Vertical segmented loop device

By designing a vertical segmented looper device, using stepper motors and servo motors to drive sprockets and limit blocks, convenient segmented input and centering clamping of sheet metal is achieved, solving the problem of inaccurate sheet metal feeding in existing devices and improving production stability and efficiency.

CN224062116UActive Publication Date: 2026-03-31GUANGDONG LITONGBAO MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The existing looper device is not convenient for segmented input of sheet metal, and it is not conducive to centering, clamping and limiting the sheet metal, which affects the accuracy and convenience of sheet metal movement and conveying.

Method used

A vertical segmented looper device is adopted, which uses a stepper motor to drive the sprocket and chain to move the looper, and uses a servo motor and a bidirectional lead screw to drive the limit block to center and clamp the sheet material, so as to achieve precise conveying of the sheet material.

Benefits of technology

It improves the accuracy and convenience of sheet material movement and conveying, avoids equipment downtime when changing rolls and receiving materials, and facilitates centering, clamping and limiting.

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Abstract

The utility model discloses a vertical segmented loop device which comprises a supporting frame and placing blocks, a plurality of sets of placing blocks are symmetrically installed at the bottom end of the supporting frame at equal intervals, a plurality of sets of lower loops are arranged below the supporting frame at equal intervals, and the two ends of each lower loop are movably connected with the placing blocks respectively. A plurality of sets of stepping motors are symmetrically installed at the top end of the supporting frame at equal intervals, two sets of driving shafts are installed at the output ends of the stepping motors, chain wheels are installed on the surfaces of the driving shafts in a sleeving mode, chains are arranged on the surfaces of the chain wheels, the chains are meshed with the chain wheels, and balancing weights are installed at one ends of the chains. A plurality of sets of placing frames are arranged in the supporting frame at equal intervals, and the chains are connected with the placing frames. According to the utility model, not only is the plate convenient to input in a sectional manner and is the plate convenient to center, clamp and limit, but also the accuracy and convenience of moving and conveying the plate are improved.
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Description

Technical Field

[0001] This utility model relates to the field of looper technology, specifically a vertical segmented looper. Background Technology

[0002] Looping is used for storing and unloading strip material, enabling continuous and stable production without downtime due to roll changes or splicing. The original looping controlled storage and unloading through a single storage rack (single storage mode). Now, to meet different speed requirements, segmented looping storage is used. At low speeds, the storage capacity is small, and the single storage mode has high startup energy consumption; with segmented looping storage, only one segment needs to be started, resulting in low startup energy consumption. At high speeds, the single storage mode rack is too long and heavy, and uneven force during vertical movement can easily cause significant strip misalignment. The segmented looping has multiple storage racks, each shorter and lighter, with high installation precision, controllable vertical force, minimal misalignment, and smooth operation.

[0003] For example, the looper device disclosed in the authorization announcement number CN214767842U includes a frame, a motor, a dual-output shaft reducer, a first coupling, a second coupling, a first transmission sprocket set, and a second transmission sprocket set. The motor and the dual-output shaft reducer are fixed to the frame. The output end of the motor is connected to the input end of the dual-output shaft reducer. One output end of the dual-output shaft reducer is connected to the first transmission sprocket set through the first coupling, and the other output end of the dual-output shaft reducer is connected to the second transmission sprocket set through the second coupling.

[0004] Although this utility model improves the precision of the transmission link, reduces the cumulative tolerance of flatness during the lifting and lowering of the movable roller device, and reduces the cumulative tolerance of parallelism between the rollers in the movable roller device and the fixed roller device, it avoids the phenomenon of strip running off track in the looper and meets the requirements of continuous product production.

[0005] However, it has not solved the problem that the existing looper device is not conducive to convenient segmented input of sheet metal, nor to centering, clamping and limiting the sheet metal, which affects the accuracy and convenience of sheet metal movement and conveying. Utility Model Content

[0006] The purpose of this utility model is to provide a vertical segmented looper device to solve the problems mentioned in the background art, such as the inconvenience of segmented input of sheet metal, the difficulty in centering and clamping the sheet metal, and the impact on the accuracy and convenience of sheet metal movement and conveying.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a vertical segmented looper device, comprising a support frame and placement blocks. Multiple sets of placement blocks are symmetrically installed at equal intervals at the bottom of the support frame. Multiple sets of lower loopers are arranged at equal intervals below the support frame, with both ends of the lower loopers movably connected to the placement blocks. Multiple sets of stepper motors are symmetrically installed at equal intervals at the top of the support frame. Each stepper motor has two drive shafts installed at its output end. Each drive shaft has a sprocket mounted on its surface, and each sprocket has a chain on its surface, with the chain meshing with the sprocket. A counterweight is installed at one end of each chain. Multiple sets of placement frames are arranged at equal intervals inside the support frame, with the chain connected to the placement frames. Multiple sets of upper loopers are arranged at equal intervals at the top of each placement frame, and the upper loopers are movably connected to the placement frames.

