A trimming device for producing a woven fabric

Abstract

The utility model discloses an edge cutting device for weaving cloth fabric production is applied to weaving cloth edge cutting technical field, including conveying part, and the frame connection of edge trimmer, including conveying board no.

Description

Technical Field

[0001] This utility model relates to the field of woven fabric edge trimming technology, specifically an edge trimming device for woven fabric production. Background Technology

[0002] Woven fabric refers to fabric made of two or more sets of knitting threads interwoven perpendicularly at right angles. The warp and weft threads of woven fabric interlock with each other. Once the edge is cut, the exposed threads lose the restraint of the adjacent threads and can easily slip out one by one along the cut direction, forming rough edges and frayed edges, which seriously affect the appearance, durability and subsequent processing of the product.

[0003] Woven fabrics made of synthetic fibers such as polyester, nylon, and polypropylene have good thermoplasticity, allowing for edge sealing using a hot cutter while simultaneously cutting the edges. However, woven fabrics like canvas and denim, which lack thermoplasticity, cannot be edge-sealed using a hot cutter.

[0004] Existing methods for cutting woven fabrics that cannot be heat-sealed typically employ high-precision cutting blades to reduce edge burrs, but these blades have short lifespans and are expensive. Utility Model Content

[0005] The purpose of this invention is to provide a cutting device for woven fabric production to address the aforementioned shortcomings in the prior art. To achieve the above objectives, this utility model provides the following technical solution: a cutting device for woven fabric production, comprising a conveying section connected to the frame of a cutting machine, including a first conveyor plate and a second conveyor plate with a gap between them; an impregnation section located at the gap between the first and second conveyor plates, including a cylinder and a porous absorbent layer, the cylinder connected to the frame having a cavity inside and an overflow port extending through its side wall, the overflow port being covered by the porous absorbent layer, a pump connected to one side of the cylinder for sequentially pressing an external curing agent into the cavity and the porous absorbent layer, the highest point of the porous absorbent layer being higher than the conveying surface of the first conveyor plate; a drying section connected to the frame, including a resistance wire located above the second conveyor plate, the resistance wire being energized to heat and cure the curing agent on the woven fabric output from the impregnation section; and a pressure plate connected to the frame, with a gap between the pressure plate and the first conveyor plate, the pressure plate squeezing the porous absorbent layer below to cause deformation.

[0006] Preferably, the cylinder has a positioning groove, an overflow port connecting the cavity and the outside is provided in the positioning groove, and a porous water-absorbing layer is connected in the positioning groove.

[0007] Preferably, the cylinder has an overflow port that connects the cavity to the outside through the circumference. The outer side of the cylinder is fitted with a porous absorbent layer. The cylinder and the porous absorbent layer are limited by slots and ridges to rotate synchronously. The cylinder and the output shaft of the motor are fixed. The motor base is mounted on the frame. The motor is electrically connected to the mains power.

[0008] Preferably, the first conveyor plate and the frame are detachably connected. The first conveyor plate is located on the input end side of the immersion section. The second conveyor plate has perforations. The flexible pad is attached to the hole wall of the second conveyor plate through point / line contact. A bottom block is vertically slidably connected to the second conveyor plate. When the bottom block moves to the end point of the sliding path, the bottom block contacts the flexible pad and supports the flexible pad.

[0009] Preferably, the second conveyor plate and the bottom block are provided with pin holes, into which pins can be inserted to fix the second conveyor plate and the bottom block. When the pins are inserted, the flexible pads are attached to the bottom block.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. Simple installation: simply connect the entire device to the frame of the edge trimming machine using threaded fasteners.

[0012] 2. High edge sealing efficiency, especially suitable for woven fabrics that cannot be heat-sealed.

[0013] 3. Easy to clean: The flexible pad has a working state and a cleaning state, which reduces the amount of excess curing agent that is solidified inside the device under the drying effect, and reduces the probability of the woven fabric being pulled out by excess drying curing agent and developing burrs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a structural diagram of the device.

[0016] Figure 2 This is a schematic diagram showing the location of the drying section.

[0017] Figure 3 This is a schematic diagram showing the installation location of the base block.

[0018] Figure 4 This is a diagram of the internal structure of the conveying section.

[0019] Figure 5 This is a side view of the impregnated part.

