CN112091112A - Plate sheet forming equipment of brazing plate type heat exchanger - Google Patents
Plate sheet forming equipment of brazing plate type heat exchanger Download PDFInfo
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- CN112091112A CN112091112A CN202010942618.5A CN202010942618A CN112091112A CN 112091112 A CN112091112 A CN 112091112A CN 202010942618 A CN202010942618 A CN 202010942618A CN 112091112 A CN112091112 A CN 112091112A
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- die
- plate
- stamping
- punching
- heat exchanger
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/16—Unwinding or uncoiling
- B21C47/18—Unwinding or uncoiling from reels or drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/14—Dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention relates to the technical field of plate heat exchanger processing, in particular to a sheet bar forming device of a brazed plate heat exchanger, which is applied to punching a material belt into sheet bars and comprises the following components: the bottom end of one side of the working surface of the punching machine is provided with a material taking port communicated with the outer side; the continuous stamping die comprises a die set and a stamping and cutting die, wherein the die set is arranged on the working surface of a stamping machine, and a punching die, a first stamping die, a second stamping die and the stamping and cutting die are sequentially arranged in the die set along the material feeding direction; the elastic material supporting frames are arranged at the feeding and discharging ends of the continuous stamping die; the metal flattening machine is arranged on the outer side of the elastic material supporting frame positioned at the feeding end of the continuous stamping die; the automatic material receiving assembly is arranged on an elastic material supporting frame positioned at the discharging end of the continuous stamping die; unreel the subassembly and set up in the elasticity holds in the palm the work or material rest outside, the device security and work efficiency height.
Description
Technical Field
The invention relates to the technical field of plate heat exchanger processing, in particular to plate sheet forming equipment of a brazed plate heat exchanger.
Background
The plate heat exchanger is a high-efficiency heat exchanger formed by stacking a series of corrugated metal sheets. The plates have passages therebetween and exchange heat with the plates through the plates. Compared with the conventional shell-and-tube heat exchanger, the heat exchanger has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small occupied area, convenience in installation and cleaning, wide application, long service life and the like. Therefore, the plate heat exchanger is widely applied to industries such as metallurgy, petroleum, chemical engineering, food, pharmacy, ships, textile, papermaking and the like, and is excellent equipment for heating, cooling, heat recovery, quick sterilization and the like.
Brazed plate heat exchangers are usually built up from a stack of metal sheets having a corrugated shape. The brazed plate heat exchanger adopts stainless steel or other metals as plates and copper foil or other metals as brazing filler metal. The brazed plate heat exchanger has high production efficiency, small volume, large heat exchange area and large heat exchange coefficient, and gradually becomes the first of the heat exchanger. The brazing process requires that the thickness of brazing filler metal is about 0.05mm generally, the requirement on the forming precision of the plate is extremely high, and the precision error of the shape and position of the periphery of the plate is required to be less than 0.05mm generally technically. The thickness of the plate is generally about 0.3-0.8 mm. In the prior art, the plate is formed by one-time stamping by using an extremely precise die, and only the plate formed at one time has the same precision. The prior stamping forming technology can not meet the precision requirement when producing large-size brazing plate type heat exchanger plates, the sizes of the largest brazing plate type heat exchanger plates sold by leading enterprises in the market at present are 694 multiplied by 394mm and 996 multiplied by 394mm respectively, and the plates with larger plate area can not be further manufactured due to the limitation of processing precision. Therefore, the large plate heat exchanger mostly adopts a detachable structure, the gasket groove at the periphery of the plate is sealed by a rubber gasket or other sealing gaskets, and the sealing leakage possibility is high. While the use of brazed plate heat exchangers with good performance is restricted.
Chinese patent CN201410445149.0 discloses a method for forming a plate of a brazed plate heat exchanger, a plate and a heat exchanger, wherein the plate comprises a heat exchange region with corrugations in the middle of the plate and a sealing surface surrounding the periphery of the heat exchange region, the plate is made of stainless steel plate, and the plate of the brazed plate heat exchanger is formed by a secondary forming process, which comprises the following steps: the method comprises the following steps of performing primary forming, namely performing punch forming on a stainless steel plate to be punched through a first die on a hydraulic machine, wherein when a brazing plate type heat exchanger plate is subjected to primary forming, the size of a formed sealing surface is smaller than that of a sealing surface of a finished product plate, the machining precision of the formed sealing surface is lower than the precision requirement of the sealing surface of the finished product plate, and a heat exchange area structure on the plate reaches the requirement of final plate forming; and (3) secondary forming of the plate, namely, stamping the plate subjected to the primary forming through a second die on a hydraulic press, wherein the size and the precision of a sealing surface surrounding the periphery of the heat exchange area meet the requirements of a finished product plate during the secondary forming of the plate.
The production method does not have a whole set of automatic production equipment, and the existing equipment is manually taken and fed, so that the safety is low.
