PVC floor conveyor and automatic stacker crane discharging system

Abstract

The invention discloses a PVC floor conveyor and an automatic stacker crane discharging system, and relates to the technical field of PVC floor stacking. The device comprises a conveying line, the conveying line is provided with two rotating shafts, the device further comprises two first fixing frames and two second fixing frames, an overturning rod is rotationally arranged between the two first fixing frames, the two ends of the overturning rod are each sleeved with a connecting plate, a supporting roller is rotationally arranged between the two connecting plates, and the two ends of the overturning rod are each fixedly provided with a sliding block; the sliding blocks are in sliding connection with the first fixing frames, and limiting mechanisms are arranged in the first fixing frames. An abutting block is arranged at one end of each sliding block, and a second moving plate is arranged at the far end of each connecting plate; according to different shapes of the PVC floors, the stacking mode can be changed in a self-adaptive mode, automatic overturning can be achieved through gravity, meanwhile, the tray is moved, when the sheet PVC floors are moved to the two connecting plates, the two ends of the connecting plates are unlocked through the gravity of the floors, and the PVC floor stacking and discharging device is suitable for stacking and discharging the PVC floors of different shapes and higher in practicability.

Description

Technical Field

[0001] The invention relates to the technical field of PVC floor palletizing, and in particular to a PVC floor conveyor and an automatic palletizing machine unloading system. Background Art

[0002] PVC floor is a new type of lightweight floor decoration material that is very popular in the world today. Due to its smooth surface, waterproof, acid and alkali resistance, light weight and other excellent properties, it is an ideal synthetic material to replace wood, aluminum, and composite panels. It is widely used, such as homes, hospitals, schools, office buildings, factories, public places, supermarkets, businesses, and other places. "PVC floor" refers to the floor made of polyvinyl chloride materials. Specifically, it is made of polyvinyl chloride and its copolymer resin as the main raw materials, and is added with fillers, plasticizers, stabilizers, colorants and other auxiliary materials, and is produced through coating process or calendering, extrusion or extrusion process.

[0003] PVC flooring can be mainly divided into two types according to its shape and sheet material, and can be divided into adhesive-backed, lock-type, and self-sinking types according to its structural characteristics. The finished PVC flooring needs to be neatly stacked for subsequent processing steps or packaged sales. Existing roll-type PVC flooring is usually grabbed by a robot during palletizing, and then placed vertically on a pallet. The price of the robot is relatively high, which will greatly increase the production cost. For sheet-type PVC flooring, the pallet is usually placed under the conveyor line and the PVC floor falls onto the pallet by itself. This stacking method can easily cause the buckles of some PVC floors with buckles to deform, and no matter whether it is robot palletizing or gravity palletizing, the palletizing machine can only stack one of the rolls or sheets, which greatly limits the practicability of the palletizer. Summary of the invention

[0004] The object of the present invention is to provide a PVC floor conveyor and an automatic palletizer unloading system to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a PVC floor conveyor and an automatic palletizer unloading system, comprising a conveyor line, the conveyor line having two rotating shafts, and also comprising two first fixed frames and two second fixed frames, a flip rod is rotatably arranged between the two first fixed frames, a connecting plate is sleeved at both ends of the flip rod, a supporting roller is rotatably arranged between the two connecting plates, a slider is fixedly arranged at both ends of the flip rod, each of the sliders is slidably connected with each first fixed frame in a one-to-one correspondence, and a limiting mechanism is slidably arranged in each of the first fixed frames; an abutting block abutting the limiting mechanism is fixedly arranged at one end of each slider away from the flip rod, and a second movable plate is slidably arranged at one end of each connecting plate away from the flip rod.

[0006] Preferably, a friction roller is rotatably provided between the two first fixing frames, and a second friction wheel is rotatably provided at a section of each connecting plate close to the flip rod.

[0007] Preferably, a return spring is fixedly arranged between the two second friction wheels, and a first torsion spring is fixedly arranged between each of the connecting plates and the sliding block.

