Non-woven fabric folding device

Abstract

The utility model discloses a non-woven fabric folding device, and relates to the technical field of non-woven fabrics. The non-woven fabric folding device comprises a feeding device, an overturning device, a first mechanical clamping jaw and a second mechanical clamping jaw. The feeding device is used for conveying non-woven fabrics to the folding station; the first mechanical clamping jaw and the second mechanical clamping jaw are arranged on the turnover device corresponding to the folding station; wherein the first mechanical clamping jaw is used for clamping the non-woven fabric to form a first clamping part, and the second mechanical clamping jaw is used for clamping the non-woven fabric to form a second clamping part; the first clamping part and the second clamping part are distributed at an interval along the length direction of the non-woven fabric; the turnover device is used for driving the first mechanical clamping jaw and the second mechanical clamping jaw so that the non-woven fabric between the first clamping part and the second clamping part can be turned over in the length direction of the non-woven fabric to form a non-woven fabric pile. According to the non-woven fabric folding device, the uniformity of all layers of non-woven fabric sections in a non-woven fabric pile formed by folding can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of nonwoven fabrics, and in particular to a nonwoven fabric folding device. Background Art

[0002] In the existing non-woven fabric product quality inspection, a portion of non-woven fabric is generally taken from the non-woven fabric roll as a sample for inspection. Generally, the length of the sample ranges from a dozen meters to several dozen meters. In order to facilitate delivery, the sample needs to be folded or rewound by a rewinding machine to form a non-woven fabric roll.

[0003] The non-woven fabric roll formed by rewinding the sample for inspection by the rewinding machine needs to be wound outside the roll core. The roll core will take up extra space during the storage and transportation of the non-woven fabric roll, resulting in higher storage and transportation costs.

[0004] Folding the sample for inspection includes folding the sample for inspection in the length direction so that the sample for inspection forms a non-woven fabric pile, and the non-woven fabric pile includes multiple layers of non-woven fabric segments stacked together. Furthermore, in the non-woven fabric pile, the non-woven fabric segments of adjacent layers are connected along the length direction of the folded sample for inspection. Although sending the sample for inspection in the form of a non-woven fabric pile can reduce storage and transportation costs, the formation of the non-woven fabric pile generally requires workers to fold the sample for inspection, and in the non-woven fabric pile formed by manually folding the sample for inspection, the non-woven fabric segments of each layer are not stacked neatly enough.

[0005] Therefore, how to improve the uniformity between the nonwoven fabric segments of each layer in the nonwoven fabric pile is still a technical problem that technicians in this field need to solve urgently. Utility Model Content

[0006] In view of this, in order to solve the above technical problems, the present application provides a non-woven fabric folding device.

[0007] To achieve the above-mentioned purpose, the present application provides a non-woven fabric folding device, which includes a feeding device, a turning device, a first mechanical gripper and a second mechanical gripper. The feeding device is used to convey non-woven fabric to a folding station. The first mechanical gripper and the second mechanical gripper are arranged on the turning device corresponding to the folding station.

[0008] The first mechanical clamp is used to clamp the non-woven fabric to form a first clamping portion, and the second mechanical clamp is used to clamp the non-woven fabric to form a second clamping portion. The first clamping portion and the second clamping portion are spaced apart along the length direction of the non-woven fabric. The flipping device is used to drive the first mechanical clamp and the second mechanical clamp so that the non-woven fabric between the first clamping portion and the second clamping portion is folded along the length direction of the non-woven fabric to form a non-woven fabric pile.

[0009] Beneficial effect: Different from the prior art, in the present application, the first mechanical clamp is used to clamp the non-woven fabric to form a first clamping portion, and the second mechanical clamp is used to clamp the non-woven fabric to form a second clamping portion. In this way, the distance between the first clamping portion and the second clamping portion is more precise, so that after the non-woven fabric between the first clamping portion and the second clamping portion is folded under the drive of the flipping device, the folding length of the non-woven fabric segment formed is more precise, and then the folding length of each layer of non-woven fabric segment formed after the non-woven fabric folding device folds the non-woven fabric multiple times is more uniform. Based on this, the uniformity between the layers of non-woven fabric segments in the non-woven fabric pile formed by folding can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic diagram of the main viewing direction of the nonwoven fabric folding device in the first embodiment of the present application;

[0011] Figure 2 yes Figure 1 A schematic diagram of the nonwoven fabric folding device from the A-direction perspective, wherein: Figure 2 The middle cloth-releasing reel and spacing adjustment assembly are not shown;

