Stacker crane and production line

Abstract

The utility model provides a stacker crane and a production line, the stacker crane comprises a fixed frame, a movable frame, a bottom support and a swing assembly, a product stacking position and a product lifting position are arranged in the fixed frame, a forced pushing piece is arranged on the fixed frame, the movable frame and the fixed frame are in sliding fit in the vertical direction, the bottom support is rotatably connected with the movable frame, and the swing assembly is arranged on the bottom support. A product containing position is formed above the bottom supporting support, a bottom opening is formed below the product containing position, the bottom supporting support can rotate around the first rotating axis between the closing position for closing the bottom opening and the opening position for opening the bottom opening, and the swing assembly is rotationally connected with the movable frame. In the initial state, the swing assembly is in limiting fit with the bottom supporting support, and the bottom supporting support is kept at the closed position. When the movable frame moves upwards in the vertical direction relative to the fixed frame, the forced pushing piece applies acting force to the top of the swing assembly, the swing assembly is forced to rotate, the swing assembly applies acting force to the bottom supporting support, limiting between the swing assembly and the bottom supporting support is relieved, and the bottom supporting support rotates around the first rotating axis to the opening position. The stacker crane can achieve stacking of multiple layers of box bodies, and is simple in structure, low in cost and small in occupied space.

Description

Technical Field

[0001] The utility model relates to the technical field of palletizing devices, in particular to a palletizing machine and a production line. Background Art

[0002] Empty box palletizing is mostly done manually at production sites, but with the development of productivity and the increase in labor costs, automated palletizing has become urgent. Most of the existing solutions in the industry are gantry palletizers, which use servo motors to control the robotic arm to move the box at the specified position on the slide rail to achieve the purpose of palletizing. However, existing palletizers mostly use robotic arms to achieve the palletizing function, but due to various factors such as the high cost of robotic arms, high maintenance costs, and large floor space, they are rarely used in production lines with a high proportion of manpower.

[0003] The existing palletizers still have the following defects: First, the processing precision of the components of the palletizer robot arm is high, and the control system is complex, resulting in high costs for the palletizer; second, the maintenance cost of the palletizer robot arm is high, and electrical engineers are required to perform on-site maintenance and debugging; third, a certain safety area needs to be planned around the palletizer to avoid accidental injuries to employees when the palletizer robot arm is working; fourth, due to the large size of the palletizer and the need to reserve a certain safety distance, the logistics route needs to be replanned. Utility Model Content

[0004] The first object of the utility model is to provide a palletizer which can realize multi-layer box palletizing and has a simple structure, low cost and small space occupation.

[0005] The second object of the utility model is to provide a production line using the above-mentioned palletizer.

[0006] To achieve the above-mentioned first purpose, the utility model provides a palletizer, comprising: a fixed frame, a product stacking position and a product lifting position are provided in the fixed frame, the product lifting position is located above the product stacking position, and a forced pushing member is provided on the fixed frame; a mobile frame, the mobile frame and the fixed frame are slidably matched in the vertical direction; a bottom bracket, the bottom bracket is rotatably connected to the mobile frame, a product placement position is formed above the bottom bracket, a bottom opening is provided below the product placement position, and the bottom bracket can rotate around a first rotation axis between a closed position closing the bottom opening and an open position opening the bottom opening; a swing assembly, the swing assembly is rotatably connected to the mobile frame; in an initial state, the swing assembly and the bottom bracket are limitedly matched, and the bottom bracket is maintained in the closed position; as the mobile frame moves upward in the vertical direction relative to the fixed frame, the forced pushing member applies a force to the top of the swing assembly, forcing the swing assembly to rotate, and the swing assembly applies a force to the bottom bracket, releasing the limit between the swing assembly and the bottom bracket, and the bottom bracket rotates around the first rotation axis to the open position.

[0007] It can be seen from the above scheme that when the products need to be stacked, the palletizer works. In the initial state, the swing assembly cooperates with the bottom support bracket to limit the bottom support bracket, and the first carton and other stacked products are kept in the product placement position and move upward to the product lifting position along with the moving frame. At the same time, the second stacked product enters the product stacking position along with the production line. Then, the pushing member applies a force to the top of the swing assembly to rotate the swing assembly. Then, the swing assembly applies a force to the bottom support bracket to release the limit between the swing assembly and the bottom support bracket. The bottom support bracket rotates around the first rotation axis to the open position. The first stacked product falls into the second stacked product under the action of its own gravity. The above process is repeated to achieve palletizing of multiple products.

