Clamp for carton stacking machine

Abstract

The utility model discloses a clamp for a carton stacking machine, and belongs to the technical field of stacking devices. Comprising a mounting frame connected with a mechanical arm of the stacker crane; the two connecting frames are symmetrically mounted on the mounting frame; the rotating shaft is fixed on the connecting frame and is in running fit with the mounting frame; the clamping plate is fixed on the connecting frame; the clamping air cylinder is mounted on the mounting frame, and a rotating shaft end is arranged on the clamping air cylinder; a sliding block is slidably arranged on the clamping plate, a rotating rod is rotatably installed on the sliding block, connecting rods are fixed to the two ends of the rotating rod, and supporting rods are fixed to the connecting rods. The clamp for the carton stacking machine has the beneficial effects that the two sides of a carton can be clamped through the two arranged clamping plates, after the carton is clamped and taken, the supporting rods move to the lower side of the carton to support the carton, and the carton is prevented from sliding off in the carrying and stacking process.

Description

Technical Field

[0001] This application relates to the field of palletizing equipment technology, and more specifically, to a clamp for a carton palletizing machine. Background Technology

[0002] Palletizers typically use robotic arms to grip and move goods using clamps mounted on the arms. The clamps are a crucial component of carton palletizers, providing the foundation for efficient palletizing. However, they still have certain problems: existing carton palletizer clamps generally use two clamping plates to hold the carton for palletizing. However, during the gripping and handling process, the clamping plates can slip off the carton as the palletizer moves, making it easy for the carton to fall. Therefore, limiting claws are usually installed on the underside of the clamping plates to limit the bottom of the carton. However, this means that when the clamping plates are gripping, the limiting claws need to be inserted into the bottom of the carton, which can easily squeeze the carton. To address these issues, there is an urgent need to develop a new type of clamp for carton palletizers to overcome the shortcomings in current applications and meet current needs.

[0003] Therefore, a fixture for a carton palletizer is needed to solve the above problems. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a clamp for a carton palletizing machine, comprising: a mounting frame connected to the robotic arm of the palletizing machine; two connecting frames symmetrically mounted on the mounting frame; a rotating shaft fixed to the connecting frame, the rotating shaft rotatingly engaging with the mounting frame to allow the connecting frame to deflect around the axis of the rotating shaft; a clamping plate fixed to the connecting frame; a clamping cylinder mounted on the mounting frame, the clamping cylinder having a rotating shaft end that rotatably engages with the mounting frame, and one end of the piston rod of the clamping cylinder hinged to the connecting frame; a sliding block slidably mounted on the clamping plate, a rotating rod rotatably mounted on the sliding block, connecting rods fixed at both ends of the rotating rod, and a support rod fixed to the connecting rod, the support rod supporting the underside of the carton to prevent the carton from slipping.

[0006] The two clamping plates can hold the sides of the carton, and the support rods can move to the bottom of the carton after it is clamped and taken out, thus supporting the carton and preventing it from slipping during handling and stacking.

[0007] Furthermore, a guide frame is fixedly connected to the clamping plate, the sliding block slides with the guide frame, a support cylinder is fixedly connected to the clamping plate, one end of the piston rod of the support cylinder is fixedly connected to the sliding block, and the sliding block is driven to slide through the support cylinder. A gear is fixedly connected to the rotating rod.

[0008] When the rotating rod rotates, it drives the connecting rod and the support rod to move, causing the support rod to be lower than the bottom surface of the carton. Then, by rotating the rotating rod, the support rod can move to the bottom of the carton to provide support.

[0009] Furthermore, the sliding block has an opening slot to accommodate the gear, and the guide frame is equipped with a rack. The rotating rod is driven to move through the connecting plate, so that the rack meshes with the gear and drives the rotating rod to rotate.

[0010] With the rack and pinion mechanism in place, when the sliding block drives the rotating rod downwards, it first drives the connecting rod and the support rod downwards, which then causes the gear and rack to mesh, driving the rotating rod to rotate and causing the support rod to deflect to the bottom of the carton.

[0011] Furthermore, the rack slides on the guide frame, and a connecting plate is fixedly connected to one end of the rack. An adjusting screw is rotatably connected to the guide frame. The adjusting screw passes through the connecting plate and is threadedly connected to the connecting plate. Rotating the adjusting screw drives the rack to move.

