Cardboard palletizing equipment with alignment function

Abstract

The present invention relates to the technical field of cardboard conveying and palletizing, and in particular to a cardboard palletizing device with an alignment function, comprising a base plate, a vertical electric guide rail, a horizontal electric guide rail, a mounting frame, and a feed conveyor. Two vertical electric guide rails are mounted on both the front and rear sides of the top of the base plate. Horizontal electric guide rails are mounted on the sliders of the two vertical electric guide rails on the front side and the sliders of the two vertical electric guide rails on the rear side. A mounting frame is connected between the sliders of the two horizontal electric guide rails, and a feed conveyor is mounted on the top of the mounting frame. The present invention can transport cardboard to the right through the feed conveyor and transport the cardboard to the palletizing conveyor for palletizing. The cardboard on the palletizing conveyor can be pushed by a push plate to align the cardboard on the palletizing conveyor, thereby preventing the cardboard on the palletizing conveyor from skewing and thus preventing the cardboard on the palletizing conveyor from collapsing.

Description

Technical Field

[0001] The present invention relates to the technical field of cardboard conveying and palletizing, and in particular to a cardboard palletizing device with an alignment function. Background Art

[0002] In the field of industrial automation, cardboard palletizing technology is a widely used technical means, mainly used to stack the cardboard produced on the production line in an orderly manner for subsequent packaging, transportation and storage.

[0003] The traditional cardboard palletizing process is usually as follows: first, the cardboard on the production line is transported to the placement table or directly to the palletizing conveyor belt via a conveyor belt; then, the cardboard is gradually stacked into stacks through the lifting function of the conveyor belt.

[0004] However, in actual application, the traditional cardboard palletizing process has many technical problems. The most significant problem is that the cardboard is easily misaligned during the palletizing process, which leads to the skew of the entire pallet.

[0005] The specific process is as follows: When the cardboard is transported to the placement table or stacking conveyor belt via the conveyor belt, the cardboard may be displaced or rotated due to factors such as the speed of the conveyor belt, the shape of the cardboard itself, and the material properties. This displacement or rotation may not be obvious on a single cardboard, but as the stacking height increases, these tiny errors will gradually accumulate, eventually leading to serious skewness of the entire stack, which not only affects the quality of the stacking, but may also cause the stack to collapse. Summary of the Invention

[0006] In view of this, the present invention provides a cardboard palletizing device with an alignment function, which can overcome the influence of factors such as the speed of the conveyor belt, the shape of the cardboard itself and the material properties. The cardboard may be displaced or rotated, and these tiny errors will gradually accumulate, eventually leading to serious skewness of the entire stack, which not only affects the quality of palletizing, but may also cause the stack to collapse.

[0007] Technical solution: A cardboard palletizing equipment with an alignment function, including a base plate, a vertical electric guide rail, a horizontal electric guide rail, a mounting frame, a feeding conveyor, a mounting plate, a palletizing conveyor, an alignment mechanism and a limiting mechanism. Two vertical electric guide rails are installed on the front and rear sides of the top of the base plate. The sliders of the two vertical electric guide rails on the front side and the sliders of the two vertical electric guide rails on the rear side are both installed with horizontal electric guide rails. A mounting frame is connected between the sliders of the two horizontal electric guide rails. A feeding conveyor is installed on the top of the mounting frame. Mounting plates are connected on the front and rear sides of the top of the base plate. A palletizing conveyor is installed between the two mounting plates. The feeding conveyor is used to transport the cardboard to the palletizing conveyor for palletizing. The alignment mechanism is used to align the cardboard, and the limiting mechanism is used to limit the cardboard.

[0008] In addition, it is particularly preferred that the alignment mechanism includes a guide plate, a slide rod, a push plate, a connecting plate, a spring and a pushing assembly, the top of the horizontal electric guide rail is connected to a guide plate, the guide plate is slidably connected to the slide rod, the end of the slide rod facing the stacking conveyor is connected to the push plate, the end of the slide rod away from the stacking conveyor is connected to the connecting plate, a spring is connected between the guide plate and the connecting plate, and the pushing assembly is used to push the connecting plate to move the push plate, and the push plate will push the cardboard to align the cardboard.

