Cord fabric cutting device and cord fabric cutting method

Abstract

The invention provides a cord fabric cutting device and a cord fabric cutting method.The cord fabric cutting device comprises a machine body, a conveying mechanism and a cutting mechanism, and the conveying mechanism is movably connected with the machine body and conveys cord fabric in the first direction; the cutting mechanism is located above the conveying mechanism and can rotate relative to the machine body, the cutting mechanism comprises a cutting knife, and when the cutting mechanism swings, the cutting knife is driven to move between an avoiding state for avoiding conveying of the curtain cloth and a cutting state for cutting the curtain cloth; the cutter can move in the second direction forming an included angle with the first direction to cut the curtain cloth when in the cutting state. The curtain cloth cutting device solves the problem that in the prior art, the curtain cloth cutting quality is poor.

Description

Technical Field

[0001] This invention relates to the field of curtain fabric cutting, and more specifically, to a curtain fabric cutting device and a curtain fabric cutting method. Background Technology

[0002] A curtain fabric cutting machine unrolls calendered curtain fabric and cuts it to a specific width and angle using a cutting main unit. The cut fabric is then spliced ​​together by a splicing machine to form a continuous curtain fabric. Finally, a winding device winds the continuous curtain fabric onto a specific fixture for subsequent manufacturing processes. The structure of a curtain fabric cutting machine mainly consists of processes such as curtain unrolling, curtain cutting, curtain splicing, adhesive strip bonding, and curtain winding. Common curtain fabric cutting methods include manual cutting, active diamond-shaped cutter cutting, and passive circular cutter cutting. Manual cutting involves operators using a heated blade or hand-tearing to cut the fabric. This method is labor-intensive and the cutting effect is not guaranteed. It is also difficult to operate manually when the fabric is wide. Active diamond-shaped blade cutting uses a motor to rotate the diamond-shaped blade, which is equipped with a lower blade plate. When cutting the fabric, the lower blade plate is inserted below the fabric, and the motor drives the diamond-shaped blade to rotate along a specific drive guide mechanism to cut a certain width of fabric. This method has a higher probability of cutting the fabric threads, and the lower blade plate of the active diamond-shaped blade may not be able to penetrate below the fabric, thus failing to cut the fabric and affecting the effective number of cuts. Passive disc blade cutting involves a passive disc blade and a lower blade plate squeezing and rolling to cut the fabric. This method requires a special lower blade plate. During fabric conveying, the lower blade plate is prone to squeezing material, making abnormal handling difficult. Furthermore, the squeezing and rolling process is uncontrollable, affecting the effective number of cuts. Summary of the Invention

[0003] The main objective of this invention is to provide a curtain cutting device and a curtain cutting method to solve the problem of poor curtain cutting quality in the prior art.

[0004] To achieve the above objectives, according to one aspect of the present invention, a curtain fabric cutting device is provided, comprising: a body, a conveying mechanism, and a cutting mechanism, wherein the conveying mechanism is movably connected to the body and conveys the curtain fabric along a first direction; the cutting mechanism is located above the conveying mechanism and is rotatably disposed relative to the body, the cutting mechanism including a cutting blade, wherein when the cutting mechanism oscillates, it drives the cutting blade to move between a clearance state for avoiding the conveying of the curtain fabric and a cutting state for cutting the curtain fabric, wherein when the cutting blade is in the cutting state, it can move along a second direction forming an angle with the first direction to cut the curtain fabric.

[0005] Furthermore, the fabric cutting device also includes a roller mechanism, which is rotatably connected to the machine body. The roller mechanism has the ability to swing upward to a supporting position to support the fabric and to swing downward to a retracted position to avoid the fabric conveying. When the cutter is in the cutting state, the roller mechanism is in the supporting position.

[0006] Furthermore, the idler mechanism includes a rotatable movable roller, and when the idler mechanism is in the supported position, the fabric cutting point is located on the side of the movable roller near the starting end of the fabric conveying.

[0007] Furthermore, the cutting mechanism also includes a fixed roller, and the movable roller is located on the swing path of the fixed roller. When the cutting mechanism swings, the fixed roller abuts against the movable roller and drives the movable roller to rotate in the opposite direction to the first direction so that the curtain fabric retracts.

[0008] Furthermore, when the roller mechanism is in the support position, the fabric contacts the movable roller and forms a contact point. The movable roller has a symmetrical plane passing through the contact point and the axis of the movable roller. When the cutter is in the avoidance state, the fixed roller and the cutter are located on the same side of the symmetrical plane.

[0009] Furthermore, the idler mechanism also includes: an idler drive and an idler frame, the idler frame being drivenly connected to the idler drive and rotatably connected to the machine body, the movable roller being rotatably connected to the idler frame, and the rotation axis of the movable roller relative to the idler frame being parallel and spaced apart from the rotation axis of the idler frame relative to the machine body.

