Cutter device of sewing machine
By designing the cutting device of the sewing machine, using guide plates, cross-cutting tools, clamping parts and pressing parts, the problem of uneven cutting edges of the sewing machine when cutting different fabrics is solved, efficient and accurate fabric cutting is achieved, and production efficiency and product aesthetics are improved.
Patent Information
- Application Number
- CN202421168139.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-05-27
AI Technical Summary
When sewing machines cut different types and thicknesses of fabrics, they need to frequently shut down to adjust the cutting depth and angle, resulting in interruption of production; at the same time, the cloth pressure distribution during the cutting process is uneven, resulting in uneven cutting edges, affecting the cutting accuracy and aesthetics.
A sewing machine cutter device is designed, including a guide plate, a cross-arranged cutter component, a clamping component and a pressing component. The cutting part is guided through the guide plate, so that the two tools simulate the movement of the scissors and apply pressure evenly; the clamping part realizes the cross movement of the tool through the articulation shaft and the drive shaft to adapt to fabrics of different thicknesses; the pressing part makes the fabric in a tight state through the top plate, the pressing strip and the spring, improving cutting efficiency and edge flatness.
It realizes efficient cutting of different types and thickness fabrics, ensures neat and smooth cutting edges, improves cutting accuracy and aesthetics, reduces the frequency of sewing machine shutdown adjustment, and improves production efficiency.
Smart Images
Figure CN222574984U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewing machines, in particular to a cutting device for sewing machines. Background Art
[0002] With the mass production of the textile industry, people began to explore how to sew more efficiently. Using sewing machines can replace manual sewing and improve production efficiency.
[0003] Since the types and thicknesses of fabrics cut by the sewing machine are very different when it is working, the cutting depth and cutting angle of the rotary cutter disc need to be adjusted according to factors such as the type and thickness of the fabric being cut, which causes the sewing machine to stop, thus interrupting the production of the sewing machine and affecting production efficiency;
[0004] In addition, when the rotating cutter disc approaches the cloth, the angle and distance between the blade and the cloth change, resulting in uneven pressure distribution on the cloth during the cutting process of the rotating cutter disc. As a result, the edge of the cloth is not smooth after cutting, which reduces the cutting accuracy of the cloth and affects the appearance of the cut cloth. Utility Model Content
[0005] In view of the problem that the sewing machine needs to be stopped for adjustment for different types of fabrics when cutting fabrics, and the pressure distribution on the fabrics during the cutting process is uneven, resulting in uneven edges of the fabrics after cutting, the present utility model is proposed.
[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a sewing machine cutting device, comprising a bracket and a working box arranged on the bracket, a mounting seat arranged on the working box, a cylinder arranged on the mounting seat, a working groove arranged in the middle area of the working box, and a cutting body arranged in the working groove, wherein the cutting body comprises a guide plate, a cutting member arranged between adjacent guide plates, a clamping member arranged on the cutting member for fastening the cutting member, and a cloth pressing member arranged at one end of adjacent guide plates away from each other;
[0007] The cutting tool component includes two cutters, which are arranged crosswise with each other, a blade portion arranged at one end of the cutter and located on the side where two adjacent cutters are close to each other, a hinge hole arranged in the middle of the cutter, a hinge shaft arranged in the hinge hole, a driving shaft arranged at one end of the cutter away from the blade portion, and limit blocks arranged at both ends of the driving shaft.
[0008] As a preferred solution of the sewing machine cutting device of the utility model, wherein: a clearance groove is arranged in the middle part of the guide plate, a guide groove is arranged on the guide plate and located on both sides of the clearance groove, the guide groove has a zigzag structure, and a limit groove is arranged in the guide groove.
[0009] As a preferred solution of the sewing machine cutter device of the utility model, wherein: the clamping component includes a movable frame, a pressure ring arranged at both ends of the movable frame, one end of the pressure ring is connected to the tool, a mounting groove arranged at the end of the pressure ring away from the tool, a bearing arranged in the mounting groove, the hinge shaft passes through the movable frame, the pressure ring, and the bearing, a sleeve arranged at both ends of the hinge shaft, a spring 1 arranged at one end of the sleeve, a pressure plate arranged at an end of the spring 1 away from the sleeve, the pressure plate is connected to the bearing, and a fastening bolt arranged at one end of the sleeve away from the spring 1, the fastening bolt passes through the sleeve and is threadedly connected to the hinge shaft.
