Embedded temperature control quilting machine presser foot

Abstract

The utility model discloses an embedded temperature control quilting machine presser foot, relates to the technical field of textile, and aims to solve the technical problems of tedious operation, low efficiency and insufficient stability caused by the fact that screw rod adjustment depends on an external tool in a traditional open type roller presser foot, and the embedded temperature control quilting machine presser foot comprises a foot plate, and a support is arranged at one end of the upper surface of the foot plate. A connecting mechanism is arranged on the support, an adjusting mechanism is arranged on the side face of the support, and a pulling mechanism is arranged on the side face of the adjusting mechanism. A directional locking linkage structure of the ratchet wheel and the pawls A / B is combined with the reversing block to switch meshing states of the pawls and limit clockwise or anticlockwise one-way rotation of the lead screw, lifting adjustment of the inclination angle of the foot plate is achieved, the rotary handle is designed in a foldable hinged mode, a force application arm is provided when a working position is unfolded, and space interference is reduced when a non-working position is folded. The elastic pre-tightening mechanism ensures the dynamic meshing stability of the pawl and the ratchet wheel, an external tool is replaced by mechanical self-locking and integrated operation, and the adjusting efficiency and reliability are improved.

Description

Technical Field

[0001] This utility model relates to the field of textile technology, and more specifically, to an embedded temperature-controlled presser foot for a quilting machine. Background Technology

[0002] A quilting machine is a specialized sewing device used to secure textiles and filling layers. Its core function is to enhance the warmth, aesthetics, and durability of a product through stitching. During the quilting process, the presser foot is a crucial component, responsible for stabilizing the material and assisting in fabric feeding. Common presser foot types include spring presser feet, Teflon presser feet, and open roller presser feet. Among these, open roller presser feet, with their roller structure, reduce fabric friction and are particularly suitable for the efficient sewing of fluffy fillings.

[0003] Currently, most open roller presser feet use a design that combines a lead screw and a spring for adjustment. The lead screw is manually rotated to change the presser foot angle, thereby adjusting the pressure distribution on the material. However, in practical use, lead screw adjustment requires external tools (such as wrenches), which can lead to problems such as tools being easily lost and cumbersome operation. Therefore, and considering the needs of modern IoT and smart manufacturing, we propose an embedded temperature-controlled presser foot for quilting machines. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide an embedded temperature-controlled presser foot for quilting machines, so as to solve the technical problems of traditional open roller presser feet, which are cumbersome to operate, inefficient and unstable due to the reliance on external tools for screw adjustment.

[0005] To solve the above technical problems, this utility model provides the following technical solution: an embedded temperature-controlled quilting machine presser foot, including a foot plate, a bracket arranged at one end of the upper surface of the foot plate, a connecting mechanism arranged on the bracket, an adjustment mechanism arranged on the side of the bracket, and a pulling mechanism arranged on the side of the adjustment mechanism;

[0006] The adjustment mechanism includes a plate fixed to the front side of the support, a threaded sleeve is installed through the plate, a lead screw is inserted into the threaded sleeve, a housing is arranged at the upper end of the lead screw, a ratchet is arranged in the middle of the housing and the ratchet is fixed on the lead screw, a pawl A is rotatably installed on one side of the front end of the housing, and a pawl B is rotatably installed on the other side of the front end of the housing.

[0007] Preferably, the foot plate has a cavity inside, a heating element is arranged through one side of the cavity, and a temperature sensor is arranged through the other side of the cavity.

[0008] Preferably, the connecting mechanism includes a frame, the frame having an open end and a notch on its side.

[0009] Preferably, bearings are arranged on both the upper and lower surfaces of the outer shell, a lead screw is inserted into the bearing, a groove is provided on the outer side of the shell, and a rotatable handle is rotatably installed in the groove.

[0010] Preferably, a reversing block is arranged in the middle of the front end inside the housing, and a push block is connected to the reversing block, with the push block arranged on the upper surface of the outer side of the housing.

[0011] Preferably, the side of the pawl A is connected to the inside of the housing via spring A, and the side of the pawl B is connected to the inside of the housing via spring B.

[0012] Preferably, the pulling mechanism includes hook A, hook B and spring C. Hook A is arranged at the rear end of the side of the bracket, hook B is arranged at one end of the upper surface of the foot plate, and spring C is connected between hook A and hook B.

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

[0014] 1. This utility model optimizes the tilting method of the lead screw adjustment foot by designing a ratchet, pawl A, and pawl B structure. The operator releases the throttle from the groove and rotates it, moving the reversing block to release either pawl A or pawl B from its limit position and engage it with the ratchet. At this time, the ratchet is unidirectionally locked by pawl A or pawl B and can only rotate counterclockwise or clockwise, driving the lead screw to move up or down along the thread engagement. When resetting clockwise or counterclockwise, pawl A or pawl B will disengage from its limit position, and the throttle will rotate freely without driving the lead screw, achieving tool-free adjustment in confined spaces. This structure achieves bidirectional control through a mechanical self-locking mechanism. The throttle is integrated with the equipment, eliminating the need for external tools and reducing the risk of operational interruption.

