Variable diameter log automatic cutting device

Abstract

The application discloses a variable-diameter log automatic cutting device, which comprises a table top, two clamping mechanisms, a cutting mechanism and a discharging mechanism. The two clamping mechanisms are clamping mechanism A and clamping mechanism B. The clamping mechanism A is fixedly arranged at one end of the table top. The clamping mechanism B can move horizontally on the table top and approach or move away from the clamping mechanism A. The cutting mechanism is arranged on one side of the table top and close to the clamping mechanism A. The discharging mechanism is arranged on the same side of the table top as the cutting mechanism and is used for discharging processed logs according to diameters. The variable-diameter log automatic cutting device moves back and forth on a straight line, is good in adaptability to logs with different diameters, automatically discharges logs according to diameters, improves processing efficiency and stability, and can automatically feed and automatically reset, and is low in technical requirement and high in safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wood processing machinery equipment, in particular to a variable-diameter log automatic cutting equipment. BACKGROUND

[0002] In the technical field of wood processing machinery equipment, log cutting equipment is one of the indispensable key equipment. With the rapid development of China's economy, the demand for wood is increasing year by year, and higher requirements are put forward for the performance and efficiency of log cutting equipment. In actual processing, the diameters of logs are often different, which increases the processing difficulty and processing time. Therefore, an equipment capable of clamping and processing logs of different diameters and automatically feeding and resetting during processing is needed to effectively improve the processing efficiency, safety and stability of the equipment SUMMARY

[0003] In order to solve the problems in the background art, the present application provides a variable-diameter log automatic cutting equipment capable of clamping logs of different diameters and automatically feeding and resetting during processing, and automatically sorting logs according to their diameters after processing. The variable-diameter log automatic cutting equipment moves back and forth on a straight line, has good adaptability to logs of different diameters, automatically sorts logs according to their diameters, improves the processing efficiency and stability, and can automatically feed and reset, with low technical requirements and high safety.

[0004] The technical scheme adopted by the present application is as follows:

[0005] A variable-diameter log automatic cutting equipment, comprising a table, two clamping mechanisms are provided on the table, including clamping mechanism A and clamping mechanism B, the clamping mechanism A is fixedly arranged at one end of the table, and the clamping mechanism B can move horizontally on the table, close to or away from the clamping mechanism A; a cutting mechanism is arranged on one side of the table, and the cutting mechanism is arranged close to the clamping mechanism A; and a discharging mechanism is further arranged on the same side of the table as the cutting mechanism, which sorts the processed logs according to their diameters.

[0006] Further, the clamping mechanism B is arranged on a moving support table, the moving support table and the table are connected through a sliding assembly, and a bidirectional moving mechanism is arranged below the moving support table.

[0007] Further, the bidirectional moving mechanism comprises a motor II, a gear and rack transmission mechanism A, a ratchet and pawl transmission mechanism A, a gear and rack transmission mechanism B, and a ratchet and pawl transmission mechanism B; the motor II is in common transmission connection with the ratchet and pawl transmission mechanism A and the ratchet and pawl transmission mechanism B, the gear and rack transmission mechanism A is in transmission connection with the ratchet and pawl transmission mechanism A, and the gear and rack transmission mechanism B is in transmission connection with the ratchet and pawl transmission mechanism B.

[0008] Further, the gear and rack transmission mechanism A and the gear and rack transmission mechanism B are the same structure, and the gear and rack transmission mechanism A and the gear and rack transmission mechanism B are arranged in up and down in space, the gear and rack transmission mechanism A and the gear and rack transmission mechanism B all include gear and rack matched with gear, and the rack of gear and rack transmission mechanism A and gear and rack transmission mechanism B is arranged in opposite direction.

