A cardboard tube cutting device

Abstract

The present invention discloses a cardboard tube cutting device, which includes a bench (1). A rotary cylinder (2) is connected to the bench. The output end of the rotary cylinder is fixedly connected to a first mounting plate (3). A first cylinder (4) is connected to the first mounting plate. The first cylinder is vertically arranged and the cylinder telescopic end is connected to a second mounting plate (5). Four second cylinders (6) are connected to the second mounting plate. Each second cylinder is respectively arranged at four positions perpendicular to each other in the horizontal plane of the second support plate. Each second cylinder is horizontally arranged and the cylinder telescopic end faces outward, and the telescopic end is connected to a support plate (7). A column (8) is fixedly connected to the bench. A swing arm (10) with a cutter at its end is rotatably connected to the column. A cylinder joint (11) is connected to the swing arm. The cylinder joint is connected to the rod of a third cylinder (13) through a telescopic device (12). By the action of the telescopic device, during the process of cutting the cardboard tube, the cutter is brought into contact with and pressed against the cardboard tube surface to ensure sufficient cutting.

Description

Technical Field

[0001] The present invention relates to the technical field of carton production equipment, and particularly relates to a cardboard tube cutting device for a carton production line. Background Art

[0002] Manufacturing is the main body of the national economy, the foundation of a country, the instrument for rejuvenating the country, and the cornerstone for strengthening the country. The era of automation and intelligence has arrived, which has facilitated people's lives and work in many aspects and at the same time replaced manual labor.

[0003] During the production process of cartons, it is necessary to cut the height of rectangular cardboard tubes according to customer requirements. At present, the cardboard tubes are still mainly cut manually, which not only results in low cutting efficiency, but also easily makes the cut edges uneven, and in severe cases, causes the cardboard tubes to be scrapped. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a cardboard tube cutting device.

[0005] The present invention adopts the following technical solutions:

[0006] A cardboard tube cutting device includes a bench. It is characterized in that: a rotary cylinder is connected to the bench, the output end of the rotary cylinder is fixedly connected to a first mounting plate, a first cylinder with a guiding function is connected to the first mounting plate, the first cylinder is vertically arranged and the cylinder telescopic end is connected to a second mounting plate, four second cylinders with a guiding function are connected to the second mounting plate, each second cylinder is respectively arranged at four perpendicular positions in the horizontal plane of the second mounting plate, each second cylinder is horizontally arranged and the cylinder telescopic end faces outward, and the telescopic end of the second cylinder is connected to a support plate;

[0007] A column is fixedly connected to the bench, a swing arm with a tool at its end is rotatably connected to the column, a cylinder joint is connected to the swing arm, the cylinder joint is connected to the rod of a third cylinder through an elastic telescopic device, and the third cylinder is connected to the bench through a mounting rod; through the action of the telescopic device, during the process of cutting the cardboard tube, the tool is always in contact with and pressed against the cardboard tube plate surface to ensure sufficient cutting.

[0008] Further, the telescopic device includes a sleeve rod provided with a blind hole, a pair of axially arranged guide grooves are provided on the circumferential surface of the sleeve rod, a support rod is slidably fitted in the sleeve rod, guide bodies corresponding to the guide grooves are provided on the circumferential surface of the support rod, the guide bodies slide up and down in the guide grooves, and a spring is provided between the bottom end of the blind hole of the support rod and the sleeve rod.

[0009] Further, a groove is provided at the end of the swing arm, a fixed shaft is connected in the groove, and a tool is rotatably connected to the fixed shaft; the tool is a disc-shaped cutting tool.

[0010] Furthermore, the number of the first cylinders is four, which are distributed directly below the corresponding second cylinders on each side.

[0011] Furthermore, the four first cylinders share one control solenoid valve, and the four second cylinders share another control solenoid valve.

[0012] Furthermore, a photoelectric sensor for detecting the incoming material is provided on the bench.

[0013] Furthermore, cylinder speed control valves and magnetic sensors are provided on the rotary cylinder and the first and second cylinders.

[0014] Furthermore, the support plate is a plastic part.

