CN210705287U - Prefabricated component production line - Google Patents

Abstract

The utility model provides a prefabricated component production line, include the transmission line that a plurality of fixed walking wheels are constituteed and can the bench formwork of transmission line top operation still includes control system, sets up sensor and bench formwork positioning mechanism on the transmission line, control system with sensor, fixed walking wheel and bench formwork positioning mechanism electricity signal connection. The prefabricated part production line of the utility model is provided with the sensor at the specific position of the transmission line, the sensor sends an electric signal to the control system when detecting that the platform die passes through, and the control system sends a control command to the power mechanism of the fixed walking wheel so as to control the opening, stopping, accelerating or decelerating of the active walking wheel; through setting up the bench formwork positioning mechanism, can receive control system's command, let the bench formwork stop in the appointed accurate position of production line.

Description

Prefabricated component production line

Technical Field

The utility model belongs to the technical field of prefabricated component production, concretely relates to prefabricated component production line.

Background

In the prior art, in order to improve the production efficiency, the prefabricated part (PC component) mostly adopts a flow line production mode in a factory. In the production mode of the production line, the bench formwork flows to the corresponding station on each process through the conveying system according to the process sequence, and fixed process operation is carried out on each station. After one-time assembly line production is completed, the bench formwork is cleaned and then enters the next production for recycling. The platform mould sets up on fixed walking wheel top side, and motor drive walking wheel rolls, and the frictional force through walking between wheel and the platform mould bottom flank drives the platform mould and removes along the route that fixed walking wheel was arranged. Because the bench formwork is bulky, the weight is heavy, and the walking wheel drives the in-process that the bench formwork removed, when the bench formwork traveles to target in place, after the system sent the stop signal that targets in place to the motor, the bench formwork still often can continue to move a section distance under inertial effect, and the distance that moves after stopping each time is difficult to accurate control at certain specific numerical value. At some stations of a prefabricated part production line, a manipulator is required to be used for automatically arranging a die, automatically loading a reinforcement cage and a net piece on a table die, or automatically distributing materials at stations of automatic distributing equipment, and because the operations of placing embedded parts, the reinforcement cage or the materials involve the production accuracy of the prefabricated part, the stop position of the table die at the station must be ensured to be accurate. If the deviation of the stop position of the bench die is large, repeated adjustment and correction may be needed manually, so that the production efficiency is reduced and the overall production rhythm is delayed. Therefore, along with the continuous improvement of the automation degree of the industry development, a prefabricated part production line with a bench formwork capable of stopping at a precise position needs to be developed urgently to solve the technical problems that the position deviation of the bench formwork stopping at each station in the prior art is large, the adjustment is inconvenient, and the production efficiency is low or the production precision is poor.

The utility model has the following contents:

the utility model aims at providing a prefabricated component production line, the bench formwork that exists among the solution prior art positional deviation is great when stopping, the technical problem that the production efficiency that causes is low or the production precision is poor.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a prefabricated component production line, includes the transmission line that a plurality of fixed walking wheels are constituteed and can the platform mould of transmission line top operation still includes control system, sets up sensor and platform mould positioning mechanism on the transmission line, control system with sensor, fixed walking wheel and platform mould positioning mechanism electricity signal connection. In this scheme, the bench formwork bottom side is provided with fixed walking wheel, fixed walking wheel is including initiative walking wheel and driven walking wheel, initiative walking wheel and driven walking wheel all set up on the base, and wherein initiative walking wheel still includes power unit. The driving travelling wheel drives a driving wheel on the base to rotate through a power mechanism, friction force between the driving wheel and the bottom surface of the table die drives the table die to advance along the arrangement direction of the transmission line, and the driven wheel plays a guiding role on the table die. The sensor is arranged at a specific position of the conveying line, when the sensor detects that the table mold passes through, the sensor sends an electric signal to the control system, and the control system sends a control command to the power mechanism of the fixed travelling wheels so as to control the starting, stopping, accelerating or decelerating of the active travelling wheels; through setting up the bench formwork positioning mechanism, can receive control system's command, let the bench formwork stop in the appointed accurate position of production line.

