Modularized round head buttonholing machine needle plate assembly

Abstract

The utility model discloses a modularized round head buttonholing machine needle plate assembly which comprises a buttonholing machine base, a plate needle assembly is movably installed on one side of the upper end face of the buttonholing machine base through a moving mechanism, the plate needle assembly comprises a fixing base, and a through groove is formed in the upper end face of the fixing base in a penetrating mode. Transverse grooves are formed in the front end face and the rear end face of the inner wall of the through groove correspondingly, a connecting plate is movably installed on the upper end face of each transverse groove through a sliding disassembly mechanism, each sliding disassembly mechanism comprises pressing plates, and the pressing plates are installed on the two sides of the corresponding transverse groove through first strip-shaped grooves; the pressing plates are movably connected with the inner walls of the first strip-shaped grooves through first springs, clamping plates are installed on the opposite sides of every two pressing plates, and two clamping grooves are symmetrically formed in the opposite sides of the outer surfaces of the two connecting plates. The small needle plate can be conveniently and independently replaced, the cost is saved, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the field of needle plate assembly technology, specifically a modular round-head buttonhole machine needle plate assembly. Background Technology

[0002] Buttonhole machines are a crucial piece of equipment in garment machinery. They are primarily used to process buttonholes in various garments and are categorized into flat-head and round-head types, and further divided into those with and without a finishing edge. The round-head buttonhole machine is a specialized industrial sewing machine designed for sewing buttonholes in medium-thickness garments. The term "round-head" refers to the circular shape of the buttonhole's front end. Its characteristics include aesthetically pleasing buttonhole shapes and even, strong stitches. Round-head buttonhole machines are equipped with a counterweight needle plate assembly, which includes a needle plate holder and a small needle plate.

[0003] During the sewing process, there is a certain probability that the hole wall will be punctured or pierced due to the bending or slanting of the needle. Damage to the small needle plate will cause the sewing stitches to be unsightly or unable to form stitches properly, and it needs to be replaced.

[0004] However, most existing mounting bases and small needle plates are integrally molded structures. Replacing the small needle plate requires replacing the entire needle plate mounting base, which is costly. In addition, there are limit plates in the needle plate assembly, which need to be removed before the small needle plate can be replaced, making the operation cumbersome, time-consuming and labor-intensive. Therefore, it does not meet the existing needs. In response, we have proposed a modular round-head buttonhole machine needle plate assembly. Utility Model Content

[0005] The purpose of this utility model is to provide a modular round-head buttonhole machine needle plate assembly to solve the problems mentioned in the background art, such as the fact that most of the fixed base and small needle plate are integrally formed structures, and that replacing the small needle plate requires replacing the entire needle plate fixed base, which is costly. In addition, there is a limit plate in the needle plate assembly, which needs to be removed before the small needle plate can be replaced, which is troublesome, time-consuming and labor-intensive.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular round-head keyhole machine needle plate assembly, including a keyhole machine base, a needle plate assembly movably mounted on one side of the upper surface of the keyhole machine base via a moving mechanism, the needle plate assembly including a fixed seat, a through groove being provided through the upper surface of the fixed seat, a transverse groove being provided on both the front and rear surfaces of the inner wall of the through groove, a connecting plate being movably mounted on the upper surface of the transverse groove via a sliding disassembly mechanism, the sliding disassembly mechanism including a pressure plate, the pressure plate being mounted on both sides of the transverse groove via a first strip groove, the pressure plate being movably connected to the inner wall of the first strip groove via a first spring, a retaining plate being installed on the opposite side of every two pressure plates, two retaining grooves being symmetrically provided on the opposite side of the outer surfaces of the two connecting plates, a small needle plate being fixedly connected to the opposite side of the outer surfaces of the two connecting plates, and a limiting plate being installed on one side above the needle plate assembly.

[0007] Preferably, the moving mechanism includes a threaded rod, which is installed in front of and behind the upper end face of the keyhole machine base through a second groove, and a threaded plate is sleeved on the outer surface of the threaded rod.

[0008] Preferably, the upper end face of the threaded plate is fixedly connected to the lower end face of the fixed seat, a motor is installed on one side of the second groove through the motor cavity, the output end of the motor is fixedly connected to one end of the threaded rod through a coupling, and the other end of the threaded rod is rotatably connected to the inner wall of the second groove through a bearing.

[0009] Preferably, a plurality of second springs are installed on the upper end face of the transverse groove, and the first strip groove and the transverse groove are connected through a connecting groove.

[0010] Preferably, the size of the card plate is smaller than the size of the connecting groove, and the card plate can be inserted into the inside of the card groove.

[0011] Preferably, a semi-circular groove is provided above the opposite side of the outer surface of each pair of pressure plates.

