CN214520870U - Press with dual protection function - Google Patents

Abstract

The application relates to the field of ancient building tile manufacturing, in particular to a press with dual protection functions, which comprises a base and an extrusion device, wherein a workbench is arranged on the base, the extrusion device comprises a driving mechanism and an extrusion plate, the extrusion plate is connected to the base in a sliding mode and located right above the workbench, the driving mechanism is installed on the base and connected with the extrusion plate, a supporting protection device and a self-locking protection device are arranged on the upper side face of the base, the self-locking protection device is arranged on the base and located on one side operated by workers, the self-locking protection device is electrically connected with the driving mechanism, when workers manually take tiles, the supporting protection device is located below the extrusion plate, and when the extrusion plate falls to be in contact with the supporting protection device, the extrusion plate can be limited by the supporting protection device and cannot fall smoothly; the self-locking device can lock the working state of the press machine, so that the extrusion plate stops at a high position, and the phenomenon that the extrusion plate automatically slides downwards due to self-starting of the press machine is reduced.

Description

Press with dual protection function

Technical Field

The application relates to the field of ancient building tile manufacturing, in particular to a press with dual protection functions.

Background

A great variety of bricks and tiles are commonly used in ancient buildings in China, most of the bricks and tiles give people a sense of sintness, simplicity and naturalness, and some buildings in modern society can also use imitated ancient building tiles. When the ancient tile is manufactured, the mud blank is required to be pressed into the appearance of the tile, and a press machine is usually required.

The Chinese utility model patent publication No. CN209649532U discloses a press machine, which comprises a press machine body, a hydraulic mechanism and a placing table, wherein the top of the inner wall of the press machine body is fixedly connected with the hydraulic mechanism, the placing table is fixedly connected with the top of the press machine body and is positioned under the hydraulic mechanism, a fixed rod is fixedly connected between the two sides of the bottom of the inner wall of the press machine body, the press machine is fixedly connected with the fixed rod between the two sides of the bottom of the inner wall of the press machine body, and the two sides of the surface of the fixed rod are both slidably connected with connecting blocks, so that the work piece can be automatically collected after the punching is finished, the press machine is simple in operation and more convenient in use, reduces the working risk, reduces the labor cost, improves the working efficiency, and is more convenient and faster in use by fixedly connecting second hydraulic telescopic rods on the two sides of the top of a sliding plate, so that the collection of the workpieces is more convenient.

In view of the above-mentioned related technologies, the inventor believes that after the mud blank is extruded by the press, workers need to manually take out the tiles, and the phenomenon that the pressing plate automatically slides down may occur, so that the workers are injured.

SUMMERY OF THE UTILITY MODEL

In order to improve the automatic landing of clamp plate and lead to the injured phenomenon of staff, this application provides a press with dual safeguard function.

The application provides a press with dual safeguard function adopts following technical scheme:

the utility model provides a press with dual safeguard function, includes base and extrusion device, be provided with the workstation on the base, extrusion device includes actuating mechanism and stripper plate, stripper plate sliding connection is on the base and lie in directly over the workstation, actuating mechanism installs on the base and is connected with the stripper plate, the side is provided with support protector and auto-lock protector on the base, auto-lock protector sets up the one side that is located the workman and operates on the base for whether someone stretches out the hand and gets the tile, auto-lock protector is connected with the actuating mechanism electricity.

By adopting the technical scheme, when the press machine works, a worker places a mud blank on the upper surface of the workbench, the press machine is started, the driving mechanism can drive the extrusion plate to move towards the workbench to extrude the mud blank on the workbench into the shape of a tile, the driving mechanism drives the extrusion plate to slide upwards after the extrusion is finished, the worker manually takes out the tile, the supporting and protecting device is positioned below the extrusion plate, and when the extrusion plate falls to be in contact with the supporting and protecting device, the extrusion plate can be limited by the supporting and protecting device and cannot fall smoothly; at the moment, the self-locking device can lock the working state of the press machine, so that the extrusion plate stops at a high position, and the phenomenon that the extrusion plate automatically slides downwards due to self-starting of the press machine is reduced. The supporting protection device and the self-locking protection device can play a role in double protection for workers, and the phenomenon that the workers are injured due to the fact that a group of protection devices break down is reduced.

Optionally, auto-lock protector sets up at the infrared detection device group and the self-locking circuit of base towards operation face one side including the symmetry, infrared detection device group is including the transmitting terminal and the receiving terminal of infrared detector, the both sides at the press material taking opening are installed respectively to the transmitting terminal and the receiving terminal of infrared detector for export staff detected signal K1, the signal output part and the self-locking circuit electricity of infrared detection device group are connected, the power supply circuit electricity of self-locking circuit and press are connected.

