Injection molding equipment for molding processing of plastic parts

Abstract

The utility model relates to the technical field of injection molding equipment, and discloses injection molding equipment for forming and processing plastic parts, which comprises a base, an L-shaped frame is fixedly connected to the rear side of the top of the base, two cylinders are fixedly connected to the bottom of the L-shaped frame, and the output ends of the cylinders are fixedly connected with an upper die holder. Guide rods penetrate through and are slidably connected to the two sides of the upper mold base, a lower mold base is fixedly connected to the top of the base, a fixing frame is fixedly connected into the lower mold base, a lifting assembly is arranged at the top of the fixing frame, four jacking columns are fixedly connected to the top of the lifting assembly, and an injection molding cavity is formed in the top of the lower mold base; and an injection molding groove is formed in the injection molding cavity. According to the injection molding device, the sealing lower pressing plate, the first insertion block, the second guide groove, the guide rod, the air cylinder and the injection molding cavity work in a matched mode, the first insertion block and the second insertion block are inserted into the first guide groove and the second guide groove, the sealing and stabilizing effects are improved, and the leakage phenomenon is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding equipment, in particular to an injection molding equipment used for molding and processing of plastic parts. Background Art

[0002] As we all know, injection molding is a method of producing industrial products. It is a method of injecting thermoplastics or thermosetting materials into plastic molding molds through injection molding equipment to make plastic products of various shapes.

[0003] After searching, the existing Chinese patent announcement number is: CN213260736U, which provides an injection molding device for precision molding of plastic parts. The patent improves the structure and sets and installs guide rails, injection molding columns and valves. Since the guide rails are symmetrically distributed with the working plate as the central axis, and the guide rails are parallel to each other, and the hydraulic valve and the valve are symmetrically arranged, the existing injection molding equipment for precision molding of plastic parts has low injection molding accuracy and is easy to damage the object during the processing, thereby improving the quality of the product and avoiding the situation where the injection molding material is easily spilled during the working process, which is beneficial to the actual use of the injection molding equipment for precision molding of plastic parts.

[0004] Although the above patent can avoid the situation that the injection molding material is easily spilled during the working process, the above-mentioned injection molding equipment for precision molding of plastic parts still has the following problems: the plastic needs to be manually removed from the inside of the lower mold, which is inconvenient to demold the mold, and the temperature of the newly molded plastic is high, which can easily burn the staff.

[0005] In view of the above problems, an injection molding device for plastic parts molding is proposed. Utility Model Content

[0006] The utility model aims to provide an injection molding device for plastic parts molding, which solves the problem of inconvenient demoulding of the mold in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection molding device for plastic parts molding, comprising a base, an L-shaped frame fixedly connected to the rear side of the top of the base, two cylinders fixedly connected to the bottom of the L-shaped frame, an upper mold base fixedly connected to the output end of the cylinder, guide rods passing through and slidably connected to both sides of the upper mold base, a lower mold base fixedly connected to the top of the base, a fixed frame fixedly connected inside the lower mold base, a lifting component is arranged on the top of the fixed frame, four top columns are fixedly connected to the top of the lifting component, an injection cavity is opened on the top of the lower mold base, and the An injection groove is provided in the injection cavity, and the injection groove is opened in the lower mold base. First guide grooves are provided on both sides of the injection groove, and the two first guide grooves are opened in the lower mold base. Two second guide grooves are opened on the top of the lower mold base. A sealed lower pressure plate is fixedly connected to the bottom of the upper mold base, and first plug-ins are provided on both sides of the sealed lower pressure plate. The first plug-in block is fixedly connected to the upper mold base, and second plug-in blocks are fixedly connected to both sides of the bottom of the sealed lower pressure plate. Injection holes are penetrated and opened in the upper mold base and the sealed lower pressure plate, and the four top columns are all penetrated and slidably connected to the lower mold base.

[0008] By adopting the above technical solution, the upper mold base drives the sealing lower pressure plate to descend, and the injection cavity is sealed by the sealing lower pressure plate, and the first plug block and the second plug block are inserted into the first guide groove and the second guide groove to improve the sealing and stabilizing effects.

