CN219141791U

CN219141791U - Accurate length measuring mechanism in material area

Info

Publication number: CN219141791U
Application number: CN202223557023.1U
Authority: CN
Inventors: 汪志川; 敬萧; 谢风浪
Original assignee: Hubei Hele Door Industry Co Ltd
Current assignee: Hubei Hele Door Industry Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-06
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a precise length measuring mechanism for a material belt, which comprises a frame, wherein a group of measuring roller assemblies are connected onto the frame, each measuring roller assembly comprises an upper measuring roller and a lower measuring roller, one end of each lower measuring roller is connected with an encoder, at least one group of pinch roller assemblies are symmetrically arranged on two sides of each measuring roller assembly respectively, each pinch roller assembly comprises an upper pinch roller and a lower pinch roller, each pinch roller assembly is parallel to the corresponding measuring roller assembly and is rotationally connected with the frame, a movable groove matched with each upper pinch roller is formed in the frame, two ends of each upper pinch roller are respectively connected into each movable groove, and a vibration reduction device for reducing vibration of the material belt is arranged on each movable groove. The pinch roll assemblies and the damping devices thereof which are arranged at the two sides of the measuring roll assembly are utilized to effectively eliminate vibration in the material belt measuring process, so that accurate measurement of the material belt is realized.

Description

Accurate length measuring mechanism in material area

Technical Field

The utility model relates to the field of material belt production and processing equipment, in particular to a material belt accurate length measuring mechanism.

Background

Tape is a common type of production material and many products require use, for example, tape is required in cell production. In order to avoid wasting the material belt and improve the processing precision of the product, the material belt length measuring equipment is often arranged at the material belt feeding position to feed according to the required quantity. But present material area length measurement equipment just cooperates through encoder and pivot, confirms the length through pivot material area through encoder statistics pivot pivoted week number, and the material area is simple when the measurement equipment of this kind of structure is measured and is walked around the pivot, and does not have other supplementary fixed, influences measuring precision, and simultaneously, the vibration that the material area produced in the conveying process also can transmit the measuring roller, and then influences the accurate measurement of encoder to the data.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a precise length measuring mechanism for a material belt.

The aim of the utility model is realized by the following technical scheme:

the utility model provides a accurate length measurement mechanism in material area, includes the frame, be connected with a set of measuring roller subassembly in the frame, measuring roller subassembly includes measuring roller and lower measuring roller, measuring roller's one end is connected with the encoder down, at least a set of pinch roll subassembly of symmetrical arrangement respectively in measuring roller subassembly's both sides, the pinch roll subassembly includes pinch roll and lower pinch roll, pinch roll subassembly and measuring roller subassembly are parallel to each other and rotate with the frame and be connected, set up in the frame with go up the movable groove of pinch roll adaptation, go up the both ends of pinch roll connect respectively in the movable groove, and be equipped with the damping device who is used for reducing the vibration in material area on the movable groove.

In the scheme, the length measuring mechanism calculates the length of the material belt by counting the rotating number of turns of the lower pinch roll along with the material belt through the encoder. In the material belt measurement process, the pinch roll assemblies arranged on two sides of the measuring roll assemblies are used for limiting and guiding the material belt to a certain extent, so that the direction deviation and vibration in the material belt conveying process are prevented, and the accurate measurement of the encoder on the measuring roll is further affected. The vibration damper at the end part of the upper pinch roll can effectively buffer and absorb vibration generated when the material belt passes through the pinch roll assembly. Through this scheme, the removal of material area and the rotation of measuring roller are exactly matchd can be realized to material area length measurement mechanism to ensure the accurate measurement of encoder to material area length.

Further, a parallel line test coupler is connected between the lower measuring roller and the encoder. The encoder is connected with the lower measuring roller through the parallel line test coupler, so that coaxiality errors generated when the lower measuring roller is installed with the encoder can be eliminated, and meanwhile, by means of the flexible connection mode, eccentricity generated when the pinch roller rotates can be adjusted, so that the encoder can accurately calculate the rotation number of the pinch roller, and the measuring precision of the material belt is improved.

