A strength testing device for wooden packaging box production

Abstract

This invention belongs to the field of wooden packaging box production technology, specifically relating to a board strength testing device for wooden packaging box production. The device includes a board loading component and a strength testing component. The board loading component can drive the strip-shaped wooden boards to rotate intermittently in the circumferential direction, realizing continuous board feeding and station switching. The strength testing component is located above the testing station and includes a frame, a translation drive mechanism, an impact mechanism, a reset lifting mechanism, and an adsorption locking mechanism. The impact mechanism is equipped with a switchable hammer rod and a needle-punching part, capable of performing two strength tests on the board: impact resistance and needle-punching crack resistance. This invention, through modular structural design and automated linkage of multiple mechanisms, can simulate collision and needle-punching stress conditions during the storage and transportation of wooden boards, testing the mechanical properties of the boards. Simultaneously, it achieves continuous batch testing of boards, with high testing accuracy and high operating efficiency, effectively controlling the quality of boards used in wooden packaging box production and meeting the quality inspection needs of large-scale wooden packaging box production.

Description

Technical Field

[0001] This invention belongs to the field of wooden packaging box production technology, and specifically relates to a board strength testing device for wooden packaging box production. Background Technology

[0002] Wooden crates, with their advantages of readily available materials, stable structure, high load-bearing capacity, recyclability, and suitability for bulk cargo transportation, are widely used in the packaging and storage of goods in many industries such as machinery, chemicals, building materials, logistics, and precision instruments. They are an indispensable carrier in the industrial logistics packaging system. The overall structural strength, load-bearing capacity, and service life of wooden crates depend entirely on the mechanical properties of the wood panels used to make them. The compressive strength, bending strength, and impact strength of the wood panels directly determine the structural stability of the wooden crates during stacking and storage, long-distance transportation, and loading and unloading, and are key factors in ensuring the integrity of packaged goods. Wood is a natural anisotropic material. The mechanical properties of wood boards from different batches, tree species, and moisture contents vary greatly. If the strength of the boards does not meet the standards, it can easily lead to problems such as deformation, cracking, and collapse of the finished wooden packaging boxes. This will not only cause the packaging boxes to be scrapped and increase the production costs of enterprises, but also cause a series of problems such as cargo damage and logistics safety accidents. Therefore, conducting accurate strength testing on the boards used before the production and processing of wooden packaging boxes is a process to control product quality, avoid storage and transportation risks, and meet industry production standards.

[0003] Existing board strength testing devices for wooden packaging box production have shortcomings in use. First, they cannot simultaneously meet the requirements for testing both impact resistance and needle-punch crack resistance. In actual storage and transportation, wooden packaging boxes are subject to collisions and impacts, and are also prone to localized needle-punch cracks when loaded with sharp materials. Second, their automation level is low, and their testing efficiency is difficult to adapt to the needs of large-scale production.

[0004] Therefore, it is necessary to optimize and improve the existing strength testing equipment for wooden packaging box production. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned problems in the prior art and provide a device for testing the strength of wood panels used in the production of wooden packaging boxes.

[0006] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution: This invention provides a board strength testing device for the production of wooden packaging boxes, including a board loading component and a strength testing component; the board loading component can drive the strip of wood board to rotate intermittently in the circumferential direction and pass through the testing station in sequence, and the strength testing component is set above the testing station; The strength detection component includes a frame, a translation drive mechanism, an impact mechanism, a reset and lifting mechanism, and an adsorption and locking mechanism. The outer side of the frame is equipped with a translation drive mechanism for driving its horizontal displacement. The frame has a slidingly restricted impact mechanism that can move vertically. One side of the frame is equipped with a reset and lifting mechanism for pushing the impact mechanism upward from below. The other side of the frame is equipped with an adsorption and locking mechanism for adsorbing and locking the impact mechanism from above. The impact mechanism consists of a weight, a connecting rod, an ear seat, a switching motor, a support roller shaft, a hammer rod, and a needle-piercing part. The lower side of the weight is connected to the ear seat via the connecting rod. The ear seat movably supports the support roller shaft, which is driven to rotate by the switching motor. The hammer rod and the needle-piercing part are symmetrically installed on both sides of the support roller shaft.

