Wood veneer splicing equipment

Abstract

The invention relates to the field of wood processing, and provides veneer splicing equipment which comprises a machine table, a hot melting extrusion splicing mechanism is arranged on the top face of the machine table, and a hot melting glue line is arranged in the hot melting extrusion splicing mechanism; a feeding table is arranged on one side of the machine table, a conveying mechanism is arranged on the feeding table, and two veneers are placed on the conveying mechanism and synchronously conveyed towards the hot melting extrusion splicing mechanism; deviation preventing mechanisms are arranged on the two sides of the conveying mechanism and make contact with the side edges of the veneers; the bottom of the feeding table is further provided with a deviation correcting mechanism with the angle deflecting towards the deviation preventing mechanism, the deviation correcting mechanism makes contact with the bottom face of the wood veneer and drives the wood veneer to deflect towards the deviation preventing mechanism, and then the deviation preventing mechanism limits the wood veneer. The wood veneer conveying device has the effect of stably conveying wood veneers.

Description

Technical Field

[0001] This application relates to the field of wood processing, and particularly to a veneer splicing device. Background Art

[0002] In the traditional wood processing industry, in order to meet different requirements, it is often necessary to splice veneers of smaller sizes into larger area boards. Early methods usually relied on manual splicing, which was not only inefficient but also difficult to guarantee quality. With the progress of technology, although automated equipment has gradually been introduced into this process, most equipment still has problems such as inaccurate positioning and insufficient splicing strength, which directly affect the quality and production cost of the final product.

[0003] In the industry, the splicing of veneers usually uses a simple veneer splicing device for splicing. Generally, the veneer splicing device includes a machine body. Above the machine body, there is a hot melt extrusion splicing structure. Inside the hot melt extrusion splicing structure, there is a hot melt adhesive line that is wound in a drum shape. The two veneers are spliced together by using the hot melt adhesive line, and the surface forms a glue line trace through hot pressing treatment, so as to achieve the firm splicing of the veneers. However, when two veneers need to be spliced, first place the two veneers on both sides of the machine body, and after the ends of the two veneers that are close to each other are made to fit together, then use hands or a mechanical structure to simultaneously send the two veneers into the hot melt pressing splicing structure for splicing.

[0004] This kind of device can achieve a certain degree of automated splicing, but it still cannot completely avoid manual intervention because it is necessary to manually align the corners of the two veneers and then put them into the hot melt splicing structure together, otherwise the positions of the two veneers cannot be guaranteed to be accurate. Summary of the Invention

[0005] In order to improve the above problems, this application provides a veneer splicing device.

[0006] The veneer splicing device provided by this application adopts the following technical solutions: A veneer splicing device includes a machine table, on the top surface of which there is a hot melt extrusion splicing mechanism, and inside the hot melt extrusion splicing mechanism, there is a hot melt adhesive line; on one side of the machine table, there is a feeding table, on which there is a conveying mechanism, and two veneers are placed on the conveying mechanism and are synchronously conveyed towards the hot melt extrusion splicing mechanism; on both sides of the conveying mechanism, there are anti-deviation mechanisms that are in contact with the sides of the veneers; at the bottom of the feeding table, there is also a deviation correction mechanism whose angle deflects towards the anti-deviation mechanism, and the deviation correction mechanism is in contact with the bottom surface of the veneer and drives the veneer to deflect towards the direction of the anti-deviation mechanism, and then the anti-deviation mechanism limits the veneer.

[0007] By adopting the above technical solution, when the conveying mechanism drives the veneer to move towards the hot melt extrusion splicing mechanism, the bottom of the deviation rectifying mechanism synchronously drives the veneer to move. Since the deviation rectifying mechanism is inclined at a preset angle towards the anti-deviation mechanism, the veneer will not only be advanced towards the hot melt extrusion splicing mechanism, but also be pushed by the deviation rectifying mechanism towards the anti-deviation mechanism. Therefore, when the position of the veneer moves or deflects, due to the deviation rectifying effect of the deviation rectifying mechanism, the veneer will only deflect towards the anti-deviation mechanism through the deviation rectifying mechanism, and the anti-deviation mechanism provides a limit to the veneer, blocking the deflection path of the veneer, so that the veneer cannot actually deflect, thus ensuring the accurate position of the veneer during the conveying process.

