Plastic tray flattening production line

Abstract

The invention discloses a plastic tray flattening production line. The flattening production line comprises a feeding device, a flattening device, a shaking device, a discharging device and a controller. The feeding device is used for automatically transferring the formed plastic trays to the flattening device from the plastic tray forming production line. The flattening device is used for automatically shearing and grinding bumps and burrs on the surface of the molded plastic tray; the shaking device is used for automatically shaking off the sheared chippings retained on the plastic tray from the plastic tray; the discharging device is used for automatically discharging the plastic trays from the shaking device. By arranging the flattening production line, automatic transferring, automatic flattening and automatic discharging of the formed plastic trays are achieved, a large amount of manpower is saved, and the production efficiency and the product quality of the plastic trays are improved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic pallet manufacturing, and in particular to a plastic pallet flattening production line. Background Art

[0002] Commonly used plastic pallets include wooden plastic pallets and plastic pallets, which are used for cargo platforms. Plastic pallets are formed by plastic molding. Therefore, burrs and bumps will inevitably remain during the molding process of the plastic pallet. The presence of burrs and bumps will affect the appearance. At the same time, the bumps on the surface of the plastic pallet will make the surface of the plastic pallet uneven, thereby affecting the stability of the items placed on the plastic pallet. Therefore, after the plastic pallet is transferred from the molding production line, it is necessary to manually trim the burrs and bumps on it one by one to make its surface flat. However, due to manual trimming, it is inevitable that some burrs and bumps are incompletely trimmed, thereby affecting the product quality. At the same time, therefore, the trimming of existing plastic pallets is not only laborious and time-consuming, but also the trimming quality cannot be guaranteed. At the same time, the entire process, including the handling of the plastic pallet before and after the flattening process, is carried out by manpower, which is also time-consuming and labor-intensive. Summary of the invention

[0003] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: the leveling production line includes a loading device, a leveling device, a shaking device, a unloading device and a controller;

[0004] The feeding device is used to automatically transfer the formed plastic pallet from the plastic pallet forming production line to the flattening device;

[0005] The flattening device is used to automatically shear and flatten bumps and burrs on the surface of the molded plastic pallet;

[0006] The shaking device is used to automatically shake the shearing debris remaining on the plastic tray off the plastic tray;

[0007] The unloading device is used for automatically unloading the plastic pallet from the shaking device.

[0008] Preferably, the feeding device comprises a robot, which is arranged at a feeding station of the molding plastic production line.

[0009] Preferably, the leveling device includes a leveling frame, a conveyor belt, a first sensor, and a lifting and shearing mechanism. The conveyor belt is arranged on the leveling frame. The leveling frame is provided with a sensor for sensing the position of the plastic pallet on the leveling frame. The lifting and shearing mechanism is used to shear the protrusions on the plastic pallet when the plastic pallet is transferred to the bottom of the lifting and shearing mechanism along the conveyor belt.

[0010] Preferably, the lifting and shearing mechanism includes a cylinder frame, a lifting cylinder, a lifting support plate, and a plurality of shearing cylinders; the cylinder frame is mounted on a flat frame, the piston end of the lifting cylinder is fixed on the lifting support plate, and the other end is fixed on the cylinder frame, and a plurality of shearing cylinders are arranged at intervals on the lower bottom surface of the lifting support plate, and the shearing cylinder is a finger cylinder, and the finger cylinder is provided with parallel jaws, and the ends of the parallel jaws are provided with a pair of blades facing each other.

[0011] Preferably, the shearing cylinder is also provided with a grinding sleeve for smoothing the shearing surface of the bump after shearing.

[0012] Preferably, the shear cylinder is cylindrical, the grinding sleeve is cylindrical, and the grinding sleeve is a wire mesh grinding sleeve.

