Core veneer discharging and stacking device for plywood production

Abstract

The invention discloses a core veneer discharging and stacking device for plywood production, and belongs to the technical field of core veneer stacking, the core veneer discharging and stacking device comprises a conveying device, the conveying device is used for conveying core veneers, a positioning device and a stacking device are arranged on the conveying device, the positioning device is used for positioning and placing the core veneers to be stacked, and the stacking device is used for stacking the core veneers to be stacked. The stacking device is used for stacking the core plates. According to the core plate conveying device, core plates can be automatically conveyed, the conveying speed is constant, after the lowest core plate of the inclined part stops moving, the core plates of the inclined part stop moving at the same time, and the core plates are prevented from colliding in the conveying process; the positioning device can position to-be-stacked core plates, the core plates are automatically stacked in multiple layers, and the core plates can be kept aligned under the action of the side rotating rods and the front limiting rods after being stacked; after the core plates are stacked to a certain height, conveying of subsequent core plates is stopped at the same time, after the stacked core plates are transferred away by the forklift and the placing table is reset, core plate stacking is started again, the automation degree is high, and continuity is good.

Description

Technical Field

[0001] The invention relates to the technical field of core board stacking, in particular to a core board blanking and stacking device for plywood production. Background Art

[0002] Plywood is a composite material made of multiple layers of thin wood sheets bonded together with glue. It is widely used due to its excellent physical properties and diverse applications. The core board of plywood is the core part of plywood, usually made of multiple layers of wood sheets bonded together with glue to form a composite material with high strength and light weight. Reasonable stacking of core boards can improve logistics efficiency and reduce losses, and is an indispensable part of modern supply chain management. The stacking of core boards is mainly achieved by stacking. The core board stacking device in the prior art mainly stacks the core boards one by one, but the stacking positioning accuracy is insufficient, and the control system is relatively complex and the degree of automation is not high, which cannot meet production needs. Summary of the invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: a core board unloading and stacking device for plywood production, comprising a conveying device, the conveying device comprising a bottom plate, the conveying device is used to convey the core boards, the conveying device is provided with a positioning device and a stacking device, the positioning device comprises a movable plate, the positioning device is used to position and place the core boards to be stacked, the stacking device comprises a placing table, and the stacking device is used to stack the core boards.

[0004] Furthermore, the conveying device includes a slide rail fixedly mounted on a base plate, a fixed frame fixedly mounted on the base plate, a conveying motor fixedly mounted on the fixed frame, a motor wheel fixedly mounted on the motor shaft of the conveying motor, a plurality of conveying rods rotatably mounted on the fixed frame, a conveying wheel fixedly mounted on the conveying rod, an active transmission belt is wound around the conveying wheel and the motor wheel on the conveying rod closest to the conveying motor, and a connecting transmission belt is wound around the conveying wheels on every two adjacent conveying rods.

[0005] Furthermore, a rotating rod is rotatably mounted on the fixed frame, a plurality of driven rollers are rotatably mounted on the rotating rod, driven wheels are fixedly mounted on the driven rollers, a constant speed transmission belt is wound around the driven wheels on every two adjacent driven rollers, and a free roller is rotatably mounted on the rotating rod.

[0006] The core board is placed on the conveying roller, and the rotation of the conveying motor drives the motor wheel to rotate, and the active transmission belt rotates to drive the conveying wheel and conveying roller close to the conveying motor side to rotate, and the connecting transmission belt drives all conveying rollers to rotate synchronously, and the conveying roller conveys the core board, and then the core board is conveyed to the driven roller. The constant speed transmission belt makes all the driven rollers rotate at the same speed, and the driven roller conveys the core board to the lifting plate, and the free roller plays a guiding role. When the bottom core board reaches the lifting plate, the subsequent core boards are blocked. Since the speeds of the driven rollers are the same, when the bottom core board is blocked, the bottom driven roller stops rotating, causing all driven rollers to stop rotating, and the subsequent core boards stop being conveyed, to prevent the subsequent core boards from being conveyed after the bottom core board stops, resulting in collision of the core boards.

