Pneumatic hold-down synchronous cutting device for automatic spreading machine

Abstract

The utility model relates to the technical field of automatic spreading machines, in particular to a pneumatic hold-down synchronous cutting device for an automatic spreading machine, which comprises a machine tool body, a movable machine base body capable of moving along the length direction of the machine tool body, and a pneumatic hold-down synchronous cutting device mounted at the movable machine base body, according to the pneumatic hold-down synchronous cutting device for the automatic spreading machine, a pneumatic pushing mechanism drives a first elastic hold-down mechanism, a positioning hold-down mechanism and a second elastic hold-down mechanism to hold down cloth on the front side and the rear side of a movable machine base body respectively; after the cloth is cut, the auxiliary conveying roller rotates and can be matched with the conveying roller to guide and convey the cloth to the positioning and pressing mechanism by a certain distance, and after the positioning and pressing mechanism is reset, the conveying roller is still propped against the upper side of the auxiliary conveying roller under the pushing of the elastic seat; due to the elastic arrangement of the second elastic pressing mechanism, the pressing roller can conduct pneumatic pressing limiting at different heights on the cloth continuously stacked on the upper side of the machine tool.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic cloth drawing machine technical field, concretely relates to a kind of pneumatic pressure holding synchronous cutting device for automatic cloth drawing machine. BACKGROUND

[0002] Automatic cloth drawing machine is the core equipment in textile, clothing, home textile etc. industry, realizes cloth automation, high-precision spreading and cutting front preparation. It replaces traditional manual cloth drawing by the collaborative work of mechanical structure, electric control system and pneumatic or hydraulic component, solves the problems such as low efficiency of manual operation, uneven cloth tension, poor cloth laying precision, etc. It is a key link of modern garment production line.

[0003] The existing automatic cloth drawing machine is composed of machine tool, movable base, conveying assembly and cutting assembly, wherein the conveying assembly and the cutting assembly are located on the movable base, and the cutting assembly is located at the end of the conveying assembly. When using, the cloth is guided out to the cutting assembly by the conveying assembly, and then the movable base moves along the machine tool to lay the cloth flat on the side of the machine tool. After reaching the appropriate cloth laying length, the cutting assembly is used to cut the cloth.

[0004] However, the cutting assembly is not provided with a pressing component, and during the cutting process of the cutting assembly, the cloth is in a straightened state. After cutting, the cloth will bounce away from the cutting position due to its elasticity, resulting in the cloth not being in a flat state after cutting. At this time, if the movable base continues to drive the cloth to lay on the side of the machine tool, the cloth will be in a messy stacking state. Therefore, after each cutting is completed, the staff needs to re-adjust the state of the cloth at the movable base, which is time-consuming and laborious. At the same time, when the cloth is elastic and loose, the conveying assembly cannot continuously guide the cloth flatly, and the cloth may be jammed. INVENTION CONTENTS

[0005] To solve the above problems, a pneumatic pressure holding synchronous cutting device for automatic cloth drawing machine is provided. The first elastic pressing mechanism, the positioning pressing mechanism and the second elastic pressing mechanism are driven by the pneumatic pushing mechanism to press the cloth on the front and rear sides of the movable base body respectively. After cutting the cloth, the auxiliary conveying roller rotates to guide the cloth to the positioning pressing mechanism for a distance in cooperation with the conveying roller, and after the positioning pressing mechanism resets, the conveying roller still abuts the upper side of the auxiliary conveying roller under the pushing of the elastic seat. The elastic setting of the second elastic pressing mechanism allows the pressing roller to perform pneumatic pressing limiting of different heights on the continuously stacked cloth on the side of the machine tool.

[0006] The utility model provides a kind of pneumatic pressure holding synchronous cutting device for automatic cloth drawing machine, for cutting after cloth is laid flat, including machine tool body, still including the mobile base body that can be moved along the length direction of machine tool body, still including the conveying assembly body that is installed at mobile base body and follows mobile base body and lays cloth along the length direction of machine tool body;It further includes the cutting device that is arranged at the end of mobile base body;The cutting device includes cutting assembly body for cutting cloth, and first elastic holding mechanism, second elastic holding mechanism and positioning holding mechanism for holding cloth are arranged at the both sides of cutting assembly body;The cutting device further includes the pneumatic pushing mechanism that pushes cutting assembly body to move down and cuts cloth and presses first elastic holding mechanism to limit;The cutting device further includes auxiliary conveying roller that cooperates with first elastic holding mechanism to transport cloth secondly.

[0007] Preferably, the pneumatic pushing mechanism includes a mounting seat, and a pushing cylinder fixedly connected with the mobile base body through the mounting seat, and the pushing cylinder bottom is fixedly connected with a pushing frame.