[0013] Preferably, the leveling device is also provided with a grinding block assembly, which is arranged at the exit of the leveling frame, including two vertical columns located on the opposite sides of the leveling frame and a grinding beam erected between the two vertical columns, and a grinding block is fixedly provided on the lower bottom surface of the grinding beam, and the grinding block re-grinds the surface of the plastic pallet while the plastic pallet leaves the leveling frame.

[0014] Preferably, the shaking device comprises a shaking frame, on which a plurality of transmission rolling rods and shaking rolling rods are mounted. The shaking rolling rods are driven by a driving motor, and the shaking rolling rods are provided with shaking plates along the length direction.

[0015] Preferably, the shaking plate is an angle iron, and two sides of the angle iron are connected to the shaking rolling rod.

[0016] Preferably, the shaking frame is also provided with a second sensor for sensing the position of the plastic tray when it stops moving on the shaking frame.

[0017] Preferably, the unloading device includes a unloading frame, a translation mechanism, a unloading lifting mechanism, and a grabbing mechanism; the grabbing mechanism is used to grab the plastic pallet, the grabbing mechanism is arranged on the unloading lifting mechanism, and rises and falls with the unloading lifting mechanism; the unloading lifting mechanism is located on the translation mechanism, and moves back and forth with the translation mechanism.

[0018] The present invention has the following beneficial effects:

[0019] The present invention realizes automatic transfer, automatic leveling and automatic unloading of the formed plastic pallet by setting up a leveling production line, which not only saves a lot of manpower but also improves the production efficiency and product quality of the plastic pallet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the planar structure of the present invention;

[0021] Figure 2 A schematic diagram of the structure of the leveling device and the shaking device provided by the present invention;

[0022] Figure 3 A structural schematic diagram of a feeding device is provided for the present invention;

[0023] Figure 4 A schematic diagram of a shear cylinder assembly provided by the present invention;

[0024] Figure 5 A schematic diagram of the structure of a plastic pallet provided by the present invention;

[0025] Legend: Plastic pallet forming production line 001, unloading station 0011, transfer device 01, leveling device 1, leveling frame 10, conveyor belt 11, second position sensor 12, cylinder frame 131, lifting cylinder 132, guide column 133, lifting support plate 134, air guide pipe mounting hole 1341, mounting block 1342, shear cylinder 135, blade pair 1351, grinding sleeve 1352, mounting ring 1353, vertical column 1361, horizontal beam 1362, grinding block 1363, shaking device 2, shaking frame 20, transmission rolling rod 21, shaking Moving plate 221, shaking rolling rod 22, driving motor 23, third position sensor 24, unloading device 3, unloading frame 30, translation motor 311, translation gear 312, translation rack 313, translation slide bar 314, translation slider 315, lifting motor 321, lifting gear 322, lifting rack 323, lifting sleeve 324, lifting slide bar 325, lifting beam 331, grabbing beam 332, grabbing cylinder (333; 334), grabbing plate (3331; 3341), fourth position sensor 335, plastic tray 4, protrusion 41. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] Reference Figure 1-5 , the embodiment provided by the present invention:

[0028] A plastic pallet flattening production line, the flattening production line comprises a loading device 01, a flattening device 1, a shaking device 2, a unloading device 3 and a controller;

[0029] The loading device 01 is used to automatically transfer the formed plastic pallet 4 from the plastic pallet 4 forming production line 001 to the leveling device 1;

[0030] The smoothing device 1 is used to automatically shear and smooth the bumps 41 and burrs on the surface of the molded plastic tray 4;

[0031] The shaking device 2 is used to automatically shake the shearing debris remaining on the plastic tray 4 off the plastic tray 4;

[0032] The unloading device 3 is used to automatically unload the plastic pallet 4 from the shaking device 2 .

[0033] The loading device 01 includes a robot and a first position sensor (not shown), and the loading device 01 is arranged on the unloading station 0011 of the molding plastic production line. When the first position sensor senses that there is a plastic tray 4 on the unloading station 0011 of the molding plastic production line, the robot automatically moves the plastic tray 4 to the leveling device 1.

