Cold drawing combination die

Abstract

The utility model discloses a cold drawing combined die, including: a ring, four petals, a plurality of adjustment blocks, a plurality of transition blocks and a fixed structure; the petals are located in the inner ring of the ring, the four petals are butted end to end to form a rounded rectangle, and the butt joints of two adjacent petals are located on each side of the rounded rectangle; the adjustment block can be inserted between two adjacent petals, and the surface of the adjustment block away from the ring and the surface of the side facing the ring are both matched with the surface of the petals; the transition block can be inserted between the ring and the four petals; the fixed structure detachably fixes the four petals in the inner ring of the ring. The utility model realizes changing the size of the inner ring of the rounded rectangle formed by the four petals by inserting the adjustment block between adjacent petals, thereby realizing the ability to process more than two sizes of crystallizer square copper molds, reducing the number of mold outer molds, and reducing economic costs.

Description

Technical Field

[0001] The utility model relates to the technical field of processing and manufacturing square copper molds of crystallizers, in particular to a cold drawing combined mold. Background Art

[0002] The processing and manufacturing of the square copper mold of the crystallizer is manufactured by cold drawing of the mold, that is, the core mold ensures the inner cavity size of the square copper mold of the crystallizer, and the outer mold ensures the outer contour size of the square copper mold of the crystallizer. On the one hand, the square copper mold of the crystallizer needs to undergo multiple cold drawing from the blank to the final finished product to improve the hardness of the square copper mold material. The same core mold is used for each cold drawing, because the remaining wall thickness of the copper mold is gradually thinned each time it is cold drawn, that is, the outer contour size is gradually reduced, so multiple outer molds need to be made. On the other hand, the specification span of the square copper mold of the crystallizer is relatively large, ranging from 100 square to 250 square, and the outer contour size of the square outer mold of the crystallizer ranges from 120×120 to 330×330, with hundreds of size changes, and each size change must correspond to an outer mold. Therefore, the processing and manufacturing of the existing square copper mold of the crystallizer has the problems of a large number of mold outer molds and high economic costs. Utility Model Content

[0003] The utility model provides a cold drawing combined die to solve the technical problems of a large number of die outer dies and high economic cost in the processing and manufacturing of the existing crystallizer square copper die.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] A cold drawing combined die comprises: a ring, four petals, a plurality of adjustment blocks, a plurality of transition blocks and a fixing structure; the petals are located in the inner ring of the ring, the four petals are butted end to end to form a rounded rectangle, and the butt joints of two adjacent petals are located on each side of the rounded rectangle; the adjustment block can be inserted between two adjacent petals, and the surface of the adjustment block away from the ring and the surface of the adjustment block facing the ring are both matched with the surface of the petals; the transition block can be inserted between the ring and the four petals; the fixing structure detachably fixes the four petals in the inner ring of the ring.

[0006] Furthermore, four adjustment blocks form a group, and there are multiple groups of adjustment blocks, and the thickness of each group of adjustment blocks is different.

[0007] Furthermore, two adjacent petal blocks are each provided with a groove, the adjusting block is provided with an anti-drop pin, both ends of the anti-drop pin respectively pass through the adjusting block, and both ends of the anti-drop pin are respectively inserted into the grooves on the two adjacent petal blocks.

[0008] Furthermore, the inner ring of the ring band is set as a slope, the four petals facing the side of the ring band are set as slopes, the surface of the transition block away from the side of the ring band and the surface facing the side of the ring band are set as slopes, and the slopes of the ring band, the transition block and the petals cooperate with each other; the fixed structure includes a pressure plate, which is fixed on the ring band, and the pressure plate presses the petals and the adjustment block against the slope of the ring band.

[0009] Furthermore, the pressure plate extends to the grooves on two adjacent petals.

[0010] Furthermore, the transition block is provided with various thicknesses.

[0011] Beneficial effects:

[0012] The cold drawing combination die disclosed in the present application is configured to insert adjustment blocks between adjacent petals to change the inner ring size of the rounded rectangle formed by the four petals, thereby realizing the ability to process more than two sizes of crystallizer square copper molds, which can reduce the number of mold outer molds and reduce economic costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a structural schematic diagram of the cold drawing combined die disclosed in the utility model;

[0015] Figure 2 It is a cross-sectional view of the cold drawing combined die disclosed in the utility model;

[0016] Figure 3 It is a schematic diagram of the cold drawing combined die and the core die disclosed in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the cold drawing combined die piece disclosed in the utility model;

[0018] Figure 5 The utility model discloses a schematic diagram of the structure of the cold drawing combined die adjustment block.

