A cloth spreading machine for elastic cloth

Abstract

The application provides a cloth spreading machine suitable for elastic cloth, which comprises a workbench, a cloth spreading structure arranged on one side of the workbench and capable of driving the cloth to move to the other side of the workbench, a fixing mechanism arranged on the other side of the workbench and used for fixing the end of the cloth delivered by the cloth spreading structure, and a buffer structure arranged at the cloth outlet of the cloth spreading structure, wherein the buffer structure comprises a buffer unit and a clamping unit; the buffer unit provides a force in the opposite direction of the rebound direction of the cloth after the cloth is cut and senses the pulling force of the cloth; the clamping unit clamps the edge of the cloth before the cloth is cut after the end of the cloth is fixed on the fixing mechanism and releases the clamped cloth after the buffer unit senses the cloth returning to the original state. The application can prevent the cloth from being wrinkled due to rebound when the cloth is cut.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cloth processing, and particularly relates to a cloth spreading machine suitable for elastic cloth. BACKGROUND

[0002] The cloth spreading machine is one of common devices in a clothing factory, which spreads the cloth material in rolls layer by layer, and cuts the cloth according to a template after the spreading.

[0003] When the current cloth spreading machine spreads the elastic cloth, the cloth is elongated due to the elasticity when the cloth is stretched and spread by the cloth spreading mechanism; when the cloth is spread to the set length position, the cloth is cut by the cutting knife, and then the cloth is restored to the original state from the elastic deformation, at this time, the length of the cloth is shorter than the preset length value, which causes the size accuracy error of the cloth spreading; in addition, during the process of restoring the cloth to the original state from the elastic deformation at the moment when the cloth is cut, wrinkles are caused due to the elastic stretching operation, which affects the flatness of the cloth spreading and causes the cutting piece to be scrapped.

[0004] Therefore, how to prevent the cloth from rebounding and wrinkling when the cloth is cut is a problem to be solved at present. SUMMARY

[0005] The present application aims to provide a cloth spreading machine suitable for elastic cloth, which can prevent the cloth from rebounding and wrinkling when the cloth is cut.

[0006] In order to achieve the above-mentioned purpose, the present application provides a cloth spreading machine suitable for elastic cloth, which comprises:

[0007] a workbench;

[0008] a cloth spreading mechanism arranged on one side of the workbench and capable of driving the cloth to move to the other side of the workbench;

[0009] a fixing mechanism arranged on the other side of the workbench and used for fixing the end of the cloth delivered by the cloth spreading mechanism;

[0010] a buffer mechanism arranged at the cloth outlet of the cloth spreading mechanism;

[0011] The buffer mechanism comprises a buffer unit and a clamping unit; the buffer unit provides a force in the opposite direction of the rebound direction of the cloth after the cloth is cut and senses the tension of the cloth; the clamping unit clamps the edge of the cloth before the cloth is cut after the end of the cloth is fixed on the fixing mechanism, and releases the clamped cloth after the buffer unit senses that the cloth is restored to the original state.

[0012] Optionally, the buffering unit and the clamping unit are both two, the two buffering units are symmetrically arranged on both sides of the cloth outlet of the spreading structure, and the clamping unit is connected with the buffering unit.

[0013] Optionally, the buffering unit comprises a pulling force sensor, a spring, a damping rod and a translation rod.

[0014] The pulling force sensor is arranged between the damping rod and the translation rod, the other end of the damping rod abuts against the spreading structure, and the other end of the translation rod is connected to the clamping unit.

[0015] The spring is sleeved on the outer periphery of the damping rod.

[0016] Optionally, the clamping unit comprises a telescopic rod and a clamping jaw.

[0017] One end of the telescopic rod is connected to the translation rod, and the other end of the telescopic rod is connected to the clamping jaw.

[0018] The telescopic rod can be telescoped in the width direction of the cloth, and the clamping jaw is used for clamping the edge of the cloth.

[0019] Optionally, the spreading structure comprises:

[0020] a spreading structure body;

[0021] two cloth pressing rod connecting blocks symmetrically arranged on both sides of the cloth outlet of the spreading structure body;

[0022] an upper pressing piece and a cloth pressing bottom piece arranged between the two cloth pressing rod connecting blocks; the upper pressing piece is located above the cloth pressing bottom piece, and a gap for passing through the cloth is formed between the upper pressing piece and the cloth pressing bottom piece;

[0023] The buffering unit is arranged on the cloth pressing rod connecting block.

[0024] Optionally, the spreading structure body is provided with a cutting unit, and the cutting unit comprises a cutting knife sliding rod, a slider and a cutting knife.