[0008] Preferably, the cutting assembly body, the second elastic holding mechanism and the positioning holding mechanism are all installed on the pushing frame.

[0009] Preferably, the positioning holding mechanism includes a positioning roller fixedly installed on the pushing frame, and a clamping seat arranged at the end of the mobile base body and cooperating with the positioning roller to clamp the cloth, and the upper end surface of the clamping seat is inclined.

[0010] Preferably, the first elastic holding mechanism includes a conveying roller in contact with the upper surface of the auxiliary conveying roller at the bottom, and an elastic seat located at both ends of the conveying roller and sleeved with the conveying roller, and a guide groove cooperating with the elastic seat is horizontally and transversely provided in the mobile base body.

[0011] Preferably, the top end of the elastic seat is connected with the inner wall of the guide groove, the guide groove vertically extends upward to form a sliding part, and the end of the pushing frame extends horizontally into the sliding part.

[0012] Preferably, the second elastic holding mechanism includes a holding roller, and a telescopic member located at both sides of the holding roller and capable of driving the holding roller to move vertically, and the telescopic member is vertically installed on the pushing frame.

[0013] Preferably, the positioning holding mechanism is located on one side of the cutting assembly body close to the conveying assembly body, the second elastic holding mechanism is located on the other side of the cutting assembly body, and the first elastic holding mechanism is located on the side of the positioning holding mechanism away from the cutting assembly body.

[0014] The utility model discloses compared with prior art's beneficial effect is:

[0015] 1. through pneumatic pushing mechanism drive first elastic pressure holding mechanism and positioning pressure holding mechanism to the cloth that cuts cloth is located mobile base body place cloth pneumatic pressure holding, through the second elastic pressure holding mechanism to the cloth that cuts cloth is located mobile base body place cloth pneumatic pressure holding, can guarantee the flatness of cloth after cutting mobile base, can guarantee the flatness of cloth after cutting mobile base body upside, need not worker to arrange the cloth after cutting, save time and effort;

[0016] 2. after cutting cloth, the auxiliary conveying roller rotation can with the conveyer roller cooperation and guide cloth to the positioning pressure holding mechanism place and send a distance, and when positioning pressure holding mechanism resets, the conveyer roller still with the auxiliary conveying roller upside abuts under the push of elastic seat, effectively avoid the emergence of cloth rebound problem after cutting;

[0017] 3. the elastic setting of second elastic pressure holding mechanism, so that pressure holding roller can the cloth that cutting cloth is located mobile base body upside continuously adds different height pneumatic pressure holding limit, use more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a kind of automatic cloth drawing machine three-dimensional structure schematic diagram of automatic cloth drawing machine pneumatic pressure holding synchronous cutting device;

[0019] Figure 2 It is a kind of mobile base three-dimensional structure schematic diagram of automatic cloth drawing machine pneumatic pressure holding synchronous cutting device;

[0020] Figure 3 It is a kind of mobile base body and cutting device three-dimensional structure schematic diagram of automatic cloth drawing machine pneumatic pressure holding synchronous cutting device;

[0021] Figure 4 It is a kind of cutting device three-dimensional structure schematic diagram of automatic cloth drawing machine pneumatic pressure holding synchronous cutting device;

[0022] Figure 5 It is a kind of cutting device side view structure schematic diagram of automatic cloth drawing machine pneumatic pressure holding synchronous cutting device;

[0023] Figure 6 It is a kind of elastic seat three-dimensional cross section structure schematic diagram of automatic cloth drawing machine pneumatic pressure holding synchronous cutting device;

[0024] Figure 7 It is a kind of telescopic piece three-dimensional cross section structure schematic diagram of automatic cloth drawing machine pneumatic pressure holding synchronous cutting device.

[0025] The figure marks are: 1, machine tool body; 2, moving machine base body; 2a, conveying assembly body; 3, cutting device; 3a, cutting assembly body; 3b, first elastic pressure holding mechanism; 3b1, conveying roller; 3b2, elastic seat; 3c, second elastic pressure holding mechanism; 3c1, pressure holding roller; 3c2, telescopic piece; 3d, positioning pressure holding mechanism; 3d1, positioning roller; 3d2, clamping seat; 3e, pneumatic pushing mechanism; 3e1, mounting seat; 3e2, pushing cylinder; 3e3, pushing frame; 3f, auxiliary conveying roller. DETAILED DESCRIPTION

[0026] In order to further understand the features, technical means and specific purposes and functions achieved by the utility model, the utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0027] Referring to Figures 1-3 As shown in the figure, a pneumatic pressure holding synchronous cutting device for an automatic cloth stretching machine is used for cutting after the cloth is laid flat, comprising a machine tool body 1, further comprising a moving machine base body 2 that can move along the length direction of the machine tool body 1, further comprising a conveying assembly body 2a installed at the moving machine base body 2 and laying cloth along the length direction of the machine tool body 1 following the moving machine base body 2; further comprising a cutting device 3 arranged at the end of the moving machine base body 2.