Disclosure of Invention
For solving above-mentioned technical problem, provide a plate forming equipment of brazed plate heat exchanger, this technical scheme has solved the automatic shaping of plate and the low problem of security of brazed plate heat exchanger.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
the utility model provides a brazed plate heat exchanger's slab former is applied to and takes the material to cut into the slab, and former is including: the bottom end of one side of the working surface of the punching machine is provided with a material taking port communicated with the outer side; the continuous stamping die comprises a die set, a stamping die, a first stamping die, a second stamping die and a stamping and cutting die, wherein the die set is arranged on the working surface of a stamping machine, the interior of the die set is sequentially provided with the stamping die, the first stamping die, the second stamping die and the stamping and cutting die along the material feeding direction, the top ends of the stamping die, the first stamping die, the second stamping die and the stamping and cutting die are fixedly connected with the working end of the stamping machine, the first stamping die and the second stamping die are respectively used for the first forming and the second forming of a sheet, and the second stamping die is positioned at the top of a material taking; the elastic material supporting frames are arranged at the feeding and discharging ends of the continuous stamping die and used for elastically supporting and lifting the ends of the material belt to be higher than the working surface of the continuous stamping die; the metal flattening machine is arranged on the outer side of the elastic material supporting frame positioned at the feeding end of the continuous stamping die and is used for flattening the coiled material; the automatic material receiving assembly is arranged on an elastic material supporting frame positioned at the discharging end of the continuous stamping die and is used for pulling the material belt to facilitate continuous stamping; the unwinding assembly is arranged on the outer side of the elastic material supporting frame and used for placing a material belt.
Preferably, the mold frame comprises: the upper die frame and the lower die frame are arranged on the working surface of the punching machine, and the die frames are arranged in parallel and fixedly connected through stand columns; the lifting plate is arranged between the die sets in parallel and is in vertical sliding fit with the stand column, the punching die, the first punching die, the second punching die and the punching and cutting die are sequentially arranged at the bottom end of the lifting plate along the material feeding direction, and the top end of the lifting plate is provided with a die handle which vertically penetrates through the upper die set and is coaxially and fixedly connected with the working end of the punching machine.
Preferably, the punching die comprises: the vertical projections of the first male die and the first female die are superposed and fixedly arranged at the bottom end of the lifting plate and the top end of the lower die frame respectively; the first movable assembly comprises a pressure plate, a pin and a spring, and the pressure plate is arranged between the first male die and the first female die in parallel and is vertically matched with the upright column in a sliding manner; the pin caps of the pins are vertically arranged on two sides of the top end of the pressure plate upwards, and the pins are vertically matched with the first male die and the lifting plate in a sliding manner; the spring is coaxially sleeved on the stand column, two ends of the spring are respectively abutted to the top end of the pressing plate and the bottom end of the first male die, the first male die vertically penetrates through the pressing plate and is embedded with the first female die in a working state, and a blanking hole for blanking is formed in the bottom end of the first female die.
Preferably, the first press die includes: the vertical projections of the second male die and the second female die are superposed and fixedly arranged at the bottom end of the lifting plate and the top end of the lower die carrier respectively, and the second male die moves relative to the second female die to perform primary forming stamping on the plate in a working state; the second movable plate is arranged between the second male die and the second female die in the same structure as the first movable assembly and is used for elastically abutting against the top end of the plate; and the positioning pin is vertically arranged at the bottom end of the second movable plate and is used for being inserted into the through hole for positioning.
Preferably, the second stamping die is identical in structure to the first stamping die and used for carrying out secondary forming stamping on the sheet.
Preferably, the punching and cutting die comprises: the vertical projections of the third male die and the third female die are superposed and fixedly arranged at the bottom end of the lifting plate and the top end of the lower die carrier respectively, the third male die moves relative to the third female die to cut off a connecting point in a working state, and the third male die and the third female die are positioned at the top of the material taking port; and the fourth movable assembly is arranged between the third male die and the third female die in the same structure as the first movable assembly and is used for elastically pressing against the top end of the plate.
Preferably, the elastic material supporting frame comprises: the first support is arranged at the material inlet and outlet ends of the continuous stamping die, arc waist-shaped openings are formed in two sides of the first support, and a fixed shaft is vertically arranged at the axial center of each arc waist-shaped opening; one end of the connecting rod is rotationally connected with the fixed shaft, and a sliding shaft in sliding fit with the arc waist-shaped opening is vertically arranged on the inner side of the connecting rod; the axis of the material supporting roller is vertical to the feeding direction of the continuous stamping die, two ends of the material supporting roller are rotatably connected with the other end of the connecting rod, and two ends of the tension spring are fixedly connected with one side of the connecting rod and the first bracket respectively; and the fixing bolt is fixedly arranged on the arc waist-shaped opening, and the top end of the material supporting roller is higher than the working surface of the continuous stamping die in a working state.
