阅读说明：本技术 卧式盘卷打捆机的提速机构 (Speed-up mechanism of horizontal type coil bundling machine ) 是由 彭耀 包家汉 叶小华 郭应方 袁茂华 干国强 黄骏 马淑瑾 于 2020-06-02 设计创作，主要内容包括：本发明公开了卧式盘卷打捆机的提速机构,它包括压紧主油缸、连杆结构、摆动结构；压紧主油缸固定在底座上,连杆结构的两端分别与压紧主油缸、摆动结构连接,摆动结构固定在压盘上；连杆结构包括连杆Ⅰ、连杆Ⅱ,连杆Ⅰ与连杆Ⅱ之间铰接,连杆Ⅰ的另一端与压紧主油缸的叉头铰接,连杆Ⅱ的另一端与摆动结构连接且两者一起铰接在压盘上。本发明可以在不提高液压系统能力的条件下实现打捆机压盘的快速移动,从而将原打捆机的总动作周期时间由原来的32秒降低为23秒,大大提高了工作效率,创造了巨大的经济效益。同时,本发明相对于现有的通过增大液压系统的能力或者采用电液结合的方式来提高速度的方式,成本较低,维修简单。(The invention discloses a speed-up mechanism of a horizontal type coil bundling machine, which comprises a pressing main oil cylinder, a connecting rod structure and a swinging structure; the pressing main oil cylinder is fixed on the base, two ends of the connecting rod structure are respectively connected with the pressing main oil cylinder and the swinging structure, and the swinging structure is fixed on the pressure plate; the connecting rod structure comprises a connecting rod I and a connecting rod II, the connecting rod I is hinged to the connecting rod II, the other end of the connecting rod I is hinged to a fork head of the compression main oil cylinder, the other end of the connecting rod II is connected with the swinging structure, and the connecting rod I and the swinging structure are hinged to the pressure plate together. The invention can realize the quick movement of the pressure plate of the bundling machine under the condition of not improving the capacity of a hydraulic system, thereby reducing the total action cycle time of the original bundling machine from 32 seconds to 23 seconds, greatly improving the working efficiency and creating huge economic benefits. Meanwhile, compared with the existing mode of increasing the speed by increasing the capacity of a hydraulic system or adopting an electro-hydraulic combination mode, the hydraulic system has the advantages of low cost and simple maintenance.)

1. Horizontal bundling machine's of coiling acceleration mechanism, characterized by: the device comprises a pressing main oil cylinder (3), a connecting rod structure and a swinging structure; the pressing main oil cylinder (3) is fixed on the base (12), two ends of the connecting rod structure are respectively connected with the pressing main oil cylinder (3) and the swinging structure, and the swinging structure is fixed on the pressure plate (11); the connecting rod structure comprises a connecting rod I (1) and a connecting rod II (2), the connecting rod I (1) is hinged to the connecting rod II (2), the other end of the connecting rod I (1) is hinged to a fork head of the compression main oil cylinder (3), the other end of the connecting rod II (2) is connected with the swinging structure, and the other end and the swinging structure are hinged to the pressure plate (11) together.

2. The speed increasing mechanism of claim 1, wherein: the hinge points A and B at the two ends of the connecting rod structure are on the same horizontal line; the point A is a hinged point of a fork head of the connecting rod I (1) and the pressing main oil cylinder (3), and the point B is a hinged point of the connecting rod II (2) and the pressure plate (11).

3. The speed increasing mechanism of claim 1, wherein: the swing structure comprises a sector gear (6), a rack (7), a rack guide rail (8) and a connecting rod pushing oil cylinder (9); a connecting rod pushing oil cylinder (9) is fixed on a pressure plate, a fork head of the connecting rod pushing oil cylinder is connected with a rack (7), a rack guide rail (8) is fixed on the pressure plate (11) and is located behind the rack (7), the rack (7) moves left and right in the rack guide rail (8), a sector gear (6) is connected with a connecting rod I (1) and is hinged to the pressure plate (11) together, and the sector gear (6) is meshed with the rack (7).

4. The speed increasing mechanism of claim 3, wherein: the connecting mode of the connecting rod (1) and the sector gear (6) can be flat key connection or spline connection.