[0010] Furthermore, the cutting mechanism includes: a main frame, a swing drive, and a secondary frame. The main frame is rotatably connected to the machine body, and the cutting blade is laterally movable on the main frame. The swing drive is driven to connect to the main frame and drives the main frame to swing the cutting blade. The secondary frame is connected to the main frame and swings synchronously under the drive of the main frame. The end of the secondary frame has a fixed roller for contacting and pressing the upper surface of the fabric.

[0011] Furthermore, the cutting mechanism also includes: a first adjusting bracket, a lifting drive, and a second adjusting bracket. The first adjusting bracket is connected to the main frame and is adjustable in both the longitudinal and transverse directions relative to the main frame. The lifting drive is connected to the first adjusting bracket. The second adjusting bracket is driven to the output end of the lifting drive, and the lifting drive drives the second adjusting bracket to move up and down relative to the first adjusting bracket. The cutting blade is connected to the second adjusting bracket and moves synchronously with it.

[0012] Furthermore, the cutting mechanism also includes a heating component, which is connected to the second adjusting bracket, and the cutting blade is connected to the second adjusting bracket through the heating component.

[0013] Furthermore, there are multiple cutting blades arranged horizontally on the main frame, and during cutting, the movement directions of two adjacent cutting blades are opposite to each other.

[0014] According to another aspect of the present invention, a method for cutting a curtain fabric is provided, employing the above-described curtain fabric cutting device. The method includes: a conveying mechanism conveying the curtain fabric along a first direction, with the cutter in an avoidance state; the conveying mechanism stopping conveying the curtain fabric when it reaches a predetermined position; and a cutting mechanism swinging downwards, the cutter switching to a cutting state, and the cutter moving along a second transverse direction to cut the curtain fabric.

[0015] Furthermore, the fabric cutting method also includes: when the conveying mechanism is conveying the fabric, the roller mechanism is in the retracted position; when the cutting mechanism swings downward, the roller mechanism swings upward to the support position, and the roller mechanism supports the bottom surface of the fabric.

[0016] Furthermore, the curtain cutting method also includes: when the cutting mechanism swings downward and the roller mechanism swings upward, the fixed roller of the cutting mechanism and the movable roller of the roller mechanism clamp the curtain from top to bottom, the fixed roller drives the movable roller to rotate in the opposite direction to the first direction, and causes the curtain to retract, and the curtain is in a relaxed state.

[0017] Furthermore, the curtain cutting method also includes: when the cutter cuts the curtain, the heating component heats the cutter and keeps the temperature of the cutter within a predetermined range; the lifting drive drives the cutter to descend, the cutter penetrates the curtain, and the cutter moves laterally on the main frame to cut the curtain.

[0018] Furthermore, the fabric cutting method also includes: after the fabric is cut, the movable roller of the roller mechanism swings downward, the fixed roller of the cutting mechanism swings downward along with the movable roller, and conveys the cut fabric tail to a specific position; the cutting mechanism swings upward to reset, driving the cutter to switch to the avoidance state.

[0019] By applying the technical solution of this invention, the cutting mechanism is rotatably configured relative to the frame, allowing the cutting blade to move between a state of avoiding the conveying of the curtain fabric and a state of cutting the curtain fabric when the cutting mechanism rotates. This achieves automatic cutting of the curtain fabric by the cutting blade, improving the cutting quality of the curtain fabric. Specifically, when the conveying mechanism conveys the curtain fabric, the cutting blade is in the state of avoiding the curtain fabric. When the conveying mechanism conveys the curtain fabric to a predetermined position and stops conveying, the cutting mechanism drives the cutting blade to rotate to the cutting state. The cutting blade cuts the curtain fabric in a second direction that forms an angle with the conveying direction. In this way, automatic conveying and automatic cutting of the curtain fabric are achieved simultaneously without interference between the two, thus effectively realizing automatic cutting of the curtain fabric, improving the cutting quality of the curtain fabric, and avoiding problems such as easy breakage of connecting lines, fabric extrusion during conveying, and instability in the cutting process. Moreover, it reduces workload and improves cutting efficiency. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 A side view of the fabric cutting device of the present invention is shown when the cutting mechanism is in the avoidance state;

[0022] Figure 2 This shows a front view of the fabric cutting device of the present invention when the cutting mechanism is in the avoidance state;

[0023] Figure 3 A side view of the fabric cutting device of the present invention is shown when the cutting mechanism is in the cutting state;

[0024] Figure 4 This shows a front view of the fabric cutting device when the cutting mechanism of the present invention is in the cutting state;

[0025] Figure 5 A schematic diagram of the cutting mechanism of the present invention is shown;

[0026] Figure 6 The front view shows the cutting blade A, the first adjusting bracket, the lifting drive component, the second adjusting bracket, and the heating assembly;

[0027] Figure 7 It shows Figure 6 Side view;

[0028] Figure 8 The front view shows the cutting blade B, the first adjusting bracket, the lifting drive component, the second adjusting bracket, and the heating assembly;

[0029] Figure 9 It shows Figure 8 Side view;

[0030] Figure 10 The diagram shows the positions of the fixed roller, the movable roller, and the fabric during the fabric conveying and cutting processes.