[0012] Figure 3a is a schematic diagram of step S11 in the first embodiment of the present application;

[0013] Figure 3b is a schematic diagram of step S12 in the first embodiment of the present application;

[0014] Figure 3c is a schematic diagram of step S13 in the first embodiment of the present application;

[0015] Figure 3d is a schematic diagram of a non-woven fabric pile formed after performing step S12 and step S13 twice in the first embodiment of the present application;

[0016] Figure 4a is a schematic diagram of step S122 in the first embodiment of the present application;

[0017] Figure 4b is a schematic diagram of step S123 in the first embodiment of the present application;

[0018] Figure 5 is a schematic diagram of the nonwoven fabric folding device in the second embodiment of the present application in the main viewing direction;

[0019] Figure 6 yes Figure 5 A schematic diagram of the nonwoven fabric folding device from the A-direction perspective, wherein: Figure 6 The middle cloth-releasing reel and spacing adjustment assembly are not shown;

[0020] Figure 7ais a schematic diagram of step S11 in the second embodiment of the present application;

[0021] Figure 7b It is a schematic diagram of step S13 in the second embodiment of the present application.

[0022] Figure numerals: 100-non-woven fabric folding device; 11-feeding device; 12-turning device; 13-first mechanical clamp; 14-second mechanical clamp; 15-first lifting device; 16-frame; 17-third displacement device; 18-fourth displacement device; 19-pressing device; 111-cloth placing reel; 112-conveyor belt; 1121-first sub-conveyor belt; 1122-second sub-conveyor belt; 113-guide member; 121-turning drive member; 1211-driving shaft; 122-adapter frame; 123-spacing adjustment assembly; 1231-first displacement device; 1232-second Displacement device; 151-second device body; 152-second telescopic rod; 153-second slider; 161-conveyor belt frame; 162-side frame; 163-vertical frame; 191-fifth displacement device; 192-second lifting device; 193-pressing member; 200-non-woven fabric; 21-non-woven fabric pile; 211-non-woven fabric section; 212-fold; 213-first fabric section end; 214-second fabric section end; 215-first clamping part; 216-second clamping part; 217-frame gap; L-length direction of non-woven fabric; W-width direction of non-woven fabric; D-folded length. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described implementation methods are only part of the implementation methods of the present application, rather than all the implementation methods. Based on the implementation methods in the present application, all other implementation methods obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0024] First embodiment

[0025] See also Figure 1-Figure 2 The nonwoven fabric folding device 100 of the present application includes a feeding device 11, a turning device 12, a first mechanical gripper 13 and a second mechanical gripper 14. The feeding device 11 is used to transport the nonwoven fabric 200 to the folding station. The first mechanical gripper 13 and the second mechanical gripper 14 are arranged on the turning device 12 corresponding to the folding station.

[0026] The first mechanical clamp 13 is used to clamp the non-woven fabric 200 to form a first clamping portion 215, and the second mechanical clamp 14 is used to clamp the non-woven fabric 200 to form a second clamping portion 216. The first clamping portion 215 and the second clamping portion 216 are spaced apart along the length direction L of the non-woven fabric 200. The flipping device 12 is used to drive the first mechanical clamp 13 and the second mechanical clamp 14 to fold the non-woven fabric 200 between the first clamping portion 215 and the second clamping portion 216 along the length direction L of the non-woven fabric 200 to form a non-woven fabric pile 21.

[0027] Optionally, the nonwoven fabric folding device 100 may include a control device (not shown), which is signal-connected to the feeding device 11, the flipping device 12, the first mechanical gripper 13, and the second mechanical gripper 14. The signal connection includes but is not limited to one or more of wired communication and wireless communication.

[0028] The control device is used to control the feeding device 11, the turning device 12, the first mechanical gripper 13 and the second mechanical gripper 14 to fold the non-woven fabric 200. The step of folding the non-woven fabric 200 includes steps S11 to S13 performed in sequence.

[0029] Step S11: Figure 3a As shown, the feeding device 11 is controlled to transport the nonwoven fabric 200 to the folding station.

[0030] Step S12: Comparison Figure 3a See also Figure 3b As shown, the first mechanical clamp 13 is controlled to clamp the nonwoven fabric 200 to form a Figure 3b The first clamping position 215 shown in FIG. 1 and the second mechanical clamping jaw 14 are controlled to clamp the nonwoven fabric 200 to form a nonwoven fabric as shown in FIG. Figure 3b The second clamping location 216 is shown.