[0007] Furthermore, in the aforementioned board strength testing device for wooden packaging box production, the board loading assembly includes a loading base plate, a rotary drive motor, a loading turntable, and a board conveying mechanism. The loading base plate is supported by the rotary drive motor on the loading turntable. The loading turntable has multiple slots along its circumference to facilitate the clamping of strip-shaped wooden boards. Multiple detection windows are opened on the bottom surface of the slots. The board conveying mechanism is installed on the loading turntable near the opening of the slot.

[0008] Furthermore, in the aforementioned board strength testing device for wooden packaging box production, a straightening support tube is installed on the lower side of the material-carrying turntable, and an annular straightening groove that cooperates with the straightening support tube is opened on the upper side of the material-carrying base plate.

[0009] Furthermore, in the aforementioned board strength testing device for wooden packaging box production, the board conveying mechanism includes a groove-like support, a conveying screw, a conveying screw motor, an L-shaped movable plate, a conveying drive motor, and a conveying pressure roller. The groove-like support movably supports the conveying screw that is driven to rotate by the conveying screw motor. The conveying screw has two screw segments with opposite directions of rotation. Each screw segment has an L-shaped movable plate with restricted rotation fitted on its outer side. The L-shaped movable plate is supported by the conveying drive motor and has a conveying pressure roller.

[0010] Furthermore, in the aforementioned board strength testing device for wooden packaging box production, the hammer rod is a cylindrical rod with a hemispherical bottom end, and the needle-piercing part is a square pyramid.

[0011] Furthermore, in the aforementioned board strength testing device for wooden packaging box production, the translation drive mechanism includes a lead screw support, a translation lead screw motor, a horizontal lead screw, a horizontal guide rod, and a translation movable plate. The lead screw support movably supports the horizontal lead screw that is driven to rotate by the translation lead screw motor. The lead screw support is equipped with horizontal guide rods installed side by side above and below the horizontal lead screw. The translation movable plate is sleeved on the outside of the horizontal lead screw and the horizontal guide rod, and the outer end of the translation movable plate supports a frame.

[0012] Furthermore, in the aforementioned board strength testing device for wooden packaging box production, the reset lifting mechanism includes a reset vertical screw, a reset screw motor, a first support plate, a second support plate, and a flipping motor. The reset vertical screw is driven to rotate by the reset screw motor. A first support plate with restricted rotation is sleeved on the outer side of the reset vertical screw. The first support plate is rotatably supported by a hinge structure and a second support plate that is flipped by the flipping motor. The second support plate has an avoidance recess for the ear seat of the avoidance impact mechanism.

[0013] Furthermore, in the aforementioned board strength testing device for wooden packaging box production, the adsorption locking mechanism includes an adsorption vertical screw, an adsorption screw motor, an adsorption plate, and an electric suction cup. The adsorption vertical screw is driven to rotate by the adsorption screw motor, and an adsorption plate with restricted rotation is sleeved on the outer side of the adsorption vertical screw. An electric suction cup is embedded in the adsorption plate.

[0014] Furthermore, in the aforementioned board strength testing device for wooden packaging box production, the interior of the frame is provided with a rectangular tube that matches the specifications of the weight, one side plate of the rectangular tube is provided with a first vertical groove that matches the second support plate, the bottom plate of the frame is provided with a rectangular hole that facilitates the flipping of the second support plate, and the other side plate of the rectangular tube is provided with a second vertical groove that avoids the adsorption plate.

[0015] Furthermore, the aforementioned board strength testing device for wooden packaging box production also includes a controller, which is connected to the board loading component and the strength testing component respectively.

