Novel polylactic acid biodegradable environment-friendly plastic injection molding equipment

Abstract

The utility model relates to the technical field of plastic injection molding equipment, in particular to novel polylactic acid biodegradable environment-friendly plastic injection molding equipment. The problem that in the prior art, a mold of injection molding equipment is difficult to replace is solved, and the practicability of the equipment is improved. The device structurally comprises a fixing frame, a storage box is fixed to one side of the fixing frame, a fixed mold is fixed to the other side of the fixing frame, a feeding hole is formed in the fixed mold, a plurality of first sliding rails are fixed to the fixed mold, sliding pieces are arranged on the first sliding rails, and the first sliding rails are in sliding connection with the sliding pieces; the fixing frame is further provided with a driving structure used for enabling the sliding piece to move towards the fixed mold or move away from the fixed mold, and the sliding piece is detachably connected with a movable mold. On the premise that it is guaranteed that the down lamp is convenient to disassemble and assemble, the down lamp is connected with a ceiling more tightly after being installed, and the structure is more stable. The utility model has the advantages of longer service life and stronger practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic injection molding equipment, and specifically relates to novel polylactic acid biodegradable environmentally friendly plastic injection molding equipment. Background Art

[0002] Lactic acid biodegradable environmentally friendly plastics are plastics made from polymer materials extracted from plants such as corn and sugar cane. Among them, plastic injection molding equipment is the equipment that heats, melts, and molds these raw materials.

[0003] In order to ensure accurate mold closing, existing plastic injection molding equipment often sets multiple sliding rails on the fixed mold, allowing the movable mold to be slidably connected to the multiple sliding rails at the same time, and the hydraulic cylinder brings the movable mold closer to the fixed mold for mold closing or mold separation.

[0004] Although this can achieve precise mold closing and parting, the following problems still exist: when it is necessary to produce products of other specifications or other products, the movable mold needs to be replaced. Since the movable mold is slidably connected to multiple sliding rails at the same time, if it is replaced, it is necessary to remove the entire sliding rail from the fixed mold or remove the fixed mold from the sliding rail, making the disassembly and installation process very cumbersome. Utility Model Content

[0005] The utility model provides a novel polylactic acid biodegradable environmentally friendly plastic injection molding equipment, which solves the problem of difficulty in replacing molds of injection molding equipment in the prior art and improves the practicability of the equipment.

[0006] The technical solution of the utility model is as follows:

[0007] A new type of polylactic acid biodegradable environmentally friendly plastic injection molding equipment, including a fixing frame,

[0008] A material storage box is fixed on one side of the fixed frame, and a fixed mold is fixed on the other side of the fixed frame. A feeding hole is provided on the fixed mold, and a plurality of first sliding rails are fixed on the fixed mold. A sliding member is provided on the first sliding rails, and each of the first sliding rails is slidably connected to the sliding member. A driving structure for moving the sliding member toward or away from the fixed mold is also provided on the fixed frame, and a movable mold is detachably connected to the sliding member. A transport structure for transporting material in the material storage box to the feeding hole is provided between the material storage box and the fixed mold.

[0009] Furthermore, the sliding member is a rectangular structure, a first sliding groove is provided on the sliding member, the first sliding groove is a "convex" shaped structure, the movable mold is slidingly connected to the first sliding groove, a plurality of positioning bolts are provided between the movable mold and the sliding member, the positioning bolts are arranged on the side of the sliding member away from the fixed mold, and the movable mold and the sliding member are connected and fixed by the positioning bolts.

[0010] Furthermore, a first fixed plate is fixed to the other end of the first sliding rail, the first fixed plate is fixedly connected to the fixed frame, the driving structure includes a first telescopic member, the fixed end of the first telescopic member is fixedly connected to the first fixed plate, and the telescopic end of the first telescopic member is fixed to the sliding member by bolts.

[0011] Furthermore, the material storage box includes a material storage portion and a material collection portion, the material storage portion is a cylindrical structure, the material collection portion is a truncated cone structure, the cross-sectional area of ​​the material collection portion away from the end of the material storage portion is smaller than the cross-sectional area of ​​the material collection portion close to the material storage portion, a material feed port is provided at the top of the material storage portion, and a material discharge port is provided at the bottom of the material collection portion.

[0012] Furthermore, the transport structure includes a transport pipe, a spiral rod is rotatably connected inside the transport pipe, the top of the transport pipe is connected to the discharge port, the other end of the transport pipe is connected to the feed hole, and a heating device is fixed to the inner wall of the transport pipe.

