CN105945167A - Material guiding plate device capable of accurate material feeding used for progressive die - Google Patents

Abstract

A precision feeding guide plate device for progressive dies, including a material guide plate, a material guide plate backing plate, a die backing plate, a lower die seat, a small guide post, a small guide sleeve, a return spring, and a cylindrical pin with internal threads , hexagon socket head cap screw a, hexagon socket cap socket head screw b and screw plug, the material guide plate and the material guide plate backing plate are connected and fixed by two internal thread cylindrical pins and two screws b, and the die backing plate is located on the material guide plate Between the backing plate and the lower mold base, the small guide post is located in the small guide post hole in the middle and fixed with the material guide plate and the material guide plate backing plate. The small guide post can be placed between the small guide sleeve and the small guide post of the lower die base. Move up and down in the through hole and make the material guide plate move up and down along the small guide post. The advantages of the present invention are: the device has a simple structure and is easy to manufacture and assemble the mould; To achieve positioning and ensure stamping accuracy, improve the accuracy and production efficiency of parts.

Description

A Precise Feeding Guide Plate Device for Progressive Die

technical field

The invention relates to a stamping die, in particular to a precise feeding guide plate device for a progressive die.

Background technique

The material guide plate is one of the basic forms of the most commonly used material feeding guide structure in the stamping die. Install the material guide plate on both sides of the die plane along the feeding direction of the material, and parallel to the central axis of the die. In the progressive die, the material guide plate is always used in conjunction with the support column, ejector rod or ejector to form the material guide system of the progressive die. In the progressive die, except for the pure blanking stamping which is plane processing, when the stamping processing form is three-dimensional blanking, flanging, bending, forming or stretching, when the continuous cutting, blanking and forming of the strip material During the process, in order to ensure the unimpeded feeding of the strip material in the mold, the strip material must float away from the plane of the die by a certain height after each process is completed. At the same time, since the material guide plate of the progressive die has a direct impact on the punching efficiency of the mold and the precision of the workpiece, the material guide plate in the mold can ensure the precise guidance of the strip material. The traditional material guide plate only has the function of guiding and has no floating material. Therefore, a new type of material guide device with both guiding and floating functions has been developed. The device not only designs the material guide plate and the floating top into one structure, but also the small guide column inside and the spring cooperate with each other to realize stable feeding and precise positioning. In this way, the material guide device has the function of a material guide column. This device is widely used in progressive dies, and is generally used in the initial feeding part.

Contents of the invention

The object of the present invention is to solve the above-mentioned problems and provide a precise feeding guide plate device for progressive dies with simple structure, accurate guidance, fast floating material and high stamping accuracy. material function.

Technical scheme of the present invention:

A precision feeding guide plate device for progressive dies, including a material guide plate, a material guide plate backing plate, a die backing plate, a lower die seat, a small guide post, a small guide sleeve, a return spring, and a cylindrical pin with internal threads , hexagonal socket head screw a, hexagonal socket head screw b and screw plug, the material guide plate is a rectangular steel plate, and the material feeding end of the material guide plate is provided with a slope with a slope of 20°±5°, the material guide plate There are three screw holes and two cylindrical pin holes on the surface; the surface shape of the material guide backing plate is the same as that of the material guide plate, and the surface of the material guide backing plate is provided with a screw through hole, two screw blind holes and two internal threads The cylindrical pin holes are respectively matched with the three screw holes and two cylindrical pin holes on the surface of the material guide plate. The material guide plate and the material guide plate backing plate are connected and fixed by two internal thread cylindrical pins and two screws b. The material guide plate The bottom surface of the backing plate is provided with two spring blind holes; the backing plate of the die is located between the backing plate of the material guide plate and the lower die seat, and the backing plate of the die is provided with two spring through holes and a small guide post through hole, two The spring through hole is matched with the two spring blind holes on the bottom surface of the backing plate of the material guide plate, the through hole of the small guide post is matched with the screw through hole on the surface of the backing plate of the material guide plate, and a small guide sleeve is arranged in the through hole of the small guide post; the lower die The seat is provided with two spring through holes and a small guide post through hole; the small guide post is located in the small guide post through hole in the middle and is fixed with the guide plate and the guide plate backing plate by screw a. The guide sleeve and the small guide post of the lower mold base move up and down and make the material guide plate move up and down along the small guide post; two return springs are respectively arranged in the spring blind hole and the spring through hole on both sides, and the two spring through holes Screw plugs are provided at the bottom of each; the material belt is in contact with the side wall of the material guide plate, and the material guide plate is installed on both sides of the die plane along the feeding direction of the material, and is parallel to the center line of the die.

The beneficial effects of the present invention are: 1) the device designs the material guide plate and the floating top device into one structure, the structure is simple, the material guide plate is easy to manufacture, and the mold is easy to assemble; 2) the guide is accurate and the floating material is fast, and the material can be fed smoothly , to improve the precision and production efficiency of the workpiece; 3) The small guide column inside and the spring cooperate with each other to achieve stable feeding and precise positioning, so that the device has the function of a guide column, which is suitable for punching, bending and other processes , It can ensure that the material belt can be positioned during the process of these processes, and the stamping accuracy can be ensured.

Description of drawings

Fig. 1 is a schematic structural diagram of the closed state of the material guide plate device.

Fig. 2 is a schematic diagram of the structure of the material guide device in an open state.

Fig. 3 is a top view structural diagram of the material guide plate device.