[0016] The beneficial effects of this invention are: 1. This invention innovatively features a switchable impact mechanism. By switching the motor to drive the support roller shaft to rotate, the working states of the hammer and needle-punching parts can be quickly switched, enabling simultaneous testing of the impact strength and needle-punching crack resistance of wood panels. This effectively solves the problem of traditional testing devices having limited functionality and being unable to simulate the complex conditions that wood panels experience during actual storage and transportation, such as collisions, impacts, and sharp material compression and punctures. It provides comprehensive testing of the mechanical properties of the wood panels, predicts the structural stability of wooden packaging boxes during subsequent use, stacking, and transportation, and mitigates risks such as panel cracking, box damage, and cargo damage from the source.

[0017] 2. This invention employs a circumferential intermittent rotating board loading structure. Multiple sets of boards are simultaneously fed and repositioned via a loading turntable. Combined with an automated board conveying, positioning, detection, and resetting process, the entire operation is coordinated by a controller, eliminating the need for frequent manual loading, unloading, alignment, and resetting operations. This enables continuous, assembly-line strength testing of boards, meeting the needs of large-scale, batch production of wooden packaging boxes.

[0018] 3. The modular layout of each functional component in this invention, with the rectangular tube inside the frame providing limiting guidance for the impact mechanism, ensures precise transmission and smooth operation of each lead screw drive structure. Structural designs such as pallet flipping and vertical slot avoidance effectively prevent interference issues in the mechanism's movement. The overall equipment has a low failure rate and a long service life.

[0019] Of course, any product implementing this invention does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the sheet metal carrier assembly in this invention; Figure 3 This is a half-sectional schematic diagram of the sheet metal carrier assembly in this invention; Figure 4 This is a schematic diagram of the sheet metal conveying mechanism in this invention; Figure 5 This is a schematic diagram of the strength detection component in this invention; Figure 6 This is a schematic diagram of the carrier frame in this invention; Figure 7 This is a schematic diagram of the translation drive mechanism in this invention; Figure 8 This is a schematic diagram of the impact mechanism in this invention; Figure 9 This is a schematic diagram of the reset and lifting mechanism in this invention; Figure 10 This is a schematic diagram of the adsorption and locking mechanism in this invention; In the attached diagram, the components represented by each number are as follows: 1-Sheet material loading assembly; 11-Material loading base plate; 12-Rotary drive motor; 13-Material loading turntable; 14-Strip groove; 15-Detection window; 16-Sheet material conveying mechanism; 161-Groove-type support; 162-Conveyor screw; 163-Conveyor screw motor; 164-L-shaped movable plate; 165-Conveyor drive motor; 166-Conveyor pressure roller; 17-Straightening support tube; 2-Strength detection assembly; 21-Frame; 211-Rectangular tube; 212-First vertical groove; 213-Rectangular hole; 214-Second vertical groove; 22-Translation drive mechanism; 221-Screw support; 222-Translation screw motor 223-Horizontal lead screw, 224-Horizontal guide rod, 225-Transfer movable plate, 23-Impact mechanism, 231-Weight block, 232-Connecting rod, 233-Ear seat, 234-Switching motor, 235-Support roller shaft, 236-Hammer rod, 237-Needle punching part, 24-Reset lifting mechanism, 241-Reset vertical lead screw, 242-Reset lead screw motor, 243-First support plate, 244-Second support plate, 245-Tilting motor, 25-Adsorption locking mechanism, 251-Adsorption vertical lead screw, 252-Adsorption lead screw motor, 253-Adsorption plate, 254-Electric suction cup; 3-Strip wood board. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figures 1-2 As shown, this embodiment provides a board strength testing device for the production of wooden packaging boxes, including a board loading component 1 and a strength testing component 2; the board loading component 1 can drive the strip wooden board 3 to rotate intermittently in the circumferential direction and pass through the testing station in sequence, and the strength testing component 2 is set above the testing station.

[0024] like Figure 2 As shown, the board loading assembly 1 includes a loading base plate 11, a rotary drive motor 12, a loading turntable 13, and a board conveying mechanism 16. The loading base plate 11 is supported by the loading turntable 13 via the rotary drive motor 12. The loading turntable 13 has multiple slots 14 along its circumference to facilitate the clamping of strip-shaped wood boards. Multiple detection windows 15 are provided on the bottom surface of the slots 14. The board conveying mechanism 16 is installed on the loading turntable 13 near the opening of the slots 14.