[0031] The above figures include the following reference numerals:

[0032] 10. Machine body; 20. Conveying mechanism; 21. Conveyor belt drive roller; 30. Cutting mechanism; 31. Main frame; 32. Swing drive component; 33. Sub-frame; 331. Fixed roller; 34. Cutting blade; 35. First adjusting bracket; 36. Lifting drive component; 37. Second adjusting bracket; 38. Heating assembly; 40. Idler roller mechanism; 41. Movable roller; 42. Idler roller drive component; 43. Idler roller frame. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0035] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0036] To address the problem of poor fabric cutting quality in existing technologies, this invention provides a fabric cutting device and a fabric cutting method.

[0037] like Figures 1 to 10 As shown, a curtain fabric cutting device includes: a body 10, a conveying mechanism 20, and a cutting mechanism 30. The conveying mechanism 20 is movably connected to the body 10 and conveys the curtain fabric along a first direction. The cutting mechanism 30 is located above the conveying mechanism 20 and is rotatably arranged relative to the body 10. The cutting mechanism 30 includes a cutting blade 34. When the cutting mechanism 30 rotates, it drives the cutting blade 34 to move between a clearance state that avoids the conveying of the curtain fabric and a cutting state that cuts the curtain fabric. When the cutting blade 34 is in the cutting state, it can move along a second direction that forms an angle with the first direction to cut the curtain fabric.

[0038] In this embodiment, the cutting mechanism 30 is rotatably configured relative to the machine body 10. When the cutting mechanism 30 rotates, it drives the cutting blade 34 to move between a state of avoiding the conveying of the curtain fabric and a state of cutting the curtain fabric. This achieves automatic cutting of the curtain fabric by the cutting blade 34, improving the cutting quality. Specifically, when the conveying mechanism 20 conveys the curtain fabric, the cutting blade 34 is in a state of avoiding the curtain fabric. When the conveying mechanism 20 conveys the curtain fabric to a predetermined position and stops conveying, the cutting mechanism 30 drives the cutting blade 34 to rotate to the cutting state. The cutting blade 34 cuts the curtain fabric in a second direction forming an angle with the conveying direction. Thus, automatic conveying and automatic cutting of the curtain fabric are achieved simultaneously without interference, effectively realizing automatic cutting of the curtain fabric, improving the cutting quality, and avoiding problems such as easy breakage of connecting lines, fabric extrusion during conveying, and instability in the cutting process. Furthermore, it reduces workload and increases cutting efficiency.

[0039] It should be noted that the conveying device in this embodiment includes a conveyor belt device, a conveyor belt drive roller 21, a conveyor belt driven roller, a conveyor belt transition roller, and a conveyor belt drive motor. The conveyor belt drive motor drives the conveyor belt drive roller 21 to rotate and drives the conveyor belt driven roller and the conveyor belt transition roller to rotate, thereby realizing the conveying action of the conveyor belt to meet the conveying requirements of the curtain fabric.

[0040] In this embodiment, the fabric cutting device further includes a roller mechanism 40, which is rotatably connected to the machine body 10. The roller mechanism 40 has the ability to swing upward to a supporting position to support the fabric and downward to a retracted position to avoid the fabric conveying. When the cutter 34 is in the cutting state, the roller mechanism 40 is in the supporting position. Specifically, the roller mechanism 40 is located at the bottom of the machine body 10, while the cutting mechanism 30 is located above the frame. When the conveying mechanism 20 conveys the fabric to a predetermined position and stops conveying, the roller mechanism 40 swings upward to the supporting position, and the cutting mechanism swings downward to the cutting state where the cutter 34 is in the cutting state. In this way, the fabric is located between the roller mechanism 40 and the cutting mechanism 30. The roller mechanism 40 and the cutting mechanism 30 cooperate to fix the position of the fabric, thereby facilitating the cutting of the fabric by the cutter 34 while ensuring the length of the fabric to be cut. When the conveying mechanism 20 conveys the fabric, the roller mechanism 40 is in the retracted position and the cutter 34 is in the avoidance state to avoid the conveying of the fabric.

