A faller die scrap slitting device

Abstract

The utility model relates to a metal sheet slitting die, more specifically, it relates to a falling piece mould waste slitting device, and aims to solve the problem that the existing technology cannot finely slit large-size waste. Its technical scheme points are: including upper die, lower die and guide pillar, being equipped with a plurality of product male die on the upper die, being equipped with product female die on the lower die, being equipped with two side edge upper die cutting knives and a plurality of upper die cutting knife groups on the upper die; the upper die cutting knife group is sequentially composed of first upper die cutting knife, second upper die cutting knife and third upper die cutting knife; being equipped with two side edge lower die cutting knives corresponding with the side edge upper die cutting knife and a plurality of lower die cutting knife groups corresponding with the upper die cutting knife group on the lower die, and the lower die cutting knife group includes first lower die cutting knife corresponding with the first upper die cutting knife, second lower die cutting knife corresponding with the second upper die cutting knife and third lower die cutting knife corresponding with the third upper die cutting knife.

Description

Technical Field

[0001] This utility model relates to a metal sheet cutting mold, and more specifically, to a waste material cutting device for a sheet dropping mold. Background Technology

[0002] In the lithium battery manufacturing process, multiple metal structural components are formed using stamping dies, which continuously generate a large amount of metal waste. To ensure the orderly collection of waste and the continuous operation of the production line, most existing blanking dies are equipped with simple cutting devices to cut off the waste generated during stamping.

[0003] To adapt to the demands of large-scale production and improve stamping capacity and efficiency, stamping dies in the industry are gradually upgrading to multi-row, multi-station structures. The increase in the number of die rows directly leads to a significant increase in the width of the processed material strip, resulting in a substantial increase in the overall size of the scrap generated during stamping. (See also...) Figure 3 Existing slitting devices can only perform a simple single cut in the width direction of waste materials, and the slitting method is limited, making it impossible to effectively subdivide and cut large-width waste materials.

[0004] Large-sized waste materials are prone to deformation during production, frequently becoming stuck inside stamping equipment and conveying mechanisms. This not only requires machine shutdown for manual cleaning, severely reducing production continuity and efficiency, but also easily causes equipment wear. Furthermore, insufficiently slit large-sized waste materials occupy storage space, making sorting, transfer, and subsequent recycling difficult, significantly increasing production and maintenance costs as well as labor costs, and making it difficult to meet the high-efficiency production demands of current multi-row wide-width molds. Based on the aforementioned shortcomings of existing technologies, there is an urgent need to develop a refined slitting device suitable for large-sized waste materials to solve these technical problems. Utility Model Content

[0005] This invention provides a waste material slitting device for die-cutting, which solves the problem that existing slitting devices cannot perform fine slitting of large-sized waste materials.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a waste material cutting device for a die-cutting mold, comprising an upper mold, a lower mold, and guide pillars. The upper mold is provided with a plurality of product punches, and the lower mold is provided with product dies corresponding to the product punches one by one. The waste material moves longitudinally from front to back. The upper mold is provided with two side upper mold cutting blades and a plurality of upper mold cutting blade groups on the rear side of the product punches. The upper mold cutting blade groups are distributed within the width range defined by the two side upper mold cutting blades. The upper mold cutting blade groups are sequentially composed of a first upper mold cutting blade, a second upper mold cutting blade, and a third upper mold cutting blade. The lower mold is provided with two side lower mold cutting blades corresponding to the side upper mold cutting blades and a plurality of lower mold cutting blade groups corresponding to the upper mold cutting blade groups. The lower mold cutting blade groups include a first lower mold cutting blade corresponding to the first upper mold cutting blade, a second lower mold cutting blade corresponding to the second upper mold cutting blade, and a third lower mold cutting blade corresponding to the third upper mold cutting blade.

