Support column mounting structure for injection mold

Abstract

The utility model relates to injection mold technical field, and disclose a kind of support column mounting structure for injection mold, including lower mould frame and upper mould frame, the lower mould frame is fixedly installed with lower mould in one end close to upper mould frame, the upper mould frame is fixedly installed with upper mould in one end close to lower mould frame, support column one and support column two are arranged between the lower mould frame and lower mould, the one end fixedly installed with locating block one of support column one close to lower mould frame. The support column mounting structure for injection mold, by the design of locating block one and locating groove one, locating block two and locating groove two and locating block three and locating groove three, the quick positioning of support column one can be realized, then cooperate with bolt one, through hole three, threaded hole two, through hole one and threaded hole one and bolt two, through hole four, threaded hole four, through hole two and threaded hole three, the quick fixing of support column one can be realized, after long time use, it is convenient for subsequent replacement or overhaul.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a support column mounting structure for injection molds. Background Technology

[0002] Plastic molds are the core tools for mass production of plastic parts. By injecting molten plastic into the mold cavity and cooling it to solidify, standardized manufacturing of plastic products is achieved. The core working principle of injection molds is mainly divided into three steps, forming a complete production cycle: Injection stage: The injection molding machine heats and melts the plastic raw material, injecting it into the closed mold cavity at high pressure and high speed; Holding pressure and cooling: Maintaining a certain pressure to allow the plastic to fill the cavity, while the cooling system inside the mold allows the plastic to solidify and form quickly; Mold opening and part removal: The mold opens, the ejector mechanism pushes out the formed plastic part, and then the mold closes again to enter the next production cycle.

[0003] Chinese Utility Model Patent Publication No. CN107962746A discloses an injection mold. The specification of this injection mold states that when a part needs to be injection molded, the moving mold is first closed onto the fixed mold, and then injection molding is performed. After injection molding is completed, the fixed mold is driven to move away from the moving mold, and a sliding rod drives the corresponding connecting block to move away from another set of sliding components, causing the mold rod to detach from the injection molded part. When the sliding hole abuts against the connecting sleeve, the connecting block drives the injection mold to move synchronously, causing the injection mold to detach from the injection molded part. Then, a hydraulic cylinder drives the ejector mold to move towards the fixed mold, and an ejector pin ejects the injection molded part from the fixed mold. The injection molded part falls from between the fixed mold and the moving mold under gravity. However, this injection mold lacks a support column installation structure, making it inconvenient to replace or repair after prolonged use. Furthermore, it lacks a bolt loosening structure, leading to production accidents and downtime due to loose bolts. Therefore, its practicality is poor, and it is not suitable for widespread use. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a support column installation structure for injection molds. It can effectively solve the problems in the prior art, which does not have an installation structure for the support column, making it inconvenient to replace or repair it after long-term use, and does not have a bolt loosening structure, which makes the bolts easy to loosen, leading to production accidents and downtime, poor practicality, and difficulty in promotion and use.

[0005] The technical solution adopted by this utility model is: a support column mounting structure for injection molds, including a lower mold frame and an upper mold frame. A lower mold is fixedly mounted on the lower mold frame near the upper mold frame, and an upper mold is fixedly mounted on the upper mold frame near the lower mold frame. A first support column and a second support column are provided between the lower mold frame and the lower mold. A first positioning block is fixedly mounted on the first support column near the lower mold frame. A second positioning block is fixedly mounted on the first positioning block away from the first support column. A third positioning block is fixedly mounted on the second positioning block away from the first positioning block. A first protrusion is fixedly mounted on the third positioning block away from the second positioning block. The positioning block three has threaded holes one and three at the end away from the positioning block two. The lower mold frame has positioning groove one, positioning groove two and positioning groove three on the side near the lower mold. The inner wall of the positioning groove three is fixedly installed with protrusion two. The end of the positioning block three near the lower mold frame is provided with a washer. The outer wall of the washer is provided with a groove, through hole one and through hole two. The side of the lower mold frame away from the lower mold is provided with threaded holes two and four. The side of the lower mold frame away from the lower mold is threadedly connected with bolt one and bolt two. A connecting plate is provided between bolt one and bolt two. The outer wall of the connecting plate is provided with through hole three and through hole four.

[0006] Preferably, the first positioning block and the first positioning groove are connected by a plug-in joint, the second positioning block and the second positioning groove are connected by a plug-in joint, and the third positioning block and the third 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, positioning block two into positioning slot two, and positioning block three into positioning slot three. This enables rapid positioning of support column one, effectively avoiding problems such as offset or misalignment of support column one during installation, and ensuring the accuracy of the installation position of support column one.

[0008] Preferably, the cross-section of the first positioning block is square, and the cross-section of the second positioning block is square.

