Elastic connection mechanism of free-set gatherer
By using the interference fit between the insert plate and the socket, the cumbersome installation and disassembly of the non-threaded collector is solved, enabling fast and reliable connection and disassembly, and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 徐士俊
- Filing Date
- 2025-09-22
- Publication Date
- 2026-06-09
AI Technical Summary
Existing non-penetrating sewing machines require special tools for installation and disassembly, making the operation cumbersome. Furthermore, changing specifications involves a large workload and high labor intensity.
It adopts an interference fit connection between the insert plate and the socket, and uses the stress of elastic deformation to achieve quick installation and disassembly. The insertion plate is fixed and unlocked by the cooperation of the positioning boss and the clamping plate.
It enables quick manual installation and removal without the need for thread collectors, taking only 1-2 seconds, reducing labor intensity and improving replacement efficiency.
Smart Images

Figure CN224337806U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of silk reeling equipment in silk production engineering, specifically a flexible connection mechanism for an automatic silk reeling machine that eliminates the need for thread threading. Background Technology
[0002] Silk reeling is the process of extracting silk from silkworm cocoons. The main processes of silk reeling using modern automatic silk reeling machines include threading, thread sorting, thread adding, thread joining, thread gathering, sheath twisting, raw silk winding, and drying.
[0003] like Figure 1 As shown, during silk reeling, the raw silk 9 is wound up at a speed v as the winding mechanism rotates. The "thread collection" process combines the threads of several cocoons (one cocoon, one thread) into a single raw silk by passing it through the thread collector's hole (approximately 0.2 mm in diameter). Passing through the thread collector reduces the surface moisture of the raw silk and detects any roughness. If roughness appears on the raw silk, the thread collector's hole will prevent it from passing through, causing the fault lever to rotate around the fulcrum o. Simultaneously, this pulls the clamping mechanism linked to the steel wire 3, stopping the reeling process. Reeling resumes only after the roughness and other faults are manually removed, thus ensuring the cleanliness, purity, and other quality indicators of the raw silk.
[0004] Existing thread-collecting devices all use threaded fasteners to connect to the fault lever of the automatic silk reeling machine during installation. Installation and disassembly require specialized tools and take several minutes to complete. Each automatic silk reeling machine has 400 threads, and each thread is equipped with one thread-collecting device, totaling 400 devices. When changing the reeling specification, a thread-collecting device with the corresponding hole diameter must also be replaced, requiring the disassembly and reassembly of 400 devices. This is a large workload and labor-intensive, thus requiring further solutions. Utility Model Content
[0005] The purpose of this utility model is to overcome the shortcomings in the above-mentioned background technology and provide a flexible connection mechanism for thread collectors that does not require threading. This mechanism should have the characteristics of simple structure, convenient disassembly and assembly, and firm connection.
[0006] The technical solution of this utility model is:
[0007] The thread-collecting device without thread-piercing has an elastic connection mechanism, including an insert plate disposed at the front end of the fault lever and an insertion port disposed at the rear end of the thread-collecting device without thread-piercing; the fit between the receiving surface of the insertion port and the receiving surface of the insert plate is an interference fit.
[0008] During installation, the insert plate is inserted into the socket using a press-in method. The stress caused by the elastic deformation generated by the interference fit makes the enclosing surface press against the enclosed surface, thus achieving a fixed connection. Conversely, disassembly is completed by performing the reverse operation.
[0009] The shape of the socket is compatible with the shape of the insert plate; the socket is provided with a positioning boss, and the insert plate is provided with a positioning hole that mates with the positioning boss; when the insert plate is inserted into the socket, the positioning boss is embedded in the positioning hole, and the socket clamps the insert plate through elastic deformation, forming an interference fit between the insert plate and the socket.
[0010] The thickness of the insert plate is greater than the gap between the inserts.
[0011] The positioning boss is frustum-shaped, with the top diameter of the positioning boss being smaller than the diameter of the positioning hole, and the bottom diameter of the positioning boss being larger than the diameter of the positioning hole.
[0012] The socket includes a socket for accommodating the insert plate and clamping plates extending rearward from both sides of the socket for clamping the insert plate; the positioning boss is disposed on the inner side of one of the clamping plates; the socket gap is the distance from the top surface of the positioning boss to the clamping plate on the other side; the clamping plate distance is less than the thickness of the insert plate; when the insert plate is inserted into the socket, the positioning boss is partially embedded in the positioning hole, and the clamping plate clamps the insert plate through elastic deformation.
[0013] The clamps are provided with guide ramps to guide the insert plate into the insertion hole.
[0014] The positioning hole is located on the second insert plate, or on the third insert plate, or between the second insert plate and the third insert plate.
[0015] The insert plate includes, from front to back, a first insert plate, a second insert plate, and a third insert plate.
[0016] The width of the first insert plate is smaller than the width of the third insert plate, and the width of the second insert plate gradually increases from front to back.
[0017] The beneficial effects of this utility model are:
[0018] 1. The flexible connection mechanism for the thread-reeling device provided by this utility model allows the thread-reeling device to be installed on the fault lever of the automatic silk reeling machine without the need for special tools. The installation or disassembly can be completed by hand in just 1-2 seconds, which saves labor and time, is convenient to operate, and has a reliable connection.
