CN201154377Y

CN201154377Y - Mold for gradedly pressing plates of super-sized plate heat exchanger

Info

Publication number: CN201154377Y
Application number: CNU2008200004411U
Authority: CN
Inventors: 欧阳振宇; 王晓阳; 高小强
Original assignee: Beijing Sicheng Hansheng Mechanical Manufacturing Co Ltd
Current assignee: Beijing Sicheng Hansheng Mechanical Manufacturing Co Ltd
Priority date: 2008-01-11
Filing date: 2008-01-11
Publication date: 2008-11-26
Anticipated expiration: 2018-01-11

Abstract

The utility model relates to a pressing die for a plate sheet of a plate heat exchanger, in particular to a die for fractionally pressing a plate sheet of an overlarge plate heat exchanger. The die is characterized in that the inner sides of the upper mold core and the lower mold core of a first pressing die at the feed end are respectively provided with a technical convex mold core and a technical concave mold core; the two sides of the upper mold core are provided with slope-shaped convex mold cores which gradually transit and converge from the top part of the technical convex mold core to a datum plane; the front end of the upper mold core of a second pressing die is provided with an elastic positioning cushion. As the original set of die which needs a large tonnage press is improved into the die for sectionally and fractionally pressing, the die for a plate sheet of an overlarge plate heat exchanger after implemented according to the scheme reasonably achieves the goal of producing the overlarge plate sheets by a small tonnage press; besides, under the premise of ensuring the quality, the die for a plate sheet of an overlarge plate heat exchanger realizes the uniform and consistent production with no overlapping and interruption of multiple sets of dies. The die for a plate sheet of an overlarge plate heat exchanger is designed reasonably in structure and has certain meaning to the aspects like saving the investment, etc.

Description

The mould of gradation compacting ultra-large type plate type heat exchanger plate

Technical field

The utility model relates to the compacting tool set of plate type heat exchanger plate, especially suppresses the mould of ultra-large type plate type heat exchanger plate about a kind of gradation.

Background technology

Plate type heat exchanger is as efficient, energy-conservation, compact heat-exchange apparatus, be applied in large quantities in the industrial production, Chinese large-sized chemical industry journey project had been on the increase in recent years, require to use the engineering project of large-scale, ultra-large type, complexity plate type heat exchanger more and more, therefore, the appearance and size of plate type heat exchanger plate also strengthens thereupon, and the die size of so suppressing board-like heat exchanger plate sheet is also increasing thereupon, and the hydraulic press tonnage of requirement also increases exponentially thereupon.

The structure of China's ultra-large type plate type heat exchanger plate shaping dies mainly is made up of guide pillar, guide pin bushing, upper bolster, upper mold core, die shoe, lower mold core and set bolt at present, core rod is fixed on the die holder with set bolt, under the pressure effect of hydraulic press, under the guiding of guide pin bushing and guide pillar, upper and lower die holder passes through upper and lower core rod fixed thereon to press forming of a plate.General 1.0m ²Needed effective pressure was 10000 tons when the plate of heat exchange area was shaped, and the hydraulic press effective pressure of domestic most of plate type heat exchanger manufacturing firm has only about the 6000-8000 ton, and the homemade hydraulic press technology that surpasses 20000 tons is immature.As suppress superhuge plate, and the mould of its punching press also strengthens accordingly, and the pressure ton of hydraulic test increases for needing equally thereupon.And choose the large-tonnage hydraulic test, certainly will increase cost of investment, and limit the extensive use of ultra-large type plate type heat exchanger thus.For under the situation of existing hydraulic test pressure tonnage deficiency, producing up-to-standard ultra-large type plate, adopt the technology of " changing greatly little, gradation calendering " or " one group of mould repeatedly prolongs pressure ", to replace the production technology of " mold uses a large-tonnage hydraulic press " calendaring molding.So, a mold that is about to former once calendaring molding is divided into the mould of some cover gradation compactings.The uniformity consistency of and ripple not overlapping, uninterrupted for the ripple that guarantees plate gradation calendaring molding, the linking section of forward and backward two molds must be provided with the positioning process benchmark of transition gradually.

The utility model content

Originally being the purpose of utility model, is to propose a kind of mould of suppressing ultra-large type plate type heat exchanger plate for being suitable for little tonnage hydraulic press compacting ultra-large type heat exchanger plate.The utility model is to adopt following technical scheme to realize: a kind of mould of gradation compacting ultra-large type plate type heat exchanger plate, comprise upper bolster, upper mold core, die shoe, lower mold core, it is characterized in that the inboard that the upper and lower core rod of compacting tool set for the first time is positioned at feed end is respectively equipped with technology punch insert and technology die plate insert, the both sides of upper mold core are provided with from the top of technology punch insert to the datum level sloping shape punch insert of transition convergence gradually; The upper mold core front end of compacting tool set is provided with the elasticity locating pad for the second time; The upper mold core front end is provided with downward translot of notch or break slot, and the elasticity locating pad is arranged in the groove, and the elasticity locating pad is made by polyurethane rubber; The technology punch insert is made as and the similar raised line of plate ripple section configuration, and the technology die plate insert is made as the groove with the raised line coupling; The forward and backward two ends of upper and lower core rod of gradation compacting tool set are respectively equipped with technology punch insert and technology die plate insert, and the front end of upper mold core also is provided with the elasticity locating pad; The front end that upper mold core is positioned at the technology punch insert is provided with downward translot of notch or break slot, and the elasticity locating pad is arranged in the groove, and the elasticity locating pad is made by polyurethane rubber; The technology punch insert is made as and the similar raised line of plate ripple section configuration, and the technology die plate insert is made as the groove with the raised line coupling.