[0041] In this embodiment, the roller mechanism 40 includes a rotatable movable roller 41. On the one hand, the movable roller 41 can rotate around its own axis, so that when the movable roller 41 supports the curtain, the curtain can move along the surface of the movable roller 41, thereby adjusting the tension of the curtain. When the movable roller 41 rotates towards the starting end of the curtain feeding, the curtain retracts; when the movable roller 41 rotates away from the starting end of the curtain feeding, the curtain is fed forward. On the other hand, the movable roller 41 can swing with the roller mechanism 40, thereby switching between the supporting position and the retracted position. When the roller mechanism 40 is in the support position, the fabric cutting point is located on the side of the movable roller 41 near the starting end of the fabric conveying. That is, when the roller mechanism 40 and the cutting mechanism 30 work together to fix the position of the fabric, the cutter 34 is located on the side of the movable roller 41 near the starting end of the fabric conveying. This allows the fabric to be fixed and supported by the roller mechanism 40 and the cutting mechanism 30 on one side of the cutter 34, and the fabric to be supported by the conveyor belt drive roller 21 on the other side, which facilitates the cutter 34 in cutting the fabric.

[0042] In this embodiment, the cutting mechanism 30 further includes a fixed roller 331, and a movable roller 41 is located on the swing path of the fixed roller 331. When the cutting mechanism 30 swings, the fixed roller 331 abuts against the movable roller 41, driving the movable roller 41 to rotate in the opposite direction to the first direction to retract the curtain fabric. In this embodiment, both the fixed roller 331 and the movable roller 41 are cylindrical, with their axes both horizontal and perpendicular to the conveying direction of the curtain fabric. When the fixed roller 331 and the movable roller 41 abut against each other, the curtain fabric is clamped between them. Specifically, as... Figure 3 , Figure 4 As shown, after the conveying mechanism 20 conveys the fabric to the predetermined position and stops conveying, the idler roller mechanism 40 swings upward to the support position. The movable roller 41 swings upward with the idler roller mechanism 40, and its movement trajectory is from a position close to the starting end of the fabric conveying to a position away from the starting end of the fabric conveying. Thus, the movable roller 41 approaches the fabric until it contacts and supports the fabric. At this time, the movable roller 41 is away from the starting end of the fabric conveying relative to the active roller 21 of the conveyor belt. The fabric between the movable roller 41 and the active roller 21 of the conveyor belt is in a taut state. Then, the cutting mechanism 30 swings downward, and when the fixed... When roller 331 contacts the movable roller 41, the fixed roller 331 continuously approaches the movable roller 41. Driven by the fixed roller 331, the movable roller 41 rotates relative to its own axis, causing the fabric on its surface to move towards the starting end of the fabric conveying process. This causes the fabric between the movable roller 41 and the conveyor belt drive roller 21 to change from a taut state to a slack state. As the cutter 34 cuts the fabric, the connecting lines of the fabric can automatically avoid each other during the cutting process, preventing the fabric from being cut and thus improving the cutting quality of the fabric. After the fabric is cut, the support roller mechanism 40 switches from the supporting position to the retracted position. The movable roller 41 swings downward, and the fixed roller 331 falls a certain distance with the movable roller 41, thus delivering the cut fabric to a specific position and preventing folding and material accumulation during the cutting process, thereby improving the production quality and efficiency of the fabric.

[0043] In this embodiment, when the roller mechanism 40 is in the support position, the fabric contacts the movable roller 41 and forms a contact point. The movable roller 41 has a symmetrical plane passing through the contact point and the axis of the movable roller 41. When the cutter 34 is in the avoidance state, the fixed roller 331 and the cutter 34 are located on the same side of the symmetrical plane, that is, the fixed roller 331 and the cutter 34 move in the same direction during the swinging process of the cutting mechanism 30. Relative to the support position of the movable roller 41, the swing range of the fixed roller 331 and the cutter 34 in this embodiment is located near the starting end of the fabric conveying process. When the cutter 34 switches from the cutting state to the avoidance state, the cutting mechanism 30 swings upward, and the fixed roller 331 and the cutter 34 move towards the position near the starting end of the fabric conveying process. Figure 1 , Figure 2As shown, at this time, the fixed roller 331 and the cutter 34 are located above the plane of symmetry between the contact point and the axis of the movable roller 41.

