Combined sewing machine needle plate
By designing a replaceable horizontal plate in the sewing machine needle plate and reducing the deformation of the needle hole by flipping, the problem of deformation of the existing sewing machine needle plate under high frequency vibration is solved, and cost reduction and service life are achieved.
Patent Information
- Application Number
- CN202422261609.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-14
AI Technical Summary
The thin plate structure of the needle plate of the existing sewing machine is prone to deform under high frequency vibration, resulting in the needle hole being in a funnel structure, affecting the movement of the thimble and presser foot, and the replacement cost is high and troublesome.
A combined sewing machine needle plate is designed, with the pinhole arranged on the horizontal plate, which can be replaced, and the deformation of the pinhole part is reduced by flipping.
It realizes rapid replacement of cross panels, reduces costs, extends service life, and effectively reduces pinhole deformation and improves work efficiency.
Smart Images
Figure CN223003130U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewing machines, in particular to a combined sewing machine needle plate. Background Art
[0002] At present, the needle plate of a sewing machine is mainly in the form of a thin plate structure, with a needle hole adapted to the thimble of the sewing machine opened in the middle. As the part of the fabric to be sewn is placed on the top of the needle plate and the thimble vibrates at high frequency, the needle plate with a thin plate structure and the needle hole in the middle are easily compressed and deformed, which in turn causes the needle hole to have a funnel structure, thereby affecting the movement of the thimble and the presser foot below. Once the needle hole is deformed, the entire needle plate can only be damaged, resulting in increased costs and more troublesome replacement, affecting work efficiency. Summary of the invention
[0003] The technical problem to be solved by the utility model is to provide a combined sewing machine needle plate, in which the needle hole is arranged on a horizontal plate, and the horizontal plate is replaceable, and the horizontal plate can reduce the deformation of the needle hole part by flipping, so as to solve the problems raised in the above-mentioned background technology.
[0004] The utility model is realized through the following technical scheme: a combined sewing machine needle plate, comprising a needle plate body and a transverse plate, the needle plate body is provided with a mounting opening, the transverse plate is arranged inside the mounting opening, a needle hole is arranged on the transverse plate, first cloth feeding tooth grooves are arranged on both sides of the needle hole, a second cloth feeding tooth groove is formed between the transverse plate and the mounting opening, slots are arranged at both ends of the transverse plate, positioning grooves are arranged on the inner side surface of the mounting opening facing the slots, positioning columns are arranged in the positioning grooves, one end of the positioning columns is inserted into the slots, adjusting plates for driving the positioning columns to move are arranged on the left and right sides of the inner side of the needle plate body, and an adjusting mechanism for driving the adjusting plates to move is installed on the needle plate body.
[0005] As a preferred technical solution, a strip-shaped opening is provided on the inner side surface of the needle plate body opposite to the positioning groove, one end of the adjustment plate is bent to form a fixing portion, the fixing portion is inserted into the strip-shaped opening and fixedly connected to the positioning column, and a retreat space is formed between the outer side surface of the fixing portion and the positioning groove.
[0006] As a preferred technical solution, the adjusting mechanism includes a screw, a first bevel gear, a second bevel gear and multiple fixed seats, the fixed seats are all installed on the inner side of the needle plate body, the first sealed bearings are embedded on the fixed seats, the other end of the adjusting plate is thickened to form a connecting part, the connecting part is provided with a screw hole, the screw is threadedly connected to the relative screw hole, both ends of the screw are installed in the inner ring of the first sealed bearing, one end of the screw is extended outward and fixedly connected to the first bevel gear, the second bevel gear is arranged on one side of the first bevel gear and meshed with the first bevel gear, and a knob assembly for driving the second bevel gear to rotate is installed on the panel.
[0007] As a preferred technical solution, the knob assembly includes a rotating seat, a second sealed bearing, and a shaft rod. A groove is provided on the outer side surface of the needle plate body corresponding to the second bevel gear, and a shaft hole is provided on the bottom surface of the groove. The second sealed bearing is installed in the shaft hole, the rotating seat is arranged in the groove, the shaft rod is installed in the inner ring of the second sealed bearing, one end of the shaft rod is installed on the rotating seat, and the other end is installed on the second bevel gear.
[0008] As a preferred technical solution, the outer end face of the rotating seat is flush with the outer side surface of the needle plate body, and a cross groove is provided on the rotating seat.
[0009] As a preferred technical solution, a plurality of reinforcing plates are installed on the inner side surface of the needle plate body, and one end of the reinforcing plate extends to one side surface of the cross plate.
[0010] As a preferred technical solution, the cross-sections of the slot, the positioning groove, and the positioning post are all arranged in a rectangular structure.
