the stamping equipment, and prevent the pressing block from falling caused by manually or accidentally starting the stamping equipment; the safety device for preventing the pressure block from falling can normally work on stamping equipment and a stamping workshop with a severe working environment, and is simple and practical to operate.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. 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. A kind of safety device that prevents the pressure block from falling used for stamping equipment, characterized by comprising:

the holding and clamping unit (1) is used for rotatably holding and clamping the upright post of the stamping equipment;

the supporting unit (2) is fixedly connected to the first side of the holding and clamping unit (1) and rotationally moves along with the holding and clamping unit (1), wherein the supporting unit (2) comprises a supporting bracket (20) fixedly connected to one side of the holding and clamping unit (1) and a supporting body (21) connected with the supporting bracket (20), and when the supporting unit (2) rotates to the position below a pressing block of the punching equipment along with the holding and clamping unit (1), the top end of the supporting body (21) is used for supporting the pressing block when the pressing block falls;

the auxiliary control unit (3) is arranged on the second side of the holding and clamping unit (1) and comprises a switching mechanism which is fixedly installed on a platform of the stamping equipment and is used for being connected with a system power supply of the stamping equipment and a sensing mechanism which is fixedly installed on the holding and clamping unit (1), wherein when the sensing mechanism rotates to a first position along with the holding and clamping unit (1), the switching mechanism is in a closed state, and when the sensing mechanism rotates to a second position, the switching mechanism is in an open state;

the auxiliary control unit (3) comprises a lower support plate (30) fixedly mounted on a platform, the switch mechanism is a travel switch (31) mounted on the lower support plate (30), the travel switch (31) is provided with a contact (310) with an elastic reset function, the sensing mechanism comprises a sensing rotating wheel (32), the sensing rotating wheel (32) is fixedly mounted on the outer side of the other first clamping plate (10) through a sensing wheel frame (36) and is arranged opposite to the support unit (2), the contact (310) is positioned on a rotating path of the sensing rotating wheel (32), and when the clamping unit (1) rotates according to a preset angle, the sensing rotating wheel (32) rotates along with the clamping unit (1) to touch the contact (310) on the travel switch (31) so that the contact (310) deflects, thereby enabling the travel switch (31) to be in a closed state; when the sensing rotating wheel (32) rotates away from the contact (310), the contact (310) resets by means of elasticity of the contact, so that the travel switch (31) is in an on state, and control over a system power supply of the stamping equipment is achieved in this way;

the auxiliary control unit (3) further comprises two second clamping plates (33) which are connected with the lower supporting plate (30) and are fixedly clamped on the stand columns, and the tops of the second clamping plates (33) are respectively provided with an upper supporting plate (34) which is supported on the bottom surface of the clamping unit (1).

2. The pressure bar fall prevention safety device for a punching apparatus according to claim 1,

embrace and press from both sides unit (1) including two first splint (10) of embracing of mutual fixed connection, the inboard of first splint (10) of embracing is provided with be used for with stand roll complex universal ball (11) or gyro wheel.

3. The pressure bar fall prevention safety device for a punching apparatus according to claim 1,

the supporting bracket (20) comprises a fixing plate (201) fixedly connected to one side of the holding and clamping unit (1), the upper end of the fixing plate (201) is connected with a transverse plate (202) extending in the direction far away from the holding and clamping unit (1), and a through hole (203) is formed in the transverse plate (202);

the utility model discloses a stamping equipment, including supporter (21), through-hole (203), the top of supporter (21) is provided with and is used for supporting last supporting pad (211) of tenesmus briquetting, supporter (21) bottom is provided with and is used for the briquetting is pressed and is followed when going up supporting pad (211) supporter (21) gliding is in order to support in lower supporting pad (212) on stamping equipment's platform.

4. The pressure bar fall prevention safety device for a punching apparatus according to claim 3,

the support body (21) comprises a lower support pipe (213) movably arranged in a penetrating way in the through hole (203) and an upper support pipe (214) inserted into the upper part of the lower support pipe (213), the upper support pad (211) is connected to the top of the upper support pipe (214), and the lower support pad (212) is connected to the bottom of the lower support pipe (213).

5. The pressure bar fall prevention safety device for a punching apparatus according to claim 4,

the lower support pipe (213) is of a hollow structure, the upper support pipe (214) is inserted into the lower support pipe (213), at least one first positioning hole (215) penetrates through one of the upper part of the lower support pipe (213) and the lower support pipe (213), and a plurality of second positioning holes (216) with different heights penetrate through the other one;

the upper support tube (214) and the lower support tube (213) realize height adjustment of the upper support pad (211) through a first stop penetrating rod (217) correspondingly inserted into the first positioning hole (215) and one of the second positioning holes (216).

6. The pressure bar fall prevention safety device for a punching apparatus according to claim 4,

a plurality of third positioning holes (2130) with different heights are arranged on the lower supporting tube (213) in a penetrating way, and the third positioning holes (2130) are all positioned above the transverse plate (202);

the supporting body (21) further comprises a second stop penetrating rod (218) selectively inserted into one of the third positioning holes (2130) for adjusting the height of the lower supporting pad (212) from the platform;

and an elastic piece (219) with two ends respectively and elastically abutted against the second stop penetrating rod (218) and the transverse plate (202) is arranged on the outer side of the lower supporting tube (213).

7. The pressure bar fall prevention safety device for a punching apparatus according to claim 4,

the upper supporting tube (214) is hollow, and the upper supporting pad (211) is assembled at the top of the upper supporting tube (214) in an interference fit manner;

the lower supporting pad (212) is assembled at the bottom of the lower supporting tube (213) in an interference fit mode.

8. Stamping equipment, including the platform, be equipped with the stand on the platform, the upper portion sliding connection of stand has along the reciprocating motion's of stand briquetting, characterized in that, be equipped with on the stand according to any one of claims 1 to 7 prevent briquetting safety device that falls, wherein, the support element (2) is rotatory with embracing clamp unit (1) in order to move between the briquetting below region and the briquetting below region beyond.