Further, be equipped with in the frame be used for measuring the wide subassembly of material area width and with the spout and the scale mark of wide subassembly adaptation of survey, the wide subassembly of survey includes two sets of wheel and slider that lean on, wheel pass through slider sliding connection in on the spout, just two sets of wheel edges of wide subassembly of survey are followed the both sides evenly distributed of measuring roller subassembly. In this scheme, survey wide subassembly can measure the width of material area, combines the material area length that the encoder measured, obtains the material area. In addition, the side wheel in the width measurement assembly also has the functions of limiting and guiding, and can judge whether the moving direction of the material measurement belt is deviated or not according to whether the position of the side wheel in the chute is changed or not so as to adjust in time.

Further, the both ends of going up the measuring roller are equipped with preloading device, preloading device includes pretension spring, screw and nut, and the screw loops through pretension spring and passes and go up the measuring roller and be connected with the nut, and nut fixed connection is in the frame, and is connected with the gyro wheel at the center rotation of last measuring roller. The relative distance between the idler wheel at the center of the upper measuring roller and the lower measuring roller is adjusted through the pre-tightening device, so that the tightness degree of the material belt passing through the measuring roller assembly is proper, the probability of vibration of the material belt at the measuring roller assembly is reduced, and the material belt measuring precision is improved.

Further, the damping device comprises a screw rod, a damping spring and a fixed block, wherein the fixed block is fixedly connected to the end part of the movable groove, the damping spring is located in the movable groove, the screw rod penetrates through the fixed block to be abutted to one end of the damping spring, and the other end of the damping spring is fixedly connected with the end part of the upper pinch roll. The vibration damper used for buffering vibration damping and eliminating vibration influence of the material belt is relatively simple in structure, convenient to assemble and disassemble and low in cost.

Further, connecting seats are arranged on two sides of the frame. The connecting seat is mainly convenient for connecting the length measuring mechanism with external feeding equipment.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the pinch roll assemblies and the damping devices positioned at the end parts of the pinch roll assemblies are arranged at the two sides of the measuring roll assemblies, so that vibration or vibration caused by uneven particle motion speed in the material belt transmission process is eliminated, and the accuracy of the mechanism on the length measurement of the material belt is ensured.

2. According to the utility model, the width measuring mechanism is utilized to measure the width of the material belt, and the length measuring value of the material belt is combined with the encoder to obtain the area of the material belt, so that the material belt can be provided with a reference quantity for quantitative supply. Meanwhile, the setting of the width measuring mechanism is also beneficial to the deviation correction and adjustment of the moving direction of the material belt in the material belt transmission process.

3. According to the utility model, the pre-tightening device is arranged at the end part of the upper measuring roller, the relative distance between the upper measuring roller and the lower measuring roller is regulated and controlled, so that the tightness degree of the material belt passing through the measuring roller assembly is proper, the probability of vibration of the material belt at the measuring roller assembly is reduced, and the measuring precision is improved.

Drawings

FIG. 1 is a diagram showing the working state of a material belt length measuring mechanism;

FIG. 2 is an isometric view of a tape length measuring mechanism;

FIG. 3 is a top view of a strip length measuring mechanism;

FIG. 4 is a bottom view of the tape length measuring mechanism;

fig. 5 is a side view of a tape length measuring mechanism.

In the figure, 1-frame, 2-measuring roller assembly, 201-upper measuring roller, 202-lower measuring roller, 3-pinch roller assembly, 301-upper pinch roller, 302-lower pinch roller, 4-side wheel, 5-connecting seat, 6-encoder, 7-parallel line test coupler, 8-vibration damper, 801-screw, 802-fixed block, 803-vibration damper spring, 9-pretension device, 901-screw, 902-pretension spring, 903-nut, 10-scale mark, 11-roller, 12-material belt, 13-chute, 14-slide block.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

Referring to fig. 1 and 2, the precise length measuring mechanism for a material belt provided by the present utility model mainly comprises a frame 1 and a measuring roller assembly 2, wherein the measuring roller assembly 2 is rotatably connected to the frame 1, the measuring roller assembly 2 comprises an upper measuring roller 201 and a lower measuring roller 202, wherein one end of the lower measuring roller 202 is connected with an encoder 6, and the principle of measuring the length of the material belt 12 by the mechanism is that: the material belt 12 passes between the upper measuring roller 201 and the lower measuring roller 202, the lower measuring roller 202 is driven to rotate, and the encoder 6 indirectly calculates the length of the material belt 12 passing through by measuring the rotation number of the lower measuring roller 202.