[0025] like Figure 3As shown, a straightening support tube 17 is installed on the lower side of the material carrier turntable 13, and an annular straightening groove that cooperates with the straightening support tube 17 is opened on the upper side of the material carrier substrate 11.

[0026] The board loading assembly 1, serving as the equipment's feeding and positioning component, primarily enables automatic clamping, intermittent repositioning, and stable support of wood boards, providing a stable workstation for inspection operations. The loading base plate 11 provides fixed support for the entire assembly, while the rotary drive motor 12 provides rotational power to the loading turntable 13, enabling it to rotate intermittently at a fixed angle. This allows multiple circumferentially arranged slots 14 on the turntable to sequentially circumferentially pass through the inspection station, facilitating continuous rotational inspection of multiple boards. The slots 14 of the loading turntable 13 are used to clamp and fix strip-shaped wood boards 3, achieving rapid board positioning. The inspection window 15 at the bottom of the slot 14 allows the inspection impact force to directly act on the board inspection area, preventing the turntable structure from obstructing the inspection results. The straightening support tube 17 below the loading turntable 13 slides in conjunction with the annular straightening groove on the loading base plate 11, providing radial limit and support during turntable rotation, preventing turntable wobbling and offset, and ensuring board repositioning accuracy.

[0027] like Figure 4 As shown, the sheet material conveying mechanism 16 includes a groove-like bracket 161, a conveying screw 162, a conveying screw motor 163, an L-shaped movable plate 164, a conveying drive motor 165, and a conveying pressure roller 166. The groove-like bracket 161 movably supports the conveying screw 162, which is driven to rotate by the conveying screw motor 163. The conveying screw 162 has two screw sections with opposite directions of rotation. The outer side of each screw section is fitted with an L-shaped movable plate 164 that restricts rotation. The L-shaped movable plate 164 is supported by the conveying drive motor 165 and the conveying pressure roller 166.

[0028] The board conveying mechanism 16 is responsible for the automatic clamping and fixing of the boards. The conveying screw motor 163 drives the conveying screw 162 to rotate. Utilizing the two-section reverse-rotating thread structure of the screw, it drives two sets of L-shaped movable plates 164 to move synchronously relative to each other or in opposite directions, adapting to wood boards of different widths. The conveying drive motor 165 drives the conveying pressure roller 166 to rotate, which can press and limit the boards in the strip groove 14 to prevent board displacement during the inspection process and ensure the stability of the inspection operation.

[0029] like Figure 5As shown, the strength detection component 2 includes a frame 21, a translation drive mechanism 22, an impact mechanism 23, a reset lifting mechanism 24, and an adsorption locking mechanism 25. The translation drive mechanism 22, used to drive the horizontal displacement of the frame 21, is mounted on the outer side of the frame 21. The impact mechanism 23, capable of vertical movement, is slidably confined within the frame 21. A reset lifting mechanism 24, used to push the impact mechanism 23 upward from below, is mounted on one side of the frame 21. An adsorption locking mechanism 25, used to adsorb and lock the impact mechanism 23 from above, is mounted on the other side of the frame 21.

[0030] like Figure 8 As shown, the impact mechanism 23 consists of a weight 231, a connecting rod 232, an ear seat 233, a switching motor 234, a support roller shaft 235, a hammer rod 236, and a needle-piercing part 237. The lower side of the weight 231 is connected to the ear seat 233 via the connecting rod 232. The ear seat 233 movably supports the support roller shaft 235, which is driven to rotate by the switching motor 234. The hammer rod 236 and the needle-piercing part 237 are symmetrically installed on both sides of the support roller shaft 235. The hammer rod 236 is a cylindrical rod with a hemispherical bottom, and the needle-piercing part 237 is a square pyramid.