[0019] 2. If sericin or other substances clog the holes of the reeling device during the reeling process, the reeling device can be quickly removed and cleaned to avoid affecting normal production.
[0020] 3. When reeling raw silk of different specifications, select thread collectors with different thread collector apertures. This allows for quick replacement of 400 thread collectors per automatic reeling machine, greatly improving work efficiency. Attached Figure Description
[0021] The following describes some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components.
[0022] Figure 1 This is a schematic diagram illustrating the working principle of this utility model.
[0023] Figure 2 This is a schematic diagram of the disassembled state of this utility model.
[0024] Figure 3 This is a schematic diagram of the main structure of the thread-collecting device without thread-collecting according to this utility model.
[0025] Figure 4 This is a top view of the structure of the thread-collecting device of this utility model.
[0026] Figure 5 This is a schematic diagram of the left-side structure of the thread-collecting device of this utility model.
[0027] Figure 6 This is a schematic diagram of the main structure of the fault lever of this utility model.
[0028] Figure 7 yes Figure 6 A schematic diagram of the cross-sectional structure along the AA direction.
[0029] Figure 8 This is a schematic diagram showing the connection relationship between the thread-free collector and the fault lever of this utility model.
[0030] Figure label:
[0031] Fault lever 1, positioning hole 1-1, first insert plate 1.1, second insert plate 1.2, third insert plate 1.3, thread collector 2, positioning boss 2-1, thread collector hole 2-2, insertion hole 2.1, clamping plate 2.2, guide slope 2.3, steel wire 3, raw silk 9, clamping plate spacing B, insertion gap a, insert plate thickness b, fulcrum o, speed v. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.
[0033] like Figure 1 As shown, the thread-collecting device without thread thread is connected by an elastic connection mechanism, including a plate disposed on the fault lever 1 and a socket disposed on the thread-collecting device 2 that mates with the plate. The thread-collecting device without thread thread is connected to the fault lever through this connection mechanism by forming an interference fit.
[0034] During installation, the insert plate is inserted into the socket using a press-fit method: the inner wall of the socket acts as the receiving surface, and the outer wall of the insert plate acts as the receiving surface. When connecting the bypass connector to the fault lever, the fit between the receiving and receiving surfaces is an interference fit. This means that the stress from the elastic deformation generated by the interference fit causes the receiving surface to press against the receiving surface, thus achieving a secure connection. Conversely, disassembly is completed by performing the opposite operation. The insert plate is located at the front end of the fault lever. Figure 1 and Figure 6 The right side is the front end of the fault lever. Figure 1 and Figure 6 The left side is the rear end of the fault lever. The socket is located at the rear end of the non-piercing collector. Figure 1 and Figure 3 The left side is the rear end of the non-penetrating thread collector. Figure 1 and Figure 3 The right side is the front end of the thread-collecting device without thread penetration, and the thread-collecting device hole 2-2 is located at the front end of the thread-collecting device without thread penetration.
[0035] like Figure 6 As shown, the inserts, from front to back (from right to left in the figure), include the first insert 1.1, the second insert 1.2, and the third insert 1.3.
[0036] The first and third inserts are rectangular, and the second insert is a right trapezoid. The width of the first insert is less than the width of the third insert, and the width of the second insert gradually increases from front to back. Figure 6 The vertical distance is the width), the bottom edge of the second insert is arranged obliquely 1.2.1, the tops of the first, second and third inserts are flush, and the thickness of the insert is b ( Figure 7 The horizontal distance is equal everywhere.
[0037] The thickness b of the insert plate is greater than the socket gap a. When the insert plate is inserted into the socket, it can cause the socket to undergo elastic deformation. The thickness of the insert plate is generally 1.3mm. The socket gap is set as needed and is slightly smaller than the thickness of the insert plate, generally 1.0-1.2mm.
[0038] The insert plate is provided with a positioning hole 1-1. The positioning hole is located in the second insert plate, or in the third insert plate, or between the second and third insert plates (e.g., Figure 6 (As shown). The diameter of the positioning hole is 3.5 mm.
[0039] The shape of the socket is adapted to the shape of the insert plate. The socket includes a socket 2.1, a clamping plate 2.2, and a guide slope 2.3.
[0040] The opening of the socket faces the faulty lever ( Figure 3 (on the left side), two parallel clamps extend backward from both sides of the insertion hole, and one of the clamps has a positioning boss 2-1 on its inner side that mates with the positioning hole.
[0041] The spacing B between the clamping plates is less than the thickness b of the insert plate. When the insert plate is inserted into the socket, it will push the clamping plates apart (an inclined surface can also be made at the front end of the insert plate or at the opening of the socket to guide the insert plate into the socket). The width of the socket is equal to the spacing between the clamping plates.
