Sample preparation machine for detecting diseases and pests in solid wood

Abstract

The utility model discloses a sample preparation machine for detecting diseases and pests in solid wood. The sample preparation machine comprises a mounting seat, and a driving motor, a transmission mechanism, a wood sample preparation mechanism and a wood board feeding mechanism which are mounted above the mounting seat, the driving motor provides power for the wood sample preparation mechanism through the transmission mechanism; the wood board feeding mechanism is mounted in front of the wood sample preparation mechanism and is used for conveying wood to be cut to the wood sample preparation mechanism; the wood sample preparation mechanism comprises a box body and a crank connecting rod mechanism mounted in the box body; the crank connecting rod mechanism comprises a crankshaft assembly, a connecting rod assembly and a cutter assembly. The device is used for preparing imported and exported wood products into wood chips with the thickness meeting the requirement of disease and pest detection.

Description

Technical Field

[0001] The utility model relates to wood pest detection equipment, in particular to a sample preparation machine used for detecting pests and diseases in solid wood. Background Art

[0002] The import of wood increases the chance of forest pests and diseases being introduced into my country from abroad. Once quarantine pests and diseases occur, they will cause significant damage to my country's forestry production. Therefore, the quarantine of wood has always attracted much attention. Effective pest and disease inspection and quarantine technology can reduce the threats and risks caused by foreign harmful organisms. One of the steps in wood quarantine is to cut the imported wood packaging boxes into thin slices for pest and disease detection. Utility Model Content

[0003] The utility model aims to provide a sample preparation machine for detecting pests and diseases in solid wood, which is used for preparing inlet and outlet wood into wood chips with different thicknesses.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A sample preparation machine for detecting pests and diseases in solid wood, the sample preparation machine comprising: a mounting seat, a driving motor installed above the mounting seat, a transmission mechanism, a wood sample preparation mechanism, and a wood board feeding mechanism; the driving motor provides power to the wood sample preparation mechanism through the transmission mechanism;

[0006] The wood board feeding mechanism is installed in front of the wood sample preparation mechanism to transport the wood to be cut to the wood sample preparation mechanism;

[0007] The wood sample preparation mechanism comprises a box body and a crank connecting rod mechanism installed in the box body;

[0008] The crank-connecting rod mechanism comprises a crankshaft assembly, a connecting rod assembly and a cutter assembly;

[0009] The crankshaft assembly comprises a crankshaft, and a crankshaft is installed at both ends of the crankshaft, one of the crankshafts is a power shaft, and the other is a support shaft, and the crankshaft comprises a crank and a half shaft;

[0010] The connecting rod assembly comprises a connecting rod body, wherein the upper and lower ends of the connecting rod body are provided with circular holes, a first bearing is installed in each circular hole, the first bearing at the upper end is connected to the crankshaft, and the first bearing at the lower end is connected to a pin shaft;

[0011] The cutter assembly comprises a cutter seat and a cutter, the cutter seat is connected to the pin shaft, and the left and right ends of the cutter seat are convex V-shaped; an inclined groove is provided below the cutter seat, and the cutter is installed in the inclined groove, and the cutter is parallelogram-shaped, the upper bevel of the cutter contacts the plane of the bevel groove, and the lower bevel of the cutter forms a blade, and the blade forms an angle of 5 degrees with the horizontal;

[0012] The box body comprises a front box plate, a rear box plate, a left side plate and a right side plate; a second bearing is respectively installed on the upper part of the front box plate and the rear box plate, and the two half shafts of the crankshaft assembly are respectively connected to the corresponding second bearings; a rectangular feeding port is provided at the lower part of the front box plate, a bottom knife support frame is installed at the lower part of the feeding port, a bottom knife is installed on the bottom knife support frame, and the upper edge of the bottom knife is flush with the bottom edge of the feeding port;

[0013] The left side plate and the right side plate are respectively installed with a slideway, and the opposite surfaces of the two slideways are provided with a V-shaped groove extending in the up-down direction, and the left and right ends of the knife seat are respectively slidably arranged in the corresponding V-shaped groove.

