CN210847823U

CN210847823U - Automatic edge curling device

Info

Publication number: CN210847823U
Application number: CN201921076361.9U
Authority: CN
Inventors: 曹爱社; 金玲玲; 吴军雷; 王天龙; 严存波; 陈盼轲
Original assignee: Zhoushan Boda Machinery Manufacturing Co ltd
Current assignee: Zhoushan Boda Machinery Manufacturing Co ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-06-26
Anticipated expiration: 2029-07-10

Abstract

The utility model provides an automatic hemming device, includes, pushes down the mechanism, should push down the mechanism and include punching press portion, punching press portion installation guide part, guide part bottom installation guide ring, push down mechanism internally mounted rotary mechanism, installation bearing between rotary mechanism and the mechanism of pushing down, the rotary mechanism bottom connects gradually driven portion and stopper through the bolt, driven portion externally mounted hemming die, driven portion and hemming die between installation plane bearing and self-aligning bearing, plane bearing are located the self-aligning bearing top, the contact surface central line of plane bearing top and driven portion becomes contained angle α with the water flat line during operation, the mechanism of pushing down moves down, rotary mechanism is downward together when rotating, the jar body is along with the contact of hemming notch along the guide ring, the hemming die is under the effect of plane bearing and self-aligning bearing, the atress on keeping the circumference is even, accomplish the hemming smoothly.

Description

Automatic edge curling device

Technical Field

The invention relates to an automatic hemming device.

Background

In daily life, various metal can bodies are frequently used, curled edges are processed at openings of the metal can bodies to prevent scratches, the curled edges used at present are usually formed by pressing through an up-and-down linear motion type stamping die, the curled edges at seams of the can bodies can be formed only by needing larger force than other parts, the forming is difficult to be performed through the linear stamping mode, and the outer wall of a container is easy to deform due to the fact that the edges of the metal can bodies are simultaneously stressed.

Disclosure of Invention

Aiming at the defects existing in the problems, the invention provides an automatic curling device.

To achieve the above object, the present invention provides an automatic hemming device, comprising:

the pressing mechanism comprises a stamping part, the bottom of the stamping part is provided with a guide part through a bolt, and the bottom of the guide part is provided with a guide ring;

the rotating mechanism is arranged in the pressing mechanism, a bearing is arranged between the rotating mechanism and the pressing mechanism, the bottom of the rotating mechanism is sequentially connected with a driven part and a limiting block through bolts, and a hemming die is arranged outside the driven part;

the driven part with installation flat bearing and self-aligning bearing between the hemming die, flat bearing is located the self-aligning bearing top, the flat bearing top with the contact surface central line of driven part becomes contained angle α with the water flat line, the flat bearing bottom is put in the hemming die.

As a further improvement of the invention, the joint of the inner surface and the bottom surface of the guide ring is processed with a chamfer.

As a further improvement of the invention, the outer circumferential surface and the edge part of the top surface of the bearing are in contact with the inner wall of the punching part.

As a further improvement of the invention, a retainer ring I is arranged between the driven part and the rotating mechanism.

As a further improvement of the invention, the inner wall of the hemming die is processed with a groove, the right side surface of the hemming die is processed with a positioning groove, and the bottom of the hemming die is processed with a hemming notch.

As a further improvement of the invention, a positioning pin is arranged on the right side of the guide part, and the tail part of the positioning pin extends into the positioning groove.

As a further improvement of the invention, a retainer ring II and a hole clamp are arranged above the self-aligning bearing, the upper surface of the retainer ring II is contacted with the driven part, the hole clamp is clamped in the groove, and the bottom of the self-aligning bearing is contacted with the hemming die and the limiting block.

The invention has the beneficial effects that:

the device utilizes the stress difference of the high-level surface and the low-level surface through the combination of linear motion and rotary motion to ensure that the edge of the tank body always bears the pressure of rotation on the circumference, the hemming forming of the seam of the tank body is also ensured by continuous and repeated pressing, and the punctiform pressure can not cause the damage to the tank body structure, so that the device is suitable for the tank bodies made of different rigid materials, the stress on the periphery of the tank body is uniform, and the hemming effect is good.

Drawings

FIG. 1 is a cross-sectional view of an automatic hemming device of the present invention;

FIG. 2 is a detail view of the hemming die of part 13;

fig. 3 is an enlarged view of the position a in fig. 1.

In the figure: 1. a pressing mechanism; 11. a punching part; 12. a guide portion; 121. positioning pins; 2. a guide ring; 3. a rotation mechanism; 4. a bearing; 5. a check ring I; 6. a driven part; 7. a flat bearing; 8. a retainer ring II; 9. hole clamping; 10. a self-aligning bearing; 13. a hemming die; 131. a groove; 132. positioning a groove; 133. a crimping slot; 14. and a limiting block.

