Automatic finished product piling device for corrugated paper production

Abstract

The invention discloses an automatic finished product stacking device for corrugated paper production, and belongs to the field of corrugated paper production.The automatic finished product stacking device for corrugated paper production comprises a base, a containing frame is fixedly installed at the top of the base, and a motor is arranged on the inner side of the top of the rear end of the containing frame; the output end of the motor is fixedly connected with a cleaning roller, the cleaning roller is provided with a sorting assembly, the sorting assembly comprises a sliding block, a limiting groove is formed in the inner wall of the top of the rear end of the containing frame, the sliding block is slidably connected into the limiting groove, and the front end of the sliding block is fixedly connected with the rear end of the motor. A movable frame is hinged to the front end of the cleaning roller, and a spring is fixedly connected to the bottom of the front end of the movable frame. According to the corrugated paper stacking device, by arranging the sorting assembly, when corrugated paper is stacked, defective corrugated paper and intact corrugated paper can be separately placed, and stacking and storage of the corrugated paper are greatly improved.

Description

Technical Field

[0001] This application relates to the field of corrugated paper production. Specifically, it relates to an automatic stacking device for the finished products of corrugated paper production. Background Art

[0002] The automatic stacking device for the finished products of corrugated paper production is an important production equipment used to realize the automatic stacking process of the corrugated paper production line. This device can automatically complete operations such as stacking, positioning, and fixing of corrugated paper according to production requirements, thereby improving production efficiency and product quality. By using the automatic stacking device, enterprises can improve the production efficiency and product quality of corrugated paper while reducing labor costs and safety risks. Therefore, it has become one of the indispensable important equipments on the modern corrugated paper production line. At the same time, for different types of corrugated paper production lines, the detailed structure and specific configuration of this device may also vary, and customized design is required according to specific production requirements and conditions.

[0003] Currently, when the automatic stacking device for the finished products of corrugated paper we use is actually in use, when collecting corrugated paper, the dust on the corrugated paper will be cleaned by the cleaning roller. However, during the cleaning process, it is impossible to classify the defective ones in an orderly manner. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides an automatic stacking device for the finished products of corrugated paper production, which solves the problems raised in the above-mentioned background technology. To achieve the above objectives, the present invention is realized through the following technical solutions: An automatic stacking device for the finished products of corrugated paper production, including a base, on the top of the base is fixedly installed a placement rack, inside the top of the rear end of the placement rack is provided a motor, the output end of the motor is fixedly connected with a cleaning roller, on the cleaning roller is provided a sorting component, the sorting component includes a sliding block, on the inner wall of the top of the rear end of the placement rack is opened a limiting groove, the sliding block is slidably connected in the limiting groove, the front end of the sliding block is fixedly connected with the rear end of the motor, the front end of the cleaning roller is hinged with a moving frame, at the bottom of the front end of the moving frame is fixedly connected a spring, at the top of the moving frame is fixedly connected a first hydraulic rod, above the first hydraulic rod is provided a first hydraulic chamber, the middle lower part of the first hydraulic chamber is slidably connected with the outer wall of the top of the first hydraulic rod, at the bottom inner wall of one end of the first hydraulic chamber away from the first hydraulic rod is slidably connected a second hydraulic rod, on the left side of the second hydraulic rod is fixedly connected a first rack, at the bottom of the first rack is engaged a first gear, at the rear end of the first gear is provided a moving plate, inside the moving plate is hinged a partition plate, at the bottom of the front end of the moving plate is fixedly connected with the rear end of the first gear, at the top of the first rack is fixedly connected a rubber block, on the top of the rubber block is slidably connected a roller, on the outer wall above the roller is hinged a support frame, at the bottom of the first hydraulic chamber is fixedly connected a support plate.

[0005] Preferably, the front end of the moving frame is slidably connected with the inner wall of the top of the front end of the placement rack, and the bottom of the spring is fixedly connected with the inner wall of the top of the front end of the placement rack.

[0006] Preferably, the upper right side of the support frame is fixedly connected with the left side of the first hydraulic chamber, and the bottom of the support plate is fixedly connected with the inner wall of the top of the front end of the placement rack.

