A stacking device for spot pallet production

Abstract

The present application relates to the technical field of plastic tray production, and provides a fixed-point pallet production stacking device, which comprises a stacking device and a positioning block; the positioning block is arranged on one side of the top end of the stacking device, and stacking structures are arranged on both sides of the stacking device; the stacking structure comprises a mounting frame. Through the lifting plate, horizontal rotation swing is first completed under the guidance of the guide groove, the lifting plate is accurately inserted into the bottom load-bearing gap between the plastic tray layers to complete the clamping and alignment, and then vertical upward lifting operation is performed. The overall action has no rigid hard impact, can adapt to the structural characteristics of the hollowed-out bottom end of the plastic tray, effectively avoids bumping and damage to the finished plastic tray during the lifting process, and simultaneously adopts a layered lifting operation mode, so that the load of the upper whole stack of plastic trays is entirely borne by the lifting plate, the subsequent new tray is not blocked and extruded, the new tray can stably enter the stacking station, and the problem of pressure jamming of the feeding mechanism is solved.

Description

Technical Field

[0001] This invention relates to the field of plastic pallet production technology, and in particular to a palletizing device for fixed-point pallet production. Background Technology

[0002] Plastic pallets are storage load-bearing components made of plastic through injection molding. They are widely used due to their advantages such as moisture and corrosion resistance, stable structure, and recyclability. After the plastic pallets are produced by injection molding, they need to be stacked to facilitate their placement. Traditional production processes often rely on manual methods for palletizing finished products. Manual palletizing is labor-intensive, causes fatigue from prolonged work, and is inefficient. Furthermore, manual stacking makes it difficult to ensure the neatness of pallet stacks, leading to issues such as misalignment, tilting, and other problems between layers. This results in poor stacking stability, making it prone to collapse and scattering during subsequent warehousing, stacking, and forklift transport. Additionally, frequent manual handling of heavy objects increases the risk of workplace injuries. Therefore, a fixed-point palletizing device for pallet production is needed to solve these problems. Summary of the Invention

[0003] The purpose of this invention is to provide a palletizing device for fixed-point pallet production, which solves the problems of high labor intensity, fatigue from long hours of manual operation, and low efficiency in the existing manual palletizing operation. At the same time, manual stacking makes it difficult to ensure the neatness of pallet stacking, and problems such as offset, misalignment, and tilting between layers are prone to occur. The stacking stability is poor, and the pallets are prone to collapse and scattering during subsequent warehousing, stacking and forklift transportation. In addition, the frequent handling of heavy objects by manual labor can easily cause workplace injuries.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a palletizing device for fixed-point pallet production, comprising a palletizing device and a positioning block; A positioning block is inserted and installed on one side of the top of the palletizing device, and palletizing structures are provided on both sides of the palletizing device. The palletizing structure includes a mounting frame, which is installed on both sides of one end of the palletizing device. A fixing sleeve is installed on one side of the mounting frame. A lead screw is installed inside the fixing sleeve. A threaded sleeve is installed on the outside of the lead screw. A rotating sleeve is installed at the top of the threaded sleeve. A lifting plate is installed on one side of the top of the rotating sleeve. A guide groove is opened on the outside of the fixing sleeve. A second gear is installed at the bottom end of the lead screw.

[0005] Preferably, a first gear is installed at the top of the lead screw, a rotating gear is installed on one side of the first gear, a rack is installed on one side of the rotating gear, a mounting plate is fixed to one end of the rack, a spring is installed on one side of the mounting plate, a clamping plate is installed on one side of the spring, and ball bearings are movably installed on the surface of the clamping plate.

[0006] Preferably, a guide post is installed on one side of the clamping plate, and one end of the guide post penetrates the interior of the mounting plate. The guide post and the mounting plate form a guiding connection. Two sets of clamping plates are provided, and the two sets of clamping plates are symmetrically distributed on both sides of the stacking device. The arrangement of the two sets of clamping plates can correct and center the position of the plastic pallet, effectively preventing problems such as interlayer offset, misalignment, and tilting of the plastic pallet during the stacking process, and improving the overall stacking regularity.

[0007] Preferably, a plurality of springs are provided, and the plurality of springs and the clamping plate form a telescopic structure. The telescopic structure can achieve flexible clamping of the plastic pallet, avoid rigid compression of the clamping plate causing damage to the side of the plastic pallet, and achieve finished product protection.

