Diameter-variable automatic log cutting equipment

Abstract

The diameter-variable automatic log cutting equipment comprises a table top, two clamping mechanisms are arranged on the table top and comprise the clamping mechanism A and the clamping mechanism B, the clamping mechanism A is fixedly arranged at one end of the table top, and the clamping mechanism B can horizontally move on the table top to be close to or away from the clamping mechanism A; a cutting mechanism is arranged on one side of the table top and is close to the clamping mechanism A. A discharging mechanism is further arranged on the side, located on the same side as the cutting mechanism, of the table top, and the discharging mechanism distributes the machined round logs according to the diameters. The diameter-variable automatic log cutting equipment moves back and forth in a straight line, is good in adaptability to logs with different diameters, automatically distributes the logs according to the diameters of the logs, improves the machining efficiency and stability, can perform automatic feeding and automatic resetting, and is low in technical requirement and high in safety.

Description

Technical Field

[0001] The invention relates to the technical field of wood processing machinery and equipment, in particular to an automatic log cutting device with a variable diameter. Background Art

[0002] In the field of wood processing machinery and equipment technology, log cutting equipment is one of the indispensable key equipment. With the rapid development of my country's economy, the demand for wood has increased year by year, and higher requirements have been placed on 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, there is an urgent need for a device that can clamp and process logs of different diameters and divide the materials according to the different diameters, so as to effectively improve the processing efficiency of the equipment and improve the safety and stability of the equipment. Summary of the invention

[0003] In order to solve the problems existing in the background technology, the present invention provides a variable diameter log automatic cutting device that can clamp logs of different diameters, realize automatic feeding and automatic resetting during processing, and automatically divide the logs according to their diameters after processing. The variable diameter log automatic cutting device moves back and forth in a straight line, has good adaptability to logs of different diameters, automatically divides the logs according to their diameters, improves processing efficiency and stability, and can automatically feed and automatically reposition, has low technical requirements, and is highly safe.

[0004] The technical solution adopted by the present invention is:

[0005] A variable diameter log automatic cutting device comprises a table top, wherein two clamping mechanisms are arranged on the table top, including a clamping mechanism A and a clamping mechanism B, wherein the clamping mechanism A is fixedly arranged at one end of the table top, and the clamping mechanism B can move horizontally on the table top, approaching or moving away from the clamping mechanism A; a cutting mechanism is arranged on one side of the table top, and the cutting mechanism is arranged close to the clamping mechanism A; the table top is also provided with a discharging mechanism on the same side as the cutting mechanism, and the discharging mechanism divides the processed logs according to their diameters.

[0006] Furthermore, the clamping mechanism B is arranged on a movable support platform, the movable support platform is connected to the table top via a sliding component, and a bidirectional movable mechanism is arranged below the movable support platform.

[0007] Furthermore, the bidirectional moving mechanism includes a motor II, a gear rack transmission mechanism A, a ratchet and pawl transmission mechanism A, a gear rack transmission mechanism B, and a ratchet and pawl transmission mechanism B; the motor II is transmission-connected to the ratchet and pawl transmission mechanism A and the ratchet and pawl transmission mechanism B, the gear rack transmission mechanism A is transmission-connected to the ratchet and pawl transmission mechanism A, and the gear rack transmission mechanism B is transmission-connected to the ratchet and pawl transmission mechanism B.

[0008] Furthermore, the rack and pinion transmission mechanism A and the rack and pinion transmission mechanism B have the same structure, and the rack and pinion transmission mechanism A and the rack and pinion transmission mechanism B are arranged in upper and lower positions in space. The rack and pinion transmission mechanism A and the rack and pinion transmission mechanism B both include gears and racks that cooperate with the gears, and the racks of the rack and pinion transmission mechanism A and the rack and pinion transmission mechanism B are arranged in relative directions.