[0008] Optionally, the anti-deviation mechanism includes anti-deviation parts spaced at a preset distance; a connecting frame is provided between adjacent anti-deviation parts.

[0009] By adopting the above technical solution, during the conveying of the veneer by the conveying mechanism, when the veneer deflects, affected by the deviation rectifying mechanism, the deflection direction will move towards the anti-deviation mechanism. Therefore, when the veneer hits or touches the anti-deviation part, the anti-deviation part limits the deflection path of the veneer, so that the veneer cannot deflect or break away from the anti-deviation part, thus ensuring the accurate conveying of the veneer, and the hot melt extrusion splicing mechanism can accurately provide a hot pressing and splicing effect for the two veneers.

[0010] Optionally, the anti-deviation mechanism further includes a driving member; the driving member is installed on the feeding table, the driving member is provided with a telescopic end, and the telescopic end is connected to the connecting frame; there are several driving members, and all of them synchronously drive the connecting frame to move along the width direction of the feeding table.

[0011] By adopting the above technical solution, the driving direction of the driving member is towards both sides of the feeding end, so that the anti-deviation part and the connecting frame can synchronously move along the width direction of the feeding table, thereby adjusting the positions of the anti-deviation part and the connecting frame in the width direction of the feeding table to adapt to veneers of different sizes and improve the adaptability.

[0012] Optionally, the driving members corresponding to the anti-deviation mechanisms on both sides of the feeding table are arranged oppositely, and when driven synchronously, the driving directions are opposite.

[0013] By adopting the above technical solution, with opposite driving directions, the two anti-deviation mechanisms move towards each other or away from each other. When the two anti-deviation mechanisms move towards each other, the distance between the two anti-deviation mechanisms is shortened to adapt to veneers of smaller sizes. When the anti-deviation mechanisms move away from each other, the distance between the anti-deviation mechanisms is enlarged to adapt to veneers of larger sizes.

[0014] Optionally, the anti-deviation mechanism further includes a detection member; a fixing frame is provided on the feeding table, the detection member is connected to the fixing frame, and the detection member is located above the conveying mechanism, and the detection member is electrically connected to the driving member.

[0015] By adopting the above technical solution, when the veneer moves to the lower part of the detection piece through the conveying mechanism, the detection piece performs image recognition to collect the image data of the veneer, analyzes the size data of the veneer, and then sends a control instruction to the driving piece. The driving piece drives the connecting frame and the anti-deviation part to move to a position that can just fit the veneer according to the size data of the veneer, so as to ensure that the deviation path of the veneer is blocked and the stable conveying of the veneer is ensured.

[0016] Optionally, a limiting groove is provided on the fixing frame; the detection piece is slidably connected to the limiting groove; a moving piece is further provided on the fixing frame, and the moving piece is connected to the detection piece and provides a driving force to drive the detection piece to slide along the limiting groove.

[0017] By adopting the above technical solution, the driving of the moving piece makes the detection piece move along the limiting groove, and the detection position of the detection piece is changed during the movement, so as to perform image recognition on the veneer from multiple directions and angles, improve the accuracy of the recognized image, and accurately analyze the size of the veneer.

[0018] Optionally, a pneumatic mechanism is further provided on the fixing frame; the pneumatic mechanism provides air pressure supply towards the veneer, and the veneer is pressed tightly against the conveying mechanism under the influence of air pressure and is conveyed.

[0019] By adopting the above technical solution, the veneer is pressed tightly against the conveying mechanism under the influence of air pressure. The purpose of the pneumatic mechanism is to prevent the veneer from warping. The pneumatic mechanism generates air flow, and the air flow presses the edges of the veneer, so that the warping of the veneer caused by storage or temperature and humidity problems is pressed tightly and adheres to the conveying mechanism, improving the yield of the splicing.

[0020] Optionally, the pneumatic mechanism includes an air pump and an air nozzle, and an air delivery hose is connected between the air pump and the air nozzle, and the air pump provides air flow supply to the air nozzle.

