A cutting die without guide column for closing upper and lower dies during cutting

Abstract

The utility model discloses a kind of blanking die without guide column when shear blade blanking upper die and lower die die, including upper die and lower die, the upper die includes upper die holder, the bottom of the upper die holder is equipped with a connecting plate, the lower surface of the connecting plate is equipped with an upper public clip by locking screw, the inside of the upper public clip is equipped with upper public, the outside of the upper public is equipped with clamping block for clamping the upper public, the outside of the upper public clip is equipped with locking screw for abutting the clamping block, the bottom of the upper public clip is sequentially equipped with elastic rubber and material return plate from top to bottom, the material return plate and the elastic rubber are locked in the upper public clip by screw rod and nut.The utility model is simple to install, and the upper public clip is convenient to install with the upper die holder, and the upper public is convenient to adjust, especially when the upper public and lower die die are die closed, guide column can not be used for assistance, two upper publics for blanking can be easily installed into lower die cavity, and the problem of die collision caused by previous upper public and lower die die when die closed will not occur.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a cutting mold that does not require guide pillars when the upper and lower molds of the shear blade are closed. Background Technology

[0002] In existing shear blade cutting dies, the upper male clamp has four or two guide pin holes for auxiliary die assembly, and four through holes for screws to pass through. Correspondingly, four threaded holes are made in the upper die base. Then, the upper male clamp is fixed to the upper die base from bottom to top using hex socket screws. Next, two cutting upper males are inserted into the upper male clamp and tightened using screws on the side of the clamp. Then, guide pins for temporary auxiliary die assembly are also inserted into the upper male clamp, with the guide pins being approximately 1 cm longer than the cutting upper males. Finally, the upper die base is fixed to the punch of the punch press using screws.

[0003] When the upper and lower dies are closed, the punch of the press is lowered, and the guide post pre-installed in the upper die clamp first enters the guide post hole of the lower die, thereby guiding the two upper die blanks into the two cavities of the lower die. Then, the lower die is fixed. Next, the punch of the press is raised to its highest point, allowing the temporary auxiliary guide post to exit the guide post hole of the lower die, and then the guide post is removed. Then, elastic adhesive for ejection is installed on the ejector plate, and the ejector plate is connected and fixed to the upper die clamp with screws and nuts. This completes the installation of the upper and lower dies.

[0004] However, this structure has several problems in actual operation;

[0005] 1. Due to inherent technically unsolvable deviations and errors between the guide pins of the upper male clamp and the guide pin holes of the lower die, as well as between the upper male and lower die cavities, when the guide pins mounted on the upper male clamp first enter the guide pin holes of the lower die to guide the two cutting upper males into the lower die cavity, misalignment between the upper male and lower die cavities, especially when the required clearance between the upper male and lower die cavities is relatively small, can easily lead to damage to the die due to collision.

[0006] 2. Inserting and removing the temporary auxiliary guide pillars for the upper male clamp also wastes time.

[0007] Therefore, in order to avoid the shortcomings of the existing technology, it is necessary to improve the existing technology. Utility Model Content

[0008] The purpose of this utility model is to overcome the shortcomings and deficiencies in the existing technology and provide a cutting mold that is easy to install and accurately guided, and does not require guide pillars when the upper and lower molds of the shear blade are closed.

[0009] This utility model is achieved through the following technical solution:

[0010] A cutting die that does not require guide pillars when the upper and lower dies of a scissor blade are closed includes an upper die and a lower die. The upper die includes an upper die base, a connecting plate is installed at the bottom of the upper die base, and an upper male clamp is installed under the connecting plate by a locking screw. An upper male is installed on the inner side of the upper male clamp, and a clamping block is provided on the outer side of the upper male. A locking screw is installed on the outer side of the upper male clamp to abut against the clamping block. From top to bottom, the bottom of the upper male clamp is provided with an elastic rubber and a ejector plate. The ejector plate and the elastic rubber are locked to the upper male clamp by a screw rod and a nut.

[0011] Furthermore, the upper mold base includes an upper mold top plate and an upper mold base plate arranged from top to bottom.

[0012] Furthermore, the ejector plate is provided with a through groove for the upper part to pass through.

[0013] Furthermore, the lower mold includes a base plate, and the lower mold is mounted on the top of the base plate.

[0014] Furthermore, clamping plates are provided on both the front and rear sides of the lower mold to abut against the lower mold.

[0015] Furthermore, mounting strips are provided on both the front and rear sides of the base plate, and the mounting strips are fitted with abutting screws that abut against the clamping plate.

[0016] Furthermore, a positioning block is provided on the side of the base plate, and the positioning block is equipped with abutting screws that abut against the lower mold.