[0015] 2. This utility model achieves bidirectional control of the screw rotation by designing a reversing block and a push block structure. The operator pushes the push block to switch the position of the reversing block, so that pawl A or pawl B engages with the ratchet teeth. When pawl A is engaged, the throttle rotation limits the screw rotation to only counterclockwise, releasing the preload of spring C and resetting the foot plate. When switching to pawl B engagement, the screw rotates clockwise, and the tilt angle is adjusted by driving the foot plate down through the thread. This mechanism integrates rotation control and tilt angle adjustment into a single mechanical operation through the directional locking characteristics of the ratchet-pawl, avoiding the risk of misalignment.

[0016] 3. This utility model designs a throttle structure, in which the throttle is hinged to the side of the housing via a pivot. In the working state, it unfolds to a horizontal position to provide a lever arm, and in the non-working state, it can be folded to a vertical position to reduce spatial interference. Through the design of spring A and spring B, spring A and spring B act on both sides of pawl A and pawl B respectively. When the push block drives the reversing block to move, the corresponding spring generates a reverse force, so that pawl A and pawl B maintain contact engagement with the ratchet teeth, ensuring the synchronicity of power transmission and the stability of directional locking. This design achieves simultaneous improvement in operating space optimization and transmission reliability through the synergistic effect of motion trajectory constraint and elastic preload. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main appearance structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0019] Figure 3 This is a top view schematic diagram of the footplate structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the adjustment mechanism structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the shell of this utility model;

[0022] Figure 6 This is a top view schematic diagram of the pawl A engaging inside the ratchet wheel according to this utility model;

[0023] Figure 7 This is a top view schematic diagram of the ratchet pawl B engaging with the ratchet wheel according to this utility model;

[0024] Figure 8 This is a schematic diagram of the shell planar structure of this utility model.

[0025] Explanation of the labels in the diagram:

[0026] 1. Foot plate; 2. Bracket; 3. Connecting mechanism; 301. Insert frame; 302. Notch; 4. Adjustment mechanism; 401. Flat plate; 402. Threaded sleeve; 403. Lead screw; 404. Housing; 405. Ratchet; 406. Pad A; 407. Pad B; 408. Bearing; 409. Groove; 4010. Thruster; 4011. Reversing block; 4012. Push block; 4013. Spring A; 4014. Spring B; 5. Pulling mechanism; 501. Hook A; 502. Hook B; 503. Spring C; 6. Cavity; 7. Heating element; 8. Temperature sensor. Detailed Implementation

[0027] like Figures 1 to 8As shown, the present invention relates to an embedded temperature-controlled quilting machine presser foot, including a foot plate 1, a bracket 2 arranged at one end of the upper surface of the foot plate 1, a connecting mechanism 3 arranged on the bracket 2, an adjustment mechanism 4 arranged on the side of the bracket 2, and a pulling mechanism 5 arranged on the side of the adjustment mechanism 4.

[0028] The adjustment mechanism 4 includes a flat plate 401 fixed to the front side of the bracket 2. A threaded sleeve 402 is installed through the flat plate 401. A lead screw 403 is inserted into the threaded sleeve 402. A housing 404 is arranged at the upper end of the lead screw 403. A ratchet 405 is arranged in the middle of the housing 404 and is fixed to the lead screw 403. A pawl A406 is rotatably installed on one side of the front end of the housing 404, and a pawl B407 is rotatably installed on the other side of the front end of the housing 404. This invention optimizes the tilting method of the lead screw 403 by designing a ratchet 405, pawl A406, and pawl B407 structure. The operator releases the throttle 4010 from the groove 409 and rotates it, actuating the reversing block 4011 to release either pawl A406 or pawl B407 from their limit positions and engage with the ratchet 405. At this time, the ratchet 405 is unidirectionally locked by pawl A406 or pawl B407 and can only rotate counterclockwise or clockwise, driving the lead screw 403 to rise or fall along the threaded engagement. When resetting clockwise or counterclockwise, pawl A406 or pawl B407 will disengage from their limit positions, and the throttle 4010 will rotate freely without driving the lead screw 403, achieving tool-free adjustment in confined spaces. This structure achieves bidirectional control through a mechanical self-locking mechanism. The throttle 4010 is integrated with the equipment, eliminating the need for external tools and reducing the risk of operational interruption.

