A cloth cutting device with a positioning mechanism

Abstract

This utility model discloses a lining cutting device with a positioning mechanism, relating to the field of lining cutting technology. It includes a base plate with two symmetrically arranged first mounting plates on one end of the top surface of the base plate. A guide roller is fixed between the opposing surfaces of the two first mounting plates. Limiting plates are symmetrically sleeved at both ends of the guide rollers, and two offset grooves are formed on the opposing surfaces of the limiting plates. This utility model utilizes the cooperation between a rectangular tube on the inner top surface of the gantry frame and two baffles on the inner wall of the rectangular tube. In the non-cutting state, the baffles close under the action of a return spring, covering the blade and facilitating the isolation of the operator's hands from contact with the exposed blade, thus achieving physical protection of the blade when not in operation. Furthermore, through the cooperation of a horizontal plate and a pull rope, when the electric push rod drives the horizontal plate down for cutting, the pull rope pulls the baffles open simultaneously. Ultimately, this solves the problems of exposed blades in existing devices, which easily lead to accidental cuts and dulling of the blades, improving the safety, accuracy, and production efficiency of lining cutting.

Description

Technical Field

[0001] This utility model relates to the field of lining cutting technology, and in particular to a lining cutting device with a positioning mechanism. Background Technology

[0002] In the textile processing industry, such as clothing and home textiles, lining is a key auxiliary material for improving the crispness and shaping effect of fabrics. Its cutting accuracy directly determines the quality of subsequent garment sewing. If the lining size deviation is too large, it will lead to poor fabric fit and misaligned sewing, increasing rework costs. At the same time, the lining cutting efficiency in mass production directly affects the overall production progress, while manual operation is prone to reduced efficiency and accuracy due to fatigue and errors. Therefore, it is necessary to use lining cutting equipment for cutting. Existing equipment often uses exposed blades. When operators are feeding lining fabric, adjusting the cutting position, or cleaning the equipment, their hands frequently need to be close to the cutting area. Due to the lack of physical barriers, exposed blades are prone to accidental slippage of the lining fabric due to operator negligence. Especially during batch cutting operations, operator fatigue further increases the risk of accidental contact, which can affect their health, cause production interruptions, and increase the company's medical and lost-work costs. When not in use, exposed blades are prone to dulling or damage due to collisions and dust accumulation, shortening their service life and increasing equipment maintenance costs. Therefore, improvements are needed to address these issues. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a lining cutting device with a positioning mechanism.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a lining cutting device with a positioning mechanism, comprising a base plate, two first mounting plates symmetrically arranged at one end of the top surface of the base plate, a guide roller fixedly connected between the opposite surfaces of the two first mounting plates, a limit plate symmetrically sleeved at both ends of the guide roller, two sliding grooves offset from each other on the opposite surfaces of the limit plates, a slider movably arranged in the sliding groove, a pressure roller rotatably arranged on the opposite surfaces of the slider, a gantry frame installed in the middle of the top surface of the base plate, an electric push rod installed in the middle of the top surface of the gantry frame, the telescopic end of the electric push rod penetrating the inner top surface of the gantry frame and fixedly connected to a horizontal plate, a blade installed on the bottom surface of the horizontal plate, two second mounting plates symmetrically arranged at the other end of the top surface of the base plate, a take-up roller rotatably installed between the opposite surfaces of the two second mounting plates, a fixing component installed on the take-up roller, and two columns symmetrically fixedly connected between the base plate and the gantry frame and the two second mounting plates.

[0005] Preferably, guide grooves are formed on the opposite surfaces of the two columns, and scale lines are formed on the outer walls of both sides of the two columns in the guide groove section. A movable horizontal plate is movably sleeved on the two columns in the guide groove. A locking bolt is screwed to both ends of the movable horizontal plate, which abuts against the opposite sides of the two columns. Part of the movable horizontal plate is located in the guide groove.