[0031] Step S13: Comparison Figure 3b See also Figure 3c , the flipping device 12 is controlled to drive the first mechanical gripper 13 and the second mechanical gripper 14 to flip, so as to fold the non-woven fabric 200 delivered to the folding station, forming a Figure 3c The nonwoven pile 21 is shown.

[0032] It should be understood that by performing step S12 and step S13 once, the following Figure 3c As shown, a nonwoven fabric pile 21 having two layers of nonwoven fabric segments 211 is formed. By performing steps S12 and S13 twice, the nonwoven fabric pile 21 is formed as shown in FIG. Figure 3d As shown, there are three layers of non-woven fabric segments 211. Therefore, by performing step S12 and step S13 N times, the formed non-woven fabric pile 21 can have N+1 layers of non-woven fabric segments 211, where N is a positive integer.

[0033] It should be noted that, firstly, the first clamping portion 215 is the corresponding portion of the first mechanical clamp 13 in the non-woven fabric 200 when the first mechanical clamp 13 clamps the non-woven fabric 200. The first clamping portion 215 can move with the movement of the first mechanical clamp 13 relative to the non-woven fabric 200. Secondly, the second clamping portion 216 is the corresponding portion of the second mechanical clamp 14 in the non-woven fabric 200 when the second mechanical clamp 14 clamps the non-woven fabric 200. The second clamping portion 216 can move with the movement of the second mechanical clamp 14 relative to the non-woven fabric 200. Thirdly, as Figure 3c As shown, the folding length D is the size of the non-woven fabric section 211 in the length direction L of the non-woven fabric 200, which is related to the thickness of the non-woven fabric 200, the distance between the first clamping part 215 and the second clamping part 216, the size of the first clamping part 215 along the length direction L of the non-woven fabric 200, and the size of the second clamping part 216 along the length direction L of the non-woven fabric 200. Therefore, when the thickness of the non-woven fabric 200, the size of the first clamping part 215 along the length direction L of the non-woven fabric 200, and the size of the second clamping part 216 along the length direction L of the non-woven fabric 200 remain unchanged, the folding length D can be determined by the distance between the first clamping part 215 and the second clamping part 216 when the folding device drives the first mechanical clamp 13 and the second mechanical clamp 14 to flip. Fourth, as Figure 3d As shown, the non-woven fabric segments 211 of adjacent layers in the non-woven fabric pile 21 are connected to each other and are folded in half, so that the folded length D of each layer of the non-woven fabric segments 211 has a high uniformity.

[0034] In the above manner, the first mechanical clamp 13 is used to clamp the nonwoven fabric 200 to form the first clamping portion 215, and the second mechanical clamp 14 is used to clamp the nonwoven fabric 200 to form the second clamping portion 216. In this way, the distance between the first clamping portion 215 and the second clamping portion 216 is more accurate, so that after the nonwoven fabric 200 between the first clamping portion 215 and the second clamping portion 216 is folded by the flip device 12, the folding length D of the nonwoven fabric segment 211 formed is more accurate, and thus the folding length D of each layer of nonwoven fabric segment 211 formed after the nonwoven fabric folding device 100 folds the nonwoven fabric 200 multiple times is more uniform. Based on this, the uniformity between each layer of nonwoven fabric segment 211 in the nonwoven fabric pile 21 formed by folding can be improved.

[0035] Optionally, the non-woven fabric folding device 100 may include a cutting device (not shown), which is arranged corresponding to the folding station and is used to cut off the connection between adjacent non-woven fabric sections 211 in the non-woven fabric pile 21.

[0036] In the above manner, the continuous non-woven fabric 200 in the non-woven fabric pile 21 can be cut by the cutting device. In this way, when the non-woven fabric 200 sent for inspection in the form of the non-woven fabric pile 21 is inspected for product quality, the non-woven fabric 200 of appropriate length in the non-woven fabric pile 21 can be directly taken for inspection without cutting again, thereby facilitating the operation of the quality inspector.

[0037] In one example, the cutting device may include a horizontal feeding device and a cutting knife, and the cutting knife is disposed on the horizontal feeding device. Thus, the horizontal feeding device can drive the cutting knife to feed along the fold 212 formed between adjacent non-woven fabric segments 211 in the horizontal direction, and cut the connection between adjacent non-woven fabric segments 211 in the non-woven fabric pile 21, but is not limited thereto.

[0038] In another example, the cutting device may include a multi-axis robot arm and a cutting knife, and the cutting knife is disposed at the end of the multi-axis robot arm. In this way, the multi-axis robot arm can be used to drive the cutting knife to advance along the fold 212 formed between adjacent non-woven fabric segments 211, and cut the connection between adjacent non-woven fabric segments 211 in the non-woven fabric pile 21.

