Automatic numerical control cutting bed for fabric

Abstract

The utility model relates to clothing processing field discloses a kind of automatic numerical control cutting bed of clothing material, structure includes head and tool, tool includes cutter post and blade, shroud assembly is installed at the bottom end of cutter post, shroud assembly includes the sliding cover and sliding wheel seat of activity nest in the bottom end of cutter post, the bottom of sliding wheel seat is equipped with several pressure wheels, shroud assembly further includes lifting mechanism, lifting mechanism is installed in the sliding seat of head, and lifting mechanism is transmission connection with sliding cover for driving sliding cover to ascend, the utility model is provided with the sliding cover and sliding wheel seat of two layers of inside and outside around blade, and let sliding cover and sliding wheel seat all be driven to press down by spring structure, to retain the function of pressing and smoothing when normal cutting in sliding cover, enhance edge cutting stability, when blade cuts to the edge of fabric, sliding cover is driven to rise by lifting mechanism, only pressure wheel presses fabric, pressure wheel rolls on fabric without pushing fabric, avoid the fabric of edge to be pushed dislocation and affect the fabric of back.

Description

Technical Field

[0001] This utility model relates to the field of garment processing, specifically an automatic CNC cutting bed for clothing. Background Technology

[0002] Garment processing typically uses CNC cutting machines to cut fabrics. A CNC cutting machine is a device that uses digital control to cut fabrics into shapes. The device controls the blades to move along a pre-laid path on the fabric, thereby cutting the desired shape of the material.

[0003] The existing cutter head has a protective cover at the bottom. This cover is used to protect the blade when the cutter head is not in use. When the blade is cutting, it presses down with the blade to cover the fabric. When the fabric is laid out, in order to make the most of the fabric space, the material area is laid out to the edge of the fabric. This causes the protective cover to move the fabric at the edge outward when the blade cuts the material at the edge. Although the worktable has negative pressure adsorption, the fabric at the edge is only striped after cutting, and the adsorption force is insufficient, causing the subsequent fabric to shift and affecting subsequent cutting. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides an automatic CNC cutting bed for clothing, which allows the cutting tool to retain the downward pressure effect on the fabric while eliminating the flat pushing effect on the fabric when cutting the fabric edge.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic CNC cutting bed for garments, comprising a machine body and a machine head movably mounted on the machine body. The machine head is equipped with a cutting tool, which includes a cutting column and a blade detachably mounted at the bottom of the cutting column. A movable protective cover assembly is mounted at the bottom of the cutting column. The protective cover assembly includes a sliding cover and a sliding wheel seat movably nested at the bottom of the cutting column. The sliding cover and sliding wheel seat restrict the degree of freedom of rotation around the axis of the cutting column. The sliding wheel seat is located inside the sliding cover, and a plurality of pressure rollers are provided at the bottom of the sliding wheel seat. The pressure rollers are symmetrically arranged on both sides of the blade. A groove is provided at the bottom of the sliding cover for the pressure rollers to extend downwards from the sliding cover. The protective cover assembly also includes a lifting mechanism mounted on a sliding seat on the machine head. The lifting mechanism is connected to the sliding cover via a transmission connection to drive the sliding cover to rise independently on the cutting column.

[0006] Furthermore, the blade post is provided with a first annular groove and a second annular groove from top to bottom. A first mounting ring is nested in the first annular groove and connected to the inside of the sliding cover through a first spring. The first spring provides a downward elastic force to the sliding cover on the first mounting ring. A second mounting ring is nested in the second annular groove and connected to the sliding wheel seat through a second spring. The second spring provides a downward elastic force to the sliding wheel seat on the second mounting ring.

[0007] Furthermore, the cutting post includes an upper part and a lower part of different dimensions, with the first annular groove and the second annular groove respectively located in the upper and lower parts. The outer diameter of the sliding wheel seat is smaller than the minimum inner diameter of the sliding cover. The sliding wheel seat and the lower part of the cutting post are fitted with a clearance nesting mechanism, and the top end of the sliding cover is fitted with the upper part with a clearance nesting mechanism.

[0008] Furthermore, the top of the sliding cover is provided with an annular driven edge, and the lifting mechanism includes an electromagnetic push rod and a driving fork. The electromagnetic push rod is vertically mounted on the slide block and includes a telescopic driving rod. The driving fork is in the shape of two forks with the fork head located below the driven edge. The driving rod is connected to the driving fork to drive the driven edge to rise.

