A paper tube surface grinding device

Abstract

The present invention discloses a paper tube surface grinding device, which is characterized by comprising a frame, a conveyor belt arranged on the frame, a positioning mechanism and a grinding mechanism, wherein the positioning mechanism comprises a first motor, a positioning column, a push cylinder and a push plate, wherein the first motor is installed at the rear side of the conveyor belt, the push cylinder is installed at the front side of the conveyor belt, the push cylinder is arranged opposite to the first motor, the positioning column is installed on the output shaft of the first motor, the front end of the positioning column is arranged at the rear side just above the conveyor belt, the push plate is installed on the output shaft of the push cylinder, and the push plate is arranged opposite to the positioning column; the grinding mechanism comprises a second motor, a grinding wheel, a lifting cylinder and a connecting mechanism, wherein the lifting cylinder output shaft is extended and retracted, and the connecting mechanism drives the mounting plate to rotate, so that the grinding wheel is close to or away from the positioning column. The present invention improves the quality and qualified rate of products.

Description

Technical Field

[0001] The invention relates to the field of paper tube production and processing, and in particular to a paper tube surface polishing device. Background Art

[0002] In the prior art, when making paper tubes, base paper and adhesive are generally wound together. After the paper tubes are made, they need to be cut and then transported and packaged. During the process of making and cutting, some burrs may be generated on the surface of the paper tube, which affects the surface finish and the quality of the product. Summary of the invention

[0003] The purpose of the present invention is to provide a paper tube surface polishing device. By using the structure, the smoothness of the paper tube surface is improved and the qualified rate of the product is guaranteed.

[0004] To achieve the above object, the technical solution adopted by the present invention is: a paper tube surface grinding device, including a frame, a conveyor belt arranged on the frame, a positioning mechanism and a grinding mechanism,

[0005] The positioning mechanism includes a first motor, a positioning column, a push cylinder and a push plate, wherein the first motor is installed on the rear side of the conveyor belt, the push cylinder is installed on the front side of the conveyor belt, and the push cylinder is arranged opposite to the first motor, the positioning column is installed on the output shaft of the first motor, the front end of the positioning column is arranged on the rear side directly above the conveyor belt, the push plate is installed on the output shaft of the push cylinder, and the push plate is arranged opposite to the positioning column;

[0006] The grinding mechanism includes a second motor, a grinding wheel, a lifting cylinder and a connecting mechanism. The second motor and the grinding wheel are rotatably mounted on a mounting plate. The middle part of the mounting plate is rotatably connected to the frame. The output shaft of the second motor is connected to the grinding wheel via a belt. The grinding wheel is arranged above the positioning column. The lifting cylinder is installed on the frame on the left side of the pushing cylinder. The output shaft of the lifting cylinder is connected to the mounting plate via the connecting mechanism. When the output shaft of the lifting cylinder is extended or retracted, the mounting plate is driven to rotate via the connecting mechanism, so that the grinding wheel approaches or moves away from the positioning column.

[0007] In the above technical solution, the connecting mechanism includes a connecting shaft and a connecting rod, a vertical plate is provided on the frame, the vertical plate is arranged on the front side of the conveyor belt, the vertical plate is arranged between the lifting cylinder and the pushing cylinder, the connecting shaft is rotatably connected to the vertical plate, the bottom of the mounting plate is fixedly connected to the top surface of the rear end of the connecting shaft, the right side of the connecting rod is fixedly connected to the front end of the connecting shaft, the left side of the connecting rod is rotatably connected to the output shaft of the lifting cylinder, and the bottom of the lifting cylinder is rotatably connected to the frame.

[0008] In the above technical solution, when the output shaft of the lifting cylinder is extended, the connecting rod drives the connecting shaft and the mounting plate to rotate clockwise, so that the bottom outer edge surface of the grinding wheel is close to the top outer edge surface of the positioning column; when the output shaft of the lifting cylinder is retracted, the connecting rod drives the connecting shaft and the mounting plate to rotate counterclockwise, so that the bottom outer edge surface of the grinding wheel is away from the top outer edge surface of the positioning column.

[0009] In the above technical solution, the second motor is installed on the left side of the mounting plate, the grinding wheel is installed on the right side of the mounting plate, and the connecting shaft is arranged below between the second motor and the grinding wheel.