[0007] The upper die, lower die, and guide post in this invention constitute a conventional blanking die. The specific structure of the blanking die is conventional technology and will not be described in detail here. This invention has a side upper die cutting blade, a first upper die cutting blade, a second upper die cutting blade, and a third upper die cutting blade on the rear side of the upper die. Similarly, a side lower die cutting blade, a first lower die cutting blade, a second lower die cutting blade, and a third lower die cutting blade are located on the rear side of the lower die. Any upper die cutting blade moves up and down with the upper die, while any lower die cutting blade is fixed to the lower die. Each punching action involves a single cut by the upper and lower die cutting blades. After multiple punching operations, the metal sheet has several spaced punching holes. The waste edges between these punching holes keep the waste material intact, creating a multi-mesh structure. Therefore, the side upper die cutting knife and the side lower die cutting knife in this utility model are used to cut the two sides of the waste material, and the upper die cutting knife group and the lower die cutting knife group are used to cut the waste edge between adjacent punching holes, breaking the mesh structure of the waste material, thereby reducing the size and fragmenting the waste material.

[0008] Furthermore, each cutting blade consists of a blade holder and a cutting edge. To enhance the wear resistance and hardness of the cutting edge material, a partial alloy block solution can be used for the cutting edge, or the entire cutting blade can be made of alloy material. The waste edges on the scrap are curved, so some areas tend to have a transverse distribution while others tend to have a longitudinal distribution. Therefore, the cutting edges of the second upper die cutting blade and the second lower die cutting blade are both longitudinally distributed, while the cutting edges of the remaining cutting blades are transversely distributed. The second upper die cutting blade and the second lower die cutting blade are used to cut the waste edges that tend to have a transverse distribution, while the remaining cutting blades are used to cut the waste edges that tend to have a longitudinal distribution.

[0009] Furthermore, the cutting edges on the upper and lower die cutting blades need to be aligned at a certain distance to ensure reliable cutting. Since the cutting blades are fixed to the upper or lower die by a tool holder, if the fixed position of the tool holder is made non-adjustable, the requirements for machining and assembly precision will be significantly increased, thereby increasing production difficulty and cost. Therefore, at least one of the side upper die cutting blades and the side lower die cutting blades has a corresponding tool holder with a position adjuster; at least one of the first upper die cutting blades and the first lower die cutting blades has a corresponding tool holder with a position adjuster; at least one of the second upper die cutting blades and the second lower die cutting blades has a corresponding tool holder with a position adjuster; and at least one of the third upper die cutting blades and the third lower die cutting blades has a corresponding tool holder with a position adjuster. The position adjuster is fixed to the lower die or the upper die.

[0010] Furthermore, the position adjuster includes a positioning plate fixed relative to the lower die or the upper die and two adjusting studs screwed through and screwed onto the positioning plate; the tool holder is provided with a plurality of through holes, and the lower die or the upper die is provided with corresponding threaded holes, and a bolt screwed into the through hole is provided, which is screwed into the threaded hole, and the diameter of the through hole is larger than the outer diameter of the bolt; the two adjusting studs abut against the corresponding tool holders.

[0011] Furthermore, the lower mold is provided with a plurality of first clearance grooves and a plurality of second clearance grooves. The first clearance grooves correspond one-to-one with the first lower mold cutting blades and are located behind the first lower mold cutting blades. The second clearance grooves correspond one-to-one with the third lower mold cutting blades and are located behind the third lower mold cutting blades. The second lower mold cutting blades are located between the first clearance grooves and the second clearance grooves.

[0012] Furthermore, the position adjuster is installed on the side wall of the second clearance groove, and the position adjuster is directly opposite the second lower die cutting blade; the position adjuster is also provided on the side wall of the upper die on the rear side, and the position adjuster is directly opposite the first upper die cutting blade and the third upper die cutting blade.

[0013] Furthermore, a waste trough is provided on the side wall behind the lower die. The waste trough is composed of an inclined base plate and baffles located on both sides of the base plate. The width of the waste trough covers the distribution range of all the lower die cutting blades.