[0039] Furthermore, if Figure 1-Figure 2 As shown, the flip device 12 may include a flip driving member 121 and an adapter frame 122. The flip driving member 121 has a driving shaft 1211, and the driving shaft 1211 rotates around the width direction W of the non-woven fabric 200. The adapter frame 122 is fixed to the driving shaft 1211 to rotate around the width direction W of the non-woven fabric 200 under the drive of the driving shaft 1211. The first mechanical gripper 13 and the second mechanical gripper 14 are respectively arranged on the adapter frame 122 and are respectively located on both sides of the driving shaft 1211.

[0040] In the above manner, since the first mechanical gripper 13 and the second mechanical gripper 14 are respectively located on both sides of the driving shaft 1211, the gravity on both sides of the driving shaft 1211 can be more balanced, which is conducive to the center of gravity of the flipping device 12 falling within the driving shaft 1211. The center of gravity of the flipping device 12 falling within the driving shaft 1211 is conducive to the smooth flipping of the flipping device 12. Preferably, the first mechanical gripper 13 and the second mechanical gripper 14 are symmetrically arranged about the driving shaft 1211.

[0041] Furthermore, if Figure 1-Figure 2As shown, the flip device 12 may further include a spacing adjustment component 123, and the spacing adjustment component 123 is disposed on the adapter frame 122. The first mechanical clamp 13 and the second mechanical clamp 14 are respectively slidably connected to the adapter frame 122 and are disposed on the spacing adjustment component 123. The spacing adjustment component 123 is used to adjust the spacing between the first mechanical clamp 13 and the second mechanical clamp 14 along the spacing direction of the two opposite sides of the driving shaft 1211. Preferably, the spacing direction of the two opposite sides of the driving shaft 1211 is perpendicular to the width direction W of the non-woven fabric 200.

[0042] In the above manner, by using the spacing adjustment component 123, the spacing between the first mechanical clamp 13 and the second mechanical clamp 14 along the spacing direction of the two opposite sides of the driving shaft 1211 can be adjusted, so that the folded length D of the non-woven fabric segment 211 in the formed non-woven fabric pile 21 can be changed. In this way, the folded length D of the non-woven fabric segment 211 can be changed according to demand.

[0043] In the first example, the spacing adjustment component 123 independently drives the first mechanical clamp 13 and the second mechanical clamp 14 to move along the spacing directions of the two opposite sides of the driving shaft 1211. Figure 1-Figure 2 As shown, the spacing adjustment assembly 123 includes a first displacement device 1231 and a second displacement device 1232. The first displacement device 1231 is fixedly disposed on the adapter frame 122 and connected to the first mechanical clamp 13, so as to drive the first mechanical clamp 13 to move along the spacing direction of the two opposite sides of the driving shaft 1211. The second displacement device 1232 is fixedly disposed on the adapter frame 122 and connected to the second mechanical clamp 14, so as to drive the second mechanical clamp 14 to move along the spacing direction of the two opposite sides of the driving shaft 1211. In this way, the first displacement device 1231 can independently drive the first mechanical clamp 13, and the second displacement device 1232 can independently drive the second mechanical clamp 14, so that the movement of the first mechanical clamp 13 and the second mechanical clamp 14 is more flexible.

[0044] In the second example (not shown), the spacing adjustment component 123 is integrated into a common displacement device to drive the first mechanical clamp 13 and the second mechanical clamp 14 to move in opposite directions in the spacing direction on the opposite sides of the driving shaft 1211. For example, the common displacement device includes a first screw and a first device body, the first screw extends in the spacing direction on the opposite sides of the driving shaft and has a first screw segment corresponding to the first mechanical clamp and a second screw segment corresponding to the second mechanical clamp. The direction of rotation of the thread of the first screw segment is opposite to the direction of rotation of the thread of the second screw. The first mechanical clamp is threadedly connected to the first screw segment, and the second mechanical clamp is threadedly connected to the second screw segment. In this way, by using the first device body to drive the first screw to rotate, the first mechanical clamp and the second mechanical clamp can be driven to move in opposite directions in the spacing direction on the opposite sides of the driving shaft, thereby realizing the rapid adjustment of the spacing between the first mechanical clamp and the second mechanical clamp.

[0045] It should be noted that moving in opposite directions in the spacing directions on opposite sides of the driving shaft includes moving the first mechanical gripper and the second mechanical gripper in a pair of directions moving toward each other and moving the first mechanical gripper and the second mechanical gripper in a pair of directions moving away from each other.