[0009] Furthermore, the fork tail of the driving fork is connected to a hinge frame via a hinge, the hinge frame is fixedly mounted on the electromagnetic push rod, the driving rod of the electromagnetic push rod is movably engaged with the middle part of the driving fork, and the driving rod rises to drive the driving fork to swing upward with the hinge connection point as the fulcrum.

[0010] Furthermore, the inner side of the sliding cover has an inner ring structure with a diameter that decreases inward. The inner ring structure forms a step on the inner side of the sliding cover and is connected to the first spring at the top of the step. The inner wall of the sliding cover above the step is in a gap-nested fit with the upper part of the blade post. The outer diameter of the second mounting ring is larger than the outer diameter of the sliding wheel seat, and the inner wall formed by the inner ring structure is in a gap-nested fit with the second mounting ring.

[0011] Furthermore, the bottom thickness of the sliding cover is less than the radius of the pressure roller, and the diameter of the pressure roller is less than the length of the blade edge.

[0012] Furthermore, the sliding wheel seat is provided with four pressure rollers, which are symmetrically distributed on both sides of the blade.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention features an inner and outer layer of sliding covers and sliding wheel seats around the blade. Both the sliding covers and sliding wheel seats are pressed down by a spring structure. During normal cutting, the sliding covers retain the functions of pressing and smoothing, enhancing the stability of edge cutting. When the blade cuts to the edge of the fabric, the sliding covers are lifted by the lifting mechanism, leaving only the pressure roller to press down on the fabric. The pressure roller rolls on the fabric without pushing it, preventing the edge fabric from being pushed and misaligned, thus affecting the subsequent fabric. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an automatic CNC cutting bed for clothing according to this utility model.

[0015] Figure 2This is a three-dimensional structural diagram of the cutting tool and protective cover assembly on the head of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the protective cover assembly and the cutting tool of this utility model.

[0017] Figure 4 This is a front structural diagram of the protective cover assembly of this utility model in conjunction with the cutting tool.

[0018] In the diagram: 1. Machine body; 2. Machine head; 3. Cutting tool; 4. Protective cover assembly; 11. Worktable; 12. Moving crossbeam; 21. Slide; 31. Cutter post; 32. Blade; 41. Sliding cover; 42. First mounting ring; 43. First spring; 44. Sliding wheel seat; 45. Pressure roller; 46. Second mounting ring; 47. Second spring; 48. Lifting mechanism; 311, First annular groove; 312, Second annular groove; 411, Wheel groove; 412, Driven flange; 481, Electromagnetic push rod; 482, Drive rod; 483, Drive fork; 484, Hinge frame. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0020] Examples, such as Figures 1-4 As shown: This utility model provides an automatic CNC cutting bed for clothing, the structure of which includes a body 1 and a cutting head 2 movably mounted on the body 1. A movable crossbeam 12 is provided on the body 1 via a slide rail and belt drive mechanism. The cutting head 2 is slidably mounted on the movable crossbeam 12 via a slide rail and belt drive mechanism. A worktable 11 is provided on the body 1. A negative pressure chamber driven by a negative pressure pump is provided below the worktable 11 to create negative pressure on the worktable 11. A cutting tool 3 is mounted on the cutting head 2 and drives the cutting tool 3 to move on the worktable 11. The cutting head 2 includes two... One motor drives the cutter 3 to rise and fall via a screw, while the other motor drives the cutter 3 to rotate, cutting the fabric on the worktable 11. Since the fabric is breathable, the negative pressure worktable 11 can absorb at least three layers of fabric in the prior art. The cutter 3 includes a cutter column 31 and a blade 32 detachably mounted at the bottom of the cutter column 31. A movable protective cover assembly 4 is installed at the bottom of the cutter column 31. When cutting a single layer of fabric, or when cutting multiple layers of fabric stacked together, the fabric at the edge is easily shifted by the existing sliding cover 41. Therefore, the protective cover assembly 4 includes a sliding cover 41 and a sliding wheel seat 44 movably nested at the bottom end of the cutter post 31, and restricts the degree of freedom of rotation of the sliding cover 41 and the sliding wheel seat 44 on the cutter post 31 around the axis of the cutter post 31, such as by providing a vertical pin or groove on the cutter post 31 to engage with the sliding cover 41 and the sliding wheel seat 44. The cutter post 31 is provided with an annular first groove 311 and a second groove 312 from top to bottom. The cutter post 31 includes an upper part and a lower part with different dimensions and a transition connection between the upper and lower parts, such as by a curved surface or a slope. The first groove 311 and the second groove 312 are respectively provided in the upper and lower parts. A first mounting ring 42 is nested in the first groove 311 and connected to the inside of the sliding cover 41 by a first spring 43. The first spring 43 provides support for the sliding cover 41 on the first mounting ring 42. The second mounting ring 46 is nested in the second annular groove 312 and connected to the sliding wheel seat 44 by the second spring 47. The second spring 47 provides a downward elastic force to the sliding wheel seat 44 on the second mounting ring 46. The outer diameter of the sliding wheel seat 44 is smaller than the minimum inner diameter of the sliding cover 41. The sliding wheel seat 44 is located inside the sliding cover 41. Several pressure rollers 45 are provided at the bottom of the sliding wheel seat 44. The pressure rollers 45 are symmetrically arranged on both sides of the blade 32. The bottom end of the sliding cover 41 is provided with a wheel groove 411 for the pressure rollers 45 to extend downwards from the sliding cover 41. Thus, the sliding wheel seat 44 and the lower part of the blade column 31 are fitted with a gap, and the top part of the sliding cover 41 is fitted with the upper part with a gap, forming an inner and outer two-layer structure. Both the inner and outer layers are driven by springs to press down on the fabric, achieving the basic flat pressing function. It should be noted that the inner sides of the first mounting ring 42 and the second mounting ring 46 can be made of rubber material for direct nesting into the first ring groove 311 and the second ring groove 312.