[0014] According to the above specific scheme, the method of using the position adjuster is as follows: First, use bolts to connect the cutter holder to the corresponding threaded hole on the lower or upper die. Rotate the bolts in low torque mode. At this time, the cutter holder is in contact with the lower or upper die and the two are fixed, but not stable. Since the diameter of the through hole is larger than the outer diameter of the bolt, the cutter holder still has a certain displacement space. Then, move the cutter holder to the side with the largest cutting gap. Then, push the cutter holder by rotating the two adjusting studs to reduce the cutting gap. The two adjusting studs need to be rotated alternately, about half a turn each time, until the appropriate gap is adjusted. Finally, use high torque mode to tighten the bolt completely, and the cutter holder is completely fixed.

[0015] In summary, this utility model has the following beneficial effects: 1. The upper and lower side die cutting blades are used to cut the two sides of the waste material. The upper die cutting blade group and the lower die cutting blade group are used to cut the waste edges between adjacent punch holes, breaking the mesh structure of the waste material, thereby reducing the size and fragmenting the waste material. 2. By setting a position adjuster to fine-tune the cutting gap, the requirements for machining and assembly accuracy are reduced, and the difficulty of production and assembly is simplified. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure after the metal sheet has been punched. Figure 2 This is a diagram of the waste material after slitting according to this utility model; Figure 3 This is a diagram of the waste material after cutting by existing equipment; Figure 4 This is a structural diagram of the upper mold and the stripper plate; Figure 5 This is a schematic diagram of the lower mold and the metal sheet. Figure 6 This is a side view of the present invention; Figure 7 for Figure 4 Enlarged view of part A; Figure 8 for Figure 6 Enlarged view of part B; Figure 9 This is a schematic diagram of the lower die cutting blade. Figure 10 This is a diagram showing the positional relationship between the lower die cutting blade and the upper die cutting blade in their aligned state. Figure 11 This is a front view of the side lower die cutter, the first lower die cutter, or the third lower die cutter; Figure 12 A side view of the lower die cutter, the first lower die cutter, or the third lower die cutter; Figure 13This is a front view of the second lower die cutting blade; Figure 14 This is a side view of the second lower die cutting blade; Figure 15 This is a front view of the side upper die cutting blade; Figure 16 This is a side view of the upper die cutting blade. Figure 17 This is a front view of either the first or third upper die cutting blade. Figure 18 This is a side view of the first or third upper die cutting blade. Figure 19 This is a schematic diagram of the cutting blade and position adjuster.

[0017] Explanation of reference numerals in the attached figures: 10. Upper die; 20. Stripper plate; 30. Lower die; 31. First clearance groove; 32. Second clearance groove; 40. Guide post; 50. Product punch; 60. Product die; 701. Side upper die cutter; 702. First upper die cutter; 703. Second upper die cutter; 704. Third upper die cutter; 705. Side lower die cutter; 706. First lower die cutter; 707. Second lower die cutter; 708. Third lower die cutter; 710. Tool holder; 711. Through hole; 712. Bolt; 720. Cutting edge; 730. Alloy block; 80. Metal sheet; 81. Punching hole; 82. Scrap edge; 90. Position adjuster; 91. Positioning plate; 92. Adjusting stud; 100. Scrap trough; 110. Base plate; 120. Baffle. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0019] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The present invention will now be described in detail with reference to the accompanying drawings.

