Mechanical gripper for PE bottle tray

Abstract

The utility model discloses a kind of PE bottle tray with mechanical gripper, including the mounting bracket of being set in intermediate position, two sides of mounting bracket opposite left and right are respectively installed with a set of translational component;The translational component includes two parallel four-bar mechanisms, each parallel four-bar mechanism includes a forearm rod, a rear arm rod, upper link and lower link, the top end of forearm rod and rear arm rod is respectively hinged in the both ends of upper link, the intermediate position of upper link and lower link is respectively hinged in the both ends of lower link;Driving shaft is rotatably installed between two rear arm rods, one end of lower link and rear arm rod hinged with two lower links is fixedly connected with driving shaft, the lower end of two forearm rods is installed with push plate;One gripper is hinged in the four corners of mounting bracket respectively.The utility model can be able to grab tray, also can realize that bottle is stably translated to tray, prevent bottle from toppling.

Description

Technical Field

[0001] This utility model relates to a mechanical gripper for PE bottle filling trays, belonging to the technical field of mechanical grippers for bottle filling trays. Background Technology

[0002] In the filling production line, for ordinary beverage PE bottles, the beverage is first filled into the PE bottle, and the bottle mouth is sealed with aluminum foil. Then, a set of plastic bottles is picked up from the conveyor line by a tray loading machine, positioned by an electric cylinder, and then the clamp is released and loaded into the material tray.

[0003] Existing mechanical grippers have a tray-grabbing function, that is, they can grab trays carrying bottles and transfer or stack them. However, in actual beverage bottling production lines, after the beverages are bottled, they are conveyed on the conveyor line and arranged into a rectangular array. The bottles in the array need to be transferred as a whole or directly moved into the tray. Existing mechanical grippers cannot move the bottles arranged in a rectangular array horizontally without tipping them over.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] This invention addresses the shortcomings of the prior art by providing a mechanical gripper for PE bottle trays, which can grasp the tray and stably move the bottles onto the tray, preventing the bottles from tipping over.

[0006] To solve the above technical problems, the present invention adopts the following technical solution:

[0007] A mechanical gripper for PE bottle filling trays includes a mounting frame located in the middle, with a set of translational components mounted on each of the left and right opposite sides of the mounting frame;

[0008] The translational assembly includes two sets of parallel four-bar linkages. Each parallel four-bar linkage includes a forearm link, a rear link, an upper link, and a lower link. The two ends of the upper link are respectively hinged to the tops of the forearm link and the rear link, and the two ends of the lower link are respectively hinged to the middle positions of the upper link and the lower link.

[0009] A drive shaft is rotatably mounted between the two rear booms, and the ends of the two lower connecting rods that are hinged to the rear booms are fixedly connected to the drive shaft. Push plates are mounted on the lower ends of the two front booms.

[0010] A clamp is hinged at each of the four corners of the mounting bracket.

[0011] Furthermore, the lower end of the gripper is provided with a sleeve, and the inner side of the sleeve is provided with a slot.

[0012] Furthermore, the middle position of the gripper is hinged to the mounting frame, and each of the four corners of the mounting frame is provided with a gripping cylinder. The gripping cylinder is hinged to the mounting frame, and the piston rod of the gripping cylinder is hinged to the upper end of the gripper.

[0013] Furthermore, a drive arm is fixed on the drive shaft of the translation component, and a translation cylinder is respectively installed on the left and right opposite sides of the mounting frame. The translation cylinder is hinged to the mounting frame, and the piston rod of the translation cylinder is hinged to the upper end of the drive arm.

[0014] Furthermore, it also includes baffles disposed on the front and rear sides of the mounting frame. The baffles are installed at the lower end of the swing arm, which is hinged to the edge of the mounting frame. A material-stopping cylinder is also disposed on the front and rear sides of the mounting frame. The material-stopping cylinder is hinged to the mounting frame, and the piston rod of the material-stopping cylinder is hinged to the upper end of the swing arm.

[0015] Furthermore, an adjustment plate is provided parallel to the rear side of the push plate, and a screw is fixed to the back of the push plate. The push plate is fixed to the inner side of the adjustment plate by the screw. By adjusting the distance between the push plate and the adjustment plate, the position of the push plate can be finely adjusted.

[0016] Furthermore, an adjustment plate is provided parallel to the rear side of the baffle, and a screw is fixed to the back of the baffle. The baffle is fixed to the inner side of the adjustment plate by the screw. By adjusting the distance between the baffle and the adjustment plate, the position of the baffle can be finely adjusted.

[0017] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0018] On each of the two opposite sides of the mounting frame, there is a push plate. Each push plate is driven by a translation component to maintain translation. When the push plate moves to clamp the bottle, it can always be ensured that the push plate is perpendicular to the surface of the conveyor line, thus ensuring that the push plate can make parallel contact with the bottle body and preventing the bottle from tipping over when pushing it.

