Center line alignment device

Abstract

The invention discloses a center line alignment device which comprises a conveyor, a floating sliding table, an electric cylinder assembly, a camera vision system and a control system. The conveyor is used for receiving the plate blanks conveyed from the previous station and conveying the plate blanks to the veneering station; the conveyor is mounted on the floating sliding table; the shaft end of the electric cylinder assembly is hinged to the conveyor, and the tail end of the motor assembly is hinged to the floating sliding table. The camera vision system is used for acquiring the coordinates of the cross mark on the plate blank and outputting the coordinate information of the cross mark of the plate blank; the control system is in signal connection with the camera vision system and the motor assembly, compares the cross mark coordinate information, received from the camera vision system, of the slab with reference coordinates stored in the control system, calculates the difference value between the two coordinates, outputs control information to the motor assembly, and controls the motor assembly to move; the relative position of the conveyor and the floating sliding table is adjusted, so that the center line of the plate blank on the conveyor is aligned with the center line of the production line.

Description

Technical Field

[0001] The invention relates to the technical field of artificial board slab veneer lines for producing products of limited size, and in particular to a center line alignment device. Background Art

[0002] With the improvement of living standards, people have higher and higher requirements for the aesthetics of the surface of artificial decorative panels. According to the needs of users, more and more manufacturers have begun to use veneer technology to stick a layer of stickers on the surface of artificial boards, making artificial boards both beautiful and practical. However, in the actual veneer production process, before the artificial board blanks enter the press and before the processes such as edge cleaning, graded stacking, etc., the artificial board blanks need to be placed in the central symmetrical position of the production line, so that during hot pressing veneer, the production conditions are relatively uniform, the product quality is stable, and the finished products are neatly stacked. If the centering position is not the same, it will cause difficulties in subsequent edge cleaning, increase the defective rate, and the product placement is uneven, affecting the appearance.

[0003] China utility model patent authorization announcement number CN212126667U discloses a centering structure for a conveying device and a conveying device using the same, comprising: a symmetrically arranged first moving arm and a second moving arm, the first moving arm and the second moving arm are movably arranged on a linear guide rail, the linear guide rail has a first part and a second part, the first moving arm is arranged on the first part, the second moving arm is arranged on the second part, and the first moving arm is configured with a cylinder unit, the cylinder unit is used to drive the first moving arm so that the first moving arm can move along the first part of the linear guide rail to the second part, the first moving arm is also connected to the second moving arm through a chain assembly, so that when the first moving arm moves along the first part of the linear guide rail to the second part, the chain assembly drives the second moving arm to move along the second part of the linear guide rail to the first part, so that the first moving arm and the second moving arm move synchronously to the middle position of the linear guide rail. This patent has the problem of complex structure and difficult maintenance.

[0004] The Chinese utility model patent authorization announcement number CN210210782U discloses an adjustable centering mechanism, including: an adjustment unit and a centering unit, which can use a cylinder to adjust the position of a guide seat and a positioning roller, thereby achieving the positioning of the plate, improving work efficiency and centering accuracy, and facilitating user use. However, the patent requires an adjustment cylinder and a centering cylinder for centering, and therefore requires a complex air path for control, which has low control accuracy, a complex structure, and is difficult to control. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a centerline alignment device with a simple structure and easy maintenance in view of the deficiencies in the prior art.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0007] A centerline alignment device, comprising:

[0008] A conveyor, the conveyor is used to receive the slab delivered from the previous station and transport the slab to the veneer station;

[0009] a floating slide, on which the conveyor is mounted;

[0010] An electric cylinder assembly, wherein the shaft end of the electric cylinder assembly is hinged to the conveyor, and the tail end of the electric cylinder assembly is hinged to the floating slide;

[0011] A camera vision system, the camera vision system is used to obtain the coordinates of the cross mark on the slab and output the coordinate information of the cross mark of the slab;

[0012] A control system is connected to the camera vision system signal and the electric cylinder assembly, and compares the cross mark coordinate information of the slab received from the camera vision system with the reference coordinates stored in the control system, calculates the difference between the two, and outputs control information to the electric cylinder assembly to control the movement of the electric cylinder assembly and adjust the relative position of the conveyor and the floating slide, thereby achieving alignment between the center line of the slab on the conveyor and the center line of the production line.

