Round cylinder autorotation mechanism

Abstract

The utility model discloses an autorotation mechanism for a circular barrel, and belongs to the field of barrel machining. The utility model relates to a cylinder autorotation mechanism which comprises a base station and further comprises vertical plates fixedly connected to the two sides of the base station. The driving rollers are rotationally connected to the vertical plates, the two sets of driving rollers rotate in the same direction, and a positioning area used for containing a circular cylinder is formed between the two sets of driving rollers; one end of each clamping arm is rotationally connected to the vertical plate, the other end of each clamping arm is rotationally connected with a clamping roller, the clamping rollers are arranged above the circular cylinder, and a tightening part is arranged on the vertical plate and used for controlling the two clamping arms to be close to or away from each other; the two driving rollers which synchronously rotate in the same direction drive the circular barrel to stably rotate, and the two clamping rollers above are matched to limit the position of the circular barrel in the positioning area with the variable space, so that different circular barrels are convenient to take and adapt, the position precision of the circular barrel can be guaranteed, and the working efficiency is improved. Therefore, the subsequent trademark manufacturing precision of the surface of the cylindrical can body is improved.

Description

Technical Field

[0001] This utility model relates to the field of cylinder processing technology, and in particular to a circular cylinder rotation mechanism. Background Technology

[0002] Food packaging cans are cylindrical (or near-cylindrical) containers made of metal, glass, plastic, or other materials used to hold food. They have functions such as sealing, moisture prevention, pollution prevention, and ease of transportation and storage. They are widely used in the packaging of fruits, snacks, and other foods. With their diverse materials, reliable sealing, and convenient user experience, they not only ensure food safety but also become an important carrier for brand image display. Therefore, food packaging cans often have trademarks printed or laser-engraved on them to display the brand.

[0003] In existing technologies, on mass production lines, rollers are mainly used to support metal packaging cans. The spindle box drives the rollers to rotate, which in turn causes the packaging can to rotate. In conjunction with printing or engraving equipment, trademarks are made on the surface of the cylindrical can. Roller assemblies are usually designed for packaging cans of a certain size range. For packaging cans that are too large or too small, they may not be able to provide stable support and positional constraints, resulting in low precision in the trademark production on the surface of the can. Utility Model Content

[0004] The purpose of this invention is to solve the problem that roller assemblies in the prior art cannot provide stable support and positional limitation for packaging cans, and to propose a circular cylinder rotation mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cylindrical rotating mechanism includes a base and further includes: upright plates fixedly connected to both sides of the base; drive rollers rotatably connected to the upright plates, with two sets of drive rollers rotating in the same direction and a positioning area for placing the cylindrical cylinder formed between the two sets of drive rollers; and two sets of clamping arms, one end of each clamping arm being rotatably connected to the upright plate and the other end of each clamping arm being rotatably connected to a clamping roller, the clamping roller being positioned above the cylindrical cylinder. The upright plates are provided with a converging portion for controlling the two sets of clamping arms to move closer to or further apart from each other.

[0007] To adapt to the position limitation of the cylindrical tube, preferably, the converging part includes: an adjusting rod that is raised and lowered on the upright plate; and a connecting rod, wherein the clamping arm is provided with a positioning shaft, and the two ends of the connecting rod are rotatably connected to the adjusting rod and the positioning shaft respectively, so that when the adjusting rod is raised and lowered, the two sets of clamping arms move closer to or further away from each other.

[0008] To further improve the positional accuracy of the cylindrical tube, a spring is also included. A hanging rod is provided at the bottom of the base, and the two ends of the spring are respectively hung on the hanging rod and the adjusting rod.

[0009] Preferably, the upright plate has an adjustment groove, and the end of the adjustment rod passes through the adjustment groove.

[0010] Furthermore, a bolt is threaded onto the base, and the top of the bolt abuts against the circumferential surface of the adjusting rod.

[0011] Furthermore, the ratio of the positioning axis to the two ends of the clamping arm is 1:3.

[0012] To improve the synchronization of the cylindrical drive, preferably, a drive unit is also included, the drive unit comprising: a motor fixedly mounted on the base, the output end of the motor being fixedly connected to a second pulley; and a first pulley fixedly connected to the end of the drive roller, the first pulley being rotatably connected to the second pulley via a belt.

