Wire jumping detection device for wire wheel of window glass lifter

Abstract

The utility model relates to the technical field of automobile window lifting, in particular to a wire jumping detection device for a wire wheel of a window lifting glass lifter, which comprises a support (1). The support (1) is provided with a trigger structure and a detection structure. A wire wheel (2) is arranged on one side of the trigger structure; a steel wire rope is arranged on the wire wheel (2); the trigger structure abuts against the steel wire rope. When the steel wire rope jumps on the wire wheel, the trigger structure moves, so that the detection structure can detect the state of the trigger structure and send an alarm signal to the PLC module; therefore, defective products can be prevented from flowing to the next station, the product yield is effectively improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive window technology, specifically to a device for detecting thread skipping in the screw wheel of a window regulator. Background Technology

[0002] During the production of window regulators, the regulators are equipped with threaded wheels on which steel wire ropes are wound. During processing, a turntable is used to accurately wind the steel wire ropes into the threaded grooves of the threaded wheels. However, in actual production, the steel wire ropes may skip threads and come off the threaded grooves of the threaded wheels. If these defective products are not detected in time and flow into the next process, they will produce defective products, affecting the product qualification rate. Rework will lead to a significant increase in production costs.

[0003] The applicant discovered through a search that Chinese patent document with publication number 213570901U, published on June 29, 2021, discloses an anti-slip wire device and an anti-slip wire rotating guide. The anti-slip wire device includes a first limiting mechanism, a connecting mechanism, and a second limiting mechanism. The first limiting mechanism and the second limiting mechanism are respectively disposed at both ends of the connecting mechanism. The first limiting mechanism, the connecting mechanism, and the second limiting mechanism enclose a limiting space. The first limiting mechanism can be fixedly connected to the rotating guide wire, and at least the portion of the rotating guide wire with the wire guiding structure can be disposed within the limiting space. This device also fails to solve the aforementioned technical problem.

[0004] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the existing wire skipping detection structure. Utility Model Content

[0005] The purpose of this invention is to provide a device for detecting thread skipping of the screw wheel in a window regulator that can detect such skipping in real time.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a device for detecting wire skipping of a window regulator screw wheel, comprising a bracket; a triggering structure and a detection structure are respectively provided on the bracket; a screw wheel is provided on one side of the triggering structure; and a steel wire rope is provided on the screw wheel.

[0007] The triggering structure includes a slider and a trigger plate; one end of the slider abuts against a steel wire rope; the other end of the slider abuts against the trigger plate; the trigger plate is located on one side of the detection structure.

[0008] The trigger plate includes an upper baffle and a lower baffle; the lower baffle is connected to the end of the upper baffle; the side of the bracket is provided with a mounting groove; the top of the bracket is provided with a sliding groove; the lower baffle is located on one side of the bracket; the upper baffle is located in the mounting groove, and the end of the upper baffle is located in the sliding groove.

[0009] The bracket has a movable groove on its side; the movable groove is located at the bottom of the mounting groove; the slider is located in the movable groove; the end of the slider abuts against the lower baffle.

[0010] The detection structure includes a displacement sensor; the displacement sensor is connected to the side of the bracket; the displacement sensor includes a detection probe; the detection probe extends into the groove and abuts against the upper baffle.

[0011] A fixing plate is provided on the side of the bracket away from the displacement sensor; both the fixing plate and the upper baffle are provided with limiting holes; a spring is provided between the fixing plate and the upper baffle; the two ends of the spring are respectively connected to the limiting holes.

[0012] The lead wheel is provided with a threaded groove; the wire rope is installed in the threaded groove; the end of the slider near the lead wheel is provided with a limiting rod; the limiting rod presses the wire rope tightly in the threaded groove; the end of the slider is provided with a top block; the top block abuts against the side of the lower baffle.

[0013] A connecting section is provided between the upper baffle and the lower baffle; a connecting shaft is provided on the side of the bracket; a shaft hole is provided on the connecting section; and the connecting shaft is installed in the shaft hole.