[0009] Furthermore, the ratchet pawl transmission mechanism A and the ratchet pawl transmission mechanism B have the same structure, and the ratchet pawl transmission mechanism A and the ratchet pawl transmission mechanism B are arranged in upper and lower positions in space, and the ratchet pawl transmission mechanism A and the ratchet pawl transmission mechanism B both include a tension spring, a lever, a cam, a pawl and a ratchet; the ratchet is transmission-connected to the motor shaft of motor II, one end of the pawl is movably arranged on the gear, and the other end cooperates with the ratchet, the cam is arranged on the gear, and the rotating cam can cooperate with the pawl (the cam drives the pawl to disengage from the ratchet or cooperate with the ratchet), the lever and the cam are transmission-connected, one end of the tension spring is connected to the lever, and the other end is connected to the gear.

[0010] Furthermore, the clamping mechanism A has the same structure as the clamping mechanism B, both of which include a mechanism body, a clamping block, a slider II, a driving wheel, a worm, a motor I and a worm wheel; the motor I is transmission-connected to the worm, the worm wheel is installed on the mechanism body, the worm wheel is meshing 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 body, the three sliders II are movably arranged in the circumferential direction of the driving wheel, and the clamping block and slider II are slidably fitted.

[0011] Furthermore, the discharging mechanism includes a discharging chute, a material dividing rolling gear, a connecting rod mechanism and a movable baffle. The material dividing rolling gear is movably connected to the discharging chute through a shaft, one end of the connecting rod mechanism is movably connected to the discharging chute, and the other end is fixedly connected to the movable baffle.

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

[0013] Furthermore, the cutting mechanism comprises a gantry, a cutting blade is arranged on the gantry, the gantry guides the cutting blade, and a blade driving mechanism is connected to the cutting blade, and preferably the blade driving mechanism adopts a hydraulic driving mechanism.

[0014] Furthermore, the sliding assembly includes a guide rail and a slider I, and the slider I is installed on the guide rail; the guide rail is fixedly arranged on the table, and the movable support table is fixedly connected to the slider I.

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

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

[0017] 2) The bidirectional moving mechanism of the present invention is driven by a gear rack mechanism. When reaching the limit position, the lever of the bidirectional moving mechanism is moved. When the rotation direction of the motor remains unchanged, the moving mechanism changes the movement direction and can feed and reset automatically, thus avoiding the influence and harm that may be caused by the failure of the electronic control system and improving the safety of processing.

[0018] 3) The automatic material dividing mechanism of the present invention does not rely on manpower or electronic control equipment, and can automatically divide the cut logs according to their diameters, thereby improving work efficiency and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall structure diagram of the variable diameter log automatic cutting device of the present invention;

[0020] Figure 2 It is a three-dimensional structural diagram of the variable diameter log automatic cutting device of the present invention;

[0021] Figure 3 It is a three-dimensional structural diagram of the clamping mechanism of the variable diameter log automatic cutting device of the present invention;

[0022] Figure 4 It is a rear view of the clamping mechanism of the variable diameter log automatic cutting device of the present invention;

[0023] Figure 5 It is a three-dimensional structural diagram of the bidirectional moving mechanism of the variable diameter log automatic cutting equipment of the present invention;

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

[0025] Figure 7 It is a three-dimensional structural diagram of the discharging mechanism of the variable diameter log automatic cutting equipment of the present invention;

[0026] Figure 8 It is a partial structural diagram of the discharging mechanism of the variable diameter log automatic cutting equipment of the present invention;

[0027] Fig. 9 It is a three-dimensional structural diagram of the connecting rod mechanism of the discharging mechanism of the variable diameter log automatic cutting equipment of the present invention;

[0028] Fig.10 It is an installation structure diagram of the connecting rod mechanism of the discharging mechanism of the variable diameter log automatic cutting equipment of the present invention;

[0029] Fig.11 It is a structural diagram of the installation of the return spring of the connecting rod mechanism of the discharging mechanism of the automatic log cutting equipment with variable diameter of the present invention;