[0013] To improve the rotational accuracy of the cylindrical cylinder, a rubber ring is further provided on the circumferential surface of the drive roller, and multiple sets of the rubber rings are equidistantly distributed along the axis of the drive roller.

[0014] Preferably, a raised ring is fixedly connected to the circumferential surface of the clamping roller, and multiple sets of the raised rings are equidistantly distributed along the axis of the clamping roller.

[0015] Preferably, the upright plate has a first rotating groove and a second rotating groove, the end of the drive roller is rotatably connected in the second rotating groove, and one end of the clamping arm is rotatably connected in the first rotating groove via a rotating shaft.

[0016] Compared with the prior art, the present invention provides a circular cylinder rotation mechanism, which has the following beneficial effects:

[0017] 1. The cylindrical self-rotating mechanism opens two clamping rollers by raising the adjusting rod, thereby expanding the positioning area space for easy picking and putting. When the cylindrical tube is used to make a trademark, the weight of the adjusting rod causes one end connected to the connecting rod to descend, thereby pulling the two clamping arms closer to each other to clamp and limit the cylindrical tube, so as to ensure the stability and high precision of subsequent trademark production. In other embodiments, this method can also be used to detect the surface quality of the cylindrical tube.

[0018] 2. The circular cylinder rotation mechanism, by hanging the two ends of the spring on the hanging rod and the adjusting rod respectively, can further apply a downward pulling force to the adjusting rod. On the one hand, it increases the clamping force on the circular cylinder in the positioning area, and on the other hand, it can quickly reset and restore the cylinder when the clamping arm is opened.

[0019] 3. The circular cylinder rotation mechanism can change the height of its protrusion on the base by rotating the bolt, which can change the descent distance of the adjusting rod. This is mainly to prevent excessive clamping force from being applied to the circular cylinder when clamping a large circular cylinder, which could cause deformation.

[0020] 4. The circular cylinder rotation mechanism increases the friction between the cylinder and the drive roller by sleeved with a rubber ring on the circumference of the drive roller and fixedly connected with a protruding ring on the circumference of the clamping roller, thereby preventing the cylinder from slipping during rotation and ensuring controllable rotation accuracy.

[0021] The parts not mentioned in this device are the same as or can be implemented using existing technology. This utility model drives the cylindrical cylinder to rotate stably by two synchronously rotating drive rollers, and works with two clamping rollers above to limit the position of the cylindrical cylinder in the positioning area of ​​the variable space. This not only makes it convenient to pick up and adapt to different cylindrical cylinders, but also ensures the positional accuracy of the cylindrical cylinder, thereby improving the accuracy of subsequent label production on the surface of the cylindrical cylinder can. Attached Figure Description

[0022] Figure 1 This is a first-view perspective perspective view of a circular cylinder rotation mechanism proposed in this utility model.

[0023] Figure 2 This is a second-view perspective perspective view of a circular cylinder rotation mechanism proposed in this utility model;

[0024] Figure 3 This is a partial structural diagram of a cylindrical rotating mechanism proposed in this utility model. Figure 1 ;

[0025] Figure 4 This utility model proposes a circular cylinder rotation mechanism. Figure 3 A schematic diagram of the structure of part A;

[0026] Figure 5 This is a partial structural diagram of a cylindrical rotating mechanism proposed in this utility model. Figure 2 ;

[0027] Figure 6 This is a diagram showing the usage state of a circular cylinder rotation mechanism proposed in this utility model.

[0028] In the diagram: 1. Base; 2. Vertical plate; 201. Adjustment groove; 202. Second rotating groove; 203. First rotating groove; 3. Drive roller; 301. First pulley; 302. Rubber ring; 4. Clamping roller; 401. Protruding ring; 5. Clamping arm; 501. Positioning shaft; 502. Connecting rod; 6. Adjusting rod; 601. Spring; 602. Hanging rod; 603. Bolt; 7. Motor; 701. Belt. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Example:

[0032] Reference Figures 1-6 A cylindrical rotating mechanism includes a flat base 1 with four legs at its bottom. Two upright plates 2 are symmetrically mounted on either side of the top of the base 1. Two drive rollers 3 rotating in the same direction are rotatably connected to the top of the upright plates 2. A positioning area for placing the cylindrical cylinder is formed between the two sets of drive rollers 3, and the two are in line contact. When the drive rollers 3 rotate synchronously, the cylindrical cylinder placed in the positioning area rotates in the opposite direction to the rotation of the drive rollers 3. This characteristic allows for the design of printing, spraying, or engraving directions. Two clamping arms 5 extend above the cylindrical cylinder, with one end of each clamping arm 5 rotatably connected to the upright plates 2. The other end of the clamping arm 5 is rotatably connected to a clamping roller 4. The clamping roller 4 abuts and fits against the upper half of the cylinder to form a line contact. A converging part is provided on the vertical plate 2. When the cylinder is picked up or placed in the positioning area, the two clamping rollers 4 can be moved away to expand the positioning area space and facilitate picking and placing. During the labeling operation, the two clamping rollers 4 are brought closer to each other to apply pressure to the cylinder. While the two clamping rollers 4 apply clamping force to the cylinder, the driving roller 3 supporting it below further applies a covering force to limit the cylinder in the positioning area from four directions, thereby ensuring the stability and accuracy of the clamping position.

[0033] In the above design, the cylindrical cylinder is driven to rotate stably by two synchronously rotating drive rollers 3, and the position of the cylindrical cylinder in the positioning area of ​​the variable space is limited by the two clamping rollers 4 above. This not only makes it convenient to pick up and adapt to different cylindrical cylinders, but also ensures the positional accuracy of the cylindrical cylinder, thereby improving the accuracy of the subsequent label production on the surface of the cylindrical cylinder can.

[0034] Specifically, the converging part includes: an adjusting rod 6 that can slide up and down on the upright plate 2 and has a counterweight function; and two connecting rods 502 at both ends of the adjusting rod 6. The clamping arms 5 are provided with positioning shafts 501. The two ends of the connecting rods 502 are rotatably connected to the adjusting rod 6 and the positioning shafts 501, respectively. When the cylindrical cylinder is picked up or put down in the positioning area, the adjusting rod 6 rises to open the two clamping rollers 4, thereby expanding the positioning area space and facilitating picking up and putting down. When the cylindrical cylinder is used to make a trademark, the weight of the adjusting rod 6 causes one end connected to the connecting rod 502 to descend, thereby pulling the two clamping arms 5 closer to each other and clamping and limiting the cylindrical cylinder to ensure the stability and high precision of the subsequent trademark production. In other embodiments, this method can also be used to detect the surface quality of the cylindrical cylinder.

[0035] In addition, a hanging rod 602 is provided at the bottom of the base 1. The two ends of the spring 601 are respectively hung on the hanging rod 602 and the adjusting rod 6, which can further apply a downward pulling force to the adjusting rod 6. On the one hand, it can increase the clamping force on the cylindrical cylinder in the positioning area, and on the other hand, it can quickly reset and restore the cylinder when the clamping arm 5 is opened.

[0036] Specifically, an elongated adjustment groove 201 is provided on the upright plate 2, and the end of the adjustment rod 6 passes through the adjustment groove 201. The vertically provided adjustment groove 201 is used to limit the lifting range of the adjustment rod 6 and prevent it from deviating, so as to ensure the stability and uniformity when applying downward pulling force to the clamping arm 5.

[0037] A bolt 603 is threaded onto the base 1. The top of the bolt 603 abuts against the circumferential surface of the adjusting rod 6. By rotating the bolt 603, its exposed height on the base 1 can be changed, which can change the descent distance of the adjusting rod 6. This is mainly to prevent excessive clamping force from being applied to the cylindrical cylinder when clamping a large cylindrical cylinder, which could cause it to deform.

[0038] Here, the ratio of the positioning shaft 501 to the two ends of the clamping arm 5 is 1:3. This means that the clamping roller 4 can exert a pulling force on the two clamping arms 5 to bring them closer together, without causing excessive clamping force that could lead to deformation.

[0039] Specifically, the drive unit includes: a motor 7 fixedly mounted on the base 1, with a second pulley fixedly connected to the output end of the motor 7; a first pulley 301 fixedly connected to the end of the drive roller 3, the first pulley 301 being rotatably connected to the second pulley via a belt 701. Here, both the first pulley 301 and the second pulley have toothed structures, and the belt 701 is a toothed belt to ensure the accuracy of meshing transmission. Furthermore, the cylindrical cylinder placed in the positioning area is located above the belt 701, preventing the cylindrical cylinder from contacting the belt 701.

