Rewinding take-up air cylinder

Abstract

The utility model relates to a recoiling take-up air cylinder which is used for pressing a take-up spool and comprises a cylinder body, a piston rod horizontally arranged in the cylinder body in a sliding mode, a piston sealing ring, a wear-resisting guide sleeve, a dustproof sealing ring, a rotating shaft and a rotating assembly. A first air hole and a second air hole are formed in the two ends of the cylinder body respectively and are separated through a piston rod, one end of the piston rod is sleeved with a piston sealing ring to make contact with the inner wall of the cylinder body, and gas streaming is avoided. One end of the cylinder body is sleeved with a wear-resistant guide sleeve and a dustproof sealing ring to contact the outer wall of the other end of the piston rod; the piston rod is rotationally connected with the rotating shaft through the rotating assembly, smooth operation of the rotating shaft is facilitated, and the rotating shaft and the piston rod are coaxially arranged. The cylinder disclosed by the utility model integrates the actions of linear stretching and circumferential rotation, and is simplified in structural design, small in occupied space, convenient to install and maintain, and suitable for the working condition that the take-up spool is required to be pressed and rotated.

Description

Technical Field

[0001] The utility model relates to the technical field of steel cord take-up machines, in particular to a rewinding cylinder. Background Art

[0002] The rewinder used in the steel cord production process primarily adjusts steel cord products with substandard mechanical properties to ensure their straightness meets national standards. The rewinder utilizes the control principles of a twister, straightener, and traction sheave, working together to eliminate residual internal stress and torsion in the steel wire and ensure the straightness of the steel cord. The straightened steel cord is then rewound by a take-up machine.

[0003] The existing rewinder mainly includes a wire taking-up motor and a clamping device, which are arranged on the wire taking-up table at intervals on the left and right. The wire taking-up motor and the clamping device are used to clamp the wire taking-up spool on the left and right. The clamping device is a movable structure, which is convenient for clamping and releasing the wire taking-up spool.

[0004] The clamping device includes a support mounted above the winding table, within which a sleeve slides left and right. The sleeve and the output shaft of the winding motor are coaxially arranged. A top plate is mounted on the end of the sleeve and the output shaft of the winding motor to tighten the center of the winding spool. The sleeve and the top plate are rotatably connected, allowing the top plate to move axially and rotate in a circular motion. A connecting rod is provided below the sleeve, extending vertically downward to the bottom of the winding table. A winding cylinder is provided below the winding table. The piston rod of the winding cylinder is connected to the connecting rod, thereby controlling the left and right lateral movement of the sleeve. During the left and right lateral movement, the two top plates move closer or further away, thereby fixing or releasing the winding spool.

[0005] From this, it can be seen that the components in the entire clamping device are widely distributed, and there are components above and below the winding table; the sleeve is indirectly driven to extend and retract by the wire-taking cylinder, which has a complex structure, occupies a large space, is not easy to install and difficult to maintain; at the same time, the wire-taking cylinder is located below the winding table and is blocked by the winding table. If unsafe factors such as air leakage or slight jamming occur, they cannot be discovered in the first time. When they accumulate to a certain extent, small faults become major faults before they are discovered, resulting in certain production losses. Summary of the Invention

[0006] In order to solve the problems of the existing clamping device having a complex overall structure and occupying a large space, the utility model provides a rewinding cylinder, which is installed above the wire taking-up table so that the operating status can be observed at any time. At the same time, it integrates axial linear telescopic and circular rotation functions, and can be suitable for the tightening and operating conditions of the wire taking-up spool.