[0029] In an embodiment of this invention, a cavity 6 is provided inside the foot plate 1. A heating element 7 is arranged through one side of the cavity 6, and a temperature sensor 8 is arranged through the other side of the cavity 6. By designing the structure of the heating element 7 and the temperature sensor 8, this invention allows the heating element 7 to heat the fabric when the quilting machine uses the foot plate 1 to assist in fabric feeding, while the temperature sensor 8 monitors the temperature of the fabric being heated by the heating element 7. It receives temperature control commands from the cloud or local terminal via the Internet of Things (IoT) and dynamically adjusts the temperature of the foot plate 1 according to the fabric type (e.g., cotton, synthetic fiber) and sewing speed. This avoids high-temperature damage to the fabric or low-temperature deformation of the needle holes, achieving adaptability to the sewing needs of different fabrics, improving quilting quality, and optimizing temperature parameters through big data analysis, thus reducing manual adjustment time.

[0030] In an embodiment of this utility model, the connecting mechanism 3 includes a frame 301, which has an open-end structure and a notch 302 on its side. This utility model designs the frame 301 and the notch 302 such that the open-end structure of the frame 301 allows the rod at the output end of the quilting machine to be directly inserted laterally. Bolts are then inserted into the notch 302 to fix the rod inside the frame 301, thus completing the connection and installation between the foot plate 1 and the quilting machine. The installation structure is simple, easy for operators to use, and highly adaptable to different installation positions.

[0031] In an embodiment of this utility model, bearings 408 are arranged on both the upper and lower outer surfaces of the housing 404, a lead screw 403 is inserted into the bearing 408, and a groove 409 is provided on the outer side of the housing 404, and a rotatable handle 4010 is rotatably installed in the groove 409. This invention, through the design of the bearing 408 structure, allows the housing 404 to rotate independently on the lead screw 403. When the housing 404 rotates under the rotational force applied by the operator to the throttle 4010, it will not rotate with the lead screw 403. Only when the pawls A406 and B407 are engaged with the ratchet 405 can the housing 404 rotate with the lead screw 403, thus achieving the effect of separating the rotational force. The bearing 408, installed on the lower surface of the housing 404, is provided with a limiting block, which is fixed to the lead screw 403. In this way, the bearing 408 can rely on this to rotate the housing 404, preventing the housing 404 from falling off the top of the lead screw 403. Through the design of the throttle 4010 structure, the throttle 4010 is hinged to the side of the housing 404 via a pivot. In the working state, it is unfolded to a horizontal position to provide a lever arm, and in the non-working state, it can be folded to a vertical position to reduce spatial interference.

[0032] In an embodiment of this utility model, a reversing block 4011 is arranged in the middle of the front end inside the housing 404, and a push block 4012 is connected to the reversing block 4011, and the push block 4012 is arranged on the upper surface of the outer side of the housing 404. This invention achieves bidirectional control of the screw 403's direction by designing a reversing block 4011 and a push block 4012. The operator pushes the push block 4012 to switch the position of the reversing block 4011, causing the pawl A406 or pawl B407 to engage with the ratchet 405. When pawl A406 is engaged, the throttle 4010 rotates, limiting the screw 403 to rotate only counterclockwise, releasing the preload of spring C503 and resetting the foot plate 1. When switching to pawl B407 engagement, the screw 403 rotates clockwise, and the foot plate 1 is moved down via the thread to adjust the tilt angle. This mechanism integrates rotation control and tilt angle adjustment into a single mechanical operation through the directional locking characteristics of the ratchet 405-pawl, avoiding the risk of misalignment.

[0033] In this embodiment of the invention, the side of pawl A406 is connected to the inside of housing 404 via spring A4013, and the side of pawl B407 is connected to the inside of housing 404 via spring B4014. This invention designs the structures of springs A4013 and B4014, which act on the sides of pawls A406 and B407 respectively. When the push block 4012 drives the reversing block 4011 to displacement, the corresponding springs generate a reverse force, ensuring that pawls A406 and B407 maintain contact engagement with the ratchet teeth of the ratchet wheel 405. This ensures the synchronicity of power transmission and the stability of directional locking. This design, through the synergistic effect of motion trajectory constraint and elastic preload, achieves simultaneous improvement in operating space optimization and transmission reliability.

[0034] In an embodiment of this utility model, the pulling mechanism 5 includes hook A501, hook B502, and spring C503. Hook A501 is arranged at the rear end of the side of the bracket 2, and hook B502 is arranged at one end of the upper surface of the foot plate 1. Spring C503 connects hook A501 and hook B502. By designing the structure of hook A501, spring C503, and hook B502, when the lead screw 403 rises and releases the push on the foot plate 1, spring C503 will pull the foot plate 1 and reset it. Its elasticity releases the tilt angle of the foot plate 1, achieving the effect of a reverse force.