[0008] Preferably, the limiting mechanism comprises a first movable plate slidably arranged in each first fixed frame, a limiting plate is rotatably arranged on each first movable plate, and a second torsion spring is fixedly arranged between each limiting plate and each first movable plate in a one-to-one correspondence.

[0009] Preferably, a lower pressure frame is slidably provided on each of the connecting plates, a third spring is fixedly provided between the two ends of each lower pressure frame and the connecting plate, a lower pressure rod is fixedly provided on each of the lower pressure frames, a moving rod is fixedly provided on the end of each of the first movable plates away from the conveyor line, and a triangular block cooperating with the lower pressure rod is provided on each of the movable rods.

[0010] Preferably, a connecting tube is fixedly provided at one end of each connecting plate away from the flip plate, each second movable plate is slidably connected to each connecting tube, and a fourth spring is fixedly provided between each second movable plate and each connecting tube in a one-to-one correspondence.

[0011] Preferably, a discharge ramp and an air bag are fixedly provided at the bottom of each connecting plate.

[0012] Preferably, a first top plate is slidably disposed in each of the first fixing frames, and a first spring is fixedly disposed in each of the first top plates and the first fixing frames in a one-to-one correspondence, and a second top plate is slidably disposed in each of the second fixing frames, and a second spring is fixedly disposed between each of the second top plates and the second fixing frames in a one-to-one correspondence.

[0013] Preferably, it also includes two fixed guide rails, support plates are slidably arranged on the two guide rails, fixing rods are fixedly arranged on both sides of the support plates, vertical rods are slidably arranged on each of the fixing rods, and a push rod is fixedly arranged on one side of each connecting plate away from the support roller.

[0014] Preferably, a baffle is slidably disposed between the two connecting plates, and a connecting rod is fixedly disposed between the two second fixing frames.

[0015] In the above technical scheme, the present invention provides a PVC floor conveyor and an automatic stacker unloading system, which have the following beneficial effects: according to the different shapes of the coiled PVC floor and the sheet PVC floor, the floor can be unloaded and the stacking method can be adaptively changed; the coiled material can be automatically flipped by the gravity of the coiled material, and the pallet can be automatically moved under the baffle plate, which is convenient for unloading and saves production costs; when the sheet PVC floor moves to the two connecting plates, the two ends of the connecting plates are unlocked by the gravity of the floor itself, so that the floor can fall by itself, reducing the probability of damage to the PVC floor buckle; the PVC floor can be automatically unloaded according to the stacking height during the falling process, which is suitable for the stacking and unloading of PVC floors of different shapes, and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of the structure of a connecting plate provided in an embodiment of the present invention;

[0019] Figure 3 A schematic diagram of the structure of a vertical rod provided by an embodiment of the present invention;

[0020] Figure 4 A schematic diagram of the structure of a moving rod provided by an embodiment of the present invention;

[0021] Figure 5 A schematic diagram of the structure of a first spring provided in an embodiment of the present invention;

[0022] Figure 6 A schematic diagram of the structure of a second movable plate provided in an embodiment of the present invention;

[0023] Figure 7 The embodiment of the present invention provides Figure 2 A magnified view of the structure at center A;

[0024] Figure 8 The embodiment of the present invention provides Figure 4 A magnified view of the structure at point B.

[0025] Description of reference numerals:

[0026] 1. Conveyor line; 2. Rotating shaft; 3. First friction wheel; 4. Friction roller; 5. Second friction wheel; 6. Baffle; 7. Connecting rod; 10. First fixed frame; 11. First top plate; 12. First spring; 13. Second fixed frame; 14. Second top plate; 15. Second spring; 21. Turning rod; 211. Return spring; 22. Connecting plate; 221. Support roller; 222. Unloading inclined plate; 23. Unloading plate; 24. Cylinder; 25. Push rod; 26. Slider; 27. First torsion spring; 28. Abutment block; 29. ​​Airbag; 31. Down-pressure frame; 32. Third spring; 33. Down-pressure rod; 34. Triangular block; 35. Moving rod; 36. First moving plate; 37. Limiting plate; 38. Second torsion spring; 39. Connecting tube; 391. Second moving plate; 392. Fourth spring; 41. Guide rail; 42. Support plate; 43. Tray; 44. Fixing rod; 45. Fifth spring; 46. Vertical rod. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] See also Figure 1-8A PVC floor conveyor and an automatic palletizer unloading system, comprising a conveyor line 1, the conveyor line 1 having two rotating shafts 2, and also comprising two first fixed frames 10 and two second fixed frames 13, a flip rod 21 is rotatably arranged between the two first fixed frames 10, a connecting plate 22 is sleeved at both ends of the flip rod 21, a supporting roller 221 is rotatably arranged between the two connecting plates 22, a slider 26 is fixedly arranged at both ends of the flip rod 21, each slider 26 is slidably connected with each first fixed frame 10 in a one-to-one correspondence, and a limiting mechanism is slidably arranged in each first fixed frame 10; an abutting block 28 abutting against the limiting mechanism is fixedly arranged at one end of each slider 26 away from the flip rod 21, and each connecting plate 22 is slidably arranged at one end away from the flip rod 21 A second movable plate 391 is provided; the two connecting plates 22 can rotate and slide on the flip rod 21; the conveyor line 1, the first fixed frame 10, and the second fixed frame 13 are all arranged on a base (not marked in the figure); the two conveyor lines 1 and the first fixed frame 10 are fixedly arranged on the base; the two second fixed frames 13 are slidably arranged on the base; an elastic block (not marked in the figure) is fixedly arranged on the side of the two second fixed frames 13 away from the conveyor line 1; one end of the elastic block away from the second fixed frame 13 is fixedly connected to the base; when the two second fixed frames 13 move, the corresponding second fixed frames 13 can be restored to their original positions through the two elastic blocks; the two sliders 26 slide in the corresponding first fixed frames 10; and the two sliders 26 drive the flip rod while moving. 21 moves, thereby driving each supporting roller 221 to move up and down, each supporting roller 221 has the ability to retract, a baffle 6 is slidably arranged between the two connecting plates 22, and a through groove for the connecting plate 22 to slide up and down is opened on the first fixed frame 10 and the second fixed frame 13. In the initial state, each abutment block 28 is on the limiting mechanism, and each second movable plate 391 is mounted on the end of the through groove of the second fixed frame 13. The coiled PVC floor or the sheet PVC floor is conveyed through the conveyor line 1. When the conveyor line 1 conveys a coiled PVC floor, one end of the coil moves to each supporting roller 221 as the conveyor line 1 pushes it. As the coil moves, the end of the coil pushes the two second fixed frames 13 away from the first When the coil is completely moved to the support roller 221 between the two connecting plates 22, the second movable plate 391 is separated from the second fixed frame 13, and the end of each connecting plate 22 away from the first fixed frame 10 can rotate around the axis of the flip rod 21, so that the horizontal coil is rotated into a vertical state by gravity. When the two connecting plates 22 rotate, the pallet 43 for stacking PVC floor can be automatically moved. When the two connecting plates 22 are in a vertical state, the pallet 43 moves to the bottom of the coil. At this time, the coil is placed on the pallet 43, and the two connecting plates 22 return to a horizontal state.When the connecting plate 22 is restored to a horizontal state, the coils stacked on the pallet 43 and the pallet 43 are pushed to move away from the first fixed frame 10, thereby preventing the stacked coils from blocking the reset of the connecting plate 22. When the conveyor line 1 transports sheet PVC flooring, as the sheet PVC flooring falls on the two connecting plates 22 flush with the conveyor line 1, the gravity of the sheet PVC flooring moves the limiting mechanism toward the second fixed frame 13. At this time, the abutment block 28 is gradually separated from the limiting mechanism. At the same time, the movement of the limiting mechanism drives the second movable plate 391 to move toward the second fixed frame 13. When the abutment block 28 is completely separated from the limiting mechanism, the second movable plate 391 also moves into the through groove of the second fixed frame 13. At this time, both ends of the two connecting plates 22 move downward. , so that the PVC floor on the two connecting plates 22 moves down. When the two connecting plates 22 move down to the height of the pallet 43, the gravity of the PVC floor itself makes the connecting plates 22 contact with the pallet 43 or the stacked PVC floor. At this time, the two connecting plates 22 move to both sides, so that the middle PVC floor is placed on the pallet 43 to complete the stacking. When the PVC floor on the two connecting plates 22 is unloaded, the gravity of the two connecting plates 22 is greatly reduced, and then the two connecting plates 22 move upward to the original position. It should be noted that the length of the sheet PVC floor is greater than the distance between the two connecting plates 22, and the diameter of the coiled PVC floor is much smaller than the distance between the two connecting plates 22. The conveyor line 1 conveys the coiled PVC floor between the two connecting plates 22 and conveys the sheet PVC floor onto the two connecting plates 22.