[0007] Preferably, on the base is provided a pressing component, the pressing component includes a second rack, on the left side of the second rack is fixedly connected a third hydraulic rod, on the left side of the third hydraulic rod is provided a second hydraulic chamber, the right inner wall of the second hydraulic chamber is slidably connected with the outer wall of the left side of the third hydraulic rod, at the inner wall of one end of the second hydraulic chamber away from the third hydraulic rod is slidably connected a fourth hydraulic rod, at the bottom of the fourth hydraulic rod is fixedly connected a pressing plate, at the outer walls of the front and rear ends of the pressing plate are hinged a collection trough, at the bottom of the second hydraulic chamber is fixedly connected a side plate.

[0008] Preferably, the bottom of the side plate is fixedly connected with the top of the base, the bottom of the collection trough is fixedly connected with the top of the base, and the top of the second rack is engaged with the bottom of the first gear.

[0009] Preferably, an alignment component is provided on the left side of the base. The alignment component includes a placement box. A box door is hinged to the left side of the placement box. A connecting column is fixedly connected to the rear end of the rear moving plate. A second gear is fixedly connected to the rear end of the connecting column. A third gear is meshed with the outer side of the second gear. A support column is hinged to the front end of the third gear. A third rack is meshed with the bottom of the third gear. A fifth hydraulic rod is fixedly connected to the left side of the third rack. A third hydraulic chamber is provided on the left side of the fifth hydraulic rod. The right inner wall of the third hydraulic chamber is slidably connected to the left outer wall of the fifth hydraulic rod. A sixth hydraulic rod is slidably connected to the left inner wall of the third hydraulic chamber. A pushing frame is fixedly connected to the left side of the sixth hydraulic rod. The bottom of the third hydraulic chamber is fixedly connected to the cross plate.

[0010] Preferably, the bottom of the pushing frame is slidably connected to the right inner wall of the bottom of the placement box. The bottom of the placement box is fixedly connected to the top of the base.

[0011] Preferably, the front end of the support column is fixedly connected to the upper part of the rear end of the placement rack. The bottom of the cross plate is fixedly connected to the top of the base.

[0012] The advantages of this application are as follows: (1) By setting the sorting component in this application, when stacking corrugated paper, defective corrugated paper can be placed separately from intact corrugated paper, greatly improving the stacking and storage of corrugated paper.

[0013] (2) By setting the pressing component in this application, defective corrugated paper in the collection tank can be quickly squeezed, achieving the effect of saving the internal space of the collection tank and facilitating the secondary processing of defective corrugated paper.

[0014] (3) By setting the alignment component in this application, the corrugated paper stacked inside the placement box can be aligned, enabling the corrugated paper to be neatly stacked inside the placement box and improving the stacking efficiency of the corrugated paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings that form a part of this application are used to provide a further understanding of this application, making other features, objectives, and advantages of this application more obvious. The schematic embodiments and descriptions thereof of this application are used to explain this application and do not constitute an improper limitation of this application. In the drawings: Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the rear view of the overall structure of the present invention; Figure 3 is the side view of the overall structure of the present invention; Figure 4is the top view of the overall structure of the present invention; Figure 5 is the present invention Figure 4 magnified view of part A; Figure 6 is the present invention Figure 3 magnified view of part B; Figure 7 is the present invention Figure 1 magnified view of part C; Figure 8 is the present invention Figure 4 magnified view of part D.

[0016] In the above figures, 1. Base; 2. Placing rack; 3. Motor; 4. Cleaning roller; 6. Sorting component; 61. Sliding block; 62. Limiting groove; 63. Moving rack; 64. Spring; 65. First hydraulic rod; 66. First hydraulic chamber; 67. Second hydraulic rod; 68. First rack; 69. First gear; 610. Roller; 611. Support frame; 612. Moving plate; 613. Partition board; 614. Rubber block; 615. Support plate; 7. Pressing component; 71. Second rack; 72. Third hydraulic rod; 73. Second hydraulic chamber; 74. Fourth hydraulic rod; 75. Pressing plate; 76. Collection tank; 77. Side plate; 8. Alignment component; 81. Placing box; 82. Box door; 83. Connecting column; 84. Second gear; 85. Third gear; 86. Support column; 87. Third rack; 88. Fifth hydraulic rod; 89. Third hydraulic chamber; 810. Sixth hydraulic rod; 811. Pushing rack; 812. Cross plate. Detailed implementation manners

