Trimming die shared by long and short floors

Abstract

The invention discloses a trimming die shared by long and short floors, and relates to the technical field of dies, the die comprises a lower die holder and an upper die holder located right above the lower die holder, discharge inclined plates are symmetrically fixed to the two sides of the lower die holder, and a plurality of long piece waste cutters, a short piece waste cutter and two long and short piece shared waste cutters are arranged on the lower die holder; a plurality of long piece trimming cutter blocks and movable short piece trimming cutter blocks are arranged on the upper die base, an auxiliary material throwing block is arranged on one side of the long and short piece shared waste cutter, the lower end of the auxiliary material throwing block is fixed to the telescopic end of a first air cylinder, and the first air cylinder is installed on the lower die base. The air cylinder II and the manual valve are used for controlling the air cylinder III and the air cylinder IV, so that the movable short piece trimming cutter block is controlled to stretch out to work or not, the long and short pieces of the produced floor can be automatically switched, the switching mode is simple, and related cost expenditure is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of moulds, in particular to a common trimming mould for long and short floors. Background Art

[0002] With the continuous progress of the automobile industry, customers' demand for diversified vehicle specifications is increasing. In order to meet these demands, OEMs have to launch more models with different specifications of cabs, which in turn leads to diversified demands for long and short floors. At present, there are two main ways to produce long and short floor parts, but both have shortcomings. The first way is to directly develop two sets of molds, one for the production of long parts and the other for the production of short parts. The disadvantage of this method is that an additional set of molds needs to be developed, which leads to increased costs and unnecessary waste. The second way is to develop a set of molds and equip them with two sets of inserts, and realize the switching production of long and short parts by manually disassembling and replacing the inserts. However, this method is more complicated in the switching process, which is not only time-consuming and labor-intensive, but also increases labor costs.

[0003] Based on this, a common trimming mold for long and short floors is now provided, which can eliminate the disadvantages of the existing molds. Summary of the invention

[0004] The object of the present invention is to provide a common trimming mould for long and short floors to solve the problems in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A common trimming mold for long and short floors, comprises a lower mold base and an upper mold base located just above the lower mold base, wherein discharging inclined plates are symmetrically fixed on both sides of the lower mold base, and a plurality of long waste knives, a short waste knife and two common waste knives for long and short pieces are arranged on the lower mold base, the short waste knife is located between the two common waste knives for long and short pieces, the long waste knife is located on the left side of the short waste knife and the common waste knife for long and short pieces, a plurality of long trimming knife blocks and a movable short trimming knife block are arranged on the upper mold base, the long trimming knife block is located on the left side of the movable short trimming knife block, the long trimming knife block corresponds to the long waste knife, the movable short trimming knife block corresponds to the short waste knife and the common waste knife for long and short pieces, an auxiliary throwing block is arranged on one side of the common waste knife for long and short pieces, the lower end of the auxiliary throwing block is fixed to the telescopic end of a cylinder, and the cylinder is installed on the lower mold base.

[0007] Preferably, a nitrogen spring is installed on the lower die base, and the upper end of the nitrogen spring is connected to a movable cutting edge, which is located on one side of the auxiliary throwing block, and the movable cutting edge corresponds to the position of the movable short piece trimming knife block.

[0008] Preferably, a base is fixed to the upper end of the movable short trimming knife block, and the upper end of the base is fixed to the two telescopic ends of the cylinder.

[0009] Preferably, a plurality of support blocks are provided at the upper end of the base, and the support blocks are fixed to the telescopic end of cylinder four. Cylinder four is installed on the upper mold base, and cylinder three is installed on the upper mold base. A safety pin for limiting the base is fixed to the telescopic end of cylinder three, and a manual valve for switching and controlling cylinder three and cylinder four is installed on the upper mold base.

[0010] Preferably, a plurality of large punches and small punches are fixed on the lower die base, and a plurality of large pressure cores and small pressure cores are arranged on the upper die base, each of the large pressure cores corresponds to a large punch, and each of the small pressure cores corresponds to a small punch.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The present invention controls cylinders 3 and 4 through cylinder 2 and a manual valve, thereby controlling whether the movable short piece trimming knife block is extended to work, thereby realizing automatic switching of long and short pieces of floor production, and the switching method is simple, reducing related cost expenditure.