[0044] In this embodiment, the roller mechanism 40 further includes: a roller drive 42 and a roller frame 43. The roller frame 43 is drivenly connected to the roller drive 42 and rotatably connected to the machine body 10. The movable roller 41 is rotatably connected to the roller frame 43. Specifically, in this embodiment, the idler roller drive 42 is mounted on the machine body 10 and drives the idler roller frame 43 to switch the movable roller 41 between a supported position and a retracted position. One end of the idler roller frame 43 is connected to the movable roller 41, and the other end is connected to the idler roller drive 42. The rotation axis of the idler roller frame 43 relative to the base is located between the movable roller 41 and the idler roller drive 42. The rotation axis of the movable roller 41 relative to the idler roller frame 43 is also the axis of the movable roller 41 itself. The rotation axis of the idler roller frame 43 relative to the machine body 10 extends horizontally and is perpendicular to the conveying direction of the fabric. In this embodiment, the rotation axis of the idler roller relative to the base is the axis of the conveyor belt drive roller 21. Thus, the rotation axis of the movable roller 41 relative to the idler roller frame 43 and the rotation axis of the idler roller frame 43 relative to the machine body 10 are parallel and spaced apart. Optionally, the idler roller drive 42 can be configured as a cylinder, motor, etc.

[0045] In this embodiment, the cutting mechanism 30 includes: a main frame 31, a swing drive 32, and a secondary frame 33. The main frame 31 is rotatably connected to the machine body 10, and the cutting blade 34 is laterally movable on the main frame 31; Figure 5 As shown, the main frame 31 is configured in a gantry shape. A slide rail structure is provided between the main frame 31 and the cutter 34. The slide rail structure extends horizontally perpendicular to the conveying direction of the fabric. A transverse drive component, such as a motor or electric cylinder, is provided at one end of the slide rail structure. The transverse drive component drives the cutter 34 to move horizontally along the extension direction of the slide rail structure to cut the fabric. Figure 1 As shown, the swing drive 32 is driven to the main frame 31. Optionally, the swing drive 32 can be a cylinder. The swing drive 32 is connected to the machine body 10 and drives the main frame 31 to rotate the cutter 34. The sub-frame 33 is connected to the main frame 31 and rotates synchronously under the drive of the main frame 31. The end of the sub-frame 33 has a fixed roller 331 for contacting and pressing the upper surface of the curtain fabric. In this embodiment, the sub-frame 33 does not extend along a fixed straight line, but is bent multiple times to form a semi-enclosed structure with an opening facing downwards, i.e., towards the conveying mechanism 20. The starting end of the sub-frame 33 is connected to the main frame 31, and the end is provided with a fixed roller 331. The cutter 34 is located inside the semi-enclosed structure, and the direction in which the cutter 34 extends from the opening of the semi-enclosed structure is towards the conveying mechanism 20. In this way, when the swing drive 32 drives the main frame 31 to rotate, the sub-frame 33 and the cutter 34 simultaneously move closer to or away from the conveying mechanism 20 to cut or avoid the curtain fabric. Figure 1As shown, the cutting blade 34 is in a avoidance state, and the swing drive 32 drives the main frame 31, the secondary frame 33, and the cutting blade 34 away from the conveying mechanism 20; as Figure 3 As shown, when the cutter 34 is in the cutting state, the main frame 31, the secondary frame 33, and the cutter 34 are in a clearance state relative to the cutter 34 and approach the conveying mechanism 20, so that the fixed roller 331 abuts against the movable roller 41, and the cutter 34 approaches the curtain fabric to cut the curtain fabric. Optionally, the secondary frame 33 can be provided with a separate drive unit, one end of which is fixed to the main frame 31, driving the secondary frame 33 to move relative to the main frame 31, so as to adjust the position of the secondary frame 33 individually.

[0046] like Figures 6 to 9 As shown, in this embodiment, the cutting mechanism 30 further includes: a first adjusting bracket 35, a lifting drive component 36, and a second adjusting bracket 37. The first adjusting bracket 35 is configured as an L-shaped plate with a horizontal plane and a vertical plane. One end of it is connected to the slide rail structure through a connecting bracket. The connecting bracket is provided with an adjustment hole penetrating its vertical plane. By using bolts passing through the adjustment hole and abutting against the vertical plane of the first adjusting bracket 35, the horizontal distance between it and the connecting bracket can be adjusted. Similarly, the vertical distance between the first adjusting bracket 35 and the connecting bracket can be adjusted by bolts and bolt holes. In this way, the first adjusting bracket 35 can be adjusted in both the longitudinal and transverse directions relative to the main frame 31, thereby adjusting the position of the cutter 34 relative to the curtain fabric. This ensures that when the cutter 34 is in the cutting state, it can be positioned between the movable roller 41 and the conveyor belt drive roller 21 in the horizontal direction, and can cut the curtain fabric when the cutter 34 extends in the vertical direction, thereby improving the stability of the cutting quality and avoiding cutting failure due to the positional deviation of the cutter 34. The lifting drive component 36 is fixed to the vertical surface of the first adjusting bracket 35 and connected to it. The second adjusting bracket 37 is also configured as an L-shaped plate with a horizontal plane and a vertical plane. The horizontal plane of the second adjusting bracket 37 is positioned below the lifting drive component 36 and is driven to connect to the output end of the lifting drive component 36. The lifting drive component 36 drives the second adjusting bracket 37 to move up and down relative to the first adjusting bracket 35. The cutting blade 34 is connected to the second adjusting bracket 37 and moves synchronously with it. Thus, the position of the cutting blade 34 is adjusted via the first adjusting bracket 35 to ensure the fitting accuracy of the cutting blade 34, and the extension and retraction of the cutting blade 34 are achieved via the lifting drive component 36 to ensure the stability of the cutting process.