Preferably, automatic receipts material subassembly includes: the axis of the material receiving roller is horizontally and rotatably arranged on the first bracket at the discharge end of the continuous stamping die; the servo motor and the output shaft of the photoelectric encoder are coaxially and fixedly connected with the two ends of the material receiving roller, and the servo motor and the output shaft of the photoelectric encoder are electrically connected with the controller.
Preferably, unreel the subassembly including second support and blowing roller, the second support sets up at metal flatting mill feed end, and blowing roller rotates and sets up on second support top.
Preferably, the bottom end of the locating pin is conical.
Compared with the prior art, the invention has the beneficial effects that:
1. the automatic material belt conveying and leveling device automatically conveys a leveling material belt through a metal flatting machine and a rolling part, specifically, a rolling material is placed on a discharging roller, one end of a sheet bar horizontally penetrates through the metal flatting machine and the working end of a continuous stamping die and then is fixedly connected with a material receiving roller, and the position of a fixing bolt on an arc waist-shaped opening is adjusted, so that a material supporting roller overcomes the tension of a tension spring to enable the sheet bar to be higher than the working surface of the continuous stamping die; starting a servo motor to enable one end of the material belt to horizontally slide along the direction of the continuous stamping die material from the discharging roller; when the material belt is pulled off from the discharging roller, the surface of the material belt is slightly bent, and the material belt in a bent and rolled state can be flattened through a metal flattening machine, so that the yield is higher; compared with the prior art, the device is higher in safety;
2. the continuous processing function is realized through the continuous stamping die and the elastic material supporting frame, and particularly, the material supporting rollers positioned on two sides of the continuous stamping die elastically lift the material belt, so that the material belt is higher than the working surface of the continuous stamping die; starting a punching machine, enabling a working end of the punching machine to drive a punching die, a first punching die, a second punching die and a punching cut-off die to work simultaneously, enabling a first male die to vertically move relative to a first female die so as to punch a through hole in the material belt and a through hole deviating from the outline of the material belt, and fixedly connecting the material belt and the outline of the semi-finished product through a strip-shaped opening; the strip moves gradually, so that the strip is respectively subjected to primary forming and secondary forming on the working surfaces of the first stamping die and the second stamping die, namely after the sheet is stamped to form a first sealing surface at the first stamping die, the working end of the stamping machine is reset, the material lifting roller is enabled to lift the strip to be higher than the working surface of the first stamping die, and the bottom end of the sheet is enabled to be higher than the working surfaces of the first stamping die and the second stamping die, so that the sheet can move normally; at the position of the punching and cutting die, the third male die vertically moves relative to the third female die so as to cut off the connecting point, so that the finished product plate falls into the material taking port under the action of gravity, and the finished product plate is convenient for a worker to take out; compared with the prior art, the device has higher working efficiency.
Drawings
Fig. 1 is a perspective view of a sheet and a strip;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a front view of the continuous stamping die of the present invention;
FIG. 5 is a side view of the progressive stamping die of the present invention;
FIG. 6 is a cross-sectional view at section C-C of FIG. 5;
FIG. 7 is a perspective view of the elastomeric material holder of the present invention;
FIG. 8 is an enlarged view of a portion of FIG. 7 at D;
FIG. 9 is an enlarged view of a portion of FIG. 7 at E;
fig. 10 is a perspective view of the unwinding assembly of the present invention.
The reference numbers in the figures are:
a-a sheet; a1 — first sealing surface; a2-heat transfer zone; a3 — second sealing surface; a4-mounting holes;
b, material belt; b1-vias; b2-bar-shaped mouth; b3-connection point;
1-a punch; 1 a-material taking port;
2-a mould frame; 2 a-upper die carrier; 2 b-lower die carrier; 2 c-upright post; 2 d-a lifter plate; 2d 1-die shank;
3-punching a hole die; 3 a-a first male die; 3 b-a first female die; 3 c-a first movable assembly; 3c 1-platen; 3c 2-pin; 3c 3-spring;
4-a first stamping die; 4 a-a second male die; 4 b-a second female die; 4 c-a second flap; 4 d-positioning pin;
5-a second stamping die; 6-punching and cutting off a die; 6 a-a third punch; 6 b-a third female die; 6 c-a fourth movable assembly;
7-an elastic material supporting frame; 7 a-a first bracket; 7a 1-arc waist-shaped mouth; 7a 2-fixed axis; 7 b-a connecting rod; 7b 1-sliding shaft; 7 c-a material supporting roller; 7 d-a tension spring; 7 e-a fixing bolt;
8-a metal leveler;
9-a coil stock piece; 9 a-an automatic material receiving assembly; 9a 1-receiving roller; 9a 2-servomotor; 9a 3-photoelectric encoder; 9 b-an unwinding assembly; 9b1 — second bracket; 9b 2-discharge roller.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
Referring to fig. 2, a plate forming apparatus for a brazed plate heat exchanger, which is used for punching a material belt B into a plate a, includes:
the bottom end of one side of a working surface of the punching machine 1 is provided with a material taking port 1a communicated with the outer side;
the continuous stamping die comprises a die carrier 2 arranged on the working surface of a stamping machine 1, wherein a punching die 3, a first punching die 4, a second punching die 5 and a stamping and cutting die 6 are sequentially arranged in the die carrier 2 along the material feeding direction, the top ends of the punching die 3, the first punching die 4, the second punching die 5 and the stamping and cutting die 6 are fixedly connected with the working end of the stamping machine 1, the first punching die 4 and the second punching die 5 are respectively used for the first forming and the second forming of a sheet A, and the second punching die 5 is positioned at the top of a material taking port 1 a;
the elastic material supporting frame 7 is arranged at the feeding and discharging ends of the continuous stamping die and used for elastically supporting the end B of the material belt to be higher than the working surface of the continuous stamping die;
the metal flattening machine 8 is arranged on the outer side of the elastic material supporting frame 7 positioned at the feeding end of the continuous stamping die and is used for flattening the coiled material;
the material rolling part 9 comprises an automatic material receiving component 9a and an unreeling component 9B, and the automatic material receiving component 9a is arranged on an elastic material supporting frame 7 at the discharging end of the continuous stamping die and is used for pulling the material belt B to facilitate continuous stamping; the unreeling component 9B is arranged on the outer side of the elastic material supporting frame 7 and used for placing a material belt B.