[0008] Since the palletizer can realize product palletizing only through the cooperation of mechanical structures, it does not require a complex control system or a high-precision robotic arm, so it has a simple structure and low cost. At the same time, the palletizer is small in size and occupies a small space. It can be directly set above the production line without affecting the original production path. In addition, the palletizer uses a single power to trigger and reset the bottom bracket, which improves the power utilization rate.

[0009] A preferred solution is that the forced push member includes a guide ramp, which gradually moves away from the center line of the fixed frame from the bottom end to the top end; the swing assembly includes a sliding part, which is slidably matched with the guide ramp.

[0010] It can be seen that the swinging of the swinging assembly can be achieved through the sliding cooperation between the sliding part and the guiding inclined rail, thereby providing a driving force for the bottom supporting bracket to move to the open position.

[0011] A further solution is that the swing assembly includes a guide wheel assembly and a limit assembly; the guide wheel assembly includes a rotating part, a guide support rod and a guide wheel, the rotating part is rotatably mounted on the movable frame, the second rotation axis of the rotating part is parallel to the first rotation axis, the rotating part is arranged in the middle of the guide support rod, the guide wheel is arranged at the top end of the guide support rod, the sliding part is located on the guide wheel, and a force-applying part is also provided on the guide support rod, and the force-applying part is located on the side of the rotating part away from the guide wheel; in an initial state, the limit assembly abuts against the bottom support bracket for limitation; the force-applying part can drive the limit assembly to move to a position separated from the bottom support bracket.

[0012] It can be seen that the setting of the guide wheel can reduce the friction between the guide wheel assembly and the guide ramp, thereby enabling the various components of the entire palletizer to move more smoothly. In addition, when the guide wheel is subjected to the force of the guide ramp, the end of the guide wheel assembly provided with the guide wheel will move along the extension direction of the guide ramp, and at the same time swing around the second rotation axis at a certain angle. In this process, the force-applying part on the guide support rod pushes the limit assembly to move to a position separated from the bottom bracket, and the bottom bracket can rotate around the first rotation axis to an open position under the action of its own gravity.

[0013] A further solution is that the first rotation axis extends along the first horizontal direction; the limit assembly includes a limit connection part, a force-bearing part and a limit part, the limit connection part is slidably connected to the fixed frame in the second horizontal direction, the second horizontal direction is perpendicular to the first horizontal direction, and in an initial state, the force-bearing part and the force-applying part cooperate in the second horizontal direction, and the limit part abuts against the bottom bracket.

[0014] It can be seen that in the initial state, the force-bearing part and the force-applying part cooperate with the upper limit in the second horizontal direction, and the limiting part abuts against the bottom support bracket, so that the bottom support bracket remains in the closed position. As the movable frame drives the guide wheel assembly and the limiting assembly to move upward, after the guide wheel assembly is acted upon by the guide ramp, the force-applying part applies a force to the force-bearing part of the limiting assembly, forcing the limiting assembly to move along the second horizontal direction toward the center line of the fixed frame, so that the limiting part is separated from the bottom support bracket.

[0015] A preferred solution is that the bottom support bracket includes a supporting bottom portion, a first support rod, a bottom support connecting portion, a second support rod and a bottom supporting roller; the bottom supporting connecting portion is rotatably mounted on the movable frame, the extension direction of the supporting bottom portion is parallel to the first rotation axis, the first support rod and the second support rod are arranged at an angle and are both connected to the bottom supporting connecting portion, the plane where the first support rod and the second support rod are located is arranged at an angle to the first rotation axis, the supporting bottom portion is arranged at an end of the first support rod away from the bottom supporting connecting portion, the bottom supporting roller is arranged at an end of the second support rod away from the bottom supporting connecting portion, and the axis of the bottom supporting roller is parallel to the first rotation axis.

[0016] It can be seen that by respectively arranging the supporting bottom portion and the supporting roller on the first support rod and the second support rod arranged at an angle, the supporting bracket can rotate around the first rotation axis under the action of its own gravity.

[0017] A further solution is that the palletizer further comprises a reset component, which is arranged close to the product stacking position and drives the bottom support bracket to move from the open position to the closed position.

[0018] It can be seen that the reset assembly can reset the bottom support to the closed position when it descends to the product stacking position, thereby lifting the stacked products located at the lower product stacking position.