[0007] Furthermore, the positioning device includes four rollers rotatably mounted on a movable plate, the rollers roll on a bottom plate, a power motor is fixedly mounted on the movable plate, a motor gear is fixedly mounted on a motor shaft of the power motor, two side gears are rotatably mounted on the movable plate, a side screw is fixedly mounted on the side gear, an internal threaded sleeve is rotatably mounted in the side screw through a thread, a lifting plate is fixedly mounted on the internal threaded sleeve, a conveying device conveys the core plate to the lifting plate, an aligning inclined surface is arranged on the lifting plate, a lower transmission belt is wrapped around the motor gear and the two side gears, a number of slide-out columns are arranged on the lifting plate, and the lifting plate is rotatably mounted on the rotating rod.

[0008] Furthermore, the movable plate is provided with a dialing mechanism, which includes a lifting screw rotatably mounted on the movable plate, an upper transmission belt is wound around the lifting screw and two side gears, a lifting plate is fixed on the internal threaded sleeve, an internal threaded barrel is fixedly mounted on the lifting plate, a threaded transmission is formed between the internal threaded barrel and the lifting screw, a top turntable is fixedly mounted on the lifting screw, a rotating dial is rotatably mounted on the internal threaded barrel, four dial rods are fixedly mounted on the rotating dial, four vertical sliding rods are fixedly mounted on the rotating dial, the vertical sliding rods are slidably mounted on the top turntable, and a vertical spring is arranged between the top turntable and the rotating dial.

[0009] The lifting plate is lifted up and the movable plate is moved upwards, thereby driving the movable plate to roll on the bottom plate through the rollers and the rotating rod to rotate.

[0010] Furthermore, the stacking device includes a fixed block fixedly installed on the base plate, a placing table and a slide rail are slidably installed, a release spring is arranged between the placing table and the base plate, an outer rotating rod is rotatably installed on the placing table, an inner sliding rod is slidably installed inside the outer rotating rod, a side rotating rod is rotatably installed on the inner sliding rod, the side rotating rod is rotatably installed on the placing table, a front rotating rod is rotatably installed on the placing table, a front inner rod is slidably installed inside the front rotating rod, a front limit rod is rotatably installed on the front inner rod, and the front limit rod is rotatably installed on the placing table.

[0011] Furthermore, a guide column is rotatably mounted on the fixed block, a pulling frame is fixedly mounted on the placement table, a winding disk is fixedly mounted on the lifting screw rod, a pull rope is wound on the winding disk, an end of the pull rope is fixedly mounted on the pulling frame, the pull rope passes around the guide column, and the pull rope is in a taut state in the initial state.

[0012] Furthermore, a limiting mechanism is provided on the movable plate, and the limiting mechanism includes a pushing block fixedly installed on the movable plate, a lifting block is slidably installed on the side screw rod, a rotating rod is rotatably installed on the lifting block, a blocking block is rotatably installed on the rotating rod, an arc surface is provided on the blocking block, a fixed seat is fixedly installed on the movable plate, the blocking block and the fixed seat are rotatably installed, and in the initial state, the slow-release spring is in a stretched state.

[0013] Furthermore, a spring is provided between the front inner rod and the front rotating rod, and a spring is provided between the inner sliding rod and the outer rotating rod.

[0014] When the lifting plate is lifted up, the lifting block is lifted up, and the lifting block is lifted up by the lifting plate, and the lifting plate and the inner threaded sleeve are lifted up, so that the lifting block is lifted up, thereby driving the rotating rod to rotate, thereby driving the blocking block to rotate around the fixed seat. When the lifting block rises to a certain height, that is, a certain amount of core plates are stacked on the placement table, the blocking block leaves the front of the placement table, and the slow-release spring rebounds, driving the placement table to slide along the slide rail to the side of the fixed frame. At this time, the stacked core plates are taken away by tools such as forklifts, and then the power motor is flipped, driving the winding disk to rotate, winding the pulling rope, pulling the placement table back to the initial position, the slow-release spring is stretched, and the lifting plate descends at the same time, driving the lifting block and the blocking block to reset, when the placement table contacts the blocking block, the blocking block is lifted up by the placement table, and when the placement table passes the blocking block, the blocking block falls due to gravity and is relocated behind the placement table.

