Exhaust device of spreading machine

Abstract

The utility model relates to an exhaust device of a spreading machine, the exhaust device comprises a rack, a lifting assembly and a pressing rod, the rack is used for being connected with a workbench, the lifting assembly is used for driving the pressing rod to move in the vertical direction, and the pressing rod is used for being in contact with the top of cloth. After the spreading machine spreads cloth to the position below the pressing rod, the lifting assembly drives the pressing rod to move downwards in the vertical direction, so that the pressing rod abuts against the top of the cloth, and the situation that air enters between the cloth to cause uneven stacking of the cloth is avoided as much as possible.

Description

Technical Field

[0001] The present application relates to the field of cloth stretching machines, and in particular to an exhaust device of a cloth stretching machine. Background Art

[0002] Since most flexible materials are produced and transported in rolls, an important process when they arrive at the user's factory is to turn the roll material into a multi-layer flat state so that it can be easily cut and used. Usually, a cloth stretching machine is used to turn the roll material into a multi-layer flat state.

[0003] The Chinese patent with the authorization announcement number CN112301611A discloses a cloth stretching machine, which includes a working platform and a cloth stretching machine body slidably arranged on the top of the working platform, and also includes a swinging cloth spreading device arranged on one side of the cloth outlet of the cloth stretching machine body. Fixed plates are symmetrically arranged on the two opposite sides of the cloth stretching machine body outlet. The swinging cloth spreading device includes a mounting plate arranged between the two fixed plates, a swinging scraper rotatably arranged on the mounting plate, and a connecting rod driving mechanism for controlling the rotation of the swinging scraper. The swinging scraper is parallel to the top surface of the working platform, and a height adjustment device for adjusting the height of the swinging cloth spreading device is arranged on the fixed plate. In the process of stretching and stacking the cloth, the cloth stretching machine of this application flattens the cloth through the swinging cloth spreading device, which effectively improves the wrinkles of the cloth in the working process of the cloth stretching machine.

[0004] With regard to the above-mentioned related technologies, when the cloth pulling machine body reciprocates on the workbench, the scraper constantly approaches or moves away from one end of the workbench. When the scraper moves away from one end of the workbench, air is easily introduced into the gap between the cloths at one end of the workbench, causing the cloths to bulge and become uneven. Utility Model Content

[0005] In order to reduce the amount of air that enters between fabrics, the present application provides an exhaust device for a fabric stretching machine.

[0006] The exhaust device of a cloth spreading machine provided in the present application adopts the following technical solution:

[0007] An exhaust device for a cloth stretching machine includes a frame, a lifting assembly, and a pressure rod. The frame is used to be connected to a workbench, the lifting assembly is connected to the frame, the length direction of the pressure rod is consistent with the width direction of the cloth, the lifting assembly is used to drive the pressure rod to move in a vertical direction, and the pressure rod is used to contact the top of the cloth.

[0008] By adopting the above technical scheme, during the process of the cloth pulling machine body pulling the cloth, the cloth pulling machine body spreads the cloth on the working platform, and after the cloth pulling machine body drives the cloth to be spread out a certain distance from under the pressure rod, the lifting assembly drives the pressure rod to move downward in the vertical direction, so that the pressure rod abuts against the top of the cloth, and when the pressure rod abuts against the top of the cloth, the cloth pulling machine body moves along the length direction of the working platform and continues to spread the cloth, and after the cloth pulling machine body spreads a layer of cloth, the lifting assembly drives the pressure rod to move upward in the vertical direction and makes the pressure rod away from the cloth, and when the cloth pulling machine body spreads the cloth, the pressure rod abuts against the top of the cloth, so as to minimize the situation where air enters between the cloths and causes uneven cloth stacking.

[0009] Optionally, the pressure rod is rotatably connected to a mounting plate, the length direction of the mounting plate is consistent with the radial direction of the pressure rod, one end of the mounting plate is rotatably sleeved on the pressure rod along its length direction, and the other end of the mounting plate is connected to an auxiliary rod, the length direction of the auxiliary rod is consistent with the length direction of the pressure rod, and the auxiliary rod is used to contact the top of the fabric.