[0009] In addition, it is particularly preferred that the pushing assembly includes a trapezoidal contact block, a connecting frame and a trapezoidal push block, the trapezoidal contact blocks are connected to the connecting plates, the tops of the sliders of the horizontal electric guide rails are connected to the connecting frames, and the connecting frames are connected to the trapezoidal push blocks. The trapezoidal push blocks will contact the trapezoidal contact blocks during the process of moving to the right, and push the trapezoidal contact blocks to move the push plate, and the push plate will push the cardboard to align the cardboard.

[0010] In addition, it is particularly preferred that the limiting mechanism includes a limiting plate and a limiting block, a limiting plate for limiting the cardboard is connected between the two vertical electric guide rails, and a limiting block for limiting the cardboard is connected to the mounting frame.

[0011] In addition, it is particularly preferred that a pressing mechanism is also included, which includes a lifting plate, a lifting rod, a pressure plate and a second spring. The limiting plate is connected to the lifting plate, the lifting plate is connected to the lifting rod, and the lifting rod is slidably connected to a pressure plate for pressing the stacked cardboard. The lifting rod is connected to a second spring, and the second spring is connected to the pressure plate.

[0012] In addition, it is particularly preferred that a fixed baffle is further included, and the top of the mounting plate is connected to a fixed baffle for blocking the stacked cardboards.

[0013] In addition, it is particularly preferred that a blocking mechanism is also included, which includes a guide rod, a movable baffle, three springs and a removal component. The fixed baffles are connected to the guide rods, and the guide rods are slidably connected to the movable baffles for blocking the stacked cardboards. Three springs are connected between the fixed baffles and the movable baffles. The removal component is used to move the movable baffle away so that the movable baffle no longer blocks the stacked cardboards.

[0014] In addition, it is particularly preferred that the removal assembly includes a mounting block, a wedge-shaped contact block, a connecting block and a wedge-shaped push block, the movable baffle is connected to the mounting block, the mounting block is connected to the wedge-shaped contact block, the lifting plate is connected to the connecting block, and the connecting block is connected to the wedge-shaped push block, and the wedge-shaped push block will contact the wedge-shaped contact block during the upward movement and push the wedge-shaped contact block to move the movable baffle so that the movable baffle no longer blocks the stacked cardboard.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The present invention can transport cardboard to the right through the feeding conveyor and transport the cardboard to the stacking conveyor for stacking. The cardboard on the stacking conveyor can be pushed by the push plate to align the cardboard on the stacking conveyor to prevent the cardboard on the stacking conveyor from being skewed, thereby preventing the cardboard on the stacking conveyor from collapsing.

[0017] 2. Spring 2 can push the pressing plate downward to press the stacked cardboard, making the stacked cardboard flatter and compacting the stacked cardboard, reducing the gaps between layers of cardboard and preventing the stacked cardboard from slipping.

[0018] 3. The fixed baffle can block the stacked cardboard to prevent it from sliding back and forth during the pressing process. The movable baffle can block the stacked cardboard to prevent it from sliding to the right during the pressing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the horizontal electric guide rail, mounting frame and feeding conveyor of the present invention.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the alignment mechanism and the limiting mechanism of the present invention.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the alignment mechanism of the present invention.

[0023] Figure 5 It is a cross-sectional view of the guide plate of the present invention.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the pressing mechanism of the present invention.

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the blocking mechanism of the present invention.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the guide rod, movable baffle and spring of the present invention.