[0029] Furthermore, a friction roller 4 is rotatably provided between the two first fixed frames 10, and a second friction wheel 5 is rotatably provided at a section of each connecting plate 22 close to the flip rod 21; first friction wheels 3 are provided at both ends of the rotating shaft 2 of the conveyor line 1 close to the flip rod 21, and the second friction wheel 5 and the first friction wheel 3 are both in contact with the friction roller 4. When the conveyor line 1 is running, the friction roller 4 is driven to rotate by the first friction wheel 3, and then the second friction wheel 5 is driven to rotate. When the sheet PVC floor is separated from the conveyor line 1, the second friction wheel 5 can still make it completely fall on the two connecting plates 22. When the two connecting plates 22 move down and abut against the tray 43 or the stacked sheet PVC floor, the two connecting plates 22 gradually separate to both sides, and the reset spring 211 is stretched. At this time, the sheet PVC floor between the two connecting plates 22 gradually falls on the tray 43. When the two connecting plates 22 are separated from the stacked sheet PVC floor, the reset spring 211 is used to restore the two connecting plates 22 to their initial state.

[0030] Specifically, a reset spring 211 is fixedly arranged between the two second friction wheels 5, and a first torsion spring 27 is fixedly arranged between each connecting plate 22 and the slider 26; the two sliders 26 are both retractable rectangular blocks. When the two connecting plates 22 move to both sides, the slider 26 contracts. When the two connecting plates 22 rotate away from one end of the flip rod 21, each first torsion spring 27 twists. When each rolled PVC floor is stacked on the pallet 43 from between the two connecting plates 22, the weight on the two connecting plates 22 is greatly reduced. At this time, the two connecting plates 22 are reset to the initial state by the first torsion spring 27.

[0031] In another embodiment of the present invention, the limiting mechanism includes a first movable plate 36 slidably arranged in each first fixed frame 10, and a limiting plate 37 is rotatably arranged on each first movable plate 36, and a second torsion spring 38 is fixedly arranged one by one between each limiting plate 37 and each first movable plate 36; each first movable plate 36 is provided with a protrusion (not shown in the figure) to prevent the limiting plate 37 from rotating downward. In the initial state, the abutment block 28 abuts against the corresponding limiting plate 37, and the slider 26 will not slide downward in the first fixed frame 10. When the rolled PVC floor pushes the two second fixed frames 13 away, the two abutment blocks 28 are still in contact with the corresponding limiting plates 37, so that only a section of the two connecting plates 22 away from the flip rod 21 can rotate. When the sheet PVC floor falls on the two connecting plates 2 2, the two connecting plates 22 are squeezed by the gravity of the sheet PVC floor, so that the two first movable plates 36 move in the direction close to the second fixed frame 13, and when the ends of the two first movable plates 36 are separated from the abutting blocks 28, each abutting block 28, the slider 26 and the flip rod 21 will move downward, so as to gradually stack the sheet PVC floor on the tray 43, and when the abutting blocks 28 are separated from the first movable plates 36, the first movable plates 36 return to the initial position, and when the sheet PVC floor on the two connecting plates 22 is completed, the two connecting plates 22 move upward, and when the two abutting blocks 28 abut against the limiting plate 37, the limiting plate 37 can be lifted up, so that each abutting block 28 returns to the limiting plate 37 again, and the lifted limiting plate 37 can be quickly restored to its original position by the second torsion spring 38.