[0047] In this embodiment, the cutting mechanism 30 further includes a heating component 38, which is connected to the second adjusting bracket 37. The cutting blade 34 is connected to the second adjusting bracket 37 via the heating component 38, thereby meeting the temperature requirements for cutting. Specifically, the heating component 38 is positioned at the upper end of the cutting blade 34 and around the cutting blade 34 to improve its heating speed without affecting the lower end of the cutting blade 34 extending to cut the curtain fabric. Depending on the type of curtain fabric to be cut, the required cutting temperature varies. The heating component 38 heats the cutting blade 34 to the required temperature, and then the cutting blade 34 extends and inserts into the curtain fabric to achieve the cutting of the curtain fabric.

[0048] In this embodiment, there are multiple cutting blades 34, which are arranged horizontally on the main frame 31, and during cutting, the movement directions of adjacent cutting blades 34 are opposite to each other. In this embodiment, there are two cutting blades 34, namely cutting blade A and cutting blade B, as shown below. Figure 5 As shown, cutter A and cutter B are arranged adjacent to each other so that cutter A and cutter B can be inserted into the same position of the curtain, thereby ensuring the effectiveness of the curtain cutting. Similarly, the heating component 38, the first adjusting bracket 35, the lifting drive component 36, and the second adjusting bracket 37 that cooperate with cutter 34 are all provided in pairs. When cutter 34 is in the cutting state, cutter A and cutter B are both located in the middle of the main frame 31. When cutter A and cutter B are driven by the lifting drive component 36 to extend downward and insert into the curtain, cutter A and cutter B move simultaneously along the main frame 31 in a direction away from each other to cut the curtain.

[0049] This embodiment also provides a curtain cutting method using the above-mentioned curtain cutting device. The curtain cutting method includes: a conveying mechanism 20 conveys the curtain along a first direction, the cutter 34 is in an avoidance state, and the conveying mechanism 20 stops conveying the curtain when it reaches a predetermined position; the cutting mechanism 30 swings downward, the cutter 34 switches to the cutting state, and the cutter 34 moves along a second transverse direction to cut the curtain.

[0050] In this embodiment, the fabric cutting method further includes: when the conveying mechanism 20 conveys the fabric, the roller mechanism 40 is in the retracted position; when the cutting mechanism 30 swings downward, the roller mechanism 40 swings upward to the support position, and the roller mechanism 40 supports the bottom surface of the fabric.

[0051] In this embodiment, the curtain cutting method further includes: when the cutting mechanism 30 swings downward and the roller mechanism 40 swings upward, the fixed roller 331 of the cutting mechanism 30 and the movable roller 41 of the roller mechanism 40 clamp the curtain from top to bottom, the fixed roller 331 drives the movable roller 41 to rotate in the opposite direction to the first direction, and causes the curtain to retract, and the curtain is in a relaxed state.

[0052] In this embodiment, the curtain cutting method further includes: when the cutter 34 cuts the curtain, the heating component 38 heats the cutter 34 and keeps the temperature of the cutter 34 within a predetermined range; the lifting drive 36 drives the cutter 34 to descend, the cutter 34 penetrates the curtain, and the cutter 34 moves laterally on the main frame 31 to cut the curtain.

[0053] In this embodiment, the curtain fabric cutting method further includes: after the curtain fabric is cut, the movable roller 41 of the roller mechanism 40 swings downward, the fixed roller 331 of the cutting mechanism 30 follows the movable roller 41 to swing downward, and conveys the cut curtain fabric tail to a specific position; the cutting mechanism 30 swings upward to reset, driving the cutter 34 to switch to the avoidance state.

