Plastic pipe fitting injection molding machine easy to discharge

By designing an injection molding machine including opening and closing mechanism and moving mechanism, the problem of difficult plastic pipe fittings falling off naturally is solved, and the effect of natural fall off without manpower and the effect of improving injection molding efficiency is achieved.

CN222875148UActive Publication Date: 2025-05-16BAODING GUANGFU PLASTIC PROD CO LTD
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Patent Information

Application Number
CN202421889821.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-06
Publication Date
2025-05-16
Estimated Expiration
2034-08-06

AI Technical Summary

Technical Problem

After the existing injection molding machine, the plastic pipe fittings are easily stuck to the mold and difficult to fall off naturally, resulting in a reduced injection molding efficiency and an increased risk of operators.

Method used

An injection molding machine including a base plate, an extrusion cylinder, a supporting mold, a shaping mold, an opening and closing mechanism, a moving mechanism and an extrusion mechanism are designed. Through the cooperation of the opening and closing mechanism and a moving mechanism, the opening and closing of the setting mold is realized, so that the plastic pipe fittings will fall off naturally.

Benefits of technology

The plastic pipe fittings can fall off naturally without manpower, which improves injection molding efficiency and reduces the risk of operators.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222875148U_ABST
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Abstract

The utility model relates to the technical field of injection molding machines, and provides an easy-to-discharge plastic pipe injection molding machine, which comprises a bottom plate, an extrusion cylinder, a support mold, a shaping mold, an opening and closing mechanism, a moving mechanism and an extrusion mechanism, the extrusion cylinder is arranged on the bottom plate, an extrusion opening is formed in the extrusion cylinder, the support mold is arranged at the extrusion opening, and the shaping mold is arranged on the extrusion opening. An injection molding opening is formed in the supporting mold, the two shaping molds are arranged, the supporting mold is arranged between the two shaping molds, the opening and closing mechanism is arranged on the bottom plate and used for driving the two shaping molds to be opened and closed, the moving mechanism is arranged on the bottom plate and used for supporting the two shaping molds to move, and the extruding mechanism is arranged on the extruding cylinder. By means of the technical scheme, the problems that in the related technology, a plastic pipe fitting is prone to being adhered to one mold, the plastic pipe fitting is difficult to fall off naturally, the injection molding efficiency of the plastic pipe fitting is reduced, and the danger of operators is increased are solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a plastic pipe molding machine which is easy to unload. Background Art

[0002] The injection molding machine is the main molding equipment that uses a plastic molding mold to make thermoplastic plastics or thermosetting plastics into plastic pipe fittings. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and shoot it into the mold cavity. After the molten plastic cools in the mold, the mold is opened and the finished product is taken out.

[0003] After the existing injection molding machine injects plastic pipe fittings, since the mold is divided into two halves, and one of the molds is also provided with a shaft for supporting the inner wall of the plastic pipe fitting, when the plastic pipe fitting is taken out of the mold, the plastic pipe fitting is easy to stick to one of the molds. Even if the two molds are separated, the plastic pipe fitting is difficult to fall off naturally and needs to be removed manually. Therefore, it not only reduces the injection molding efficiency of the plastic pipe fittings, but also increases the danger of the operator. Utility Model Content

[0004] The utility model provides a plastic pipe fitting injection molding machine which is easy to unload, which solves the problem in the related art that the plastic pipe fitting is easy to stick to one of the molds and is difficult to fall off naturally, which not only reduces the injection molding efficiency of the plastic pipe fitting but also increases the danger for operators.

[0005] The technical solution of the utility model is as follows: an easy-to-discharge plastic pipe injection molding machine, comprising: a bottom plate, an extrusion barrel, a supporting mold, a shaping mold, an opening and closing mechanism, a moving mechanism and an extrusion mechanism;

[0006] The extrusion tube is arranged on the bottom plate, and an extrusion port is provided on the extrusion tube;

[0007] The supporting mold is arranged at the extrusion port, and an injection port is provided in the supporting mold;

[0008] There are two shaping molds, and the supporting mold is arranged between the two shaping molds;

[0009] The opening and closing mechanism is arranged on the bottom plate and is used to drive the two shaping dies to open and close;

[0010] The moving mechanism is arranged on the bottom plate and is used to support the two shaping molds to move;

[0011] The extrusion mechanism is arranged on the extrusion cylinder and is used for extruding plastic.

