CN205289683U - Round steel casting steel mould - Google Patents

Abstract

The utility model discloses a round steel casting steel mold, which belongs to the field of round steel casting and solves the problems of low efficiency of the existing round steel casting process, poor quality of the produced round steel and short service life of the steel mold. The utility model comprises a steel mold support device and a flow divider. The steel mold support device includes a mold frame, a steel pipe and a compression frame arranged in the mold frame; the compression frame is arranged above the mold frame; a bottom plug is arranged at the bottom of the mold frame; The steel pipe is set on the bottom plug; the formwork is provided with an outer card and an inner card; one side of the outer card is provided with an outer card groove; both sides of the inner card are provided with an inner card groove, and the outer card groove and the inner card groove The positions of the grooves correspond to each other, and they are all arc-shaped, and their radians correspond to the arc surface radians of the outer wall of the steel pipe; the steel pipe is arranged between the outer card groove and the inner card groove; The upper end of the steel pipe is connected. The utility model can effectively improve the casting efficiency of the round steel, improve the quality of the round steel and reduce the production cost.

Description

A round steel casting mold

technical field

The utility model belongs to the field of round steel casting, in particular relates to a round steel casting steel mold.

Background technique

Casting is a common metal thermal processing process. Specifically, it refers to the process of melting metal into a liquid that meets certain requirements and pouring it into a mold, cooling, solidifying, and cleaning to obtain a casting with a predetermined shape, size, and performance. . Casting is divided into sand casting and special casting. Sand casting uses sand as the mold material; special casting includes investment casting and metal casting. The traditional casting of round steel uses steel pipe as the casting mold, which is called a steel mold. The structure of the steel mold is simple, so the casting of round steel seems to be very simple, but in fact it is the opposite. The traditional round steel casting process uses human eyes to locate the steel mold, and the position accuracy of the steel mold is low; when the molten steel is cast, the molten steel is easy to contact with the inner wall of the steel mold, and the molten steel splashes to produce steel balls, which makes the surface of the round steel concave and affects the surface quality of the round steel; Some parts are in uneven contact with molten steel, which makes the steel mold seriously deformed by heat, which makes it difficult to release the round steel mold; at the same time, whether the inner wall of the steel mold is damaged or the shape of the steel mold is bent and deformed, the service life of the steel mold will be reduced, and even the steel mold will be damaged. scrapped.

Chinese patent application number 201520449238.2, the patent document published on November 11, 2015, discloses a round steel ingot mould, including a mold body, lifting lugs and heat insulation boards, the mold body is provided with an inner cavity, and the lifting lugs are fixedly installed on the mold body The side wall and the heat insulation board are installed on the inner wall of the upper opening of the mold body, the cross section of the inner cavity is circular, and the cross section of the outer surface of the mold body is a wavy polygon. The processing difficulty of the inner cavity is reduced by setting the inner cavity in a cylindrical shape or a truncated cone shape. Set the cross-section of the outer surface of the mold body as a wavy polygon, increase the heat dissipation area on the side of the steel ingot, speed up the heat dissipation speed of the molten steel, make the outermost molten steel rapidly cool to form a chilling layer, and accelerate the growth rate of the thickness of the chilling layer, so that It is sufficient to withstand the static pressure during the molten steel pouring process and prevent cracks in the chilled layer. At the same time, the accuracy of the various dimensions outside the round steel ingot mold will not affect the dimensional accuracy of the round steel ingot. Therefore, the requirements for the machining accuracy of the outer surface of the round steel ingot mold are low, reducing procedures and working hours, and saving costs. However, the technical solution disclosed in this utility model has a complex structure, difficult processing and manufacturing, and difficult control of the molten steel casting position, and the casting efficiency is not high.

Chinese patent application number 201320266585.2, the patent document published on October 16, 2013, discloses a steel ingot mold car, including a mold car and a steel ingot mold, and it also includes a hydraulic cylinder and a connecting rod connected to the output end of the hydraulic cylinder , the other end of the connecting rod is movably connected with the steel ingot mold, and the front baffle and the rear baffle are fixedly installed on the mold car to limit the forward tilt and backward tilt of the steel ingot mold respectively. In this utility model, the steel ingot mold is placed obliquely during pouring, and the vertical state is restored after pouring, so as to achieve the purpose of extending the length of the steel ingot of the vacuum induction furnace, so as to adapt to the raw material specifications of the electroslag remelting furnace. The utility model only adds hydraulic transmission equipment without changing the structure of the original vacuum induction furnace body, saves investment, occupies a small space, and expands the specification range of vacuum induction smelting and electroslag remelting smelting products. When the technical solution disclosed in this utility model is applied to round steel casting, if inclined casting is adopted, the surface of the round steel will inevitably be cooled unevenly, resulting in uneven hardness and density of the round steel, and poor quality; Steel has low efficiency and is not suitable for mass production.

