Belt shearing device

Abstract

A belt shearing device is characterized by comprising a machine frame which is provided with a base, a left stand column, a right stand column and a lifting mechanism arranged on the left stand column and the right stand column; the positioning main frame is fixedly mounted on the lifting mechanism and can be lifted up and down; the belt shearing mechanism is arranged on the positioning main frame, can ascend and descend along with the positioning main frame and transversely moves on the positioning main frame; and the tape winding mechanism is used for conveying the cut packaging tape. The simple machine frame and the belt shearing mechanism thereof are adopted, an expensive robot manipulator is not needed, the longitudinally and transversely arranged packaging belts can be cut off by pressing the blade downwards at a time, rapidness and convenience are achieved, production efficiency is improved, cost is reduced, and the overall structure is reasonable and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of object and material packaging, and particularly relates to a tape cutting device for unwrapping a film stack. Background Art

[0002] In traditional wine brewing production, especially in production operations in fields such as wine packaging, an AGV cart is required to send stacked packaging boxes onto a robotic automatic case loading machine, and then they are further transferred onto a transport truck. Since the multiple stacked packaging boxes being sent are wrapped with a coating film and tied with binding tapes, forming a stack of liquor product boxes in a group of several, when the stack of boxes is sent onto the robotic automatic case loading machine, film unwrapping and tape cutting are required. The prior art still uses manual operation for film unwrapping and tape untying, which not only has a high labor intensity and low work efficiency, but also makes it difficult to achieve fully automated production packaging operations. For this reason, some technicians have developed a film unwrapping and tape cutting device to achieve fully automated operations for packaging boxes in fields such as wine production.

[0003] For example, a film unwrapping and tape cutting device and its usage method with the patent publication number CN117508828A disclose a film unwrapping and tape cutting device and its usage method, which includes: a frame; a film unwrapping mechanism, including: a film suction machine and a film unwrapping machine; the film suction machine is provided with suction cups for sucking the film on the outer surface of the stack of boxes, and the film unwrapping machine is provided with a heat blower and a film taking gripper; a tape cutting mechanism, including: a stack pressing component, a tape winding machine for unwinding the packaging tape, and a tape cutting machine for cutting the packaging tape; the stack pressing component is arranged on the top of the frame and faces the top cover plate of the stack of boxes; in the working state, the stack pressing component is driven to press the top cover plate of the stack of boxes to prevent the packaging tape from pulling the cover plate off when winding the tape. Through the above film unwrapping and tape cutting device, the problems of high labor intensity, low work efficiency, and difficulty in achieving fully automated production packaging operations when manually performing film unwrapping and tape untying can be effectively solved. Its drawback is that the tape cutting device still uses a robotic manipulator, and is arranged in pairs on both sides, resulting in a high equipment cost. In addition, for the cutting of packaging tapes distributed in a cross shape, either an additional robotic manipulator is added, or the work tray on the stack is rotated 90 degrees to facilitate the second tape cutting, resulting in a complex structure and reduced production efficiency. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a tape cutting device with a reasonable structure, low cost, and fast and convenient tape cutting in view of the above technical status.

[0005] The technical solution adopted by the utility model to solve the above technical problem is: a tape cutting device, which includes:

[0006] A frame, having a base, left and right columns, and a lifting mechanism arranged on the left and right columns;

[0007] A positioning main frame is fixedly installed on the lifting mechanism and can move up and down;

[0008] A tape cutting mechanism is arranged on the positioning main frame and can move up and down with the positioning main frame and move horizontally on the positioning main frame;

[0009] A tape winding mechanism conveys the cut packaging tape.

[0010] Furthermore, the positioning main frame includes: a movable frame that can move horizontally, and the tape cutting mechanism is fixed on the sliding frame;

[0011] A third driving mechanism is connected to the sliding frame to make it move horizontally.

[0012] Furthermore, the tape cutting mechanism includes:

[0013] A stack board pressing member having a pressing plate and pressing feet distributed on the pressing plate for pressing the stack board;

[0014] A cylinder mounting seat with multiple first cylinders for pushing the blade assembly to act;

[0015] Multiple blade assemblies, and each blade assembly includes:

[0016] A blade seat with a cutting edge for the blade to move up and down, and is connected to the cylinder mounting seat through the cylinder body of the first cylinder;

[0017] A blade, connected to the movable rod of the first cylinder and capable of moving up and down;

[0018] A cam having a pressing surface for pressing the packaging tape and connected to the rotating mechanism.