[0006] Preferably, a downward pressure spring is installed on the top surface of the slider and located in the slide groove. A bidirectional lead screw is rotatably installed on the opposite surfaces of the two first mounting plates below the guide roller. Sleeves corresponding to the limiting plates are sleeved on both threaded sections of the bidirectional lead screw. A hand crank is installed on one of the two first mounting plates and coaxially fixed to one end of the bidirectional lead screw.

[0007] Preferably, the fixing component is formed in an I-shaped groove on the outer wall of the take-up roller, a positioning block is engaged in the I-shaped groove, multiple slots are symmetrically formed at both ends of the inner wall of the I-shaped groove, spring blocks corresponding to the slots are installed at both ends of the positioning block, an unlocking groove is formed on the top surface of the positioning block at the spring block, a pull block is movably provided in the unlocking groove, one end of the pull block is fixedly connected to one end of the top surface of the spring block, a block removal groove is formed in the middle of the top surface of the positioning block, and a motor is mounted on one of the two second mounting plates and fixedly connected to the take-up roller coaxially.

[0008] Preferably, a rectangular tube is fixed to the inner top surface of the gantry at the electric push rod. Two baffles are symmetrically and movably arranged on the inner wall of the rectangular tube at the lower end of the blade. A rectangular through groove corresponding to the shape of the baffle is opened on the outer wall of the rectangular tube. Two guide slots are symmetrically arranged on both sides of the rectangular through groove on the outer wall of the rectangular tube.

[0009] Preferably, a return spring is installed inside the guide slot box. One end of the return spring is fixedly connected to the baffle. A pull rope is threaded through the return spring. One end of the pull rope is fixedly connected to the baffle. The other end of the pull rope passes through the outer wall of one end of the guide slot box and the upper end of the inner wall of the rectangular tube and is fixedly connected to the top surface of the horizontal plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model utilizes the cooperation between the rectangular tube on the inner top surface of the gantry and two baffles on the inner wall of the rectangular tube. In the non-cutting state, the baffles close under the action of the return spring, effectively covering the blade and preventing contact between the operator's hands and the exposed blade, thus improving operational safety and achieving physical protection for the blade when not in operation. Furthermore, through the cooperation of the horizontal plate and the pull rope, when the electric actuator lowers the horizontal plate for cutting, the pull rope simultaneously opens the baffles, without affecting the blade cutting action. After cutting is completed, the horizontal plate rises, and the return spring pushes the baffles to close again, continuing to cover the blade. The new design facilitates the linkage between the cutting action and the opening and closing of the baffle, improving the coordination between cutting and protection, and thus enabling dynamic protection. Simultaneously, through the cooperation of guide rollers, pressure rollers, and bidirectional lead screws, the bidirectional lead screws adjust the spacing of the limiting plates to adapt to different widths of lining fabric. The pressure rollers, under the action of the downward pressure springs, press the lining fabric tightly, reducing offset and wrinkles during lining fabric transport, improving cutting accuracy, and thus enabling stable lining fabric transport and precise positioning. Ultimately, this design solves the problems of exposed blades in existing devices, which can easily cause operator injury from accidental contact and blade dulling, improving the safety, accuracy, and production efficiency of lining fabric cutting. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a first-view schematic diagram of the overall structure proposed in this utility model; Figure 2 This is a schematic diagram of the overall structure of the guide roller proposed in this utility model; Figure 3 This is a partial cross-sectional view of the rectangular tube structure proposed in this utility model; Figure 4 This is an enlarged schematic diagram of a portion of the winding roller structure proposed in this utility model; Figure 5 This is an enlarged cross-sectional view of the winding roller proposed in this utility model.