[0010] In the above technical solution, a guide plate is also provided on the frame on the rear side of the pushing cylinder, and the guide plate is arranged on the front side above the conveyor belt, and the left and right sides of the guide plate are bent forward; a through hole is provided in the middle of the guide plate, and the output shaft of the pushing cylinder passes through the through hole and is connected to the pushing plate, and when the output shaft of the pushing cylinder is retracted, the pushing plate retracts into the through hole.

[0011] In the above technical solution, at least two groups of guide rods are provided on the rear side of the guide plate, and at least two guide holes are provided on the frame, and each group of guide rods is respectively inserted into one of the guide holes; a locking bolt is respectively provided on the frame on the side wall of each guide hole, and the end of the locking bolt is against the outer edge surface of the guide rod.

[0012] In the above technical solution, a photoelectric sensor is provided on the right side of the rear end surface of the guide plate, and the photoelectric sensor is electrically connected to the push cylinder.

[0013] In the above technical solution, an annular positioning boss is provided on the outer edge surface of the rear side of the positioning column.

[0014] In the above technical solution, vertical through slots are respectively provided on the frames at the front and rear sides of the conveyor belt, and the pushing cylinder and the first motor are respectively installed on the vertical through slots.

[0015] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0016] 1. In the present invention, the push cylinder and the push plate in the positioning mechanism are used to push the product on the conveyor belt onto the positioning column, the positioning column is used to position the product and drive it to rotate, and then the selected grinding wheel is used to grind the surface of the positioned product. The surface grinding can be performed when the product is transported by the conveyor belt, which effectively improves the surface finish of the product and ensures the qualified rate and quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the first embodiment of the present invention;

[0018] Figure 2 It is a structural schematic diagram of the grinding mechanism in the first embodiment of the present invention.

[0019] Among them: 1. frame; 2. conveyor belt; 3. first motor; 4. positioning column; 5. push cylinder; 6. push plate; 7. second motor; 8. grinding wheel; 9. lifting cylinder; 10. mounting plate; 11. belt; 12. coupling; 13. connecting rod; 14. vertical plate; 15. guide plate; 16. guide rod; 17. locking bolt; 18. photoelectric sensor; 19. annular positioning boss. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0021] Example 1: See Figure 1 , 2 As shown, a paper tube surface grinding device comprises a frame 1, a conveyor belt 2 arranged on the frame 1, a positioning mechanism and a grinding mechanism.

[0022] The positioning mechanism includes a first motor 3, a positioning column 4, a push cylinder 5 and a push plate 6. The first motor 3 is installed on the rear side of the conveyor belt 2, the push cylinder 5 is installed on the front side of the conveyor belt 2, and the push cylinder is arranged opposite to the first motor. The positioning column is installed on the output shaft of the first motor, and the front end of the positioning column is arranged on the rear side directly above the conveyor belt. The push plate is installed on the output shaft of the push cylinder, and the push plate is arranged opposite to the positioning column.

[0023] The grinding mechanism includes a second motor 7, a grinding wheel 8, a lifting cylinder 9 and a connecting mechanism. The second motor and the grinding wheel are rotatably mounted on a mounting plate 10. The middle part of the mounting plate is rotatably connected to the frame. The output shaft of the second motor 7 is connected to the grinding wheel 8 via a belt 11. The grinding wheel is arranged above the positioning column. The lifting cylinder is mounted on the frame on the left side of the pushing cylinder. The output shaft of the lifting cylinder is connected to the mounting plate via the connecting mechanism. When the output shaft of the lifting cylinder is extended or retracted, the mounting plate is driven to rotate via the connecting mechanism, so that the grinding wheel approaches or moves away from the positioning column.