Contents of the invention

1. Problems to be solved

Aiming at the problems that the existing round steel casting process is rough and inefficient, the quality of the round steel produced by casting is poor, and the service life of the steel mold for casting is not long, the utility model provides a round steel casting mold, which can effectively improve the efficiency of the round steel casting. High efficiency, and the round steel produced by casting has high surface quality and compact internal structure, and the steel mold for casting can be used repeatedly, which reduces production costs.

2. Technical solution

In order to solve the above problems, the utility model adopts the following technical solutions.

A round steel casting steel mold, comprising a steel mold support device and a flow divider; the steel mold support device includes a mold frame and steel pipes arranged in the mold frame, and also includes a compression frame; the compression frame is arranged on above the formwork; the bottom of the formwork is evenly provided with a number of bottom plugs; the steel pipe is vertically arranged on the bottom plug; the two opposite sides of the formwork are provided with outer clamps, and the middle part is provided with inner clamps. card; the outer card and the inner card are parallel; one side of the outer card is provided with an outer card groove; the two sides of the inner card are provided with an inner card groove, and the outer card groove and the inner card groove The positions of the grooves correspond; the outer card groove and the inner card groove are arc-shaped, and their radians correspond to the arc surface radians of the outer wall of the steel pipe; the steel pipe is arranged between the outer card groove and the inner card groove; The top of the formwork is provided with an inlet connection block; the inlet connection block is connected to the upper end of the steel pipe, and the inlet connection block is provided with a diversion hole corresponding to the inner hole of the steel pipe; the flow divider is arranged on Between the inlet connection block and the compression frame, a diversion hole is provided on the flow divider; the diversion hole corresponds to the diversion hole on the inlet connection block.

Preferably, the inlet connection block includes an aluminum silicate felt and a riser; the riser is arranged on the steel pipe; the aluminum silicate felt is covered on the riser; the aluminum silicate felt is provided with The diversion hole corresponding to the riser.

Preferably, the two opposite sides of the mold frame are provided with outer card holders; the outer card is arranged on the outer card holder; the inner wall of the mold frame is provided with an inner card holder; the inner card is arranged On the inner deck.

Preferably, locks are provided on the outer surfaces of the two opposite side walls at the upper end of the formwork; the pressing frame includes a frame body, frame ears arranged on both sides of the frame body, and frame bolts arranged on the frame ears ; The pressing frame is connected to the locking port through the frame bolt and arranged on the diverter, and the diverter is pressed on the inlet connection block.

Preferably, the lock is provided with a U-shaped opening facing the horizontal direction; the lower end of the frame bolt is provided with external threads; the frame bolt is fixed by a nut after passing through the U-shaped opening on the lock.

Preferably, the outer surface of the side wall at the upper end of the formwork is also provided with lifting lugs.

3. Beneficial effects

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

(1) The steel mold support device of the present utility model is provided with a bottom plug at the bottom of the formwork, which can make the steel pipes reasonably and evenly distributed and set, and keep a certain gap between the steel pipes, which can improve the heat dissipation effect and accelerate the cooling rate of the molten steel; set The outer card and the inner card can accurately locate and fix the position of the steel pipe. At the same time, the outer card and the inner card can effectively avoid the mutual contact between the steel pipes, that is, they can maintain a reasonable gap between the steel pipes, and improve the cooling effect of the steel pipes; In addition, since the steel pipe is in a high-temperature state, it is prone to bending deformation under the action of gravity. The bracket device of the present invention is provided with an outer card and an inner card, which can effectively prevent the steel pipe from bending deformation at high temperature, thereby protecting the steel pipe and prolonging the life of the steel pipe. The service life is also convenient for the follow-up round steel to be removed from the mold, so that the steel pipe can be taken out of the steel pipe smoothly; the bracket device of the utility model is also provided with an inlet connection block connecting the steel pipe and the diverter, on the one hand, it has the effect of heat preservation, so that the outlet at the upper end of the steel pipe The molten steel at the center can be cooled slowly, avoiding cooling depressions, and improving the quality of the round steel; on the other hand, the inlet connection block can seamlessly connect the diverter and the steel pipe, which has the functions of heat preservation, sealing and buffering, and effectively protects the diverter and the steel pipe There will be no wear and collision between them, and the molten steel will not overflow;

