Combined die for manufacturing novel random packing

Abstract

The utility model discloses a combined die for manufacturing novel random packing, which comprises a first upper die, a second upper die and a lower die which are arranged in sequence, the part of the second upper die corresponding to the lower die is a forming die, and the part of the first upper die corresponding to the lower die is a rib breaking die. And a material pressing device is arranged between the forming die and the rib breaking die on the lower die. In the field of manufacturing of novel random packing, the problems that the stroke of a forming die of a combined die is large, the situation that materials are prone to skew and deviate is often caused, and the qualified rate of products is very low are solved, before forming, the material pressing device can tightly press and fix the materials in advance, and the qualified rate of the products is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of mold manufacturing, in particular to a combined mold for manufacturing a new type of random packing. Background Art

[0002] As an important part of the packed tower, packing can be divided into bulk packing and structured packing; bulk packing refers to the packing installed in a random manner. This type of packing is a granular body with a certain appearance structure. According to the shape of the packing, this type of packing can be divided into many categories, including efficient metal random packing. At present, there is a new type of random packing, which has larger voids and larger flux, so the mass transfer efficiency is better. Figure 3 As shown, it is composed of multiple layers of metal ribs. In order to mass-produce this new type of random filler, a combination mold method is often used. The combination mold is generally divided into two parts: a rib breaking mold and a forming mold. The pusher pushes the sheet metal material into the combination mold according to the beat, and the punch press can quickly produce according to the beat.

[0003] At the beginning, the workshop used a whole upper die and lower die for stamping production. Due to the shape of the product, the stroke of the rib breaking die was much smaller than the stroke of the forming die. The two must use different return springs. The return spring of the rib breaking die often breaks due to the large idle stroke, and the mold is also easily damaged.

[0004] Later, people divided the whole upper die into the first upper die and the second upper die, thereby separating the two parts of the upper die with a large difference in stroke. The first upper die is for rib breaking, and the second upper die is for forming. The two parts use different reset springs. This solves the life problem of the reset spring and the die. However, new problems arise:

[0005] Since the stroke of the molding die is large, the product is punched out during molding, and the material often becomes skewed and offset, resulting in a very low product qualification rate.

[0006] Therefore, there is an urgent need for a combined mold for manufacturing a new type of random filler, which can avoid the material from being skewed or offset during molding and breaking, and greatly improve the qualified rate of the product. Summary of the invention

[0007] The utility model aims to provide a combined die for manufacturing a novel random packing material, which can avoid the situation that the material is skewed and offset during forming and cutting, and greatly improve the qualified rate of the product.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined mold for manufacturing a new type of random packing, comprising a first upper mold, a second upper mold and a lower mold arranged in sequence, the second upper mold and the corresponding part on the lower mold are forming molds, the first upper mold and the corresponding part on the lower mold are rib breaking molds, and a material pressing device is arranged on the lower mold between the forming mold and the rib breaking mold.

[0009] Before molding, the pressing device can press and fix the material tightly in advance, so that the material will not be skewed or offset when unloading, thereby greatly improving the product qualification rate.

[0010] Preferably, the pressing device comprises a plurality of cylinders fixed on the lower die and a pressing plate installed on the piston rod of the cylinder. The cylinder can accurately control the rhythm of the pressing plate pressing down.

[0011] Preferably, the first upper die comprises a first fixing plate and a first punching plate, and a plurality of first return springs are provided between the first fixing plate and the first punching plate.

[0012] Preferably, the first punch plate is provided with a punching punch, a rib cutting punch and a rib plasticizing punch in order, and the lower die is provided with a punching lower die, a rib cutting lower die and a rib plasticizing lower die accordingly. The rib breaking process is further divided into punching, rib cutting and rib plasticizing, which can further improve the qualified rate of the product.

[0013] Preferably, the rib breaking punch includes a first rib breaking punch and a second rib breaking punch, and the rib breaking lower die includes a corresponding first rib breaking lower die and a second rib breaking lower die. Rebar breaking is the most important process in the rib breaking process, and dividing it into two steps can better complete this task and improve the product qualification rate.