[0032] Specifically, each connecting plate 22 is slidably provided with a lower pressure frame 31, and a third spring 32 is fixedly provided between the two ends of each lower pressure frame 31 and the connecting plate 22, and a lower pressure rod 33 is fixedly provided on each lower pressure frame 31, and a moving rod 35 is fixedly provided at one end of each first movable plate 36 away from the conveyor line 1, and each moving rod 35 is provided with a triangular block 34 that cooperates with the lower pressure rod 33; when the sheet PVC floor falls from the conveyor line 1, it first abuts against the lower pressure frame 31. At this time, the gravity of the sheet PVC floor presses down each lower pressure frame 31. When the lower pressure frame 31 moves downward, the lower pressure rod 33 squeezes the inclined surface of the triangular block 34, so that the triangular block 34 drives the first movable plate 36 to move in the direction away from the conveyor line 1 through the moving rod 35, thereby facilitating the flip rod 21 to connect the sheet PVC floor and move downward together, and each connecting plate 22 is provided with a groove, the width of the sheet PVC floor is less than the length of the groove, and each lower pressure frame 31 is in the corresponding groove.

[0033] Furthermore, a connecting tube 39 is fixedly provided at one end of each connecting plate 22 away from the flip plate, and each second movable plate 391 is slidably connected to each connecting tube 39, and a fourth spring 392 is fixedly provided between each second movable plate 391 and each connecting tube 39 in a one-to-one correspondence; in the initial state, a portion of the second movable plate 391 is located above the through slot of the second fixed frame 13, and the other portion is located on the outer wall of the second fixed frame 13. At this time, the abutment between the second movable plate 391 and the second fixed frame 13 prevents the end of the connecting plate 22 from moving downward. When the sheet PVC floor extrusion triangle block 34 moves, the second movable plate 391 is pushed to move in the direction away from the first fixed frame 10 by the moving rod 35. When the sheet PVC floor completely falls on the connecting plate 22, the moving rod 35 pushes the second movable plate 391 completely into the through slot of the second fixed frame 13, and both ends of the connecting plate 22 can move downward, so that the PVC floor on the two connecting plates 22 moves down to the pallet 43, thereby completing the stacking.

[0034] Furthermore, each connecting plate 22 is fixedly provided with a discharging inclined plate 222 and an air bag 29 at the bottom; when the two connecting plates 22 move downward, the discharging inclined plate 222 abuts against the pallet 43 or the stacked PVC floor, and each discharging inclined plate 222 has a certain inclination angle. When the discharging inclined plate 222 abuts against the stacked PVC floor, the discharging inclined plate 222 will drive the two connecting plates 22 to move to both sides, thereby placing the PVC floor between the two connecting plates 22 on the pallet 43, and one end of the air bag 29 is fixedly connected to the corresponding connecting plate 22. A square plate cooperating with the air bag 29 is fixedly provided on each first fixing frame 10. When the end of the two connecting plates 22 away from the first fixing frame 10 rotates downward, the end of the air bag 29 away from the connecting plate 22 abuts against the square plate, and the air bag 29 has an air outlet, through which the air in the air bag 29 can be slowly discharged, thereby reducing the rotation speed of the end of the connecting plate 22 and maintaining the stability of the rolled PVC floor on the support roller 221.

[0035] Specifically, a first top plate 11 is slidably arranged in each first fixing frame 10, and a first spring 12 is fixedly arranged in each first top plate 11 and each first fixing frame 10 in a one-to-one correspondence, and a second top plate 14 is slidably arranged in each second fixing frame 13, and a second spring 15 is fixedly arranged between each second top plate 14 and the second fixing frame 13 in a one-to-one correspondence; when the sheet PVC floor moves onto the two connecting plates 22, the weight of the two connecting plates 22 is greatly increased, and at this time the two connecting plates 22 move downward accordingly, and each first spring 12 and the second spring 15 are compressed, and when the sheet PVC floor on the two connecting plates 22 is completed, each first spring 12 and the second spring 15 are restored to their original state, and at this time the two connecting plates 22 also move upward to their initial positions.

