Stacker for plastic empty bottle production

Abstract

The present application relates to the technical field of plastic bottle production equipment, and more particularly to a stacking machine for plastic empty bottle production. The limiting part includes a support column symmetrically arranged on the left side of the machine frame, an electric guide rail is arranged between the two support columns, a moving sleeve is arranged on the slider of the electric guide rail, a guide plate is arranged at the bottom of the moving sleeve, and a positioning frame is slidably arranged on the guide plate; the leveling part is arranged on the front and rear sides and the right side of the machine frame. By setting the limiting part and the leveling part, using the electric guide rail and the double-shaft motor to drive the adjusting structure of the positioning frame in the front and rear directions, the position of the positioning frame can be accurately adjusted according to the arrangement requirements of the plastic bottles, preventing uneven stress and position deviation caused by the arc-shaped fitting of the bottle body, and improving the stacking neatness and the overall structural strength; on this basis, the guide plate in the leveling part cooperates with the moving cloth to automatically correct the possible deviation of the plastic bottles, the partition plates and the supporting plates during the stacking process, and realizes the all-around leveling function.

Description

Technical Field

[0001] This invention relates to the field of plastic bottle production equipment technology, and in particular to a stacker for producing empty plastic bottles. Background Technology

[0002] Plastic empty bottle stacking refers to the process of neatly stacking collected or produced plastic empty bottles according to certain rules and methods. This operation is widely used in plastic recycling stations, beverage production companies, warehousing and logistics centers, etc., to improve space utilization and facilitate subsequent transportation, processing or sales.

[0003] Current stacking equipment typically uses a conveyor to feed plastic bottles intermittently onto a pallet, relying on two partitions on the left and right to simultaneously advance the entire layer of bottles onto the pallet. After completing one layer, the entire structure moves downwards to continue stacking the next layer until the stacking is complete.

[0004] However, in existing equipment, when pushing plastic bottles into the tray via the left and right partitions, the curved shape of the bottles in the middle causes uneven force distribution, making them prone to positional shifts during the pushing process. This affects the neatness and stability of the stack. Furthermore, after stacking layer by layer, the partitions are prone to rubbing against the equipment frame during descent, causing the partitions to warp and affecting the final stacking effect and the integrity of the bottles.

[0005] To address these issues, a stacker machine for producing empty plastic bottles is proposed to overcome the aforementioned technical problems and improve stacking efficiency and quality. Summary of the Invention

[0006] To overcome the shortcomings of the existing technology, the present invention provides a stacker for producing empty plastic bottles, comprising:

[0007] The machine frame has a discharge port on the right side, and a lifting assembly is installed between the inner two sides of the machine frame.

[0008] The conveyor unit, used for conveying and processing rows of plastic bottles, is located on the front side of the machine frame;

[0009] A limiting part for restricting the arrangement position of plastic bottles includes pillars symmetrically arranged on the left side of the machine frame, an electric guide rail installed between the two pillars, a movable sleeve on the slider of the electric guide rail, a guide plate at the bottom of the movable sleeve, a dual-axis motor installed on the guide plate, drive gears on the output ends of the dual-axis motor, a positioning frame sliding through the guide plate, and racks meshing with the drive gears on both sides of the positioning frame.

[0010] The leveling section, used to flatten the plastic bottles and partitions, is located on the front, back, and right sides of the machine frame.

[0011] Optionally, the lifting assembly includes rodless cylinders symmetrically arranged inside the frame, a lifting plate is provided between the sliders of the two rodless cylinders, and a tray for placing plastic bottles is supported on the lifting plate.

[0012] Optionally, the conveying unit includes a conveyor located on the front side of the frame, with baffles on both sides of the conveyor to limit the movement of the conveyed plastic bottles.

[0013] Optionally, it also includes a mounting plate, an intercepting plate, a driven gear, and an electric gear. Each baffle has a through groove near the frame. Each baffle is inclinedly mounted with a mounting plate. An intercepting plate is hinged to the mounting plate and embedded in the through groove on the same side. A driven gear is mounted on the shaft end of one side of the intercepting plate. An electric gear is mounted on the mounting plate relative to the driven gear. The gear body of the electric gear is connected to the shaft end of the intercepting plate on the same side, and the gear body of the electric gear meshes with the driven gear.