[0008] Preferably, a limiting groove is formed on one side inside the fixed sleeve, a limiting block is installed inside the limiting groove, one end of the limiting block is connected to the surface of the threaded sleeve, and a limiting connection is formed between the limiting block and the limiting groove.

[0009] Preferably, a plurality of balls are provided, which are connected and roll on the surface of the clamping plate. The arrangement of a plurality of balls can achieve clamping and limiting without hindering the vertical lifting and movement of the plastic tray, thus taking into account both lateral limiting and vertical movement requirements.

[0010] Preferably, the palletizing device has a screw installed inside, a screw sleeve installed on the outer side of one end of the screw, a push plate installed on the top of one end of the screw sleeve, a plastic tray placed on one side of the push plate, toothed plates installed on both sides of the screw sleeve, and guide blocks installed at both ends inside the palletizing device.

[0011] Preferably, the toothed plates are provided in two sets, and the two sets of toothed plates mesh with the second gear.

[0012] Preferably, the bottom end of the rotating sleeve is inserted into the interior of the top end of the wire sleeve, and the rotating sleeve and the wire sleeve form a movable connection.

[0013] Preferably, the inner side of the threaded sleeve is provided with an internal thread, and the outer side of the lead screw is provided with an external thread, and the threaded sleeve and the lead screw form a threaded connection.

[0014] The present invention provides a palletizing device for fixed-point pallet production, the advantages of which are: With a palletizing structure, the height-adjustable positioning block can be flexibly adjusted according to the stacking height of the plastic pallets, effectively limiting the final stacking position of the plastic pallets; at the same time, the guide block inside the palletizing device can limit and guide the bottom of the plastic pallet during the movement, preventing the plastic pallet from shifting position when pushed and moving, and ensuring a smooth and stable feeding process. Furthermore, the lifting plate can first complete horizontal rotation and swing under the guidance of the guide groove, accurately insert into the bottom load-bearing gap between the layers of plastic pallets to complete the locking and alignment, and then carry out vertical upward lifting operation. The whole action is free of rigid hard impact, which can adapt to the hollow structure of the bottom of the plastic pallet, effectively avoiding collision damage to the finished plastic pallet during the lifting process. At the same time, the layered lifting operation method ensures that the load of the entire stack of plastic pallets above is borne by the lifting plate, which will not obstruct or squeeze the new pallets that are subsequently sent in, ensuring that the new pallets can enter the stacking station stably, and solving the problem of pressure jamming of the feeding mechanism. Furthermore, while the plastic pallets are being lifted and stacked, the screw drive can simultaneously drive the gear and rack to mesh and drive the clamping plates on both sides to move synchronously and fit against the sides of the plastic pallet. This can correct and center the position of the plastic pallet, effectively preventing problems such as interlayer offset, misalignment, and tilting of the plastic pallet during the stacking process, and improving the overall stacking regularity. Furthermore, a spring connects the clamping plate and the mounting plate, which enables flexible clamping of the plastic pallet, avoiding damage to the sides of the plastic pallet caused by rigid compression of the clamping plate, thus protecting the finished product; and the ball bearings on the surface of the clamping plate, while completing the clamping and limiting, will not hinder the vertical lifting and movement of the plastic pallet, thus taking into account both lateral limiting and vertical movement requirements. Furthermore, the device can achieve fully automated palletizing of plastic pallets without the need for manual operation, effectively reducing labor costs and intensity, and significantly improving the efficiency of subsequent palletizing operations in plastic pallet production; after each palletizing is completed, all transmission components and clamping and lifting components can be automatically reset, enabling continuous cyclical operation. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional structural schematic diagram of the present invention; Figure 2 This is a side view three-dimensional structural schematic diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the present invention viewed from below; Figure 4 This is a frontal cross-sectional three-dimensional structural schematic diagram of the present invention; Figure 5 This is a side view of the three-dimensional structure of the palletizing structure of the present invention; Figure 6 This is a frontal three-dimensional structural diagram of the palletizing structure of the present invention; Figure 7 This is a partial three-dimensional structural schematic diagram of the side cross-section of the palletizing structure of the present invention; Figure 8 This is a three-dimensional structural schematic diagram of the palletizing structure of the present invention, viewed from the front and in cross-section. Figure 9This is a three-dimensional structural schematic diagram of the fixing sleeve in front cross-section of the present invention; Figure 10 This is a frontal view of the partially exploded three-dimensional structure of the palletizing structure of the present invention; Figure 11 This is a side view of the partially exploded three-dimensional structure of the stacking structure of the present invention.

