A ton bag stacking shaping device

Abstract

A ton bag stacking shaping device belongs to ton bag packaging machinery field, it includes shaping device, shaping device is located at the rear of stacking device, ton bag conveyer is along front and back conveying direction and is worn in the inside of stacking device, shaping device, stacking device includes stacking frame, the inside of stacking frame is equipped with lifting frame, a pair of clamping components is symmetrically hinged on lifting frame, shaping device includes shaping frame, and two groups of shaping units are symmetrically arranged on the left and right sides of shaping frame, shaping unit includes two groups of shaping plates arranged in the upper and lower, and rotating door is arranged on the front and rear ends of shaping frame, and shaping unit is arranged on the rotating door, top plate mechanism is arranged on the upper portion of shaping frame, and the lifting action of top plate mechanism is driven to realize by top plate lifting mechanism, top plate mechanism includes moving frame, locking unit is arranged on moving frame, locking unit can lock moving frame at different height positions, and top pressing plate can independently lift when moving frame is locked. The utility model is suitable for completing stacking shaping operation in limited space.

Description

Technical Field

[0001] This utility model relates to a ton bag stacking and shaping device, belonging to the field of ton bag packaging machinery. Background Technology

[0002] In ton bag packaging production lines, to facilitate subsequent warehousing and make full use of space during loading, two ton bags are usually stacked one on top of the other on a pallet. However, due to the uneven distribution of material inside the flexible ton bags after filling, the shift in the center of gravity, the outward bulging of the middle of the bag, and the unevenness of the top surface, direct stacking can easily cause slippage and overturning. Therefore, before stacking a single ton bag, it is necessary to pre-shape it to make the top surface of the ton bag flat and reduce the risk of stacking instability. In addition, there will be alignment deviation between the upper and lower layers of ton bags after stacking. Even if the single layer of ton bags has been pre-shaped, there is still a risk of shifting and stacking overturning during transportation. Therefore, after stacking, the double-layer ton bags need to be shaped again to correct the center of gravity deviation.

[0003] In existing ton bag stacking and shaping systems, to meet the shaping requirements before and after ton bag stacking, a shaping machine with a different applicable height is usually arranged before and after the stacking machine. A single shaping machine can only adapt to stacks with small height variations. For example, patent document CN114684433A discloses an automatic ton bag shaping and exhaust device, and patent document CN223673013U discloses a fully automatic shaping machine. The shaping machine frame has liftable shaping plates at the inlet and outlet, and a top plate at the top of the frame. Initially, the inlet shaping plate is at the top of the frame. After the ton bag is fed into the frame by the conveyor, the inlet shaping plate descends to the lowest position, and the cylinder drives the top plate to press down on the ton bag. The four shaping plates are driven by cylinders to jointly squeeze the bag body to form a five-sided shape. The above-mentioned shaping machine is limited by the stroke of the top plate and cannot meet the shaping needs of stacks with large height changes. That is, the shaping before and after the ton bags are stacked needs to be operated by different shaping machines, which increases the production cost. In addition, the purpose of raising the inlet and outlet shaping plates of the above-mentioned shaping machine to a high position is to avoid the stacks of material entering the shaping area. When the height of the stack is high, the height of the inlet and outlet shaping plates also needs to be increased, and their lifting stroke needs to be increased simultaneously. This will cause the shaping machine to occupy a lot of height space. The height of two ton bags stacked together increases significantly. Therefore, after increasing the overall height of the existing shaping machine, it will be difficult to apply it to the production line with limited installation height space. Utility Model Content