[0021] By adopting the above technical solution, the air pump provides air flow supply to the air nozzle, and the air nozzle discharges air flow towards the edge between the two veneers, so as to press the veneer tightly and avoid the veneer from warping.

[0022] Optionally, the pneumatic mechanism includes an air pump and a flow dividing cylinder; the flow dividing cylinder is communicated with the air pump; a plurality of flow dividing holes are provided on the flow dividing cylinder, and the flow dividing holes are inclinedly provided, and the inclined direction faces the anti-deviation mechanism.

[0023] By adopting the above technical solution, the airflow flowing out of the diversion holes blows towards the veneer. Under the action of air pressure, the veneer is pressed tightly against the conveying mechanism, enabling the veneer to be stably conveyed by the conveying mechanism, improving the stability of feeding. The inclined diversion holes cause the airflow to flow in an inclined direction when flowing, so that the air pressure exerts pressure on the veneer towards the deviation prevention mechanism side, making the veneer tend to move only towards the deviation prevention mechanism.

[0024] Optionally, a heating element is arranged inside the diversion cylinder, and the heating element provides heat supply.

[0025] By adopting the above technical solution, the heating element can generate heat and provide heat supply. When the airflow passes through the heating element, it can drive the heat to be discharged towards the diversion holes, thereby preheating the veneer. The preheating can make the surface of the veneer contain heat. When entering the hot melt extrusion splicing mechanism, when the hot melt adhesive line contacts the preheated veneer, it can be more easily melted and spliced with the veneer.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the conveying mechanism drives the veneer to move towards the hot melt extrusion splicing mechanism, the bottom of the deviation rectifying mechanism synchronously drives the veneer to move. Since the deviation rectifying mechanism is inclined at a preset angle towards the deviation prevention mechanism, on the basis of the veneer moving forward towards the hot melt extrusion splicing mechanism, the veneer will also be subject to the driving force of the deviation rectifying mechanism pushing towards the deviation prevention mechanism. Therefore, when the position of the veneer moves or deflects, due to the deviation rectifying effect of the deviation rectifying mechanism, the veneer will only deflect towards the deviation prevention mechanism through the deviation rectifying mechanism, and the deviation prevention mechanism provides a limit to the veneer, blocking the deflection path of the veneer, so that the veneer cannot actually deflect, thus ensuring the accurate position during the conveying process of the veneer. 2. When the veneer deviates during the conveying process by the conveying mechanism and is affected by the deviation rectifying mechanism, the deviation direction will move towards the deviation prevention mechanism. Therefore, when the veneer impacts or touches the deviation prevention part, the deviation prevention part limits the deviation path of the veneer, so that the veneer cannot deviate or break away from the deviation prevention part, thus ensuring the accurate conveying of the veneer, and the hot melt extrusion splicing mechanism can accurately provide a hot pressing and splicing effect for the two veneers. 3. The driving direction of the driving part is towards both sides of the feeding end, so that the deviation prevention part and the connecting frame can move synchronously along the width direction of the feeding table, thereby adjusting the positions of the deviation prevention part and the connecting frame in the width direction of the feeding table to adapt to veneers of different sizes and improve the adaptability. 4. The driving directions are opposite, so that the two deviation prevention mechanisms move towards each other or away from each other. When the two deviation prevention mechanisms move towards each other, the distance between the two deviation prevention mechanisms is shortened to adapt to veneers of smaller sizes. When the deviation prevention mechanisms move away from each other, the distance between the deviation prevention mechanisms is enlarged to adapt to veneers of larger sizes. Description of the Drawings

[0027] Figure 1 It is a schematic three-dimensional structure diagram of a veneer splicing device in an embodiment of the present application; Figure 2 It is a schematic bottom view structure diagram of a feeding table in some embodiments of the present application; Figure 3 It is a schematic first cross-sectional structure diagram of a feeding table in some embodiments of the present application; Figure 4 It is a schematic second cross-sectional structure diagram of a feeding table in some embodiments of the present application; Figure 5 It is a schematic third cross-sectional structure diagram of a feeding table in some embodiments of the present application; The reference signs in the drawings are: 1, machine table; 2, hot melt extrusion splicing mechanism; 3, feeding table; 31, fixing frame; 311, limiting groove; 312, detecting member; 313, moving member; 4, conveying mechanism; 5, anti-deviation mechanism; 51, anti-deviation portion; 52, connecting frame; 53, driving member; 6, deviation rectifying mechanism; 7, pneumatic mechanism; 71, air pump; 72, air nozzle; 73, shunt cylinder; 731, shunt hole; 74, heating member. Detailed Embodiments

[0028] The following uses specific specific examples to illustrate the embodiments of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the information disclosed in the present application. The present application can also be implemented or applied through other different specific embodiments. Various details in the present application can also be modified or changed according to different viewpoints and applications without departing from the spirit of the present application. It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be combined with each other.

