CN104859178A - Die for manufacturing annular mold briquetting machine mold sleeve and manufacturing method of mold sleeve - Google Patents

Abstract

The invention belongs to the field of mechanical manufacturing technology, and in particular relates to a mold for making a mold cover of a ring die briquetting machine and a method for manufacturing the mold cover. The mold sleeve is a stepped sleeve, the inner cross section gradually changes from square to circular, and the outer cross section is a stepped combination of square and circular. The stamping die includes an upper forming die 2 , a lower forming die 3 , a die base 4 , a guide plate 1 and a punch 5 . The guide plate 1 is fixed on the upper forming die 2, and the forming dies are respectively the upper forming die 2, the lower forming die 3 and the forming base 4 from top to bottom, and the punch 5 is used as a stamping mechanism. The specific production method is to select a suitable steel pipe according to the size of the die set, perform preliminary processing on a lathe, and then form it by heating and stamping, and finally flatten the end surface to obtain a finished product. The invention has the advantages of simple processing and manufacture, simple stamping process and strong practicability.

Description

A mold for making a ring mold briquetting machine mold sleeve and a manufacturing method of the mold sleeve

technical field

The invention belongs to the field of mechanical manufacturing technology, and in particular relates to a mold for making a mold cover of a ring die briquetting machine and a method for manufacturing the mold cover.

Background technique

With the development of forage industry and biomass energy utilization, forage and biomass briquetting machines have been widely used. The new die set and die plate combined ring die briquetting machine has gradually attracted attention because of its strong material adaptability and easy replacement of die sets. The structure of the mold sleeve is a stepped sleeve, the inner section is a gradual change from square to circular, and the outer section is a combination of square and circular steps. The complexity of its structure makes the processing and forming of the mold sleeve a difficult problem in the manufacture of briquetting machines. The processing of the inclination angle of the inner hole of the mold sleeve, the square surface of the end and the square surface of the inner hole is extremely cumbersome and complicated by using the traditional technology, and The consistency of the finished material is poor.

Contents of the invention

In view of the above problems, the object of the present invention is to provide a complete set of molds for making ring die briquetting machine die sleeves and a method for manufacturing the die sleeves, thereby simplifying the processing technology, improving the production efficiency of the die sleeves, and reducing processing costs.

The mold of the present invention is used to make the mold cover of the ring mold briquetting machine. It includes an upper forming die 2, a lower forming die 3, a die base 4, a guide plate 1 and a punch 5, and it is characterized in that: the molds are installed in the following order from top to bottom: guide plate 1, upper forming die 2, lower forming Mold 3, mold base 4; the guide plate 1 is a rectangular thin plate, the upper forming mold 2 is a disc with a square through hole in the center, and the thin surface where the short sides of the two guide plates 1 are located is fixed to the two edge surfaces of the upper forming mold 2 , to ensure that the two guide plates 1 are parallel to each other and parallel to both sides of the square hole of the upper forming die 2, thereby forming a guide groove; the lower forming die 3 is a cylinder with a central through hole, and has a circular groove on the upper surface , the inner diameter of the circular groove and the outer diameter of the upper molding die 2 are clearance fits; the mold base 4 is a disc with a circular through hole in the center, and a layer of circular boss is added on the upper surface, and the outer diameter of the boss is the same as The inner diameter of the through hole at the center of the lower molding die 3 is clearance fit. In the stamping die of the die set, the punch 5 includes a stressed part, a guiding part and a stamping area, and the three form an integrated mechanism; the guiding part cooperates with the guide groove formed by the guide plate 1, and the stamping area The shape is just enough to fill the inner hole of the mold sleeve, and the length is slightly smaller than the total length of the finished mold sleeve.

The manufacture method of ring mold briquetting machine mold cover of the present invention comprises following operation:

a. Select the appropriate steel pipe as the rough material according to the required die sleeve diameter and wall thickness;

b. Cut the rough blank into the required length of the mold sleeve on the lathe and complete the processing of the rear section of the blank according to the outer dimension of the rear section of the mold sleeve;

c. After heating the billet at high temperature, put it into the mold quickly, and use a punch to stamp it to form it;

d. After forming, quickly put it into cold water to cool;

e. Process the end face of the front section of the die set to be smooth.

The outer diameter of the selected steel pipe is equal to the side length of the square outer section of the front section of the mold sleeve, and the inner diameter is equal to the diameter of the circular inner section of the rear section of the mold sleeve.

The invention has the following advantages: it overcomes the disadvantages of the prior art, and is an innovation for energy saving and consumption reduction and low cost. The method of the invention is unique, the processing difficulty of the blank is low, and the molding of the outer side and the inner side of the die sleeve is completed in one stamping, and the operation is simple and the practicability is strong.

Description of drawings

Fig. 1 is the front view of stamping mold;

Fig. 2 is the top view of stamping mold;

Figure 3 is a front view of the punch;

Figure 4 is a top view of the punch;

Fig. 5 is a front view of the mold cover blank;

Fig. 6 is a left view of the mold sleeve blank;

Fig. 7 is the front view of the finished mold cover;

Fig. 8 is a left view of the finished mold cover;

Figure 9 is a schematic diagram of the stamping process.

reference sign

1 guide plate, 2 upper forming die, 3 lower forming die, 4 die base, 5 punch, 6 die set blank.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figures 1, 2, 3 and 4, they are the front view and top view of the molding die and punch in the stamping die of the present invention. The stamping die of the present invention includes an upper forming die 2 , a lower forming die 3 , a die base 4 , a guide plate 1 and a punch 5 .