[0016] The reference numerals in the figure are as follows: 1. Palletizing device; 2. Push plate; 3. Plastic pallet; 4. Palletizing structure; 401. Screw; 402. Mounting bracket; 403. Rack; 404. Mounting plate; 405. Guide post; 406. Spring; 407. Clamping plate; 408. Ball bearing; 409. Fixing sleeve; 4010. Toothed plate; 4011. Rotating gear; 4012. First gear; 4013. Screw sleeve; 4014. Second gear; 4015. Guide groove; 4016. Threaded sleeve; 4017. Rotating sleeve; 4018. Screw; 4019. Lifting plate; 4020. Limiting block; 4021. Limiting groove; 5. Positioning block; 6. Guide block. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-11 The present invention provides a palletizing device for fixed-point pallet production, comprising a palletizing device 1 and a positioning block 5; A positioning block 5 is inserted and installed on one side of the top of the palletizing device 1, and a palletizing structure 4 is provided on both sides of the palletizing device 1.

[0019] Reference Figures 1-11 As shown, the palletizing structure 4 includes a mounting frame 402, which is installed on both sides of one end of the palletizing device 1. A fixing sleeve 409 is installed on one side of the mounting frame 402. A lead screw 4018 is installed inside the fixing sleeve 409. A lead sleeve 4016 is installed on the outside of the lead screw 4018. A rotating sleeve 4017 is installed at the top of the lead sleeve 4016. A lifting plate 4019 is installed on one side of the top of the rotating sleeve 4017. A guide groove 4015 is opened on the outside of the fixing sleeve 409. A second gear 4014 is installed at the bottom end of the lead screw 4018. A first gear 4012 is installed at the top of the lead screw 4018. A rotating gear 4011 is installed on one side of the first gear 4012. A rack 403 is installed on one side of the rotating gear 4011. A mounting plate 404 is fixed to one end of the rack 403. A spring 406 is installed on one side of the mounting plate 404. A clamping plate 407 is installed on one side of the spring 406. A ball bearing 408 is movably installed on the surface of the clamping plate 407. A guide post 405 is installed on one side of the clamping plate 407. One end of the guide post 405 penetrates the interior of the mounting plate 404, and the guide post 405 and the mounting plate 404 form a guiding connection. Two sets of clamping plates 407 are provided, and the two sets of clamping plates 407 are symmetrically distributed on both sides of the stacking device 1. Several springs 406 are provided, and the several springs 406 and the clamping plate 407 form a telescopic structure. A limiting groove 4021 is opened on one side of the interior of the fixing sleeve 409. A limiting block 4020 is installed inside the limiting groove 4021, and one end of the limiting block 4020 is connected to the surface of the threaded sleeve 4016. The limiting block 4020 and the limiting groove 4021 form a limiting connection; several balls 408 are provided, and the balls 408 roll and connect on the surface of the clamping plate 407; a screw 401 is installed inside the stacking device 1, a screw sleeve 4013 is installed on the outer side of one end of the screw 401, a push plate 2 is installed on the top of one end of the screw sleeve 4013, a plastic tray 3 is placed on one side of the push plate 2, toothed plates 4010 are installed on both sides of the screw sleeve 4013, and guide blocks 6 are installed at both ends inside the stacking device 1; two sets of toothed plates 4010 are provided, and the two sets of toothed plates 4010 mesh with the second gear 4014.

