Polycrystalline die with inner core convenient to replace

Abstract

The utility model discloses a polycrystalline die with an inner core convenient to replace, belongs to the technical field of polycrystalline dies, and aims to solve the problem that in the prior art, a movable column inserting mode can play a limiting role, but the stabilizing force is not enough. Comprising a polycrystalline mold body, an inner core and a locking assembly, the inner core is movably arranged in the middle of the polycrystalline mold body, and the locking assembly is arranged on the outer side of the polycrystalline mold body; the locking assembly comprises a limiting block, connecting rods and a fixing rod, the fixing rod is horizontally arranged, the two ends of the fixing rod are sleeved with the connecting rods correspondingly, the connecting rods horizontally slide along the fixing rod, the limiting block is arranged at the ends, away from the fixing rod, of the connecting rods, and a penetrating hole allowing the limiting block to penetrate is formed in the outer wall of the polycrystalline mold body; a limiting hole matched with the limiting block is formed in the outer wall of the inner core. According to the polycrystalline mold with the inner core convenient to replace, the fixing mode of the inner core is more stable, the limiting block does not move in other modes except for transversely moving the limiting block, in other words, the inner core cannot fall off in the swinging process of the polycrystalline mold body, and the use stability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of polycrystalline molds, and in particular relates to a polycrystalline mold with an inner core that is convenient to replace. Background Art

[0002] Molds are used in industrial production to obtain various molds and tools for the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. In short, molds are tools used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the formed material. The prior art discloses a continuous cold-drawing polycrystalline mold with an easily replaceable inner core, application number: CN201921091280.6. In order to solve the problem that the existing polycrystalline wire drawing die needs to be replaced after internal wear during use, which causes economic waste, lacks flexible replacement methods, and is not convenient for improving the use effect. The combined use of accessories can be used to connect and fix the inner groove opened on the top plate with the rotating rod with a column groove added to the inner core, and the movable column on the outer shell is plugged into the main groove to further stabilize it, so that the inner core and the inner cavity of the outer shell are flexibly connected, which is convenient for combined replacement, reduces the replacement range of accessories, and improves economic efficiency. However, although the method of plugging in the movable column can play a limiting role, the stabilizing force is insufficient. Therefore, when the polycrystalline mold cannot maintain a horizontal state, the movable column is easy to slip, so the inner core is at risk of falling, which cannot meet the use requirements. Utility Model Content

[0003] (1) Technical issues to be solved

[0004] In view of the shortcomings of the prior art, the purpose of the present utility model is to provide a polycrystal mold that is convenient for replacing the inner core, aiming to solve the problem that the prior art uses a movable column plug-in method that can limit the position but has insufficient stabilizing force. Therefore, when the polycrystal mold cannot maintain a horizontal state, the movable column is easy to slide down, so there is a risk of the inner core falling off.

[0005] (2) Technical solution

[0006] In order to solve the above technical problems, the utility model provides a polycrystalline mold that is convenient for replacing the inner core, including a polycrystalline mold body, an inner core and a locking assembly, wherein the inner core is movably arranged in the center of the polycrystalline mold body, and the locking assembly is arranged on the outside of the polycrystalline mold body; the locking assembly includes a limit block, a connecting rod, and a fixed rod, wherein the fixed rod is arranged horizontally, and the connecting rod is respectively sleeved on both ends of the fixed rod and slides horizontally along the fixed rod, the limit block is arranged at one end of the connecting rod away from the fixed rod, a through hole for the limit block to penetrate is provided on the outer wall of the polycrystalline mold body, and a limit hole adapted for the limit block is provided on the outer wall of the inner core. The fixing method of the inner core is more stable, and the limit block has no other movable method except for the horizontal movement of the limit block, that is, the inner core cannot fall off during the swinging of the polycrystalline mold body, and the stability of use is high.

[0007] Preferably, the fixing rod has a fixing block in the middle, a clamping block and a pulling block are slidably passed through the fixing block, a connecting block is provided between the clamping block and the pulling block, and the connecting block connects the clamping block and the pulling block in series and slides synchronously.

[0008] Preferably, a spring is fixedly connected to a side of the clamping block facing the pulling block, and the springs are distributed at intervals on both sides of the connecting block.

