CN220781954U

CN220781954U - Transverse cutting mechanism of fin die

Info

Publication number: CN220781954U
Application number: CN202321644765.XU
Authority: CN
Inventors: 张会军; 施展
Original assignee: Wuxi Hi Tech Precision Mold Co ltd
Current assignee: Wuxi Hi Tech Precision Mold Co ltd
Priority date: 2023-06-26
Filing date: 2023-06-26
Publication date: 2024-04-16
Anticipated expiration: 2033-06-26

Abstract

The utility model relates to the field of fin dies, in particular to a fin die transverse cutting mechanism which comprises a transverse cutting sub-die and a portal frame, wherein the portal frame comprises support plates positioned at two ends of the transverse cutting sub-die and a connecting plate positioned above the transverse cutting sub-die, a rotary shaft is arranged between the two support plates, pressure arms radially extend out of the rotary shaft, a plurality of pressure arms are arranged at intervals along the axial direction of the rotary shaft, the pressure arms are provided with transmission components for driving the transverse cutting sub-die to complete cutting action, one support plate is provided with a speed reducing motor, an output shaft of the speed reducing motor is connected with an eccentric block, the eccentric block is provided with a shaft lever which is not on the same axis with the output shaft of the speed reducing motor, and the shaft lever is connected with any pressure arm through a linkage block, so that the rotary shaft lever rotates in a periodical forward and reverse direction. The transverse cutting mechanism has high precision and stable action, so that the transverse cutting action speed is high, and the requirement of high-speed production can be met.

Description

Transverse cutting mechanism of fin die

Technical Field

The utility model relates to the field of fin dies, in particular to a fin die transverse cutting mechanism.

Background

The transverse cutting is an important process in fin forming, and according to the requirement of the number of holes of a product, the transverse cutting upper knife acts downwards to realize the cutting of different hole numbers, so that the production requirements of fins with different lengths are met.

The existing transverse cutting sub-die mainly comprises a transverse cutting upper cutter, a transverse cutting lower cutter, a transverse cutting cylinder, a transverse cutting sliding plate, a transverse cutting shaft, a transverse cutting striking block, a transverse cutting striking rod, a transverse cutting upper cutter holder, a transverse cutting lower cutter holder, a transverse cutting side pressing block, a transverse cutting reset spring, transverse cutting limiting blocks and the like, wherein reset springs are arranged on two sides below the transverse cutting sliding plate, limiting columns are arranged on the left side and the right side of the transverse cutting sliding plate, the transverse cutting upper cutter is fixed on the sliding plate, and the transverse cutting lower cutter is fixed on the lower cutter holder. The working principle of the cutting-off is as follows: the air circuit connector of the punching machine is arranged on the transverse cutting cylinder, one air pipe connector is arranged on each side, the transverse cutting striking block is arranged on the transverse cutting shaft, one end of the air cylinder is provided with air pressure, the transverse cutting shaft can move left and right, the striking block is pushed to one side, the same position as the transverse cutting striking rod is achieved, and when the punching machine slide block moves to the bottom dead center, the transverse cutting sliding plate can move downwards under the action of the transverse cutting striking rod, and the cutting-off action of the upper cutter and the lower cutter is achieved. When the punch slide block moves upwards, air pressure is supplied to the cylinder on the other side of the transverse cutting, the striking block is pushed to the other side of the transverse cutting, the positions of the striking block and the transverse cutting striking rod are staggered, and the transverse cutting sliding plate can rebound under the action of the reset spring, so that the transverse cutting is not cut off. According to the length of the fin, the punch press can give air pressure to realize the left and right actions of the striking block, and the transverse cutting striking block is reset immediately after cutting, and is in a non-cutting state.

The above transverse cutting structure cannot meet higher production requirements, and mainly has the following defects:

1) The transverse cutting action is mainly carried out through air pressure transmission, the transverse cutting beating rod presses the transverse cutting beating block to drive the transverse cutting sliding plate to move downwards, and when the air pressure is unstable, the beating block and the shaft do not move back and forth in time and cannot be accurately in place;

2) The transverse cutting sliding plate is reset upwards through the reset spring, the speed of punching is increased once the speed of feeding the fins is increased, the transverse cutting sliding plate is reset timely, if not, the fins are interfered with the transverse cutting upper knife, the moving speed of the transverse cutting striking block is not consistent with the punching speed of the punch press, and the action of the reset spring cannot meet the requirement of high-speed production;

3) The transverse cutting mechanism is wholly arranged on the upper template, the transverse cutting beating rod presses the beating block, when the transverse cutting sliding plate moves downwards to realize cutting, the transverse cutting blanking force and the reset spring force can be transferred to the upper template, so that unbalance and pressure unbalanced load of the die are caused, and the phenomenon that longitudinal cutting is not opened and burrs are generated is caused.