[0030] In the figure: 1. Clamping mechanism, 101. Clamping block, 102. Slider II, 103. Driving wheel, 104. Anti-slip pattern, 105. Worm, 106. Motor I, 107. Worm wheel, 2. Bidirectional moving mechanism, 201. Gear, 202. Tension spring, 203. Push rod, 204. Rack, 205. Cam, 206. Ratchet, 207. Ratchet, 208. Motor shaft, 209. Motor II, 3. Discharging mechanism , 301, discharging chute, 302, material dividing, 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, movable baffle, 4, table, 5, motor II, 5, movable support table, 6, guide rail, 7, slider I, 8, cutting mechanism, 801, cutting blade. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1 , Figure 2 As shown, the variable diameter log automatic cutting device of the present invention comprises two clamping mechanisms 1, a bidirectional moving mechanism 2, a discharging mechanism 3, a table 4, a moving support table 5, two guide rails 6, two sets of slide blocks Ⅰ 7 and a cutting mechanism 8; the two clamping mechanisms 1 are respectively installed on the moving support table 5 and the table 4, wherein one clamping mechanism 1 is fixedly arranged and the other clamping mechanism 1 is movable;

[0033] The movable support platform 5 and the table top 4 are connected by guide rails 6 and sliders Ⅰ7. The bidirectional movable mechanism 2 is installed under the movable support platform 5 and is connected to the table top 4 through a rack 204. The cutting mechanism 8 is arranged on one side of the clamping mechanism 1, and the discharging mechanism 3 is connected to the table top 4 close to the side of the clamping mechanism 1.

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

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

[0036] The worm wheel 107 is rotatably mounted on the mechanism body 108, the worm 105 is connected to the motor shaft of the motor I 106, the worm wheel 107 and the worm 105 are meshed with each other, the driving wheel 103 is mounted on one end face of the worm wheel 107, the driving wheel 103 can rotate with the worm wheel 107, three sliders II 102 are evenly distributed along the driving wheel 103, and are movably mounted by pins; one end of the three clamping blocks 101 is evenly distributed along the circumference of the mechanism body 108, and is also movably mounted by pins, and the other end of the clamping block 101 passes through the slider II 102. In this embodiment, the front end of each clamping block 101 is arranged with an anti-slip pattern 104.

[0037] like Figure 5 , Figure 6 As shown, the bidirectional moving mechanism 2 includes two upper and lower gears 201, two tension springs 202, two levers 203, two upper and lower racks 204 arranged in opposite directions, two cams 205, two pawls 206, two upper and lower ratchet wheels 207 and a motor II 209. The motor II 209 is installed on the moving support platform 5, and the motor shaft 208 of the motor II 209 passes through the two ratchet wheels 207, and the two ratchet wheels 207 are fixedly connected to the motor shaft 208.

[0038] The gear 201 and the rack 204 at the corresponding position are meshed with each other, and one ratchet 207 corresponds to one pawl 206. The pawl 206 is movably mounted on the inner end surface 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, and the cam 205 is connected to the lever 203. Moving the lever 203 can control the meshing state of the pawl 206 and the ratchet 207, ensuring that one pawl 206 is engaged with the ratchet 207 and the other pawl 206 is disengaged from the ratchet 207; the pawl 206 and the ratchet 207 cooperate to drive the ratchet and the gear to run in the same direction.

[0040] The rotating pin on the lever 203 passes through the gear 201 , and the lever 203 is movably mounted on the end surface of the gear 201 . Both ends of the tension spring 202 are respectively mounted on the rotating pin of the lever 203 and the outer end surface of the fixed pin of the gear 201 .

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

[0042] like Fig. 9 , 10 As shown in FIG. 11, the link mechanism 303 includes a switch link 3031, a link I 3032, a fixed rod 3033, a link V 3034, a link II 3035 and a link III 3036. One end of the switch link 3031 extends into the discharge chute 301, and a wedge block is provided on the top of the switch link 3031. The length of the wedge block is less than the width of the corresponding position of the discharge chute 301 to avoid contact with logs of non-corresponding sizes, which may cause the movable baffle 304 to open by mistake.

