Pressure regulating and locking mechanism for plate spring cradle of spinning machine

Abstract

The utility model discloses a pressure regulating and locking mechanism for a plate spring cradle of a spinning machine, which relates to the technical field of plate spring cradles of spinning machines and comprises a cradle shell, a T-shaped groove which is through inside and outside is arranged on the lateral side of the cradle shell, and a rocker handle is movably connected in the T-shaped groove. The end, located on the inner side of the cradle shell, of the rocker handle is movably connected with the cradle shell through a fixedly-connected shaft rod inserting hole. A shaft rod inserting hole is formed in the inner side of the cradle shell, and the inner side of the cradle shell is further movably connected with an adjustable locker. The adjustable locker comprises a supporting rotating shaft located on the inner side of the cradle shell, and an adjusting screw rod is arranged in the supporting rotating shaft in a threaded fit mode. According to the utility model, through the screw-thread fit between the adjusting screw rod and the supporting rotating shaft, the adjusting screw rod pushes the arc-shaped clamping plate to move up and down, and the position of the arc-shaped clamping plate on the inner side of the cradle shell is changed, so that the clamping force after locking is adjusted, the contact position after abrasion is compensated, and the service life is prolonged.

Description

Technical Field

[0001] This utility model specifically relates to the field of spinning machine leaf spring cradle technology, and more specifically to a spinning machine leaf spring cradle pressure adjustment and locking mechanism. Background Technology

[0002] The leaf spring cradle of a spinning machine is an important component in the drafting mechanism of the spinning machine. It is mainly used to control the drafting process of the yarn. The leaf spring cradle of a spinning machine is usually composed of leaf springs, cradle body, pressure device, adjustment mechanism and other parts. The leaf spring is the key component and is generally made of high-quality spring steel, which has good elasticity and strength.

[0003] The leaf spring cradle applies pressure to the rollers through the elastic deformation of the leaf springs. When the cradle is installed on a spinning machine, the leaf springs are subjected to a certain preload, maintaining appropriate pressure between the rollers. During the spinning process, as the yarn passes through, the rollers need to draft the yarn. The elastic force of the leaf springs ensures that the rollers can stably apply uniform pressure to the yarn under different operating conditions, thereby achieving precise control of the yarn draft ratio.

[0004] However, in practice, it has been noted that the end of the entire leaf spring cradle is generally fitted onto a cylindrical fixed rod. Then, the connection between the end of the leaf spring cradle and the fixed rod is locked by the pressure rod and the fixed structure above the cradle. Pulling the pressure rod upward opens the locking mechanism, causing the cradle to swing on the fixed rod. With the frequent opening and closing of the cradle, the contact position between the locking block inside the locking mechanism and the fixed connection will wear and loosen, which requires the replacement of the internal locking mechanism. Utility Model Content

[0005] The purpose of this invention is to provide a pressure-adjusting and locking mechanism for a spinning machine's leaf spring cradle. The mechanism includes an internal arc-shaped clamping plate that contacts the spinning machine's fixed rod. The interaction between the surface of the arc-shaped clamping plate and the anti-slip protrusions increases the friction with the surface of the fixed rod, thereby securing the cradle housing to the rod. Furthermore, the threaded engagement between the supporting shaft and the adjusting screw allows for adjustment of the arc-shaped clamping plate's position, compensating for wear gaps and extending service life. This addresses the technical problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The pressure adjustment and locking mechanism of the spring cradle of a spinning machine includes a cradle housing. The side of the cradle housing is provided with a T-shaped groove that runs through the inside and outside. A rocker handle is movably connected in the T-shaped groove. The end of the rocker handle located inside the cradle housing is movably connected to the cradle housing through a fixed shaft insertion hole.

[0008] The inner side of the rocker arm housing has a shaft insertion hole, and the inner side of the rocker arm housing is also movably connected to an adjustable locking device;

[0009] The adjustable locking device includes a support shaft located inside the rocker arm housing, an adjusting screw threaded into the support shaft, and an arc-shaped clamp at the end of the adjusting screw.