As shown in fig. 1, the material belt B is a long strip steel belt, the punching machine 1 is a finished product which is formed by progressive punching of the die carrier 2, and the plate sheet a is formed by first forming to punch a first sealing surface a1 and a heat exchange area a 2; punching a second sealing surface A3 which meets the standard on the basis of the original first sealing surface A1 by secondary forming, and punching a mounting hole A4 on the plate A before the primary punching; during the first molding, the size of the molded sealing surface is smaller than that of the finished plate A, the processing precision of the molded sealing surface is lower than the precision requirement of the sealing surface of the finished plate A, and the structure of the heat exchange area A2 on the plate A meets the requirement of the final plate A; during the second molding, the size and the precision of the sealing surface surrounding the heat exchange area A2 meet the requirements of the sealing surface of the finished plate A;
the material rolling part 9 is used for rolling and releasing the material belt B;
starting the automatic material receiving assembly 9a to enable one end of the material belt B to horizontally slide from the unwinding assembly 9B along the direction of the continuous stamping die material;
when the material belt B is pulled off from the unreeling assembly 9B, the surface of the material belt B is slightly bent, and the material belt B in a bent state can be flattened through the metal flattening machine 8, so that the yield is higher;
the elastic material supporting frames 7 positioned at two sides of the continuous stamping die elastically lift the material belt B, so that the material belt B is higher than the working surface of the continuous stamping die;
starting a punching machine 1, enabling a working end of the punching machine to drive a punching die 3, a first punching die 4, a second punching die 5 and a punching and cutting die 6 to work simultaneously, punching the punching die 3 to punch a through hole B1 and a through hole B1 which deviates the outer contour of a material belt B on the material belt B, and fixedly connecting the material belt B with the outer contour of a semi-finished product through a strip-shaped opening B2; the strip B moves gradually, so that the strip B is formed for the first time and formed for the second time on the working surfaces of the first stamping die 4 and the second stamping die 5 respectively, namely after the sheet A stamps a first sealing surface A1 at the first stamping die 4, the working end of the stamping machine 1 is reset, so that the material lifting roller 7c lifts the strip B to be higher than the working surface of the first stamping die 4, and the bottom end of the sheet A is raised to be higher than the working surfaces of the first stamping die 4 and the second stamping die 5, so that the sheet B can move normally; at the die 6, the die 6 cuts off the connection point B3, so that the finished plate a falls under gravity into the material taking port 1a, thereby facilitating the removal by the worker.
As shown in fig. 4, the mold frame 2 includes:
the upper die frame 2a and the lower die frame 2b are arranged on the working surface of the punch 1, and the die frames are arranged in parallel and fixedly connected through an upright post 2 c;
The upper die frame 2a, the lower die frame 2B and the upright post 2c form the basic structure of the die frame 2, the lifting plate 2d is used for fixedly installing the punching die 3, the first punching die 4, the second punching die 5 and the punching and cutting die 6 and serves as a push plate, and the die handle 2d1 is fixedly connected with the working end of the punching machine 1, so that the punching die 3, the first punching die 4, the second punching die 5 and the punching and cutting die 6 are pushed by the lifting plate 2d to continuously punch on the material strip B, and finished products are obtained.