[0014] Preferably, the wooden board feeding mechanism is installed at the feeding port of the wood sample preparation mechanism, and the wooden board feeding mechanism includes a feeding platform and a pushing assembly;

[0015] The feeding platform has a U-shaped cross section, one end of which is connected to the front box plate of the wood sample preparation mechanism, and the bottom is flush with the lower edge of the feeding port; a long groove is provided in the middle of the feeding platform;

[0016] The pushing assembly is installed under the feeding platform, and the pushing assembly includes a pushing plate, a pushing motor, a connecting sleeve, a screw, and a screw nut; the pushing motor is connected to the screw via the connecting sleeve, the screw nut is connected to the screw, and the screw nut is connected to a connecting rod, the connecting rod passes through the long slot of the feeding platform, and the end of the connecting rod is connected to the pushing plate.

[0017] Preferably, the wooden board feeding mechanism further comprises a mounting frame,

[0018] The mounting frame includes a front frame, a rear frame and a middle frame, the pusher motor is mounted on the front frame, the rear frame and the middle frame are respectively mounted with bearing seats, and both ends of the lead screw are respectively mounted on the corresponding bearing seats through a third bearing;

[0019] A travel switch is installed at the bottom of the rear frame and the middle frame, and when the travel switch is triggered, the power supply to the pusher motor is stopped;

[0020] The push motor is a reduction motor or a servo motor;

[0021] The connecting rod is welded to the lead screw nut.

[0022] Preferably, the wood board feeding mechanism further comprises an upper pressing plate assembly, which is installed above the rear end of the feeding platform and is used to press the cut wood board;

[0023] The upper pressing plate assembly includes a pressing frame and a pressing plate, two guide rods are connected above the pressing plate, the pressing frame is fixed above the feeding platform, two guide holes are provided on the pressing frame, the guide rods pass through the corresponding guide holes, and a handle is connected to the top of the two guide rods.

[0024] Preferably, a locking assembly is also installed on the pressing frame to lock the position of the guide rod;

[0025] The locking assembly includes a locking plate, a circular hole in the middle of which is larger than the diameter of the guide rod, so that the locking plate is inserted into the guide rod, one end of the locking plate is provided with an open long slot, which is inserted into the screw rod of a screw, and the screw is installed on the clamping frame and locked by a nut. A spring is sleeved on the guide rod, one end of the spring rebounds against the locking plate, and the other end rebounds against the clamping frame.

[0026] Preferably, the transmission mechanism includes a chain and two sprockets, one of the sprockets is mounted on the power output shaft of the drive motor, and the other sprocket is mounted on the half-shaft of the crankshaft serving as the power shaft, and the two sprockets are connected by the chain.

[0027] Preferably, the sample preparation machine also includes an electrical control cabinet.

[0028] The advantages of the utility model are:

[0029] The utility model provides a sample preparation machine for detecting pests in solid wood, which is used for detecting pests in imported and exported wooden products and can cut wooden boards into wood chips with a thickness of 0.5 to 3 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the general assembly structure of a sample preparation machine for detecting pests and diseases in solid wood in an embodiment of the utility model;

[0031] Figure 2 It is a cross-sectional structural schematic diagram of a wood sample preparation mechanism in an embodiment of the utility model;

[0032] Figure 3 It is a structural schematic diagram of a crank-connecting rod mechanism in an embodiment of the utility model;

[0033] Figure 4 This is a schematic diagram of a vertical cross-section structure of a box body in an embodiment of the utility model;

[0034] Figure 5 This is a schematic cross-sectional structure diagram of a box body in an embodiment of the utility model;

[0035] Figure 6 This is a schematic diagram of the structure of a front box plate in an embodiment of the utility model;

[0036] Figure 7 This is a structural schematic diagram of a wooden board feeding mechanism in an embodiment of the utility model;

[0037] Figure 8 It is a structural schematic diagram of an upper pressing plate assembly in an embodiment of the utility model. DETAILED DESCRIPTION

[0038] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0039] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "back" and other terms indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0040] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0041] See attached Figure 1 , Figure 1The schematic diagram of the general assembly structure of a sample preparation machine for detecting pests and diseases in solid wood of the utility model. In this embodiment, the sample preparation machine for detecting pests and diseases in solid wood includes: a mounting seat 10 and a driving motor 20, a transmission mechanism 30, a wood sample preparation mechanism 40, a wood board feeding mechanism 50, and an electrical control cabinet 60 installed above the mounting seat 10. The mounting seat 10 is a square tube welded part, which is used to install the functional components that constitute the whole machine.