[0009] Further, the ratchet and pawl transmission mechanism A and the ratchet and pawl transmission mechanism B are the same structure, and the ratchet and pawl transmission mechanism A and the ratchet and pawl transmission mechanism B are arranged in up and down in space, ratchet and pawl transmission mechanism A and ratchet and pawl transmission mechanism B all include tension spring, lever, cam, pawl and ratchet; the ratchet is in transmission connection with motor shaft of motor II, one end of the pawl is movably arranged on the gear, the other end is matched with the ratchet, the cam is arranged on the gear, and the rotating cam can be matched with the pawl (the cam drives the pawl to separate from the ratchet or match with the ratchet), the lever is in transmission connection with the cam, one end of the tension spring is connected with the lever, and the other end is connected with the gear.

[0010] Further, the clamping mechanism A and the clamping mechanism B are the same structure, and all include mechanism main body, clamping block, sliding block II, driving wheel, worm, motor I and worm wheel; the motor I is in transmission connection with the worm, the worm wheel is installed on the mechanism main body, the worm wheel is in meshing arrangement with the worm, the driving wheel is installed on the end face of the worm wheel, one end of the three clamping blocks is movably arranged in the circumferential direction of the mechanism main body, the three sliding blocks II are movably arranged in the circumferential direction of the driving wheel, and the clamping block and the sliding block II are in sliding fit.

[0011] Further, the discharging mechanism includes discharging chute, distributing gear, connecting rod mechanism and movable baffle, the distributing gear is movably connected with the discharging chute through the shaft, one end of the connecting rod mechanism is movably connected with the discharging chute, and the other end is fixedly connected with the movable baffle.

[0012] Further, the connecting rod mechanism includes switch connecting rod, connecting rod I, fixed rod, connecting rod V, connecting rod II and connecting rod III; one end of the switch connecting rod is movably connected with the connecting rod I, the other end penetrates through the bottom surface of the discharging chute, extends into the discharging chute, and the outside of the switch connecting rod is sleeved with a return spring, one end of the fixed rod is fixedly connected with the bottom of the discharging chute, the other end is movably connected with the connecting rod II, the connecting rod II is movably connected with the connecting rod I and the connecting rod III respectively, one end of the connecting rod V is movably connected with the connecting rod III, and the other end is fixedly connected with the movable baffle.

[0013] Further, the cutting mechanism includes a gantry, the gantry is provided with a cutting blade, the gantry guides the cutting blade, the cutting blade is connected with a blade driving mechanism, and preferably the blade driving mechanism adopts a hydraulic driving mechanism.

[0014] Further, the sliding assembly comprises a guide rail and a sliding block I, the sliding block I is installed on the guide rail; the guide rail is fixedly arranged on the table top, and the moving support table is fixedly connected with the sliding block I.

[0015] The beneficial effects of the present application are:

[0016] 1) The log clamping mechanism of the present application is driven by a worm gear mechanism, the rotation of the worm gear drives the simultaneous movement of the three clamping blocks, which expands the processing adaptability of existing equipment to logs of different diameters, to meet the clamping needs of logs of different diameters. At the same time, the front end of the clamping block has anti-slip patterns, which increases the surface roughness of the clamping block and increases the friction between the clamping block and the log, preventing the log from slipping during loading and clamping, making the equipment run more stably.

[0017] 2) The bidirectional moving mechanism of the present application is driven by a gear and rack mechanism, when reaching the limit position, the lever of the bidirectional moving mechanism is actuated, the moving mechanism changes the direction of movement without changing the direction of rotation of the motor, and can automatically feed and reset, avoiding the influence and harm caused by the failure of the control electronic control system, and improving the safety of processing.

[0018] 3) The automatic material distributing mechanism of the present application does not rely on manpower or electronic control equipment, and can automatically distribute the cut logs according to the diameter, improving work efficiency and reducing cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the overall structure diagram of the variable-diameter log automatic cutting equipment of the present application;

[0020] Figure 2 is the three-dimensional structure diagram of the variable-diameter log automatic cutting equipment of the present application;

[0021] Figure 3 is the three-dimensional structure diagram of the clamping mechanism of the variable-diameter log automatic cutting equipment of the present application;

[0022] Figure 4 is the rear view of the clamping mechanism of the variable-diameter log automatic cutting equipment of the present application;

[0023] Figure 5 is the three-dimensional structure diagram of the bidirectional moving mechanism of the variable-diameter log automatic cutting equipment of the present application;