[0017] In order to enable those skilled in the art of the present technology to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0018] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments. Embodiment 1

[0019] See Figures 1-6, this embodiment provides an automatic stacking device for the finished products of corrugated paper production, including a base 1. A placement rack 2 is fixedly installed on the top of the base 1. A motor 3 is arranged inside the top of the rear end of the placement rack 2. The output end of the motor 3 is fixedly connected to a cleaning roller 4. A sorting component 6 is arranged on the cleaning roller 4. The sorting component 6 includes a sliding block 61. The sliding block 61 is in an "H" shape. A limiting groove 62 is opened on the inner wall of the top of the rear end of the placement rack 2. The sliding block 61 is slidably connected in the limiting groove 62. The limiting groove 62 is in a "convex" shape. The front end of the sliding block 61 is fixedly connected to the rear end of the motor 3. By sliding the sliding block 61 up and down in the limiting groove 62, it can effectively prevent the motor 3 from moving left and right in position during use, affecting the use of the cleaning roller 4. The front end of the cleaning roller 4 is hinged with a moving frame 63. A spring 64 is fixedly connected to the bottom of the front end of the moving frame 63. The moving frame 63 is in an "L" shape. By using the moving frame 63 to provide power for the spring 64, the spring 64 can achieve stable expansion and contraction. A first hydraulic rod 65 is fixedly connected to the top of the moving frame 63. A first hydraulic chamber 66 is arranged above the first hydraulic rod 65. The middle lower part of the first hydraulic chamber 66 is slidably connected to the outer wall of the top of the first hydraulic rod 65. A second hydraulic rod 67 is slidably connected to the inner wall of the bottom of the end of the first hydraulic chamber 66 away from the first hydraulic rod 65. A first rack 68 is fixedly connected to the left side of the second hydraulic rod 67. A first gear 69 is engaged with the bottom of the first rack 68. By using the first rack 68 to provide power for the first gear 69, the first gear 69 can achieve stable rotation. A moving plate 612 is arranged at the rear end of the first gear 69. The number of the moving plates 612 is two, and the moving plates 612 are in an arc shape. A partition plate 613 is hinged to the inner side of the moving plates 612. By using the moving plates 612 to provide a supporting force for the partition plate 613, the bottom of the front moving plate 612 is fixedly connected to the rear end of the first gear 69. A rubber block 614 is fixedly connected to the top of the first rack 68. A roller 610 is slidably connected to the top of the rubber block 614. A support frame 611 is hinged to the outer wall above the roller 610. A support plate 615 is fixedly connected to the bottom of the first hydraulic chamber 66. By using the support plate 615 to provide a supporting force for the first hydraulic chamber 66, the first hydraulic chamber 66 can be stably used. The front end of the moving frame 63 is slidably connected to the inner wall of the top of the front end of the placement rack 2. The bottom of the spring 64 is fixedly connected to the top of the front end of the placement rack 2. The upper right side of the support frame 611 is fixedly connected to the left side of the first hydraulic chamber 66. By using the first hydraulic chamber 66 to provide a supporting force for the support frame 611, the support frame 611 is in an arc shape. The bottom of the support plate 615 is fixedly connected to the top of the front end of the placement rack 2. By using the placement rack 2 to provide a supporting force for the support plate 615, the support plate 615 can be stably installed on the placement rack 2.