[0012] The numbers in the diagram are: 1. Base plate; 2. Guide roller; 3. Pressure roller; 4. Gantry frame; 5. Electric actuator; 6. Rewind roller; 7. Column; 8. Hand crank; 9. Slider; 10. Limiting plate; 11. Two-way lead screw; 12. Blade; 13. Pull rope; 14. Baffle; 15. Positioning block; 16. Spring catch block. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Example: See Figures 1 to 5This utility model discloses a lining cutting device with a positioning mechanism, comprising a base plate 1. Two first mounting plates are symmetrically arranged on one end of the top surface of the base plate 1. Guide rollers 2 are fixedly connected between the opposing surfaces of the two first mounting plates. Limiting plates 10 are symmetrically sleeved at both ends of the guide rollers 2. Two sliding grooves are offset on the opposing surfaces of the limiting plates 10, and sliders 9 are movably arranged within the sliding grooves. Pressure rollers 3 are rotatably arranged on the opposing surfaces of the sliders 9. A gantry frame 4 is installed in the middle of the top surface of the base plate 1. An electric push rod 5 is installed in the middle of the top surface of the gantry frame 4. The telescopic end of the electric push rod 5 penetrates the inner top surface of the gantry frame 4 and is fixedly connected to a horizontal plate. A blade 12 is installed on the bottom surface of the horizontal plate. Two second mounting plates are symmetrically arranged on the other end of the top surface of the base plate 1. A take-up roller 6 is rotatably mounted between the opposing surfaces of the two mounting plates. A fixing assembly is installed on the take-up roller 6. Two uprights 7 are symmetrically fixed between the base plate 1, the gantry frame 4, and the two second mounting plates. The base plate 1, the first mounting plate, the second mounting plate, the gantry frame 4, and the uprights 7 are made of Q235 steel, which improves the overall structural strength of the device and withstands the pressure during the fabric conveying and cutting process. The shafts of the guide roller 2, the take-up roller 6, the limiting plate 10, the slider 9, and the pressure roller 3 are made of 45# steel. Since the slider 9 needs to rotate to mount the pressure roller 3, the 45# steel material ensures the stability and wear resistance of the rotational support. The outer wall of the shaft of the pressure roller 3 is fitted with nitrile rubber, which increases the friction with the fabric and prevents... The device prevents slippage of the lining and reduces lining damage; the blade 12 is made of high-speed steel, improving cutting sharpness and durability; the electric actuator 5, model DTZ300, provides stable power for cutting; the lining is conveyed by guide roller 2, the lateral displacement of the lining is limited by the limiting plate 10, and the pressure roller 3 presses the lining, which reduces slippage and wrinkles during lining conveying; the gantry frame 4, together with the electric actuator 5 and the blade 12, provides power and structural support for cutting; the winding roller 6 and the fixing components fix the end of the lining; and the column 7 provides the installation foundation for the subsequent positioning structure; the above constitutes the basic framework of the device, providing core structural support for the positioning, conveying, cutting, and winding of the lining; the two columns 7 are connected... The two uprights 7 have guide grooves on their opposite sides, and scale lines on their outer walls within the guide grooves. A movable horizontal plate is movably connected to each upright 7 at the guide groove. A locking bolt is screwed to each end of the movable horizontal plate, abutting the back of the two uprights 7. The movable horizontal plate is located within the guide groove. The uprights 7 are made of Q235 steel to ensure the stability of the guide groove structure and to withstand the pressure of the movable horizontal plate. The movable horizontal plate can slide along the guide groove of the uprights 7, and its height can be precisely adjusted using the scale lines. The locking bolts can fix the position of the movable horizontal plate, ensuring that it stably presses down on the lining, keeping the lining flat. These features improve the flatness of the lining during cutting and provide a longitudinal positioning reference for precise cutting.A downward pressure spring is installed on the top surface of slider 9, located within the slide groove. A bidirectional lead screw 11 is rotatably mounted on the opposing surfaces of the two first mounting plates below the guide roller 2. Each of the two threaded sections of the bidirectional lead screw 11 is fitted with a sliding sleeve corresponding to and fixed to the limiting plate 10. A hand crank 8 is mounted on one of the two first mounting plates, coaxially fixed to one end of the bidirectional lead screw 11. The rotating shafts of the bidirectional lead screw 11, slider 9, and pressure roller 3 are made of 45# steel. Slider 9 is adapted to the rotating mounting requirements of pressure roller 3, possessing good transmission stability and wear resistance, while also stably supporting the downward pressure spring. The outer wall of the rotating shaft of pressure roller 3 is fitted with nitrile rubber, which, together with the downward pressure spring on slider 9, provides continuous pressure to pressure roller 3, enhancing the fit between pressure roller 3 and the lining. Rotating the hand crank 8 drives the bidirectional lead screw 11 to rotate, causing the sliding sleeve to move the limiting plate 10 to adjust the spacing, adapting to linings of different widths. Through the above, the adaptability of the device to linings of different specifications is improved, while the stability of lining conveying is enhanced.

