Anti-cracking combined type core structure

Abstract

The utility model discloses an anti-cracking combined type mold core structure which comprises an upper mold body and a lower mold body, the upper mold body and the lower mold body are respectively provided with a mold core and a mold cavity which correspond to each other, vertical shafts are arranged on two sides of the outer portion of the lower mold body, and fastening blocks attached to the outer wall of the lower mold body are arranged at the upper ends and the lower ends of the vertical shafts. Connecting parts are arranged on the corresponding sides of the outer ends of the fastening blocks, a double-screw bolt is jointly inserted between a group of connecting parts corresponding to the connecting parts, locking nuts are connected to the exteriors of the two ends of the double-screw bolt, and reinforcing blocks and penetrating openings matched with the reinforcing blocks are arranged on the connecting parts respectively; and a clamping block clamped with the stud is movably arranged at the outer end of the reinforcing block. The anti-cracking combined core structure can support and reinforce the outside of the cylindrical bottom die, prevents the inner wall of the cavity of the bottom die from cracking due to excessive extrusion force, and is beneficial to prolonging the service life of the die.

Description

Technical Field

[0001] The utility model relates to the technical field of mold cores, in particular to an anti-cracking combined core structure. Background Art

[0002] Mold core is a mold term in the manufacturing industry. The parts that form the product space are called molding parts, and the (mold) parts on the inner surface of the molded product are called cores, also known as sub-molds or back molds. From the appearance of the product mold, the convex part is the core, and the concave part is the cavity. The core and cavity appear in pairs. The cavity and core of the mold are combined to form a space that is the shape of the mold product.

[0003] During use, the existing combined mold core has concentrated stress, which causes the blank to generate outward expansion force when the core and the cavity are molded together, thereby squeezing the inner wall of the cavity. Since some cylindrical bottom molds lack a stable supporting reinforcement structure on the outside, cracking problems may easily occur, reducing their service life. Utility Model Content

[0004] The utility model aims to provide an anti-cracking combined core structure to solve the problem raised in the above background technology that the current combined mold core is relatively concentrated in use, which causes the cylindrical bottom mold to be unstable and prone to cracking when the core and the cavity are molded together.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-cracking combined core structure, comprising an upper mold body and a lower mold body, wherein the upper mold body and the lower mold body are respectively provided with corresponding cores and cavities, vertical shafts are provided on both sides of the outside of the lower mold body, and the upper and lower ends of the vertical shafts are provided with fastening blocks attached to the outer wall of the lower mold body, and the corresponding sides of the outer ends of the fastening blocks are provided with connecting parts, and studs are interspersed between the corresponding groups of the connecting parts, and the external ends of the two ends of the studs are connected with locking nuts, and the connecting parts are respectively provided with reinforcement blocks and through-holes that match the reinforcement blocks, and the outer ends of the reinforcement blocks are movably provided with clamping blocks that are clamped with the studs.

[0006] Preferably, the reinforcement blocks are distributed alternately up and down on each group of connecting parts, and the reinforcement blocks and the connecting parts form an integral structure.

[0007] Preferably, the outer end of the reinforcement block is provided with a notch matching with the clamping block, and the inner end of the clamping block is hinged to the inner wall of the notch at the outer end of the reinforcement block through a pin shaft, and the outer end of the clamping block is provided with a clamping socket matching with the stud structure.

[0008] Preferably, a magnet sheet is provided on the inner side of the inner end of the clamping block, and an inlay matching the magnet sheet is provided on the inner wall of the recess at the outer end of the reinforcement block.

[0009] Preferably, a movable sleeve sleeved on the outside of the vertical shaft is fixed in the middle of the outer side of the fastening block, and damping rings are provided at the edges of the upper and lower ends of the movable sleeve.

[0010] Preferably, the fastening block is an overall arc-shaped structure and is provided in two groups, and a plurality of reinforcing ribs are evenly provided on the outer wall of the fastening block.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the anti-cracking combined core structure can support and reinforce the outside of the cylindrical bottom mold, preventing the inner wall of the cavity of the bottom mold from being cracked due to excessive extrusion pressure, which is beneficial to extending the service life of the mold. The anti-cracking combined core structure is provided with two sets of fastening blocks on the outside of the lower mold body. When each set of fastening blocks is docked through the connecting part, the stud and the locking nut first cooperate with each other to pre-tighten the connecting part. At the same time, the connecting part will also drive the two reinforcement blocks to interlock and penetrate and use the clamping block to reinforce the locking nut, so that the two sets of fastening blocks are enclosed on the outside of the lower mold body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of an anti-cracking combined core structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the interconnected structure of the connecting parts of an anti-cracking combined core structure of the utility model;

[0014] Figure 3 It is a side view structural diagram of the connection part of an anti-cracking combined core structure of the utility model;

[0015] Figure 4 The utility model is a schematic diagram of the assembly structure of the fastening blocks of the anti-cracking combined core structure.