In the figure: 1. Material guide plate, 2. Material guide plate backing plate, 3. Die backing plate, 4. Lower die seat, 5. Small guide post, 6. Small guide sleeve, 7. Return spring, 8. Material Band, 9. internal thread cylindrical pin, 10. hexagon socket head screw a, 11. hexagon socket head screw b, 12. screw plug.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments will help to understand the present invention, but cannot limit the protection scope of the present invention.

Example:

A precision feeding guide plate device for progressive die, as shown in Figure 1-3, including a material guide plate 1, a material guide plate backing plate 2, a die backing plate 3, a lower die base 4, and a small guide post 5. Small guide sleeve 6, return spring 7, cylindrical pin with internal thread 9, hexagon socket head screw a10, hexagon socket head screw b11 and screw plug 12. The material guide plate 1 is a rectangular steel plate with a size of 150mm in length, 40mm in width and 20mm in thickness. A slope with a slope of 35° is provided at the material feeding end of the material guide plate 1, and three screw holes are provided on the surface of the material guide plate 1. and two cylindrical pin holes; the size of the material guide plate backing plate is a rectangular steel plate with a length of 150mm, a width of 50mm, and a thickness of 30mm. The surface of the material guide plate backing plate 2 is provided with a screw through hole, two screw blind holes and two internal threads The cylindrical pin holes are respectively matched with the three bolt holes and two cylindrical pin holes on the surface of the material guide plate 1. The material guide plate 1 and the material guide plate backing plate 2 pass through two internally threaded cylindrical pins with a diameter of 10mm and a length of 50mm 9 and two screws b11 with a diameter of 4 mm are connected and fixed. Two spring blind holes are provided on the bottom surface of the material guide plate backing plate 2; Backing plate 3 is provided with two spring through holes and a small guide post through hole. The two spring through holes match with the two spring blind holes on the bottom surface of the material guide plate backing plate. The small guide post through hole matches the surface of the material guide plate backing plate. The through hole of the screw is matched, and the small guide post hole is provided with a small guide sleeve 6; the lower mold base 4 is provided with two spring through holes and a small guide post through hole; the small guide post 5 is located in the middle of the small guide post through hole Inside and fixed with the material guide plate 1 and the material guide plate backing plate 2 by the screw a10 with a diameter of 8mm, the small guide post 5 with a diameter of 25mm can be inserted into the through hole of the small guide sleeve 6 with an outer diameter of 29.5mm and the small guide post of the lower mold base Move up and down and make the material guide plate move up and down along the small guide post; two return springs 7 with a diameter of 27mm are respectively arranged in the spring blind holes and spring through holes on both sides, and the bottoms of the two spring through holes are respectively provided with 30mm diameter screws. The plug 12; the material belt 8 is in contact with the side wall of the material guide plate 1, and the material guide plate 1 is installed on both sides of the plane of the die along the feeding direction of the material, and is parallel to the central axis of the die.

In this embodiment, when the mold is gradually opened from the closed state, the return spring 7 exerts an upward force on the material guide plate backing plate 2. Since the material guide plate 1 and the material guide plate backing plate 2 are fixed to each other, they both go up together. At the same time, the material belt 8 on the material guide backing plate also moves upward; the small guide post 5 installed on the material guide backing plate 2 cooperates with the small guide sleeve 6 installed on the concave template backing plate 3 Realize stable upward movement to float the material belt; realize smooth feeding and complete a process. When the mold starts to close, the small guide post 5 inside it cooperates with the spring 7 to achieve stable downward movement and precise positioning. This process is carried out in such a cycle, and the stamping process is accurately completed.

It should be noted that the above description of the embodiments is for those of ordinary skill in the art to understand and apply the present invention, and those skilled in the art can easily make various obvious modifications to these embodiments, And apply the general principles described here to other embodiments without creative effort. Therefore, improvements and modifications made by those skilled in the art according to the disclosure of the present invention are included in the protection scope of the present invention.

Claims (1)

1. A precise feeding guide plate device for progressive dies, characterized in that it includes a material guide plate, a material guide plate backing plate, a die backing plate, a lower mold base, a small guide post, a small guide sleeve, a reset Spring, cylindrical pin with internal thread, hexagon socket head screw a, hexagon socket head screw b and screw plug, the material guide plate is a rectangular steel plate, and the material feeding end of the material guide plate is provided with a slope of 20°±5° The surface of the material guide plate is provided with three screw holes and two cylindrical pin holes; the surface shape of the material guide plate backing plate is the same as that of the material guide plate, and the surface of the material guide plate backing plate is provided with a screw through hole and two screw blind holes. Holes and two cylindrical pin holes with internal thread are respectively matched with three screw holes and two cylindrical pin holes on the surface of the material guide plate, and the material guide plate and the backing plate of the material guide plate are passed through two cylindrical pins with internal thread and two screws b The connection is fixed. There are two spring blind holes on the bottom surface of the backing plate of the material guide plate; The two spring through holes match the two spring blind holes on the bottom of the backing plate of the material guide plate. The through holes of the small guide post match the screw through holes on the surface of the backing plate of the material guide plate. Small guide sleeve; the lower mold base is provided with two spring through holes and a small guide post through hole; the small guide post is located in the small guide post through hole in the middle and is fixed with the guide plate and the guide plate backing plate by screw a, The small guide post can move up and down in the small guide post hole of the small guide sleeve and the lower mold base and make the material guide plate move up and down along the small guide post; two return springs are respectively arranged in the spring blind hole and the spring through hole on both sides , the bottoms of the two spring through holes are respectively provided with screw plugs; the material belt is in contact with the side wall of the material guide plate, and the material guide plate is installed on both sides of the die plane along the feeding direction of the material, and is aligned with the center line of the die parallel.