[0019] A further solution is that the reset assembly includes a reset support and a reset roller, the reset roller is arranged on the top of the reset support, and the reset roller can drive the supporting bottom to rotate around the first rotation axis.

[0020] It can be seen that the setting of the reset roller can reduce the friction between the reset assembly and the bottom support bracket during the rotation and reset process of the bottom support bracket, thereby increasing the service life of the palletizer.

[0021] A further solution is that the number of the reset components is more than two, and the multiple reset components are arranged along the extension direction of the supporting bottom portion.

[0022] It can be seen that the multiple reset components can ensure the stability of the rotation of the bottom support bracket and at the same time, can achieve stable support for the bottom support bracket.

[0023] A preferred solution is that the number of the bottom supporting brackets and the number of the swinging components are both more than two, wherein the two bottom supporting brackets are arranged relatively to each other along the second horizontal direction, and one swinging component is arranged corresponding to one bottom supporting bracket.

[0024] It can be seen that by providing a bottom support and a swing assembly on both sides of the opposite sides of the stacked product, it is possible to ensure that the stacked product is subjected to balanced force in the circumferential direction, and can fall more stably downward into another stacked product, thereby achieving stacking of the two.

[0025] A preferred solution is that the palletizer further comprises a driving member, which drives the movable frame to move between the product stacking position and the product lifting position, so that the movable frame drives the bottom support to move.

[0026] It can be seen that the palletizer only needs to have one power source, namely the driving member, to realize the palletizing of multiple products, thereby simplifying the control system and reducing costs.

[0027] A preferred solution is that a limit strip is provided on the inner wall of the fixed frame near the product lifting position, and the limit strip extends along the vertical direction.

[0028] A further solution is that the number of the limiting strips is more than two, and the plurality of limiting strips are arranged along the circumference of the fixed frame.

[0029] It can be seen that the limit strip is used to shape the cartons lifted to that position, and at the same time exert a certain friction force on the cartons when they fall down for stacking, so as to prevent the upper cartons from exerting a large impact force on the lower cartons.

[0030] In order to achieve the above second purpose, the utility model provides a production line, including the above palletizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a stereogram of an embodiment of the palletizer of the present utility model.

[0032] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0033] Figure 3 It is a left view of an embodiment of the utility model palletizer.

[0034] Figure 4 It is a three-dimensional diagram of a movable frame and a bottom support bracket in an embodiment of the palletizer of the utility model.

[0035] Figure 5 It is a left view of a movable frame and a bottom support bracket in an embodiment of the palletizer of the utility model.

[0036] Figure 6 It is a structural diagram of the limiting assembly in the embodiment of the palletizer of the utility model.

[0037] Figure 7 It is a partial enlarged view of an embodiment of the utility model palletizer.

[0038] Figure 8 It is a structural diagram of an embodiment of the palletizer of the utility model in an initial state.

[0039] Fig. 9 It is a state diagram of the guide wheel in the guide wheel assembly in the embodiment of the palletizer of the utility model during the process of moving along the guide ramp.

[0040] Fig.10 is Fig. 9 Position relationship diagram of the mobile frame, guide wheel assembly and bottom support in the state.

[0041] Fig.11 This is a state diagram of the guide wheel assembly and the bottom support bracket after they are reset in the embodiment of the palletizer of the utility model.

[0042] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0043] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is by no means intended to limit the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully express the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0044] The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0045] In the present invention, when a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediate device, or may not be directly connected to the other devices but have an intermediate device.

[0046] All terms (including technical terms or scientific terms) used in the present invention have the same meanings as those understood by ordinary technicians in the field, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0047] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0048] See also Figures 1 to 3 The production line of this embodiment includes a conveying track and a palletizer, and the palletizer is arranged at the downstream end of the conveying direction of the conveying track. The palletized product of this embodiment is a carton.

[0049] The palletizer comprises a fixed frame 1, a movable frame 2, a bottom support 3, a swing assembly 4, a reset assembly 5 and a driving member (not shown).

[0050] The fixed frame 1 is assembled from a plurality of lean pipes and pipe joints and is in a rectangular parallelepiped shape. A product stacking position 101 and a product lifting position 102 are provided in the fixed frame 1. In the vertical direction (i.e., the Z-axis direction), the product lifting position 102 is located above the product stacking position 101. The driving member drives the mobile frame 2 to move between the product stacking position 101 and the product lifting position 102, so that the mobile frame 2 drives the bottom support 3 and the carton placed on the bottom support 3 to move. Optionally, the driving member is a cylinder.