[0015] In the initial state, the front limit rod and the inner sliding rod are in a lifted state. When the core plate is pushed onto the placement table by the push rod, the front limit rod and the side rotation rod limit the core plate. Due to the pushing direction of the push rod, the core plate is tightly attached to the front limit rod and the side rotation rod. When the push rod rises to leave the top of the core plate, the push rod begins to contact the side rotation rod and drives the side rotation rod to rotate downward. The spring between the inner sliding rod and the outer rotation rod is compressed, and the side rotation rod presses the front limit rod down. The spring between the front rotation rod and the front inner rod is compressed, so that the push rod can pass through the side rotation rod and the front limit rod smoothly, and then the front limit rod and the side rotation rod are reset under the rebound action of the spring.

[0016] Compared with the prior art, the present invention has the following advantages: (1) the conveying device provided in the present invention can automatically convey the core boards, and keep the conveying speed constant during the conveying process. At the same time, when the lowest core board in the inclined part stops moving, the core boards in the inclined part also stop moving at the same time, so as to prevent the core boards from colliding and damaging during the conveying process; (2) the positioning device provided in the present invention can position the core boards to be stacked, and automatically stack the core boards in multiple layers. At the same time, after stacking, the core boards can be kept aligned and stacked neatly under the action of the side rotating rod and the front limiting rod; (3) the stacking device provided in the present invention automatically moves the stacked core boards away after the core boards are stacked to a certain height, and stops conveying the subsequent core boards. When the stacked core boards are moved away by the forklift, the placement table is reset, and the core board stacking starts again. The automation is high and the continuity is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the conveying device of the present invention.

[0019] Figure 3 For the present invention Figure 2 A local enlarged schematic diagram of point A in the middle.

[0020] Figure 4 For the present invention Figure 2 A local enlarged schematic diagram of point B in the middle.

[0021] Figure 5 For the present invention Figure 2 A partial enlarged schematic diagram of point C in the middle.

[0022] Figure 6 The structure of the positioning device of the present invention is shown in FIG. Figure 1 .

[0023] Figure 7 The structure of the positioning device of the present invention is shown in FIG. Figure 2 .

[0024] Figure 8 It is a schematic diagram of the structure of the dialing mechanism of the present invention.

[0025] Fig. 9 The stacking device structure of the present invention is shown in FIG. Figure 1 .

[0026] Fig.10 For the present invention Fig. 9 A local enlarged schematic diagram of point D in the middle.

[0027] Fig.11 The stacking device structure of the present invention is shown in FIG. Figure 2 .

[0028] Reference numerals: 101-bottom plate; 102-slide rail; 103-fixed frame; 104-conveying motor; 105-motor wheel; 106-active transmission belt; 107-conveying stick; 108-conveying wheel; 109-connecting transmission belt; 110-rotating rod; 111-driven roller; 112-driven wheel; 113-constant speed transmission belt; 114-free roller; 201-moving plate; 202-roller; 203-lifting plate; 204-core plate; 205-internal thread sleeve; 206-side screw rod; 207-power motor; 208-motor gear; 209-side gear; 210-lower transmission belt; 211-upper transmission belt; 212-slide-out column; 213-lifting screw rod; 214-top turntable; 215-vertical slide rod; 216-vertical spring; 217-inner threaded cylinder; 218-rotating dial; 219-dial rod; 220-alignment slope; 301-placing table; 302-slow-release spring; 303-lifting block; 304-rotating rod; 305-fixed seat; 306-blocking block; 307-outer rotating rod; 308-inner sliding rod; 309-side rotating rod; 310-winding disk; 311-pull rope; 312-fixed block; 313-guide column; 314-push block; 315-pull frame; 316-front rotating rod; 317-front inner rod; 318-front limit rod. DETAILED DESCRIPTION

[0029] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0030] Example: Reference Figure 1-Figure 11 A core board blanking and stacking device for plywood production includes a conveying device, the conveying device includes a bottom plate 101, the conveying device is used to convey the core boards, a positioning device and a stacking device are arranged on the conveying device, the positioning device includes a moving plate 201, the positioning device is used to position and place the core boards to be stacked, the stacking device includes a placing table 301, and the stacking device is used to stack the core boards.