[0042] The driving motor 20 is the power of the machine. The driving motor 20 is installed on the mounting seat 10 in parallel with the wood specimen preparation mechanism 40, and the power is transmitted to the wood specimen preparation mechanism 40 through the transmission mechanism 30. The transmission mechanism 30 includes a chain and two sprockets, one sprocket is installed on the power output shaft of the driving motor 20, and the other sprocket is installed on the power input shaft of the wood specimen preparation mechanism 40, and the two sprockets are connected by a chain (bushing roller chain). In this way, the rotation and torque of the output shaft of the driving motor 20 are transmitted to the power input shaft of the wood specimen preparation mechanism 40.

[0043] See attached Figure 2 and Figure 3 , Figure 2 It is a schematic diagram of the cross-sectional structure of the wood specimen preparation mechanism. Figure 3 Schematic diagram of the structure of the crank-connecting rod mechanism. The wood specimen preparation mechanism 40 includes a housing and a crank-connecting rod mechanism installed in the housing. The crank-connecting rod mechanism includes a crankshaft assembly, a connecting rod assembly and a cutter assembly. The crankshaft assembly includes a crankshaft 41, and a crankshaft is installed at each end of the crankshaft 41. One crankshaft is a power shaft, that is, the power input shaft of the wood specimen preparation mechanism 40. The other is a support shaft, and the crankshaft includes a crank 42 and a half shaft 43. The half shaft 43 is welded to the crank 42 to form a crankshaft, wherein one crankshaft is a support shaft and the other is a power input shaft. The entire crank-connecting rod mechanism is installed on the housing through a second bearing 44.

[0044] The connecting rod assembly includes a connecting rod body 45, which has circular holes at the upper and lower ends to form a bearing seat for installing a first bearing 46. A first bearing 46 is installed in each circular hole. The first bearing 46 at the upper end is connected to the crankshaft 41, and the first bearing 46 at the lower end is connected to a pin shaft 47.

[0045] The cutter assembly includes a cutter seat 48 and a cutter 49. The cutter seat 48 is connected to the pin 47. The left and right ends of the cutter seat 48 are convex V-shaped. After assembly, it is embedded in the V-shaped groove of the slideway 78 on the box body and can slide up and down along the V-shaped groove. An inclined groove is provided below the cutter seat 48, and a round hole for installing the cutter 49 is opened on the inclined groove. The cutter 49 is installed in the inclined groove. The cutter 49 is a parallelogram. The circular hole corresponding to the cutter seat 48 along the long strip direction with the width as the center line is opened with several threaded holes. The upper bevel of the cutter 49 contacts the plane of the bevel groove, which plays a role in supporting the cutter 49 when cutting wood chips. The lower bevel of the cutter 49 is formed with a blade, and the blade is at an angle of 5 degrees with the horizontal, which can be slid when cutting wood chips to reduce cutting resistance.

[0046] See attached Figures 4 to 6 The box body is the supporting body of the wood specimen preparation mechanism 40, and the box body includes a front box plate 71, a rear box plate 72, a left side plate 73 and a right side plate 74. The four box plates are connected by bolts to form a rectangular box body, and are installed on the mounting seat 10 by bolts. The upper parts of the front box plate 71 and the rear box plate 72 are respectively installed with the second bearing 44, and the two half shafts 43 of the crankshaft assembly are respectively connected with the corresponding second bearing 44. That is, the upper part of the body of the front box plate 71 is provided with a circular hole and threaded holes around the circular hole, which are used to install the bearing seat of the second bearing 44. Correspondingly, the upper part of the body of the rear box plate 72 is provided with a circular hole for installing the bearing seat and threaded holes around the circular hole at the same position as the front box plate 71. The position of the circular hole corresponds to the position of the upper circular hole of the front box plate 71, and the axis of the two circular holes is the same axis line.

