CN211386540U

CN211386540U - Mold for continuously processing spiral radiating fins

Info

Publication number: CN211386540U
Application number: CN201921603673.0U
Authority: CN
Inventors: 董卫
Original assignee: Daye Weipu Heat Exchanger Co ltd
Current assignee: Daye Weipu Heat Exchanger Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-09-01
Anticipated expiration: 2029-09-24

Abstract

A mould for continuously processing spiral radiating fins aims to solve the technical problem that spiral baffling fins cannot be continuously produced and manufactured in the prior art; the die comprises an upper template and a lower template which can be pressed vertically, wherein a cutting module, a forging module and a punching module are sequentially arranged between the upper template and the lower template, and the cutting module comprises a cutter assembly and a cushion block; the forging and pressing module comprises an upper forming pressing die and a lower forming pressing die, and a complete period spiral curved surface for forging and pressing forming is formed on the opposite end surfaces of the upper forming pressing die and the lower forming pressing die; the bearing block is bored to the module that punches a hole, and the lower terminal surface of drill table and the up end of bearing block are the spiral curved surface of the complete cycle of mutually supporting, and the pitch is unanimous with the pitch of moulding-up mould, and the lower terminal surface of drill table is installed in a plurality of pore-forming drill bits, and the up end of bearing block corresponds each pore-forming drill bit and is formed with a nib.

Description

Mold for continuously processing spiral radiating fins

Technical Field

The utility model relates to a heat exchanger equipment manufacturing field, concretely relates to mould for continuous processing spiral fin.

Background

The heat exchanger is a common device in industry, is widely applied to the fields of chemical industry, petrifaction, medicine, metallurgy and the like, and enables energy exchange between two or more fluids. The heat exchanger structural style is various, and wherein shell-and-tube heat exchanger is widely used because characteristics such as simple structure, heat transfer performance are better, design processing technology is ripe and strong adaptability, and traditional bow-shaped baffling board heat exchanger has some shortcomings: shell pass fluid flows in a zigzag mode, the flow field distribution is uneven, and a flow dead zone is easily caused on the leeward side of the arched baffle plate; the shell pass flow resistance is large, and the energy consumption of equipment is large; for media containing impurities and easy to scale, the fouling deposition is easy to cause, and the service cycle of the heat exchanger is shortened; to overcome the problem of flow dead space in conventional segmental baffle heat exchangers, spiral baffle heat exchangers were subsequently developed.

The spiral baffle plate is also called a spiral baffling sheet, and the ideal spiral baffling sheet has a continuous and smooth spiral curved surface; because the restriction of technology among the prior art, generally need follow earlier and cut out single ring piece from the slice substrate, then radially cut out this ring piece rock back, embolia forging and pressing mould in and become the flight, embolia the flight again and embolia the mould that punches and punch, it is very obvious to see out, spiral baffling piece manufacturing process among the prior art can only make respectively of a slice, can not carry out continuous production and manufacturing, in order to realize the purpose of continuous production manufacturing spiral baffling piece, the utility model provides a mould for continuous processing spiral fin.

SUMMERY OF THE UTILITY MODEL

The utility model provides a mould for continuous processing spiral fin to solve the technical problem that can not continuous production and make spiral baffling piece among the prior art.

The utility model provides a scheme as follows of above-mentioned technical problem: a mould for continuously processing spiral radiating fins is used for continuously processing and manufacturing the spiral radiating fins on a base sheet and comprises an upper template and a lower template which can be pressed vertically, a cutting module, a forging module and a punching module are sequentially arranged between the upper template and the lower template,

the cutting module comprises a cutter component arranged on the upper template and a cushion block arranged on the lower template; when the upper die and the lower die are pressed, the cutter assembly is pressed downwards to cut the substrate sheet positioned on the cushion block according to a preset shape;

the forging and pressing module comprises a forming upper pressing die and a forming lower pressing die, wherein the forming upper pressing die is arranged on the upper template, the forming lower pressing die is arranged on the lower template and correspondingly matched with the forming upper pressing die, a complete-period spiral curved surface for forging and pressing is formed on the opposite end surfaces of the forming upper pressing die and the forming lower pressing die, and when the upper template and the lower template are pressed, the forming upper pressing die and the forming lower pressing die forge and press the substrate sheet cut by the cutting module into a spiral curved surface shape;

the punching module comprises a drilling platform arranged on the upper template and a bearing block arranged on the lower template, the lower end surface of the drilling platform and the upper end surface of the bearing block are mutually matched spiral curved surfaces with a complete period, the screw pitch is consistent with that of the forming upper pressing die, the lower end surface of the drilling platform is arranged on a plurality of hole-forming drill bits, and a die hole is formed on the upper end surface of the bearing block corresponding to each hole-forming drill bit; and when the upper template is pressed with the lower template, the drilling platform is pressed downwards, and holes are drilled in the base sheet formed by forging and pressing.