[0007] In order to achieve the above purpose, the technical solution adopted by the present utility model is:

[0008] The rewinding cylinder is used to press the take-up spool, and includes a cylinder body, a piston rod horizontally slidingly arranged in the cylinder body, a piston sealing ring, a wear-resistant guide sleeve, a dustproof sealing ring, a rotating shaft and a rotating assembly;

[0009] The cylinder body is respectively provided with an air hole 1 and an air hole 2 at both ends, and the air hole 1 and the air hole 2 are separated by the piston rod, and the piston rod is prompted to move by the airflow on different sides. A piston sealing ring is provided at one end of the piston rod to contact the inner wall of the cylinder body to prevent gas cross-flow, and the other end of the piston rod extends horizontally out of the cylinder body. The wear-resistant guide sleeve and the dustproof sealing ring are provided at one end of the cylinder body to contact the outer wall of the other end of the piston rod, thereby improving the stability and smoothness of the operation of the piston rod;

[0010] The other end of the piston rod is equipped with the rotating assembly, and the piston rod is rotatably connected to the rotating shaft through the rotating assembly, which facilitates the smooth operation of the rotating shaft. The rotating shaft and the piston rod are coaxially arranged.

[0011] Furthermore, the cylinder body includes a cylinder barrel, a cylinder front cover and a cylinder rear cover. The cylinder barrel is arranged horizontally, and the cylinder front cover and the cylinder rear cover are respectively provided at the front and rear ends of the cylinder barrel to facilitate closing the cylinder barrel; the piston rod and the cylinder barrel are coaxially arranged inside and outside, and the piston rod is a round rod with a "T"-shaped cross-section.

[0012] Furthermore, the cylinder front cover is provided with the air hole 1, and the cylinder rear cover is provided with the air hole 2, both of which are connected to the cylinder barrel; a plurality of piston sealing rings are sleeved on the large-diameter end of the piston rod, and the large-diameter end of the piston rod contacts the inner wall of the cylinder barrel to separate the cylinder barrel into independent and non-connected air chamber 1 and air chamber 2, wherein air chamber 1 is connected to air hole 1, and air chamber 2 is connected to air hole 2. The air holes facilitate the injection and exhaust of air into and out of the air chambers.

[0013] Furthermore, a limiting protrusion is provided on one end of the piston rod, and a limiting groove is provided on the rear cover of the cylinder. The limiting protrusion and the limiting groove match each other, which facilitates the positioning of the piston rod when it is retracted.

[0014] Furthermore, the cylinder front cover is stepped, and the thickness of the cylinder front cover is greater than that of the cylinder rear cover, which provides a convenient location for the installation of the wear-resistant guide sleeve and the dust-proof sealing ring. The inner ring of the cylinder front cover is provided with the wear-resistant guide sleeve and the dust-proof sealing ring, and the wear-resistant guide sleeve and the dust-proof sealing ring contact the outer wall of the small-diameter end of the piston rod.

[0015] Furthermore, the rotating assembly includes a stepped hole, a plane bearing, a single-row deep groove ball bearing, a double-row angular contact ball bearing and a bearing cover. The stepped hole is arranged axially along the small-diameter end of the piston rod. The plane bearing, the double-row angular contact ball bearing and the single-row deep groove ball bearing are arranged in the stepped hole from the inside to the outside. The end face of the small-diameter end of the piston rod is screwed with the bearing cover, and the bearing cover is tightly against the end face of the single-row deep groove ball bearing, so as to facilitate the confinement of multiple bearings in the stepped hole.

[0016] Furthermore, the rotating shaft includes an integrally formed mounting section, an expansion section and a positioning section. The rotating shaft is connected to the rotating assembly through the mounting section. The mounting section is inserted between the plane bearing, the double-row angular contact ball bearing and the single-row deep groove ball bearing. One end of the mounting section extends out of the rotating assembly to connect the expansion section. The expansion section is in the shape of a stepped disc. One end of the expansion section is connected to the positioning section. The positioning section extends into the center of the take-up spool.

[0017] Through the above technical solution, the beneficial effects of the utility model are:

[0018] This utility model features a rational structural design and optimized cylinder structure. The axial movement of the piston rod drives the movement of the rotating shaft, while the rotating shaft can smoothly rotate at the end of the piston rod via a rotating assembly, which is embedded within the end of the piston rod. This minimizes the size of the cylinder and reduces the space it occupies while achieving both rotation and telescopic functions. The overall structure of the cylinder is simplified, avoiding structural complexity and facilitating disassembly and maintenance. It is suitable for the operating conditions of a take-up spool and has demonstrated excellent practical application results.