[0046] The following description will be made by taking the structure of the spacing adjustment component 123 in the first example as an example.

[0047] By way of example and not limitation, Figure 4a As shown, the non-woven fabric pile 21 has two ends distributed along the length direction L of the non-woven fabric 200, namely a first fabric segment end 213 and a second fabric segment end 214. Thus, when executing step S12, steps S121 to S124 may be performed in sequence.

[0048] Step S121 : controlling the spacing adjustment component 123 to drive the first mechanical clamping jaw 13 and the second mechanical clamping jaw 14 to move toward each other along the spacing direction on the two opposite sides of the driving shaft 1211 .

[0049] Step S122: Figure 4a As shown, the second mechanical gripper 14 is controlled to fixedly grip the nonwoven fabric pile 21 to form a second gripping portion 216 , and the first mechanical gripper 13 is controlled to move along the nonwoven fabric pile 21 to grip the nonwoven fabric pile 21 to form a first gripping portion 215 .

[0050] In step S122 , the second clamping portion 216 is the portion where the second fabric segment end 214 is located, and the first clamping portion 215 is the portion between the first fabric segment end 213 and the second fabric segment end 214 and adjacent to the second fabric segment end 214 .

[0051] Step S123: Comparison Figure 4a See also Figure 4b, control the first mechanical clamp 13 to maintain the state of clamping the non-woven fabric pile 21, and at the same time control the spacing adjustment component 123 to drive the first mechanical clamp 13 to move along the spacing direction on both sides of the driving shaft 1211 away from the second mechanical clamp 14, so that the first clamping part 215 moves to the position where the first fabric segment end 213 is located.

[0052] Thus, in step S123, the first mechanical clamp 13 is used to maintain the state of clamping the non-woven fabric pile 21, and at the same time, the spacing adjustment component 123 is controlled to drive the first mechanical clamp 13 to move along the spacing directions on the opposite sides of the driving shaft 1211 toward the side away from the second mechanical clamp 14, so that the first mechanical clamp 13 can flatten and straighten the portion of the non-woven fabric pile 21 between the first fabric segment end 213 and the second fabric segment end 214 during the movement.

[0053] Step S124 : controlling the first mechanical clamping jaw 13 to increase the clamping force to fix the non-woven fabric pile 21 .

[0054] Thus, in step S124, the first mechanical gripper 13 fixedly clamps the nonwoven fabric pile 21 to avoid relative displacement between the nonwoven fabric pile 21 and the first mechanical gripper 13 when folding the nonwoven fabric 200 in subsequent steps (such as step S13), thereby improving the accuracy of the folding length D.

[0055] Optionally, the adapter frame 122 is provided with a plurality of dimension marks (not shown), and the plurality of dimension marks are arranged at intervals along the spacing directions of the two opposite sides of the driving shaft 1211. In this way, the dimension marks can assist the staff in correcting the spacing between the first clamping portion 215 and the second clamping portion 216, further improving the accuracy of the folding length D.

[0056] By way of example and not limitation, the size markings include, but are not limited to, tick marks, arrows, triangular marks, circular marks, and other regular or irregular shaped marks arranged in spacing directions on opposite sides of the drive shaft 1211 .

[0057] Furthermore, if Figure 1-Figure 2As shown, the non-woven fabric folding device 100 may include a first lifting device 15, and the flipping device 12 is arranged on the first lifting device 15. The first lifting device 15 is used to drive the flipping device 12 to rise or fall. In this way, before controlling the first mechanical gripper 13 and the second mechanical gripper 14 to clamp the non-woven fabric 200, the first lifting device 15 can be controlled to drive the flipping device 12 to descend to a position relatively close to the feeding device 11. Before controlling the flipping device 12 to drive the first mechanical gripper 13 and the second mechanical gripper 14 to flip, the first lifting device 15 can be controlled to drive the flipping device 12 to rise to a position relatively far away from the feeding device 11. After the flipping device 12 drives the first mechanical gripper 13 and the second mechanical gripper 14 to flip, the first lifting device 15 can be controlled to drive the flipping device 12 to descend to a position relatively close to the feeding device 11, so that the first mechanical gripper 13 and the second mechanical gripper 14 can re-place the folded non-woven fabric 200 on the feeding device 11.

[0058] Optionally, the first lifting device 15 includes but is not limited to a slider transmission device. For example, the slider transmission device can be a screw slider device, an electric cylinder slider device, a cylinder slider device, a crank slider device, a cam slider device or a gear rack device.