(2) In the support device of the present invention, the inlet connection block comprises aluminum silicate felt and a riser, which can have a better thermal insulation effect and further improve the quality of the produced round steel; the riser can make molten steel full of steel pipes on the one hand, Avoid defects such as cold shrinkage pits in the produced round steel; on the other hand, it can also play a role in heat preservation, so that the molten steel at the outlet of the upper end of the steel pipe can be cooled slowly to avoid cooling depressions;

(3) The steel mold support device of the present utility model is provided with an outer card seat and an inner card seat, which can facilitate the disassembly and assembly of the outer card and the inner card, reduce maintenance costs, enable the support device of the present utility model to be used repeatedly, and prolong the service life ; At the same time, the setting of the outer card holder and the inner card holder can further improve the installation accuracy of the outer card and the inner card;

(4) The steel mold support device of the present utility model is provided with a lock, and a frame bolt is set on the compression frame, and the cooperation of the lock and the frame bolt can firmly and stably fix the compression frame on the formwork, which is a firm installation The shunt improves the security and foundation;

(5) A U-shaped opening facing the horizontal direction is arranged on the lock of the steel mold support device of the present utility model, and is connected by a nut. When tightening the frame, you only need to loosen the nut to push the upper frame bolt of the compression frame from the U-shaped opening in the horizontal direction, which speeds up the disassembly speed and improves the work efficiency;

(6) The steel mold support device of the present utility model is also provided with lifting lugs, so that it can move and change positions by equipment such as row cranes;

(7) The utility model can cast a plurality of round steels at one time, which improves the casting efficiency of the round steels. At the same time, the casting steel mold support device with reasonable design can be used to accelerate the cooling rate of the round steels and improve the quality of the produced round steels. Protecting the steel pipe itself from damage and deformation prolongs the service life of the round steel casting mold of the utility model.

Description of drawings

Fig. 1 is the structural representation of a kind of round steel casting steel mold in the utility model embodiment 1;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the top view of Fig. 1;

Fig. 4 is the top view after removing separator and compression frame in Fig. 1;

Fig. 5 is the structural representation of formwork in the utility model embodiment 1;

Fig. 6 is the left side view of Fig. 5;

Figure 7 is a top view of Figure 5;

Fig. 8 is a schematic structural view of the outer card in Embodiment 1 of the present utility model;

Figure 9 is a top view of Figure 8;

Fig. 10 is a schematic structural view of the internal card in Embodiment 1 of the present utility model;

Figure 11 is a top view of Figure 10;

Fig. 12 is a schematic structural view of the compression frame in the utility model;

Figure 13 is a top view of Figure 12;

Fig. 14 is a schematic structural view of the bottom plug of the present invention;

FIG. 15 is a top view of FIG. 14 .

In the figure: 1, mold base; 11, outer card seat; 12, outer card; 121, outer card groove; 13, lifting lug; 14, lock; 15, inner card seat; 16, inner card; 161, inner Card groove;

2. Steel pipe; 3. Inlet connection block; 4. Splitter;

5. Compression frame; 51. Frame body; 52. Frame ear; 53. Frame bolt;

6. Bottom plug.

detailed description

The utility model is further described below in conjunction with specific embodiments.

Example 1

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a round steel casting steel mold includes a steel mold support device and a flow divider 4;

The steel form support device comprises a formwork 1, a steel pipe 2 arranged in the formwork 1 and a compression frame 5;

Formwork 1 bottom array is provided with 25 bottom plugs 6; Steel pipe 2 is vertically arranged on bottom plug 6, and the structure of bottom plug 6 is shown in Figure 14 and 15; As shown in Figure 5, 6 and 7, formwork 1 The opposite two sides are provided with two sets of up and down altogether four outer card holders 11; As shown in Figure 4, each outer card holder 11 is provided with an outer card 12; As shown in Figures 5 and 7, the inner wall of the formwork 1 There are eight pairs of inner card holders 15 in two groups up and down; as shown in Figure 4, each pair of inner card holders 15 is provided with an inner card 16; all outer cards 12 and inner cards 16 are all parallel and in the same group The outer card 12 or the inner card 16 are on the same horizontal plane; as shown in Figures 8 and 9, one side of the outer card 12 is provided with an outer card groove 121; as shown in Figures 10 and 11, both sides of the inner card 16 are provided with The inner card groove 161, the outer card groove 121 and the inner card groove 161 are corresponding in position; the outer card groove 121 and the inner card groove 161 are arc-shaped, and its radian corresponds to the arc surface radian of the outer wall of the steel pipe 2; As shown in Fig. 4, the steel pipe 2 is arranged between the outer clamping groove 121 and the inner clamping groove 161;

