Automatic stacking machine

Abstract

The utility model provides an automatic stacking machine, and relates to the technical field of empty box stacking. The second frame is fixedly connected with the first frame; the third frame is fixedly connected with the second frame, the first frame is located at one end of the second frame, and the third frame is located at the other end of the second frame; the clamping mechanism is fixedly connected with the second frame and located above the second frame; the transmission assembly is connected with the first frame and the second frame; in the using state, the standard material boxes are conveyed to the second frame from the first frame through the transmission assembly, the standard material boxes are stacked through the clamping and holding mechanism, and the stacked standard material boxes are conveyed to the third frame through the second frame. According to the scheme, automatic stacking of the standard material boxes is achieved through the transmission assembly and the clamping and holding mechanism, the structure is simple, operation is convenient, cost is reduced, and stacking efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of empty box stacking, in particular to an automatic stacker. Background Art

[0002] In automobile manufacturing, the standardization and automation of the transportation and distribution of parts have always been the core key factors for the rapidity and low cost of vehicle manufacturing. In the distribution of the assembly line, the OEM uses small batches or sorting of hoppers to deliver goods, which has become the mainstream distribution method in the automobile production process. The distribution hoppers in this link are standard hoppers with several or more than a dozen standard specifications that need to be recycled and reused. The hopper is responsible for the material carrying and transportation work from the transfer warehouse to the assembly workshop or from the local supplier to the assembly workshop. After the assembly workshop uses the materials in the hopper, the hopper needs to be classified and stacked according to the model and manufacturer in order to return the empty boxes to the supplier or the transfer warehouse in a unified manner. At present, most of the empty box stacking work still relies on manual labor, which is labor-intensive and inefficient, and is an important bottleneck link restricting the full process automation of the automobile production industry. Existing stacking equipment is mostly realized by multi-axis serial or parallel manipulators, gantry robots, etc. Such equipment has complex structure, high cost, complex motion control, and difficulty in maintenance. At the same time, it is limited by the compactness of stacking and has the disadvantages of low efficiency and poor placement stability. Utility Model Content

[0003] The utility model provides an automatic stacker, which solves the problems of complex structure, high cost and complex stacking control of existing stacking equipment.

[0004] To solve the above technical problems, the technical solution of this novel invention is as follows:

[0005] The embodiment of the utility model provides an automatic stacker, comprising:

[0006] First frame;

[0007] a second frame fixedly connected to the first frame;

[0008] A third frame fixedly connected to the second frame, wherein the first frame is located at one end of the second frame, and the third frame is located at the other end of the second frame;

[0009] A clamping mechanism fixedly connected to the second frame, the clamping mechanism being located above the second frame;

[0010] a transmission assembly connected to the first frame and the second frame;

[0011] When in use, the standard material boxes are transferred from the first frame to the second frame through the transmission assembly, the standard material boxes are stacked through the clamping mechanism, and the stacked standard material boxes are transferred to the third frame through the second frame.

[0012] Optionally, the first frame, the second frame and the third frame are all rectangular structures, the second frame is higher than the third frame, and the third frame is higher than the first frame.

[0013] Optionally, the first framework includes:

[0014] a first support beam group, a first cross beam group, and a first longitudinal beam group;

[0015] One end of the first support beam group is placed on the ground, and the other end is vertically arranged with the first cross beam group and the first longitudinal beam group. The first cross beam group and the first longitudinal beam group are vertically arranged.

[0016] Optionally, the second frame includes: a second support beam group, a second longitudinal beam group, a second cross beam, a third support beam group and a third longitudinal beam group;

[0017] One end of the second support beam group is placed on the ground, and the other end is arranged perpendicularly to the second cross beam. The second cross beam is arranged parallel to the first cross beam group. The second longitudinal beam group is fixedly connected to the second cross beam and the first cross beam group. The third support beam group is perpendicular to the second longitudinal beam group and the second cross beam, and one end is vertically fixedly connected to the end of the second longitudinal beam group. The third longitudinal beam group is arranged parallel to the second longitudinal beam group, and an end is fixedly connected to the third support beam group.

[0018] Optionally, the third frame includes: a fourth support beam group, a fourth longitudinal beam group and a pallet pad;

[0019] The fourth support beam group is arranged parallel to the second support beam group, and one end is placed on the ground. The fourth longitudinal beam group is arranged parallel to the third longitudinal beam group, and one end of the fourth longitudinal beam group is fixedly connected to the other end of the fourth support beam group, and the other end is fixedly connected to the third support beam group. The pallet pad is placed above the fourth longitudinal beam group and fixedly connected.

