CN210504475U - Energy-saving roller way - Google Patents

Abstract

The utility model provides an energy-saving roller way to solve the idle running phenomenon of roller way when being interrupted to carry large-scale product, relate to roller way technical field. An energy-saving roller way comprises a frequency converter, a contactor, a plurality of rollers and transmission motors which are arranged in one-to-one correspondence with the rollers; the contactor and the rollers are arranged in a one-to-one correspondence mode, the main contacts of the contactor and the transmission motor are electrically connected, the rollers are arranged in a one-to-one correspondence mode, and the inductive switches are arranged in a one-to-one correspondence mode. The utility model discloses not only practice thrift the electric energy, still reduced the wearing and tearing of equipment.

Description

Energy-saving roller way

Technical Field

The utility model relates to a roll table technical field specifically is an energy-conserving roll table.

Background

The roller way is formed by linearly arranging a plurality of rollers and is mainly used for conveying products. All transmission motors of the existing roller way are usually connected in parallel to the same contactor main contact, and the contactor main contact is electrically connected with a frequency converter, so that when the roller way is started, each roller of the roller way is synchronously started to rotate, and the continuous transmission of products is facilitated.

In the production of a part of large-scale products, such as the production of spiral steel pipes, the spiral steel pipes are intermittently transmitted from one station to the next station by a roller way, namely, the roller way is started once, and only one steel pipe is transmitted by the roller way. Since such products are usually only a few meters long, and the roller table is usually dozens of meters long or longer, the existing way of controlling a plurality of roller motors by one frequency converter can cause that most rollers have no products and idle, and the transmission motor does not work. Because the single piece mass of the product is usually several tons or more than ten tons, the product transmission rotating torque is large, the speed is relatively slow, the power of the roller transmission motor is large, and the roller idle time is long when the product is transmitted by the conventional roller way, so that the great energy waste is caused, and the abrasion caused by the idle running of the equipment is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an energy-saving roller way is provided to solve and be interrupted partial roller way idling phenomenon when carrying large-scale product.

The utility model provides a technical scheme that its technical problem adopted is: an energy-saving roller way comprises a frequency converter, a contactor, a plurality of rollers, transmission motors, a controller, a control circuit power supply and induction switches, wherein the transmission motors are arranged in one-to-one correspondence to the rollers;

the contactors are arranged in one-to-one correspondence with the rollers, main contacts of the contactors arranged in one-to-one correspondence with the rollers are electrically connected with the transmission motor, and the main contacts of the contactors are electrically connected with the frequency converter, so that main circuits for respectively controlling the rollers to rotate are formed;

the induction switches are arranged in one-to-one correspondence with the rollers, the induction switches are electrically connected with the control circuit power supply and the controller, and the signal output contacts on the controller are electrically connected with the corresponding contact points of the control coil of the contactor, so that control circuits for respectively controlling the rotation of the rollers are formed.

Further, the controller is an intermediate relay which is arranged in one-to-one correspondence with the rollers.

Further, the power supply of the control circuit is a 24-volt direct-current power supply.

Further, the inductive switch is a photoelectric switch.

Furthermore, a circuit breaker and a motor protection switch are further arranged on the main circuit.

The utility model has the advantages that: the utility model discloses an energy-conserving roll table installs inductive switch on every roller, the roll table circular telegram back, promptly, during the transmission product, when inductive switch sensed the roller top automatically and had the product, inductive switch closed, the control circuit intercommunication, the controller output contact output signal of telecommunication, control contactor is closed to the roller main circuit that the switch-on corresponds with the product, the roller that makes and the product correspond rotates, thereby transmits the product. When the product is transmitted forwards and passes through, the induction switch automatically detects a signal that no product exists above the roller, the induction switch is switched off, the control circuit is switched off, the controller output contact loses an electric signal, the control contactor is switched off, the rotating roller stops rotating, only when the product reaches the upper part of the roller, the roller rotates, and after the product leaves the roller, the roller automatically stops rotating, so that the roller is prevented from idling, electric energy is saved, and the abrasion of equipment is reduced.

Drawings

Fig. 1 is a schematic structural view of a roller bed of the present invention;

fig. 2 is a schematic circuit diagram of each roller of the roller table of the present invention;

