Cloth thickness automatic detection mechanism for cloth spreading machine

Abstract

The utility model discloses a cloth thickness automatic detection mechanism for cloth pulling machine, including two symmetries wallboard, the upper portion fixed connection of two wallboards has the top chord, the lower portion fixed connection of two wallboards has the lower chord, the bottom fixed connection of lower chord has the pressboard of Z type, the below of pressboard is equipped with the bearing station, the middle part fixed of pressboard has the mounting block, the fixed sleeve of mounting block has, the screw rod of screw thread connection has in the sleeve, the lower end of screw rod is connected with the first distance sensor downward, the bottom surface of first distance sensor is with the bottom surface of pressboard, is equipped with the mounting groove on the bearing station, is installed with the second distance sensor upward in the mounting groove, and second distance sensor is staggered with first distance sensor, and second distance sensor is towards the bottom surface of pressboard. Screw the screw rod, can adjust the interval of first distance sensor and bearing station, until first distance sensor and the lowest surface of pressboard are level, to measure the thickness of cloth.

Description

Technical Field

[0001] This utility model relates to the field of fabric spreading machine technology, specifically to an automatic fabric thickness detection mechanism for fabric spreading machines. Background Technology

[0002] Fabric spreading machines are mainly used in the pre-process of garment or textile production. They are responsible for unrolling rolls of fabric and laying them layer by layer on a cutting table for easy subsequent cutting. During fabric spreading, the fabric is first clamped by a clamping mechanism, then gripped by fabric spreading jaws. By driving the jaws to move, the fabric is spread. After spreading, the fabric is cut by a cutting mechanism. After cutting, the fabric is pressed tightly by a pressure plate. When the fabric reaches a certain thickness, it is then removed.

[0003] Currently, when measuring the thickness of cut fabric, it is generally done by setting a ruler or by visual inspection, which results in inconsistent thickness of the fabric stacked each time, making the measurement inaccurate. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic fabric thickness detection mechanism for fabric spreading machines, which solves the problem of inconsistent fabric thickness after each stacking of fabric after cutting.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An automatic fabric thickness detection mechanism for a fabric spreading machine includes two symmetrical wall panels. An upper beam is fixedly connected to the upper part between the two wall panels, and a lower beam is fixedly connected to the lower part between the two wall panels. A Z-shaped pressure plate is fixedly connected to the bottom of the lower beam. A support platform is provided below the pressure plate. An installation block is fixed in the middle of the pressure plate. A sleeve is fixed inside the installation block. A screw is threaded into the sleeve. A downward-facing first distance sensor is connected to the lower end of the screw. The bottom surface of the first distance sensor is flush with the bottom surface of the pressure plate. An installation groove is provided on the support platform. An upward-facing second distance sensor is installed in the installation groove. The second distance sensor is offset from the first distance sensor and faces the bottom surface of the pressure plate.

[0007] Preferably, a first cylinder is installed on the upper beam, and an upper clamping plate is connected to the telescopic end of the first cylinder. A lower clamping plate matching the upper clamping plate is connected to the top of the lower beam. The upper clamping plate and the lower clamping plate are arranged opposite to each other, and the mounting block is located on one side of the lower clamping plate.

[0008] In the above technical solution, after the pulled-out fabric is fed between the upper and lower clamping plates, the first cylinder is controlled to extend, causing the upper clamping plate to descend, thereby pressing the fabric tightly onto the lower clamping plate for subsequent cutting.

[0009] Preferably, a strip-shaped cover is fixedly connected to one side between the two wall panels, and the cover is located above the pressure plate.

[0010] The above technical solution involves installing a linear displacement mechanism inside the housing, and installing a cutting mechanism on the linear displacement mechanism. The linear displacement mechanism drives the cutting mechanism to move laterally, thereby cutting the pulled-out fabric.

[0011] Preferably, uprights are also installed on the two wall panels, the lower end of which is connected to the side of the support platform. A top beam is connected to the two uprights, and a second cylinder is installed on the top beam. The telescopic end of the second cylinder is connected to the top beam.

[0012] The above technical solution, by controlling the extension of the second cylinder, can drive the upper beam to descend, thereby driving the pressure plate to descend, so as to press the cut fabric tightly through the pressure plate.

[0013] Preferably, the outer sidewall of the wall panel is fixedly connected to four shafts arranged in a rectangular pattern, and rollers are rotatably connected to the shafts. The opposite surfaces of the two upright panels are provided with guide rails, and the four rollers at the same end are arranged in pairs and slidably connected to both sides of the guide rails.