The utility model provides a mould for continuous processing spiral fin is when using, insert the base member sheet between cope match-plate pattern and the lower bolster from cutting module one side, in at every turn cope match-plate pattern and lower bolster pressfitting, with external drive base member sheet to the motion of mould opposite side, preset position on the base member sheet is through the cutting in proper order, form spiral baffling piece after forging and pressing and punching, along with the pressfitting of cope match-plate pattern and lower bolster and the motion of base member sheet, can be incessant in succession form spiral baffling piece on the base member sheet.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic structural diagram of a mold for continuously processing a spiral fin according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a cutting module in the area A of FIG. 1;

fig. 3 is a schematic structural diagram of a cutter assembly in a mold for continuously processing a spiral fin according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of the substrate sheet after being cut according to the embodiment of the present invention;

FIG. 5 is a schematic view of a forging die set shown in the area C of FIG. 1;

FIG. 6 is a schematic diagram of the pre-forming module in the area B of FIG. 1;

FIG. 7 is a schematic view of a punching module in the area D of FIG. 1;

fig. 8 is a schematic structural view of the flanging module in the area E in fig. 1.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

As shown in fig. 1 and 4, the utility model provides a mould 10 for continuous processing spiral fin for continuous processing preparation spiral fin on base sheet 20, this mould 10 includes cope match-plate pattern 11 and the lower bolster 12 that can go up the pressfitting from top to bottom, install cutting module 13 between cope match-plate pattern 11 and the lower bolster 12 in proper order, forge and press module 14, punching die set 15 and three preforming module, for the convenience of the narration, will three preforming module be named first preforming module 16 respectively to forging and pressing module 14's direction along cutting module 13, second preforming module 17 and third preforming module 18.

As shown in fig. 2, 3 and 4, the cutting module 13 includes a cutter assembly 131 mounted to the upper mold plate 11 and a spacer 132 mounted to the lower mold plate 12; when the upper plate 11 is pressed against the lower plate 12, the cutter unit 131 is pressed downward to cut the base sheet 20 positioned on the pad 132 into a predetermined shape.

Specifically, the cutter assembly 131 includes an inner ring cut 1311, a cut 1312, and an outer rim cut 1313 and a cutter seat 1314, the inner ring cut 1311, the cut 1312, and the outer rim cut 1313 all mounted on the cutter seat 1314;

the cutting edge of the inner ring cutting portion 1311 is rounded to cut a center hole 20a in the base sheet 20, and this center hole 20a becomes a spindle hole of a spiral baffle plate after the subsequent processing;

the edge of the notch cut-out portion 1312 is linear, one end of the edge of the notch cut-out portion 1312 is connected to the outer edge of the inner ring cut-out portion 1311, and the other end extends radially outward of the inner ring cut-out portion 1311, and when the upper die plate 11 is pressed against the lower die plate 12, the edge of the notch cut-out portion 1312 cuts a straight notch 20b in the base sheet;

the blade edge of the outer edge cutting part 1313 is semicircular, the outer edge cutting part 1313 is coaxially arranged with the inner ring cutting part 1311, both ends of the semicircle are symmetrically arranged with respect to the notch cutting part 1312, when the upper die plate 11 is pressed against the lower die plate 12, the blade edge of the outer edge cutting part 1313 cuts a semicircular notch 20C coaxially arranged with the central hole 20a on the base sheet, and the base sheet 20 is divided into two pieces, i.e., a first end part 21 and a second end part 22, by the semicircular notch 20C and the central hole 20a, respectively, due to the linear notch 20b, because the positions of both ends of the spiral baffle sheet are most deformed with respect to the initial position thereof during the forging process, and the position of the spiral baffle sheet near the middle is slightly bent upward and downward by a very small amount, the design of the cutting module in this embodiment can ensure that the first end part 21 and the second end part 22 can be well separated during the subsequent forging process, without excessively distorting the entire base sheet.