[0034] The leveling device 1 includes a leveling frame 10, a conveyor belt 11, a second position sensor 12, and a lifting and shearing mechanism. The conveyor belt 11 is arranged on the leveling frame 10, the second position sensor 12 is arranged on the leveling frame 10 to sense the position of the plastic pallet 4 on the leveling frame 10, and the lifting and shearing mechanism is used to shear the protrusion 41 on the plastic pallet 4 when the plastic pallet 4 is transferred to the bottom of the lifting and shearing mechanism along with the conveyor belt 11.

[0035] The lifting and shearing mechanism includes a cylinder frame 131, a lifting cylinder 132, a lifting support plate 134, and a plurality of shearing cylinders 135; the cylinder frame 131 is mounted on the flat frame 10, the piston end of the lifting cylinder 132 is fixed on the lifting support plate 134, and the other end is fixed on the cylinder frame 131, and a plurality of shearing cylinders 135 are arranged at intervals on the lower bottom surface of the lifting support plate 134. Since the position of the protrusion 41 generated during the molding process of the plastic pallet 4 is fixed, the position of the shearing cylinder 135 is set to correspond to the position of the protrusion 41. In order to make the lifting support plate 134 lift smoothly, a guide column 133 is also provided. At the same time, in order to facilitate the installation of the shear cylinder 135, an air pipe mounting hole 1341 for mounting the air pipe of the shear cylinder 135 is provided on the lifting support plate 134, and a strip mounting block 1342 is provided on the lower bottom surface of the lifting support plate 134. In addition, a mounting ring 1353 is provided on the upper part of the shear cylinder 135, and the shear cylinder 135 is fixed to the mounting block 1342 of the lifting support plate 134 by the mounting ring 1353.

[0036] In order to facilitate the shearing of the bump 41, the shearing cylinder 135 is a circular finger cylinder, and the finger cylinder is provided with parallel clamping jaws, and the ends of the parallel clamping jaws are provided with blade pairs 1351 facing each other.

[0037] After the bump 41 is sheared, an uneven shear edge is sometimes left around the shear surface, and the shear edge needs to be smoothed. At the same time, in order to push the sheared bump from the upper layer of the plastic pallet downward in time, a smoothing sleeve 1352 is sleeved on the outer wall of the shear cylinder 135. The smoothing sleeve 1352 is cylindrical and is made of a wire mesh. It can smooth the shear edge well and push the sheared bump from the upper layer of the plastic pallet downward.

[0038] The leveling device 1 is also provided with a grinding block assembly, which is arranged at the exit of the leveling frame 10, including two vertical columns 1361 located on the opposite sides of the cylinder frame 131 and a grinding beam 1362 erected between the two vertical columns 1361. A grinding block 1363 is fixedly provided on the bottom surface of the grinding beam 1362. The length of the grinding block 1363 is equivalent to the length of the plastic pallet 4, and metal material is often selected. When the plastic pallet 4 leaves the leveling frame 10, the grinding block 1363 is almost attached to the surface of the plastic pallet 4, and the surface of the plastic pallet 4 is re-flattened.

[0039] The shaking device 2 includes a shaking frame 20, on which a plurality of transmission rolling rods 21 and shaking rolling rods 22 are mounted. The shaking rolling rods 22 are driven by a driving motor 23, and the shaking rolling rods 22 are provided with shaking plates 221 along the length direction.

[0040] The shaking plate 221 is an angle iron, and the two sides of the angle iron are connected to the shaking rolling rod 22. By setting the angle iron shaking plate 221, its amplitude is enhanced and the shaking effect is improved.

[0041] The shaking device 2 can shake off the shearing debris still remaining on the upper surface of the plastic tray 4 and the shearing debris falling from the upper surface to the lower surface from the plastic tray 4.

[0042] The shaking frame 20 is further provided with a third position sensor 24 for sensing the position of the plastic tray 4 when it stops moving on the shaking frame 20 .