[0036] In another embodiment of the present invention, it also includes two fixed guide rails 41, on which support plates 42 are slidably arranged, and fixed rods 44 are fixedly arranged on both sides of the support plates 42, and vertical rods 46 are slidably arranged on each fixed rod 44, and a push rod 25 is fixedly arranged on the side of each connecting plate 22 away from the support roller 221; the support plate 42 is used to place a tray 43, and when the sheet PVC floor is transported on the conveyor line 1, the support plate 42 is moved to the bottom of the two lower pressing frames 31, and when the sheet PVC floor moves down When the two material discharging inclined plates 222 abut against the pallet 43, the PVC floor on the two lower pressing frames 31 is placed on the pallet 43. When the PVC floor in roll form is transported on the conveyor line 1, the movable frame connected to the pallet 43 is pushed to the second fixed frame 13. At this time, each vertical rod 46 is between the first fixed frame 10 and the second fixed frame 13. When the ends of the two connecting plates 22 rotate downward, each fixed rod 44 abuts against the corresponding push rod 25, and the push rod 25 pushes the fixed rod 44 forward, thereby driving the support plate 42 When the tray 43 moves forward, the support plate 42 moves forward through the rolled PVC floor on the tray 43 and the PVC floor between the two connecting plates 22, so that the PVC floor is stacked on the tray 43 in sequence, and the connecting plate 22 is turned over by the gravity of the rolled PVC floor, and the tray 43 is driven to move automatically at the same time. When the rolled PVC floor on the connecting plate 22 is stacked on the tray 43, the two connecting plates 22 are driven to rotate by the first torsion spring 27. When the connecting plate 22 rotates, the rolled PVC floor on the tray 43 and the tray 43 and the support plate 42 are pushed to move in the direction away from the first fixed frame 10, so that the connecting plate 22 will not collide with the stacked PVC floor when it rotates downward, and a fifth spring 45 is fixedly provided between one end of each fixing rod 44 close to the first fixed frame 10 and the vertical rod 46 in a one-to-one correspondence. When the support plate 42 and the tray 43 move, the fifth spring 45 makes the stacked rolled PVC floor tightly abut against the PVC floor between the two connecting plates 22, thereby increasing the stability of the PVC floor stacking.

[0037] Specifically, a baffle 6 is slidably arranged between the two connecting plates 22, and a connecting rod 7 is fixedly arranged between the two second fixing frames 13; the baffle 6 is used to prevent the rolled PVC floor from falling from between the two connecting plates 22, and a cylinder 24 is fixedly arranged between the two connecting plates 22, and a blanking plate 23 is fixedly arranged at the end of the cylinder 24. When the two connecting plates 22 are in a vertical state, the pallet 43 moves to the bottom of the two connecting plates 22. At this time, by starting the cylinder 24, the cylinder 24 pushes the rolled PVC floor from the baffle 6 to the pallet 43 through the blanking plate 23 to complete the stacking. The distance between the first fixing frame 10 and the second fixing frame 13 is the length of the connecting plate 22. When the rolled PVC floor is When the PVC floor moves from the conveyor line 1 to between the two connecting plates 22, the rolled PVC floor will first abut against the connecting rod 7. During the movement, the rolled PVC floor pushes the two second fixing frames 13 to separate from the second movable plate 391 through the connecting plate 22, so that the rolled PVC floor can be flipped from a horizontal state to a vertical state. When the two connecting plates 22 rotate from a vertical state to a horizontal state, the corresponding second fixing frames 13 are pushed to move through the two connecting tubes 39. When the second movable plate 391 moves to the top of the corresponding second fixing frame 13 through groove again, the second fixing frame 13 moves, and each connecting tube 39 is again inserted into the corresponding second fixing frame 13.