[0020] Figure 6 for Figure 5 Enlarged view of section A.

[0021] Figure 7 This is a diagram showing the state of the porous absorbent layer under pressure from a pressure plate.

[0022] Figure 8 This is a structural diagram of the impregnation section.

[0023] Figure 9 Another structural diagram of the impregnation section

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Conveying section; 11. Conveying plate one; 12. Conveying plate two; 13. Flexible pad; 14. Bottom block; 20. Impregnation section; 21. Cylinder; 22. Porous absorbent layer; 30. Drying section; 40. Pressure plate. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] Example

[0028] This device is used in the subsequent process of the woven fabric edge trimming machine. It needs to be set between the edge trimming machine and the winding machine to chemically seal the edges of woven fabrics that cannot be heat-sealed. Then the winding machine will wind up the chemically sealed woven fabric.

[0029] The edge trimmer and winding machine are existing technologies, and their improvements to this device only serve to complement the process, without making any changes themselves, so they will not be elaborated upon.

[0030] In this embodiment, the chemical edge sealing process refers to impregnating and curing the edges of the cut industrial textiles. Commonly used curing agents include polyurethane emulsions and modified starch pastes.

[0031] like Figures 1-9 This device mainly includes a conveying section 10, an impregnation section 20, a drying section 30, and a pressure plate 40.

[0032] The conveying section 10 is designed to be at the same height as the worktable of the edge trimming machine, so as to smoothly pull the woven fabric from the worktable of the edge trimming machine into the conveying section 10 under the pulling action of the winding machine.

[0033] The impregnation section 20 is located inside the opening reserved in the conveying section 10 and is used to impregnate the edge of the woven fabric that has passed through the opening with a curing agent.

[0034] The drying section 30 is located on the output side of the opening and is used to heat the edge of the impregnated woven fabric. The heat acts as a catalyst to dry the originally liquid curing agent, which binds the warp and weft threads of the woven fabric impregnated with the curing agent together, preventing the warp and weft threads from pilling. At the same time, it can also prevent the woven fabric from dragging too long a mark on the conveying section 10 with the undried curing agent, which would make subsequent cleaning difficult.

[0035] The gap between the pressure plate 40 connected to the edge trimming machine frame is located above the conveying section 10. The woven fabric moves in the gap space formed by the conveying section 10 and the pressure plate 40. When the woven fabric moves between the impregnation section 20 and the pressure plate 40, the impregnation section 20 and the pressure plate 40 apply pressure from both the bottom and top to impregnate the curing agent on the impregnation section 20 onto the fabric.

[0036] The conveying unit 10 includes a first conveyor plate 11, a second conveyor plate 12, a flexible pad 13, and a base block 14. The first conveyor plate 11, the second conveyor plate 12, and the frame are assembled using threaded fasteners, with a gap between them to facilitate the installation of the impregnation part 20. A rectangular perforation is made in the second conveyor plate 12. One corner or one side of the second conveyor plate 12 is glued to the flexible pad 13. The remaining parts of the flexible pad 13 are not connected to the inner wall of the perforation in the second conveyor plate 12. If there is no obstruction below the perforation, the flexible pad 13 will sag with the connection point with the second conveyor plate 12 as the base point. The base block 14 is slidably connected to the second conveyor plate 12 along the Z-axis. Pin holes are made in the second conveyor plate 12 and the base block 14. When it is necessary to fix the position of the base block 14, a pin is inserted into the pin hole to fix the base block 14 and the second conveyor plate 12.

[0037] The usage of base block 14 can be divided into two categories:

[0038] Firstly, the bottom block 14 serves to support the flexible pad 13. At this time, the pin is inserted into the pin hole, and the bottom block 14 is positioned relatively high. The woven fabric can then move normally on the conveyor plate 12 without sagging.

[0039] Secondly, the bottom block 14 does not support the flexible pad 13. At this time, one side of the flexible pad 13 droops, and the slider on the bottom block 14 is at its lowest point in the groove of the second conveyor plate 12. The groove's limiting effect on the slider prevents the bottom block 14 from falling off the second conveyor plate 12. The pin holes on the second conveyor plate 12 and the bottom block 14 are misaligned. At this point, the entire device stops working, and the operator manually bends the flexible pad 13 and peels off the hardener adhering to its surface.