[0021] In this embodiment, the sliding wheel seat 44 is provided with four pressure rollers 45, which are symmetrically arranged on both sides of the blade 32. Furthermore, the bottom thickness of the sliding cover 41 is less than the radius of the pressure rollers 45, and the diameter of the pressure rollers 45 is less than the length of the blade edge of the blade 32.

[0022] In this embodiment, the inner side of the sliding cover 41 has an inner ring structure with a diameter that decreases inward. The inner ring structure forms a step on the inner side of the sliding cover 41 and is connected to the first spring 43 at the top of the step. The inner wall of the sliding cover 41 above the step is in a gap-nested fit with the upper part of the blade post 31. The outer diameter of the second mounting ring 46 is larger than the outer diameter of the sliding wheel seat 44. The inner wall formed by the inner ring structure is in a gap-nested fit with the second mounting ring 46. It can be seen that the outer side of the second mounting ring 46 is made of metal or self-lubricating nylon material, which facilitates better contact with the sliding cover 41. This allows the sliding cover 41, which needs to slide multiple times, to have two sliding references and limitations, allowing the sliding cover 41 to slide better.

[0023] Furthermore, the protective cover assembly 4 also includes a lifting mechanism 48, which is mounted on a slide 21 provided on the machine head 2. The lifting mechanism 48 is connected to the slide cover 41 for driving the slide cover 41 to rise independently on the cutter column 31. For this purpose, the top of the slide cover 41 is provided with an annular driven edge 412. The lifting mechanism 48 includes an electromagnetic push rod 481 and a driving fork 483. The electromagnetic push rod 481 is an electromagnet and is vertically mounted on the slide 21. The electromagnetic push rod 481 includes a telescopic driving mechanism. The lever 482 and the driving fork 483 are in the shape of two forks with the fork heads located below the driven edge 412. The lever 482 and the driving fork 483 are connected to drive the driven edge 412 to rise. The fork tail of the driving fork 483 is connected to the hinge frame 484 through a hinge. The hinge frame 484 is fixedly installed on the electromagnetic push rod 481. The driving rod 482 of the electromagnetic push rod 481 is movably engaged with the middle part of the driving fork 483, so that when the driving rod 482 rises, it drives the driving fork 483 to swing upward with the hinge connection point as the fulcrum.