[0015] The beneficial effects of the present invention are as follows:

[0016] In this solution, the cardboard tube is rotated 360°, and the cardboard tube is cut in the height direction according to the established dimensional requirements, and the processing is completed at one time, reducing the production time and increasing the production efficiency; this solution replaces manual cutting, reduces the interference of manual operation, improves the cutting quality, and at the same time avoids the harm to the human body and the environment caused by the dust pollution generated by cutting. Description of the Drawings

[0017] Figure 1 is the structural schematic diagram of the present invention;

[0018] Figure 2 is the front view and left view structural schematic diagram of the telescopic device;

[0019] Figure 3 is Figure 1 the enlarged structural schematic diagram of part Ⅰ in

[0020] Figure 4 is Figure 1 the enlarged structural schematic diagram of part Ⅱ in

[0021] Figure 5 is the schematic diagram of the extreme position of the swing arm Figure 1 ;

[0022] Figure 6 is the schematic diagram of the extreme position of the swing arm Figure 2 ;

[0023] For clearly showing the structural features of the present invention, Figure 3 it is the structural view of the observation direction of rotation at part Ⅰ.

[0024] Description of the reference numerals: 1, bench; 2, rotary cylinder; 3, first mounting plate; 4, first cylinder; 5, second mounting plate; 6, second cylinder; 7, support plate; 8, column; 9, cutting tool; 10, swing arm; 11, cylinder joint; 12, telescopic device; 121, sleeve rod; 122, guide groove; 123, support rod; 124, guide body; 125, spring; 126, screw rod; 127, internal thread hole; 13, third cylinder; 14, mounting rod; 15, groove; 16, fixed shaft; 17, photoelectric sensor; 101, cylinder speed control valve; 102, magnetic sensor. Detailed implementation manners

[0025] To make the present invention more clearly understood, the following further describes a cardboard tube cutting device of the present invention with reference to the drawings. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] As Figure 1 shown, a cardboard tube cutting device includes a bench 1, which is composed of legs and a bench board on the legs. The bench board is the basis for supporting and installing components. A rotary cylinder 2 is connected to the center of the bench board of the bench 1, and the rotary output end of the rotary cylinder 2 is fixedly connected to a first mounting plate 3. The first mounting plate 3 is a steel plate that is centrosymmetric in a cross shape. On the upper surface of the first mounting plate 3 at four mutually perpendicular positions (i.e., the end positions of each cross-shaped plate), first cylinders 4 are respectively connected. The four first cylinders 4 are symmetrically distributed with the center of the first mounting plate 3 as the center, and their telescopic ends are vertically upward. The telescopic ends of the first cylinders 4 are jointly connected to a second mounting plate 5, and the outer shape of the second mounting plate 5 is the same as that of the first mounting plate 3. Four second cylinders 6 are connected to the upper surface of the second mounting plate 5. Each second cylinder 6 is symmetrically arranged with the center of the second mounting plate 5 as the center and is directly above the corresponding first cylinder 4 on the corresponding side. Each second cylinder 6 is horizontally arranged and the cylinder telescopic end faces outward. A support plate 7 is screwed to the telescopic end of each second cylinder 6. Among them, the first and second cylinders are both cylinders with a guiding function, such as a slide rail cylinder, a guiding rod cylinder, etc.; the support plate 7 is a replaceable plastic part.

[0027] As Figure 1 、 Figure 3 shown, a column 8 is also fixedly connected to the bench 1. A swing arm 10 is rotatably connected to the column 8. A cutting tool 9 is connected to the front end of the swing arm 10. A cylinder joint 11 is hinged at the middle position of the swing arm 10. The cylinder joint 11 is connected to the cylinder rod of a third cylinder 13 through a telescopic device 12 with a telescopic function. The tail end of the third cylinder 13 is connected to the bench 1 through a hinged mounting rod 14. The above-mentioned rotatable connections can use rolling bearings or sliding sleeves. For example, using a deep groove ball bearing can reduce the rotational friction, and using a phosphor bronze bushing or a graphite + brass sleeve can also achieve a self-lubricating function.