[0013] Furthermore, the fixed mold is provided with a plurality of ejectors, the fixed mold is fixed with a second fixed plate at the end away from the movable mold, the fixed mold is provided with a second sliding groove, the second sliding groove is slidably connected with a sliding plate, each of the ejectors is fixedly connected to the sliding plate, the second fixed plate is provided with a second telescopic member, the fixed end of the second telescopic member is fixedly connected to the second fixed plate, and the telescopic end of the second telescopic member is fixedly connected to the sliding plate.

[0014] Furthermore, a plurality of second sliding rails are fixed between the sliding groove and the second fixed plate, and each of the second sliding rails is slidably connected to the sliding plate.

[0015] The working principle and beneficial effects of the utility model are:

[0016] The working process of this embodiment is as follows: when the mold needs to be replaced, the positioning bolt is turned to disengage the movable mold from the first sliding groove, and then the new mold is placed in the first sliding groove and fixed by the positioning bolt. When processing plastics, the first telescopic member is first started to extend so that the movable mold and the fixed mold are molded together, and then the raw materials are fed into the storage box from the feed port and into the transport pipe through the discharge port of the storage box, and are transported by the spiral rod and heated by the heating device, and the raw materials are melted and introduced from the feed port into the movable mold and the fixed mold for molding, and then the first telescopic rod is retracted to realize mold separation, and the ejector pin is ejected by the second telescopic member to demold the molded product.

[0017] The utility model has several mounting structures arranged on the shell, and a control structure arranged inside the shell, and the control structure is used to control the mounting structure to lock the shell to the ceiling or to detach the shell from the ceiling. The utility model replaces the design of fixing the shell to the ceiling by limiting spring pieces in the prior art, and under the premise of ensuring the convenience of disassembly and installation of the downlight, the downlight is more tightly connected to the ceiling after installation, and the structure is more stable. The utility model has a longer service life and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a structural schematic diagram of the prior art;

[0020] Figure 2 This is a schematic diagram of the overall structure of this embodiment;

[0021] Figure 3 The structure of the movable mold and the fixed mold in this embodiment is schematically shown. Figure 1 ;

[0022] Figure 4 The structure of the movable mold and the fixed mold in this embodiment is schematically shown. Figure 2 ;

[0023] Figure 5 Schematic diagram of the structure of the ejector pin in this embodiment;

[0024] Figure 6 Schematic diagram of the structure of the transport pipe in this embodiment.

[0025] In the figure:

[0026] 1. Fixed frame; 11. First fixed plate; 2. Storage box; 21. Storage part; 211. Feed port; 22. Collecting part; 221. Discharge port; 3. Transport pipe; 31. Screw rod; 32. Heating device; 4. Fixed mold; 41. First sliding rail; 42. Feed hole; 43. Second sliding groove; 431. Second sliding rail; 44. Second fixed plate; 5. Sliding member; 51. First sliding groove; 52. Moving mold; 53. Positioning bolt; 6. Second telescopic member; 7. First telescopic member; 8. Ejector pin; 81. Sliding plate. DETAILED DESCRIPTION

[0027] The following will be combined with 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.

[0028] like Figure 2 to Figure 6 As shown, this embodiment proposes a novel polylactic acid biodegradable environmentally friendly plastic injection molding equipment, and its structure includes a fixed frame 1. The storage box 2 in this embodiment is fixedly arranged on one side of the fixed frame 1, the fixed mold 4 is fixedly arranged on the other side of the fixed frame 1, the feed hole 42 is arranged on the fixed mold 4, a plurality of first sliding rails 41 are fixedly arranged on the fixed mold 4, and the sliding member 5 is arranged on the first sliding rail 41. Each first sliding rail 41 is slidably connected with the sliding member 5. The driving structure is arranged on the fixed frame 1, and is used to move the sliding member 5 toward the fixed mold 4 or away from the fixed mold 4. The movable mold 52 is detachably arranged on the sliding member 5, and the transport structure is arranged between the storage box 2 and the fixed mold 4, and is used to transport the material in the storage box 2 to the feed hole 42.