[0031] like Figure 2-Figure 5 As shown, the conveying device includes a slide rail 102 fixedly mounted on a base plate 101, a fixed frame 103 fixedly mounted on the base plate 101, a conveying motor 104 fixedly mounted on the fixed frame 103, a motor wheel 105 fixedly mounted on the motor shaft of the conveying motor 104, a plurality of conveying rods 107 rotatably mounted on the fixed frame 103, a conveying wheel 108 fixedly mounted on the conveying rod 107, an active transmission belt 106 is wound around the conveying wheel 108 and the motor wheel 105 on the conveying rod 107 closest to the conveying motor 104, and a connecting transmission belt 109 is wound around the conveying wheels 108 on every two adjacent conveying rods 107.

[0032] like Figure 2-Figure 5As shown, a rotating rod 110 is rotatably mounted on the fixed frame 103, a plurality of driven rollers 111 are rotatably mounted on the rotating rod 110, a driven wheel 112 is fixedly mounted on the driven roller 111, a constant speed transmission belt 113 is wound around the driven wheel 112 on every two adjacent driven rollers 111, and a free roller 114 is rotatably mounted on the rotating rod 110.

[0033] The core board is placed on the conveying roller 107, and the conveying motor 104 rotates to drive the motor wheel 105 to rotate, and the active transmission belt 106 rotates to drive the conveying wheel 108 and the conveying roller 107 close to the conveying motor 104 side to rotate, and the connecting transmission belt 109 drives all the conveying rollers 107 to rotate synchronously, and the conveying roller 107 conveys the core board, and then the core board is conveyed to the driven roller 111, and the constant speed transmission belt 113 makes all the driven rollers 111 rotate at the same speed. The driven roller 111 conveys the core board to the lifting plate 203, and the free roller 114 plays a guiding role. When the bottom core board reaches the lifting plate 203, the subsequent core boards are blocked. Since the speeds of the driven rollers 111 are the same, when the bottom core board is blocked, the bottom driven roller 111 stops rotating, so that all the driven rollers 111 stop rotating, and the subsequent core boards stop being conveyed, to prevent the subsequent core boards from being conveyed after the bottom core board stops, resulting in collision of the core boards.

[0034] like Figure 6-Figure 8 As shown, the positioning device includes four rollers 202 rotatably mounted on a moving plate 201, the rollers 202 roll on the bottom plate 101, a power motor 207 is fixedly mounted on the moving plate 201, a motor gear 208 is fixedly mounted on the motor shaft of the power motor 207, two side gears 209 are rotatably mounted on the moving plate 201, a side screw rod 206 is fixedly mounted on the side gear 209, an internal threaded sleeve 205 is rotatably mounted in the side screw rod 206 through a thread, a lifting plate 203 is fixedly mounted on the internal threaded sleeve 205, a conveying device conveys the core plate 204 to the lifting plate 203, an aligning inclined surface 220 is provided on the lifting plate 203, a lower transmission belt 210 is wrapped around the motor gear 208 and the two side gears 209, a plurality of slide-out columns 212 are provided on the lifting plate 203, and the lifting plate 203 is rotatably mounted with the rotating rod 110.

[0035] like Figure 6-Figure 8As shown, a dialing mechanism is provided on the movable plate 201, and the dialing mechanism includes a lifting screw rod 213 rotatably mounted on the movable plate 201, an upper transmission belt 211 is wound around the lifting screw rod 213 and two side gears 209, a lifting plate 203 is fixed on the internal threaded sleeve 205, an internal threaded barrel 217 is fixedly mounted on the lifting plate 203, the internal threaded barrel 217 and the lifting screw rod 213 form a threaded transmission, a top turntable 214 is fixedly mounted on the lifting screw rod 213, a rotating dial 218 is rotatably mounted on the internal threaded barrel 217, four dial rods 219 are fixedly mounted on the rotating dial 218, four vertical slide rods 215 are fixedly mounted on the rotating dial 218, the vertical slide rods 215 are slidably mounted on the top turntable 214, and a vertical spring 216 is arranged between the top turntable 214 and the rotating dial 218.

