Improved pipe strip presser foot device

Abstract

The utility model discloses a modified pipe strip presser foot device, which belongs to the technical field of sewing equipment and comprises a presser foot base, a bottom plate is fixedly mounted at the bottom of the presser foot base, a screw rod is fixedly mounted at the top of the bottom plate, a worm wheel is screwed on the outer side of the screw rod, and a worm is screwed on the worm wheel. The rear side of an inner cavity of the presser foot base is rotationally connected with a worm matched with the worm gear, the outer side of the lead screw is in threaded connection with a movable plate, a connecting plate is fixedly installed on the right side of the movable plate, a limiting seat is fixedly installed at the bottom of the connecting plate, and cross rods are fixedly installed on the front side and the rear side of an inner cavity of the limiting seat. The front side and the rear side of the outer side of the transverse rod are movably sleeved with rectangular blocks, and the right sides of the rectangular blocks penetrate through the limiting seats and are fixedly provided with foot pieces. The pressure of the foot pieces can be conveniently adjusted, the device can be matched with pipe strips of different materials or thicknesses, the device can also be matched with pipe strips of different widths or diameters, frequent replacement of accessories is avoided, and the universality of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of sewing equipment technology, and in particular to a modified tube presser foot device. Background Technology

[0002] In the sewing processes of industries such as clothing, bags, and automotive interiors, it is often necessary to sew and fix tubular or strip-shaped materials.

[0003] Existing devices are inconvenient to adjust pressure, requiring tools to adjust the pressure foot, making it difficult to adapt to pipes of different materials or thicknesses. They also lack versatility, as a single pressure foot structure cannot accommodate pipes of different widths or diameters, necessitating frequent replacement of parts. Therefore, we propose a modified pipe pressure foot device to solve this problem. Utility Model Content

[0004] The purpose of this utility model is to provide a modified tube pressing foot device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A modified tubular bar presser foot device includes a presser foot base, a base plate fixedly installed at the bottom of the presser foot base, a lead screw fixedly installed at the top of the base plate, a worm gear screwed to the outer side of the lead screw, a worm adapted to the worm gear rotatably connected to the rear side of the inner cavity of the presser foot base, a movable plate screwed to the outer side of the lead screw, a connecting plate fixedly installed on the right side of the movable plate, a limit seat fixedly installed at the bottom of the connecting plate, crossbars fixedly installed on the front and rear sides of the inner cavity of the limit seat, rectangular blocks movably sleeved on the front and rear sides of the outer side of the crossbars, and a foot piece fixedly installed through the limit seat on the right side of the rectangular block.

[0007] Preferably, the top of the lead screw is fixedly connected to the top of the inner cavity of the presser foot base, a support block is fixedly installed on the left side of the presser foot base, a limit rod is fixedly installed at the bottom of the support block, the bottom of the limit rod passes through the moving plate and is fixedly connected to the top of the base plate, and the outer side of the limit rod slides in contact with the inside of the moving plate.

[0008] Preferably, positioning bolts are provided on the front and rear sides of the top of the limiting seat, and the bottom threads of the positioning bolts extend into the interior of the rectangular block, and the interior of the rectangular block slides in contact with the outer side of the crossbar.

[0009] Preferably, the front side of the worm gear moves through the pressure foot base and is fixedly mounted with a knob, and an anti-slip pad is fixedly embedded on the outside of the knob.

[0010] Preferably, an L-shaped frame is fixedly installed at the bottom left side of the connecting plate, and guide wheels are rotatably connected to the front and rear sides of the L-shaped frame.

[0011] Preferably, locking bolts are provided on both the left and right sides of the bottom of the presser foot base, and the top threads of the locking bolts penetrate the presser foot base.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, by rotating the knob in the forward direction, the knob drives the worm gear to rotate, the worm gear drives the matching worm wheel to rotate, the worm wheel drives the lead screw to rotate, the lead screw drives the screwed moving plate to move downward, the moving plate drives the connecting plate to move downward, the connecting plate drives the limit seat to move downward, and the limit seat drives the foot piece to move downward, which facilitates the adjustment of the pressure of the foot piece and can be adapted to pipes of different materials or thicknesses.

[0014] 2. In this utility model, the positioning bolt is rotated forward to move the positioning bolt away from the rectangular block and then removed. The rectangular block is then moved, which drives the foot piece to move. The rectangular block is then fixed by resetting the positioning bolt. The two sets of foot piece structures make it easy to adapt to pipes of different widths or diameters, avoiding the need for frequent replacement of parts and improving the versatility of the device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a modified tubular bar presser foot device proposed in this utility model;

[0016] Figure 2 This is a rear view structural diagram of a modified tubular bar presser foot device proposed in this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of a modified tubular bar presser foot device proposed in this utility model.

[0018] In the diagram: 1. Presser foot base; 2. Lead screw; 3. Base plate; 4. Worm gear; 5. Worm; 6. Knob; 7. Anti-slip pad; 8. Moving plate; 9. Connecting plate; 10. Limiting rod; 11. Support block; 12. Locking bolt; 13. Guide wheel; 14. Limiting seat; 15. Crossbar; 16. Rectangular block; 17. Foot piece; 18. Positioning bolt; 19. L-shaped frame. Detailed Implementation

[0019] 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.

[0020] Reference Figure 1-3A modified pipe pressing foot device includes a pressing foot base 1, a base plate 3 fixedly installed at the bottom of the pressing foot base 1, a lead screw 2 fixedly installed at the top of the base plate 3, a worm gear 4 screwed to the outside of the lead screw 2, a worm 5 adapted to the worm gear 4 rotatably connected to the rear side of the inner cavity of the pressing foot base 1, a movable plate 8 screwed to the outside of the lead screw 2, a connecting plate 9 fixedly installed on the right side of the movable plate 8, a limiting seat 14 fixedly installed at the bottom of the connecting plate 9, a crossbar 15 fixedly installed on the front and rear sides of the inner cavity of the limiting seat 14, a rectangular block 16 movably sleeved on the front and rear sides of the outer side of the crossbar 15, and a foot piece 17 fixedly installed through the limiting seat 14 on the right side of the rectangular block 16.