[0012] By using a connecting plate and adjusting screw, when it is necessary to accommodate cartons of different heights, the position of the rack can be adjusted by rotating the pressing electric cylinder. This allows the rotating rod to move downwards to a predetermined distance before the gear and rack mesh, thus enabling the use of cartons of different heights.

[0013] Furthermore, multiple sets of limiting rods are installed on the rotating rod. The limiting rods deflect as the rotating rod rotates, and the clamping plate has a passage groove for the limiting rods to pass through.

[0014] With multiple sets of limiting rods, when the rotating rod rotates, the limiting rods can deflect to the side of the carton to limit the carton and prevent it from slipping during handling and stacking.

[0015] Furthermore, a collar is fixedly connected to one end of the limiting rod. The collar is sleeved on the rotating rod and rotates in cooperation with the rotating rod. A torsion spring is connected between the collar and the torsion spring.

[0016] With the help of the torsion spring, when the rotating rod rotates, the limiting rods located on both sides of the carton can deflect to both sides of the carton, and at the same time, the limiting rods located in the carton area abut against the carton to further limit the carton.

[0017] Furthermore, a pressing electric cylinder is fixedly connected to the connecting frame, and a pressing plate is fixedly connected to one end of the piston rod of the pressing electric cylinder.

[0018] With the setting of electric cylinder and pressing plate, when the two clamping plates clamp the left and right sides of the carton, the top of the carton may bulge. The pressing plate can prevent the carton from deforming and also limit the position of the carton.

[0019] Furthermore, the support rod is fitted with an abutment wheel that rotates with the support rod, and the abutment wheel rolls against the lower end face of the carton.

[0020] With the addition of abutment wheels, when the support rod moves to the bottom of the carton, the abutment wheels can roll on the bottom surface of the carton, preventing the support rod from directly contacting and rubbing against the carton, which could damage the carton.

[0021] The beneficial effects of this application are as follows:

[0022] 1. The two clamping plates can clamp the sides of the carton. The support rod moves to the bottom of the carton after the carton is clamped and taken out, supporting the carton and preventing it from slipping during handling and stacking.

[0023] 2. By using the connecting plate and adjusting screw, when it is necessary to adapt to cartons of different heights, the position of the rack can be adjusted by rotating the pressing electric cylinder. This allows the rotating rod to move downwards to a predetermined distance before the gear and rack mesh, thus enabling the use of cartons of different heights.

[0024] 3. With multiple sets of limiting rods, when the rotating rod rotates, the limiting rods can deflect to the side of the carton to limit the carton and prevent it from slipping during handling and stacking. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0026] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0027] In the attached diagram:

[0028] Figure 1 This is an overall schematic diagram according to one embodiment of the present application;

[0029] Figure 2 yes Figure 1 A schematic diagram of the installation structure of the clamping cylinder in the embodiment;

[0030] Figure 3 yes Figure 1A schematic diagram of the connection between the connecting rod and the support rod in the embodiment;

[0031] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle;

[0032] Figure 5 yes Figure 1 A schematic diagram of the clamping plate clamping the carton in the embodiment described above;

[0033] Figure 6 yes Figure 1 The installation diagram of the limit rod in the embodiment is shown.

[0034] Figure label:

[0035] 10. Mounting bracket; 11. Rotating shaft; 12. Connecting bracket; 13. Clamping plate; 14. Clamping cylinder; 15. Rotating shaft end; 16. Pressing electric cylinder; 17. Pressing plate; 18. Sliding block; 19. Rotating rod; 20. Connecting rod; 21. Support rod; 22. Abutment wheel; 23. Limiting rod; 24. Guide frame; 25. Opening slot; 26. Adjusting screw; 27. Rack; 28. Connecting plate; 29. ​​Gear; 30. Collar; 31. Torsion spring; 32. Supporting cylinder; 33. Through slot. Detailed Implementation

