Edge covering sewing machine
By designing the thread-breaking components and heat-dissipating components of the edge-covering sewing machine, the problem of the sewing machine lacking the sewing thread cutting structure is solved, and efficient cutting of the sewing thread and extending the equipment life is achieved.
Patent Information
- Application Number
- CN202510785239.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-12
- Publication Date
- 2025-08-12
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing sewing machines lack an integrated sewing thread cutting structure, which makes it difficult to cut the sewing thread when cutting tools such as scissors are missing, reducing the practicality of the device.
A edging sewing machine is designed, which includes a thread breaking assembly and a heat dissipation assembly. The thread breaking assembly pushes the cutting knife vertically downward by pressing the plate, and uses the coordination of gears, discs and column rods to cut the sewing thread. The cutting knife moves horizontally in the cutting groove to melt the sewing thread section and maintains the sharpness through the matte surface; the heat dissipation assembly achieves internal cooling through the hinge of the dust cover and the sliding cooperation of the limit groove.
It improves the cutting efficiency and effect of sewing thread, prevents disconnection, and extends the service life of the sewing machine.
Smart Images
Figure CN120465218A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of sewing machines, in particular to an overlock sewing machine. Background Art
[0002] A sewing machine is a mechanical device that uses the cooperation of a needle and a thread hook mechanism to form specific stitches on materials such as cloth and leather with one or more sewing threads, so as to achieve firm sewing of multiple layers of sewing materials.
[0003] The existing sewing machine needs to manually cut the sewing thread with the help of tools such as scissors after use. Since the device lacks an integrated structure for cutting the sewing thread, it is difficult to cut the sewing thread when there are no cutting tools such as scissors, thereby reducing the practicality of the device. For this reason, we provide a hemming sewing machine. Summary of the Invention
[0004] In order to solve the problem that the existing devices in the above background technology lack an integrated structure for cutting the sewing thread, making it difficult to cut the sewing thread when there are no cutting tools such as scissors, the present invention provides a hemming sewing machine.
[0005] The present invention is implemented by the following technical solution: a hemming sewing machine, including a sewing table, a sewing machine body for hemming clothes fixedly connected to one side of the top of the sewing table, a notch corresponding to the position of the sewing machine needle on the sewing machine body, a thread cutting component for cutting the sewing thread is provided on the sewing machine body, and a heat dissipation component for dissipating heat from the interior of the sewing machine body is also provided on the sewing machine body.
[0006] As a further improvement of the above scheme, the thread cutting assembly includes two groups of fixed seats symmetrically fixedly connected to the sewing machine body, the fixed seat is slidably connected to a vertical rod 1, the top ends of the two groups of vertical rods 1 are fixedly connected to the same pressing plate, the outer side of the vertical rod 1 is provided with a spring 1 and the two ends of the spring 1 are respectively fixedly connected to the pressing plate and the fixed seat, the bottom ends of the two groups of vertical rods 1 are fixedly connected to the same connecting plate, a fixed plate is movably provided below the connecting plate, a cutting knife for cutting the sewing thread is movably provided at the bottom of the fixed plate, and a cutting table for supporting the sewing thread is fixedly connected to one side of the sewing table.
[0007] As a further improvement of the above scheme, the wire breaking assembly also includes two groups of vertical rods symmetrically slidably connected to the connecting plate, and the bottom end of the vertical rod is fixedly connected to the fixed plate. The outer side of the vertical rod is provided with a spring, and the two ends of the spring are respectively fixedly connected to the connecting plate and the fixed plate. The fixed plate is fixedly connected to a bracket, and a gear is rotatably connected to the bracket. The outside of the gear is coaxially fixedly connected to a circular disc, and a column is provided on the outside of the circular disc. The outside of the column is movably connected to a bar frame, and a connecting rod is horizontally fixedly connected between the bar frame and the cutting knife. A rack is fixedly connected to the connecting plate and the rack and the gear are meshed.
[0008] As a further improvement of the above-mentioned solution, the heat dissipation assembly includes two groups of heat dissipation ports symmetrically opened on the sewing machine body for dissipating heat from the inside thereof. The external part of the heat dissipation port is provided with a dust cover for preventing external dust from entering the interior of the device. The dust cover and the pressing plate are symmetrically hinged with a connecting rod through a hinge.