[0051] Four elongated limiting strips 11 extending along the Z-axis direction are arranged on the inner wall of the fixed frame 1 near the product lifting position 102. The four limiting strips 11 are arranged along the circumference of the fixed frame 1 and near the four corners of the fixed frame 1, and are used to shape the cartons lifted there, and to apply a certain friction force to the cartons when they fall and are stacked, so as to prevent the cartons above from exerting a large impact force on the cartons below. In addition, in order to prevent the cartons from interfering with the limiting strips 11 during the rising process, the lower end of each limiting strip 11 is bent toward the outside of the fixed frame 1.

[0052] Two groups of forced pushing members 12 are provided on the fixed frame 1, and each forced pushing member 12 is arranged near the product lifting position 102. The two groups of forced pushing members 12 are arranged on both sides of the Y-axis direction of the fixed frame 1. Each group of forced pushing members 12 includes two forced pushing members 12, and the two forced pushing members 12 in the same group are arranged along the X-axis direction.

[0053] Each forced pushing member 12 includes a forced pushing support rod 121 and a guide ramp 122. Each guide ramp 122 is fixed to the fixed frame 1 through the corresponding forced pushing support rod 121, and each guide ramp 122 gradually moves away from the center line of the fixed frame 1 from the bottom end to the top end.

[0054] The fixed frame 1 is provided with a guide rail 13 extending in the vertical direction, the mobile frame 2 is slidably matched with the guide rail 13, the bottom support bracket 3 is rotatably connected with the mobile frame 2, a product placement position 30 is formed above the bottom support bracket 3, a bottom opening 301 is provided below the product placement position 30, and the bottom support bracket 3 can rotate around a first rotation axis between a closed position closing the bottom opening 301 and an open position opening the bottom opening 301. The first rotation axis extends along a first horizontal direction (i.e., the X-axis direction).

[0055] There are two bottom brackets 3 and two swing assemblies 4, and the two bottom brackets 3 are arranged opposite to each other along the second horizontal direction, and one swing assembly 4 is arranged corresponding to one bottom bracket 3. There are two groups of reset assemblies 5, one group of reset assemblies 5 is arranged under each bottom bracket 3, each group of reset assemblies 5 includes two reset assemblies 5, and the reset assemblies 5 in the same group are arranged along the extension direction of the bottom bracket 3.

[0056] See also Figures 4 to 7Each bottom support bracket 3 includes a bottom support 31, two first support rods 32 arranged in parallel, two bottom support connecting parts 33 arranged coaxially, two second support rods 34 arranged in parallel and two bottom support rollers 35 arranged coaxially. The bottom support connecting part 33 is rotatably mounted on the mobile frame 2, the extension direction of the bottom support 31 is parallel to the first rotation axis, the first support rod 32 and the second support rod 34 are arranged at an angle and are both connected to the bottom support connecting part 33, the plane where the first support rod 32 and the second support rod 34 are located is arranged at an angle to the first rotation axis, preferably, the first support rod 32 and the second support rod 34 are arranged vertically, and the first rotation axis is perpendicular to the plane where the first support rod 32 and the second support rod 34 are located. The bottom support 31 is arranged at one end of the first support rod 32 away from the bottom support connecting part 33, the bottom support roller 35 is arranged at one end of the second support rod 34 away from the bottom support connecting part 33, and the axis of the bottom support roller 35 is parallel to the first rotation axis.

[0057] Each supporting bottom portion 31 includes a support plate 311, a counterweight tube 312 and two coplanar reset force plates 313. In the initial state, the support plate 311 is horizontal and extends in the X-axis direction. The reset force plate 313 is arranged parallel to the support plate 311. The counterweight tube 312 is arranged at the bottom of the support plate 311 and parallel to the support plate 311. The reset force plates 313 are arranged at both ends of the support plate 311. Each reset force plate 313 is arranged opposite to a reset component 5 in the vertical direction. In the initial state, the reset component 5 provides support force to the corresponding reset force plate 313.