[0036] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0037] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0038] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0039] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0040] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] Reference Figure 1-6 A clamp for a carton palletizing machine includes: a mounting frame 10, a connecting frame 12, a rotating shaft 11, a clamping plate 13, a clamping cylinder 14, a rotating shaft end 15, a sliding block 18, a rotating rod 19, a connecting rod 20, and a support rod 21. The mounting frame 10 is connected to the robotic arm of the palletizing machine, which can refer to existing technology. Two connecting frames 12 are symmetrically mounted on the mounting frame 10. The connecting frames 12 and the mounting frame 10 are connected by the rotating shaft 11, which is fixed to the connecting frame 12. The two ends of the rotating shaft 11 are rotatably engaged with the mounting frame 10, allowing the two connecting frames 12 to deflect relative to the mounting frame 10. A clamping plate 13 is fixed on the connecting frame 12. When the two connecting frames 12 deflect around the axis of the rotating shaft 11, the two clamping plates 13 can move closer or further apart. A clamping cylinder 14 is rotatably mounted on the mounting frame 10. A rotating shaft end 15 is fixed to the clamping cylinder 14, and the rotating shaft end 15 is rotatably engaged with the mounting frame 10. One end of the piston rod of the clamping cylinder 14 is hinged to the connecting frame 12. When one end of the piston rod of the clamping cylinder 14 extends, the connecting frame 12 deflects around the axis of the rotating shaft 11, thereby driving two opposing clamping plates 13 to move closer together and clamp the left and right sides of the carton. When one end of the piston rod of the clamping cylinder 14 retracts, the two opposing clamping plates 13 move away from each other. A pressing electric cylinder 16 is fixedly connected to the connecting frame 12, and a pressing plate 17 is fixedly connected to one end of the piston rod of the pressing electric cylinder 16. The pressing plate 17 presses against the upper side of the carton.

[0042] A guide frame 24 is fixedly connected to the clamping plate 13. A sliding block 18 is provided on the clamping plate 13 and slidably engages with the guide frame 24. A support cylinder 32 is fixedly connected to the clamping plate 13. One end of the piston rod of the support cylinder 32 is fixedly connected to the sliding block 18, and the sliding block 18 is driven to slide by the support cylinder 32. A rotating rod 19 is rotatably connected to the sliding block 18. A rack 27 is provided on the guide frame 24. A gear 29 is fixed on the rotating rod 19. An opening slot 25 for accommodating the gear 29 is provided on the sliding block 18. When the rotating rod 19 moves with the sliding block 18, causing the gear 29 to mesh with the rack 27, it can drive the rotating rod 19 to move downwards and rotate simultaneously. The rack 27 is slidably engaged with the guide frame 24. A connecting plate 28 is fixedly connected to one end of the rack 27. An adjusting screw 26 is rotatably connected to the guide frame 24. The adjusting screw 26 passes through the connecting plate 28 and is threadedly connected to the connecting plate 28. Rotating the adjusting screw 26 drives the rack 27 to move.

[0043] The two ends of the rotating rod 19 are fixedly connected to the connecting rod 20, and a support rod 21 is fixedly connected between the two connecting rods 20. When the rotating rod 19 rotates, it can drive the connecting rod 20 to deflect, thereby driving the support rod 21 to move to the underside of the carton.

[0044] Four sets of limiting rods 23 are installed on the rotating rod 19. One end of each limiting rod 23 is fixedly connected to a collar 30, which is sleeved on the rotating rod 19 and rotates in coordination with it. A torsion spring 31 is connected between the collar 30 and the torsion spring 31, with both ends of the torsion spring 31 fixedly connected to the collar 30 and the rotating rod 19, respectively. The limiting rods 23 deflect as the rotating rod 19 rotates. The clamping plate 13 has a passage groove 33 for the limiting rods 23 to pass through. When the rotating rod 19 rotates, it can drive the limiting rods 23 to deflect, allowing the limiting rods 23 to move to the front and rear sides of the carton, thus limiting the front and rear direction of the carton.

[0045] Working process or usage method:

[0046] In the initial state, the support rod 21 is flush with the lower end of the clamping plate 13, and the connecting rod 20 is vertical and parallel to the clamping plate 13.

[0047] 1. The mounting frame 10 moves to the carton position under the action of the robotic arm. At this time, the two clamping plates 13 are located on the left and right sides of the carton. Through the clamping cylinder 14, the two clamping plates 13 clamp the left and right sides of the carton.

[0048] 2. When the carton is lifted, the support cylinder 32 extends, causing the sliding block 18 to move. At this time, the gear 29 is not engaged with the rack 27. The movement of the sliding block 18 causes the rotating rod 19, connecting rod 20, and support rod 21 to move downwards, so that the support rod 21 moves to the underside of the carton. Then, the gear 29 begins to engage with the rack 27. At this time, the rotating rod 19 rotates, causing the connecting rod 20 to deflect, which in turn causes the support rod 21 to move towards the center of the carton. The abutment wheel 22 abuts against the underside of the carton and rolls. At this time, the support rod 21 can support the carton.