[0009] As a further improvement of the above scheme, the bottom of the fixed plate is horizontally fixedly connected with a sliding rod, the top of the cutting knife is symmetrically fixedly connected with two groups of sliders and the sliders are slidably connected to the sliding rod, the top of the slider is fixedly connected with a guide block of a T-shaped structure, and the bottom of the fixed plate is provided with a guide groove of a T-shaped structure and the guide groove is slidably connected to the guide block.
[0010] As a further improvement of the above solution, a V-shaped cutting groove is provided on the top of the cutting table corresponding to the position of the cutting blade, the inner wall of the cutting groove is a frosted surface, and the length of the cutting table is greater than the length of the cutting blade.
[0011] As a further improvement of the above solution, a limiting plate 1 is fixedly connected to the top end of the vertical rod 2 to prevent the vertical rod 2 from detaching from the connecting plate.
[0012] As a further improvement of the above solution, the column is fixedly connected to the outside of the disc near the edge, and the end of the column is fixedly connected to a second limiting plate for preventing it from separating from the bar frame.
[0013] As a further improvement of the above solution, the size of the dust cover is larger than the size of the heat dissipation port.
[0014] As a further improvement of the above solution, two groups of T-shaped limit blocks are symmetrically fixedly connected to one side of the dust cover, and the positions corresponding to the limit blocks on the sewing machine body are provided with T-shaped limit grooves that are compatible with them, and the limit grooves are slidably connected to the limit blocks.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] 1. The present invention can push the cutting knife to move vertically downward to cut the sewing thread by pressing the pressing plate, thereby effectively improving the processing efficiency of the clothes.
[0017] 2. When the sewing thread is too tough or too loose and cannot be cut smoothly, the present invention continues to press the pressing plate, and the sliding cooperation between the second vertical rod and the connecting plate enables the connecting plate to continue to move downward. The downward movement of the connecting plate can drive the rack to move downward, and the meshing action between the rack and the gear can drive the disc to rotate, and the rotation of the disc will drive the column to make a circular motion. The movable cooperation between the column and the strip frame, the fixed action between the strip frame and the cutting knife and the connecting rod, the sliding cooperation between the slider and the slide rod, and the sliding cooperation between the guide block and the guide groove can drive the cutting knife to move horizontally back and forth in the cutting groove on the cutting table, thereby ensuring that the sewing thread can be completely cut.
[0018] 3. In the present invention, when the cutting knife moves horizontally back and forth in the cutting groove, high temperature is generated due to friction. The high temperature can melt the cross section of the sewing thread, and when it solidifies, it can reinforce the sewing thread, thereby preventing the sewing thread from coming off.
[0019] 4. In the present invention, when the cutting knife is moving horizontally back and forth in the cutting groove, the inner wall of the cutting groove is a frosted surface, so the cutting knife can be polished, thereby ensuring the sharpness of the cutting knife and improving the cutting effect of the sewing thread.
[0020] 5. When the pressing plate is pressed to move vertically downward, the present invention utilizes the sliding cooperation between the limit block and the limit groove, and the hinged action between the dust cover, the pressing plate and the connecting rod, so that the dust cover can be pushed to one side to open the heat dissipation port. At this time, the heat generated inside the sewing machine body that has just been used will automatically dissipate to the outside through the heat dissipation port, thereby achieving the purpose of cooling the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;
[0022] Figure 2 This is a schematic diagram of the front view of the three-dimensional structure of the disconnection assembly of the present invention;
[0023] Figure 3 This is a schematic diagram of the rear perspective structure of the disconnection assembly of the present invention;
[0024] Figure 4 A three-dimensional schematic diagram of the disc and column connection structure of the present invention;
[0025] Figure 5This is a three-dimensional schematic diagram of the connection structure of the cutting blade, the sliding block and the guide block of the present invention;
[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the heat dissipation assembly of the present invention;
[0027] Figure 7 It is a schematic side view of the cutting table structure of the present invention.