[0047] A rectangular opening is provided at the bottom of the front box plate 71 as a feeding port 75 for the cut wood. There are four threaded holes below the opening for mounting the wood board feeding mechanism 50. A bottom knife support frame 76 is welded to the bottom of the feeding port 75, and a bottom knife 77 is mounted on the bottom knife support frame 76, and the upper edge of the bottom knife 77 is flush with the bottom edge of the feeding port 75.

[0048] The left side plate 73 and the right side plate 74 are respectively installed with a long strip of slideway 78. The opposite surfaces of the two slideways 78 are provided with V-shaped grooves extending in the up-down direction. The left and right ends of the knife holder 48 are respectively slidably arranged in the corresponding V-shaped grooves. There are 6 threaded holes at the top, middle and bottom (or left, middle and right) of the edge of the V-shaped groove. The two slideways 78 are installed on the corresponding two side plates by a set of different screws to form a sliding pair with the knife holder 48 on the crank connecting rod mechanism. The distance between the two slideways 78 can be locked by the installed screws to ensure that the sliding pair can have the best sliding clearance. According to the position of the slideway 78 and the bottom knife 77, the two side box plates are provided with grooves for installing or removing the bottom knife 77, as well as threaded holes for installing the slideway 78.

[0049] See attached Figure 7, which is a structural diagram of the wood board feeding mechanism. The wood board feeding mechanism 50 is installed in front of the wood sample preparation mechanism 40 to transport the wood to be cut for the wood sample preparation mechanism 40. Specifically, the wood board feeding mechanism 50 is installed at the feeding port 75 of the wood sample preparation mechanism 40, and the wood board feeding mechanism 50 includes a feeding platform 51 and a pushing assembly.

[0050] The feeding platform 51 has a U-shaped cross section, one end of which is connected to the front box plate 71 of the wood sample preparation mechanism 40 , and the bottom is flush with the lower edge of the feeding port 75 ; a long groove is provided in the middle of the feeding platform 51 .

[0051] The push assembly is installed below the feeding platform 51, and includes a push plate 52, a push motor 53, a connecting sleeve 54, a lead screw 55, and a lead screw nut 56. The push motor 53 is connected to the lead screw 55 through the connecting sleeve 54, and the lead screw nut 56 is connected to the lead screw 55. The lead screw nut 56 is connected to a connecting rod 57, which is welded to the lead screw nut 56. The connecting rod 57 passes through the long slot of the feeding platform 51, and the end of the connecting rod 57 is connected to the push plate 52. When the push motor 53 drives the lead screw 55 to rotate, the lead screw nut 56 pushes the push plate 52 to slide along the long slot of the feeding platform 51 to achieve feeding and return.

[0052] The wood board feeding mechanism 50 also includes a mounting frame, which includes a front frame, a rear frame and a middle frame. The pusher motor 53 is mounted on the front frame, and the rear frame and the middle frame are respectively mounted with bearing seats 58. The two ends of the lead screw 55 are respectively mounted on the corresponding bearing seats 58 through a third bearing 59. The bottom of the rear frame and the middle frame are both installed with a travel switch 70, and the lead screw nut 56 can touch the travel switch 70. The travel switch 70 is triggered to cut off the power of the pusher motor 53, so that the pusher motor 53 stops. The pusher motor 53 is a reduction motor or a servo motor. When the pusher motor 53 is an ordinary reducer, the feeding amount is controlled by adjusting the moving speed of the pusher plate 52. When the pusher motor 53 is a servo motor, it can be controlled by PLC to accurately control the thickness of the specimen slice.

[0053] The wood board feeding mechanism 50 also includes an upper pressing plate assembly, see the attached Figure 8 , is a schematic diagram of the structure of the upper pressing plate assembly. The upper pressing plate assembly is installed above the rear end of the feeding platform 51, near the feeding port 75, and is used to press the cut wood board.