[0024] In this embodiment, in actual use, the conveyor belt conveys the paper tube, and a stepper motor is used for conveying. When a product moves to the push plate, the output shaft of the push cylinder drives the push plate to move backward, and the push plate is used to drive the rear end of the paper tube to be sleeved on the positioning column. Since the first motor drives the positioning column to rotate, the paper tube can be driven to rotate accordingly. Among them, the length of the positioning column is relatively short, and the positioning column is only inserted into a small part of the paper tube. Then the output shaft of the lifting cylinder extends, driving the mounting plate to rotate, so that the grinding wheel moves downward and rests on the top outer edge of the paper tube. Since the second motor drives the grinding wheel to rotate, the surface of the paper tube is polished by the grinding wheel. After grinding is completed, the output shaft of the lifting cylinder retracts, driving the grinding wheel to rise and leave the paper tube, and then the output shaft of the pushing cylinder drives the push plate to move forward to release the limit on the paper tube. As the positioning column rotates and the contact distance between the positioning column and the paper tube is small, the paper tube will separate from the positioning column and return to the conveyor belt due to centrifugal force, waiting for the conveyor belt to move the paper tube away, so that the next product is facing the push plate and the positioning column, waiting for the next product to be ground, and so on. The cycle is efficient and of good quality, ensuring the smoothness of the product surface and improving the product qualification rate.

[0025] See also Figure 1 , 2 As shown, the connecting mechanism includes a connecting shaft 12 and a connecting rod 13, a vertical plate 14 is provided on the frame, the vertical plate is arranged on the front side of the conveyor belt, the vertical plate is arranged between the lifting cylinder and the pushing cylinder, the connecting shaft is rotatably connected to the vertical plate, the bottom of the mounting plate is fixedly connected to the top surface of the rear end of the connecting shaft, the right side of the connecting rod is fixedly connected to the front end of the connecting shaft, the left side of the connecting rod is rotatably connected to the output shaft of the lifting cylinder, and the bottom of the lifting cylinder is rotatably connected to the frame.

[0026] When the output shaft of the lifting cylinder is extended, the connecting rod drives the connecting shaft and the mounting plate to rotate clockwise, so that the bottom outer edge surface of the grinding wheel is close to the top outer edge surface of the positioning column; when the output shaft of the lifting cylinder is retracted, the connecting rod drives the connecting shaft and the mounting plate to rotate counterclockwise, so that the bottom outer edge surface of the grinding wheel is away from the top outer edge surface of the positioning column.

[0027] See also Figure 1 , 2 As shown, the second motor is installed on the left side of the mounting plate, the grinding wheel is installed on the right side of the mounting plate, and the connecting shaft is arranged below between the second motor and the grinding wheel.

[0028] See also Figure 1 As shown, a guide plate 15 is also provided on the frame on the rear side of the pushing cylinder 5, and the guide plate is arranged on the front side above the conveyor belt, and the left and right sides of the guide plate are bent forward; a through hole is provided in the middle of the guide plate, and the output shaft of the pushing cylinder passes through the through hole and is connected with the pushing plate, and when the output shaft of the pushing cylinder is retracted, the pushing plate retracts into the through hole.

[0029] In this embodiment, by setting the guide plate and bending forward on the left and right sides of the guide plate, when the paper tube moves to the push plate, it will be guided by the guide plate to ensure the position of the paper tube and ensure that the paper tube can be smoothly pushed to the positioning column by the push plate.

[0030] See also Figure 1 As shown, at least two groups of guide rods 16 are provided on the rear side of the guide plate, and at least two guide holes are provided on the frame, and each group of guide rods is respectively inserted into one of the guide holes; a locking bolt 17 is respectively provided on the frame on the side wall of each guide hole, and the end of the locking bolt is against the outer edge surface of the guide rod.

[0031] In this embodiment, the width of the conveyor belt is greater than the length of the paper tube. However, during actual processing, the length of each batch of paper tubes is not necessarily the same. In order to ensure that the length between the guide plate and the positioning column is greater than the length of the paper tube, a guide rod and a locking bolt are used to adjust the distance between the guide plate and the positioning column, which is suitable for positioning paper tubes of different sizes.

[0032] See also Figure 1 As shown, a photoelectric sensor 18 is provided on the right side of the rear end surface of the guide plate 15, and the photoelectric sensor is electrically connected to the push cylinder.

[0033] In this embodiment, a controller is provided, which is connected to the stepper motor of the conveyor belt, and is also connected to the first motor, the second motor push cylinder and the lifting cylinder, and is used to control the cooperation of multiple mechanisms. The photoelectric sensor is also connected to the controller. After the photoelectric sensor detects the paper tube, the output shaft of the push cylinder extends for positioning.

[0034] See also Figure 1 As shown, the outer edge surface of the rear side of the positioning column is provided with an annular positioning boss 19. Through the setting of the annular positioning boss, after the push plate pushes the paper tube onto the positioning column, the rear end surface of the paper tube is positioned by the annular positioning boss.