As shown in Figures 6 and 7, locks 14 are provided on the outer surfaces of the two opposite side walls at the upper end of the formwork 1;

As shown in Figures 12 and 13, the compression frame 5 includes a frame body 51, frame ears 52 arranged on both sides of the frame body 51, and frame bolts 53 arranged on the frame ears 52; as shown in Figure 2, the compression frame 5 It is connected with the lock port 14 through the frame bolt 53 and arranged above the formwork 1;

As shown in Figure 4 and Figure 7, the lock 14 is provided with a U-shaped opening of the device in the horizontal direction under the working body; the lower end of the frame bolt 53 is provided with external threads; the frame bolt 53 passes through the U on the lock 14. After the opening of the shape, it is fixed by a nut;

The top of the formwork 1 is provided with an inlet connection block 3; the inlet connection block 3 is connected to the upper end of the steel pipe 2, and the inlet connection block 3 includes an aluminum silicate felt and a riser; the number of risers in this embodiment is twenty-five, respectively On the twenty-five steel pipes 2; the aluminum silicate felt is covered on the riser; the aluminum silicate felt is provided with diversion holes corresponding to the riser;

In order to facilitate the steel mold of the present utility model to move and change positions through equipment such as a crane, the outer surface of the side wall at the upper end of the formwork 1 is also provided with lifting lugs 13;

The shunt 4 is a shunt disclosed in a patent document with the patent number ZL201220604882.9 and a publication date of May 22, 2013. In this embodiment, there are 25 shunt holes corresponding to the shunt 4; as shown in Figure 1, the shunt 4 is set Between the inlet connection block 3 and the compression frame 5, the inlet connection block 3 in this embodiment includes aluminum silicate felt, so the compression frame 5 compresses the shunt 4 on the silicone through the connection of the frame bolt 53 and the lock port 14. On the alumina felt, the diversion hole on the flow divider 4 corresponds to the diversion hole on the aluminum silicate felt.

A round steel casting mold of the utility model can cast a plurality of round steel at one time, which improves the casting efficiency of the round steel. At the same time, a casting steel mold support device with a reasonable design can be used to speed up the cooling speed of the round steel and improve the casting efficiency of the round steel. The quality of the round steel is produced, the steel pipe itself is protected from damage and deformation, and the service life of the round steel casting mold of the utility model is prolonged.

A method for casting round steel, comprising the steps of:

1) On the bottom of the formwork 1, set 5 bottom plugs 6 in the first row, 5 bottom plugs 6 in the second row, 5 bottom plugs 6 in the third row, and 5 bottom plugs 6 in the fourth row on the bottom side of the formwork 1. , 5 bottom plugs 6 in the fifth column;

2) Set the first row of five steel pipes 2 on the first row of five bottom plugs 6 in step 1), and fix the first group of outer cards 12 on the side of the formwork 1 close to the first row of five bottom plugs 6 , so that the outer card groove 121 on the first group of outer cards 12 fits with the outer wall of the steel pipe 2;

3) Set the first group of inner cards 16 on the side opposite to the outer card 12 of the first row of five steel pipes 2 on the formwork 1 in step 2), so that the inner card grooves 161 on the first group of inner cards 16 are aligned with the outer card 12. The outer wall of the steel pipe 2 is attached, and the first row of five steel pipes is clamped and positioned by the first set of outer cards 12 and the first group of inner cards 16;

4) Set the second row of five steel pipes 2 on the second row of five bottom plugs 6 in step 1), and set the second group of internal clips 16 on the formwork 1, so that the second group of internal clips 16 are aligned with the first group The inner card 16 clamps and positions the second row of 5 steel pipes 2;

5) Set the third row of five steel pipes 2 on the third row of five bottom plugs 6 in step 1), and set the third group of internal clips 16 on the formwork 1, so that the third group of internal clips 16 and the second group The inner card 16 clamps and positions five steel pipes 2 in the third row;

6) In step 1), 5 bottom plugs 6 of the fourth row are provided with 5 steel pipes 2 of the fourth row, and the fourth group of inner clips 16 is set on the formwork 1, so that the fourth group of inner clips 16 is connected with the third group. The inner card 16 clamps and positions the 5 steel pipes 2 in the fourth column;

