A cold-rolled sheet crimping device

Abstract

The utility model relates to the technical field of desk and chair production equipment, concretely is a cold rolled plate hemming device, including work table, the top of work table is equipped with two mobile seat symmetrically, the top of two mobile seat is equipped with rotary hemming mechanism, the work table between two mobile seat is equipped with mould, the bottom of work table is equipped with the drive assembly for controlling its rotation in mould, the edge of mould bottom is equipped with guide slot, the top of two mobile seat is equipped with with guide slot cooperation makes the follow -up assembly of rotary hemming mechanism to workpiece accurate hemming, through set up quick -detach structure, guide slot and follow -up assembly, utilize follow -up assembly and the cooperation of guide slot, can according to mould shape automatic adjustment mobile seat's sliding track, need not to design transmission structure or write control program again for different workpieces, ensure two rotary hemming mechanism's movement track and workpiece shape complete matching, realize mobile seat and rotary hemming mechanism's self -adaptation movement.

Description

Technical Field

[0001] This utility model relates to the technical field of school desk and chair production equipment, and in particular to a cold-rolled steel plate edge rolling device. Background Technology

[0002] During the production of school desks and chairs, the cold-rolled steel sheets need to be rolled at the edges to prevent the sharp edges of the sheets from being exposed, thereby improving the safety and aesthetics of the desks and chairs.

[0003] A cold-rolled steel plate edge-rolling device for school desk and chair production, disclosed in Chinese Patent Publication No. CN214348904U, describes a device that, through the arrangement of a first motor, a turntable, a second motor, a first threaded rod, a moving plate, a moving box, a third motor, a second threaded rod, a connecting plate, a support plate, and an edge-rolling device body, can move the edge-rolling device body. This allows the edge-rolling device body to be adjusted according to the size of the desktop, and then edge-rolling the desktop body using the edge-rolling device body. However, according to existing cold-rolled steel plate edge-rolling devices and technologies in related fields, traditional devices often use linear modules to control the movement of the moving seat or edge-rolling mechanism. This requires pre-programming the path, and when processing different models of school desks and chairs, the program parameters need to be rewritten or adjusted. If the parameter settings are off, it can easily lead to asymmetrical edge rolling on both sides, dimensional deviations, and poor adaptability. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a cold-rolled steel plate edge rolling device.

[0005] The purpose of this utility model is achieved through the following technical solution: a cold-rolled steel plate edge-rolling device, including a worktable, two movable seats symmetrically slidably provided on the top of the worktable, a rotating edge-rolling mechanism provided on the top of each of the two movable seats, a mold provided on the worktable between the two movable seats, a drive component for controlling the rotation of the mold provided on the bottom of the worktable, the mold being connected to the drive component through a quick-release structure, a guide groove provided at the bottom edge of the mold, and a follow-up component provided on the top of each of the two movable seats that cooperates with the guide groove to enable the rotating edge-rolling mechanism to precisely edge-roll the workpiece.

[0006] Preferably, two slide rails are symmetrically fixedly installed on the top of the workbench, and each of the two movable seats has a slide groove corresponding to the position of the slide rail.

[0007] Preferably, the top of the mold is provided with a placement groove that fits the workpiece, and the guide groove has the same shape as the placement groove.

[0008] Preferably, the follower assembly includes a fixed post fixedly mounted on the top of the movable seat, and the top of the fixed post is provided with a ball bearing.

[0009] Preferably, the cross-sectional shape of the placement groove is arc-shaped, and the ball bearing fits into the placement groove.

[0010] Preferably, the drive assembly includes a rotating shaft rotatably mounted on the top of the worktable, a first motor is fixedly mounted on the side of the worktable near the rotating shaft, a gear is fixedly mounted on the output end of the first motor, and a gear ring is fixedly mounted on the outer surface of the rotating shaft, with the gear meshing with the gear ring.

[0011] Preferably, the quick-release structure includes a tray fixedly disposed at the top of the rotating shaft, a connector fixedly disposed at the center of the top of the tray, a connector groove adapted to the connector being opened at the center of the bottom of the mold, and the mold being fixedly mounted on the connector by quick-release bolts.

[0012] Preferably, the connector has a hexagonal cross-sectional shape, the top edge of the connector is chamfered, and the mold has a receiving groove corresponding to the position of the quick-release bolt head.