[0012] Preferably, the opening and closing mechanism comprises: a support plate, a sliding shaft, a transmission assembly and a drive assembly;

[0013] The support plate is slidably arranged on the support plate, two slide grooves are arranged on the support plate, and the two shaping molds are rotatably arranged on the support plate;

[0014] There are two sliding shafts, the two sliding shafts are rotatably connected to the two shaping molds respectively, and the two sliding shafts are slidably arranged in the two sliding grooves respectively;

[0015] The transmission assembly is arranged on the support plate and is used to drive the two shaping dies to open and close;

[0016] The driving assembly is arranged on the supporting plate and is used for driving the transmission assembly to move.

[0017] Further, the transmission assembly includes: a connecting rod and a transmission rod;

[0018] There are two connecting rods, which are respectively fixedly connected to the two shaping molds and rotatably connected to the support plate, and the other ends of the two sliding shafts are respectively rotatably set on the two connecting rods;

[0019] There are two transmission rods, and the two transmission rods are rotatably connected to the two connecting rods respectively.

[0020] Furthermore, the driving assembly includes: a power frame, a fixing plate and a first electric cylinder;

[0021] The power frame is provided with two guide grooves, and the two transmission rods are respectively slidably and rotatably arranged in the two guide grooves;

[0022] The fixing plate is fixedly connected to the supporting plate;

[0023] The first electric cylinder is arranged on a fixed plate, and an output end of the first electric cylinder passes through the fixed plate and is fixedly connected to the power frame.

[0024] As a further solution of the present application, the moving mechanism includes: a moving ring, a sliding rod, a power assembly and a toggle assembly;

[0025] There are two movable rings, and both movable rings are fixedly connected to the support plate;

[0026] There are two sliding rods, both of which are fixedly connected to the bottom plate, and the two moving rings are slidably arranged on the two sliding rods respectively;

[0027] The power assembly is arranged on the bottom plate and is used to drive the support plate to move;

[0028] The pushing assembly is arranged on the supporting plate and is used for pushing the plastic pipe out of the supporting mold.

[0029] As a further solution of the present application, the power assembly includes: a gear plate, a driving gear and a first motor;

[0030] The tooth plate is fixedly connected to the bottom plate;

[0031] The driving gear is meshed with the toothed plate;

[0032] The first motor is arranged on the support plate, and the output end of the first motor is fixedly connected to the driving gear.

[0033] On the basis of the above scheme, the toggle assembly comprises: a connecting frame and a toggle ring;

[0034] The connecting frame is fixedly connected to the supporting plate;

[0035] The toggle ring is fixedly connected to the connecting frame, and the toggle ring is sleeved in the supporting mold.

[0036] Further on the basis of the above scheme, the extrusion mechanism includes: an extrusion paddle, a second motor and a feed box;

[0037] The extrusion paddle is rotatably arranged in the extrusion barrel;

[0038] The second motor is arranged on the extrusion barrel, and the output end of the second motor passes through the extrusion barrel and is fixedly connected to the extrusion paddle;

[0039] The feed box is connected to the extrusion barrel.

[0040] As a preferred technical solution of the present application, a plurality of stabilizing plates are fixedly connected to the bottom plate, and the two sliding rods are respectively fixedly connected between two stabilizing plates.

[0041] As a preferred technical solution of the present application, two baffles are fixedly connected to the two transmission rods, and the power frame is arranged between the baffles and the connecting rods.

[0042] The working principle and beneficial effects of the utility model are:

[0043] 1. In the utility model, the cooperation between the opening and closing mechanism and the moving mechanism facilitates the opening and closing of the two shaping molds, and the two shaping molds are moved away from the supporting mold, so that the plastic pipe fittings fall off naturally.

[0044] 2. In the utility model, the extrusion mechanism is arranged to facilitate extrusion of plastic into between the supporting mold and the shaping mold, thereby performing injection molding on the plastic pipe fitting.

[0045] 3. In the utility model, through the coordination among the bottom plate, the extrusion cylinder, the supporting mold, the shaping mold, the opening and closing mechanism, the moving mechanism and the extrusion mechanism, the plastic pipe fittings can be naturally detached without manpower, thereby improving the injection molding efficiency of the plastic pipe fittings and reducing the danger to the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0047] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0048] Figure 2 It is a structural schematic diagram of the utility model from another angle;

[0049] Figure 3 It is a structural schematic diagram of the shaping die and the opening and closing mechanism of the utility model;

[0050] Figure 4 It is a structural schematic diagram of the opening and closing mechanism of the utility model;

[0051] Figure 5 It is a schematic structural diagram of a cross-section of the extrusion mechanism of the utility model.