[0015] In this invention, a fixing component is formed in an I-shaped groove on the outer wall of the take-up roller 6. A positioning block 15 is engaged within the I-shaped groove. Multiple slots are symmetrically formed at both ends of the inner wall of the I-shaped groove. Spring blocks 16 corresponding to the slots are installed at both ends of the positioning block 15. An unlocking groove is formed on the top surface of the positioning block 15 at the spring block 16. A pull block is movably provided in the unlocking groove. One end of the pull block is fixedly connected to one end of the top surface of the spring block 16. A block-removing groove is formed in the middle of the top surface of the positioning block 15. A motor coaxially fixedly connected to the take-up roller 6 is installed on one of the two second mounting plates. The take-up roller 6 is made of 45# steel to ensure structural stability during rotation. The positioning block 15 and the spring blocks 16 are made of nylon to reduce friction with the take-up roller 6. Friction loss is reduced, and the material is lightweight and corrosion-resistant. The motor model is Y80M1-2, which provides stable power to the winding roller 6, enabling automatic conveying and winding of the lining. After the positioning block 15 is inserted into the I-beam groove, the spring clip 16 can be embedded in the groove to quickly fix the end of the lining. Pulling the pull block can unlock the positioning block 15, making it easy to replace the lining. The above features simplify the lining fixing and replacement process and improve conveying efficiency. A rectangular cylinder is fixed to the top surface of the gantry frame 4 at the electric push rod 5. Two baffles 14 are symmetrically and movably arranged on the inner wall of the rectangular cylinder at the lower end of the blade 12. A rectangular through groove corresponding to the shape of the baffle 14 is opened on the outer wall of the rectangular cylinder. Two guide boxes are symmetrically arranged on both sides of the rectangular through groove on the outer wall of the rectangular cylinder. Rectangular cylinder and guide boxes The device is constructed from 6061 aluminum alloy, ensuring structural strength while reducing weight for easy installation and handling. The blade 12 is made of high-speed steel to ensure cutting performance. A rectangular cylinder provides installation space for the blade 12 and the baffle 14, which can slide along the rectangular groove. The guide box provides a base for the subsequent reset structure and can shield the blade 12 when not cutting. These features provide a protective structure for the blade 12, reducing the risk of accidental contact by operators and eliminating the safety hazard of exposed blades in traditional devices. A reset spring is installed inside the guide box, with one end fixed to the baffle 14. A pull rope 13 runs through the reset spring, with one end also fixed to the baffle 14. The other end of the baffle 14 passes through the outer wall of one end of the guide box and the upper end of the inner wall of the rectangular tube and is fixed to the top surface of the horizontal plate. The return spring is made of spring steel and has good elastic recovery to ensure stable return of the baffle 14. The pull rope 13 is made of polyester and has high tensile strength and is not easy to break, ensuring stable linkage of the baffle 14. The electric push rod 5 is a DTZ300. When the horizontal plate is lowered, the pull rope 13 pulls the baffle 14 to open, which does not affect the cutting of the blade 12. After cutting, the horizontal plate rises and the return spring pushes the baffle 14 to close, realizing dynamic protection of the blade 12. Through the above, the linkage between the cutting action and the protection action is realized, ensuring no obstruction during cutting and full protection when not cutting, further improving the safety of operation.