[0014] Preferably, the second upper die comprises a second fixing plate and a second punching plate, and the second fixing plate and the second punching plate are provided with a plurality of second return springs.

[0015] Preferably, the second punching plate is provided with a forming punch, and the lower die is correspondingly provided with a forming lower die.

[0016] Preferably, the base of the lower die is provided with a plurality of guide holes, and the fixing bases of the first upper die and the second upper die are provided with a plurality of guide columns. During stamping, the relative position between the upper and lower dies is ensured to ensure that a qualified product can be produced.

[0017] Preferably, two rows of material guide wheels are provided on the lower die along the material advancing direction. After the sheet material is pushed into the combined die, the material guide wheels can well limit the deviation of the material.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. Before molding, the pressing device can press and fix the material tightly in advance, so that the material will not be skewed or offset during molding, thereby greatly improving the product qualification rate.

[0020] 2. The process of breaking the tendons is divided into four processes: punching, first tendon breaking, second tendon breaking and plasticizing. This disperses the tasks of each step and greatly improves the product qualification rate.

[0021] 3. The material guide wheel is set to effectively limit the deviation of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A front view of a combined die for manufacturing a novel random packing material as shown in an embodiment;

[0023] Figure 2 It is a top view of the lower mold of the combined mold for manufacturing the new random packing shown in the embodiment;

[0024] Figure 3 It is a three-dimensional schematic diagram, front view and top view of the new random packing.

[0025] In the figure: a first upper die 1, a second upper die 2, a lower die 3, a pressing device 4, a second fixed plate 5, a second punching plate 6, a punching lower die 7, a rib breaking lower die 8, a first fixed plate 9, a first punching plate 10, a first return spring 11, a punching punch 12, a rib breaking punch 13, a second return spring 14, a forming punch 15, a forming lower die 16, a first rib breaking punch 17, a second rib breaking punch 18, a first rib breaking lower die 19, a second rib breaking lower die 20, a guide hole 21, a pressing plate 22, a cylinder 23, a cylinder piston rod 24, a plastic rib punch 25, a plastic rib lower die 26, a guide column 27, and a material guide wheel 28. DETAILED DESCRIPTION

[0026] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0027] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of the relative relationship, without substantial change of the technical content, should also be regarded as the scope of the implementation of the utility model.

[0028] like Figure 1 and Figure 2 As shown, a combined mold for manufacturing a new type of random packing in this embodiment includes a first upper mold 1, a second upper mold 2 and a lower mold 3 arranged in sequence, the second upper mold 2 and its corresponding part on the lower mold 3 are forming molds, the first upper mold 1 and its corresponding part on the lower mold 3 are rib breaking molds, and a pressing device 4 is arranged on the lower mold 3 between the forming mold and the rib breaking mold. Before molding, the pressing device 4 can press and fix the material tightly in advance, so that the material will not be skewed or offset during molding and unloading, thereby greatly improving the qualified rate of the product. The pressing device 4 includes a plurality of cylinders 23 fixed on the lower mold 3 and a pressing plate 22 installed on the cylinder piston rod 24. The number of cylinders in this embodiment is preferably two. The first upper mold 1 includes a first fixed plate 9 and a first punch plate 10, and a plurality of first return springs 11 are arranged between the first fixed plate 9 and the first punch plate 10.

[0029] like Figure 1 and Figure 2 As shown, the first punch plate 10 is provided with a punching punch 12, a rib breaking punch 13 and a plastic rib punch 25 arranged in sequence, and the lower die 3 is provided with a punching lower die 7, a rib breaking lower die 8 and a plastic rib lower die 26. The rib breaking punch 13 includes a first rib breaking punch 17 and a second rib breaking punch 18, and the rib breaking lower die 8 includes a corresponding first rib breaking lower die 19 and a second rib breaking lower die 20. The second upper die 2 includes a second fixed plate 5 and a second punch plate 6, and the second fixed plate 5 and the second punch plate 6 are provided with a plurality of second return springs 14. The second punch plate 6 is provided with a forming punch 15, and the lower die 3 is provided with a forming lower die 16. The rib breaking process is divided into four processes: punching, first rib breaking, second rib breaking and plastic rib, which disperses the tasks of each step and greatly improves the qualified rate of the product.

