Precise positioning and patching device for birch veneers and operation process of precise positioning and patching device

Abstract

The invention relates to the technical field of birch processing, and discloses a birch veneer accurate positioning patching device which comprises a conveying assembly and a patching assembly. The invention further discloses an operation process of the precise positioning and patching device for the birch veneers. The operation process comprises the following steps that firstly, early-stage preparation is conducted; 2, single plate conveying and positioning; 3, accurate patching operation is carried out; 4, accurate patching operation is carried out; step 5, follow-up treatment and circulation; and step 6, follow-up treatment and circulation. Through cooperative use of the conveying assembly and the patching assembly, accurate movement of a drill bit can be achieved, it is ensured that tiny defects on birch veneers are accurately patching, the device can adapt to birch veneers of different thicknesses, the application range of the device is expanded, it is ensured that the veneers do not slip or deviate in the conveying process, and the patching quality stability is improved; the height of the frame body can be easily adjusted, the conveying speed and stability of the birch veneers are guaranteed, and the patching efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of birch processing, and in particular to a precise positioning and patching device for birch veneer, and also includes an operation process of the precise positioning and patching device for birch veneer. Background Art

[0002] In recent years. Summary of the Invention

[0003] In view of the problems existing in the above-mentioned existing precise positioning and patching device for birch veneer, the present invention is proposed.

[0004] Therefore, the object of the present invention is to provide a precise positioning and patching device for birch veneer, and its purpose lies in:

[0005] To solve the above technical problems, the present invention provides the following technical solutions: including, wherein

[0006] A precise positioning and patching device for birch veneer, including,

[0007] A conveying component, including a bracket, a frame inserted at the upper end of the bracket, a fixing plate fixedly connected to the side wall of the frame, and a driving roller shaft rotatably connected to the side wall of the fixing plate, and the driving roller shaft is installed above the bracket;

[0008] A patching component, including a cross beam fixedly connected to the end of the fixing plate, a top plate movably inserted in the middle of the cross beam, a connecting piece slidably clamped to the bottom side wall of the top plate, a driving motor fixedly installed on the side wall of the connecting piece, and a drill bit adaptively installed at the output end of the driving motor, and the end of the drill bit extends above the driving roller shaft.

[0009] As a preferred solution of the precise positioning and patching device for birch veneer of the present invention, wherein: the patching component further includes a translation motor fixedly connected to the side wall of the top plate, and a translation lead screw fixedly connected to the output end of the translation motor, and the translation lead screw is threadedly connected to the center of the connecting piece, and the end of the translation lead screw is installed on the side wall of the top plate through a bearing.

[0010] As a preferred solution of the precise positioning and patching device for birch veneer of the present invention, wherein: the patching component further includes a cylinder fixedly connected to the top of the cross beam, and the output end of the cylinder is fixedly connected to the upper end of the top plate.

[0011] As a preferred solution of the precise positioning and patching device for birch veneer of the present invention, wherein: the conveying component further includes a rubber sleeve encapsulated on the side wall of the driving roller shaft, and the rubber sleeves are evenly distributed on the side wall of the driving roller shaft.

[0012] As a preferred solution of the birch veneer precise positioning and patching device of the present invention, the following applies: The conveying component further includes a mounting seat inserted into the side wall of the frame body, an auxiliary roller rotatably connected to the side wall of the mounting seat, and an adjusting seat inserted into the middle side wall of the frame body. The auxiliary roller is used in cooperation with the transmission roller shaft. The adjusting seat and the side wall of the mounting seat are provided with mounting grooves for cooperation. The end of the auxiliary roller is rotatably clamped in the middle of the mounting groove of the adjusting seat.

[0013] As a preferred solution of the birch veneer precise positioning and patching device of the present invention, the following applies: The conveying component further includes a support rod fixedly connected to the side wall of the bracket, and a sliding member slidably mounted on the side wall of the support rod. The side wall of the sliding member is bolted to the lower side wall of the frame body.

[0014] As a preferred solution of the birch veneer precise positioning and patching device of the present invention, the following applies: The conveying component further includes a lifting screw rod rotatably mounted on the side wall of the bracket, a ball nut fitted on the side wall of the lifting screw rod, a worm rotatably mounted on the side wall of the bracket, and a worm gear fixedly connected to the lower end of the lifting screw rod. The side wall of the worm is engaged with the side wall of the worm gear. A handle is installed at the end of the worm. The side wall of the ball nut is fixedly connected to the side wall of the frame body.