[0020] When the above device is in specific use and corrugated paper needs to be packaged, the corrugated paper is conveyed by a conveyor belt through the placement rack 2 to the lower part of the cleaning roller 4. The motor 3 drives the cleaning roller 4 to rotate, so as to clean the dust on the corrugated paper. When there are protrusions on the surface of the corrugated paper, the rotating cleaning roller 4 can be pushed upward, so that the cleaning roller 4 drives the sliding block 61 at the rear end of the motor 3 to move upward in the limit groove 62, and the moving frame 63 at the front end of the cleaning roller 4 moves stably upward on the placement rack 2. The upward movement of the moving frame 63 pushes the first hydraulic rod 65 to squeeze towards the first hydraulic chamber 66. At the same time, when the moving frame 63 moves upward, the spring 64 can be driven to move upward on the placement rack 2 synchronously. By squeezing the first hydraulic rod 65 into the first hydraulic chamber 66, the second hydraulic rod 67 can be driven to move to the left. The leftward movement of the second hydraulic rod 67 drives the first rack 68 to move to the left. The leftward movement of the first rack 68 drives the first gear 69 to rotate to the left. The leftward rotation of the first gear 69 drives the moving plate 612 to flip to the left on the placement rack 2. The leftward flip of the moving plate 612 drives the partition plate 613 to flip to the lower left. The flipping of the partition plate 613 separates the defective corrugated paper from the intact corrugated paper on the placing bracket. When the defective corrugated paper moves away from the lower part of the cleaning roller 4, the spring 64 can pull the moving frame 63 downward, causing the first hydraulic rod 65 to move downward. The downward movement of the first hydraulic rod 65 drives the second hydraulic rod 67 to move to the right, causing the first rack 68 on the right side of the second hydraulic rod 67 to move to the right. The rightward movement of the first rack 68 drives the rubber block 614 at the top to move to the right in the roller 610, enabling the first rack 68 at the bottom of the rubber block 614 to move slowly to the right, and the first gear 69 at the bottom of the first rack 68 to rotate slowly and uniformly to the right, so that the moving plate 612 inside the first gear 69 flips stably to the upper right. Embodiment 2

[0021] See Figures 1-7, on the basis of the first embodiment, a pressing assembly 7 is provided on the base 1. The pressing assembly 7 includes a second rack 71. A third hydraulic rod 72 is fixedly connected to the left side of the second rack 71. A second hydraulic chamber 73 is provided on the left side of the third hydraulic rod 72. The right inner wall of the second hydraulic chamber 73 is slidably connected to the left outer wall of the third hydraulic rod 72. A fourth hydraulic rod 74 is slidably connected to the inner wall of one end of the second hydraulic chamber 73 away from the third hydraulic rod 72. A pressing plate 75 is fixedly connected to the bottom of the fourth hydraulic rod 74. The fourth hydraulic rod 74 provides support force and power for the use of the pressing plate 75, enabling the pressing plate 75 to better press and store the defective corrugated paper in the placement groove 76. The front and rear outer walls of the pressing plate 75 are hinged with a collection groove 76. A side plate 77 is fixedly connected to the bottom of the second hydraulic chamber 73. The side plate 77 provides support force for the use of the second hydraulic chamber 73, enabling the second hydraulic chamber 73 to be stably used on the base 1. The bottom of the side plate 77 is fixedly connected to the top of the base 1. The bottom of the collection groove 76 is fixedly connected to the top of the base 1. The base 1 provides support force for the use of the collection groove 76, effectively preventing the collection groove 76 from moving in position during use and affecting the use. The top of the second rack 71 meshes with the bottom of the first gear 69. The first gear 69 provides power for the use of the second rack 71.

[0022] When the above device is in specific use, when the partition plate 613 conveys the defective corrugated paper into the interior of the collection groove 76, the first gear 69 rotates to the right, which can drive the second rack 71 to rotate to the left. The leftward rotation of the second rack 71 drives the third hydraulic rod 72 to be extruded to the left, causing the fourth hydraulic rod 74 in the second hydraulic chamber 73 to move downward to the left. The downward movement of the fourth hydraulic rod 74 to the left drives the pressing plate 75 to press downward in the collection groove 76. When defective corrugated paper needs to be loaded into the collection groove, the leftward rotation of the first gear 69 can drive the second rack 71 to rotate to the right, causing the third hydraulic rod 72 on the right side of the second rack 71 to move to the right. The rightward movement of the third hydraulic rod 72 drives the fourth hydraulic rod 74 at the other end of the second hydraulic chamber 73 to move upward to the right. The upward movement of the fourth hydraulic rod 74 to the right drives the pressing plate 75 to move upward to the right in the collection groove 76, enabling the defective corrugated paper to enter the collection groove 76. Embodiment Three