[0017] Furthermore, the base plate is equipped with a material trough fixing plate, which is located at the bottom of the lower mold.

[0018] Furthermore, the lower mold is provided with a mold cavity corresponding to the upper mold.

[0019] Furthermore, the upper clamp is provided with a mounting groove for mounting the clamping block.

[0020] Compared to existing technologies, this utility model features an upper male clamp installed under the connecting plate via locking screws. A clamping block is provided on the outer side of the upper male clamp, and a locking screw is installed on the outer side of the upper male clamp to abut against the clamping block. The ejector plate and elastic rubber are locked to the upper male clamp via screw rods and nuts. This simplifies the installation of the upper mold, facilitates the installation of the upper male clamp and the upper mold base, and makes the upper male easy to adjust. In particular, when the upper male and lower mold cavities are closed, guide pillars are not required, making it easy to insert the two cutting upper males into the lower mold cavity. Furthermore, it avoids the collision problem that occurred when the upper male and lower molds were closed previously, saving mold installation time and resulting in better performance. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the material cutting mold of the present invention, which does not require guide pillars when the upper and lower molds of the shear blade are closed.

[0023] Figure 2 This is an exploded view of the structure of the cutting die of the present invention, which does not require guide pillars when the upper and lower dies of the shear blade are closed.

[0024] In the diagram: 1-Connecting plate; 2-Locking screw; 3-Upper male clamp; 4-Upper male clamp; 5-Clamping block; 6-Locking screw; 7-Elastic rubber; 8-Ejector plate; 9-Screw rod; 10-Nut; 11-Upper mold top plate; 12-Upper mold base plate; 13-Through groove; 14-Bottom plate; 15-Lower mold; 16-Clamping plate; 17-Installation strip; 18-Securing screw; 19-Positioning block; 20-Abutting screw; 21-Material groove fixing plate; 22-Mold cavity; 23-Installation groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1 and Figure 2This utility model discloses a cutting mold for shear blade cutting that eliminates the need for guide pillars when the upper and lower molds are closed. It includes an upper mold and a lower mold. The upper mold includes an upper mold base with a connecting plate 1 installed at its bottom. An upper male clamp 3 is installed below the connecting plate 1 via a locking screw 2. An upper male clamp 4 is installed inside the upper male clamp 3, and a clamping block 5 is provided on the outside of the upper male clamp 4. A locking screw 6 is installed on the outside of the upper male clamp 3 to abut against the clamping block 5. From top to bottom, the bottom of the upper male clamp 3 has an elastic rubber 7 and a material ejection plate 8. The material ejection plate 8 and the elastic rubber 7 are locked to the upper male clamp 3 by a screw rod 9 and a nut 10. The mold is simple to install; the connecting plate 1 and the upper male clamp 3 are easy to install; the upper male clamp 4 is quick and stable to install. When the upper male clamp 4 and the lower mold cavity 22 are closed, guide pillars are not required. The elastic rubber 7 serves to eject the material, and the collision problem caused by the upper and lower molds during closing, as in previous models, is avoided. This saves mold installation time and provides good performance.

[0027] The upper die base includes an upper die top plate 11 and an upper die base plate 12 arranged from top to bottom, which facilitates the installation of the upper die onto the punch press.

[0028] The ejector plate 8 is provided with a through groove 13 for the upper male 4 to pass through, which facilitates the ejection of the upper male 4.

[0029] The lower mold includes a base plate 14, and a lower mold 15 is installed on the top of the base plate 14 to facilitate the installation of the lower mold 15.

[0030] The lower mold 15 is provided with clamping plates 16 on both the front and rear sides to abut against the lower mold 15, which facilitates the stable installation of the lower mold 15.

[0031] The base plate 14 is provided with mounting strips 17 on both the front and rear sides. The mounting strips 17 are equipped with clamping screws 18 that abut against the clamping plate 16, so that the clamping plate 16 can easily clamp the lower mold 15 securely.

[0032] The base plate 14 is provided with a positioning block 19 on its side. The positioning block 19 is equipped with abutting screws 20 that abut against the lower mold 15, making the installation of the lower mold 15 more stable and preventing the lower mold 15 from shifting left and right.

[0033] The base plate 14 is equipped with a material trough fixing plate 21, which is located at the bottom of the lower mold 15 to facilitate material discharge after cutting.

[0034] The lower mold 15 is provided with a mold cavity 22 corresponding to the upper mold 4, which facilitates material cutting.

[0035] The upper male clamp 3 is provided with an installation groove 23 for installing the clamping block 5, which facilitates the stable installation of the clamping block 5, makes the clamping block 5 clamp the upper male 4 more stably, and is also convenient for adjustment.