In the present embodiment, as shown in fig. 1 and 6, the first preforming tool set 16, the second preforming tool set 17 and the third preforming tool set 18 are sequentially arranged between the cutting tool set 13 and the forging tool set 14, and besides the corresponding thread pitches of the three preforming

tool sets

16, 17 and 18 are different, the structural shapes of the three pre-forming

modules

16, 17, and 18 are substantially the same, and for avoiding redundancy, the first pre-forming module is taken as an example below, and the structural shapes of the three

pre-forming modules

16, 17, and 18 are described in detail, the first pre-forming module 16 includes a pre-forming upper die 161 and a pre-forming lower die 162, the pre-forming lower die 162 and the pre-forming upper die 161 are correspondingly disposed in a matching manner, and the screw pitches corresponding to the three

pre-forming modules

16, 17, and 18 are gradually increased, for example, in this embodiment, the base sheet 20 is an aluminum sheet with a thickness of 0.1mm to 0.2mm, and the pitch of the molded spiral baffling sheet is 1.0 mm; the thread pitches corresponding to the three preforming

modules

16, 17 and 18 are respectively 0.2mm, 0.5mm and 0.8 mm.

In this embodiment, the pitch of spiral baffling piece after the shaping is great for base sheet itself, and the bending amplitude is great, makes base sheet progressively forge and press tensile through three preforming module, and the effectual base sheet of having avoidd tears condemned risk because of forging and pressing the too big and twists the range, therefore, in the utility model discloses a in other embodiments, the technical personnel in the field can understand that, when the pitch of spiral baffling piece after the shaping makes the holistic distortion amplitude of base sheet less, can not lead to base sheet overstretching and tearing to base sheet one shot forming, can not use preforming module this moment, and directly adopt forging and pressing module to forge and mould to the base sheet.

As shown in fig. 4 and 5, the forging module 14 includes an upper forming die 141 mounted on the upper die plate 11 and a lower forming die 142 mounted on the lower die plate 12 and correspondingly engaged with the upper forming die 141, a complete-period helical curved surface for forging is formed on opposite end surfaces of the upper forming die 141 and the lower forming die 142, and a pitch of the upper forming die is consistent with a pitch of the helical curved surface after forging, which is 1.0mm in this embodiment.

When the upper die plate 11 is pressed against the lower die plate 12, the forming upper die 141 and the forming lower die 142 forge the substrate sheet 20 cut by the cutting die set 13 into a spirally curved surface shape;

as shown in fig. 7, the punching module 15 includes a drilling platform 151 mounted on the upper mold plate 11 and a bearing block 152 mounted on the lower mold plate 12, a lower end surface of the drilling platform 151 and an upper end surface of the bearing block 152 are mutually matched helical curved surfaces of a complete cycle, and a screw pitch is consistent with a screw pitch of the forming upper mold 141, i.e., 1.0mm, a lower end surface of the drilling platform 151 is mounted on a plurality of hole forming drills 153, and an upper end surface of the bearing block 152 is formed with a mold hole 15a corresponding to each hole forming drill 153.

When the upper template 11 is pressed with the lower template 12, the drilling platform 151 is pressed downwards to drill holes on the base sheet material formed by forging and pressing, and thus the spiral baffling sheet is basically manufactured.

It can be understood that, when the drilling platform pushed down, pore-forming drill bit 153 can extrude the periphery in hole with unnecessary sheet at the in-process of pore-forming, forms the turn-ups, because the effort between pore-forming drill bit 153 and the organism sheet is complete evenly distributed, the turn-ups that consequently forms are not of uniform length, influences the atress when using of spiral baffling piece.

Therefore, in this embodiment, as shown in fig. 1 and 8, the mold 10 further includes a flanging module 19, the flanging module 19 is installed on one side of the punching module 15 away from the forging module 14, the flanging module 19 includes an upper flanging block 191 installed on the upper die plate 11 and a lower flanging block 192 installed on the lower die plate 12, a lower end face of the upper flanging block 191 and an upper end face of the lower flanging block 192 are mutually matched helical curved surfaces with a complete cycle, and a screw pitch is consistent with that of the forming upper die 141, that is, 1.0mm, a flanging head 193 is installed on a lower end face of the upper flanging block 191, a curved surface for flanging is formed at one end of the flanging head 193 facing the lower flanging block 192, and a flanging hole 19a with a consistent depth is formed at each flanging head 193 corresponding to the lower flanging block 192.

It should be understood that the flanging heads 193 and the hole-forming drill bits 153 are in one-to-one correspondence on the respective spiral curved surfaces, and the uniform depth of the flanging holes 19a can ensure that the length of the flanging formed after processing is consistent, even if the flanging on the periphery of each drilling hole is basically stressed uniformly when the spiral baffle is used.