[0024] Figure 6 is the internal structure diagram of the bidirectional moving mechanism of the variable-diameter log automatic cutting equipment of the present application;

[0025] Figure 7 is the three-dimensional structure diagram of the discharging mechanism of the variable-diameter log automatic cutting equipment of the present application;

[0026] Figure 8 is the partial structure diagram of the discharging mechanism of the variable-diameter log automatic cutting device of the present application;

[0027] Figure 9 is the three-dimensional structure diagram of the connecting rod mechanism of the discharging mechanism of the variable-diameter log automatic cutting device of the present application;

[0028] Figure 10 is the installation structure diagram of the connecting rod mechanism of the discharging mechanism of the variable-diameter log automatic cutting device of the present application;

[0029] Figure 11 is the installation structure diagram of the reset spring of the connecting rod mechanism of the discharging mechanism of the variable-diameter log automatic cutting device of the present application;

[0030] In the figure: 1, clamping mechanism, 101, clamping block, 102, sliding block II, 103, driving wheel, 104, anti-skid pattern, 105, worm, 106, motor I, 107, worm gear, 2, bidirectional moving mechanism, 201, gear, 202, tension spring, 203, push rod, 204, rack, 205, cam, 206, pawl, 207, ratchet wheel, 208, motor shaft, 209, motor II, 3, discharging mechanism, 301, discharging chute, 302, distributing, 303, connecting rod mechanism, 3031, switch connecting rod, 3032, connecting rod I, 3033, fixed rod, 3034, connecting rod V, 3035, connecting rod II, 3036, connecting rod III, 3037, reset spring; 304, moving baffle, 4, table top, 5, moving support table, 6, guide rail, 7, sliding block I, 8, cutting mechanism, 801, cutting blade. DETAILED DESCRIPTION

[0031] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0032] As shown in Figure 1 , Figure 2 , the variable-diameter log automatic cutting device of the present application comprises two clamping mechanisms 1, one bidirectional moving mechanism 2, one discharging mechanism 3, one table top 4, one moving support table 5, two guide rails 6, two groups of sliding blocks I 7 and one cutting mechanism 8; the two clamping mechanisms 1 are respectively installed on the moving support table 5 and the table top 4, one of which is fixedly arranged, and the other of which is movably arranged;

[0033] The moving support table 5 and the table top 4 are connected through the guide rail 6 and the sliding block I 7, the bidirectional moving mechanism 2 is installed below the moving support table 5 and connected with the table top 4 through the rack 204, the cutting mechanism 8 is arranged on one side of the clamping mechanism 1, and the discharging mechanism 3 is connected with the table top 4 near the side of the clamping mechanism 1.

[0034] As shown in Figure 3 , Figure 4 each clamping mechanism 1 includes three clamping blocks 101, three sliders 102, a driving wheel 103, a worm 105, a motor 106, a worm wheel 107 and a mechanism body 108,

[0035] For the movable clamping mechanism 1, the motor 106 and the mechanism body 108 are installed on the mobile support table 5, and for the fixed clamping mechanism 1, the motor 106 and the mechanism body 108 are installed on the table top 4.

[0036] The worm wheel 107 is rotatably installed on the mechanism body 108, the worm 105 is connected with the motor shaft of the motor 106, the worm wheel 107 is meshed with the worm 105, the driving wheel 103 is installed on one end face of the worm wheel 107, the driving wheel 103 can rotate with the worm wheel 107, the three sliders 102 are evenly distributed along the driving wheel 103 and are movably installed through a pin shaft, and the three clamping blocks 101 are movably installed through a pin shaft and are evenly distributed along the circumference of the mechanism body 108, and the other end of the clamping block 101 passes through the slider 102. In this embodiment, the front end of each clamping block 101 is provided with a non-slip pattern 104.

