CN114988065A

CN114988065A - Automatic centering device

Info

Publication number: CN114988065A
Application number: CN202210774033.6A
Authority: CN
Inventors: 唐湛; 叶雪丽; 周国辉; 袁晓冰
Original assignee: Changhong Meiling Co Ltd
Current assignee: Changhong Meiling Co Ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-09-02

Abstract

The automatic centering device provided by the invention controls the telescopic cylinder and the motor to move through the electric control system. Through the speed reduction position at the conveying line, set up inductive switch on stop position and the connecting plate, inductive switch is to electrical system feedback signal when the default condition triggers, electrical system is according to the flexible cylinder motion of feedback signal control, lift cylinder and motor motion are in order to drive horizontal centering mechanism and vertical centering mechanism motion, and the position of adjustment baffle is in order to realize the horizontal centering and vertically centering of material and material base, the problem of the sign indicating number registration difficulty of sweeping that the material leads to because of the transportation rate change on the conveying line slope or break away from the material base has been solved.

Description

Automatic centering device

Technical Field

The application relates to the technical field of material conveying, in particular to an automatic centering device.

Background

The material conveying line is in the in-process of transporting the material, because of the material difference, its size is all different too. In order to facilitate the registration operations such as overturning and code scanning of the materials, the materials and the bases for material transportation need to be ensured to be in a centered state before registration on the conveying line.

Keep the centering device that adopts among the correlation technique of material and base to only carry out the operation placed in the middle to the material base, keep the material placed in the middle under the circumstances of guaranteeing that the material base is placed in the middle. However, in the transportation process, friction can occur between the material and the base, so that the material inclines, and then code scanning registration cannot be accurately carried out. When the materials and the base enter a deceleration area of a conveying line, the materials are separated from the base and topple over due to inertia, so that accidents are caused.

In order to prevent the problem that the materials incline and fall off to cause the inaccurate code scanning registration, a centering device which simultaneously keeps the base and the materials in a centered state needs to be provided.

Disclosure of Invention

The application provides an automatic centering device to solve the material on the transfer chain because of the household electrical appliances slope that the transport speed change leads to and the unable accurate sign indicating number of sweeping registration that drops and cause.

The application provides an automatic centering device for to the horizontal location placed in the middle of material and material base on the transfer chain, include: the air cylinder assembly comprises an electric control system, an air cylinder assembly and a first baffle plate assembly;

the cylinder assembly includes: the device comprises a telescopic cylinder, a swing rod, a connecting shaft, a rotary rod and a connecting rod; the first baffle assembly includes: guide rods, baffles and connecting plates;

the electric control system is electrically connected with the telescopic cylinder; a piston rod is arranged in the telescopic cylinder and is hinged with the oscillating bar; one end of the connecting shaft is hinged with the oscillating bar; the other end of the connecting shaft is fixed in the middle of the rotary rod; two ends of the rotary rod are respectively hinged with the connecting rod; the connecting rod is fixed on the connecting plate; the connecting plate is connected with the baffle; the connecting plate is provided with a guide hole; the guide rod passes through the guide hole.

Further, the cylinder assembly further comprises a hinged support, and the first baffle assembly (22) further comprises: a shaft sleeve (8); the shaft sleeve is arranged at the joint of the guide rod (7) and the guide hole.

Further, the first baffle assembly (22) further comprises: a support rod (5) and a spring (6); the connecting plate (11) and the baffle (10) are provided with support holes; the supporting rod (5) penetrates through the supporting hole; the connecting plate (11) is connected with the baffle (10) through the supporting rod (5); the spring (6) is sleeved on the support rod (5); the two ends of the spring (6) are respectively connected with the baffle (10) and the connecting plate (11).

Further, the baffle (10) comprises: a material baffle and a base baffle; the distance between the material baffle and the connecting plate (11) is a first distance; the distance between the base baffle and the connecting plate (11) is a second distance; the first distance is not equal to the second distance.

Furthermore, the end part of the piston rod (13) is of a Y-shaped joint structure; the end part of the connecting rod is a Y-shaped joint structure; the piston rod (13) is hinged with the swing rod (212) through the Y-shaped joint structure; two ends of the rotary rod (214) are respectively hinged with the connecting rod (215) through the Y-shaped joint structure.