[0029] The following takes the drawings as a reference and details the embodiments of the present application so that those skilled in the technical field to which the present application belongs can easily implement it. The present application can be embodied in many different forms and is not limited to the embodiments described herein.

[0030] In the description of the present application, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples.

[0031] In addition, the terms "first" and "second" are only used to indicate a target and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the representation of this application, "a plurality of" means two or more, unless otherwise specifically defined.

[0032] Throughout the specification, when it is said that a device is "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" where other elements are placed therebetween. Additionally, when it is said that a certain device "includes" a certain component, unless there is a particularly contrary record, it does not exclude other components but means that other components may also be included.

[0033] The following Figure 1 - Figure 5 is further described in detail with reference to the accompanying

[0034] An embodiment of this application discloses a veneer splicing device.

[0035] A veneer splicing device, as shown in the reference Figure 1 , includes a machine table 1. The machine table 1 can be a large table or a workbench surface. A hot melt extrusion splicing mechanism 2 is provided on the top surface of the machine table 1, and a hot melt adhesive line for drum-type unwinding and conveying is provided inside the hot melt extrusion splicing mechanism 2. The hot pressing end of the hot melt extrusion splicing mechanism 2 can heat the hot melt adhesive line and then hot press it onto two veneers to splice the two veneers using the hot melt adhesive line. After the hot melt adhesive line re-solidifies, the two veneers are spliced into a complete veneer.

[0036] On one side of the machine table 1, there is a feeding table 3. The feeding table 3 can be another workbench, which is used to pre-place the veneers in contact with each other to facilitate accurate pushing into the hot melt extrusion splicing mechanism 2. A conveying mechanism 4 is provided on the feeding table 3. The number of the conveying mechanisms 4 can be determined according to the complete size required for veneer splicing. Two veneers are placed on the conveying mechanism 4 and are synchronously conveyed towards the hot melt extrusion splicing mechanism 2. The conveying mechanism 4 can adopt a conveyor belt structure or a conveying roller group, and the setting style is determined according to actual requirements.

[0037] Anti-deviation mechanisms 5 are provided on both sides of the conveying mechanism 4. The anti-deviation mechanisms 5 are in contact with the sides of the veneers. When the conveying mechanism 4 synchronously conveys two veneers, the positions of the two veneers are likely to shift during the conveying process, resulting in the separation of the two veneers. When they are conveyed to the hot melt extrusion splicing mechanism 2, the two veneers are separated and the splicing effect cannot be achieved. Therefore, when the veneers deviate, the deviation paths of the veneers are restricted by the anti-deviation mechanisms 5, thereby ensuring the accurate conveying position of the veneers.

[0038] A deviation correcting mechanism 6 is also provided at the bottom of the feed table 3, which is angled toward the anti-deflection mechanism 5. Since the anti-deflection mechanism 5 is located on both sides of the feed table 3, the two side edges of the two venes are prevented from deflecting to ensure that the two venes do not exceed the range of the feed table 3. However, if the venes deviate in relative directions, the anti-deflection mechanism 5 cannot provide anti-deflection. Therefore, the deviation correcting mechanism 6 is provided, and the deviation correcting mechanism 6 is used to correct the conveying direction of the venes.