Disclosure of Invention

Based on the problems, the utility model aims to provide a fin die transverse cutting mechanism which meets the transverse cutting requirements of high precision, high punching speed and high flexibility.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a fin mould transverse cutting mechanism, it includes transverse cutting submodule and portal frame, the portal frame is including the backup pad that is located the both ends of transverse cutting submodule and the connecting plate that is located the top of transverse cutting submodule, be provided with the revolving axle between two backup pads, radially stretch out along it on the revolving axle has the pressure arm, a plurality of pressure arm is arranged along the axial interval of revolving axle, and be provided with the drive assembly that the drive transverse cutting submodule accomplished the cutting action on the pressure arm, be provided with gear motor in one of them backup pad, be connected with the eccentric block on gear motor's the output shaft, be provided with the axostylus axostyle on the same axis with gear motor's output shaft on the eccentric block, be connected through the linkage piece between axostylus axostyle and the arbitrary pressure arm, make the revolving axle make periodic forward and backward rotation through axostylus axostyle eccentric rotation.

Optionally, the eccentric block is cross-shaped, the position of the shaft lever deviates from the geometric center of the cross shape, a first bearing is arranged between the shaft lever and the linkage block, and a stop nut for limiting the first bearing is arranged at the end part of the shaft lever.

Optionally, a motor connecting block is arranged on an output shaft of the gear motor, a cross limiting groove is formed in the end face of the motor connecting block, and the eccentric block is embedded in the cross limiting groove.

Optionally, an induction block for monitoring the position of the linkage block or the pressure arm is arranged on the support plate.

Optionally, a reinforcing rib plate is arranged on the lower surface of the connecting plate, a limiting block extending to the rotating shaft is arranged on the reinforcing rib plate, and an arc surface touching the surface of the rotating shaft is arranged on the limiting block.

Optionally, a cushion block is arranged between the reinforcing rib plate and the limiting block, and the cushion block is used for correcting the curvature of the rotating shaft.

Optionally, the transmission assembly comprises a pressurizing block and a transition plate, wherein the pressurizing block is fixedly connected with the upper cutter sliding plate of the transverse cutting sub-die, and two ends of the transition plate are correspondingly connected with the pressurizing block and the pressure arm through pin shafts.

Optionally, a second bearing is arranged between the rotary shaft and the supporting plate, a check ring for limiting the second bearing is arranged at the end part of the rotary shaft, and a lock nut for limiting the check ring is arranged on the rotary shaft.

Optionally, the cross cutting sub-die and the portal frame are respectively mounted on the fin progressive die so as to be integrated into the fin progressive die.

Optionally, the transverse cutting sub-die and the portal frame are used as independent modules and are arranged outside the fin progressive die.

In summary, the fin die transverse cutting mechanism has the advantages that compared with the prior art, the fin die transverse cutting mechanism has the following advantages:

1) The precision is high, the action is stable, the vertical movement speed of the upper cutter sliding plate and the transverse cutting upper cutter is high, and the high-speed working requirement can be met;

2) The upper cutter sliding plate is driven to vertically move up and down by forward and reverse rotation of the rotary shaft, a reset spring is not needed to be relied on, the influence of lateral force is avoided, the blanking gap of the transverse upper cutter and the transverse lower cutter is uniform, and the problem of gap running is avoided;

3) The portal frame is adopted to enable the driving part and the die to be designed separately, so that the transverse cutting mechanism can be integrated in the fin continuous die, and can also be used as an independent module to independently carry out the transverse cutting process, thereby reducing the influence on the die, being more flexible to use and being convenient for adjusting the transverse cutting position;

4) The transverse cutting rod is omitted, the rotary shaft synchronously drives the pressure arms to press the upper cutter sliding plate, so that the uniform stress of the transverse cutting upper cutter is ensured, the problems of unbalanced loading of the die, burrs, non-cutting and the like are avoided, and the stability and the precision are higher during high-speed work.

Drawings

FIG. 1 is a schematic diagram of a fin die cross cutting mechanism provided by an embodiment of the utility model;

FIG. 2 is a front view of a fin die cross cutting mechanism provided by an embodiment of the present utility model;

FIG. 3 is a side view of a fin die cross cutting mechanism provided by an embodiment of the present utility model;

FIG. 4 is an enlarged view at A in FIG. 2;

fig. 5 is a schematic diagram illustrating the separation of the eccentric block and the motor connecting block in the fin die transverse cutting mechanism according to the embodiment of the utility model.