shown in the figure: 1. the roller table comprises a roller table, 2 products, 11 rollers, 12 transmission motors, 13 frequency converters, 14 contactors, 15 induction switches, 16 controllers, 17 control circuit power supplies, 18 main circuits, 19 control circuits, 20 power lines, 21 motor protection switches and 22 circuit breakers.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1, the utility model discloses an energy-saving roller table 1, including converter 13, contactor 14, a plurality of roller 11 and with the driving motor 12 that roller 11 one-to-one set up, the setting is arranged linearly between roller 11, and driving motor 12 is connected with roller 11 transmission. As shown in fig. 2, in order to prevent the roller way from idling, the roller way further comprises a controller 16, a control circuit power supply 17 and an inductive switch 15. The contactors 14 are arranged corresponding to the rollers 11 one by one, and main contacts of the contactors 14 arranged corresponding to the rollers 11 one by one are electrically connected with the transmission motor 12, and the main contacts of the contactors 14 are electrically connected with the frequency converter 13, so as to form main circuits 18 for respectively controlling the rollers 11 to rotate. Wherein, a plurality of contactors can be connected with the frequency converter, and the contactors are connected in parallel, namely, the main circuit 18 between the rollers shares one frequency converter. The inductive switches 15 are arranged in one-to-one correspondence with the rollers 11, the inductive switches 15 are electrically connected with the control circuit power supply 17 and the controller 16, and the signal output contacts on the controller 16 are electrically connected with the control coil contacts corresponding to the contactors 14, so as to form control circuits 19 for respectively controlling the rotation of the rollers 11, and thus, after the inductive switches 15 corresponding to the rollers 11 are closed, the controller 16 outputs signals to control the closing of the control coils of the contactors 14 corresponding to the rollers 11. Specifically, in fig. 1, the inductive switch 15 is mounted on the roller seat of the roller 11; the controller 16 is embodied as an intermediate relay (see fig. 2) provided in one-to-one correspondence with the rollers 11. Of course, the controller 16 may be a PLC controller. When the controller 16 is a PLC controller, since there are many input contacts of the PLC controller, one PLC controller can be used to control the on/off of the main circuits of the plurality of rollers, that is, the plurality of control lines 19 share one PLC controller. The control circuit power supply 17 may also be shared by a plurality of control lines 19, or each control line 19 may be individually set, specifically, may be actually set according to power supply power, load power, and the like.

Wherein, control power supply can be 220V, 110V, 24V etc. for guarantee the power consumption safety, the utility model discloses preferred 24 volt DC power supply. The optional contact switch of inductive switch, photoelectric switch etc. because photoelectric switch effective induction distance can reach 2 meters, simple to operate, good reliability, consequently, inductive switch is preferably photoelectric switch.

In order to ensure the safety of electricity utilization and facilitate maintenance, a circuit breaker 22 and a motor protection switch 21 are further arranged on the main circuit 18.

When the roller table is used, the main circuit 18 of each roller 11 is connected to the power line 20 in parallel, so that after the roller table is electrified, namely, when the product is transmitted, the induction switch 15 automatically senses that the product 2 is arranged above the roller 11 corresponding to the product, the induction switch 15 is closed, the control circuit 19 of the roller 11 corresponding to the product is communicated, and the output contact of the controller 16 outputs a corresponding electric signal (an intermediate relay coil is electrified and the contact is closed), so that the control coil of the contactor 14 of the main circuit 18 is also electrified and closed to be communicated, and thus, the roller 11 corresponding to the product is automatically started, and the product is transmitted. When the product 2 is transmitted forwards through the roller 11, the inductive switch 15 detects that no product 2 signal exists above the roller 11, the inductive switch 15 is switched off, the control circuit 19 is switched off, the controller 16 outputs a contact loss electric signal, the contactor 14 controls a coil loss point, the contactor 14 is switched off, the rotating roller 11 automatically stops rotating, and therefore the roller 11 rotates only when the product 2 reaches above the roller 11, the roller 11 is prevented from idling, electric energy is saved, and idle running abrasion of equipment is reduced. Compare current roll table like this and although increased contactor, auxiliary relay's quantity, nevertheless because its power can be littleer (only satisfy a driving motor power requirement can), equipment total cost increases lessly, shows through practice that, adopts the utility model discloses an behind the energy-conserving roll table, cost-effectiveness is higher, has improved about 50% ~ 70%.

Claims (5)

1. The utility model provides an energy-conserving roll table, includes converter (13), contactor (14), a plurality of roller (11) and with driving motor (12) that roller (11) one-to-one set up, its characterized in that: the device also comprises a controller (16), a control circuit power supply (17) and an inductive switch (15);

the contactors (14) are arranged in one-to-one correspondence with the rollers (11), main contacts of the contactors (14) arranged in one-to-one correspondence with the rollers (11) are electrically connected with the transmission motor (12), and the main contacts of the contactors (14) are electrically connected with the frequency converter (13) so as to form main circuits for respectively controlling the rollers (11) to rotate;

the induction switches (15) and the rollers (11) are arranged in a one-to-one correspondence mode, the induction switches (15) are electrically connected with the control circuit power supply (17) and the controller (16), and signal output contacts on the controller (16) are electrically connected with corresponding control coil contacts of the contactor (14), so that control circuits for respectively controlling the rotation of the rollers (11) are formed.

2. An energy-saving roller way according to claim 1, characterized in that: the controller (16) is an intermediate relay which is arranged corresponding to the rollers (11) one by one.

3. An energy-saving roller way according to claim 1, characterized in that: the control circuit power supply (17) is a 24-volt direct-current power supply.

4. An energy-saving roller way according to claim 1, characterized in that: the inductive switch (15) is a photoelectric switch.

5. An energy-saving roller way according to any one of claims 1 to 4, characterized in that: the main circuit is also provided with a circuit breaker (22) and a motor protection switch (21).

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