[0043] The unloading device 3 includes an unloading frame 30, a translation mechanism, an unloading lifting mechanism, and a grabbing mechanism; the translation mechanism is slidably arranged on the unloading frame 30, the grabbing mechanism is used to grab the plastic pallet 4, the grabbing mechanism is arranged on the unloading lifting mechanism, and rises and falls with the unloading lifting mechanism; the unloading lifting mechanism is located on the translation mechanism, and moves back and forth with the translation mechanism.

[0044] The translation mechanism includes a translation motor 311, a translation gear 312, a translation rack 313, a translation slide bar 314; a translation sleeve (not shown), and a translation slider 315. The translation slider 315 is connected to the translation sleeve, the translation sleeve is fixed to one side of the translation rack 313, and the translation sleeve is sleeved on the translation slide bar 314.

[0045] The material unloading lifting mechanism includes a translation slider 315, a lifting motor 321, a lifting gear 322, a lifting rack 323, a lifting slide bar 325, a lifting sleeve 324, and a lifting beam 331;

[0046] The lifting motor 321, the lifting gear 322, the lifting rack 323, the lifting slide bar 325, and the lifting sleeve 324 are all arranged on the translation slider 315. The lifting sleeve 324 is sleeved on the lifting slide bar 325 and connected to one side of the lifting rack 323. At the same time, the lifting sleeve 324 is connected to the lifting beam 331.

[0047] The grabbing mechanism comprises a grabbing beam 332, a grabbing cylinder (333; 334), and a grabbing plate (3331; 3341). The grabbing beam 332 is arranged below the lifting beam 331 and is connected to the lifting beam 331. A grabbing cylinder (333; 334) is respectively provided on both sides of the grabbing beam 332, and a grabbing plate (3331; 3341) is provided at the piston end of each grabbing cylinder (333; 334).

[0048] In order to realize automatic stacking of the plastic trays 4 , a fourth sensor 335 is provided on the side of the grabbing beam 332 .

[0049] Working principle:

[0050] When the plastic pallet 4 arrives at the unloading station 0011 of the plastic pallet molding production line 001 after being formed, the first position sensor senses the plastic pallet 4, and the robot moves the plastic pallet 4 to the conveyor belt 11. The plastic pallet 4 moves with the conveyor belt 11. When the second position sensor 12 detects that the plastic pallet 4 has arrived at a certain position, the motor of the conveyor belt 11 is paused. At this time, the protrusion 41 on the plastic pallet 4 at this position is exactly located directly below the blade of the shear cylinder 135. Under the action of the lifting cylinder 132, the protrusion 41 on the plastic pallet 4 at this position is completely located below the blade of the shear cylinder 135. The lifting support plate 134 is lowered, and the shearing cylinder 135 shears the protrusion 41. After the shearing is completed, the lifting support plate 134 rises back to the original height under the action of the lifting cylinder 132, and the motor of the conveyor belt 11 is restarted. The plastic tray 4 continues to move with the conveyor belt 11. When passing through the grinding block 1363 at the exit, the surface of the plastic tray 4 is ground again, and the sheared debris is pushed off the surface of the plastic tray 4. A part of it will fall from the plastic tray 4 through the gap of the plastic tray 4, and another part will fall from the plastic tray 4. The upper layer of the tray 4 falls onto the lower surface. After the plastic tray 4 comes out of the conveyor belt 11, it enters the shaking frame 20. After being shaken by the shaking rolling rod 22, all the shear chips retained on the plastic tray 4 are shaken off. When the plastic tray 4 stops moving on the shaking frame 20, the position information sensed by the third position sensor 24 is fed back to the controller, and the translation motor 311 drives the translation slider 315 to reach the top of the plastic tray 4, and the lifting motor 321 drives the lifting beam 331 to descend to a suitable position. , the two grabbing cylinders (333; 334) clamp the plastic pallet 4 from both sides of the plastic pallet 4, the lifting motor 321 drives the lifting beam 331 to rise to the original height, the translation motor 311 drives the translation slider 315 to reach the position above the temporary storage area of ​​the plastic pallet 4, and through the fourth position sensor 335, the lifting motor 321 drives the lifting beam 331 to descend to a suitable height, and the two grabbing cylinders (333; 334) release the plastic pallet 4 from both sides of the plastic pallet 4, thereby completing the automatic unloading of the plastic pallet 4.