[0039] The correcting mechanism 6 is in contact with the bottom surface of the veneer. When the conveying mechanism 4 drives the veneer to move toward the hot-melt extrusion splicing mechanism 2, the bottom of the correcting mechanism 6 synchronously drives the veneer to move. The correcting mechanism 6 is inclined at a preset angle toward the anti-deflection mechanism 5, so that the veneer is not only moved toward the hot-melt extrusion splicing mechanism 2, but also pushed by the correcting mechanism toward the anti-deflection mechanism 5. Therefore, when the veneer moves or deflects, due to the correcting effect of the correcting mechanism 6, the veneer will only deflect toward the anti-deflection mechanism 5 through the correcting mechanism 6, and the anti-deflection mechanism 5 provides a limit for the veneer, blocks the deflection path of the veneer, and prevents the veneer from actually deflecting, thereby ensuring the accurate position of the veneer during the conveying process.

[0040] Among them, the correction component includes a correction wheel and a mounting frame. The mounting frame is connected to the feed table 3. The correction wheel is pivotally connected along the mounting frame, and the mounting frame is tilted toward the anti-deviation mechanism 5. It can be tilted at about 5-10°. There is no need to tilt too large an angle. It is only necessary for the anti-deviation wheel to provide a slight guiding effect on the veneer.

[0041] The mounting frame may also be provided with a correction motor, which drives the correction wheel to rotate and is driven synchronously with the conveying mechanism 4. The correction motor can make the correction wheel follow the conveying, thereby improving the conveying stability of the veneer.

[0042] For further reference, Figure 1 As shown, the anti-skewness mechanism 5 includes anti-skewness parts 51 spaced at a preset distance. The anti-skewness parts 51 can be anti-skewness wheels, and an annular groove is opened on the anti-skewness wheel. The groove wall of the annular groove can be an arc groove wall or a U-shaped groove wall. The edge of the veneer is located in the annular groove. A connecting frame 52 is provided between adjacent anti-skewness parts 51, and the connecting frame 52 is installed on the feeding table 3. The anti-skewness parts 51 can rotate along the connecting frame 52. When the corners of the veneer are inserted into the annular groove, the groove wall of the annular groove can limit the vertical direction of the veneer to prevent the veneer from escaping from the annular groove. At the same time, one side of the veneer is limited so that the veneer cannot move out of the limiting range of the annular groove.

[0043] Specifically, when the veneer is offset during the process of being conveyed by the conveying mechanism 4, it is affected by the deviation rectifying mechanism 6, and the offset direction will move towards the anti-offset mechanism 5. Therefore, when the veneer impacts or touches the anti-offset part 51, the anti-offset part 51 limits the veneer within the range of the annular groove through the annular groove, so that the veneer cannot be offset or separated from the annular groove, thus ensuring the accurate conveyance of the veneer, and the hot melt extrusion splicing mechanism 2 can accurately provide a hot pressing and splicing effect for the two veneers.

[0044] On the other hand, the anti-offset mechanism 5 can also adopt anti-offset rollers and an anti-offset belt. There are two groups or at least two groups of anti-offset rollers. When two groups are used, they are respectively located at one end of the feeding table 3 close to the machine table 1 and the end far from the machine table 1. When there are at least two groups, one group is arranged at a preset interval. The anti-offset belt is sleeved on the two anti-offset rollers, and the anti-offset belt provides partial elasticity, so that when the veneer impacts or is offset and contacts the anti-offset belt, it can be reset under the influence of the elasticity.

[0045] If the connecting frame 52 is set, the connecting frame 52 can connect all the anti-offset rollers to each other to improve the installation stability.

[0046] Furthermore, any group of anti-offset rollers can be connected to a driving motor, and the driving speed of the driving motor is the same as that of the conveying mechanism 4, so that the anti-offset belt can rotate synchronously. When the veneer contacts the anti-offset belt, the veneer is synchronously subjected to the driving force provided by the anti-offset belt in the direction towards the hot melt extrusion splicing mechanism 2 to improve the conveyance stability.

[0047] Both of the above two embodiments of the anti-offset mechanism 5 can realize the anti-offset function of the anti-offset belt, and the illustration takes the anti-offset part 51 as an example.

[0048] In some embodiments, referring to Figure 2 As shown, the anti-offset mechanism 5 further includes a driving member 53; the driving member 53 is installed at the bottom of the feeding table 3 and is installed horizontally, and the driving direction is the width direction of the feeding table 3. The driving member 53 is provided with a telescopic end, and the telescopic end is connected to the connecting frame 52. In order to ensure sufficient driving force, there can be several driving members 53, and they all drive the connecting frame 52 to move synchronously. The driving member 53 can adopt any electric structure such as a cylinder, an electric cylinder, or an electric push rod. The telescopic end of the driving member 53 can drive the connecting frame 52 to move, so that the connecting frame 52 synchronously drives all the anti-offset parts 51 to move.