As shown in fig. 6, the punching die 3 includes:
the vertical projections of the first male die 3a and the first female die 3b are superposed and fixedly arranged at the bottom end of the lifting plate 2d and the top end of the lower die frame 2b respectively;
the first movable assembly 3c comprises a pressure plate 3c1, a pin 3c2 and a spring 3c3, wherein the pressure plate 3c1 is arranged between the first male die 3a and the first female die 3b in parallel and is vertically matched with the upright post 2c in a sliding manner; the pin 3c2 is vertically arranged at two sides of the top end of the pressure plate 3c1 with the pin cap upwards, and the pin 3c2 is vertically matched with the first male die 3a and the lifting plate 2d in a sliding manner; the spring 3c3 is coaxially sleeved on the upright post 2c, two ends of the spring are respectively abutted to the top end of the pressing plate 3c1 and the bottom end of the first male die 3a, the first male die 3a vertically penetrates through the pressing plate 3c1 to be embedded with the first female die 3b in a working state, and a blanking hole for blanking is formed in the bottom end of the first female die 3 b.
The first movable assembly 3c is used for abutting against the material belt B, so that punching is convenient, in operation, the lifting plate 2d drives the first male die 3a to vertically move towards the first female die 3B, firstly, the pressing plate 3c1 presses on the material belt B, then, the first male die 3a continuously and downwards moves by overcoming the elastic force of the spring 3c3, so that the working end of the first male die 3a penetrates through the pressing plate 3c1 and the working end of the first female die 3B to punch a through hole B1 and a strip-shaped opening B2 on the material belt B, punched waste materials fall through a blanking hole, a punching die is already in the open in the die industry, and the specific structure of the punching die is not described herein.
As shown in fig. 6, the first press die 4 includes:
the vertical projections of the second male die 4a and the second female die 4b are superposed and fixedly arranged at the bottom end of the lifting plate 2d and the top end of the lower die frame 2b respectively, and the second male die 4a moves relative to the second female die 4b to perform primary forming stamping on the plate A in a working state;
the second movable plate 4c is arranged between the second male die 4a and the second female die 4b in the same structure as the first movable assembly 3c and is used for elastically pressing against the top end of the plate A;
and a positioning pin 4d vertically arranged at the bottom end of the second movable plate 4c for being inserted into the through hole B1 for positioning.
During operation, the lifting plate 2d drives the second male die 4a to vertically move towards the second female die 4B, so that the second movable plate 4c is elastically abutted to the top end of the material strip B, and the positioning pin 4d penetrates through the through hole B1 to be positioned, so that the upper die carrier 2a penetrates through the working end of the second movable plate 4c and the second female die 4B to perform primary side shaping stamping on the material strip B.
As shown in fig. 6, the second press die 5 is structurally the same as the first press die 4 for performing the second-time forming press on the sheet a.
The second stamping die 5 and the first stamping die 4 are identical in structure and used for carrying out secondary forming stamping on the plate A, and production of finished plates A is facilitated.
As shown in fig. 6, the punching and cutting die 6 includes:
the vertical projections of the third male die 6a and the third female die 6B are superposed and fixedly arranged at the bottom end of the lifting plate 2d and the top end of the lower die frame 2B respectively, the third male die 6a moves relative to the third female die 6B to cut off a connection point B3 in a working state, and the third male die 6a and the third female die 6B are positioned at the top of the material taking port 1 a;
and the fourth movable assembly 6c is arranged between the third male die 6a and the third female die 6b in the same structure as the first movable assembly 3c and is used for elastically pressing against the top end of the plate A.
During operation, lifter plate 2d drives the vertical third die 6a that moves towards third die 6B to make fourth movable assembly 6c butt in advance on material area B top, thereby make third die 6a cut bar mouth B2, thereby make finished product slab A fall into and get material mouthful 1a, be convenient for collect the finished product.
As shown in fig. 8 and 9, the elastic material holder 7 includes:
the first support 7a is arranged at the material inlet and outlet end of the continuous stamping die, arc-shaped waist-shaped openings 7a1 are formed in two sides of the first support 7a, and a fixed shaft 7a2 is vertically arranged at the axis of each arc-shaped waist-shaped opening 7a 1;
one end of the connecting rod 7b is rotatably connected with the fixed shaft 7a2, and a sliding shaft 7b1 which is in sliding fit with the arc waist-shaped opening 7a1 is vertically arranged on the inner side of the connecting rod 7 b;
the axis of the material supporting roller 7c is vertical to the feeding direction of the continuous stamping die, two ends of the material supporting roller are rotationally connected with the other end of the connecting rod 7b,
two ends of the tension spring 7d are fixedly connected with one side of the connecting rod 7b and the first support 7a respectively;
and the fixing bolt 7e is fixedly arranged on the arc-shaped waist-shaped opening 7a1, and the top end of the material supporting roller 7c is higher than the working surface of the continuous stamping die in a working state.