5. The speed increasing mechanism of claim 3, wherein: the movement mode of the rack (7) relative to the rack guide rail (8): the rack (7) and the rack guide rail (8) can move left and right through the mutually matched convex blocks and the grooves, or the rack (7) is connected with the roller (10) and moves left and right in the rack guide rail (8) through the roller (10).

6. The speed increasing mechanism of claim 1, wherein: the swing structure comprises a swing hydraulic motor, an output shaft of the swing hydraulic motor is connected with the connecting rod I (1) through a pin shaft, and the output shaft and the connecting rod I are hinged to the pressure plate (11) together.

7. The speed increasing mechanism of claim 1, wherein: the swing structure comprises a swing oil cylinder, a fork head of the swing oil cylinder is connected with the connecting rod I (1) through a pin shaft, and the fork head and the connecting rod I are hinged to the pressure plate (11) together.

8. The speed increasing mechanism of claim 1, wherein: the speed-up mechanism further comprises a main oil cylinder fork head guide rail (4), the main oil cylinder fork head guide rail (4) is fixed on the base (12), and a roller connected with a fork head of the pressing main oil cylinder (3) moves left and right along the main oil cylinder fork head guide rail (4).

9. The speed increasing mechanism of claim 8, wherein: the height of the main oil cylinder fork guide track (4) is consistent with that of a fork of the pressing main oil cylinder (3), and the length of the main oil cylinder fork guide track is not less than the stroke of a piston of the pressing main oil cylinder (3); when the main pressing oil cylinder (3) is in an initial state, the roller connected with the fork head of the main pressing oil cylinder is just positioned at the leftmost end of the fork head guide rail (4) of the main pressing oil cylinder.

10. The speed increasing mechanism of claim 1, wherein: speed-raising mechanism still includes limit structure, and limit structure includes spacing top (5), and spacing top (5) are fixed on pressure disk (11), and its high position does: the connecting line between the point A and the point B of the hinge point at the two ends of the connecting rod structure is slightly higher, namely the connecting rod I (1) and the connecting rod II (2) are opened above the connecting rod structure when the connecting rod structure is in an approximate horizontal linear state.

11. The speed increasing mechanism of claim 10, wherein: the left and right positions of the limiting ejector (5) are as follows: when the connecting rod I (1) and the connecting rod II (2) are opened to be in an approximate horizontal straight line state, any position except the hinge point A and the hinge point B at the two ends of the connecting rod structure is removed.

12. The speed increasing mechanism of claim 10, wherein: the limiting structure further comprises a limiting ejector block, the limiting ejector block is located on the connecting rod I (1) or the connecting rod II (2), and the upper portion of the limiting ejector block can be in point contact with the lower portion of the limiting ejector head (5) or in surface contact with the lower portion of the limiting ejector head.

13. The speed increasing mechanism of claim 12, wherein: the limiting top block and the connecting rod can be of a split structure or an integrated structure.

14. A speed increasing mechanism according to any one of claims 1 to 11, wherein: two sets of speed-up mechanisms (15) are respectively arranged at the left side and the right side of the horizontal type coiling machine, a left pressing main oil cylinder and a right pressing main oil cylinder in the two sets of speed-up mechanisms synchronously act, and oil cylinders or hydraulic motors in a left swinging device and a right swinging device synchronously act, so that the left pressing disc and the right pressing disc realize synchronous compression or retraction movement.

Technical Field

The invention relates to a horizontal coil bundling machine, in particular to a speed-up mechanism of the horizontal coil bundling machine.

Background

As shown in fig. 5, two opposite-pushing pressing plates for pressing the coil of the existing horizontal coil bundling machine are driven by a single hydraulic cylinder all the way, and in order to achieve enough bundling pressing force (40 tons) and a larger pushing stroke (2600 mm), the cylinder diameter and the rod diameter of the hydraulic cylinder are designed to be larger so as to provide enough pressure area and pressure rod stability. Therefore, the hydraulic system of the existing horizontal coil bundling machine configuration can only meet the conditions that the pressing disc advances at the average speed of 308 mm/s (which takes 7 seconds) and retracts at the average speed of 270 mm/s (which takes 8 seconds), and the result is that the total action cycle time of the bundling machine is 32 seconds.