[0022] Example: See Figure 4 , Figure 5 , Figure 6 and Figure 10 A waste material cutting device for a die-cutting mold includes an upper mold 10, a stripper plate 20, a lower mold 30, and guide pillars 40. The upper mold 10 has nine product punches 50 arranged in two rows, with four in the front row and five in the back row. The product punches 50 in the front row are staggered from those in the back row. The lower mold 30 has product dies 60 corresponding to each of the product punches 50. Waste material moves longitudinally from front to back. The upper mold 10, located behind the product punches 50, has two side upper mold cutting blades 701 and four upper mold cutting blade groups distributed on the two side upper mold cutting blades. Within the width range defined by the cutting blade 701; the upper die cutting blade group is composed of a first upper die cutting blade 702, a second upper die cutting blade 703, and a third upper die cutting blade 704 in sequence; the lower die 30 is provided with two side lower die cutting blades 705 corresponding to the side upper die cutting blades 701 and four lower die cutting blade groups corresponding to the upper die cutting blade group. The lower die cutting blade group includes a first lower die cutting blade 706 corresponding to the first upper die cutting blade 702, a second lower die cutting blade 707 corresponding to the second upper die cutting blade 703, and a third lower die cutting blade 708 corresponding to the third upper die cutting blade 704.

[0023] See Figure 1 , Figure 2 , Figure 4 and Figure 5In this embodiment, the upper mold 10, the stripper plate 20, the lower mold 30, and the guide post 40 constitute a conventional blanking mold. The specific structure of the blanking mold is a conventional technology and will not be described in detail here. This utility model provides a side upper die cutter 701, a first upper die cutter 702, a second upper die cutter 703, and a third upper die cutter 704 on the rear side of the upper die 10, and a side lower die cutter 705, a first lower die cutter 706, a second lower die cutter 707, and a third lower die cutter 708 on the rear side of the lower die 30. The side upper die cutter 701, the first upper die cutter 702, the second upper die cutter 703, and the third upper die cutter 704 move up and down with the upper die 10, while the side lower die cutter 705, the first lower die cutter 706, the second lower die cutter 707, and the third lower die cutter 708 are fixedly set. Each time the upper die 10 and the lower die 30 perform a punching action, they will be cut simultaneously. After multiple punching processes, the metal sheet 80 has several spaced punching holes 81. The waste edges 82 between these punching holes 81 keep the waste material intact, giving it a multi-mesh structure. Therefore, in this embodiment, the upper side die cutting blade 701 and the lower side die cutting blade 705 are used to cut the two sides of the waste material. The upper die cutting blade group and the lower die cutting blade group are used to cut the waste edges 82 between adjacent punching holes 81, breaking the mesh structure of the waste material, thereby reducing its size and fragmenting it.

[0024] For details, see Figures 11 to 18 Each cutting blade consists of a blade holder 710 and a cutting edge 720. To enhance the wear resistance and hardness of the cutting edge 720, the side lower die cutting blade 705, the first lower die cutting blade 706, and the third lower die cutting blade 708 are made of an integral alloy material. The cutting edges 720 of the remaining cutting blades can be made of locally fixed alloy blocks 730. The waste edges 82 on the scrap are curved, so some waste edges 82 tend to be distributed laterally, while others tend to be distributed longitudinally. Therefore, the cutting edges 720 of the second upper die cutting blade 703 and the second lower die cutting blade 707 are longitudinally distributed, while the cutting edges 720 of the side upper die cutting blade 701, the first upper die cutting blade 702, the third upper die cutting blade 704, the side lower die cutting blade 705, the first lower die cutting blade 706, and the third lower die cutting blade 708 are all laterally distributed. The second upper die cutting blade 703 and the second lower die cutting blade 707 are used to cut off the waste edges 82 that tend to be distributed laterally. The side upper die cutting blade 701, the first upper die cutting blade 702, the third upper die cutting blade 704, the side lower die cutting blade 705, the first lower die cutting blade 706, and the third lower die cutting blade 708 are used to cut off the waste edges 82 that tend to be distributed longitudinally.

