Cylinder device of bar pinch roll

Abstract

The utility model discloses an air cylinder device of a bar pinch roll. The air cylinder device of the bar pinch roll comprises an air cylinder support, an air cylinder body installed on the air cylinder support, a hollow piston rod arranged on the air cylinder body, a piston arranged on the piston rod in a sleeving mode, an adjusting nut fixedly installed on the piston rod and an adjusting rod with one end penetrating through the piston rod. An air inlet and an air outlet are formed in the air cylinder support. By screwing the adjusting nut, the adjusting nut drives the piston rod and the piston to achieve adjustment of the relative distance with the adjusting rod, then the distance of the air cylinder is pre-adjusted before the air cylinder works, and the situation that long-distance output of the piston rod is needed when the air cylinder works is avoided; by means of the clamping device, the air cylinder with the low response speed can rapidly respond to the pinch roll with the long adjusting stroke to clamp the pinch roll, and the requirements for accurate positioning and stable pinch of the bar pinch roll under different working conditions are met.

Description

Technical Field

[0001] This utility model belongs to the technical field of steel rolling equipment, and specifically relates to a cylinder device for feeding bar clamps. Background Technology

[0002] Pinch rolls play a crucial role in the stable production of a rolling mill. They typically consist of two high-speed rotating roller rings that clamp the rolled stock with appropriate clamping force. Currently, the clamping action of the pinch rolls is achieved through a cylinder mechanism. The opening value of the pinch rolls is adjusted based on the cylinder mechanism to accommodate bars of different diameters. However, existing cylinder mechanisms cannot adjust the stroke of the cylinder itself during operation; they rely solely on the piston rod for stroke adjustment. When a longer stroke needs to be adjusted, a cylinder mechanism with a faster response time is required to clamp the bar stock. This undoubtedly places higher demands on the cylinder mechanism and increases production costs. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a cylinder device for bar clamping rollers to solve the technical problem that the existing cylinder devices have slow response speed and cannot match the bar clamping requirements with long adjustment strokes.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a cylinder device for a bar clamping roller, comprising a cylinder bracket, a cylinder body mounted on the cylinder bracket, a piston rod disposed on the cylinder body and having a hollow interior, a piston sleeved on the piston rod and fixedly connected to the piston rod, an adjusting nut fixedly mounted on the piston rod, and an adjusting rod having one end passing through the piston rod, the adjusting nut being sleeved on the adjusting rod, and the cylinder bracket having an air inlet and an air outlet communicating with the cylinder body.

[0005] Furthermore, the cylinder bracket includes a first support seat and a second support seat arranged vertically at intervals, and a plurality of fixed shafts for connecting the first support seat and the second support seat. The cylinder body is disposed between the first support seat and the second support seat. The first support seat is provided with a first channel for the piston rod to pass through. The air outlet is disposed on the first support seat, and the air inlet is disposed on the second support seat.

[0006] Furthermore, the diameter of the air outlet is equal to the height of the first support, and the diameter of the air inlet is equal to the height of the second support.

[0007] Furthermore, the first support base is also provided with a limiting component for limiting the rotation of the adjusting nut.

[0008] Furthermore, the limiting component includes a bracket disposed on the first support base, and a pair of clamping arms with one end rotatably disposed on the bracket, the other ends of the pair of clamping arms cooperating with each other to clamp the adjusting nut.

[0009] Furthermore, the piston is fixedly mounted on the piston rod by a locking nut.

[0010] Furthermore, it also includes a cover for sealing the piston rod and a fastening screw for fixing the cover to the piston rod. The adjusting nut has a step for abutting against the cover, and the piston rod has a support nut on the side facing away from the cover for abutting against the first support seat to support the piston rod.

[0011] Furthermore, the second support base has a second channel corresponding to the first channel position for the piston rod to pass through, and the end of the adjusting rod that passes through the piston rod is provided with a floating joint.

[0012] Furthermore, the floating joint is provided with a spherical bearing for bearing radial forces.