[0008] Preferably, each of the lower loops is equipped with a servo motor, and the servo motor is fixedly connected to the lower loop.

[0009] Preferably, the output end of each servo motor is equipped with a bidirectional lead screw, and the bidirectional lead screw is movably connected to the lower loop.

[0010] Preferably, the surface of the bidirectional lead screw is fitted with two sets of threaded sleeves, and the threaded sleeves are threadedly connected to the bidirectional lead screw.

[0011] Preferably, three sets of equidistant limiting blocks are installed on the outer wall of the threaded sleeve, and the limiting blocks are slidably connected to the lower loose sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the looper device not only realizes convenient segmented input of sheet metal, which facilitates the centering, clamping and limiting of sheet metal, but also improves the accuracy and convenience of sheet metal movement and conveying.

[0013] (1) The stepper motor drives the drive shaft to rotate, the drive shaft drives the sprocket to rotate, the sprocket drives the chain to move, the chain drives the counterweight to move upward, and under the gravity of the placement frame, the placement frame moves downward. The placement frame drives the upper looper to move downward and approach the lower looper. Then the sheet material is alternately wrapped around the surface of the upper and lower loopers and connected to the production end. The production end drives the sheet material to move. The upper and lower loopers play the role of smoothing the sheet material. There are three sets of loopers in the device, which can move independently. This can avoid the equipment stopping when changing rolls and connecting materials. When the sheet metal passes over the lower looper surface, the servo motor drives the bidirectional lead screw to rotate, which in turn drives two sets of threaded sleeves to move towards each other. The threaded sleeves then drive the limit blocks to approach each other and contact both sides of the sheet metal. The lower looper provides sliding support for the threaded sleeves, and the limit blocks center and limit the sheet metal to prevent it from deviating during movement. This improves the accuracy of sheet metal movement and conveying, enabling convenient segmented sheet metal input, reducing equipment downtime caused by changing rolls and splicing, facilitating the centering, clamping, and limiting of the sheet metal, and improving the accuracy of sheet metal movement and conveying. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a side view sectional structural diagram of the present invention;

[0016] Figure 3 This is a front view cross-sectional structural diagram of the present invention;

[0017] Figure 4 This is a three-dimensional perspective diagram of the lower loop structure of this utility model.

[0018] In the diagram: 1. Support frame; 2. Placement frame; 3. Chain; 4. Sprocket; 5. Stepper motor; 6. Drive shaft; 7. Lower looper; 8. Placement block; 9. Counterweight block; 10. Upper looper; 11. Two-way lead screw; 12. Threaded sleeve; 13. Limit block; 14. Servo motor. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] Please see Figure 1-4The present invention provides an embodiment of a vertical segmented loop device, comprising a support frame 1 and placement blocks 8. Multiple sets of placement blocks 8 are symmetrically installed at equal intervals at the bottom end of the support frame 1. Multiple sets of lower loops 7 are arranged at equal intervals below the support frame 1, with both ends of the lower loops 7 movably connected to the placement blocks 8. Multiple sets of stepper motors 5 are symmetrically installed at equal intervals at the top end of the support frame 1, with each stepper motor 5 serving as a power drive. Two sets of drive shafts 6 are installed at the output end of each stepper motor 5. Each drive shaft 6 has a sprocket 4 mounted on its surface, and each sprocket 4 has a chain 3 mounted on its surface. The chain 3 meshes with the sprocket 4. A counterweight 9 is installed at one end of each chain 3. Multiple sets of placement racks 2 are arranged at equal intervals inside the support frame 1, with the chain 3 connected to the placement racks 2. Multiple sets of upper loops 10 are arranged at equal intervals at the top end of each placement rack 2, with the upper loops 10 movably connected to the placement rack 2.

[0021] Each of the lower loops 7 is equipped with a servo motor 14, which serves as a power drive and is fixedly connected to the lower loop 7.

[0022] The output end of the servo motor 14 is equipped with a bidirectional lead screw 11, and the bidirectional lead screw 11 is movably connected to the lower sleeve 7. The surface of the bidirectional lead screw 11 is fitted with two sets of threaded sleeves 12, and the threaded sleeves 12 are threadedly connected to the bidirectional lead screw 11.

[0023] Three sets of equidistant limit blocks 13 are installed on the outer wall of the threaded sleeve 12, and the limit blocks 13 are slidably connected to the lower loose sleeve 7.