[0029] Several ejector pins 8 in this embodiment are arranged on the fixed mold 4, the second fixed plate 44 is fixedly arranged at the end of the fixed mold 4 away from the movable mold 52, the second sliding groove 43 is arranged on the fixed mold 4, the sliding plate 81 is slidingly arranged in the second sliding groove 43, each ejector pin 8 is fixedly connected to the sliding plate 81, the second telescopic member 6 is arranged on the second fixed plate 44, the fixed end of the second telescopic member 6 is fixedly connected to the second fixed plate 44, and the telescopic end of the second telescopic member 6 is fixedly connected to the sliding plate 81. The second telescopic member 6 in this embodiment is preferably a hydraulic cylinder or a cylinder. Among them, the hydraulic cylinder or the cylinder are both prior art, and this embodiment will not be repeated. Such a design ensures that when the product in the mold is difficult to demold in the mold, the product can be demolded and ejected by opening the second telescopic member 6.

[0030] In this embodiment, a plurality of second sliding rails 431 are fixedly arranged between the sliding groove and the second fixed plate 44, and each second sliding rail 431 is slidingly connected to the sliding plate 81. The design of the plurality of second sliding rails 431 ensures that the sliding plate 81 will not be offset during the sliding process, and ensures that the ejector 8 ejects the product more accurately.

[0031] The first fixed plate 11 in this embodiment is fixedly arranged at the other end of the first sliding rail 41, the first fixed plate 11 is fixedly connected to the fixed frame 1, the driving structure includes a first telescopic member 7, the fixed end of the first telescopic member 7 is fixedly connected to the first fixed plate 11, and the telescopic end of the first telescopic member 7 is fixed to the sliding member 5 by bolt connection. The first telescopic member 7 in this embodiment is preferably a hydraulic cylinder or a pneumatic cylinder. Among them, the hydraulic cylinder or the cylinder are both prior art, and will not be repeated in this embodiment. Such a design allows a short buffer force when the fixed mold 4 collides with the movable mold 52 during mold closing, ensuring a more stable mold closing.

[0032] The sliding member 5 in this embodiment is a rectangular parallelepiped structure, the first sliding groove 51 is arranged on the sliding member 5, the first sliding groove 51 is a "convex"-shaped structure, the movable mold 52 is slidingly connected with the first sliding groove 51, a plurality of positioning bolts 53 are arranged between the movable mold 52 and the sliding member 5, the positioning bolts 53 are arranged on the side of the sliding member 5 away from the fixed mold 4, and the movable mold 52 and the sliding member 5 are connected and fixed by the positioning bolts 53. In this embodiment, the movable mold 52 is fixed to the sliding member 5 or the movable mold 52 is separated from the sliding member 5 by the positioning bolts 53, which is convenient for the disassembly and installation of the movable mold 52 relative to the sliding member 5, and convenient for timely replacement of the movable mold 52 when it is damaged. The design of the first sliding groove 51 ensures the positioning of the movable mold 52 relative to the sliding member 5, and prevents the movable mold 52 from being offset when the fixed mold 4 is molded.

[0033] The material storage box 2 in this embodiment includes a material storage portion 21 and a material collection portion 22, the material storage portion 21 is a cylindrical structure, the material collection portion 22 is a truncated cone structure, the cross-sectional area of ​​the end of the material collection portion 22 away from the material storage portion 21 is smaller than the cross-sectional area of ​​the material collection portion 22 close to the material storage portion 21, the feed port 211 is arranged at the top of the material storage portion 21, and the discharge port 221 is arranged at the bottom of the material collection portion 22. The cylindrical structure of the material storage portion 21 ensures a large storage volume, and the truncated cone structure of the material collection portion 22 allows the material to gather toward the discharge port 221, which is convenient for the material to be discharged at the discharge port 221.

[0034] The transport structure in this embodiment includes a transport pipe 3, a screw rod 31 rotatably disposed in the transport pipe 3, the top of the transport pipe 3 is connected to the discharge port 221, the other end of the transport pipe 3 is connected to the feed hole 42, and a heating device 32 is fixedly disposed on the inner wall of the transport pipe 3. The heating device 32 in this embodiment is a prior art, and will not be described in detail in this embodiment. In this embodiment, the screw rod 31 is used to drive the raw material to move toward the fixed mold 4, and the heating device 32 on the inner wall is used to melt and heat the raw material during the movement process.