[0028] Description of main symbols:
[0029] 1. Sewing table; 2. Sewing machine body; 3. Slider; 4. Guide block; 5. Limit plate 1; 6. Limit plate 2; 7. Limit block; 8. Limit slot; 9. Cutting slot; 10. Notch; 101. Fixed seat; 102. Vertical rod 1; 103. Pressing plate; 104. Spring 1; 105. Connecting plate; 106. Fixed plate; 107. Cutting knife; 108. Cutting table; 109. Vertical rod 2; 110. Spring 2; 111. Gear; 112. Disc; 113. Column; 114. Frame; 115. Connecting rod; 116. Rack; 201. Dust cover; 202. Connecting rod. DETAILED DESCRIPTION
[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0031] Example 1:
[0032] Please combine Figure 1-7 A hemming sewing machine of this embodiment includes a sewing table 1, a sewing machine body 2 for hemming clothes is fixedly connected to one side of the top of the sewing table 1, a notch 10 is opened on the sewing table 1 corresponding to the position of the needle of the sewing machine body 2, a thread cutting component for cutting the sewing thread is provided on the sewing machine body 2, and a heat dissipation component for dissipating heat inside the sewing machine body 2 is also provided on the sewing machine body 2.
[0033] The thread-breaking assembly includes two groups of fixed seats 101 symmetrically fixedly connected to the sewing machine body 2, a vertical rod 102 is slidably connected to the fixed seat 101, the top of the two groups of vertical rods 102 is fixedly connected to the same pressing plate 103, the outer sleeve of the vertical rod 102 is provided with a spring 104, and the two ends of the spring 104 are respectively fixedly connected to the pressing plate 103 and the fixed seat 101, the bottom ends of the two groups of vertical rods 102 are fixedly connected to the same connecting plate 105, a fixing plate 106 is movably provided below the connecting plate 105, and a cutting knife 107 for cutting the sewing thread is movably provided at the bottom of the fixing plate 106. A cutting knife 107 for cutting the sewing thread is fixedly connected to one side of the sewing table 1 The cutting table 108 is supported by a line, and the bottom of the fixed plate 106 is horizontally fixedly connected to a slide rod, and the top of the cutting knife 107 is symmetrically fixedly connected to two groups of sliders 3, and the sliders 3 are slidably connected to the slide rod, and the top of the slider 3 is fixedly connected to a guide block 4 with a T-shaped structure. The bottom of the fixed plate 106 is provided with a guide groove of a T-shaped structure, and the guide groove is slidably connected to the guide block 4, which can play a certain guiding role in the horizontal movement of the cutting knife 107. The top of the cutting table 108 is provided with a V-shaped cutting groove 9 corresponding to the position of the blade of the cutting knife 107. The inner wall of the cutting groove 9 is a frosted surface, and the length of the cutting table 108 is greater than the length of the cutting knife 107.
[0034] The disconnection assembly also includes two sets of vertical rods 109 symmetrically connected to the connecting plate 105 and the bottom end of the vertical rod 109 is fixedly connected to the fixed plate 106. The outer sleeve of the vertical rod 109 is provided with a spring 110 and the two ends of the spring 110 are respectively fixedly connected to the connecting plate 105 and the fixed plate 106. The fixed plate 106 is fixedly connected with a bracket, and the bracket is rotatably connected to the gear 111. The outer part of the gear 111 is coaxially fixedly connected to the disc 112. The outer part of the disc 112 is provided with a column 113. The outer part of the column 113 is movable. A bar frame 114 is connected to the connection, and a connecting rod 115 is fixedly connected horizontally between the bar frame 114 and the cutting knife 107. A rack 116 is fixedly connected to the connecting plate 105 and the rack 116 is meshed with the gear 111. The top of the vertical rod 109 is fixedly connected to a limit plate 5 for preventing the vertical rod 109 from detaching from the connecting plate 105. The column 113 is fixedly connected to the outside of the disc 112 near the edge, and the end of the column 113 is fixedly connected to a limit plate 6 for preventing it from detaching from the bar frame 114.
