Roller spacing adjusting and measuring mechanism

Abstract

The utility model discloses a roller spacing adjusting and measuring mechanism, which comprises an upper roller, first bearing seats are sleeved on two sides of a shaft body of the upper roller, first measuring bearing seats are sleeved on the outer sides of the first bearing seats and positioned on the shaft body of the upper roller, a lower roller is arranged below the upper roller, second bearing seats are sleeved on two sides of a shaft body of the lower roller, and first measuring bearing seats are sleeved on the first measuring bearing seats. A second measuring bearing seat sleeves the outer sides of the two second bearing seats and is located on a shaft body of the lower roller, a servo motor is installed below the second bearing seat, an output shaft of the servo motor is connected with a gear transmission box, the output end of the gear transmission box is fixedly connected with a lead screw, and the top end of the lead screw is inserted into a seat body of the second bearing seat; the automatic roller distance adjusting device has the automatic roller adjusting effect, manual operation is not needed, automatic roller distance adjusting work can be completed only by controlling the reverse rotation direction and the number of rotation turns of the servo motor, the adjusting speed is high, and efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of roller adjustment, in particular to a roller spacing adjustment and measurement mechanism. Background Art

[0002] Roller refers to a cylindrical object that can rotate in a machine. A power source (such as a motor with a reduction gearbox) is often used to drive the roller to drive other materials forward, or to use the pressure generated by the roller to roll the material to achieve the desired thickness, make the surface smoother or produce the desired pattern.

[0003] Roller diameter selection: Generally, we design and decide the rollers of any diameter according to our product requirements (the common roller diameter is 100mm-1000mm). Roller material selection: carbon steel galvanized, carbon steel chrome-plated, carbon steel rubber-coated, aluminum alloy, stainless steel, ABS, etc. Roller type selection: unpowered roller, single-chain roller, double-chain roller, "O" belt roller, tapered roller, grooved roller. Roller fixing method: spring press-in type, internal tooth shaft type, full flat tenon type, through-shaft pin hole type;

[0004] In the existing mechanical roller processing, two groups of rollers are usually required to be set according to different processing requirements, and a gap of a certain distance is left between the two groups of rollers for materials to pass through to achieve the processing effect. However, in actual use, according to different processing requirements, it is usually necessary to adjust the spacing between the rollers to meet normal processing needs. However, most of the roller adjustment work on the existing market is performed manually, and manual adjustment has technical problems such as high difficulty, slow speed and low precision. At the same time, the operator may cause the two rollers to be crushed when operating incorrectly, which reduces the demand for automated use of the machine and does not meet the processing requirements of the development of modern industrial automation. For this reason, the utility model proposes a high-precision roller spacing adjustment mechanism that can be automatically adjusted. Utility Model Content

[0005] The utility model aims to provide a roller spacing adjustment and measurement mechanism to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a roller spacing adjustment and measuring mechanism, including an upper roller, characterized in that a No. 1 bearing seat is sleeved on each of the two sides of the shaft body of the upper roller, a No. 1 measuring bearing seat is sleeved on the outer side of the No. 1 bearing seat and located on the shaft body of the upper roller, a lower roller is arranged below the upper roller, a No. 2 bearing seat is sleeved on each of the two sides of the shaft body of the lower roller, a No. 2 measuring bearing seat is sleeved on the outer side of the two No. 2 bearing seats and located on the shaft body of the lower roller, a servo motor is installed below the No. 2 bearing seat, the output shaft of the servo motor is connected to a gear transmission box, the output end of the gear transmission box is fixedly connected to a screw, the top end of the screw is threadedly connected to an adjusting block, and the adjusting block of the screw is connected to the No. 2 bearing seat of the lower roller.

[0007] Preferably, magnetic grating displacement sensors are fixedly mounted on the front outer walls of the two No. 1 measuring bearing seats.

[0008] Preferably, magnetic heads used in conjunction with magnetic grating displacement sensors are installed on the outer walls of the two No. 2 measuring bearing seats.