Furthermore, one end of the connecting shaft (213) is hinged with the swing rod (212) through a key connection; the other end of the connecting shaft (213) is hinged with the rotary rod (214) through key connection.

As can be seen from the above-mentioned technology, the centering device provided by the embodiments of the present application includes a cylinder assembly and a first baffle plate assembly. The telescopic cylinder is controlled by an electric control system to drive the swing rod to move. Because the swing rod is connected with the rotary rod in a key connection mode, the rotary rod also moves along with the movement of the swing rod. The connecting rods are connected to the two ends of the rotary rod and connected with the connecting plates in the baffle plate assembly, so that the connecting rods move along with the movement of the rotary rod. The connecting plate is connected with the baffle through the support column sleeved with the spring. The connecting rod contracts and then drives the baffle to contract, the baffle overcomes elasticity and simultaneously clamps the material and the material base tightly, until the inductive switch arranged on the connecting plate senses that the supporting rod reaches the preset position, the inductive switch feeds back a signal to the electric control system, the electric control system judges that the material and the material base are transversely placed in the middle, and the control swing rod moves in the opposite direction to enable the swing rod to restore the initial state.

Further, the centering device further includes: a motor drive assembly (31) and a second baffle assembly (32);

the motor drive assembly (31) comprises: a drive motor (311), a steering box (312) and a lead screw (313); the second baffle assembly includes: the device comprises a mounting plate (322), a guide rod (7), a shaft sleeve (8), a baffle plate (10) and a connecting plate (11);

the electric control system (12) is electrically connected with the driving motor (311); the driving end of the driving motor (311) is connected with the steering box (312); the mounting plate (322) is provided with a mounting hole; the lead screw (313) passes through the mounting hole and is connected with the steering box (312); a guide hole is formed in the mounting plate (322), the guide rod (7) penetrates through the guide hole, and the shaft sleeve (8) is arranged at the joint of the guide rod (7) and the guide hole; the baffle (10) is connected with the connecting plate (11).

Further, the motor driving assembly (31) further comprises a lead screw nut (314); the lead screw nut (314) is arranged at the joint of the lead screw (313) and the mounting hole.

Further, the second baffle assembly further includes: a lifting cylinder (321); the lifting cylinder (321) is arranged on the mounting plate (322); a piston rod (13) arranged in the lifting cylinder (321) is connected with the connecting plate (11); the electric control system (12) is electrically connected with the lifting cylinder (321).

Further, the electronic control system (12) comprises: a controller and an inductive switch; the controller is electrically connected with the inductive switch; the inductive switch is arranged on the connecting plate (11). The controller is electrically connected with the telescopic cylinder (211); the controller is electrically connected with the driving motor (311);

the controller is configured to: receiving a signal fed back by the inductive switch and controlling the telescopic cylinder (211) to move according to the signal so as to perform centering operation; and controlling the lifting cylinder (321) and the driving motor (311) to perform centering operation according to the signal.

As can be seen from the foregoing technology, the centering device provided in the embodiments of the present application includes a motor driving assembly and a second baffle assembly. Rotate in order to drive the lead screw rotatory through electrical system control motor, and then drive the mounting panel and be close to, the mounting panel is connected with the baffle through the bracing piece that the cover was equipped with the spring, and the baffle moves along with the mounting panel motion and overcomes elasticity and press from both sides material and material base tight, senses the bracing piece and has reachd preset position until the inductive switch who sets up on the lift connecting plate, and inductive switch is to electrical system feedback signal, and electrical system judges that material and material base have vertically been in the centre and control motor reversal, makes centering device resume initial condition.

The automatic centering device provided by the embodiment of the application controls the telescopic cylinder and the motor to move through the electric control system. Through the speed reduction position at the conveying line, set up inductive switch on stop position and the connecting plate, inductive switch is to electrical system feedback signal when the default condition triggers, electrical system is according to the flexible cylinder motion of feedback signal control, lift cylinder and motor motion are in order to drive horizontal centering mechanism and vertical centering mechanism motion, and the position of adjustment baffle is in order to realize the horizontal centering and vertically centering of material and material base, the problem of the sign indicating number registration difficulty of sweeping that the material leads to because of the transportation rate change on the conveying line slope or break away from the material base has been solved.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a roller conveyor line according to an embodiment of the present disclosure;

fig. 2 is a schematic view of a left-right centering structure provided in an embodiment of the present application;

FIG. 3 is a side view of a left-right centering structure provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of a front-to-back centering structure provided by an embodiment of the present application;

FIG. 5 is a top view of a front-to-back centering structure provided by an embodiment of the present application;

fig. 6 is an overall structural diagram of an automatic centering device according to an embodiment of the present application.