The first bracket 7a is used for being rotatably connected with the connecting rod 7B through the fixed shaft 7a2, the sliding shaft 7B1 is limited to slide on the arc-shaped waist-shaped opening 7a1 by adjusting the position of the fixed bolt 7e on the arc-shaped waist-shaped opening 7a1, namely, the connecting rod 7B is enabled to support the material belt B higher than the working surface of the continuous stamping die through the material supporting roller 7c under the tension of the tension spring 7d, and therefore the stamped material belt B can be supported and separated from the die, and continuous stamping is facilitated.
As shown in fig. 7, the automatic receiving assembly 9a includes:
the material receiving roller 9a1 is horizontally and rotatably arranged on the first bracket 7a at the discharge end of the continuous stamping die;
servo motors 9a2 and 9b3, output shafts of the servo motors 9a2 and the photoelectric encoders 9a3 are coaxially and fixedly connected with two ends of the material receiving roller 9a1, and the servo motors 9b3 are electrically connected with a controller.
Start servo motor 9a2, make its output shaft drive receipts material roller 9a1 rotate on first support 7a to be convenient for drag material area B horizontal migration, thereby be convenient for continuous stamping forming, and can directly control material area B stroke through photoelectric encoder 9a3, the accurate stamping forming of secondary of being convenient for.
As shown in fig. 10, the unwinding assembly 9b comprises a second support 9b1 and an unwinding roller 9b2, wherein the second support 9b1 is disposed at the feeding end of the metal leveler 8, and the unwinding roller 9b2 is rotatably disposed at the top end of the second support 9b 1.
The discharging roller 9B2 is rotatably disposed on the second bracket 9B1, so that the material belt B can be pulled out from the discharging roller 9B2 and punched conveniently.
As shown in fig. 6, the bottom end of the positioning pin 4d is conical.
The bottom end of the positioning pin 4d is conical, so that the coaxial insertion in the through hole B1 is facilitated for positioning.
The working principle of the invention is as follows:
the device realizes the functions of the invention through the following steps, thereby solving the technical problems provided by the invention:
the method comprises the following steps: placing the coil stock on a discharging roller 9b2, enabling one end of the sheet A to horizontally penetrate through the metal flattening machine 8 and the working end of the continuous stamping die and then fixedly connected with a receiving roller 9a1, and adjusting the position of a fixing bolt 7e on the arc-shaped waist-shaped opening 7a1, so that the material supporting roller 7c overcomes the pulling force of a tension spring 7d to enable the sheet A to be higher than the working surface of the continuous stamping die;
step two: starting a servo motor 9a2 to enable one end of the material belt B to horizontally slide from the discharging roller 9B2 along the direction of the continuous stamping die material; when the material belt B is pulled off from the discharging roller 9B2, the surface of the material belt B is slightly bent, and the material belt B in a bent state can be flattened by the metal flattening machine 8, so that the yield is higher;
step three: the material supporting rollers 7c positioned at two sides of the continuous stamping die elastically lift the material belt B, so that the material belt B is higher than the working surface of the continuous stamping die;
step four: starting the punching machine 1, enabling the working end of the punching machine to drive the punching die 3, the first punching die 4, the second punching die 5 and the punching and cutting die 6 to work simultaneously, enabling the first male die 3a to vertically move relative to the first female die 3B so as to punch a through hole B1 and a through hole B1 deviating from the outer contour of the material belt B on the material belt B, and fixedly connecting the material belt B with the outer contour of a semi-finished product through a strip-shaped opening B2; the strip B moves gradually, so that the strip B is formed for the first time and formed for the second time on the working surfaces of the first stamping die 4 and the second stamping die 5 respectively, namely after the sheet A stamps a first sealing surface A1 at the first stamping die 4, the working end of the stamping machine 1 is reset, so that the material lifting roller 7c lifts the strip B to be higher than the working surface of the first stamping die 4, and the bottom end of the sheet A is raised to be higher than the working surfaces of the first stamping die 4 and the second stamping die 5, so that the sheet B can move normally; at the punching and cutting die 6, the third male die 6a moves vertically relative to the third female die 6B to cut off the connection point B3, so that the finished plate piece a falls into the material taking port 1a under the action of gravity, thereby being convenient for a worker to take out.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a brazing sheet type heat exchanger's slab former is applied to and punches into slab (A) with material area (B), its characterized in that, including:
the bottom end of one side of the working surface of the punching machine (1) is provided with a material taking port (1 a) communicated with the outer side;
the continuous stamping die comprises a die set (2) arranged on the working surface of a stamping machine (1), wherein a punching die (3), a first stamping die (4), a second stamping die (5) and a stamping and cutting die (6) are sequentially arranged in the die set (2) along the material feeding direction, the top ends of the punching die (3), the first stamping die (4), the second stamping die (5) and the stamping and cutting die (6) are fixedly connected with the working end of the stamping machine (1), the first stamping die (4) and the second stamping die (5) are respectively used for the first forming and the second forming of a sheet (A), and the second stamping die (5) is positioned at the top of a material taking port (1 a);
the elastic material supporting frame (7) is arranged at the feeding and discharging ends of the continuous stamping die and used for elastically supporting the material belt (B) end to be higher than the working surface of the continuous stamping die;
the metal flattening machine (8) is arranged on the outer side of the elastic material supporting frame (7) positioned at the feeding end of the continuous stamping die and is used for flattening the coil materials;
the material rolling part (9) comprises an automatic material receiving assembly (9 a) and an unreeling assembly (9B), and the automatic material receiving assembly (9 a) is arranged on an elastic material supporting frame (7) at the discharging end of the continuous stamping die and used for pulling the material belt (B) to facilitate continuous stamping; the unreeling component (9B) is arranged on the outer side of the elastic material supporting frame (7) and used for placing a material belt (B).