[0054] In summary, the curtain fabric cutting method of this embodiment is as follows: the curtain fabric is conveyed by the conveying mechanism 20, at which time the cutter 34 is in an avoidance state, and the roller mechanism 40 is in the retracted position; when the curtain fabric needs to be cut, the movable roller 41, driven by the roller drive 42, swings upward around the center of the conveyor belt drive roller 21, and the curtain fabric is simultaneously lifted a certain distance, at which time the curtain fabric is in a taut state; the cutting mechanism 30, driven by the swing drive 32, swings downward, and the sub-frame 33 and the cutter 34 swing downward with the main frame 31; when the fixed roller 331 swings downward and contacts the movable roller 41, the cutter 34 does not contact the curtain fabric; when the fixed roller 331 contacts the movable roller 41, the movable roller 41 will roll relative to the fabric, such as... Figure 10 As shown, the curtain fabric changes from a taut to a slack state at this time; the cutting blade 34, under the action of the heating component 38, can reach the temperature required for cutting and maintain this temperature within the allowable range; the two cutting blades 34 fall down one after another under the action of the lifting drive component 36 connected to them, and insert into the curtain fabric in sequence; after both cutting blades 34 are inserted into the curtain fabric, they move synchronously under the drive of the transverse drive component at the end of the main frame 31 to realize the curtain fabric cutting action; when the cutting blade 34 performs the automatic curtain fabric cutting action, since the curtain fabric is in a slack state, the curtain threads can automatically avoid each other during the cutting process, avoiding the need for cutting. Cutting the cord; After the cord is cut, the movable roller 41, driven by the idler roller drive 42, falls with the center of rotation of the conveyor belt drive roller 21 as the center. During the falling process, the fixed roller 331 will follow downward for a certain distance, sending the tail of the cord to a specific position to prevent folding and material piling during the cutting process; The main frame 31 is lifted upward under the drive of the swing drive 32, and the movable roller 41 and the cutter 34 are lifted upward simultaneously with the main frame 31; The cutter 34 moves synchronously under the drive of the transverse drive at the end of the main frame 31 and returns to the waiting position to perform the next cutting action; The automatic cutting action of the cord is completed.

[0055] It should be noted that, Figure 10The fixed roller 331, indicated by the dotted line at the top, is in a clearance state, while the fixed roller 331, indicated by the solid line at the bottom, is in a cutting state. The taut curtain between the movable roller 41 and the drive roller 21 of the conveyor belt is in a conveying state, while the slack curtain is in a cutting state.

[0056] It should be noted that "multiple" in the above embodiments refers to at least two.

[0057] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0058] 1. This technology solves the problem of poor fabric cutting quality in existing technologies;

[0059] 2. By setting the cutting mechanism to be rotatable relative to the machine body, the cutting mechanism can drive the cutting blade to move between a state of avoiding the conveying of the curtain and a state of cutting the curtain when it swings, thereby realizing the automatic cutting of the curtain by the cutting blade and improving the cutting quality of the curtain.

[0060] 3. When the fixed roller comes into contact with the movable roller, the fixed roller continues to approach the movable roller. Driven by the fixed roller, the movable roller rotates relative to its own axis and drives the fabric on its surface to move towards the starting end of the fabric conveying process. This causes the fabric between the movable roller and the drive roller of the conveyor belt to change from a taut state to a slack state. As a result, when the cutter cuts the fabric, the connecting lines of the fabric can automatically avoid each other during the cutting process, thus preventing the fabric from being cut and improving the cutting quality of the fabric.

[0061] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0062] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0063] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A curtain fabric cutting device, characterized in that, include: Body (10); A conveying mechanism (20) is movably connected to the body (10) and conveys the curtain fabric along a first direction; A cutting mechanism (30) is located above the conveying mechanism (20) and is rotatably disposed relative to the machine body (10). The cutting mechanism (30) includes a cutter (34). When the cutting mechanism (30) rotates, it drives the cutter (34) to move between a avoidance state that avoids the conveying of the curtain and a cutting state that cuts the curtain. When the cutter (34) is in the cutting state, it can move along a second direction that forms an angle with the first direction to cut the curtain.

2. The curtain fabric cutting device according to claim 1, characterized in that, The fabric cutting device further includes a roller mechanism (40), which is rotatably connected to the machine body (10). The roller mechanism (40) has the ability to swing upward to a support position to support the fabric and to swing downward to a retracted position to avoid the fabric conveying. When the cutter (34) is in the cutting state, the roller mechanism (40) is located in the support position.

3. The curtain fabric cutting device according to claim 2, characterized in that, The roller mechanism (40) includes a rotatable movable roller (41), and when the roller mechanism (40) is in the supported position, the fabric cutting point is located on the side of the movable roller (41) near the starting end of the fabric conveying.

4. The curtain fabric cutting device according to claim 3, characterized in that, The cutting mechanism (30) further includes a fixed roller (331), and the movable roller (41) is located on the swing path of the fixed roller (331). When the cutting mechanism (30) swings, the fixed roller (331) abuts against the movable roller (41) and drives the movable roller (41) to rotate in the opposite direction to the first direction so that the curtain fabric retracts.