[0011] The beneficial effects of the present utility model are as follows: The structure of the present utility model is simple. The needle holes are provided on the cross plate, and the cross plate is assembled and installed in the installation opening, so that the cross plate can be quickly replaced without replacing the entire needle plate body, reducing the cost. And after one side of the cross plate is squeezed for a long time, the cross plate can be flipped to make the cross plate receive a reverse extrusion, greatly reducing the deformation of the needle hole part of the cross plate. Description of the Drawings
[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.
[0013] Figure 1 It is a schematic diagram of the overall structure of the present utility model;
[0014] Figure 2 It is a schematic diagram of the structure of the present utility model after removing the cross plate;
[0015] Figure 3 It is a bottom view of the present utility model;
[0016] Figure 4 It is a schematic diagram of the structure of the present utility model after removing the rotating seat.
[0017] Among them, 1. Needle plate body; 2. Installation port; 3. Horizontal plate; 4. Needle hole; 5. Observation port; 6. Reinforcement plate; 7. Rotating seat; 8. Positioning column; 9. Adjusting plate; 10. Strip-shaped opening; 11. Fixing part; 12. Lead screw; 13. First bevel gear; 14. Second bevel gear; 15. Groove; 16. Second sealing bearing. Detailed implementation manner
[0018] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.
[0019] All features disclosed in this specification, or all steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any manner.
[0020] Any feature disclosed in this specification (including any additional claims, abstract, and drawings), unless specifically stated, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically stated, each feature is only an example of a series of equivalent or similar features.
[0021] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, a combined sewing machine needle plate of the present invention includes a needle plate body 1 and a horizontal plate 3. An installation port 2 is provided on the needle plate body 1, the horizontal plate 3 is arranged inside the installation port 2, a needle hole 4 is provided on the horizontal plate 3, first cloth feeding tooth grooves are provided on both sides of the horizontal plate 3 at the needle hole 4, a second cloth feeding tooth groove is formed between the horizontal plate 3 and the installation port 2, slots are provided at both ends of the horizontal plate 3, positioning grooves are provided on the inner side surface of the installation port 2 corresponding to the slots, positioning columns 8 are provided in the positioning grooves, one end of each positioning column 8 is inserted into the slot, adjusting plates 9 for driving the positioning columns 8 to move are arranged on the left and right sides inside the needle plate body 1, and an adjusting mechanism for driving the adjusting plates 9 to move is installed on the needle plate body 1;
[0022] Among them, observation ports 5 communicating with the slots are provided on the opposite end faces of the first cloth feeding tooth grooves, and it can be seen through the observation ports whether the internal positioning columns are inserted. Among them, a plurality of fixing holes are provided on the needle plate body.
[0023] In this embodiment, strip-shaped openings 10 are provided on the inner side surface of the needle plate body 1 corresponding to the positioning grooves. One end of each adjusting plate 9 is bent to form a fixing part 11. The fixing parts 11 are inserted into the strip-shaped openings 10 and fixedly connected to the positioning columns 8, and a yielding space is formed between the outer side surface of the fixing part 11 and the positioning groove.
[0024] In this embodiment, the adjusting mechanism includes a lead screw 12, a first bevel gear 13, a second bevel gear 14 and a plurality of fixed seats. The fixed seats are all installed on the inner side surface of the needle plate body 1. First sealing bearings are embedded in the fixed seats. The other ends of the adjusting plates 9 are thickened to form connecting parts. Lead screw holes are provided on the connecting parts. The lead screw 12 is threadedly connected to the opposite lead screw holes. Both ends of the lead screw 12 are installed in the inner rings of the first sealing bearings. One end of the lead screw 12 extends outwards and is fixedly connected to the first bevel gear 13. The second bevel gear 14 is arranged on one side of the first bevel gear 13 and is meshed and connected with the first bevel gear 13. A knob assembly for driving the second bevel gear 14 to rotate is installed on the panel.
[0025] In this embodiment, the knob assembly includes a rotating seat 7, a second sealing bearing 16 and a shaft rod. A groove 15 is provided on the outer side surface of the needle plate body 1 opposite to the second bevel gear 14. A shaft hole is provided on the bottom surface of the groove 15. The second sealing bearing 16 is installed in the shaft hole. The rotating seat 7 is arranged in the groove 15. The shaft rod is installed in the inner ring of the second sealing bearing 16. One end of the shaft rod is installed on the rotating seat 7, and the other end is installed on the second bevel gear.
[0026] In this embodiment, the outer end surface of the rotating seat 7 is flush with the outer side surface of the needle plate body 1. A cross groove is provided on the rotating seat 7, which avoids affecting the passing of the fabric through the outer surface of the rotating seat.
[0027] In this embodiment, a plurality of reinforcing plates 6 are installed on the inner side surface of the needle plate body 1. One end of the reinforcing plate 6 extends to one side surface of the cross plate 3. The bearing capacity on both sides of the cross plate is increased by the reinforcing plate, the pressure received by the positioning post can be shared, and the service life is increased.
[0028] In this embodiment, the cross sections of the slot, the positioning slot and the positioning post 8 are all arranged in a rectangular structure, so that the installed cross plate can be positioned and the self-rotation of the cross plate is avoided.