[0010] As a further technical solution of this utility model, the side of the arc-shaped clamp plate near the shaft insertion hole is fixedly connected with anti-slip protrusions in a rectangular array, and the bottom of the arc-shaped clamp plate is integrally provided with a rotating connecting seat, and the end of the adjusting screw is movably connected to the rotating connecting seat.

[0011] As a further technical solution of this utility model, the rocker handle is L-shaped, and the end of the rocker handle away from the rocker housing is horizontally positioned above the rocker housing. Furthermore, a pressure assembly is fixedly connected in a rectangular array below the rocker housing.

[0012] As a further technical solution of this utility model, the inner side of the cradle housing is also movably connected to a rotating bushing, and the rotating bushing has a hole corresponding to the shaft insertion hole, and both ends of the supporting shaft are movably connected to the inner side of the rotating bushing.

[0013] As a further technical solution of this utility model, the arc-shaped clamp is also located inside the rotating bushing, and the end of the arc-shaped clamp away from the rotating bushing is inclined upward.

[0014] As a further technical solution of this utility model, the end of the rocker handle near the rocker end shaft is integrally provided with a pressure claw, and the pressure claw contacts the inclined end of the arc-shaped clamp plate, and the pressure claw is located above the end of the arc-shaped clamp plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, pressing down on the rocker handle causes the rocker handle to rotate downward around the rocker end shaft. The pressure claw near one end of the rocker end shaft presses down on the arc-shaped clamping plate, causing the arc-shaped clamping plate to rotate around the support shaft. This causes the other end of the arc-shaped clamping plate to move closer to the shaft insertion hole. The pressure at the end of the arc-shaped clamping plate quickly fixes the rocker shell, preventing the rocker shell from rotating on the fixing rod.

[0017] 2. In this utility model, the side of the arc-shaped clamp plate near the shaft insertion hole is provided with anti-slip protrusions in a rectangular array. When the surface of the arc-shaped clamp plate contacts the fixing rod, the anti-slip protrusions on the arc-shaped clamp plate can increase the pressure on the contact surface, prevent slippage at the connection, and thus improve the stability after fixing.

[0018] 3. In this utility model, the adjusting screw is rotated by a tool, and then the screw is threaded together with the support shaft, causing the adjusting screw to push the arc-shaped clamping plate up and down, changing the position of the arc-shaped clamping plate inside the rocker housing, thereby adjusting the clamping force after locking, compensating for the worn contact position, and extending the service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model in use.

[0020] Figure 2 This utility model Figure 1 A schematic diagram of the bottom structure.

[0021] Figure 3 This utility model Figure 2 A schematic diagram of the internal structure.

[0022] Figure 4 This utility model Figure 3 A magnified view of a portion of the image.

[0023] Figure 5 This is a schematic diagram showing the position and structure of the rocker handle and the adjustable locking device in this utility model.

[0024] Figure 6 This utility model Figure 5 A magnified view of a portion of the image.

[0025] Figure 7 This is a schematic diagram of the bottom structure of the adjustable locking device in this utility model.

[0026] In the picture:

[0027] Cradle housing-1, shaft insertion hole-2, rocker handle-3, pressure assembly-4, rotating bushing-5, rocker end shaft-6, adjustable locking device-7, arc-shaped clamp-71, anti-slip protrusion-72, support shaft-73, adjusting screw-74, rotating connecting seat-75, positioning protrusion-8, pressure claw-9. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-7This utility model embodiment provides a pressure adjusting and locking mechanism for a spinning machine leaf spring rocker arm, including a rocker arm housing 1. The side of the rocker arm housing 1 is provided with a T-shaped groove that runs through the inside and outside, and a rocker handle 3 is movably connected in the T-shaped groove. The end of the rocker handle 3 located inside the rocker arm housing 1 is movably connected to the rocker arm housing 1 through a fixedly connected shaft insertion hole 2.