[0004] To address the problem of large space occupation and limited application scenarios caused by arranging two shaping machines with different applicable heights in existing ton bag stacking and shaping systems, this utility model proposes a ton bag stacking and shaping device. It includes a ton bag conveyor, a stacking device, and a shaping device. The shaping device is located behind the stacking device. The ton bag conveyor passes through the stacking and shaping devices along the front-to-back conveying direction. The stacking device includes a stacking frame, with a clamping and lifting mechanism at the top. A lifting frame is located inside the stacking frame. The traction end of the clamping and lifting mechanism extends downward and connects to the upper end of the lifting frame. A pair of clamping components are symmetrically hinged to the lifting frame. The clamping components can swing to clamp the ton bags, and the clamping and lifting mechanism can drive the lifting frame to move vertically. The shaping device includes a shaping frame, with two sets of shaping units symmetrically arranged on the left and right sides of the shaping frame. The shaping unit includes two sets of shaping plates arranged vertically. Each set of shaping plates has an independent drive mechanism on its outer side, which can drive the shaping plate to move horizontally. The front and rear ends of the shaping frame are equipped with rotating doors and are rotatably connected to them. The rotating doors are equipped with shaping units. The rotating doors can open and close in the front and rear directions. When the rotating doors are closed, they can be locked with the shaping frame. When the rotating doors are open, they can avoid the entry and exit of ton bag stacks. The upper part of the shaping frame is equipped with a top plate mechanism. The top plate mechanism is connected to the traction end of the top plate lifting mechanism and is driven by the top plate lifting mechanism to achieve lifting action. The top plate lifting mechanism is located at the top of the shaping frame. The top plate mechanism includes a top pressure plate and a moving frame. The moving frame is equipped with a locking unit, which can lock the moving frame at different height positions. The top pressure plate can be raised and lowered independently when the moving frame is locked.

[0005] The clamping assembly includes a four-bar linkage, a longitudinal clamping plate, and a transverse support plate. The upper end of the four-bar linkage is hinged to the lifting frame. The longitudinal clamping plate is provided on the inner side of the connecting rod of the four-bar linkage, and the transverse support plate is provided on the lower end of the horizontal connecting rod of the four-bar linkage. The four-bar linkage is driven by a push cylinder to realize its inward and outward swinging action. The cylinder body of the push cylinder is hinged to the lifting frame. When the four-bar linkage swings inward, the longitudinal clamping plate can clamp the ton bag body, and the transverse support plate can support the bottom of the ton bag or clamp the lower part of the bag body.

[0006] The middle of the pair of clamping components is provided with a horizontally arranged pressure plate. The upper end of the pressure plate is hinged to the cylinder rod of a vertically arranged pressure plate cylinder. The cylinder body of the pressure plate cylinder is connected to the lifting frame. The pressure plate cylinder drives the pressure plate to rise and fall vertically.

[0007] Rotary cylinders are respectively installed in the middle of the front and rear ends of the shaping frame. The cylinder rod of the rotary cylinder is hinged to the middle of the revolving door, and the rotary cylinder drives the revolving door to realize the opening and closing action.

[0008] A buffer frame is provided on the outside of the shaping frame, near the rotating end of the revolving door and located on the outside of the ton bag conveyor. When the revolving door is in the open state, its outer wall flexibly abuts against the buffer frame.

[0009] A swing stop block that can swing horizontally back and forth is hinged to the shaping frame near the free end of the revolving door. When the revolving door is closed, the swing stop block swings to its end face against the outer wall of the revolving door to achieve a limiting stop.

[0010] The upper four corners of the movable frame are connected to the traction end of the top plate lifting mechanism. The movable frame is driven by the top plate lifting mechanism to move up and down along the vertical guide rail on the shaping frame. A horizontally arranged top pressure plate is provided in the lower middle part of the movable frame. The upper end of the top pressure plate is hinged to the cylinder rod of a vertically arranged downward pressure cylinder. The cylinder body of the downward pressure cylinder is connected to the movable frame. The downward pressure cylinder drives the top pressure plate to move up and down vertically.

[0011] Locking units are provided at the four corners of the side of the movable frame. Each locking unit includes a locking block. The middle part of the locking block is hinged to the movable frame, and the upper part of the locking block is hinged to the cylinder rod of the locking cylinder. The cylinder body of the locking cylinder is hinged to the movable frame. A limiting block is provided at the non-locking end of the locking block. Toothed positioning plates that cooperate with the locking block are provided at the four corners of the outer side of the shaping frame. Multiple sets of stepped positioning slots are continuously opened along the height direction of the toothed positioning plates. The stepped positioning slots of different heights correspond to different lowering and locking positions of the movable frame. The locking cylinder drives the locking block to rotate up and down around the hinge point. After rotating to the position, the locking end of the locking block abuts and engages with a set of stepped positioning slots, and the non-locking end abuts with the limiting block to achieve positioning and locking.