[0020] Optionally, the transmission assembly includes:

[0021] A first chain and a second chain fixedly connected to both sides of the first frame and the second frame, wherein the first chain is located inside the second chain;

[0022] The chain tray is fixedly connected to the first chain and the second chain, and along the rotation direction of the first chain, the two ends of the front part of the chain tray are fixedly connected to the first chain, and the two ends of the rear part are fixedly connected to the second chain.

[0023] Optionally, the automatic stacker also includes:

[0024] A pallet rack disposed above and fixedly connected to the pallet pad;

[0025] A single row of pallets is arranged above the pallet rack.

[0026] Optionally, the clamping mechanism includes:

[0027] A first clamping column disposed above the second frame;

[0028] A second clamping column disposed above the second frame and opposite to the first clamping column;

[0029] A first clamping guide disposed on both sides of the first clamping column and fixedly connected to the first clamping column;

[0030] A second clamping guide is arranged on both sides of the second clamping column and fixedly connected to the second clamping column.

[0031] Optionally, the clamping mechanism further includes:

[0032] A first lower clamping claw disposed below the first clamping column and rotatably connected to the first clamping column;

[0033] A second lower clamping claw disposed below the second clamping column and rotatably connected to the second clamping column;

[0034] A first upper clamping claw disposed above the first clamping column and rotatably connected to the first clamping column;

[0035] A second upper clamping claw disposed above the second clamping column and rotatably connected to the first clamping column;

[0036] The first lower clamping jaw and the second lower clamping jaw are fixedly connected via a first clamping jaw connecting rod, and the first upper clamping jaw and the second upper clamping jaw are fixedly connected via a second clamping jaw connecting rod.

[0037] Optionally, the transmission assembly further includes:

[0038] a driving motor fixedly connected to the second frame;

[0039] a pulley fixedly connected to the second frame, and a belt arranged on the pulley;

[0040] When in use, the driving motor drives the belt to rotate.

[0041] The above solution of the utility model includes at least the following beneficial effects:

[0042] The automatic stacker described in the utility model includes: a first frame; a second frame fixedly connected to the first frame; a third frame fixedly connected to the second frame, the first frame is located at one end of the second frame, and the third frame is located at the other end of the second frame; a clamping mechanism fixedly connected to the second frame, the clamping mechanism is located above the second frame; a transmission assembly connected to the first frame and the second frame; when in use, the standard material box is transferred from the first frame to the second frame through the transmission assembly, the standard material box is stacked through the clamping mechanism, and the stacked standard material box is transferred to the third frame through the second frame. The solution of the utility model realizes the automatic stacking of standard material boxes through the transmission assembly and the clamping mechanism, has a simple structure, is easy to operate, reduces costs, and increases stacking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a three-dimensional diagram of the automatic stacker of the utility model;

[0044] Figure 2 It is a structural schematic diagram of the first frame, the second frame and the third frame of the automatic stacker of the utility model;

[0045] Figure 3 It is a structural schematic diagram of the transmission assembly and guide enclosure of the automatic stacker of the utility model;

[0046] Figure 4 It is a schematic diagram of the positions of the first chain and the second chain of the automatic stacker of the utility model;

[0047] Figure 5 It is a structural schematic diagram of the first chain of the automatic stacker of the utility model;

[0048] Figure 6 It is a structural schematic diagram of the second chain of the automatic stacker of the utility model;

[0049] Figure 7 It is a structural schematic diagram of the belt and pulley of the automatic stacker of the utility model;

[0050] Figure 8 It is a structural schematic diagram of the clamping structure of the automatic stacker of the utility model;

[0051] Fig. 9 The utility model is a schematic diagram of the structure of the lower clamping claw of the automatic stacker clamping a standard material box. Description of the drawings:

[0053] 11. First frame; 12. Second frame; 13. Third frame; 111. First support beam group; 112. First cross beam group; 113. First longitudinal beam group; 121. Second support beam group; 122. Second longitudinal beam group; 123. Second cross beam; 124. Third support beam group; 125. Third longitudinal beam group; 131. Fourth support beam group; 132. Fourth longitudinal beam group; 133. Pallet pad; 2. Clamping mechanism; 211. First lower clamping claw; 212. Second lower clamping claw; 221. First clamping column; 222 , the second clamping column; 231, the first clamping claw connecting rod; 232, the second clamping claw connecting rod; 241, the first upper clamping claw; 242, the second upper clamping claw; 251, the first clamping guide; 252, the second clamping guide; 3, the pallet rack; 4, the single-row pallet; 5, the transmission assembly; 51, the chain pallet; 52, the side guide; 53, the first chain; 531, the second chain; 54, the chain drive shaft; 55, the pallet limit; 56, the belt; 57, the sprocket; 58, the pulley; 6, the standard material box; 7, the driving motor. DETAILED DESCRIPTION