[0009] Preferably, the fixing block is a hollow structure, and a supporting block is protruded from the inner wall, the supporting block is fixedly connected to one end of the spring away from the clamping block, and the outer wall of the polycrystal mold body has a clamping groove adapted to be clamped with the clamping block.

[0010] Preferably, a screw rod is rotatably mounted below the fixing rod plate, and the screw rod is spaced apart from the fixing rod.

[0011] Preferably, a bottom block is protruding from the bottom of the connecting rod, and a threaded hole is formed on the bottom block.

[0012] Preferably, the thread of the outer wall of the screw rod has the fixed block as the midpoint, and the two ends are arranged oppositely, and the screw rod passes through the threaded hole to be threadedly connected to the bottom block.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] Thanks to the setting of the locking component, the utility model can limit and fix the inner core in the polycrystalline mold body, so that the inner core has the function of being replaceable, which is convenient for timely replacement after the inner core is worn, and the setting of the opposite limit block makes the fixing method of the inner core more stable. Except for the horizontal movement of the limit block, the limit block has no other movable method, that is, when the polycrystalline mold body is swinging, the inner core cannot fall off, and the use stability is high. The locking component and the polycrystalline mold body are separated. If the polycrystalline mold body is damaged, the locking component can be replaced with a new polycrystalline mold body for use, which further saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application 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 only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the inner core and the polycrystalline mold body being separated;

[0019] Figure 3 It is a schematic diagram of the locking assembly structure;

[0020] Figure 4 for Figure 3 Enlarged structural diagram at A in the middle.

[0021] The markings in the attached drawings are: 1. polycrystal mold body; 2. locking assembly; 3. inner core; 4. limiting hole; 5. through hole; 7. limiting block; 8. bottom block; 9. connecting rod; 10. fixing rod; 11. screw; 12. clamping block; 13. connecting block; 14. pulling block; 15. spring; 16. supporting block; 17. fixing block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0023] This specific embodiment is a polycrystalline mold that is convenient for replacing the inner core, and its structural schematic diagram is as follows Figure 1As shown, it includes a polycrystalline mold body 1, an inner core 3 and a locking assembly 2, wherein the inner core 3 is movably arranged at the center of the polycrystalline mold body 1, and the locking assembly 2 is arranged on the outside of the polycrystalline mold body 1;

[0024] Reference Figure 2 A through hole 5 for the limiting block 7 to penetrate is provided on the outer wall of the polycrystalline mold body 1 , and a limiting hole 4 adapted to the limiting block 7 is provided on the outer wall of the inner core 3 .

[0025] Reference Figure 3 The locking assembly 2 includes a limit block 7, a connecting rod 9, and a fixed rod 10. The fixed rod 10 is horizontally arranged, and the connecting rod 9 is respectively sleeved on both ends of the fixed rod 10 and slides horizontally along the fixed rod 10. The limit block 7 is arranged at one end of the connecting rod 9 away from the fixed rod 10. A screw rod 11 is rotatably installed below the fixed rod 10 plate, and the screw rod 11 is spaced apart from the fixed rod 10. A bottom block 8 is protruding from the bottom of the connecting rod 9, and a threaded hole is opened on the bottom block 8. The thread of the outer wall of the screw rod 11 takes the fixed block 17 as the midpoint, and the two ends are arranged oppositely. The screw rod 11 passes through the threaded hole and is threadedly connected to the bottom block 8.

[0026] Reference Figure 4 The fixing rod 10 has a fixing block 17 in the middle, and a block 12 and a pull block 14 are slidably passed through the fixing block 17. A connecting block 13 is provided between the block 12 and the pull block 14. The connecting block 13 connects the block 12 and the pull block 14 in series and slides synchronously. A spring 15 is fixedly connected to the side of the block 12 facing the pull block 14, and the springs 15 are distributed at intervals on both sides of the connecting block 13. The fixing block 17 is a hollow structure, and a support block 16 is protruded on the inner wall. The support block 16 is fixedly connected to the end of the spring 15 away from the block 12. The outer wall of the polycrystalline mold body 1 has a card slot adapted to the block 12. After the inner box is separated from the interior of the polycrystalline mold body 1, a new inner core 3 can be reinstalled, and the limiting hole 4 on the outer wall of the inner core 3 is aligned with the perforation 5, and then the screw 11 is rotated in the opposite direction, so that the two connecting rods 9 are relatively close to each other under force, and then the block 12 is inserted into the limiting hole 4 to fix the inner core 3 in the polycrystalline mold body 1.