[0037] As shown in Figure 5 , Figure 6 the bidirectional moving mechanism 2 includes two gears 201 arranged in an upper and lower position, two extension springs 202, two push rods 203, two racks 204 arranged in an upper and lower position and in opposite directions, two cams 205, two pawls 206, two ratchets 207 arranged in an upper and lower position, and a motor 209. The motor 209 is installed on the mobile support table 5, the motor shaft 208 of the motor 209 is arranged through the two ratchets 207, and the two ratchets 207 are fixedly connected with the motor shaft 208,

[0038] The gears 201 corresponding in position are meshed with the racks 204, one ratchet 207 corresponds to one pawl 206, the pawl 206 is movably installed on the inner end face of the gear 201, and the pawl 206 cooperates with the ratchet 207,

[0039] The cam 205 is arranged on one side of the pawl 206, the cam 205 is connected with the push rod 203, and the push rod 203 can control the engagement state of the pawl 206 and the ratchet 207, so that one pawl 206 cooperates with the ratchet 207, and the other pawl 206 is disengaged from the ratchet 207; the cooperation of the pawl 206 and the ratchet 207 drives the ratchet and the gear to run in the same direction.

[0040] The rotating pin shaft on the poking lever 203 passes through the gear 201, the poking lever 203 is movably installed on the end face of the gear 201, and the two ends of the tension spring 202 are respectively installed on the rotating pin shaft of the poking lever 203 and the outer end face of the fixed pin shaft of the gear 201.

[0041] As shown in Figure 7 , Figure 8 , the discharging mechanism 3 includes a discharging chute 301, a distributing gear 302, a connecting rod mechanism 303 and a movable baffle 304. The distributing gear 302 is movably connected with the discharging chute 301 through a shaft (a fixed seat can be arranged at the bottom of the discharging chute 301 to install the shaft), and the discharging chute 301 is provided with a notch for the distributing gear 302 to pass through. One end of the connecting rod mechanism 303 extends into the discharging chute 301, and the other end is fixedly connected with the movable baffle 304. The discharging chute 301 is provided with multiple stages according to the groove width for discharging, which is used for sorting different sizes of logs.

[0042] As shown in Figure 9 , 10 , 11, the connecting rod mechanism 303 includes a switch connecting rod 3031, a connecting rod I 3032, a fixed rod 3033, a connecting rod V 3034, a connecting rod II 3035 and a connecting rod III 3036. One end of the switch connecting rod 3031 extends into the discharging chute 301, and the top of the switch connecting rod 3031 is provided with a wedge-shaped block. The length of the wedge-shaped block is less than the width of the corresponding position of the discharging chute 301, so as to avoid touching the logs which are not of the corresponding size, causing the movable baffle 304 to be mistakenly opened.

[0043] The switch connecting rod 3031 is movably connected with the connecting rod I 3032. One end of the fixed rod 3033 is fixedly connected with the bottom of the discharging chute 301 (a mounting seat can be arranged at the bottom of the discharging chute 301), and the other end is movably connected with the connecting rod II 3035. The connecting rod II 3035 is movably connected with the connecting rod I 3032 and the connecting rod III 3036 respectively. One end of the connecting rod V 3034 is movably connected with the connecting rod III 3036, and the other end is fixedly connected with the movable baffle 304.

[0044] Note: A reset spring 3037 needs to be arranged on the switch connecting rod 3031, that is, the switch connecting rod 3031 can be automatically reset, so that the movable baffle 304 can be automatically reset after the logs are discharged.

[0045] Working principle:

[0046] The clamping mechanism 1 is used for clamping logs of different diameters; the bidirectional moving mechanism 2 is used for feeding task in processing and changing the moving direction of the moving support table 5 when reaching the limit position; and the distributing mechanism 3 is used for distributing the logs after cutting according to different diameters.

[0047] Working process:

[0048] When the log automatic cutting equipment starts to work, the log put into the equipment is clamped by two clamping mechanisms 1, the motor I 106 starts to run, drives the worm gear 107 and the worm 105 to rotate around their respective axes, and then drives the driving wheel 103 to rotate around its axis, drives the sliding block II 102 to rotate around the axis of the driving wheel 103, and then drives the three clamping blocks 101 to rotate, the anti-skid pattern 104 clamps the log and tightly abuts against the surface of the log. When the log is clamped, the motor I 106 stops running. The locking function of the worm gear 107 and the worm 105 enables the log to remain stable during processing. Then the hydraulic drive mechanism drives the cutting blade 801 to fall down to complete the cutting task.