[0012] A pallet conveyor is provided on the side of the stacking device. The conveying direction of the pallet conveyor is perpendicular to the conveying direction of the ton bag conveyor. The pallet conveyor inputs pallets into the ton bag conveyor and / or outputs pallets from the ton bag conveyor.

[0013] The beneficial effects of this utility model are:

[0014] A. By using only one shaping device at the rear of the stacking device, which is suitable for different heights, the system can simultaneously meet the shaping needs of single and double-layer ton bags. This allows the system to complete the stacking and shaping operations in a limited space, with a smaller overall footprint and a wider range of applicable scenarios.

[0015] B. The clamping assembly is equipped with a four-bar linkage, which enables the longitudinal clamping plate to swing inward and the transverse support plate to move horizontally inward in a single stroke. This allows the longitudinal clamping plate to hold the ton bag while the transverse support plate remains in a horizontal position and reliably inserts into the bottom of the ton bag to support it. The overall swing space does not exceed the stacking frame, maximizing space saving while avoiding the risk of the ton bag sliding down and falling during the lifting process.

[0016] C. Both the rotating door and the shaping frame are equipped with two sets of shaping plates arranged vertically. The horizontal movement of each shaping plate can be controlled independently according to the stacking of the ton bags. The actions are independent and do not interfere with each other, so that the same shaping device can adapt to the ton bags before and after stacking to form continuous shaping.

[0017] D. The top plate mechanism is liftable and equipped with a locking unit, which can automatically adjust the lifting height according to the height of the ton bag and lock it at the corresponding height by the locking unit. During the shaping operation, the top plate lifting mechanism does not need to continuously bear the reverse load of the top pressure plate.

[0018] E. The revolving doors at the entrance and exit reduce the required height space of the equipment, resulting in a high degree of overall equipment integration. This allows for shaping operations with large height changes before and after stacking ton bags within a limited space. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the stacking and shaping device of this utility model.

[0020] Figure 2 This is a schematic diagram of the stacking device.

[0021] Figure 3 This is a schematic diagram of the clamping assembly.

[0022] Figure 4 This is a schematic diagram of the shaping device.

[0023] Figure 5 yes Figure 4 A diagram showing the closed state of a revolving door.

[0024] Figure 6 This is a schematic diagram of the shaping unit.

[0025] Figure 7 This is a structural diagram of the top plate mechanism.

[0026] Figure 8 This is a schematic diagram of the locked state of the top plate mechanism.

[0027] Figure 9 This is a diagram showing the first ton bag being prepared to be placed on a pallet.

[0028] Figure 10 This is a schematic diagram showing the state of the second ton bag entering the shaping area.

[0029] Figure 11 This is a schematic diagram showing two ton bags ready to be stacked.

[0030] Figure 12 This is a schematic diagram showing the state of a double-layered ton bag entering the shaping area.

[0031] Figure 13This is a schematic diagram showing the state of a double-layer ton bag being shaped.

[0032] In the diagram: 1-Tonnage bag conveyor; 2-Stacking device; 21-Stacking frame; 22-Clamping lifting mechanism; 23-Lifting frame; 24-Clamping assembly; 241-Four-bar linkage; 242-Longitudinal clamping plate; 243-Horizontal support plate; 244-Pushing cylinder; 25-Covering plate; 26-Pressure plate cylinder; 3-Shaping device; 31-Shaping frame; 311-Vertical guide rail; 312-Toothed positioning plate; 313-Stepped slot. 32-Shaping unit; 321-Shaping plate; 322-Drive mechanism; 323-Pressure rod; 33-Top plate mechanism; 331-Top pressure plate; 332-Moving frame; 333-Pressing cylinder; 334-Locking block; 335-Locking cylinder; 336-Limit block; 34-Top plate lifting mechanism; 35-Revolving door; 36-Buffer frame; 37-Rotating cylinder; 38-Swing stop block; 4-Pallet conveyor; 5-Ton bag. Detailed Implementation

[0033] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the embodiments of this utility model are described in detail below with reference to the accompanying drawings. The embodiments are exemplary and intended to explain this utility model, but should not be construed as limiting this utility model.