[0036] By aligning the inclined surface 220, the core plate 204 can reach the lifting plate 203. The subsequent downward conveying of the core plate 204 will push the core plate 204 on the lifting plate 203, so that the core plate 204 contacts and fits with the end of the lifting plate 203. The power motor 207 rotates to drive the motor gear 208 to rotate, and drives the side gear 209 and the side screw rod 206 to rotate through the lower transmission belt 210. The side gear 209 drives the lifting screw rod 213 to rotate through the upper transmission belt 211, thereby driving the internal threaded barrel 217, the internal threaded sleeve 205 and the lifting plate 203 to rise. At the same time, the lifting screw rod 213 rotates to drive the top turntable 214 to rotate, thereby driving the rotating dial 218 through the vertical slide rod 215. Rotate, so that the core plate 204 is pushed onto the placement table 301 via the slide-out column 212 through the lever 219. Since the lifting plate 203 and the internal threaded tube 217 are rising, the rotating dial 218 and the lever 219 are raised while rotating relative to the movable plate 201. After the core plate 204 is pushed onto the placement table 301 by the lever 219, since the lever 219 is rising, when the core plate 204 reaches the placement table 301, the lever 219 reaches above the core plate 204 and will not push the core plate 204 out of the placement table 301. Since the lifting plate 203 rises, it will drive the movable plate 201 to roll on the bottom plate 101 through the roller 202, and at the same time drive the rotating rod 110 to rotate.

[0037] like Figure 9-11 As shown, the stacking device includes a fixed block 312 fixedly installed on the base plate 101, a placing table 301 and a slide rail 102 are slidably installed, a release spring 302 is arranged between the placing table 301 and the base plate 101, an outer rotating rod 307 is rotatably installed on the placing table 301, an inner sliding rod 308 is slidably installed in the outer rotating rod 307, a side rotating rod 309 is rotatably installed on the inner sliding rod 308, and the side rotating rod 309 is rotatably installed with the placing table 301, a front rotating rod 316 is rotatably installed on the placing table 301, a front inner rod 317 is slidably installed in the front rotating rod 316, a front limit rod 318 is rotatably installed on the front inner rod 317, and the front limit rod 318 is rotatably installed with the placing table 301.

[0038] like Figure 9-11 As shown, a guide column 313 is rotatably mounted on the fixed block 312, a pulling frame 315 is fixedly mounted on the placement table 301, a winding disk 310 is fixedly mounted on the lifting screw rod 213, a pull rope 311 is wound around the winding disk 310, an end of the pull rope 311 is fixedly mounted on the pulling frame 315, the pull rope 311 passes around the guide column 313, and the pull rope 311 is in a taut state in the initial state.

[0039] like Figure 9-11 As shown, a limiting mechanism is provided on the movable plate 201, and the limiting mechanism includes a push block 314 fixedly mounted on the movable plate 201, a lifting block 303 is slidably mounted on the side screw rod 206, a rotating rod 304 is rotatably mounted on the lifting block 303, a blocking block 306 is rotatably mounted on the rotating rod 304, an arc surface is provided on the blocking block 306, a fixing seat 305 is fixedly mounted on the movable plate 201, and the blocking block 306 is rotatably mounted with the fixing seat 305. In the initial state, the slow-release spring 302 is in a stretched state.

[0040] like Figure 9-11 As shown, a spring is provided between the front inner rod 317 and the front rotating rod 316 , and a spring is provided between the inner sliding rod 308 and the outer rotating rod 307 .