[0010] As a preferred solution of the sewing machine cutting device of the utility model, wherein: the cloth pressing component includes a top plate arranged on the top of the guide plate and pressure strips arranged at the lower ends of both sides of the top plate, guide rods arranged at both ends of the pressure strip close to the top plate, the guide rods penetrate the top plate, and an adjustment plate is arranged on the guide rods, and the adjustment plate is located in the middle area between the top plate and the pressure strip.
[0011] As a preferred solution of the sewing machine cutting device of the utility model, wherein: spring two is arranged at both ends of one side of the adjusting plate close to the pressure strip, the end of the spring two away from the adjusting plate is connected to the pressure strip, and an adjusting bolt is arranged on the top plate, and the adjusting bolt passes through the top plate.
[0012] As a preferred solution of the sewing machine cutting device of the utility model, wherein: a linear rail is arranged on the middle area of one side of the top plate close to the guide plate, a slider is arranged on the linear rail, the side of the slider away from the linear rail is connected to the piston end of the cylinder, and the piston end of the cylinder is connected to one end of the movable frame close to the top plate.
[0013] Beneficial effects of the utility model:
[0014] 1. The cutter components are guided by the guide plate, so that the two cutters simulate the movement of scissors, so that the upper and lower cutters directly contact the fabric and cut it, so that the blades of the two cutters evenly apply pressure to the fabric when cutting the fabric, so that the edges of the cut fabric are neat and smooth, improving the cutting accuracy of the edges of the fabric and ensuring the aesthetics of the fabric after cutting;
[0015] 2. The edge of the fabric is cut by the cross movement of two adjacent knives, making the cutting force and position of the cutter component more precise, thereby adapting to fabrics of different thicknesses, improving the adaptability of the cutter component, and thus improving the production efficiency of the sewing machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:
[0017] Figure 1 The utility model is a schematic diagram of the overall structure of the sewing machine cutting device.
[0018] Figure 2 The utility model is a structural schematic diagram of the cutting body explosion of the sewing machine cutting device.
[0019] Figure 3 The utility model is a schematic diagram of the overall structure of the cutter component of the cutter device of a sewing machine.
[0020] Figure 4 The utility model is a sewing machine cutting device Figure 3 Schematic diagram of the structure enlarged at point A in the middle.
[0021] Figure 5 The utility model is a schematic diagram of the overall structure of the cloth pressing component of the sewing machine cutting device.
[0022] Description of reference numerals:
[0023] 1. working box; 11. cutting body; 12. guide plate; 121. clearance groove; 122. guide groove;
[0024] 2. Cutter component; 21. Cutter; 22. Articulated shaft; 23. Drive shaft;
[0025] 3. Clamping parts; 31. Moving frame; 32. Pressing ring; 33. Bearing; 34. Sleeve; 35. Spring 1; 36. Pressing sheet; 37. Fastening bolts;
[0026] 4. Cloth pressing component; 41. Top plate; 42. Pressing strip; 43. Guide rod; 44. Adjusting plate; 45. Spring 2; 46. Adjusting bolt. DETAILED DESCRIPTION
[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.
[0028] Example 1
[0029] Reference Figure 1-4 , which is the first embodiment of the utility model, provides a sewing machine cutting device, the sewing machine cutting device comprises, including a bracket and a working box 1 arranged on the bracket, a mounting seat arranged on the working box 1, a cylinder arranged on the mounting seat, a working groove arranged in the middle area of the working box 1, a cutting body 11 arranged in the working groove, the cutting body 11 comprises a guide plate 12, the guide plate 12 is fixedly mounted on the top of the bracket, a cutting member 2 arranged between adjacent guide plates 12, a clamping member 3 arranged on the cutting member 2 for fastening the cutting member 2, and a cloth pressing member 4 arranged at one end of the adjacent guide plates 12 away from each other;
[0030] The cutting tool component 2 includes two cutters 21, which are arranged crosswise with each other, a blade portion arranged at one end of the cutter 21 and located on the side where two adjacent cutters 21 are close to each other, a hinge hole arranged in the middle of the cutter 21, a hinge shaft 22 arranged in the hinge hole, a driving shaft 23 arranged at one end of the cutter 21 away from the blade portion, and limit blocks arranged at both ends of the driving shaft 23.