5. The curtain fabric cutting device according to claim 4, characterized in that, When the roller mechanism (40) is in the supported position, the curtain fabric contacts the movable roller (41) and forms a contact point. The movable roller (41) has a symmetrical plane passing through the contact point and the axis of the movable roller (41). When the cutter (34) is in the avoidance state, the fixed roller (331) and the cutter (34) are located on the same side of the symmetrical plane.

6. The curtain fabric cutting device according to claim 3, characterized in that, The idler roller mechanism (40) further includes: Idler roller drive (42); The idler frame (43) is driven to be connected to the idler drive (42) and rotatably connected to the machine body (10). The movable roller (41) is rotatably connected to the idler frame (43), and the rotation axis of the movable roller (41) relative to the idler frame (43) is arranged parallel to and spaced apart from the rotation axis of the idler frame (43) relative to the machine body (10).

7. The curtain fabric cutting device according to any one of claims 1 to 6, characterized in that, The cutting mechanism (30) includes: The main frame (31) is rotatably connected to the machine body (10), and the cutting blade (34) is laterally movable on the main frame (31). A swing drive (32) is connected to the main frame (31) and drives the main frame (31) to rotate the cutter (34). A sub-frame (33) is connected to the main frame (31) and rotates synchronously under the drive of the main frame (31). The end of the sub-frame (33) has a fixed roller (331) for contacting and pressing the upper surface of the curtain.

8. The curtain fabric cutting device according to claim 7, characterized in that, The cutting mechanism (30) further includes: A first adjusting bracket (35) is connected to the main frame (31), and the first adjusting bracket (35) is adjustable in the longitudinal and lateral directions relative to the main frame (31). A lifting drive component (36) is connected to the first adjusting bracket (35); The second adjustment bracket (37) is driven to the output end of the lifting drive (36). The lifting drive (36) drives the second adjustment bracket to move up and down relative to the first adjustment bracket (35). The cutter (34) is connected to the second adjustment bracket and moves synchronously with the second adjustment bracket.

9. The curtain fabric cutting device according to claim 8, characterized in that, The cutting mechanism (30) further includes a heating component (38), which is connected to the second adjusting bracket (37), and the cutting blade (34) is connected to the second adjusting bracket (37) through the heating component (38).

10. The curtain fabric cutting device according to claim 7, characterized in that, There are multiple cutting blades (34), which are arranged horizontally on the main frame (31), and during cutting, the movement directions of two adjacent cutting blades (34) are opposite to each other.

11. A method for cutting curtain fabric, characterized in that, The curtain cutting device according to any one of claims 1 to 10, the curtain cutting method includes: The conveying mechanism (20) conveys the curtain fabric along the first direction, and the cutter (34) is in a avoidance state. The conveying mechanism (20) stops conveying the curtain fabric when it reaches the predetermined position. The cutting mechanism (30) swings downward, the cutter (34) switches to the cutting state, and the cutter (34) moves in the second transverse direction and cuts the curtain.

12. The method for cutting curtain fabric according to claim 11, characterized in that, The method for cutting the curtain fabric also includes: When the conveying mechanism (20) conveys the curtain fabric, the roller mechanism (40) is in the retracted position; When the cutting mechanism (30) swings downward, the roller mechanism (40) swings upward to the support position, and the roller mechanism (40) supports the bottom surface of the curtain fabric.

13. The method for cutting curtain fabric according to claim 12, characterized in that, The method for cutting the curtain fabric also includes: When the cutting mechanism (30) swings downward and the roller mechanism (40) swings upward, the fixed roller (331) of the cutting mechanism (30) and the movable roller (41) of the roller mechanism (40) clamp the curtain fabric from top to bottom. The fixed roller (331) drives the movable roller (41) to rotate in the opposite direction to the first direction, and causes the curtain fabric to retract, and the curtain fabric is in a relaxed state.

14. The method for cutting curtain fabric according to claim 11, characterized in that, The method for cutting the curtain fabric also includes: When the cutting blade (34) cuts the curtain fabric, the heating assembly (38) heats the cutting blade (34) and keeps the temperature of the cutting blade (34) within a predetermined range; The lifting drive (36) drives the cutter (34) to descend, the cutter (34) penetrates the curtain, and the cutter (34) moves laterally on the main frame (31) to cut the curtain.

15. The method for cutting curtain fabric according to claim 14, characterized in that, The method for cutting the curtain fabric also includes: After the curtain fabric is cut, the movable roller (41) of the roller mechanism (40) swings downward, and the fixed roller (331) of the cutting mechanism (30) follows the movable roller (41) to swing downward and conveys the cut curtain fabric tail to a specific position. The cutting mechanism (30) swings upward to reset, causing the cutting blade (34) to switch to the avoidance state.

Images