Alignment block mounting structure for injection mold

Abstract

The utility model relates to injection mold technical field, and disclose a kind of alignment block mounting structure for injection mold, including lower mould frame and upper mould frame, lower mould frame is fixedly installed with lower mould in one end close to upper mould frame, the upper mould is fixedly installed with upper mould in one end close to lower mould frame, the outer wall of lower mould is provided with alignment block one. The alignment block mounting structure for injection mold, by the design of positioning block one and positioning groove one and positioning block two and positioning groove two, the quick positioning of alignment block one can be realized, then cooperate with upper bolt, threaded hole two and threaded hole one, the quick fixing of alignment block one can be realized, and the quick fixing of alignment block two can be realized by analogy, after long time use, it is convenient to overhaul or replace, by the design of chamfer type structure of alignment block one, alignment block one and alignment block two form "progressive contact" in initial stage of clamping, avoid the damage of positioning surface caused by rigid collision, improve its service life.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an alignment block mounting structure for injection molds. Background Technology

[0002] The alignment block of an injection mold is a core positioning component that ensures the mold's closing accuracy. It is mainly installed on the edges of the moving and fixed mold plates or next to the guide pillars. Through precise fit, it achieves accurate positioning during mold opening and closing. Its core functions include: ensuring mold closing accuracy by offsetting the clearance between the guide pillars and guide sleeves, ensuring precise alignment of the cavity and core, and preventing defects such as flash and misalignment in the plastic parts; withstanding lateral forces by absorbing the lateral impact force on the mold under injection pressure, protecting critical components such as guide pillars from damage; and assisting in guidance by working with the guide pillars and guide sleeves to guide the mold to close quickly and smoothly, improving production efficiency. Material: It is mostly made of high-strength alloy steel, such as SKD61 and H13, with a hardness of HRC50 or higher after quenching treatment, ensuring wear resistance and rigidity. Precision requirements: The tolerance grade of the mating surfaces is usually IT5-IT6, and the surface roughness needs to be controlled below Ra0.8μm to meet high-precision positioning requirements.

[0003] Chinese Utility Model Patent Publication No. CN222628484U discloses an injection mold. The specification of this injection mold states that it can effectively avoid interference in the mold pressing caused by the ejector pin not being reset in place, thereby reducing the risk of damage to the injection mold and greatly saving on maintenance costs. However, this injection mold does not have an installation structure for the alignment block, making it inconvenient to inspect or replace after long-term use. Furthermore, it does not have an anti-wear structure for the alignment block, resulting in significant wear on the alignment block during mold closing, a short service life, poor practicality, and difficulty in widespread use. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an alignment block mounting structure for injection molds. It can effectively solve the problems in the prior art, which does not have an alignment block mounting structure, making it inconvenient to repair or replace after long-term use, and does not have an anti-wear structure for the alignment block, resulting in greater wear on the alignment block during mold closing, shorter service life, poor practicality, and difficulty in widespread use.

[0005] The technical solution adopted by this utility model is: a positioning block mounting structure for injection molds, including a lower mold frame and an upper mold frame. A lower mold is fixedly installed at one end of the lower mold frame near the upper mold frame, and an upper mold is fixedly installed at one end of the upper mold frame near the lower mold frame. A positioning block one is provided on the outer wall of the lower mold, and a positioning block two is provided on the outer wall of the upper mold frame. An installation groove and a threaded hole one are provided on the side of the lower mold near the positioning block one and the side of the upper mold near the positioning block two. A positioning block one and a positioning block two are fixedly installed on the inner wall of the installation groove. A positioning groove one, a positioning groove two, and a threaded hole two are provided on the outer wall of the positioning block one and the positioning block two. Bolts are threadedly connected to the outer walls of the positioning block one and the positioning block two. A buffer pad one is provided at one end of the positioning block one near the positioning block two, and a buffer pad two is provided at one end of the positioning block two near the positioning block one.

