Linear speed detection protection device for grinding machine

Abstract

The utility model discloses a linear speed detection protection device for a grinding machine. According to the technical scheme, the detection device comprises a fixing plate, a detection wheel is installed on the fixing plate, the detection wheel is used for making contact with materials and is driven by the movement of the materials on a conveying belt to rotate, an encoder is connected to the detection wheel, the encoder is electrically connected with a control system of the grinding machine, and an alarm is further electrically connected to the control system. The device has the advantages that the detection wheel is in contact with the materials, the materials can drive the detection wheel to rotate when moving forwards, the encoder can monitor the angular speed of the detection wheel during rotation and send the angular speed to the control system of the grinding machine, and when the conveying belt is blocked, the control system stops the conveying belt in time and gives out an alarm sound to remind workers to deal with the blocked materials; the detection devices are mounted at different positions of the conveyor belt of the same production line, so that the devices can be linked to ensure that the linear speed is kept constant, the blockage position can be positioned more quickly, and workers can check and process the blockage in time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of magnetic sheet processing, especially relates to a linear velocity detection protection device for grinding machine. BACKGROUND

[0002] In the automatic grinding machine production line operation, the control of feeding speed is very important, and too fast linear speed can easily lead to the problem of product quality decline, and too slow linear speed can affect production efficiency.

[0003] The grinding machine production line is particularly prone to blockage. In the prior art, workers usually find the blockage position and remove it, but this requires workers to check the entire production line continuously, which can easily lead to the problem of not being able to find the problem in time or being difficult to determine the blockage position.

[0004] Therefore, a new scheme is needed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses in order to solve the problem that the grinding machine appears and does not check in time manually, and provides a kind of linear velocity detection protection device for grinding machine by detecting linear velocity to find the blockage position in time.

[0006] The utility model provides the technical scheme for solving the above technical problem: a kind of linear velocity detection protection device for grinding machine, including fixed plate, detection wheel is installed on the fixed plate, the detection wheel is used to contact with material and be driven to rotate by the movement of material on conveying belt, encoder is connected on the detection wheel, the encoder is electrically connected with the control system of grinding machine, alarm is also electrically connected on the control system.

[0007] Further, the fixed plate is fixedly provided with a sliding rail, a sliding block is fixedly installed on the bottom of the encoder, the sliding block drives the encoder to slide on the sliding rail, a transmission shaft is fixed on the detection wheel, a sliding groove is formed in the fixed plate, the transmission shaft is rotatably connected with the sliding block by penetrating the sliding groove, and the transmission shaft is fixed with the encoder.

[0008] Further, a support frame is fixedly installed on the sliding block, the encoder is fixedly installed on the support frame, the support frame is provided with a coupler connected with the encoder, and the coupler is fixed with the transmission shaft.

[0009] Further, a driven wheel is further fixedly connected to the transmission shaft on the side of the fixed plate close to the detection wheel.

[0010] Further, an adjusting mechanism for adjusting the position of the detection wheel is further installed on the fixed plate.

[0011] Further, the adjusting mechanism is divided into a fast adjusting mechanism and a fine adjusting mechanism, the fast adjusting mechanism comprises a first lead screw and a first rotating wheel, a sliding groove is formed in the fixed plate, a positioning block is slidably connected in the sliding groove, the first lead screw is threadedly connected with the positioning block, a pull rod fixed with the sliding block is also slidably connected to the positioning block, and a limiting nut threadedly connected with the upper end of the pull rod abuts against the upper end face of the positioning block.

[0012] Further, the pull rod is sleeved with springs abutting against the sliding block and the positioning block at two ends.

[0013] Further, the fine adjusting mechanism comprises a second lead screw and a second rotating wheel, a nut block threadedly connected with the second lead screw is fixedly connected to the fixed plate, the second lead screw is rotatably connected with an adjusting wheel on the side of the fixed plate close to the detection wheel, and the adjusting wheel and the driven wheel are both provided with inclined surfaces for abutting against each other.

[0014] Compared with the prior art, the adjusting mechanism has the following advantages:

[0015] The detection wheel is in contact with the material, and the detection wheel is driven to rotate when the material advances, and the encoder monitors the angular velocity of the detection wheel when rotating and sends it to the control system of the grinding machine, when the material is blocked on the conveying belt, the control system stops the conveying belt in time and sends out an alarm sound to remind the worker to handle the blocking, when the linear speed is too fast, the speed of the conveying belt can also be reduced, so that the linear speed can be kept uniform, by installing detection devices at different positions of the conveying belt on the same production line, not only the linkage between the devices can ensure that the linear speed is kept uniform, but also the position where the blocking occurs can be located more quickly, so that the worker can check and handle it in time. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure of the utility model is shown Figure One ;

[0017] Figure 2 The structure of the utility model is shown Figure Two ;

[0018] Figure 3 The structure of the utility model is shown Figure Three .

