PE wood-plastic profile product stacking device

Abstract

The application discloses a PE wood-plastic profile product stacking device, which comprises a conveying assembly, a butt joint assembly and a stacking assembly arranged in sequence from back to front, the butt joint assembly comprises a rack, a steering table, a rotating mechanism, a pushing mechanism and a first lifting mechanism, the first lifting mechanism is connected with the rack to drive the rack to move up and down, the rotating mechanism is installed on the rack, the steering table is rotatably installed on the rack, the pushing mechanism is arranged on the rack, the rotating mechanism is connected with the steering table to drive the steering table to rotate, the pushing mechanism comprises a first linear driving mechanism connected with the rack and a pushing plate used for pushing the profile, the first linear driving mechanism is connected with the pushing plate to drive the pushing plate to move linearly, the stacking assembly is suitable for placing profile groups and stacking the profile groups in sequence, the stacking assembly comprises a second lifting mechanism and a placing plate used for placing the profile groups, one layer of profiles can be conveyed each time, and then two layers of profiles are staggered and stacked as a group, so that the stacking efficiency and quality are improved.

Description

Technical Field

[0001] This invention relates to the field of product stacking, specifically to a stacking device for PE wood-plastic composite profiles. Background Technology

[0002] Currently, PE wood-plastic profiles have been widely used due to their unique performance advantages, such as combining the texture of wood with the water resistance and corrosion resistance of plastics, as well as their environmentally friendly properties such as recyclability. With the continuous growth of market demand for PE wood-plastic profile products, their production scale is constantly expanding. How to efficiently, safely and reasonably stack these products has become an important link that urgently needs to be solved in the production process.

[0003] A search revealed that patent CN103010758B discloses a stacking device for PE wood-plastic profiles. This device stacks the profiles one by one by pushing them onto a chain conveyor platform, which then descends continuously. However, simply stacking them layer by layer cannot form an interlaced structure, making them prone to collapse under external force. This method of stacking one by one is inefficient. In addition, some stacking devices on the market use grippers to grab and stack PE wood-plastic profiles. However, the surface of PE wood-plastic profiles is relatively soft, and the grippers are difficult to control precisely when grabbing the profiles, which can easily cause scratches, indentations, and other damage to the profile surface. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a PE wood-plastic profile stacking device that can transport one layer of profile at a time, and then stack two layers of profile as a group in an alternating manner, thereby improving stacking efficiency and quality.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: a PE wood-plastic profile product stacking device, comprising: a conveying component, a docking component, and a stacking component arranged sequentially from back to front;

[0006] The docking assembly includes a frame, a turntable, a rotating mechanism, a pushing mechanism, and a first lifting mechanism. The first lifting mechanism is connected to the frame to drive the frame to move up and down. The rotating mechanism is mounted on the frame. The turntable is rotatably mounted on the frame. The pushing mechanism is located on the frame. The rotating mechanism is connected to the turntable to drive the turntable to rotate.

[0007] The pushing mechanism includes a first linear drive mechanism connected to the frame and a push plate for pushing the profile. The first linear drive mechanism is connected to the push plate to drive the push plate to move linearly.

[0008] The stacking assembly is adapted to place profile groups and to stack profile groups sequentially; the stacking assembly includes a second lifting mechanism and a placement plate for placing profile groups, the second lifting mechanism being connected to the placement plate to drive the placement plate to move vertically; wherein...

[0009] The profile assembly includes a first layer of profiles placed vertically and a second layer of profiles placed horizontally. The second layer of profiles is located above the first layer of profiles and is stacked alternately with the first layer of profiles.

[0010] The conveying assembly is adapted to intermittently convey longitudinally arranged profiles forward so that multiple profiles are at the gripping station;

[0011] The pushing mechanism is adapted to intermittently push multiple profiles at the gripping station on the conveying assembly onto the turning table.

[0012] Furthermore, the pushing mechanism is also adapted to push a set of profiles on the turntable to the placement plate to form a first layer of profiles when the frame is in the lower position;

[0013] The rotating mechanism is adapted to drive the turntable and another set of profiles on it to rotate when the frame is in the upper position;

[0014] The pushing mechanism is also adapted to push another set of profiles, which has been rotated, to the placement plate to form a second layer of profiles when the frame is in the middle position.

[0015] Furthermore, the turntable is provided with two rows of symmetrically arranged first sliding groups, which are respectively used to support the two ends of the profile;

[0016] The first sliding assembly includes a plurality of first conveying components arranged at intervals. Each first conveying component includes a conveying base and a conveyor belt assembly. The conveying base is mounted on the turntable, and the conveyor belt assembly is installed inside the conveying base. The conveyor belt assembly is adapted to contact the profile.

[0017] Furthermore, the steering table is provided with an adjustment mechanism for adjusting the conveying direction of the conveyor belt group to be consistent with the pushing direction of the pushing mechanism. The adjustment mechanism includes a second linear drive mechanism, two racks corresponding to the first sliding group, and several gears corresponding to the conveying base.

[0018] The upper side of the gear is fixedly connected to the corresponding conveying base, and the lower side of the gear is rotatably mounted on the steering table. Adjacent gears mesh with each other. The rack is slidably mounted on the steering table. The second linear drive mechanism is mounted on the steering table and connected to the two racks to drive the two racks to move synchronously, so that the rack meshes with one of the gears in the corresponding first sliding group and drives the gear to rotate, thereby driving all the first conveying components to rotate, so that the conveying direction of the conveyor belt group is consistent with the pushing direction of the pushing mechanism after the steering table is driven to rotate.

[0019] Furthermore, a limit mechanism is provided on the frame;

[0020] The limiting mechanism includes a third lifting mechanism and a pressure plate. The third lifting mechanism is installed on the frame and is connected to the pressure plate to drive the pressure plate to move toward the profile on the turntable, thereby contacting the profile.

[0021] Furthermore, the placement plate is provided with a placement chamber that extends through itself. The placement plate is provided with a third linear drive mechanism and a dividing mechanism. The dividing mechanism is initially located at the center of the placement plate and divides the placement chamber into an upper chamber and a lower chamber. The lower chamber is suitable for placing the first layer of profile, and the upper chamber is suitable for placing the second layer of profile.