[0006] Preferably, the first positioning block and the first positioning groove are connected by a plug-in joint, and the second positioning block and the second positioning groove are connected by a plug-in joint.

[0007] Using the above technical solution, the staff inserts positioning block one into positioning slot one and positioning block two into positioning slot two, which can achieve rapid positioning of positioning block one.

[0008] Preferably, the bolt extends through the second threaded hole into the interior of the first threaded hole, and the second threaded hole and the first threaded hole have the same diameter.

[0009] With the above technical solution, after the alignment block one is quickly positioned, the bolt extends through the threaded hole two into the interior of the threaded hole one, which can realize the quick fixation of the alignment block one. Similarly, the alignment block two can be quickly fixed. After long-term use, it is convenient to inspect or replace it.

[0010] Preferably, the cross-section of the first alignment block has a "convex" shape, and the cross-section of the second alignment block has a "concave" shape, and the first alignment block and the second alignment block are adapted to each other.

[0011] Through the above technical solution, when the mold is closed, the alignment block one is inserted into the interior of the alignment block two, which can guide the upper mold and the lower mold to accurately align, and can effectively prevent side slippage caused by mold offset during mold closing.

[0012] Preferably, the first alignment block and the second alignment block are provided in four identical sets, and the four sets of the first alignment block and the second alignment block are symmetrically distributed about the center line of the lower mold.

[0013] Through the above technical solution, and the design of four sets of alignment blocks 1 and 2, even if one set of alignment blocks 1 and 2 experiences slight wear, the other three sets can still maintain positioning accuracy, thus solving the problem of production interruption caused by single-point positioning failure.

[0014] Preferably, the end of the first alignment block near the second alignment block has a chamfered design.

[0015] The above technical solution, which adopts a chamfered structure design, enables the alignment block one and alignment block two to form a "progressive contact" in the early stage of mold closing, avoiding damage to the positioning surface caused by rigid collision and improving their service life.

[0016] Preferably, the first buffer pad is adapted to the first alignment block, the second buffer pad is adapted to the second positioning block, and both the first buffer pad and the second buffer pad are made of rubber.

[0017] Through the above technical solution, the buffer pads 1 and 2 made of rubber material have good buffering capacity, avoiding direct collision and wear between the metal contact surfaces of the alignment block 1 and the alignment block 2, and further improving their service life.

[0018] Compared with the prior art, this utility model provides an alignment block mounting structure for injection molds, which has the following beneficial effects: 1. The alignment block mounting structure for injection molds, through the design of positioning block one and positioning groove one and positioning block two and positioning groove two, can realize the quick positioning of positioning block one. With the addition of bolts, threaded hole two and threaded hole one, positioning block one can be quickly fixed. Similarly, positioning block two can be quickly fixed. After long-term use, it is convenient to inspect or replace it. Through the cooperation of positioning block one and positioning block two, it can effectively prevent side slippage caused by mold offset during mold closing. 2. The alignment block mounting structure for injection molds, through the chamfered design of alignment block one, allows alignment block one and alignment block two to form a "progressive contact" in the early stage of mold closing, avoiding damage to the positioning surface caused by rigid collision and improving its service life. The buffer pads one and two, made of rubber material, have good buffering capacity, avoiding direct collision and wear of the metal contact surfaces of alignment block one and alignment block two, further improving their service life. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the lower mold and upper mold of this utility model; Figure 3 This is a schematic diagram of the disassembled structure of the lower mold and the upper mold of this utility model; Figure 4 This is a schematic diagram of the mounting structure of the alignment block of this utility model; Figure 5 This is a schematic diagram of the installation structure of buffer pad one and buffer pad two of this utility model.