Illustration of the drawings:

wherein, 1, a roller conveying line; 111-a frame; 112-a powered roller; 113-a chain; 114-a sprocket; 115-an idler gear; 116-double sprocket; 117-a conveyor chain; 118-a transport motor; 119-motor shaft;

2-left and right centering mechanism; 21-a cylinder assembly; 22-a first baffle assembly; 211-telescopic cylinder; 212-a swing rod; 213-a connecting shaft; 214-a turn lever; 215-connecting rod;

3-front and back centering mechanism; 31-a motor assembly; 32-a second baffle assembly; 311-drive motor; 312-a steering box; 313-a lead screw; 314-lead screw nut; 321-a lifting cylinder; 322-a mounting plate;

4-hinged support; 5-a support rod; 6-a spring; 7-a guide rod; 8-shaft sleeve; 9-open type shaft support; 10-a baffle plate; 11-a connecting plate; 12-an electronic control system; 13-piston rod.

Detailed Description

Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as examples of systems and methods consistent with certain aspects of the application, as detailed in the claims.

In the description of the present invention, it is to be understood that the words "upper", "lower", "left", "right", "front", "rear", and the like, which indicate orientations or positional relationships, are used only for the purpose of describing the present invention and simplifying the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the present invention. For example, the "baffle" and the "front and rear baffles" appearing in the present invention are named for convenience in describing the features of the present invention, and the "baffle" may include "left and right baffles", and the "front and rear baffles" may also include "front and rear baffles", by way of illustration only and not by way of limitation.

The application provides an automatic centering device has solved the material and has swept the sign indicating number problem of registering difficulty because of the transportation speed on the transfer line changes and slope or break away from the material base and lead to. The following describes a centering device provided in the embodiments of the present application in conjunction with a roller conveyor.

Referring to fig. 1, a roller conveyor line is provided, and the centering device provided in this embodiment is suitable for such a conveyor line. The cylinder transfer chain includes: the device comprises a frame, a power roller, a chain wheel, an idler wheel, a double-row chain wheel, a conveying chain, a conveying motor, a motor shaft and a bearing. Wherein: the frame can be assembled by square tube welding or aluminium alloy, the transportation motor is installed on the frame, the transportation motor passes through the key-type connection with the motor shaft, the sprocket is equipped with at the motor shaft both ends, the belt seat bearing is equipped with at the frame top, the sprocket axle is equipped with on the bearing, the double sprocket is equipped with on the sprocket axle, be equipped with the bearing between double sprocket and the sprocket axle, the sprocket on the motor shaft passes through the chain and transmits power to double sprocket, double sprocket and conveying chain mesh, the last idler of being equipped with of conveying chain, the idler position is adjustable, double sprocket drives the conveying chain motion, the conveying chain drives power cylinder rotation, thereby drive base and the material on the cylinder and carry forward.

When the roller conveying line shown in the figure is used for conveying materials, a base is usually configured for the materials so as to reduce friction between the materials and the rollers and play a role in protecting the material shell. When materials are transported, the materials are placed on the material base, and the materials can be transported by the material base moving forward through friction force generated between the material base and the roller. In order to guarantee that material and material base when transporting to the speed reduction region and stop region, can not lead to the material because of the inertia slope or break away from the base because of the transport speed change, this application embodiment provides a centering device.

Referring to fig. 2 and 3, fig. 2 and 3 are block diagrams of a left and right centering structure for centering the material and the lateral direction of the material bed on the conveyor line. The centering device comprises a cylinder assembly and a baffle plate assembly. The cylinder assembly includes: telescopic cylinder, pendulum rod, connecting axle, gyration pole and connecting rod. The baffle plate assembly includes: connecting plate, guide bar, axle sleeve, baffle, spring, bracing piece. A piston rod is arranged in the cylinder and is connected with the oscillating bar through the Y-shaped joint; the swing rod is connected with one end of the connecting shaft through a key; the other end of the connecting shaft is connected with the rotary rod in a key connection mode; two ends of the rotary rod are respectively connected with the connecting rod fixed on the connecting plate through Y-shaped joints;

the connecting plate and the baffle are provided with supporting holes; two ends of the supporting rod are fixed at the supporting hole, and the connecting plate is connected with the baffle through the supporting rod; the connecting plate is connected with the baffle through the supporting rod; the spring is sleeved on the support rod.