Press the plate type heat exchanger plate shaping dies that such scheme is implemented, because the former mold of large tonnage pressing machine that needs is improved to the mould that gradation is suppressed, reasonably solved purpose with little tonnage forcing press compacting and production ultra-large type plate, and under the prerequisite of ensuring the quality of products, realized the production of the not overlapping and uninterrupted uniformity consistency of many molds.The utility model reasonable in design has certain meaning to saving aspects such as investment.

Description of drawings

Fig. 1 rolls the vertical section structure schematic diagram of mould for the first time for a kind of embodiment of the utility model;

Fig. 2 rolls the vertical section structure schematic diagram of mold for the second time for a kind of embodiment of the utility model;

Fig. 3 looks up and tool portion cross-sectional schematic for Fig. 1's;

Fig. 4 is the B-B cross-sectional view of Fig. 3;

Fig. 5 is the C-C cross-sectional view of Fig. 3;

Fig. 6 is the D-D cross-sectional view of Fig. 3

The specific embodiment

Be 2m now to suppress a kind of area ²Section is that the mould of the ultra-large type plate type heat exchanger plate of " trapezoidal " ripple is embodiment, is described in further detail.Fig. 1 and Fig. 2 are respectively the longitudinal profile structural representations that rolls mould the first time of present embodiment and roll mould (with the sequencing of calendering workpiece) for the second time, this mould is mainly by upper bolster 3, upper mold core 4, die shoe 5 and lower mold core 6 constitute, in order to guarantee workpiece 8 not overlapping and continual linking in 2 calender lines in 2 molds of front and back, preceding, the linking section of back two molds is provided with necessary technology location benchmark, this technological datum promptly is to be located at a horizontal raised line 41 that rolls upper mould core 4 for the first time and a transverse concave groove 60 being located at lower mold core 6, and raised line 41 mates each other with groove 60.Workpiece 8 is prolonged trapezoidal ripple 810 similar to the workpiece ripple of extrusion after the calendering of raised line 41 that passes through the mould first time and groove 60.Ensuing work step promptly is to continue to finish calendering to workpiece with mould shown in Figure 2, the semi-finished product workpiece of calendaring molding inserted roll in the mould for the second time, and the ripple 810 of calendaring molding is inserted among the groove 61 of lower mold core, in order to guarantee the ripple that roll the second time and to roll the not overlapping of ripple for the first time, uninterrupted and uniformity consistency, upper mold core be provided with in the both sides that are positioned at feed end 44 from the top 451 of raised line 45 to datum level 40 gradually the sloping shape of transition convergence (the sloping height of L section is 441, the stage casing, slope is 442, the slope is 440 the end) punch bar 4510, and be provided with groove 621 with its coupling with the feed end 62 of domatic raised line 4510 corresponding lower mold core, 622 and 623.In addition; for being in the ripple that has been pressed into shape before the spacer dimple 810, protection in calender line is not damaged; the utility model is provided with break slot 43 at the front end of this upper mould core 4; be provided with the rubber-like locating pad 9 that is installed with via screw 7 in the break slot; the elasticity locating pad has good cushioning effect, and locating pad 9 is made by polyurethane rubber.

For the compacting of full welded plate sheet, can adopt the mould of structure as shown in Figure 2, promptly the forward and backward two ends of upper mold core are shaped on positioning

convex strip

41,42 respectively, and the forward and backward

groove

60,61 that is complementary with raised

line

41 and 42 that is shaped on respectively of lower mold core.

Claims

1, a kind of mould of gradation compacting ultra-large type plate type heat exchanger plate, comprise upper bolster, upper mold core, die shoe, lower mold core, it is characterized in that the inboard that the upper and lower core rod of compacting tool set for the first time is positioned at feed end is respectively equipped with technology punch insert and technology die plate insert, the both sides of upper mold core are provided with from the top of technology punch insert to the datum level sloping shape punch insert of transition convergence gradually; The upper mold core front end of compacting tool set is provided with the elasticity locating pad for the second time.

2, by the mould of the described gradation compacting of claim 1 ultra-large type plate type heat exchanger plate, it is characterized in that the upper mold core front end is provided with downward translot of notch or break slot, the elasticity locating pad is arranged in the groove, and the elasticity locating pad is made by polyurethane rubber.

3, by the mould of the described gradation compacting of claim 1 ultra-large type heat exchanger plate, it is characterized in that the technology punch insert is made as and the similar raised line of plate ripple section configuration, the technology die plate insert is made as the groove with the raised line coupling.

4, by the mould of the described gradation compacting of claim 1 ultra-large type plate type heat exchanger plate, it is characterized in that the forward and backward two ends of upper and lower core rod of gradation compacting tool set are respectively equipped with technology punch insert and technology die plate insert, the front end of upper mold core also is provided with the elasticity locating pad.

5, suppress the mould of ultra-large type plate type heat exchanger plate by the described gradation of claim 4, it is characterized in that the front end that upper mold core is positioned at the technology punch insert is provided with downward translot of notch or break slot, the elasticity locating pad is arranged in the groove, and the elasticity locating pad is made by polyurethane rubber.

6, by the mould of the described gradation compacting of claim 4 ultra-large type plate type heat exchanger plate, it is characterized in that the technology punch insert is made as and the similar raised line of plate ripple section configuration, the technology die plate insert is made as the groove with the raised line coupling.