[0014] Optionally, the leveling section includes guide plates disposed on the front, rear, and right sides of the machine frame. A movable cloth is connected to the front, rear, and right sides of the lifting plate. The three movable cloths pass around the top of the corresponding side wall of the machine frame so that the movable cloths are embedded in the corresponding guide plates. A load-bearing block is disposed at the end of each movable cloth.

[0015] Optionally, it also includes an upper plate, which includes a bracket disposed on the right side of the frame. The bracket is provided with a roller frame for placing and conveying partitions. A right-angle post for limiting the position of the partitions is disposed around the roller frame. An electric slide rail is mounted on the roller frame. A push plate for pushing stacked partitions is hinged to the slider of the electric slide rail. A torsion spring is disposed between the push plate and the slider of the electric slide rail.

[0016] Optionally, it also includes a pushing unit, which includes two pushing frames that slide through the right side of the frame. The pushing frames are provided with guide rods, and the guide rods are slidably provided with movable blocks that abut against the tray.

[0017] Optionally, the pushing part also includes a stop block slidably disposed on the moving block, an elastic element is provided between the stop block and the inner wall of the corresponding moving block, and a set of contact blocks that contact and abut against the stop block on the same side are provided on both the left and right sides of the tray.

[0018] The beneficial effects of this invention are as follows: 1. By setting a limiting part and a leveling part, and using an electric guide rail and a dual-axis motor to drive the adjustment structure of the positioning frame in the front and rear directions, this invention can accurately adjust the position of the positioning frame according to the arrangement requirements of plastic bottles, thereby ensuring the alignment accuracy and stability of plastic bottles during stacking, preventing uneven force and positional deviation caused by the curved fit of the bottle body, and improving the neatness of stacking and the overall structural strength; On this basis, the guide plate and the moving cloth in the leveling part work together, and the design of the moving cloth bypassing the side wall of the machine frame and being embedded in the guide plate, combined with the load block to maintain tension, can automatically correct the possible deviation of plastic bottles, partitions and pallets during the layer-by-layer descent of stacking, realize the all-round leveling function, and significantly improve the stability and aesthetics of the stacked product.

[0019] 2. The conveying unit in this invention is equipped with an interceptor plate linkage mechanism. The opening and closing of the interceptor plate is controlled by the meshing transmission of electric gear and driven gear. This mechanism can promptly block subsequent conveying after each layer of plastic bottles is full, avoiding stacking chaos or tipping, and effectively enhancing the controllability and continuity of the stacking process.

[0020] 3. By setting an upper plate and using the linkage between the roller frame and the push plate, the present invention can realize the automatic pushing and laying of the partition. The right-angle column restricts the position of the partition, and the torsion spring assists the push plate to reset, simplifying the operation process and improving the efficiency and accuracy of partition laying.

[0021] 4. The pushing part in this invention is equipped with a moving block structure with an elastic abutment. When the pallet moves to a specified height, the contact block contacts the wedge-shaped surface of the abutment to guide the abutment to retract and automatically lock, thereby stabilizing the traction pallet during the subsequent removal of the stacking layer, preventing the right side plastic bottle layer from shifting or being damaged, and ensuring the integrity of the stacked finished product and the safety of the transfer. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the assembly structure of the present invention.

[0023] Figure 2 This is a three-dimensional structural diagram of the components of the present invention, including the conveying part, the limiting part, the upper plate part, and the leveling part.

[0024] Figure 3 This is a three-dimensional structural diagram of the rodless cylinder, lifting plate, and support plate of the present invention.

[0025] Figure 4 For the present invention Figure 3 An enlarged schematic diagram of part A in the middle.

[0026] Figure 5 This is a three-dimensional structural diagram of the components of the limiting part of the present invention.

[0027] Figure 6This is a three-dimensional structural diagram of the components of the upper plate of the present invention.