[0054] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0055] like Figure 1 As shown, an embodiment of the utility model provides an automatic stacker, comprising:

[0056] First frame 11;

[0057] A second frame 12 fixedly connected to the first frame 11;

[0058] a third frame 13 fixedly connected to the second frame 12, wherein the first frame 11 is located at one end of the second frame 12, and the third frame 13 is located at the other end of the second frame 12;

[0059] A clamping mechanism 2 fixedly connected to the second frame 12, wherein the clamping mechanism 2 is located above the second frame 12;

[0060] A transmission assembly 5 connected to the first frame 11 and the second frame 12;

[0061] When in use, the standard material box 6 is transferred from the first frame 11 to the second frame 12 via the transmission assembly 5 , the standard material box 6 is stacked via the clamping mechanism 2 , and the stacked standard material box 6 is transferred to the third frame 13 via the second frame 12 .

[0062] In this embodiment, based on the simple structure and the efficiency that meets the actual needs of high-beat and high-efficiency, the automatic stacker involved in the utility model is applied to a combination of the most common standard profiles, chain conveyors, servo motors and controllers, visual recognition cameras, transplanters, etc. on the market to achieve the stacking of standard material boxes. The visual recognition camera records and distinguishes the model and quantity of the standard material box 6, and transports the standard material box 6 to the first frame 11 through the transplanter. The stacking process of the utility model does not require manual operation, saves stacking operators, and reduces operating costs. The front end is connected to automated equipment such as visual recognition cameras and transplanters, and the back end is connected to automated equipment such as unmanned forklifts to realize the automation of the logistics process, reduce costs, and increase efficiency.

[0063] like Figure 1 As shown, its core structure consists of a first frame 11, a second frame 12, a third frame 13, a clamping mechanism 2 and a transmission assembly 5; the standard material box 6 is the required stacking material and is not the main structure of the utility model. The first frame 11, the second frame 12 and the third frame 13 are made of square steel or standard aluminum profiles connected by welding or bolts. The profile size and length are selected as required according to the size of the standard material box 6 and the height of the docking equipment. The clamping mechanism 2 is mainly composed of a ratchet clamping and lifting structure composed of a lower claw and an upper claw. The one-way feeding and stacking is achieved through the ratchet principle.

[0064] like Figure 2 As shown, in an optional embodiment of the utility model, the first frame 11, the second frame 12 and the third frame 13 are all rectangular structures, the height of the second frame 12 is higher than the third frame 13, and the height of the third frame 13 is higher than the first frame 11.

[0065] In an optional embodiment of the present invention, the first frame 11 includes:

[0066] A first support beam group 111, a first cross beam group 112 and a first longitudinal beam group 113;

[0067] One end of the first support beam group 111 is placed on the ground, and the other end is vertically arranged with the first cross beam group 112 and the first longitudinal beam group 113 . The first cross beam group 112 and the first longitudinal beam group 113 are vertically arranged.

[0068] In this embodiment, four support beams form a first support beam group 111, and the first support beam group 111 serves as a support for the bottom and the ground of the overall stacking structure. Two cross beams form a first cross beam group 112, which is responsible for the overall lateral stability of the bottom frame. The first longitudinal beam group 113 is composed of two longitudinal beams, and each of the two longitudinal beams of the first longitudinal beam group 113 has four bolt holes for connecting the conveying assembly 5. In an optional embodiment of the utility model, the second frame 12 includes: a second support beam group 121, a second longitudinal beam group 122, a second cross beam 123, a third support beam group 124 and a third longitudinal beam group 125;

[0069] One end of the second support beam group 121 is placed on the ground, and the other end is perpendicular to the second cross beam 123. The second cross beam 123 is parallel to the first cross beam group 112. The second longitudinal beam group 122 is fixedly connected to the second cross beam 123 and the first cross beam group 112. The third support beam group 124 is perpendicular to the second longitudinal beam group 122 and the second cross beam 123, and one end is perpendicularly fixedly connected to the end of the second longitudinal beam group 122. The third longitudinal beam group 125 is parallel to the second longitudinal beam group 122, and the end is fixedly connected to the third support beam group 124.