[0015] As a preferred solution of the birch veneer precise positioning and patching device of the present invention, the following applies: The conveying component further includes an auxiliary motor fixedly connected to the middle side wall of the bracket, and a driving roller shaft fitted on the output end of the auxiliary motor. The driving roller shaft is used in cooperation with the transmission roller shaft. The diameter of the driving roller shaft is larger than the diameter of the transmission roller shaft. The end of the driving roller shaft is rotatably mounted on the side wall of the bracket.

[0016] As a preferred solution of the birch veneer precise positioning and patching device of the present invention, the following applies: A limiting plate is installed on the side wall of the mounting seat. The limiting plate is arranged outside the transmission roller shaft.

[0017] An operation process of a birch veneer precise positioning and patching device includes the following steps:

[0018] Step 1. Preliminary preparation:

[0019] Equipment inspection to ensure that all components of the conveying component and the patching component can operate normally and there is no dirt or foreign matter on the surface. Parameter setting: According to the thickness of the birch veneer to be processed and the patching requirements, preset the operating parameters in the control system to determine the initial patching position, patching depth and translation range. Height and spacing adjustment to adapt to the thickness of the birch veneer so that the veneer can be evenly clamped during conveying.

[0020] Step 2. Veneer conveying and positioning:

[0021] Single - board placement: Place the birch single - board to be patched flat on the driving roller shaft, ensuring that the side of the single - board is closely attached to the limit plate so that the single - board is on the conveying center line of the device. Start the conveying, turn on the auxiliary motor, and the driving roller shaft cooperates with the driven roller shaft to stably clamp and convey the single - board. Positioning pause: When the front end of the birch single - board reaches the preset patching position sensor, the single - board stops conveying. At this time, the drill bit is directly above the defective part of the single - board (initial position).

[0022] Step 3: Precise patching operation:

[0023] Horizontal positioning: Precisely adjust the drill bit to the center of the defective position of the birch single - board to complete the horizontal positioning. Vertical feeding: Start the cylinder, push the drill bit to descend vertically, and slowly feed according to the preset depth; at the same time, turn on the driving motor to drive the drill bit to rotate at high speed and perform patching operations on the defective part of the single - board.

[0024] Step 4: Precise patching operation:

[0025] Patching completed: When the drill bit reaches the preset patching depth, the driving motor stops rotating, the cylinder contracts, driving the drill bit to rise and reset, completing one patching operation.

[0026] Step 5: Subsequent processing and recycling:

[0027] Single - board output: After patching, the auxiliary motor starts again, continues to convey the processed birch single - board forward, and sends it out from the discharge end of the device for subsequent splicing or other processing procedures.

[0028] Step 6: Subsequent processing and recycling:

[0029] Circular operation: The device automatically enters the next round of work process, receives the next birch single - board to be patched, repeats the above operation steps, and realizes continuous and efficient precise patching operations; if it is necessary to replace single - boards of different specifications, repeat the preliminary preparation steps to re - adjust the parameters and equipment status.

[0030] Advantages of the present invention: Through the precise positioning system composed of a translation motor, a translation lead screw, and a cylinder, the drill bit can be accurately moved in the X, Y, and Z directions, ensuring accurate patching of small defects on the birch veneer. The design of the lifting mechanism and the adjusting seat in the conveying assembly enables the device to adapt to birch veneers of different thicknesses, expanding the scope of application of the device. The rubber sleeve on the surface of the driving roller shaft and the setting of the auxiliary roller effectively increase the friction with the birch veneer, ensuring that the veneer does not slip or shift during transportation, and improving the stability of the patching quality. The handle design at the end of the worm enables the operator to easily adjust the height of the frame manually, with simple and convenient operation. The design of using an auxiliary motor to drive the driving roller shaft provides sufficient conveying power, ensures the conveying speed and stability of the birch veneer, and improves the patching efficiency. At the same time, the overall structure of the device is strong and durable, reducing the probability of failures and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0032] Figure 1 is the overall structural schematic diagram of the present invention.

[0033] Figure 2 is the front structural schematic diagram of the present invention.

[0034] Figure 3 is the top view structural schematic diagram of the present invention.

[0035] Figure 4 is the side view structural schematic diagram of the present invention.

[0036] Figure 5 is the structural schematic diagram of the present invention.