[0030] The inner side of the rocker arm housing 1 is provided with a shaft insertion hole 2, and an adjustable locking device 7 is also movably connected to the inner side of the rocker arm housing 1.

[0031] The adjustable locking device 7 includes a support shaft 73 located inside the rocker housing 1, an adjusting screw 74 threadedly fitted in the support shaft 73, and an arc-shaped clamp 71 provided at the end of the adjusting screw 74.

[0032] By adopting the above technical solution, pressing down on the rocker handle 3 causes the rocker handle 3 to rotate downward around the rocker end shaft 6 at its end. The pressure claw 9 near the rocker end shaft 6 will press down on the arc-shaped clamp 71, causing the arc-shaped clamp 71 to rotate around the support shaft 73. This causes the other end of the arc-shaped clamp 71 to move closer to the shaft insertion hole 2. The pressure at the end of the arc-shaped clamp 71 quickly fixes the rocker housing 1, preventing the rocker housing 1 from rotating on the fixing rod.

[0033] Furthermore, the arc-shaped clamp 71 has anti-slip protrusions 72 fixedly connected in a rectangular array on the side near the shaft insertion hole 2, and the bottom of the arc-shaped clamp 71 is integrally provided with a rotating connecting seat 75, and the end of the adjusting screw 74 is movably connected to the rotating connecting seat 75.

[0034] More specifically, the rocker handle 3 is L-shaped, and the end of the rocker handle 31 away from the rocker housing 1 is horizontally positioned above the rocker housing 1. Furthermore, a pressure assembly 4 is fixedly connected in a rectangular array below the rocker housing 1.

[0035] By adopting the above technical solution, the side of the arc-shaped clamp 71 near the shaft insertion hole 2 is provided with anti-slip protrusions 72 in a rectangular array. When the surface of the arc-shaped clamp 71 contacts the fixing rod, the anti-slip protrusions 72 on the arc-shaped clamp 71 can increase the pressure on the contact surface, prevent slippage at the connection, and thus improve the stability after fixing.

[0036] Furthermore, a rotating bushing 5 is movably connected to the inner side of the cradle housing 1, and the rotating bushing 5 has a hole corresponding to the shaft insertion hole 2, and both ends of the supporting rotating shaft 73 are movably connected to the inner side of the rotating bushing 5.

[0037] Furthermore, the arc-shaped clamp 71 is also located inside the rotating bushing 5, and the end of the arc-shaped clamp 71 away from the rotating bushing 5 is inclined upward.

[0038] More specifically, the rocker handle 3 is integrally provided with a pressure claw 9 at one end near the rocker end shaft 6, and the pressure claw 9 contacts the inclined end of the arc-shaped clamp 71, and the pressure claw 9 is located above the end of the arc-shaped clamp 71.

[0039] By adopting the above technical solution, the adjusting screw 74 is rotated by a tool, and then through the threaded engagement between the adjusting screw 74 and the support shaft 73, the adjusting screw 74 pushes the arc-shaped clamping plate 71 to move up and down, changing the position of the arc-shaped clamping plate 71 inside the rocker arm housing 1, thereby adjusting the clamping force after locking, compensating for the worn contact position, and extending the service life.

[0040] Furthermore, the end of the adjusting screw 74 away from the rotating connecting seat 75 is integrally provided with an internal hexagonal socket, which can be used to insert the end of an internal hexagonal wrench into the internal hexagonal socket, and then the adjusting screw 74 is rotated. The position of the arc-shaped clamp 71 is adjusted by the threaded engagement between the adjusting screw 74 and the supporting rotating shaft 73.

[0041] Furthermore, the T-slot is located on the side of the rocker housing 1 away from the pressure assembly 4. At this time, the rocker handle 3 rotates, and the end of the rocker handle 3 moves in the T-slot.