[0035] The implementation principle of the hemming sewing machine in the embodiment of the present application is as follows: first, the clothes to be hemmed are placed on the sewing table 1, and the clothes can be hemmed by the sewing machine body 2. Then, after the hemming is completed, the sewing thread is placed on the cutting table 108, and then the pressing plate 103 is pressed. By pressing the pressing plate 103, the cutting knife 107 can be pushed vertically downward to cut the sewing thread, which effectively improves the processing efficiency of the clothes. Since the elasticity of the spring 2 110 is large enough, the cutting knife 107 will not shake vertically when it is pushed vertically downward. When the sewing thread is too tough or When it is too loose and fails to be cut smoothly, continue to press the pressing plate 103. Since the cutting knife 107 is in the cutting groove 9 at this time, it will not move further, and under the sliding cooperation between the vertical rod 109 and the connecting plate 105, it can continue to push the connecting plate 105 downward, and the downward movement of the connecting plate 105 can drive the rack 116 to move downward. The meshing action between the rack 116 and the gear 111 can drive the disc 112 to rotate, and the rotation of the disc 112 will drive the column 113 to do a circular motion. The active cooperation between the column 113 and the strip frame 114 is used to rotate the strip frame 112. 14 and the fixing effect between the cutting knife 107 and the connecting rod 115, the sliding cooperation between the slider 3 and the slide rod, and the sliding cooperation between the guide block 4 and the guide groove, so that the cutting knife 107 can be driven to move back and forth horizontally in the cutting groove 9 on the cutting table 108, thereby ensuring that the sewing thread can be completely cut off. At the same time, when the cutting knife 107 moves back and forth horizontally in the cutting groove 9, the friction between the cutting knife 107 and the cutting groove 9 generates high temperature, and the temperature can reach 400 to 600 ° C, and the high temperature can melt the cross section of the sewing thread. The melting point of sewing thread is generally between 100 and 200°C, so the sewing thread can be melted, and when the cross section of the sewing thread solidifies, the sewing thread can be reinforced, thereby preventing the sewing thread from being untied. In addition, since the inner wall of the cutting groove 9 is a frosted surface, the cutting knife 107 can be polished, thereby ensuring the sharpness of the cutting knife 107, thereby improving the cutting effect of the sewing thread. Finally, the pressing plate 103 is released, and the self-rebound effect of the spring 1 104 and the spring 2 110 is used to make the cutting knife 107 automatically reset, and the clothes can be taken away.
[0036] Example 2:
[0037] The present embodiment is further improved on the basis of the embodiment 1 in that: the heat dissipation assembly includes two groups of heat dissipation ports symmetrically opened on the sewing machine body 2 for dissipating heat therefrom; a dust cover 201 is provided on the outside of the heat dissipation port for preventing external dust from entering the interior of the device; a connecting rod 202 is symmetrically hinged between the dust cover 201 and the pressing plate 103 through a hinge; the size of the dust cover 201 is larger than that of the heat dissipation port, and the heat dissipation port can be completely sealed to prevent external dust from entering; two groups of T-shaped limit blocks 7 are symmetrically fixedly connected to one side of the dust cover 201; the position of the limit block 7 on the sewing machine body 2 is corresponding A limiting groove 8 of a T-shaped structure adapted thereto is provided, and the limiting groove 8 is slidably connected to the limiting block 7, which can play a certain guiding role in the movement of the dust cover 201. When the pressing plate 103 is pressed to move vertically downward, the sliding cooperation between the limiting block 7 and the limiting groove 8, and the hinged cooperation between the dust cover 201 and the pressing plate 103 and the connecting rod 202 are utilized, so that the dust cover 201 can be pushed to one side to open the heat dissipation port. At this time, the heat generated inside the sewing machine body 2 that has just been used will automatically dissipate to the outside through the heat dissipation port, thereby achieving the purpose of cooling the device and thereby extending the service life of the sewing machine body 2.
[0038] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.
Claims
1. A hemming sewing machine, characterized in that: The invention comprises a sewing table (1), a sewing machine body (2) for hemming clothing being fixedly connected to one side of the top of the sewing table (1), a notch (10) being provided on the sewing table (1) at a position corresponding to a needle of the sewing machine body (2), a thread cutting assembly for cutting the sewing thread being provided on the sewing machine body (2), and a heat dissipation assembly for dissipating heat inside the sewing machine body (2).