On the basis of the foregoing embodiment, preferably, the table die positioning mechanism includes a rack, a gear and a driving mechanism, the rack is disposed on the bottom surface of the table die, the gear is configured to cooperate with the rack, and the driving mechanism drives the gear to rotate. In the scheme, the rack is arranged on the bottom surface of the table die, the gear and the driving mechanism are arranged near the stop position of the table die preset in the production line, and the gear and the rack are matched with each other. When the bench formwork approaches to the preset stop position, the rack and the gear on the bottom surface of the bench formwork start to be meshed, and the driving mechanism starts to rotate at a slow speed after receiving a command sent by the control system. Under the drive of the driving mechanism, the gear is meshed with the rack to drive the bench die to continuously and slowly move forwards in a straight line; when the preset stop position is reached, the driving mechanism is closed, the gear stops rotating, and the table die stops moving and stops at the specified position. This scheme application rack and pinion meshing's characteristic lets bench formwork and stop gear mutually support, can realize the accurate positioning control of bench formwork on the prefabricated component assembly line, and simple structure is reliable, can do the transformation and can accomplish the upgrading on current bench formwork, and the practicality is strong, and the cost is low.

Preferably, the table die positioning mechanism comprises a chain, a chain wheel and a driving mechanism, the chain is arranged on the bottom surface of the table die, the chain wheel is used for being matched with the chain, and the driving mechanism drives the chain wheel to rotate. The chain and the chain wheel in the scheme have the same effect as the gear and the rack in the scheme, the table die is driven to advance along a specific direction by meshing between the chain and the chain wheel, and the driving mechanism receives a command of the control system and closes at a preset position so as to ensure that the table die can accurately stop at the specified position.

Preferably, the prefabricated part production line further comprises a fixed seat, and the gear and the driving mechanism are fixed on the fixed seat. The fixed seat is arranged near a preset bench die stop position on a production line so as to be convenient for fixing the gear and the driving mechanism.

Preferably, the prefabricated part production line further comprises a fixed seat, and the gear and the driving mechanism are fixed on the fixed seat. The fixed seat is arranged near a preset bench formwork stop position on a production line so as to facilitate the fixation of the chain wheel and the driving mechanism.

Preferably, the sensor comprises a first proximity switch, and the first proximity switch is arranged on a base of the fixed travelling wheel; the first proximity switch detects that the bench formwork passes through and sends signals to the control system and the power mechanism of the fixed travelling wheels. In the scheme, a first proximity switch is arranged on a base close to a preset table die stop position, when the first proximity switch detects that the end part of the table die passes through, the first proximity switch sends a signal to a control system and a power mechanism of the fixed travelling wheel, and a controller 1 in the power mechanism receives the signal of the first proximity switch and a command of the control system, namely controls the power mechanism to decelerate, so that the advancing speed of the table die is slowed down, and preparation is made for the next step of stopping movement of the table die; in the process that the bench formwork slowly advances, the bench formwork slowly enters a stop state under the action of the bench formwork positioning mechanism, so that the stop position of the bench formwork can be accurately controlled.

Preferably, the sensor comprises a second proximity switch, and the second proximity switch is arranged on the fixed seat. And the second proximity switch sends a signal to the driving mechanism when detecting that the table die passes. In the scheme, when the second proximity switch detects that the table die passes through, a signal is sent to the control system and the driving mechanism, the controller 2 in the driving mechanism receives the signal of the second proximity switch and a command of the control system, the driving mechanism is started, at the moment, a rack or a chain at the bottom of the table die is meshed with a gear or a chain wheel to drive the table die to slowly advance, after a period of time, the driving mechanism is closed, and the table die reaches a preset stop position. Through setting up the second proximity switch, provide trigger signal for bench formwork positioning mechanism's start-up, the stop position of control bench formwork that can be more accurate.

Preferably, the device further comprises an encoder connected with the driving mechanism, and the encoder is in electric signal connection with the control system. By the arrangement, the encoder can send a pulse signal to the driving mechanism of the table die positioning mechanism, record the running condition of the driving mechanism in real time and feed back the running condition to the control system. Through the monitoring of the encoder to the actuating mechanism, the working condition of the actuating mechanism can be accurately known, so that the running distance of the bench formwork can be calculated, and the more accurate control of the operation of the bench formwork can be realized.

Preferably, the control system is a PLC control system. Through setting up PLC control system, can carry out unified control to fixed walking wheel, bench formwork positioning mechanism and the sensor on the prefabricated component production line.