[0031] The impact mechanism 23 is a dual-function detection actuator. The weight 231 provides a constant impact force, and the mechanism forms an integrated transmission structure with the connecting rod 232, the lug 233, and the support roller shaft 235. The switching motor 234 can drive the support roller shaft 235 to rotate 180°, realizing the rapid switching between the hammer rod section 236 and the needle-punching section 237 on both sides. The bottom hemispherical hammer rod section 236 is used to simulate the impact conditions of logistics collision and stacking to complete the impact strength test of the plate; the four-sided pyramidal needle-punching section 237 is used to simulate the extrusion and puncture conditions of sharp materials to complete the needle-punching crack resistance test of the plate. One mechanism realizes two detection functions.

[0032] like Figure 7 As shown, the translation drive mechanism 22 includes a lead screw support 221, a translation lead screw motor 222, a horizontal lead screw 223, a horizontal guide rod 224, and a translation movable plate 225. The lead screw support 221 movably supports the horizontal lead screw 223, which is driven to rotate by the translation lead screw motor 222. The horizontal guide rod 224 is installed side by side above and below the horizontal lead screw 223 on the lead screw support 221. The translation movable plate 225 is sleeved on the outside of the horizontal lead screw 223 and the horizontal guide rod 224. The outer end of the translation movable plate 225 supports the frame 21.

[0033] The translation drive mechanism 22 uses the lead screw bracket 221 as a fixed base. The translation lead screw motor 222 drives the horizontal lead screw 223 to rotate. Under the limiting and guiding action of the upper and lower sets of horizontal guide rods 224, the translation movable plate 225 slides precisely in the horizontal direction, thereby driving the frame 21 and the overall impact mechanism 23 to move horizontally. The horizontal position of the impact test can be precisely adjusted according to the specifications of the plate and the testing requirements to realize the strength test of different positions of the plate and improve the comprehensiveness of the test.

[0034] like Figure 9 As shown, the reset lifting mechanism 24 includes a reset vertical lead screw 241, a reset lead screw motor 242, a first support plate 243, a second support plate 244, and a flipping motor 245. The reset vertical lead screw 241 is driven to rotate by the reset lead screw motor 242. The first support plate 243, which restricts rotation, is sleeved on the outside of the reset vertical lead screw 241. The first support plate 243 rotatably supports the second support plate 244, which is driven to flip by the flipping motor 245, through a hinge structure. The second support plate 244 is provided with a relief notch for the ear seat 233 of the relief impact mechanism 23.

[0035] The reset lifting mechanism 24 is used to automatically reset the impact mechanism 23 after detection. The reset screw motor 242 drives the reset vertical screw 241 to rotate, which in turn drives the first support plate 243 and the second support plate 244 to move vertically up and down. The second support plate 244 can be flipped by the flipping motor 245. It works with the rectangular hole 213 of the frame 21 to complete the avoidance and pushing operation. The avoidance notch on the support plate can avoid structural interference with the ear seat 233. The impact mechanism 23 is pushed up from the bottom to complete the reset of the impact mechanism 23 and prepare for the next detection.

[0036] like Figure 10 As shown, the adsorption locking mechanism 25 includes an adsorption vertical screw 251, an adsorption screw motor 252, an adsorption plate 253, and an electric suction cup 254. The adsorption vertical screw 251 is driven to rotate by the adsorption screw motor 252. The adsorption vertical screw 251 is fitted with an adsorption plate 253 that restricts rotation on the outside of the adsorption vertical screw 251. The electric suction cup 254 is embedded in the adsorption plate 253.

[0037] The adsorption locking mechanism 25 is used for stable locking of the impact mechanism 23 after reset and for release during testing, preventing the mechanism from shaking or shifting before testing. The adsorption screw motor 252 drives the vertical adsorption screw 251 to rotate, causing the adsorption plate 253 to move vertically, so that the embedded electric suction cup 254 adheres to the upper surface of the weight block 231 of the impact mechanism 23. The adsorption force of the electric suction cup 254 locks and fixes the impact mechanism 23, ensuring the stability of the impact mechanism 23 before testing and eliminating testing errors caused by mechanical clearance.