[0016] Working principle: When using this utility model, the lining fabric is first fed and positioned. According to the width of the lining fabric to be cut, the hand crank 8 on the first mounting plate is rotated, which drives the bidirectional lead screw 11 to rotate. The sliding sleeve on the bidirectional lead screw 11 then drives the limiting plate 10 to move axially along the guide roller 2 until the distance between the two limiting plates 10 matches the width of the lining fabric, thus completing the lateral positioning of the lining fabric. Then, the lining fabric at one end of the lining fabric roll is led out and passed between the guide roller 2 and the pressure roller 3. The pressure roller 3 presses the lining fabric under the elastic force of the spring pressing down on the top surface of the slider 9 to prevent the lining fabric from slipping or wrinkling during transport. At the same time, the other end of the lining fabric is fixed to the fixing component of the take-up roller 6. The positioning block 15 is inserted into the I-shaped groove of the take-up roller 6, and the spring clips 16 at both ends of the positioning block 15 are embedded in the inner wall of the I-shaped groove. The slot is used to fix the end of the lining fabric to the take-up roller 6, completing the material loading preparation; then, the movable horizontal plate on the column 7 is adjusted according to the cutting requirements. The movable horizontal plate is slid along the guide groove of the column 7. The height of the movable horizontal plate is confirmed by referring to the scale line on the outer wall of the column 7, so that the bottom surface of the movable horizontal plate can be in contact with the top surface of the lining fabric conveyed by the guide roller 2. After determining the height, the locking bolts at both ends of the movable horizontal plate are tightened so that it abuts against the outer wall of the column 7 for friction locking. At this time, the movable horizontal plate presses the lining fabric downward to ensure that the lining fabric extending from the guide roller 2 is flush with the lining fabric in the cutting area, avoiding the slight warping of the lining fabric during the conveying process from affecting the cutting accuracy. At the same time, the movable horizontal plate serves as the positioning reference for the longitudinal cutting of the lining fabric; after starting the equipment, the motor on the second mounting plate that is coaxially fixed to the take-up roller 6 is started first. The motor moves, causing the take-up roller 6 to rotate a short distance, pulling the lining fabric on the lining roll roller towards the cutting area a short distance. After the end of the lining fabric passes the preset distance of the movable cross plate, the motor stops, and the take-up roller 6 stops rotating. Then, the electric push rod 5 starts and pushes the cross plate downward. During the descent of the cross plate, the pull rope 13 fixed to its top surface pulls the baffle 14 inside the rectangular tube, causing the baffle 14 to open to both sides along the rectangular through groove, no longer obstructing the blade 12. As the cross plate continues to descend, the vertically set blade 12 contacts the lining fabric and cuts downward along the edge of the movable cross plate, vertically cutting the small section of lining fabric from the middle into two parts, completing the first cut. After the first cut is completed, the electric push rod 5 only drives the cross plate upward a short distance, causing the blade 12 to leave the lining fabric but not return to the rectangular tube. Inside the rectangular tube, the pull rope 13 maintains a certain tension, and the baffle 14 remains open to avoid repeated opening and closing of the baffle 14 during subsequent cutting, which would affect efficiency. Then, the motor starts again, driving the take-up roller 6 to continue rotating for a distance, pulling the subsequent lining fabric to the cutting area. After being transported to the preset length, the motor stops again, and the take-up roller 6 stops rotating. Then, the electric push rod 5 pushes the horizontal plate downward again, driving the blade 12 to complete the second cut. This process is repeated until all the lining fabric to be cut is finished. After the overall cutting is completed, the electric push rod 5 drives the horizontal plate upward back into the rectangular tube, the tension of the pull rope 13 disappears completely, the return spring in the guide box returns to its original deformation, and pushes the baffle 14 to close back to the middle, blocking the blade 12 and preventing the operator from accidentally touching it.The device is now in use.