[0037] In the figure: 100, conveying assembly; 101, bracket; 102, frame; 103, fixing plate; 104, driving roller shaft; 105, rubber sleeve; 106, mounting seat; 107, auxiliary roller; 108, adjusting seat; 109, support rod; 110, sliding member; 111, lifting lead screw; 112, ball nut; 113, worm; 114, worm gear; 115, auxiliary motor; 116, driving roller shaft; 117, limiting plate; 200, patching assembly; 201, cross beam; 202, top plate; 203, connecting member; 204, driving motor; 205, drill bit; 206, translation motor; 207, translation lead screw; 208, cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following provides a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings of the specification.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0040] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or selectively exclusive embodiments from other embodiments.

[0041] Thirdly, the present invention is described in detail in conjunction with schematic diagrams. When detailing the embodiments of the present invention, for the sake of convenience in explanation, the cross-sectional views showing the device structure are enlarged locally not in accordance with the general ratio, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0042] Embodiment 1

[0043] Referring to Figures 1-5 , for the first embodiment of the present invention, a precise positioning and patching device for birch veneer is provided, including

[0044] A conveying assembly 100, including a bracket 101, a frame 102 inserted into the upper end of the bracket 101, a fixing plate 103 fixedly connected to the side wall of the frame 102, and a driving roller shaft 104 rotatably connected to the side wall of the fixing plate 103. The driving roller shaft 104 is installed above the bracket 101;

[0045] A patching assembly 200, including a cross beam 201 fixedly connected to the end of the fixing plate 103, a top plate 202 movably inserted into the middle of the cross beam 201, a connecting member 203 slidably clamped to the bottom side wall of the top plate 202, a driving motor 204 fixedly installed on the side wall of the connecting member 203, and a drill bit 205 adaptively installed at the output end of the driving motor 204. The end of the drill bit 205 extends above the driving roller shaft 104.

[0046] Among them, the bracket 101 is used to carry the relevant components of the patching device. The frame 102 is installed at the upper end of the bracket 101 by plugging and can be lifted along the bracket 101 to adapt to different sheet processing uses. The fixing plate 103 is fixedly connected to the side wall of the frame 102 to provide support for the driving roller shaft 104. The driving roller shaft 104 is used to convey the birch veneer, facilitating the patching operation on the birch veneer. The cross beam 201 is fixedly connected to the end of the fixing plate 103 to provide support for the entire patching assembly 200. The top plate 202 is movably plugged in the middle of the cross beam 201 and can slide along the length direction of the cross beam 201. The driving motor 204 is fixedly installed on the side wall of the connecting piece 203, and its output end is adaptively installed with a drill bit 205. The driving motor 204 provides rotational power for the drill bit 205, enabling the drill bit 205 to perform patching processing on the birch veneer.

[0047] Specifically, the patching assembly 200 further includes a translation motor 206 fixedly connected to the side wall of the top plate 202, and a translation lead screw 207 fixedly connected to the output end of the translation motor 206. The translation lead screw 207 is threadedly connected to the center of the connecting piece 203, and the end of the translation lead screw 207 is installed on the side wall of the top plate 202 through a bearing.

[0048] Among them, the translation mechanism is composed of a translation motor 206, a translation lead screw 207, and a connecting piece 203. The translation motor 206 is fixedly connected to the side wall of the top plate 202, and its output end is fixedly connected to the translation lead screw 207. The translation lead screw 207 is threadedly connected to the center of the connecting piece 203, and the end is installed on the side wall of the top plate 202 through a bearing. When the translation motor 206 works, it drives the translation lead screw 207 to rotate, so that the connecting piece 203 makes a linear motion along the translation lead screw 207, realizing the position adjustment of the drill bit 205 in the horizontal direction.

[0049] Furthermore, the patching assembly 200 further includes a cylinder 208 fixedly connected to the top of the cross beam 201, and the output end of the cylinder 208 is fixedly connected to the upper end of the top plate 202.

[0050] Among them, the cylinder 208 is fixedly connected to the top of the cross beam 201, and its output end is fixedly connected to the upper end of the top plate 202. By controlling the expansion and contraction of the cylinder 208, the top plate 202 and the drill bit 205 can be driven to make a lifting motion in the vertical direction, realizing the patching operation on the birch veneer.