[0019] The translation component includes two parallel four-bar linkages. When the push plate is driven to move up and down through the parallel four-bar linkage, the translation cylinder can achieve a large range of up and down movement of the push plate without a large stroke.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a top view of the present invention;

[0023] Figure 3This is a schematic diagram of the structure of this utility model when gripping the material tray;

[0024] Figure 4 This is a schematic diagram of the gripper structure in this utility model;

[0025] Figure 5 This is a schematic diagram of the translation component in this utility model.

[0026] In the diagram, 1-mounting frame, 2-gripping cylinder, 3-clamp, 4-sleeve, 5-adjusting plate, 6-push plate, 7-translational component, 8-translational cylinder, 9-rear boom, 10-upper connecting rod, 11-lower connecting rod, 12-front boom, 13-drive arm, 14-stopping cylinder, 15-baffle, 16-swinging arm, 17-material tray, 18-clamping shaft. Detailed Implementation

[0027] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0028] like Figure 1-3 As shown, this utility model provides a mechanical gripper for PE bottle packaging trays, including a mounting frame 1 located in the middle, and a set of translational components 7 installed on the left and right opposite sides of the mounting frame 1.

[0029] like Figure 5 The translational assembly 7 includes two sets of parallel four-bar linkages. Each parallel four-bar linkage includes a front arm 12, a rear arm 9, an upper connecting rod 10, and a lower connecting rod 11. The two ends of the upper connecting rod 10 are respectively hinged to the top ends of the front arm 12 and the rear arm 9, and the two ends of the lower connecting rod 11 are respectively hinged to the middle positions of the upper connecting rod 10 and the lower connecting rod 11.

[0030] A drive shaft is rotatably mounted between the two rear booms 9. The ends of the two lower connecting rods 11 that are hinged to the rear booms 9 are fixedly connected to the drive shaft. Push plates 6 are mounted on the lower ends of the two front booms 12.

[0031] At each of the four corners of the mounting bracket 1, a clamp 3 is hinged, such as... Figure 4The gripper 3 is used to grasp the tray 17 containing bottles. In one application embodiment, the tray 17 is a rectangle surrounded by four vertical side plates. A support plate (not shown in the figure) is vertically movable inside the tray 17. When loading the tray 17, it is placed at the edge of the product conveyor line, and the support plate inside the tray 17 is pushed to the top, making the support plate flush with the conveyor line. After the bottles on the conveyor line are arranged into a rectangular array by the bottle-swinging structure, the mechanical gripper of this invention makes the inner pushing surface of the pusher 6 perpendicular to the conveying direction of the conveyor line, through two relative translational movements. Component 7 clamps the two sides of the rectangular array of bottles in parallel, and moves the bottles horizontally onto the tray 17. Then the tray moves down to the bottom of the tray 17, so that the bottles fall into the tray 17. This eliminates the need for manual or other devices to move the bottles into the tray 17 as a whole or individually. Moreover, when the push plate 6 is moved and clamped by the translation component 7, it can always be ensured that the push plate 6 is perpendicular to the surface of the conveyor line, so that the push plate 6 can make parallel contact with the bottle body and prevent the bottle from tipping over when pushing the bottle.

[0032] In addition, when the mechanical gripper approaches the bottle, it needs to fully lift the push plates 6 on both sides. The translation component 7 includes two parallel four-bar structures. When the push plates 6 are driven to move up and down through the parallel four-bar mechanism, the translation cylinder 8 can achieve a large range of up and down movement of the push plates 6 without a large stroke.

[0033] Each of the four corners of the material tray 17 has a vertically fixed clamping shaft 18. The lower end of the gripper 3 is provided with a sleeve 4, and the inner side of the sleeve 4 is provided with a groove. The groove locks the clamping shafts 18 at the four corners of the material tray 17, realizing the overall handling and transfer of the material tray 17.

[0034] The gripper 3 is hinged to the mounting frame 1 at its middle position. The mounting frame 1 is also provided with a gripping cylinder 2 at each of its four corners. The gripping cylinder 2 is hinged to the mounting frame 1, and the piston rod of the gripping cylinder 2 is hinged to the upper end of the gripper 3.

[0035] A drive arm 13 is fixed on the drive shaft of the translation component 7. A translation cylinder 8 is installed on each of the left and right opposite sides of the mounting frame 1. The translation cylinder 8 is hinged to the mounting frame 1, and the piston rod of the translation cylinder 8 is hinged to the upper end of the drive arm 13.

[0036] This utility model also includes baffles 15 disposed on the front and rear sides of the mounting frame 1. The baffles 15 are installed at the lower end of the swing arm 16. The swing arm 16 is hinged to the edge of the mounting frame 1. A material blocking cylinder 14 is also provided on the front and rear sides of the mounting frame 1. The material blocking cylinder 14 is hinged to the mounting frame 1, and the piston rod of the material blocking cylinder 14 is hinged to the upper end of the swing arm 16.

[0037] When the bottles are on the conveyor line, side baffles are provided on both sides of the conveyor line to limit the bottles. When the bottles are transferred by the mechanical gripper of this utility model, the bottle array is pushed by the push plates 6 on the left and right sides. During the pushing process, the baffles 15 on the front and rear sides of the bottle array block the front and rear sides of the bottle array to prevent the rectangular array of bottles from being disordered during the transfer process.