[0034] like Figure 1 As shown, the purpose of this utility model is to provide a ton bag stacking and shaping device, which includes a ton bag conveyor 1, a stacking device 2, a shaping device 3, and a pallet conveyor 4. The shaping device 3 is located behind the stacking device 2. The ton bag conveyor 1 passes through the stacking device 2 and the shaping device 3 along the front-to-back conveying direction and is used for conveying and feeding ton bags 5. The pallet conveyor 4 is provided on the side of the stacking device 2. The conveying direction of the pallet conveyor 4 is perpendicular to the conveying direction of the ton bag conveyor 1. The pallet conveyor 4 inputs pallets into the ton bag conveyor 1 and / or outputs pallets from the ton bag conveyor 1. When a set of pallet conveyors 4 is provided on each of the left and right sides of the stacking device 2, one set of pallet conveyors 4 inputs pallets into the ton bag conveyor 1, and the other set of pallet conveyors 4 outputs pallets from the ton bag conveyor 1. At the same time, a pallet pushing mechanism can be provided to push the pallets from the ton bag conveyor 1 onto the pallet conveyor 4. It should be noted that after the ton bags are filled, they may be placed directly on the pallet or directly on the ton bag conveyor 1. This system can be adapted to various forms of stacking and shaping needs.

[0035] like Figures 2-3As shown, in one embodiment, the stacking device 2 includes a stacking frame 21, a clamping lifting mechanism 22 is provided at the top of the stacking frame 21, and a lifting frame 23 is provided inside the stacking frame 21. The traction end of the clamping lifting mechanism 22 extends downward and connects to the upper end of the lifting frame 23. A pair of clamping components 24 are symmetrically hinged on the left and right sides of the lifting frame 23. The clamping components 24 can swing to clamp the ton bag 5. The clamping lifting mechanism 22 can drive the lifting frame 23 to vertically lift and move the ton bag 5 to a designated position. The clamping lifting mechanism 22 is preferably a motor-driven chain lifting mechanism. The stacking frame 21 is a four-column closed frame. Guide wheels are provided around the lifting frame 23. The guide wheels move up and down along the stacking frame 21.

[0036] Furthermore, the clamping assembly 24 includes a four-bar linkage 241, a longitudinal clamping plate 242, and a transverse support plate 243. The upper end of the four-bar linkage 241 is hinged to the lifting frame 23. The longitudinal clamping plate 242 is provided on the inner side of the connecting rod of the four-bar linkage 241, and the transverse support plate 243 is provided on the lower end of the horizontal connecting rod of the four-bar linkage 241. The four-bar linkage 241 is driven by a push cylinder 244 to achieve its inward and outward swinging action. The cylinder body of the push cylinder 244 is hinged to the lifting frame 23. When the four-bar linkage 241 swings inward to the position, the longitudinal clamping plate 242 is in a vertical state, at which time the ton bag 5 is clamped. Meanwhile, the horizontal support plate 243 can support the bottom of the ton bag 5 or clamp the lower part of the bag body. When the ton bag 5 is in the pallet placement state, the bag body is clamped by the clamping component 24. At this time, the horizontal pallet can clamp the lower part of the bag body, which also ensures that the bag body does not slide down during the lifting process. The four-bar linkage 241 set on the clamping component 24 realizes that the vertical clamping plate 242 swings inward while the horizontal support plate 243 moves horizontally inward. It can clamp the ton bag 5 body through the vertical clamping plate 242, and at the same time, the horizontal support plate 243 can always keep the horizontal state and insert into the bottom of the ton bag 5 to support the ton bag, which improves the reliability of the ton bag lifting process.

[0037] Furthermore, a horizontally arranged pressure plate 25 is provided in the middle of a pair of clamping components 24. The upper end of the pressure plate 25 is hinged to the cylinder rod of a vertically arranged pressure plate cylinder 26. The cylinder body of the pressure plate cylinder 26 is connected to the lifting frame 23. The pressure plate cylinder 26 drives the pressure plate 25 to rise and fall vertically. The pressure plate 25 is set to limit the top of the ton bag 5 synchronously during the clamping process, which can better maintain the bag shape and prevent the ton bag 5 from running upwards during the clamping process. This design can be used for clamping full-bag ton bags as well as for the reliable clamping action of half-bag ton bags, and the overall versatility is stronger.