[0016] In the figure: 1. upper mold body; 2. lower mold body; 3. vertical shaft; 4. movable sleeve; 5. fastening block; 6. connecting part; 7. stud; 8. locking nut; 9. reinforcement block; 10. clamping block; 11. strengthening rib; 12. magnet sheet; 13. inlay. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-4The utility model provides a technical solution: an anti-cracking combined core structure, including an upper mold body 1 and a lower mold body 2, the upper mold body 1 and the lower mold body 2 are respectively provided with corresponding cores and cavities, vertical shafts 3 are provided on both sides of the outer side of the lower mold body 2, and the upper and lower ends of the vertical shaft 3 are provided with fastening blocks 5 that are attached to the outer wall of the lower mold body 2, and the corresponding side of the outer end of the fastening block 5 is provided with a connecting part 6, and the connecting part 6 and the fastening block 5 form an integral structure, and a stud 7 is interspersed through a hole between the corresponding groups of the connecting parts 6, and the outer ends of the two ends of the stud 7 are connected with locking nuts 8, and the connecting part 6 is respectively provided with a reinforcement block 9 and a through-hole that matches the reinforcement block 9, and the outer end of the reinforcement block 9 is movably provided with a clamping block 10 that is clamped with the stud 7. The upper mold body 1 and the lower mold body of this structure When the two vertical shafts 3 cooperate with each other to close the mold, the two vertical shafts 3 can be placed on both sides of the outside of the lower mold body 2 in advance and the fastening blocks 5 can be attached to the outer wall of the lower mold body 2. When the fastening blocks 5 of the same group are docked through the connecting parts 6, the studs 7 can be inserted into the corresponding group of connecting parts 6 and fixed at both ends with locking nuts 8. At the same time, when the corresponding group of connecting parts 6 is docked, the two reinforcing blocks 9 will be synchronously driven to be staggered and penetrated, and the clamping block 10 will be turned out at the outer end of the reinforcing block 9 to be engaged with the studs 7 at the corresponding position, so as to reinforce the outer side of the locking nut 8 during fixation, so that the two groups of fastening blocks 5 can be firmly locked on the outer wall of the lower mold body 2, which effectively supports and reinforces the lower mold body 2, and prevents the inner wall of the cavity of the lower mold body 2 from being cracked due to excessive stress. , which is beneficial to prolong the service life of the mold. The reinforcement blocks 9 are staggered up and down on each group of connecting parts 6, and the reinforcement blocks 9 and the connecting parts 6 form an integrated structure. The reinforcement blocks 9 of this structure can enhance the firmness of each group of connecting parts 6 when docking through the staggered connection, so that the stability of each group of fastening blocks 5 connected together is higher. The outer end of the reinforcement block 9 is provided with a notch that matches the clamping block 10, and the inner end of the clamping block 10 is hinged to the inner wall of the notch at the outer end of the reinforcement block 9 through a pin shaft. The clamping block 10 of this structure can be conveniently retracted and released into the notch at the outer end of the reinforcement block 9 to ensure that the reinforcement block 9 passes smoothly through the through-hole on the connecting part 6. The outer end of the clamping block 10 is provided with a bayonet that matches the structure of the stud 7. A toothed tooth or elastic ring structure can be provided on the inner wall of the bayonet to improve the clamping force. In order to ensure the stability of the corresponding position of the stud 7, a magnet sheet 12 is provided on the inner side of the inner end of the clamping block 10, and an inlay 13 which matches the magnet sheet 12 is provided on the inner wall of the notch at the outer end of the reinforcement block 9. When the clamping block 10 of this structure is received in the notch at the outer end of the reinforcement block 9, the magnet sheet 12 can be driven to be adsorbed inside the inlay 13 to prevent the clamping block 10 from automatically flipping out and affecting the penetration of the reinforcement block 9 through the clamping block 10. A movable sleeve 4 which is sleeved on the outside of the vertical shaft 3 is fixed in the middle of the outer side of the fastening block 5. A tightening screw is provided on the outer side of the movable sleeve 4, and damping rings are provided at the edges of the upper and lower ends of the movable sleeve 4. The fastening block 5 of this structure can slide on the vertical shaft 3 through the movable sleeve 4 for vertical movement, so as to quickly adjust to a suitable position for supporting and reinforcing the lower mold body 2.The damping rings at the upper and lower edges of the movable sleeve 4 can improve the stability of the movable sleeve 4 when sliding on the vertical shaft 3. The fastening block 5 is an arc-shaped structure and is provided with two groups. A plurality of reinforcing ribs 11 are evenly provided on the outer wall of the fastening block 5. A rubber pad is bonded and fixed on the inner wall of the fastening block 5. The two groups of fastening blocks 5 of this structure can play a good supporting and reinforcing role for the lower mold body 2 as a whole. The reinforcing ribs 11 can enhance the strength of the fastening block 5 itself, and the rubber pad on the inner wall of the fastening block 5 can protect the lower mold body 2.