[0019] Preferably, there are four groups of the blade assemblies, and the distribution positions are matched with the intersections of the packaging tapes presenting a "well" shape.

[0020] Furthermore, the rotating mechanism includes:

[0021] A second cylinder, the upper end of which is installed on the cylinder mounting seat, and the movable rod of the second cylinder can move up and down;

[0022] A connecting fork member, the upper end of which is connected to the movable rod of the second cylinder;

[0023] A cam connecting rod, the upper end of which is pivotally connected to the lower end of the connecting fork member, and the lower end of which is fixedly connected to the cam to drive the cam to rotate.

[0024] Still further, a protection piece is arranged on the blade seat.

[0025] Preferably, two planes with different eccentric distances are distributed on the circumferential surface of the cam, which respectively form a pressing surface for pressing the packaging tape and a non-pressing guiding surface for releasing the packaging tape.

[0026] Furthermore, the pressing plate includes:

[0027] A plurality of optical rods, longitudinally distributed on the pressing plate and passing through corresponding through holes on the positioning main frame;

[0028] A spring, sleeved on the optical rod and limited and fixed by a limiting member to keep the pressing plate in a downward pressing trend.

[0029] Furthermore, the cylinder mounting seat includes:

[0030] A plurality of optical axes, distributed on the upper surface of the cylinder mounting seat and passing through through holes of the movable frame;

[0031] A plurality of guide sleeves, fixed on the movable frame to position and guide the optical axes;

[0032] A third cylinder, fixed on the movable frame, and the movable rod of the third cylinder is connected to the cylinder mounting seat.

[0033] Finally, the tape winding mechanism includes:

[0034] A frame;

[0035] A driving roller, fixed on the frame and driven by a first driving mechanism;

[0036] A driven roller, arranged on a second driving mechanism, fixed on the frame and capable of moving relative to the driving roller.

[0037] Compared with the prior art, the advantages of the present utility model are as follows: by adopting a simple frame and its tape cutting mechanism, there is no need for an expensive robot manipulator, and moreover, the packaging tape arranged vertically and horizontally can be cut by pressing down the blade once, which is fast and convenient, improves production efficiency, reduces costs, and the overall structure is reasonable and practical. Description of the Drawings

[0038] Figure 1 It is the main structural view of the embodiment of the present utility model;

[0039] Figure 2 It is the side structural view of the embodiment of the present utility model;

[0040] Figure 3 It is the top structural view of the embodiment of the present utility model;

[0041] Figure 4 It is the main structural view of the frame;

[0042] Figure 5 It is the side structural view of the frame;

[0043] Figure 6 It is the main structural view of the positioning main frame, the movable frame and the tape cutting mechanism;

[0044] Figure 7 Side view of the structure for positioning the main frame, movable frame and tape cutting mechanism;

[0045] Figure 8 Top view of the structure for positioning the main frame, movable frame and tape cutting mechanism;

[0046] Figure 9 Front view of the structure of the blade assembly;

[0047] Figure 10 Side view of the structure of the blade assembly;

[0048] Figure 11 Stereogram of the structure of the tape winding assembly;

[0049] Figure 12 Stereogram of the mold removing and tape cutting device. Detailed implementation manners

[0050] The present utility model will be further described in detail below in conjunction with the embodiments with reference to the drawings.

[0051] As Figures 1 to 12 shown, a tape cutting device A includes main components such as a frame 1, a positioning main frame 2, a tape cutting mechanism 3 and a tape winding mechanism 5. Among them, the frame 1 has a base 11, a left column 12 and a right column 13 are distributed on both sides of the base 11, and a lifting mechanism 14 is arranged on the left column and the right column. The main transmission sub-component 15 in the lifting mechanism straddles the left column 12 and the right column 13 to form a structure similar to a gantry. On the inner sides of the left column 12 and the right column 13, a left lifting component 16 and a right lifting component 17 that can slide up and down are arranged through a rail and pulley matching mechanism. After the left lifting component 16 and the right lifting component 17 pass through the transmission wheels 19 of the main transmission sub-component 15 through their respective cables 18, they are connected to the counterweight component 110 on the back of the column. At the same time, there is a positioning main frame 2, which adopts a generally cubic frame structure and is installed on the lifting component, so that it can also move up and down correspondingly with the up and down movement of the lifting mechanism 14. There is also a tape cutting mechanism 3, which is arranged on the positioning main frame 2 and can move up and down with the positioning main frame 2 to facilitate pressing against the stack. And there is a movable frame 4 on the positioning main frame 2. The tape cutting mechanism 3 is fixedly connected to the movable frame 4 and can move horizontally to clamp the cut packaging tape to a tape winding mechanism 5, and the tape winding mechanism 5 conveys the cut packaging tape.