[0010] By adopting the above technical solution, when the cloth pressed by the pressure rod is spaced apart from the pressure rod, the auxiliary rod droops due to its own gravity, so that the auxiliary rod abuts against the top of the cloth, thereby minimizing the gap between the pressure rod and the cloth, which causes air to enter between the cloth and causes uneven cloth stacking.

[0011] Optionally, the pressure rod is connected with a connecting sleeve, the connecting sleeve is arranged on the pressure rod, the connecting sleeve is connected with a limiting rod, the length direction of the limiting rod is consistent with the length direction of the pressure rod, the mounting plate is provided with a limiting hole for the limiting rod to pass through, the limiting hole is an arc-shaped hole, the concave arc surface of the limiting hole is arranged toward the pressure rod, and the limiting rod is connected in the limiting hole along the circumferential sliding direction of the pressure rod.

[0012] By adopting the above technical solution, when the mounting plate rotates, the limit rod is slidably connected to the limit hole along the circumference of the pressure rod, so that the mounting plate can move stably in a predetermined direction, and when the auxiliary rod droops due to its own gravity, the inner wall of the limit hole abuts against the circumference of the limit rod, thereby limiting the rotation range of the mounting plate.

[0013] Optionally, the connecting sleeve is rotatably connected to the pressure rod, and the connecting sleeve is locked to the pressure rod by a locking piece.

[0014] By adopting the above technical solution, the connecting sleeve is rotatably connected to the pressure rod, so that the position of the limit rod can be adjusted according to needs, thereby changing the rotation range of the mounting plate.

[0015] Optionally, the lifting assembly includes a first chain, a first sprocket, and a second sprocket. The first sprocket and the second sprocket are both rotatably connected to a frame. The first sprocket and the second sprocket are spaced apart on the frame in a vertical direction. One end of the first chain is meshed with the first sprocket, and the other end of the first chain is meshed with the second sprocket. The pressure rod is connected to the first chain, and the frame is connected to a driving member, which is used to drive the first sprocket to rotate.

[0016] By adopting the above technical solution, the driving member drives the first sprocket to rotate, the first chain is driven to be transmitted, and drives the second sprocket to rotate, thereby driving the pressure rod to move back and forth in the vertical direction.

[0017] Optionally, the frame is provided with a sliding hole, the length direction of the sliding hole is consistent with the vertical direction, a slider is connected in the sliding hole, the slider is slidably connected in the sliding hole along the vertical direction, the first sprocket is rotatably connected to the side of the slider close to the pressure rod, and the frame is connected to an adjustment component, which is used to adjust the position of the slider in the sliding hole.

[0018] By adopting the above technical solution, the adjustment component changes the distance between the first sprocket and the second sprocket by adjusting the position of the slider in the sliding hole, and then adjusts the tension of the first chain, so as to minimize the influence of excessive or insufficient tension of the first chain on the movement of the pressure rod.

[0019] Optionally, the frame is connected to a support plate, and the adjustment assembly includes a first bolt and a first nut connected to the support plate, the length direction of the first bolt is consistent with the vertical direction, the first bolt passes through and is threadedly connected to the support plate, the first nut is threadedly sleeved on the first bolt, and the bottom of the support plate contacts the top of the first nut, and the top of the first bolt contacts the bottom of the slider.

[0020] By adopting the above technical solution, the first bolt is rotated to move the first bolt in the vertical direction, thereby driving the slider to slide in the vertical direction and connect to the sliding hole, so as to adjust the tension of the first chain.

[0021] Optionally, the driving member includes a third sprocket, a fourth sprocket, a second chain, and a first motor, the first sprocket is connected to a connecting rod, the first sprocket is sleeved on one end of the connecting rod, the central axis of the first sprocket is collinear with the central axis of the connecting rod, the length direction of the connecting rod is consistent with the width direction of the fabric, the connecting rod passes through and is rotatably connected to a slider, the third sprocket is sleeved on the other end of the connecting rod, the first motor is connected to the frame along the width direction of the fabric and away from the side of the third sprocket, the output shaft of the first motor passes through the frame, the fourth sprocket is connected to the output shaft of the first motor, one end of the second chain is meshed with the third sprocket, and the other end of the second chain is meshed with the fourth sprocket.