[0041] When the core plate 204 is moved onto the placement table 301, the movable plate 201 rolls relative to the bottom plate 101 and moves with the placement table 301 through the push block 314 and the stop block 306. As the winding disk 310 rotates, the pull rope 311 is loosened. At the same time, as the lifting plate 203 and the internal threaded sleeve 205 rise, when the internal threaded sleeve 205 rises along the side screw rod 206 to contact the lifting block 303, the lifting block 303 is driven to rise, thereby driving the rotating rod 304 to rotate, thereby driving the stop block 306 to rotate around the fixed seat 305. When the lift block 303 rises to a certain height, that is, a certain amount of core plates 204 are stacked on the placement table 301, the stop block 306 leaves the placement table 3 01 in front, at this time, the slow-release spring 302 rebounds, driving the placement table 301 to slide along the slide rail 102 to the side of the fixed frame 103, and the stacked core board is taken away by a forklift or other tools, and then the power motor 207 flips over, driving the winding disk 310 to rotate, and rewinding the pull rope 311, pulling the placement table 301 back to the initial position, the slow-release spring 302 is stretched, and the lifting plate 203 descends at the same time, driving the lifting block 303 and the blocking block 306 to reset, and when the placement table 301 contacts the blocking block 306, the blocking block 306 is lifted by the placement table 301, and when the placement table 301 passes the blocking block 306, the blocking block 306 falls due to gravity and is located behind the placement table 301 again.

[0042] In the initial state, the front limit rod 318 and the inner slide rod 308 are in the lifted state. When the core plate 204 is moved onto the placement table 301 by the lever 219, the front limit rod 318 and the side rotation rod 309 limit the core plate 204. Due to the moving direction of the lever 219, the core plate 204 is tightly attached to the front limit rod 318 and the side rotation rod 309. When the lever 219 rises to leave the top of the core plate 204, the lever 219 starts to move with the The side rotating rod 309 contacts and drives the side rotating rod 309 to rotate downward, the spring between the inner sliding rod 308 and the outer rotating rod 307 is compressed, the side rotating rod 309 presses the front limit rod 318 downward, and the spring between the front rotating rod 316 and the front inner rod 317 is compressed, so that the lever 219 can smoothly pass through the side rotating rod 309 and the front limit rod 318, and then the front limit rod 318 and the side rotating rod 309 are reset under the rebound action of the spring.