[0049] The driving direction of the driving member 53 is towards both sides of the feeding end, so that the anti-offset part 51 and the connecting frame 52 can synchronously move along the width direction of the feeding table 3, thereby adjusting the positions of the anti-offset part 51 and the connecting frame 52 in the width direction of the feeding table 3 to adapt to veneers of different sizes and improve the adaptability.

[0050] Further, the anti-deviation mechanisms 5 on both sides of the feeding table 3 have corresponding driving members 53 arranged oppositely. When driven synchronously, the driving directions are opposite, causing the two anti-deviation mechanisms 5 to move towards each other or away from each other. When the two anti-deviation mechanisms 5 move towards each other, the distance between the two anti-deviation mechanisms 5 is shortened to adapt to veneers with smaller sizes. When the anti-deviation mechanisms 5 move away from each other, the distance between the anti-deviation mechanisms 5 is enlarged to adapt to veneers with larger sizes.

[0051] Among them, when using the driving member 53, a fitting groove for corresponding movement can be opened on the corresponding feeding table 3 to ensure that the anti-deviation part 51 will not hit the table wall of the feeding table 3 during the movement process.

[0052] Furthermore, referring to Figure 3 As shown, the anti-deviation mechanism 5 further includes a detection member 312; a fixing frame 31 is provided on the feeding table 3. The fixing frame 31 is erected in the vertical direction and spans above the feeding table 3 in the width direction of the feeding table 3. The detection member 312 is connected to the fixing frame 31 and is located above the conveying mechanism 4. The detection member 312 can adopt a CCD image recognition camera and a controller. The detection direction of the CCD image recognition camera faces the feeding table 3. When the veneer moves below the CCD image recognition camera, the CCD image device camera performs image recognition on the veneer to obtain the overall image information of the veneer, and at the same time sends the image information to the controller. The controller analyzes the image information to obtain the size data of the veneer.

[0053] The detection member 312 is electrically connected to the driving member 53. The electrical connection method can be a circuit connection or a radio signal connection. For example, if an electrical signal connection is adopted, signal transceivers are provided on both the driving member 53 and the detection member 312. After the controller in the detection member 312 obtains the size data of the veneer, it sends a control instruction to the driving member 53 according to the size data. The driving member 53 responds to the control instruction and drives the connecting frame 52 and the anti-deviation part 51 to move to a position that can just fit the veneer according to the size data of the veneer, so as to ensure that the deviation path of the veneer is blocked and the stable conveying of the veneer is ensured.

[0054] Specifically, when the veneer moves below the detection member 312 through the conveying mechanism 4, the detection member 312 performs image recognition to collect the image data of the veneer, analyzes the size data of the veneer, and then sends a control instruction to the driving member 53. The driving member 53 drives the connecting frame 52 and the anti-deviation part 51 to move to a position that can just fit the veneer according to the size data of the veneer, so as to ensure that the deviation path of the veneer is blocked and the stable conveying of the veneer is ensured.

[0055] Furthermore, referring to Figure 3As shown, a limiting groove 311 is formed on the fixing bracket 31; the detecting member 312 is slidably connected to the limiting groove 311; a moving member 313 is further provided on the fixing bracket 31. The moving member 313 can adopt components such as a cylinder, an electric push rod, and a lead screw structure. In the figure, a magnetic coupling rodless cylinder is taken as an example.

[0056] The moving member 313 is connected to the detecting member 312. The moving member 313 can drive the detecting member 312 to slide along the limiting groove 311, thereby changing the position of the detecting member 312 on the fixing bracket 31.

[0057] Specifically, by using the drive of the moving member 313, the detecting member 312 moves along the limiting groove 311. During the moving process, the detecting position of the detecting member 312 is changed, so as to perform image recognition on the veneer from multiple directions and angles, improve the accuracy of the recognized image, and accurately analyze the size of the veneer.

