Combined blanking die

Abstract

The utility model relates to cutter production equipment, in particular to a combined blanking die. The utility model aims to provide a combined blanking die which has the characteristics of good universality and high production efficiency. According to the technical scheme, the combined blanking die comprises an upper die base and a lower die base. The die is characterized in that the upper die holder and the lower die holder are provided with a combined die; the combined die is fixed to the upper die base and the lower die base through a pressing structure. The combined die comprises a round hole die, a first notch die, a cutting die and a second notch die which are sequentially arranged in the moving direction of the strip.

Description

Technical Field

[0001] This utility model relates to a cutting tool production equipment, specifically a combined punching die. Background Technology

[0002] In the production of garden tools (lawn mower blades), the stamping process is the main process for forming the shape of the blade. The stamping process includes blanking and forming. The specific steps of blanking are as follows: first, the strip material is cut into single blanks; then, holes are punched in the blanks; and finally, notches are cut into the blanks. After blanking is completed, the blanks undergo forming.

[0003] The existing punching process, including punching, notching, and cutting, must be carried out step by step on three punch presses. Furthermore, the interchangeability between dies for different products is poor. When the style of the cutting tool changes, the stamping die also needs to be replaced simultaneously. This is not only cumbersome to operate, but also has low production efficiency and is no longer compatible with automated production lines. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings in the above-mentioned background technology and provide a combined punching die, which should have the characteristics of good versatility and high production efficiency.

[0005] The technical solution of this utility model is:

[0006] A combined punching die includes an upper die base and a lower die base; characterized in that: the upper die base and the lower die base are provided with a combined die; the combined die is fixed on the upper die base and the lower die base by a clamping structure; the combined die includes a round hole die, a first notch die, a cutting die, and a second notch die arranged sequentially along the material moving direction.

[0007] The clamping structure includes a stop block and a guide block equipped with a pressure block; the pressure block is tiltably and slidably positioned on the guide block; the stop block, guide block and pressure block are all fixed to the upper mold base and the lower mold base by fasteners; the pressure block is disposed on the side of the combined mold.

[0008] The guide block is provided with an inclined sliding groove, and the pressure block is provided with a sliding rail that cooperates with the sliding groove.

[0009] The blocks include a front block disposed on the feeding side of the combined mold, a rear block disposed on the discharging side of the combined mold, a side block disposed on the side of the combined mold, and a middle block disposed between the combined molds; the pressure block and the side block are disposed on both sides of the combined mold.

[0010] The lower die base is also provided with a positioning block assembly and a push block assembly for adjusting the position of the material; the positioning block assembly includes a positioning block that can be horizontally slidably positioned on the middle stop block and the rear stop block, and a differential instrument for adjusting the position of the positioning block; the push block assembly includes a push block and a cylinder for driving the push block to move horizontally.

[0011] The positioning block and the pusher block are respectively arranged on both sides of the conveyor belt movement direction; the movement direction of the positioning block and the pusher block is perpendicular to the conveyor belt movement direction.

[0012] The differentiator is fixed to the lower mold base, and the measuring rod of the differentiator is connected to the positioning block.

[0013] The combined mold also includes a pad block mold; the combined mold includes a round hole mold, a pad block mold, a first notch mold, a pad block mold, a cutting mold, a pad block mold, a second notch mold, and a pad block mold arranged sequentially along the moving direction of the conveyor belt.

[0014] The front stop, round hole mold, middle stop, pad block mold, first notch mold, pad block mold, cutting mold, pad block mold, second notch mold, pad block mold, and rear stop are arranged sequentially along the material movement direction.

[0015] The beneficial effects of this utility model are:

[0016] This invention adopts a universal design, replacing the integral mold with several modular molds arranged in a production line. These modular molds are used for punching, notching, and cutting processes. Only one punch press is needed to achieve production line production of punching, notching, and cutting. Furthermore, different arrangements of the modular molds can be used to adapt to products of various shapes. When the product changes, only the corresponding modular mold needs to be replaced. Therefore, this invention greatly simplifies the production steps and improves production efficiency. Attached Figure Description

[0017] The following describes some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the left-side structure of this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the lower mold base of this utility model.