[0038] like Figure 4As shown, in one embodiment, the shaping device 3 includes a shaping frame 31. Two sets of shaping units 32 are symmetrically arranged on the left and right sides of the shaping frame 31. Rotating doors 35 are provided at both the front and rear ends of the shaping frame 31 and are rotatably connected to them. The rotating doors 35 are provided with shaping units 32. The rotating doors 35 can realize the opening and closing action in the front and rear directions. A top plate mechanism 33 is provided on the upper part of the shaping frame 31. The top plate mechanism 33 is connected to the traction end of the top plate lifting mechanism 34 and is driven by the top plate lifting mechanism 34 to realize the lifting action. The top plate lifting mechanism 34 is located at the top of the shaping frame 31. The top plate lifting mechanism 34 is preferably a motor-driven chain lifting mechanism. The shaping frame 31 is a four-column closed frame.

[0039] Furthermore, such as Figure 5 As shown, rotary cylinders 37 are respectively provided at the middle of the front and rear ends of the shaping frame 31. The cylinder rod of the rotary cylinder 37 is hinged to the middle of the rotating door 35, and the rotary cylinder 37 drives the rotating door 35 to realize the opening and closing action. A buffer frame 36 is provided on the outside of the shaping frame 31, near the rotating end of the rotating door 35 and located outside the ton bag conveyor 1. When the rotating door 35 is in the open state, its outer wall flexibly abuts against the buffer frame 36. The buffer on the buffer frame 36 absorbs the impact load during the door panel movement, avoiding hard collisions between rigid parts. A hinged device is provided on the shaping frame 31 near the free end of the rotating door 35. The swing stop block 38 is horizontally swaying back and forth. There are two swing stop blocks 38 spaced vertically. The swing stop block 38 is driven by a cylinder to achieve horizontal swaying. When the rotating door 35 is closed, the cylinder drives the swing stop block 38 to swing until its end face abuts against the outer wall of the rotating door 35 to achieve a limit stop and form a rigid lock. This can resist the pushing force of the material stack on the door panel during the shaping operation and ensure that a stable and sealed shaping operation space is formed inside the shaping frame 31. When it is necessary to open the rotating door 35, the cylinder drives the swing stop block 38 to disengage from the rotating door 35 and unlock it. The door opening action can then be completed by rotating cylinder 37.

[0040] like Figure 6As shown, in one embodiment, the shaping unit 32 includes two sets of shaping plates 321 arranged vertically. Each set of shaping plates 321 has an independent driving mechanism 322 on its outer side. The driving mechanism 322 can drive the shaping plate 321 to move horizontally. The area between the two sets of shaping plates 321 is provided with vertically arranged pressure rods 323. In actual use, the electro-hydraulic actuator can push out the lower shaping plate 321 separately or push out both the upper and lower shaping plates 321 together, depending on the actual height of the ton bag. This allows it to adapt to single and double-layer ton bags, making the shaping device highly versatile. Only one such device is needed on the production line to complete the shaping operation of ton bags before and after stacking, solving the problem of shaping high and low stacks in harmony. The pressure-bearing rod 323 can effectively offset the lateral extrusion force, ensuring the flatness of the sides of the ton bag during extrusion shaping. Furthermore, the drive mechanism 322 preferentially uses an electro-hydraulic actuator, which has strong heavy-duty extrusion capacity, stepless adjustment of output pressure, and pressure maintenance throughout the extrusion process, making the shaped ton bag more square and less prone to rebound and collapse.

[0041] like Figure 7 , Figure 8 As shown, in one embodiment, the four upper corners of the movable frame 332 are connected to the traction end of the top plate lifting mechanism 34. The movable frame 332 is driven by the top plate lifting mechanism 34 to move up and down along the vertical guide rail 311 on the shaping frame 31. A horizontally arranged top pressure plate 331 is provided in the lower middle part of the movable frame 332. The upper end of the top pressure plate 331 is hinged to the cylinder rod of the vertically arranged downward pressure cylinder 333. The cylinder body of the downward pressure cylinder 333 is connected to the movable frame 332. The downward pressure cylinder 333 drives the top pressure plate 331 to move up and down vertically.