[0019] BRIEF DESCRIPTION OF DRAWINGS: 1, fixed plate; 11, sliding rail; 12, sliding groove; 13, adjusting mechanism; 131, first lead screw; 132, first rotating wheel; 133, pull rod; 134, limiting nut; 135, spring; 136, second lead screw; 137, second rotating wheel; 138, nut block; 139, adjusting wheel; 14, positioning block; 2, detection wheel; 21, transmission shaft; 22, driven wheel; 3, encoder; 31, sliding block; 32, support frame; 33, coupler. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1 to 3 As shown, a linear speed detection and protection device for a grinding machine includes a fixed plate 1, on which a detection wheel 2 is mounted. The detection wheel 2 is used to contact the material and is driven to rotate by the movement of the material on the conveyor belt. An encoder 3 is connected to the detection wheel 2 and is electrically connected to the control system of the grinding machine. The fixed plate 1 is used to mount the detection device on the grinding machine. The material is driven forward by the conveyor belt of the grinding machine. During the forward movement, the detection wheel 2 contacts the material, causing it to rotate. The encoder 3 monitors the angular velocity of the detection wheel 2 during this process and sends it to the control system of the grinding machine. When material blockage occurs on the conveyor belt, the detection wheel 2 will stop rotating because the material cannot continue to move forward. At this time, the encoder 3 will send a signal to the control system of the grinding machine, and the control system will control the conveyor belt to stop. An alarm is also electrically connected to the control system, and the control system will simultaneously control the alarm to sound an alarm to remind the worker to deal with the blockage problem. When the linear speed (i.e., the speed of the conveyor belt) is too fast, the encoder 3 will also send a signal to the control system, thereby causing the conveyor belt to slow down, thus ensuring that the linear speed of the entire production line is maintained within a certain range to ensure the steady progress of the entire production process.

[0022] A slide rail 11 is fixedly mounted on the fixed plate 1. A slider 31 is fixedly connected to the bottom of the encoder 3. The slider 31 drives the encoder 3 to slide on the slide rail 11. A support frame 32 is fixedly mounted on the slider 31. The encoder 3 is mounted on the support frame 32. A drive shaft 21 is fixedly connected to the detection wheel 2. A groove 12 is provided on the fixed plate 1. The drive shaft 21 slides in the groove 12. This arrangement allows the positions of the encoder 3 and the detection wheel 2 on the grinding machine to be further determined by adjustment, thereby ensuring the accuracy of the entire device. A coupler 33 connected to the encoder 3 is installed in the support frame 32. The coupler 33 is used to fix the shaft of the drive shaft 21 and the shaft of the encoder 3. The coupler 33 can not only connect the shaft of the drive shaft 21 and the shaft of the encoder 3, but also make the encoder 3 more accurate and stable in monitoring the angular velocity of the detection wheel 2.

[0023] The fixed plate 1 is further provided with an adjusting mechanism 13 for adjusting the position of the detection wheel 2, and the adjusting mechanism 13 adjusts the position of the detection wheel 2 so that the detection device can detect materials of different sizes, thereby expanding the use range of the detection device. The adjusting mechanism 13 comprises a first screw rod 131 and a first rotating wheel 132. A sliding groove 12 is formed in the fixed plate 1, and a positioning block 14 is slidably arranged in the sliding groove 12. The first screw rod 131 is threadedly connected with the positioning block 14. A pull rod 133 fixed with the sliding block 31 is further fixed on the positioning block 14. The first rotating wheel 132 is rotated to drive the first screw rod 131 to rotate. When the first rotating wheel 132 is rotated, the positioning block 14 can move along the axial direction of the first screw rod 131. Then the positioning block 14 drives the pull rod 133 to apply a force to the sliding block 31, so as to realize the effect of adjusting the position of the moving encoder 3 and the transmission shaft 21. The upper end of the pull rod 133 is threadedly connected with a limiting nut 134 abutting against the upper end surface of the positioning block 14. The limiting nut 134 is used to limit the downward sliding of the sliding block 31, thereby maintaining the height position of the sliding block 31 and ensuring that the detection wheel 2 is in a proper position. A spring 135 is sleeved on the pull rod 133 and abuts against the sliding block 31 and the positioning block 14 at both ends. The spring 135 can apply a weak force to the sliding block 31, and the force is transmitted to the detection wheel 2 through the transmission shaft 21, so that the distance between the detection wheel 2 and the conveying belt can be slightly smaller than the height of the material. Therefore, when the material passes below the detection wheel 2, the contact between the detection wheel 2 and the material can be ensured, and the generation of false detection due to broken contact can be avoided to a certain extent.