[0029] The pinhole is provided on the horizontal plate, and the horizontal plate is independently fixed. Therefore, after one side of the horizontal plate is squeezed for a long time, the rotary seat can be rotated by a screwdriver. The rotation of the rotary seat drives the shaft rod and the second bevel gear. The rotation of the second bevel gear drives the first bevel gear and the lead screw. The rotation of the lead screw drives the adjusting plate, causing the adjusting plate to move outwards synchronously. The movement of the adjusting plate drives the positioning post, causing the positioning post to be pulled out of the slot. After losing the limit of the slot, the horizontal plate can be directly taken out from the installation port upwards. After being taken out, the horizontal plate can be flipped and then put into the installation port again. After the rotary seat rotates in the reverse direction, the lead screw rotating in the reverse direction can drive the adjusting plate to move inwards and drive the positioning post to insert into the slot of the horizontal plate, thereby positioning the placed horizontal plate again. After the horizontal plate is flipped, a reverse extrusion force is applied to the horizontal plate, which can flatten the deformed part again to increase the service life of the horizontal plate;
[0030] Among them, through the above installation and disassembly methods, the horizontal plate can be quickly replaced without replacing the entire needle plate body, reducing costs, and the replacement operation is convenient. As long as a screwdriver is prepared, the operation can be directly carried out externally.
[0031] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any change or replacement that can be thought of without creative work should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims
1. A combined sewing machine needle plate, characterized in that: The invention comprises a needle plate body (1) and a transverse plate (3), wherein the needle plate body (1) is provided with a mounting opening (2), the transverse plate (3) is arranged inside the mounting opening (2), the transverse plate (3) is provided with a needle hole (4), the transverse plate (3) is provided with a first cloth feeding tooth groove on both sides of the needle hole (4), a second cloth feeding tooth groove is formed between the transverse plate (3) and the mounting opening (2), slots are provided at both ends of the transverse plate (3), a positioning slot is provided on the inner side surface of the mounting opening (2) facing the slot, a positioning column (8) is provided in the positioning slot, one end of the positioning column (8) is inserted into the slot, and adjustment plates (9) for driving the positioning column (8) to move are arranged on the left and right sides of the inner side of the needle plate body (1), and an adjustment mechanism for driving the adjustment plate (9) to move is installed on the needle plate body (1).
2. The combined sewing machine needle plate according to claim 1, characterized in that: The inner side surface of the needle plate body (1) is provided with a strip opening (10) opposite to the positioning groove, one end of the adjustment plate (9) is bent to form a fixing portion (11), the fixing portion (11) is inserted into the strip opening (10) and fixedly connected to the positioning column (8), and a retreat space is formed between the outer side surface of the fixing portion (11) and the positioning groove.
3. The combined sewing machine needle plate according to claim 1, characterized in that: The adjusting mechanism comprises a screw rod (12), a first bevel gear (13), a second bevel gear (14) and a plurality of fixing seats, wherein the fixing seats are all mounted on the inner side surface of the needle plate body (1), and the fixing seats are all embedded with a first sealed bearing. The other end of the adjusting plate (9) is thickened to form a connecting portion, and a screw rod (12) hole is provided on the connecting portion. The screw rod (12) is threadedly connected to the opposite screw rod (12) hole, and both ends of the screw rod (12) are installed in the inner ring of the first sealed bearing. One end of the screw rod (12) is extended outwardly and fixedly connected to the first bevel gear (13). The second bevel gear (14) is arranged on one side of the first bevel gear (13) and meshedly connected to the first bevel gear (13). A knob assembly for driving the second bevel gear (14) to rotate is installed on the panel.
4. The combined sewing machine needle plate according to claim 3, characterized in that: The knob assembly comprises a rotating seat (7), a second sealed bearing (16) and a shaft rod. A groove (15) is provided on the outer side surface of the needle plate body (1) opposite to the second bevel gear (14). An axial hole is provided on the bottom surface of the groove (15). The second sealed bearing (16) is installed in the axial hole. The rotating seat (7) is arranged in the groove (15). The shaft rod is installed in the inner ring of the second sealed bearing (16). One end of the shaft rod is installed on the rotating seat (7), and the other end is installed on the second bevel gear.
5. The combined sewing machine needle plate according to claim 4, characterized in that: The outer end surface of the rotating seat (7) is arranged flush with the outer side surface of the needle plate body (1), and a cross groove is provided on the rotating seat (7).
6. The combined sewing machine needle plate according to claim 3, characterized in that: A plurality of reinforcing plates (6) are installed on the inner side surface of the needle plate body (1), and one end of the reinforcing plate (6) extends to one side surface of the horizontal plate (3).
7. The combined sewing machine needle plate according to claim 3, characterized in that: The cross sections of the slot, the positioning groove and the positioning column (8) are all arranged in a rectangular structure.