[0025] The cutting knife sliding rod is arranged between the two cloth pressing rod connecting blocks, the slider is slidingly arranged on the cutting knife sliding rod, and the cutting knife is arranged below the slider.

[0026] Optionally, the cloth spreading machine further comprises a controller, and the controller is used for controlling the telescoping of the telescopic rod, the opening and closing of the clamping jaw and the movement of the slider.

[0027] In an optional solution, the spreading structure body is driven by an electric control roller to translate on the workbench, the controller obtains the coordinates of the terminal position of the spreading structure body during spreading according to the length of the cloth to be laid and the elastic deformation amount of different elastic cloths during spreading, and the controller controls the movement of the electric control roller according to the coordinates.

[0028] In an optional solution, the pressing rod connecting block has a containing cavity inside, the pulling force sensor, the spring and the damping rod are located in the containing cavity; one end of the damping rod abuts against the rear wall of the pressing rod connecting block;

[0029] The outer side wall of the pressing rod connecting block has a through hole, one end of the translation rod connected with the pulling force sensor is located in the containing cavity, and the other end passes through the through hole and is connected with the telescopic rod.

[0030] In an optional solution, the fixing mechanism comprises:

[0031] Two fixing frame supports symmetrically arranged on the workbench, and vertical slides are formed in the inner sides of the two fixing frame supports;

[0032] A sliding block arranged in the slide and capable of sliding up and down along the slide;

[0033] A lifting rod connected to the two sliding blocks;

[0034] A fixing plate connected to the lifting rod, and the fixing plate is used for pressing the end portion of the cloth.

[0035] The present application has the following beneficial effects:

[0036] The present application has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0037] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description thereof taken in conjunction with the accompanying drawings in which like reference numerals refer to like elements throughout the several views.

[0038] Figure 1 FIG. 1 is a schematic view of the overall structure of a cloth laying machine according to an embodiment of the present application.

[0039] Figure 2 A schematic diagram of a buffer structure and part of a spreading structure in an embodiment of the application.

[0040] Figure 3 A schematic diagram of a buffer structure in an embodiment of the application.

[0041] Figure 4 A schematic diagram of a fixing mechanism in an embodiment of the application.

[0042] Figure 5 A schematic diagram of a fixing mechanism in an embodiment of the application. Figure 2 A partial enlarged schematic diagram of A in the middle.

[0043] BRIEF DESCRIPTION OF DRAWINGS

[0044] 1 - workbench, 2 - spreading structure main body, 3 - hopper, 4 - spreading roller, 5 - cloth pressing rod connecting block, 501 - cloth pressing bottom piece, 502 - upper pressing piece, 503 - cutting knife sliding rod, 504 - slider, 505 - cutting knife, 6 - translation rod, 601 - tension sensor, 602 - damping rod, 603 - spring, 7 - telescopic rod, 8 - electromagnetic clamping jaw, 9 - fixed frame support, 901 - sliding block, 10 - lifting rod, 11 - support arm, 12 - fixed frame. DETAILED DESCRIPTION

[0045] The application will be further described below in conjunction with the drawings and specific embodiments. According to the following description and drawings, the advantages and features of the application will be more apparent, however, it should be noted that the concept of the technical solution of the application can be implemented in various different forms and is not limited to the specific embodiments described herein. The drawings are all in a very simplified form and all use non-precise proportions, only for the purpose of conveniently and clearly assisting in the description of the embodiments of the application.

[0046] It should be understood that when an element or layer is referred to as being "on", "adjacent", "connected to", or "coupled to" another element or layer, it can be directly on, adjacent, connected or coupled to the other element or layer, or intervening elements or layers can be present. In contrast, when an element is referred to as being "directly on", "directly adjacent", "directly connected to", or "directly coupled to" another element or layer, then there are no intervening elements or layers present. It will be appreciated that, although terms such as first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms are simply used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present application.

[0047] Spatially relative terms, such as "beneath", "below", "lower", "under", "above", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and / or operation in addition to the orientations depicted in the figures. For example, if a device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatial descriptions used herein interpreted accordingly.

[0048] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising", when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0049] Embodiment 1

[0050] With reference to Figures 1 to 5 The embodiment provides a cloth spreading machine suitable for elastic cloth, which comprises:

[0051] a workbench 1;

[0052] a cloth spreading structure arranged on one side of the workbench 1 and capable of driving the cloth to move to the other side of the workbench 1;

[0053] a fixing mechanism arranged on the other side of the workbench 1 and used for fixing the end of the cloth delivered by the cloth spreading structure;

[0054] a buffer structure arranged at the cloth outlet of the cloth spreading structure;

[0055] The buffer structure comprises a buffer unit and a clamping unit; the buffer unit provides a force in the direction opposite to the rebound direction of the cloth after the cloth is cut and senses the pulling force of the cloth; the clamping unit clamps the edge of the cloth before the cloth is cut after the end of the cloth is fixed on the fixing mechanism and releases the clamped cloth after the buffer unit senses the recovery of the cloth.