[0024] The adjusting mechanism 13 further comprises a second screw rod 136 and a second rotating wheel 137. A nut block 138 threadedly connected with the second screw rod 136 is fixedly connected to the fixed plate 1. The second screw rod 136 is rotatably arranged on the side of the fixed plate 1 close to the detection wheel 2. A driven wheel 22 is fixedly connected to the transmission shaft 21 by a key. The adjusting wheel 139 and the driven wheel 22 are both provided with inclined surfaces for abutting against each other. The driven wheel 22 is synchronously rotated with the detection wheel 2 during use. The second screw rod 137 drives the adjusting wheel 139 to move horizontally by rotating the second rotating wheel 136. At this time, the adjusting wheel 139 can abut against the inclined surface of the driven wheel 22 by using the inclined surface of the adjusting wheel 139, thereby driving the driven wheel 22 to move slightly in the vertical direction, so as to realize the effect of fine adjustment of the detection wheel 2. Since the adjusting wheel 139 is rotatably connected with the second screw rod 136, the adjusting wheel 139 can also rotate with the driven wheel 22 during use, thereby avoiding the phenomenon that the position is deviated due to rotation of the screw rod. The adjusting wheel 139 has a positioning effect to a certain extent.

[0025] Working process: first rotate the first runner 132, the positioning block 14 sliding drive pull rod 133, in turn by pull rod 133 drive sliding block 31 sliding, in turn adjust the position of transmission shaft 21 and encoder 3, so as to adjust the height position of detection wheel 2, until the surface of the material is contacted, at this time the spring 135 will give detection wheel 2 a weak pressure, make it more close to the surface of the material, when the work is finished and the material is replaced, according to the size of the material, if the size of the new material is close to the size of the original material, then the second runner 137 can be rotated, the inclined surface between the adjusting wheel 139 and the driven wheel 22 is abutted, in turn, the driven wheel 22 drives the transmission shaft 21 upwards, so that the height adjustment of small amplitude is realized, if the size of the new material is greatly different from the size of the original material, then only the first runner 132 is rotated, the height adjustment of large amplitude can be realized.

[0026] The protection scope of the utility model includes but is not limited to the above implementation, the protection scope of the utility model is subject to the claims, any replacement, deformation, improvement of the technical personnel of the field of the present technology easily thought of to the present technology falls into the protection scope of the utility model.

Claims

1. A linear speed detection protection device for a grinding machine, comprising a fixed plate (1), characterized in that: The fixed plate (1) is provided with a detection wheel (2), which is used to contact with the material and is driven to rotate by the movement of the material on the conveying belt, and an encoder (3) is connected to the detection wheel (2), the encoder (3) is electrically connected with the control system of the grinding machine, and an alarm is also electrically connected with the control system.

2. A line speed detection protection device for an abrasive machine as claimed in claim 1, wherein: The fixed plate (1) is provided with a sliding rail (11), and the bottom of the encoder (3) is fixedly provided with a sliding block (31), the sliding block (31) drives the encoder (3) to slide on the sliding rail (11), the detection wheel (2) is fixedly provided with a transmission shaft (21), the fixed plate (1) is provided with a sliding groove (12), the transmission shaft (21) is rotatably connected with the sliding block (31) through the sliding groove (12), and the transmission shaft (21) is fixedly connected with the encoder (3).

3. A line speed detection protection device for an abrasive machine as claimed in claim 2, wherein: The sliding block (31) is fixedly provided with a support frame (32), and the encoder (3) is fixedly installed on the support frame (32), the support frame (32) is provided with a coupler (33) connected with the encoder (3), and the coupler (33) is used for fixing the shaft of the transmission shaft (21) and the encoder (3).

4. A line speed detection protection device for an abrasive machine as claimed in claim 2, wherein: The fixed plate (1) is also provided with an adjusting mechanism for adjusting the position of the detection wheel (2).

5. A line speed detection protection device for an abrasive machine as claimed in claim 4, wherein: The adjusting mechanism comprises a first screw rod (131) and a first rotating wheel (132), the fixed plate (1) is provided with a sliding groove (12), the sliding groove (12) is slidably connected with a positioning block (14), the first screw rod (131) is threadedly connected with the positioning block (14), and the positioning block (14) is further slidably connected with a pull rod (133) fixed with the sliding block (31), the upper end of the pull rod (133) is threadedly connected with a limiting nut (134) abutting against the upper end surface of the positioning block (14).

6. A line speed detection protection device for an abrasive machine as claimed in claim 5, wherein: The pull rod (133) is provided with a spring (135) abutting against the sliding block (31) and the positioning block (14) at both ends.

7. A line speed detection protection device for an abrasive machine as defined in claim 4, wherein: The adjusting mechanism further comprises a second screw rod (136) and a second rotating wheel (137), the fixed plate (1) is fixedly connected with a nut block (138) threadedly connected with the second screw rod (136), the second screw rod (136) is rotatably connected with an adjusting wheel (139) on the side of the fixed plate (1) close to the detection wheel (2), the transmission shaft (21) is further fixedly connected with a driven wheel (22) on the side of the fixed plate (1) close to the detection wheel (2) through a key, and the adjusting wheel (139) and the driven wheel (22) are both provided with inclined surfaces for abutting against each other.

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