7) Set five steel pipes 2 in the fifth row on the five bottom plugs 6 in the fifth row in step 1), and set the second group of outer cards 12 on the formwork 1, so that the second group of outer cards 12 and the fourth group The inner card 16 clamps and positions five steel pipes 2 in the fifth column;

8) A riser is set on the steel pipe 2, an aluminum silicate felt is covered on the riser, and diversion holes corresponding to the riser are opened on the aluminum silicate felt;

9) placing the splitter 4 on the aluminum silicate felt, so that the diversion hole on the splitter 4 corresponds to the diversion hole on the aluminum silicate felt;

10) Insert the upper frame bolt 53 of the compression frame 5 into the locking opening 14, so that the frame body 51 compresses the shunt 4, and fix the frame bolt 53 inserted into the locking opening 14 through a nut;

11) Pour molten steel into the diverter 4, so that the molten steel flows into the diversion hole on the aluminum silicate felt through the diversion hole, and directly falls into the bottom of the steel pipe 2 through the riser;

12) The molten steel falling into the bottom of the steel pipe 2 in step 11) fills the steel pipe 2 upwards from the bottom of the steel pipe 2 until the molten steel overflows the riser and stops;

13) Put the steel pipe 2 in step 12) to stand still, take out the round steel after cooling, and the casting of the round steel is completed.

As shown in Figure 1, in this embodiment, each group of outer cards and inner cards are two arranged up and down.

The round steel casting method carried out by applying the utility model improves the casting efficiency of the round steel, realizes the batch production of the round steel, and has high production quality, low production cost and small labor load.

Claims (6)

1. a round steel cast dies, it is characterised in that: comprise steel mould holder device and splitter (4); The steel pipe (2) that described steel mould holder device comprises mould bases (1) and is arranged in mould bases (1), also comprises and compresses frame (5); Described compression frame (5) is arranged on the top of mould bases (1); Described mould bases (1) bottom even is provided with some bottom plugs (6); Described steel pipe (2) is vertically arranged on bottom plug (6); Two sidepieces that described mould bases (1) is relative are provided with wild card (12), middle part is provided with interior card (16); Described wild card (12) is parallel with interior card (16); The side of described wild card (12) is provided with wild card groove (121); The both sides of described interior card (16) are provided with interior card groove (161), and the position of wild card groove (121) and interior card groove (161) is corresponding; Described wild card groove (121), interior card groove (161) are circular arc, and its radian is corresponding with steel pipe (2) outer wall circular arc face radian; Described steel pipe (2) is arranged between wild card groove (121) and interior card groove (161); Described mould bases (1) top is provided with entrance and connects block (3); Described entrance connects block (3) and is connected with the upper end of steel pipe (2), and described entrance connection block (3) is provided with the pod apertures corresponding with steel pipe (2) interior hole; Described splitter (4) is arranged on entrance and connects block (3) and compress between frame (5), and splitter is provided with tap hole on (4); It is corresponding that described tap hole connects the pod apertures on block (3) with entrance.

2. a kind of round steel cast dies according to claim 1, it is characterised in that: described entrance connects block (3) and comprises pure aluminium silicate felt and rising head; Described rising head is arranged on steel pipe (2); Described pure aluminium silicate felt covers on rising head; Described pure aluminium silicate felt is provided with the pod apertures corresponding with rising head.

3. a kind of round steel cast dies according to claim 1, it is characterised in that: two sidepieces that described mould bases (1) is relative are provided with wild card seat (11); Described wild card (12) is arranged on wild card seat (11); Described mould bases (1) inwall is provided with interior card seat (15); Described interior card (16) is arranged on interior card seat (15).

4. a kind of round steel cast dies according to claim 1, it is characterised in that: two sidewall outside surfaces that described mould bases (1) upper end is relative are provided with fore shaft (14); Described compression frame (5) comprises framework (51), the frame ear (52) of (51) both sides that are arranged on framework and the frame bolt (53) that is arranged on frame ear (52); Described compression frame (5) is connected with fore shaft (14) by frame bolt (53) and is arranged on splitter (4), and splitter (4) is pressed on entrance and connects on block (3).

5. a kind of round steel cast dies according to claim 4, it is characterised in that: described fore shaft (14) is provided with a U shape opening in the horizontal direction; Described frame bolt (53) lower end is provided with outside screw; Described frame bolt (53) is fixed by nut after the upper U shape opening of fore shaft (14).

6. a kind of round steel cast dies according to claim 5, it is characterised in that: the sidewall outside surface of described mould bases (1) upper end is also provided with hanger (13).