[0022] Figure 5 This is a top view of the lower mold base of this utility model.

[0023] Figure 6 This is a three-dimensional structural diagram of the upper mold base of this utility model.

[0024] Figure 7 This is a bottom view of the upper mold base of this utility model.

[0025] Figure 8 This is a three-dimensional structural diagram of the positioning component of this utility model.

[0026] Figure 9 This is a three-dimensional structural diagram of the pusher assembly of this utility model.

[0027] Figure 10 This is a three-dimensional structural diagram of the pressing block of this utility model.

[0028] Figure 11 This is one of the schematic diagrams of the working steps of this utility model.

[0029] Figure 12 This is the second schematic diagram of the working steps of this utility model.

[0030] Figure 13 This is the third schematic diagram of the working steps of this utility model.

[0031] Figure 14 This is a schematic diagram of a lawnmower blade.

[0032] Figure reference numerals: Standard punch press plate A, upper die holder 1, lower die holder 2, combined die 3, round hole die 3-1, first notch die 3-2, cutting die 3-3, second notch die 3-4, pad block die 3-5, stop block 4, front stop block 4-1, rear stop block 4-2, side stop block 4-3, middle stop block 4-4, pressure block 5, slide rail 5.1, guide block 6, slide groove 6.1, positioning block 7, differential caliper 8, connecting plate 8-1, push block 9, cylinder 10, blade 12, round hole 12-1, notch 12-2, strip material 13. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0034] like Figure 1 As shown, the combined blanking die includes an upper die holder 1 and a lower die holder 2. Both the upper die holder and the lower die holder are equipped with dies, including an upper die set on the upper die holder and a lower die set on the lower die holder.

[0035] The upper die holder is vertically and slidably positioned above the lower die holder via a guide structure. The upper and lower die holders are mounted on a standard punch press plate A. The standard punch press plate moves up and down, causing the upper and lower dies to close together to complete the blanking process of the blade.

[0036] The above structure is the same as the existing technology. The improvements of this utility model are: 1. The integral mold is changed to a combination mold, and different arrangements of the combination mold are used to adapt to the product; 2. The material position is adjusted by the positioning block assembly and the push block assembly; 3. The combination mold is fixed on the upper mold base and the lower mold base respectively by the clamping structure.

[0037] 1. Combination mold

[0038] The mold set on the upper mold base and the lower mold base is a combination mold 3.

[0039] The combined die set includes a round hole die 3-1, a first notch die 3-2, a cutting die 3-3, a second notch die 3-4, and a spacer die 3-5. The cutting die is used to sequentially cut continuous strip material into individual blanks (i.e., blades). The round hole die is used to create a round hole in the center of the blade. The first and second notch dies are used to create symmetrical notches along the edge of the blade. The spacer die is used to fill the gaps between the combined dies and support the blade during punching.

[0040] Since the combined mold is divided into an upper mold and a lower mold, the following are true: the round hole mold includes an upper round hole mold and a lower round hole mold; the first notch mold includes an upper first notch mold and a lower first notch mold; the cutting mold includes an upper cutting mold and a lower cutting mold; the second notch mold includes an upper second notch mold and a lower second notch mold; and the pad block mold includes an upper pad block mold and a lower pad block mold.

[0041] Apart from the pad block mold, these upper and lower molds are arranged in a corresponding manner. When the upper mold is a punch, the corresponding lower mold is a die, or when the upper mold is a die, the corresponding lower mold is a punch.