[0022] The third linear drive mechanism is mounted on the placement plate. The third linear drive mechanism is connected to the separation mechanism to drive the separation mechanism to move away from the upper chamber and the lower chamber, so that the second layer of profile in the upper chamber falls on the first layer of profile in the lower chamber to complete the staggered stacking.

[0023] Furthermore, a bracket is installed at the rear of the upper chamber, a fixed support roller is rotatably mounted on the bracket, a first limiting roller is rotatably mounted at the front of the upper chamber, and a second limiting roller is rotatably mounted on the contact surface between the push plate and the profile.

[0024] The second limiting roller is adapted to follow the push plate and push the second layer profile to slide on the separating mechanism and the fixed support roller. When the second layer profile is completely located in the upper cavity, the two ends of the second layer profile contact the first limiting roller and the second limiting roller respectively. The separating mechanism is driven to move away from the placement cavity. The second layer profile moves downward to the first layer profile under the vertical direction of the first limiting roller and the second limiting roller.

[0025] Furthermore, the separating mechanism includes a movable plate and a movable support roller. The movable plate is slidably disposed within the placement plate, and the movable support roller is rotatably mounted on the movable plate. The third linear drive mechanism is connected to the movable plate to drive the movable support roller to move linearly within the placement chamber.

[0026] Furthermore, a discharge assembly is provided on the lower chamber, the discharge assembly comprising:

[0027] Two unloading platforms are slidably mounted on the placement plate, and the unloading platforms are used to receive the two ends of the first layer profile located below the second layer profile in the longitudinal direction;

[0028] A fourth linear drive mechanism is disposed on the placement plate. This fourth linear drive mechanism is connected to the two unloading platforms to drive the two unloading platforms to move in opposite directions or towards each other, thereby opening or closing the channel through which the profile assembly moves downwards to exit the lower chamber. Wherein:

[0029] The unloading platform is rotatably equipped with a receiving roller that contacts and supports the first layer of profiles. The rotation direction of the receiving roller is consistent with the movement direction of the pushing mechanism pushing the first layer of profiles.

[0030] The unloading platform is provided with a guide section and a dropping section. When the four linear drive mechanism drives the two unloading platforms to move in opposite directions, and the profile group moves downward after losing the support of the receiving roller, the two ends of the first layer of profile in the profile group fall to the guide section first and then leave the unloading platform through the dropping section.

[0031] Furthermore, a limiting part and an inclined part are respectively provided on both sides of the receiving roller in the axial direction. The inclined part and the guide part are located on the same side, and the limiting part is located on the other side of the receiving roller.

[0032] The limiting part is adapted to limit the end face portion of one end of the first layer profile when the first layer profile is located on the receiving roller;

[0033] The inclined portion is adapted so that when the receiving roller is actuated and pulled out from the bottom of the profile assembly, the profile assembly first contacts the inclined portion and then contacts the guide portion.

[0034] By adopting the above technical solution, the present invention has the following beneficial effects:

[0035] 1. A pushing mechanism pushes several profiles into the placement plate to form the first layer of profiles. Then, the same number of profiles are pushed into the turning table. The profiles inside the turning table are rotated 90 degrees and then pushed into the placement plate, which is located above the first layer of profiles, and finally forms the second layer of profiles. When the profiles are transported in the turning table, they are transported by a conveyor belt assembly, which protects the surface of the profiles. When turning is required, the conveyor belt assembly can also adaptively adjust to ensure that the rotation direction of the conveyor belt assembly is consistent with the transport direction, reduce the friction between the conveyor belt assembly and the profiles, and ensure the surface quality of the wood-plastic profiles.

[0036] 2. When conveying the second layer of profiles, the second layer of profiles is first placed on the separating mechanism. The second layer of profiles does not come into contact with the first layer of profiles during the process of entering the placement plate, thus avoiding excessive friction between the two layers of profiles. After the second layer of profiles has completely entered the placement plate, the separating mechanism is pulled out, so that the second layer of profiles falls on the first layer of profiles to complete the staggered stacking and form a profile group. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0038] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0039] Figure 3 This is a schematic diagram of the pushing mechanism structure of the present invention. Figure 1 ;

[0040] Figure 4 This is a schematic diagram of the pushing mechanism structure of the present invention. Figure 2 ;

[0041] Figure 5 This is a schematic diagram of the internal structure of the steering platform of the present invention;

[0042] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0043] Figure 7 This is a plan view of the placement plate of the present invention;

[0044] Figure 8 This is a schematic diagram of the three-dimensional overall structure of the placement plate of the present invention;

[0045] Figure 9 For the present invention Figure 8 Enlarged view at point B in the middle;

[0046] In the diagram: 1. Conveying assembly; 11. Conveying platform; 12. Conveying mechanism; 13. Counting sensor;

[0047] 2. Docking assembly; 21. Frame; 22. Turning platform; 23. Rotating mechanism; 24. First lifting mechanism; 25. Conveying base; 26. Conveyor belt assembly; 27. Third lifting mechanism; 28. Pressure plate;

[0048] 3. Stacking assembly; 31. Placement plate; 32. Second lifting mechanism; 33. Lifting seat; 34. Second motor; 35. Second threaded rod; 36. Separating mechanism; 37. Upper chamber; 38. Lower chamber; 39. Bracket; 310. Fixed support roller; 311. First limiting roller; 312. Second limiting roller; 314. Moving plate; 315. Moving support roller; 316. Fourth motor; 317. Third threaded rod;

[0049] 4. Pushing mechanism; 41. Push plate; 42. First motor; 43. Transmission sleeve; 44. First threaded rod; 45. Telescopic spring; 46. Second electric cylinder; 47. Limiting groove; 48. Sliding component; 49. Sliding rod;

[0050] 5. Adjustment mechanism; 51. Rack; 52. Gear; 53. First double-acting screw; 54. Third motor; 55. Synchronous belt;

[0051] 6. Unloading platform; 64. Drop section; 65. Receiving roller; 66. Guide roller; 611. First limiting plate; 612. Second limiting plate; 615. Fifth motor; 616. Second bidirectional screw; 617. Connecting plate; 618. Guide section; 619. Limiting section; 620. Inclined section. Detailed Implementation

[0052] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0053] Example 1: As Figure 1 , 2 As shown, a PE wood-plastic profile stacking device includes: a conveying component 1, a docking component 2, and a stacking component 3 arranged sequentially from back to front;

[0054] The docking assembly 2 includes a frame 21, a turntable 22, a rotating mechanism 23, a pushing mechanism 4, and a first lifting mechanism 24. The first lifting mechanism 24 is connected to the frame 21 to drive the frame 21 to move up and down. The rotating mechanism 23 is mounted on the frame 21. The turntable 22 is rotatably mounted on the frame 21. The pushing mechanism 4 is set on the frame 21. The rotating mechanism 23 is connected to the turntable 22 to drive the turntable 22 to rotate.