[0058] The swing assembly 4 is rotatably connected to the mobile frame 2. In the initial state, the swing assembly 4 is limitedly matched with the bottom support bracket 3, and the bottom support bracket 3 is kept in the closed position; as the mobile frame 2 moves upward in the vertical direction relative to the fixed frame 1, the push member 12 applies a force to the top of the swing assembly 4, forcing the swing assembly 4 to rotate, and the swing assembly 4 applies a force to the bottom support bracket 3 to release the limit between the swing assembly 4 and the bottom support bracket 3, and the bottom support bracket 3 rotates around the first rotation axis to the open position.

[0059] The swing assembly 4 includes a guide wheel assembly 6 and a limit assembly 7. Each guide wheel assembly 6 includes a rotating part 61, two parallel guide support rods 62 and two coaxial guide wheels 63. The rotating part 61 is rotatably mounted on the mobile frame 2. The second rotation axis of the rotating part 61 is parallel to the first rotation axis. The rotating part 61 is arranged in the middle of the guide support rod 62 and is vertically connected to the two guide support rods 62. One guide wheel 63 is correspondingly arranged at the top end of one guide support rod 62. Each guide wheel 63 has a sliding part 631. The sliding part 631 is slidably matched with the corresponding guide ramp 122. A force-applying part 621 is also provided at a position near the bottom end of the guide support rod 62. The force-applying part 621 is located on the side of the rotating part 61 away from the guide wheel 63. In the initial state, the limit assembly 7 is abutted against the bottom bracket 3 for limit. The force-applying part 621 can drive the limit assembly 7 to move to a position separated from the bottom bracket 3. The provision of the guide wheel 63 can reduce the friction between the guide wheel assembly 6 and the guide ramp 122, thereby enabling the various components of the entire palletizer to move more smoothly.

[0060] The limiting assembly 7 includes a horizontally arranged limiting frame 701 and two limiting rods 702 extending in the vertical direction. The limiting frame 701 extends along the X-axis direction. The two limiting rods 702 are respectively arranged at both ends of the limiting frame 701 in the X-axis direction and extend upward from the limiting frame 701.

[0061] The limiting frame 701 is provided with a limiting connection part 71 and a force-bearing part 72, and a limiting part 73 is provided at the top end of each limiting rod 702. The limiting connection part 71 is slidably connected with the fixed frame 1 in the second horizontal direction (i.e., the Y-axis direction). Specifically, the fixed frame 1 is provided with a frame slide rail 14 extending along the Y-axis direction, and the limiting connection part 71 is slidably matched with the frame slide rail 14. In the initial state, the force-bearing part 72 is limitedly matched with the force-applying part 621 in the second horizontal direction, and the limiting part 73 is in contact with the bottom supporting roller 35 of the bottom supporting bracket 3 and is tilted toward the bottom supporting roller 35, so that the bottom supporting bracket 3 is kept in the closed position.

[0062] The reset assembly 5 is arranged near the product stacking position 101, and the reset assembly 5 drives the bottom support 3 to move from the open position to the closed position. Each reset assembly 5 includes a reset support 51 and a reset roller 52, and the reset roller 52 is arranged on the top of the reset support 51, and the reset roller 52 can drive the bottom support 31 to rotate around the first rotation axis. The axis of rotation of the reset roller 52 around the reset support 51 is parallel to the first rotation axis. The setting of the reset roller 52 can reduce the friction between the reset assembly 5 and the bottom support 3 during the rotation and reset process of the bottom support 3, thereby increasing the service life of the palletizer.

[0063] Combination Figures 8 to 11, the working process of the palletizer of the utility model is described as follows.

[0064] First, the first carton is transported to the palletizer by the conveyor track. Figure 8 As shown, the mobile frame 2 is located on the product stacking position 101 in the fixed frame 1, the limiting portion 73 abuts against the bottom roller 35 of the bottom support 3 in the Y-axis direction, and the limiting portion 73 is located on the outside of the bottom roller 35 to limit the bottom support 3 so that the bottom support 3 remains in the closed position. The first carton is conveyed to the product placement position 31 and supported by the bottom portion 31 of the bottom support 3. At this time, the product placement position 31 and the product stacking position 101 overlap. At this time, the limiting connection portion 71 of the limiting assembly 7 is located at one end of the frame slide rail 14, and the guide support rod 62 of the guide wheel assembly 6 is in a vertical state. At the same time, the reset assembly 5 supports the bottom portion 31 from below the bottom portion 31. The state of each component at this time is the above-mentioned initial state.