[0049] After each cutting task is completed, the cutting blade is reset, and the cut log falls into the discharge mechanism 3. When the discharge mechanism 3 is installed, it is inclined to one side. The distribution gear 302 can only be driven to rotate when the log is parallel to the discharge mechanism 3. Therefore, the cut log can slide down along one side of the discharge mechanism 3. When the log exceeding the first specified diameter slides down, it will be blocked by the discharge mechanism 3 and touch the switch connecting rod 3031, driving the entire connecting rod mechanism 303 to move. The connecting rod V 3034 will drive the movable baffle 304 to move downward, and then the log will be discharged through the position of the movable baffle 304. The log smaller than the first specified diameter will continue to slide down along one side of the discharge mechanism 3 (the log smaller than the first specified diameter will not touch the front switch connecting rod 3031), and the log larger than the second specified diameter will be discharged from the movable baffle at this position. The log smaller than the second specified diameter will continue to slide down, and the process will be repeated until the end, so as to complete the automatic distribution of the cut logs according to the diameter.

[0050] Before the next cutting task is performed, the motor II runs to drive the bidirectional movement mechanism 2 to move the movable support table and the clamping mechanism 1 installed above towards the clamping mechanism 1 installed on the table top 4. At the same time, the motor I 106 of the clamping mechanism 1 on the table top 4 rotates in reverse to loosen the log, so that the clamping mechanism 1 on the movable support table 5 can drive the log to move. When the bidirectional movement mechanism 2 moves a specified cutting length, the motor II stops running, and the motor I 106 of the clamping mechanism 1 on the table top 4 rotates in the forward direction to re-clamp the log and perform the cutting task.

[0051] After repeating several times, when the bidirectional moving mechanism 2 moves to the limit position, the dial lever 203 is dialled (the dial lever 203 can be dialled in contact with the stopper arranged on the table top) to turn the cam 205 to the side, and the pawl 206 is locked, so that the upper and lower gears 201 are one driving and one driven, for example, when the upper gear 201 is driving, the moving support table 5 moves forward, and when the lower gear 201 is driving, the moving support table 5 moves backward, and meanwhile, the motor II starts to run to realize reverse movement under the condition that the rotating direction of the motor is unchanged, until the bidirectional moving mechanism 2 reaches the outermost side, the dial lever 203 is dialled again, the moving direction is changed again, and meanwhile, the motors of the two clamping mechanisms 1 start to move reversely to loosen the three clamping blocks 101, so as to put the unprocessed log into the clamping mechanism 1.

[0052] Then the above steps are repeated until the equipment stops running.

[0053] The automatic log cutting equipment with variable diameter can adapt to the processing task of logs with different diameters, and can feed and reset under the condition that the rotating direction of the motor is unchanged, and can automatically complete the diameter sorting work after the processing is completed.