[0051] Specifically, the conveying assembly 100 further includes a rubber sleeve 105 encapsulated on the side wall of the driving roller shaft 104, and the rubber sleeves 105 are evenly distributed on the side wall of the driving roller shaft 104.

[0052] Among them, the rubber sleeve 105 is made of a rubber material with a high coefficient of friction and is evenly distributed on the side wall of the driving roller shaft 104, which can effectively increase the friction with the birch veneer and prevent the veneer from slipping during transportation.

[0053] Further, the conveying assembly 100 further includes a mounting seat 106 inserted into the side wall of the frame body 102, an auxiliary roller 107 rotatably connected to the side wall of the mounting seat 106, and an adjusting seat 108 inserted into the middle side wall of the frame body 102. The auxiliary roller 107 is used in cooperation with the transmission roller shaft 104. The adjusting seat 108 and the side wall of the mounting seat 106 are provided with mating mounting grooves. The end of the auxiliary roller 107 is rotatably clamped in the middle of the mounting groove of the adjusting seat 108. A limiting plate 117 is installed on the side wall of the mounting seat 106, and the limiting plate 117 is arranged outside the transmission roller shaft 104.

[0054] Among them, the mounting seat 106 is inserted into the side wall of the frame body 102, and the auxiliary roller 107 is rotatably connected to the side wall of the mounting seat 106 and used in cooperation with the transmission roller shaft 104 to form an upper and lower clamping and conveying structure for the birch veneer. The adjusting seat 108 is inserted into the middle side wall of the frame body 102, and the side wall of the adjusting seat 108 and the mounting seat 106 are both provided with mating mounting grooves. The end of the auxiliary roller 107 is rotatably clamped in the mounting groove of the adjusting seat 108. By adjusting the position of the adjusting seat 108, the distance between the auxiliary roller 107 and the transmission roller shaft 104 can be changed, so as to adapt to birch veneers of different thicknesses.

[0055] Furthermore, the conveying assembly 100 further includes a support rod 109 fixedly connected to the side wall of the bracket 101, and a sliding member 110 slidably mounted on the side wall of the support rod 109. The side wall of the sliding member 110 is bolted to the lower side wall of the frame body 102.

[0056] Among them, the support rod 109 is fixedly connected to the side wall of the bracket 101, the sliding member 110 is slidably mounted on the side wall of the support rod 109 and connected to the lower side wall of the frame body 102 by bolts, providing guidance for the lifting of the frame body 102 and keeping the frame body 102 able to move stably on the side wall of the bracket 101.

[0057] Preferably, the conveying assembly 100 further includes a lifting screw rod 111 rotatably mounted on the side wall of the bracket 101, a ball nut 112 fitted on the side wall of the lifting screw rod 111, a worm 113 rotatably mounted on the side wall of the bracket 101, and a worm gear 114 fixedly connected to the lower end of the lifting screw rod 111. The side wall of the worm 113 meshes with the side wall of the worm gear 114. A handle is installed at the end of the worm 113, and the side wall of the ball nut 112 is fixedly connected to the side wall of the frame body 102.

[0058] Among them, the lifting mechanism is composed of a lifting lead screw 111, a ball nut 112, a worm 113, and a worm gear 114. The lifting lead screw 111 is rotatably installed on the side wall of the bracket 101, and the ball nut 112 is adaptively installed on the side wall of the lifting lead screw 111 and fixedly connected to the side wall of the frame 102. The worm gear 114 is fixedly connected to the lower end of the lifting lead screw 111 and meshes with the worm 113 rotatably installed on the side wall of the bracket 101. By turning the handle at the end of the worm 113, the worm gear 114 can be driven to rotate, and then the lifting lead screw 111 is driven to rotate, realizing the lifting adjustment of the frame 102 to adapt to the processing requirements at different heights.

[0059] Preferably, the conveying assembly 100 further includes an auxiliary motor 115 fixedly connected to the middle side wall of the bracket 101, and a driving roller shaft 116 adaptively installed at the output end of the auxiliary motor 115. The driving roller shaft 116 is used in cooperation with the driving roller shaft 104. The diameter of the driving roller shaft 116 is larger than that of the driving roller shaft 104, and the end of the driving roller shaft 116 is rotatably installed on the side wall of the bracket 101.