[0013] Furthermore, a protective cover is provided on the cylinder bracket.

[0014] The beneficial effects of this utility model are as follows: Compared with the prior art, the cylinder device for the bar clamping roller in this utility model forms an integral structure by fixing the piston and piston rod together and the adjusting nut and piston rod together. The adjusting nut is connected to the adjusting rod, allowing the piston rod and piston to adjust their relative distance by turning the adjusting nut. This pre-adjustment of the cylinder distance before operation avoids the need for long piston rod output during cylinder operation. Consequently, the cylinder, with its slower response speed, can quickly clamp the clamping roller with a long adjustment stroke, meeting the precise positioning and stable clamping requirements of the bar clamping roller under different working conditions.

[0015] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0017] Figure 1This is a structural diagram of a cylinder device for a bar clamping roller according to an embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional view of a cylinder device for a bar clamping roller according to an embodiment of the present invention;

[0019] Icon labels:

[0020] 1-Cylinder bracket; 11-First support seat; 12-Second support seat; 13-Fixed shaft; 14-Inlet; 15-Outlet;

[0021] 2-Cylinder body; 21-Piston rod; 22-Piston;

[0022] 3-Adjusting nut; 31-Step;

[0023] 4-Adjusting rod;

[0024] 5-Limiting component; 51-Bracket; 52-Clamping arm;

[0025] 6- Locking nut;

[0026] 7-Cover; 71-Fasting screw;

[0027] 8-Support nut;

[0028] 9-Floating joint; 91-Spherical plain bearing;

[0029] 10-Protective shield. Detailed Implementation

[0030] like Figures 1 to 2As shown, this embodiment proposes a cylinder device for a bar clamping roller, including a cylinder bracket 1, on which a cylinder body 2 is mounted. The cylinder body 2 is provided with a piston rod 21, which is hollow inside. A piston 22 is sleeved on the piston rod 21, and the piston 22 is fixedly connected to the piston rod 21. In addition, an adjusting nut 3 is fixedly mounted on the piston rod 21, and the adjusting nut 3 is connected to an adjusting rod that passes through the piston rod 21 at one end. Furthermore, the cylinder bracket 1 is provided with an air inlet 14 and an air outlet 15 that communicate with the cylinder body 2. The piston 22 is fixedly connected to the piston rod 21, and the adjusting nut 3 is fixedly connected to the piston rod 21, thus forming an integral structure. The adjusting nut 3 is connected to the adjusting rod 4, so that by turning the adjusting nut 3, the piston rod 21 and the piston 22 can be driven to adjust the relative distance with the adjusting rod 4. This allows for pre-adjustment of the cylinder distance before cylinder operation, avoiding situations where the piston rod needs to output a long distance during cylinder operation. This enables the cylinder with a slow response speed to quickly respond and clamp the clamping roller with a long adjustment stroke, meeting the requirements of precise positioning and stable clamping of bar clamping rollers under different working conditions.

[0031] In this application, by providing an air inlet 14 and an air outlet 15 on the cylinder bracket 1, which are connected to the cylinder body 2, the necessary pneumatic power is provided for the cylinder device; that is, the air inlet 14 is responsible for injecting high-pressure gas into the cylinder body 2, pushing the piston 22 and piston rod 21 to move forward; while the air outlet 15 is responsible for discharging low-pressure gas from the cylinder body 2, so that the piston 22 and piston rod 21 can be smoothly reset.

[0032] Further, please refer to Figure 1 As shown, the cylinder support 1 includes a first support base 11 and a second support base 12, which are arranged vertically at intervals and connected by multiple fixed shafts 13. The cylinder body 2 is disposed between the first support base 11 and the second support base 12. The first support base 11 has a first channel for the piston rod 21 to pass through. The air outlet 15 is disposed on the first support base 11, and the air inlet is disposed on the second support base 12. Thus, the arrangement of the first support base 11 and the second support base 12 effectively supports the cylinder body 2 and ensures its stability during operation. The first channel allows the piston rod 21 to pass smoothly through the first support base 11, thereby realizing the reciprocating motion of the piston rod 21. The placement of the air outlet 14 and the air inlet 15 on the first support base 11 and the second support base 12 respectively facilitates the air pressure control of the cylinder device, ensuring the normal operation of the cylinder device.