[0059] By way of example and not limitation, the electric cylinder slider device and the pneumatic cylinder slider device are used as examples for explanation. Both the electric cylinder and the pneumatic cylinder have telescopic characteristics and can be called telescopic devices, and the telescopic device generally includes a device body and a telescopic rod. Therefore, Figure 1-Figure 2 As shown, in one example, the first lifting device 15 is an electric cylinder slider device or a pneumatic cylinder slider device. In this case, the first lifting device 15 may include a second device body 151, a second telescopic rod 152 and a second slider 153. The second telescopic rod 152 is connected to the second device body 151 and the second slider 153, respectively, and the flip device 12 is disposed on the second slider 153. The second device body 151 is used to drive the second telescopic rod 152 to extend out of the second device body 151 or retract toward the second device body 151, so as to drive the flip device 12 to rise or fall.

[0060] Alternatively, if Figure 1-Figure 2 As shown, the feeding device 11 may include a cloth placing reel 111 and a conveyor belt 112. The cloth placing reel 111 is used to set a roll of non-woven fabric 200. The conveyor belt 112 is used to receive the non-woven fabric 200 released from the roll of non-woven fabric 200 and convey it to the folding station.

[0061] Alternatively, if Figure 1-Figure 2As shown, the nonwoven fabric folding device 100 may include a frame 16, and the frame 16 includes a conveyor frame 161, a side frame 162, and a vertical frame 163. The conveyor belt 112 is distributed around the conveyor frame 161, the side frame 162 is connected to the side of the conveyor frame 161, and the vertical frame 163 is arranged on the side frame 162 and is spaced apart from the conveyor frame 161 along the width direction W of the nonwoven fabric 200. Among them, the first lifting device 15 is arranged on the vertical frame 163.

[0062] Optionally, the nonwoven fabric folding device 100 may include a third displacement device 17. The vertical frame 163 is slidably connected to the side frame 162 along the width direction W of the nonwoven fabric 200, and the third displacement device 17 is respectively connected to the vertical frame 163 and the side frame 162 to drive the vertical frame 163 to move closer to or away from the conveyor belt frame 161 along the width direction W of the nonwoven fabric 200.

[0063] In the above manner, the vertical frame 163 is close to the conveyor belt frame 161 along the width direction W of the non-woven fabric 200, so that the first mechanical clamp 13 and the second mechanical clamp 14 can enter the folding station and clamp the non-woven fabric 200. The vertical frame 163 is away from the conveyor belt frame 161 along the width direction W of the non-woven fabric 200, so that the first mechanical clamp 13 and the second mechanical clamp 14 can exit the folding station and release the non-woven fabric 200.

[0064] In the above manner, step S21 is further included between step S11 and step S12.

[0065] Step S21 : controlling the third displacement device 17 to drive the vertical frame 163 to approach the conveyor frame 161 along the width direction W of the non-woven fabric 200 , so that the non-woven fabric 200 reaching the folding station is placed inside the first mechanical gripper 13 and the second mechanical gripper 14 .

[0066] Furthermore, in step S13 , the step of the flipping device 12 driving the first mechanical gripper 13 and the second mechanical gripper 14 to flip includes steps S31 to S33 performed in sequence.

[0067] Step S31: Control the conveyor belt 112 to continue conveying the nonwoven fabric 200, and control the first lifting device 15 to drive the flipping device 12 to rise, and control the flipping device 12 to rotate 90 degrees to drive the first mechanical gripper 13 and the second mechanical gripper 14 to complete half of the flipping.

[0068] Step S32: Control the conveyor belt 112 to continue conveying the nonwoven fabric 200, and control the first lifting device 15 to drive the flipping device 12 to descend, and control the flipping device 12 to rotate another 90 degrees to drive the first mechanical gripper 13 and the second mechanical gripper 14 to complete the flipping of the other half.

[0069] Step S33: Control the first mechanical gripper 13 and the second mechanical gripper 14 to release the nonwoven fabric 200, and control the third displacement device 17 to drive the vertical frame 163 away from the conveyor frame 161 along the width direction W of the nonwoven fabric 200, so that the first mechanical gripper 13 and the second mechanical gripper 14 exit the folding station.

[0070] The above is only an exemplary operation mode, and in other examples, other feasible operation modes may also be adopted.

[0071] Optionally, the non-woven fabric folding device 100 may include a fourth displacement device 18. The fourth displacement device 18 is disposed on the side of the conveyor belt frame 161, and the fourth displacement device 18 can drive the side frame 162 to move along the side of the conveyor belt frame 161. In this way, the position of the flipping device 12 in the length direction of the non-woven fabric 200 can be adjusted by the fourth displacement device 18.