2. The hemming sewing machine according to claim 1, characterized in that: The thread-breaking assembly comprises two groups of fixed seats (101) symmetrically fixedly connected to the sewing machine body (2), a vertical rod (102) being slidably connected to the fixed seat (101), the top ends of the two groups of vertical rods (102) being fixedly connected to the same pressing plate (103), the outer portion of the vertical rod (102) being sleeved with a spring (104), and the two ends of the spring (104) being fixedly connected to the pressing plate (103) and the fixed seat (101), the bottom ends of the two groups of vertical rods (102) being fixedly connected to the same connecting plate (105), a fixed plate (106) being movably provided below the connecting plate (105), a cutting knife (107) for cutting the sewing thread being movably provided at the bottom of the fixed plate (106), and a cutting table (108) for supporting the sewing thread being fixedly connected to one side of the sewing table (1).
3. The hemming sewing machine according to claim 2, characterized in that: The disconnection assembly further comprises two sets of vertical rods (109) symmetrically connected to the connecting plate (105) in a sliding manner, and the bottom ends of the vertical rods (109) are fixedly connected to the fixed plate (106), the outer sleeve of the vertical rods (109) is provided with a spring (110), and the two ends of the spring (110) are respectively fixedly connected to the connecting plate (105) and the fixed plate (106), the fixed plate (106) is fixedly connected to a bracket, and the bracket is rotatably connected to a gear (111) The gear (111) is coaxially fixedly connected to a disk (112) on the outside, a column (113) is provided on the outside of the column (113), and a bar frame (114) is movably connected to the outside of the column (113). A connecting rod (115) is horizontally fixedly connected between the bar frame (114) and the cutting knife (107), and a rack (116) is fixedly connected to the connecting plate (105), and the rack (116) is meshed with the gear (111).
4. The hemming sewing machine according to claim 3, characterized in that: The heat dissipation assembly comprises two groups of heat dissipation openings symmetrically provided on a sewing machine body (2) for dissipating heat from the interior thereof; dust covers (201) are movably provided on the exterior of the heat dissipation openings for preventing external dust from entering the interior of the device; and connecting rods (202) are symmetrically hinged between the dust cover (201) and the pressing plate (103) via hinges.
5. The overlock sewing machine according to claim 4, characterized in that: The bottom of the fixed plate (106) is horizontally fixedly connected to a slide bar, the top of the cutting knife (107) is symmetrically fixedly connected to two groups of sliders (3), and the sliders (3) are slidably connected to the slide bar, the top of the slider (3) is fixedly connected to a guide block (4) with a T-shaped structure, and the bottom of the fixed plate (106) is provided with a guide groove with a T-shaped structure, and the guide groove is slidably connected to the guide block (4).
6. The overlock sewing machine according to claim 5, characterized in that: A V-shaped cutting groove (9) is provided on the top of the cutting table (108) at a position corresponding to the blade of the cutting knife (107). The inner wall of the cutting groove (9) is a frosted surface. The length of the cutting table (108) is greater than that of the cutting knife (107).
7. The overlock sewing machine according to claim 6, characterized in that: The top end of the second vertical rod (109) is fixedly connected to a limiting plate (5) for preventing the second vertical rod (109) from being separated from the connecting plate (105).
8. The overlock sewing machine according to claim 7, characterized in that: The column rod (113) is fixedly connected to a position outside the disc (112) near the edge, and the end of the column rod (113) is fixedly connected to a second limiting plate (6) for preventing it from being separated from the bar frame (114).
9. The overlock sewing machine according to claim 8, characterized in that: The size of the dust cover (201) is larger than the size of the heat dissipation port.
10. The overlock sewing machine according to claim 9, characterized in that: Two groups of T-shaped limiting blocks (7) are symmetrically fixedly connected to one side of the dust cover (201); corresponding T-shaped limiting grooves (8) are provided on the sewing machine body (2) at positions corresponding to the limiting blocks (7); and the limiting grooves (8) are slidably connected to the limiting blocks (7).