In the centering device, a piston rod in a cylinder is connected with a swing rod through a Y-shaped joint, one end of the swing rod is fixed in the Y-shaped joint, and the swing rod can only do reciprocating motion in one plane due to the structural characteristics of the Y-shaped joint. When the piston rod stretches, the length of the swing rod is fixed, so that the swing rod can reciprocate along with the stretching of the piston rod in a specific plane. The other end of the swing rod is provided with a connecting hole for key connection, and one end of the connecting shaft is in key connection with the swing rod at the connecting hole. The key connection realizes circumferential fixation between the shaft and parts on the shaft through keys so as to transmit motion and torque, so that the connecting shaft also performs circumferential motion along with the oscillating bar when the oscillating bar performs reciprocating motion.

The other end of the connecting shaft is connected with the rotary rod through key connection, and the rotary rod moves circumferentially along with the circumferential movement of the connecting shaft. Both ends of the rotary rod are connected with the connecting rod through Y-shaped joints. The connecting rod is fixed on the connecting plate, and the connecting rod drives the connecting plates on the two transverse sides to be close to or far away from simultaneously along with the movement of the rotating rod. The key-connected connecting hole is arranged at the center of the rotary rod to ensure that the movement of the connecting plates at two transverse sides has symmetry and consistency.

The hinged supports are arranged on the connecting plates and used for being connected with the connecting rods, and can restrict the movement in the horizontal/vertical direction, so that the arrangement of the hinged supports can ensure that the connecting plates on two sides only move in the same direction. The connecting plate is also provided with a supporting hole, the baffle is connected with the connecting plate through a supporting rod, one end of the supporting rod penetrates through the supporting hole of the connecting plate and is provided with an open-type shaft support, and the shaft support is used for connecting a frame of the conveying line to play a role in fixed connection. The bracing piece chooses for use the elastic rod and establishes the spring on the cover of pole to make the baffle of both sides also overcome elasticity acting when being drawn the state of pressing from both sides tight material and material base by the motion, when telescopic cylinder is not moving, the spring will resume gradually, and the baffle will also resume gradually to initial position.

The telescopic cylinder also needs a pivot when moving, so a hinged support is also arranged at one end of the telescopic cylinder connected with the frame of the transport line, and the hinged support is used for fixedly connecting the telescopic cylinder and limiting the moving direction of the telescopic cylinder.

In order to ensure that the materials and the material base do not deviate on the roller conveying line, the centering device further comprises a guide rod. And a guide hole is arranged on the connecting plate, and the guide rod passes through the guide hole and is fixed at the bearing on the roller conveying line frame. And baffle and connecting plate when being close to each other/keep away from, accomplish through sliding on the guide bar, the guide bar needs the symmetry to be installed on the connecting plate of both sides in order to ensure that the connecting plate does not have the phenomenon of slope when sliding to guarantee that location is accurate placed in the middle. In order to protect the guide rod, a shaft sleeve is sleeved at the joint of the guide rod and the guide hole.

The telescopic cylinder needs to be driven by the outside to move, the movement efficiency of a piston rod of the telescopic cylinder is controlled by manpower on a transportation line to be too low, and therefore the centering device further comprises an electric control system to achieve automatic centering. The electric control system comprises a controller and an inductive switch, wherein the inductive switch is arranged on a speed reduction position, a stop position and a connecting plate of the roller conveying line. When sensing that the material and the material base are transported to the speed reduction zone, the inductive switch feeds back a signal to the controller, and the controller receives the signal and then controls the cylinder to stretch and retract so as to drive the baffle plate to move to enable the material and the material base to be transversely centered. Inductive switch on the connecting plate then is used for the position of response bracing piece, if the bracing piece has arrived preset position, then inductive switch feeds back the signal to the controller, and the controller judges that material and material base transversely are fixed a position centrally. The inductive switch may perform a desired function, and the specific type is not limited herein.