[0043] The working principle of the core board unloading and stacking device for plywood production disclosed by the present invention is as follows: the core board 204 is placed on the conveying roller 107, the conveying motor 104 rotates to drive the motor wheel 105 to rotate, and the active transmission belt 106 rotates to drive the conveying wheel 108 and the conveying roller 107 close to the conveying motor 104 side to rotate, and the connecting transmission belt 109 drives all the conveying rollers 107 to rotate synchronously, and the conveying roller 107 conveys the core board, and then the core board is conveyed to the driven roller 111, and the constant speed transmission belt 112 is used to drive the core board to be transported to the driven roller 111. 13 makes all the driven rollers 111 rotate at the same speed, and the driven rollers 111 convey the core plates to the lifting plate 203. The free rollers 114 play a guiding role. When the lowest core plate reaches the lifting plate 203, the subsequent core plates are blocked. Since the driven rollers 111 rotate at the same speed, when the lowest core plate is blocked, the lowest driven roller 111 stops rotating, causing all the driven rollers 111 to stop rotating and the subsequent core plates to stop conveying, so as to prevent the subsequent core plates from being conveyed after the lower core plates stop, resulting in collision of the core plates. By aligning the inclined surface 220, the core plate 204 can reach the lifting plate 203. The subsequent downward conveying of the core plate 204 will push the core plate 204 on the lifting plate 203, so that the core plate 204 contacts and fits with the end of the lifting plate 203. The power motor 207 rotates to drive the motor gear 208 to rotate, and drives the side gear 209 and the side screw rod 206 to rotate through the lower transmission belt 210. The side gear 209 drives the lifting screw rod 213 to rotate through the upper transmission belt 211, thereby driving the internal threaded barrel 217, the internal threaded sleeve 205 and the lifting plate 203 to rise. At the same time, the lifting screw rod 213 rotates to drive the top turntable 214 to rotate, thereby driving the rotating dial 218 through the vertical slide rod 215. Rotate, so that the core plate 204 is pushed onto the placement table 301 via the slide-out column 212 through the lever 219. Since the lifting plate 203 and the internal threaded tube 217 are rising, the rotating dial 218 and the lever 219 are raised while rotating relative to the movable plate 201. After the core plate 204 is pushed onto the placement table 301 by the lever 219, since the lever 219 is rising, when the core plate 204 reaches the placement table 301, the lever 219 reaches above the core plate 204 and will not push the core plate 204 out of the placement table 301. Since the lifting plate 203 rises, it will drive the movable plate 201 to roll on the bottom plate 101 through the roller 202, and at the same time drive the rotating rod 110 to rotate.When the core plate 204 is moved onto the placement table 301, in the initial state, the front limit rod 318 and the inner slide rod 308 are in the lifted state. When the core plate 204 is moved onto the placement table 301 by the lever 219, the front limit rod 318 and the side rotation rod 309 limit the core plate 204. Due to the moving direction of the lever 219, the core plate 204 is tightly attached to the front limit rod 318 and the side rotation rod 309. When the lever 219 rises to leave the top of the core plate 204, , the lever 219 begins to contact the side rotating rod 309 and drives the side rotating rod 309 to rotate downward, the spring between the inner sliding rod 308 and the outer rotating rod 307 is compressed, the side rotating rod 309 presses the front limit rod 318 downward, and the spring between the front rotating rod 316 and the front inner rod 317 is compressed, so that the lever 219 can smoothly pass through the side rotating rod 309 and the front limit rod 318, and then the front limit rod 318 and the side rotating rod 309 are reset under the rebound action of the spring. The movable plate 201 rolls relative to the bottom plate 101 and moves with the placement table 301 through the push block 314 and the blocking block 306. As the winding disk 310 rotates, the pull rope 311 is loosened. At the same time, as the lifting plate 203 and the internal threaded sleeve 205 rise, when the internal threaded sleeve 205 rises along the side screw rod 206 to contact the lifting block 303, the lifting block 303 is driven to rise, thereby driving the rotating rod 304 to rotate, thereby driving the blocking block 306 to rotate around the fixed seat 305. When the lifting block 303 rises to a certain height, that is, a certain amount of core plates 204 are stacked on the placement table 301, the blocking block 306 leaves the front of the placement table 301, and the slow release is performed at this time. The spring 302 rebounds, driving the placement table 301 to slide along the slide rail 102 to the side of the fixed frame 103. At this time, the stacked core board is taken away by a forklift or other tool. Then the power motor 207 flips over, driving the winding disk 310 to rotate, winding the pull rope 311, pulling the placement table 301 back to the initial position, and the slow-release spring 302 is stretched. At the same time, the lifting plate 203 descends, driving the lifting block 303 and the blocking block 306 to reset. When the placement table 301 contacts the blocking block 306, the blocking block 306 is lifted by the placement table 301. After the placement table 301 passes the blocking block 306, the blocking block 306 falls due to gravity and is located behind the placement table 301 again.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for stacking and unloading core boards for plywood production, comprising a conveying device, characterized in that: The conveying device comprises a bottom plate (101), and is used to convey core boards. A positioning device and a stacking device are provided on the conveying device. The positioning device comprises a movable plate (201), and is used to position and place core boards to be stacked. The stacking device comprises a placement table (301), and is used to stack core boards.

2. The device for stacking and unloading core boards for plywood production according to claim 1, characterized in that: The conveying device comprises a slide rail (102) fixedly mounted on a bottom plate (101); a fixing frame (103) fixedly mounted on the bottom plate (101); a conveying motor (104) fixedly mounted on the fixing frame (103); a motor wheel (105) fixedly mounted on the motor shaft of the conveying motor (104); a plurality of conveying rods (107) rotatably mounted on the fixing frame (103); a conveying wheel (108) fixedly mounted on the conveying rod (107); an active transmission belt (106) is wound around the conveying wheel (108) and the motor wheel (105) on the conveying rod (107) closest to the conveying motor (104); and a connecting transmission belt (109) is wound around the conveying wheels (108) on every two adjacent conveying rods (107).

3. The device for stacking and unloading core boards for plywood production according to claim 2, characterized in that: A rotating rod (110) is rotatably mounted on the fixed frame (103), a plurality of driven rollers (111) are rotatably mounted on the rotating rod (110), a driven wheel (112) is fixedly mounted on the driven roller (111), a constant speed transmission belt (113) is wound around the driven wheel (112) on every two adjacent driven rollers (111), and a free roller (114) is rotatably mounted on the rotating rod (110).