[0056] In the embodiment, the buffering unit and the clamping unit are both two, the two buffering units are symmetrically arranged at two sides of the cloth outlet of the spreading structure, and the clamping unit is connected with the buffering unit.

[0057] In the embodiment, the buffering unit comprises a pulling force sensor 601, a spring 603, a damping rod 602 and a translation rod 6, the pulling force sensor 601 is arranged between the damping rod 602 and the translation rod 6, the other end of the damping rod 602 abuts against the spreading structure, and the other end of the translation rod 6 is connected to the clamping unit; and the spring 603 is sleeved on the outer periphery of the damping rod 602.

[0058] In the embodiment, the clamping unit comprises a telescopic rod 7 and a clamping jaw 8, one end of the telescopic rod 7 is connected to the translation rod 6, and the other end of the telescopic rod 7 is connected to the clamping jaw 8; the telescopic rod 7 can be telescoped along the width direction of the cloth, and the clamping jaw 8 is used for clamping the edge of the cloth.

[0059] In the embodiment, the spreading structure comprises a spreading structure body 2, two cloth pressing rod connecting blocks 5 symmetrically arranged at two sides of the cloth outlet of the spreading structure body 2, an upper pressing piece 502 and a cloth pressing bottom piece 501 arranged between the two cloth pressing rod connecting blocks 5, the upper pressing piece 502 is located above the cloth pressing bottom piece 501, and a gap for passing through the cloth is formed between the upper pressing piece 502 and the cloth pressing bottom piece 501; and the buffering unit is arranged on the cloth pressing rod connecting block 5.

[0060] In the embodiment, the cloth pressing rod connecting block 5 has a containing cavity inside, the pulling force sensor 601, the spring 603 and the damping rod 602 are located in the containing cavity, one end of the damping rod 602 abuts against the rear wall of the cloth pressing rod connecting block 5, the outer side wall of the cloth pressing rod connecting block 5 has a through hole, one end of the translation rod 6 connected with the pulling force sensor 601 is located in the containing cavity, and the other end of the translation rod 6 passes through the through hole and is connected with the telescopic rod 7.

[0061] In the embodiment, the spreading structure body 2 is provided with a cutting unit, the cutting unit comprises a cutting knife sliding rod 503, a slider 504 and a cutting knife 505, the cutting knife sliding rod 503 is arranged between the two cloth pressing rod connecting blocks 5, the slider 504 is slidingly arranged on the cutting knife sliding rod 503, and the cutting knife 505 is arranged below the slider 504.

[0062] In the embodiment, the cloth spreading machine further comprises a controller, the controller is used for controlling the telescoping of the telescopic rod 7, the opening and closing of the clamping jaw 8 and the movement of the slider 504.

[0063] In this embodiment, the spreading structure body 2 is driven by the electric roller to translate on the workbench 1, and the controller obtains the coordinates of the termination position of the spreading structure body 2 during spreading according to the length of the spread cloth and the elastic deformation amount of the cloth with different elasticity during spreading, and controls the movement of the electric roller according to the coordinates.

[0064] In this embodiment, the fixing mechanism comprises two symmetrical fixing frame supports 9 arranged on the workbench 1, vertical slides are arranged on the inner sides of the two fixing frame supports 9, sliding blocks 901 are arranged in the slides and can slide up and down along the slides, a lifting rod 10 is connected to the two sliding blocks 901, and a fixing plate is connected to the lifting rod 10 and used to press the end of the cloth.

[0065] The structure and working process of the cloth spreading machine are described below with a specific example.

[0066] The cloth spreading machine comprises a workbench 1, a spreading structure body 2, a hopper 3, cloth conveying rollers 4, cloth pressing rod connecting blocks 5, a cloth pressing bottom sheet 501, an upper pressing sheet 502, a cutting knife sliding rod 503, a sliding device 504, a cutting knife 505, fixing frame supports 9, a lifting rod 10, a supporting arm 11, a fixing frame 12, a clamping jaw 8, a tension sensor 601, a spring 603, and a damping rod 602.