[0042] The working principle of this utility model is as follows: In use, first, the fixed rod on the spinning machine is inserted through the shaft insertion hole 2. At this time, the rocker arm housing 1 can rotate at the end of the fixed rod. When the rocker arm housing 1 is adjusted to a suitable position, press down on the end of the rocker arm handle 3 located above the rocker arm housing 1. At this time, the rocker arm handle 3 rotates downwards around the rocker arm end shaft 6 at its end. The pressure claw 9 near the rocker arm end shaft 6 will also press down on the arc-shaped clamping plate 71, causing the arc-shaped clamping plate 71 to rotate around the supporting rotating shaft 73, thereby causing the other side of the arc-shaped clamping plate 71 to rotate. The end moves closer to the fixed rod, eventually making the anti-slip protrusion 72 on the arc-shaped clamp 71 fit tightly against the surface of the fixed rod. The anti-slip protrusion 72 can prevent slippage at the connection, thereby fixing the position of the cradle housing 1. When the anti-slip protrusion 72 wears, the adjusting screw 74 can be rotated. Through the threaded engagement between the adjusting screw 74 and the support shaft 73, the arc-shaped clamp 71 is pushed upward, thereby compensating for the wear gap and extending the service life. The structure is simple, the operation is very convenient, and it effectively reduces the intensity of manual labor.

[0043] 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.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pressure-adjusting and locking mechanism for a leaf spring cradle of a spinning machine, characterized in that: The cradle housing (1) includes a T-shaped groove that runs through the inside and outside of the cradle housing (1) and a rocker handle (3) is movably connected in the T-shaped groove. The end of the rocker handle (3) located inside the cradle housing (1) is movably connected to the cradle housing (1) through a fixed shaft insertion hole (2). The inner side of the rocker arm housing (1) is provided with a shaft insertion hole (2), and the inner side of the rocker arm housing (1) is also movably connected with an adjustable locking device (7); The adjustable locking device (7) includes a support shaft (73) located inside the cradle housing (1), an adjusting screw (74) is threaded in the support shaft (73), and an arc-shaped clamp (71) is provided at the end of the adjusting screw (74).

2. The spinning machine leaf spring cradle pressure adjusting and locking mechanism according to claim 1, characterized in that: The arc-shaped clamp (71) has anti-slip protrusions (72) fixedly connected in a rectangular array on the side near the shaft insertion hole (2), and the bottom of the arc-shaped clamp (71) is integrally provided with a rotating connecting seat (75), and the end of the adjusting screw (74) is movably connected to the rotating connecting seat (75).

3. The spinning machine leaf spring cradle pressure adjusting and locking mechanism according to claim 2, characterized in that: The rocker handle (3) is L-shaped, and the end of the rocker handle (3) away from the rocker housing (1) is horizontally positioned above the rocker housing (1). A pressure assembly (4) is fixedly connected in a rectangular array below the rocker housing (1).

4. The pressure adjusting and locking mechanism for the leaf spring cradle of a spinning machine according to claim 3, characterized in that: The inner side of the cradle housing (1) is also movably connected to a rotating bushing (5), and the rotating bushing (5) has a hole corresponding to the shaft insertion hole (2), and both ends of the supporting shaft (73) are movably connected to the inner side of the rotating bushing (5).

5. The pressure adjusting and locking mechanism for the leaf spring cradle of a spinning machine according to claim 4, characterized in that: The arc-shaped clamp (71) is also located inside the rotating bushing (5), and the end of the arc-shaped clamp (71) away from the rotating bushing (5) is inclined upward.

6. The pressure adjusting and locking mechanism for the leaf spring cradle of a spinning machine according to claim 5, characterized in that: The rocker handle (3) is integrally provided with a pressure claw (9) at one end near the rocker end shaft (6), and the pressure claw (9) contacts the inclined end of the arc-shaped clamp (71), and the pressure claw (9) is located above the end of the arc-shaped clamp (71).

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