Through adopting above-mentioned technical scheme, infrared detection device group sets up in base towards operation surface one side, when the staff stretched the hand and got the tile, infrared detection device group detected that the people hand can export staff detection signal K1 when stretching into, self-locking circuit received staff detection signal K1 and can make the power supply circuit outage of press to make the stripper plate stop in the state that is located the eminence, reduced because the phenomenon of the downward landing of press self-starting stripper plate.

Optionally, the self-locking circuit includes:

the switch assembly is electrically connected with the signal output end of the infrared detection device group to receive a hand detection signal K1 and output a control signal K2;

and the locking assembly is connected in series in a power supply circuit of the press and is electrically connected with the switch assembly to receive a control signal K2 for locking the stop state of the press.

Through adopting above-mentioned technical scheme, when someone hand stretched into people hand detected signal K1 be the high level, infrared detection device with people hand detected signal K1 send to the switch module, switch module output control signal K2, the power supply circuit outage of locking subassembly control press after receiving control signal K2 makes the press keep the state of stop work.

Optionally, the switch assembly includes:

a PNP type triode Q1, the base electrode of which is connected with the infrared detection device group, and the collector electrode of which is grounded;

and a relay KM1, the coil of which is connected in series between the emitter of the PNP type triode Q1 and the power supply, and the normally closed contact KM1-1 of which is connected in series in the locking assembly.

By adopting the technical scheme, the PNP type triode Q1 is conducted at a low level, the PNP type triode Q1 is conducted when the hand detection signal K1 is at the low level, and the PNP type triode Q1 is cut off when the hand detection signal K1 is at the high level; when the PNP type triode Q1 is cut off, the relay KM1 is powered off, the normally closed contact KM1-1 is opened, the locking assembly is disconnected, a power supply loop of the press is disconnected, and the press stops working.

Optionally, the locking assembly includes:

the press valve is electrically connected in a power supply loop of the press and keeps a normally open state;

and a coil of the relay KM2 is connected in series in a power supply loop, and a normally open contact KM2, namely a contact KM2-1, is connected in parallel at two sides of a valve of the press machine.

By adopting the technical scheme, when the relay KM1 is powered off, the normally closed contact KM1-1 is opened, the locking assembly is disconnected, when workers take away tiles, a hand detection signal K1 is at a low level, the PNP type triode Q1 is conducted, the relay KM1 is electrified, the normally closed contact KM1-1 is closed, the switch assembly and the locking assembly are communicated, but when the PNP type triode Q1 is cut off, the normally open contact KM2-1 of the relay KM2 is disconnected, the valve of the press is kept disconnected, the locking assembly is still kept disconnected, a power supply loop of the press is not electrified, the press does not work, only the press valve is manually operated to enable the relay KM2 to be electrified, the normally open contact KM2-1 of the relay KM2 is communicated, and the power supply loop can be communicated to enable the press to start working again.

Optionally, the support protection device comprises a support rod and a telescopic hydraulic cylinder, the support rod is vertically connected to a piston rod of the telescopic hydraulic cylinder, and the telescopic hydraulic cylinder is used for driving the support rod to move towards a direction close to or far away from the extrusion plate.

By adopting the technical scheme, when the extrusion device extrudes the mud blank on the workbench, the telescopic hydraulic cylinder drives the support rod to move towards the direction far away from the extrusion plate, so that the extrusion plate can normally fall; when the stripper plate risees the back, flexible pneumatic cylinder drive bracing piece moves to the below of stripper plate, and the bracing piece can play the supporting role to the stripper plate when the stripper plate is unexpected to slide down.

Optionally, the shrink of flexible pneumatic cylinder is controlled by the power supply loop of press, the extension of flexible pneumatic cylinder is controlled by high detection device, high detection device includes vertical setting at the bar shaped plate of base top and the proximity switch of connection on the bar shaped plate, proximity switch's signal output part is connected with actuating mechanism, flexible pneumatic cylinder electricity simultaneously.

