CN110216181B

CN110216181B - Automatic hemming device

Info

Publication number: CN110216181B
Application number: CN201910621004.4A
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
Filing date: 2019-07-10
Publication date: 2024-06-07
Anticipated expiration: 2039-07-10

Abstract

The utility model provides an automatic hemming device, includes, should push down the mechanism and include punching press portion, punching press portion installation guiding portion, guiding portion bottom installation guiding ring, push down mechanism internally mounted rotary mechanism, installation bearing between rotary mechanism and the push down mechanism, rotary mechanism bottom connects gradually driven part and stopper through the bolt, driven part externally mounted hemming die, installation plane bearing and aligning bearing between driven part and the hemming die, plane bearing is located aligning bearing top, plane bearing top and driven part's contact surface central line become contained angle alpha with the horizontal line. When the automatic edge rolling machine works, the pressing mechanism moves downwards, the rotating mechanism rotates downwards together, the tank body is contacted with the edge rolling notch along the guide ring, and the edge rolling die keeps uniform stress on the circumference under the action of the plane bearing and the aligning bearing, so that edge rolling is smoothly completed. The device effectively improves the product technology and improves the product quality.

Description

Automatic hemming device

Technical Field

The invention relates to an automatic hemming device.

Background

Various metal can bodies are frequently used in daily life, the opening parts of the metal can bodies are all processed with hemming to prevent scratches, the hemming process used at present is usually formed by stamping and molding in an up-down linear motion mode, the hemming at the seam parts of the can bodies can be molded with larger force than other parts, the metal can bodies are difficult to be molded by pressing in a linear stamping mode, and the edges of the metal can bodies are easy to deform due to the fact that the edges of the metal can bodies are stressed simultaneously.

Disclosure of Invention

In view of the above-mentioned shortcomings, the present invention provides an automatic hemming device.

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

the pressing mechanism comprises a punching part, a guide part is arranged at the bottom of the punching part through a bolt, and a guide ring is arranged at the bottom of the guide part;

The rotating mechanism is arranged inside the pushing mechanism, a bearing is arranged between the rotating mechanism and the pushing 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 plane bearing and the aligning bearing are installed between the driven part and the edge rolling die, the plane bearing is located above the aligning bearing, an included angle alpha is formed between the center line of the contact surface of the top of the plane bearing and the driven part and the horizontal line, and the bottom of the plane bearing is placed in the edge rolling die.

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

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

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

As a further improvement of the invention, the inner wall of the edge rolling die is provided with a groove, the right side surface of the edge rolling die is provided with a positioning groove, and the bottom of the edge rolling die is provided with an edge rolling notch.

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

As a further improvement of the self-aligning device, a retainer ring II and a hole clamp are arranged above the self-aligning bearing, the upper surface of the retainer ring II is in contact with the driven part, kong Kaka is arranged in the groove, and the bottom of the self-aligning bearing is in contact with the edge rolling die and the limiting block.

The beneficial effects of the invention are as follows:

The device utilizes the atress difference of high level face and low level face through rectilinear movement and rotary motion's combination, guarantees that jar body edge bears the rotatory pressure on its circumference all the time, and the turn-up shaping of jar body seam crossing has also been guaranteed in continuous multiple pressing, and this punctiform pressure can not cause the destruction to jar body structure, is applicable to the jar body of different rigidity materials, makes jar body atress even all around, and the turn-up is effectual.

Drawings

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

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

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 part; 121. a positioning pin; 2. a guide ring; 3. a rotation mechanism; 4. a bearing; 5. a retainer ring I; 6. a driven part; 7. a planar bearing; 8. a retainer ring II; 9. a hole clamp; 10. aligning the bearing; 13. a hemming die; 131. a groove; 132. a positioning groove; 133. a hemming notch; 14. and a limiting block.