[0019] By controlling the air intake through air holes one and two, this utility model facilitates the axial movement of the piston rod within the cylinder, thereby driving the movement of the rotating shaft, which is then used to position and tighten the take-up spool. The rotating shaft is mounted on the piston rod via a rotating assembly, which includes multiple bearings of different types. This greatly improves the smoothness of the rotating shaft's operation and reduces its impact on the piston rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a simplified diagram of an existing pressing device.

[0021] Figure 2 It is a schematic diagram of the rewinding cylinder of the utility model in the retracted state.

[0022] Figure 3 It is a schematic diagram of the extended state of the rewinding cylinder of the utility model.

[0023] The numbers in the accompanying drawings are: 1 take-up motor, 2 take-up spool, 3 support, 4 sliding sleeve, 5 top plate, 6 connecting rod, 7 winding table, 8 winding cylinder, 9 cylinder body, 91 cylinder barrel, 92 cylinder front cover, 93 cylinder rear cover, 10 piston rod, 11 piston sealing ring, 12 wear-resistant guide sleeve, 13 dustproof sealing ring, 14 rotating shaft, 141 mounting section, 142 expansion section, 143 positioning section, 15 rotating assembly, 151 stepped hole, 152 plane bearing, 153 single-row deep groove ball bearing, 154 double-row angular contact ball bearing, 155 bearing cover, 16 air hole one, 17 air hole two, 18 air cavity one, 19 air cavity two, 20 limiting protrusion, 21 limiting groove. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is described in detail below with reference to the accompanying drawings:

[0025] like Figure 2~Figure 3 As shown, the rewinding cylinder is used to compress the take-up spool, replacing the existing clamping device for a compact structure. The rewinding cylinder includes a cylinder body 9, a piston rod 10 sliding horizontally within the cylinder body 9, a piston seal 11, a wear-resistant guide sleeve 12, a dustproof seal 13, a rotating shaft 14, and a rotating assembly 15.

[0026] Cylinder body 9 comprises a cylinder barrel 91, a front cylinder cover 92, and a rear cylinder cover 93. Cylinder barrel 91 is arranged horizontally, with the front cylinder cover 92 and rear cylinder cover 93 located at the front and rear ends of cylinder barrel 91, respectively. These cover 92 and rear cylinder cover 93 cooperate to seal cylinder barrel 91. Air hole 16 and air hole 2 17 are located at both ends of cylinder barrel 9, respectively. Specifically, air hole 16 is located on the front cylinder cover 92, and air hole 2 17 is located on the rear cylinder cover 93. Both air holes 16 and 17 communicate with cylinder barrel 91.

[0027] Air hole 16 and air hole 2 17 are separated by piston rod 10. Piston rod 10 is a round rod with a T-shaped cross-section, having a large-diameter end and a small-diameter end. Piston rod 10 and cylinder 91 are coaxially arranged inside and outside. The large-diameter end of piston rod 10 contacts the inner wall of cylinder 91, thereby dividing cylinder 91 into independent and non-connected air chamber 18 and air chamber 2 19. Air chamber 18 is connected to air hole 16, allowing air to be injected into air chamber 18 through air hole 16. Air chamber 2 19 is connected to air hole 2 17, allowing air to be injected into air chamber 2 19 through air hole 2 17.

[0028] In order to ensure that the large diameter end of the piston rod 10 can effectively separate the air chamber 18 and the air chamber 2 19, a piston sealing ring 11 is provided at one end of the piston rod 10, that is, multiple piston sealing rings 11 are provided on the large diameter end of the piston rod 10, and the piston sealing rings 11 contact the inner wall of the cylinder body 9, thereby preventing air leakage and avoiding cross-flow of gas in the air chamber 18 and the air chamber 2 19.