[0028] It should be noted that when using the automatic cloth stretching machine, the cloth is first butt-jointed with the conveying assembly body 2a at the moving machine base body 2, and then the moving machine base body 2 moves along the length direction of the machine tool body 1. At the same time, the conveying assembly body 2a drives the cloth to expand along the machine tool body 1 through the pushing between the rollers. Until the cloth expands to the set length, the cloth can be cut through the cutting device 3.

[0029] Referring to Figures 2-5 As shown in the figure, the cutting device 3 comprises a cutting assembly body 3a for cutting work of the cloth, and a first elastic pressure holding mechanism 3b, a second elastic pressure holding mechanism 3c and a positioning pressure holding mechanism 3d arranged on both sides of the cutting assembly body 3a and used for pressure holding of the cloth.

[0030] It should be noted that the first elastic pressure holding mechanism 3b and the positioning pressure holding mechanism 3d pressure hold the cloth located at the moving machine base body through pneumatic pressure holding, and the second elastic pressure holding mechanism 3c pressure holds the cloth laid flat on the upper side of the machine tool body through pneumatic pressure holding, which can not only ensure the flatness of the cloth at the moving machine base after cutting, but also ensure the flatness of the cloth on the upper side of the machine tool body after cutting, without the need for workers to arrange the cut cloth, saving time and effort.

[0031] The cutting device 3 further comprises a pneumatic pushing mechanism 3e for pushing the cutting assembly body 3a downward to cut the cloth and press the first elastic pressing mechanism 3b downward to limit the position.

[0032] As shown in Figure 4 and Figure 5 , the pneumatic pushing mechanism 3e comprises a mounting seat 3e1 and a pushing cylinder 3e2 fixedly connected with the moving base body 2 through the mounting seat 3e1, and the bottom of the pushing cylinder 3e2 is fixedly connected with a pushing frame 3e3.

[0033] It should be noted that in use, the pushing cylinder 3e2 installed at the mounting seat 3e1 pushes the pushing frame 3e3 and the mechanism installed at the pushing frame 3e3 downward to clamp the end of the cloth.

[0034] As shown in Figure 4 , the cutting assembly body 3a, the second elastic pressing mechanism 3c and the positioning pressing mechanism 3d are all installed on the pushing frame 3e3.

[0035] As shown in Figure 5 , the positioning pressing mechanism 3d comprises a positioning roller 3d1 fixedly installed at the pushing frame 3e3, and a clamping seat 3d2 provided at the end of the moving base body 2 and cooperating with the positioning roller 3d1 to clamp the cloth, and the upper end surface of the clamping seat 3d2 is inclined.

[0036] It should be noted that when the positioning pressing mechanism 3d is pushed downward by the pneumatic pushing mechanism 3e, the outer surface of the positioning roller 3d1 pushes the cloth to tightly adhere to the surface of the auxiliary conveying roller 3f and the surface of the clamping seat 3d2, showing a pneumatic pressing effect on the cloth. And this pressing is a fixed pressing, which realizes the positioning of the cloth. The inclination of the upper surface of the clamping seat 3d2 is used to realize the guidance of the subsequent moving direction of the cloth.

[0037] As shown in Figure 4 and Figure 6 , the first elastic pressing mechanism 3b comprises a conveying roller 3b1 in contact with the upper surface of the auxiliary conveying roller 3f, and an elastic seat 3b2 located at both ends of the conveying roller 3b1 and sleeved with the conveying roller 3b1, and the moving base body 2 is horizontally and transversely provided with a guide groove matched with the elastic seat 3b2.

[0038] It should be noted that after the cutting work is completed, the elastic clamping and guiding effect of the end of the cloth can be realized by the cooperation of the auxiliary conveying roller 3f and the conveying roller 3b1. Both the elastic clamping and guiding effect of the end of the cloth and the cooperation with the conveying assembly body 2a to realize the conveying of the cloth can be realized.

[0039] As shown in Figure 6 The top end of the elastic seat 3b2 is connected with the inner wall of the guide groove, the guide groove vertically extends upward to form a sliding part, and the end of the pushing frame 3e3 horizontally extends into the sliding part.

[0040] It should be noted that, in order to further enhance the pressing effect on the cloth, when the pneumatic pushing mechanism 3e works, the end of the pushing frame 3e3 will move along the sliding part and push the elastic seat 3b2, thereby pushing the conveying roller 3b1 and the auxiliary conveying roller 3f to fix and press the cloth. When the pushing frame 3e3 is reset, the elastic seat 3b2 will push the conveying roller 3b1 and the auxiliary conveying roller 3f to elastically press the cloth.