[0028] Figure 7 This is a three-dimensional structural diagram of the electric slide rail, push plate, and torsion spring of the present invention.

[0029] Figure 8 This is a three-dimensional structural cross-sectional view of the components of the leveling part of the present invention.

[0030] Figure 9 This is a three-dimensional structural diagram of some components of the pushing part of the present invention.

[0031] Figure 10 This is a three-dimensional structural cross-sectional view of the components of the present invention, such as the pallet, pusher, and contact plate.

[0032] Figure 11 For the present invention Figure 10 Enlarged schematic diagram of part B.

[0033] In the attached diagram, the markings are as follows: 100: Plastic bottle; 101: Partition; 1: Frame; 11: Rodless cylinder; 12: Lifting plate; 13: Pallet; 2: Conveying section; 21: Conveyor; 22: Baffle; 221: Through groove; 23: Mounting plate; 24: Interceptor plate; 25: Driven gear; 26: Electric gear; 3: Limiting part; 31: Support column; 32: Electric guide rail; 33: Moving sleeve; 34: Guide plate; 35: Dual-axis electric... 36: Drive gear; 37: Positioning frame; 38: Rack; 4: Upper plate; 41: Support; 42: Roller frame; 43: Right-angle column; 44: Electric slide rail; 45: Push plate; 46: Torsion spring; 5: Leveling part; 51: Guide plate; 52: Moving cloth; 53: Weight block; 6: Pushing part; 61: Pushing frame; 62: Guide rod; 63: Moving block; 64: Abutment block; 65: Elastic element; 66: Contact block. Detailed Implementation

[0034] The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0035] Example: A stacker crane for producing empty plastic bottles, such as... Figures 1-3 , Figure 5 and Figure 8 As shown, it includes:

[0036] The frame 1, as the supporting frame of the whole equipment, has a discharge port on its right side to facilitate the smooth removal of the whole batch of plastic bottles 100 and the supporting components after stacking. The frame 1 is also equipped with a lifting component between the front and rear inner sides to realize the layer-by-layer descent action during the stacking process.

[0037] The conveying unit 2, which is used to convey and process each row of plastic bottles 100, is located on the front side of the frame 1. The conveying unit 2 is responsible for receiving the plastic bottles 100 from the external conveying equipment and accurately transferring them to the stacking area.

[0038] The limiting part 3 is used to restrict the arrangement position of the plastic bottles 100 to ensure the alignment accuracy and stability of the plastic bottles 100 during stacking. The limiting part 3 includes a support column 31 symmetrically fixed on the left side of the frame 1. An electric guide rail 32 is fixedly installed between the two support columns 31. A movable sleeve 33 is provided on the slider of the electric guide rail 32. Driven by the electric guide rail 32, the movable sleeve 33 can move in the front-back direction. A guide plate 34 is fixedly provided at the bottom of the movable sleeve 33. A dual-axis motor 35 is installed on the guide plate 34. The output ends of the dual-axis motor 35 on the front and rear sides are provided with drive... The gear 36 slides through the guide plate 34 and a positioning frame 37 is provided. The positioning frame 37 has multiple partitions, which can be used to position the plastic bottles 100 in layers to prevent displacement or tipping during stacking, thereby ensuring that the stacking remains neat and stable. On the front and rear sides of the positioning frame 37, racks 38 that mesh with the drive gear 36 on the same side are fixedly provided. When the dual-shaft motor 35 is started, the drive gear 36 meshes with the corresponding rack 38, thereby driving the positioning frame 37 to achieve lateral adjustment in the left and right directions, so as to adjust the position of the plastic bottles 100 layer by layer.

[0039] The leveling part 5, used to level the position of the plastic bottle 100 and the partition 101, is provided on the front, rear and right sides of the frame 1.

[0040] In summary, this structure achieves layer-by-layer stacking through a lifting assembly, continuous material supply through a conveyor 2, precise positioning and adaptive adjustment through a limiting part 3, and finally, correction of the side plastic bottles 100 positions through a leveling part 5 to avoid unnecessary positional deviations. This enables efficient, neat, and safe automatic stacking of plastic bottles 100, making it suitable for production environments of various product specifications and possessing good application prospects and practical value.