[0029] The other end of the piston rod 10 extends horizontally out of the cylinder body 9, that is, the smaller end of the piston rod 10 passes through the cylinder front cover 92 and extends out of the cylinder barrel 91. A wear-resistant guide sleeve 12 and a dust seal 13 are provided at one end of the cylinder body 9, which are used to contact the outer wall of the other end of the piston rod 10. When installing the wear-resistant guide sleeve 12 and the dust seal 13, the cylinder front cover 92 is stepped and thicker than the cylinder rear cover 93, providing a larger installation space for the wear-resistant guide sleeve 12 and the dust seal 13.

[0030] A wear-resistant guide sleeve 12 and a dust seal 13 are mounted within the inner ring of the cylinder front cover 92. These sleeves contact the outer wall of the minor-diameter end of the piston rod 10. The sleeve 12 guides the axial movement of the piston rod 10 and ensures stable operation. The dust seal 13 ensures smooth operation of the piston rod 10.

[0031] A rotating assembly 15 is built into the other end of the piston rod 10. Specifically, the rotating assembly 15 is embedded in the smaller diameter end of the piston rod 10. This rotating assembly 15 comprises a stepped bore 151, a plane bearing 152, a single-row deep groove ball bearing 153, a double-row angular contact ball bearing 154, and a bearing gland 155. Stepped bore 151 is arranged axially along the smaller diameter end of the piston rod 10. The plane bearing 152, double-row angular contact ball bearing 154, and single-row deep groove ball bearing 153 are sequentially positioned within stepped bore 151 from the inside out. The smaller diameter end of the piston rod 10 is screwed to a bearing gland 155, which abuts against the end face of the single-row deep groove ball bearing 153, preventing the bearing from dislodging from the stepped bore 151.

[0032] The piston rod 10 is rotatably connected to the rotating shaft 14 via the rotating assembly 15. The rotating shaft 14 and the piston rod 10 are coaxially arranged. The rotating shaft 14 includes an integrally formed mounting section 141, an enlarged section 142, and a positioning section. The rotating shaft 14 is connected to the rotating assembly 15 via the mounting section 141. The mounting section 141 is in the shape of a stepped shaft and is inserted between a plane bearing 152, a double-row angular contact ball bearing 154, and a single-row deep groove ball bearing 153. One end of the mounting section 141 extends out of the rotating assembly 15 to connect to the enlarged section 142. The enlarged section 142 is in the shape of a stepped disc, which increases the contact area with the end face of the take-up spool, improves the stability of the clamping, and simultaneously positions the take-up spool. One end of the enlarged section 142 is connected to the positioning section, which extends into the center of the take-up spool.

[0033] The principle of this utility model is as follows: after the air hole 16 and the air hole 2 17 are connected to the compressed air source through the air pipe, they can provide a power source for the entire take-up cylinder; after the air pipe is connected to the reversing valve, the flow direction of the compressed air source can be controlled, thereby controlling the running direction of the piston rod 10. When the end of the piston rod 10 equipped with the rotating assembly 15 is extended, it drives the rotating shaft 14 to extend together, thereby using the rotating shaft 14 to press the end surface of the take-up spool. After the take-up spool rotates in a circular motion, the rotating shaft 14 rotates smoothly with it under the action of the rotating assembly 15, thereby realizing that the cylinder can move both linearly and circularly, effectively adapting to the operating conditions of the take-up spool.

[0034] To ensure the piston rod 10 remains in position when retracting, a stopper protrusion 20 is provided on one end of the piston rod 10. A stopper groove 21 is provided on the cylinder rear cover 93, and the stopper protrusion 20 and the stopper groove 21 match. That is, when the stopper protrusion 20 is inserted into the stopper groove 21, the piston rod 10 retracts and the entire take-up cylinder is in its initial state, ready for extension.