[0041] As shown in Figure 3 , Figure 5 and Figure 7 The second elastic pressing mechanism 3c includes a pressing roller 3c1 and a telescopic piece 3c2 located on both sides of the pressing roller 3c1 and capable of driving the pressing roller 3c1 to move vertically, and the telescopic piece 3c2 is vertically installed at the pushing frame 3e3.

[0042] It should be noted that the elastic setting of the second elastic pressing mechanism 3c makes the pressing roller 3c1 capable of continuously and superimposedly pressing and limiting the cloth on the upper side of the machine tool body 1 at different heights under the telescopic pushing action of the telescopic piece 3c2, which is more convenient to use.

[0043] As shown in Figure 5 The positioning and pressing mechanism 3d is located on one side of the cutting assembly body 3a close to the conveying assembly body 2a, the second elastic pressing mechanism 3c is located on the other side of the cutting assembly body 3a, and the first elastic pressing mechanism 3b is located on the side of the positioning and pressing mechanism 3d away from the cutting assembly body 3a.

[0044] The above embodiments only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be noted that, for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A pneumatic pressure holding synchronous cutting device for automatic cloth spreading machine, used for cutting after cloth is spread, comprising a machine tool body (1), characterized in that, The application also comprises a moving base body (2) which can move along the length direction of the machine tool body (1), and a conveying assembly body (2a) which is installed at the moving base body (2) and follows the moving base body (2) to lay the cloth along the length direction of the machine tool body (1); the application also comprises a cutting device (3) which is arranged at the end of the moving base body (2); the cutting device (3) comprises a cutting assembly body (3a) which is used for cutting the cloth, and a first elastic pressing mechanism (3b), a second elastic pressing mechanism (3c) and a positioning pressing mechanism (3d) which are arranged at both sides of the cutting assembly body (3a) and are used for pressing the cloth; the cutting device (3) also comprises a pneumatic pushing mechanism (3e) which pushes the cutting assembly body (3a) to move downward to cut the cloth and presses the first elastic pressing mechanism (3b) downward to limit the position; the cutting device (3) also comprises an auxiliary conveying roller (3f) which cooperates with the first elastic pressing mechanism (3b) to convey the cloth again.

2. The pneumatic holding and cutting device for automatic fabric stretching machine according to claim 1, wherein, The pneumatic pushing mechanism (3e) comprises a mounting seat (3e1) and a pushing cylinder (3e2) which is fixedly connected with the moving base body (2) through the mounting seat (3e1), and the bottom of the pushing cylinder (3e2) is fixedly connected with a pushing frame (3e3).

3. The pneumatic holding and cutting device according to claim 2, wherein, The cutting assembly body (3a), the second elastic pressing mechanism (3c) and the positioning pressing mechanism (3d) are all installed on the pushing frame (3e3).

4. The pneumatic holding and cutting device for automatic fabric stretching machine according to claim 2, wherein, The positioning pressing mechanism (3d) comprises a positioning roller (3d1) which is fixedly installed on the pushing frame (3e3), and a clamping seat (3d2) which is arranged at the end of the moving base body (2) and cooperates with the positioning roller (3d1) to clamp the cloth, and the upper end surface of the clamping seat (3d2) is arranged in an inclined manner.

5. The pneumatic hold-down and synchronization cutting device for automatic fabric stretching machine according to claim 2, wherein, The first elastic pressing mechanism (3b) comprises a conveying roller (3b1) which is in contact with the upper surface of the auxiliary conveying roller (3f), and an elastic seat (3b2) which is located at both ends of the conveying roller (3b1) and is sleeved with the conveying roller (3b1), and a guide groove which is used in cooperation with the elastic seat (3b2) is horizontally and transversely arranged in the moving base body (2).

6. The pneumatic hold-down and synchronization cutting device for automatic fabric stretching machine according to claim 5, characterized in that, The top end of the elastic seat (3b2) is connected with the inner wall of the guide groove, the guide groove vertically extends upward to form a sliding part, and the end of the pushing frame (3e3) horizontally extends into the sliding part.

7. The pneumatic hold-down and synchronization cutting device for the automatic fabric stretching machine according to claim 2, characterized in that, The second elastic pressing mechanism (3c) comprises a pressing roller (3c1) and an extension piece (3c2) which can drive the pressing roller (3c1) to move vertically and is vertically installed on the pushing frame (3e3).

8. The pneumatic hold-down and synchronization cutting device for the automatic fabric stretching machine according to claim 1, characterized in that, The positioning pressing mechanism (3d) is located on one side of the cutting assembly body (3a) which is close to the conveying assembly body (2a), the second elastic pressing mechanism (3c) is located on the other side of the cutting assembly body (3a), and the first elastic pressing mechanism (3b) is located on the side of the positioning pressing mechanism (3d) which is away from the cutting assembly body (3a).

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