Furthermore, at least one set of pinch roll assemblies 3 is symmetrically arranged on the stand 1 along both sides of the measuring roll assembly 2, each set of pinch roll assemblies 3 comprising an upper pinch roll 301 and a lower pinch roll 302. In the embodiment, the pinch roll assembly 3 and the measuring roll assembly 2 are parallel to each other and are both rotatably connected to the frame 1. In cooperation with the measuring roller assembly 2, a movable groove is formed in the portion, connected with the upper pinch roller 301, of the frame 1, namely, at two ends of the upper pinch roller 301, and a merchant roller feeding device is arranged in the movable groove. Further, a vibration damper 8 for reducing vibration of the material belt 12 is mounted on the movable groove. The two sides of the frame 1 are provided with connecting seats 5, and the connecting seats 5 are mainly convenient for the connection of the length measuring mechanism and external feeding equipment.

The length measuring mechanism carries out certain limit and guide on the material belt 12 through the pinch roller assemblies 3 arranged on two sides of the measuring roller assembly 2, prevents the material belt 12 from shifting in direction and vibrating in the conveying process, and further influences the accurate measurement of the encoder 6 on the measuring roller. The vibration damper 8 at the end of the upper pinch roll 301 can effectively buffer and absorb the vibration generated when the material strip 12 passes through the pinch roll assembly 3, so as to avoid affecting the measurement of the material strip 12. By this solution, the strip 12 length measuring mechanism can achieve an accurate matching of the movement of the strip 12 with the rotation of the measuring roller, so as to ensure an accurate measurement of the length of the strip 12 by the encoder 6.

Referring to fig. 1 and 5 for specific structure of the vibration damper 8, in this embodiment, the vibration damper 8 includes a screw 801, a vibration damper spring 803, and a fixed block 802, where the fixed block 802 is fixedly connected to an end of the movable groove, the vibration damper spring 803 is located in the movable groove, a screw hole matched with the screw 801 is machined in the fixed block 802, the screw 801 passes through the screw hole in the fixed block 802 and then abuts against one end of the vibration damper spring 803, and the other end of the vibration damper spring 803 is fixedly connected to an end of the upper pinch roller 301. When the screw 801 is rotated, the end of the screw 801 compresses or loosens the pre-tension spring 902, thereby increasing or decreasing the pressure applied to the upper pinch roller 301, and more importantly, when vibration occurs during movement of the strip 12, the force generated by the vibration is transmitted to the vibration-damping spring 803 through the upper pinch roller 301, and the vibration generated by the vibration-damping spring 803 is absorbed, so that the influence on the subsequent measurement of the strip 12 is prevented. The vibration damping device 8 for buffering vibration damping and eliminating vibration influence of the material belt 12 is relatively simple in structure and relatively convenient to assemble and disassemble.

Referring to fig. 1 and 3, in the present embodiment, a parallel line test coupler 7 is connected between the lower measuring roller 202 and the encoder 6. The encoder 6 is connected with the lower measuring roller 202 through the parallel line test coupler 7, so that coaxiality errors generated when the lower measuring roller 202 is installed with the encoder 6 can be eliminated, and meanwhile, by means of the flexible connection mode, eccentricity generated when the pinch roller rotates can be adjusted, so that the encoder 6 can accurately measure and calculate the rotation number of turns of the pinch roller, and the measuring precision of the material belt 12 is improved.

Referring to fig. 3 and 4, as an alternative, the frame 1 is provided with a width measuring assembly for measuring the width of the material belt 12, a chute 13 and a scale mark 10 adapted to the width measuring assembly, the width measuring assembly includes two sets of side wheels 4 and a slider 14, the side wheels 4 are slidably connected to the chute 13 through the slider 14, and the two sets of side wheels 4 of the width measuring assembly are uniformly distributed along two sides of the measuring roller assembly 2. In this scheme, the width measurement assembly can measure the width of the material belt 12, and the material belt 12 area is obtained by combining the length of the material belt 12 measured by the encoder 6. In addition, the side wheel 4 in the width measuring assembly has the functions of limiting and guiding, and whether the moving direction of the material measuring belt 12 is deviated or not can be judged according to whether the position of the side wheel 4 in the chute 13 is changed or not so as to be convenient for timely adjustment.