[0042] Furthermore, locking units are provided at the four corners of the side of the movable frame 332. Each locking unit includes a locking block 334. The middle part of the locking block 334 is hinged to the movable frame 332, and the upper part of the locking block 334 is hinged to the cylinder rod of the locking cylinder 335. The cylinder body of the locking cylinder 335 is hinged to the movable frame 332. A limiting block 336 is provided at the non-locking end of the locking block 334. Toothed positioning plates 312 that cooperate with the locking blocks 334 are provided at the four corners of the outer side of the shaping frame 31. The toothed positioning plates 312 have multiple sets of equidistant stepped slots 313 continuously opened along the height direction. The stepped slots 313 of different heights correspond to different lowering and locking positions of the movable frame 332. The locking cylinder 335 drives the locking block 334 to rotate up and down around the hinge point. When the top plate mechanism descends to the appropriate height of the material stack, the locking cylinder 335 extends to drive the locking block 334. The locking block 334 flips downwards and rotates to the correct position. The locking end of the locking block 334 abuts against and engages with the stepped slot 313 at the corresponding height, while the non-locking end abuts against the limiting block 336. When the top plate 331 is working, it is rigidly locked by the engagement of the limiting block 336 and the locking block 334, so that the top plate lifting mechanism 34 does not need to continuously bear the reverse load of the top plate 331. When it is necessary to adjust the height of the top plate 331, the moving frame 332 is first driven by the top plate lifting mechanism 34 to descend vertically a short distance, so that the locking end of the locking block 334 is disengaged from the original abutment position of the stepped slot 313, which facilitates the upward swing of the locking block 334. Then, the locking cylinder 335 drives the locking block 334 to swing upward, so that the locking block 334 is completely disengaged from the stepped slot 313 to complete the unlocking. The top plate lifting mechanism 34 can then drive the moving frame 332 to adjust the height.

[0043] See Figures 1 to 13 The working principle of this embodiment is explained by placing pallets when stacking ton bags:

[0044] After filling, the ton bag 5 is directly conveyed by the ton bag conveyor 1 to the middle position of the stacking frame 21. At this time, the clamping component 24 is at its lowest position. The longitudinal clamping plates 242 on both sides are driven by the push cylinder 244 to swing inward to clamp the ton bag 5. The horizontal support plate 243 is inserted horizontally into the bottom of the ton bag 5 from the two side gaps of the ton bag conveyor 1. At the same time, the pressure plate cylinder 26 drives the pressure plate 25 to descend vertically to press the top of the ton bag. The clamping lifting mechanism 22 drives the lifting frame 23 to rise vertically, lifting the ton bag 5 a short distance. At this time, the bottom of the ton bag 5 can flow into the pallet. The pallet conveyor 4 conveys the pallet into the ton bag conveyor 1. The lifting frame 23 drives the clamping component 24 to descend and place the ton bag 5 on the pallet before returning to the initial position.

[0045] When the rotating door 35 is open, the ton bag 5 with a tray is conveyed backward by the ton bag conveyor 1 to the middle position of the shaping frame 31. The top plate lifting mechanism 34 drives the top plate mechanism 33 to move downward to a height suitable for shaping a single layer of ton bags. The locking cylinder 335 drives the locking block 334 to rotate downward. The locking block 334 contacts the toothed positioning plate 312 and finally abuts and locks in the stepped locking groove 313. At the same time, the rotating cylinder 37 drives the rotating door 35 to close. After the swing stop block 38 swings, the rotating door 35 is locked to form a closed shaping area. The pressing cylinder 333 drives the top pressing plate 331 to descend vertically to squeeze the top of the bag. At the same time, the lower shaping plates 321 on the four sides move independently. The driving mechanism 322 drives them to move horizontally to squeeze the bag body. Together, they squeeze and shape the ton bag from five sides, expelling the air inside the ton bag 5, which is convenient for subsequent stacking of ton bags.