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lining cutting device with a positioning mechanism, comprising a base plate (1), characterized in that: Two first mounting plates are symmetrically arranged at one end of the top surface of the base plate (1). A guide roller (2) is fixed between the opposite surfaces of the two first mounting plates. Limiting plates (10) are symmetrically sleeved at both ends of the guide roller (2). Two sliding grooves are staggered on the opposite surfaces of the limiting plates (10). A slider (9) is movably arranged in the sliding groove. A pressure roller (3) is rotatably arranged on the opposite surfaces of the slider (9). A gantry frame (4) is installed in the middle of the top surface of the base plate (1). The base plate (1) is equipped with an electric push rod (5), the telescopic end of which penetrates the inner top surface of the gantry frame (4) and is fixedly connected to a horizontal plate. A blade (12) is installed on the bottom surface of the horizontal plate. Two second mounting plates are symmetrically provided on the other end of the top surface of the base plate (1). A take-up roller (6) is rotatably installed between the opposite surfaces of the two second mounting plates. A fixing component is installed on the take-up roller (6). Two columns (7) are symmetrically fixed between the base plate (1) and the gantry frame (4) and the two second mounting plates.

2. The interlining cutting device with a positioning mechanism according to claim 1, characterized in that: Guide grooves are opened on the opposite surfaces of the two columns (7), and scale lines are opened on the outer walls of the two columns (7) on both sides of the guide groove section. A movable horizontal plate is movably sleeved on the two columns (7) at the guide groove. A locking bolt that abuts the opposite back of the two columns (7) is screwed to both ends of the movable horizontal plate. The body of the movable horizontal plate is located in the guide groove.

3. A lining cutting device with a positioning mechanism according to claim 2, characterized in that: The top surface of the slider (9) is equipped with a downward pressure spring located in the groove. The two first mounting plates are rotatably mounted on the opposite surfaces below the guide roller (2). The two threaded sections of the two-way screw (11) are each fitted with a sliding sleeve that is fixedly connected to the limiting plate (10). One of the two first mounting plates is equipped with a hand crank (8) that is coaxially fixed to one end of the two-way screw (11).

4. A lining cutting device with a positioning mechanism according to claim 3, characterized in that: The fixing component is formed in the I-shaped groove on the outer wall of the take-up roller (6). A positioning block (15) is engaged in the I-shaped groove. Multiple slots are symmetrically formed at both ends of the inner wall of the I-shaped groove. Spring blocks (16) corresponding to the slots are installed at both ends of the positioning block (15). An unlocking groove is formed on the top surface of the positioning block (15) at the spring block (16). A pull block is movably provided in the unlocking groove. One end of the pull block is fixedly connected to one end of the top surface of the spring block (16). A block-removing groove is formed in the middle of the top surface of the positioning block (15). A motor is installed on one of the two second mounting plates and is coaxially fixedly connected to the take-up roller (6).

5. A lining cutting device with a positioning mechanism according to claim 4, characterized in that: A rectangular tube is fixed to the top surface of the gantry frame (4) at the electric push rod (5). Two baffles (14) are symmetrically and movably provided on the inner wall of the rectangular tube at the lower end of the blade (12). A rectangular through groove corresponding to the shape of the baffle (14) is opened on the outer wall of the rectangular tube. Two guide slots are symmetrically provided on both sides of the rectangular through groove on the outer wall of the rectangular tube.

6. A lining cutting device with a positioning mechanism according to claim 5, characterized in that: A reset spring is installed inside the guide box. One end of the reset spring is fixedly connected to the baffle (14). A pull rope (13) is threaded through the reset spring. One end of the pull rope (13) is fixedly connected to the baffle (14). The other end of the pull rope (13) passes through the outer wall of one end of the guide box and the upper end of the inner wall of the rectangular tube and is fixedly connected to the top surface of the horizontal plate.

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