[0042] like Figure 6 and Figure 7 As shown, for the upper die holder: the upper die includes components along the strip movement direction ( Figure 2 The molds arranged in sequence (in the direction of the horizontal arrows) are: upper mold for the round hole, upper mold for the pad block, upper mold for the first notch, upper mold for the pad block, upper mold for the cut, upper mold for the pad block, upper mold for the second notch, and upper mold for the pad block.

[0043] like Figure 4 and Figure 5As shown, for the lower die holder: the lower die includes a circular hole lower die, a pad block lower die, a first notch lower die, a pad block lower die, a cutting lower die, a pad block lower die, a second notch lower die, and a pad block lower die arranged sequentially along the material movement direction.

[0044] 2. Compression structure

[0045] The clamping structure includes a stop block 4, a pressure block 5, and a guide block 6. The stop block, guide block, and pressure block are all fixed to the upper mold base and the lower mold base by fasteners.

[0046] The stop blocks include a front stop block 4-1, a rear stop block 4-2, a side stop block 4-3, and a middle stop block 4-4. The front stop block is located on the material feeding side of the combined mold. Figure 2 The rear stop is located on the material discharge side of the combined mold (right side). Figure 2 (on the left side), the side stop is set on the side of the combined mold ( Figure 5 Above and Figure 7 (below), the middle stop block is set between two adjacent combined molds.

[0047] like Figure 6 and Figure 7 As shown, for the upper die holder: front stop, upper die with round hole, middle stop, upper die with pad block, upper die with first notch, upper die with pad block, upper die with cutting, upper die with pad block, upper die with second notch, upper die with pad block, and rear stop along the material movement direction ( Figure 7 The arrows are arranged sequentially (in the direction of the arrows). The combined mold located between the middle stop block and the rear stop block shares a single side stop block.

[0048] like Figure 4 and Figure 5 As shown, for the lower die holder: front stop, round hole lower die, middle stop, pad block lower die, first notch lower die, pad block lower die, cutting lower die, pad block lower die, second notch lower die, pad block lower die, rear stop along the material movement direction ( Figure 5 The arrows are arranged sequentially (in the direction of the arrows). The combined mold located between the middle stop block and the rear stop block shares a single side stop block.

[0049] The pressure block can be tilted and slidably positioned on the guide block, such as Figure 10 As shown, the guide block has an inclined groove 6.1 on the side facing the combined mold, and the pressure block has a slide rail 5.1 that mates with the groove. The pressure block and the side stop are located on both sides of the combined mold. Each combined mold can be individually pressed by a pressure block, or multiple combined molds can be simultaneously pressed and fixed by a single pressure block.

[0050] When installing the combined mold, first place the combined mold in position so that it abuts against the side stop block, then tighten the fasteners of the pressure block to press and fix the combined mold. The pressure block applies horizontal pressure to the combined mold to make it press against the side stop block, the pressure block applies vertical upward pressure to the combined mold on the upper mold base to make it press against the upper mold base, and the pressure block applies vertical downward pressure to the combined mold on the lower mold base to make it press against the lower mold base.

[0051] 3. Positioning block component and push block component

[0052] The lower mold base is equipped with a positioning block assembly and a push block assembly.

[0053] like Figure 8 As shown, the positioning block assembly includes a positioning block 7 and a differentiator 8. There are two positioning blocks, which are horizontally slidably positioned on the middle stop and the rear stop (these two stops have corresponding strip grooves). The sliding direction of the positioning blocks is perpendicular to the material movement direction. The differentiator is fixed to the lower die base via a connecting plate 8-1. The measuring rod of the differentiator is connected to the positioning block, and the position of the positioning block can be adjusted by rotating the sleeve of the differentiator.

[0054] The push block assembly is located on the side of the middle stop block and includes a cylinder 10 and a push block 9. The cylinder is fixed to the lower mold base, and the push block is fixed to the piston rod of the cylinder. The moving direction of the push block is perpendicular to the moving direction of the strip material. The positioning block and the push block are provided with arc surfaces for cooperating with the moving of the strip material.