4. The device for stacking and unloading core boards for plywood production according to claim 3, characterized in that: The positioning device comprises four rollers (202) rotatably mounted on the moving plate (201), the rollers (202) rolling on the bottom plate (101), a power motor (207) fixedly mounted on the moving plate (201), a motor gear (208) fixedly mounted on the motor shaft of the power motor (207), two side gears (209) rotatably mounted on the moving plate (201), a side screw rod (206) fixedly mounted on the side gear (209), a screw rod (206) inside the side screw rod (206) An internal thread sleeve (205) is rotatably mounted on the internal thread sleeve (205), a lifting plate (203) is fixedly mounted on the internal thread sleeve (205), a conveying device conveys the core plate (204) to the lifting plate (203), an aligning inclined surface (220) is arranged on the lifting plate (203), a lower transmission belt (210) is wound around the motor gear (208) and two side gears (209), a plurality of slide-out columns (212) are arranged on the lifting plate (203), and the lifting plate (203) is rotatably mounted on the rotating rod (110).

5. The device for stacking and unloading core boards for plywood production according to claim 4, characterized in that: The movable plate (201) is provided with a pull-out mechanism, the pull-out mechanism comprising a lifting screw (213) rotatably mounted on the movable plate (201), an upper transmission belt (211) being wound around the lifting screw (213) and two side gears (209), a lifting plate (203) being fixed on the internal thread sleeve (205), an internal thread barrel (217) being fixedly mounted on the lifting plate (203), and a threaded connection being formed between the internal thread barrel (217) and the lifting screw (213) Transmission, a top turntable (214) is fixedly mounted on the lifting screw rod (213), a rotating dial (218) is rotatably mounted on the internal threaded cylinder (217), four levers (219) are fixedly mounted on the rotating dial (218), four vertical slide bars (215) are fixedly mounted on the rotating dial (218), the vertical slide bars (215) are slidably mounted on the top turntable (214), and a vertical spring (216) is arranged between the top turntable (214) and the rotating dial (218).

6. The device for stacking and unloading core boards for plywood production according to claim 5, characterized in that: The stacking device comprises a fixed block (312) fixedly mounted on the bottom plate (101); the placing platform (301) is slidably mounted on the slide rail (102); a slow-release spring (302) is arranged between the placing platform (301) and the bottom plate (101); an outer rotating rod (307) is rotatably mounted on the placing platform (301); an inner sliding rod (308) is slidably mounted inside the outer rotating rod (307); a side rotating rod (309) is rotatably mounted on the inner sliding rod (308); the side rotating rod (309) is rotatably mounted on the placing platform (301); a front rotating rod (316) is rotatably mounted on the placing platform (301); a front inner rod (317) is slidably mounted inside the front rotating rod (316); a front limiting rod (318) is rotatably mounted on the front inner rod (317); and the front limiting rod (318) is rotatably mounted on the placing platform (301).

7. The device for stacking and unloading core boards for plywood production according to claim 6, characterized in that: A guide column (313) is rotatably mounted on the fixed block (312), a pull frame (315) is fixedly mounted on the placement table (301), a winding disk (310) is fixedly mounted on the lifting screw rod (213), a pull rope (311) is wound around the winding disk (310), an end of the pull rope (311) is fixedly mounted on the pull frame (315), the pull rope (311) is passed around the guide column (313), and the pull rope (311) is in a taut state in an initial state.

8. The device for stacking and unloading core boards for plywood production according to claim 6, characterized in that: The movable plate (201) is provided with a limiting mechanism, the limiting mechanism comprising a push block (314) fixedly mounted on the movable plate (201), a lifting block (303) slidably mounted on the side screw rod (206), a rotating rod (304) rotatably mounted on the lifting block (303), a blocking block (306) rotatably mounted on the rotating rod (304), an arc surface being provided on the blocking block (306), a fixed seat (305) fixedly mounted on the movable plate (201), the blocking block (306) and the fixed seat (305) being rotatably mounted, and in an initial state, the slow-release spring (302) is in a stretched state.

9. The device for stacking and unloading core boards for plywood production according to claim 6, characterized in that: A spring is provided between the front inner rod (317) and the front rotating rod (316), and a spring is provided between the inner sliding rod (308) and the outer rotating rod (307).

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