Online bar cutting device

Abstract

The utility model provides an online bar cutting device and belongs to the technical field of metal processing. Comprising a square material penetrating pipe, two first rotating shafts and two second rotating shafts are rotationally connected to the material penetrating pipe, cutting rollers located on the material penetrating pipe are fixedly arranged on the first rotating shafts, wire clamping rollers are arranged on the second rotating shafts, the wire clamping rollers are connected with the second rotating shafts through torsional springs, and the wire clamping rollers are eccentric rollers; the cutting rollers are provided with cutting blades located outside the roller surfaces of the cutting rollers, the two wire clamping rollers are symmetrically distributed on the two sides of a bar in the material penetrating pipe, the two cutting rollers are symmetrically distributed on the two sides of the bar in the material penetrating pipe, the cutting device further comprises a driving mechanism for driving a first gear to rotate, and the first gear is meshed with a second gear and a first gear sector at the same time. The cutting device has the advantages of being good in cutting quality and the like.

Description

Technical Field

[0001] This utility model belongs to the field of metal processing technology and relates to an online bar cutting device. Background Technology

[0002] When metal bars are cut into segments online, a single-blade structure is generally used. The bar is cut by pressing down on the rotating moving cutting blade while it is being clamped. In addition, the clamping and cutting of the bar are controlled separately. Single-blade cutting is prone to causing the ends of the bar to bend, which is not conducive to continued transmission. Furthermore, controlling clamping and cutting separately is not conducive to efficient online cutting. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by providing an online bar cutting device. The technical problem this invention aims to solve is how to improve cutting quality.

[0004] The objective of this utility model can be achieved through the following technical solution: An online bar cutting device, characterized in that it includes a square feed tube, two first rotating shafts and two second rotating shafts rotatably connected to the feed tube, a cutting roller fixedly mounted on the first rotating shaft and a wire-clamping roller mounted on the second rotating shaft, the wire-clamping roller and the second rotating shaft being connected by a torsion spring, the wire-clamping roller being an eccentric roller, and the cutting roller having a cutting blade located outside the roller surface, the two wire-clamping rollers being symmetrically distributed inside the feed tube. On both sides of the bar stock, two cutting rollers are symmetrically distributed on both sides of the bar stock inside the feeding tube. The two first rotating shafts and the two second rotating shafts are all parallel to each other. One of the first rotating shafts is fixedly equipped with a gear 1, and the other of the first rotating shafts is fixedly equipped with a gear sector 1. One of the second rotating shafts is fixedly equipped with a gear 2, and the other of the second rotating shafts is fixedly equipped with a gear sector 2. The cutting device also includes a drive mechanism that drives the gear 1 to rotate. The gear 1 meshes with both the gear 2 and the gear sector 1, and the gear 2 meshes with the gear sector 2.

[0005] Furthermore, the drive mechanism includes a linear motor, and a gear and a meshing rack are fixedly connected to the output shaft of the linear motor.

[0006] Furthermore, the feed tube has a guide plate with a guide hole.

[0007] When gear one rotates at a certain angle, the two cutting blades approach the bar and cut it. At the same time as gear one rotates, gear two rotates in the opposite direction, driving the distal points of the two clamping rollers to approach each other and clamp the bar. Due to the action of the torsion spring, the clamping rollers only press the position behind the cutting point of the bar, ensuring that the bar remains straight during the cutting process. The two cutting blades approaching each other to cut the bar will not adversely affect the straightness of the bar, and also keep the cutting burrs in the center, so as not to affect the subsequent conveying of the bar. Cutting the bar under the clamped state can also avoid relative sliding between the bar and the cutting blades during cutting, thus improving the cut quality. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the bar cutting device.

[0009] Figure 2 This is a cross-sectional view of the feed tube.