The in-process of material transportation on the conveying line not only will prevent that the material from transversely inclining or toppling over even, still will prevent that the material from inclining or toppling over in vertical direction, leads to material and material base because of inertial separation, the problem of toppling over for solving because of the change of transport speed, this application embodiment still provides a centering device for guarantee material and material base vertically are placed in the middle.

Referring to fig. 4 and 5, fig. 4 and 5 are structural views of a front-rear centering structure. The centering structure includes: the motor driving assembly and the baffle plate assembly; the motor drive assembly includes: the device comprises a driving motor, a steering box, a lead screw and a bearing with a seat; the baffle plate assembly includes: the device comprises a mounting plate, a lifting cylinder, a lifting connecting plate, a supporting rod and a baffle plate; the motor and the bearing with the seat are both arranged on a frame of the product conveying line; one end of the lead screw is connected with the steering box; the other end of the lead screw is connected with the bearing with the seat; the driving end of the motor is connected with the steering box;

the mounting plate is provided with the lifting cylinder; a piston rod is arranged in the lifting cylinder; the extension end of the piston rod is connected with the connecting plate; the connecting plate and the baffle are provided with supporting holes; the two ends of the supporting rod 1 are fixed at the supporting hole through screws, and the lifting connecting plate is connected with the baffle 3 through the supporting rod 1.

In the centering device, a motor is used as a power source, and the safety of the motor needs to be ensured, so that the motor is arranged on a frame of the roller conveyor line. The driving end of the motor is connected with a steering box, and a connecting channel prepared for a lead screw is arranged in the steering box. The lead screws are driven to rotate through rotation of the motor driving shaft, and the two lead screws connected with the steering box are different in rotating direction, so that the baffles on the two longitudinal sides can move towards the approaching direction or the away direction at the same time when the motor drives the lead screws to rotate.

The mounting plate is provided with a lifting cylinder, a piston rod is arranged in the lifting cylinder, the extensible end of the piston rod is connected with a connecting plate, and the connecting plate is connected with the baffle plate through a supporting rod. The height of the connecting plate can be adjusted by controlling the extension and retraction of the piston rod in the lifting cylinder, and then the height of the baffle plate is adjusted.

Support holes are arranged on the connecting plate and the baffle plate, and the support rod penetrates through the support holes to play a connecting role. One end of the support rod is provided with an open-type shaft support which is connected with a component such as a frame to play a role of connection and fixation, and the other end of the support rod is fixed in a support hole arranged on the baffle plate and fixed by a screw. The support rod is an elastic rod and is sleeved with a spring. So that the baffles on the two sides can overcome the elastic force to do work when being moved and pulled to the state of clamping the material and the material base.

In order to enable the lead screw to drive the mounting plate to move more efficiently through rotation, a lead screw nut is arranged at the joint of the lead screw and the mounting hole of the mounting plate. Screw nut passes through the fix with screw on the mounting panel, and screw nut and lead screw direct contact are and fix on the mounting panel, and when the drive end of motor drove the lead screw rotation under this kind of state, the mounting panel that drives vertical both sides more easily is close to or keeps away from, and then makes the baffle also can contact with material and material base better.

The material and the material base are transported on the transport line, and in order to ensure that the material and the material base are centered on the transport line, the width of the transport line is consistent and parallel to the horizontal plane under the basic condition of transportation. Therefore, the mounting plates are further provided with guide holes, the guide holes are used for accommodating the guide rods, and therefore the guide holes of the mounting plates on the two sides of the guide rods are symmetrically arranged to ensure that the guide rods are parallel to the horizontal plane, and further ensure that the transportation line is parallel to the horizontal plane. The guide rod passes through the guide hole and is fixed on a bearing with a seat, the bearing with the seat is fixed on a frame 11 of the conveying line, and the bearing with the seat is also arranged symmetrically to ensure that the guide rod is parallel to the horizontal plane. In order to protect the guide rod, a shaft sleeve is further arranged at the guide hole of the mounting plate and plays a certain role in buffering and fixing, so that the guide rod is more stable, the loss of the guide rod can be reduced, and the stability of the whole device is improved.

In order to accurately control the motion of the motor and the lifting cylinder, the device also provides an electric control system for controlling the motor and the lifting cylinder. The electric control system comprises a controller and an inductive switch. The controller is electrically connected with the motor, the lifting cylinder and the inductive switch. The controller is configured to: and receiving a signal fed back by the inductive switch, controlling the lifting cylinder and the motor according to the signal, and ensuring that the material on the product conveying line is kept in a longitudinally centered state.