2. The apparatus for forming a sheet of a brazed plate heat exchanger according to claim 1, wherein the die carrier (2) comprises:
the upper die carrier (2 a) and the lower die carrier (2 b) are arranged on the working surface of the punch (1), and the die carriers are arranged in parallel and are fixedly connected through an upright post (2 c);
lifter plate (2 d), parallel arrangement is in between the die carrier and with stand (2 c) vertical sliding fit, punching die (3), first stamping die (4), second stamping die (5) and punching press cut off mould (6) set gradually in lifter plate (2 d) bottom along material feed direction, lifter plate (2 d) top is provided with and runs through perpendicularly die carrier (2 a) and with punching machine (1) the coaxial fixed connection's of working end die shank (2 d 1).
3. The apparatus for forming plates of a brazed plate heat exchanger according to claim 1, wherein the punching die (3) comprises:
the vertical projections of the first male die (3 a) and the first female die (3 b) are overlapped and fixedly arranged at the bottom end of the lifting plate (2 d) and the top end of the lower die frame (2 b) respectively;
the first movable assembly (3 c) comprises a pressure plate (3 c 1), a pin (3 c 2) and a spring (3 c 3), wherein the pressure plate (3 c 1) is arranged between the first male die (3 a) and the first female die (3 b) in parallel and is vertically matched with the upright post (2 c) in a sliding manner; the pin caps of the pins (3 c 2) are upwards vertically arranged at two sides of the top end of the pressure plate (3 c 1), and the pins (3 c 2) are vertically matched with the first male die (3 a) and the lifting plate (2 d) in a sliding manner; spring (3 c 3) coaxial cover is established on stand (2 c) and both ends butt respectively at clamp plate (3 c 1) top and first terrace die (3 a) bottom, under the operating condition, first terrace die (3 a) vertically run through clamp plate (3 c 1) and first die (3 b) gomphosis, just be provided with the blanking hole that is used for the blanking on first die (3 b) bottom.
4. A plate forming apparatus for a brazed plate heat exchanger according to claim 1, wherein the first stamping die (4) comprises:
the vertical projections of the second male die (4 a) and the second female die (4 b) are superposed and fixedly arranged at the bottom end of the lifting plate (2 d) and the top end of the lower die frame (2 b) respectively, and the second male die (4 a) moves relative to the second female die (4 b) to perform primary forming stamping on the plate (A) in a working state;
the second movable plate (4 c) is arranged between the second male die (4 a) and the second female die (4 b) in the same structure as the first movable assembly (3 c) and is used for elastically pressing against the top end of the plate (A);
and the positioning pin (4 d) is vertically arranged at the bottom end of the second movable plate (4 c) and is inserted into the through hole (B1) for positioning.
5. The plate forming equipment of the brazed plate heat exchanger according to claim 1, wherein the second stamping die (5) is structurally identical to the first stamping die (4) for performing the second forming stamping on the plate (A).
6. The apparatus for forming a sheet of a brazed plate heat exchanger according to claim 1, wherein the die (6) comprises:
the vertical projections of the third male die (6 a) and the third female die (6B) are overlapped and fixedly arranged at the bottom end of the lifting plate (2 d) and the top end of the lower die frame (2B) respectively, the third male die (6 a) moves relative to the third female die (6B) to cut off a connection point (B3) in a working state, and the third male die (6 a) and the third female die (6B) are located at the top of the material taking port (1 a);
and the fourth movable assembly (6 c) is arranged between the third male die (6 a) and the third female die (6 b) in the same structure as the first movable assembly (3 c) and is used for elastically pressing against the top end of the plate (A).