[0022] By adopting the above technical solution, the first motor drives the fourth sprocket to rotate, thereby driving the second chain to transmit, the second chain drives the third sprocket to rotate, the connecting rod follows the third sprocket to rotate, and the connecting rod drives the first sprocket to rotate, thereby driving the first chain to rotate, so that the pressure rod follows the first chain to move in the vertical direction.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. During the process of the cloth pulling machine body pulling the cloth, the cloth pulling machine body spreads the cloth on the working platform. After the cloth pulling machine body drives the cloth to be spread out from under the pressure rod for a distance, the lifting assembly drives the pressure rod to move downward in the vertical direction, so that the pressure rod abuts against the top of the cloth. When the pressure rod abuts against the top of the cloth, the cloth pulling machine body moves along the length direction of the working platform and continues to spread the cloth. After the cloth pulling machine body spreads a layer of cloth, the lifting assembly drives the pressure rod to move upward in the vertical direction and makes the pressure rod away from the cloth. When the cloth pulling machine body spreads the cloth, the pressure rod abuts against the top of the cloth, so as to avoid the situation where air enters between the cloths and causes uneven stacking of the cloths as much as possible;

[0025] 2. When the mounting plate rotates, the limit rod slides along the circumferential direction of the pressure rod and is connected to the limit hole, so that the mounting plate can move stably in a predetermined direction. When the auxiliary rod droops due to its own gravity, the inner wall of the limit hole abuts against the circumferential side of the limit rod, thereby limiting the rotation range of the mounting plate;

[0026] 3. The first motor drives the fourth sprocket to rotate, thereby driving the second chain to transmit, the second chain drives the third sprocket to rotate, the connecting rod follows the third sprocket to rotate, and the connecting rod drives the first sprocket to rotate, thereby driving the first chain to rotate, so that the pressure rod follows the first chain to move in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural diagram of this embodiment.

[0028] Figure 2 It is a top view of this embodiment.

[0029] Figure 3 This embodiment Figure 2 Sectional view along AA direction.

[0030] Figure 4 It is a front view of the present embodiment.

[0031] Figure 5 This embodiment Figure 4 Cross-sectional view along the BB axis.

[0032] Figure 6 This embodiment Figure 1 Magnified view of part C.

[0033] Explanation of the reference numerals: 100, frame; 110, sliding hole; 120, support plate; 200, pressure rod; 210, mounting plate; 211, sleeve; 212, limiting hole; 213, through hole; 220, auxiliary rod; 230, connecting sleeve; 231, second bolt; 232, limiting rod; 300, lifting assembly; 310, first chain; 320, first sprocket; 321, linkage rod; 330, second sprocket; 340, slider; 341, moving block; 342, fixing plate; 343, pushing plate; 350, connecting rod; 400, driving member; 410, third sprocket; 420, fourth sprocket; 430, second chain; 440, first motor; 500, adjusting assembly; 510, first bolt; 520, first nut. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The present application embodiment discloses an exhaust device for a cloth spreading machine. Figure 1 and Figure 2 The exhaust device of the cloth spreading machine includes a frame 100 and a pressure rod 200. The frame 100 is used to connect with the workbench. The length direction of the pressure rod 200 is consistent with the width direction of the cloth. The pressure rod 200 is connected to the frame 100 through a lifting assembly 300. The lifting assembly 300 is used to drive the pressure rod 200 to slide along the vertical direction and connect to the frame 100. During the spreading process of the cloth spreading machine body, the pressure rod 200 contacts the top of the cloth, so as to avoid the cloth suction causing uneven stacking of the cloth.

[0036] Reference Figure 1 and Figure 3 The lifting assembly 300 includes a first chain 310, a first sprocket 320, and a second sprocket 330. The first sprocket 320 and the second sprocket 330 are both rotatably connected to the frame 100. The first sprocket 320 and the second sprocket 330 are spaced apart on the frame 100 along the vertical direction. One end of the first chain 310 is meshed with the first sprocket 320, and the other end of the first chain 310 is meshed with the second sprocket 330. There are two lifting assemblies 300, which are spaced apart along the width direction of the cloth, and the pressure rod 200 is respectively connected to the two first chains 310 at both ends along its length direction.