[0067] The spreading structure body 2 is movably arranged on the side edge of the workbench 1 through an electric roller, the hopper 3 is arranged above the spreading structure body 2, three cloth conveying rollers 4 are arranged in sequence on the side of the hopper 3 close to the fixing mechanism, the middle one is lower than the two on the sides, and the one closest to the fixing mechanism is lower than the one closest to the hopper 3; the lower part of the spreading structure body 2 is a hollow structure; a cloth pressing rod connecting block 5 is arranged on each side of the cloth outlet of the spreading structure body 2, two horizontal rods are connected between the cloth pressing rod connecting blocks 5 through an electric control rotating shaft, the cloth pressing bottom sheet 501 is connected to the horizontal rod on the lower side, and the upper pressing sheet 502 is connected to the horizontal rod on the upper side; the cloth coming out of the cloth conveying rollers 4 passes between the cloth pressing bottom sheet 501 and the upper pressing sheet 502; the cutting knife sliding rod 503 is arranged between the two cloth pressing rod connecting blocks 5 and above the horizontal rods, the electric sliding device 504 is slidably arranged on the cutting knife sliding rod 503, and the cutting knife 505 is arranged below the sliding device 504; after the cloth is spread in place, the upper pressing sheet 502 presses the cloth on the cloth pressing bottom sheet 501, and the cutting knife 505 moves on the cutting knife sliding rod 503 under the drive of the sliding device 504 to cut the cloth.

[0068] A fixed frame support 9 is arranged on each side of the workbench away from the spreading structure body 2, a slide is formed on the inner side of the fixed frame support 9, and an electrically controlled sliding block 901 is arranged in the slide, a lifting rod 10 is arranged between the sliding blocks 901, the two ends of the lifting rod 10 are connected to one end of a support arm 11, and the other end of the support arm 11 is connected to a fixed frame 12; the fixed frame 12 is used to press the end of the cloth when the spreading structure body 2 with the cloth is delivered close to the fixed frame 12, the spreading structure body 2 retreats, and the cloth is spread. After cutting, the fixed frame 12 presses and fixes the spread cloth. According to the increase of the cloth thickness, the entire fixed frame 12 can be adaptively raised for pressing and fixing under the action of the sliding blocks 901 and the lifting rod 10.

[0069] The translation rod 6 is movably arranged on the cloth pressing rod connecting block 5, the tail end of the translation rod 6 is located inside the cloth pressing rod connecting block 5, and a pulling force sensor 601 is connected to the tail end; the rear side of the pulling force sensor 601 is connected to the head end of a damping rod 602, and the tail end of the damping rod 602 is connected to the rear wall of the cloth pressing rod connecting block 5; the damping rod 602 is sleeved with a spring 603, and the head end of the spring 603 is connected to the rear side of the pulling force sensor 601, and the tail end is connected to the rear wall of the cloth pressing rod connecting block 5. The spring 603 has no elastic deformation in the non-working state.

[0070] The head end of the translation rod 6 is perpendicularly connected to the tail end of the telescopic rod 7 on the same horizontal plane, the telescopic end of the telescopic rod 7 is connected to a clamping jaw 8, and the clamping jaw 8 is an electromagnetic clamping jaw; under the condition of being electrified, one piece of the electromagnetic clamping jaw has magnetism, so that the two pieces of the electromagnetic clamping jaw can be attracted to each other to realize the clamping effect.

[0071] The spreading structure body 2 is driven by an electric control roller to translate on the workbench, the electric control roller is driven and controlled by a controller in the control part, the length of the cloth to be spread is determined, the elastic deformation amount of the cloth during the spreading process is combined, the termination position of the spreading structure body 2 during the spreading is obtained, the position coordinate is input to the controller, the spreading structure body 2 stops spreading when it reaches the position, and the cloth is cut and restored to the original state. At this time, it is just the length of the cloth to be spread.

[0072] When the spreading structure main body 2 moves to the termination position, before cutting, the controller controls the telescopic rod 7 to drive the electromagnetic clamp jaw to move to the edge of the cloth, and then the electromagnetic clamp jaw clamps the edge of the cloth; then the controller drives the slider 504 to drive the cutting knife 505 to cut the cloth; when the cutting of the cloth is completed, the cloth will move to the right side due to the elastic deformation, and in this moving process, the cloth is always clamped by the electromagnetic clamp jaw, and the buffer structure composed of the spring 603 and the damping rod 602 will exert force in the opposite direction, so that the cloth can slowly recover to the original state, ensuring the flatness of the surface of the cloth; when the pulling force sensor 601 detects that the force to the right side is no longer increasing, it means that the cloth has recovered to the original state, at this time the controller drives the electromagnetic clamp jaw to open, and the cloth spreading is completed; and the electromagnetic clamp jaw, the telescopic rod 7 and the translation rod 6 slowly recover to the original position under the action of the damping rod 602 and the spring 603, preparing for the next operation.