[0036] The screw rod 9 is installed on the ejector plate 8 by a fastening nut, which facilitates the quick and stable installation of the screw rod 9.

[0037] Specific steps for mold installation:

[0038] First, fix the lower die on the lower table of the punch press. Secure the connecting plate 1 to the upper die holder with screws. Then, fix the upper die holder (including the connecting plate 1) to the punch of the punch press. Next, insert the two upper males 4 into the upper male clamp 3 and use the locking screws 6 on both sides of the upper male clamp 3 to tighten the clamping block 5 and the upper males 4. Then, place the elastic rubber 7, which is slightly lower than the upper males 4, in the middle of the lower die, with one in the front and one in the back. Then, hold the two ends of the upper male clamp 3 with the clamping block 5 and the upper males 4 installed with both hands, and gently insert the two upper males 4 installed in the upper male clamp 3 into the two mold cavities 22 of the lower die. This easily completes the key step of the upper males 4 and the lower die closing, and there is no situation where the upper males 4 collide with the lower die and damage the mold. Then, using the two elastic rubbers 7 placed in the middle front and rear positions of the lower die 15 in the previous step, the upper male clamp 3, which contains the upper male 4 and clamping block 5, is first supported. Then, two more elastic rubbers 7 are inserted into both ends of the upper male clamp 3 to keep the upper male clamp 3 stable. Then, the punch of the press is lowered until the connecting plate 1 of the upper die base presses down on the upper male clamp 3. Then, using the extended nut and the external hexagonal locking screw 2, the upper male clamp 3 is tightened from top to bottom onto the connecting plate 1 of the upper die base through the four elongated through slots at the front and rear. This completes the fixing of the upper male clamp 3 to the upper die base. Then, the punch of the press is raised to the highest point, and the upper ejector elastic rubber 7 is installed on the ejector plate 8. The elastic rubber 7 is fitted onto the screw rod 9, and then the ejector plate 8 and the upper male clamp 3 are connected and fixed by the screw rod 9 and the nut 10. This completes the overall installation of the upper and lower dies.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cutting die that does not require guide pillars when the upper and lower dies of the shear blade are closed, characterized in that: The device includes an upper mold and a lower mold. The upper mold includes an upper mold base. A connecting plate is installed at the bottom of the upper mold base. An upper male clamp is installed under the connecting plate by a locking screw. An upper male is installed on the inner side of the upper male clamp. A clamping block for holding the upper male is provided on the outer side of the upper male clamp. A locking screw that abuts against the clamping block is installed on the outer side of the upper male clamp. An elastic rubber and a ejector plate are arranged sequentially from top to bottom at the bottom of the upper male clamp. The ejector plate and the elastic rubber are locked to the upper male clamp by a screw rod and a nut.

2. The cutting die according to claim 1, which does not require guide pillars when the upper and lower dies of the shear blade are closed, is characterized in that: The upper mold base includes an upper mold top plate and an upper mold base plate arranged from top to bottom.

3. The cutting die according to claim 1, which does not require guide pillars when the upper and lower dies of the shear blade are closed, is characterized in that: The ejector plate is provided with a through groove for the upper part to pass through.

4. The cutting die according to claim 1, which does not require guide pillars when the upper and lower dies of the shear blade are closed, is characterized in that: The lower mold includes a base plate, and the lower mold is mounted on the top of the base plate.

5. The cutting die according to claim 4, which does not require guide pillars when the upper and lower dies of the shear blade are closed, is characterized in that: The lower mold is provided with clamping plates on both the front and rear sides to abut against the lower mold.

6. The cutting die according to claim 5, which does not require guide pillars when the upper and lower dies of the shear blade are closed, is characterized in that: The base plate is provided with mounting strips on both the front and rear sides, and the mounting strips are fitted with clamping screws that abut against the clamping plate.

7. The cutting die according to claim 4, which does not require guide pillars when the upper and lower dies of the shear blade are closed, is characterized in that: The base plate is provided with a positioning block on its side, and the positioning block is equipped with abutting screws that abut against the lower mold.

8. The cutting die according to claim 4, which does not require guide pillars when the upper and lower dies of the shear blade are closed, is characterized in that: The base plate is equipped with a material trough fixing plate, which is located at the bottom of the lower mold.

9. The cutting die according to claim 4, which does not require guide pillars when the upper and lower dies of the shear blade are closed, is characterized in that: The lower mold has a cavity corresponding to the upper mold.

10. The cutting die according to claim 1, which does not require guide pillars when the upper and lower dies of the shear blade are closed, is characterized in that: The upper clamp is provided with a mounting groove for mounting the clamping block.

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