[0030] like Figure 1 and Figure 2As shown, a plurality of guide holes 21 are provided on the base of the lower die 3, and a plurality of guide posts 27 are provided on the fixing bases of the first upper die 1 and the second upper die 2. The number of guide holes 21 and guide posts 27 is preferably four in this embodiment. Two rows of material guide wheels 28 are provided on the lower die 3 along the material advancing direction, and each row has five material guide wheels 28. The material guide wheels 28 can well limit the deviation of the material.

[0031] Working principle: The sheet metal material is pushed into the combined die. After it is in place, the punch press starts, and the cylinder 23 moves in advance according to the preset program. The material is tightly pressed by the pressing plate 22 and the punch presses down to operate. At this time, each station is working at the same time. Since the pressing plate presses the material in advance, the material will not be skewed or offset due to excessive stroke during forming and cutting, and the final product qualification rate is greatly improved. After forming and cutting, the cylinder 23 immediately moves to lift the pressing plate 22, and the material moves forward according to the preset beat, and then repeat the above process.

[0032] As described above, the utility model provides a combined mold for manufacturing a new type of random packing. Before molding, the material pressing device can press and fix the material tightly in advance, so that the material will not be skewed or offset when the material is discharged during molding, thereby greatly improving the qualified rate of the product. At the same time, the rib breaking process is divided into four processes: punching, first rib breaking, second rib breaking and plastic rib, which disperses the tasks of each step and further improves the qualified rate of the product.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A combined die for manufacturing a novel random packing, comprising a first upper die (1), a second upper die (2) and a lower die (3) arranged in sequence, wherein the second upper die (2) and its corresponding portion on the lower die (3) are forming dies, and the first upper die (1) and its corresponding portion on the lower die (3) are rib breaking dies, characterized in that: A material pressing device (4) is provided on the lower die (3) between the forming die and the rib breaking die.

2. The combined mold for manufacturing a new type of random packing according to claim 1, characterized in that: The material pressing device (4) comprises a plurality of cylinders (23) fixed on the lower die (3) and a pressing plate (22) mounted on the cylinder piston rods (24).

3. The combined mold for manufacturing a new type of random packing according to claim 1, characterized in that: The first upper die (1) comprises a first fixing plate (9) and a first punching plate (10), and a plurality of first return springs (11) are provided between the first fixing plate (9) and the first punching plate (10).

4. The combined mold for manufacturing a new type of random packing according to claim 3, characterized in that: The first punch plate (10) is provided with a punching punch (12), a rib cutting punch (13) and a rib plasticizing punch (25) in sequence, and the lower die (3) is correspondingly provided with a punching lower die (7), a rib cutting lower die (8) and a rib plasticizing lower die (26).

5. The combined mold for manufacturing a new type of random packing according to claim 4, characterized in that: The rib breaking punch (13) comprises a first rib breaking punch (17) and a second rib breaking punch (18), and the rib breaking lower die (8) comprises a corresponding first rib breaking lower die (19) and a second rib breaking lower die (20).

6. The combined mold for manufacturing a new type of random packing according to claim 1, characterized in that: The second upper die (2) comprises a second fixing plate (5) and a second punching plate (6), and the second fixing plate (5) and the second punching plate (6) are provided with a plurality of second return springs (14).

7. The combined mold for manufacturing a new type of random packing according to claim 6, characterized in that: The second punch plate (6) is provided with a forming punch (15), and the lower die (3) is correspondingly provided with a forming lower die (16).

8. The combined mold for manufacturing a new type of random packing according to any one of claims 1 to 7, characterized in that: A plurality of guide holes (21) are provided on the base of the lower die (3), and a plurality of guide columns (27) are provided on the fixing seats of the first upper die (1) and the second upper die (2).

9. The combined mold for manufacturing a new type of random packing according to any one of claims 1 to 7, characterized in that: Two rows of material guide wheels (28) are provided on the lower die (3) along the material advancing direction.

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