[0014] In the above technical solution, the wall panel slides on both sides of the guide rail via rollers during the lifting and lowering process, which makes the movement of the wall panel more balanced and smooth.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] Tightening the screw adjusts the distance between the first distance sensor and the support platform until the first distance sensor is level with the lowest surface of the pressure plate. During debugging, the second distance sensor also senses its distance from the lowest surface of the pressure plate. When the distance between the first distance sensor and the support platform is equal to the distance between the second distance sensor and the lowest surface of the pressure plate, it indicates that the first distance sensor is level with the lowest surface of the pressure plate, thus improving measurement accuracy.

[0017] After the fabric is cut, it falls onto the support platform. The lowest end of the pressure plate presses the fabric onto the platform. A first distance sensor detects the distance between the fabric and the support platform, thus obtaining a thickness value. A second distance sensor also detects the distance between the fabric and the lowest surface of the pressure plate, obtaining another thickness value. The controller then calculates the average of the two thickness values, thereby improving the accuracy of thickness measurement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the present invention;

[0019] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0020] Figure 3 This is a partial schematic diagram of the present invention;

[0021] Figure 4 An exploded view of the action of pressing the fabric together;

[0022] Figure 5 for Figure 4 A magnified view of a portion of the image;

[0023] In the diagram: 1-wall panel, 2-upper beam, 3-lower beam, 4-pressure plate, 5-bearing platform, 6-mounting block, 7-sleeve, 8-screw, 9-first distance sensor, 10-mounting groove, 11-second distance sensor, 12-first cylinder, 13-upper clamping plate, 14-lower clamping plate, 15-cover, 16-vertical plate, 17-top beam, 18-second cylinder, 19-shaft, 20-roller, 21-guide rail, 22-cutting mechanism, 23-fabric, 24-lifting beam. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figures 1-5 An automatic fabric thickness detection mechanism for a fabric spreading machine includes two symmetrical wall panels 1. An upper beam 2 is fixedly connected to the upper part between the two wall panels 1, and a lower beam 3 is fixedly connected to the lower part between the two wall panels 1. A Z-shaped pressure plate 4 is fixedly connected to the bottom of the lower beam 3. A support platform 5 is provided below the pressure plate 4. An installation block 6 is fixed in the middle of the pressure plate 4. A sleeve 7 is fixed inside the installation block 6. A screw 8 is threadedly connected inside the sleeve 7. A downward-facing first distance sensor 9 is connected to the lower end of the screw 8. The bottom surface of the first distance sensor 9 is flush with the bottom surface of the pressure plate 4. An installation groove 10 is provided on the support platform 5. An upward-facing second distance sensor 11 is installed in the installation groove 10. The second distance sensor 11 is offset from the first distance sensor 9 and faces the bottom surface of the pressure plate 4.

[0027] Both the first and second distance sensors are Time-of-Flight (TOF) infrared sensors. They emit laser pulses, receive the reflected light, and record the time difference to calculate the corresponding distance. Furthermore, both the first and second distance sensors are connected to the control center of the fabric spreading machine. The control center calculates the average of two thickness values ​​from the first and second distance sensors.

[0028] Tightening screw 8 adjusts the distance between the first distance sensor 9 and the support platform 5 until the first distance sensor is flush with the lowest surface of the pressure plate. During debugging, the second distance sensor also senses its distance from the lowest surface of the pressure plate. When the distance between the first distance sensor and the support platform is equal to the distance between the second distance sensor and the lowest surface of the pressure plate, it indicates that the first distance sensor is flush with the lowest surface of the pressure plate, thus improving measurement accuracy. After the fabric is cut, it falls onto the support platform and is pressed down by the lowest end of the pressure plate. The first distance sensor senses its distance from the support platform, thus obtaining a thickness value for the fabric. Additionally, the second distance sensor senses its distance from the lowest surface of the pressure plate, obtaining another thickness value. The controller then calculates the average of the two thickness values, thereby improving the accuracy of thickness measurement.

[0029] A first cylinder 12 is installed on the upper beam 2. The telescopic end of the first cylinder 12 is connected to a lifting beam 24. An upper clamping plate 13 is connected to the lifting beam 24. A lower clamping plate 14 matching the upper clamping plate is connected to the top of the lower beam 3. The upper clamping plate 13 and the lower clamping plate 14 are arranged opposite to each other. The mounting block 6 is located on one side of the lower clamping plate 14. When the pulled-out fabric is fed between the upper clamping plate 13 and the lower clamping plate 14, the first cylinder 12 is controlled to extend, driving the upper clamping plate 13 to descend, thereby pressing the fabric tightly onto the lower clamping plate 14 for subsequent cutting.

[0030] A strip-shaped cover 15 is fixedly connected to one side between the two wall panels 1, and the cover 15 is located above the pressure plate 4. A linear displacement mechanism is installed inside the cover. The linear displacement mechanism is a screw drive mechanism installed inside the cover. A cutting mechanism is driven by the screw drive mechanism. The cutting mechanism is driven to move laterally through the screw drive mechanism, thereby cutting the pulled-out fabric.