[0023] See Figures 4-8, on the basis of Embodiment 2, an alignment component 8 is provided on the left side of the base 1. The alignment component 8 includes a placement box 81. A box door 82 is hinged to the left side of the placement box 81. A connecting column 83 is fixedly connected to the rear end of the rear end moving plate 612. The moving plate 612 provides a support force for the use of the connecting column 83. A second gear 84 is fixedly connected to the rear end of the connecting column 83. The connecting column 83 provides a support force and power for the use of the second gear 84. A third gear 85 is meshed with the outside of the second gear 84. The second gear 84 provides a support force and power for the use of the third gear 85. A support column 86 is hinged to the front end of the third gear 85. A third rack 87 is meshed with the bottom of the third gear 85. A fifth hydraulic rod 88 is fixedly connected to the left side of the third rack 87. The third rack 87 provides power for the use of the fifth hydraulic rod 88. A third hydraulic chamber 89 is provided on the left side of the fifth hydraulic rod 88. The right inner wall of the third hydraulic chamber 89 is slidably connected to the left outer wall of the fifth hydraulic rod 88. A sixth hydraulic rod 810 is slidably connected to the left inner wall of the third hydraulic chamber 89. A pushing frame 811 is fixedly connected to the left side of the sixth hydraulic rod 810. The sixth hydraulic rod 810 provides power for the use of the pushing frame 811. The bottom of the third hydraulic chamber 89 is fixedly connected to the cross plate 812. The cross plate 812 provides a support force for the use of the third hydraulic chamber 89, so that the third hydraulic chamber 89 can be stably arranged on the base 1. The bottom of the pushing frame 811 is slidably connected to the right inner wall of the bottom of the placement box 81. The bottom of the placement box 81 is fixedly connected to the top of the base 1. The front end of the support column 86 is fixedly connected to the upper part of the rear end of the placement rack 2. The bottom of the cross plate 812 is fixedly connected to the top of the base 1. The base 1 provides a support force for the use of the cross plate 812, making the use of the cross plate 812 more stable.

[0024] When the corrugated paper has defects and needs to be placed in the collection groove 76 during the specific use of the above device, it can drive the moving plate 612 to rotate to the left. The leftward rotation of the moving plate 612 drives the connecting column 83 to rotate to the left. The leftward rotation of the connecting column 83 drives the second gear 84 to rotate to the left. The leftward rotation of the second gear 84 drives the third gear 85 to rotate to the right on the support column 86. The rightward rotation of the third gear 85 drives the third rack 87 to move to the left. The leftward movement of the third rack 87 drives the fifth hydraulic rod 88 to be extruded into the third hydraulic chamber 89 on the left, causing the sixth hydraulic rod 810 on the left side of the third hydraulic chamber 89 to move to the left. The leftward movement of the sixth hydraulic rod 810 drives the pushing frame 811 to move to the left in the placement box 81, realizing the alignment of the corrugated paper in the placement box 81 by the pushing frame 811.

[0025] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention should cover within the protection scope of the present invention any equivalent substitution or change made according to the technical solution and inventive concept of the present invention.

Claims

1. An automatic stacking device for the finished products of corrugated paper production, including a base (1), characterized in that, A placing rack (2) is fixedly installed on the top of the base (1). Inside the top of the rear end of the placing rack (2), a motor (3) is arranged. The output end of the motor (3) is fixedly connected with a cleaning roller (4). A sorting component (6) is arranged on the cleaning roller (4). The sorting component (6) includes a sliding block (61). A limiting groove (62) is formed on the inner wall of the top of the rear end of the placing rack (2). The sliding block (61) is slidably connected in the limiting groove (62). The front end of the sliding block (61) is fixedly connected with the rear end of the motor (3). The front end of the cleaning roller (4) is hinged with a moving frame (63). A spring (64) is fixedly connected to the bottom of the front end of the moving frame (63). A first hydraulic rod (65) is fixedly connected to the top of the moving frame (63). Above the first hydraulic rod (65), there is a first hydraulic chamber (66). The middle lower part of the first hydraulic chamber (66) is slidably connected with the outer wall of the top of the first hydraulic rod (65). A second hydraulic rod (67) is slidably connected to the inner wall of the bottom end, far from the first hydraulic rod (65), of the first hydraulic chamber (66). A first rack (68) is fixedly connected to the left side of the second hydraulic rod (67). A first gear (69) is meshed with the bottom of the first rack (68). A moving plate (612) is arranged at the rear end of the first gear (69). A partition plate (613) is hinged to the inner side of the moving plate (612). The bottom of the front moving plate (612) is fixedly connected with the rear end of the first gear (69). A rubber block (614) is fixedly connected to the top of the first rack (68). A roller (610) is slidably connected to the top of the rubber block (614). A support frame (611) is hinged to the outer wall above the roller (610). A support plate (615) is fixedly connected to the bottom of the first hydraulic chamber (66).