[0041] like Figures 1-3 and Figures 8-10 The lifting assembly includes rodless cylinders 11 symmetrically arranged on the inner side of the frame 1. A lifting plate 12 is fixedly arranged between the sliders of the rodless cylinders 11 on both sides. The lifting plate 12 carries a tray 13 for placing plastic bottles 100. As the number of stacking layers increases, the rodless cylinders 11 drive the lifting plate 12 and the tray 13 on it to descend layer by layer, making room for the new stacking layer of plastic bottles 100.

[0042] like Figures 1-4As shown, the conveying unit 2 includes a conveyor 21 fixedly installed on the front side of the frame 1. Both the front and rear sides of the conveyor 21 are provided with baffles 22 for limiting the movement of the conveyed plastic bottles 100. The baffles 22 ensure that the plastic bottles 100 are accurately conveyed to the stacking area along a predetermined path, preventing the plastic bottles 100 from deviating from the track due to rolling or collision.

[0043] like Figure 3 and Figure 4 As shown, it also includes a mounting plate 23, an intercepting plate 24, a driven gear 25, and an electric gear 26. Each baffle 22 has a through groove 221 near the frame 1. The mounting plate 23 is fixedly mounted on each baffle 22 at an incline. An intercepting plate 24 is hinged to the mounting plate 23 and embedded in the through groove 221 on the same side. A driven gear 25 is provided on the shaft end of one side of the intercepting plate 24. An electric gear 26 is mounted on the mounting plate 23 relative to the driven gear 25. The gear body of the electric gear 26 is connected to the shaft end of the intercepting plate 24 on the same side, and the gear body of the electric gear 26 meshes with the driven gear 25. The electric gear 26 drives the driven gear 25, thereby controlling the rotation angle of the intercepting plate 24 and effectively intercepting the plastic bottles 100 on the conveyor 21. Once a layer of plastic bottles 100 is stacked, the electric gear 26 is activated, causing the interceptor plate 24 to close, preventing subsequent plastic bottles 100 from entering the stacking area. This ensures that each layer of plastic bottles 100 is neatly arranged, avoiding stacking chaos or tipping caused by too many bottles entering at the same time, and effectively improving the controllability and stability of the stacking process.

[0044] like Figure 1 and Figure 8 As shown, the leveling part 5 includes guide plates 51 arranged on the front, rear and right sides of the frame 1. A movable cloth 52 is connected to the front, rear and right sides of the lifting plate 12. The three movable cloths 52 pass around the top of the corresponding side wall of the frame 1 so that the movable cloths 52 are embedded in the corresponding guide plates 51. A load block 53 is provided at the end of each movable cloth 52 to keep the movable cloth 52 in a taut state.

[0045] As the lifting plate 12 and its supporting plate 13 descend layer by layer, the movable cloth 52 maintains appropriate tension under the action of the load-bearing block 53, sliding along the guide plate 51. This mechanism can automatically adjust and correct any possible misalignment of the plastic bottles 100, partitions 101, and supporting plates 13 during the stacking process, ensuring that each layer of plastic bottles 100 remains neat and stable. In addition, since the movable cloth 52 covers three sides of the frame 1, it can correct the stacking structure from all directions, further enhancing the overall stability and aesthetics of the stacked plastic bottles 100.

[0046] like Figure 1 , Figure 2 , Figure 6 and Figure 7As shown, it also includes an upper plate part 4, which includes a bracket 41 fixedly mounted on the right side of the frame 1. The bracket 41 is provided with a roller frame 42 for placing and conveying the partition 101. A right-angle post 43 for limiting the position of the partition 101 is provided around the roller frame 42, and the bottom of the two right-angle posts 43 on the left side is provided with a notch to facilitate the removal of the partition 101. An electric slide rail 44 is mounted on the roller frame 42. A push plate 45 for pushing the stacked partition 101 is hinged to the slider of the electric slide rail 44. A torsion spring 46 is provided between the push plate 45 and the slider of the electric slide rail 44.