[0052] Specifically, in the positioning main frame 2, there is a movable frame 4 that can move horizontally. The movable frame 4 is also composed of connected components, and there is a third driving mechanism 41 to make it move. In this embodiment, the driving mechanism 41 is composed of a driving shaft 411, a driven shaft 412, a sprocket and a chain 413. Of course, the driving mechanism 41 can also adopt gear transmission, and the specific form is not limited, so that the tape cutting mechanism 3 is fixed on the movable frame 4, connected to the movable frame 4 and can move horizontally.

[0053] The tape cutting mechanism 3 has a stacker pressing member 31. A generally rectangular frame is used as the pressing plate 311. Pressing feet 312 for pressing the stacker are fixed at the four corner parts of the pressing plate 311. Generally, four optical rods 313 are distributed on the upper surface of the pressing plate 311, longitudinally distributed on the upper surface of the pressing plate 311. Correspondingly, through holes are provided on the lower member of the positioning main frame 2, enabling the optical rods 313 to pass through the corresponding through holes on the positioning main frame 2. A spring 314 is sleeved on the optical rods 313 and then limited and fixed by a limiting member, so that the pressing plate 311 maintains a downward pressing trend, giving the pressing plate 311 a certain elastic floating property. There is also a cylinder mounting seat 32. Two optical axes 321 are provided on its upper surface. Correspondingly, through holes are opened on the upper member of the movable frame 4, enabling the optical axes 321 to pass through the through holes of the movable frame. Two guide sleeves 322 are fixed on the through holes of the movable frame 4 to position and guide the optical axes 321, improving stability. There is also a third cylinder 323, which is also fixed on the movable frame 4. The movable rod of the third cylinder 323 is connected to the cylinder mounting seat 32, enabling the cylinder mounting seat 32 to move up and down. Generally, four first cylinders 337 are distributed on the cylinder mounting seat 32 to drive the blade assembly to act. Each group of blade assemblies 33 includes a blade seat 331, which is generally L-shaped. The side part is connected to the cylinder mounting seat 32 through the cylinder body of the first cylinder 337. A blade opening 332 for the blade to move up and down is opened at the bottom, and there is a blade 333, which is connected to the movable rod of the first cylinder 337 and can move up and down, cooperating with the blade opening on the blade seat 331 to cut the packaging tape. There is another cam 334 on the front side of the blade opening 332, which has a pressing surface for pressing the packaging tape and is connected to the rotating mechanism 34. Among them, the rotating mechanism 34 has a second cylinder 341, the upper end of which is installed on the cylinder mounting seat 32. The movable rod of the second cylinder 341 can move up and down and is connected to the upper end of a connecting fork member 342. The lower end of the connecting fork member 342 is pivotally connected to the upper end of a cam link 343. The upper end is pivotally connected to the lower end of the connecting fork member 342. The lower end of the cam link 343 is installed with a cam 334 to drive the cam 334 to rotate. Thus, two planes 335 with different eccentric distances distributed on the circumferential surface of the cam 334 are respectively used to form a pressing surface for pressing the packaging tape and a non-pressing guiding surface for loosening the packaging tape. In this way, there are four groups of blade assemblies 33, and the distribution positions are matched with the intersections of the packaging tapes presenting a "well" shape distribution, facilitating cutting all the packaging tapes at once by a single downward pressure and pressing the packaging tapes. A protection piece 336 is provided at the rear of the blade seat 331.

[0054] Finally, there is also a tape winding mechanism 5, which has a frame 51. A driving roller 52 is fixed on the frame and is driven by a first driving mechanism 54. A driven roller 53 is arranged on a second driving mechanism 55 and is also fixed on the frame 51 and can move relative to the driving roller 52.