Preferably, the rack/chain comprises a first rack/chain and a second rack/chain respectively arranged on two sides of the bottom surface of the table die, and the gear/sprocket comprises a first gear/sprocket and a second gear/sprocket, the first rack/chain is matched with the first gear/sprocket, and the second rack/chain is matched with the second gear/sprocket. The rack comprises a first rack and a second rack which are respectively arranged on two sides of the bottom surface of the bench formwork, the stop mechanism comprises a first stop mechanism and a second stop mechanism, the first rack is matched with the first stop mechanism, and the second rack is matched with the second stop mechanism. The rack/chain and the matched gear/chain wheel are respectively arranged on the two sides of the bottom surface of the bench die, so that the uniform stress and the consistent motion state of the two sides of the bench die are ensured, and the motion of the bench die is controlled more uniformly in the operation process.

Preferably, the driving mechanism is a servo motor. The rotation speed of a rotor of the servo motor is controlled by an input signal, the servo motor receives a signal of a PLC control system, can quickly react as an execution element, has the characteristics of small electromechanical time constant, high linearity, starting voltage and the like, and can convert the received electric signal into angular displacement or angular speed on a motor shaft for output. The servo motor can realize very accurate stop positioning of the bench formwork through the meshing of the rack and the gear.

Preferably, the first proximity switch is mounted on the base by a bracket.

The beneficial effects of the utility model reside in that:

according to the scheme, the sensor is arranged at a specific position of the conveying line, when the sensor detects that a platform die passes through, the sensor sends an electric signal to the control system, and the control system sends a control command to the power mechanism for fixing the travelling wheels so as to control the active travelling wheels to start, stop, increase the speed or reduce the speed; through setting up the bench formwork positioning mechanism, can receive control system's command, let the bench formwork stop in the appointed accurate position of production line. In the preferred scheme, a first proximity switch is arranged on a fixed seat for fixing the travelling wheels at a preset position, and when the first proximity switch detects that the end part of the table die passes through, a power mechanism decelerates to slow down the advancing speed of the table die so as to prepare for stopping the movement of the table die; the second proximity switch is arranged at the position close to the preset stop position, when the detection bench die passes through, the driving mechanism is started, the gear/sprocket and the rack/chain are matched to drive the bench die to move finally, and when the driving mechanism is closed, the bench die is guaranteed to stop at the specified position.

Drawings

FIG. 1 is a schematic view of a prefabricated component production line of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

the device comprises a base, a fixed travelling wheel, a base, a power mechanism, a support, a first proximity switch, a rack, a second proximity switch, a gear, a servo motor, an encoder and a fixed seat, wherein the fixed travelling wheel is 2, the base is 3, the power mechanism is 4, the support is 5, the first proximity switch is 6, the gear is 7, the second proximity switch is 8, the gear is 9, the servo motor is 10, the encoder is 11, and the fixed.

Detailed Description

The following are provided as preferred embodiments of the present invention to aid in further understanding of the invention. It should be understood by those skilled in the art that the description of the embodiments of the present invention is exemplary only, and is not intended as limiting the inventive aspects.

As shown in fig. 1 and 2, the prefabricated part production line of the present embodiment includes a conveying line (not numbered) composed of a plurality of fixed traveling wheels 2 and a table mold 1 capable of traveling above the conveying line, wherein the table mold 1 has a size of generally 3m × 9m (only a part of the table mold 1 is illustrated in fig. 1), and the table mold 1 is disposed on a top side of the fixed traveling wheels 2. The production line also comprises a control system, a sensor arranged on the transmission line and a positioning mechanism of the bench formwork 1, wherein the control system is in electric signal connection with the sensor, the fixed walking wheel 2 and the positioning mechanism of the bench formwork 1. In this embodiment, a fixed traveling wheel 2 is arranged on the bottom side of the table die 1, the fixed traveling wheel 2 comprises a driving traveling wheel and a driven traveling wheel, the driving traveling wheel and the driven traveling wheel are both arranged on the base 3, and the driving traveling wheel further comprises a power mechanism 4. The driving travelling wheels and the driven travelling wheels are alternately arranged to drive the table die 1 to circulate according to a certain procedure. The driving travelling wheel drives a driving wheel on the base 3 to rotate through the power mechanism 4, the friction force between the driving wheel and the bottom surface of the table die 1 drives the table die 1 to move forward along the arrangement direction of the transmission line, and the driven wheel plays a guiding role for the table die 1. The power mechanism 4 in this embodiment is a motor, and other prior art power providing devices may be used in other embodiments.