[0058] Among them, the detecting member 312 can provide multiple groups of image data from multiple directions and angles, and then compare all the image data to obtain the average value of all the veneer size data, so as to further obtain the accurate veneer size.

[0059] In some embodiments, referring to Figure 4 As shown, a pneumatic mechanism 7 is further provided on the fixing bracket 31; the pneumatic mechanism 7 provides pneumatic supply towards the veneer. The veneer is affected by the air pressure and is tightly attached to the conveying mechanism 4 for conveying. The purpose of the pneumatic mechanism 7 is to prevent the veneer from warping. The pneumatic mechanism 7 generates air flow, and the air flow presses the edge of the veneer, so that the warping of the veneer caused by storage or temperature and humidity problems is pressed tightly and attached to the conveying mechanism 4, improving the yield of the splicing.

[0060] Among them, under the blowing of the pneumatic mechanism 7, the veneer will not shift inwards. With the anti-offset mechanism 5 provided on both sides of the feeding table 3 to prevent offset, the veneer cannot shift outwards either, thus ensuring stable conveying.

[0061] Furthermore, the pneumatic mechanism 7 includes an air pump 71 and an air nozzle 72. An air delivery hose is connected between the air pump 71 and the air nozzle 72. The air pump 71 provides air flow supply to the air nozzle 72. The air nozzle 72 discharges air flow towards the edge between the two veneers, thereby pressing the veneer tightly to avoid situations such as warping of the veneer.

[0062] Among them, the air delivery hose can be connected with an electric winding wheel. When the electric winding wheel can follow the moving member 313 to drive the detecting member 312 and the air nozzle 72 to move, it can wind or unwind to ensure stable air flow delivery. And the air delivery hose has elasticity. For an air delivery hose with good elasticity, the electric winding wheel may not be required.

[0063] Among them, the air nozzle 72 is located on the side of the detection part 312 close to the hot melt extrusion splicing mechanism 2. That is, first, the image of the detection part 312 is collected, and then the air nozzle 72 sprays out air flow to provide air pressure.

[0064] Among them, when the detection part 312 analyzes through the image that there is a warped edge in the veneer, the detection part 312 can synchronously drive the air nozzle 72 to move along the limit groove 311 through the moving part 313, so as to change the position of the air nozzle 72. When the air nozzle 72 moves to the warped edge, the air pump 71 can increase the output power to increase the air pressure, and use the air nozzle 72 to flatten the warped edge, thereby reducing the situation of veneer warping.

[0065] Furthermore, referring to Figure 5 As shown, the air pressure mechanism 7 includes an air pump 71 and a shunt cylinder 73. The shunt cylinder 73 is communicated with the air pump 71; a number of shunt holes 731 are opened on the shunt cylinder 73, and the shunt holes 731 are inclined to be opened, and the inclined direction faces the anti-deviation mechanism 5. The inclined shunt holes 731 make the air flow flow in an inclined direction when flowing, so that the air pressure will apply pressure to the veneer on the side of the anti-deviation mechanism 5. In addition to the pressure applied to the veneer by the conveying mechanism 4, the veneer will also be subjected to the pressure towards the anti-deviation mechanism 5, but the pressure towards the anti-deviation mechanism 5 is much smaller than the pressure of the conveying mechanism 4, so that the veneer only has a tendency to move towards the anti-deviation mechanism 5. When the veneer is affected by external forces or other factors such as vibration, the veneer moves towards the anti-deviation mechanism 5 according to the force, and then the anti-deviation mechanism 5 limits and prevents the deviation of the veneer.

[0066] The air flow flowing out of the shunt hole 731 blows towards the veneer, and the veneer is attached to the conveying mechanism 4 under the action of the air pressure, so that the veneer can be stably conveyed by the conveying mechanism 4, improving the stability of feeding.

[0067] Furthermore, a heating element 74 is arranged in the shunt cylinder 73 to provide heat supply. The heating element 74 can adopt a heating tube or a heating wire. The heating element 74 can generate heat to provide heat supply. When the air flow passes through the heating element 74, it can drive the heat to be discharged towards the shunt hole 731, thereby preheating the veneer. The preheating can make the surface of the veneer contain heat. When entering the hot melt extrusion splicing mechanism 2, when the hot melt adhesive line contacts the preheated veneer, it can be more easily melted and spliced with the veneer.