[0037] Reference Figure 3 and Figure 4The first sprocket 320 is connected to the frame 100 through the slider 340. The frame 100 is provided with a sliding hole 110 for the slider 340 to be inserted. The length direction of the sliding hole 110 is consistent with the vertical direction, and the slider 340 is slidably connected in the sliding hole 110 along the vertical direction. The slider 340 is connected to a connecting rod 350. The length direction of the connecting rod 350 is consistent with the width direction of the cloth. The connecting rod 350 passes through and is rotatably connected to the slider 340 along its length direction. The first sprocket 320 is sleeved on one end of the connecting rod 350 close to the pressure rod 200. The central axis of the first sprocket 320 is colinear with the central axis of the connecting rod 350.

[0038] Reference Figure 3 and Figure 5 The frame 100 is connected to a driving member 400, which includes a third sprocket 410, a fourth sprocket 420, a second chain 430, and a first motor 440. The third sprocket 410 is sleeved on the end of the connecting rod 350 away from the first sprocket 320, and the central axis of the third sprocket 410 is collinear with the central axis of the connecting rod 350. The first motor 440 is connected to the frame 100 along the cloth width direction and away from the third sprocket 410. The output shaft of the first motor 440 passes through the frame 100 along the cloth width direction. The fourth sprocket 420 is connected to the output shaft of the first motor 440, and the central axis of the fourth sprocket 420 is collinear with the central axis of the output shaft of the first motor 440. One end of the second chain 430 is meshed with the third sprocket 410, and the other end of the second chain 430 is meshed with the fourth sprocket 420. A linkage rod 321 is connected between the two first sprockets 320 . The length direction of the linkage rod 321 is consistent with the length direction of the pressure rod 200 . The linkage rod 321 is connected to the two first sprockets 320 at both ends along its length direction, and the center axis of the linkage rod 321 is collinear with the center axis of the first sprocket 320 .

[0039] The first motor 440 drives the fourth sprocket 420 to rotate, thereby driving the second chain 430 and the third sprocket 410 to rotate. The third sprocket 410 drives the first sprocket 320 to rotate, driving the first chain 310 and the second sprocket 330 to rotate. The first chain 310 drives the pressure rod 200 to move back and forth in the vertical direction.

[0040] Reference Figure 3 The slider 340 includes a moving block 341 and a fixing plate 342. The moving block 341 is embedded in the sliding hole 110, and the moving block 341 is slidably connected to the sliding hole 110 along the vertical direction. The fixing plate 342 is connected to the side of the moving block 341 close to the pressing rod 200, and the fixing plate 342 contacts the frame 100 along the cloth width direction and away from the pressing rod 200. A push plate 343 is connected to the bottom of the fixing plate 342, and the length direction of the push plate 343 is consistent with the length direction of the pressing rod 200.

[0041] Reference Figure 3The frame 100 is connected with an adjustment assembly 500, and the adjustment assembly 500 is used to push the push plate 343 and thus adjust the position of the slider 340 in the sliding hole 110. The frame 100 is connected with a support plate 120, and the support plate 120 is located directly below the push plate 343. The adjustment assembly 500 includes a first bolt 510 and a first nut 520 connected to the support plate 120. The length direction of the first bolt 510 is consistent with the vertical direction. The first bolt 510 passes through and is threadedly connected to the support plate 120 in the vertical direction. The first nut 520 is threadedly sleeved on the first bolt 510, and the bottom of the support plate 120 contacts the top of the first nut 520, and the top of the first bolt 510 contacts the bottom of the push plate 343.

[0042] By rotating the first bolt 510 , the push plate 343 is pushed in the vertical direction, thereby driving the moving block 341 to slide in the vertical direction and connect to the sliding hole 110 , thereby changing the distance between the first sprocket 320 and the second sprocket 330 , and further adjusting the tension of the first chain 310 .