[0035] The frames at the front and rear sides of the conveyor belt are respectively provided with vertical slots, and the push cylinder and the first motor are respectively installed on the vertical slots. This makes it easy to adjust the height between the push plate and the positioning column and the conveyor belt, and is suitable for paper tubes of different diameters.

Claims

1. A paper tube surface polishing device, Features: It includes a frame, a conveyor belt arranged on the frame, a positioning mechanism and a grinding mechanism. The positioning mechanism includes a first motor, a positioning column, a push cylinder and a push plate, wherein the first motor is installed on the rear side of the conveyor belt, the push cylinder is installed on the front side of the conveyor belt, and the push cylinder is arranged opposite to the first motor, the positioning column is installed on the output shaft of the first motor, the front end of the positioning column is arranged on the rear side directly above the conveyor belt, the push plate is installed on the output shaft of the push cylinder, and the push plate is arranged opposite to the positioning column; The grinding mechanism includes a second motor, a grinding wheel, a lifting cylinder and a connecting mechanism. The second motor and the grinding wheel are rotatably mounted on a mounting plate. The middle part of the mounting plate is rotatably connected to the frame. The output shaft of the second motor is connected to the grinding wheel via a belt. The grinding wheel is arranged above the positioning column. The lifting cylinder is mounted on the frame on the left side of the push cylinder. The output shaft of the lifting cylinder is connected to the mounting plate via the connecting mechanism. When the output shaft of the lifting cylinder is extended or retracted, the mounting plate is driven to rotate via the connecting mechanism, so that the grinding wheel approaches or moves away from the positioning column. The connecting mechanism includes a connecting shaft and a connecting rod, a vertical plate is provided on the frame, the vertical plate is arranged on the front side of the conveyor belt, the vertical plate is arranged between the lifting cylinder and the pushing cylinder, the connecting shaft is rotatably connected to the vertical plate, the bottom of the mounting plate is fixedly connected to the top surface of the rear end of the connecting shaft, the right side of the connecting rod is fixedly connected to the front end of the connecting shaft, the left side of the connecting rod is rotatably connected to the output shaft of the lifting cylinder, and the bottom of the lifting cylinder is rotatably connected to the frame; When the output shaft of the lifting cylinder is extended, the connecting rod drives the connecting shaft and the mounting plate to rotate clockwise, so that the bottom outer edge surface of the grinding wheel is close to the top outer edge surface of the positioning column; when the output shaft of the lifting cylinder is retracted, the connecting rod drives the connecting shaft and the mounting plate to rotate counterclockwise, so that the bottom outer edge surface of the grinding wheel is away from the top outer edge surface of the positioning column; The second motor is installed on the left side of the mounting plate, the grinding wheel is installed on the right side of the mounting plate, and the connecting shaft is arranged below between the second motor and the grinding wheel.

2. The paper tube surface polishing device according to claim 1, Features: A guide plate is also provided on the frame on the rear side of the pushing cylinder. The guide plate is arranged on the front side above the conveyor belt, and the left and right sides of the guide plate are bent forward. A through hole is provided in the middle of the guide plate, and the output shaft of the pushing cylinder passes through the through hole and is connected with the pushing plate. When the output shaft of the pushing cylinder is retracted, the pushing plate retracts into the through hole.

3. The paper tube surface polishing device according to claim 2, Features: At least two groups of guide rods are provided on the rear side of the guide plate, and at least two guide holes are provided on the frame, and each group of guide rods is respectively inserted into one of the guide holes; a locking bolt is respectively provided on the frame on the side wall of each guide hole, and the end of the locking bolt is against the outer edge surface of the guide rod.

4. The paper tube surface polishing device according to claim 2, Features: A photoelectric sensor is arranged on the right side of the rear end surface of the guide plate, and the photoelectric sensor is electrically connected to the push cylinder.

5. The paper tube surface polishing device according to claim 1, Features: An annular positioning boss is arranged on the outer edge surface of the rear side of the positioning column.

6. The paper tube surface polishing device according to claim 1, Features: The frames at the front and rear sides of the conveyor belt are respectively provided with vertical through slots, and the pushing cylinder and the first motor are respectively installed on the vertical through slots.

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