[0043] The switch connecting rod 3031 is movably connected to the connecting rod I 3032, one end of the fixed rod 3033 is fixedly connected to the bottom of the discharging chute 301 (a mounting seat can be set at the bottom of the discharging chute 301), and the other end is movably connected to the connecting rod II 3035, and 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.

[0044] Note: A reset spring 3037 needs to be provided on the switch link 3031, that is, the switch link 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 to clamp logs of different diameters; the bidirectional moving mechanism 2 is used to perform feeding tasks during processing and to change the movement direction of the moving support table 5 when reaching the limit position; the dividing mechanism 3 is used to divide the cut logs according to their different diameters.

[0047] Working process:

[0048] When the automatic log cutting equipment starts to work, two clamping mechanisms 1 clamp the logs placed in the equipment, and the motor I 106 starts to run, driving the worm wheel 107 and worm 105 to rotate around their respective axes, thereby driving the driving wheel 103 to rotate around its own axis, driving the slider II 102 to rotate around the axis of the driving wheel 103, and then driving the three clamping blocks 101 to rotate, and the anti-slip pattern 104 clamps the logs, tightly against the surface of the logs. When the logs are clamped, the motor I 106 stops running, and the locking function of the worm wheel 107 and worm 105 enables the logs to remain stable during processing, and then the hydraulic drive mechanism drives the cutting blade 801 to fall to complete the cutting task.

[0049] After each cutting task is completed, the cutting blade is reset and the cut log falls into the discharging mechanism 3. The discharging mechanism 3 is tilted to one side when installed. The dividing rolling gear 302 can only be pushed to rotate when the log is parallel to the discharging mechanism 3. Therefore, the cut log can slide down close to one side of the discharging mechanism 3. When the log exceeds the first set diameter, it will be blocked by the discharging mechanism 3 and touch the switch connecting rod 3031, driving the entire connecting rod mechanism 303 to move, and 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, and the log smaller than the first set diameter will continue to slide down along one side of the discharging mechanism 3 (the log smaller than the first set diameter will not touch the front switch connecting rod 3031), the log larger than the second set diameter will be discharged from the movable baffle here, and the log smaller than the second set diameter will continue to slide down, and this process is repeated until it ends, thereby completing the automatic sorting of the cut logs according to diameter.

[0050] Before the next cutting task, motor II runs, driving the two-way moving mechanism 2 to drive the mobile support table and the clamping mechanism 1 installed on it to move toward the clamping mechanism 1 installed on the table 4. At the same time, the motor I106 of the clamping mechanism 1 on the table 4 rotates in the opposite direction to loosen the log, so that the clamping mechanism 1 on the mobile support table 5 can drive the log to move. After the two-way moving mechanism 2 moves the specified cutting length, motor II stops running, and the motor I106 of the clamping mechanism 1 on the table 4 runs forward to re-clamp the log and perform the cutting task.

[0051] After repeating several times, when the two-way moving mechanism 2 moves to the extreme position, the lever 203 is pushed (the lever 203 can be pushed by contacting the block set on the table), driving the cam 205 to turn and jamming the pawl 206 on one side, so that the upper and lower gears 201 are one active and one driven. For example, when the upper one moves actively, the mobile support platform 5 moves forward, and when the lower one moves actively, the mobile support platform 5 moves backward. At the same time, motor II starts to run, and reverse movement is achieved without changing the direction of motor rotation. Until the two-way moving mechanism 2 reaches the outermost side, the lever 203 is pushed again, and the moving direction changes again. At the same time, the motors of the two clamping mechanisms 1 start to move in the opposite direction, loosening the three clamping blocks 101 so that the unprocessed logs can be placed in the clamping mechanism 1.

[0052] Repeat the above steps until the device stops running.