[0038] like Figure 6As shown, the interior of the frame 21 is provided with a rectangular tube 211 that matches the specifications of the weight 231. One side plate of the rectangular tube 211 has a first vertical groove 212 that matches the second support plate 244. The bottom plate of the frame 21 has a rectangular hole 213 that facilitates the flipping of the second support plate 244. The size of the rectangular hole 213 is smaller than the inner cavity size of the rectangular tube 211. The other side plate of the rectangular tube 211 has a second vertical groove 214 that avoids the adsorption plate 253.

[0039] The frame 21 serves as the mounting base for each testing mechanism. The internal rectangular tube 211 provides vertical sliding limit guidance for the impact mechanism 23, ensuring that the impact mechanism 23 falls vertically and prevents deviation or tilting. The structural design of the first vertical groove 212, the second vertical groove 214, and the rectangular hole 213 provides clearance space for the movement of the reset lifting mechanism 24 and the adsorption locking mechanism 25, respectively, avoiding structural interference during the movement of each mechanism and ensuring smooth operation of the equipment.

[0040] The device also includes a controller, which is connected to the sheet material loading assembly 1 and the strength testing assembly 2 respectively.

[0041] The working principle of this device is as follows: When this device is in operation, the operator first places the strip-shaped wood panels 3 to be tested into the strip grooves 14 of the material-carrying turntable 13. After the equipment is started, the controller controls the panel conveying mechanism 16 to run. The conveying screw 162 drives two sets of L-shaped movable plates 164 to align the panels, and the conveying pressure rollers 166 press the panels, completing the automatic clamping and fixing of the panels. Subsequently, the rotary drive motor 12 starts, driving the material-carrying turntable 13 to rotate intermittently, accurately conveying the panels to be tested to the testing station.

[0042] After the board material is in place, the translation drive mechanism 22 drives the carrier frame 21 to move horizontally according to preset parameters, adjusting the impact mechanism 23 to the preset detection point of the board material. Subsequently, the adsorption locking mechanism 25 releases the adsorption locking state, the electric suction cup 254 releases the impact mechanism 23, and the impact mechanism 23 falls vertically along the rectangular tube 211 under its own gravity, impacting the surface of the board material through the corresponding hammer rod part 236 or needle part 237 at the bottom, respectively completing the detection of the board material's impact resistance and needle puncture crack resistance.

[0043] After a single test is completed, the reset lifting mechanism 24 is activated, and the reset vertical screw 241 drives the second support plate 244 to move upward, pushing the impact mechanism 23 to reset as a whole. At the same time, the flipping motor 245 drives the second support plate 244 to flip and avoid the impact mechanism 23, ensuring that the impact mechanism 23 is completely reset. After the reset is completed, the adsorption locking mechanism 25 descends again to adsorb and lock the impact mechanism 23, waiting for the next test command.

[0044] After a single board is inspected, the material turntable 13 rotates intermittently again, transporting the next board to be inspected to the inspection station, thus completing the continuous inspection operation in a cycle. Workers can determine whether the board's strength meets the standards based on the deformation and cracking after impact, combined with the inspection conditions. The entire process is automated and streamlined, efficiently completing batch strength testing of wooden packaging box boards.

[0045] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for testing the strength of wood-based panels used in the production of wooden packaging boxes, characterized in that, It includes a board loading assembly and a strength testing assembly; the board loading assembly can drive the strip wood board to rotate intermittently in the circumferential direction and pass through the testing station in sequence, and the strength testing assembly is set above the testing station; The strength detection component includes a frame, a translation drive mechanism, an impact mechanism, a reset and lifting mechanism, and an adsorption and locking mechanism. The outer side of the frame is equipped with a translation drive mechanism for driving its horizontal displacement. The frame has a slidingly restricted impact mechanism that can move vertically. One side of the frame is equipped with a reset and lifting mechanism for pushing the impact mechanism upward from below. The other side of the frame is equipped with an adsorption and locking mechanism for adsorbing and locking the impact mechanism from above. The impact mechanism consists of a weight, a connecting rod, an ear seat, a switching motor, a support roller shaft, a hammer rod, and a needle-piercing part. The lower side of the weight is connected to the ear seat via the connecting rod. The ear seat movably supports the support roller shaft, which is driven to rotate by the switching motor. The hammer rod and the needle-piercing part are symmetrically installed on both sides of the support roller shaft.