[0040] Preferably, in order to improve the efficiency of the operator in removing the solidified curing agent, polyethylene wax or polypropylene wax can be applied to the surface of the flexible pad 13 to improve the smoothness and abrasion resistance of the flexible pad 13.

[0041] The slider has an I-shaped cross-section, with the narrow middle section located in the groove and the wide two sides located on the outer walls of the groove to limit the slider. This structure is common and will not be described in detail, and is not shown in the figure.

[0042] The impregnation section 20 includes a cylinder 21 and a porous absorbent layer 22. The cylinder 21 has a hollow structure and one end is open. It is connected to a connector and a pipeline. The pipeline, the box containing the curing agent, and the pump are connected. The pump, which is connected to the mains power, draws the curing agent out of the box and presses it into the cylinder 21 under control.

[0043] In the first case of this embodiment: a plurality of overflow ports are provided on the side wall of the cylinder 21, and a porous water-absorbing layer 22 is sleeved on the outer side of the side wall of the cylinder 21. The porous water-absorbing layer 22 can receive the curing agent flowing out of the overflow port and keep it in the layer. When the porous water-absorbing layer 22 is subjected to a certain pressure, the porous water-absorbing layer 22 will squeeze out the curing agent kept inside.

[0044] The joint used to connect the pipe and the cylinder 21 is a rotary joint, which means that the cylinder 21 and the pipe can rotate relative to each other under the structure of the rotary joint. The rotary joint is existing technology and will not be described in detail.

[0045] Furthermore, the non-open end of the cylinder 21 rotates synchronously with the output shaft of the motor. After the motor is connected to the mains power, the output shaft of the motor drives the cylinder 21 and the porous absorbent layer 22 to rotate synchronously at low speed, so as to drive the porous absorbent layer 22 to contact the pressure plate 40 in sequence, so that the curing agent held in the porous absorbent layer 22 is evenly squeezed out.

[0046] Furthermore, a slot is provided on the cylinder 21, and a retaining edge is bonded inside the porous absorbent layer 22. The slot and the retaining edge engage with each other to ensure that the cylinder 21 and the porous absorbent layer 22 can rotate synchronously. The rotational stability depends on the assembly depth of the slot and the retaining edge, as well as the speed of the motor.

[0047] Preferably, a limiting plate is fixed on one end face of the cylinder 21, and during installation, one end face of the porous absorbent layer 22 is made to contact the limiting plate to ensure that the cylinder 21 and the porous absorbent layer 22 are installed in place.

[0048] In the second case of this embodiment, a positioning groove is provided on the cylinder 21, and a porous absorbent layer 22 is attached to a fixed point in the groove. An overflow port communicating with the inside of the cylinder 21 is provided on the side wall of the positioning groove. When in use, the curing liquid inside the cylinder 21 can enter the porous absorbent layer 22 through the overflow port. When the porous absorbent layer 22 is squeezed to a certain extent, the curing liquid will be discharged.

[0049] In both of the above cases, the porous absorbent layer 22 can be made of sponge.

[0050] It should be noted that the cylinder 21 is made of low-cost plastic parts, and if the hardener is found to have solidified unexpectedly and affected its use, it can be replaced directly.

[0051] The drying section 30 is directly mounted on the frame as an existing component. The resistance wire inside the drying section 30 is located above the flexible pad 13, with a certain amount of heat dissipation space between them. The woven fabric output from the edge trimming machine worktable first enters the conveyor plate 11, then contacts the porous absorbent layer 22, then moves onto the flexible pad 13, and is then wound up by the rollers in the winding machine. As this is existing technology, it will not be described in detail.

[0052] The pressure plate 40, which is fixed to the frame, is connected using the simplest threaded fasteners. The lower surface of the pressure plate 40 is parallel to the upper surface of the conveyor plate 11, and the distance between them is slightly greater than the thickness of the woven fabric being sealed. The upper surface of the conveyor plate 11 and the upper surface of the worktable are coplanar. The highest point of the porous absorbent layer 22 is higher than the upper surface of the conveyor plate 11. When installing the pressure plate 40, the position between the pressure plate 40 and the porous absorbent layer 22 needs to be adjusted to ensure that the pressure plate 40 can apply a certain pressure to the porous absorbent layer 22.