7. The apparatus for forming plates of a brazed plate heat exchanger according to claim 1, wherein the resilient carrier (7) comprises:
the first support (7 a) is arranged at the material inlet and outlet end of the continuous stamping die, arc-shaped waist-shaped openings (7 a 1) are formed in two sides of the first support (7 a), and a fixed shaft (7 a 2) is vertically arranged at the axis of each arc-shaped waist-shaped opening (7 a 1);
one end of the connecting rod (7 b) is rotationally connected with the fixed shaft (7 a 2), and the inner side of the connecting rod (7 b) is vertically provided with a sliding shaft (7 b 1) which is in sliding fit with the arc waist-shaped opening (7 a 1);
a material supporting roller (7 c), the axis of which is vertical to the feeding direction of the continuous stamping die, and two ends of which are rotationally connected with the other end of the connecting rod (7 b),
two ends of the tension spring (7 d) are respectively fixedly connected with one side of the connecting rod (7 b) and the first bracket (7 a);
and the fixing bolt (7 e) is fixedly arranged on the arc waist-shaped opening (7 a 1), and the top end of the material supporting roller (7 c) is higher than the working surface of the continuous stamping die in a working state.
8. The plate forming equipment of the brazing plate heat exchanger according to claim 1, wherein the automatic receiving assembly (9 a) comprises:
the material receiving roller (9 a 1) is arranged on the first bracket (7 a) at the discharge end of the continuous stamping die in a horizontally rotating mode;
servo motors (9 a 2) and 9b3, the output shafts of the servo motors (9 a 2) and the photoelectric encoders (9 a 3) are coaxially and fixedly connected with two ends of the material receiving roller (9 a 1), and the servo motors (9 b 3) are electrically connected with the controller.
9. The plate forming device of the brazing plate heat exchanger as recited in claim 1, wherein the unwinding assembly (9 b) comprises a second bracket (9 b 1) and a discharging roller (9 b 2), the second bracket (9 b 1) is arranged at the feeding end of the metal flattening machine (8), and the discharging roller (9 b 2) is rotatably arranged at the top end of the second bracket (9 b 1).
10. The apparatus for forming plates of a brazed plate heat exchanger according to claim 4, wherein the bottom ends of the positioning pins (4 d) are conical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010942618.5A CN112091112A (en) | 2020-09-09 | 2020-09-09 | Plate sheet forming equipment of brazing plate type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010942618.5A CN112091112A (en) | 2020-09-09 | 2020-09-09 | Plate sheet forming equipment of brazing plate type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112091112A true CN112091112A (en) | 2020-12-18 |
Family
ID=73751247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010942618.5A Withdrawn CN112091112A (en) | 2020-09-09 | 2020-09-09 | Plate sheet forming equipment of brazing plate type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112091112A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102633A (en) * | 2021-04-22 | 2021-07-13 | 湖南财经工业职业技术学院 | Stamping teaching mould |
| CN113134538A (en) * | 2021-05-10 | 2021-07-20 | 四川轻舟汽车轻量化技术有限公司 | Processing method for hot stamping forming of automobile door anti-collision beam |
| CN115069879A (en) * | 2022-07-25 | 2022-09-20 | 泰州万鼎电气有限公司 | Liquid flow back pressure type E-shaped silicon steel sheet integral punching stacking equipment |
| CN115673146A (en) * | 2022-11-18 | 2023-02-03 | 江苏蔚联精密科技有限公司 | Double-station stamping device for radiating fins |
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| CN205684570U (en) * | 2016-06-20 | 2016-11-16 | 刘晓丽 | A kind of automatic stamping equipment of thin-walled annular workpiece |
| CN109954785A (en) * | 2019-04-19 | 2019-07-02 | 苏州宝成汽车冲压有限公司 | One kind is from sub-material progressive die punching machine |
| CN209143292U (en) * | 2018-10-31 | 2019-07-23 | 安庆市恒昌机械制造有限责任公司 | A kind of rewinding mechanism of raw material |
| CN111390022A (en) * | 2020-03-15 | 2020-07-10 | 王莹燕 | Continuous stamping die of switch support |
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| GB1316817A (en) * | 1969-05-05 | 1973-05-16 | Satzinger Roland | Reel-unwinding apparatus |
| CN105458036A (en) * | 2015-12-21 | 2016-04-06 | 天津宏达联合包装材料科技有限公司 | Uncoiler used in cooperation with dotter |
| CN205684570U (en) * | 2016-06-20 | 2016-11-16 | 刘晓丽 | A kind of automatic stamping equipment of thin-walled annular workpiece |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102633A (en) * | 2021-04-22 | 2021-07-13 | 湖南财经工业职业技术学院 | Stamping teaching mould |
| CN113134538A (en) * | 2021-05-10 | 2021-07-20 | 四川轻舟汽车轻量化技术有限公司 | Processing method for hot stamping forming of automobile door anti-collision beam |
| CN115069879A (en) * | 2022-07-25 | 2022-09-20 | 泰州万鼎电气有限公司 | Liquid flow back pressure type E-shaped silicon steel sheet integral punching stacking equipment |
| CN115673146A (en) * | 2022-11-18 | 2023-02-03 | 江苏蔚联精密科技有限公司 | Double-station stamping device for radiating fins |
| CN115673146B (en) * | 2022-11-18 | 2023-10-20 | 江苏蔚联精密科技有限公司 | Double-station stamping device for radiating fin |
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Application publication date: 20201218 |
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