[0070] In this embodiment, two longitudinal beams form the third longitudinal beam group 125, which is responsible for connecting and fixing the bottom frame and the upper clamping mechanism 2, and all cross beams and longitudinal beams are made of national standard steel or aluminum profiles. The second longitudinal beam group 122 is composed of two longitudinal beams.

[0071] In an optional embodiment of the utility model, the third frame 13 includes: a fourth support beam group 131, a fourth longitudinal beam group 132 and a tray pad 133;

[0072] The fourth support beam group 131 is arranged parallel to the second support beam group 121, and one end is placed on the ground. The fourth longitudinal beam group 132 is arranged parallel to the third longitudinal beam group 125, and one end of the fourth longitudinal beam group 132 is fixedly connected to the other end of the fourth support beam group 131, and the other end is fixedly connected to the third support beam group 124. The pallet pad 133 is placed above the fourth longitudinal beam group 132 and fixedly connected.

[0073] In this embodiment, the pallet pad 133 is made of polyvinyl chloride (PVC) or patterned iron plate, aluminum plate and other materials. It is responsible for carrying the pallet for transportation after stacking empty boxes. The pallet pad 133 is supported by the fourth support beam group 131, which is composed of two support beams. The pallet pad 133 is connected to the fourth longitudinal beam group 132 and the fourth support beam group 131 to ensure that it is fixed firmly and has sufficient strength.

[0074] like Figure 3As shown, in an optional embodiment of the utility model, the transmission assembly 5 includes:

[0075] A first chain 53 and a second chain 531 fixedly connected to both sides of the first frame 11 and the second frame 12, wherein the first chain 53 is located inside the second chain 531;

[0076] The chain tray 51 is fixedly connected to the first chain 53 and the second chain 531 , and along the rotation direction of the first chain 53 , the two ends of the front portion of the chain tray 51 are fixedly connected to the first chain 53 , and the two ends of the rear portion are fixedly connected to the second chain 531 .

[0077] In this embodiment, the two longitudinal beams of the first longitudinal beam group 113 each have four bolt holes for connecting the side guides 52 . The side guides 52 are formed by bending stainless steel. A chain rotating shaft 54 ​​is set at the junction of the third support beam group 124 and the third longitudinal beam group 125 . The chain rotating shaft is parallel to the second cross beam 123 .

[0078] like Figure 4 As shown, two first chains 53 and two second chains 531 are provided, which are respectively located on both sides of the first frame 11 and the second frame 12 , and the first chain 53 is located inside the second chain 531 .

[0079] like Figure 5 As shown in FIG. 1 , it is a position structure diagram of the first chain 53, as shown in FIG. Figure 6 , which is a position structure diagram of the second chain 531 , the first chain 53 and the second chain 531 both rotate in a counterclockwise direction.

[0080] There are several chain trays 51, and the head and tail ends of each chain tray 51 are connected to the chains on both sides. As the first chain 53 and the second chain 531 roll, the chain tray 51 carrying the standard material box 6 is always parallel to the ground, and when it reaches the chain transmission shaft 54, it is in a vertical state and rolls back to the initial position with the chain. The first chain 53 and the second chain 531 are symmetrically arranged on the left and right sides, and the single-side chain includes two inner and outer chains. The outer chain, that is, the second chain 531, is turned back along the sprocket 57, and the inner chain, that is, the first chain 53, is turned back along the inner ring chain transmission shaft 54.

[0081] The chain transmission shaft 54 ​​is cut and formed by a hollow steel pipe, and four sprockets and a pulley 58 are mounted on the upper part as required to provide power for the first chain 53 and the second chain 531. The first chain 53 and the second chain 531 are connected to each sprocket through a flat key, and the belt 56 and the pulley 58 are connected through a flat key.

[0082] like Figure 7 As shown, in an optional embodiment of the utility model, the transmission assembly 5 further includes:

[0083] A driving motor 7 fixedly connected to the second frame 12;

[0084] a pulley 58 fixedly connected to the second frame 12, and a belt 56 disposed on the pulley 58;

[0085] When in use, the driving motor 7 drives the belt 56 to rotate.

[0086] In this embodiment, the driving motor 7 and the controller are selected from mainstream brands on the market according to actual needs, and are connected to the motor mounting plate welded on the second frame 12 by bolts. The driving motor 7 drives the belt 56 to rotate, and the belt 56 drives the pulley 58 to rotate. The pulley 58 transmits power to the moving chain transmission shaft 54, thereby rotating the first chain 53 and the second chain 531; the top ends of the columns of the first frame 11 and the second frame 12, that is, the chain corners are fixed with sprockets through the chain mounting shafts welded on the first frame 11 and the second frame 12.