[0024] In summary, in this embodiment, the fabric is laid on the workbench 11, and then negative pressure is activated to allow the workbench 11 to adhere to the fabric. The machine head 2 drives the cutter 3 to descend, allowing the pressure rollers 45 of the sliding cover 41 and the sliding wheel seat 44 to press onto the fabric. Continuing to press down causes the inner blade 32 to cut into the fabric. During the movement of the blade 32, the sliding cover 41 acts as the primary pressing and smoothing mechanism. When the fabric edge is reached, the electromagnetic push rod 481 drives the drive rod 482 to move upwards. When the lever 482 rises, it pulls the fork 483 to swing upwards around the hinge connection point, causing the fork 483 to rise against the slide cover 41. Only the pressure roller 45 of the sliding wheel seat 44 presses against the fabric. The pressure roller 45 is pressed down on the fabric by the second spring 47, keeping the fabric under pressure to better accept cutting. On this basis, the pressure roller 45 rolls on the fabric as the cutter 3 moves, without pushing the fabric, thus avoiding the fabric at the edge being pushed and misaligned.

[0025] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A kind of automatic numerical control cutting bed of service material, structure includes machine body and the machine head of active installation on machine body, the cutter is installed on the machine head, it is characterized in that: The tool includes a tool column and a blade detachably mounted at the bottom end of the tool column, and a movable shield assembly is mounted at the bottom end of the tool column; The shield assembly includes a sliding shield movably nested at the bottom end of the tool column and a sliding wheel seat, the sliding shield and the sliding wheel seat limit the freedom of rotation around the axis of the tool column, the sliding wheel seat is located inside the sliding shield, the bottom of the sliding wheel seat is provided with a plurality of pressing wheels, the pressing wheels are symmetrically arranged on both sides of the blade, and the bottom end of the sliding shield is provided with a wheel groove for the pressing wheels to extend downward of the sliding shield; The shield assembly further includes a lifting mechanism, the lifting mechanism is mounted on the sliding seat provided on the machine head, and the lifting mechanism is in transmission connection with the sliding shield for driving the sliding shield to individually ascend on the tool column.

2. The automatic numerical control cutting bed for material according to claim 1, characterized in that: The tool column is sequentially provided with annular first and second ring grooves from top to bottom, the first ring groove is nested with a first mounting ring and connected with the inside of the sliding shield through a first spring, the first spring provides downward elastic force for the sliding shield on the first mounting ring, and the second ring groove is nested with a second mounting ring and connected with the sliding wheel seat through a second spring, the second spring provides downward elastic force for the sliding wheel seat on the second mounting ring.

3. The automatic numerical control cutting bed of claim 2, wherein: The tool column includes an upper part and a lower part, the first and second ring grooves are arranged on the upper part and the lower part respectively, and the outer diameter of the sliding wheel seat is smaller than the minimum inner diameter of the sliding shield. The sliding wheel seat is gap-nested with the lower part of the tool column, and the top end of the sliding shield is gap-nested with the upper part.

4. The automatic numerical control cutting bed for material according to claim 2 or 3, characterized in that: The top end of the sliding shield is provided with an annular driven rim, the lifting mechanism includes an electromagnetic push rod and a driving fork, the electromagnetic push rod is vertically mounted on the sliding seat, the electromagnetic push rod includes a driving rod for extension and retraction, the driving fork is fork-shaped and the prongs are located below the driven rim, and the driving rod is connected with the driving fork for driving the driven rim to ascend.

5. The automatic numerical control cutting bed for material according to claim 4, characterized in that: The tail of the driving fork is connected with a hinge bracket through a hinge, the hinge bracket is fixedly mounted on the electromagnetic push rod, the driving rod of the electromagnetic push rod is movably clamped with the middle part of the driving fork, and the driving rod drives the driving fork to swing upward with the hinge connection point as the fulcrum.

6. The automatic numerical control cutting bed for material according to claim 3, characterized in that: The inside of the sliding shield has an inner ring structure with a diameter that is reduced inward, the inner ring structure forms a step inside the sliding shield and is connected with the first spring at the top end of the step, and the inner wall of the sliding shield above the step is gap-nested with the upper part of the tool column. The outer diameter of the second mounting ring is greater than the outer diameter of the sliding wheel seat, and the inner wall formed by the inner ring structure is gap-nested with the second mounting ring.

7. The automatic numerical control blanking press according to claim 1, wherein: The thickness of the bottom of the sliding shield is smaller than the radius of the pressing wheel, and the diameter of the pressing wheel is smaller than the length of the blade edge of the blade.

8. The automatic numerical control blanking machine according to claim 1, wherein: The sliding wheel seat is provided with four pressing wheels and symmetrically arranged on both sides of the blade.

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