More preferably, in the present embodiment, the depth of the burring hole 19a is 1.0 mm; the turn-ups length after handling like this is unanimous with the pitch length of spiral baffling piece, when installation spiral baffling piece, with all spiral baffling piece centre bores with the drilling adjust the back well, guarantees through the turn-ups butt between the adjacent spiral baffling piece, just can make and form continuous helical curved surface between a plurality of spiral baffling pieces.

When the die 10 for continuously processing the spiral radiating fins is used, the base sheet 20 is inserted between the upper die plate 11 and the lower die plate 12 from one side of the cutting die set 13, when the upper die plate 11 and the lower die plate 12 are pressed, the base sheet is driven to move to the other side of the die by external force, two ends of the base sheet can be respectively connected to two transmission shafts which rotate synchronously, and the base sheet is driven to move by the rotation of the transmission shafts; the moving speed of the base sheet is preset to enable the base sheet to move at a constant speed, the cut base sheet 20 is guaranteed to reach the position of the preforming module or the position of the forming module when the base sheet is pressed down in the next die, therefore, the spiral baffling sheet is formed at the determined position of the base sheet after cutting, forging and pressing, punching and flanging are sequentially carried out, the spiral baffling sheet can be continuously and uninterruptedly formed on the base sheet along with the pressing of the upper template and the lower template and the movement of the base sheet, and then the formed spiral baffling sheet is completely cut in the subsequent process.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the utility model can be smoothly implemented by the ordinary technicians in the industry according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims

1. A mould for continuously processing spiral radiating fins is used for continuously processing and manufacturing the spiral radiating fins on a base sheet and comprises an upper template and a lower template which can be pressed vertically, and is characterized in that a cutting module, a forging module and a punching module are sequentially arranged between the upper template and the lower template,

the cutting module comprises a cutter component arranged on the upper template and a cushion block arranged on the lower template; when the upper template is pressed with the lower template, the cutter assembly is pressed downwards, and the substrate sheet positioned on the cushion block is cut according to a preset shape;

the forging and pressing module comprises a forming upper pressing die and a forming lower pressing die, wherein the forming upper pressing die is arranged on the upper template, the forming lower pressing die is arranged on the lower template and correspondingly matched with the forming upper pressing die, a complete periodic spiral curved surface for forging and pressing is formed on the opposite end surfaces of the forming upper pressing die and the forming lower pressing die, the pitch of the forming upper pressing die is consistent with that of the spiral curved surface after forging and pressing, and when the upper template and the lower template are pressed, the forming upper pressing die and the forming lower pressing die forge and press the substrate sheet cut by the cutting module into a spiral curved surface shape;

2. The die for continuously forming a helical fin as set forth in claim 1, wherein said cutter assembly includes an inner ring cutting portion, a notch cutting portion, an outer edge cutting portion, and a cutter seat, said inner ring cutting portion, said notch cutting portion, and said outer edge cutting portion being mounted on said cutter seat, a blade edge of said inner ring cutting portion being rounded for cutting a center hole in said base sheet; the cutting edge of incision cutting part is the linear type, the cutting edge one end of incision cutting part with the outward flange of inner ring cutting part links to each other, and the other end is followed the radial outside lateral extension of inner ring cutting part, the cutting edge of outer fringe cutting part is semi-circular, outer fringe cutting part with the coaxial setting of inner ring cutting part, semi-circular both ends for incision cutting part symmetry sets up.

3. The die set for continuously forming a helical fin as claimed in claim 1, further comprising a pre-forming die set installed between the cutting die set and the forging die set, the pre-forming die set comprising a pre-forming upper die and a pre-forming lower die, the pre-forming upper die and the pre-forming upper die being correspondingly matched, and the pitch of the pre-forming upper die being smaller than that of the forming upper die.

4. The die for continuously forming a helical fin as claimed in claim 3, wherein the number of the pre-forming die sets is two or more, two or more pre-forming die sets are arranged in sequence between the cutting die set and the forging die set, and the pitch of the pre-forming die sets increases gradually in a direction from the cutting die set to the forging die set.

5. The mold for continuously processing the spiral radiating fin according to claim 1, further comprising a flanging module, wherein the flanging module is installed on one side of the punching module, which is far away from the forging module, the flanging module comprises an upper flanging block installed on the upper mold plate and a lower flanging block installed on the lower mold plate, the lower end face of the upper flanging block and the upper end face of the lower flanging block are mutually matched spiral curved surfaces with a complete period, the thread pitch of the upper flanging block is consistent with that of the forming upper pressing mold, the lower end face of the upper flanging block is provided with a flanging head, one end of the flanging head, which faces the upper flanging block, is provided with a curved surface for flanging, and the lower flanging block is provided with flanging holes with consistent depth corresponding to each flanging head.