[0033] Further, please refer to Figure 1 As shown, the diameter of the air outlet 15 is equal to the height of the first support 11, and the diameter of the air inlet 14 is equal to the height of the second support 12. By ensuring that the diameters of the air outlet 15 and the air inlet 14 are equal to the heights of the first support 11 and the second support 12, respectively, the gas flow rate can be increased through the large-diameter air inlet 14 and the air outlet 15, enabling rapid response of the cylinder device and improving operational efficiency. For example, the heights of the first support 11 and the second support 12 can be 5cm, 6cm, 7cm, 8cm, etc., and correspondingly, the diameters of the air inlet 14 and the air outlet 15 can be 5cm, 6cm, 7cm, 8cm, etc. Of course, in this application, the heights of the first support 11 and the second support 12 can also be set to other values ​​according to actual conditions and specific needs; no unique limitation is made here.

[0034] In this application, when gas enters from the inlet 14, it pushes the piston 22 and piston rod 21 to move. The piston rod 21 then drives the adjusting rod 4 to move under the action of the adjusting nut 3. When the piston 22 moves to abut against the first support seat 11, the piston 22 reaches its maximum movement distance. Then, the low-pressure gas in the cylinder body 2 is discharged through the outlet 15, so that the piston 22 and piston rod 21 can be smoothly reset.

[0035] Further, please refer to Figure 1 As shown, the first support base 11 is also provided with a limiting component 5. The limiting component 5 can be used to limit the rotation of the adjusting nut 3. By setting the limiting component 5, when the adjusting nut 3 is adjusted to a suitable position, the limiting component 5 can limit and fix the adjusting nut 3 to prevent it from rotating during operation, thereby affecting the normal operation of the cylinder device.

[0036] Specifically, please refer to Figure 1 As shown, the limiting component 5 includes a bracket 51, which is mounted on the first support base 11. The bracket 51 also has a pair of clamping arms 52. One end of each clamping arm 52 is rotatably mounted on the bracket 51, and the other ends of the clamping arms 52 cooperate to clamp the adjusting nut 3. By clamping the adjusting nut 3 with the cooperation of the pair of clamping arms 52, the adjusting nut 3 can be effectively limited and fixed, preventing it from rotating during operation and ensuring the stability and reliability of the cylinder device.

[0037] Preferably, the piston 22 is fixedly mounted on the piston rod 21 by a locking nut 6. This ensures a secure connection between the piston 22 and the piston rod 21, preventing loosening or detachment during operation.

[0038] Further, please refer to Figure 1As shown, the cylinder assembly also includes a cover 7 and a fastening screw 71. The cover 7 can be used to seal the piston rod 21, and the fastening screw 71 can be used to fix the cover 7 to the piston rod 21. In addition, the adjusting nut 3 is provided with a step 31, which abuts against the cover 7. The piston rod 21 has a support nut 8 on the side facing away from the cover 7, which abuts against the first support seat 11 and can be used to support the piston rod 21. In this way, by setting the cover 7, the piston rod 21 can be protected from external environmental interference and its service life can be extended. By having one side of the step 31 on the adjusting nut 3 abut against the cover 7 and the other side abut against the piston rod 21, and then fixing the adjusting nut 8 to the piston rod 21 with the fastening screw 71, the cover 7, the piston rod 21, and the adjusting nut 3 are connected as a whole. This facilitates the subsequent adjustment of the piston rod 21 by the adjusting nut 3.