[0014] A pressure plate is provided on one side of the fixing plate; the fixing plate is connected to the pressure plate.

[0015] The displacement sensor is connected to a PLC module.

[0016] The beneficial effects of this application are as follows:

[0017] The slider of this application is equipped with a limiting rod; when the wire rope is wound in the threaded groove of the wire wheel, the limiting rod presses the wire rope tightly in the threaded groove; when a wire rope skips, the limiting rod is pushed towards the bracket; the limiting rod drives the slider to slide along the moving groove; thereby causing the top block of the slider to push the lower baffle; the lower baffle drives the connecting section and the upper baffle to rotate; the upper baffle moves along the sliding groove towards the fixed plate and compresses the spring; thereby causing the side of the upper baffle to separate from the detection probe of the displacement sensor; at this time, the displacement sensor sends a control signal to the PI C module; the PI C module controls the wire wheel to stop feeding; at this time, the wire wheel stops at the current station and rewinds; this device can detect wire rope skipping in real time when the wire wheel is winding the wire rope and can send an alarm signal to the PI C module, thereby preventing defective products from flowing to the next station, effectively improving product yield and reducing production costs. Attached Figure Description

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the screw thread skipping detection device for the window regulator.

[0020] Figure 2 This is a schematic diagram of the back structure of the screw thread skipping detection device for the window regulator.

[0021] Figure 3 This is a schematic diagram of the top structure of the screw wheel skipping detection device for the window regulator.

[0022] The markings in the above figures are all:

[0023] The diagram is marked as follows:

[0024] 1. Bracket; 101. Mounting slot; 102. Slide groove; 103. Connecting shaft.

[0025] 2. Thread wheel, 201. Thread groove,

[0026] 3. Slider, 301. Limiting rod, 302. Top block.

[0027] 4. Trigger plate, 401. Upper baffle, 402. Lower baffle, 403. Connecting section.

[0028] 5. Moving slot,

[0029] 6. Displacement sensor, 601. Detection probe.

[0030] 7. Fixing plate, 701. Limiting hole, 702. Spring.

[0031] 8. Pressure plate. Detailed Implementation

[0032] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation.

[0033] Figure 1 The window regulator pulley skipping detection device shown includes a bracket 1; the bracket 1 is equipped with a triggering structure and a detection structure; a pulley 2 is provided on one side of the triggering structure; and a steel wire rope is provided on the pulley 2.

[0034] The triggering structure comes into contact with the wire rope; when the wire rope skips on the spool 2, the triggering structure moves, thereby the detection structure can detect the state of the triggering structure and send an alarm signal to the PLC module; thus, defective products can be prevented from flowing to the next station, effectively improving the product yield and reducing production costs.

[0035] The triggering structure includes a slider 3 and a trigger plate 4; one end of the slider 3 abuts against the wire rope; the other end of the slider 3 abuts against the trigger plate 4; the trigger plate 4 is located on one side of the detection structure.

[0036] The slider 3 is a square block; when the wire rope skips, the slider 3 will slide on the bracket 1, thereby pressing against one end of the trigger plate 4, causing the trigger plate 4 to trigger the detection structure alarm.

[0037] The trigger plate 4 includes an upper baffle 401 and a lower baffle 402; the lower baffle 402 is connected to the end of the upper baffle 401; the side of the bracket 1 is provided with a mounting groove 101; the top of the bracket 1 is provided with a sliding groove 102; the lower baffle 402 is located on one side of the bracket 1; the upper baffle 401 is located in the mounting groove 101, and the end of the upper baffle 401 is located in the sliding groove 102.

[0038] The trigger plate 4 is an S-shaped plate; the upper baffle 401, the lower baffle 402 and the connecting section 403 are an integral structure; the mounting groove 101 and the sliding groove 102 are both through grooves; the sliding groove 102 is connected to the mounting groove 101; the upper baffle 401 extends from the mounting groove 101 into the sliding groove 102; the end of the upper baffle 401 can move horizontally in the sliding groove 102.