[0027] In the figure: 1. Base plate, 2. Vertical electric guide rail, 3. Horizontal electric guide rail, 4. Mounting frame, 5. Feeding conveyor, 6. Mounting plate, 7. Palletizing conveyor, 81. Guide plate, 82. Slide rod, 83. Push plate, 84. Connecting plate, 85. Spring one, 86. Trapezoidal contact block, 87. Connecting frame, 88. Trapezoidal push block, 91. Limit plate, 92. Limit block, 101. Lifting plate, 102. Lifting rod, 103. Pressing plate, 104. Spring two, 11. Fixed baffle, 121. Guide rod, 122. Movable baffle, 123. Spring three, 124. Mounting block, 125. Wedge-shaped contact block, 126. Connecting block, 127. Wedge-shaped push block. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0029] See also Figure 1-Figure 5 , a cardboard stacking device with an alignment function includes a base plate 1, a vertical electric guide rail 2, a horizontal electric guide rail 3, a mounting frame 4, a feeding conveyor 5, a mounting plate 6, a stacking conveyor 7, an alignment mechanism and a limiting mechanism. The vertical electric guide rails 2 are symmetrically installed on the front and rear sides of the top of the base plate 1 by bolts. The sliders of the two vertical electric guide rails 2 on the front side and the sliders of the two vertical electric guide rails 2 on the rear side are both installed with horizontal electric guide rails 3 by bolts. The mounting frame 4 is connected by bolts between the sliders of the two horizontal electric guide rails 3. The mounting frame 4 is driven by the two horizontal electric guide rails 3 to prevent the mounting frame 4 from tilting. The feeding conveyor 5 is evenly spaced and installed with bolts on the top of the mounting frame 4. The front and rear sides of the top of the base plate 1 are both connected with mounting plates 6 by bolts. A stacking conveyor 7 is installed between the two mounting plates 6 by bolts. The feeding conveyor 5 is used to transport the cardboards to the stacking conveyor 7 for stacking. The alignment mechanism is used to align the cardboards, and the limiting mechanism is used to limit the cardboards.

[0030] See also Figure 3-Figure 5The alignment mechanism includes a guide plate 81, a slide bar 82, a push plate 83, a connecting plate 84, a spring 85 and a pushing assembly. The right side of the top of the horizontal electric guide rail 3 is connected to the guide plate 81 by bolts. The left and right sides of the guide plate 81 are symmetrically connected to the slide bar 82 for sliding movement up and down. The four slide bars 82 are connected to the push plate 83 at one end facing the stacking conveyor 7. The push plate 83 is guided by the four slide bars 82 to improve the stability of the push plate 83. The four slide bars 82 are connected to the connecting plate 84 at one end away from the stacking conveyor 7. The slide bars 82 are each provided with a spring 85. The two ends of the spring 85 are respectively connected to the guide plate 81 and the connecting plate 84. The spring 85 is mounted on the slide bar 82 to prevent the spring 85 from bending. The pushing assembly is used to push the connecting plate 84 to move the push plate 83. The push plate 83 will push the cardboard to align the cardboard.

[0031] See also Figure 3 and Figure 4 The pushing assembly includes a trapezoidal contact block 86, a connecting frame 87 and a trapezoidal pushing block 88. The two connecting plates 84 are connected to the trapezoidal contact block 86 on the side away from each other by bolts. The left and right sides of the trapezoidal contact block 86 are both inclined surfaces. The top of the slider of the horizontal electric guide rail 3 is connected to the connecting frame 87 by bolts. The two connecting frames 87 are connected to the trapezoidal pushing block 88 on the side close to each other by bolts. The left and right sides of the trapezoidal pushing block 88 are both inclined surfaces. When the trapezoidal pushing block 88 moves to the right, the inclined surface on the right side of the trapezoidal pushing block 88 will contact the inclined surface on the left side of the trapezoidal contact block 86.

[0032] See also Figure 3 The limiting mechanism includes a limiting plate 91 and a limiting block 92. The right side of the two vertical electric guide rails 2 is connected with a limiting plate 91 by bolts, and the right side of the mounting frame 4 is evenly spaced and connected with three limiting blocks 92 by bolts.