In the figure:

1. a transverse cutting sub-die; 2. a portal frame; 3. a support plate; 4. a connecting plate; 5. a rotating shaft; 6. a pressure arm; 7. a speed reducing motor; 8. an eccentric block; 9. a shaft lever; 10. a linkage block; 11. a first bearing; 12. a stop nut; 13. a motor connecting block; 14. a cross limiting groove; 15. an induction block; 16. reinforcing rib plates; 17. a limiting block; 18. a cushion block; 19. pressurizing the block; 20. a transition plate; 21. a pin shaft; 22. a second bearing; 23. a retainer ring; 24. and (5) locking the nut.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar parts throughout, or parts having like or similar functions. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, mechanically connected, electrically connected, indirectly connected through an intermediary, or may be in communication with each other between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, unless explicitly stated and limited otherwise, a first feature "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact by another feature therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature. The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

Referring to fig. 1 to 5, the present preferred embodiment provides a fin mold cross cutting mechanism, which comprises a cross cutting sub-die 1 and a portal frame 2, wherein the portal frame 2 comprises support plates 3 positioned at two ends of the cross cutting sub-die 1 and a connecting plate 4 positioned above the cross cutting sub-die 1, a rotating shaft 5 is arranged between the two support plates 3, a pressure arm 6 radially extends out of the rotating shaft 5, a plurality of pressure arms 6 are arranged at intervals along the axial direction of the rotating shaft 5, and a transmission assembly for driving the cross cutting sub-die 1 to complete cutting action is arranged on the pressure arm 6.

Particularly, one of the support plates 3 is provided with a gear motor 7, an output shaft of the gear motor 7 is connected with an eccentric block 8, the eccentric block 8 is provided with a shaft lever 9 which is not on the same axis with the output shaft of the gear motor 7, the shaft lever 9 is connected with any one of the pressure arms 6 through a linkage block 10, and the rotary shaft 5 is periodically rotated forward and backward through eccentric rotation of the shaft lever 9.

The eccentric block 8 is in a cross shape, the position of the shaft lever 9 deviates from the geometric center of the cross shape, a first bearing 11 is arranged between the shaft lever 9 and the linkage block 10, and a stop nut 12 for limiting the first bearing 11 is arranged at the end part of the shaft lever 9, so that the eccentric block 8 is reliably installed.

Particularly, a motor connecting block 13 is arranged on an output shaft of the gear motor 7, a cross limiting groove 14 is formed in the end face of the motor connecting block 13, and the eccentric block 8 is embedded in the cross limiting groove 14, so that the eccentric block 8 is prevented from shifting in the driving process, and the rotating angle of the rotating shaft 5 is prevented from being influenced.

Further, the supporting plate 3 is provided with a sensing block 15 for monitoring the position of the linkage block 10 or the pressure arm 6, so that the position deviation of the action part can be found in time, and the damage to the die and the product can be avoided.

Optionally, a reinforcing rib plate 16 is arranged on the lower surface of the connecting plate 4, a limiting block 17 extending to the rotating shaft 5 is arranged on the reinforcing rib plate 16, and an arc surface touching the surface of the rotating shaft 5 is arranged on the limiting block 17.

In particular, a cushion block 18 is arranged between the reinforcing rib plate 16 and the limiting block 17, and the cushion block 18 is used for correcting the bending degree of the rotating shaft 5 and avoiding excessive or continuous transverse cutting caused by the bending of the rotating shaft 5.

The transmission assembly comprises a pressing block 19 and a transition plate 20, wherein the pressing block 19 is fixedly connected with an upper cutter sliding plate of the transverse cutting sub-die 1, and two ends of the transition plate 20 are correspondingly connected with the pressing block 19 and the pressure arm 6 through a pin shaft 21, so that the swinging motion of the pressure arm 6 is converted into lifting motion of the pressing block 19.

In particular, a second bearing 22 is arranged between the rotary shaft 5 and the supporting plate 3, a check ring 23 for limiting the second bearing 22 is arranged at the end part of the rotary shaft 5, and a lock nut 24 for limiting the check ring 23 is arranged on the rotary shaft 5, so that the rotary shaft 5 can accurately act.

Therefore, the gear motor 7 rotates to drive the shaft lever 9 of the eccentric block 8 to eccentrically rotate, so that the rotary shaft 5 periodically rotates forward and backward, and further the pressurizing block 19 and the upper cutter sliding plate are driven to move up and down, so that the transverse cutting upper cutter acts and cooperates with the transverse cutting lower cutter to complete transverse cutting.

In addition, the transverse cutting sub-die 1 and the portal frame 2 are respectively arranged on the fin continuous die so as to be integrated in the fin continuous die; or the transverse cutting sub-die 1 and the portal frame 2 are used as independent modules and are arranged outside the fin progressive die, so that the use requirements of more occasions are met.