[0054] The upper pressure plate assembly includes a clamping frame 80 and a pressure plate 81. The pressure plate 81 is a rectangular plate with a certain thickness and rigidity, and threaded holes are processed on it. Two guide rods 82 are connected above the pressure plate 81. The lower ends of the guide rods 82 are processed with external threads that are the same as the threaded holes of the pressure plate. After being installed on the pressure plate 81, the nuts are locked. The clamping frame 80 is fixed above the feeding platform 51. Two guide holes are provided on the clamping frame 80. The guide rods 82 pass through the corresponding guide holes. The tops of the two guide rods 82 are processed with internal threads. The handles 83 are installed on the guide rods 82 by screws. A locking assembly is also installed on the clamping frame 80 to lock the position of the guide rods. Specifically, the locking assembly includes a locking plate 84, which is a rectangular thin plate. The middle of the locking plate 84 has a circular hole larger than the diameter of the guide rod, so that the locking plate is inserted into the guide rod 82. The other end of the locking plate 84 is an open long slot, which is inserted into the screw 85. The screw 85 is locked and fixed to the pressing frame 80 with a nut. A spring 86 is sleeved on the guide rod 82, and one end of the spring 86 rebounds against the locking plate 84, and the other end rebounds against the pressing frame 80. Under the action of the spring 86, the locking plate 84 will clamp the guide rod 82 to prevent it from sliding upward, thereby limiting the upward jumping of the compressed wooden board during operation. When the pressing plate 81 needs to be raised, the other end of the locking plate 84 is pressed down so that the circular hole of the locking plate 84 no longer clamps the guide rod 82, and the pressing plate 81 can be lifted.

[0055] The sample preparation machine for detecting pests and diseases in solid wood also includes an electrical control cabinet 60. The electrical control cabinet 60 has two types: an ordinary electrical box and a PLC-controlled electrical box. The ordinary electrical box is used to control the start and stop of the drive motor 20 and the feeding amount of the feeding device motor, all of which need to be adjusted manually. The panel of the PLC-controlled electrical box has a human-machine interactive screen that can accurately set the thickness of the sample slice. During operation, driven by the drive motor 20, the cutter 49 continuously moves up and down to separate the wood board raw materials continuously fed by the feeding mechanism into thin slices required by the sample.

[0056] The above are the preferred embodiments of the utility model and the technical principles used therein. For those skilled in the art, without departing from the spirit and scope of the utility model, any obvious changes such as equivalent transformation, simple replacement, etc. based on the technical solution of the utility model shall fall within the protection scope of the utility model.

Claims

1. A sample preparation machine for detecting pests and diseases in solid wood, characterized in that: The sample preparation machine comprises: a mounting seat and a driving motor installed above the mounting seat, a transmission mechanism, a wood sample preparation mechanism, and a wood board feeding mechanism; the driving motor provides power to the wood sample preparation mechanism through the transmission mechanism; The wood board feeding mechanism is installed in front of the wood sample preparation mechanism to transport the wood to be cut to the wood sample preparation mechanism; The wood sample preparation mechanism comprises a box body and a crank connecting rod mechanism installed in the box body; The crank-connecting rod mechanism comprises a crankshaft assembly, a connecting rod assembly and a cutter assembly; The crankshaft assembly comprises a crankshaft, and a crankshaft is installed at both ends of the crankshaft, one of the crankshafts is a power shaft, and the other is a support shaft, and the crankshaft comprises a crank and a half shaft; The connecting rod assembly comprises a connecting rod body, wherein the upper and lower ends of the connecting rod body are provided with circular holes, a first bearing is installed in each circular hole, the first bearing at the upper end is connected to the crankshaft, and the first bearing at the lower end is connected to a pin shaft; The cutter assembly comprises a cutter seat and a cutter, the cutter seat is connected to the pin shaft, and the left and right ends of the cutter seat are convex V-shaped; an inclined groove is provided below the cutter seat, and the cutter is installed in the inclined groove, and the cutter is parallelogram-shaped, the upper bevel of the cutter contacts the plane of the bevel groove, and the lower bevel of the cutter forms a blade, and the blade forms an angle of 5 degrees with the horizontal; The box body comprises a front box plate, a rear box plate, a left side plate and a right side plate; a second bearing is respectively installed on the upper part of the front box plate and the rear box plate, and the two half shafts of the crankshaft assembly are respectively connected to the corresponding second bearings; a rectangular feeding port is provided at the lower part of the front box plate, a bottom knife support frame is installed at the lower part of the feeding port, a bottom knife is installed on the bottom knife support frame, and the upper edge of the bottom knife is flush with the bottom edge of the feeding port; The left side plate and the right side plate are respectively installed with a slideway, and the opposite surfaces of the two slideways are provided with a V-shaped groove extending in the up-down direction, and the left and right ends of the knife seat are respectively slidably arranged in the corresponding V-shaped groove.