[0019] Working principle: When using the anti-cracking combined core structure, first, when the upper mold body 1 and the lower mold body 2 cooperate with each other through the core and the cavity to close the mold, the operator can pre-place the two vertical shafts 3 on both sides of the outside of the lower mold body 2, and then slide each fastening block 5 on the vertical shaft 3 through the movable sleeve 4 to adjust the vertical position until the positions of the fastening blocks 5 of each group correspond to each other and then fit them to the outer wall of the lower mold body 2. At this time, the fastening blocks 5 of the same group can be docked through the connecting part 6. When a group of corresponding connecting parts 6 is docked, it will simultaneously drive the two reinforcement blocks 9 to stagger and penetrate until Until the inner wall of the fastening block 5 is completely in contact with the outer wall of the lower mold body 2, the stud 7 is inserted into the connecting part 6 of the same group and fixed at both ends with two locking nuts 8. When the locking nut 8 is locked on the outer side of the connection between the stud 7 and the connecting part 6, the clamping block 10 is flipped out from the recess at the outer end of the reinforcement block 9 until the bayonet at the outer end of the clamping block 10 is engaged with the stud 7 at the corresponding position to limit the outer side of the locking nut 8. In this way, the two groups of fastening blocks 5 will be firmly locked on the outer wall of the lower mold body 2, achieving effective support and reinforcement, thereby completing a series of tasks.

[0020] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or 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 invention shall be included in the protection scope of the present invention.

Claims

1. An anti-cracking combined core structure, comprising an upper mold body (1) and a lower mold body (2), wherein the upper mold body (1) and the lower mold body (2) are respectively provided with a corresponding core and a cavity, characterized in that: Vertical shafts (3) are provided on both sides of the exterior of the lower mold body (2), and fastening blocks (5) are provided at the upper and lower ends of the vertical shaft (3) and are fitted on the outer wall of the lower mold body (2). A connecting portion (6) is provided on one side corresponding to the outer end of the fastening block (5), and a stud (7) is inserted between a group of corresponding connecting portions (6). Locking nuts (8) are connected to the exterior of both ends of the stud (7), and a reinforcing block (9) and a through hole that matches the reinforcing block (9) are respectively provided on the connecting portion (6), and a clamping block (10) that is movably connected to the stud (7) is provided at the outer end of the reinforcing block (9).

2. The anti-cracking combined core structure according to claim 1, characterized in that: The reinforcement blocks (9) are distributed in an up-and-down staggered manner on each group of connection parts (6), and the reinforcement blocks (9) and the connection parts (6) form an integral structure.

3. The anti-cracking combined core structure according to claim 1, characterized in that: The outer end of the reinforcement block (9) is provided with a notch matching with the clamping block (10), and the inner end of the clamping block (10) is hinged to the inner wall of the notch at the outer end of the reinforcement block (9) via a pin shaft, and the outer end of the clamping block (10) is provided with a clamping notch matching with the structure of the stud (7).

4. The anti-cracking combined core structure according to claim 3, characterized in that: A magnet sheet (12) is provided on the inner side of the inner end of the clamping block (10), and an inlay (13) matching the magnet sheet (12) is provided on the inner wall of the notch at the outer end of the reinforcing block (9).

5. The anti-cracking combined core structure according to claim 1, characterized in that: A movable sleeve (4) sleeved on the outside of the vertical shaft (3) is fixed in the middle of the outer side of the fastening block (5), and damping rings are provided at the edges of the upper and lower ends of the movable sleeve (4).

6. The anti-cracking combined core structure according to claim 1, characterized in that: The fastening block (5) is an overall arc-shaped structure and is provided in two groups in total. A plurality of reinforcing ribs (11) are evenly arranged on the outer wall of the fastening block (5).

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