CN204365847U - A kind of bending structure - Google Patents

Abstract

A bending structure, including an upper mold assembly and a lower mold assembly, the structure of the upper mold assembly is: including an upper mold base, the lower part of the upper mold base is installed with a punch fixing plate through a punch backing plate, and the punch fixing plate is The punch is fixed, and the ejector rod is fixed on the upper die seat through fasteners, and the ejector rod passes through the backing plate of the punch die to abut against the top of the punch; the structure of the lower die assembly is as follows: including the lower die seat, and The die fixing plate is installed through the die backing plate. There is a discharge plate on the upper part of the die fixing plate. The die is installed on the die fixing plate. There is a first arc groove on one side of the die. A slider is installed on the mold fixing plate, and a second arc groove is opened on one side of the slider. A lever is installed horizontally between the slider and the die, and the two ends of the lever are respectively connected with the first arc groove and the second The circular arc groove is matched; the punching rod is installed on the fixed plate of the punch through the fastener, and the driving rod passes through the discharge plate and abuts against the slider. There is no need to lift the material, which maximizes the smooth feeding of the product and high processing accuracy.

Description

a bending structure

technical field

The utility model relates to the technical field of mold devices, in particular to a bending structure.

Background technique

At present, molds are usually used for bending products, and most of the products in the market require higher and higher precision, especially in bending. The bending forming process is generally fixed die, punch And the structure that the lifting block moves downward, it is easy to cause the material belt to be unstable or deformed during the lifting, and the surface of the product will be left with scars during bending, which will affect the pass rate of the product.

Utility model content

The applicant aims at the above-mentioned shortcomings in the existing production technology, and provides a bending structure, so as to facilitate bending and protect the strip.

The technical scheme adopted in the utility model is as follows:

A bending structure, comprising an upper mold assembly and a lower mold assembly, the structure of the upper mold assembly is: comprising an upper mold base, the lower part of the upper mold base is installed with a punch fixing plate through a punch backing plate, the A punch is fixed on the punch fixing plate, and a push rod is fixed on the upper die base through fasteners, and the push rod passes through the punch backing plate and abuts against the top of the punch; the lower die assembly The structure is as follows: a lower mold base is included, a die fixing plate is installed on the lower die base through a die backing plate, a discharge plate is arranged on the upper part of the die fixing plate, a die is installed on the die fixing plate, the There is a first arc groove on one side of the die, a slider is installed on the die fixing plate at one end of the die, a second arc groove is formed on one side of the slider, and the slider and A lever is horizontally installed between the dies, and the two ends of the lever are matched with the first arc groove and the second arc groove respectively; The hitting rod passes through the unloading plate and abuts against the slide block.

Its further technical scheme is:

A relief groove is opened on the discharge plate.

The beneficial effects of the utility model are as follows:

The utility model has a compact and reasonable structure. When in use, it does not need to lift the material. It can ensure the smooth feeding of the product to the greatest extent, and can drive at high speed. At the same time, the processing accuracy of the product has also been greatly improved.

The utility model is mainly used in the mold of high-speed stamping products that require no material lifting. Using the principle of leverage, the force is transmitted by the force arm, so that the concave mold moves upward with the downward movement of the punching rod, and the convex Under the action of the ejector pin, the mold presses the material belt first, and finally presses the material belt to death with the continuous downward movement of the punch fixing plate. The punch does not move and the die lifts to realize the bending of the product. The product deformation is minimal during the bending process.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Among them: 1. Upper die base; 2. Ejector; 3. Punch backing plate; 4. Punch fixing plate; 5. Punch; 6. Unloading plate; 7. Die fixing plate; 8. Die pad Plate; 9, lower mold base; 10, slide block; 11, lever; 12, die; 13, beat bar.

Detailed ways

Below in conjunction with accompanying drawing, illustrate the specific embodiment of the present utility model.

As shown in Figure 1, the bending structure of this embodiment includes an upper mold assembly and a lower mold assembly. The structure of the upper mold assembly is: including an upper mold base 1, and the lower part of the upper mold base 1 passes through a punch backing plate 3 Install the punch fixing plate 4, the punch fixing plate 4 is fixed with the punch 5, the upper die base 1 is fixed with the ejector rod 2 through the fastener, and the ejector rod 2 passes through the punch backing plate 3 and the top of the punch 5 against Connect; the structure of the lower mold assembly is: comprising the lower mold base 9, the lower mold base 9 is equipped with the die fixing plate 7 through the die backing plate 8, the upper part of the die fixing plate 7 has a discharge plate 6, and the die fixing plate Die 12 is installed on 7, and one side of die 12 has a first arc groove, and slide block 10 is installed on die fixing plate 7 at one end of die 12, and a second arc groove is opened on one side of slide block 10. The circular arc groove, the lever 11 is installed horizontally between the slider 10 and the die 12, and the two ends of the lever 11 cooperate with the first circular arc groove and the second circular arc groove respectively; The firmware is equipped with a beating rod 13, and the beating rod 13 passes through the unloading plate 6 and abuts against the slide block 10.

Have a slot for giving way on the unloading plate 6 .

In actual use, the operation is completed in the following ways:

When the upper mold moves downward, the punch 5 first presses the material belt under the action of the ejector rod 2, and finally presses the material belt with the continuous downward movement of the punch fixing plate 4, and the punching rod 13 follows the punch fixing plate 4 Push down the slider 10, the slider 10 makes the lever 11 rotate counterclockwise, thereby driving the die 12 to move upward, this structure ensures that the material belt is basically on a plane, and the lifting range is very small. The relief groove on the stripper plate 6 can also be opened very low, and the relative movement of the convex and concave dies of each bending strip is very small, which improves the bending precision and greatly improves the punching speed.

The above description is an explanation of the utility model, not a limitation of the utility model. For the scope limited by the utility model, please refer to the claims. Within the protection scope of the utility model, any form of modification can be made.

Claims (2)

1. a bending structure, comprise upper die component and lower mold assemblies, the structure of described upper die component is: comprise upper bolster (1), punch retainer (4) is installed by convex mould pad (3) in described upper bolster (1) bottom, described punch retainer (4) is fixed with punch (5), described upper bolster (1) is fixed with push rod (2) by securing member, and described push rod (2) abuts with punch (5) top through convex mould pad (3), the structure of described lower mold assemblies is: comprise die shoe (9), described die shoe (9) installs die block (7) by die backing plate (8), stripper (6) is arranged at described die block (7) top, described die block (7) is installed die (12), it is characterized in that: the side of described die (12) has the first arc groove, the die block (7) being positioned at die (12) one end is provided with slide block (10), the side of described slide block (10) has the second arc groove, lever (11) is horizontally installed with between described slide block (10) and die (12), the two ends of described lever (11) coordinate with the first arc groove and the second arc groove respectively, described punch retainer (4) is provided with by securing member and makes bar (13), described bar (13) of beating abuts with slide block (10) through stripper (6).

2. a kind of bending structure as claimed in claim 1, is characterized in that: (6) have slot to make way to described stripper.