[0027] Working principle: During use, when the inner core 3 needs to be replaced, the screw 11 below the fixed rod 10 is rotated. When the screw 11 is rotated, the bottom block 8 outside it is forced to move along the screw 11, and the connecting rod 9 above the bottom block 8 moves along the fixed rod 10, and then the limit block 7 withdraws from the limit hole 4 on the side wall of the inner core 3 and retracts into the through hole 5, and then the inner core 3 can be separated from the polycrystalline mold body 1, and then the inner box is separated from the inside of the polycrystalline mold body 1, and the new inner core 3 can be reinstalled, and the limit hole 4 on the outer wall of the inner core 3 is aligned with the through hole 5, and then the screw 11 is rotated in the opposite direction, so that the two connecting rods 9 are forced to be relatively close, and then the block 12 is inserted into the limit hole 4 to fix the inner core 3 in the polycrystalline mold body 1;

[0028] The locking component 2 and the polycrystalline mold body 1 are separately set. After the polycrystalline mold body 1 is produced, the locking component 2 is combined with it so that the inner core 3 can be replaced. The disassembly and assembly method of the locking component 2 is as follows: first pull the pull block 14, and the pull block 14 drives the card block 12 to leave the card groove on the outer wall of the polycrystalline mold body 1 through the connecting block 13. Due to the setting of the support block 16, the spring 15 is compressed and the card block 12 approaches the support block 16. When the card block 12 leaves the polycrystalline mold body 1, the fixing rod 10 can be removed from the side of the polycrystalline mold body 1. Otherwise, the card block 12 is inserted into the card groove, so that the fixing rod 10 can be fixed on one side of the polycrystalline mold body 1 to limit the inner core 3.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A polycrystalline mold with an easily replaceable inner core, comprising a polycrystalline mold body (1), an inner core (3) and a locking assembly (2), characterized in that: The inner core (3) is movably arranged at the center of the polycrystalline mold body (1), and the locking assembly (2) is arranged on the outside of the polycrystalline mold body (1); The locking assembly (2) comprises a limit block (7), a connecting rod (9), and a fixed rod (10); the fixed rod (10) is arranged horizontally, and the connecting rod (9) is respectively sleeved on both ends of the fixed rod (10) and slides horizontally along the fixed rod (10); the limit block (7) is arranged at one end of the connecting rod (9) away from the fixed rod (10); a through hole (5) for the limit block (7) to penetrate is provided on the outer wall of the polycrystalline mold body (1); and a limit hole (4) adapted to the limit block (7) is provided on the outer wall of the inner core (3).

2. A polycrystalline mold with convenient inner core replacement according to claim 1, characterized in that: The fixing rod (10) has a fixing block (17) in the middle, a clamping block (12) and a pulling block (14) are slidably passed through the interior of the fixing block (17), a connecting block (13) is provided between the clamping block (12) and the pulling block (14), and the connecting block (13) connects the clamping block (12) and the pulling block (14) in series so as to slide synchronously.

3. A polycrystalline mold for convenient replacement of inner core according to claim 2, characterized in that: A spring (15) is fixedly connected to one side of the clamping block (12) facing the pulling block (14), and the springs (15) are distributed at intervals on both sides of the connecting block (13).

4. A polycrystalline mold with convenient inner core replacement according to claim 3, characterized in that: The fixing block (17) is a hollow structure, and a supporting block (16) is protruding from the inner wall. The supporting block (16) is fixedly connected to an end of the spring (15) away from the clamping block (12). The outer wall of the polycrystalline mold body (1) has a clamping groove adapted to be clamped with the clamping block (12).

5. A polycrystalline mold with convenient inner core replacement according to claim 1, characterized in that: A screw rod (11) is rotatably mounted below the fixing rod (10) plate, and the screw rod (11) and the fixing rod (10) are spaced apart.

6. A polycrystalline mold with convenient inner core replacement according to claim 5, characterized in that: A bottom block (8) is protruding from the bottom of the connecting rod (9), and a threaded hole is formed on the bottom block (8).

7. A polycrystalline mold with convenient inner core replacement according to claim 6, characterized in that: The threads on the outer wall of the screw rod (11) are centered at the fixed block (17) and are arranged at opposite ends. The screw rod (11) passes through the threaded hole and is threadedly connected to the bottom block (8).

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