In conclusion, the fin die transverse cutting mechanism has high precision and stable action, and the vertical movement speed of the upper cutter sliding plate and the transverse cutting upper cutter is high, so that the high-speed working requirement can be met; the upper cutter sliding plate is driven to vertically move up and down by forward and reverse rotation of the rotary shaft 5, a reset spring is not needed to be relied on, the lateral force is not influenced, the transverse cutting of the upper cutter and the lower cutter has uniform punching gap, and the problem of running gap is avoided; the portal frame 2 is adopted to enable the driving part and the die to be designed separately, so that the transverse cutting mechanism can be integrated in the fin progressive die, and can also be used as an independent module to independently carry out the transverse cutting process, thereby reducing the influence on the die, being more flexible to use and being convenient for adjusting the transverse cutting position; the transverse cutting and beating rod is canceled, the rotary shaft 5 synchronously drives the pressure arms 6 to press the upper cutter sliding plate, so that the uniform stress of the transverse cutting upper cutter is ensured, the problems of unbalanced loading of the die, burrs, non-cutting and the like are avoided, and the stability and the precision are higher during high-speed operation.

The above embodiments merely illustrate the basic principles and features of the present utility model, and the present utility model is not limited to the above embodiments, but can be variously changed and modified without departing from the spirit and scope of the present utility model, which is within the scope of the present utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fin mould crosscut mechanism, its characterized in that, includes crosscut submodule (1) and portal frame (2), portal frame (2) are including being located backup pad (3) at the both ends of crosscut submodule (1) and being located connecting plate (4) of the top of crosscut submodule (1), two be provided with swivel (5) between backup pad (3), it has pressure arm (6) to stretch out along its radial on swivel (5), a plurality of pressure arm (6) follow the axial interval of swivel (5), just be provided with the drive on pressure arm (6) the transmission subassembly that the cutting action was accomplished to crosscut submodule (1), one of them be provided with gear motor (7) on backup pad (3), be connected with eccentric block (8) on the output shaft of gear motor (7), be provided with on the same axis with the output shaft (9) of gear motor (7) do not have on swivel (9), be connected through linkage piece (10) between swivel (9) and any pressure arm (6) make positive and negative rotation through swivel (5).

2. The fin die transection mechanism of claim 1, wherein: the eccentric block (8) is in a cross shape, the position of the shaft lever (9) deviates from the geometric center of the cross shape, a first bearing (11) is arranged between the shaft lever (9) and the linkage block (10), and a stop nut (12) limiting the first bearing (11) is arranged at the end part of the shaft lever (9).

3. The fin die transection mechanism of claim 2, wherein: the motor connecting block (13) is arranged on the output shaft of the gear motor (7), a cross limiting groove (14) is formed in the end face of the motor connecting block (13), and the eccentric block (8) is embedded in the cross limiting groove (14).

4. The fin die transection mechanism of claim 1, wherein: the support plate (3) is provided with an induction block (15) for monitoring the position of the linkage block (10) or the pressure arm (6).

5. The fin die transection mechanism of claim 1, wherein: the lower surface of connecting plate (4) is provided with deep floor (16), be provided with on deep floor (16) and stretch to stopper (17) of revolving axle (5), be provided with on stopper (17) with the cambered surface of the surperficial touching of revolving axle (5).

6. The fin die transection mechanism of claim 5, wherein: a cushion block (18) is arranged between the reinforcing rib plate (16) and the limiting block (17), and the cushion block (18) is used for correcting the curvature of the rotating shaft (5).

7. The fin die transection mechanism of claim 1, wherein: the transmission assembly comprises a pressing block (19) and a transition plate (20), wherein the pressing block (19) is fixedly connected with an upper cutter sliding plate of the transverse cutting sub-die (1), and two ends of the transition plate (20) are correspondingly connected with the pressing block (19) and the pressure arm (6) through a pin shaft (21).

8. The fin die transection mechanism of claim 1, wherein: a second bearing (22) is arranged between the rotary shaft (5) and the supporting plate (3), a check ring (23) limiting the second bearing (22) is arranged at the end part of the rotary shaft (5), and a lock nut (24) limiting the check ring (23) is arranged on the rotary shaft (5).

9. The fin die transection mechanism of claim 1, wherein: the transverse cutting sub-die (1) and the portal frame (2) are respectively arranged on the fin continuous die so as to be integrated in the fin continuous die.

10. The fin die transection mechanism of claim 1, wherein: the transverse cutting sub-die (1) and the portal frame (2) are used as independent modules and are arranged outside the fin continuous die.