[0055] The pushing mechanism 4 includes a first linear drive mechanism connected to the frame 21 and a push plate 41 for pushing the profile. The first linear drive mechanism is connected to the push plate 41 to drive the push plate 41 to move linearly.

[0056] The stacking assembly 3 is suitable for placing profile groups and stacking profile groups sequentially; the stacking assembly 3 includes a second lifting mechanism 32 and a placement plate 31 for placing profile groups, the second lifting mechanism 32 being connected to the placement plate 31 to drive the placement plate 31 to move vertically; wherein...

[0057] The profile assembly includes a first layer of profiles placed vertically and a second layer of profiles placed horizontally. The second layer of profiles is located above the first layer of profiles and is stacked alternately with the first layer of profiles.

[0058] The conveying assembly 1 is adapted to intermittently convey longitudinally arranged profiles forward so that multiple profiles are at the gripping station;

[0059] The pushing mechanism 4 is adapted to intermittently push multiple profiles at the gripping station on the conveying component 1 onto the turntable 22;

[0060] The pushing mechanism 4 is also adapted to push a set of profiles on the turntable 22 to the placement plate 31 to form the first layer of profiles when the frame 21 is in the lower position;

[0061] The rotating mechanism 23 is adapted to drive the turntable 22 and another set of profiles on it to rotate when the frame 21 is in the upper position;

[0062] The pushing mechanism 4 is also adapted to push another set of profiles that has been rotated to the placement plate 31 to form a second layer of profiles when the frame 21 is in the middle position.

[0063] In this embodiment, the conveying component 1 conveys the longitudinally placed profiles to a position close to the docking component 2. Then, the pushing mechanism 4 pushes a specified number of profiles into the turning table 22 and then onto the placement plate 31. At this point, the specified number of longitudinally placed profiles form the first layer of profiles on the placement plate 31. The conveying component 1 continues to convey the longitudinally placed profiles, and the pushing mechanism pushes the same number of profiles into the turning table 22. At this point, the entire frame 21 moves upward through the first lifting mechanism 24 to a height exceeding that of the conveying component 1 and the placement plate 31, i.e., the upper position. Then, the rotating mechanism 23 drives the turning table. 22 rotates, thereby causing the profiles on the turntable 22 to rotate 90 degrees, changing from the original longitudinal placement to the lateral placement. In this embodiment, it is a clockwise rotation. Then, the entire frame 21 moves downward through the first lifting mechanism 24 to a height higher than the initial position by one profile cross-section, i.e., the middle position. The pushing mechanism 4 pushes the rotated profiles to the placement plate 31 to form the second layer of profiles. Then, the second lifting mechanism 32 drives the placement plate 31 to move vertically to stack the profile group composed of the first layer of profiles and the second layer of profiles on the tray. Repeating the above actions can achieve multi-layer profile staggered stacking.

[0064] like Figure 1As shown, the conveying assembly 1 includes a conveying platform 11 and a conveying mechanism 12. The conveying mechanism 12 is installed inside the conveying platform 11 and is adapted to transport profiles. A counting sensor 13 is provided on the conveying platform 11 and is adapted to control the number of profiles passing through the counting sensor 13 on the conveying mechanism 12.

[0065] Of course, in this embodiment, the PE wood-plastic profile stacking device also includes a controller, which controls the operation of each component; the counting sensor 13 can also be connected to the controller.

[0066] The counting sensor 13 can be a through-beam or reflective photoelectric sensor, and the conveying mechanism 12 can be a belt conveyor or a roller conveyor, etc. Roller conveyors are preferred to reduce friction with the profile. The specific structure and working principle of the photoelectric sensor and the conveying mechanism 12 are existing technologies and will not be described in detail here.

[0067] It should be noted that the profiles on the conveying mechanism 12 should be placed longitudinally. When pushed onto the placement plate 31, they are the first layer of profiles placed longitudinally. The second layer of profiles is turned 90 degrees by the turntable 22 and placed laterally, and stacked on top of the first layer of profiles to form an interlaced stack.

[0068] The conveying mechanism 12 conveys the profiles that are placed longitudinally after cutting. There are gaps between the profiles. Driven by the conveying mechanism 12, they pass through the counting sensor 13 in sequence. When the number of profiles passing through is the specified number, a signal is fed back to the controller. The controller controls the conveying mechanism 12 to stop working and starts the pushing mechanism 4 to push the passing profiles onto the turntable 22. The controller is a PLC, and this part is controlled by the PLC.

[0069] like Figure 2 As shown, the first lifting mechanism 24 includes a first electric cylinder, the extension end of which is connected to the frame 21 to drive the frame 21 to move linearly in the vertical direction.

[0070] like Figure 3-4 As shown, the first linear drive mechanism includes a first motor 42, a first lead screw and nut pair, and a transmission sleeve 43. The first motor 42 is mounted on the frame 21. The first lead screw and nut pair includes a first threaded rod 44 and a first nut that are connected in a mating manner. The first threaded rod 44 is rotatably mounted on the frame 21. The transmission sleeve 43 is assembled on the first nut. A sliding member 48 is provided on the push plate 41. The sliding member 48 is vertically slidably mounted on the transmission sleeve 43. The output end of the first motor 42 is connected to the first threaded rod 44 to drive the transmission sleeve 43 to move along the axial direction of the first threaded rod 44, thereby driving the push plate 41 to move.