[0039] Further, please refer to Figure 1 As shown, the second support 12 has a second channel corresponding to the first channel position, through which the piston rod 21 can pass. A floating joint 9 is provided at one end of the adjusting rod 4 passing through the piston rod 21. By providing the second channel, the smooth movement of the piston rod 21 can be further ensured, avoiding jamming or blockage during operation. The floating joint 9 can adapt to minor offsets of the piston rod 21 during operation, ensuring a stable connection between the adjusting rod 4 and the piston rod 21. Specifically, the design of the floating joint 9 allows the adjusting rod to float freely within a certain range of the piston rod 21, thereby compensating for vibrations or minor deformations generated by the cylinder device during operation and preventing connection failure or damage caused by these minor changes.

[0040] Preferably, please refer to Figure 1 As shown, the floating joint 9 is provided with a spherical bearing 91 for bearing radial force; this can effectively absorb and mitigate the vibration and impact force generated by the cylinder device during operation, and protect the cylinder device from damage.

[0041] Further, please refer to Figure 1 As shown, the cylinder bracket 1 is equipped with a protective cover 10. By setting the protective cover 10, the cylinder device can be effectively protected from interference and damage from the external environment, such as preventing dust, debris and other objects from entering the cylinder device and affecting its normal operation; at the same time, the protective cover 10 can also play a certain role in sound insulation and vibration reduction, reducing the noise and vibration generated by the cylinder device during operation and improving the working environment.

[0042] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A cylinder device for feeding bar stock clamping rollers, characterized in that, The device includes a cylinder bracket, a cylinder body mounted on the cylinder bracket, a piston rod disposed on the cylinder body and having a hollow interior, a piston sleeved on the piston rod and fixedly connected to the piston rod, an adjusting nut fixedly mounted on the piston rod, and an adjusting rod with one end passing through the piston rod. The adjusting nut is sleeved on the adjusting rod. The cylinder bracket is provided with an air inlet and an air outlet communicating with the cylinder body.

2. The cylinder device for feeding bar stock with a clamping roller according to claim 1, characterized in that, The cylinder bracket includes a first support seat and a second support seat arranged at an upper and lower interval, and a plurality of fixed shafts for connecting the first support seat and the second support seat. The cylinder body is disposed between the first support seat and the second support seat. The first support seat is provided with a first channel for the piston rod to pass through. The air outlet is disposed on the first support seat, and the air inlet is disposed on the second support seat.

3. The cylinder device for feeding bar stock with a clamping roller according to claim 2, characterized in that, The diameter of the air outlet is equal to the height of the first support, and the diameter of the air inlet is equal to the height of the second support.

4. The cylinder device for feeding bar clamps according to claim 2, characterized in that, The first support base is also provided with a limiting component for limiting the rotation of the adjusting nut.

5. The cylinder device for a bar clamping roller according to claim 4, characterized in that, The limiting component includes a bracket disposed on the first support base and a pair of clamping arms, one end of which is rotatably disposed on the bracket, and the other ends of the pair of clamping arms cooperate to clamp the adjusting nut.

6. The cylinder device for feeding bar stock with a clamping roller according to claim 1, characterized in that, The piston is fixedly mounted on the piston rod by a locking nut.

7. The cylinder device for a bar clamping roller according to claim 2, characterized in that, It also includes a cover for sealing the piston rod and a fastening screw for fixing the cover to the piston rod. The adjusting nut has a step for abutting against the cover, and the piston rod has a support nut on the side facing away from the cover for abutting against the first support seat to support the piston rod.

8. The cylinder device for a bar clamping roller according to claim 2, characterized in that, The second support base has a second channel corresponding to the first channel position for the piston rod to pass through, and the end of the adjusting rod that passes through the piston rod is provided with a floating joint.

9. The cylinder device for a bar clamping roller according to claim 8, characterized in that, The floating joint is equipped with a spherical bearing for bearing radial forces.

10. A cylinder device for feeding bar clamps according to any one of claims 1 to 9, characterized in that, The cylinder bracket is equipped with a protective cover.

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