CN215918932U - Automatic bend towards needle mould - Google Patents

Abstract

The utility model discloses an automatic bending punching needle die which comprises an upper die and a lower die, wherein the lower die comprises a lower die base plate and a first punching needle arranged on the upper side of the lower die base plate, and the lower die base plate is connected with a pneumatic power source and used for driving the first punching needle to jack up; the upper die comprises an upper die cutter mounting plate, and a second punching needle and a third punching needle which are fixed on the upper die cutter mounting plate; the device also comprises an entrance slideway, the entrance slideway is arranged between the upper die and the lower die, the first punching needle is arranged below the entrance slideway and can be driven by a pneumatic power source to move upwards, and the second punching needle and the third punching needle are arranged above the entrance slideway and can be driven by an upper die cutter mounting plate to move downwards; the upper end of the first punching needle is at an angle of 90 degrees, the lower end of the second punching needle is at an inclined plane of 60 degrees, and the lower end of the third punching needle is at an inclined plane of 45 degrees. The automatic bending and needle cutting device realizes automatic bending and needle cutting, realizes simultaneous needle cutting of the bending part in the bending and needle punching process, and improves the quality and the attractiveness of the bending and needle punching process.

Description

Automatic bend towards needle mould

Technical Field

The utility model relates to the technical field of stamping dies, in particular to an automatic bending stamping pin die.

Background

At present, when the needle is used for bending and cutting the needle, the problems that the needle is damaged and burrs seriously affect the use in the process of bending and cutting the needle due to unsmooth unilateral pressure output of a die structure often occur, so that the bent and punched needle has high rejection rate and poor stability.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the automatic bending and punching needle die, which realizes automatic bending and cutting of the needle, realizes simultaneous needle cutting of the bent part in the bending and punching needle process, and improves the quality and the attractiveness of the bending and punching needle.

In order to achieve the technical purpose, the utility model adopts the following technical scheme: an automatic bending punching needle die comprises an upper die and a lower die, wherein the lower die comprises a lower die base plate and a first punching needle arranged on the upper side of the lower die base plate, and the lower die base plate is connected with a pneumatic power source and used for driving the first punching needle to jack up; the upper die comprises an upper die cutter mounting plate, and a second punching needle and a third punching needle which are fixed on the upper die cutter mounting plate;

the second punching needle and the third punching needle are both arranged above the entrance slideway and can be driven by the upper die cutter mounting plate to move downwards;

the upper end part of the first punching needle is at an angle of 90 degrees, the lower end part of the second punching needle is at an inclined plane of 60 degrees, and the lower end part of the third punching needle is at an inclined plane of 45 degrees.

Further, the first punching needle comprises a first body and a needle body fixed at the upper end of the first body, and the upper end of the needle body is a 90-degree right-angle surface; a first fixing block is fixed at the lower end of the first body.

Further, the second punching needle comprises a second body, a second fixed block is fixed at the upper end of the second body, and the second fixed block is fixed on the upper die cutter mounting plate; the lower end face of the second body is a wedge-shaped block with a 60-degree inclined surface.

Further, the third punch pin comprises a third body, a third fixed block is fixed at the upper end of the third body, and the third fixed block is fixed on the upper die cutter mounting plate; the lower end of the third body is a wedge-shaped block with a 45-degree inclined surface.

The lower die further comprises a lower die bottom plate and a lower die main plate, the lower die base plate is fixed between the lower die bottom plate and the lower die main plate, and the entrance slideway is fixed on the upper side surface of the lower die main plate and used for conveying products into the die; the first punching needle penetrates through the lower die main board and then is arranged on the lower side face of the entrance slideway, a first punching hole is formed in a first station of the entrance slideway, and the first punching needle penetrates through a punching product bent behind the first punching hole.

The upper die further comprises an upper die positioning needle mounting plate, an upper die positioning needle backing plate, an upper die cutter backing plate, a press-fit top plate and a pressure rod which are sequentially arranged; the upper die cutter mounting plate is arranged between the upper die positioning needle base plate and the upper die cutter base plate.

Furthermore, a first positioning pin is installed on the upper die positioning pin installation plate.

In conclusion, the utility model achieves the following technical effects:

1. the automatic bending punching needle is realized through the structural design, so that the needle cutting at the bending part is realized simultaneously in the process of bending the punching needle mould, and the quality and the attractiveness of the bending punching needle are improved;

2. according to the utility model, three bends of 90 degrees, 60 degrees and 45 degrees are placed in the same die, and the three bends are completed by twice die assembly, so that the operation is convenient, and the process is saved;

3. the punched needle is stable, uniform in punching and free of burrs

Drawings

Fig. 1 is a schematic perspective view of an automatic bending punch pin die according to an embodiment of the present invention;

FIG. 2 is a side view of an automatic bending punch pin mold according to an embodiment of the present invention;

FIG. 3 is a top view of an upper die provided by an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of FIG. 3;

FIG. 5 is a schematic illustration of the positions of three punch pins;

FIG. 6 is a schematic view of a first punch pin;

FIG. 7 is a schematic view of a second punch pin;