[0065] Next, the driving member drives the moving frame 2 and drives the bottom support 3 and the swing assembly 4 to move upward together. During this process, the limiting portion 73 always remains in the position of contacting with the bottom support roller 35 to limit the bottom support 3. At the same time, when the first carton moves upward to completely leave the product stacking position 101, the second carton is conveyed by the conveying track to the product stacking position 101 in the palletizer.

[0066] Next, when the mobile frame 2 moves to the position where the guide wheel 63 contacts the guide ramp 122, Fig. 9 and Fig.10 As shown, as the mobile frame 2 continues to move upward, the guide wheel 63 moves along the guide ramp 122, and at the same time, the guide support rod 62 and the rotating part 61 swing together around the second rotation axis at a certain angle. Based on the lever principle, the force-applying part 621 on the guide support rod 62 applies a force along the Y-axis direction to the force-bearing part 72 of the limiting assembly 7, pushing the limiting assembly 7 to move along the Y-axis toward the center line of the fixed frame 1. After the limiting part 73 moves the bottom roller 35 of the bottom support bracket 3, the limiting part 73 moves to the side of the bottom roller 35 close to the center line of the fixed frame 1, and the limiting part 73 separates from the bottom roller 35 and releases the limit on the bottom roller 35. At this time, under the action of the self-gravity of the bottom supporting part 31, the bottom supporting bracket 3 rotates around the first rotation axis, and the bottom supporting part 31 moves from the closed position to the open position. The first carton falls into the second carton under the action of its own gravity.

[0067] Then, the driving member drives the moving frame 2 to move and drives the bottom bracket 3 and the swing assembly 4 to move downward together, such as Fig.11As shown, when the bottom support part 31 contacts the reset roller 52 of the reset assembly 5, the reset roller 52 applies a force to the bottom support part 31, forcing the bottom support bracket 3 to rotate in the opposite direction to the closed position and support the second carton below it. At the same time, the guide wheel assembly 6 and the limit assembly 7 are reset, and the limit part 73 cooperates with the bottom support roller 35 to limit, and all components are reset to the initial state.

[0068] Repeat the above process to achieve palletizing of multiple cartons.

[0069] As can be seen from the above, when the product needs to be palletized, the palletizer works. In the initial state, the swing assembly cooperates with the bottom bracket limit, the bottom bracket remains in the closed position, the first carton and other palletized products are kept at the product placement position, and move upward to the product lifting position with the moving frame. At the same time, the second palletized product enters the product stacking position with the production line. Then, the push member applies a force to the top of the swing assembly to rotate the swing assembly. Then, the swing assembly applies a force to the bottom bracket to release the limit between the swing assembly and the bottom bracket. The bottom bracket rotates around the first rotation axis to the open position. The first palletized product falls into the second palletized product under its own gravity. Repeat the above process to achieve the palletizing of multiple products. Since the palletizer can achieve the palletizing of products only through the mutual cooperation of mechanical structures, it does not require a complex control system, nor does it require a high-precision robotic arm, so it has a simple structure and low cost. At the same time, the palletizer is small in size and occupies a small space. It can be directly set above the production line without affecting the original production path. In addition, the palletizer adopts a single power to trigger and reset the bottom support, which improves the power utilization rate.

[0070] In addition, the number of the bottom bracket and the swing assembly can also be one, or the number of the bottom bracket and the swing assembly can also be more than two, wherein the two bottom brackets are relatively arranged along the second horizontal direction, and one swing assembly is arranged corresponding to one bottom bracket. An elastic reset member can also be arranged between the moving frame and the limiting assembly. The elastic reset member can be a spring, and the two ends of the spring respectively abut the limiting connection parts of the moving frame and the limiting assembly. When the guide wheel assembly is separated from the guide ramp, the elastic restoring force of the spring forces the limiting assembly to reset. The above changes can also achieve the purpose of the utility model.