[0071] A sliding rod 49 is provided on the sliding member 48, and a telescopic spring 45 is sleeved on the sliding rod 49. The two ends of the telescopic spring 45 are respectively connected to the sliding member 48 and the transmission sleeve 43. A second electric cylinder 46 is provided on the frame 21. The telescopic end of the second electric cylinder 46 is suitable for pressing the top surface of the sliding member 48. A limiting groove 47 that matches the top surface of the sliding member 48 is provided in the frame 21. An inclined surface is provided on the bottom surface of the push plate 41.

[0072] When the profile needs to be pushed into the turntable 22 or the placement plate 31 by the push plate 41, the second electric cylinder 46 is first activated. The telescopic end of the second electric cylinder 46 pushes the sliding member 48 downward until the top surface of the sliding member 48 is aligned with the limiting groove 47. During this process, the sliding member 48 and the sliding rod 49 are pushed downward. While the sliding rod 49 passes through the transmission sleeve 43, the sliding member 48 compresses the telescopic spring 45. Then, the first motor 42 is activated to drive the first threaded rod 44 to rotate, which in turn drives the push plate 41 to move linearly and push the profile. During the movement of the push plate 41... In the middle, the sliding member 48 connected to it enters the limiting groove 47. In the limiting groove 47, the top surface of the sliding member 48 abuts against the inner wall of the limiting groove 47. Under the restriction of the limiting groove 47, the sliding member 48 cannot be reset in the vertical direction by the telescopic spring 45. After the pushing work is completed, when the push plate 41 is reset in the horizontal position under the drive of the first threaded rod 44, the sliding member 48 leaves the limiting groove 47. Then the second electric cylinder 46 retracts the telescopic end. After the sliding member 48 loses the restriction of the limiting groove 47 and the telescopic end of the second electric cylinder 46, it automatically resets in the vertical direction by the telescopic spring 45.

[0073] The function of the second electric cylinder 46 is to drive the sliding member 48 to move, thereby driving the push plate 41 to move in the vertical direction, avoiding the profile being transported on the conveying mechanism 12 before the pushing work begins. When the pushing begins, the push plate 41 is driven to move downward and push the profile. The function of the inclined surface is to separate the two profiles when the distance between two adjacent profiles is too small.

[0074] It should be noted that the specific structure and working principle of the electric cylinder are existing technologies and will not be described in detail here. Depending on actual production needs, the electric cylinder can be replaced with linear drive components such as pneumatic cylinders.

[0075] like Figure 2 As shown, the rotating mechanism 23 includes a control motor, which is mounted on the frame 21. The output end of the control motor is connected to the turntable 22 to drive the turntable 22 to rotate.

[0076] The rotating mechanism 23 may also include a gearbox, which is connected to the steering table 22 and the output shaft of the control motor respectively. The rotation speed of the steering table 22 is controlled by the gear ratio between the gears in the gearbox, so as to avoid excessive speed causing the profile placed inside the steering table 22 to be affected during rotation. The gearbox is not shown in the figure. The gearbox and the way the gearbox is connected to the steering table and the transmission shaft of the control motor are existing technologies. Their specific structure and working principle will not be described in detail here.

[0077] like Figure 1 As shown, the second lifting mechanism 32 includes a lifting seat 33, a second motor 34, and a second lead screw and nut assembly. The second motor 34 is mounted on the lifting seat 33. The second lead screw and nut assembly includes a second threaded rod 35 and a second nut that are connected in a mating manner. The second threaded rod 35 is rotatably mounted on the lifting seat 33. The placement plate 31 is assembled on the second nut. The output end of the second motor 34 is connected to the second threaded rod 35 to drive the placement plate 31 to move linearly along the axial direction of the second threaded rod 35.

[0078] To ensure the continuity of profile stacking, the placement plate 31 is designed to be height-adjustable. When the placement plate 31 needs to be raised or lowered, the second motor 34 is started to drive the second threaded rod 35 to rotate, thereby driving the lifting plate to move linearly.

[0079] like Figure 5 As shown, the turntable 22 is provided with two rows of symmetrically arranged first sliding groups, which are used to support the two ends of the profile respectively.

[0080] The first sliding group includes several first conveying components arranged at intervals. The first conveying components include a conveying base 25 and a conveyor belt group 26. The conveying base 25 is mounted on a turntable 22, and the conveyor belt group 26 is installed inside the conveying base 25. The conveyor belt group 26 is adapted to contact the profile.

[0081] In this embodiment, the conveyor belt assembly 26 includes a conveyor belt and two conveyor belt pulleys rotatably connected to the conveyor base 25, with the conveyor belt connected to the two conveyor belt pulleys.

[0082] When the longitudinally placed profile is pushed onto the turntable 22 on the conveying mechanism 12, the two oppositely arranged first conveying components are located below the two ends of the longitudinally placed profile, which play the role of supporting and rotating the conveying.

[0083] The outer surface of the conveyor belt of the conveyor belt assembly 26 is made of a polymer material, preferably polyurethane. This allows the profile to be transported normally without scratching its surface, and the static friction generated during contact with the profile reduces the lateral displacement of the profile on the conveyor belt assembly 26.

[0084] like Figure 5-6As shown, the turntable 22 is provided with an adjustment mechanism 5 for adjusting the conveying direction of the conveyor belt group 26 so that it is consistent with the pushing direction of the pushing mechanism 4. The adjustment mechanism 5 includes a second linear drive mechanism, two racks 51 corresponding to the first sliding group and several gears 52 corresponding to the conveying base 25.

[0085] The upper side of gear 52 is fixedly connected to the corresponding conveying base 25, and the lower side of gear 52 is rotatably mounted on the turntable 22. Adjacent gears 52 mesh with each other. Rack 51 is slidably mounted on the turntable 22. The second linear drive mechanism is mounted on the turntable 22 and is connected to the two racks 51 to drive the two racks 51 to move synchronously, so that rack 51 meshes with one of the gears 52 in the corresponding first sliding group and drives the gear 52 to rotate, thereby driving all the first conveying components to rotate, so that the conveying direction of the conveyor belt group 26 is consistent with the pushing direction of the pushing mechanism 4 after the turntable 22 is driven to rotate.