[0009] The above technical solution, with the cross-sections of positioning block one and positioning block two both in a "square" shape, effectively prevents positioning block one from rotating in positioning groove one and positioning block two from rotating in positioning groove two, thereby further improving the stability and reliability of the support column installation.

[0010] Preferably, bolt one extends through through hole three, threaded hole two, and through hole one into the interior of threaded hole one, and bolt two extends through through hole four, threaded hole four, and through hole two into the interior of threaded hole three.

[0011] Using the above technical solution, after quickly positioning the support column one, the workers can insert bolt one through through hole three, threaded hole two, and through hole one into the interior of threaded hole one. Then, they can insert bolt two through through hole four, threaded hole four, and through hole two into the interior of threaded hole three. This allows for the rapid fixing of the support column one, making it easier to replace or repair it after long-term use.

[0012] Preferably, the threads of bolt one and bolt two have opposite helical directions.

[0013] Through the above technical solution, by designing that the threads of bolt one and bolt two have opposite directions, when the whole is affected by vibration or other external forces, bolt one and bolt two will generate torques in opposite directions, which will restrain each other, thereby effectively preventing bolt one or bolt two from loosening, ensuring the reliability and stability of the connection, extending the service life of the whole, and reducing production accidents and downtime caused by loosening of bolt one or bolt two.

[0014] Preferably, the first protrusion and the groove are connected by a plug-in joint, and the second protrusion and the groove are connected by a plug-in joint.

[0015] Using the above technical solution, the worker inserts the first protrusion into the inside of the groove. During the rapid positioning of the first support column, the second protrusion is inserted into the inside of the groove, which enables the rapid installation of the washer. Through the design of the washer, local stress concentration is reduced, the mold components are protected, the overall load-bearing capacity and fatigue resistance are improved, and the overall service life is extended.

[0016] Preferably, the first support column and the second support column have the same structure, and there are multiple identical first support columns and second support columns, which are distributed at equal intervals.

[0017] Through the above technical solution, the design of multiple support columns one and two ensures that the pressure and impact generated during the injection molding process are evenly distributed to the lower mold frame, avoiding excessive stress in local areas and preventing deformation and damage of mold components due to uneven stress, thus ensuring the overall molding accuracy and service life of the mold.

[0018] Compared with the prior art, the present invention provides a support column mounting structure for injection molds, which has the following advantages: 1. The support column mounting structure for this injection mold, through the design of positioning block one and positioning groove one, positioning block two and positioning groove two, and positioning block three and positioning groove three, can achieve rapid positioning of support column one, effectively avoiding problems such as offset or misalignment of support column one during installation, ensuring the accuracy of the installation position of support column one. In addition, with the cooperation of bolt one, through hole three, threaded hole two, through hole one and threaded hole one, and bolt two, through hole four, threaded hole four, through hole two and threaded hole three, support column one can be quickly fixed. After long-term use, it is convenient to replace or repair it. The design of the washer reduces local stress concentration, protects mold components, improves overall load-bearing capacity and fatigue resistance, and extends the overall service life. 2. The support column mounting structure of this injection mold, through the design of the "square" cross-section of positioning block one and positioning block two, effectively prevents positioning block one and positioning block two from rotating within positioning groove one and positioning groove two, respectively, further improving the stability and reliability of the support column installation. The design of bolt one and bolt two with opposite thread directions ensures that when the whole is subjected to vibration or other external forces, bolt one and bolt two will generate torques in opposite directions, mutually restraining each other and effectively preventing bolt one or bolt two from loosening. This ensures the reliability and stability of the connection, extends the overall service life, and reduces production accidents and downtime caused by loose bolt one or bolt two. The design of multiple support columns one and two evenly distributes the pressure and impact generated during injection molding onto the lower mold frame, avoiding excessive stress in localized areas and preventing deformation and damage to mold components due to uneven stress, thus ensuring the overall molding accuracy and service life of the mold. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the lower mold installation structure of this utility model; Figure 3 Schematic diagram of the installation structure of support column one and support column two of this utility model Figure 1 ; Figure 4 Schematic diagram of the installation structure of support column one and support column two of this utility model Figure 2 ; Figure 5 This is a schematic diagram of the washer installation structure of this utility model; Figure 6 This is a schematic diagram of the half-section structure of the lower mold frame of this utility model; Figure 7 This is a schematic diagram of the mounting structure of the connecting plate of this utility model.