In addition, in the present embodiment, a pretensioning device 9 is also provided at both ends of the upper measuring roller 201. The pre-tightening device 9 is mainly used for providing clamping force for the measuring roller assembly 2 and the material belt 12 so that the upper measuring roller 201 and the lower measuring roller 202 can rotate along with the movement of the material belt 12. Referring to fig. 5, the pre-tightening device 9 is composed of a pre-tightening spring 902, a screw 901 and a nut 903, wherein the screw 901 is sequentially connected with the nut 903 through the pre-tightening spring 902 through the upper measuring roller 201, the nut 903 is fixedly connected to the frame 1, and the roller 11 is rotatably connected to the center of the upper measuring roller 201. And, the relative distance between the roller 11 at the center of the upper measuring roller 201 and the lower measuring roller 202 can be regulated by the pre-tightening device 9 to regulate and control the tightness degree of the material belt 12 when passing through the measuring roller assembly 2, thereby reducing the probability of vibration of the material belt 12 at the measuring roller assembly 2 and being beneficial to improving the measuring precision of the material belt 12.

The foregoing is merely a preferred embodiment of the utility model, and it is to be understood that the utility model is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims

1. The utility model provides a accurate length measurement mechanism in material area, includes frame (1), be connected with a set of measuring roller subassembly (2) on frame (1), measuring roller subassembly (2) are including last measuring roller (201) and lower measuring roller (202), the one end of measuring roller (202) is connected with encoder (6), its characterized in that down: at least one group of pinch roll assemblies (3) are symmetrically arranged on two sides of the measuring roll assembly (2), each pinch roll assembly (3) comprises an upper pinch roll (301) and a lower pinch roll (302), each pinch roll assembly (3) is parallel to the measuring roll assembly (2) and is rotationally connected with the machine frame (1), a movable groove matched with the upper pinch roll (301) is formed in the machine frame (1), two ends of each upper pinch roll (301) are respectively connected in the corresponding movable groove, and a vibration reduction device (8) for reducing vibration of a material belt is arranged on each movable groove.

2. The precise length measuring mechanism for a material belt according to claim 1, wherein: parallel line test couplings (7) are connected between the lower measuring roller (202) and the encoder (6).

3. The precise length measuring mechanism for a material belt according to claim 1, wherein: the width measuring device is characterized in that a width measuring assembly for measuring the width of a material belt, a sliding groove (13) matched with the width measuring assembly and a scale mark (10) are arranged on the frame (1), the width measuring assembly comprises two groups of side wheels (4) and a sliding block (14), the side wheels (4) are connected onto the sliding groove (13) in a sliding mode through the sliding block (14), and the two groups of side wheels (4) of the width measuring assembly are evenly distributed along two sides of the measuring roller assembly (2).

4. The precise length measuring mechanism for a material belt according to claim 1, wherein: the two ends of the upper measuring roller (201) are provided with pre-tightening devices (9), each pre-tightening device (9) comprises a pre-tightening spring (902), a screw (901) and a nut (903), each screw (901) sequentially penetrates through the corresponding pre-tightening spring (902) to be connected with the corresponding nut (903) through the corresponding upper measuring roller (201), the corresponding nut (903) is fixedly connected to the corresponding frame (1), and a roller (11) is rotatably connected to the center of the corresponding upper measuring roller (201).

5. The precise length measuring mechanism for a material belt according to claim 1, wherein: the vibration damper (8) comprises a screw rod (801), a vibration damper spring (803) and a fixed block (802), wherein the fixed block (802) is fixedly connected to the end part of the movable groove, the vibration damper spring (803) is located in the movable groove, the screw rod (801) passes through the fixed block (802) to be abutted to one end of the vibration damper spring (803), and the other end of the vibration damper spring (803) is fixedly connected with the end part of the upper pinch roll (301).

6. The precise length measuring mechanism for a material belt according to claim 1, wherein: connecting seats (5) are arranged on two sides of the frame (1).