2. The board strength testing device for wooden packaging box production according to claim 1, characterized in that, The board material loading assembly includes a loading base plate, a rotary drive motor, a loading turntable, and a board conveying mechanism. The loading base plate is supported by the rotary drive motor and the loading turntable is provided with multiple slots along the circumference to facilitate the clamping of strip wood boards. Multiple detection windows are provided on the bottom surface of the slots. The board conveying mechanism is installed on the loading turntable near the opening of the slot.

3. The board strength testing device for wooden packaging box production according to claim 2, characterized in that, A straightening support tube is installed on the lower side of the material carrier turntable, and an annular straightening groove that cooperates with the straightening support tube is opened on the upper side of the material carrier substrate.

4. The board strength testing device for wooden packaging box production according to claim 3, characterized in that, The plate conveying mechanism includes a groove-like support, a conveying screw, a conveying screw motor, an L-shaped movable plate, a conveying drive motor, and a conveying pressure roller. The groove-like support movably supports the conveying screw that is driven to rotate by the conveying screw motor. The conveying screw has two screw segments with opposite directions of rotation. Each screw segment is fitted with an L-shaped movable plate that restricts rotation. The L-shaped movable plate is supported by the conveying drive motor and a conveying pressure roller.

5. The board strength testing device for wooden packaging box production according to claim 4, characterized in that, The hammer rod is a cylindrical rod with a hemispherical bottom, and the needle-piercing part is a square pyramid.

6. The board strength testing device for wooden packaging box production according to claim 5, characterized in that, The translation drive mechanism includes a lead screw support, a translation lead screw motor, a horizontal lead screw, a horizontal guide rod, and a translation movable plate. The lead screw support movably supports the horizontal lead screw that is driven to rotate by the translation lead screw motor. The lead screw support is equipped with horizontal guide rods installed side by side above and below the horizontal lead screw. The translation movable plate is sleeved on the outside of the horizontal lead screw and the horizontal guide rod. The outer end of the translation movable plate is supported by a frame.

7. The board strength testing device for wooden packaging box production according to claim 6, characterized in that, The reset lifting mechanism includes a reset vertical lead screw, a reset lead screw motor, a first support plate, a second support plate, and a flipping motor. The reset vertical lead screw is driven to rotate by the reset lead screw motor. A first support plate with restricted rotation is sleeved on the outer side of the reset vertical lead screw. The first support plate is rotatably supported by a hinge structure and a second support plate that is flipped by the flipping motor. The second support plate has a relief notch for the ear seat of the impact avoidance mechanism.

8. The board strength testing device for wooden packaging box production according to claim 7, characterized in that, The adsorption locking mechanism includes an adsorption vertical screw, an adsorption screw motor, an adsorption plate, and an electric suction cup. The adsorption vertical screw is driven to rotate by the adsorption screw motor. An adsorption plate with restricted rotation is sleeved on the outside of the adsorption vertical screw, and an electric suction cup is embedded in the adsorption plate.

9. The board strength testing device for wooden packaging box production according to claim 8, characterized in that, The frame has a rectangular tube inside that matches the specifications of the weight. One side plate of the rectangular tube has a first vertical groove that matches the second support plate. The bottom plate of the frame has a rectangular hole that facilitates the flipping of the second support plate. The other side plate of the rectangular tube has a second vertical groove that avoids the adsorption plate.

10. The board strength testing device for wooden packaging box production according to claim 9, characterized in that, It also includes a controller, which is connected to the sheet material loading assembly and the strength testing assembly, respectively.

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