[0047] Therefore, the design of the upper plate 4 enables the automated laying of the partition 101. The pusher 45 is moved left and right by the electric slide rail 44, which can accurately place the partition 101 on top of the stacked plastic bottles 100 layers, ensuring the stability of the stacking process. The presence of the right-angle post 43 ensures that the partition 101 will not shift or tip over before being pushed. The application of the torsion spring 46 simplifies the reset process of the pusher 45, allowing the pusher 45 to operate continuously without additional operation, thus improving the overall work efficiency.

[0048] like Figure 1 and Figures 9-11 As shown, it also includes a pushing unit 6, which includes two pushing frames 61 that slide through the right side of the frame 1. The two pushing frames 61 are arranged in a front-to-back spacing. The part of the pushing frame 61 that is placed inside the frame 1 is provided with a guide rod 62. A movable block 63 that contacts and abuts against the pallet 13 is slidably provided on the guide rod 62. When the stacked plastic bottles 100 layers are lifted, as the pallet 13 moves to a certain height, the movable block 63 will simultaneously abut against the pallet 13, thereby achieving stable traction of the pushing frame 61 and ensuring effective restriction and adhesion of the right side position of the 100 layers of plastic bottles.

[0049] like Figure 10 and Figure 11 As shown, the pushing part 6 also includes a stop block 64 slidably disposed on the moving block 63. An elastic element 65 is disposed between the stop block 64 and the inner wall of the corresponding moving block 63. In this embodiment, the elastic element 65 is a spring, which can provide the necessary elastic force for the reset of the stop block 64. A set of contact blocks 66 are disposed on the left and right sides of the support plate 13, which are in contact with and abut against the stop block 64 on the same side. The contact blocks 66 and the left and right sides of the corresponding stop block 64 are provided with relatively distributed plane and wedge-shaped surfaces to facilitate contact, pushing or abutting between the two.

[0050] Specifically, when the pallet 13 pushes the lifting plate 12, the contact block 66 first contacts the abutment block 64 through its wedge-shaped surface, guiding the abutment block 64 to retract inward until the wedge-shaped surface moves to its end, and the pallet 13 is also assembled accordingly. Subsequently, the abutment block 64 will pop outward under the action of the spring and fit tightly against the flat part of the contact block 66. Under the action of the contact block 66 and the abutment block 64, the position of the pallet 13 is effectively restricted, and the pusher frame 61 can stably pull the pallet 13 and the stack on it when the 100 layers of plastic bottles are loaded and removed. This effectively protects and restricts the right side position of the 100 layers of plastic bottles, avoiding any unnecessary displacement or damage.

[0051] During use, the device must be placed stably, ensuring effective connection between the material conveying equipment and the conveyor section 2. Then, the required partitions 101 are stacked sequentially on the roller frame 42. Under the action of the right-angle post 43, the stacked partitions 101 are stably aligned. The pusher plate 45 is then positioned to the right of the bottom partition 101. After preparation, the dual-axis motor 35 is started, driving the drive gears 36 on both sides to rotate and mesh with the corresponding racks 38. This causes the positioning frame 37 to slide along the guide plate 34, gradually moving to the right and aligning with the left and right sides of the support plate 13. At this point, the material conveying equipment can be started to transport the required stacked plastic bottles 100 to the conveyor 21. Under the action of the side baffles 22, the transported plastic bottles 100 are stably placed on the conveyor 21 and continuously transported to the left, entering the compartment of the positioning frame 37 until the compartment is filled with the required plastic bottles 100.