Because the coiling bundling machine is an online device on a high-speed wire rod continuous production line, the continuously accelerated rolling rhythm requires that the running speed of the coiling bundling machine is as high as possible, and for an oil cylinder with a larger cylinder diameter and a larger rod diameter, the quick action of the coiling bundling machine requires that a hydraulic system has enough flow to ensure the operation.

Various attempts have been made by foreign peers to overcome the slow speed of the prior art, and the main methods include the following two types: firstly, capacity of a hydraulic system is increased: for example, the number of hydraulic pumps is increased or a high-low pressure pump combination mode is adopted, a high-flow series pump is used for obtaining a higher speed in a low-load section pushed by a pressure plate, a high-pressure small-flow pump is used for completing the final pressing action in a high-load section, and the high-flow pump enables the pressure plate to quickly return after bundling is finished; this approach can add significant cost to the hydraulic system and is costly to later repair: secondly, adopting an electro-hydraulic combination mode: the gear motor is utilized to drive two pressing plates which are pushed in opposite directions to quickly push in a low-load section, then the two pressing plates are hooked together through a hook to form a closed frame mechanism, finally, a built-in oil cylinder which is pushed along with the pressing plates completes the pressing action of coiling, after bundling is finished, the hook of the pressing plate is opened, and a built-in pressing main oil cylinder and the pressing plates return simultaneously: the built-in oil cylinder adopted by the method is provided with a hydraulic system, the cost is very high, and in addition, the total cost of the equipment is higher by using a quick propulsion system using electric power.

Therefore, whether the equipment running speed can be faster or not can be realized on the premise of not improving the capacity of the hydraulic system, so that the total action period time is greatly shortened, and the problem of improving the working efficiency of bundling is the problem which is urgently solved at present.

Disclosure of Invention

The invention aims to solve the problem of providing a speed-up mechanism of a horizontal coil bundling machine, which can realize the quick movement of a bundling machine pressure plate under the condition of not improving the capacity of a hydraulic system, thereby reducing the total action cycle time of the original bundling machine from 32 seconds to 23 seconds, greatly improving the working efficiency and creating huge economic benefits. Meanwhile, compared with the existing mode of increasing the speed by increasing the capacity of a hydraulic system or adopting an electro-hydraulic combination mode, the hydraulic system has the advantages of low cost and simple maintenance.

The invention relates to a speed-up mechanism of a horizontal coil bundling machine, which comprises a pressing main oil cylinder, a connecting rod structure and a swinging structure; the pressing main oil cylinder is fixed on the base, two ends of the connecting rod structure are respectively connected with the pressing main oil cylinder and the swinging structure, and the swinging structure is fixed on the pressure plate; the connecting rod structure comprises a connecting rod I and a connecting rod II, the connecting rod I is hinged to the connecting rod II, the other end of the connecting rod I is hinged to a fork head of the compression main oil cylinder, the other end of the connecting rod II is connected with the swinging structure, and the connecting rod I and the swinging structure are hinged to the pressure plate together.

Furthermore, the hinge points A and B at the two ends of the connecting rod structure are on the same horizontal line; the point A is the pin joint of connecting rod I and the main oil cylinder fork head that compresses tightly, and the point B is the pin joint of connecting rod II and pressure disk.

Furthermore, the swing structure comprises a sector gear, a rack guide rail and a connecting rod pushing oil cylinder; the connecting rod pushes the oil cylinder to fix on pressure plate, its fork head connects the rack, the rack guide rail is fixed on pressure plate and located behind the rack, the rack moves left and right in the rack guide rail, the sector gear connects with connecting rod I and both articularly connect on pressure plate together, the sector gear meshes with rack.

Furthermore, the connecting mode of the connecting rod and the sector gear can be flat key connection or spline connection.

Further, the moving mode of the rack relative to the rack guide rail: the rack and the rack guide rail can move left and right through the mutually matched convex blocks and the grooves, and the rack can be connected with the roller to move left and right in the rack guide rail through the roller.

Further, swing structure includes swing hydraulic motor, and swing hydraulic motor's output shaft is connected and both articulate on the pressure disk together through round pin axle and connecting rod I.

Furthermore, the swing structure comprises a swing oil cylinder, a fork head of the swing oil cylinder is connected with the connecting rod I through a pin shaft, and the fork head and the connecting rod I are hinged to the pressure plate together.