[0025] For details, see Figure 7 , Figure 8 and Figure 9Common punching processes require the cutting edges 720 to be spaced at a certain interval for reliable cutting. The single-sided spacing c = material thickness t × 4% to 8%. The spacing between the cutting edges 720 needs to be achieved by moving the tool holder 710. The tool holder 710 is fixed on the upper die 10 or the lower die 30. If the fixed position of the tool holder 710 is set to be non-adjustable, the requirements for machining accuracy and installation accuracy will be significantly increased, thereby increasing the production difficulty and cost. Therefore, at least one of the side upper die cutting blade 701 and the side lower die cutting blade 705 has a corresponding tool holder 710 with a position adjuster 90; at least one of the first upper die cutting blade 702 and the first lower die cutting blade 706 has a corresponding tool holder 710 with a position adjuster 90; at least one of the second upper die cutting blade 703 and the second lower die cutting blade 707 has a corresponding tool holder 710 with a position adjuster 90; at least one of the third upper die cutting blade 704 and the third lower die cutting blade 708 has a corresponding tool holder 710 with a position adjuster 90; the position adjuster 90 is fixed on the lower die 30 or the upper die 10.

[0026] For details, see Figure 19 The position adjuster 90 includes a positioning plate 91 fixed relative to the lower die 30 or the upper die 10 and two adjusting studs 92 threaded through and screwed onto the positioning plate 91; the tool holder 710 is provided with two or three through holes 711, and the lower die 30 or the upper die 10 is provided with corresponding threaded holes. A bolt 712 threaded through and screwed into the threaded hole 711 is provided, and the diameter of the through hole 711 is larger than the outer diameter of the bolt 712; the two adjusting studs 92 abut against the corresponding tool holder 710.

[0027] See Figure 16 According to the above specific scheme, the position adjuster 90 is used as follows: First, connect the cutter holder 710 to the corresponding threaded hole on the lower die 30 or upper die 10 using bolt 712. Rotate bolt 712 in low torque mode. At this time, the cutter holder 710 is in contact with the lower die 30 or upper die 10, and the two are fixed, but not stable. Since the diameter of the through hole 711 is larger than the outer diameter of bolt 712, the cutter holder 710 still has a certain displacement space. Then, move the cutter holder 710 to the side with the largest cutting gap. Then, push the cutter holder 710 by rotating the two adjusting studs 92 to reduce the cutting gap. The two adjusting studs 92 need to be rotated alternately, about half a turn each time, until the appropriate gap is adjusted. Finally, tighten bolt 712 completely in high torque mode to completely fix the cutter holder 710. After adjustment, the position adjuster 90 can be removed.

[0028] For details, see Figure 9The lower die 30 is provided with four first clearance grooves 31 and four second clearance grooves 32. The first clearance grooves 31 correspond one-to-one with the first lower die cutting blade 706 and are located behind it. The second clearance grooves 32 correspond one-to-one with the third lower die cutting blade 708 and are located behind it. The second lower die cutting blade 707 is located between the first clearance grooves 31 and the second clearance grooves 32. The first clearance grooves 31 and the second clearance grooves 32 are rectangular in shape and have an open structure on the rear side. The purpose of this arrangement is mainly to provide space for the waste material, so that the waste material after cutting can fall off smoothly to the greatest extent.

[0029] For details, see Figure 8 and Figure 19 A positioning plate 91 is installed on the side wall of the second clearance groove 32 near the second lower die cutter 707, and a corresponding position adjuster 90 is provided facing the second lower die cutter 707. It should be noted that a certain space needs to be left between the position adjuster 90 and the corresponding third lower die cutter 708 to avoid the third upper die cutter 704. The upper die 10 is provided with position adjusters 90 facing the first upper die cutter 702 and the third upper die cutter 704 respectively, and the corresponding positioning plate 91 is installed and fixed on the rear side wall of the upper die 10. The positioning plate 91 is fixedly connected to the upper die 10 or the lower die 30 by screws.

[0030] For details, see Figure 6 The lower die 30 is also provided with a waste trough 100 on the side wall behind it. The waste trough 100 is composed of an inclined base plate 110 and baffles 120 located on both sides of the base plate 110. The width of the waste trough 100 covers the distribution range of all the lower die cutting blades.