[0042] The positioning boss is frustum-shaped, with the top diameter of the positioning boss being smaller than the diameter of the positioning hole, and the bottom diameter of the positioning boss being larger than the diameter of the positioning hole. The insertion gap 'a' is the distance from the top surface of the positioning boss to the clamping plate on the other side. When the inserting plate is inserted, the inserting plate causes the clamping plate to elastically deform by pressing the frustum-shaped positioning boss. Figure 4 and Figure 5 The display shows that the height of the positioning boss is half the gap between the connectors.
[0043] A guide ramp 2.3 is also provided between the clamping plates. The guide ramp is located below the insertion hole and the top of the guide ramp is connected to the insertion hole. The guide ramp can guide the first insertion plate to be accurately inserted into the insertion hole.
[0044] When the insert plate is fully inserted into the socket, the positioning boss is embedded in the positioning hole. Since the thickness of the insert plate is greater than the gap between the sockets, the clamping plate remains open. The socket and the insert plate form an interference fit. The clamping plate clamps the insert plate through elastic deformation. At the same time, the first insert plate is fully inserted into the socket. The thread collector cannot rotate around the positioning boss. The thread collector is then connected to the fault lever.
[0045] The working principle of this utility model is as follows:
[0046] 1. The flexible connection mechanism for the thread collector without thread piercing provided by this utility model allows for the installation and disassembly of the thread collector without thread piercing to be completed by hand, taking only 1-2 seconds;
[0047] 2. When the thread-collecting device is installed onto the fault lever through the thread-collecting device elastic connection mechanism, an interference fit is formed between the insert plate and the socket, so that the thread-collecting device and the fault lever are connected.
[0048] 3. During installation, the insert plate is inserted into the socket using the press-in method. The guide slope can guide the first insert plate to be accurately inserted into the socket (the socket completely encloses the first insert plate). When the insert plate is inserted, the insert plate first presses against the positioning boss to make the clamping plate slightly open. After the insert plate is inserted into place, the positioning boss is partially embedded in the positioning hole (because the bottom diameter of the positioning boss is larger than the diameter of the positioning hole, the positioning boss cannot be completely inserted into the positioning hole). The clamping plate remains open. Therefore, the clamping plate uses the elastic deformation stress generated by the interference fit to clamp the insert plate, so that the non-piercing thread collector is connected to the fault lever. Conversely, the reverse operation can make the positioning boss slide out of the positioning hole, completing the disassembly of the non-piercing thread collector.
[0049] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. A flexible connection mechanism for thread collectors without the need for thread pulling, characterized in that: It includes an insert plate set at the front end of the fault lever (1) and an insertion port set at the rear end of the non-piercing collector (2); the fit between the enclosing surface of the insertion port and the enclosed surface of the insert plate is an interference fit; During installation, the insert plate is inserted into the socket using a press-in method. The stress caused by the elastic deformation generated by the interference fit makes the enclosing surface press against the enclosed surface, thus achieving a fixed connection. Conversely, disassembly is completed by performing the reverse operation.
2. The elastic connection mechanism for the thread-collecting device without thread penetration according to claim 1, characterized in that: The shape of the socket is compatible with the shape of the insert plate; the socket is provided with a positioning boss (2-1), and the insert plate is provided with a positioning hole (1-1) that mates with the positioning boss; when the insert plate is inserted into the socket, the positioning boss is embedded in the positioning hole, the socket clamps the insert plate through elastic deformation, and the insert plate and the socket form an interference fit.
3. The elastic connection mechanism for the thread-collecting device without thread penetration according to claim 2, characterized in that: The thickness (b) of the insert plate is greater than the gap (a) between the inserts.
4. The elastic connection mechanism for the thread-collecting device without thread penetration according to claim 3, characterized in that: The positioning boss is frustum-shaped, with the top diameter of the positioning boss being smaller than the diameter of the positioning hole, and the bottom diameter of the positioning boss being larger than the diameter of the positioning hole.
5. The elastic connection mechanism for the thread-collecting device without thread-collecting according to claim 4, characterized in that: The socket includes a socket (2.1) for accommodating the insert plate and clamping plates (2.2) extending rearward from both sides of the socket for clamping the insert plate; the positioning boss is disposed on the inner side of one of the clamping plates; the socket gap (a) is the distance from the top surface of the positioning boss to the clamping plate on the other side; the clamping plate spacing is less than the thickness of the insert plate; when the insert plate is inserted into the socket, the positioning boss is partially embedded in the positioning hole, and the clamping plate clamps the insert plate through elastic deformation.
6. The elastic connection mechanism for the thread-collecting device without thread penetration according to claim 5, characterized in that: The clamps are provided with guide ramps (2.3) for guiding the insert plate into the insertion hole.
7. The elastic connection mechanism for the thread-collecting device without thread penetration according to claim 6, characterized in that: The positioning hole is located on the second insert plate, or on the third insert plate, or between the second insert plate and the third insert plate.
8. The elastic connection mechanism for the thread-collecting device without thread-collecting according to claim 7, characterized in that: The inserts, from front to back, include a first insert (1.1), a second insert (1.2), and a third insert (1.3).
9. The elastic connection mechanism for the thread-collecting device according to claim 8, characterized in that: The width of the first insert plate is smaller than the width of the third insert plate, and the width of the second insert plate gradually increases from front to back.