[0012] Preferably, sliders are installed on both sides of the outer surface of the pressure plate, and sliding grooves are provided on both sides of the inner wall of the first strip groove, with the sliders engaging the inner side of the sliding grooves.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model, by incorporating a moving mechanism and a sliding disassembly mechanism, allows for easy replacement of the small needle plate. First, controlling the motor switch rotates the threaded rod, causing the threaded plate to move to one side of the outer surface of the threaded rod, thus moving the fixed seat to one side and extending it from below the limiting plate. Simultaneously, the four pressure plates are moved away from the connecting plate via the semi-circular groove, causing the locking plate to move. The locking plate leaves the inner side of the slot, releasing the limiting effect on the connecting plate. Under the action of the second spring, the connecting plate is pushed upwards, allowing the user to remove the small needle plate from the inside of the through groove for replacement. The new small needle plate is placed above the through groove, with the connecting plate aligned with the inner side of the horizontal groove. The four pressure plates are moved outwards via the semi-circular groove, causing the connecting plate to engage with the inner side of the horizontal groove. The second spring is compressed, releasing the pressure plates. Under the action of the first spring, the pressure plates move the locking plate closer to the connecting plate, passing through the connecting groove and engaging with the inner side of the slot, thus limiting the connection plate. The small needle plate installation is complete. This utility model facilitates the individual replacement of the small needle plate, saving costs, time, and effort. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the sliding disassembly mechanism of this utility model;

[0017] Figure 3 This is a top sectional view of the sliding disassembly mechanism of this utility model;

[0018] Figure 4 This is a side sectional view of the plate needle assembly of this utility model;

[0019] Figure 5 This is a partial structural schematic diagram of the transverse groove of this utility model.

[0020] In the diagram: 1. Limiting plate; 2. Plate needle assembly; 201. Small needle plate; 202. Fixed base; 3. Through groove; 4. Sliding disassembly mechanism; 401. First spring; 402. First strip groove; 403. Semicircular groove; 404. Pressure plate; 405. Clamping plate; 406. Connecting groove; 407. Clamping groove; 408. Second spring; 5. Connecting plate; 6. Horizontal groove; 7. Buttonhole machine base; 8. Moving mechanism; 801. Threaded plate; 802. Threaded rod; 803. Second strip groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] The motor (model 68KTYZ) mentioned in this utility model can be obtained from the market or through private customization.

[0023] Please see Figures 1 to 5 This utility model provides an embodiment of a modular round-head keyhole machine needle plate assembly, including a keyhole machine base 7. A needle plate assembly 2 is movably installed on one side of the upper surface of the keyhole machine base 7 via a moving mechanism 8. The needle plate assembly 2 includes a fixed seat 202. A through groove 3 is provided through the upper surface of the fixed seat 202. A transverse groove 6 is provided on both the front and rear surfaces of the inner wall of the through groove 3. A connecting plate 5 is movably installed on the upper surface of the transverse groove 6 via a sliding disassembly mechanism 4. The sliding disassembly mechanism 4 includes a pressure plate 404. The pressure plate 404 is installed on both sides of the transverse groove 6 via a first strip groove 402. The pressure plate 404 is movably connected to the inner wall of the first strip groove 402 via a first spring 401. A retaining plate 405 is installed on the opposite side of every two pressure plates 404. Two retaining grooves 407 are symmetrically provided on the opposite sides of the outer surfaces of the two connecting plates 5. A small needle plate 201 is fixedly connected to the opposite side of the outer surfaces of the two connecting plates 5. A limiting plate 1 is installed on one side above the needle plate assembly 2.

[0024] The moving mechanism 8 includes a threaded rod 802, which is installed in front of and behind the upper surface of the buttonhole machine base 7 via a second groove 803. A threaded plate 801 is fitted on the outer surface of the threaded rod 802. The upper surface of the threaded plate 801 is fixedly connected to the lower surface of the fixed seat 202. A motor is installed on one side of the second groove 803 via a motor cavity. The output end of the motor is fixedly connected to one end of the threaded rod 802 via a coupling. The other end of the threaded rod 802 is rotatably connected to the inner wall of the second groove 803 via a bearing. When the motor is working, it can drive the threaded rod 802 to rotate. The threaded plate 801 moves on the outer surface of the threaded rod 802, which can drive the fixed seat 202 to move.

[0025] Multiple second springs 408 are installed on the upper end face of the transverse groove 6. The first strip groove 402 is connected to the transverse groove 6 through the connecting groove 406. The size of the clamping plate 405 is smaller than the size of the connecting groove 406. The clamping plate 405 can be inserted into the inside of the clamping groove 407. The clamping plate 405 can pass through the inside of the connecting groove 406 to limit the position of the connecting plate 5.