[0013] In a preferred embodiment of the present invention, the four corners of the conveyor are supported by floating support balls on the four corners of the floating slide, and the middle position of the conveyor is hinged to the middle position of the floating slide.

[0014] In a preferred embodiment of the present invention, a floating support protection device is provided on the outer side of each floating support ball for protecting the four floating support balls.

[0015] In a preferred embodiment of the present invention, there are two sets of electric cylinder assemblies. When the telescopic distances of the electric cylinders in the two sets of electric cylinder assemblies are the same, the conveyor only moves in the Y direction relative to the floating slide; when the telescopic distances of the electric cylinders in the two sets of electric cylinder assemblies are different, the conveyor deflects relative to the floating slide.

[0016] In a preferred embodiment of the present invention, two sets of electric cylinder assemblies are respectively arranged at two ends of the conveyor and the floating slide along the moving direction of the conveyor.

[0017] Due to the adoption of the above technical solution, the present invention adopts a combination of electric cylinder components, camera vision system and control system for centering. Compared with the air cylinder centering device, it has high centering accuracy and has the advantages of simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1The isometric view of a centerline alignment device of the present invention.

[0019] Figure 2 The figure is a front view of a centerline alignment device of the present invention.

[0020] Figure 3 The figure is a top view of a centerline alignment device of the present invention.

[0021] Figure 4 It is a left side view of a center line alignment device of the present invention.

[0022] Figure 5 The figure is a schematic diagram of the adjustment principle of a center line alignment device of the present invention. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] See also Figures 1 to 5 The centerline alignment device shown in the figure includes a conveyor 100, a floating slide 200, an electric cylinder assembly 300a, an electric cylinder assembly 300b, a camera vision system 400 and a control system 500.

[0025] The conveyor 100 is composed of a driving shaft 101, a driving motor 102, a synchronous belt 103a, a synchronous belt 103b, a driven shaft 104a, a driven shaft 104b and a conveyor frame 105. The driving motor 102 drives the synchronous belt 103a and the synchronous belt 103b to operate through the rotation of the driving shaft 101, and the other ends of the synchronous belt 103a and the synchronous belt 103b are respectively connected to the driven shaft 104a and the driven shaft 104b, and all the above components are installed on the conveyor frame 105.

[0026] The floating slide 200 is composed of a floating slide frame 201, a guide rail slider 202, an articulated bearing 203, a floating support ball 204a, a floating support ball 204b, a floating support ball 204c, a floating support ball 204d, a floating support protection device 205a, a floating support protection device 205b, a floating support protection device 205c, and a floating support protection device 205d. The guide rail slider 202 is installed in the middle position of the floating slide frame 201; the lower side of the articulated bearing 203 is connected to the slider of the guide rail slider 202, and the upper side of the articulated bearing 203 is connected to the lower side of the conveyor frame 105; the floating support ball 204a, the floating support ball 204b, the floating support ball 204c and the floating support ball 204d are respectively installed at the four corners of the floating slide frame 201, and the tops of the four floating support balls are in contact with the lower side of the conveyor frame 105; the floating support protection device 205a, the floating support protection device 205b, the floating support protection device 205c, and the floating support protection device 205d are respectively installed at the four corners of the floating slide frame 201, located on the outside of the four floating support balls, and are used to protect the four floating support balls to prevent the conveyor from being damaged by abnormal forces (such as: people stepping on, stacking of items exceeding the specified product weight, etc.).

[0027] The electric cylinder assembly 300 a and the electric cylinder assembly 300 b are respectively disposed at two ends of the conveyor 100 and the floating slide 200 along the moving direction of the conveyor 100 .