[0013] 2. The present invention cooperates with the movable cutting edge and the auxiliary throwing block. When producing short floor pieces, when the movable short piece trimming knife block compresses the movable cutting edge during operation, the waste will not be cut off. Instead, since the center of gravity of the waste is located outside the cutting edge, this gives the waste a tendency to slide outward. At this time, the auxiliary throwing block controlled by the cylinder starts to assist in pushing the material, ensuring that the waste can slide out smoothly after each stamping, thereby realizing efficient and orderly discharge of the waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention.

[0015] Figure 2 It is a structural schematic diagram of the lower die base of the present invention.

[0016] Figure 3 It is a structural schematic diagram of the upper die base of the present invention.

[0017] Figure 4 It is a structural schematic diagram of the movable short piece trimming knife block of the present invention.

[0018] Figure 5 For the present invention Figure 2 Schematic diagram of the structure at position A in the figure.

[0019] Figure 6 It is a structural schematic diagram of the auxiliary throwing block and the movable cutting edge of the present invention.

[0020] Notes on the accompanying drawings: 1. Lower die seat; 11. Scrap knife for long pieces; 12. Scrap knife for short pieces; 13. Scrap knife for long and short pieces; 14. Auxiliary throwing block; 141. Cylinder one; 15. Movable cutting edge; 151. Nitrogen spring; 16. Large punch; 17. Small punch; 18. Discharging ramp; 2. Upper die seat; 21. Trimming knife block for long pieces; 22. Movable trimming knife block for short pieces; 23. Manual valve; 24. Large pressure core; 25. Small pressure core; 26. Base; 27. Cylinder two; 28. Safety pin; 281. Cylinder three; 29. ​​Support block; 291. Cylinder four. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] In one embodiment, Figure 1-Figure 6 As shown, a common trimming die for long and short floors comprises a lower die base 1 and an upper die base 2 located directly above the lower die base 1, wherein the lower die base 1 is symmetrically fixed with discharge inclined plates 18 on both sides, and the lower die base 1 is provided with a plurality of long waste knives 11, a short waste knife 12 and two long and short common waste knives 13, wherein the short waste knife 12 is located between the two long and short common waste knives 13, and the long waste knife 11 is located on the left side of the short waste knife 12 and the long and short common waste knife 13, and the upper die base 2 is provided with A plurality of long piece trimming knife blocks 21 and movable short piece trimming knife blocks 22, the long piece trimming knife block 21 is located on the left side of the movable short piece trimming knife block 22, the long piece trimming knife block 21 corresponds to the long piece waste knife 11, the movable short piece trimming knife block 22 corresponds to the short piece waste knife 12 and the long and short piece common waste knife 13, an auxiliary throwing block 14 is provided on one side of the long and short piece common waste knife 13, the lower end of the auxiliary throwing block 14 is fixed to the telescopic end of the cylinder 141, and the cylinder 141 is installed on the lower die base 1.

[0023] In this embodiment, when producing long floor pieces, first, when producing long floor pieces, the long floor pieces to be processed are accurately placed on the lower die base 1, ensuring that it is aligned with the long piece waste knife 11 and the long piece trimming knife block 21. The mold is started, and the upper die base 2 begins to move downward. The long piece trimming knife block 21 contacts the edge of the long floor piece and performs a precise trimming operation. As the upper die base 2 continues to press down, the long piece waste knife 11 will cut off the excess edge material, which will then slide down through the discharge ramp 18 for collection and processing. After the trimming is completed, the upper die base 2 will rise back to the initial position to prepare for the next operation.

[0024] In this process, the movable short piece trimming knife block 22 and the auxiliary throwing block 14 (controlled by cylinder 141) will not participate in the production of long floor pieces.