[0035] The working process of this embodiment is as follows: when the mold needs to be replaced, the positioning bolt 53 is rotated to disengage the movable mold 52 from the first sliding groove 51, and then the new mold is placed in the first sliding groove 51, and the new mold is installed and fixed by the positioning bolt 53. When processing plastics, the first telescopic member 7 is first started to extend so that the movable mold 52 and the fixed mold 4 are molded together, and then the raw materials enter the storage box 2 from the feed port 211, and enter the transport pipe 3 through the discharge port 221 of the storage box 2, and are transported by the spiral rod 31 and heated by the heating device 32, and the raw materials are melted and introduced from the feed port 211 into the movable mold 52 and the fixed mold 4 for molding, and then the first telescopic rod is retracted to realize mold separation, and the ejector pin 8 is ejected by the second telescopic member 6 to demold the molded product.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel polylactic acid biodegradable environmentally friendly plastic injection molding equipment, comprising a fixing frame (1), characterized in that: A material storage box (2) is fixed on one side of the fixed frame (1), and a fixed mold (4) is fixed on the other side of the fixed frame (1). A feed hole (42) is provided on the fixed mold (4). A plurality of first sliding rails (41) are fixed on the fixed mold (4). A sliding member (5) is provided on the first sliding rails (41). Each of the first sliding rails (41) is slidably connected to the sliding member (5). A driving structure for moving the sliding member (5) toward or away from the fixed mold (4) is also provided on the fixed frame (1). A movable mold (52) is detachably connected to the sliding member (5). A transport structure for transporting material in the material storage box (2) to the feed hole (42) is provided between the material storage box (2) and the fixed mold (4).

2. The novel polylactic acid biodegradable environmentally friendly plastic injection molding equipment according to claim 1 is characterized in that: The sliding member (5) is a rectangular parallelepiped structure. A first sliding groove (51) is provided on the sliding member (5). The first sliding groove (51) is a "convex"-shaped structure. The movable mold (52) is slidingly connected to the first sliding groove (51). A plurality of positioning bolts (53) are provided between the movable mold (52) and the sliding member (5). The positioning bolts (53) are arranged on a side of the sliding member (5) away from the fixed mold (4). The movable mold (52) and the sliding member (5) are connected and fixed by the positioning bolts (53).

3. The novel polylactic acid biodegradable environmentally friendly plastic injection molding equipment according to claim 1 is characterized in that: A first fixed plate (11) is fixed to the other end of the first sliding rail (41), and the first fixed plate (11) is fixedly connected to the fixed frame (1). The driving structure comprises a first telescopic member (7), and the fixed end of the first telescopic member (7) is fixedly connected to the first fixed plate (11), and the telescopic end of the first telescopic member (7) is fixedly connected to the sliding member (5) by bolt connection.

4. The novel polylactic acid biodegradable environmentally friendly plastic injection molding equipment according to claim 2 is characterized in that: The material storage box (2) comprises a material storage portion (21) and a material collection portion (22); the material storage portion (21) is a cylindrical structure, the material collection portion (22) is a truncated cone structure, the cross-sectional area of ​​the end of the material collection portion (22) away from the material storage portion (21) is smaller than the cross-sectional area of ​​the end of the material collection portion (22) close to the material storage portion (21), the top of the material storage portion (21) is provided with a material inlet (211), and the bottom of the material collection portion (22) is provided with a material outlet (221).

5. The novel polylactic acid biodegradable environmentally friendly plastic injection molding equipment according to claim 4 is characterized in that: The transport structure comprises a transport pipe (3), a spiral rod (31) is rotatably connected inside the transport pipe (3), the top of the transport pipe (3) is connected to a discharge port (221), the other end of the transport pipe (3) is connected to a feed hole (42), and a heating device (32) is fixed to the inner wall of the transport pipe (3).

6. The novel polylactic acid biodegradable environmentally friendly plastic injection molding equipment according to claim 1 is characterized in that: The fixed mold (4) is provided with a plurality of ejector pins (8); a second fixed plate (44) is fixed to the end of the fixed mold (4) away from the movable mold (52); a second sliding groove (43) is provided on the fixed mold (4); a sliding plate (81) is slidably connected in the second sliding groove (43); each ejector pin (8) is fixedly connected to the sliding plate (81); a second telescopic member (6) is provided on the second fixed plate (44); a fixed end of the second telescopic member (6) is fixedly connected to the second fixed plate (44); and a telescopic end of the second telescopic member (6) is fixedly connected to the sliding plate (81).

7. The novel polylactic acid biodegradable environmentally friendly plastic injection molding equipment according to claim 6 is characterized in that: A plurality of second sliding rails (431) are also fixed between the sliding groove and the second fixed plate (44), and each of the second sliding rails (431) is slidingly connected to the sliding plate (81).

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