[0038] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A PVC floor conveyor and an automatic palletizer unloading system, comprising a conveyor line (1), wherein the conveyor line (1) has two rotating shafts (2), characterized in that: It also comprises two first fixed frames (10) and two second fixed frames (13), a flip rod (21) is rotatably arranged between the two first fixed frames (10), a connecting plate (22) is sleeved at both ends of the flip rod (21), a supporting roller (221) is rotatably arranged between the two connecting plates (22), a sliding block (26) is fixedly arranged at both ends of the flip rod (21), each of the sliding blocks (26) is slidably connected to each of the first fixed frames (10) in a one-to-one correspondence, and a limiting mechanism is slidably arranged in each of the first fixed frames (10); An abutment block (28) abutting against a limiting mechanism is fixedly provided at one end of each slider (26) away from the flip rod (21), and a second movable plate (391) is slidably provided at one end of each connecting plate (22) away from the flip rod (21).

2. A PVC floor conveyor and automatic palletizer unloading system according to claim 1, characterized in that: A friction roller (4) is rotatably disposed between the two first fixing frames (10), and a second friction wheel (5) is rotatably disposed on a section of each connecting plate (22) close to the flip rod (21).

3. A PVC floor conveyor and automatic palletizer unloading system according to claim 2, characterized in that: A return spring (211) is fixedly arranged between the two second friction wheels (5), and a first torsion spring (27) is fixedly arranged between each of the connecting plates (22) and the sliding block (26).

4. A PVC floor conveyor and automatic palletizer unloading system according to claim 3, characterized in that: The limiting mechanism comprises a first movable plate (36) slidably arranged in each first fixed frame (10), a limiting plate (37) rotatably arranged on each first movable plate (36), and a second torsion spring (38) is fixedly arranged between each limiting plate (37) and each first movable plate (36) in a one-to-one correspondence.

5. A PVC floor conveyor and automatic palletizer unloading system according to claim 4, characterized in that: A lower pressure frame (31) is slidably arranged on each of the connecting plates (22), a third spring (32) is fixedly arranged between the two ends of each of the lower pressure frames (31) and the connecting plates (22), a lower pressure rod (33) is fixedly arranged on each of the lower pressure frames (31), a moving rod (35) is fixedly arranged at one end of each of the first movable plates (36) away from the conveyor line (1), and a triangular block (34) cooperating with the lower pressure rod (33) is arranged on each of the moving rods (35).

6. A PVC floor conveyor and automatic palletizer unloading system according to claim 5, characterized in that: A connecting tube (39) is fixedly provided at one end of each connecting plate (22) away from the flip plate, each second movable plate (391) is slidably connected to each connecting tube (39), and a fourth spring (392) is fixedly provided between each second movable plate (391) and each connecting tube (39) in a one-to-one correspondence.

7. A PVC floor conveyor and automatic palletizer unloading system according to claim 6, characterized in that: A material discharge inclined plate (222) and an air bag (29) are fixedly arranged at the bottom of each connecting plate (22).

8. A PVC floor conveyor and automatic palletizer unloading system according to claim 7, characterized in that: A first top plate (11) is slidably disposed in each of the first fixing frames (10), and a first spring (12) is fixedly disposed in each of the first top plates (11) and each of the first fixing frames (10) in a one-to-one correspondence; a second top plate (14) is slidably disposed in each of the second fixing frames (13), and a second spring (15) is fixedly disposed between each of the second top plates (14) and the second fixing frames (13) in a one-to-one correspondence.

9. A PVC floor conveyor and automatic palletizer unloading system according to claim 8, characterized in that: It also comprises two fixed guide rails (41), support plates (42) are slidably arranged on the two guide rails (41), fixed rods (44) are fixedly arranged on both sides of the support plates (42), vertical rods (46) are slidably arranged on each of the fixed rods (44), and a push rod (25) is fixedly arranged on one side of each connecting plate (22) away from the support roller (221).

10. A PVC floor conveyor and automatic palletizer unloading system according to claim 9, characterized in that: A baffle (6) is slidably disposed between the two connecting plates (22), and a connecting rod (7) is fixedly disposed between the two second fixing frames (13).

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