[0031] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A waste material cutting device for a die-cutting mold, comprising an upper mold (10), a lower mold (30), and guide pillars (40), wherein the upper mold (10) is provided with a plurality of product punches (50), and the lower mold (30) is provided with product dies (60) corresponding one-to-one with the product punches (50), and the waste material moves longitudinally from front to back, characterized in that: The upper mold (10) is provided with two side upper mold cutting blades (701) and several upper mold cutting blade groups on the rear side of the product punch (50). The upper mold cutting blade groups are distributed within the width range defined by the two side upper mold cutting blades (701). The upper mold cutting blade groups are composed of a first upper mold cutting blade (702), a second upper mold cutting blade (703), and a third upper mold cutting blade (704) in sequence. The lower mold (30) is provided with two side lower mold cutting blades (705) corresponding to the side upper mold cutting blades (701) and several lower mold cutting blade groups corresponding to the upper mold cutting blade groups. The lower mold cutting blade groups include a first lower mold cutting blade (706) corresponding to the first upper mold cutting blade (702), a second lower mold cutting blade (707) corresponding to the second upper mold cutting blade (703), and a third lower mold cutting blade (708) corresponding to the third upper mold cutting blade (704).

2. The waste material cutting device for sheet casting as described in claim 1, characterized in that: Each cutting blade consists of a blade holder (710) and a cutting edge (720); the cutting edges (720) of the second upper die cutting blade (703) and the second lower die cutting blade (707) are longitudinally distributed, while the cutting edges (720) of the remaining cutting blades are transversely distributed.

3. The waste material cutting device for sheet casting as described in claim 2, characterized in that: At least one of the side upper die cutting blade (701) and the side lower die cutting blade (705) has a corresponding blade holder (710) with a position adjuster (90); at least one of the first upper die cutting blade (702) and the first lower die cutting blade (706) has a corresponding blade holder (710) with a position adjuster (90); at least one of the second upper die cutting blade (703) and the second lower die cutting blade (707) has a corresponding blade holder (710) with a position adjuster (90); at least one of the third upper die cutting blade (704) and the third lower die cutting blade (708) has a corresponding blade holder (710) with a position adjuster (90); the position adjuster (90) is fixed on the lower die (30) or the upper die (10).

4. The waste material cutting device for sheet casting as described in claim 3, characterized in that: The position adjuster (90) includes a positioning plate (91) fixed relative to the lower mold (30) or the upper mold (10) and two adjusting studs (92) screwed through the positioning plate (91); the tool holder (710) is provided with a plurality of through holes (711), and the lower mold (30) or the upper mold (10) is provided with corresponding threaded holes. A bolt (712) screwed into the through hole (711) is provided, and the diameter of the through hole (711) is larger than the outer diameter of the bolt (712); the two adjusting studs (92) abut against the corresponding tool holder (710).

5. The waste material cutting device for sheet casting molds according to claim 4, characterized in that: The lower mold (30) is provided with a plurality of first clearance grooves (31) and a plurality of second clearance grooves (32). The first clearance grooves (31) correspond one-to-one with the first lower mold cutting blade (706) and are located behind the first lower mold cutting blade (706). The second clearance grooves (32) correspond one-to-one with the third lower mold cutting blade (708) and are located behind the third lower mold cutting blade (708). The second lower mold cutting blade (707) is located between the first clearance grooves (31) and the second clearance grooves (32).

6. The waste material cutting device for sheet casting as described in claim 5, characterized in that: The position adjuster (90) is installed on the side wall of the second clearance groove (32), and the position adjuster (90) is directly opposite to the second lower die cutter (707); the position adjuster (90) is also provided on the side wall of the upper die (10) on the rear side, and the position adjuster (90) is directly opposite to the first upper die cutter (702) and the third upper die cutter (704).

7. The waste material cutting device for sheet casting as described in claim 5, characterized in that: The lower mold (30) is also provided with a waste trough (100) on the side wall behind it. The waste trough (100) is composed of an inclined base plate (110) and baffles (120) located on both sides of the base plate (110). The width of the waste trough (100) covers the distribution range of all the lower mold cutting blades.

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