[0046] After shaping, the rotating door 35 opens, and the ton bag 5 with the tray continues to be conveyed to the waiting position. At this time, the second ton bag 5 is directly conveyed by the ton bag conveyor 1 to the middle position of the shaping frame 31, and the ton bag shaping steps of the previous step are repeated.

[0047] After the second ton bag 5 is shaped, it is conveyed forward by the ton bag conveyor 1 back to the middle position of the stacking frame 21. At this time, the clamping component 24 clamps the ton bag 5 and is driven to rise to the highest position by the top plate lifting mechanism 34.

[0048] The ton bag 5 with pallet in the waiting position is then conveyed forward by the ton bag conveyor 1 back to the stacking frame 21. The top plate lifting mechanism 34 places the ton bag 5, which has been raised to the highest position, on the ton bag below, completing the two-layer stacking of the ton bags.

[0049] After the ton bags 5 are stacked, the double-layer ton bags are moved backward by the ton bag conveyor 1 into the middle position of the shaping frame 31. At this time, the top plate lifting mechanism 34 has driven the top plate mechanism 33 to lift upward to a height suitable for shaping the double-layer ton bags, and locked by the locking unit. At the same time, the rotating door 35 is closed, and the rotating door 35 is locked by the swing stop block 38, thus re-establishing a closed shaping area. The downward pressure cylinder 333 drives the top pressure plate 331 to descend vertically and squeeze the top of the double-layer ton bags. At the same time, the eight shaping plates 321 on the four sides are driven by the drive mechanism 322 to squeeze the bag body, and together perform five-sided squeezing and shaping of the double-layer ton bags. After the shaping is completed, the rotating door 35 is opened, and the ton bag conveyor 1 moves backward off the line.

Claims

1. A ton bag stacking and shaping device, comprising a ton bag conveyor (1), a stacking device (2), and a shaping device (3), characterized in that: The shaping device (3) is located behind the stacking device (2). The ton bag conveyor (1) passes through the stacking device (2) and the shaping device (3) along the front and rear conveying direction. The stacking device (2) includes a stacking frame (21). The top of the stacking frame (21) is provided with a clamping lifting mechanism (22). The stacking frame (21) is provided with a lifting frame (23). The traction end of the clamping lifting mechanism (22) extends downward and connects to the upper end of the lifting frame (23). The lifting frame (23) is positioned on the left and right sides. A pair of clamping components (24) are symmetrically hinged. The clamping components (24) can swing to clamp the ton bag. The clamping lifting mechanism (22) can drive the lifting frame (23) to lift vertically. The shaping device (3) includes a shaping frame (31). Two sets of shaping units (32) are symmetrically arranged on the left and right sides of the shaping frame (31). The shaping unit (32) includes two sets of shaping plates (321) arranged vertically. Each set of shaping plates (321) has an independent driving mechanism (322) on its outer side. The driving mechanism (322) can... The shaping plate (321) is driven to move horizontally. The shaping frame (31) has rotating doors (35) at both its front and rear ends, which are rotatably connected to it. A shaping unit (32) is provided on the rotating door (35). The rotating door (35) can open and close in the front and rear directions. When the rotating door (35) is closed, it can be locked to the shaping frame (31). When the rotating door (35) is open, it can avoid the entry and exit of ton bag stacks. The shaping frame (31) has a top plate mechanism (33) on its upper part. The plate mechanism (33) is connected to the traction end of the top plate lifting mechanism (34) and is driven by the top plate lifting mechanism (34) to realize the lifting action. The top plate lifting mechanism (34) is set at the top of the shaping frame (31). The top plate mechanism (33) includes a top pressure plate (331) and a moving frame (332). The moving frame (332) is provided with a locking unit. The locking unit can lock the moving frame (332) at different height positions. The top pressure plate (331) can be lifted and lowered independently when the moving frame (332) is locked.