[0020] The bottom end of the rotating sleeve 4017 is inserted into the inside of the top end of the threaded sleeve 4016, and the rotating sleeve 4017 and the threaded sleeve 4016 form a movable connection. The inner side of the threaded sleeve 4016 is provided with an internal thread, and the outer side of the lead screw 4018 is provided with an external thread, forming a threaded connection between the threaded sleeve 4016 and the lead screw 4018. When stacking plastic pallets 3, a set is placed on one side of the top of the stacking device 1. After placement, the positioning block 5 is inserted into the top of the other end of the stacking device 1 for positioning. The height of the positioning block 5 is adaptively adjusted according to the stacking height. After the positioning block 5 is inserted and positioned, the external power supply starts the motor to drive the screw 401 to rotate. When the screw 401 rotates, it drives the push plate 2 to move through the cooperation with the screw sleeve 4013. Since the screw sleeve 4013 has guide structures on both sides, the screw sleeve 4013 will move to one side along the surface of the screw 401. When the screw sleeve 4013 moves, it will push the push plate 2 to move. When the push plate 2 moves, it will push the plastic pallet 3 to one side. Since the guide blocks 6 are set on both sides inside the stacking device 1, they can limit the bottom of the plastic pallet 3, so that the plastic pallet 3 will not shift its position during the movement, thus completing the guidance of the plastic pallet 3. When the threaded sleeve 4013 moves to one side, it indirectly drives the toothed plate 4010 to move. The toothed plate 4010 is positioned at the front end of the plastic pallet 3 to facilitate lifting the already stacked plastic pallets 3 before stacking. As the threaded sleeve 4013 moves, the toothed plate 4010 first contacts the second gear 4014. As the toothed plate 4010 moves, it drives the second gear 4014 to rotate. When the second gear 4014 rotates, it drives the threaded sleeve 4016 to rotate. Because the limiting block 4020 on one side of the threaded sleeve 4016 is inserted into the limiting position... The groove 4021 can limit the movement of the threaded sleeve 4016, causing it to move upwards outside the lead screw 4018. As the threaded sleeve 4016 moves upwards, it drives the rotating sleeve 4017 to move. Since the rotating sleeve 4017 can rotate inside the top of the threaded sleeve 4016, the lifting plate 4019 on one side of the top of the rotating sleeve 4017 rotates under the guidance of the guide groove 4015, causing the lifting plate 4019 to rotate to the bottom of the plastic tray 3, and then move upwards, thus placing the plastic tray 3... The lifting plate 4019 is lifted and rotated horizontally via the guide groove 4015, allowing it to precisely insert into the bottom load-bearing gap between the plastic pallets 3. It is then perfectly aligned with the load-bearing frame of the plastic pallet 3 for locking and positioning. It is then lifted vertically upwards without any rigid impact. This design is adapted to the hollowed-out bottom structure of the plastic pallet 3, protecting it from damage during lifting. After the plastic pallet 3 is lifted, the push plate 2 pushes another set of plastic pallets 3 to the bottom of the lifted pallet 3. At this point, the positioning block 5... The use of this device allows for the positioning of the plastic pallet 3 stack, ensuring its proper placement and thus enabling automatic stacking. The lifting mechanism of the plastic pallet 3 enables layered stacking, with the entire load of the upper stack of plastic pallets 3 borne by the lifting plate 4019. This prevents obstruction of incoming plastic pallets 3, ensuring their stable delivery into the stacking station. The entire process is automated, requiring no manual intervention, effectively reducing labor costs and significantly improving the efficiency of post-production stacking of plastic pallets 3. When the lead screw 4018 rotates, it drives the first gear 4012 to rotate. The first gear 4012, in turn, drives the rotating gear 4011 to rotate. The rotating gear 4011, through its meshing with the rack 403, pushes the mounting plate 404 to one side. As the rack 403 moves, its bottom guide plate inserts into the top of the push plate 2, guiding the rack 403 and making its movement more stable. When the lifting plate 4019 completes its rotation and lifts the plastic pallet 3, the mounting plate 404 pushes the clamping plate 407 on one side to adhere to both sides of the plastic pallet 3, clamping both sides. During clamping, the position of the plastic pallet 3 can be adjusted and aligned to prevent interlayer shifting, misalignment, or tilting during stacking. Furthermore, the spring 406 on one side of the clamping plate 407 provides flexible clamping to both sides of the plastic pallet 3, avoiding rigid clamping. The compression causes damage to the sides of the plastic pallet 3, thus protecting the finished plastic pallet 3 and completing protective clamping. After the two sets of clamping plates 407 clamp the plastic pallet 3, they can ensure that the stacked plastic pallet 3 will not shift its position when lifted, improving the neatness of stacking. Since a ball bearing 408 is provided on one side of the clamping plate 407, it will not hinder the vertical lifting and movement of the plastic pallet 3 while completing the clamping limit. It takes into account the requirements of lateral limit and vertical movement, so that the clamping plate 407 will not affect the lifting of the plastic pallet 3 when clamping it, thus completing the limit work of stacking the plastic pallet 3. After the plastic pallet 3 is stacked, the push plate 2 returns to its original position, and the lifting plate 4019 and the clamping plate 407 also return to their original positions for easy stacking next time. After the plastic pallet 3 is stacked, the positioning block 5 is removed and the stacked plastic pallet 3 is taken away, thus completing the stacking work of the plastic pallet 3 and making the stacking of the plastic pallet 3 more efficient.