[0025] When producing short floor pieces, the short floor pieces to be processed are accurately placed on the lower die base 1 to ensure that they are aligned with the movable short piece trimming knife block 22 and the long and short piece common waste knife 13. The mold is started and the upper die base 2 begins to move downward. The movable short piece trimming knife block 22 contacts the edge of the short floor piece and performs a precise trimming operation. As the upper die base 2 continues to press down, the movable short piece trimming knife block 22 and the long and short piece common waste knife 13 will cut off the excess edge material. The auxiliary throwing block 14 controlled by the cylinder 141 works to ensure that the waste can slide through the discharge ramp 18 for collection and processing.

[0026] In an optional embodiment, a nitrogen spring 151 is installed on the lower die base 1, and the upper end of the nitrogen spring 151 is connected to a movable cutting edge 15, which is located on one side of the auxiliary throwing block 14, and the movable cutting edge 15 corresponds to the position of the movable short piece trimming knife block 22.

[0027] It should be noted that the nitrogen spring 151 can not only provide a stable and controllable elastic force, so that the active cutting edge 15 can maintain the best working state during the trimming process, but also effectively reduce mechanical wear and extend the service life of the mold. When producing short floor pieces, the active short piece trimming knife block 22 will compress the active cutting edge 15, so as not to cut the waste into two ends. At this time, the center of gravity of the waste is located outside the active cutting edge 15, and the waste has a tendency to slide outward. Then, the auxiliary throwing block 14 controlled by the cylinder 141 works to ensure that the waste can slide through the discharge inclined plate 18 for collection and processing.

[0028] In an optional embodiment, a base 26 is fixed to the upper end of the movable short piece trimming knife block 22 , and the upper end of the base 26 is fixed to the telescopic end of the cylinder 2 27 .

[0029] In an optional embodiment, a plurality of support blocks 29 are provided at the upper end of the base 26, and the support blocks 29 are fixed to the telescopic end of the cylinder four 291. The cylinder four 291 is installed on the upper mold base 2, and the cylinder three 281 is installed on the upper mold base 2. The telescopic end of the cylinder three 281 is fixed with a safety pin 28 for limiting the base 26, and the upper mold base 2 is installed with a manual valve 23 for switching and controlling the cylinder three 281 and the cylinder four 291.

[0030] It should be noted that, in order to ensure the safety of the base 26 during operation, a cylinder 3 281 is installed on the upper die base 2, and a safety pin 28 is fixed at its telescopic end. When the base 26 needs to be fixed, the cylinder 3 281 will drive the safety pin 28 to insert into the corresponding position of the base 26, thereby effectively preventing it from moving or falling off during operation. A manual valve 23 is set on the upper die base 2 for switching the working states of the cylinder 3 281 and the cylinder 4 291, so that it can be easily switched between safety locking and support according to actual needs, greatly improving the working efficiency and flexibility.

[0031] In an optional embodiment, a plurality of large punches 16 and small punches 17 are fixed on the lower die base 1, and a plurality of large pressure cores 24 and small pressure cores 25 are provided on the upper die base 2, each of the large pressure cores 24 corresponds to a large punch 16, and each of the small pressure cores 25 corresponds to a small punch 17.

[0032] It should be noted that when producing long pieces, the large pressing core 24 and the small pressing core 25 work to press the materials at the same time, and the outer long piece trimming knife block 21 works to produce long pieces. When producing short pieces, the large pressing core 24 works to press the materials, and the small pressing core 25 is just closed and does not work.

[0033] The above embodiment discloses a common trimming mold for long and short floorboards, wherein, when producing long floorboards, the manual valve 23 is first switched, the support block 29 controlled by the cylinder four 291 is withdrawn, the cylinder two 27 controls the base 26 and the movable short piece trimming knife block 22 to retract, and the cylinder three 281 controls the safety pin 28 to extend, thereby ensuring that the movable short piece trimming knife block 22 is retracted and does not work.