[0031] The giving way groove 121 is arranged in the middle of the guide plate 12, and the cloth to be cut is given way through the giving way groove 121 to avoid blockage during cloth cutting, and at the same time, the clamping component 3 can be avoided. The guide grooves 122 are arranged on the guide plate 12 and located on both sides of the giving way groove 121. The guide groove 122 has a zigzag structure. The limiting grooves arranged in the guide groove 122, one end of two adjacent guide grooves 122 gradually approach along the moving direction of the cutting knife component 2, so that the limiting block slides along the limiting groove, and then the driving shaft 23 drives the two cutters 21 to rotate around the hinge shaft 22 as the axis, thereby realizing the cutting of the cloth.
[0032] The clamping component 3 includes a movable frame 31, at both ends of the movable frame 31 are rotatably installed with a pressure ring 32, one end of the pressure ring 32 is connected to the tool 21, and an installation groove is provided at the end of the pressure ring 32 away from the tool 21, and a bearing 33 is fixedly installed in the installation groove, the hinge shaft 22 passes through the movable frame 31, the pressure ring 32, and the bearing 33, and sleeves 34 are inserted at both ends of the hinge shaft 22, a spring 35 is arranged at one end of the sleeve 34, a pressure piece 36 is arranged at the end of the spring 35 away from the sleeve 34, the pressure piece 36 is connected to the bearing 33, and a fastening bolt 37 is arranged at the end of the sleeve 34 away from the spring 35, the fastening bolt 37 passes through the sleeve 34 and is threadedly connected to the hinge shaft 22, and the spring 35 is rotated to make the pressure piece apply pressure to the bearing 33, so as to make adjacent pressure rings approach each other, so as to achieve close fit between the two tools 21, thereby improving the cutting effect of the cutter component 2.
[0033] During use, the cloth is first pushed in along the clearance groove 121, and then the piston end of the cylinder will continuously extend and retract, so that the moving frame 31 moves linearly back and forth along the linear track, thereby driving the cutter component 2 to move synchronously;
[0034] At this time, the driving shaft 23 will slide in the guide groove 122, and the limit blocks at both ends of the driving shaft 23 will slide in the limit grooves. As the driving shaft 23 moves along the guide groove 122, the two adjacent cutters 21 rotate around the hinge shaft 22 as the axis, so that the ends of the adjacent cutters 21 with the blades gradually approach each other, so that the ends of the adjacent cutters 21 approach each other and cut the edge of the cloth;
[0035] At the same time, by rotating the fastening bolt 37, the sleeve 34 moves on the hinge shaft 22, causing the spring to deform, and applying pressure to the bearing 33 through the pressure plate 36, so that the bearing 33 presses the pressure ring 32 tightly, so that the two knives 21 located between the two adjacent pressure rings 32 are pushed to a precise fit, thereby ensuring the cutting effect of the cutting knife component 2 on the edge of the cloth.
[0036] Example 2
[0037] Reference Figure 1-5 , which is the second embodiment of the utility model, and this embodiment is different from the first embodiment in that:
[0038] The cloth pressing component 4 includes a top plate 41 arranged on the top of the guide plate 12 and pressure strips 42 arranged at the lower ends of both sides of the top plate 41, guide rods 43 arranged at both ends of the pressure strip 42 close to the top plate 41, the guide rods 43 penetrate the top plate 41, an adjustment plate 44 arranged on the guide rods 43, the adjustment plate 44 is located in the middle area of the top plate 41 and the pressure strip 42, and springs 45 are arranged at both ends of the adjustment plate 44 close to the pressure strip 42, and one end of the spring 45 away from the adjustment plate 44 is connected to the pressure strip 42, and is arranged at The adjusting bolt 46 on the top plate 41 passes through the top plate 41. Rotating grooves are provided on both sides of the top of the working box 1. The rotating grooves are located at the lower end of the pressure strip 42. Several rollers are rotatably arranged in the rotating grooves. When the cloth enters, the pressure strip will press the cloth. The rollers rotate to avoid cloth jam. The cloth pressing parts 4 are arranged on both sides of the cutting knife part 2, so that the cloth is in a taut state when being cut, thereby improving the completion of the edge of the cut cloth, further improving the cutting efficiency and the appearance of the product.