The selection of the inductive switch is freely selected according to a preset condition which needs to be triggered, so that the realization of the function is not limited. The signal transmission mode of the inductive switch and the controller can be flexibly selected according to the field condition, and the wired transmission mode, such as optical fiber, cable and the like, can be adopted on the basis of uncomplicated lines of a transportation line and a centering device; when the circuit is more complicated or inductive switch is in the serious position of wearing and tearing, can adopt inductive switch and controller that have wireless transmission function to carry out information interaction, modes such as wifi, infrared. The controller can also select according to the field situation, for example, when the field signal interference is strong, the plc with strong field interference resistance is selected; and in a scene needing higher control precision, microprocessors such as a single chip microcomputer and the like are selected.

According to the technology, the automatic centering device provided by the application positions the materials and the material bases on the conveying line from the longitudinal direction (front and back) and the transverse direction (left and right) in the middle, so that the materials and the material bases are kept in the middle on the conveying line, and the materials and the material bases cannot topple over due to inertia when entering a deceleration area and stopping the speed change of the conveying speed in the area. The two centering devices can be combined for use in practical application and are uniformly controlled by an electric control system, and the combination of the two centering devices is described below with reference to the embodiment and fig. 6. FIG. 6 is a view of a device incorporating a left-right centering mechanism and a front-back centering mechanism, and FIG. 6 is a view of a centering device having a longitudinal centering function and a transverse centering function.

In one embodiment, the refrigerator is transported and a code scan registration is performed on the refrigerator during the transportation. Firstly, selecting a proper base according to the model of the refrigerator, placing the refrigerator on the base, and entering a conveying line to start transportation. Before a series of operations such as reversing and code scanning registration are carried out on the refrigerator, the refrigerator enters a deceleration area of the conveying line and finally reaches a stopping area so as to prevent the refrigerator from falling off from the base due to sudden stop. The speed reduction position of the speed reduction area of the conveying line is provided with an inductive switch, when the inductive switch induces that the refrigerator is about to enter the speed reduction area, the inductive switch feeds back signals to the controller in real time, the controller raises the front baffle after receiving the signals, and the front baffle is used for absorbing inertia of the base and the refrigerator to protect the refrigerator.

After the front baffle plate rises, the refrigerator and the refrigerator base continue to slow down and move forward until reaching a stopping area, an induction switch arranged in the stopping area senses that the refrigerator is transported to the stopping area and feeds back a signal to the controller in real time, and the controller receives the signal and then controls the lifting cylinder to rise the rear baffle plate. Meanwhile, the controller sends a control instruction to the motor, and the motor rotates to drive the lead screw to rotate so as to drive the front baffle and the rear baffle to simultaneously approach the refrigerator. Because the size of the base is slightly larger than that of the refrigerator, the contact between the partial baffle used for centering the material base in the baffle and the base is earlier than that of the partial baffle used for centering the material, but because the support rod is an elastic rod and is sleeved with a spring, the partial baffle used for centering the material in the baffle can overcome elastic force to do work through the driving of the motor and continuously approaches the refrigerator.

When the baffle is close to the refrigerator and is carried out the drama location, the inductive switch that sets up on the lift connecting plate responds to the position of bracing piece in real time, when treating the bracing piece and reacing preset position, inductive switch feeds back signal to the controller, and the controller judges vertically after receiving the signal that the centering is fixed a position and is accomplished to the reversal of control driving motor makes the mounting panel of both sides resume to initial condition. After the centering is finished, the controller also sends a control instruction to the telescopic cylinder so as to realize transverse centering.

And after receiving a control instruction of the controller, the telescopic cylinder extends the piston rod to control the swing rod to move. The swing rod does arc motion by taking a point connected with the Y-shaped joint as a circle center under the limitation of the Y-shaped joint and drives the connecting shaft. The connecting axle drives the rotary rod to do circumferential motion because of the characteristic that is connected with pendulum rod and rotary rod key, and the rotary rod then drives the connecting rod motion through Y type joint, connects and follows the rotary rod motion and drive mounting panel, the baffle of horizontal both sides to refrigerator and refrigerator base be close to under the restriction of Y type joint. The principle that the baffle plate enables the refrigerator to be positioned in the middle is the same, and the baffle plate can be used for positioning the refrigerator left and right in the middle. And an inductive switch arranged on the connecting plate feeds back signals to the controller, and the controller receives the signals and then controls the telescopic cylinder to retract, so that the baffle plate is restored to the initial state.

