A mold structure for cutting off waste material

Abstract

The utility model discloses a die structure of cutting off waste material, including upper die and lower die, the lower die is installed on the mesa of punch press, the upper die is equipped with trimming punch, cutting off punch, the trimming punch is used for with lower die cooperation and cuts out product periphery a circle waste material, realizes the preliminary separation of waste material and finished product, the cutting off punch is used for to product periphery waste material carries out segmented type cutting off, the lower die is equipped with lower die plate, and the periphery whole body of this lower die plate constitutes the trimming cutting edge corresponding with upper die trimming punch, the lower die still is equipped with the material ejecting block and with upper die cutting off punch corresponding cutting off cutting edge, the material ejecting block is used for in the die opening die and will eject segmented after waste material, the lower die still is equipped with the inclined surface seat, and the inclined surface seat is used for guiding the waste material that ejects and slides to punch press mesa, the four corners of lower die are equipped with the blanking hole that communicates to punch press mesa, is used for discharging the waste material of product four corners. The utility model can realize the automatic separation of waste material, and promotes production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a mold structure for cutting off and removing waste material. Background Technology

[0002] In the existing technology, there are two typical solutions for processing the edges of a product, but both have obvious drawbacks:

[0003] Firstly, traditional processing methods (such as a certain old mold structure) use cutting punches around the upper mold and cutting blades around the lower mold to complete the product trimming. However, this method does not segment the waste material, resulting in waste material remaining in a whole form. This method requires an external ejector plate (relying on spring movement) to push the waste material out above the cutting blades, and then the waste material is manually removed. This process has significant drawbacks: manual material removal is time-consuming, leading to low production efficiency; and the product is easily damaged during material removal, causing scratches, dents, and other defects, resulting in a low product yield; at the same time, the mold needs to be equipped with a complete external ejector plate, increasing the mold manufacturing cost.

[0004] Secondly, the existing technology CN204052604U discloses a mold for processing new base metal floors, which achieves waste disposal through the cooperation of "two-end upper die cutting punches and two-end waste ejection holes". It relies on gravity to make the waste automatically fall onto the punch press, and "eight"-shaped external anti-slip grooves are set on the four sides of the mold to handle corner waste. However, this solution only allows the waste to fall freely through the ejection holes, without optimizing the waste movement path design. It is easy for the waste to get stuck in the ejection holes or the gap of the mold, which will still affect the continuity and efficiency of processing, and does not solve the product defects caused by manual intervention or waste disposal.

[0005] Therefore, there is an urgent need for a waste material cutting and unloading mold structure that can achieve automatic and efficient waste material removal, reduce manual intervention, improve production efficiency and product yield, and reduce mold costs. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a mold structure for cutting and unloading waste materials, which can realize fully automatic unloading of waste materials and improve production efficiency.

[0007] To solve the above-mentioned technical problems, this utility model discloses a mold structure for cutting and unloading waste material, including an upper mold and a lower mold, wherein the lower mold is installed on the table of a punch press.

[0008] The upper die is equipped with a cutting punch and a cutting punch; wherein, the cutting punch is used to cooperate with the lower die to cut off a circumference of waste material around the product, so as to achieve the initial separation of waste material from finished product; the cutting punch is used to cut the waste material around the product in segments;

[0009] The lower mold is provided with a lower template, and the outer ring of the lower template forms a cutting edge corresponding to the cutting edge punch of the upper mold; the lower mold is also provided with an ejector block and a cutting edge corresponding to the cutting edge punch of the upper mold. The ejector block is used to eject the segmented waste material when the mold is opened.

[0010] The lower die is also provided with an inclined seat, which is used to guide the ejected waste material to slide down onto the punch press table.

[0011] The lower die has discharge holes at its four corners that connect to the punch press table, used to discharge waste material from the four corners of the product.

[0012] As an optional implementation, the cutting edge punch of the upper die is aligned with the cutting edge of the outer ring of the lower die plate; the cutting edge punch of the upper die is aligned with the cutting edge of the lower die.

[0013] As another alternative implementation, the ejector block is elastically connected to the lower mold via a spring, which drives the ejector block to move upward when the mold opens.

[0014] As another alternative implementation, at least one side of the lower mold is provided with an outer ejector plate for ejecting waste material at that location.

[0015] As another alternative implementation, the outer ejector plate is connected to the lower mold via a spring, and is used to lift the waste material when the mold opens.

[0016] As another optional implementation, the cutting punch of the upper die is aligned with the cutting edge of the lower die to achieve the cutting of the product.

[0017] As another optional implementation, the top of the top material block is provided with an arc-shaped transition surface to reduce scratches on the waste material during the top material feeding process.