[0021] In this embodiment, the top of the lead screw 2 is fixedly connected to the top of the inner cavity of the presser foot base 1. A support block 11 is fixedly installed on the left side of the presser foot base 1. A limit rod 10 is fixedly installed at the bottom of the support block 11. The bottom of the limit rod 10 passes through the moving plate 8 and is fixedly connected to the top of the base plate 3. The outer side of the limit rod 10 slides in contact with the inside of the moving plate 8. The limit rod 10 can limit the moving plate 8, improving the stability of the moving plate 8 moving up and down. Positioning bolts 18 are provided on the front and rear sides of the top of the limit seat 14. The bottom thread of the positioning bolt 18 extends into the inside of the rectangular block 16. The inside of the rectangular block 16 slides in contact with the outer side of the crossbar 15. The crossbar 15 can limit the rectangular block 16, improving the stability of the rectangular block 16 moving back and forth.

[0022] In this embodiment, the front side of the worm gear 5 moves through the presser foot base 1 and is fixedly installed with a knob 6. An anti-slip pad 7 is fixedly embedded on the outside of the knob 6. The anti-slip pad 7 increases the friction between the worker's hand and the knob 6, making it easier for the worker to rotate the knob 6. An L-shaped frame 19 is fixedly installed on the bottom left side of the connecting plate 9. Guide wheels 13 are rotatably connected to the front and rear sides of the L-shaped frame 19. The cooperation between the L-shaped frame 19 and the guide wheels 13 facilitates the directional movement of the tube and avoids tube deviation. Locking bolts 12 are provided on the left and right sides of the bottom of the presser foot base 1. The top thread of the locking bolt 12 passes through the presser foot base 1. The locking bolt 12 facilitates the installation of the presser foot base 1.

[0023] In this embodiment, during use, the presser foot base 1 is fixed to the sewing machine head by locking bolt 12. Rotating the knob 6 clockwise causes the worm gear 5 to rotate, which in turn causes the matching worm wheel 4 to rotate. The worm wheel 4 causes the lead screw 2 to rotate, which in turn causes the screwed moving plate 8 to move downward. The moving plate 8 causes the connecting plate 9 to move downward, which in turn causes the limiting seat 14 to move downward. The limiting seat 14 causes the foot piece 17 to move downward, facilitating the adjustment of the pressure of the foot piece 17. This allows it to be adapted to tubes of different materials or thicknesses. By rotating the positioning bolt 18 clockwise, the positioning bolt 18 is moved away from the rectangular block 16 and then removed. The rectangular block 16 is then moved, causing the foot piece 17 to move. Finally, the positioning bolt 18 is reset to fix the rectangular block 16. The two sets of foot pieces 17 are designed to be adapted to tubes of different widths or diameters, avoiding frequent replacement of parts and improving the versatility of the device.

[0024] The above provides a detailed description of the modified tubing presser foot device provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A modified tubing presser foot device, comprising a presser foot base (1), characterized in that: A base plate (3) is fixedly installed at the bottom of the presser foot base (1), and a lead screw (2) is fixedly installed at the top of the base plate (3). A worm gear (4) is screwed to the outside of the lead screw (2). A worm (5) that is compatible with the worm gear (4) is rotatably connected to the rear side of the inner cavity of the presser foot base (1). A moving plate (8) is screwed to the outside of the lead screw (2). A connecting plate (9) is fixedly installed on the right side of the moving plate (8). A limiting seat (14) is fixedly installed at the bottom of the connecting plate (9). A crossbar (15) is fixedly installed on the front and rear sides of the inner cavity of the limiting seat (14). A rectangular block (16) is movably sleeved on the front and rear sides of the outer side of the crossbar (15). A foot piece (17) is fixedly installed through the limiting seat (14) on the right side of the rectangular block (16).

2. The modified tubing presser foot device according to claim 1, characterized in that: The top of the lead screw (2) is fixedly connected to the top of the inner cavity of the presser foot base (1). A support block (11) is fixedly installed on the left side of the presser foot base (1). A limit rod (10) is fixedly installed at the bottom of the support block (11). The bottom of the limit rod (10) passes through the moving plate (8) and is fixedly connected to the top of the base plate (3). The outer side of the limit rod (10) slides in contact with the inside of the moving plate (8).

3. The modified tubing presser foot device according to claim 1, characterized in that: Positioning bolts (18) are provided on the front and rear sides of the top of the limiting seat (14). The bottom thread of the positioning bolts (18) extends into the interior of the rectangular block (16), and the interior of the rectangular block (16) slides in contact with the outer side of the crossbar (15).

4. The modified tubing presser foot device according to claim 1, characterized in that: The front side of the worm gear (5) moves through the presser foot base (1) and is fixedly mounted with a knob (6), and an anti-slip pad (7) is fixedly embedded on the outside of the knob (6).

5. A modified tubing presser foot device according to claim 1, characterized in that: An L-shaped frame (19) is fixedly installed on the bottom left side of the connecting plate (9), and guide wheels (13) are rotatably connected to the front and rear sides of the L-shaped frame (19).

6. The modified tubing presser foot device according to claim 1, characterized in that: Locking bolts (12) are provided on both the left and right sides of the bottom of the presser foot base (1), and the top thread of the locking bolts (12) penetrates the presser foot base (1).

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