[0054] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic log cutting device with variable diameter, characterized in that, The table (4) includes a tabletop (4) on which two clamping mechanisms (1) are provided, namely clamping mechanism A and clamping mechanism B. Clamping mechanism A is fixedly located at one end of the tabletop (4), and clamping mechanism B can move horizontally on the tabletop, moving closer to or away from clamping mechanism A. A cutting mechanism (8) is provided on one side of the tabletop (4), and the cutting mechanism (8) is located close to clamping mechanism A. On the same side of the tabletop (4) located at the cutting mechanism (8), a discharge mechanism (3) is also provided. The discharge mechanism (3) divides the processed logs according to their diameter. The clamping mechanism A and clamping mechanism B have the same structure, both including a mechanism body (108), clamping blocks (101), slider II (102), drive wheel (103), worm (105), motor I (106) and worm wheel (107); the motor I (106) is connected to the worm (105) for transmission, the worm wheel (107) is mounted on the mechanism body (108), the worm wheel (107) is meshed with the worm (105), the drive wheel (103) is mounted on the end face of the worm wheel (107), one end of the three clamping blocks (101) is movably arranged in the circumferential direction of the mechanism body (108), the three slider II (102) is movably arranged in the circumferential direction of the drive wheel (103), and the clamping blocks (101) and slider II (102) are in sliding cooperation; The discharge mechanism (3) includes a discharge chute (301), a material distribution roller (302), a linkage mechanism (303), and a movable baffle (304). The material distribution roller (302) is movably connected to the discharge chute (301) via a shaft. One end of the linkage mechanism (303) is movably connected to the discharge chute (301), and the other end is fixedly connected to the movable baffle (304). The linkage mechanism (303) includes a switch linkage (3031), linkage I (3032), a fixed rod (3033), linkage V (3034), linkage II (3035), and linkage III (3036); one end of the switch linkage (3031) is movably connected to linkage I (3032), and the other end passes through the bottom surface of the discharge chute (301) and extends into the discharge chute (301), and the switch linkage (3031) An external reset spring (3037) is provided. One end of the fixed rod (3033) is fixedly connected to the bottom of the discharge chute (301), and the other end is movably connected to the connecting rod II (3035). The connecting rod II (3035) is movably connected to the connecting rod I (3032) and the connecting rod III (3036) respectively. One end of the connecting rod V (3034) is movably connected to the connecting rod III (3036), and the other end is fixedly connected to the movable baffle (304).

2. The variable diameter automatic log cutting device according to claim 1, characterized in that, The clamping mechanism B is mounted on the movable support platform (5), which is connected to the table surface (4) via a sliding component, and a bidirectional moving mechanism (2) is provided below the movable support platform (5).

3. The variable diameter automatic log cutting device according to claim 2, characterized in that, The bidirectional moving mechanism (2) includes a motor II (209), a gear and rack transmission mechanism A, a ratchet and pawl transmission mechanism A, and a ratchet and pawl transmission mechanism B; the motor II (209) is connected to the ratchet and pawl transmission mechanism A and the ratchet and pawl transmission mechanism B together, the gear and rack transmission mechanism A is connected to the ratchet and pawl transmission mechanism A, and the gear and rack transmission mechanism B is connected to the ratchet and pawl transmission mechanism B.

4. The variable diameter automatic log cutting device according to claim 3, characterized in that, The gear and rack transmission mechanism A and gear and rack transmission mechanism B have the same structure and are arranged vertically in space. Both gear and rack transmission mechanism A and gear and rack transmission mechanism B include a gear (201) and a rack (204) that meshes with the gear (201). The racks (204) of gear and rack transmission mechanism A and gear and rack transmission mechanism B are arranged in opposite directions.

5. The variable diameter automatic log cutting device according to claim 4, characterized in that, The ratchet-pawl transmission mechanism A and ratchet-pawl transmission mechanism B have the same structure and are arranged vertically in space. Both ratchet-pawl transmission mechanism A and ratchet-pawl transmission mechanism B include a tension spring (202), a lever (203), a cam (205), a pawl (206), and a ratchet (207). The ratchet (207) is connected to the motor shaft (208) of motor II (209). One end of the pawl (206) is movably mounted on the gear (201), and the other end is engaged with the ratchet (207). The cam (205) is mounted on the gear (201) and can engage with the pawl (206). The lever (203) is connected to the cam (205). One end of the tension spring (202) is connected to the lever (203), and the other end is connected to the gear (201).

6. The variable diameter automatic log cutting device according to claim 1, characterized in that, The cutting mechanism (8) includes a gantry frame, on which a cutting blade (801) is provided, and a blade driving mechanism is connected to the cutting blade (801).

7. The variable diameter automatic log cutting device according to claim 2, characterized in that: The sliding assembly includes a guide rail (6) and a slider I (7), with the slider I (7) mounted on the guide rail (6); the guide rail (6) is fixedly mounted on the table surface (4), and the movable support platform (5) is fixedly connected to the slider I (7).

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