[0055] Its working principle is as follows. When a first position sensor for detecting the stacking position is provided on the rack, the first position sensor is linked with the tape cutting device to trigger the operation of the tape cutting device.

[0056] When the pallet workpiece enters the tape unwinding station of the tape cutting device, it is conveyed forward and located by two groups of photoelectric sensors for pallet detection; the positioning main frame 2 of the tape cutting device descends with the lifting mechanism, and the lifting and pallet detecting photoelectric sensor on the tape cutting device is used to detect and find the position, so that the pallet pressing member 31 presses the outer edge of the top plate. Then the scissors mechanism 3 descends, and the packaging tape distributed in a cross shape is cut off by a single stamping of the blade assembly 33, and the cut packaging tape is pressed by the cam 334. The scissors mechanism 3 moves outward through the movable frame 4, so that the cut packaging tape engages with the clamping roller of the tape winding mechanism 4, and the tape is sent into the collection basket of the granulator under the friction rotation.

[0057] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A belt cutting device, characterized in that Included are: A frame having a base, left and right columns and a lifting mechanism arranged on the left and right columns; A positioning main frame, fixedly mounted on the lifting mechanism, capable of lifting up and down; A belt cutting mechanism is arranged on the positioning main frame, and can be raised and lowered along with the positioning main frame and can move horizontally on the positioning main frame; A tape reel mechanism is used to convey the cut packaging tape.

2. The ribbon cutting device according to claim 1, characterized in that The positioning main frame comprises: A movable frame capable of moving laterally, on which the belt cutting mechanism is fixed; A third driving mechanism is connected to the movable frame to enable it to move horizontally.

3. The ribbon cutting device according to claim 2, characterized in that The belt cutting mechanism comprises: A stack plate pressing member, comprising a pressing plate and pressing feet distributed on the pressing plate for pressing the stack plates; A cylinder mounting seat, on which a plurality of first cylinders for driving the blade assembly are distributed; A plurality of blade assemblies, the blade assemblies comprising: A blade seat, the blade seat is provided with a cutting edge for the blade to move up and down, and is connected to the cylinder mounting seat through the cylinder body of the first cylinder; A blade is connected to the movable rod of the first cylinder and can move up and down; A cam has a pressing surface for pressing against the packaging belt and is connected with the rotating mechanism.

4. The ribbon cutting device according to claim 3, characterized in that There are four groups of blade assemblies, and the distribution positions are matched with the intersections of the packaging belts in a "well" distribution.

5. The ribbon cutting device according to claim 4, characterized in that The rotating mechanism comprises: A second cylinder, the upper end of which is mounted on the cylinder mounting seat, and the movable rod of the second cylinder can move up and down; a connecting fork, the upper end of which is connected to the movable rod of the second cylinder; A cam connecting rod has an upper end axially connected to the lower end of the connecting fork and a lower end fixedly connected to the cam to drive the cam to rotate.

6. The ribbon cutting device according to claim 5, characterized in that A protection sheet is arranged on the blade seat.

7. The ribbon cutting device according to claim 6, characterized in that The circumferential surface of the cam is provided with two planes with different eccentricities, which respectively constitute a pressing surface for pressing against the packaging belt and a non-pressing guiding surface for releasing the packaging belt.

8. The ribbon cutting device according to claim 3, characterized in that The pressing plate comprises: A plurality of polished rods are longitudinally distributed on the pressing plate and pass through corresponding through holes on the positioning main frame; The spring is sleeved on the light rod and fixed by a limiter to keep the pressure plate in a downward pressure trend.

9. The ribbon cutting device according to claim 3, characterized in that The cylinder mounting seat comprises: A plurality of optical axes are distributed on the upper surface of the cylinder mounting seat and pass through the through holes of the movable frame; Multiple guide sleeves are fixed on the movable frame to position and guide the optical axis; A third cylinder is fixed on the movable frame, and a movable rod of the third cylinder is connected to the cylinder mounting seat.

10. The ribbon cutting device according to claim 1, characterized in that The tape reel mechanism comprises: One rack; A driving roller, fixed on the frame and driven by the first driving mechanism; A driven roller is arranged on the second driving mechanism, fixed on the frame, and can move relative to the driving roller.

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