In the embodiment, the baffle plates and the baffle plates are driven by the motor or the cylinder, and the distance between the baffle plates has the characteristic of being capable of being adjusted at will. Consequently to the material and the material base of unidimensional not, the centering device homoenergetic that this embodiment provided realizes centering to it to be adapted to the material of various sizes on the transfer line.

The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments that can be extended by the solution according to the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.

Claims

1. An automatic centering device, comprising: an electronic control system (12), a cylinder assembly (21) and a first baffle assembly (22);

the cylinder assembly (21) includes: the device comprises a telescopic cylinder (211), a swing rod (212), a connecting shaft (213), a rotary rod (214) and a connecting rod (215); the first baffle assembly (22) includes: the guide rod (7), the baffle (10) and the connecting plate (11);

the electric control system (12) is electrically connected with the telescopic cylinder (211); a piston rod (13) is arranged in the telescopic cylinder (211), and the piston rod (13) is hinged with the swing rod (212); one end of the connecting shaft (213) is hinged with the swing rod (212); the other end of the connecting shaft (213) is fixed in the middle of the rotary rod (214); two ends of the rotary rod (214) are respectively hinged with the connecting rod (215); the connecting rod (215) is fixed on the connecting plate (11); the connecting plate (11) is connected with the baffle (10); a guide hole is formed in the connecting plate (11); the guide rod (7) passes through the guide hole.

2. The automatic centering device according to claim 1, wherein the first baffle assembly (22) further comprises: a shaft sleeve (8); the shaft sleeve is arranged at the joint of the guide rod (7) and the guide hole.

3. The automatic centering device of claim 1, wherein said first baffle assembly (22) further comprises: a support rod (5) and a spring (6); support holes are formed in the connecting plate (11) and the baffle (10); the supporting rod (5) penetrates through the supporting hole; the connecting plate (11) is connected with the baffle (10) through the supporting rod (5); the spring (6) is sleeved on the support rod (5); the two ends of the spring (6) are respectively connected with the baffle (10) and the connecting plate (11).

4. Automatic centering device according to claim 1, characterized in that said baffle (10) comprises: a material baffle and a base baffle; the distance between the material baffle and the connecting plate (11) is a first distance; the distance between the base baffle and the connecting plate (11) is a second distance; the first distance is not equal to the second distance.

5. Automatic centering device according to claim 1, characterized in that the end of the piston rod (13) is a Y-joint structure; the end part of the connecting rod is a Y-shaped joint structure; the piston rod (13) is hinged with the swing rod (212) through the Y-shaped joint structure; two ends of the rotary rod (214) are respectively hinged with the connecting rod (215) through the Y-shaped joint structure.

6. The automatic centering device according to claim 1, characterized in that one end of said connecting shaft (213) is hinged with a swing link (212) by means of a key connection; the other end of the connecting shaft (213) is hinged with the rotary rod (214) through a key connection.

7. The automatic centering device of claim 1, further comprising: a motor drive assembly (31) and a second baffle assembly (32);

the motor drive assembly (31) comprises: a drive motor (311), a steering box (312), and a screw (313); the second baffle assembly includes: the device comprises a mounting plate (322), a guide rod (7), a shaft sleeve (8), a baffle plate (10) and a connecting plate (11);

8. The automatic centering device of claim 7, further comprising: the motor drive assembly (31) further comprises a lead screw nut (314); the lead screw nut (314) is arranged at the joint of the lead screw (313) and the mounting hole.

9. The automatic centering device of claim 7, wherein said second baffle assembly further comprises: a lifting cylinder (321); the lifting cylinder (321) is arranged on the mounting plate (322); a piston rod (13) arranged in the lifting cylinder (321) is connected with the connecting plate (11); the electric control system (12) is electrically connected with the lifting cylinder (321).

10. Automatic centering device according to claim 6, characterized in that said electronic control system (12) comprises: a controller and an inductive switch; the controller is electrically connected with the inductive switch; the inductive switch is arranged on the connecting plate (11); the controller is electrically connected with the telescopic cylinder (211); the controller is electrically connected with the driving motor (311);