[0040] In addition, a rubber ring 302 is fitted on the circumferential surface of the drive roller 3. Multiple sets of rubber rings 302 are equidistantly distributed along the axis of the drive roller 3. A raised ring 401 is fixedly connected on the circumferential surface of the clamping roller 4. Multiple sets of raised rings 401 are equidistantly distributed along the axis of the clamping roller 4. The main purpose is to increase the friction with the cylindrical cylinder, prevent the cylindrical cylinder from slipping when rotating, and ensure that the rotation accuracy is controllable.

[0041] Two first rotating grooves 203 and two second rotating grooves 202 are provided on the upright plate 2, with the two first rotating grooves 203 located on both sides below the two second rotating grooves 202. The adjusting groove 201 is located in the middle of the two first rotating grooves 203. The end of the drive roller 3 is rotatably connected in the second rotating groove 202, and one end of the clamping arm 5 is rotatably connected in the first rotating groove 203 through a rotating shaft to ensure that the rotation position does not interfere.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A circular cylinder rotation mechanism, comprising a base (1), characterized in that, Also includes: The upright plates (2) are fixedly connected to both sides of the base (1); Rotate the drive roller (3) connected to the vertical plate (2), the two sets of drive rollers (3) rotate in the same direction, and a positioning area for placing the cylindrical tube is formed between the two sets of drive rollers (3); Two sets of clamping arms (5), one end of which is rotatably connected to the vertical plate (2), and the other end of which is rotatably connected to a clamping roller (4), which is positioned above the cylindrical cylinder. The upright plate (2) is provided with a converging part, which is used to control the two sets of clamping arms (5) to move closer or further apart.

2. The circular cylinder rotation mechanism according to claim 1, characterized in that, The converging portion includes: The adjusting rod (6) is installed on the vertical plate (2); Linkage (502) The clamping arm (5) is provided with a positioning shaft (501), and the two ends of the connecting rod (502) are rotatably connected to the adjusting rod (6) and the positioning shaft (501) respectively. When the adjusting rod (6) rises and falls, the two sets of clamping arms (5) move closer to each other or further away.

3. The circular cylinder rotation mechanism according to claim 2, characterized in that, It also includes a spring (601), and a hanging rod (602) is provided at the bottom of the base (1). The two ends of the spring (601) are respectively hung on the hanging rod (602) and the adjusting rod (6).

4. A circular cylinder rotation mechanism according to claim 2 or 3, characterized in that, An adjustment groove (201) is provided on the upright plate (2), and the end of the adjustment rod (6) passes through the adjustment groove (201).

5. A circular cylinder rotation mechanism according to claim 4, characterized in that, The base (1) is threaded with a bolt (603), the top of which abuts against the circumferential surface of the adjusting rod (6).

6. A circular cylinder rotation mechanism according to claim 2, characterized in that, The ratio of the distance between the positioning axis (501) and the two ends of the clamping arm (5) is 1:

3.

7. A circular cylinder rotation mechanism according to claim 1, characterized in that, It also includes a drive unit, which includes: A motor (7) is fixedly installed on the base (1), and a second pulley is fixedly connected to the output end of the motor (7); The first pulley (301) is fixedly connected to the end of the drive roller (3), and the first pulley (301) is rotatably connected to the second pulley via the belt (701).

8. A circular cylinder rotation mechanism according to claim 1 or 7, characterized in that, A rubber ring (302) is fitted on the circumferential surface of the drive roller (3), and multiple sets of the rubber rings (302) are equidistantly distributed along the axis of the drive roller (3).

9. A circular cylinder rotation mechanism according to claim 1, characterized in that, The clamping roller (4) has a raised ring (401) fixedly connected to its circumferential surface, and multiple sets of the raised rings (401) are equidistantly distributed along the axis of the clamping roller (4).

10. A circular cylinder rotation mechanism according to claim 1, characterized in that, The upright plate (2) is provided with a first rotating groove (203) and a second rotating groove (202). The end of the drive roller (3) is rotatably connected in the second rotating groove (202), and one end of the clamping arm (5) is rotatably connected in the first rotating groove (203) through a rotating shaft.

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