[0019] 1. Ring tension ring; 2. Petal block; 3. Adjustment block; 4. Transition block; 5. Anti-drop pin; 6. Pressure plate. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Combination Figure 1 and Figure 2 As shown, Figure 1 It is a schematic diagram of the cold drawing combined die structure equipped with an adjustment block 3. Figure 2 It is a cross-sectional view of a cold drawing combination die equipped with an adjustment block 3. The cold drawing combination die includes: a ring 1, four petals 2, a plurality of adjustment blocks 3, a plurality of transition blocks 4 and a fixing structure; the petals 2 are located in the inner ring of the ring 1, and the four petals 2 are placed end to end to form a rounded rectangle, and the joints of two adjacent petals 2 are located on each side of the rounded rectangle; the adjustment block 3 can be inserted between two adjacent petals 2, and the surface of the adjustment block 3 away from the ring 1 and the surface facing the ring 1 are matched with the surface of the petals 2; the transition block 4 can be inserted between the ring 1 and the four petals 2; the fixing structure detachably fixes the four petals 2 in the inner ring of the ring 1. Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, Figure 3 The figure is a schematic diagram of the cold drawing combination mold without the adjustment block 3 and the core mold. By inserting the adjustment block 3 between two adjacent petal blocks 2, the size of the rounded rectangle formed by the four petal blocks 2 and the adjustment block 3 is increased relative to the rounded rectangle formed by the four petal blocks 2 being butted end to end, and the inner ring diameter of the cold drawing combination mold becomes larger, so that the cold drawing combination mold can process the crystallizer square copper mold with a larger outer contour size. Because the outer mold device needs to be fixed in one position and remain stationary during the cold drawing process, the ring band 1 fixes the scattered petal blocks 2 and the adjustment block 3. After adding the adjustment block 3, the gap between the petal block 2 and the ring band 1 will be different. The transition block 4 makes up for this gap, so that the ring band 1, the petal block 2, the adjustment block 3 and the transition block 4 form a whole for processing the crystallizer square copper mold. The cold drawing combination mold includes at least two sizes, one with the adjustment block 3 inserted and the other without the adjustment block 3 inserted, which can reduce the number of outer molds of the mold and reduce economic costs. Furthermore, compared with the existing outer mold which needs to be replaced entirely after being damaged, the cold drawing combination mold can replace the corresponding damaged part, and the maintenance and use costs are lower.

[0022] Preferably, four adjustment blocks 3 form a group, and there are multiple groups of adjustment blocks 3. The thickness of each group of adjustment blocks 3 is different. By inserting adjustment blocks 3 of different thicknesses, different inner ring diameters of the cold drawing combined die are obtained, thereby achieving compatibility with more sizes. Moreover, the processing and manufacturing cost of scattered small parts such as adjustment blocks 3 is low compared to the entire outer die, which is conducive to reducing economic costs.

[0023] Preferably, grooves are provided on two adjacent petal blocks 2, and an anti-drop pin 5 is provided on the adjustment block 3. Both ends of the anti-drop pin 5 pass through the adjustment block 3 respectively, and both ends of the anti-drop pin 5 are respectively inserted into the grooves on the two adjacent petal blocks 2. The anti-drop pin 5 rests against the bottom of the groove, which can prevent the adjustment block 3 from falling and realize the positioning of the adjustment block 3.

[0024] Specifically, a groove is provided on the surface of the petal block 2 on the side where the core mold is inserted, and the groove extends to the end surface of the petal block 2. A pin hole is provided on the adjustment block 3, and the anti-drop pin 5 passes through the pin hole. The two ends of the anti-drop pin 5 are located on both sides of the adjustment block 3. When the adjustment block 3 is inserted into two adjacent petal blocks 2, the two ends of the anti-drop pin 5 are respectively inserted into the grooves on the two petal blocks 2. The anti-drop pin 5 makes the installation process of the adjustment block 3 simple, and the positioning of the adjustment block 3 is stable and reliable.