[0009] As a further description of the above technical solution: the lifting assembly includes a support frame, the bottom of the support frame is fixedly connected to the fixed frame, a two-way threaded rod passes through and is rotatably connected to the support frame, both sides of the two-way threaded rod are threadedly connected to a moving frame, both sides of the moving frame are rotatably connected to support rods, the other end of the support rod is rotatably connected to a lifting plate, and the top of the lifting plate is fixedly connected to the top column.

[0010] By adopting the above technical solution, the lifting plate can be driven to move up and down in the lower mold base through the lifting component, thereby driving the ejector column to extend from the injection groove, so that the mold in the injection groove can be ejected, making it convenient to demold the mold.

[0011] As a further description of the above technical solution: the bottom of the guide rod is fixedly connected to the top of the base.

[0012] By adopting the above technical solution, the guide rod can make the upper die seat more stable when descending.

[0013] As a further description of the above technical solution: the second plug-in block is arranged in the first guide groove, and the outer portion of the second plug-in block is slidably connected to the inner wall of the first guide groove.

[0014] By adopting the above technical solution, the second inserting block can be inserted into the first guiding groove.

[0015] As a further description of the above technical solution: the first plug block is arranged in the second guide groove, and the outer portion of the first plug block is slidably connected to the inner wall of the second guide groove

[0016] By adopting the above technical solution, it can be ensured that the first inserting block is inserted into the second guiding groove.

[0017] As a further description of the above technical solution: the second guide grooves are arranged on both sides of the injection cavity.

[0018] By adopting the above technical solution, the second guide groove cooperates with the first insert block to improve the sealing effect.

[0019] As a further description of the above technical solution: the four corners of the bottom of the lifting plate are fixedly connected with telescopic columns, and the telescopic columns are fixedly connected to the fixing frame.

[0020] By adopting the above technical solution, the telescopic column can play a supporting role.

[0021] As a further description of the above technical solution: a hand wheel is fixedly connected to the right end of the bidirectional threaded rod, and the hand wheel is arranged on the outer side of the lower die base.

[0022] By adopting the above technical solution, the bidirectional threaded rod is driven to rotate by the hand wheel.

[0023] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0024] 1. The utility model provides an injection molding device for plastic parts molding. First, a sealing lower pressure plate, a first plug-in block, a second plug-in block, a first guide groove, a second guide groove, a guide rod, a cylinder and an injection cavity cooperate with each other. The upper mold base drives the sealing lower pressure plate to descend, and the injection cavity is sealed by the sealing lower pressure plate. The first plug-in block and the second plug-in block are inserted into the first guide groove and the second guide groove to improve the sealing and stabilizing effect and prevent leakage.

[0025] 2. The utility model provides an injection molding device for plastic parts molding processing, in which a support frame, a fixed frame, a movable frame, a support rod, a lifting plate, a telescopic column, a push column and an injection molding groove work in coordination with each other. The lifting plate can be driven to move up and down in the lower mold base through the lifting assembly, thereby driving the push column to extend out of the injection molding groove, so that the mold in the injection molding groove can be ejected, making it convenient to demold the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the lower die base of the utility model;

[0028] Figure 3 This is a schematic diagram of the injection cavity structure of the utility model;

[0029] Figure 4 It is an exploded schematic diagram of the overall structure of the utility model.

[0030] In the figure: 1. base; 2. L-shaped frame; 3. cylinder; 4. upper mold base; 5. guide rod; 6. fixed frame; 7. support frame; 8. bidirectional threaded rod; 9. movable frame; 10. support rod; 11. lifting plate; 12. telescopic column; 13. top column; 14. lower mold base; 15. injection cavity; 16. injection groove; 17. first guide groove; 18. second guide groove; 19. sealing lower pressure plate; 20. first plug block; 21. second plug block; 22. injection hole; 23. hand wheel. DETAILED DESCRIPTION

[0031] The following will refer to 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 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.

[0032] In order to further understand the content of the utility model, the utility model is described in detail with reference to the accompanying drawings.