[0028] As Figure 2 shown, the telescopic device 12 includes a sleeve rod 121 provided with a blind hole. The upper end of the sleeve rod 121 is connected to a screw rod 126, and the screw rod 126 is used to connect the cylinder joint 11. A pair of axially arranged guide grooves 122 are provided on the circumferential surface of the outer side of the sleeve rod 121. The guide grooves 122 are symmetrically arranged and are in the shape of waist-shaped grooves. A support rod 123 is slidably fitted in the sleeve rod 121. Guide bodies 124 corresponding to the guide grooves 122 are provided on the circumferential surface of the support rod 123. The guide bodies 124 are round rods, and the guide bodies 124 are inserted into the guide grooves 122 to enable the support rod 123 to form an up-and-down guiding movement. A spring 125 is provided between the upper end of the support rod 123 and the bottom end of the blind hole of the sleeve rod 121. After the spring 125 is installed, it is in a compressed state; an internal thread hole 127 is provided at the bottom end of the support rod 123 for connecting the cylinder rod of the third cylinder 13. Through the action of the spring 125, the telescopic device 12 changes the distance between the sleeve rod 121 and the support rod 123 according to the change of external force.

[0029] As Figure 1 、 Figure 4 shown, a groove 15 is provided at the front end of the swing arm 10. The groove 15 is located in the middle of the upper and lower plate surfaces of the swing arm 10. A fixed shaft 16 is provided in the groove 15. Both ends of the fixed shaft 16 are fixedly connected to the swing arm 10. A cutter 9 is rotatably connected to the fixed shaft 16. The cutter 9 is a disc-shaped cutting tool, and its edge is a sharp cutting edge.

[0030] As Figure 3 shown, cylinder speed regulators 101 and magnetic sensors 102 are provided on the rotary cylinder 2 and the first and second cylinders. The cylinder speed regulator 101 is used to adjust the rotation speed of the rotary cylinder 2 and the telescopic speeds of the first and second cylinders; the magnetic sensor 102 is used to detect the working state of the cylinder. The four first cylinders 4 share a control solenoid valve (not labeled in the figure) to enable the four first cylinders 4 to run synchronously; the four second cylinders 6 share another control solenoid valve to enable the four second cylinders 6 to run synchronously. In addition, the rotary cylinder 2 is also integrated with a fine adjustment function for the rotation angle. The rotary cylinder with a fine adjustment function for the rotation angle can be directly purchased.

[0031] In order to facilitate the application of this device in the carton production line, a photoelectric sensor 17 for detecting the incoming material is provided on the platform 1, and the photoelectric sensor 17 is located on the loading side of the platform board of the platform 1.

[0032] Working process of this embodiment: First, the incoming cardboard tube is sleeved on four support plates 7, and the bottom end of the cardboard tube is supported on the tabletop of the bench 1. Then, the four second cylinders 6 extend synchronously, and the four sides of the cardboard tube are simultaneously pressed tightly through the support plates 7. Subsequently, the four first cylinders 4 extend synchronously to lift the cardboard tube so that its bottom end is separated from the tabletop of the bench 1. Then, the third cylinder 13 moves to press the cutter 9 on the cardboard tube and within the area supported by the support plates 7. Finally, the rotary cylinder 2 rotates 360° to realize the cutting function of the cardboard tube. After cutting is completed, each cylinder returns to its original position. Subsequently, according to the process requirements of the carton production line, the cut cardboard tube can be taken out by a manual or automatic grasping device.

[0033] In this device, when the rotary cylinder 2 rotates for cutting, the cutter 9 needs to cut the four sides and four corners of the cardboard tube. Since the distances between the board and the corners of the cardboard tube from the rotation center position are different, in order to ensure that the cardboard tube can be smoothly cut, the swing arm 10 needs to have a certain swing amount, and it is also necessary to always ensure that the cutter 9 is in close contact with the cardboard tube. Figure 5 、 Figure 6 The limit positions of the cutter 9 are respectively shown, and the above limit positions are realized through the telescopic device 12. Figure 5 When shown as such, the compression amount of the telescopic device 12 is larger, and the force acting on the cardboard tube in the reverse direction is also larger. Figure 6 When shown as such, the compression amount of the telescopic device 12 is smaller, and the force acting on the cardboard tube in the reverse direction is also smaller; the reverse acting forces of the telescopic device 12 can all ensure sufficient cutting. During this process, the extension length of the piston rod of the third cylinder 13 remains unchanged, and the swing angle of the third cylinder 13 and the telescopic amount of the telescopic device 12 change with the positions of the sides and corners contacted when the cardboard tube rotates.

