Pushing device of rolling mill

Abstract

The utility model discloses a material pushing device of a rolling mill, which comprises a pushing cylinder and a material pushing structure, and the material pushing structure comprises a rotary material pushing rod, a mandrel and a clamping seat. A groove is formed in the clamping seat in the length direction, and coaxial through holes are formed in clamping seat bodies at the two ends of the groove respectively; the mandrel is movably positioned in the through hole of the clamping seat, and the length of the mandrel is greater than that of the clamping seat; the rotary material pushing rod is provided with a swinging part which can be arranged on the core shaft in the groove of the clamping seat in a sleeving manner, the swinging part can swing around the core shaft, a material pushing part is arranged on the swinging part, and a spiral groove is formed in the swinging part; the mandrel is radially connected with a limiting pin, and the limiting pin is located in the spiral groove and can move along the spiral groove; the pushing cylinder comprises a pushing rod capable of moving in the axial direction of the pushing cylinder, and one end of the pushing rod is connected with the mandrel. The blank pushing device has the advantage that each pushed blank is accurately gripped by the rolling mill.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling mills, in particular to a material pushing device for a rolling mill. Background Art

[0002] In the rolling production of aluminum plates, the billet is generally preheated to a set temperature and rolled through a rolling mill to obtain a plate product with thickness and plate shape that meets the requirements.

[0003] There are feeding rollers arranged in front and behind the rolling mill. The rollers transport the billets and cooperate with the rolling mill to roll aluminum. The existing rollers are used to transport light and short (referring to the size along the feeding direction) aluminum. Due to the small friction between the light and short aluminum and the rollers, the rollers cannot drive the aluminum forward. Especially when the size in the feeding direction is smaller than the center distance between two adjacent rollers, the billets cannot be smoothly transported and the rolling mill cannot bite the billets normally. Manual pushing is required, resulting in low efficiency and production safety hazards. Summary of the invention

[0004] The utility model aims to overcome the above-mentioned deficiencies of the prior art and provide a rolling mill pusher device, which has the advantage of allowing each pushed billet to be accurately bitten into the rolling mill.

[0005] The technical solution of the utility model is: a rolling mill pushing device, which includes a pushing cylinder and a pushing structure, the pushing structure includes a rotating pushing rod, a core shaft and a clamping seat; the clamping seat is provided with a groove in the length direction, and coaxial through holes are respectively provided on the clamping seat body at both ends of the groove; the core shaft is movably located in the through hole of the clamping seat, and its length is greater than the length of the clamping seat; the rotating pushing rod is provided with a swinging part which can be sleeved on the core shaft in the groove of the clamping seat, the swinging part can swing around the core shaft, a pushing part is provided on the swinging part, and the swinging part is provided with a spiral groove; the core shaft is radially connected to a limit pin, the limit pin is located in the spiral groove and can move along the spiral groove; the pushing cylinder includes a pushing rod which can move along the axial direction of the pushing cylinder, and one end of the pushing rod is connected to the core shaft.

[0006] A further technical solution of the utility model is: it also includes a base and a guide rail located thereon, the pushing cylinder is fixedly connected to the guide rail through a cylinder holder, and the pushing structure is movably connected to the guide rail through a slider.

[0007] A further technical solution of the utility model is that the spiral groove of the swinging part and the pushing part are arranged like this: when the limit pin is located at the end of the spiral groove away from the pushing cylinder, the pushing part pushes the material; when the limit pin is located at the end of the spiral groove close to the pushing cylinder, the pushing part is lifted.

[0008] A further technical solution of the utility model is: the core shaft is provided with an axial anti-rotation groove, an anti-rotation pin is installed on the body at one end of the seat groove, one end of the anti-rotation pin is located in the anti-rotation groove, and the anti-rotation groove can move relative to the anti-rotation pin.

[0009] A further technical solution of the utility model is that the push rod is connected to the core shaft through threads.

[0010] A further technical solution of the utility model is that the pusher part is L-shaped, one end of which is connected to the swing part, and the other end of which is connected to the pusher plate.

[0011] A further technical solution of the utility model is that a reinforcing rib is welded between the pushing part and the swing part.

[0012] A further technical solution of the utility model is that a limit stopper is provided at one end of the oil cylinder holder close to the pushing structure.

[0013] A further technical solution of the utility model is that the pushing cylinder is an oil cylinder.