[0055] The positioning block and the pusher block are respectively positioned in the direction of material movement. Figure 2 The two positioning blocks are positioned on either side of the arrow direction, and the line connecting the two positioning blocks is parallel to the length direction of the strip.

[0056] After adjusting the two positioning blocks into place, the cylinder is activated when the strip moves. The pusher presses the strip onto the positioning blocks. Since the two points are aligned, the strip is accurately held in the punching position, waiting for the upper die to descend for punching.

[0057] like Figure 14 As shown, the blade 12 has a circular hole 12-1 at its center and two notches 12-2 along its edge.

[0058] The working principle of this utility model is as follows:

[0059] 1. For example Figure 11 As shown, the upper mold base moves upward to open the mold, and the external device takes away the blank material after punching for subsequent processing, and a round hole and the first notch are made on the strip 13.

[0060] 2. For example Figure 12 As shown, the strip moves forward to the designated position, and the push plate moves forward to position the strip.

[0061] 3. For example Figure 13 As shown, the upper mold base moves downward to close the mold, creating a second notch on the strip material. At the same time, the strip material is cut into a blank material, and the push plate moves backward.

[0062] 4. Repeat steps 1 through 3.

[0063] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A combined blanking die comprising an upper die shoe (1) and a lower die shoe (2); characterized in that: The upper die holder and the lower die holder are provided with a combined die (3); the combined die is fixed on the upper die holder and the lower die holder through a pressing structure; the combined die comprises a round hole die (3-1), a first gap die (3-2), a cutting die (3-3) and a second gap die (3-4) arranged in sequence along the moving direction of the strip.

2. The combination blanking die according to claim 1, characterized in that: The pressing structure comprises a stop block (4) and a guide block (6) provided with a pressing block (5); the pressing block is obliquely and slidably positioned on the guide block; the stop block, the guide block and the pressing block are fixed on the upper die holder and the lower die holder through fasteners; the pressing block is arranged on the side of the combined die.

3. The combination blanking die of claim 2, wherein: The guide block is provided with an obliquely arranged sliding groove (6.1), and the pressing block is provided with a sliding rail (5.1) matched with the sliding groove.

4. The combination blanking die according to claim 3, characterized in that: The stop block comprises a front stop block (4-1) arranged on the feeding side of the combined die, a rear stop block (4-2) arranged on the discharging side of the combined die, a side stop block (4-3) arranged on the side of the combined die and a middle stop block (4-4) arranged between the combined dies; the pressing block and the side stop block are arranged on both sides of the combined die.

5. The combination blanking die of claim 4, wherein: The lower die holder is further provided with a positioning block assembly and a push block assembly for adjusting the position of the strip; the positioning block assembly comprises a positioning block (7) horizontally and slidably positioned on the middle stop block and the rear stop block and a differential instrument (8) for adjusting the position of the positioning block; the push block assembly comprises a push block (9) and a cylinder (10) for driving the horizontal movement of the push block.

6. The combination blanking die of claim 5, wherein: The positioning block and the push block are arranged on both sides of the moving direction of the strip respectively; the moving directions of the positioning block and the push block are perpendicular to the moving direction of the strip.

7. The combination blanking die of claim 6, wherein: The differential instrument is fixed on the lower die holder, and a measuring rod of the differential instrument is connected with the positioning block.

8. The combination blanking die of claim 7, wherein: The combined die further comprises a spacer die (3-5); the combined die comprises the round hole die, the spacer die, the first gap die, the spacer die, the cutting die, the spacer die, the second gap die and the spacer die arranged in sequence along the moving direction of the strip.

9. The combination blanking die of claim 8, wherein: The front stop block, the round hole die, the middle stop block, the spacer die, the first gap die, the spacer die, the cutting die, the spacer die, the second gap die, the spacer die and the rear stop block are arranged in sequence along the moving direction of the strip.

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