[0035] Working Principle: This embodiment provides an embedded temperature-controlled presser foot for a quilting machine. When using it, the operator first needs to install the foot plate 1 on the quilting machine, insert the output power rod of the quilting machine into the insert frame 301, and then screw bolts into the notch 302 to fix the foot plate 1 to the rod. After fixing, this invention is ready for use. If the operator needs to adjust the tilt angle of the foot plate 1, the operator can stop the quilting machine and move the push block 4012 with their finger. The push block 4012 then rotates the reversing block 4011 towards the pawl. When B407 is rotated, the pawl B407 is released and pushed by the spring B4014, causing one end of it to engage inside the ratchet 405. After engagement, the operator can directly manipulate the throttle 4010 with their fingers to rotate it from a vertical to a horizontal position. The operator can then pinch the throttle 4010 and apply a clockwise rotational force. This clockwise force is simultaneously transmitted to the housing 404, causing the pawl B407, installed inside the housing 404, to push the ratchet 405 to rotate clockwise. The clockwise rotation causes the internally fixed lead screw 403 to rotate as well. The clockwise rotation of the lead screw 403 causes it to engage with the threaded sleeve 402 and descend. The descending lead screw 403 pushes the foot plate 1, which rotates upwards using the bracket 2 as a fulcrum, thus changing its tilt angle and adjusting the pressure distribution on the material. When the tilt angle of the foot plate 1 needs to be changed to downwards, the operator moves the push block 4012 to rotate the reversing block 4011 towards the pawl A406. At this time, the pawl A406 is released from its restraint and is activated by the spring A401. 3. Push and let one end of it lock onto ratchet 405, while pawl B407 will be squeezed by reversing block 4011 and let one end of it disengage from ratchet 405. After one end of pawl A406 is locked into ratchet 405, the operator continues to turn throttle 4010 and apply counterclockwise rotation force. In this way, pawl A406 will push ratchet 405 to rotate counterclockwise, causing screw 403 to rotate counterclockwise in screw sleeve 402 and rise. After rising, the pushing and pressing on foot plate 1 is released, so foot plate 1 will be pulled back to its original position by spring C503.

[0036] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. An embedded temperature-controlled quilting machine presser foot, comprising a foot plate (1), characterized in that: A bracket (2) is arranged on one end of the upper surface of the foot plate (1), a connecting mechanism (3) is arranged on the bracket (2), an adjustment mechanism (4) is arranged on the side of the bracket (2), and a pulling mechanism (5) is arranged on the side of the adjustment mechanism (4). The adjustment mechanism (4) includes a plate (401) fixed to the front side of the bracket (2). A threaded sleeve (402) is installed through the plate (401). A lead screw (403) is inserted into the threaded sleeve (402). A housing (404) is arranged at the upper end of the lead screw (403). A ratchet (405) is arranged in the middle of the housing (404) and the ratchet (405) is fixed on the lead screw (403). A pawl A (406) is rotatably installed on one side of the front end of the housing (404), and a pawl B (407) is rotatably installed on the other side of the front end of the housing (404).

2. The embedded temperature-controlled quilting machine presser foot according to claim 1, characterized in that: The foot plate (1) has a cavity (6) inside. A heating element (7) is arranged through one side of the cavity (6), and a temperature sensor (8) is arranged through the other side of the cavity (6).

3. The embedded temperature-controlled presser foot of a quilting machine according to claim 2, characterized in that: The connecting mechanism (3) includes a frame (301), which has an open-end structure and a notch (302) on its side.

4. The embedded temperature-controlled quilting machine presser foot according to claim 3, characterized in that: Bearings (408) are arranged on both the upper and lower surfaces of the outer shell (404). A lead screw (403) is inserted into the bearing (408). A groove (409) is provided on the outer side of the shell (404). A throttle (4010) is rotatably installed in the groove (409).

5. The embedded temperature-controlled quilting machine presser foot according to claim 4, characterized in that: A reversing block (4011) is arranged in the middle of the front end inside the housing (404). A push block (4012) is connected to the reversing block (4011), and the push block (4012) is arranged on the upper surface of the outer side of the housing (404).

6. The embedded temperature-controlled presser foot of a quilting machine according to claim 5, characterized in that: The side of the pawl A (406) is connected to the inside of the housing (404) via spring A (4013), and the side of the pawl B (407) is connected to the inside of the housing (404) via spring B (4014).

7. The embedded temperature-controlled quilting machine presser foot according to claim 6, characterized in that: The pulling mechanism (5) includes hook A (501), hook B (502) and spring C (503). Hook A (501) is arranged at the rear end of the side of the bracket (2), hook B (502) is arranged at one end of the upper surface of the foot plate (1), and spring C (503) is connected between hook A (501) and hook B (502).

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