[0014] Compared with the prior art, the utility model has the following characteristics:

[0015] 1. The utility model adopts oil cylinder to push materials, which can ensure that each piece of material is accurately bitten into the rolling mill;

[0016] 2. Since the swinging part of the pushing structure of the utility model is provided with a spiral groove and the core shaft is equipped with a limit pin, when the pushing rod is extended, the core shaft is pushed to move forward, and the limit pin on the core shaft moves forward in the spiral groove, driving the swinging part to swing downward, thereby making the pushing part swing to a horizontal position for pushing; when the pushing rod is retracted, the core shaft is pulled to move backward, and when the holder is blocked by the stop block of the cylinder holder, the pushing rod continues to retract, driving the limit pin on the core shaft to move backward in the spiral groove, thereby driving the swinging part to swing upward, so that the pushing part is lifted up and leaves the horizontal position, thereby making way for the feeding position and preparing for the next pushing; at the same time, it can prevent the pushing part from scratching the material.

[0017] The detailed structure of the present utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0020] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the material pushing state of the material pushing part of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the pusher part of the utility model in a lifted state;

[0025] Figure 3 It is a three-dimensional view of the pushing state of the pushing part of the utility model. DETAILED DESCRIPTION Example

[0026] like Figure 1 - As shown in Figure 3, a rolling mill pushing device includes a pushing cylinder 1, a pushing structure, a base 4 and a guide rail 5 located thereon.

[0027] The pusher structure includes a rotating pusher rod, a core shaft 22 and a holder 23; the holder 23 is provided with a groove in the length direction, and the holder 23 body at both ends of the groove is provided with coaxial through holes; the core shaft 22 is movably located in the through hole of the holder 23, and its length is greater than the length of the holder 23, that is, the core shaft 22 can move left and right in the through hole of the holder 23, such as Figure 1 shown.

[0028] The rotating push rod is provided with a swinging part 211 which can be sleeved on the core shaft 22 in the groove of the clamping seat 23. The swinging part 211 can swing around the core shaft 22 and has a pushing part 212 thereon. The swinging part 211 is provided with a spiral groove 2111. The core shaft 22 is radially connected to a limit pin 3, and the limit pin 3 is located in the spiral groove 2111 and can move along the spiral groove 2111. That is, when the core shaft 22 moves left and right in the through hole of the clamping seat 23, the limit pin 3 is driven to move left and right in the spiral groove 2111, so that the swinging part 211 swings around the core shaft 22, that is, it is lowered or lifted relative to the horizontal plane.

[0029] In order to prevent the core shaft 22 from rotating when moving left and right, the core shaft 22 is provided with an axial anti-rotation groove 221, and an anti-rotation pin 8 is installed on the body at one end of the groove of the holder 23. One end of the anti-rotation pin 8 is located in the anti-rotation groove 221, and the anti-rotation groove 221 can move relative to the anti-rotation pin 8.

[0030] The push cylinder 1 comprises a push rod 11 which can move axially along the push cylinder 1. Preferably, the push cylinder 1 is an oil cylinder, but of course an air cylinder is also acceptable. One end of the push rod 11 is connected to the mandrel 22. Preferably, one end of the push rod 11 is threadedly connected to the mandrel 22, which is convenient for maintenance and replacement.

[0031] The guide rail 5 preferably adopts a dovetail guide rail, which has good guiding performance. The push cylinder 1 is fixedly connected to the guide rail 5 through the cylinder holder 6, that is, the push cylinder 1 is fixed on the cylinder holder 6, and the cylinder holder 6 is locked on the guide rail 5 through a dovetail fixing block. The pusher structure is movably connected to the guide rail 5 through a slider 7, that is, the holder 23 is fixed to the slider 7, and the slider 7 is a dovetail slider, which matches the dovetail guide rail 5. The pusher structure can move left and right along the guide rail 5 under the push of the push rod 11.

[0032] The spiral groove 2111 of the swinging part 211 and the pushing part 212 are arranged such that when the limiting pin 3 is located at the end of the spiral groove 2111 away from the pushing cylinder 1, as shown in FIG. Figure 1 When the limit pin 3 is located near the end of the spiral groove 2111 of the pushing cylinder 1, the pushing portion 212 is lifted, as shown in FIG. Figure 2 Status shown.

[0033] To facilitate pushing, the pushing portion 212 is L-shaped, one end of which is connected to the swing portion 211 , and the other end of which is connected to the pushing plate 2121 . Preferably, a reinforcing rib 2122 is welded between the pushing portion 212 and the swing portion 211 .

[0034] In order to facilitate the lifting of the swinging part 211, a limit stopper 61 is provided at one end of the cylinder holder 6 close to the pushing structure.