[0053] When this device is in use, with the impregnation section 20 as the center, the first step is before the impregnation process of the impregnation section 20, and the second step is after the impregnation process of the impregnation section 20.

[0054] In the first step, the woven fabric output from the edge trimming machine is manually pulled into the conveyor plate 11 and then enters the space between the porous absorbent layer 22 and the pressure plate 40. The porous absorbent layer 22 is pressurized and works with the pump to squeeze out the curing agent in the porous absorbent layer 22 and overflow it to the edge of the woven fabric in an impregnating manner, thus wrapping the edge.

[0055] In step two, the edge of the impregnated woven fabric is pulled and moved between the drying section 30 and the flexible pad 13. The drying section 30 is energized, and the electrical charge is concentrated on the resistance wire to generate heat, drying the curing agent to the required temperature.

[0056] The operating temperature of the drying section 30 needs to be adjusted accordingly depending on the type of curing agent used, so that the curing agent can be catalyzed and solidified at the specified temperature.

[0057] After the edges of the woven fabric have been sealed in steps one and two, the operator can then connect it to the winding machine to wind the woven fabric normally.

[0058] The advantages of this device are:

[0059] 1. Installation is simple; the entire device can be connected to the frame using threaded fasteners.

[0060] 2. High edge sealing efficiency, especially suitable for woven fabrics that cannot be heat-sealed.

[0061] 3. Easy to clean: The flexible pad has 13 working and cleaning states, which reduces the amount of excess curing agent that is solidified inside the device under the action of the drying section, and reduces the probability of the woven fabric being pulled out by excess drying curing agent and developing burrs.

[0062] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cutting device for producing woven fabrics, characterized in that, include: The conveying section (10) is connected to the frame of the edge trimming machine and includes a first conveying plate (11) and a second conveying plate (12) with a gap between them; The impregnation section (20) is located at the interval between the first conveyor plate (11) and the second conveyor plate (12), and includes a cylinder (21) and a porous water-absorbing layer (22). The cylinder (21) connected to the frame has a cavity inside, and an overflow port is opened through the side wall. The overflow port is attached to the porous water-absorbing layer (22). A pump is connected to one side of the cylinder (21) to press the external curing agent into the cavity and the porous water-absorbing layer (22) in sequence. The highest point of the porous water-absorbing layer (22) is higher than the transmission surface of the first conveyor plate (11). The drying section (30) is connected to the frame and includes a resistance wire located above the second conveyor plate (12). The resistance wire is energized to heat and cure the curing agent on the woven fabric output from the impregnation section (20). The pressure plate (40) is connected to the frame. A gap is maintained between the pressure plate (40) and the conveyor plate (11). The pressure plate (40) squeezes the porous absorbent layer (22) below to produce deformation.

2. The edge-cutting device for woven fabric production according to claim 1, characterized in that, The cylinder (21) is provided with a positioning groove, and an overflow port connecting the cavity and the outside is provided in the positioning groove. A porous water-absorbing layer (22) is connected in the positioning groove.

3. The edge-cutting device for woven fabric production according to claim 1, characterized in that, The cylinder (21) has an overflow port that connects the cavity to the outside through its periphery. A porous water-absorbing layer (22) is fitted on the outside of the cylinder (21). The cylinder (21) and the porous water-absorbing layer (22) are limited by slots and ridges to rotate synchronously. The cylinder (21) and the output shaft of the motor are fixed. The motor base is mounted on the frame. The motor is electrically connected to the mains power.

4. The edge-cutting device for woven fabric production according to claim 1, characterized in that, The first conveyor plate (11) and the frame are detachably connected. The first conveyor plate (11) is located on the input end side of the immersion section (20). The second conveyor plate (12) has a perforation. The flexible pad (13) is attached to the hole wall of the second conveyor plate (12) by point / line contact. The second conveyor plate (12) has a bottom block (14) vertically slidably connected to it. When the bottom block (14) moves up to the end of the sliding path, the bottom block (14) contacts the flexible pad (13) and supports the flexible pad (13).

5. The edge-cutting device for woven fabric production according to claim 4, characterized in that, The conveyor plate 2 (12) and the bottom block (14) are provided with pin holes. Pins can be inserted into the pin holes to fix the conveyor plate 2 (12) and the bottom block (14). When the pin is inserted, the flexible pad (13) is attached to the bottom block (14).

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