2. The automated stacking device for the finished products of corrugated paper production according to claim 1, wherein, The front end of the moving frame (63) is slidably connected with the inner wall of the top of the front end of the placing rack (2). The bottom of the spring (64) is fixedly connected with the top of the front end of the placing rack (2).

3. The finished product automatic stacking device for corrugated paper production according to claim 1, characterized in that, The upper right side of the support frame (611) is fixedly connected with the left side of the first hydraulic chamber (66). The bottom of the support plate (615) is fixedly connected with the top of the front end of the placing rack (2).

4. The automatic stacking device for the finished products of corrugated paper production according to claim 1, characterized in that, A pressing component (7) is arranged on the base (1). The pressing component (7) includes a second rack (71). A third hydraulic rod (72) is fixedly connected to the left side of the second rack (71). A second hydraulic chamber (73) is arranged on the left side of the third hydraulic rod (72). The right inner wall of the second hydraulic chamber (73) is slidably connected with the outer wall of the left side of the third hydraulic rod (72). A fourth hydraulic rod (74) is slidably connected to the inner wall of the end, far from the third hydraulic rod (72), of the second hydraulic chamber (73). A pressing plate (75) is fixedly connected to the bottom of the fourth hydraulic rod (74). The front and rear outer walls of the pressing plate (75) are hinged with a collecting groove (76). A side plate (77) is fixedly connected to the bottom of the second hydraulic chamber (73).

5. The finished product automatic stacking device for corrugated paper production according to claim 4, characterized in that, The bottom of the side plate (77) is fixedly connected to the top of the base (1), the bottom of the collection groove (76) is fixedly connected to the top of the base (1), and the top of the second rack (71) meshes with the bottom of the first gear (69).

6. The finished product automatic stacking device for corrugated paper production according to claim 1, characterized in that, An alignment assembly (8) is provided on the left side of the base (1). The alignment assembly (8) includes a placement box (81). A box door (82) is hinged to the left side of the placement box (81). A connecting column (83) is fixedly connected to the rear end of the rear moving plate (612). A second gear (84) is fixedly connected to the rear end of the connecting column (83). A third gear (85) meshes with the outside of the second gear (84). A support column (86) is hinged to the front end of the third gear (85). A third rack (87) meshes with the bottom of the third gear (85). A fifth hydraulic rod (88) is fixedly connected to the left side of the third rack (87). A third hydraulic chamber (89) is provided on the left side of the fifth hydraulic rod (88). The right inner wall of the third hydraulic chamber (89) is slidably connected to the left outer wall of the fifth hydraulic rod (88). A sixth hydraulic rod (810) is slidably connected to the left inner wall of the third hydraulic chamber (89). A pushing frame (811) is fixedly connected to the left side of the sixth hydraulic rod (810). The bottom of the third hydraulic chamber (89) is fixedly connected to a cross plate (812).

7. An automatic stacking device for the finished products of corrugated paper production according to claim 6, characterized in that, The bottom of the pushing frame (811) is slidably connected to the right inner wall of the bottom of the placement box (81), and the bottom of the placement box (81) is fixedly connected to the top of the base (1).

8. An automated stacking device for the finished products of corrugated paper production according to claim 6, characterized in that, The front end of the support column (86) is fixedly connected to the upper part of the rear end of the placement rack (2), and the bottom of the cross plate (812) is fixedly connected to the top of the base (1).

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