[0035] The working principle of the utility model is: when the push rod 11 extends to the right under the action of the push cylinder 1 (from Figure 1 ), the mandrel 2 is pushed forward, and the limit pin 3 on the mandrel 2 moves forward in the spiral groove 2111. Since the mandrel 2 is provided with an anti-rotation groove 221, the anti-rotation groove 221 cooperates with the anti-rotation pin 8 installed on the body of the holder 23, so that the mandrel 2 can only move left and right but not rotate, and the limit pin 3 forces the swing part 211 to swing around the mandrel 2. At this moment, the swing part 211 is driven to swing downward, so that the pusher 212 swings to a horizontal position to push the material forward, so that the light and short aluminum material is pushed to the rolling mill to be accurately bitten.

[0036] When the push rod 11 retracts under the action of the pushing cylinder 1, it moves to the left, pulling the core shaft 2 to move to the left, and the push part 212 maintains the state of pushing and retreats to the left. When the holder 23 is blocked by the stop block 61 of the cylinder holder 6, the push rod 11 continues to retract, driving the limit pin 3 on the core shaft 2 to move to the left in the spiral groove 2111, thereby driving the swing part 211 to swing upward, that is, lift up, so that the push part 212 is lifted up and leaves the horizontal position, thereby making way for the feeding position to prepare for the next push; at the same time, it can prevent the push part 212 from scratching the material.

[0037] The present invention is not limited to the above-mentioned specific structure. Any obvious replacement without departing from the concept of the present technical solution shall fall within the protection scope of the present invention.

Claims

1. A rolling mill pusher device, characterized in that: The invention comprises a pushing cylinder (1) and a pushing structure, wherein the pushing structure comprises a rotating pushing rod, a core shaft (22) and a holder (23); the holder (23) is provided with a groove in the length direction, and the holder (23) body at both ends of the groove is provided with coaxial through holes; the core shaft (22) is movably located in the through hole of the holder (23), and its length is greater than the length of the holder (23); the rotating pushing rod is provided with a swinging part (211) which can be sleeved on the core shaft (22) in the groove of the holder (23); ), the swinging portion (211) can swing around the core shaft (22), a material pushing portion (212) is provided on the swinging portion (211), and the swinging portion (211) is provided with a spiral groove (2111); the core shaft (22) is radially connected to a limit pin (3), the limit pin (3) is located in the spiral groove (2111) and can move along the spiral groove (2111); the pushing cylinder (1) comprises a pushing rod (11) that can move axially along the pushing cylinder (1), and one end of the pushing rod (11) is connected to the core shaft (22).

2. A rolling mill pusher device according to claim 1, characterized in that: It also includes a base (4) and a guide rail (5) located thereon, the pushing cylinder (1) is fixedly connected to the guide rail (5) via a cylinder holder (6), and the pushing structure is movably connected to the guide rail (5) via a slider (7).

3. A rolling mill pusher device according to claim 1 or 2, characterized in that: The spiral groove (2111) and the material pushing portion (212) of the swing portion (211) are arranged such that when the limit pin (3) is located at the end of the spiral groove (2111) away from the pushing cylinder (1), the material pushing portion (212) pushes the material; when the limit pin (3) is located at the end of the spiral groove (2111) close to the pushing cylinder (1), the material pushing portion (212) is lifted.

4. A rolling mill pusher device according to claim 1 or 2, characterized in that: The core shaft (22) is provided with an axial anti-rotation groove (221), an anti-rotation pin (8) is mounted on the body at one end of the groove of the holder (23), one end of the anti-rotation pin (8) is located in the anti-rotation groove (221), and the anti-rotation groove (221) can move relative to the anti-rotation pin (8).

5. A rolling mill pusher device according to claim 1 or 2, characterized in that: The push rod (11) is connected to the core shaft (22) via threads.

6. A rolling mill pusher device according to claim 1 or 2, characterized in that: The material pushing portion (212) is L-shaped, one end of which is connected to the swing portion (211), and the other end of which is connected to the material pushing plate (2121).

7. A rolling mill pusher device according to claim 6, characterized in that: A reinforcing rib (2122) is welded between the pushing portion (212) and the swing portion (211).

8. A rolling mill pusher device according to claim 2, characterized in that: A limit stopper (61) is provided at one end of the oil cylinder holder (6) close to the material pushing structure.

9. A rolling mill pusher device according to claim 1, characterized in that: The pushing cylinder (1) is an oil cylinder.

Images