[0020] The components are: 1. Lower mold base; 2. Upper mold base; 3. Lower mold; 4. Upper mold; 5. Alignment block one; 6. Alignment block two; 7. Mounting groove; 8. Threaded hole one; 10. Positioning block one; 11. Positioning block two; 12. Positioning groove one; 13. Positioning groove two; 14. Threaded hole two; 16. Bolt; 18. Buffer pad one; 19. Buffer pad two. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: like Figure 1-5 As shown, the present invention provides an alignment block mounting structure for injection molds, including a lower mold base 1 and an upper mold base 2. A lower mold 3 is fixedly installed at one end of the lower mold base 1 near the upper mold base 2, and an upper mold 4 is fixedly installed at one end of the upper mold base 2 near the lower mold base 1. An alignment block 1 5 is provided on the outer wall of the lower mold 3, and an alignment block 2 6 is provided on the outer wall of the upper mold base 2. An installation groove 7 and a threaded hole 1 8 are provided on the side of the lower mold 3 near the alignment block 1 5 and the side of the upper mold 4 near the alignment block 2 6. A positioning block 1 10 and a positioning block 2 11 are fixedly installed on the inner wall of the installation groove 7. A positioning groove 1 12, a positioning groove 2 13, and a threaded hole 2 14 are provided on the outer walls of the alignment block 1 5 and the alignment block 2 6. Bolts 16 are threadedly connected to the outer walls of the alignment block 1 5 and the alignment block 2 6. A buffer pad 18 is provided at one end of the alignment block 1 5 near the alignment block 2 6, and a buffer pad 2 19 is provided at one end of the alignment block 2 6 near the alignment block 1 5.

[0023] Specifically, positioning block 10 and positioning slot 12 are connected by a plug-in joint, and positioning block 21 and positioning slot 23 are also connected by a plug-in joint. The advantage is that when the operator inserts positioning block 10 into positioning slot 12 and simultaneously inserts positioning block 21 into positioning slot 23, the positioning block 5 can be quickly positioned.

[0024] Specifically, bolt 16 extends through threaded hole 14 into threaded hole 8, and threaded hole 14 and threaded hole 8 have the same diameter. The advantage is that after quickly positioning alignment block 5, bolt 16 extending through threaded hole 14 into threaded hole 8 allows for quick fixing of alignment block 5. Similarly, alignment block 6 can be quickly fixed, facilitating maintenance or replacement after prolonged use.

[0025] Specifically, the cross-section of alignment block 1 5 is convex, while the cross-section of alignment block 2 6 is concave. Alignment block 1 5 and alignment block 2 6 are compatible. The advantage is that during mold closing, alignment block 1 5 is inserted into the interior of alignment block 2 6, which can guide the upper mold 4 and the lower mold 3 to accurately align, effectively preventing side slippage caused by mold offset during mold closing.

[0026] Example 2: like Figure 2-5 As shown, as an improvement to the previous embodiment, in order to further improve the service life of alignment block 1 5 and alignment block 2 6, specifically, the end of alignment block 1 5 near alignment block 2 6 adopts a chamfered design. The advantage is that the chamfered structure design allows alignment block 1 5 and alignment block 2 6 to form a "progressive contact" in the early stage of mold closing, avoiding damage to the positioning surface caused by rigid collision and improving their service life.

[0027] Specifically, four identical sets of alignment blocks 5 and 6 are provided, and these four sets of alignment blocks 5 and 6 are symmetrically distributed about the center line of the lower mold 3. The advantage is that, through the design of four sets of alignment blocks 5 and 6, even if one set of alignment blocks 5 and 6 experiences slight wear, the other three sets can still maintain positioning accuracy, thus solving the problem of production interruption caused by single-point positioning failure.

[0028] Specifically, buffer pad 18 is adapted to alignment block 5, and buffer pad 2 19 is adapted to positioning block 2 11. Both buffer pad 18 and buffer pad 2 19 are made of rubber. The advantage is that the rubber-made buffer pads 18 and 19 have good cushioning capabilities, preventing direct collision and wear between the metal contact surfaces of alignment block 5 and alignment block 2 6, thus further improving their service life.