[0009] Preferably, a return spring is fixedly connected between the No. 1 bearing seat and the outside of the No. 2 bearing seat, and between the No. 1 measuring bearing seat and the No. 2 measuring bearing seat.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model has the effect of automatic roller adjustment, and does not require manual operation. It only needs to control the rotation direction and number of rotations of the servo motor to complete the automatic roller spacing adjustment work. The adjustment speed is fast and the efficiency is high. By cooperating with the use of a magnetic grating displacement sensor, it has high automatic adjustment accuracy, reduces the spacing adjustment error, effectively improves the product production quality of the roller, and improves the adaptability to different product production requirements. It has a wider range of applications through the free adjustment of the spacing, reduces the limitations of use, and the technical characteristics of automatic adjustment can effectively meet the development requirements of automated processing in modern industry, and has good performance. At the same time, by providing a magnetic grating displacement sensor, the spacing between the two rollers can be precisely measured, and it can be automatically adjusted in conjunction with the adjustment structure, and has the use effect of automatic measurement and adjustment, high adjustment accuracy, small error, and effectively increases production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the front planar structure of a roller in an embodiment of the utility model;

[0013] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the roller front of an embodiment of the utility model;

[0014] Figure 3 It is a schematic diagram of the side adjustment structure of the upper roller and the lower roller in an embodiment of the utility model.

[0015] In the figure: 1. Upper roller; 2. Lower roller; 3. No. 1 bearing seat; 4. No. 1 measuring bearing seat; 5. No. 2 bearing seat; 6. No. 2 measuring bearing seat; 7. servo motor; 8. lead screw; 9. magnetic grating displacement sensor; 10. magnetic head; 11. reset spring; 12. adjustment block. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] See also Figure 1-3The utility model provides an embodiment: a roller spacing adjustment and measuring mechanism, comprising an upper roller 1, a No. 1 bearing seat 3 is sleeved on both sides of the shaft body of the upper roller 1, and a No. 1 measuring bearing seat 4 is sleeved on the outer side of the No. 1 bearing seat 3 and located on the shaft body of the upper roller 1, a lower roller 2 is arranged below the upper roller 1, a No. 2 bearing seat 5 is sleeved on both sides of the shaft body of the lower roller 2, and a No. 2 measuring bearing seat 6 is sleeved on the outer side of the two No. 2 bearing seats 5 and located on the shaft body of the lower roller 2, and a servo motor 7 is installed below the two No. 2 bearing seats 5, and the output shaft of the servo motor 7 is connected to a gear transmission box (shown in the figure, not marked), wherein the gear transmission box is a vertical gear transmission box composed of bevel gears and bevel gears existing on the market, which is a mature prior art product, and this specification will not go into too much detail, a screw rod 8 is fixedly connected to the output end of the gear transmission box, and an adjusting block 12 is threadedly connected to the top of the screw rod 8, and the adjusting block 12 of the screw rod 8 is fixedly connected to the No. 2 bearing seat 5, and the specific reference is made to the attached figure of the specification Figure 3 As shown;

[0020] With this structural design, when it is necessary to adjust the distance between the two rollers, the servo motor 7 can be rotated. When the servo motor 7 rotates, it will drive the screw rod 8 to rotate synchronously through the gear transmission box. When the screw rod 8 rotates, the adjustment block 12 threaded thereon will move up and down along the screw rod 8 (this effect depends on the forward and reverse rotation of the servo motor 7), thereby driving the lower roller 2 to move as a whole through the adjustment block 12, so that the distance between the two rollers can be effectively and dynamically adjusted freely.

[0021] In this embodiment, in order to improve the adjustment accuracy between the two rollers, magnetic grating displacement sensors 9 are fixedly installed on the two No. 1 measuring bearing seats 4;

[0022] Furthermore, magnetic heads 10 used in conjunction with magnetic grating displacement sensors 9 are installed on the outer walls of the two No. 2 measuring bearing seats 6;

[0023] According to the above structure, the magnetic grid displacement sensor is a displacement sensor that uses the magnetic effect between the magnetic grid and the magnetic head to measure. It is a new type of digital sensor with low cost and easy installation and use. When necessary, the original magnetic signal (magnetic grid) can be erased and re-recorded;

[0024] It can also be installed on the machine tool and then record the magnetic signal, which is very beneficial for eliminating installation errors and geometric errors of the machine tool itself, as well as improving measurement accuracy. In addition, laser positioning and magnetic recording can be used without the need for photosensitive, corrosion and other processes, so the accuracy is higher, the positioning accuracy can reach ±0.002mm / 50mm, and the resolution is 1~5um;

[0025] In the utility model, when in use, the magnetic grating displacement sensor 9 can be used in conjunction with the magnetic head 10. The magnetic grating displacement sensor 9 can detect the distance between the magnetic head 10, so as to determine the actual adjustment distance between the two rollers. In actual use, it has the effect of electronic measurement and can effectively improve the adjustment accuracy of the rollers.