[0087] In an optional embodiment of the utility model, the automatic stacker further comprises:

[0088] A pallet rack 3 disposed above and fixedly connected to the pallet pad 133;

[0089] A single row of pallets 4 is arranged above the pallet rack 3 .

[0090] In this embodiment, the 3-pallet rack is constructed of standard profiles or aluminum alloy wire rods and fixed by welding or bolting. It is used to carry a single-row pallet 4 to transport and stack the empty material boxes. The equipment is equipped with customized pallets for stacking single-row material boxes. The pallet limiter 55 is bent and formed by stainless steel and fixed to the 3-pallet rack by bolts.

[0091] like Figure 8 As shown, in an optional embodiment of the utility model, the clamping mechanism 2 includes:

[0092] A first clamping column 221 disposed above the second frame 12;

[0093] A second clamping column 222 disposed above the second frame 12 and opposite to the first clamping column 221;

[0094] A first clamping guide 251 disposed on both sides of the first clamping column 221 and fixedly connected to the first clamping column 221;

[0095] The second clamping guides 252 are disposed on both sides of the second clamping column 222 and fixedly connected to the second clamping column 222 .

[0096] In this embodiment, the structural core of the entire clamping mechanism is: a clamping column, which is made of standard profiles. It is connected to the second frame 12 by bolts. The two sides are arranged symmetrically, and clamping guides are installed on the left and right sides of the clamping column and connected by bolts. The material is stainless steel, cut and bent into shape.

[0097] In an optional embodiment of the utility model, the clamping mechanism 2 further includes:

[0098] A first lower claw 211 disposed below the first clamping column 221 and rotatably connected to the first clamping column 221;

[0099] A second lower claw 212 disposed below the second clamping column 222 and rotatably connected to the second clamping column 222;

[0100] A first upper claw 241 disposed above the first clamping column 221 and rotatably connected to the first clamping column 221;

[0101] A second upper claw 242 disposed above the second clamping column 222 and rotatably connected to the first clamping column 221;

[0102] The first lower clamping jaw 211 and the second lower clamping jaw 212 are fixedly connected via a first clamping jaw connecting rod 231 , and the first upper clamping jaw 241 and the second upper clamping jaw 242 are fixedly connected via a second clamping jaw connecting rod 232 .

[0103] like Fig. 9 As shown, in this embodiment, claws are installed at the upper and lower ends of the clamping column, and the lower claw is responsible for keeping the box separated from the lower conveyor belt by clamping the outer edge of the box. The lower claw is connected to the upper claw by a claw connecting rod. The upper claw is responsible for releasing the lower claw after the box is stacked to a specified height, thereby allowing the standard material box to move along the conveyor belt to the single-row pallet 4, completing the automation of all actions.

[0104] The utility model uses the simplest profile, chain conveyor belt, ratchet structure and the like to form an automatic stacking structure. The structure is simple, and only one power system is needed for the whole, and there is no need to control the clamping and transplanting process separately. The principle of parallel movement of chain conveyor belt is cleverly used to realize the stacking process of empty boxes from bottom to top. The principle that one set of chains can be installed with multiple sets of conveyor chains is cleverly used. According to the designed stacking height and quantity, a blocking structure is installed at the end of a specific conveyor chain to realize the automatic transplanting process after the stacking is completed. The whole process does not require additional power and control structure.

[0105] The materials used in the present invention include but are not limited to the structures and models mentioned in the scheme. The shapes of the profiles can be selected according to actual needs as long as they meet the supporting force of the stacking equipment. All other standard parts, plates and other materials can be selected according to the actual weight of the parts, and can also be replaced by self-made structures with related functions.

[0106] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An automatic stacker, characterized in that: include: First frame (11); a second frame (12) fixedly connected to the first frame (11); a third frame (13) fixedly connected to the second frame (12), wherein the first frame (11) is located at one end of the second frame (12), and the third frame (13) is located at the other end of the second frame (12); a clamping mechanism (2) fixedly connected to the second frame (12), the clamping mechanism (2) being located above the second frame (12); A transmission assembly (5) connected to the first frame (11) and the second frame (12); When in use, the standard material boxes (6) are transferred from the first frame (11) to the second frame (12) via the transmission assembly (5), the standard material boxes (6) are stacked via the clamping mechanism (2), and the stacked standard material boxes (6) are transferred to the third frame (13) via the second frame (12).