[0060] Among them, the auxiliary motor 115 is fixedly connected to the middle side wall of the bracket 101, and its output end is adaptively installed with the driving roller shaft 116. The driving roller shaft 116 is used in cooperation with the driving roller shaft 104, and its diameter is larger than that of the driving roller shaft 104, which can provide greater driving force to ensure that the birch veneer maintains a stable speed during the conveying process.

[0061] During use, when performing precise positioning and patching of birch veneer, first, according to the thickness of the birch veneer, by turning the handle at the end of the worm 113, the lifting lead screw 111 is driven to rotate, and the height of the frame 102 is adjusted so that the distance between the driving roller shaft 104 and the auxiliary roller 107 is adapted to the thickness of the veneer. At the same time, the position of the adjusting seat 108 is adjusted to further optimize the clamping force of the auxiliary roller 107 and the driving roller shaft 104 on the veneer. Place the birch veneer on the driving roller shaft 104, start the auxiliary motor 115, drive the driving roller shaft 116 to rotate, and under the combined action of the driving roller shaft 116 and the driving roller shaft 104, the birch veneer starts to be conveyed forward. The limiting plate 117 limits the conveying direction of the veneer to ensure that the veneer moves along the predetermined path. When the veneer is conveyed to the patching position, the conveying system pauses. At this time, according to the pre-set patching parameters, the translation motor 206 is started, driving the translation lead screw 207 to rotate, so that the connecting piece 203 moves along the translation lead screw 207, and the drill bit 205 is adjusted to the precise patching position. Then, the air cylinder 208 is started, pushing the top plate 202 and the drill bit 205 to descend, and at the same time, the driving motor 204 drives the drill bit 205 to rotate at a high speed to perform patching operations on the defective parts of the birch veneer. After the patching is completed, the air cylinder 208 contracts, driving the drill bit 205 to rise and reset. The conveying system is started again, continuing to convey the processed veneer forward, and at the same time preparing to receive the next birch veneer to be processed, and so on, cycling through the precise positioning and patching operations.

[0062] In summary, through the precise positioning system composed of the translation motor 206, the translation lead screw 207, and the cylinder 208, the drill bit 205 can be accurately moved in the X, Y, and Z directions, ensuring accurate patching of the minor defects on the birch veneer. The design of the lifting mechanism and the adjustment seat 108 in the conveying assembly 100 enables the device to adapt to birch veneers of different thicknesses, expanding the application range of the device. The rubber sleeve 105 on the surface of the drive roller shaft 104 and the auxiliary roller 107 are provided to effectively increase the friction force with the birch veneer, ensuring that the veneer does not slip or shift during transportation and improving the stability of the patching quality. The handle design at the end of the worm 113 enables the operator to easily adjust the height of the frame 102 manually, with simple and convenient operation. The design of using the auxiliary motor 115 to drive the drive roller shaft 116 provides sufficient conveying power, ensuring the conveying speed and stability of the birch veneer and improving the patching efficiency. At the same time, the overall structure of the device is strong and durable, reducing the probability of failures and extending the service life.

[0063] Embodiment 2

[0064] Refer to Figures 1-5 , which is the second embodiment of the present invention, provides an operation process of a precise positioning and patching device for birch veneer, including the following steps.

[0065] I. Preliminary preparation

[0066] Equipment inspection: Before starting the device, carefully check whether the components of the conveying assembly 100 and the patching assembly 200 are firmly connected. Confirm that there are no foreign objects on the surfaces of the drive roller shaft 104 and the auxiliary roller 107, and the rubber sleeve 105 is not damaged; check that the drill bit 205 is firmly installed without looseness or severe wear; check that the power component lines such as the cylinder 208, the translation motor 206, and the drive motor 204 are connected normally without exposure or aging.

[0067] Parameter setting: According to the thickness of the birch veneer to be processed and the patching requirements, preset the operating parameters of the translation motor 206 and the cylinder 208 in the control system, determine the initial position, patching depth, and translation range of the drill bit 205; at the same time, set the conveying speed of the auxiliary motor 115 to ensure the smooth conveyance of the veneer.

[0068] Height and spacing adjustment: By rotating the handle at the end of the worm 113, drive the lifting lead screw 111 to rotate, drive the frame 102 to rise and fall, and adjust the spacing between the drive roller shaft 104 and the auxiliary roller 107 to be suitable for the thickness of the birch veneer; then fine-tune the position of the auxiliary roller 107 through the adjustment seat 108 so that the veneer can be evenly clamped during transportation.