[0086] When the rotating mechanism 23 drives the turntable 22 to rotate, the profile on the turntable 22 changes from being placed longitudinally to being placed laterally. Since the first conveying component rotates with the turntable 22 as a whole but does not rotate on its own, the conveying direction of the conveyor belt group 26 is inconsistent with the pushing direction of the pushing mechanism 4. At this time, it is necessary to start the adjusting mechanism 5 to drive all the first conveying components to rotate on their own to maintain the movement direction of the conveyor belt group 26 and the pushing mechanism 4 in the same direction, so that the profile can enter the placement plate 31 well through the conveyor belt group 26.

[0087] like Figure 6 As shown, the second linear drive mechanism includes a first bidirectional screw 53, a third motor 54, and a synchronous belt 55. The first bidirectional screw 53 is rotatably mounted on the steering table 22, the third motor 54 is mounted on the steering table 22, and the synchronous belt 55 is sleeved on the output shafts of the first bidirectional screw 53 and the third motor 54 through a synchronous pulley. The first bidirectional screw 53 includes two oppositely arranged threads, and two racks 51 are respectively assembled on the two oppositely arranged threads.

[0088] When the first conveying component needs to rotate, the output shaft of the third motor 54 is started to rotate forward, and the first bidirectional screw 53 is driven to rotate through the synchronous belt 55. The first bidirectional screw 53 rotates forward, causing the two racks 51 to move in opposite directions and mesh with the corresponding gears 52 respectively, so that the gears 52 rotate 90 degrees. At the same time, the remaining gears 52 also rotate 90 degrees in the meshing connection between each other, so that the conveying direction of all the conveyor belt groups 26 is consistent with the pushing direction of the pushing mechanism 4. By controlling the output shaft of the third motor 54 to reverse, the gears 52, racks 51 and the first conveying component can be reset.

[0089] It should be noted that adjacent gears 52 mesh with each other, so the rotation directions between two adjacent first conveying components are different, which avoids all the first conveying components rotating in the same direction, causing the profiles on them to be driven to shift.

[0090] like Figure 3 As shown, a limit mechanism is provided on the frame 21;

[0091] The limiting mechanism includes a third lifting mechanism 27 and a pressure plate 28. The third lifting mechanism 27 is mounted on the frame 21 and is connected to the pressure plate 28 to drive the pressure plate 28 to move toward the profile on the turntable 22 and then contact the profile.

[0092] A flexible material layer may be provided on the contact surface between the pressure plate 28 and the profile.

[0093] like Figure 3 As shown, the third lifting mechanism 27 includes a third electric cylinder, which is mounted on the frame 21. The telescopic end of the third electric cylinder is connected to the pressure plate 28. The third electric cylinder drives the pressure plate 28 to move towards the profile on the first conveying assembly and applies pressure to the profile through the flexible material layer to avoid excessive positional displacement of the profile when the turntable 22 rotates, the first conveying assembly rotates, or the pushing mechanism 4 pushes. The pressure plate 28 plays a limiting role rather than firmly pressing the profile onto the first conveying assembly.

[0094] The flexible material layer can be polyurethane foam, rubber sheet, silicone pad or felt, etc., with polyurethane foam being preferred, as long as it can increase friction while preventing damage to the profile surface.

[0095] The working principle of this embodiment is as follows:

[0096] The cut, longitudinally placed profiles are conveyed by the conveying component 1 to a position close to the turntable 22. When the counting sensor 13 detects that a specified number of profiles have passed, the conveying component 1 stops working and first starts the pushing mechanism 4 to push the profiles into the turntable 22, and then pushes them into the placement plate 31 to form a first layer of profiles.

[0097] After the conveying component 1 continues to convey the same number of profiles, it stops. The pushing mechanism 4 pushes the profiles onto the turntable 22 and pauses them temporarily inside the turntable 22. The first lifting mechanism 24 is activated to move the docking component 2 to the upper position to avoid rotational interference. Then, the rotating mechanism 23 is activated to rotate the turntable 22 so that the profiles inside are placed horizontally. After the rotation is completed, the first lifting mechanism 24 moves the frame 21 to the middle position. Finally, the pushing mechanism pushes the horizontally placed profiles to the placement plate 31, which is above the first layer of profiles, forming a second layer of profiles. After the two sets of profiles are stacked, they form a complete profile group.

[0098] After a profile assembly is completed, the turntable 22 is reset to continue the conveying of the next longitudinally placed profile. This process is repeated continuously. In conjunction with the second lifting mechanism 32, the placement plate 31 is continuously lowered to obtain multiple profile assemblies.

[0099] By repeatedly moving the placement plate 31 through the second lifting mechanism 32, multiple profile groups are placed sequentially on the pallet and stacked layer by layer, thereby completing the stacking and palletizing work.

[0100] Example 2: Figure 7-8 As shown, this embodiment further includes the following structure based on embodiment one: a placement chamber penetrating itself is provided on the placement plate 31, a third linear drive mechanism and a dividing mechanism 36 are provided on the placement plate 31, the initial position of the dividing mechanism 36 is located at the center of the placement plate 31 and divides the placement chamber into an upper chamber 37 and a lower chamber 38, the lower chamber 38 is suitable for placing the first layer of profile, and the upper chamber 37 is suitable for placing the second layer of profile;

[0101] The third linear drive mechanism is installed on the placement plate 31. The third linear drive mechanism is connected to the separation mechanism 36 to drive the separation mechanism 36 to move and leave the space between the upper chamber 37 and the lower chamber 38, so that the second layer of profile in the upper chamber 37 falls on the first layer of profile in the lower chamber 38 to complete the staggered stacking.

[0102] A bracket 39 is installed at the rear of the upper chamber 37. A fixed support roller 310 is rotatably mounted on the bracket 39. A first limiting roller 311 is rotatably mounted at the front of the upper chamber 37. A second limiting roller 312 is rotatably mounted on the contact surface between the push plate 41 and the profile.

[0103] The second limiting roller 312 is adapted to follow the push plate 41 and push the second layer profile to slide on the separating mechanism 36 and the fixed support roller 310. When the second layer profile is completely located in the upper chamber 37, the two ends of the second layer profile contact the first limiting roller 311 and the second limiting roller 312 respectively. The separating mechanism 36 is driven to move away from the placement chamber. The second layer profile moves downward to the first layer profile under the vertical direction of the first limiting roller 311 and the second limiting roller 312.