[0013] Preferably, the rotating hemming mechanism includes a rotating drive motor fixedly installed on the top of the movable seat, a track component fixedly installed at the output end of the rotating drive motor, a sliding seat slidably provided on the track component, a hemming component rotatably provided on the side of the sliding seat away from the track component, a second motor fixedly installed at the top end of the track component, a lead screw fixedly installed at the output end of the second motor, and a threaded hole adapted to the lead screw being opened on the sliding seat at the position corresponding to the lead screw.

[0014] The beneficial effects of this cold-rolled sheet edge-rolling device are as follows: by setting up a quick-release structure, guide groove and follower component, the sliding trajectory of the moving seat can be automatically adjusted according to the shape of the mold by utilizing the cooperation of the follower component and the guide groove. There is no need to redesign the transmission structure or write the control program for different workpieces. This ensures that the motion trajectory of the two rotating edge-rolling mechanisms is completely matched with the shape of the workpiece, realizes the adaptive motion of the moving seat and the rotating edge-rolling mechanism, reduces the manual intervention links, reduces the dependence on the operator's skills, and avoids product scrapping caused by human operation errors. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the state of the rolled edge part of this utility model after it comes into contact with the workpiece;

[0018] Figure 3 This is a schematic diagram showing the state of the mold of this utility model when it is rotating;

[0019] Figure 4 This is a schematic diagram of the internal structure of the mold of this utility model;

[0020] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A;

[0021] Figure 6 This utility model Figure 4 Enlarged structural diagram at point B;

[0022] Figure 7 This is a schematic diagram of the quick-release structure of this utility model;

[0023] Figure 8 This is a schematic diagram of the rotating hemming mechanism of this utility model.

[0024] In the diagram: 1. Workbench; 101. Slide rail; 2. Movable seat; 201. Slide groove; 3. Rotary hemming mechanism; 301. Rotary drive motor; 302. Track component; 303. Sliding seat; 304. Hemming component; 305. Second motor; 306. Lead screw; 4. Mold; 401. Placement slot; 402. Insertion slot; 403. Receiving slot; 5. Drive assembly; 501. Rotating shaft; 502. First motor; 503. Gear; 504. Gear ring; 6. Quick-release structure; 601. Tray; 602. Insertion component; 603. Quick-release bolt; 7. Guide groove; 8. Follower assembly; 801. Fixed column; 802. Ball bearing. Detailed Implementation

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0027] like Figures 1 to 8 As shown, a cold-rolled steel sheet edge-rolling device includes a worktable 1. Two movable seats 2 are symmetrically slidably mounted on the top of the worktable 1. Two slide rails 101 are symmetrically fixedly mounted on the top of the worktable 1. Each movable seat 2 has a groove 201 corresponding to a position on the slide rail 101. The slide rails 101 improve the stability of the two movable seats 2 during sliding. A rotating edge-rolling mechanism 3 is provided on the top of each movable seat 2. A mold 4 is located between the two movable seats 2 on the worktable 1. A drive assembly 5 for controlling the rotation of the mold 4 is located at the bottom of the worktable 1. The mold 4 is connected to the drive assembly 5 via a quick-release structure 6. A guide groove 7 is provided at the bottom edge of the mold 4. Both movable seats 2 are provided with follower components 8 on their tops that cooperate with guide grooves 7 to enable the rotary edge-rolling mechanism 3 to precisely roll the workpiece. The rotary edge-rolling mechanism 3 includes a rotary drive motor 301 fixedly installed on the top of the movable seat 2. A track component 302 is fixedly installed at the output end of the rotary drive motor 301. A sliding seat 303 is longitudinally slidably provided on the track component 302. An edge-rolling component 304 is rotatably provided on the side of the sliding seat 303 away from the track component 302. A second motor 305 is fixedly installed at the top of the track component 302. A lead screw 306 is fixedly installed at the output end of the second motor 305. A threaded hole that matches the position of the lead screw 306 is provided on the sliding seat 303.

[0028] like Figure 2 , Figure 3 and Figure 6 As shown, the top of the mold 4 is provided with a placement groove 401 that fits the workpiece. The guide groove 7 has the same shape as the placement groove 401. The shape of the mold 4 is completely consistent with the workpiece. The workpiece is placed in the placement groove 401 and can be automatically positioned by the inner wall of the mold 4, avoiding the offset problem when manually placed or positioned by a traditional platform.