[0024] Turn on stepper motor 5, which drives drive shaft 6 to rotate. Drive shaft 6 drives sprocket 4 to rotate, sprocket 4 drives chain 3 to move, and chain 3 drives counterweight 9 to move upward. Under the gravity of placement frame 2, placement frame 2 moves downward, causing upper loop 10 to move downward and approach lower loop 7. Then, the sheet metal is alternately wrapped around the surfaces of upper loop 10 and lower loop 7, and the sheet metal is connected to the production processing end. The production processing end drives the sheet metal to move. Upper loop 10 and lower loop 7 play the role of smoothing the sheet metal. This device has three sets of loop devices, which can move independently. This can avoid equipment downtime when changing rolls and splicing materials. When the sheet metal is in the lower... When the looper 7 passes over the surface, the servo motor 14 is turned on, and the servo motor 14 drives the bidirectional lead screw 11 to rotate. Under the threaded connection between the bidirectional lead screw 11 and the threaded sleeve 12, the bidirectional lead screw 11 drives the two sets of threaded sleeves 12 to move towards each other. The threaded sleeves 12 drive the limiting blocks 13 to approach each other and contact the two sides of the sheet. The lower looper 7 provides sliding support for the threaded sleeves 12, and the limiting blocks 13 center and limit the sheet to prevent the sheet from deviating during movement, thereby improving the accuracy of sheet movement and conveying. This realizes convenient segmented sheet input, reduces the situation of equipment downtime caused by changing rolls and splicing, facilitates the centering, clamping and limiting of the sheet, and improves the accuracy of sheet movement and conveying.

[0025] Working principle: Stepper motor 5 drives drive shaft 6 to rotate, drive shaft 6 drives sprocket 4 to rotate, sprocket 4 drives chain 3 to move, chain 3 drives counterweight 9 to move upward. Under the gravity of placement frame 2, placement frame 2 moves downward, causing upper loop 10 to move downward and approach lower loop 7. Then, the sheet metal is alternately wrapped around the surfaces of upper loop 10 and lower loop 7, connecting the sheet metal to the production end. The production end drives the sheet metal to move. Upper loop 10 and lower loop 7 serve to smooth the sheet metal. This device contains three sets of loop devices. It can move independently, which avoids equipment downtime when changing rolls and receiving materials. When the sheet material passes over the surface of the lower looper 7, the servo motor 14 drives the bidirectional lead screw 11 to rotate. The bidirectional lead screw 11 drives the two sets of threaded sleeves 12 to move towards each other. The threaded sleeves 12 drive the limiting blocks 13 to approach each other and contact the two sides of the sheet material. The lower looper 7 provides sliding support for the threaded sleeves 12, and the limiting blocks 13 center and limit the sheet material to prevent it from deviating during movement and improve the accuracy of sheet material movement and conveying. The above is the complete usage of the vertical segmented looper device.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A vertical segmental loosing device comprising a supporting frame (1) and a placing block (8), characterized in that: The bottom end of the support frame (1) is symmetrically provided with multiple groups of placement blocks (8) at equal intervals, the lower side of the support frame (1) is provided with multiple groups of lower sleeves (7) at equal intervals, and the two ends of the lower sleeve (7) are movably connected with the placement blocks (8), respectively, the top end of the support frame (1) is symmetrically provided with multiple groups of stepping motors (5) at equal intervals, the output end of the stepping motor (5) is provided with two groups of driving shafts (6), the surface of the driving shaft (6) is sleeved with a chain wheel (4), the surface of the chain wheel (4) is provided with a chain (3), and the chain (3) and the chain wheel (4) are meshed with each other, one end of the chain (3) is provided with a counterweight (9), the inside of the support frame (1) is provided with multiple groups of placement racks (2) at equal intervals, and the chain (3) is connected with the placement rack (2), the top end of the placement rack (2) is provided with multiple groups of upper sleeves (10) at equal intervals, and the upper sleeve (10) is movably connected with the placement rack (2).

2. A vertical segmented loop device according to claim 1, characterized in that: The inside of the lower sleeve (7) is provided with a servo motor (14), and the servo motor (14) is fixedly connected with the lower sleeve (7).

3. A vertical segmented loop device according to claim 2, characterized in that: The output end of the servo motor (14) is provided with a bidirectional screw rod (11), and the bidirectional screw rod (11) is movably connected with the lower sleeve (7).

4. A vertical segmented loop device according to claim 3, characterized in that: The surface of the bidirectional screw rod (11) is sleeved with two groups of threaded sleeves (12), and the threaded sleeves (12) are threadedly connected with the bidirectional screw rod (11).

5. A vertical segmented loop device according to claim 4, characterized in that: The outer wall of the threaded sleeve (12) is provided with three groups of limiting blocks (13) at equal intervals, and the limiting blocks (13) are slidably connected with the lower sleeve (7).