As shown in Figures 1 and 2, in the stamping mold of the die set, the guide plate 1 is a rectangular thin plate, the number is 2, and the upper molding die 2 is a disc with a square through hole in the center. Two through grooves are symmetrically arranged on the outer edge of the upper forming mold 2, and the short sides of the two guide plates 1 are fitted and fixed with the two through grooves respectively to ensure that the two guide plates 1 are parallel to each other and aligned with the upper forming mold 2. Wherein two sides of the square hole are parallel, and wherein, the thickness of upper molding die 2 is equal to the front section length of mold cover.

As shown in Figures 1 and 2, in the die sleeve stamping die, the lower forming die 3 is a cylinder with a circular through hole at the center, and a circular groove is formed on the upper surface, and the inner diameter of the circular groove is the same as that of the upper forming die 2. The outer diameter is clearance fit, and the groove depth is 5-10mm, which is used to fix the upper molding die 2 .

As shown in Figures 1 and 2, in the stamping mold of the mold sleeve, the mold base 4 is a disc with a circular through hole in the center, and a circular boss is arranged on it, and the outer diameter of the boss is connected to the center of the lower forming mold 3. The inner diameter of the hole is a clearance fit. After the mold base 4 and the lower forming die 3 are matched, the distance from the upper surface of the boss to the circular groove of the lower forming die 3 is equal to or slightly greater than the length of the rear section of the die sleeve.

As shown in Figures 3 and 4, in the stamping mold of the die sleeve, the punch 5 includes a stressed part, a guiding part and a stamping area, and the three form an integrated mechanism. The grooves are matched, and the shape of the stamping area can just fill the inner hole of the die sleeve, and the length is slightly smaller than the total length of the finished die sleeve.

A method for manufacturing a ring mold briquetting machine mold cover, comprising the following steps:

a. Select the appropriate steel pipe as the rough material according to the required die sleeve diameter and wall thickness;

b. Cut the rough blank into the required length of the mold sleeve on the lathe, and process the rear end of the blank according to the shape and size of the rear end of the mold sleeve;

c. Heat the billet at high temperature and quickly put it into the mold, and use a punch to stamp it to deform it;

d. After forming, quickly put it into cold water to cool;

e. Process the end face of the die set flat.

The outer diameter of the steel pipe selected in process a is equal to the side length of the square outer section of the mold sleeve, and the inner diameter is equal to the diameter of the circular inner section of the mold sleeve.

As shown in Figures 5 and 6, it is a front view and a left view of the mold cover blank 6, that is, the blank obtained after processing in process b. The mold cover blank 6 is a stepped circular casing, which is obtained from a steel pipe through lathe processing. The length of the front section of the billet should be slightly longer than the length of the front section of the finished mold sleeve.

As shown in Fig. 9, it is a schematic diagram of the stamping process of the die sleeve. Before stamping, heat the front part of the mold cover blank 6 to 950°C for at least 3 minutes, then quickly insert the other end of the mold cover blank 6 downward into the inner hole of the lower forming mold 3, and then insert the punch 5 along the arrow as shown in the figure. In the direction shown, insert the guide plate 1 into the inner hole of the blank of the die sleeve, and turn on the press, apply pressure to the punch in the direction shown by the arrow, lift the press after reaching a certain pressure, and quickly put the punch 5 and The stamped mold sleeve is cooled in cold water. After the temperature drops, the mold base 4 is removed, the mold cover is knocked out from the inner hole of the lower forming mold 3, and the front end surface of the mold cover is repaired on a lathe to be flat, which is the finished mold cover.

As shown in Figures 7 and 8, it is the front view and left view of the finished mold set. The structure of the mold sleeve is a stepped sleeve, the front section is a square outer section, and the front end is provided with a square inlet, the rear section of the mold sleeve is a circular outer section, and the end is provided with a circular outlet; The inlet to the outlet of the die sleeve is connected by an inner hole, and the cross section of the inner hole from the inlet end to the outlet end gradually transitions from a square to a circle.

Claims (4)

1. make a mould for ring mould briquettor die sleeve, comprise mould 2, compacted under mould 3, mold base 4, guide plate 1 and drift 5,

It is characterized in that:

Described mould from top to bottom erection sequence is followed successively by: guide plate 1, upper mould 2, compacted under mould 3, mold base 4;

Described guide plate 1 is rectangle thin plate, the disk of square through hole is had centered by upper mould 2, two guide plate 1 minor face place sakes and surface, upper mould 2 two edges are fitted fixing, ensure that two guide plates 1 are parallel to each other and parallel with the wherein both sides of the square opening of upper mould 2, thus form gathering sill;

The cylinder of through hole centered by described compacted under mould 3, and have circular trough at upper surface, circular trough internal diameter and upper mould 2 external diameter are matched in clearance;

Be the disk of manhole centered by described mold base 4, and added one deck round boss at upper surface, boss external diameter and compacted under mould 3 central through hole internal diameter are matched in clearance.

2. mould as claimed in claim 1, is characterized in that:

Described drift 5 comprises force part, guiding position and Stamping Area, three's integralization mechanism; The gathering sill that described guiding position is formed with guide plate 1 matches, and described Stamping Area shape fills die sleeve endoporus, and length is slightly less than die sleeve overall length.

3., according to a method for the Mold Making ring mould briquettor die sleeve of claim 1 or 2, it is characterized in that:

Comprise following operation:

A, select suitable steel pipe as blank material according to required Case diameter and wall thickness;

B, blank material is cut into die sleeve Len req by lathe and according to die sleeve back segment appearance and size, blank back segment is machined;

C, put into mould rapidly by after blank high-temperature heating, use punch to make it shaping;

D, shaping rear cold water of putting into rapidly cool;

E, by die sleeve leading portion end face processing smooth.

4. method according to claim 3, it is characterized in that selected outer diameter of steel pipes equals the die sleeve leading portion square exterior cross-section length of side, internal diameter equals die sleeve back segment circular internal cross-section diameter.