[0018] As another optional implementation, the end of the inclined seat smoothly transitions to the punch press table to prevent the waste material from getting stuck during the sliding process.

[0019] As another optional implementation, the cutting punch and the corresponding cutting edge are provided at least two times on each side of the product.

[0020] Compared with the prior art, the embodiments of this utility model have the following beneficial effects:

[0021] This utility model embodiment achieves fully automatic waste removal from the mold through a collaborative design of "segmented waste cutting + active ejection by the top material block + inclined surface guidance + four corner cutting holes for assistance," without the need for manual intervention, thus improving production efficiency. After segmented cutting, the length of the waste is shortened, and in conjunction with the top material block and inclined surface, the problem of "waste jamming" in traditional molds is completely solved, ensuring continuous processing. It reduces manual contact with the product, thereby reducing the rate of product scratches and pressure damage. Compared with traditional molds that require full circumferential ejection, the structure is simplified and manufacturing costs are reduced. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0023] Figure 1 This is a schematic diagram of the product structure of a waste material to be cut around its perimeter, as disclosed in an embodiment of this utility model;

[0024] Figure 2 This is a schematic diagram of the upper mold structure of a mold structure disclosed in an embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram of the lower mold structure of a mold structure disclosed in an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the mold structure when the mold starts cutting the material, as disclosed in this embodiment of the utility model.

[0027] Figure 5 This is a disclosure of the embodiments of this utility model. Figure 4 Schematic diagram of the upper and middle mold sections;

[0028] Figure 6 This is a disclosure of the embodiments of this utility model. Figure 4 Schematic diagram of the middle and lower mold section;

[0029] Figure 7 This is a disclosure of the embodiments of this utility model. Figure 4 A partially enlarged structural diagram;

[0030] Figure 8 This is a three-view structural schematic diagram of the cutting edge of a mold structure disclosed in an embodiment of this utility model. Detailed Implementation

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] See Figures 1-8 This utility model discloses a die structure for cutting and unloading waste material, including an upper die 1 and a lower die 2, wherein the lower die 2 is mounted on the table of a punch press (not shown in the accompanying drawings).

[0033] The upper mold 1 is provided with a cutting punch 10 and a cutting punch 11; wherein, the cutting punch 10 is used to cooperate with the lower mold to cut out a circle of waste material around the product A, so as to achieve the initial separation of waste material and finished product; the cutting punch 11 is used to cut the waste material around the product A in segments;

[0034] The lower mold 2 is provided with a lower template 21, and the outer ring of the lower template 21 forms a cutting edge 211 corresponding to the cutting edge punch 10 of the upper mold; the lower mold 2 is also provided with an ejector block 5 and a cutting edge 22 corresponding to the cutting edge punch 11 of the upper mold 1. The ejector block 5 is used to eject the segmented waste material when the mold is opened.

[0035] The lower die 2 is also provided with an inclined seat, which is used to guide the ejected waste material to slide down onto the punch press table;

[0036] The lower die 2 has discharge holes 4 at its four corners that connect to the punch press table, used to discharge waste material from the four corners of the product.

[0037] This utility model embodiment achieves fully automatic waste removal from the mold through a collaborative design of "segmented waste cutting + active ejection by the top material block + inclined surface guidance + four corner cutting holes for assistance," without the need for manual intervention, thus improving production efficiency. After segmented cutting, the length of the waste is shortened, and in conjunction with the top material block and inclined surface, the problem of "waste jamming" in traditional molds is completely solved, ensuring continuous processing. It reduces manual contact with the product, thereby reducing the rate of product scratches and pressure damage. Compared with traditional molds that require full circumferential ejection, the structure is simplified and manufacturing costs are reduced.

[0038] The inclined surface seat is the inclined side of the cutting edge 22 (see...). Figure 8 ).in addition, Figure 8 221 is the cutting edge of the cutting blade 22, which is used to cooperate with the cutting punch 11 for cutting.

[0039] Figure 4 and Figure 7This is a schematic diagram of the structure of the mold when it starts cutting the material. The cutting edge 22 is shorter than the edge cutting edge 211 (the outer ring of the lower template 21). The edge cutting edge 211 cuts the edge with the edge cutting punch 10 first, and then the cutting edge 22 cuts the material with the cutting punch 11. Therefore, this mold achieves the cutting edge first and then the cutting in one cut.

[0040] In an optional embodiment, the cutting punch 10 of the upper die 1 is aligned with the cutting edge 211 of the outer periphery of the lower die 21; the cutting punch 11 of the upper die 1 is aligned with the cutting edge 22 of the lower die 2.