[0104] In this embodiment, the pusher plate 41 pushes the second layer profile into the upper chamber 37. During the movement, the separating mechanism 36 and the fixed support roller 310 provide support from below, and the bracket 39 on both sides provides a limiting function to reduce the offset of the profile during the process of entering the upper chamber 37. When the second layer profile is fully inside the upper chamber 37, the second layer profile is limited between the first limiting roller 311 and the second limiting roller 312. The second limiting roller 312 is aligned with the fixed support roller 310 in the vertical direction. At this time, the fixed support roller 310 does not provide support for the profile, while the first limiting roller 311 and the second limiting roller 312 limit the profile. They are in contact with the profile but do not clamp it. Then, the third drive mechanism is activated to drive the separating mechanism 36 to move toward the first limiting roller 311. When the separating mechanism 36 moves to be aligned with the first limiting roller 311 in the vertical direction, the separating mechanism 36 loses its support function for the profile. The profile loses all support at this time and slides down to the top of the first layer profile under the influence of gravity.

[0105] It should be noted that the outer surfaces of the first limiting roller 311 and the second limiting roller 312 are made of low-friction materials such as ultra-high molecular weight polyethylene to ensure that when the profile is supported from below, the friction between the first limiting roller 311 and the second limiting roller 312 and the profile can achieve the positioning effect, and when the bottom of the profile loses support, the profile can slide down normally under the influence of gravity.

[0106] In this embodiment, the controller can activate the third linear drive mechanism to drive the separating mechanism 36 and the push plate 41 to move linearly at the same speed.

[0107] To avoid the following phenomenon: when the profile is located between the first limiting roller 311 and the second limiting roller 312, as the separating mechanism 36 continuously moves towards the first limiting roller 311, the end of the profile closer to the second limiting roller 312 tilts downward with the separating mechanism 36 as the fulcrum, while the end closer to the first limiting roller 311 tilts upward, thus getting stuck between the first limiting roller 311 and the second limiting roller 312, when the second layer of profile is pushed to the front end and contacts the separating mechanism 36, the controller can simultaneously start the third linear... The drive mechanism drives the separating mechanism 36 to move at the same speed as the push plate 41. When the profile is pushed into place, the second limiting roller 312 is vertically aligned with the fixed support roller 310, and loses support for the profile. The separating mechanism 36 is vertically aligned with the first limiting roller 311, and loses support for the profile. That is, when the second layer of profile in the upper chamber 37 moves directly above the first layer of profile in the lower chamber 38, the bottom loses all support and falls onto the first layer of profile in the lower chamber 38, completing the stacking.

[0108] like Figure 8As shown, the separating mechanism 36 includes a movable plate 314 and a movable support roller 315. The movable plate 314 is slidably disposed in the placement plate 31, and the movable support roller 315 is rotatably mounted on the movable plate 314. A third linear drive mechanism is connected to the movable plate 314 to drive the movable support roller 315 to move linearly in the placement chamber.

[0109] The third linear drive mechanism drives the moving plate 314 to move, which in turn drives the moving support roller 315 to move. When the moving support roller 315 is below the profile, it contacts the profile and plays a supporting role. When it moves to be vertically aligned with the first limit roller 311, it loses its supporting role on the profile, causing the second layer of profile to fall to the stacking area. The moving support roller 315 does not contact the first layer of profile, so as to avoid the moving support roller 315 affecting the first layer of profile during the movement.

[0110] like Figure 8 As shown, the third linear drive mechanism includes a fourth motor 316 and a third lead screw and nut assembly. The fourth motor 316 is mounted on the placement plate 31. The third lead screw and nut assembly includes a third threaded rod 317 and a third nut that are connected in a mating manner. The third threaded rod 317 is rotatably mounted on the placement plate 31. The third nut is connected to the moving plate 314. The output end of the fourth motor 316 is connected to the third threaded rod 317 to drive the moving plate 314 to move along the axial direction of the third threaded rod 317, thereby driving the moving support roller 315 to move.

[0111] When it is necessary to control the movement of the movable support roller 315 to connect the upper chamber 37 and the lower chamber 38, the fourth motor 316 is started to drive the third threaded rod 317 to rotate, thereby driving the movable support roller 315 to move.

[0112] The working principle of this embodiment is as follows:

[0113] After the first layer of profile is in the placement plate 31, the second layer of profile, which is now placed laterally, is pushed into the placement plate 31 by the pushing mechanism 4. During the pushing process, the second layer of profile does not contact the first layer of profile. When less than half of the second layer of profile has entered the placement plate 31, the fixed support roller 310 provides support from below. At the same time, the brackets 39 on both sides of the fixed support roller 310 can restrict the two sides of the profile. The fixed support roller 310 and the movable support roller 315 can also restrict the left and right displacement of the profile through their own rotation direction and the friction between them and the profile.

[0114] Push plate 41 continuously pushes the profile. When half of the second layer profile enters the placement plate 31, the front end of the second layer profile contacts the movable support roller 315, which provides support from below. Simultaneously, the third linear drive mechanism is activated, driving the movable support roller 315 to move towards the first limit roller 311. At this time, under the control of the controller, the movable support roller 315 and push plate 41 can move synchronously, at the same speed, and in the same direction. When the second layer profile is completely inside the placement plate 31, the second limit roller 311 on push plate 41... Position roller 312 is vertically aligned with fixed support roller 310, and movable support roller 315 is vertically aligned with first limiting roller 311. That is, movable support roller 315 and fixed support roller 310 simultaneously release the support of the second layer profile. At this time, the second layer profile moves downward. During the movement, it is limited by the distance between the first limiting roller 311 and the second limiting roller 312, as well as between movable support roller 315 and fixed support roller 310, so it will not produce too much deviation. Finally, it falls on the first layer profile, completing the stacking of two staggered profiles.

[0115] Example 3: Figure 8-9 As shown, this embodiment further includes the following structure based on embodiment one: a discharge assembly is provided on the lower chamber 38, and the discharge assembly includes:

[0116] Two unloading platforms 6 are slidably mounted on the placement plate 31. The unloading platforms 6 are used to receive the two ends of the first layer profile located below the second layer profile in the longitudinal direction.

[0117] A fourth linear drive mechanism is mounted on the placement plate 31. This fourth linear drive mechanism is connected to the two unloading platforms 6 to drive the two unloading platforms 6 to move in opposite directions or towards each other, thereby opening or closing the channel through which the profile assembly moves downward to leave the lower chamber 38.