[0072] Furthermore, if Figure 1-Figure 2 As shown, the nonwoven fabric folding device 100 may include a pressing device 19, which is used to press down the nonwoven fabric pile 21. In this way, after each folding of the nonwoven fabric 200, the pressing device 19 can be used to press down the nonwoven fabric pile 21 to compact the nonwoven fabric segments 211 of each layer in the nonwoven fabric pile 21, so as to reduce the volume of the nonwoven fabric pile 21 and flatten the nonwoven fabric segments 211 of each layer in the nonwoven fabric pile 21.

[0073] By way of example and not limitation, the pressing device 19 may include a fifth displacement device 191, a second lifting device 192, and a holding member 193. The fifth displacement device 191 is disposed on the side of the conveyor belt frame 161, the second lifting device 192 is disposed on the fifth displacement device 191 and extends above the conveyor belt 112, and the holding member 193 is disposed above the conveyor belt 112 and connected to the second lifting device 192. The fifth displacement device 191 is used to drive the second lifting device 192 to move along the side of the conveyor belt frame 161, so that the holding member 193 moves along the length direction L of the non-woven fabric 200. The holding member 193 moves along the length direction L of the non-woven fabric 200, so that the holding member 193 can be moved to the folding station or exit the folding station, and the second lifting device 192 is used to drive the holding member 193 to press down or lift up.

[0074] In the above manner, before folding the non-woven fabric 200 each time, the fifth displacement device 191 can be used to drive the pressing member 193 to exit the folding station to avoid the influence of the pressing member 193 on the operation of the first mechanical clamp 13 and the second mechanical clamp 14. After folding the non-woven fabric 200 each time, the fifth displacement device 191 can be used to drive the pressing member 193 to enter the folding station so that the pressing member 193 can press down the non-woven fabric pile 21.

[0075] Optionally, after the pressing member 193 enters the folding station, the second lifting device 192 drives the pressing member 193 to press down to compact the non-woven fabric pile 21 , and at the same time the fifth displacement device 191 drives the pressing member 193 to roll on the non-woven fabric pile 21 to roll the non-woven fabric pile 21 .

[0076] It should be understood that in another alternative example (not shown), the fifth displacement device 191 may not be provided and the positions of the second lifting device 192 and the holding member 193 may be changed. Specifically, the holding member 193 is not a rolling member but a pressing block, the second lifting device 192 is provided on the vertical frame 163 and is located above the adapter frame 122, and the holding member 193 is provided on the second lifting device 192. When it is necessary to press down the non-woven fabric pile 21, the second lifting device 192 drives the holding member 193 to press down so that the holding member 193 presses the non-woven fabric pile 21. When it is not necessary to press down the non-woven fabric pile 21, the second lifting device 192 drives the holding member 193 to lift up so that the holding member 193 is separated from the non-woven fabric pile 21.

[0077] Second embodiment

[0078] Furthermore, compared Figure 1-Figure 2 See also Figure 5-Figure 6 The same parts of the nonwoven fabric folding device 100 in the second embodiment as those in the first embodiment are not described in detail. The nonwoven fabric folding device 100 in the second embodiment is different from the nonwoven fabric folding device 100 in the first embodiment in that the feeding device 11 may include a guide member 113, which is disposed on a side of the folding station away from the cloth placing reel 111 and extends upward to above the conveyor belt 112.

[0079] The guide member 113 is used to guide the end of the non-woven fabric 200 close to the guide member 113 to bulge upward.

[0080] Optionally, the conveyor belt 112 includes a first sub-conveyor belt 1121 and a second sub-conveyor belt 1122 arranged side by side, and the guide member 113 is arranged between the first sub-conveyor belt 1121 and the second sub-conveyor belt 1122 and connected to the conveyor belt frame 161 .

[0081] In the second embodiment, if Figure 7a As shown, the step of conveying the non-woven fabric 200 to the folding station in step S11 includes conveying the non-woven fabric 200 to the folding station by using a conveyor belt 112 , and allowing a portion of the non-woven fabric 200 to extend outward through a guide member 113 .

[0082] In the above manner, under the guidance of the guide member 113, one end of the non-woven fabric 200 close to the guide member 113 bulges upward to form a frame gap 217 below the non-woven fabric 200, and the frame gap 217 connects the two sides of the non-woven fabric 200 along the width direction of the non-woven fabric 200. The frame gap 217 is used to accommodate a portion of the first mechanical clamp 13 and / or the second mechanical clamp 14 in the subsequent step S12, so as to cooperate with another portion of the first mechanical clamp 13 and / or the second mechanical clamp 14 to clamp the non-woven fabric 200.