[0020] The components are as follows: 1. Lower mold frame; 2. Upper mold frame; 3. Lower mold; 4. Upper mold; 5. Support column one; 6. Support column two; 7. Positioning block one; 8. Positioning block two; 9. Positioning block three; 10. Protrusion one; 11. Threaded hole one; 12. Threaded hole three; 13. Positioning groove one; 14. Positioning groove two; 15. Positioning groove three; 16. Protrusion two; 17. Washer; 18. Groove; 19. Through hole one; 20. Through hole two; 21. Threaded hole two; 22. Threaded hole four; 23. Bolt one; 24. Bolt two; 25. Connecting plate; 26. Through hole three; 27. Through hole four. 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 1-7 As shown, the present invention provides a support column mounting structure for injection molds, including a lower mold frame 1 and an upper mold frame 2. A lower mold 3 is fixedly installed at one end of the lower mold frame 1 near the upper mold frame 2, and an upper mold 4 is fixedly installed at one end of the upper mold frame 2 near the lower mold frame 1. A support column 1 5 and a support column 2 6 are provided between the lower mold frame 1 and the lower mold 3. A positioning block 1 7 is fixedly installed at one end of the support column 1 5 near the lower mold frame 1, a positioning block 2 8 is fixedly installed at one end of the positioning block 1 7 away from the support column 1 5, a positioning block 3 9 is fixedly installed at one end of the positioning block 2 8 away from the positioning block 1 7, a protrusion 10 is fixedly installed at one end of the positioning block 3 9 away from the positioning block 2 8, and a protrusion 10 is fixedly installed at one end of the positioning block 3 9 away from the positioning block 2 8. The lower mold frame 1 has a threaded hole 11 and a threaded hole 32. On the side of the lower mold frame 1 near the lower mold 3, there are positioning grooves 13, 14, and 15. A protrusion 26 is fixedly installed on the inner wall of positioning groove 315. A washer 17 is provided at the end of positioning block 39 near the lower mold frame 1. The outer wall of washer 17 has a groove 18, a through hole 19, and a through hole 20. On the side of the lower mold frame 1 away from the lower mold 3, there are threaded holes 21 and 22. Bolt 1 23 and bolt 24 are threadedly connected on the side of the lower mold frame 1 away from the lower mold 3. A connecting plate 25 is provided between bolt 1 23 and bolt 24. The outer wall of the connecting plate 25 has through holes 3 26 and 4 27.

[0023] Specifically, positioning block 7 and positioning slot 13 are installed by insertion, positioning block 8 and positioning slot 2 are installed by insertion, and positioning block 9 and positioning slot 3 are installed by insertion. The advantage is that by inserting positioning block 7 into positioning slot 13, positioning block 8 into positioning slot 24, and positioning block 9 into positioning slot 35, the support column 5 can be quickly positioned, effectively preventing offset or misalignment during installation and ensuring the accuracy of its installation position.

[0024] Specifically, both positioning block 7 and positioning block 8 have a square cross-section. The advantage is that the square cross-sections of positioning block 7 and positioning block 8 effectively prevent rotation of positioning block 7 within positioning groove 13 and positioning block 8 within positioning groove 14, further improving the stability and reliability of the support column installation.

[0025] Specifically, bolt 23 extends through through hole 26, threaded hole 21, and through hole 19 into threaded hole 11; bolt 24 extends through through hole 27, threaded hole 22, and through hole 20 into threaded hole 12. The advantage is that after quickly positioning support column 5, workers can quickly fix support column 5 by extending bolt 23 through through hole 26, threaded hole 21, and through hole 19 into threaded hole 11, and bolt 24 through through hole 27, threaded hole 22, and through hole 20 into threaded hole 12. This facilitates subsequent replacement or maintenance after prolonged use.

[0026] Example 2: like Figure 2-7 As shown, as an improvement to the previous embodiment, to prevent bolt 23 or bolt 24 from loosening, specifically, the thread helix directions of bolt 23 and bolt 24 are opposite. The advantage is that, by designing bolt 23 and bolt 24 with opposite thread helix directions, when the entire assembly is subjected to vibration or other external forces, bolt 23 and bolt 24 will generate torques in opposite directions, mutually restraining each other, thereby effectively preventing bolt 23 or bolt 24 from loosening, ensuring the reliability and stability of the connection, extending the overall service life, and reducing production accidents and downtime caused by loosening of bolt 23 or bolt 24.

[0027] Specifically, protrusion 10 and groove 18 are installed by insertion, as are protrusion 2 16 and groove 18. The advantage is that when the operator inserts protrusion 10 into groove 18, during the rapid positioning of support column 5, protrusion 2 16 is also inserted into groove 18, enabling rapid installation of washer 17. The design of washer 17 reduces local stress concentration, protects mold components, improves overall load-bearing capacity and fatigue resistance, and extends the overall service life.