[0052] At this point, the electric gear 26 is activated, engaging its gear with the driven gear 25. This synchronously drives the intercepting plates 24 on both sides to rotate along the mounting plate 23, causing the intercepting plates 24 to move closer together and close, thus intercepting the plastic bottles 100 subsequently conveyed to the conveyor 21. Simultaneously, the electric guide rail 32 is quickly activated, pushing its components backward, causing the entire compartment of the positioning frame 37 to move backward one layer. The loaded plastic bottles 100 are then pushed onto the pallet 13 and the lifting plate 12. Subsequently, the electric gear 26 is activated again, causing the intercepting plates 24 on both sides to reverse and reset, releasing the restriction on the conveying of plastic bottles 100, allowing the subsequently conveyed plastic bottles 100 to continue entering the empty compartments. This cycle repeats until each compartment of the positioning frame 37 is filled in sequence, and the positioning frame 37 gradually moves backward. The loaded plastic bottles 100 are simultaneously arranged on the rear pallet 13, eventually filling the entire pallet 13, completing the stacking of the bottom layer of plastic bottles 100.

[0053] After stacking is complete, the upper plate 4 is opened, and the electric slide rail 44 on it is activated, causing the slider and pusher plate 45 to move to the left. This pushes the bottom partition 101 to move smoothly to the left with the assistance of the roller frame 42, covering the 100 layers of plastic bottles that have just been stacked. After this layer of partition 101 is placed, the partition 101 stacked on top of it moves down to replace the bottom partition 101. Then, the slider of the electric slide rail 44 is reset, causing the pusher plate 45 to move back to the rightmost end of the electric slide rail 44. During the rightward movement of the pusher plate 45, it will contact the bottom partition 101, causing the pusher plate 45 to rotate, making the pusher plate 45 and the slider flat, and the torsion spring 46 deforms accordingly. When the pusher plate 45 reaches the rightmost end, it flips up and stands upright under the reset action of the torsion spring 46, returning to its initial use state.

[0054] After the required partitions 101 are placed, the dual-axis motor 35 is restarted, causing the drive gear 36 to reverse. The meshing rack 38 drives the positioning frame 37 to move to the left and reset, freeing it from the restriction on the 100 layers of stacked plastic bottles. Then, the rodless cylinders 11 on both sides of the machine frame 1 are activated, causing the lifting plate 12 and its upper components to move down one layer, providing space for the next 100 layers of plastic bottles. During the downward movement of the lifting plate 12, the three movable cloths 52 on the sides are pulled simultaneously, and the load blocks 53 on them pull the corresponding movable cloths 52, thereby keeping the movable cloths 52 flat. In this way, through the linkage of the movable cloths 52, the trays 13, partitions 101, and 100 layers of plastic bottles that have shifted due to movement are leveled and corrected, thus avoiding positional deviation.

[0055] The above operation is then repeated, activating the limiting unit 3 and the conveying unit 2 to stack the plastic bottles 100 on the current partition 101. This cycle continues, and as the number of stacking layers increases, the position of the pallet 13 gradually decreases, while the moving block 63 slides down synchronously along the guide rod 62 with the pallet 13 until the internal space of the machine frame 1 is filled, thus completing the stacking process of one batch of plastic bottles 100.

[0056] After completion, the stacked plastic bottles 100 layers can be pulled out using a forklift or other pushing equipment with the pallet 13 as a stop. During this process, the pallet 13 and its components move to the right and are removed from the discharge port of the machine frame 1. At the same time, the stop block 64 is in contact with the adjacent contact block 66. As the pallet 13 moves, the pusher frame 61 and its components move to the left, effectively limiting the right side position of the plastic bottle stack 100 and preventing displacement. Until the entire stack is completely removed, the stop blocks 64 on both sides are pushed back into the corresponding moving blocks 63. The elastic element 65 is then restrained, thereby releasing the restriction on the contact block 66 and the pallet 13, allowing the entire plastic stack to be completely transferred out, thus completing the overall stacking process of this batch of plastic bottles 100.