[0053] The variable diameter log automatic cutting device of the present invention can adapt to the processing tasks of logs with different diameters, and can feed and reset when the rotation direction of the motor remains unchanged, and can automatically complete the work of dividing the logs according to the diameter after the processing is completed.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic log cutting device with variable diameter, characterized in that: The table top (4) comprises two clamping mechanisms (1) provided on the table top (4), including a clamping mechanism A and a clamping mechanism B. The clamping mechanism A is fixedly arranged at one end of the table top (4), and the clamping mechanism B can move horizontally on the table top, approaching or moving away from the clamping mechanism A. A cutting mechanism (8) is provided on one side of the table top (4), and the cutting mechanism (8) is arranged close to the clamping mechanism A. The table top (4) is also provided with a discharging mechanism (3) on the same side as the cutting mechanism (8), and the discharging mechanism (3) divides the processed logs according to their diameters.

2. The variable diameter log automatic cutting device according to claim 1, characterized in that: The clamping mechanism B is arranged on a movable support platform (5); the movable support platform (5) is connected to the table top (4) via a sliding assembly; and a bidirectional movable mechanism (2) is arranged below the movable support platform (5).

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

4. The variable diameter log automatic cutting device according to claim 1, characterized in that: The rack and pinion transmission mechanism A and the rack and pinion transmission mechanism B have the same structure, and the rack and pinion transmission mechanism A and the rack and pinion transmission mechanism B are arranged in upper and lower positions in space. The rack and pinion transmission mechanism A and the rack and pinion transmission mechanism B both include a gear (201) and a rack (204) matched with the gear (201), and the racks (204) of the rack and pinion transmission mechanism A and the rack and pinion transmission mechanism B are arranged in opposite directions.

5. The variable diameter log automatic cutting device according to claim 1, characterized in that: The ratchet pawl transmission mechanism A and the ratchet pawl transmission mechanism B have the same structure, and the ratchet pawl transmission mechanism A and the ratchet pawl transmission mechanism B are arranged in upper and lower positions in space. The ratchet pawl transmission mechanism A and the ratchet pawl transmission mechanism B both comprise a tension spring (202), a lever (203), a cam (205), a pawl (206) and a ratchet wheel (207); the ratchet wheel (207) is transmission-connected to a motor shaft (208) of a motor II (209); one end of the pawl (206) is movably arranged on a gear (201), and the other end is matched with the ratchet wheel (207); the cam (205) is arranged on the gear (201), and the cam (205) can match with the pawl (206); the lever (203) and the cam (205) are transmission-connected; 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 log automatic cutting device according to claim 1, characterized in that: The clamping mechanism A has the same structure as the clamping mechanism B, and both include a mechanism body (108), a clamping block (101), a slider II (102), a driving wheel (103), a worm (105), a motor I (106) and a worm wheel (107); the motor I (106) is transmission-connected with the worm (105); the worm wheel (107) is mounted on the mechanism body (108); the worm wheel (107) is meshed with the worm (105); the driving wheel (103) is mounted on the end surface 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 sliders II (102) are movably arranged in the circumferential direction of the driving wheel (103); and the clamping block (101) and the slider II (102) are slidably matched.

7. The variable diameter log automatic cutting device according to claim 1, characterized in that: The discharging mechanism (3) comprises a discharging chute (301), a material dividing rolling gear (302), a connecting rod mechanism (303) and a movable baffle (304); the material dividing rolling gear (302) is movably connected to the discharging chute (301) via a shaft; one end of the connecting rod mechanism (303) is movably connected to the discharging chute (301) and the other end is fixedly connected to the movable baffle (304).

8. The variable diameter log automatic cutting device according to claim 7, characterized in that: The connecting rod mechanism (303) comprises a switch connecting rod (3031), a connecting rod I (3032), a fixing 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) is movably connected to the connecting rod 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 connecting rod (3031) A return spring (3037) is sleeved on the outside, 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), and 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).

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

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

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