[0118] The unloading platform 6 is rotatably equipped with a receiving roller 65 that contacts and supports the first layer of profile. The rotation direction of the receiving roller 65 is consistent with the movement direction of the pushing mechanism 4 pushing the first layer of profile.

[0119] The unloading platform 6 is provided with a guide part 618 and a falling part 64. When the fourth linear drive mechanism drives the two unloading platforms 6 to move in opposite directions, and the profile group moves downward after losing the support of the receiving roller 65, the two ends of the first layer of profile in the profile group fall to the guide part 618 first and then leave the unloading platform 6 through the falling part 64.

[0120] Specifically, the guide section 618 is inclined;

[0121] The receiving roller 65 is covered with a polymer material, preferably polyurethane, which allows the profile to be transported normally without scratching the profile surface. The static friction generated in contact with the profile can reduce the profile from shifting during the transport process.

[0122] In this embodiment, when the pusher plate 41 pushes the first layer profile into the lower chamber 38, the receiving roller 65 supports the first layer profile from below. The receiving roller 65 and the conveyor belt assembly 26 are made of the same material. When the first layer profile is pushed, it contacts the receiving roller 65, causing the receiving roller 65 to rotate. The rotation direction of the receiving roller 65 is the same as the movement direction of the pusher plate 41, so that the first layer profile can smoothly enter the lower chamber 38. After the first layer profile and the second layer profile are stacked, both layers of profile are supported by the receiving roller 65.

[0123] When it is necessary to unload the profile group supported by the receiving roller 65 in the placement plate 31, the fourth linear drive mechanism is activated to drive the two unloading platforms 6 to move in opposite directions, so that the profile group loses the support of the receiving roller 65. During this process, the first layer of profile in the profile group falls on the inclined guide part 618 after losing support. With the continuous movement of the unloading platform 6, the first layer of profile on the guide part 618 can pass through the falling part 64 more smoothly. Finally, the profile group leaves the unloading platform 6 and falls on the pallet or the profiles that have been unloaded and stacked before to complete the stacking.

[0124] like Figure 9 As shown, a limiting part 619 and an inclined part 620 are respectively provided on both sides of the receiving roller 65 in the axial direction. The inclined part 620 and the guide part 618 are located on the same side, and the limiting part 619 is located on the other side of the receiving roller 65.

[0125] The limiting part 619 is adapted to limit the end face portion of one end of the first layer profile when the first layer profile is located on the receiving roller 65;

[0126] The inclined portion 620 is adapted to contact the profile assembly first and then the guide portion 618 when the receiving roller 65 is actuated and pulled out from the bottom of the profile assembly.

[0127] In this embodiment, when the two unloading platforms 6 are moved in opposite directions, the receiving roller 65 is gradually pulled out from below the profile group to the outside of the profile group, so that the profile group loses the support of the receiving roller 65. During this process, the two ends of the first layer of profile in the profile group first contact the inclined part 620, and then fall onto the guide part 618, so that the profile group slides down more stably and avoids large vibrations or positional deviations during movement.

[0128] like Figure 9 As shown, a guide roller 66 is rotatably provided on the falling part 64. The guide rollers 66 on the two falling parts 64 cooperate with each other to limit the two ends of the profile group when the profile group passes through the falling part 64.

[0129] like Figure 1 , Figure 8As shown, the unloading platform 6 is provided with a first limiting plate 611 for limiting the front end position of the profile group, and the turning platform 22 is provided with a second limiting plate 612 for limiting the rear end position of the profile group.

[0130] In this embodiment, when the first layer profile is pushed onto the unloading platform 6, the front end of the first layer profile abuts against the first limiting plate 611 to restrict the position of the front end of the first layer profile. When the second layer profile falls onto the first layer profile to form a complete profile assembly, the first limiting plate 611 also limits the front end of the second layer profile. When the turntable 22 is driven to rotate and transport the second layer profile, the second limiting plate 612 follows the turntable 22 to rotate to the rear end position of the first layer profile to limit the rear end of the first layer profile. When the second layer profile falls onto the first layer profile to form a complete profile assembly, the second limiting plate 612 also limits the rear end of the second layer profile.

[0131] like Figure 8-9 As shown, the fourth linear drive mechanism includes a fifth motor 615, a second bidirectional screw 616, and two connecting plates 617 corresponding to the unloading platform 6. The second bidirectional screw 616 is rotatably mounted on the placement plate 31, and the fifth motor 615 is mounted on the placement plate 31. The second bidirectional screw 616 includes two oppositely arranged threads, and the two connecting plates 617 are respectively assembled on the two threads. The two connecting plates 617 are respectively connected to the two unloading platforms 6. The output end of the fifth motor 615 is connected to the second bidirectional screw 616 to drive the two connecting plates 617 to move towards or away from each other, thereby driving the two unloading platforms 6 to move towards or away from each other.

[0132] When the two unloading platforms 6 need to move in opposite directions, start the fifth motor 615 to rotate the output shaft forward, which will drive the two connecting plates 617 to move in opposite directions. After unloading is completed, the output shaft of the fifth motor 615 will rotate in reverse to reset the two connecting plates 617.

[0133] The working principle of this embodiment is as follows:

[0134] After the two layers of profiles are stacked alternately to form a profile assembly, the second lifting mechanism 32 is activated to move the placement plate 31 downwards to a position close to the pallet or the already stacked profile assembly. Then, the fourth linear drive mechanism is activated to move the two unloading platforms 6 in opposite directions until they are fully open. The profile assembly contacts the inclined part 620 and the guide part 618 in sequence, and finally falls onto the pallet or the already stacked profile assembly on the pallet through the falling part 64, thus completing the stacking.