[0033] Reference Figure 1 , Figure 2 and Figure 3The utility model is an injection molding device for plastic parts molding, comprising a base 1, an L-shaped frame 2 is fixedly connected to the rear side of the top of the base 1, two cylinders 3 are fixedly connected to the bottom of the L-shaped frame 2, and the upper mold base 4 is driven to rise and fall by the cylinder 3, the output end of the cylinder 3 is fixedly connected to the upper mold base 4, both sides of the upper mold base 4 are penetrated and slidably connected with guide rods 5, which play a guiding role, the top of the base 1 is fixedly connected to the lower mold base 14, the lower mold base 14 is fixedly connected with a fixed frame 6, the top of the fixed frame 6 is provided with a lifting component, the top of the lifting component is fixedly connected with four ejector columns 13, and the mold is ejected by extending through the ejector columns 13, and an injection cavity 15 is opened at the top of the lower mold base 14, and an injection groove 16 is arranged in the injection cavity 15, and the injection groove 16 is opened in the lower mold base 14, and both sides of the injection groove 16 are A first guide groove 17 is provided, and two first guide grooves 17 are both opened in the lower mold base 14. Two second guide grooves 18 are opened on the top of the lower mold base 14. A sealed lower pressure plate 19 is fixedly connected to the bottom of the upper mold base 4. First plug blocks 20 are provided on both sides of the sealed lower pressure plate 19. The first plug blocks 20 are fixedly connected to the upper mold base 4. Second plug blocks 21 are fixedly connected to both sides of the bottom of the sealed lower pressure plate 19. The first plug blocks 20 and the second plug blocks 21 are inserted into the first guide grooves 17 and the second guide grooves 18 to improve the sealing and stability effects and prevent leakage. Injection holes 22 are penetrated and opened in the upper mold base 4 and the sealing lower pressure plate 19 to facilitate the entry of injection molding raw materials. Four top columns 13 are all penetrated and slidably connected to the lower mold base 14. The four top columns 13 are flush with the surface of the injection groove 16.

[0034] Reference Figure 2 The lifting assembly includes a support frame 7, the bottom of the support frame 7 is fixedly connected to the fixed frame 6, a two-way threaded rod 8 passes through and is rotatably connected to the support frame 7, both sides of the two-way threaded rod 8 are threadedly connected to the mobile frame 9, both sides of the mobile frame 9 are rotatably connected to the support rod 10, the other end of the support rod 10 is rotatably connected to the lifting plate 11, the top of the lifting plate 11 is fixedly connected to the ejector column 13, the right end of the two-way threaded rod 8 is fixedly connected to the hand wheel 23, the hand wheel 23 is arranged on the outside of the lower mold base 14, the lifting assembly can drive the lifting plate 11 to rise and fall in the lower mold base 14, thereby driving the ejector column 13 to extend from the injection groove 16, so that the mold in the injection groove 16 can be ejected, which is convenient for demolding the mold.

[0035] Reference Figure 2 , Figure 3 and Figure 4The bottom of the guide rod 5 is fixedly connected to the top of the base 1, and the guide rod 5 can make the upper mold base 4 more stable when it descends. The second plug block 21 is arranged in the first guide groove 17, and the outside of the second plug block 21 is slidably connected to the inner wall of the first guide groove 17. The first plug block 20 is arranged in the second guide groove 18, and the outside of the first plug block 20 is slidably connected to the inner wall of the second guide groove 18. The second guide groove 18 is arranged on both sides of the injection cavity 15. The four corners of the bottom of the lifting plate 11 are fixedly connected with telescopic columns 12. The telescopic columns 12 can play a supporting role, and the telescopic columns 12 are fixedly connected to the fixed frame 6.