[0035] The embodiments described above are only preferred embodiments of the present invention and do not limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structure, features and principles described in the patent scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. The rewinding cylinder is used to press the take-up spool, and its characteristics are: It comprises a cylinder body (9), a piston rod (10) horizontally slidably arranged in the cylinder body (9), a piston sealing ring (11), a wear-resistant guide sleeve (12), a dustproof sealing ring (13), a rotating shaft (14) and a rotating assembly (15); The cylinder body (9) is provided with an air hole (16) and an air hole (17) at both ends, and the air hole (16) and the air hole (17) are separated by the piston rod (10). One end of the piston rod (10) is provided with a piston sealing ring (11) to contact the inner wall of the cylinder body (9). The other end of the piston rod (10) extends horizontally out of the cylinder body (9). One end of the cylinder body (9) is provided with a wear-resistant guide sleeve (12) and a dustproof sealing ring (13) to contact the outer wall of the other end of the piston rod (10); The other end of the piston rod (10) is internally provided with the rotating assembly (15), and the piston rod (10) is rotatably connected to the rotating shaft (14) via the rotating assembly (15), and the rotating shaft (14) and the piston rod (10) are coaxially arranged.

2. The rewinding cylinder according to claim 1, characterized in that: The cylinder body (9) comprises a cylinder barrel (91), a cylinder front cover (92) and a cylinder rear cover (93); the cylinder barrel (91) is arranged horizontally, and the cylinder front cover (92) and the cylinder rear cover (93) are respectively provided at the front and rear ends of the cylinder barrel (91); the piston rod (10) and the cylinder barrel (91) are coaxially arranged inside and outside, and the piston rod (10) is a round rod with a "T"-shaped cross section.

3. The rewinding cylinder according to claim 2, characterized in that: The air hole 1 (16) is arranged on the cylinder front cover (92), and the air hole 2 (17) is arranged on the cylinder rear cover (93). Both the air hole 1 (16) and the air hole 2 (17) are connected to the cylinder barrel (91); a plurality of piston sealing rings (11) are sleeved on the large diameter end of the piston rod (10), and the large diameter end of the piston rod (10) contacts the inner wall of the cylinder barrel (91) to separate the cylinder barrel (91) into independent and non-connected air chamber 1 (18) and air chamber 2 (19), wherein the air chamber 1 (18) is connected to the air hole 1 (16), and the air chamber 2 (19) is connected to the air hole 2 (17).

4. The rewinding cylinder according to claim 2, characterized in that: A limiting protrusion (20) is further provided at one end of the piston rod (10), and a limiting groove (21) is provided on the cylinder rear cover (93), wherein the limiting protrusion (20) and the limiting groove (21) match each other.

5. The rewinding cylinder according to claim 2, characterized in that: The cylinder front cover (92) is stepped, and the thickness of the cylinder front cover (92) is greater than that of the cylinder rear cover (93). The inner ring of the cylinder front cover (92) is provided with the wear-resistant guide sleeve (12) and the dustproof sealing ring (13), and the wear-resistant guide sleeve (12) and the dustproof sealing ring (13) contact the outer wall of the small-diameter end of the piston rod (10).

6. The rewinding cylinder according to claim 2, characterized in that: The rotating assembly (15) includes a stepped hole (151), a plane bearing (152), a single-row deep groove ball bearing (153), a double-row angular contact ball bearing (154), and a bearing cover (155). The stepped hole (151) is axially arranged along the small-diameter end of the piston rod (10). The plane bearing (152), the double-row angular contact ball bearing (154), and the single-row deep groove ball bearing (153) are sequentially arranged in the stepped hole (151) from the inside to the outside. The end face of the small-diameter end of the piston rod (10) is screwed with the bearing cover (155), and the bearing cover (155) is tightly pressed against the end face of the single-row deep groove ball bearing (153).

7. The rewinding cylinder according to claim 6, characterized in that: The rotating shaft (14) includes an integrally formed mounting section (141), an enlarged section (142), and a positioning section. The rotating shaft (14) is connected to the rotating assembly (15) through the mounting section (141). The mounting section (141) is inserted between the plane bearing (152), the double-row angular contact ball bearing (154), and the single-row deep groove ball bearing (153). One end of the mounting section (141) extends out of the rotating assembly (15) and is connected to the enlarged section (142). The enlarged section (142) is in the shape of a stepped disc. One end of the enlarged section (142) is connected to the positioning section. The positioning section extends into the center of the take-up spool.

Images