Detailed Description

As shown in fig. 1, the automatic hemming device of the invention comprises a pressing mechanism 1, wherein the pressing mechanism 1 comprises a punching part 11, a guide part 12 is arranged at the bottom of the punching part 11 through a bolt, a positioning pin 121 is arranged on the right side of the guide part 12, a guide ring 2 is arranged at the bottom of the guide part 12, and a chamfer is processed at the joint of the inner surface and the bottom surface of the guide ring 2; the internal installation rotary mechanism 3 of pushing down mechanism 1, install bearing 4 between rotary mechanism 3 and the pushing down mechanism 1, bearing 4 outer circumference and top surface marginal portion are with punching press portion 11 inner wall contact, rotary mechanism 3 bottom passes through the bolt and connects gradually driven portion 6 and stopper 14, install retaining ring I5 between driven portion 6 and the rotary mechanism 3, driven portion 6 externally mounted crimping die 13, crimping die 13 inner wall processing has recess 131, crimping die 13 right side face processing constant head tank 132, the locating pin 121 afterbody stretches into in constant head tank 132, crimping die 13 bottom processing crimping notch 133, install plane bearing 7 and aligning bearing 10 between driven portion 6 and the crimping die 11, plane bearing 7 is located aligning bearing 10 top, plane bearing 7 top and driven portion 6's contact surface central line and horizontal line become contained angle alpha, plane bearing 7 bottom is put in crimping die 13, aligning bearing 10 top installation retaining ring II 8 and hole clamp 9, II 8 upper surface and driven portion 6 contact, hole clamp 9 card goes into recess 131, aligning bearing 10 bottom and stopper 14 contact.

When in specific use, the invention is described with reference to the drawings for convenient understanding;

When the tank body is in operation, 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 together 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 plane bearing, the lower stress surface provides larger pressure because the center line of the contact surface of the top part of the plane bearing and the driven part forms an included angle alpha with the horizontal line, the lower stress surface rotates along the circumferential direction along with the rotation of the rotating mechanism, the hemming die rotates downwards together when the hemming die receives the rotating pressure on the circumference of the plane bearing, the pressure generated by the combined motion of the lower stress surface enables the tank body to be stressed to be the point pressure on the circumference, the center axis of the hemming die always coincides with the center axis of the rotating mechanism under the action of the aligning bearing at the same time, the hemming die is enabled to be stressed uniformly, the hemming of the edge of the tank body is gradually molded, and the tank body can be molded under the continuous action as long as the tank body bears the point pressure on the circumference.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. 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, characterized in that: the device comprises a pushing mechanism (1), wherein the pushing mechanism (1) comprises a punching part (11), a guide part (12) is arranged at the bottom of the punching part (11) through a bolt, and a guide ring (2) is arranged at the bottom of the guide part (12);

The rotary mechanism (3), the rotary mechanism (3) is installed inside the pushing mechanism (1), a bearing (4) is installed between the rotary mechanism (3) and the pushing 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);

A plane bearing (7) and a self-aligning bearing (10) are arranged between the driven part (6) and the edge rolling die (13), the plane bearing (7) is positioned above the self-aligning bearing (10), an included angle alpha is formed between the central line of the contact surface between the top of the plane bearing (7) and the driven part (6) and a horizontal line, and the bottom of the plane bearing (7) is placed in the edge rolling die (13);

The inner wall of the edge rolling die (13) is provided with a groove (131), the right side surface of the edge rolling die (13) is provided with a positioning groove (132), and the bottom of the edge rolling die (13) is provided with an edge rolling notch (133);

A locating pin (121) is arranged on the right side of the guide part (12), and the tail part of the locating pin (121) extends into the locating groove (132);

A retainer ring II (8) and a hole clamp (9) are arranged above the aligning bearing (10), the upper surface of the retainer ring II (8) is in contact with the driven part (6), the hole clamp (9) is clamped into the groove (131), and the bottom of the aligning bearing (10) is in contact with the edge rolling die (13) and the limiting block (14);

The utility model discloses a can, including rotary mechanism (3), rotary mechanism (3) are equipped with, push-down mechanism (1) drives rotary mechanism (3) are the downward movement together, rotary mechanism (3) are followed to follower (6) are rotated together, crimping die (13) are in under the positioning action of locating pin (121), follower (6) are passed through plane bearing (7) are given crimping die (13) with pressure transmission, because plane bearing (7) top with contact surface central line and the horizontal line of follower (6) become contained angle alpha, low-order stress surface provides great pressure, follows rotary mechanism (3) are rotated along with the rotation of lower-order stress surface, crimping die (13) are received while simultaneously downward movement together of rotary pressure on the circumference of plane bearing (7), the pressure that its combined motion produced makes the can body stress in crimping notch (133) be the point pressure of rotation on the circumference, simultaneously under the effect of aligning bearing (10), the central axis (13) all the time keeps the central axis with the rotary die (3) the edge of crimping die is even, has guaranteed that the shaping edge of can be coincided gradually.

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

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

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