By adopting the technical scheme, after the power supply circuit of the press machine is communicated, the extrusion plate slides downwards along the vertical rod, the telescopic hydraulic cylinder can contract after receiving a signal for starting the press machine, and the support rod is driven to move towards the direction far away from the extrusion plate, so that the extrusion plate can conveniently and smoothly fall; when the stripper plate rises to proximity switch department, proximity switch output stripper plate's position signal, and actuating mechanism receives the position signal of stripper plate and can make the stripper plate stop rising, and flexible pneumatic cylinder can extend the piston rod after receiving the position signal of stripper plate, and the drive bracing piece is to the motion of stripper plate below, plays the supporting role to the stripper plate.

In summary, the present application includes at least one of the following beneficial technical effects:

1. a self-locking protection device is arranged on a base of the press machine and can lock the state that the press machine stops working;

2. a support protection device is further arranged on a base of the press machine, and the press machine can support the extrusion plate when the extrusion plate slides down accidentally;

3. the self-locking protection device and the supporting protection device can play a dual protection role for workers, and the phenomenon that the workers are injured due to the fact that a group of protection devices break down is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of a safety shield apparatus according to an embodiment of the present application;

fig. 3 is a circuit diagram of a latch circuit in an embodiment of the present application.

Description of reference numerals: 100. a base; 200. a vertical rod; 300. a work table; 400. an extrusion device; 410. a drive mechanism; 420. a pressing plate; 430. an extrusion table; 500. a valve; 600. a safety device; 610. supporting the guard; 611. a support bar; 612. a telescopic hydraulic cylinder; 613. a height detection assembly; 6131. a strip plate; 6132. a proximity switch; 620. a self-locking protection device; 621. an infrared detection device group; 6211. a transmitting end; 6212. a receiving end; 622. a self-locking circuit; 6221. a switch assembly; 6222. and a locking assembly.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a press with dual safeguard function.

Referring to fig. 1, the press machine includes a base 100, a worktable 300 and an extrusion device 400, wherein the worktable 300 is installed above the base 100, a vertical rod 200 is fixedly connected to the periphery of the worktable 300, one end of the vertical rod 200 is fixedly connected to the base 100, and the other end is connected to the extrusion device 400. The extrusion device 400 comprises a driving mechanism 410 and an extrusion plate 420, the driving mechanism 410 is installed on one side, far away from the workbench, of the extrusion plate 420, the extrusion plate 420 is connected with the vertical rod 200 in a sliding mode and is perpendicular to the vertical rod 200, the driving mechanism 410 is an electric control hydraulic cylinder in the embodiment of the application, and the driving mechanism 410 starts to extrude a mud blank after a power supply loop of the press is communicated. In order to achieve better pressing effect, a pressing table 430 matched with the working table 300 is arranged on one side of the pressing plate 420 close to the working table 300.

When a worker places the adobe on the worktable 300 when the tile is manufactured, the driving mechanism 410 is started, and the pressing plate 420 slides along the vertical rod 200 toward the worktable 300 under the action of the driving mechanism 410 until the pressing table 430 contacts the adobe, and the adobe is pressed into the shape of the tile between the pressing table 430 and the worktable 300. After the tile is extruded, the pressing plate 420 slides along the vertical rod 200 in a direction away from the workbench 300 under the action of the driving mechanism 410, so that a worker has enough space to manually take out the tile.

When the tile is taken manually to the staff, in order to play the protection effect to the staff, this press still is provided with two sets of safety device 600, and safety device 600 can reduce the phenomenon of stripper plate 420 automatic landing, is provided with two sets of effects that can play dual protection simultaneously, has strengthened the security performance.

Referring to fig. 2, the two sets of safety guards 600 are respectively a support guard 610 and a self-locking guard 620.

The support guard 610 is disposed on the side of the base 100 and includes a telescopic hydraulic cylinder 612 and a vertically disposed support rod 611. When the extrusion plate 420 descends, the piston rod of the telescopic hydraulic cylinder 612 contracts to drive the support rod 611 to move in the direction away from the extrusion plate 420, so that the extrusion plate 420 can smoothly fall to the extrusion table 430 to be contacted with a mud blank; when the extrusion plate 420 ascends, the piston rod of the telescopic hydraulic cylinder 612 extends to drive the support rod 611 to move towards the direction close to the extrusion plate 420 until the support rod 611 is located below the extrusion plate 420, and when the extrusion plate 420 accidentally slides down, the support rod 611 can limit the extrusion plate 420, so that the extrusion plate 420 cannot slide down continuously. In the embodiment of the application, two groups of supporting and protecting devices 610 are symmetrically arranged, so that the phenomenon that the extrusion plate 420 turns on the side can be reduced, and the supporting effect is better; the telescopic hydraulic cylinder 612 selects an electrically controlled hydraulic cylinder.