[0043] Reference Figure 3 and Figure 6 The pressure rod 200 is rotatably sleeved with a mounting plate 210, and two mounting plates 210 are provided, and the two mounting plates 210 are spaced apart along the length direction of the pressure rod 200. An auxiliary rod 220 is arranged between the two mounting plates 210, and the length direction of the auxiliary rod 220 is consistent with the length direction of the pressure rod 200, and the two ends of the auxiliary rod 220 along its length direction are respectively connected to the two mounting plates 210. The length direction of the mounting plate 210 is consistent with the radial direction of the pressure rod 200, and one end of the mounting plate 210 along its length direction is rotatably sleeved on the pressure rod 200, and the other end of the mounting plate 210 is connected to the auxiliary rod 220. The auxiliary rod 220 is used to contact the top of the cloth.

[0044] Reference Figure 3 and Figure 6, a sleeve 211 is connected to the side of the mounting plate 210 close to the other mounting plate 210, and the sleeve 211 is sleeved on the pressure rod 200, and the central axis of the sleeve 211 is collinear with the central axis of the pressure rod 200. A connecting sleeve 230 is connected to the other end of the sleeve 211 away from the mounting plate 210, and the connecting sleeve 230 is rotatably sleeved on the pressure rod 200, and the central axis of the connecting sleeve 230 is collinear with the central axis of the pressure rod 200. The connecting sleeve 230 is connected to a locking member, which is provided by a second bolt 231, and the second bolt 231 passes through the connecting sleeve 230 along the radial direction of the connecting sleeve 230 and is threadedly connected to the pressure rod 200. The connecting sleeve 230 is connected to a limiting rod 232 on one side close to the mounting plate 210. The length direction of the limiting rod 232 is consistent with the length direction of the pressure rod 200. The mounting plate 210 is provided with a limiting hole 212 for the limiting rod 232 to pass through. The limiting hole 212 is an arc-shaped hole. The concave arc surface of the limiting hole 212 is arranged toward the pressure rod 200. A through opening 213 is provided at the bottom of the mounting plate 210. The through opening 213 is connected to the limiting hole 212. The limiting rod 232 slides circumferentially along the pressure rod 200 and is connected in the limiting hole 212 and the through opening 213.

[0045] When the pressure rod 200 is spaced apart from the cloth, the auxiliary rod 220 sags due to its own gravity, so that the bottom of the auxiliary rod 220 contacts the cloth, further reducing the unevenness of the cloth stacking.

[0046] The implementation principle of the exhaust device of a cloth-pulling machine in an embodiment of the present application is as follows: the cloth-pulling machine body moves on the working platform to pull and spread the cloth. When the cloth-pulling machine body drives the cloth to move to the bottom of the pressure rod 200 and drives the cloth to be spread a certain distance along the length direction of the working platform, the first motor 440 drives the fourth sprocket 420 to rotate, so that the second chain 430 is transmitted and drives the third sprocket 410 to rotate, the connecting rod 350 and the first sprocket 320 rotate with the third sprocket 410, and the first sprocket 320 drives the first chain 310 to transmit, thereby driving the pressure rod 200 to move downward in the vertical direction, so that the pressure rod 200 abuts against the top of the cloth. At the same time, the cloth-pulling machine body drives the cloth to continue to be spread along the length direction of the working platform, so as to avoid air from entering between the cloths as much as possible, thereby reducing the uneven stacking of the cloths. When there is a gap between the cloth and the pressure rod 200, the auxiliary rod 220 sags due to its own gravity, so that the auxiliary rod 220 abuts against the top of the cloth, further reducing the air between the cloths.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An exhaust device for a cloth spreading machine, characterized in that: The invention comprises a frame (100), a lifting assembly (300), and a pressure rod (200), wherein the frame (100) is used to be connected to a workbench, the lifting assembly (300) is connected to the frame (100), the length direction of the pressure rod (200) is consistent with the width direction of the cloth, the lifting assembly (300) is used to drive the pressure rod (200) to move in a vertical direction, and the pressure rod (200) is used to contact the top of the cloth.