[0135] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stacking device for PE wood-plastic composite profiles, characterized in that... This includes: a conveying component, a docking component, and a stacking component arranged sequentially from back to front; The docking assembly includes a frame, a turntable, a rotating mechanism, a pushing mechanism, and a first lifting mechanism. The first lifting mechanism is connected to the frame to drive the frame to move up and down. The rotating mechanism is mounted on the frame. The turntable is rotatably mounted on the frame. The pushing mechanism is located on the frame. The rotating mechanism is connected to the turntable to drive the turntable to rotate. The pushing mechanism includes a first linear drive mechanism connected to the frame and a push plate for pushing the profile. The first linear drive mechanism is connected to the push plate to drive the push plate to move linearly. The stacking assembly is adapted to place profile groups and to stack profile groups sequentially; the stacking assembly includes a second lifting mechanism and a placement plate for placing profile groups, the second lifting mechanism being connected to the placement plate to drive the placement plate to move vertically; wherein... The profile assembly includes a first layer of profiles placed vertically and a second layer of profiles placed horizontally. The second layer of profiles is located above the first layer of profiles and is stacked alternately with the first layer of profiles. The conveying assembly is adapted to intermittently convey longitudinally arranged profiles forward so that multiple profiles are at the gripping station; The pushing mechanism is adapted to intermittently push multiple profiles at the gripping station on the conveying assembly onto the turntable; The pushing mechanism is also adapted to push a set of profiles on the turntable to the placement plate to form a first layer of profiles when the frame is in the lower position. The rotating mechanism is adapted to drive the turntable and another set of profiles on it to rotate when the frame is in the upper position; The pushing mechanism is also adapted to push another set of profiles, which has been rotated, to the placement plate to form a second layer of profiles when the frame is in the middle position; The placement plate is provided with a placement chamber that extends through itself. The placement plate is provided with a third linear drive mechanism and a dividing mechanism. The dividing mechanism is initially located at the center of the placement plate and divides the placement chamber into an upper chamber and a lower chamber. The lower chamber is suitable for placing the first layer of profiles, and the upper chamber is suitable for placing the second layer of profiles. The third linear drive mechanism is mounted on the placement plate. The third linear drive mechanism is connected to the separation mechanism to drive the separation mechanism to move and leave the space between the upper chamber and the lower chamber, so that the second layer of profile in the upper chamber falls on the first layer of profile in the lower chamber to complete the staggered stacking. A bracket is installed at the rear of the upper chamber, and a fixed support roller is rotatably mounted on the bracket. A first limiting roller is rotatably mounted at the front of the upper chamber, and a second limiting roller is rotatably mounted on the contact surface between the push plate and the profile. The second limiting roller is adapted to follow the push plate and push the second layer profile to slide on the separating mechanism and the fixed support roller. When the second layer profile is completely located in the upper cavity, the two ends of the second layer profile contact the first limiting roller and the second limiting roller respectively. The separating mechanism is driven to move away from the placement cavity. The second layer profile moves downward to the first layer profile under the vertical direction of the first limiting roller and the second limiting roller.

2. The PE wood-plastic composite profile stacking device according to claim 1, characterized in that: The turntable is provided with two rows of symmetrically arranged first sliding groups, which are used to support the two ends of the profile respectively. The first sliding assembly includes a plurality of first conveying components arranged at intervals. Each first conveying component includes a conveying base and a conveyor belt assembly. The conveying base is mounted on the turntable, and the conveyor belt assembly is installed inside the conveying base. The conveyor belt assembly is adapted to contact the profile.

3. The PE wood-plastic composite profile stacking device according to claim 2, characterized in that: The turntable is provided with an adjustment mechanism for adjusting the conveying direction of the conveyor belt group to be consistent with the pushing direction of the pushing mechanism. The adjustment mechanism includes a second linear drive mechanism, two racks corresponding to the first sliding group, and several gears corresponding to the conveying base. The upper side of the gear is fixedly connected to the corresponding conveying base, and the lower side of the gear is rotatably mounted on the steering table. Adjacent gears mesh with each other. The rack is slidably mounted on the steering table. The second linear drive mechanism is mounted on the steering table and connected to the two racks to drive the two racks to move synchronously, so that the rack meshes with one of the gears in the corresponding first sliding group and drives the gear to rotate, thereby driving all the first conveying components to rotate, so that the conveying direction of the conveyor belt group is consistent with the pushing direction of the pushing mechanism after the steering table is driven to rotate.

4. The PE wood-plastic composite profile stacking device according to claim 1, characterized in that: A limit mechanism is provided on the frame; The limiting mechanism includes a third lifting mechanism and a pressure plate. The third lifting mechanism is installed on the frame and is connected to the pressure plate to drive the pressure plate to move toward the profile on the turntable, thereby contacting the profile.

5. The PE wood-plastic composite profile stacking device according to claim 1, characterized in that: The separating mechanism includes a movable plate and a movable support roller. The movable plate is slidably disposed within the placement plate, and the movable support roller is rotatably mounted on the movable plate. The third linear drive mechanism is connected to the movable plate to drive the movable support roller to move linearly within the placement chamber.

6. The PE wood-plastic composite profile stacking device according to claim 1, characterized in that: A discharge assembly is provided on the lower chamber, the discharge assembly comprising: Two unloading platforms are slidably mounted on the placement plate, and the unloading platforms are used to receive the two ends of the first layer profile located below the second layer profile in the longitudinal direction; A fourth linear drive mechanism is disposed on the placement plate. This fourth linear drive mechanism is connected to the two unloading platforms to drive the two unloading platforms to move in opposite directions or towards each other, thereby opening or closing the channel through which the profile assembly moves downwards to exit the lower chamber. Wherein: The unloading platform is rotatably equipped with a receiving roller that contacts and supports the first layer of profiles. The rotation direction of the receiving roller is consistent with the movement direction of the pushing mechanism pushing the first layer of profiles. The unloading platform is provided with a guide section and a dropping section. When the fourth linear drive mechanism drives the two unloading platforms to move in opposite directions, and the profile group moves downward after losing the support of the receiving roller, the two ends of the first layer of profile in the profile group fall to the guide section first and then leave the unloading platform through the dropping section.

7. The PE wood-plastic composite profile stacking device according to claim 6, characterized in that: The receiving roller has a limiting part and an inclined part on its two sides in the axial direction, the inclined part and the guide part are located on the same side, and the limiting part is located on the other side of the receiving roller; The limiting part is adapted to limit the end face portion of one end of the first layer profile when the first layer profile is located on the receiving roller; The inclined portion is adapted so that when the receiving roller is actuated and pulled out from the bottom of the profile assembly, the profile assembly first contacts the inclined portion and then contacts the guide portion.

Images