[0069] II. Veneer conveying and positioning

[0070] Single-board placement: Place the birch single-board to be patched smoothly on the driving roller shaft 104, ensuring that the side of the single-board is closely attached to the limit plate 117, so that the single-board is on the conveying center line of the device.

[0071] Start conveying: Turn on the auxiliary motor 115. The driving roller shaft 116 drives the driving roller shaft 104 to rotate. Under the action of the frictional force between the rubber sleeve 105 and the single-board, the birch single-board moves smoothly along the conveying direction; the auxiliary roller 107 rotates synchronously to cooperate with the driving roller shaft 104 to stably clamp and convey the single-board.

[0072] Positioning and pausing: When the front end of the birch single-board reaches the preset patching position sensor, after the conveying system receives the signal, the auxiliary motor 115 stops working, and the single-board pauses conveying. At this time, the drill bit 205 is directly above the defective part of the single-board (initial position).

[0073] III. Precise patching operation

[0074] Horizontal positioning: Start the translation motor 206, drive the translation lead screw 207 to rotate, and the connecting piece 203 moves horizontally along the lead screw to accurately adjust the drill bit 205 to the center of the defective position of the birch single-board, completing the horizontal positioning.

[0075] Vertical feeding: Start the cylinder 208, push the top plate 202 and the drill bit 205 to descend vertically, and slowly feed according to the preset depth; at the same time, turn on the drive motor 204 to drive the drill bit 205 to rotate at high speed to perform patching operations on the defective part of the single-board.

[0076] Patching completed: When the drill bit 205 reaches the preset patching depth, the drive motor 204 stops rotating, the cylinder 208 contracts, driving the drill bit 205 to rise and reset, completing one patching operation.

[0077] IV. Subsequent processing and circulation

[0078] Single-board output: After patching is completed, the auxiliary motor 115 is started again to continue conveying the processed birch single-board forward and send it out from the discharge end of the device for subsequent splicing or other processing procedures.

[0079] Circular operation: The device automatically enters the next round of work process, receives the next birch single-board to be patched, and repeats the above operation steps to achieve continuous and efficient precise patching operations; if it is necessary to replace single-boards of different specifications, repeat the preliminary preparation steps to re-adjust the parameters and equipment status.

[0080] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those skilled in the art who refer to this disclosure should easily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be altered or reordered according to alternative embodiments. In the claims, any clause of "means-plus-function" is intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0081] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present invention, or those features that are not relevant to the implementation of the present invention).

[0082] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. A precise positioning and patching device for birch veneer, characterized in that: including a conveying assembly (100), comprising a bracket (101), a frame body (102) inserted at the upper end of the bracket (101), a fixing plate (103) fixedly connected to the side wall of the frame body (102), and a driving roller shaft (104) rotatably connected to the side wall of the fixing plate (103), the driving roller shaft (104) being installed above the bracket (101); a patching assembly (200), comprising a cross beam (201) fixedly connected to the end of the fixing plate (103), a top plate (202) movably inserted in the middle of the cross beam (201), a connecting member (203) slidably clamped to the bottom side wall of the top plate (202), a driving motor (204) fixedly installed on the side wall of the connecting member (203), and a drill bit (205) adaptively installed at the output end of the driving motor (204), the end of the drill bit (205) extending above the driving roller shaft (104).

2. The birch veneer precise positioning and patching device according to claim 1, characterized in that: The patching assembly (200) further comprises a translation motor (206) fixedly connected to the side wall of the top plate (202), and a translation lead screw (207) fixedly connected to the output end of the translation motor (206), the translation lead screw (207) being threadedly connected to the center of the connecting member (203), and the end of the translation lead screw (207) being installed on the side wall of the top plate (202) through a bearing.

3. The birch veneer precise positioning and patching device according to claim 2, wherein: The patching assembly (200) further comprises a cylinder (208) fixedly connected to the top of the cross beam (201), the output end of the cylinder (208) being fixedly connected to the upper end of the top plate (202).

4. The precise positioning and patching device for birch veneer according to claim 3, characterized in that: The conveying assembly (100) further comprises a rubber sleeve (105) encapsulated on the side wall of the driving roller shaft (104), the rubber sleeves (105) being evenly distributed on the side wall of the driving roller shaft (104).