[0026] In this embodiment, a return spring 11 is fixedly connected between the outer portions of the No. 1 bearing seat 3 and the No. 2 bearing seat 5 and between the No. 1 measuring bearing seat 4 and the No. 2 measuring bearing seat 6. The spring between the No. 1 measuring bearing seat 4 and the No. 2 measuring bearing seat 6 can make the precision bearings in the two bearing seats always closely match the roller necks. When the roller spacing between the No. 1 roller and the No. 2 roller changes, the No. 1 measuring bearing seat 4 and the No. 2 measuring bearing seat 6 both follow, thereby eliminating the installation gap between the roller neck and the measuring bearing, making the measurement data more accurate.

[0027] Working principle: When the spacing between the two rollers needs to be adjusted, the servo motor 7 can be rotated. When the servo motor 7 rotates, it will drive the screw rod 8 to rotate synchronously through the gear transmission box. When the screw rod 8 rotates, the No. 2 bearing seat 5 threadedly connected thereto will move up and down along the screw rod 8 (this effect depends on the forward and reverse rotation of the servo motor 7), thereby driving the lower roller 2 to move as a whole through the up and down displacement adjustment of the No. 2 bearing seat 5, so that the spacing between the two rollers can be effectively adjusted dynamically and freely;

[0028] The utility model is provided with a magnetic grating displacement sensor 9 and a magnetic head 10 used in conjunction with it. When the roller is installed on the actual machine equipment, the magnetic grating displacement sensor 9 can measure the actual spacing between the two rollers by cooperating with the magnetic head 10, and transmit the signal to the PLC controller of the machine control assembly. The PLC controller compares the actual spacing with the preset adjustment spacing. When a positive error or a negative error is found, a forward or reverse signal is sent to the servo motor 7, thereby driving the screw rod 8 to rotate, so that the screw rod 8 drives the lower roller 2 to adjust the spacing again. During this adjustment, the magnetic grating displacement sensor 9 measures the actual adjustment spacing. At this time, the actual measured data is compared with the required spacing numerical data, so that the adjustment signal is sent to the servo motor 7 through the PLC of the external whole machine for up and down adjustment. Finally, the required roller spacing distance can be achieved between the rollers, thereby completing the use effect of automated high-precision measurement and adjustment, and having the technical thermal characteristics of spacing measurement and automatic adjustment;

[0029] It should also be noted that the data transmission and control effect between the above-mentioned sensor and the external PLC and servo motor is a common and simple control technology solution in the existing PLC control field, which is a mature existing technology and will not be described in detail in this manual;

[0030] To sum up, the utility model has the effect of automatic roller adjustment. It does not require manual operation. It only needs to control the rotation direction and number of revolutions of the servo motor to complete the automatic roller spacing adjustment work. The adjustment speed is fast and the efficiency is high. By cooperating with the use of a magnetic grating displacement sensor, it has high automatic adjustment accuracy, reduces the spacing adjustment error, effectively improves the product production quality of the roller, and improves the adaptability to different product production requirements. It has a wider range of applications through the free adjustment of the spacing, reduces the limitations of use, and the technical characteristics of automatic adjustment can effectively meet the requirements of the development of automated processing in modern industry, and has good performance.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A roller spacing adjustment and measurement mechanism, comprising an upper roller (1), characterized in that: A No. 1 bearing seat (3) is sleeved on each side of the shaft body of the upper roller (1); a No. 1 measuring bearing seat (4) is sleeved on the outer side of the No. 1 bearing seat (3) and located on the shaft body of the upper roller (1); a magnetic grating displacement sensor (9) is fixedly mounted on each of the two No. 1 measuring bearing seats (4); a lower roller (2) is arranged below the upper roller (1); a No. 2 bearing seat (5) is sleeved on each side of the shaft body of the lower roller (2); a No. 2 measuring bearing seat (6) is sleeved on the outer side of the two No. 2 bearing seats (5) and located on the shaft body of the lower roller (2); a servo motor (7) is mounted below the No. 2 bearing seat (5); an output shaft of the servo motor (7) is connected to a gear transmission box; a lead screw (8) is fixedly connected to the output end of the gear transmission box.

2. The roller spacing adjustment and measurement mechanism according to claim 1 is characterized in that: The top end of the screw rod (8) is threadedly connected with an adjusting block (12), and the adjusting block (12) of the screw rod (8) is connected to the No. 2 bearing seat (5) of the lower roller (2).

3. The roller spacing adjustment and measurement mechanism according to claim 1, characterized in that: A magnetic head (10) used in conjunction with a magnetic grating displacement sensor (9) is installed on the outer walls of the two No. 2 measuring bearing seats (6).

4. The roller spacing adjustment and measurement mechanism according to claim 1, characterized in that: A return spring (11) is fixedly connected between the outer portions of the No. 1 bearing seat (3) and the No. 2 bearing seat (5), and between the No. 1 measuring bearing seat (4) and the No. 2 measuring bearing seat (6).

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