FIG. 8 is a schematic view of a third punch pin;

FIG. 9 is a side view of an upper die provided by an embodiment of the present invention;

fig. 10 is a schematic cross-sectional view of fig. 9.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example (b):

as shown in fig. 1 and 2, an automatic bending needle punching die comprises an upper die, a lower die and an entry slideway 4, wherein the lower die comprises a lower die base plate 2, a lower die bottom plate 1 and a lower die main plate 3, the lower die base plate 2 is fixed between the lower die bottom plate 1 and the lower die main plate 3, and the entry slideway 4 is fixed on the upper side surface of the lower die main plate 3 and is used for conveying products (needles) into the die; the upper die comprises an upper die positioning needle mounting plate 5, an upper die positioning needle backing plate 6, an upper die cutter mounting plate 7, an upper die cutter backing plate 8, a pressing top plate 9 and a pressing rod 10 which are arranged in sequence. When the die is closed, the upper die positioning needle mounting plate 5 presses the entrance slideway 4 to bend and stamp in the die cavity.

Fig. 3 is a plan view of the upper die, fig. 4 is a schematic sectional view of the upper die, in which a second punch pin 12 and a third punch pin 13 are mounted on the upper die cutter mounting plate 7; it can be seen that the mold is operated in two directions, that is, two stations are operated simultaneously, so that the number of the second punching pins 12 and the number of the third punching pins 13 are 2 and are arranged in the conveying direction of the product, the second punching pins 12 are located at the rear position in the conveying direction, and the third punching pins are located at the front position in the conveying direction.

As shown in fig. 5, the position of the second punch pin 12 and the third punch pin 13 is schematically shown, and the position of the first punch pin 11 can also be seen, in this embodiment, the lower die cushion plate 2 is provided with the first punch pin 11, and the lower die cushion plate 2 is connected with a pneumatic power source for driving the first punch pin 11 to push up; meanwhile, the entrance slideway 4 is arranged between the upper die and the lower die, the first punching needle 11 is arranged below the entrance slideway 4 and can be driven by a pneumatic power source to move upwards, and when the first punching needle moves upwards, the upper end of the first punching needle 11 pushes up a product to form a bending shape on the product after pushing up for a certain distance. Of course, the second punching needle 12 and the third punching needle 13 are both arranged above the entrance slideway 4 and can be driven by the upper die cutter mounting plate 7 to move downwards, and after the first punching needle is punched and bent, the second punching needle 12 and the third punching needle 13 are bent and punched.

Fig. 5 shows only the upper die positioning pin backing plate 6, the second punch pin 12 and the third punch pin 13, the lower die main plate 3, the first punch pin 11 and the entrance chute 4, and the shapes of the three punch pins can be seen in the figure.

As shown in fig. 6, the first punch pin 11 includes a first body 1111 and a pin body 112 fixed at the upper end of the first body 111, and the upper end of the pin body 112 is a right-angle surface of 90 °; a first fixing block 114 is fixed to a lower end of the first body 111. The first fixing block 114 is connected to a pneumatic power source (not shown), and after the die is closed, the air source drives the whole first punch pin 11 to move upwards when working, so that a 90-degree right-angle surface at the upper end is punched towards the product to form a right-angle bend.

As shown in fig. 7, the second punch pin 12 includes a second body 121, a second fixing block 122 is fixed to an upper end of the second body 121, and the second fixing block 122 is fixed to the upper die cutter mounting plate 7 (shown in fig. 4); the lower end surface of the second body 121 is a 60 ° inclined wedge, and after the mold is closed, the 60 ° inclined wedge at the lower end is punched toward the product to form a 60 ° bent shape.

As shown in fig. 8, the third punch pin 13 includes a third body 131, a third fixing block 132 is fixed to an upper end of the third body 131, and the third fixing block 132 is fixed to the upper die cutter mounting plate 7 (shown in fig. 4); the lower end of the third body 131 is a wedge-shaped block with a 45-degree inclined surface, and after the mold is closed, the wedge-shaped block with the 45-degree inclined surface at the lower end is punched towards a product to form a 45-degree bent shape.

In the whole pressing process, as shown in fig. 5, the die is closed and then 90 ° is pressed, then the die is opened and one end is fed forward, then the die is closed and the 60 ° and 45 ° are pressed, and the 60 ° and 45 ° are simultaneously pressed, and then the material is cut by the cutter and taken out (the cutter is not shown).

In addition, in order to match the operation of the whole die, in the lower die structure, as shown in fig. 1, a first punching needle 11 (the first punching needle 11 in fig. 1 is blocked inside) penetrates through the lower die main plate 3 and is then placed on the lower side surface of the entrance slideway 4, a first punching hole is formed at a first station of the entrance slideway 4, and after the air source is started, the first punching needle 11 penetrates through the first punching hole and then bends the punched product. Of course, the lower die base plate 2 and the lower die base plate 1 have a space for accommodating a pneumatic power source (not shown), and the details are not described herein. And the upper die positioning pin mounting plate 5 is used as a lowest panel of the upper die, is provided with a slotted hole 51 and is used for reserving a certain bending space for the product when the first punching pin 11 pushes the product upwards.