[0052] In the figure: 1. bottom plate; 2. extrusion barrel; 3. support mold; 4. shaping mold; 5. support plate; 6. sliding shaft; 7. connecting rod; 8. transmission rod; 9. power frame; 10. fixed plate; 11. first electric cylinder; 12. moving ring; 13. sliding rod; 14. gear plate; 15. driving gear; 16. first motor; 17. connecting frame; 18. toggle ring; 19. extrusion paddle; 20. second motor; 21. feed box; 22. stabilizing plate; 23. baffle. DETAILED DESCRIPTION

[0053] 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.

[0054] like Figure 1~Figure 5As shown, this embodiment proposes a plastic pipe injection molding machine that is easy to unload, including: a base plate 1, an extrusion barrel 2, a supporting mold 3, a shaping mold 4, an opening and closing mechanism, a moving mechanism and an extrusion mechanism, the extrusion barrel 2 is arranged on the base plate 1, the extrusion barrel 2 is provided with an extrusion port, the supporting mold 3 is arranged at the extrusion port, an injection port is provided in the supporting mold 3, two shaping molds 4 are provided, and the supporting mold 3 is arranged between the two shaping molds 4, through the cooperation among the base plate 1, the extrusion barrel 2, the supporting mold 3, the shaping mold 4, the opening and closing mechanism, the moving mechanism and the extrusion mechanism, the plastic pipe fittings can be naturally dropped without manpower, thereby improving the injection molding efficiency of the plastic pipe fittings and reducing the danger of the operators.

[0055] Among them, the opening and closing mechanism is arranged on the bottom plate 1, and is used to drive the two shaping molds 4 to open and close. The opening and closing mechanism includes: a support plate 5, a sliding shaft 6, a transmission assembly and a driving assembly. The support plate 5 is slidably arranged on the support plate 5, and two slide grooves are arranged on the support plate 5. The two shaping molds 4 are rotatably arranged on the support plate 5. There are two sliding shafts 6. The two sliding shafts 6 are respectively rotatably connected to the two shaping molds 4. The two sliding shafts 6 are respectively slidably arranged in the two slide grooves. The transmission assembly is arranged on the support plate 5, and is used to drive the two shaping molds 4 to open and close. The driving assembly is arranged on the support plate 5, and is used to drive the transmission assembly to move. The transmission assembly includes: a connecting rod 7 and a transmission rod 8. Two baffles 23 are fixedly connected to the two transmission rods 8. The power frame 9 is arranged between the baffle 23 and the connecting rod 7. There are two connecting rods 7. The two connecting rods 7 are respectively fixedly connected to the two shaping molds 4. The molding die 4 is on and rotatably connected to the support plate 5. The other ends of the two sliding shafts 6 are respectively rotatably set on the two connecting rods 7. There are two transmission rods 8, and the two transmission rods 8 are respectively rotatably connected to the two connecting rods 7. The driving assembly includes: a power frame 9, a fixed plate 10 and a first electric cylinder 11. Two guide grooves are provided on the power frame 9. The two transmission rods 8 are respectively slidably and rotatably set in the two guide grooves. The fixed plate 10 is fixedly connected to the support plate 5. The first electric cylinder 11 is set on the fixed plate 10. The output end of the first electric cylinder 11 passes through the fixed plate 10 and is fixedly connected to the power frame 9. Specifically, the power frame 9 is driven to move by the first electric cylinder 11 set on the fixed plate 10. When the power frame 9 moves, it drives the two transmission rods 8 to move in the guide groove, so that the connecting rod 7 supports the sliding shaft 6 to move in the slide groove, thereby driving the two molding dies 4 to open.