The extension of the piston rod of the telescopic hydraulic cylinder 612 is controlled by a height detection assembly 613 and the retraction is controlled by the power supply circuit of the press. The height detecting assembly 613 includes a strip-shaped plate 6131 vertically disposed above the base 100 and a proximity switch 6132 connected to the strip-shaped plate 6131, and the proximity switch 6132 can detect the position of the pressing plate 420. The signal output terminal of the proximity switch 6132 is electrically connected to the power supply circuit of the driving mechanism 410 and also electrically connected to the telescopic hydraulic cylinder 612. When the extrusion plate 420 moves to the position of the proximity switch 6132, the proximity switch 6132 outputs a position signal of the extrusion plate 420, controls the driving mechanism 410 to stop moving, and controls the telescopic hydraulic cylinder 612 to extend while the extrusion plate 420 no longer slides upwards along the vertical rod 200, so as to drive the support rod 611 to move below the extrusion plate 420. The valve 500 of the press machine is electrically connected with the driving mechanism 410 and also electrically connected with the telescopic hydraulic cylinder 612, after the valve 500 of the press machine is opened, the driving mechanism 410 is controlled to start to move, the extrusion plate 420 slides downwards along the vertical rod 200, meanwhile, the telescopic hydraulic cylinder 612 is controlled to contract, and the supporting rod 611 is driven to slide towards the direction far away from the extrusion plate 420.

Self-locking protection device 620 includes that the symmetry sets up the infrared detection device group 621 in base 100 operation face one side, and infrared detection device group 621 is including the transmitting terminal 6211 and the receiving terminal 6212 that are located the infrared detector of press material intaking mouth both sides for output staff detected signal K1, when the staff stretched into the base 100 top, infrared detection device group 621 can detect there is the staff, and K1 is the high level, and when nobody's hand stretched into, K1 was the low level.

Referring to fig. 3, the signal output terminal of the infrared detection device group 621 is electrically connected to the self-locking circuit 622, and the self-locking circuit 622 is electrically connected to the power supply circuit of the press. The self-locking circuit 622 includes a switch assembly 6221 and a locking assembly 6222. The switch assembly 6221 comprises a PNP type triode Q1 and a relay KM1, wherein the base of the PNP type triode Q1 is connected with the infrared detector receiving end 6212, the collector is grounded, the coil of the relay KM1 is connected in series with the position between the emitter of the PNP type triode Q1 and the power supply, and the normally closed contact KM1-1 is connected in series in the locking assembly 6222; the locking assembly 6222 comprises a valve 500 of the press and a relay KM2, wherein the valve 500 is electrically connected to the power supply loop of the press and is in a normally open state, the coil of the relay KM2 is connected in series to the power supply loop of the press, and the normally open contact KM2-1 is connected in parallel to two sides of the valve 500.

The implementation principle of the press machine in the embodiment of the application is as follows: the extrusion plate 420 is located the eminence when the press stops working, when making the tile, the staff places the mud base on workstation 300, the valve 500 of operation press opens the press, actuating mechanism 410 begins to drive extrusion plate 420 and slides to the direction that is close to workstation 300 along vertical pole 200 under the control of valve 500, flexible pneumatic cylinder 612 begins to shrink under the control of valve 500 simultaneously, bracing piece 611 is to the direction motion of keeping away from the backup pad, extrusion plate 420 can fall smoothly until extrusion platform 430 and mud base contact, the mud base is extruded the shape of tile.

After the tile is extruded, a worker needs to manually take out the tile, the driving mechanism 410 drives the extrusion plate 420 to slide along the vertical rod 200 in the direction far away from the workbench 300, when the proximity switch 6132 senses the position of the extrusion plate 420, a position signal of the extrusion plate 420 is sent to the driving mechanism 410 and the telescopic hydraulic cylinder 612, the driving mechanism 410 stops working after receiving the position signal, and the extrusion plate 420 does not continuously rise any more; the telescopic hydraulic cylinder 612 starts to extend after receiving the position signal, the support rod 611 is driven to move to the lower side of the extrusion plate 420, and when the extrusion plate 420 accidentally slides down, the support rod 611 can support the extrusion plate 420, so that the injury to hands of people is reduced.

When a worker stretches a hand to the workbench 300, the infrared detection device group 621 detects that the hand stretches into, the output hand detection signal K1 is high level, the PNP type triode Q1 is cut off, the relay KM1 is powered off, the normally closed contact KM1-1 is opened, the locking assembly 6222 is disconnected, the relay KM2 is not powered on, the normally open contact KM2-1 of the relay KM2 is opened, the valve 500 of the press machine is kept in a disconnected state, a power supply loop of the press machine is disconnected, the driving mechanism 410 stops working, and the pressing plate 420 stays at a high position.