5. The birch veneer precise positioning and patching device according to claim 3, characterized in that: The conveying assembly (100) further comprises a mounting seat (106) inserted into the side wall of the frame body (102), an auxiliary roller (107) rotatably connected to the side wall of the mounting seat (106), and an adjusting seat (108) inserted into the middle side wall of the frame body (102), the auxiliary roller (107) being used in cooperation with the driving roller shaft (104), the mounting seat (106) and the adjusting seat (108) being provided with mating mounting grooves on their side walls, and the end of the auxiliary roller (107) being rotatably clamped in the middle of the mounting groove of the adjusting seat (108).

6. The birch veneer precise positioning and patching device according to claim 5, characterized in that: The conveying assembly (100) further comprises a support rod (109) fixedly connected to the side wall of the bracket (101), and a sliding member (110) slidably installed on the side wall of the support rod (109), the side wall of the sliding member (110) being bolted to the lower side wall of the frame body (102).

7. The birch veneer precise positioning and patching device according to claim 6, characterized in that: The conveying assembly (100) further includes a lifting lead screw (111) rotatably mounted on the side wall of the bracket (101), a ball nut (112) fitted on the side wall of the lifting lead screw (111), a worm (113) rotatably mounted on the side wall of the bracket (101), and a worm gear (114) fixedly connected to the lower end of the lifting lead screw (111). The side wall of the worm (113) meshes with the side wall of the worm gear (114). A handle is mounted at the end of the worm (113). The side wall of the ball nut (112) is fixedly connected to the side wall of the frame body (102).

8. The precise positioning and patching device for birch veneer according to claim 7, characterized in that: The conveying assembly (100) further includes an auxiliary motor (115) fixedly connected to the middle side wall of the bracket (101), and a driving roller shaft (116) fitted on the output end of the auxiliary motor (115). The driving roller shaft (116) is used in cooperation with the driven roller shaft (104). The diameter of the driving roller shaft (116) is larger than that of the driven roller shaft (104). The end of the driving roller shaft (116) is rotatably mounted on the side wall of the bracket (101).

9. The birch veneer precise positioning and patching device according to claim 8, wherein: A limiting plate (117) is mounted on the side wall of the mounting seat (106). The limiting plate (117) is arranged outside the driven roller shaft (104).

10. The operation process of the precise positioning and patching device for birch veneer according to claim 9, characterized in that: It includes the following steps Step 1. Preliminary preparation: Equipment inspection to ensure that all components of the conveying assembly and the patching assembly can operate normally and there are no dirt and foreign objects on the surface. Parameter setting: According to the thickness of the birch veneer to be processed and the patching requirements, preset the operating parameters in the control system to determine the initial patching position, patching depth and translation range. Height and spacing adjustment are adapted to the thickness of the birch veneer so that the veneer can be evenly clamped during conveying. Step 2. Veneer conveying and positioning: Veneer placement: Place the birch veneer to be patched flat on the driven roller shaft, ensure that the side of the veneer is closely attached to the limiting plate, and make the veneer on the conveying center line of the device. Start conveying: Turn on the auxiliary motor, and the driving roller shaft cooperates with the driven roller shaft to stably clamp and convey the veneer. Positioning pause: When the front end of the birch veneer reaches the preset patching position sensor, the veneer stops conveying. At this time, the drill bit is directly above the defective part of the veneer (initial position). Step 3. Precise patching operation: Horizontal positioning: Precisely adjust the drill bit to the center of the defective position of the birch veneer to complete the horizontal positioning. Vertical feeding: The cylinder is started to push the drill bit to descend vertically and slowly feed according to the preset depth; at the same time, the driving motor is turned on to drive the drill bit to rotate at high speed to perform patching operation on the defective part of the veneer. Step 4. Precise patching operation: Patching completed: When the drill bit reaches the preset patching depth, the driving motor stops rotating, and the cylinder contracts to drive the drill bit to rise and reset to complete one patching operation. Step 5. Subsequent processing and cycle: Veneer output: After patching is completed, the auxiliary motor is started again to continue conveying the processed birch veneer forward and send it out from the discharge end of the device for subsequent splicing or other processing procedures. Step 6. Subsequent processing and cycle: In a cyclic operation, the device automatically enters the next round of the work process, receives the next birch veneer to be patched, and repeats the above operation steps to achieve continuous, efficient, and precise patching operations. If it is necessary to replace veneers of different specifications, repeat the preliminary preparation steps to re-adjust the parameters and the equipment status.

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