2. The sample preparation machine for detecting pests and diseases in solid wood according to claim 1, characterized in that: The wooden board feeding mechanism is installed at the feeding port of the wood sample preparation mechanism, and the wooden board feeding mechanism includes a feeding platform and a pushing assembly; The feeding platform has a U-shaped cross section, one end of which is connected to the front box plate of the wood sample preparation mechanism, and the bottom is flush with the lower edge of the feeding port; a long groove is provided in the middle of the feeding platform; The pushing assembly is installed under the feeding platform, and the pushing assembly includes a pushing plate, a pushing motor, a connecting sleeve, a screw, and a screw nut; the pushing motor is connected to the screw via the connecting sleeve, the screw nut is connected to the screw, and the screw nut is connected to a connecting rod, the connecting rod passes through the long slot of the feeding platform, and the end of the connecting rod is connected to the pushing plate.

3. The sample preparation machine for detecting pests and diseases in solid wood according to claim 2, characterized in that: The wooden board feeding mechanism also includes a mounting frame, The mounting frame includes a front frame, a rear frame and a middle frame, the pusher motor is mounted on the front frame, the rear frame and the middle frame are respectively mounted with bearing seats, and both ends of the lead screw are respectively mounted on the corresponding bearing seats through a third bearing; A travel switch is installed at the bottom of the rear frame and the middle frame, and when the travel switch is triggered, the power supply to the pusher motor is stopped; The push motor is a reduction motor or a servo motor; The connecting rod is welded to the lead screw nut.

4. The sample preparation machine for detecting pests and diseases in solid wood according to claim 2, characterized in that: The wood board feeding mechanism also includes an upper pressing plate assembly, which is installed above the rear end of the feeding platform and is used to press the cut wood boards; The upper pressing plate assembly includes a pressing frame and a pressing plate, two guide rods are connected above the pressing plate, the pressing frame is fixed above the feeding platform, two guide holes are provided on the pressing frame, the guide rods pass through the corresponding guide holes, and a handle is connected to the top of the two guide rods.

5. The sample preparation machine for detecting pests and diseases in solid wood according to claim 4, characterized in that: A locking assembly is also installed on the pressing frame to lock the position of the guide rod; The locking assembly includes a locking plate, a circular hole in the middle of which is larger than the diameter of the guide rod, so that the locking plate is inserted into the guide rod, one end of the locking plate is provided with an open long slot, which is inserted into the screw rod of a screw, and the screw is installed on the clamping frame and locked by a nut. A spring is sleeved on the guide rod, one end of the spring rebounds against the locking plate, and the other end rebounds against the clamping frame.

6. The sample preparation machine for detecting pests and diseases in solid wood according to claim 1, characterized in that: The transmission mechanism includes a chain and two sprockets, one of the sprockets is installed on the power output shaft of the driving motor, and the other sprocket is installed on the half shaft of the crank shaft serving as the power shaft, and the two sprockets are connected by the chain.

7. The sample preparation machine for detecting pests and diseases in solid wood according to claim 1, characterized in that: The sample preparation machine also includes an electrical control cabinet.

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