[0031] Upright plates 16 are also installed on the two wall panels 1. The lower ends of the upright plates 16 are connected to the sides of the support platform 5. Top beams 17 are connected to the two upright plates 16. Second cylinders 18 are installed on the top beams 17. The telescopic ends of the second cylinders 18 are connected to the upper beam 2. There are two second cylinders 18. By controlling the extension of the second cylinders 18, the upper beam 2 can be driven to descend, thereby driving the pressure plate 4 to descend, so that the cut fabric is pressed onto the support platform 5 by the pressure plate 4.

[0032] The working principle of this embodiment is as follows: the fabric is pulled by the fabric grippers, allowing it to pass between the upper clamping plate 13 and the lower clamping plate 14. After being pulled to a certain length, the fabric is cut by the cutting mechanism. The cut fabric slides down onto the pressure plate 4. Then, the second cylinder 18 retracts, causing the pressure plate 4 to rise, allowing the cut fabric to slide onto the support platform 5. Next, the second cylinder 18 is extended, causing the pressure plate 4 to descend, pressing the cut fabric tightly onto the support platform 5 (e.g., ...). Figure 4As shown in the figure), a new round of fabric pulling and cutting will then be carried out. At this time, the first distance sensor and the second distance sensor will work to measure the thickness of the fabric until the thickness of the fabric on the support platform reaches the set value.

[0033] The fabric-pulling gripper described in this embodiment is a plurality of parallel finger cylinders arranged side by side, which are installed on the fabric-pulling machine. This embodiment will not describe it in detail.

[0034] Example 2

[0035] Based on Embodiment 1, four rectangularly arranged shafts 19 are fixedly connected to the outer sidewall of the wall panel 1. Rollers 20 are rotatably connected to the shafts 19. Guide rails 21 are provided on the opposite surfaces of the two upright panels 16. The four rollers 20 at the same end are arranged in pairs and slidably connected to both sides of the guide rails 21. During the lifting and lowering process, the wall panel slides on both sides of the guide rails through the rollers, which makes the movement of the wall panel more balanced and smooth.

[0036] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic fabric thickness detection mechanism for a fabric spreading machine, characterized in that: It includes two symmetrical wall panels (1), with an upper beam (2) fixedly connected to the upper part between the two wall panels (1) and a lower beam (3) fixedly connected to the lower part between the two wall panels (1). A Z-shaped pressure plate (4) is fixedly connected to the bottom of the lower beam (3). A support platform (5) is provided below the pressure plate (4). An installation block (6) is fixed in the middle of the pressure plate (4). A sleeve (7) is fixed inside the installation block (6). A screw (8) is threaded inside the sleeve (7). A downward first distance sensor (9) is connected to the lower end of the screw (8). The bottom surface of the first distance sensor (9) is flush with the bottom surface of the pressure plate (4). An installation groove (10) is provided on the support platform (5). An upward second distance sensor (11) is installed in the installation groove (10). The second distance sensor (11) is offset from the first distance sensor (9), and the second distance sensor (11) faces the bottom surface of the pressure plate (4).

2. The automatic fabric thickness detection mechanism for a fabric spreading machine according to claim 1, characterized in that, The upper beam (2) is equipped with a first cylinder (12), the telescopic end of the first cylinder (12) is connected to a lifting beam (24), the lifting beam (24) is connected to an upper clamping plate (13), the top of the lower beam (3) is connected to a lower clamping plate (14) that matches the upper clamping plate, the upper clamping plate (13) and the lower clamping plate (14) are arranged opposite to each other, and the mounting block (6) is located on one side of the lower clamping plate (14).

3. The automatic fabric thickness detection mechanism for a fabric spreading machine according to claim 2, characterized in that: A strip-shaped cover (15) is fixedly connected to one side between the two wall panels (1), and the cover (15) is located above the pressure plate (4).

4. The automatic fabric thickness detection mechanism for a fabric spreading machine according to claim 3, characterized in that: Uprights (16) are also installed on the two wall panels (1). The lower end of the uprights (16) is connected to the side of the support platform (5). A top beam (17) is connected to the two uprights (16). A second cylinder (18) is installed on the top beam (17). The telescopic end of the second cylinder (18) is connected to the upper beam (2).

5. The automatic fabric thickness detection mechanism for a fabric spreading machine according to claim 4, characterized in that: The outer sidewall of the wall panel (1) is fixedly connected to four rectangular shafts (19), and rollers (20) are rotatably connected to the shafts (19). The opposite surfaces of the two uprights (16) are provided with guide rails (21). The four rollers (20) at the same end are paired up and slidably connected to both sides of the guide rails (21).

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