[0039] The side of the bracket 1 is provided with a movable groove 5; the movable groove 5 is located at the bottom of the mounting groove 101; the slider 3 is located in the movable groove 5; the end of the slider 3 abuts against the lower baffle 402.

[0040] The movable groove 5 is located on the side of the support 1 and at the bottom of the support 1; the movable groove 5 is a square groove; the slider 3 is a square block; the slider 3 can move horizontally along the movable groove 5.

[0041] The detection structure includes a displacement sensor 6; the displacement sensor 6 is connected to the side of the bracket 1; the displacement sensor 6 includes a detection probe 601; the detection probe 601 extends into the slide groove 102 and abuts against the upper baffle 401.

[0042] The detection probe 601 of the displacement sensor 6 can emit laser light; when the wire rope does not skip on the sheave 2, the upper baffle 401 abuts against the detection probe 601, and the displacement sensor 6 is in a silent state; when the wire rope skips on the sheave 2, the upper baffle 401 separates from the detection probe 601, and the displacement sensor 6 sends an alarm to the PLC module.

[0043] A fixing plate 7 is provided on the side of the bracket 1 away from the displacement sensor 6; both the fixing plate 7 and the upper baffle 401 are provided with limiting holes 701; a spring 702 is provided between the fixing plate 7 and the upper baffle 401; the two ends of the spring 702 are respectively connected to the limiting holes 701.

[0044] The fixing plate 7 is a square plate and is an integral structure with the bracket 1. When the wire rope skips on the wire wheel 2, the end of the upper baffle 401 moves toward the fixing plate 7, thereby compressing the spring 702. When the device is removed from the side of the wire wheel 2 and the wire rope is cleaned, the compression spring 702 is released, pushing the upper baffle 401 back to its original position.

[0045] The lead wheel 2 is provided with a threaded groove 201; the wire rope is installed in the threaded groove 201; the slider 3 is provided with a limiting rod 301 at the end near the lead wheel 2; the limiting rod 301 presses the wire rope tightly in the threaded groove 201; the end of the slider 3 is provided with a top block 302; the top block 302 abuts against the side of the lower baffle 402.

[0046] The limiting rod 301 can simultaneously block all the thread grooves 201 of the screw wheel 2, thereby detecting whether the wire rope in all the thread grooves 201 has skipped wires; at the same time, when the slider 3 slides towards the lower baffle 402, the limiting rod 301 can be engaged at one end of the moving groove 5 to prevent the slider 3 from disengaging from the moving groove 5.

[0047] A connecting section 403 is provided between the upper baffle 401 and the lower baffle 402; a connecting shaft 103 is provided on the side of the bracket 1; a shaft hole is provided on the connecting section 403; and the connecting shaft 103 is installed in the shaft hole.

[0048] The connecting section 403 is located between the upper baffle 401 and the lower baffle 402, and is an integral structure with the upper baffle 401 and the lower baffle 402; the connecting section 403 is hinged to the bracket 1; thereby enabling the trigger plate 4 to rotate on the bracket 1.

[0049] A pressure plate 8 is provided on one side of the fixing plate 7; the fixing plate 7 is connected to the pressure plate 8.

[0050] The pressure plate 8 is connected to the processing machine and is located on top of the wire wheel 2; the pressure plate 8 is bolted to the fixing plate 7, thereby enabling the bracket 1 to move flexibly; making it convenient for the bracket 1 to move closer to or further away from the wire wheel 2 when the wire is wound.

[0051] Displacement sensor 6 is connected to a PLC module.

[0052] A PLC (Programmable Logic Controller) is a digital electronic system designed for industrial applications. Displacement sensor 6 sends a control signal to the PLC module; the PLC module controls the interruption of the feed of the lead wheel 2; at this time, the lead wheel 2 stops at the current station and rewinds the wire.