[0071] Finally, it should be emphasized that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Palletizer, characterized in that: include: A fixed frame, wherein a product stacking position and a product lifting position are provided in the fixed frame, the product lifting position is located above the product stacking position, and a forced pushing member is provided on the fixed frame; A movable frame, wherein the movable frame and the fixed frame are slidably matched in a vertical direction; A bottom support bracket, the bottom support bracket is rotatably connected to the mobile frame, a product placement position is formed above the bottom support bracket, a bottom opening is provided below the product placement position, and the bottom support bracket can rotate around a first rotation axis between a closed position for closing the bottom opening and an open position for opening the bottom opening; A swing assembly, the swing assembly being rotatably connected to the moving frame; In the initial state, the swing assembly and the bottom support bracket are limitedly matched, and the bottom support bracket is kept in the closed position; As the movable frame moves upward in the vertical direction relative to the fixed frame, the pushing member applies a force to the top of the swing assembly, forcing the swing assembly to rotate, and the swing assembly applies a force to the bottom support bracket to release the limit between the swing assembly and the bottom support bracket, and the bottom support bracket rotates around the first rotation axis to the open position.

2. The palletizer according to claim 1, characterized in that: The forced push member includes a guide ramp, and the guide ramp gradually moves away from the center line of the fixed frame from the bottom end to the top end; The swing assembly includes a sliding portion, and the sliding portion is slidably matched with the guide ramp.

3. The palletizer according to claim 2, characterized in that: The swing assembly includes a guide wheel assembly and a limit assembly; The guide wheel assembly comprises a rotating part, a guide support rod and a guide wheel, the rotating part is rotatably mounted on the mobile frame, the second rotation axis of the rotating part is parallel to the first rotation axis, the rotating part is arranged in the middle of the guide support rod, the guide wheel is arranged at the top end of the guide support rod, the sliding part is located on the guide wheel, and the guide support rod is also provided with a force applying part, and the force applying part is located on a side of the rotating part away from the guide wheel; In the initial state, the limiting assembly abuts against the bottom support to limit the position; The force applying portion can drive the limiting assembly to move to a position separated from the bottom supporting bracket.

4. The palletizer according to claim 3, characterized in that: The first rotation axis extends along a first horizontal direction; The limiting assembly includes a limiting connection part, a force-bearing part and a limiting part. The limiting connection part is slidably connected to the fixed frame in a second horizontal direction. The second horizontal direction is perpendicular to the first horizontal direction. In the initial state, the force-bearing part and the force-applying part cooperate in the second horizontal direction, and the limiting part abuts against the bottom support bracket.

5. The palletizer according to any one of claims 1 to 4, characterized in that: The bottom supporting bracket comprises a bottom supporting portion, a first supporting rod, a bottom supporting connecting portion, a second supporting rod and a bottom supporting roller; The bottom supporting connection portion is rotatably mounted on the movable frame, the extension direction of the bottom supporting portion is parallel to the first rotation axis, the first support rod and the second support rod are arranged at an angle and are both connected to the bottom supporting connection portion, the plane where the first support rod and the second support rod are located is arranged at an angle to the first rotation axis, the bottom supporting portion is arranged at an end of the first support rod away from the bottom supporting connection portion, the bottom supporting roller is arranged at an end of the second support rod away from the bottom supporting connection portion, and the axis of the bottom supporting roller is parallel to the first rotation axis.

6. The palletizer according to claim 5, characterized in that: The palletizer further comprises a reset component, which is disposed close to the product stacking position and drives the bottom support bracket to move from the open position to the closed position.

7. The palletizer according to claim 6, characterized in that: The reset assembly includes a reset support and a reset roller. The reset roller is arranged on the top of the reset support. The reset roller can drive the supporting bottom portion to rotate around the first rotation axis.

8. The palletizer according to claim 6, characterized in that: The number of the reset components is more than two, and the plurality of reset components are arranged along the extension direction of the supporting bottom portion.

9. The palletizer according to any one of claims 1 to 4, characterized in that: The number of the bottom supporting brackets and the number of the swinging components are both more than two, wherein the two bottom supporting brackets are arranged relatively along the second horizontal direction, and one swinging component is arranged correspondingly to one bottom supporting bracket.

10. The palletizer according to any one of claims 1 to 4, characterized in that: The palletizer further comprises a driving member, which drives the movable frame to move between the product stacking position and the product lifting position, so that the movable frame drives the bottom supporting bracket to move.

11. The palletizer according to any one of claims 1 to 4, characterized in that: A limit strip is arranged on the inner wall of the fixed frame near the product lifting position, and the limit strip extends along the vertical direction.

12. The palletizer according to claim 11, characterized in that: The number of the limiting strips is more than two, and the plurality of limiting strips are arranged along the circumference of the fixing frame.

13. A production line, characterized in that Comprising the palletizer according to any one of claims 1 to 12.

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