[0041] In another optional embodiment, the cutting punch 11 and the corresponding cutting blade 22 are provided at two locations on each side of the product. The two cutting blades 22 on each side of the product evenly divide the circumferential strip of waste into multiple segments, each segment being shorter in length, reducing the resistance to material removal and making it easier for the ejector block 5 to be ejected; the even segmentation ensures that the waste is subjected to balanced force, avoiding local jamming and improving the success rate of material removal.

[0042] In another optional embodiment, the ejector block 5 is elastically connected to the lower mold 2 via a spring, which drives the ejector block 5 to move upward when the mold opens. The spring drives the ejector block 5, automatically ejecting waste material when the mold opens, without requiring additional power and reducing structural costs; the spring's buffering effect prevents the ejector block 5 from making hard contact, reducing the wear rate of mold components.

[0043] In another optional embodiment, at least one side of the lower mold 2 is provided with an outer ejector plate 6 for ejecting waste material at that location. The outer ejector plate 6 can assist in ejecting waste material from the sides (especially areas where waste material has strong adhesion), improving the success rate of waste material removal from the sides; the flexible design of "at least one side" can be adapted to different working conditions according to the product structure, improving the versatility of the mold.

[0044] In another alternative embodiment, the outer ejector plate 6 is connected to the lower mold 2 by a spring, and is used to lift the waste material when the mold opens.

[0045] In another optional embodiment, the cutting punch 11 of the upper die 1 is aligned with the cutting edge 22 of the lower die 2 to achieve edge trimming of the product.

[0046] The cutting punch 11 of the upper die 1 and the cutting blade 22 of the lower die 2 form a "shearing pair" and together complete the cutting of waste material when the die is closed.

[0047] In another optional embodiment, the top of the top material block 5 is provided with an arc-shaped transition surface to reduce scratches on the waste material during ejection. The arc-shaped transition surface ensures "arc-shaped contact" between the ejector block and the waste material during ejection, reducing the scratch rate of the waste material; the arc-shaped surface guides the waste material to slide, further reducing the ejection resistance and making the unloading process smoother.

[0048] In another optional embodiment, the end of the inclined seat smoothly transitions to the punch press table to prevent waste from getting stuck during the sliding process. This smooth transition eliminates the jamming point between the inclined surface and the table, reducing the waste slippage jamming rate and ensuring smooth operation throughout the entire unloading process; it also allows the waste to quickly slide into the collection device, further improving the level of automation.

[0049] The contents disclosed in this utility model embodiment are merely preferred embodiments of this utility model and are only used to illustrate the technical solutions of this utility model, not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A die structure for cutting and unloading waste material, comprising an upper die and a lower die, wherein the lower die is mounted on the table of a punch press, characterized in that, The upper die is equipped with a cutting punch and a cutting punch; wherein, the cutting punch is used to cooperate with the lower die to cut off a circumference of waste material around the product, so as to achieve the initial separation of waste material from finished product; the cutting punch is used to cut the waste material around the product in segments; The lower mold is provided with a lower template, and the outer ring of the lower template forms a cutting edge corresponding to the cutting edge punch of the upper mold; the lower mold is also provided with an ejector block and a cutting edge corresponding to the cutting edge punch of the upper mold. The ejector block is used to eject the segmented waste material when the mold is opened. The lower die is also provided with an inclined seat, which is used to guide the ejected waste material to slide down onto the punch press table. The lower die has discharge holes at its four corners that connect to the punch press table, used to discharge waste material from the four corners of the product.

2. The mold structure according to claim 1, characterized in that, The cutting edge punch of the upper die is aligned with the cutting edge of the outer ring of the lower die plate; the cutting edge punch of the upper die is aligned with the cutting edge of the lower die.

3. The mold structure according to claim 1, characterized in that, The ejector block is elastically connected to the lower mold via a spring, which drives the ejector block to move upward when the mold opens.

4. The mold structure according to claim 1, characterized in that, The lower mold has an outer ejector plate on at least one side for ejecting waste material at that location.

5. The mold structure according to claim 4, characterized in that, The outer ejector plate is connected to the lower mold via a spring and is used to lift the waste material when the mold opens.

6. The mold structure according to claim 1, characterized in that, The cutting punch of the upper die is aligned with the cutting edge of the lower die to achieve the cutting of the product.

7. The mold structure according to claim 1, characterized in that, The top of the top material block is provided with an arc-shaped transition surface to reduce scratches on the waste material during the top material feeding process.

8. The mold structure according to claim 1, characterized in that, The end of the inclined seat smoothly transitions to the punch press table to prevent waste material from getting stuck during the sliding process.

9. The mold structure according to claim 1, characterized in that, The cutting punch and the corresponding cutting blade are provided at least two times on each side of the product.

Images