[0033] The cardboard on the production line falls onto the feeding conveyor 5, and then the horizontal electric guide rail 3 is controlled to drive the mounting frame 4 and the feeding conveyor 5 to move to the right, and the feeding conveyor 5 is moved to the top of the stacking conveyor 7. Then the feeding conveyor 5 transports the cardboard to the right, and transports the cardboard to the stacking conveyor 7 for stacking. Then the horizontal electric guide rail 3 is controlled to drive the mounting frame 4 and the feeding conveyor 5 to move to the left and reset. Then the feeding conveyor 5 transports the cardboard to the right again, and transports the cardboard to the stacking conveyor 7. This cardboard will fall to the left of the previous cardboard, and the two cardboards will be flush, and then After that, the vertical electric guide rail 2 is controlled to drive the horizontal electric guide rail 3 to move upward, and the horizontal electric guide rail 3 drives the mounting frame 4 to move upward, and the mounting frame 4 drives the feeding conveyor 5 to move upward, so that the height of the feeding conveyor 5 is higher than the cardboard on the stacking conveyor 7, to avoid the feeding conveyor 5 colliding with the cardboard on the stacking conveyor 7 when moving to the right, and repeat the above operation to continue stacking. The limit plate 91 and the limit block 92 can limit the cardboard on the stacking conveyor 7 to avoid the position of the cardboard on the stacking conveyor 7 from shifting. The horizontal electric guide rail 3 drives the feeding conveyor 5 to move upward, so that the height of the feeding conveyor 5 is higher than the cardboard on the stacking conveyor 7, and the feeding conveyor 5 does not collide with the cardboard on the stacking conveyor 7 when moving to the right. When the conveyor 5 moves to the right, the connecting frame 87 and the trapezoidal push block 88 will also move to the right, and the inclined surface on the right side of the trapezoidal push block 88 will contact the inclined surface on the left side of the trapezoidal contact block 86, so that the trapezoidal push block 88 will push the trapezoidal contact block 86 to move the trapezoidal contact block 86 toward the direction of the stacking conveyor 7, thereby enabling the push plate 83 to move toward the direction of the stacking conveyor 7, and the push plate 83 will push the cardboard on the stacking conveyor 7 to align the cardboard on the stacking conveyor 7 to avoid the cardboard on the stacking conveyor 7 from being skewed, thereby avoiding the stacking conveyor 7 from being skewed. When the cardboard on 7 collapses and the spring 1 85 is compressed, the horizontal electric guide rail 3 drives the feeding conveyor 5 to move to the left, the connecting frame 87 and the trapezoidal push block 88 also move to the left, and the inclined surface on the right side of the trapezoidal push block 88 is out of contact with the inclined surface on the left side of the trapezoidal contact block 86. Under the action of the spring 1 85, the push plate 83 moves away from the stacking conveyor 7. In the process of stacking the cardboards, the horizontal electric guide rail 3 gradually moves upward, and the horizontal electric guide rail 3 drives the push plate 83 to move gradually upward, so that the push plate 83 can always align the cardboards.

[0034] See also Figure 6, also includes a pressing mechanism, the pressing mechanism includes a lifting plate 101, a lifting rod 102, a pressure plate 103 and a second spring 104, the front and rear sides of the right side of the limit plate 91 are connected to the lifting plate 101 by bolts, the left and right sides of the top of the lifting plate 101 are connected to the lifting rod 102, and the four lifting rods 102 are jointly slidably connected to the pressure plate 103. The four lifting rods 102 jointly guide the pressure plate 103 to improve the stability of the pressure plate 103, and the lifting rods 102 are each provided with a second spring 104, and the two ends of the second spring 104 are respectively connected to the lifting rod 102 and the pressure plate 103. The second spring 104 is sleeved on the lifting rod 102 to prevent the second spring 104 from bending.

[0035] See also Figure 6 , also includes a fixed baffle 11, and the middle of the top of the mounting plate 6 is connected to the fixed baffle 11 by bolts.

[0036] Initially, the bottom of the pressing plate 103 contacts the top of the fixed baffle 11, and the second spring 104 is in a compressed state; in the process of stacking the cardboards, the horizontal electric guide rail 3 will gradually move upward, and the horizontal electric guide rail 3 will drive the limit plate 91 to move gradually upward, so that the limit plate 91 can always limit the cardboard. After the cardboard stacking is completed, the vertical electric guide rail 2 is controlled to drive the horizontal electric guide rail 3 to move upward, and the horizontal electric guide rail 3 drives the limit plate 91 to move upward, so that the height of the limit plate 91 is higher than the cardboard after stacking. At the same time, the upward movement of the limit plate 91 will drive the lifting plate 101 and the lifting rod 102 to move upward, and the second spring 104 will gradually return to its original state. After the second spring 104 is completely restored to its original state, the second spring 104 will drive the pressing plate 103 to move upward, and then the stacking conveyor 7 transports the stacked cardboard to the right, and transports the stacked cardboard to the bottom of the pressing plate 103, and the fixed baffle 11 can block the stacked cardboard. When the pressing plate 103 moves downward and contacts the stacked cardboard, the pressing plate 103 stops moving downward, and the lifting rod 102 continues to move downward, and the spring 2 104 is compressed. The spring 2 104 in the compressed state will push the pressing plate 103 downward, so that the pressing plate 103 presses the stacked cardboard, making the stacked cardboard flatter and compacting the stacked cardboard, reducing the gap between each layer of cardboard, and preventing the stacked cardboard from slipping. Then, the next round of palletizing is carried out, and the horizontal electric guide rail 3 moves upward again, and the pressing plate 103 will also move upward. The pressing plate 103 no longer presses the stacked cardboard, so that the stacking conveyor 7 can transport the stacked cardboard to the right.