2. The exhaust device of the cloth stretching machine according to claim 1, characterized in that: The pressure rod (200) is rotatably connected to a mounting plate (210), the length direction of the mounting plate (210) being consistent with the radial direction of the pressure rod (200), one end of the mounting plate (210) being rotatably sleeved on the pressure rod (200) along its length direction, the other end of the mounting plate (210) being connected to an auxiliary rod (220), the length direction of the auxiliary rod (220) being consistent with the length direction of the pressure rod (200), and the auxiliary rod (220) being used to contact the top of the cloth.

3. The exhaust device of the cloth stretching machine according to claim 2, characterized in that: The pressure rod (200) is connected to a connecting sleeve (230), the connecting sleeve (230) is sleeved on the pressure rod (200), the connecting sleeve (230) is connected to a limiting rod (232), the length direction of the limiting rod (232) is consistent with the length direction of the pressure rod (200), the mounting plate (210) is provided with a limiting hole (212) for the limiting rod (232) to pass through, the limiting hole (212) is an arc-shaped hole, the concave arc surface of the limiting hole (212) is arranged toward the pressure rod (200), and the limiting rod (232) is connected to the limiting hole (212) by sliding along the circumference of the pressure rod (200).

4. The exhaust device of the cloth stretching machine according to claim 3 is characterized in that: The connecting sleeve (230) is rotatably connected to the pressure rod (200), and the connecting sleeve (230) is locked to the pressure rod (200) via a locking piece.

5. The exhaust device of the cloth stretching machine according to claim 1, characterized in that: The lifting assembly (300) comprises a first chain (310), a first sprocket (320), and a second sprocket (330); the first sprocket (320) and the second sprocket (330) are both rotatably connected to the frame (100); the first sprocket (320) and the second sprocket (330) are spaced apart on the frame (100) in a vertical direction; one end of the first chain (310) is meshed with the first sprocket (320); the other end of the first chain (310) is meshed with the second sprocket (330); the pressure rod (200) is connected to the first chain (310); the frame (100) is connected to a driving member (400); the driving member (400) is used to drive the first sprocket (320) to rotate.

6. The exhaust device of the cloth stretching machine according to claim 5, characterized in that: The frame (100) is provided with a sliding hole (110), the length direction of the sliding hole (110) is consistent with the vertical direction, a slider (340) is connected to the sliding hole (110), the slider (340) is slidably connected to the sliding hole (110) along the vertical direction, the first sprocket (320) is rotatably connected to the slider (340) on the side close to the pressure rod (200), and the frame (100) is connected to an adjustment component (500), and the adjustment component (500) is used to adjust the position of the slider (340) in the sliding hole (110).

7. The exhaust device of the cloth stretching machine according to claim 6, characterized in that: The frame (100) is connected to a support plate (120), and the adjustment assembly (500) comprises a first bolt (510) and a first nut (520) connected to the support plate (120); the length direction of the first bolt (510) is consistent with the vertical direction; the first bolt (510) passes through and is threadedly connected to the support plate (120); the first nut (520) is threadedly sleeved on the first bolt (510); the bottom of the support plate (120) contacts the top of the first nut (520); and the top of the first bolt (510) contacts the bottom of the slider (340).

8. The exhaust device of the cloth stretching machine according to claim 6, characterized in that: The driving member (400) comprises a third sprocket (410), a fourth sprocket (420), a second chain (430), and a first motor (440); the first sprocket (320) is connected to a connecting rod (350); the first sprocket (320) is sleeved on one end of the connecting rod (350); the central axis of the first sprocket (320) is colinear with the central axis of the connecting rod (350); the length direction of the connecting rod (350) is consistent with the width direction of the cloth; the connecting rod (350) passes through and is rotatably connected to the slider (34 0), the third sprocket (410) is sleeved on the other end of the connecting rod (350), the first motor (440) is connected to a side of the frame (100) along the width direction of the cloth and away from the third sprocket (410), the output shaft of the first motor (440) passes through the frame (100), the fourth sprocket (420) is connected to the output shaft of the first motor (440), one end of the second chain (430) is meshed with the third sprocket (410), and the other end of the second chain (430) is meshed with the fourth sprocket (420).

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