[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 palletizing device for fixed-point pallet production, comprising a palletizing device (1) and a positioning block (5); Its features are: A positioning block (5) is inserted and installed on one side of the top of the palletizing device (1), and a palletizing structure (4) is provided on both sides of the palletizing device (1). The palletizing structure (4) includes a mounting frame (402), which is installed on both sides of one end of the palletizing device (1). A fixing sleeve (409) is installed on one side of the mounting frame (402). A lead screw (4018) is installed inside the fixing sleeve (409). A threaded sleeve (4016) is installed on the outside of the lead screw (4018). A rotating sleeve (4017) is installed at the top of the threaded sleeve (4016). A lifting plate (4019) is installed on one side of the top of the rotating sleeve (4017). A guide groove (4015) is opened on the outside of the fixing sleeve (409). A second gear (4014) is installed at the bottom end of the lead screw (4018).

2. The palletizing device for fixed-point pallet production according to claim 1, characterized in that: A first gear (4012) is installed at the top of the lead screw (4018). A rotating gear (4011) is installed on one side of the first gear (4012). A rack (403) is installed on one side of the rotating gear (4011). A mounting plate (404) is fixed to one end of the rack (403). A spring (406) is installed on one side of the mounting plate (404). A clamping plate (407) is installed on one side of the spring (406). A ball bearing (408) is movably mounted on the surface of the clamping plate (407).

3. The palletizing device for fixed-point pallet production according to claim 2, characterized in that: A guide post (405) is installed on one side of the clamping plate (407). One end of the guide post (405) penetrates the interior of the mounting plate (404). The guide post (405) and the mounting plate (404) form a guide connection. Two sets of clamping plates (407) are provided. The two sets of clamping plates (407) are symmetrically distributed on both sides of the palletizing device (1).

4. A palletizing device for fixed-point pallet production according to claim 2, characterized in that: A plurality of springs (406) are provided, and the plurality of springs (406) and the clamping plate (407) form a telescopic structure.

5. A palletizing device for fixed-point pallet production according to claim 1, characterized in that: A limiting groove (4021) is provided on one side inside the fixed sleeve (409). A limiting block (4020) is installed inside the limiting groove (4021). One end of the limiting block (4020) is connected to the surface of the thread sleeve (4016). The limiting block (4020) and the limiting groove (4021) form a limiting connection.

6. A palletizing device for fixed-point pallet production according to claim 2, characterized in that: A plurality of balls (408) are provided, and the plurality of balls (408) are rolled together on the surface of the clamping plate (407).

7. A palletizing device for fixed-point pallet production according to claim 1, characterized in that: The palletizing device (1) is equipped with a screw (401) inside. A screw sleeve (4013) is installed on the outer side of one end of the screw (401). A push plate (2) is installed on the top of one end of the screw sleeve (4013). A plastic tray (3) is placed on one side of the push plate (2). Toothed plates (4010) are installed on both sides of the screw sleeve (4013). Guide blocks (6) are installed at both ends inside the palletizing device (1).

8. A palletizing device for fixed-point pallet production according to claim 7, characterized in that: The toothed plate (4010) is provided in two sets, and the two sets of toothed plates (4010) mesh with the second gear (4014).

9. A palletizing device for fixed-point pallet production according to claim 1, characterized in that: The bottom end of the rotating sleeve (4017) is inserted into the interior of the top end of the threaded sleeve (4016), and the rotating sleeve (4017) and the threaded sleeve (4016) form a movable connection.

10. A palletizing device for fixed-point pallet production according to claim 1, characterized in that: The inner side of the threaded sleeve (4016) is provided with an internal thread, and the outer side of the lead screw (4018) is provided with an external thread, and the threaded sleeve (4016) and the lead screw (4018) form a threaded connection.

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