[0034] The long floor piece to be processed is then precisely placed on the lower die base 1, ensuring that it is aligned with the long piece waste knife 11 and the long piece trimming knife block 21. The mold is started, and the upper die base 2 begins to move downward. The large pressing core 24 and the small pressing core 25 work simultaneously to press the material, and the long piece trimming knife block 21 contacts the edge of the long floor piece to perform precise trimming operations. As the upper die base 2 continues to press down, the long piece waste knife 11 will cut off the excess edge material, and the active cutting edge 15 will cut the waste into two sections, which will then slide down through the discharge ramp 18 for collection and processing. After the trimming is completed, the upper die base 2 will rise back to the initial position to prepare for the next operation.

[0035] When producing short floor pieces, the manual valve 23 is switched, the safety pin 28 controlled by the cylinder three 281 is retracted, the support block 29 controlled by the cylinder four 291 is extended, and the base 26 and the movable short piece trimming knife block 22 controlled by the cylinder two 27 are extended.

[0036] Then, the short floor piece to be processed is precisely placed on the lower die base 1, ensuring that it is aligned with the movable short piece trimming knife block 22 and the long and short piece common waste knife 13. Start the mold, and the upper die base 2 begins to move downward. The large pressure core 24 works to press the material, and the movable short piece trimming knife block 22 contacts the edge of the short floor piece to perform precise trimming operations. As the upper die base 2 continues to press down, the movable short piece trimming knife block 22 and the long and short piece common waste knife 13 will cut off the excess edge material. And the movable short piece trimming knife block 22 will compress the movable cutting edge 15, so as not to cut the waste into two ends, and then the auxiliary throwing block 14 controlled by the cylinder 141 works to ensure that the waste can slide through the discharge inclined plate 18 for collection and processing.

[0037] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A common trimming mold for long and short floors, characterized in that: The invention comprises a lower die base (1) and an upper die base (2) located directly above the lower die base (1), wherein the lower die base (1) is symmetrically fixed with discharge inclined plates (18) on both sides, and the lower die base (1) is provided with a plurality of long waste knives (11), a short waste knife (12) and two long and short common waste knives (13), wherein the short waste knife (12) is located between the two long and short common waste knives (13), and the long waste knife (11) is located on the left side of the short waste knife (12) and the long and short common waste knife (13), and the upper die base (2) is provided with a plurality of long trimming knife blocks. (21) and a movable short piece trimming knife block (22), the long piece trimming knife block (21) is located on the left side of the movable short piece trimming knife block (22), the long piece trimming knife block (21) corresponds to the long piece waste knife (11), the movable short piece trimming knife block (22) corresponds to the short piece waste knife (12) and the long and short piece common waste knife (13), one side of the long and short piece common waste knife (13) is provided with an auxiliary throwing block (14), the lower end of the auxiliary throwing block (14) is fixed to the telescopic end of a cylinder (141), and the cylinder (141) is installed on the lower die base (1).

2. A common trimming mold for long and short floors according to claim 1, characterized in that: A nitrogen spring (151) is installed on the lower die base (1), and the upper end of the nitrogen spring (151) is connected to a movable blade (15) located on one side of the auxiliary throwing block (14). The movable blade (15) corresponds to the position of the movable short piece trimming knife block (22).

3. The common trimming mold for long and short floors according to claim 1, characterized in that: A base (26) is fixed to the upper end of the movable short trimming blade block (22), and the upper end of the base (26) is fixed to the telescopic end of the second cylinder (27).

4. A common trimming mold for long and short floors according to claim 3, characterized in that: A plurality of support blocks (29) are arranged at the upper end of the base (26), and the support blocks (29) are fixed to the telescopic end of the cylinder four (291). The cylinder four (291) is installed on the upper die base (2), and the cylinder three (281) is installed on the upper die base (2). A safety pin (28) for limiting the base (26) is fixed to the telescopic end of the cylinder three (281), and a manual valve (23) for switching and controlling the cylinder three (281) and the cylinder four (291) is installed on the upper die base (2).

5. The common trimming mold for long and short floors according to claim 1, characterized in that: A plurality of large punches (16) and small punches (17) are fixed on the lower die seat (1), and a plurality of large pressure cores (24) and small pressure cores (25) are arranged on the upper die seat (2), each of the large pressure cores (24) corresponds to a large punch (16), and each of the small pressure cores (25) corresponds to a small punch (17).

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