[0037] See also Figure 7 and Figure 8 , also includes a blocking mechanism, the blocking mechanism includes a guide rod 121, a movable baffle 122, a spring three 123 and a removal assembly, the two fixed baffles 11 are connected to the side away from each other with two guide rods 121, the two guide rods 121 are arranged relatively up and down, and the two guide rods 121 are jointly slidably connected with the movable baffle 122, and the movable baffle 122 is guided by the two guide rods 121 to improve the stability of the movable baffle 122, and the guide rods 121 are each provided with a spring three 123, and the two ends of the spring three 123 are respectively connected to the fixed baffle 11 and the movable baffle 122, and the spring three 123 is sleeved on the guide rod 121 to prevent the spring three 123 from bending, and the removal assembly is used to move the movable baffle 122 away so that the movable baffle 122 no longer blocks the stacked cardboard.

[0038] See also Figure 7 The removal assembly includes a mounting block 124, a wedge-shaped contact block 125, a connecting block 126 and a wedge-shaped push block 127. The upper parts of the two movable baffles 122 that are away from each other are connected to the mounting block 124 by bolts, and the tops of the mounting blocks 124 are connected to the wedge-shaped contact blocks 125 by bolts. The bottom of the wedge contact block 125 is an inclined surface. The right side of the bottom of the lifting plate 101 is connected to the connecting block 126 by bolts, and the sides of the two connecting blocks 126 that are away from each other are connected to the wedge-shaped push block 127 by bolts. The top of the wedge push block 127 is an inclined surface. When the wedge push block 127 moves upward, the inclined surface of the top of the wedge push block 127 will contact the inclined surface of the bottom of the wedge contact block 125.

[0039] When the lifting plate 101 moves upward, it drives the connecting block 126 and the wedge-shaped pushing block 127 to move upward. The inclined surface of the top of the wedge-shaped pushing block 127 contacts the inclined surface of the bottom of the wedge-shaped contact block 125, so that the wedge-shaped pushing block 127 can push the wedge-shaped contact block 125, so that the two wedge-shaped contact blocks 125 move away from each other, thereby enabling the two movable baffles 122 to move away from each other, and moving the movable baffles 122 away so that the movable baffles 122 do not block the compacted cardboard, so that the stacking conveyor 7 can deliver the compacted cardboard. 23 stretching, when the stacking conveyor 7 transports the compacted cardboard to the right, the next batch of stacked cardboard will also be transported to the bottom of the pressing plate 103. When the lifting plate 101 moves downward, it will drive the connecting block 126 and the wedge-shaped pushing block 127 to move downward. The inclined surface at the top of the wedge-shaped pushing block 127 and the inclined surface at the bottom of the wedge-shaped contact block 125 are out of contact. Under the action of the spring three 123, the two movable baffles 122 move towards each other. The movable baffles 122 can block the stacked cardboard to prevent the stacked cardboard from sliding to the right during the pressing process.

[0040] The above description is merely an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention are intended to be included within the scope of protection of the present invention. Any content not elaborated in detail herein is already known to those skilled in the art.