[0029] like Figures 3 to 7As shown, the follower assembly 8 includes a fixed column 801 fixedly installed on the top of the movable seat 2. The fixed column 801 is fixedly installed on the top of the movable seat 2 by multiple bolts. The top of the fixed column 801 is provided with a ball bearing 802. The cross-sectional shape of the placement groove 401 is arc-shaped, and the ball bearing 802 fits into the placement groove 401. The movable seat 2 can automatically adjust the sliding trajectory according to the shape of the mold (i.e., the outline of the workpiece) through the cooperation of the ball bearing 802 and the guide groove 7. There is no need to redesign the transmission structure or write the control program for different workpieces. The whole adopts mechanical linkage to replace the complex electrical control system, which reduces the use of precision electronic components such as sensors and controllers, reduces the risk of downtime due to electronic failures, and at the same time, the replacement cost of wear parts of mechanical parts is low, making long-term use and maintenance more economical.

[0030] like Figure 6 As shown, the drive assembly 5 includes a rotating shaft 501 rotatably mounted on the top of the worktable 1. A first motor 502 is fixedly mounted on the side of the worktable 1 near the rotating shaft 501. A gear 503 is fixedly mounted on the output end of the first motor 502. A gear ring 504 is fixedly mounted on the outer surface of the rotating shaft 501. The gear 503 meshes with the gear ring 504.

[0031] like Figure 6 and Figure 7 As shown, the quick-release structure 6 includes a tray 601 fixedly mounted on the top of the rotating shaft 501. A connector 602 is fixedly mounted at the center of the top of the tray 601. A connector groove 402 adapted to the connector 602 is opened at the center of the bottom of the mold 4. The mold 4 is fixedly mounted on the connector 602 by a quick-release bolt 603. The connector 602 has a hexagonal cross-section and a chamfer at the edge of the top of the connector 602. A receiving groove 403 is opened at the position of the head of the quick-release bolt 603. By removing the quick-release bolt 603, the old mold 4 and the connector 602 can be separated, and the new mold 4 can be inserted into the connector 602. At this time, the chamfer of the connector 602 can improve the docking speed. Afterwards, the new mold 4 cooperates with the follow-up component 8 through the guide groove 7. There is no need to make complex mechanical adjustments or reprogram the equipment, which effectively shortens the changeover time, enhances the versatility of the equipment, and reduces the cost of multi-variety small-batch production.

[0032] The work process is as follows:

[0033] S1, such as Figure 1 , Figure 2 , Figure 6 and Figure 8As shown, in use, the workpiece to be made into a desk and chair is first placed into the placement slot 401, and then the first motor 502 controls the gear 503 to rotate. Then, the gear 503 meshes with the gear ring 504, so that the gear ring 504 drives the rotating shaft 501 to rotate. At this time, the second motor 305 controls the lead screw 306 to rotate, so that the sliding seat 303 drives the edge-rolling part 304 to move downward, so that the edge-rolling part 304 presses against the edge of the cold-rolled plate of the workpiece.

[0034] S2, such as Figure 6 and Figure 7 As shown, when the rotating shaft 501 rotates, the mold 4 can drive the workpiece to rotate by utilizing the cooperation between the connector 602 and the connector slot 402.

[0035] S3, such as Figures 3 to 7 As shown, when the mold 4 drives the workpiece to rotate, the guide groove 7 at the bottom of the mold 4 and the follower component 8 of the moving seat 2 can directly drive the two moving seats 2 to slide synchronously through the mechanical structure. There is no need to rely on the program control of the linear module (it is only necessary to program the rotating edge-rolling mechanism 3 according to the rotation amplitude and the round angle of the workpiece). This effectively eliminates the problem of misalignment of the moving seats 2 caused by the error in the program parameter setting, ensures that the motion trajectory of the two rotating edge-rolling mechanisms 3 is completely matched with the shape of the workpiece, realizes the adaptive motion of the moving seat 2 and the rotating edge-rolling mechanism 3, reduces the manual intervention link, reduces the dependence on the operator's skills, and avoids product scrapping caused by human operation errors.

[0036] S4, such as Figure 3 and Figure 8 As shown, when processing the rounded corner area, the rotary drive 301 controls the track component 302 to rotate, so that the edge-rolling component 304 can better fit the rounded corner area of ​​the workpiece.