[0049] 3. When it is necessary to adjust the downward movement distance of the support rod 21 according to the height of the carton, the position of the rack 27 can be adjusted by rotating the adjusting screw 26, thereby controlling the downward movement distance of the support rod 21.

[0050] 4. When the rotating rod 19 deflects, it will drive the limiting rod 23 to deflect. The limiting rod 23 located on the front and rear sides of the carton will deflect to the front and rear sides of the carton to limit the carton. At the same time, the limiting rod 23 in the carton area will abut against the carton under the action of the torsion spring 31 to further limit the carton. At the same time, the pressing electric cylinder 16 is activated so that the pressing plate 17 abuts against the top of the carton to prevent the top of the carton from bulging and deforming.

[0051] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A gripper for a carton piler, characterized in that, include: Mounting bracket (10) is connected to the robotic arm of the palletizer; Two connecting brackets (12) are symmetrically installed on the mounting bracket (10); A rotating shaft (11) is fixed on a connecting frame (12). The rotating shaft (11) and the mounting frame (10) are rotatably engaged, so that the connecting frame (12) deflects around the axis of the rotating shaft (11). The clamping plate (13) is fixed on the connecting frame (12); A clamping cylinder (14) is mounted on a mounting frame (10). A rotating shaft end (15) is provided on the clamping cylinder (14). The rotating shaft end (15) is rotatably engaged with the mounting frame (10). One end of the piston rod of the clamping cylinder (14) is hinged to the connecting frame (12). A sliding block (18) is slidably provided on the clamping plate (13), and a rotating rod (19) is rotatably installed on the sliding block (18). A connecting rod (20) is fixed at both ends of the rotating rod (19), and a support rod (21) is fixed on the connecting rod (20). The support rod (21) supports the bottom of the carton to prevent the carton from slipping.

2. The clamp for a carton palletizer according to claim 1, characterized in that: A guide frame (24) is fixedly connected to the clamping plate (13), and the sliding block (18) is slidably engaged with the guide frame (24). A support cylinder (32) is fixedly connected to the clamping plate (13), and one end of the piston rod of the support cylinder (32) is fixedly connected to the sliding block (18). The support cylinder (32) drives the sliding block (18) to slide. A gear (29) is fixedly connected to the rotating rod (19).

3. A clamp for a carton palletizer according to claim 2, characterized in that: The sliding block (18) has an opening slot (25) for accommodating the gear (29), and the guide frame (24) is provided with a rack (27). The rotating rod (19) is driven to move through the connecting plate (28), so that the rack (27) meshes with the gear (29) and drives the rotating rod (19) to rotate.

4. A clamp for a carton palletizer according to claim 3, characterized in that: The rack (27) slides on the guide frame (24). One end of the rack (27) is fixedly connected to a connecting plate (28). An adjusting screw (26) is rotatably connected to the guide frame (24). The adjusting screw (26) passes through the connecting plate (28) and is threadedly connected to the connecting plate (28). Rotating the adjusting screw (26) drives the rack (27) to move.

5. A clamp for a carton palletizer according to claim 4, characterized in that: Multiple sets of limiting rods (23) are installed on the rotating rod (19). The limiting rods (23) deflect as the rotating rod (19) rotates. The clamping plate (13) is provided with a passage groove (33) for the limiting rods (23) to pass through.

6. A clamp for a carton palletizer according to claim 5, characterized in that: One end of the limiting rod (23) is fixedly connected to a collar (30), which is sleeved on the rotating rod (19) and rotates in cooperation with the rotating rod (19). A torsion spring (31) is connected between the collar (30) and the torsion spring (31).

7. A clamp for a carton palletizer according to claim 6, characterized in that: A pressing electric cylinder (16) is fixedly connected to the connecting frame (12), and a pressing plate (17) is fixedly connected to one end of the piston rod of the pressing electric cylinder (16).

8. A clamp for a carton palletizer according to claim 7, characterized in that: The support rod (21) is fitted with an abutment wheel (22) that rotates with the support rod (21), and the abutment wheel (22) rolls against the lower end face of the carton.

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