2. The automatic stacker according to claim 1, characterized in that: The first frame (11), the second frame (12) and the third frame (13) are all rectangular structures; the height of the second frame (12) is higher than that of the third frame (13), and the height of the third frame (13) is higher than that of the first frame (11).

3. The automatic stacker according to claim 1, characterized in that: The first frame (11) comprises: A first support beam group (111), a first cross beam group (112) and a first longitudinal beam group (113); One end of the first support beam group (111) is placed on the ground, and the other end is arranged perpendicularly to the first cross beam group (112) and the first longitudinal beam group (113); the first cross beam group (112) and the first longitudinal beam group (113) are arranged perpendicularly.

4. The automatic stacker according to claim 3, characterized in that: The second frame (12) comprises: A second support beam group (121), a second longitudinal beam group (122), a second cross beam (123), a third support beam group (124) and a third longitudinal beam group (125); One end of the second support beam group (121) is placed on the ground, and the other end is arranged perpendicularly to the second cross beam (123); the second cross beam (123) is arranged parallel to the first cross beam group (112); the second longitudinal beam group (122) is fixedly connected to the second cross beam (123) and the first cross beam group (112); the third support beam group (124) is perpendicular to the second longitudinal beam group (122) and the second cross beam (123), and one end is vertically fixedly connected to the end of the second longitudinal beam group (122); the third longitudinal beam group (125) is arranged parallel to the second longitudinal beam group (122), and the end is fixedly connected to the third support beam group (124).

5. The automatic stacker according to claim 4, characterized in that: The third frame (13) comprises: A fourth support beam group (131), a fourth longitudinal beam group (132) and a pallet pad (133); The fourth support beam group (131) is arranged in parallel with the second support beam group (121), and one end is placed on the ground; the fourth longitudinal beam group (132) is arranged in parallel with the third longitudinal beam group (125), and one end of the fourth longitudinal beam group (132) is fixedly connected to the other end of the fourth support beam group (131), and the other end is fixedly connected to the third support beam group (124); the tray pad (133) is placed above the fourth longitudinal beam group (132) and fixedly connected.

6. The automatic stacker according to claim 1, characterized in that: The transmission assembly (5) comprises: a first chain (53) and a second chain (531) fixedly connected to both sides of the first frame (11) and the second frame (12), wherein the first chain (53) is located inside the second chain (531); A chain tray (51) fixedly connected to the first chain (53) and the second chain (531), wherein along the rotation direction of the first chain (53), the two ends of the front portion of the chain tray (51) are fixedly connected to the first chain (53), and the two ends of the rear portion are fixedly connected to the second chain (531).

7. The automatic stacker according to claim 5, characterized in that: Also includes: A pallet frame (3) disposed above and fixedly connected to the pallet pad (133); A single row of pallets (4) is arranged above the pallet rack (3).

8. The automatic stacker according to claim 1, characterized in that: The clamping mechanism (2) comprises: A first clamping column (221) disposed above the second frame (12); A second clamping column (222) disposed above the second frame (12) and opposite to the first clamping column (221); A first clamping guide (251) disposed on both sides of the first clamping column (221) and fixedly connected to the first clamping column (221); A second clamping guide (252) is arranged on both sides of the second clamping column (222) and is fixedly connected to the second clamping column (222).

9. The automatic stacker according to claim 8, characterized in that: The clamping mechanism (2) further comprises: A first lower clamping claw (211) disposed below the first clamping column (221) and rotatably connected to the first clamping column (221); A second lower clamping claw (212) disposed below the second clamping column (222) and rotatably connected to the second clamping column (222); A first upper clamping claw (241) disposed above the first clamping column (221) and rotatably connected to the first clamping column (221); A second upper clamping claw (242) disposed above the second clamping column (222) and rotatably connected to the first clamping column (221); The first lower clamping claw (211) and the second lower clamping claw (212) are fixedly connected via a first clamping claw connecting rod (231), and the first upper clamping claw (241) and the second upper clamping claw (242) are fixedly connected via a second clamping claw connecting rod (232).

10. The automatic stacker according to claim 9, characterized in that: The transmission assembly (5) further comprises: a drive motor (7) fixedly connected to the second frame (12); a pulley (58) fixedly connected to the second frame (12), and a belt (56) arranged on the pulley (58); When in use, the driving motor (7) drives the belt (56) to rotate.

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