[0083] It should be understood that the overhead gap 217 may be a gap connecting two side edges of the non-woven fabric 200 along the width direction W formed under the non-woven fabric 200 by overheadly positioning a portion of the non-woven fabric 200 below.

[0084] In the second embodiment, compared Figure 7a See also Figure 7b After step S13 is completed, the portion of the nonwoven fabric 200 transported to the folding station is folded to form Figure 7b The nonwoven pile 21 is shown.

[0085] The above are only implementation methods of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A nonwoven fabric folding device, characterized in that: The non-woven fabric folding device comprises a feeding device, a turning device, a first mechanical gripper and a second mechanical gripper; the feeding device is used to convey the non-woven fabric to the folding station; the first mechanical gripper and the second mechanical gripper are arranged on the turning device corresponding to the folding station; Among them, the first mechanical clamp is used to clamp the non-woven fabric to form a first clamping part, and the second mechanical clamp is used to clamp the non-woven fabric to form a second clamping part; the first clamping part and the second clamping part are spaced apart along the length direction of the non-woven fabric; the flipping device is used to drive the first mechanical clamp and the second mechanical clamp so that the non-woven fabric between the first clamping part and the second clamping part is folded along the length direction of the non-woven fabric to form a non-woven fabric pile.

2. The nonwoven fabric folding device according to claim 1, characterized in that: The turning device comprises: A turning driving member, comprising a driving shaft, wherein the driving shaft rotates around the width direction of the nonwoven fabric; A transfer frame, arranged on the driving shaft, to rotate around the width direction of the non-woven fabric under the drive of the driving shaft; Wherein, the first mechanical clamp and the second mechanical clamp are respectively arranged on the adapter frame and are respectively located on two sides of the driving shaft.

3. The nonwoven fabric folding device according to claim 2, characterized in that: The flipping device further includes a spacing adjustment component, which is disposed on the adapter frame; the first mechanical clamp and the second mechanical clamp are respectively slidably connected to the adapter frame and are disposed on the spacing adjustment component; The spacing adjustment component is used to adjust the spacing between the first mechanical clamp and the second mechanical clamp along the spacing direction of the two sides opposite to each other of the driving shaft.

4. The nonwoven fabric folding device according to claim 3, characterized in that: The spacing adjustment component comprises: A first displacement device, fixedly disposed on the adapter frame and connected to the first mechanical clamp, for driving the first mechanical clamp to move along the spacing directions of two opposite sides of the driving shaft; and a second displacement device, which is fixedly disposed on the adapter frame and connected to the second mechanical clamping claw, so as to drive the second mechanical clamping claw to move along the spacing directions of the two opposite sides of the driving shaft.

5. The nonwoven fabric folding device according to claim 2, characterized in that: The adapter frame is provided with a plurality of size marks, and the plurality of size marks are arranged at intervals along the spacing direction of both sides of the driving shaft.

6. The nonwoven fabric folding device according to claim 5, characterized in that: The dimensions are marked with tick marks.

7. The nonwoven fabric folding device according to claim 1, characterized in that: The nonwoven fabric folding device further comprises a first lifting device, the flipping device is arranged on the first lifting device, and the first lifting device is used to drive the flipping device to rise or fall.

8. The nonwoven fabric folding device according to claim 1, characterized in that: The nonwoven fabric folding device comprises a pressing device, and the pressing device is used to press down the nonwoven fabric pile.

9. The nonwoven fabric folding device according to claim 1, characterized in that: The feeding device includes a cloth placing reel and a conveyor belt; the cloth placing reel is used to set the non-woven fabric roll; the conveyor belt is used to receive the non-woven fabric released from the non-woven fabric roll and convey it to the folding station.

10. The nonwoven fabric folding device according to claim 9, characterized in that: The feeding device further comprises a guide member, which is arranged on a side of the folding station away from the cloth placing reel and extends upward to above the conveyor belt; Among them, the guide member is used to guide the end of the non-woven fabric close to the guide member to bulge upward to form a frame gap under the non-woven fabric, and the frame gap connects the two side edges of the non-woven fabric along the width direction of the non-woven fabric; the frame gap is used to accommodate a part of the first mechanical clamp and / or the second mechanical clamp to extend into and cooperate with another part of itself to clamp the non-woven fabric.

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