[0051] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic pallet flattening production line, characterized by: The leveling production line includes a loading device, a leveling device, a shaking device, a unloading device and a controller; The feeding device is used to automatically transfer the formed plastic pallet from the plastic pallet forming production line to the flattening device; The flattening device is used to automatically shear and flatten bumps and burrs on the surface of the molded plastic pallet; The shaking device is used to automatically shake the shearing debris remaining on the plastic tray off the plastic tray; The unloading device is used for automatically unloading the plastic pallet from the shaking device.

2. A plastic pallet flattening production line according to claim 1, characterized in that: The feeding device comprises a manipulator and a first position sensor, and the feeding device is arranged on a feeding station of a molding plastic production line.

3. A plastic pallet flattening production line according to claim 1, characterized in that: The leveling device includes a leveling frame, a conveyor belt, a second position sensor, and a lifting and shearing mechanism. The conveyor belt is arranged on the leveling frame. The second position sensor is arranged on the leveling frame and is used to sense the position of the plastic pallet on the leveling frame. The lifting and shearing mechanism is used to shear the protrusions on the plastic pallet when the plastic pallet is transferred to the bottom of the lifting and shearing mechanism along the conveyor belt.

4. A plastic pallet flattening production line according to claim 3, characterized in that: The lifting and shearing mechanism includes a cylinder frame, a lifting cylinder, a lifting support plate, and a plurality of shearing cylinders; the cylinder frame is mounted on a flat frame, the piston end of the lifting cylinder is fixed on the lifting support plate, and the other end is fixed on the cylinder frame, and a plurality of shearing cylinders are arranged at intervals on the lower bottom surface of the lifting support plate, and the shearing cylinder is a finger cylinder, and the finger cylinder is provided with parallel jaws, and the ends of the parallel jaws are provided with a pair of blades facing each other.

5. A plastic pallet flattening production line according to claim 4, characterized in that: The shearing cylinder is also sleeved with a grinding sleeve for smoothing the shearing surface of the bump after being sheared.

6. A plastic pallet flattening production line according to claim 5, characterized in that: The shearing cylinder is cylindrical, the grinding sleeve is cylindrical, and the grinding sleeve is a wire mesh grinding sleeve.

7. The plastic pallet flattening production line according to claim 3, characterized in that: The leveling device is also provided with a grinding block assembly, which is arranged at the exit of the leveling frame, including two vertical columns located on the opposite sides of the leveling frame and a grinding beam erected between the two vertical columns. A grinding block is fixedly provided on the lower bottom surface of the grinding beam. The grinding block re-grinds the surface of the plastic pallet while the plastic pallet leaves the leveling frame.

8. The plastic pallet flattening production line according to claim 1, characterized in that: The shaking device comprises a shaking frame, on which a plurality of transmission rolling rods and shaking rolling rods are mounted. The shaking rolling rods are driven by a driving motor, and the shaking rolling rods are provided with shaking plates along the length direction.

9. A plastic pallet flattening production line according to claim 8, characterized in that: The shaking plate is an angle iron, and the two sides of the angle iron are connected to the shaking rolling rod.

10. The plastic pallet flattening production line according to claim 1, characterized in that: The unloading device includes an unloading frame, a translation mechanism, an unloading lifting mechanism, and a grabbing mechanism; the grabbing mechanism is used to grab the plastic pallet, the grabbing mechanism is arranged on the unloading lifting mechanism, and rises and falls with the unloading lifting mechanism; the unloading lifting mechanism is located on the translation mechanism, and moves back and forth with the translation mechanism, and the translation mechanism is arranged on the unloading frame.

Images