2. The ton bag stacking and shaping device according to claim 1, characterized in that: The clamping assembly (24) includes a four-bar linkage (241), a longitudinal clamping plate (242), and a transverse support plate (243). The upper end of the four-bar linkage (241) is hinged to the lifting frame (23). The longitudinal clamping plate (242) is provided on the inner side of the connecting rod of the four-bar linkage (241). The lower end of the horizontal connecting rod of the four-bar linkage (241) is provided with a transverse support plate (243). The four-bar linkage (241) is driven by a push cylinder (244) to realize its inward and outward swinging action. The cylinder body of the push cylinder (244) is hinged to the lifting frame (23). When the four-bar linkage (241) swings inward, the longitudinal clamping plate (242) can clamp the ton bag body, and the transverse support plate (243) can drag the bottom of the ton bag or clamp the lower part of the bag body.

3. A ton bag stacking and shaping device according to claim 1 or 2, characterized in that: A horizontally arranged pressure plate (25) is provided in the middle of a pair of clamping assemblies (24). The upper end of the pressure plate (25) is hinged to the cylinder rod of a vertically arranged pressure plate cylinder (26). The cylinder body of the pressure plate cylinder (26) is connected to the lifting frame (23). The pressure plate cylinder (26) drives the pressure plate (25) to rise and fall vertically.

4. The ton bag stacking and shaping device according to claim 1, characterized in that: Rotary cylinders (37) are respectively provided in the middle of the front and rear ends of the shaping frame (31). The cylinder rod of the rotary cylinder (37) is hinged to the middle of the revolving door (35). The rotary cylinder (37) drives the revolving door (35) to realize the opening and closing action.

5. The ton bag stacking and shaping device according to claim 4, characterized in that: A buffer frame (36) is provided on the outside of the shaping frame (31), near the rotating end of the rotating door (35) and on the outside of the ton bag conveyor (1). When the rotating door (35) is in the open state, its outer wall flexibly abuts against the buffer frame (36).

6. A ton bag stacking and shaping device according to claim 4 or 5, characterized in that: A swing stop block (38) that can swing horizontally back and forth is hinged to the shaping frame (31) near the free end of the revolving door (35). When the revolving door (35) is closed in place, the swing stop block (38) swings to its end face against the outer wall of the revolving door (35) to achieve a limit stop.

7. The ton bag stacking and shaping device according to claim 1, characterized in that: The upper four corners of the movable frame (332) are connected to the traction end of the top plate lifting mechanism (34). The movable frame (332) is driven by the top plate lifting mechanism (34) to move up and down along the vertical guide rail (311) on the shaping frame (31). A horizontally arranged top pressure plate (331) is provided in the lower middle part of the movable frame (332). The upper end of the top pressure plate (331) is hinged to the cylinder rod of a vertically arranged downward pressure cylinder (333). The cylinder body of the downward pressure cylinder (333) is connected to the movable frame (332). The downward pressure cylinder (333) drives the top pressure plate (331) to move vertically up and down.

8. A ton bag stacking and shaping device according to claim 1 or 7, characterized in that: Locking units are provided at the four corners of the side of the movable frame (332). Each locking unit includes a locking block (334). The middle part of the locking block (334) is hinged to the movable frame (332), and the upper part of the locking block (334) is hinged to the cylinder rod of the locking cylinder (335). The cylinder body of the locking cylinder (335) is hinged to the movable frame (332). A limiting block (336) is provided at the non-locking end of the locking block (334). The four corners of the outer side of the shaping frame (31) are provided with locking blocks (334). The toothed positioning plate (312) is designed to cooperate with the other side. Multiple sets of stepped positioning slots (313) are continuously opened along the height direction. The stepped positioning slots (313) at different heights correspond to different lowering and locking positions of the moving frame (332). The locking cylinder (335) drives the locking block (334) to rotate up and down around the hinge point. After rotating to the position, the locking end of the locking block (334) abuts against and is engaged in a set of stepped positioning slots (313), and the non-locking end abuts against the limiting block (336) to achieve positioning and locking.

9. The ton bag stacking and shaping device according to claim 1, characterized in that: The stacking device (2) is provided with a pallet conveyor (4) on its side. The conveying direction of the pallet conveyor (4) is perpendicular to the conveying direction of the ton bag conveyor (1). The pallet conveyor (4) inputs pallets into the ton bag conveyor (1) and / or outputs pallets from the ton bag conveyor (1).

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