[0028] Specifically, support pillar 5 and support pillar 6 have the same structure, and multiple support pillars 5 and 6 are provided, all evenly spaced. The advantage is that the design of multiple support pillars 5 and 6 evenly distributes the pressure and impact generated during injection molding onto the lower mold base 1, avoiding excessive stress in localized areas and preventing deformation or damage to mold components due to uneven stress, thus ensuring the overall molding accuracy and service life of the mold.

[0029] Working Principle: During installation, the operator inserts positioning block 7 into positioning groove 13, positioning block 8 into positioning groove 14, and positioning block 9 into positioning groove 15. This allows for rapid positioning of support column 5, effectively preventing offset or misalignment during installation and ensuring accurate installation. After positioning support column 5, bolt 23 extends through through hole 26, threaded hole 21, and through hole 19 to threaded hole 11. Bolt 24 extends through through hole 27, threaded hole 22, and through hole 20 to threaded hole 12, quickly fixing support column 5 and facilitating replacement or maintenance after prolonged use. Protrusion 10 is inserted into groove 18, and during the rapid positioning of support column 5, protrusion 16 is inserted into groove 18. To facilitate the rapid installation of washer 17, the square cross-sections of positioning block 1 7 and positioning block 2 8 effectively prevent rotation of positioning block 1 7 within positioning groove 13 and positioning block 2 8 within positioning groove 2 14, further enhancing the stability and reliability of the support column installation. The opposite thread directions of bolts 1 23 and 2 24 ensure that they generate opposite torques when subjected to vibration or other external forces, effectively preventing loosening and guaranteeing connection reliability and stability. This extends the overall service life and reduces production accidents and downtime caused by loosening of bolts 1 23 or 2 24. Furthermore, the design of washer 17 reduces localized stress concentration, protects mold components, improves overall load-bearing capacity and fatigue resistance, and extends the overall 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 support column mounting structure for injection molds, comprising a lower mold frame (1) and an upper mold frame (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). A support column one (5) and a support column two (6) are provided between the lower mold frame (1) and the lower mold (3). A positioning block one (7) is fixedly mounted at one end of the support column one (5) near the lower mold frame (1). A positioning block two (8) is fixedly mounted at one end of the positioning block one (7) away from the support column one (5). A positioning block three (9) is fixedly mounted at one end of the positioning block two (8) away from the positioning block one (7). A protrusion one (10) is fixedly mounted at one end of the positioning block three (9) away from the positioning block two (8). A threaded hole one (11) and a threaded hole three (12) are provided at one end of the positioning block three (9) away from the positioning block two (8). The lower mold The frame (1) has a positioning groove 1 (13), a positioning groove 2 (14) and a positioning groove 3 (15) on the side near the lower mold (3). The inner wall of the positioning groove 3 (15) is fixedly installed with a protrusion 2 (16). The end of the positioning block 3 (9) near the lower mold frame (1) is provided with a washer (17). The outer wall of the washer (17) is provided with a groove (18), a through hole 1 (19) and a through hole 2 (20). The side of the lower mold frame (1) away from the lower mold (3) is provided with a threaded hole 2 (21) and a threaded hole 4 (22). The side of the lower mold frame (1) away from the lower mold (3) is threaded with a bolt 1 (23) and a bolt 2 (24). A connecting plate (25) is provided between the bolt 1 (23) and the bolt 2 (24). The outer wall of the connecting plate (25) is provided with a through hole 3 (26) and a through hole 4 (27).

2. The support column mounting structure for injection molds according to claim 1, characterized in that: The first positioning block (7) and the first positioning groove (13) are connected by a plug-in joint, the second positioning block (8) and the second positioning groove (14) are connected by a plug-in joint, and the third positioning block (9) and the third positioning groove (15) are connected by a plug-in joint.

3. The support column mounting structure for injection molds according to claim 1, characterized in that: The cross-section of the first positioning block (7) is a "square" structure, and the cross-section of the second positioning block (8) is a "square" structure.

4. The support column mounting structure for injection molds according to claim 1, characterized in that: Bolt 1 (23) extends through through hole 3 (26), threaded hole 2 (21) and through hole 1 (19) into the interior of threaded hole 1 (11), and bolt 2 (24) extends through through hole 4 (27), threaded hole 4 (22) and through hole 2 (20) into the interior of threaded hole 3 (12).

5. The support column mounting structure for injection molds according to claim 1, characterized in that: The threads of bolt one (23) and bolt two (24) are opposite in direction.

6. The support column mounting structure for injection molds according to claim 1, characterized in that: The first protrusion (10) and the groove (18) are connected by a plug-in joint, and the second protrusion (16) and the groove (18) are connected by a plug-in joint.

7. The support column mounting structure for injection molds according to claim 1, characterized in that: The support column one (5) and support column two (6) have the same structure. There are multiple identical support columns one (5) and support column two (6), and the multiple support columns one (5) and support column two (6) are distributed at equal intervals.

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