[0053] The specific workflow of this utility model is as follows:

[0054] When a wire rope skips, the limiting rod 301 is pushed towards the bracket 1; the limiting rod 301 drives the slider 3 to slide along the moving groove 5; thus, the top block 302 of the slider 3 pushes the lower baffle 402; the lower baffle 402 drives the connecting section 403 and the upper baffle 401 to rotate; the upper baffle 401 moves along the sliding groove 102 towards the fixed plate 7 and compresses the spring 702; thus, the side of the upper baffle 401 separates from the detection probe 601 of the displacement sensor 6; at this time, the displacement sensor 6 sends a control signal to the PI C module; the PI C module controls the feeding of the wire wheel 2 to stop; at this time, the wire wheel 2 stays at the current station and is wound again.

[0055] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A device for detecting skipped threads on the screw wheel of a window regulator, characterized in that: Includes a bracket (1); the bracket (1) is provided with a triggering structure and a detection structure respectively; a wire wheel (2) is provided on one side of the triggering structure; a wire rope is provided on the wire wheel (2); The triggering structure includes a slider (3) and a trigger plate (4); one end of the slider (3) abuts against the wire rope; the other end of the slider (3) abuts against the trigger plate (4); the trigger plate (4) is located on one side of the detection structure; The trigger plate (4) includes an upper baffle (401) and a lower baffle (402); the lower baffle (402) is connected to the end of the upper baffle (401); the side of the bracket (1) is provided with a mounting groove (101); the top of the bracket (1) is provided with a sliding groove (102); the lower baffle (402) is provided on one side of the bracket (1); the upper baffle (401) is provided in the mounting groove (101), and the end of the upper baffle (401) is provided in the sliding groove (102); The detection structure includes a displacement sensor (6); the displacement sensor (6) is connected to the side of the bracket (1); the displacement sensor (6) includes a detection probe (601); the detection probe (601) extends into the slide groove (102) and abuts against the upper baffle (401).

2. The device for detecting skipped threads on the screw wheel of a window regulator according to claim 1, characterized in that: The bracket (1) has a movable groove (5) on its side; the movable groove (5) is located at the bottom of the mounting groove (101); the slider (3) is located in the movable groove (5); the end of the slider (3) abuts against the lower baffle (402).

3. A device for detecting skipped threads on the screw wheel of a window regulator according to claim 2, characterized in that: The bracket (1) has a fixing plate (7) on the side away from the displacement sensor (6); both the fixing plate (7) and the upper baffle (401) have limiting holes (701); a spring (702) is provided between the fixing plate (7) and the upper baffle (401); the two ends of the spring (702) are respectively connected to the limiting holes (701).

4. A device for detecting skipped threads on the screw wheel of a window regulator according to claim 3, characterized in that: The lead wheel (2) is provided with a threaded groove (201); the wire rope is installed in the threaded groove (201); the slider (3) is provided with a limiting rod (301) at the end near the lead wheel (2); the limiting rod (301) presses the wire rope into the threaded groove (201); the end of the slider (3) is provided with a top block (302); the top block (302) abuts against the side of the lower baffle (402).

5. A device for detecting skipped threads on the screw wheel of a window regulator according to any one of claims 3-4, characterized in that: A connecting section (403) is provided between the upper baffle (401) and the lower baffle (402); a connecting shaft (103) is provided on the side of the bracket (1); a shaft hole is provided on the connecting section (403); the connecting shaft (103) is installed in the shaft hole.

6. A device for detecting skipped threads on the screw wheel of a window regulator according to claim 5, characterized in that: A pressure plate (8) is provided on one side of the fixing plate (7); the fixing plate (7) is connected to the pressure plate (8).

7. A device for detecting skipped threads on the screw wheel of a window regulator according to claim 6, characterized in that: The displacement sensor (6) is connected to a PLC module.

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