[0034] In addition, in this device, the four second cylinders extend synchronously to drive the support plates to press tightly against the cardboard tube, so that the inner surfaces of the cardboard tube are all stressed and in force balance, which will not cause the cardboard tube to deform and result in waste products; the first cylinders are set to extend simultaneously, which can not only realize the separation of the cardboard tube from the bench, facilitate the subsequent rotation of the cardboard tube without friction hindrance, but also keep it stable when the cardboard tube moves upward without deviation, jitter and other phenomena; the telescopic device is set to ensure that during the cutting process, the cutter always presses on the surface of the cardboard tube to ensure thorough cutting of the cardboard tube; in addition, the support plates 7 made of plastic material can reduce tool wear and collision damage.

[0035] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention; any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above, or modify it into equivalent embodiments with equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A cardboard tube cutting device, comprising a bench (1), characterized in that: A rotary cylinder (2) is connected to the gantry (1). The output end of the rotary cylinder (2) is fixedly connected to a first mounting plate (3). A first cylinder (4) with a guiding function is connected to the first mounting plate (3). The first cylinder (4) is vertically arranged and the cylinder telescopic end is connected to a second mounting plate (5). Four second cylinders (6) with a guiding function are connected to the second mounting plate (5). Each second cylinder (6) is respectively arranged at four positions perpendicular to each other in the horizontal plane of the second mounting plate (5). Each second cylinder (6) is horizontally arranged and the cylinder telescopic ends all face outward. The telescopic ends of the second cylinders (6) are connected to a support plate (7). A column (8) is fixedly connected to the gantry (1). An oscillating arm (10) with a cutter (9) at its end is rotatably connected to the column (8). A cylinder joint (11) is connected to the oscillating arm (10). The cylinder joint (11) is connected to the rod of a third cylinder (13) through an elastic telescopic device (12). The third cylinder (13) is connected to the gantry (1) through a mounting rod (14). Through the action of the telescopic device (12), during the process of cutting the cardboard tube, the cutter (9) is always in contact with and presses the cardboard tube surface to ensure sufficient cutting. The telescopic device (12) includes a sleeve rod (121) provided with a blind hole. A pair of axially arranged guiding grooves (122) are provided on the peripheral surface of the sleeve rod (121). A support rod (123) is slidably fitted in the sleeve rod (121). Guiding bodies (124) corresponding to the guiding grooves (122) are provided on the circumferential surface of the support rod (123). The guiding bodies (124) slide up and down in the guiding grooves (122). A spring (125) is provided between the bottom end of the blind hole of the support rod (123) and the sleeve rod (121). Cylinder speed control valves (101) and magnetic sensors (102) are provided on the rotary cylinder (2) and the first and second cylinders.

2. The cardboard tube cutting device according to claim 1, wherein: A groove (15) is provided at the end of the oscillating arm (10). A fixed shaft (16) is connected in the groove (15). The cutter (9) is rotatably connected to the fixed shaft (16). The cutter (9) is a disc-shaped cutting tool.

3. A cardboard tube cutting device according to claim 1 or 2, characterized in that: The number of the first cylinders (4) is four, and they are distributed directly below the corresponding second cylinders (6).

4. The cardboard tube cutting device according to claim 3, characterized in that: The four first cylinders (4) share a control solenoid valve, and the four second cylinders (6) share another control solenoid valve.

5. The cardboard tube cutting device according to claim 4, wherein: An optoelectronic sensor (17) for incoming material detection is provided on the gantry (1).

6. The cardboard tube cutting device according to claim 1, wherein: The support plate (7) is a plastic part.

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