[0068] At the same time, in case of humid weather and when the veneer is too wet, the heat of the heating element 74 can also provide a drying effect to avoid abnormal phenomena when the wet veneer is spliced.

[0069] On the other hand, a small heating element 74 can also be arranged in the air nozzle 72. When the detection part 312 cooperates with the moving part 313 to eliminate the warped edge, the warped edge can be more easily flattened through the heated air flow.

[0070] The embodiments of the specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Identical components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A veneer splicing device, comprising a machine platform (1), a top surface of which is provided with a hot melt extrusion splicing mechanism (2), and a hot melt adhesive line is provided inside the hot melt extrusion splicing mechanism (2), characterized in that: A feeding table (3) is provided on one side of the machine (1), and a conveying mechanism (4) is provided on the feeding table (3). Two veneers are placed on the conveying mechanism (4) and are synchronously conveyed toward the hot melt extrusion splicing mechanism (2); anti-deflection mechanisms (5) are provided on both sides of the conveying mechanism (4), and the anti-deflection mechanisms (5) are in contact with the side edges of the veneers; a correction mechanism (6) is also provided at the bottom of the feeding table (3) and is deflected toward the anti-deflection mechanism (5); the correction mechanism (6) is in contact with the bottom surface of the veneer and drives the veneer to deflect toward the anti-deflection mechanism (5), and the veneer is then limited by the anti-deflection mechanism (5).

2. The veneer splicing device according to claim 1, characterized in that: The anti-deflection mechanism (5) comprises anti-deflection parts (51) spaced at a preset distance; adjacent anti-deflection parts (51) are connected by connecting frames (52).

3. The veneer splicing device according to claim 2, characterized in that: The anti-deflection mechanism (5) further comprises a driving member (53); the driving member (53) is mounted on the feed platform (3); the driving member (53) is provided with a telescopic end, and the telescopic end is connected to the connecting frame (52); a plurality of driving members (53) are provided, and all of them synchronously drive the connecting frame (52) to move along the width direction of the feed platform (3).

4. The veneer splicing device according to claim 3, characterized in that: The anti-deflection mechanisms (5) on both sides of the feed platform (3) and the corresponding driving members (53) are arranged relatively to each other, and when driven synchronously, the driving directions are opposite.

5. The veneer splicing device according to claim 4, characterized in that: The anti-deflection mechanism (5) further comprises a detection member (312); a fixing frame (31) is provided on the feed table (3); the detection member (312) is connected to the fixing frame (31), and the detection member (312) is located above the conveying mechanism (4); the detection member (312) is electrically connected to the driving member (53).

6. The veneer splicing device according to claim 5, characterized in that: A limiting groove (311) is provided on the fixed frame (31); the detection member (312) is slidably connected to the limiting groove (311); a moving member (313) is also provided on the fixed frame (31), the moving member (313) is connected to the detection member (312) and provides a drive for driving the detection member (312) to slide along the limiting groove (311).

7. The veneer splicing device according to claim 6, characterized in that: The fixing frame (31) is also provided with an air pressure mechanism (7); the air pressure mechanism (7) provides air pressure supply toward the veneer, and the veneer is transported close to the conveying mechanism (4) under the influence of the air pressure.

8. The veneer splicing device according to claim 7, characterized in that: The air pressure mechanism (7) comprises an air pump (71) and an air nozzle (72); an air hose is provided between the air pump (71) and the air nozzle (72); the air pump (71) provides air flow to the air nozzle (72).

9. The veneer splicing device according to claim 7, characterized in that: The air pressure mechanism (7) comprises an air pump (71) and a flow dividing cylinder (73); the flow dividing cylinder (73) is in communication with the air pump (71); a plurality of flow dividing holes (731) are provided on the flow dividing cylinder (73), and the flow dividing holes (731) are inclined, with the inclination direction facing the anti-deflection mechanism (5).

10. The veneer splicing device according to claim 9, characterized in that: A heating element (74) is arranged in the diversion cylinder (73), and the heating element (74) provides heat supply.

Images