[0039] A linear rail is arranged on the middle area of one side of the top plate 41 close to the guide plate 12, and a slider is arranged on the linear rail. The side of the slider away from the linear rail is connected to the piston end of the cylinder, and the piston end of the cylinder is connected to the end of the movable frame 31 close to the top plate 41. The extension and retraction of the cylinder piston end can be utilized to make the cutting component 2 simulate the operation of scissors, thereby improving the cutting effect of the cloth. The linear reciprocating motion of the cylinder piston end is guided by the linear rail and the slider, so that the operation of the cutting body 1 is more stable.
[0040] During use, by rotating the adjusting bolt 46, the adjusting bolt 46 can adjust the position of the adjusting plate 44, thereby adjusting the deformation of the second spring 45, thereby controlling the pressure on the fabric between the pressure strip 42 and the roller;
[0041] When the cloth is guided to the guide groove 122, the cloth will be located between the pressure strip 42 and the roller. When the cutter component 2 cuts the cloth, the pressing component will keep the cloth in a taut state, so that the cutter component 2 can cut more smoothly, thereby improving the cutting effect of the cloth edge.
[0042] The remaining structures are the same as those of Example 1.
[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A sewing machine cutting device, comprising a support and a working box (1) arranged on the support, a mounting seat arranged on the working box (1), a cylinder arranged on the mounting seat, a working groove arranged in the middle area of the working box (1), and a cutting body (11) arranged in the working groove, characterized in that: The cutting body (11) comprises a guide plate (12), a cutter component (2) arranged between adjacent guide plates (12), a clamping component (3) arranged on the cutter component (2) for fastening the cutter component (2), and a cloth pressing component (4) arranged at one end of adjacent guide plates (12) away from each other; The cutting knife component (2) comprises two knives (21), the two knives (21) are arranged crosswise with each other, a blade portion arranged at one end of the knives (21) and located on the side where two adjacent knives (21) are close to each other, a hinge hole arranged in the middle of the knives (21), a hinge shaft (22) arranged in the hinge hole, a driving shaft (23) arranged at one end of the knives (21) away from the blade portion, and limit blocks arranged at both ends of the driving shaft (23).
2. The sewing machine cutting device according to claim 1, characterized in that: A clearance groove (121) is arranged in the middle of the guide plate (12), and guide grooves (122) are arranged on the guide plate (12) and located on both sides of the clearance groove (121), the guide groove (122) is a zigzag structure, and a limiting groove is arranged in the guide groove (122).
3. The sewing machine cutting device according to claim 1, characterized in that: The clamping component (3) comprises a movable frame (31), a pressure ring (32) arranged at both ends of the movable frame (31), one end of the pressure ring (32) being connected to the tool (21), a mounting groove arranged at the end of the pressure ring (32) away from the tool (21), a bearing (33) arranged in the mounting groove, the hinge shaft (22) passing through the movable frame (31), the pressure ring (32), the bearing (33), and a hinge shaft (22) arranged at the hinge shaft ( A sleeve (34) is provided at both ends of the sleeve (22), a spring (35) is provided at one end of the sleeve (34), a pressing plate (36) is provided at the end of the spring (35) away from the sleeve (34), the pressing plate (36) is connected to the bearing (33), and a fastening bolt (37) is provided at the end of the sleeve (34) away from the spring (35), the fastening bolt (37) passes through the sleeve (34) and is threadedly connected to the hinge shaft (22).
4. The sewing machine cutting device according to claim 3, characterized in that: The cloth pressing component (4) comprises a top plate (41) arranged on the top of the guide plate (12) and pressure strips (42) arranged at the lower ends of both sides of the top plate (41), guide rods (43) arranged at both ends of one side of the pressure strip (42) close to the top plate (41), the guide rods (43) penetrate the top plate (41), and an adjustment plate (44) arranged on the guide rods (43), and the adjustment plate (44) is located in the middle area between the top plate (41) and the pressure strips (42).
5. The sewing machine cutting device according to claim 4, characterized in that: Spring 2 (45) is arranged at both ends of one side of the adjusting plate (44) close to the pressure strip (42), and one end of the spring 2 (45) away from the adjusting plate (44) is connected to the pressure strip (42); an adjusting bolt (46) is arranged on the top plate (41), and the adjusting bolt (46) passes through the top plate (41).
6. The sewing machine cutting device according to claim 4, characterized in that: A linear rail is arranged on the middle area of one side of the top plate (41) close to the guide plate (12), and a slider is arranged on the linear rail, wherein the side of the slider away from the linear rail is connected to the piston end of the cylinder, and the piston end of the cylinder is connected to one end of the moving frame (31) close to the top plate (41).