[0029] Working principle: During installation, the operator inserts positioning block 10 into positioning groove 12 and positioning block 21 into positioning groove 13, enabling rapid positioning of positioning block 5. After positioning block 5 is quickly positioned, bolt 16 extends through threaded hole 14 to threaded hole 8, enabling rapid fixing of positioning block 5. Similarly, positioning block 26 can be quickly fixed. After long-term use, this facilitates maintenance or replacement. During mold closing, positioning block 5 is inserted into positioning block 26, guiding the upper mold 4 and lower mold 3 to precisely align, effectively preventing lateral slippage caused by mold misalignment during mold closing. By designing four sets of alignment blocks 5 and 6, even if one set of alignment blocks 5 and 6 experiences slight wear, the other three sets can still maintain positioning accuracy, solving the production interruption problem caused by single-point positioning failure. The chamfered structure design of alignment block 5 allows alignment block 5 and alignment block 6 to form a "progressive contact" in the early stage of mold closing, avoiding damage to the positioning surface caused by rigid collision and improving their service life. The buffer pads 18 and 19 made of rubber have good buffering capacity, avoiding direct collision and wear between the metal contact surfaces of alignment block 5 and alignment block 6, further improving their service life.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mounting structure for an alignment block in an injection mold, comprising a lower mold base (1) and an upper mold base (2), characterized in that: The lower mold frame (1) is fixedly mounted with a lower mold (3) at one end near the upper mold frame (2), and the upper mold frame (2) is fixedly mounted with an upper mold (4) at one end near the lower mold frame (1). The outer wall of the lower mold (3) is provided with a first alignment block (5), and the outer wall of the upper mold frame (2) is provided with a second alignment block (6). The side of the lower mold (3) near the first alignment block (5) and the side of the upper mold (4) near the second alignment block (6) are both provided with mounting grooves (7) and threaded holes (8). The inner surface of the mounting groove (7)... Positioning block 1 (10) and positioning block 2 (11) are fixedly installed on the wall. Positioning block 1 (5) and positioning block 2 (6) are provided with positioning groove 1 (12), positioning groove 2 (13) and threaded hole 2 (14) on their outer walls. Bolts (16) are threadedly connected to the outer walls of positioning block 1 (5) and positioning block 2 (6). Buffer pad 1 (18) is provided at the end of positioning block 1 (5) near positioning block 2 (6), and buffer pad 2 (19) is provided at the end of positioning block 2 (6) near positioning block 1 (5).

2. The alignment block mounting structure for injection molds according to claim 1, characterized in that: The first positioning block (10) and the first positioning groove (12) are connected by a plug-in joint, and the second positioning block (11) and the second positioning groove (13) are connected by a plug-in joint.

3. The alignment block mounting structure for injection molds according to claim 1, characterized in that: The bolt (16) extends through the second threaded hole (14) into the interior of the first threaded hole (8), and the second threaded hole (14) and the first threaded hole (8) have the same diameter.

4. The alignment block mounting structure for injection molds according to claim 1, characterized in that: The cross-section of the first alignment block (5) is convex, and the cross-section of the second alignment block (6) is concave. The first alignment block (5) and the second alignment block (6) are compatible.

5. The alignment block mounting structure for injection molds according to claim 1, characterized in that: The first alignment block (5) and the second alignment block (6) are provided in four identical sets, and the four sets of the first alignment block (5) and the second alignment block (6) are symmetrically distributed about the center line of the lower mold (3).

6. The alignment block mounting structure for injection molds according to claim 1, characterized in that: The end of the first alignment block (5) near the second alignment block (6) is designed with a chamfer.

7. The alignment block mounting structure for injection molds according to claim 1, characterized in that: The first buffer pad (18) is adapted to the first alignment block (5), and the second buffer pad (19) is adapted to the second positioning block (11). Both the first buffer pad (18) and the second buffer pad (19) are made of rubber.

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