Detailed Description

As shown in FIG. 1, the automatic hemming device comprises a pressing mechanism 1, the pressing mechanism 1 comprises a punching portion 11, a guide portion 12 is installed at the bottom of the punching portion 11 through a bolt, a positioning pin 121 is installed on the right side of the guide portion 12, a guide ring 2 is installed at the bottom of the guide portion 12, a chamfer is machined at the joint of the inner surface of the guide ring 2 and the bottom surface, a rotating mechanism 3 is installed inside the pressing mechanism 1, a bearing 4 is installed between the rotating mechanism 3 and the pressing mechanism 1, the outer circumferential surface and the top surface edge portion of the bearing 4 are in contact with the inner wall of the punching portion 11, the bottom of the rotating mechanism 3 is sequentially connected with a driven portion 6 and a limiting block 14 through bolts, a retaining ring I5 is installed between the driven portion 6 and the rotating mechanism 3, a hemming die 13 is installed outside the driven portion 6, a groove 131 is machined in the inner wall of the hemming die 13, a positioning groove 132 is machined in the right side surface of the hemming die 13, the tail portion of the positioning pin 121 extends into the positioning groove 132, a hemming notch 133 is machined in the bottom of the hemming die 13, a plane bearing 7 and a bearing 10 are installed between the driven portion 6 and the hemming die 13, the centering die 7 and the retaining ring II are positioned above the centering bearing 7, the centering die 10, the centering die contact with a central line 358, the centering groove and the retaining ring 13, the.

In particular use, the invention will be described with reference to the accompanying drawings for the convenience of understanding;

when the tank body pressing device works, the tank body is fixed under the pressing mechanism, the tank body enters the hemming notch through the guide ring, the pressing mechanism drives the rotating mechanism to move downwards together, meanwhile, the rotating mechanism rotates, the driven part rotates along with the rotating mechanism, the hemming die does not rotate under the positioning action of the positioning pin, the driven part transmits pressure to the hemming die through the planar bearing, an included angle α is formed between the central line of the contact surface of the top of the planar bearing and the driven part and the horizontal line, the low-position stress surface provides larger pressure, along with the rotation of the rotating mechanism, the low-position stress surface rotates along with the circumferential direction, the hemming die moves downwards together with the rotating pressure on the circumference of the planar bearing, the pressure generated by the combined motion enables the tank body to be stressed into point pressure on the circumference in the hemming notch, meanwhile, under the action of the aligning bearing, the central line of the hemming die always keeps coincident with the central line of the rotating mechanism, the uniform stress of the tank body is guaranteed, the hemming edge is gradually formed, and as long as the tank body bears the point pressure on the circumference of the rotating action, the hemming can also can be.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic hemming device is characterized in that: the device comprises a pressing mechanism (1), wherein the pressing mechanism (1) comprises a stamping part (11), a guide part (12) is installed at the bottom of the stamping part (11) through a bolt, and a guide ring (2) is installed at the bottom of the guide part (12);

the rotary mechanism (3) is installed inside the pressing mechanism (1), a bearing (4) is installed between the rotary mechanism (3) and the pressing mechanism (1), the bottom of the rotary mechanism (3) is sequentially connected with a driven part (6) and a limiting block (14) through bolts, and a hemming die (13) is installed outside the driven part (6);

driven portion (6) with installation plain bearing (7) and self-aligning bearing (10) between hemming die (13), plain bearing (7) are located self-aligning bearing (10) top, plain bearing (7) top with the contact surface central line and the horizontal line of driven portion (6) become contained angle α, plain bearing (7) bottom is put in hemming die (13).

2. The automatic hemming device according to claim 1 wherein: and the inner hole of the guide ring (2) is chamfered.

3. The automatic hemming device according to claim 1 wherein: the outer circumferential surface and the top surface edge part of the bearing (4) are in contact with the inner wall of the stamping part (11).

4. The automatic hemming device according to claim 1 wherein: and a check ring I (5) is arranged between the driven part (6) and the rotating mechanism (3).

5. The automatic hemming device according to claim 1 wherein: the inner wall of the hemming die (13) is processed with a groove (131), the right side face of the hemming die (13) is processed with a positioning groove (132), and the bottom of the hemming die (13) is processed with a hemming notch (133).

6. An automatic hemming device according to claim 5 wherein: and a positioning pin (121) is arranged on the right side of the guide part (12), and the tail part of the positioning pin (121) extends into the positioning groove (132).

7. An automatic hemming device according to claim 5 wherein: retaining ring II (8) and hole card (9) are installed to self-aligning bearing (10) top, retaining ring II (8) upper surface with driven portion (6) contact, hole card (9) card is gone into recess (131), self-aligning bearing (10) bottom with hemming die (13) with stopper (14) contact.