[0057] Then, a new pallet 13 is replaced and placed on the lifting plate 12, so that the contact block 66 on it contacts the abutment block 64. The abutment block 64 is retracted and slid along the moving block 63 by the wedge-shaped surface contact and compression. The elastic element 65 deforms accordingly until the abutment block 64 and the contact block 66 return to the plane contact state, realizing the assembly of the pallet 13 and the reset of the pushing part 6, and the stacking process of the next batch of plastic bottles 100 can begin.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, 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 stacker crane for producing empty plastic bottles, comprising: The machine frame (1) has a discharge port on its right side and a lifting assembly is provided between the inner two sides of the machine frame (1). A conveying unit (2) for conveying and processing each row of plastic bottles (100) is provided on the front side of the machine frame (1); Its features include: A limiting part (3) for limiting the arrangement position of plastic bottles (100) includes a support column (31) symmetrically arranged on the left side of the frame (1), an electric guide rail (32) is installed between the two sides of the support column (31), a movable sleeve (33) is provided on the slider of the electric guide rail (32), a guide plate (34) is provided at the bottom of the movable sleeve (33), a dual-axis motor (35) is installed on the guide plate (34), a drive gear (36) is provided on the output ends of the dual-axis motor (35) on both sides, a positioning frame (37) is slidably passed through the guide plate (34), and a rack (38) is provided on both sides of the positioning frame (37) to mesh with the drive gear (36) on the same side; A leveling part (5) for leveling the position of the plastic bottle (100) and the partition (101) is provided on the front, rear and right sides of the frame (1); The lifting assembly includes rodless cylinders (11) symmetrically arranged inside the frame (1), and a lifting plate (12) is provided between the sliders of the rodless cylinders (11) on both sides. The lifting plate (12) carries a tray (13) for placing plastic bottles (100). The leveling section (5) includes guide plates (51) disposed on the front, rear and right sides of the frame (1). A movable cloth (52) is connected to the front, rear and right sides of the lifting plate (12). The three movable cloths (52) pass around the top of the corresponding side wall of the frame (1) so that the movable cloths (52) are embedded in the corresponding guide plates (51). A load-bearing block (53) is provided at the end of each movable cloth (52). It also includes an upper plate (4), which includes a bracket (41) disposed on the right side of the machine frame (1). The bracket (41) is provided with a roller frame (42) for placing and conveying partitions (101). A right-angle post (43) for limiting the position of partitions (101) is provided around the roller frame (42). An electric slide rail (44) is mounted on the roller frame (42). A push plate (45) for pushing stacked partitions (101) is hinged to the slider of the electric slide rail (44). A torsion spring (46) is provided between the push plate (45) and the slider of the electric slide rail (44).

2. The stacker crane for producing empty plastic bottles according to claim 1, characterized in that, The conveying unit (2) includes a conveyor (21) disposed on the front side of the frame (1), and baffles (22) are provided on both sides of the conveyor (21) to restrict the movement of the conveyed plastic bottles (100).

3. A stacker for producing empty plastic bottles according to claim 2, characterized in that, It also includes a mounting plate (23), an interceptor plate (24), a driven gear (25), and an electric gear (26). Each of the baffles (22) has a through groove (221) near the frame (1). Each of the baffles (22) is inclinedly provided with a mounting plate (23). An interceptor plate (24) is hinged to the mounting plate (23) and embedded in the through groove (221) on the same side. A driven gear (25) is provided on the shaft end of one side of the interceptor plate (24). An electric gear (26) is installed on the mounting plate (23) relative to the driven gear (25). The gear body of the electric gear (26) is connected to the shaft end of the interceptor plate (24) on the same side, and the gear body of the electric gear (26) meshes with the driven gear (25).

4. A stacker for producing empty plastic bottles according to claim 3, characterized in that, It also includes a pusher (6), which includes two pusher frames (61) that slide through the right side of the frame (1). The pusher frames (61) are provided with guide rods (62), and the guide rods (62) are provided with movable blocks (63) that are in contact with the tray (13).

5. A stacker for producing empty plastic bottles according to claim 4, characterized in that, The pushing part (6) also includes a stop block (64) slidably disposed on the moving block (63). An elastic element (65) is disposed between the stop block (64) and the inner wall of the corresponding moving block (63). A set of contact blocks (66) are disposed on the left and right sides of the tray (13) to contact and engage with the stop block (64) on the same side.

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