[0026] A semi-circular groove 403 is provided above the opposite side of the outer surface of each pair of pressure plates 404, through which the pressure plates 404 can be moved.

[0027] Slider blocks are installed on both sides of the outer surface of the pressure plate 404, and sliding grooves are provided on both sides of the inner wall of the first groove 402. The sliders are engaged in the inner side of the sliding grooves to improve the stability of the pressure plate 404 moving inside the first groove 402.

[0028] When using this modular round-head buttonhole machine needle plate assembly, first connect the power supply. Equipped with a moving mechanism 8 and a sliding disassembly mechanism 4, when the small needle plate 201 needs to be replaced, first control the motor switch to rotate the threaded rod 802. The threaded plate 801 moves to one side of the outer surface of the threaded rod 802, causing the fixed seat 202 to move to one side and extend from below the limiting plate 1. Simultaneously, the four pressure plates 404 move away from the connecting plate 5 through the semi-circular groove 403, causing the clamping plate 405 to move. The clamping plate 405 leaves the inner side of the clamping groove 407, releasing the limiting effect on the connecting plate 5. Under the action of the second spring 408, the connecting plate 5 is pushed upwards, allowing the user to... The small needle plate 201 can be removed from the inside of the through groove 3 and replaced. The new small needle plate 201 is placed above the through groove 3, and the connecting plate 5 is aligned with the inside of the horizontal groove 6. The four pressure plates 404 are moved outward through the semi-circular groove 403. The connecting plate 5 is inserted into the inside of the horizontal groove 6, the second spring 408 is compressed, and the pressure plate 404 is released. Under the action of the first spring 401, the pressure plate 404 drives the clamping plate 405 to move closer to the connecting plate 5. The clamping plate 405 passes through the connecting groove 406 and is inserted into the inside of the clamping groove 407, limiting the connection plate 5. The installation of the small needle plate 201 is completed. This utility model facilitates the replacement of the small needle plate 201 separately, saves costs, time and effort.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A modular round-head buttonhole machine needle plate assembly, comprising a buttonhole machine base (7), characterized in that: A pin assembly (2) is movably mounted on one side of the upper surface of the keyhole machine base (7) via a moving mechanism (8). The pin assembly (2) includes a fixed base (202). A through groove (3) is provided through the upper surface of the fixed base (202). A transverse groove (6) is provided on both the front and rear surfaces of the inner wall of the through groove (3). A connecting plate (5) is movably mounted on the upper surface of the transverse groove (6) via a sliding disassembly mechanism (4). The sliding disassembly mechanism (4) includes a pressure plate (404). The pressure plate (404) is connected to the first... The groove (402) is installed on both sides of the transverse groove (6). The pressure plate (404) is movably connected to the inner wall of the first groove (402) by the first spring (401). A clamping plate (405) is installed on the opposite side of each pair of pressure plates (404). Two clamping grooves (407) are symmetrically arranged on the opposite side of the outer surface of the two connecting plates (5). A small needle plate (201) is fixedly connected to the opposite side of the outer surface of the two connecting plates (5). A limiting plate (1) is installed on one side above the plate needle assembly (2).

2. The modular round-head buttonhole machine needle plate assembly according to claim 1, characterized in that: The moving mechanism (8) includes a threaded rod (802), which is installed in front of and behind the upper end face of the keyhole machine base (7) through a second groove (803). A threaded plate (801) is sleeved on the outer surface of the threaded rod (802).

3. A modular round-head keyhole machine needle plate assembly according to claim 2, characterized in that: The upper end face of the threaded plate (801) is fixedly connected to the lower end face of the fixed seat (202). A motor is installed on one side of the second groove (803) through the motor cavity. The output end of the motor is fixedly connected to one end of the threaded rod (802) through a coupling. The other end of the threaded rod (802) is rotatably connected to the inner wall of the second groove (803) through a bearing.

4. The modular round-head keyhole machine needle plate assembly according to claim 1, characterized in that: Multiple second springs (408) are installed on the upper end face of the transverse groove (6), and the first strip groove (402) and the transverse groove (6) are connected through a connecting groove (406).

5. A modular round-head keyhole machine needle plate assembly according to claim 4, characterized in that: The size of the card plate (405) is smaller than the size of the connecting groove (406), and the card plate (405) can be inserted into the inside of the card groove (407).

6. A modular round-head keyhole machine needle plate assembly according to claim 1, characterized in that: A semi-circular groove (403) is provided above the opposite side of the outer surface of each pair of pressure plates (404).

7. A modular round-head keyhole machine needle plate assembly according to claim 1, characterized in that: Slider blocks are installed on both sides of the outer surface of the pressure plate (404), and sliding grooves are provided on both sides of the inner wall of the first strip groove (402), and the sliders are engaged in the inner side of the sliding grooves.

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