Automatic roll centering device

Abstract

The utility model discloses a kind of automatic centering device of material roll, including rack, main motor is set on rack, main motor connects a main shaft, the left and right symmetrical plate of being set on main shaft is transferred, multiple left top head is set on left side transfer plate, left top head connects telescopic link, telescopic link connects adjustment group, laser range finder is set on left top head side, right top head is set on right side transfer plate corresponding left top head, and right top head is connected right side transfer plate by pneumatic cylinder.The utility model structure design is reasonable and ingenious, after placing the both ends of material roll between left top head and right top head, laser range finder measures the distance between it and material roll, and data transmission is given PLC, control servo motor positive and negative rotation, so that adjustment group controls telescopic link left and right movement, simultaneously manual control pneumatic cylinder inflation or deflation, realize the left and right movement of material roll, convenient and fast, and distance control precision.

Description

Technical Field

[0001] This utility model relates to an automatic centering device for rolled materials. Background Technology

[0002] When packaging materials are loaded onto the roll rack, if the roll is not centered, it will cause misalignment during subsequent printing or packaging, affecting the quality of the packaging materials. Therefore, after the roll is installed, it needs to be centered. The traditional adjustment method is to use a hand crank for calibration, which is time-consuming and has low accuracy, requiring repeated adjustments. Summary of the Invention

[0003] To overcome the above-mentioned shortcomings, this utility model provides an automatic centering device for material rolls, which is convenient and quick to adjust and has high accuracy.

[0004] To achieve this objective, the structure adopted by this utility model is as follows: an automatic centering device for material rolls, including a frame, a main motor mounted on the frame, a main shaft connected to the main motor, rotating plates symmetrically arranged on the main shaft, multiple left top heads mounted on the left rotating plate, each left top head connected to a telescopic rod, the telescopic rod connected to an adjustment group, a laser rangefinder mounted on one side of the left top head, the laser rangefinder transmitting signals to a PLC, the PLC controlling the movement of the adjustment group, and a right top head mounted on the right rotating plate corresponding to the left top heads, the right top head connected to the right rotating plate via a cylinder.

[0005] The adjustment assembly includes a servo motor connected to the left rotating plate. The servo motor is connected to a rotating sleeve via a transmission belt. The rotating sleeve is connected to a bushing via a bearing. The bushing is connected to the left rotating plate. A lead screw is connected inside the rotating sleeve. The lead screw is connected to a telescopic rod of the left top head. The telescopic rod passes through the bushing and connects to the left top head. A limit block is provided on the outside of the telescopic rod. A limit groove is provided on the inner surface of the bushing. The limit block is engaged in the limit groove.

[0006] Its beneficial effects are: the structure of this utility model is reasonable and ingenious. After the two ends of the material roll are placed between the left top head and the right top head, the laser rangefinder measures the distance between it and the material roll and transmits the data to the PLC to control the servo motor to rotate forward and backward, so that the adjustment group controls the telescopic rod to move left and right. At the same time, the cylinder is manually controlled to inflate or deflate, so as to realize the left and right movement of the material roll. It is convenient, fast and accurate in distance control. Attached Figure Description

[0007] This utility model will be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is the front view of this utility model; Figure 2 This is a partial enlarged view of the present invention. Detailed Implementation

[0008] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0009] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0010] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components; a fixed connection can be welding or adhesive bonding. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0011] like Figure 1 , Figure 2 The automatic coil centering device shown includes a frame 1, on which a main motor 3 is mounted. The main motor 3 is connected to a main shaft 2, and the main motor 3 drives the main shaft 2 to rotate. Rotating plates 4 are symmetrically arranged on the main shaft 2. Multiple left top heads 5 are mounted on the left rotating plate. Each left top head 5 is connected to a telescopic rod 6, which is connected to an adjustment group. The adjustment group adjusts the left and right movement of the telescopic rod 6 via a servo motor 7. A laser rangefinder 10 is mounted on one side of each left top head 5. The laser rangefinder transmits signals to a PLC, and the PLC controls the adjustment group to move the left and right top heads 5 by calculating the distance. A right top head 8 is mounted on the right rotating plate corresponding to the left top heads 5, and the right top head 8 is connected to the right rotating plate via a cylinder 9.

[0012] After placing both ends of the material roll between the left top head 5 and the right top head 8, the laser rangefinder 10 measures the distance between itself and the material roll and transmits the data to the PLC. After calculation, the PLC controls the servo motor 7 to rotate forward and backward, causing the adjustment group to control the telescopic rod 6 to move left and right. At the same time, the cylinder 9 is manually controlled to inflate or deflate, realizing the left and right movement of the material roll. When the laser rangefinder 10 measures the distance in real time and reaches the set value, the servo motor 7 stops running. At this time, the material roll has reached the center position. It is convenient and quick to use, and the distance control is precise.

[0013] The adjustment assembly includes a servo motor 7 connected to the left rotating plate. The servo motor 7 is connected to a rotating sleeve 11 via a transmission belt 13. The rotating sleeve 11 is a hollow structure, and the servo motor 7 drives the rotating sleeve 11 to rotate. One end of the rotating sleeve 11 is connected to a bushing 14 via a bearing. The bushing 14 is connected to the left rotating plate. A lead screw 12 is connected to the center of the rotating sleeve 11. The rotation of the rotating sleeve 11 drives the rotation of the lead screw 12. One end of the lead screw is connected to the rotating sleeve 11, and the other end is connected to the telescopic rod 6 of the left top head 5 via a thread. The telescopic rod 6 passes through the bushing 14 and connects to the left top head 5. A limit block is provided on the outer side of the telescopic rod 6, and a limit groove is provided on the inner surface of the bushing 14. The limit block is engaged in the limit groove. When the lead screw 12 rotates, the telescopic rod 6 moves back and forth along the limit groove, driving the left top head 5 to move back and forth.

[0014] Based on the above description and inspired by this utility model, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An automatic centering device for rolled materials, comprising a frame (1), a main motor (3) mounted on the frame (1), and the main motor (3) connected to a main shaft (2), characterized in that, The main shaft (2) is symmetrically arranged with rotating plates (4) on the left and right sides. Multiple left top heads (5) are arranged on the left rotating plate. The left top head (5) is connected to the telescopic rod (6). The telescopic rod (6) is connected to the adjustment group. A laser rangefinder (10) is arranged on one side of the left top head (5). The laser rangefinder (10) transmits signals to the PLC. The PLC controls the movement of the adjustment group. A right top head (8) is arranged on the right rotating plate corresponding to the left top head (5). The right top head (8) is connected to the right rotating plate through a cylinder (9).

2. The automatic centering device for rolled materials according to claim 1, characterized in that, The adjustment group includes a servo motor (7), which is connected to the left rotating plate. The servo motor (7) is connected to the rotating sleeve (11) via a transmission belt (13). The rotating sleeve (11) is connected to the bushing (14) via a bearing. The bushing (14) is connected to the left rotating plate. A lead screw (12) is connected inside the rotating sleeve (11). The lead screw (12) is connected to the telescopic rod (6) of the left top head (5). The telescopic rod (6) passes through the bushing (14) and is connected to the left top head (5). A limit block is provided on the outside of the telescopic rod (6). A limit groove is provided on the inner surface of the bushing (14). The limit block is inserted into the limit groove.

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