[0037] S5, such as Figures 5 to 7 As shown, when processing different models of desks and chairs, by removing the quick-release bolt 603, the old mold 4 and the connector 602 can be separated, and then the new mold 4 and the connector 602 can be connected. At this time, the chamfer set by the connector 602 can improve the docking speed. Afterwards, the guide groove 7 of the new mold 4 cooperates with the follow-up component 8. There is no need to make complex mechanical adjustments or reprogram the equipment, which effectively shortens the changeover time, enhances the versatility of the equipment, and reduces the cost of multi-variety small-batch production.

[0038] S6, such as Figure 1 and Figure 8 As shown, two movable seats 2 are symmetrically equipped with independent rotating edge-rolling mechanisms 3, which can simultaneously roll the edges of both sides of the workpiece. Compared with the traditional single edge-rolling mechanism, this reduces the processing time per cycle and greatly improves production efficiency.

[0039] The rotary hemming mechanism 3 described in this application is known in the art, therefore its specific structure and working principle are not described in detail.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A cold-rolled steel sheet edge-rolling device, characterized in that: The worktable includes a workbench (1), on which two movable seats (2) are symmetrically slidably mounted. Each of the two movable seats (2) is equipped with a rotating edge-rolling mechanism (3). A mold (4) is located between the two movable seats (2) on the workbench (1). A drive assembly (5) for controlling the rotation of the mold (4) is located at the bottom of the workbench (1). The mold (4) is connected to the drive assembly (5) through a quick-release structure (6). A guide groove (7) is provided at the bottom edge of the mold (4). Each of the two movable seats (2) is equipped with a follower assembly (8) that cooperates with the guide groove (7) to enable the rotating edge-rolling mechanism (3) to precisely roll the workpiece.

2. The cold-rolled sheet edge-rolling device according to claim 1, characterized in that: The top of the workbench (1) is symmetrically fixed with two slide rails (101), and the two movable seats (2) are provided with slide grooves (201) at the positions corresponding to the slide rails (101).

3. The cold-rolled sheet edge-rolling device according to claim 1, characterized in that: The top of the mold (4) is provided with a placement groove (401) that fits the workpiece, and the guide groove (7) has the same shape as the placement groove (401).

4. A cold-rolled sheet edge-rolling device according to claim 3, characterized in that: The follower assembly (8) includes a fixed post (801) fixedly installed on the top of the movable seat (2), and the top of the fixed post (801) is provided with a ball bearing (802).

5. A cold-rolled sheet edge-rolling device according to claim 4, characterized in that: The cross-sectional shape of the placement groove (401) is arc-shaped, and the ball (802) fits into the placement groove (401).

6. The cold-rolled sheet edge-rolling device according to claim 1, characterized in that: The drive assembly (5) includes a rotating shaft (501) rotatably mounted on the top of the workbench (1). A first motor (502) is fixedly mounted on the side of the workbench (1) near the rotating shaft (501). A gear (503) is fixedly mounted on the output end of the first motor (502). A gear ring (504) is fixedly mounted on the outer surface of the rotating shaft (501). The gear (503) meshes with the gear ring (504).

7. A cold-rolled sheet edge-rolling device according to claim 6, characterized in that: The quick-release structure (6) includes a tray (601) fixedly mounted on the top of the rotating shaft (501). A connector (602) is fixedly provided at the center of the top of the tray (601). A connector groove (402) adapted to the connector (602) is provided at the center of the bottom of the mold (4). The mold (4) is fixedly mounted on the connector (602) by quick-release bolts (603).

8. A cold-rolled sheet edge-rolling device according to claim 7, characterized in that: The connector (602) has a hexagonal cross-section and a chamfer at the top edge. The mold (4) has a receiving groove (403) corresponding to the head of the quick-release bolt (603).

9. A cold-rolled sheet edge-rolling device according to claim 1, characterized in that: The rotating hemming mechanism (3) includes a rotating drive (301) fixedly installed on the top of the movable seat (2). A track component (302) is fixedly installed at the output end of the rotating drive (301). A sliding seat (303) is longitudinally slidably provided on the track component (302). A hemming component (304) is rotatably provided on the side of the sliding seat (303) away from the track component (302). A second motor (305) is fixedly installed at the top end of the track component (302). A lead screw (306) is fixedly installed at the output end of the second motor (305). A threaded hole adapted to the lead screw (306) is opened on the sliding seat (303) at the position corresponding to the lead screw (306).

Images