[0038] An adjusting plate 5 is provided parallel to the rear side of the push plate 6. A screw is fixed to the back of the push plate 6. The push plate 6 is fixed to the inner side of the adjusting plate 5 by the screw. By adjusting the distance between the push plate 6 and the adjusting plate 5, the position of the push plate 6 can be finely adjusted.

[0039] An adjusting plate 5 is provided parallel to the rear side of the baffle 15. A screw is fixed to the back of the baffle 15. The baffle 15 is fixed to the inner side of the adjusting plate 5 by the screw. By adjusting the distance between the baffle 15 and the adjusting plate 5, the position of the baffle 15 can be finely adjusted.

[0040] The specific working principle of this utility model:

[0041] On the left and right sides of the mounting frame 1, there is a push plate 6. Each push plate 6 is driven by a translation component 7 to maintain translation. The translation component 7 includes two parallel four-bar structures. When the push plate 6 is driven to move up and down by the parallel four-bar mechanism, the translation cylinder 8 can achieve a large range of up and down movement of the push plate 6 without a large stroke. When the push plate 6 is driven by the translation component 7 to move and clamp the bottle, it can always be ensured that the push plate 6 is perpendicular to the surface of the conveyor line, thereby ensuring that the push plate 6 can make parallel contact with the bottle body and preventing the bottle from tipping over when pushing the bottle.

[0042] After the bottles are transferred into the tray 17, the four corners of the tray 17 are clamped by the grippers 3 hinged around the mounting frame 1 to move and transfer the tray 17. The mounting frame 1 is also provided with baffles 15 on the front and rear sides. During the pushing process, the baffles 15 on the front and rear sides block the front and rear sides of the bottle array to prevent the rectangular array of bottles from being disordered during the transfer process.

[0043] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A mechanical gripper for PE bottle packaging trays, characterized in that: Includes a mounting frame (1) located in the middle, and a set of translational components (7) are installed on the left and right opposite sides of the mounting frame (1); The translational assembly (7) includes two sets of parallel four-bar linkages. Each parallel four-bar linkage includes a front arm (12), a rear arm (9), an upper link (10), and a lower link (11). The two ends of the upper link (10) are respectively hinged to the top ends of the front arm (12) and the rear arm (9), and the two ends of the lower link (11) are respectively hinged to the middle positions of the upper link (10) and the lower link (11). A drive shaft is rotatably mounted between the two rear arm rods (9), and the ends of the two lower connecting rods (11) that are hinged to the rear arm rods (9) are fixedly connected to the drive shaft. Push plates (6) are mounted on the lower ends of the two front arm rods (12). A clamp (3) is hinged at each of the four corners of the mounting bracket (1).

2. The mechanical gripper for PE bottle filling trays as described in claim 1, characterized in that: The lower end of the gripper (3) is provided with a sleeve (4), and the inner side of the sleeve (4) is provided with a slot.

3. The mechanical gripper for PE bottle filling trays as described in claim 2, characterized in that: The middle position of the gripper (3) is hinged to the mounting frame (1). The four corners of the mounting frame (1) are also provided with a gripping cylinder (2). The gripping cylinder (2) is hinged to the mounting frame (1), and the piston rod of the gripping cylinder (2) is hinged to the upper end of the gripper (3).

4. The mechanical gripper for PE bottle filling trays as described in claim 1, characterized in that: A drive arm (13) is fixed on the drive shaft of the translation component (7). A translation cylinder (8) is installed on each of the left and right opposite sides of the mounting frame (1). The translation cylinder (8) is hinged to the mounting frame (1), and the piston rod of the translation cylinder (8) is hinged to the upper end of the drive arm (13).

5. The mechanical gripper for PE bottle filling trays as described in claim 1, characterized in that: It also includes baffles (15) on the front and rear sides of the mounting frame (1), the baffles (15) are installed at the lower end of the swing arm (16), the swing arm (16) is hinged to the edge of the mounting frame (1), and a material blocking cylinder (14) is provided on the front and rear sides of the mounting frame (1), the material blocking cylinder (14) is hinged to the mounting frame (1), and the piston rod of the material blocking cylinder (14) is hinged to the upper end of the swing arm (16).

6. The mechanical gripper for PE bottle filling trays as described in claim 1, characterized in that: An adjustment plate (5) is provided parallel to the rear side of the push plate (6). A screw is fixed to the back of the push plate (6). The push plate (6) is fixed to the inner side of the adjustment plate (5) by the screw. The distance between the push plate (6) and the adjustment plate (5) can be adjusted so that the position of the push plate (6) can be finely adjusted.

7. A mechanical gripper for PE bottle filling trays as described in claim 5, characterized in that: An adjusting plate (5) is provided parallel to the rear side of the baffle (15). A screw is fixed to the back of the baffle (15). The baffle (15) is fixed to the inner side of the adjusting plate (5) by the screw. The position of the baffle (15) can be finely adjusted by adjusting the distance between the baffle (15) and the adjusting plate (5).

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