In the upper die structure, as shown in fig. 9 and 10, a first positioning pin 14 is installed on the upper die positioning pin installation plate 5, a second positioning pin 15 is also installed on the upper die cutter installation plate 7 and used for positioning a product material, a positioning hole is formed in the product, and when the die is closed, the positioning pins are firstly positioned and then are closed immediately, so that the accuracy of a punching position is ensured. In addition, the upper die positioning needle mounting plate 5, the upper die positioning needle backing plate 6 and the upper die cutter mounting plate 7 are all provided with through holes for the second punching needle 12 and the third punching needle 13 to pass through, and the second station and the third station of the entrance slideway 4 respectively correspond to the second punching needle 12 and the third punching needle 13. And, a stamping groove (not shown) is formed on the lower die main plate 3, and is used for reserving a certain bending space for the product when the second stamping pin 12 and the third stamping pin 13 are pushed down.

Further, the entire die is provided with a cushion spring or the like for cushioning at the time of pressing.

The working principle is as follows:

as shown in fig. 1, products are conveyed into the entrance slideway 4 from two side faces of the die (the entrance slideway 4 is arranged on both sides), the whole structure of the upper die is downwards matched after the products are in place, the matching operation is completed after the products are positioned by two positioning pins, the first punching pin 11 is driven to upwards move by the work of a pneumatic power source, the products are punched by the right-angle face of the first punching pin 11, and 90-degree angle punching is completed;

opening the mold, and conveying the product for a certain distance;

closing the die, and pushing the product downwards by the second punching pin 12 and the third punching pin 13 to complete 60-degree and 45-degree punching;

opening the die, and conveying the product forward for a certain distance to enable the next product to reach a first station;

closing the die, enabling the cutter to fall down to cut off the punched product, and punching the next product at 90 degrees;

and circulating the steps.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.

Claims (7)

1. The utility model provides an automatic bend towards needle mould, includes mould and lower mould, its characterized in that: the lower die comprises a lower die base plate (2) and a first punching needle (11) arranged on the upper side of the lower die base plate (2), and the lower die base plate (2) is connected with a pneumatic power source for driving the first punching needle (11) to jack up; the upper die comprises an upper die cutter mounting plate (7), and a second punching needle (12) and a third punching needle (13) which are fixed on the upper die cutter mounting plate (7);

the device is characterized by further comprising an entrance slideway (4), wherein the entrance slideway (4) is arranged between the upper die and the lower die, the first punching needle (11) is arranged below the entrance slideway (4) and can be driven by the pneumatic power source to move upwards, and the second punching needle (12) and the third punching needle (13) are arranged above the entrance slideway (4) and can be driven by the upper die cutter mounting plate (7) to move downwards;

the upper end of the first punching needle (11) is at an angle of 90 degrees, the lower end of the second punching needle (12) is at an inclined plane of 60 degrees, and the lower end of the third punching needle (13) is at an inclined plane of 45 degrees.

2. The automatic bending punch pin die according to claim 1, characterized in that: the first punch needle (11) comprises a first body (111) and a needle body (112) fixed at the upper end of the first body (111), and the upper end of the needle body (112) is a right-angle surface with an angle of 90 degrees; a first fixing block (114) is fixed at the lower end of the first body (111).

3. The automatic bending punch pin die according to claim 2, characterized in that: the second punching needle (12) comprises a second body (121), a second fixed block (122) is fixed at the upper end of the second body (121), and the second fixed block (122) is fixed on the upper die cutter mounting plate (7); the lower end face of the second body (121) is a wedge-shaped block with a 60-degree inclined surface.

4. The automatic bending punch pin die according to claim 3, characterized in that: the third punching needle (13) comprises a third body (131), a third fixed block (132) is fixed at the upper end of the third body (131), and the third fixed block (132) is fixed on the upper die cutter mounting plate (7); the lower end of the third body (131) is a wedge-shaped block with a 45-degree inclined surface.

5. The automatic bending punch pin die according to claim 4, characterized in that: the lower die also comprises a lower die bottom plate (1) and a lower die main plate (3), the lower die base plate (2) is fixed between the lower die bottom plate (1) and the lower die main plate (3), and the entrance slideway (4) is fixed on the upper side surface of the lower die main plate (3) and used for conveying products into the die; first towards needle (11) pass arrange in behind lower mould mainboard (3) the downside of slide (4) of starting, first punching press hole has been seted up in the first station department of slide (4) of starting, first towards needle (11) pass bend punching press product behind the first punching press hole.

6. The automatic bending punch pin die according to claim 5, characterized in that: the upper die also comprises an upper die positioning needle mounting plate (5), an upper die positioning needle backing plate (6), an upper die cutter backing plate (8), a pressing top plate (9) and a pressing rod (10) which are arranged in sequence; the upper die cutter mounting plate (7) is arranged between the upper die positioning needle base plate (6) and the upper die cutter base plate (8).

7. The automatic bending punch pin die according to claim 6, characterized in that: and a first positioning needle (14) is arranged on the upper die positioning needle mounting plate (5).

Images