[0036] Working principle: During operation, the cylinder 3 drives both sides of the upper mold base 4 to descend along the direction of the guide rod 5, so that the sealing lower pressure plate 19 of the upper mold base 4 is inserted into the injection cavity 15. At this time, the first plug block 20 begins to be inserted into the second guide groove 18 to improve the stability of the seal. The upper mold base 4 continues to descend, so that the second plug block 21 is inserted into the first guide groove 17, and the injection cavity 15 is sealed by the sealing lower pressure plate 19 to prevent leakage at the edge of the injection groove 16 during injection. After the upper mold base 4 and the lower mold base 14 are closed, injection is performed into the injection groove 16 through the injection hole 22. After the injection is completed, the upper mold base 4 rises and the hand wheel 23 on the right side of the lower mold base 14 is rotated. The hand wheel 23 drives the two-way threaded rod 8 to rotate, and the two moving frames 9 are driven to move in opposite directions through the two-way threaded rod 8, thereby driving the lifting plate 11 to rise through the support rod 10, and driving the top column 13 to extend out of the injection groove 16 through the lifting plate 11, and the mold in the injection groove 16 is ejected to achieve demoulding.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding device for molding plastic parts, comprising a base (1), characterized in that: The rear side of the top of the base (1) is fixedly connected to an L-shaped frame (2), the bottom of the L-shaped frame (2) is fixedly connected to two cylinders (3), the output end of the cylinder (3) is fixedly connected to an upper mold base (4), both sides of the upper mold base (4) are penetrated and slidably connected with guide rods (5), the top of the base (1) is fixedly connected to a lower mold base (14), the lower mold base (14) is fixedly connected to a fixed frame (6), the top of the fixed frame (6) is provided with a lifting component, the top of the lifting component is fixedly connected to four top columns (13), the top of the lower mold base (14) is provided with an injection cavity (15), the injection cavity (15) is provided with an injection groove (16), and the injection groove (16) is opened in the lower mold base (14). , first guide grooves (17) are provided on both sides of the injection groove (16), and the two first guide grooves (17) are both opened in the lower mold base (14), and two second guide grooves (18) are opened on the top of the lower mold base (14), and a sealing lower pressure plate (19) is fixedly connected to the bottom of the upper mold base (4), and first plug blocks (20) are provided on both sides of the sealing lower pressure plate (19), and the first plug blocks (20) are fixedly connected to the upper mold base (4), and second plug blocks (21) are fixedly connected to the bottom of the sealing lower pressure plate (19), and injection holes (22) are penetrated and opened in the upper mold base (4) and the sealing lower pressure plate (19), and the four top columns (13) are penetrated and slidably connected to the lower mold base (14).

2. The injection molding equipment for plastic parts molding according to claim 1, characterized in that: The lifting assembly comprises a support frame (7), the bottom of the support frame (7) is fixedly connected to the fixed frame (6), a bidirectional threaded rod (8) passes through and is rotatably connected to the support frame (7), both sides of the bidirectional threaded rod (8) are threadedly connected to a moving frame (9), both sides of the moving frame (9) are rotatably connected to a support rod (10), the other end of the support rod (10) is rotatably connected to a lifting plate (11), and the top of the lifting plate (11) is fixedly connected to a top column (13).

3. The injection molding equipment for plastic parts molding according to claim 1, characterized in that: The bottom of the guide rod (5) is fixedly connected to the top of the base (1).

4. The injection molding equipment for plastic parts molding according to claim 1, characterized in that: The second insert block (21) is arranged in the first guide groove (17), and the exterior of the second insert block (21) is slidably connected to the inner wall of the first guide groove (17).

5. The injection molding equipment for plastic parts molding according to claim 1, characterized in that: The first inserting block (20) is arranged in the second guiding groove (18), and the outside of the first inserting block (20) is slidably connected to the inner wall of the second guiding groove (18).

6. The injection molding equipment for plastic parts molding according to claim 1, characterized in that: The second guide grooves (18) are arranged on both sides of the injection cavity (15).

7. The injection molding equipment for plastic parts molding according to claim 2, characterized in that: The four corners of the bottom of the lifting plate (11) are fixedly connected with telescopic columns (12), and the telescopic columns (12) are fixedly connected to the fixing frame (6).

8. The injection molding equipment for plastic parts molding according to claim 2, characterized in that: A hand wheel (23) is fixedly connected to the right end of the bidirectional threaded rod (8), and the hand wheel (23) is arranged on the outside of the lower die base (14).

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