Claims

1. A cardboard stacking device with an alignment function, comprising a bottom plate (1), characterized in that: It also includes a vertical electric guide rail (2), a horizontal electric guide rail (3), a mounting frame (4), a feeding conveyor (5), a mounting plate (6), a stacking conveyor (7), an alignment mechanism and a limiting mechanism. Two vertical electric guide rails (2) are installed on both the front and rear sides of the top of the bottom plate (1). The sliders of the two vertical electric guide rails (2) on the front side and the sliders of the two vertical electric guide rails (2) on the rear side are both installed with horizontal electric guide rails (3). A mounting frame (4) is connected between the sliders of the two horizontal electric guide rails (3). A feeding conveyor (5) is installed on the top of the mounting frame (4). The front and rear sides of the top of the bottom plate (1) are connected to the mounting plate (6). A stacking conveyor (7) is installed between the two mounting plates (6). The feeding conveyor (5) is used to transport cardboard to the stacking conveyor (7) for stacking. The alignment mechanism is used to align the cardboard. The limiting mechanism is used to limit the cardboard. The alignment mechanism includes a guide plate (81), a slide bar (82), a push plate (83), a connecting plate (84), a spring (85) and a pushing assembly. The top of the horizontal electric guide rail (3) is connected to the guide plate (81). The guide plate (81) is slidably connected to the slide bar (82). The end of the slide bar (82) facing the stacking conveyor (7) is connected to the push plate (83). The end of the slide bar (82) away from the stacking conveyor (7) is connected to the connecting plate (84). A spring (85) is connected between the guide plate (81) and the connecting plate (84). The pushing assembly is used to push the connecting plate (84) to move the push plate (83). The push plate (83) pushes the cardboard to align the cardboard. The limiting mechanism comprises a limiting plate (91) and a limiting block (92); the limiting plate (91) for limiting the cardboard is connected between the two vertical electric guide rails (2); and the limiting block (92) for limiting the cardboard is connected to the mounting frame (4).

2. A cardboard palletizing device with an alignment function according to claim 1, characterized in that: The pushing assembly includes a trapezoidal contact block (86), a connecting frame (87) and a trapezoidal push block (88). The connecting plate (84) is connected to the trapezoidal contact block (86). The top of the slider of the horizontal electric guide rail (3) is connected to the connecting frame (87). The connecting frame (87) is connected to the trapezoidal push block (88). The trapezoidal push block (88) contacts the trapezoidal contact block (86) during the rightward movement and pushes the trapezoidal contact block (86), so that the push plate (83) moves. The push plate (83) pushes the cardboard to align the cardboard.

3. The cardboard palletizing device with alignment function according to claim 2, characterized in that: The press mechanism further comprises a lifting plate (101), a lifting rod (102), a pressing plate (103) and a second spring (104); the limiting plate (91) is connected to the lifting plate (101); the lifting plate (101) is connected to the lifting rod (102); the lifting rod (102) is slidably connected to a pressing plate (103) for pressing the stacked cardboard; the lifting rod (102) is connected to the second spring (104); and the second spring (104) and the pressing plate (103) are connected.

4. The cardboard palletizing device with alignment function according to claim 3, characterized in that: It also includes a fixed baffle (11), and the top of the mounting plate (6) is connected to the fixed baffle (11) for blocking the stacked cardboard.

5. The cardboard palletizing device with alignment function according to claim 4, characterized in that: The invention also includes a blocking mechanism, which includes a guide rod (121), a movable baffle (122), a spring (123) and a removal assembly. The fixed baffle (11) is connected to the guide rod (121). The guide rod (121) is slidably connected to the movable baffle (122) for blocking the stacked cardboard. The spring (123) is connected between the fixed baffle (11) and the movable baffle (122). The removal assembly is used to move the movable baffle (122) so that the movable baffle (122) no longer blocks the stacked cardboard.

6. The cardboard palletizing device with alignment function according to claim 5, characterized in that: The removal assembly includes a mounting block (124), a wedge-shaped contact block (125), a connecting block (126) and a wedge-shaped push block (127). The movable baffle (122) is connected to the mounting block (124), the mounting block (124) is connected to the wedge-shaped contact block (125), the lifting plate (101) is connected to the connecting block (126), and the connecting block (126) is connected to the wedge-shaped push block (127). The wedge-shaped push block (127) contacts the wedge-shaped contact block (125) during the upward movement and pushes the wedge-shaped contact block (125), so that the movable baffle (122) moves, so that the movable baffle (122) no longer blocks the stacked cardboard.

Images