With reference to fig. 2, in this embodiment, the positioning mechanism of the table die 1 on the prefabricated part production line includes a rack 7, a gear 9, a fixing seat 13 and a driving mechanism, the rack 7 is disposed on the bottom surface of the table die 1, the gear 9 and the driving mechanism are fixed on the fixing seat 13, the gear 9 is engaged with the rack 7, and the driving mechanism drives the gear 9 to rotate. A rack 7 is provided on the bottom surface of the table die 1, a gear 9 and a drive mechanism are provided in the vicinity of a stop position of the table die 1 which is predetermined in the production line, and the gear 9 and the rack 7 are engaged with each other. When the table die 1 approaches the preset stop position, the rack 7 and the gear 9 on the bottom surface of the table die 1 start to be meshed, and the driving mechanism starts to rotate at a slow speed after receiving a command sent by the control system. Under the drive of the driving mechanism, the gear 9 is meshed with the rack 7 to drive the bench die 1 to continuously and slowly move forwards in a straight line; when a predetermined stop position is reached, the drive mechanism is turned off, the gear 9 stops rotating, and the table die 1 stops moving and stops at a specified position. The characteristics of 9 rack 7 meshings of this scheme application gears let bench formwork 1 and stop gear mutually support, can realize the accurate positioning control of bench formwork 1 on the prefabricated component assembly line, simple structure can be done the transformation and can accomplish the upgrading on current bench formwork 1, and the practicality is strong, and the cost is low.

In other embodiments, a structure of a chain wheel and a chain may be used instead of the structure of the gear 9 and the rack 7 in this embodiment, wherein the chain is disposed on the bottom side of the table die 1, and the chain wheel is disposed on the fixing seat 13, and the working principle and the implemented function thereof are the same as those of the gear 9 and the rack 7 in this embodiment, and therefore, the description thereof is omitted. In another embodiment, a tooth type ratchet mechanism can be adopted to replace the structure of the gear 9 and the rack 7 in the embodiment, as long as the movement and the stop of the console die 1 can be realized.

The sensor in the embodiment comprises a first proximity switch 6, wherein the first proximity switch 6 is arranged on a base 3 of the fixed travelling wheel 2; in the embodiment, the first proximity switch 6 is a position sensor and can send an in-place signal to the control system when the table die 1 passes through, and the control system sends a speed reduction signal to the power mechanism 4 for fixing the travelling wheels 2. A first proximity switch 6 is arranged on a base 3 close to a preset stop position of a table die 1, when the first proximity switch 6 detects that a first tooth of a rack 7 at the lower end of the table die 1 passes through the proximity switch, a table die 1 in-place signal is sent to a PLC control system, the PLC of the system sends a speed reduction signal to a driving motor of a fixed travelling wheel 2, and after a power mechanism 4 receives the signal, the speed reduction is executed, so that the advancing speed of the table die 1 is reduced as much as possible, and preparation is made for the next stop motion of the table die 1; in the process that the bench die 1 slowly advances, the bench die 1 slowly enters a stop state under the action of the positioning mechanism of the bench die 1, so that the stop position of the bench die 1 can be accurately controlled.

On the basis of the present embodiment, in a more preferred embodiment, the sensor further includes a second proximity switch 8, and the second proximity switch 8 is disposed on the fixing base 13. The second proximity switch 8 is also a position sensor, when detecting that the first tooth tip of the rack 7 below the table die 1 passes through, the second proximity switch sends a table die 1 in-place signal to the PLC control system, and meanwhile, the PLC sends a deceleration signal to the driving motor of the driving mechanism. The gear 9 keeps a specific angle at the moment to ensure that the gear can be meshed with the rack 7 at the bottom side of the table die 1; when the second proximity switch 8 detects that the first tooth at the lower part of the bench formwork 1 is about to be meshed with the gear 9, an in-place signal is sent to the PLC control system, the PLC control system sends a starting signal to the servo motor 10, the servo motor 10 is started, the gear 9 is meshed with the rack 7, and the bench formwork 1 slowly advances under the driving of the gear 9; after reaching the required position, the driving mechanism decelerates and brakes, and the table die 1 reaches a predetermined stop position.