[0025] Preferably, the inner ring of the ring band 1 is set as an inclined surface, so that the diameter of the inner ring of the ring band 1 gradually narrows along the direction of the core mold insertion. The four petals 2 are set as inclined surfaces on the side facing the ring band 1, and the surface of the transition block 4 away from the side of the ring band 1 and the surface facing the side of the ring band 1 are set as inclined surfaces. The inclined surfaces of the ring band 1, the inclined surfaces of the transition block 4 and the inclined surfaces of the petals 2 cooperate with each other. When a transition block 4 is provided between the ring band 1 and the petals 2, the inclined surface of the ring band 1 supports and restricts the petals 2 through the inclined surface of the transition block 4; when no transition block 4 is provided between the ring band 1 and the petals 2, the inclined surface of the ring band 1 directly supports the petals 2; the four petals 2 and the adjustment block 3 are prevented from scattering by the inclined surface cooperation, and the support force is provided for the petals 2 during cold drawing. The fixing structure includes a pressing plate 6, which is fixed to the surface of the ring band 1 on the side of the core mold insertion by screws, and the pressing plate 6 presses the petals 2 and the adjustment block 3 on the inclined surface of the ring band 1. As the inner diameter of the ring band 1 gradually narrows, after the pressure plate 6 presses the petal block 2 and the adjustment block 3, the petal block 2 and the adjustment block 3, the transition block 4 and the ring band 1 are tightly attached to each other, thereby achieving reliable fixation of the petal block 2 and the adjustment block 3 and ensuring that the ring band 1, the petal block 2, the adjustment block 3 and the transition block 4 form a whole.

[0026] Preferably, the pressing plate 6 extends to the grooves on two adjacent petal blocks 2, and the pressing plate 6 can block the anti-drop pin 5 to prevent the adjusting block 3 from being squeezed and protruding during the assembly process of the cold drawing combined die.

[0027] Specifically, the pressing plate 6 corresponds to the adjusting block 3 , so that the pressing plate 6 can reliably abut the adjusting block 3 and the petal blocks 2 on both sides, ensuring that the adjusting block 3 and the petal blocks 2 on both sides are evenly pressed, thereby ensuring assembly accuracy.

[0028] Specifically, a long hole is opened on the pressing plate 6, and the screw passes through the long hole and is connected to the ring tension ring 1, so that the pressing plate 6 can be adjusted during the assembly process.

[0029] Preferably, the transition block 4 is provided with various thicknesses, and the gap between the petal block 2 and the ring tensioner 1 in different states is compensated by a plurality of transition blocks 4 of the same thickness or a plurality of transition blocks 4 of different thicknesses.

[0030] Specifically, after calculation and design, only three sets of ring stretchers 1 and petal blocks 2 are needed to cover all specifications and dimensions of the outer contour of the square copper mold, thereby realizing modularization and standardization of the outer mold, making the installation, transportation and lifting of the outer mold more labor-saving, and saving the production and maintenance and replacement costs.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. Cold drawing combined die, characterized in that: include: A ring tensioner (1), four petal blocks (2), a plurality of adjustment blocks (3), a plurality of transition blocks (4) and a fixing structure; The petal blocks (2) are located in the inner circle of the ring tension ring (1), and the four petal blocks (2) are butted end to end to form a rounded rectangle, and the butt joints of two adjacent petal blocks (2) are located on each side of the rounded rectangle; The adjusting block (3) can be inserted between two adjacent petal blocks (2), and the surface of the adjusting block (3) on the side away from the ring band (1) and the surface on the side facing the ring band (1) both match the surface of the petal block (2); The transition block (4) can be inserted between the ring band (1) and the four petal blocks (2); The fixing structure detachably fixes the four petals (2) in the inner ring of the ring tensioner (1).

2. The cold drawing combined die according to claim 1, characterized in that: Four of the adjustment blocks (3) form a group, and a plurality of groups of the adjustment blocks (3) are provided, and the thickness of the adjustment blocks (3) in each group is different.

3. The cold drawing combined die according to claim 1, characterized in that: Two adjacent petal blocks (2) are each provided with a groove, and the adjustment block (3) is provided with an anti-drop pin (5), both ends of the anti-drop pin (5) respectively pass through the adjustment block (3), and both ends of the anti-drop pin (5) are respectively inserted into the grooves on the two adjacent petal blocks (2).

4. The cold drawing combined die according to claim 3, characterized in that: The inner ring of the ring band (1) is configured as an inclined surface, the four petal blocks (2) facing the side of the ring band (1) are configured as inclined surfaces, the surface of the transition block (4) away from the side of the ring band (1) and the surface facing the side of the ring band (1) are configured as inclined surfaces, and the inclined surfaces of the ring band (1), the transition block (4) and the petal blocks (2) cooperate with each other; the fixing structure includes a pressure plate (6), the pressure plate (6) is fixed on the ring band (1), and the pressure plate (6) presses the petal blocks (2) and the adjustment block (3) against the inclined surface of the ring band (1).

5. The cold drawing combined die according to claim 4, characterized in that: The pressure plate (6) extends to the grooves on two adjacent petals (2).

6. The cold drawing combined die according to claim 1, characterized in that: The transition block (4) is provided with various thicknesses.

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