Furthermore, the speed raising mechanism further comprises a main oil cylinder fork head guide rail, the main oil cylinder fork head guide rail is fixed on the base, and a roller connected with the pressing main oil cylinder fork head moves left and right along the main oil cylinder fork head guide rail.

Furthermore, the height of the main oil cylinder fork guide track is consistent with that of a fork of the compression main oil cylinder, and the length of the main oil cylinder fork guide track is not less than the stroke of a piston of the compression main oil cylinder; when the main pressing oil cylinder is in an initial state, the roller connected with the fork head of the main pressing oil cylinder is just positioned at the leftmost end of the fork head guide rail of the main pressing oil cylinder.

Further, speed-raising mechanism still includes limit structure, and limit structure includes spacing top, and spacing top is fixed on the pressure disk, and its high position is: the connecting line between the point A and the point B of the hinge point at the two ends of the connecting rod structure is slightly higher than the connecting line when the connecting rod I and the connecting rod II are opened to be in an approximate horizontal straight line state.

Further, the left and right positions of the limit plug are as follows: when the connecting rod I and the connecting rod II are opened to be in an approximate horizontal straight line state, any positions except the hinge point A and the hinge point B at the two ends of the connecting rod structure are removed.

Furthermore, the limiting structure further comprises a limiting ejector block, the limiting ejector block is positioned on the connecting rod I or the connecting rod II 2, and the upper portion of the limiting ejector block can be in point contact with the lower portion of the limiting ejector head or in surface contact with the lower portion of the limiting ejector head.

Furthermore, the limiting top block and the connecting rod can be of a split structure or an integrated structure.

Furthermore, two sets of speed-up mechanisms are respectively arranged at the left side and the right side of the horizontal type coiling machine, a left pressing main oil cylinder and a right pressing main oil cylinder in the two sets of speed-up mechanisms synchronously act, and oil cylinders or hydraulic motors in the left swinging device and the right swinging device synchronously act, so that the left pressing plate and the right pressing plate realize synchronous compression or retraction movement.

The working principle of the speed increasing mechanism is as follows: because the resistance of the first half section of the pressing plate in the pressing process is very small, the connecting rod in the connecting rod structure can be quickly moved under the very small flow requirement only by the action of the swinging structure to enable the connecting rod to be in a straightening state from a folding state, namely by utilizing a small oil cylinder or a small hydraulic motor (swinging structure) and the amplification effect of the connecting rod structure; because the resistance of the second half section of the pressing process of the pressure plate is gradually increased from small to large, and the connecting rod structure can bear larger thrust in a state of keeping an approximate straight line (slightly upwards arched to be in a stable state), the pressing main oil cylinder (the maximum thrust is 50 tons) is pushed at a low speed to complete the final pressing process of the pressure plate; after the bundling action is finished, because the resistance of the pressure plate returning to the initial position is very small, the pressure plate returns at a high speed under the superposition effect of the two actions of the main compression oil cylinder withdrawing and the connecting rod structure folding. Therefore, the invention perfectly realizes the related actions of the pressure plate by the combination of the swing structure and the connecting rod structure and the coordinated action of the main pressing oil cylinder, thereby meeting the use condition of the horizontal bundling machine.

The invention realizes the quick movement of the pressure plate of the bundling machine under the condition of not improving the capacity of a hydraulic system, thereby reducing the total action cycle time of the original bundling machine from 32 seconds to 23 seconds, greatly improving the working efficiency and creating huge economic benefits. Meanwhile, compared with the existing mode of increasing the capacity of a hydraulic system or improving the speed by adopting an electro-hydraulic combination mode, the hydraulic system has the advantages of low cost and simple maintenance.

Drawings

FIG. 1 is a schematic structural view of a speed increasing mechanism of a horizontal coil bundling machine according to the present invention;

FIG. 2 is a first working principle diagram of the speed-up mechanism of the horizontal coil bundling machine (when the connecting rod pushes the oil cylinder to start moving leftwards);

FIG. 3 is a second working schematic diagram of the speed-up mechanism of the horizontal coil bundling machine (when the connecting rod pushes the oil cylinder to push out in a full stroke);

FIG. 4 is a schematic diagram of the operation of a horizontal coil baler employing the speed increase mechanism of the present invention;

fig. 5 is a schematic structural view of a conventional horizontal coil bundler.

Detailed Description