[0073] In the embodiment, the buffer structure is arranged, and the buffer structure can clamp and fix the edge of the cloth after the cloth is spread and before the cloth is cut. When the cloth is cut, the cloth will not rebound quickly and wrinkle due to the control of the buffer structure, but will slowly recover to the original state from the elastic deformation under the action of the buffer structure, and the cloth can be kept flat during the process. In addition, the termination position of the cloth spreading structure is set as the required cloth length plus the elastic deformation amount of the cloth with different elasticity. After the cloth is cut at the termination position and recovers to the original state, the length of the cloth is exactly the required length.

[0074] The above description is only a description of the preferred embodiment of the present application, and does not limit the scope of the present application. Any modification or change made by a person skilled in the art according to the above disclosure is within the protection scope of the claims.

Claims

1. A cloth spreading machine for elastic cloth, characterized by comprising: The utility model relates to a cloth cutting device, including: Workbench; Spread structure, the spread structure sets up at one side of workbench, can drive cloth to the other side of workbench movement; Fixing mechanism, set up at the other side of workbench, for fixing the end of cloth that spread structure delivers; Buffer structure, set up at the cloth export of spread structure; The buffer structure includes buffer unit and clamping unit;Buffer unit provides the force in the opposite direction with cloth rebound direction after cloth cutting and senses the tension of cloth;Clamping unit clamps the edge of cloth before cutting cloth after the end of cloth is fixed in fixing mechanism, and releases the cloth that clamps after buffer unit senses the cloth back to normal; The buffer unit and clamping unit are two, two buffer units are symmetrically set up at the both sides of cloth export of spread structure, and clamping unit is connected with buffer unit; Buffer unit includes: tension sensor, spring, damping rod and translation rod; Tension sensor sets up between damping rod and translation rod, and the other end of damping rod is in abutment with spread structure, and the other end of translation rod is connected to clamping unit; Spring is sleeved on the outer periphery of damping rod; Clamping unit includes: telescopic rod and clamping jaw; One end of telescopic rod is connected to translation rod, and the other end is connected to clamping jaw; Telescopic rod can be telescopic along the width direction of cloth, and clamping jaw is used for clamping the edge of cloth.

2. The fabric spreading machine for elastic fabric according to claim 1, wherein The spread structure includes: Spread structure main body; Two cloth pressing rod connecting blocks are symmetrically arranged at both sides of the cloth outlet of the spread structure main body; An upper pressing piece and a cloth pressing bottom piece are arranged between the two cloth pressing rod connecting blocks, and the upper pressing piece is located above the cloth pressing bottom piece with a gap for passing through the cloth between the two pieces; The buffer unit is arranged on the cloth pressing rod connecting block.

3. The fabric spreading machine for elastic fabric according to claim 2, wherein A cutting unit is arranged on the spread structure main body, and the cutting unit includes a cutting knife sliding rod, a slider, and a cutting knife. The cutting knife sliding rod is arranged between the two cloth pressing rod connecting blocks, the slider is slidingly arranged on the cutting knife sliding rod, and the cutting knife is arranged below the slider.

4. The fabric spreading machine for elastic fabric according to claim 3, wherein The cloth spreading machine further includes a controller for controlling the telescopic movement of the telescopic rod, the opening and closing of the clamping jaw, and the movement of the slider.

5. The fabric spreading machine for elastic fabric according to claim 4, wherein The spread structure main body is driven by an electric control roller to translate on the workbench, the controller obtains the coordinates of the termination position of the spread structure main body during spreading according to the required length of the cloth and the elastic deformation amount of different elastic cloths during spreading, and controls the movement of the electric control roller according to the coordinates.

6. The fabric spreading machine for elastic fabric according to claim 2, wherein The cloth pressing rod connecting block has a receiving cavity inside, the tension sensor, the spring, and the damping rod are located in the receiving cavity, and one end of the damping rod is in abutment with the rear wall of the cloth pressing rod connecting block. The outer side wall of the cloth pressing rod connecting block has a through hole, one end of the translation rod connected with the tension sensor is located in the receiving cavity, and the other end penetrates through the through hole and is connected with the telescopic rod.

7. The fabric spreading machine for elastic fabric according to claim 1, wherein The fixing mechanism includes: Two fixed frame supports symmetrically arranged are arranged on the workbench, vertical slides are arranged on the inner sides of the two fixed frame supports; Sliding blocks are arranged in the slides and can slide up and down along the slides; Lifting rods are connected to the two sliding blocks; A fixed plate is connected to the lifting rods, and the fixed plate is used to press the end of the cloth.

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