In this embodiment, the driving mechanism is a servo motor 10, and the control system is a PLC control system. The PLC control system can carry out unified control to the prefabricated part production line, receives the signal that the sensor sent in real time to fixed walking wheel 2 and 1 positioning mechanism of platform mould send control command, the operation condition, position and the speed of the more accurate control platform mould 1 of ability guarantee the accurate nature of 1 stop position of platform mould. Under the drive of the servo motor 10, the gear 9 rotates, and the meshing of the gear 9 and the rack 7 drives the table die 1 to continuously and slowly move forwards in a straight line; when the preset stop position of the system is reached, the PLC control system sends an instruction to control the closing of the band-type brake of the driving mechanism, and the platform die 1 stops moving and stops at the specified position.

With continued reference to fig. 1, in a more preferred embodiment, a bracket 5 is provided on the base 3 of the fixed road wheel 2 adjacent to the stop mechanism, and a first proximity switch 6 is fixed on the bracket 5. When the first proximity switch 6 detects that the first tooth of the rack 7 at the bottom side of the table die 1 passes through, a signal is sent to the power mechanism 4 for fixing the walking wheel 2, and the power mechanism 4 is decelerated, so that the advancing speed of the table die 1 is slowed down. Then, in the process of slowly advancing, the table die 1 is close to the second proximity switch 8, after the second proximity switch 8 is triggered, the servo motor 10 is started, the table die 1 is driven to advance through meshing of the rack 7 and the gear 9, and when the table die 1 reaches a preset stop position and the servo motor 10 is in brake engagement, the table die 1 stops moving.

Referring to fig. 2, on the basis of the present embodiment, in a more preferred embodiment, the prefabricated part production line further comprises an encoder 11 connected with the driving mechanism, and the encoder 11 is in communication connection with the PLC control system. Set up like this, encoder 11 sends pulse signal, real-time recording actuating mechanism's operational aspect and feeds back to PLC control system to actuating mechanism, and PLC control system can accurate real time monitoring actuating mechanism's rotation number of revolutions to can monitor the operation of platform mould 1, with the stop position of more accurate control platform mould 1.

On the basis of the present embodiment, in a more preferred embodiment, a first rack 7 and a second rack 7 are symmetrically arranged on both sides of the bottom surface of the table die 1, the stop mechanism includes a first stop mechanism and a second stop mechanism which are symmetrically arranged, the first rack 7 is matched with the first stop mechanism, and the second rack 7 is matched with the second stop mechanism. Due to the arrangement, the racks 7 on the two sides of the table die 1 are matched with the gears 9 in the corresponding stop mechanisms, the stress is uniform, the motion state is consistent, and the motion of the table die 1 can be controlled more uniformly in the stop operation process of the table die 1.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application and not for limiting the protection scope thereof, and although the present application is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: numerous variations, modifications, and equivalents will occur to those skilled in the art upon reading the present application and are within the scope of the claims as issued or as granted.

Claims (10)

1. The utility model provides a prefabricated component production line, includes the transmission line that a plurality of fixed walking wheels are constituteed and can the platform mould of transmission line top operation, its characterized in that still includes control system, sets up sensor and platform mould positioning mechanism on the transmission line, control system with sensor, fixed walking wheel and platform mould positioning mechanism electricity signal connection.

2. The prefabricated member production line of claim 1, wherein the table die positioning mechanism comprises a rack, a gear and a driving mechanism, the rack is arranged on the bottom surface of the table die, the gear is used for being matched with the rack, and the driving mechanism drives the gear to rotate.

3. The precast member production line according to claim 2, further comprising a fixing base to which the gear and the driving mechanism are fixed.

4. The prefabricated member production line of claim 1, wherein the table die positioning mechanism comprises a chain, a chain wheel and a driving mechanism, the chain is arranged on the bottom surface of the table die, the chain wheel is used for being matched with the chain, and the driving mechanism drives the chain wheel to rotate.

5. The precast member production line according to claim 4, further comprising a fixing base to which the sprocket and the driving mechanism are fixed.

6. The precast member production line of claim 3 or 5, wherein the sensor comprises a first proximity switch disposed on a base of the fixed road wheel.

7. The pre-fabricated component production line of claim 6, wherein the sensor further comprises a second proximity switch disposed on the permanent seat.

8. The pre-fabricated component production line of claim 6, further comprising an encoder coupled to the drive mechanism, the encoder being in electrical signal communication with the control system.

9. The precast member production line of claim 7, wherein the control system is a PLC control system.

10. The pre-fabricated component production line of claim 9, wherein the drive mechanism is a servo motor.

Images