[0028] The electric cylinder assembly 300a is composed of a rod end hinge 301a, an electric cylinder 302a, and a tail end hinge 303a; the electric cylinder assembly 300b is composed of a rod end hinge 301b, an electric cylinder 302b, and a tail end hinge 303b. The electric cylinder 302a is connected to one end of the conveyor frame 105 through the rod end hinge 301a, and is connected to one end of the floating slide frame 201 through the tail end hinge 303a; the electric cylinder 302b is connected to the other end of the conveyor frame 105 through the rod end hinge 301b, and is connected to the other end of the floating slide frame 201 through the tail end hinge 303b. When the telescopic distances of the two electric cylinders are the same, the conveyor 100 only moves in the Y direction relative to the floating slide 200; when the telescopic distances of the two electric cylinders are different, the conveyor 100 deflects relative to the floating slide 200.

[0029] The operating principle of the present invention is as follows:

[0030] See also Figure 1 and Figure 5In the figure, coordinates 1'(x1', y1') and 2'(x2', y2') are reference coordinates, and the extension line of the two coordinates coincides with the center line of the production line; coordinates 1(x1, y1) and 2(x2, y2) are measured coordinates. The reference coordinates are determined after the equipment is installed and debugged, and are set in the control system 500; the measured coordinates are obtained by the camera vision system 400 (i.e., the actual position coordinates of the two "cross" marks at both ends of the center line of the slab) and fed back to the control system 500.

[0031] After the conveyor 100 of the present invention receives the slab delivered from the previous workstation, it obtains the measured coordinates 1 (x1, y1) and 2 (x2, y2) of the "cross" mark on the slab through the camera vision system 400, and compares them with the reference coordinates 1' (x1', y1') and 2' (x2', y2') set by the control system 500. The program automatically calculates the values ​​of △y1=y1-y1' and △y2=y2-y2'. Based on this, the control system 500 sends action instructions to the electric cylinder 302a and the electric cylinder 302b to drive the conveyor 100 to move so that the center line of the slab on it coincides with the center line of the production line.

Claims

1. A centerline alignment device, comprising: A conveyor, which is used to receive the slab delivered from the previous station and deliver the slab to the veneer station; characterized in that it also includes: a floating slide, on which the conveyor is mounted; An electric cylinder assembly, wherein the shaft end of the electric cylinder assembly is hinged to the conveyor, and the tail end of the electric cylinder assembly is hinged to the floating slide; A camera vision system, the camera vision system is used to obtain the coordinates of the cross mark on the slab and output the coordinate information of the cross mark of the slab; A control system is connected to the camera vision system signal and the electric cylinder assembly, and compares the cross mark coordinate information of the slab received from the camera vision system with the reference coordinates stored in the control system, calculates the difference between the two, and outputs control information to the electric cylinder assembly to control the movement of the electric cylinder assembly and adjust the relative position of the conveyor and the floating slide, thereby achieving alignment between the center line of the slab on the conveyor and the center line of the production line.

2. A centerline alignment device according to claim 1, characterized in that: The four corners of the conveyor are supported by floating support balls on the four corners of the floating slide, and the middle position of the conveyor is hinged to the middle position of the floating slide.

3. A centerline alignment device according to claim 1, characterized in that: A floating support protection device is arranged on the outer side of each floating support ball to protect the four floating support balls.

4. A centerline alignment device according to claim 1, characterized in that: There are two sets of electric cylinder assemblies. When the telescopic distances of the electric cylinders in the two sets of electric cylinder assemblies are the same, the conveyor only moves in the Y direction relative to the floating slide; when the telescopic distances of the electric cylinders in the two sets of electric cylinder assemblies are different, the conveyor deflects relative to the floating slide.

5. A centerline alignment device according to claim 4, characterized in that: Two sets of electric cylinder components are respectively arranged at two ends of the conveyor and the floating slide along the moving direction of the conveyor.

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