When the worker takes the tile away, at the moment, a hand detection signal K1 output by the infrared detection device group 621 is at a low level, the PNP type triode Q1 is conducted, the relay KM1 is electrified, the normally closed contact KM1-1 is closed, the switch assembly 6221 and the locking assembly 6222 are communicated, however, when the PNP type triode Q1 is cut off, the normally open contact KM2-1 of the relay KM2 is disconnected, the valve 500 of the press machine is kept in a disconnected state, the locking assembly 6222 is still disconnected, a power supply loop of the press machine is not electrified, the pressing plate 420 is still kept at a high position, only when the valve 500 is manually operated, the relay KM2 is electrified, the normally open contact KM2 KM2-1 is communicated, the power supply loop of the press machine can be communicated again, and the press machine starts to work again. The self-locking protection device 620 can lock the high position of the extrusion plate 420, and the phenomenon that the extrusion plate 420 is accidentally injured by workers due to self-starting of the press machine is reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (7)

1. The utility model provides a press with dual safeguard function, includes base (100) and extrusion device (400), be provided with workstation (300) on base (100), extrusion device (400) include actuating mechanism (410) and stripper plate (420), stripper plate (420) sliding connection is on base (100) and is located workstation (300) directly over, actuating mechanism (410) are installed on base (100) and are connected with stripper plate (420), a serial communication port, the side is provided with support protector (610) and auto-lock protector (620) on base (100), auto-lock protector (620) set up the one side that is located the workman and operates on base (100) for whether someone stretches out the hand and gets the tile, auto-lock protector (620) are connected with actuating mechanism (410) electricity.

2. The press with the dual protection function according to claim 1, wherein the self-locking protection device (620) comprises an infrared detection device set (621) and a self-locking circuit (622) which are symmetrically arranged on one side, facing the operating surface, of the base (100), the infrared detection device set (621) comprises a transmitting end (6211) and a receiving end (6212) of an infrared detector, the transmitting end (6211) and the receiving end (6212) of the infrared detector are respectively installed on two sides of a material taking port of the press and used for outputting a hand detection signal K1, a signal output end of the infrared detection device set (621) is electrically connected with the self-locking circuit (622), and the self-locking circuit (622) is electrically connected with a power supply circuit of the press.

3. Press with double protection according to claim 2, characterized in that said self-locking circuit (622) comprises:

the switch assembly (6221) is electrically connected with the signal output end of the infrared detection device group (621) to receive the human hand detection signal K1 and output a control signal K2;

and the locking assembly (6222) is connected in series in a power supply circuit of the press and is electrically connected with the switch assembly (6221) to receive a control signal K2 for locking the state that the press stops working.

4. Press with double protection according to claim 3, characterized in that said switch assembly (6221) comprises:

a PNP type triode Q1, the base electrode of which is connected with the infrared detection device group (621), and the collector electrode of which is grounded;

the coil of the relay KM1 is connected in series between the emitter of the PNP type triode Q1 and the power supply, and the normally closed contact KM1-1 is connected in series in the locking assembly (6222).

5. Press with double protection according to claim 4, wherein said locking assembly (6222) comprises:

a press valve (500) electrically connected in a power supply circuit of the press and kept in a normally open state;

and a coil of the relay KM2 is connected in series in a power supply loop, and a normally open contact KM2-1 of the relay KM2 is connected in parallel at two sides of a press valve (500).

6. Press with double protection according to claim 1, characterized in that said support guard (610) comprises a support bar (611) and a telescopic hydraulic cylinder (612), said support bar (611) being vertically connected to a piston rod of the telescopic hydraulic cylinder (612), said telescopic hydraulic cylinder (612) being adapted to drive the support bar (611) towards a direction approaching or moving away from the squeeze plate (420).

7. The press with the double protection function according to claim 6, wherein the retraction of the telescopic hydraulic cylinder (612) is controlled by a power supply circuit of the press, the extension of the telescopic hydraulic cylinder (612) is controlled by a height detection device, the height detection device comprises a strip-shaped plate (6131) vertically arranged above the base (100) and a proximity switch (6132) connected to the strip-shaped plate (6131), and a signal output end of the proximity switch (6132) is electrically connected with the driving mechanism (410) and the telescopic hydraulic cylinder (612) at the same time.

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