[0010] In the diagram, 1 is the feed tube; 2 is the cutting roller; 3 is the wire clamping roller; 4 is the torsion spring; 5 is the gear one; 6 is the gear sector one; 7 is the gear two; 8 is the gear sector two; 9 is the linear motor; 10 is the rack; and 11 is the wire hole. Detailed Implementation

[0011] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0012] like Figure 1 and Figure 2 As shown, the device includes a square feeding tube 1, with two first rotating shafts and two second rotating shafts rotatably connected to the feeding tube 1. A cutting roller 2 is fixedly mounted on the first rotating shaft and located within the feeding tube 1. A wire-clamping roller 3 is mounted on the second rotating shaft and connected to the second rotating shaft via a torsion spring 4. The wire-clamping roller 3 is an eccentric roller. The cutting roller 2 has a cutting edge located outside its surface. The two wire-clamping rollers 3 are symmetrically distributed on both sides of the bar inside the feeding tube 1, and the two cutting rollers 2 are symmetrically distributed on the feeding tube 1. On both sides of the rod inside tube 1, the two first rotating shafts and the two second rotating shafts are parallel to each other. One of the first rotating shafts is fixedly equipped with a gear 5, and the other first rotating shaft is fixedly equipped with a gear sector 6. One of the second rotating shafts is fixedly equipped with a gear 7, and the other second rotating shaft is fixedly equipped with a gear sector 8. The cutting device also includes a drive mechanism that drives the gear 5 to rotate. The gear 5 meshes with the gear sector 7 and the gear sector 6 at the same time, and the gear sector 7 meshes with the gear sector 8.

[0013] The drive mechanism includes a linear motor 9, and a rack 10 meshing with a gear 5 is fixedly connected to the output shaft of the linear motor 9. The drive mechanism can also be a cylinder or an electromagnet.

[0014] The feed tube 1 has a guide plate with a guide hole 11.

[0015] When gear 5 rotates at a certain angle, the two cutting blades will approach the bar and cut it. At the same time as gear 5 rotates, gear 7 rotates in the opposite direction, driving the distal points of the two clamping rollers 3 to approach each other and clamp the bar. Under the action of torsion spring 4, the clamping rollers 3 only press the position behind the cutting point of the bar, ensuring that the bar remains straight during the cutting process. The two cutting blades approach each other to cut the bar, which will not have an adverse effect on the straightness of the bar. It also keeps the cutting burrs in the center and does not affect the subsequent conveying of the bar. Cutting the bar under the clamped state can also avoid relative sliding between the bar and the cutting blades during cutting, thus improving the cut quality.

[0016] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An online bar cutting device, characterized in that, The device includes a square feeding tube (1), on which two first rotating shafts and two second rotating shafts are rotatably connected. A cutting roller (2) is fixedly mounted on the first rotating shaft and a wire-clamping roller (3) is mounted on the second rotating shaft. The wire-clamping roller (3) is connected to the second rotating shaft via a torsion spring (4). The wire-clamping roller (3) is an eccentric roller. The cutting roller (2) has a cutting edge located outside its surface. The two wire-clamping rollers (3) are symmetrically distributed on both sides of the bar inside the feeding tube (1), and the two cutting rollers (2) are symmetrically distributed on... On both sides of the bar inside the feed tube (1), the two first rotating shafts and the two second rotating shafts are parallel to each other. One of the first rotating shafts is fixedly equipped with a gear 1 (5), and the other first rotating shaft is fixedly equipped with a gear sector 1 (6). One of the second rotating shafts is fixedly equipped with a gear 2 (7), and the other second rotating shaft is fixedly equipped with a gear sector 2 (8). The cutting device also includes a drive mechanism that drives the gear 1 (5) to rotate. The gear 1 (5) meshes with the gear 2 (7) and the gear sector 1 (6) at the same time. The gear 2 (7) meshes with the gear sector 2 (8).

2. The online bar cutting device according to claim 1, characterized in that, The drive mechanism includes a linear motor (9), and a rack (10) meshing with a gear (5) is fixedly connected to the output shaft of the linear motor (9).

3. The online bar cutting device according to claim 1, characterized in that, The feed tube (1) has a guide plate, and the guide plate has a guide hole (11).

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