[0056] Among them, the moving mechanism is arranged on the bottom plate 1, and is used to support the two shaping molds 4 to move. The moving mechanism includes: a moving ring 12, a slide bar 13, a power assembly and a toggle assembly. A plurality of stabilizing plates 22 are fixedly connected to the bottom plate 1, and two slide bars 13 are respectively fixedly connected between the two stabilizing plates 22. There are two moving rings 12, and the two moving rings 12 are both fixedly connected to the support plate 5. There are two slide bars 13, and the two slide bars 13 are both fixedly connected to the bottom plate 1. The two moving rings 12 are respectively slidably arranged on the two slide bars 13. The power assembly is arranged on the bottom plate 1, and is used to drive the support plate 5 to move. The toggle assembly is arranged on the support plate 5, and is used to pull the plastic pipe out of the support mold 3. The power assembly includes: a tooth plate 14, a driving gear 15 and a first The motor 16 and the tooth plate 14 are fixedly connected to the base plate 1, the driving gear 15 is meshed with the tooth plate 14, the first motor 16 is arranged on the support plate 5, and the output end of the first motor 16 is fixedly connected to the driving gear 15. The toggle assembly includes: a connecting frame 17 and a toggle ring 18, the connecting frame 17 is fixedly connected to the support plate 5, the toggle ring 18 is fixedly connected to the connecting frame 17, and the toggle ring 18 is sleeved in the supporting mold 3. Specifically, the driving gear 15 is driven to rotate on the tooth plate 14 by the first motor 16 arranged on the support plate 5, thereby driving the support plate 5 and the moving ring 12 to move on the slide bar 13, driving the two shaping molds 4 away from the supporting mold 3, and driving the connecting frame 17 and the toggle ring 18 to push out the plastic pipe fittings on the support frame when the support plate 5 moves.

[0057] Among them, the extrusion mechanism is arranged on the extrusion barrel 2, which is used to extrude the plastic. The extrusion mechanism includes: an extrusion paddle 19, a second motor 20 and a feed box 21. The extrusion paddle 19 is rotatably arranged in the extrusion barrel 2, and the second motor 20 is arranged on the extrusion barrel 2. The output end of the second motor 20 passes through the extrusion barrel 2 and is fixedly connected to the extrusion paddle 19. The feed box 21 is connected to the extrusion barrel 2. Specifically, the heated plastic enters the extrusion barrel 2, and the extrusion barrel 2 is driven to rotate by the second motor 20, so as to extrude the plastic into the injection port opened on the supporting mold 3.

[0058] In this embodiment, when unloading the plastic pipe fittings, the first motor 16 arranged on the support plate 5 drives the driving gear 15 to rotate on the tooth plate 14, thereby driving the support plate 5 and the moving ring 12 to move on the slide rod 13, driving the two shaping molds 4 away from the support mold 3, and when the support plate 5 moves, it drives the connecting frame 17 and the toggle ring 18 to push out the plastic pipe fittings on the support frame, and the first electric cylinder arranged on the fixed plate 10 drives the power frame 9 to move. When the power frame 9 moves, it drives the two transmission rods 8 to move in the guide groove, and then the connecting rod 7 supports the sliding shaft 6 to move in the slide groove, and then drives the two shaping molds 4 to open, so that the plastic pipe fittings fall off naturally.

[0059] 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 plastic pipe injection molding machine that is easy to unload, characterized in that: include: Bottom plate (1); An extrusion cylinder (2), the extrusion cylinder (2) being arranged on the bottom plate (1), and the extrusion cylinder (2) being provided with an extrusion port; A supporting mold (3), the supporting mold (3) being arranged at the extrusion outlet, and an injection port being provided in the supporting mold (3); A shaping mold (4), wherein two shaping molds (4) are provided, and the supporting mold (3) is arranged between the two shaping molds (4); An opening and closing mechanism, the opening and closing mechanism being arranged on the bottom plate (1) and being used for driving the two shaping dies (4) to open and close; A moving mechanism, the moving mechanism being arranged on the base plate (1) and being used to support the two shaping dies (4) to move; An extrusion mechanism is arranged on the extrusion barrel (2) and is used to extrude plastic.

2. The easy-to-discharge plastic pipe injection molding machine according to claim 1, characterized in that: The opening and closing mechanism comprises: A support plate (5), the support plate (5) being slidably arranged on the support plate (5), the support plate (5) being provided with two slide grooves, and the two shaping molds (4) being rotatably arranged on the support plate (5); A sliding shaft (6), wherein two sliding shafts (6) are provided, and the two sliding shafts (6) are respectively rotatably connected to the two shaping molds (4), and the two sliding shafts (6) are respectively slidably arranged in two sliding grooves; A transmission assembly, the transmission assembly being arranged on the support plate (5) and being used for driving the two shaping dies (4) to open and close; A drive assembly, the drive assembly is arranged on the support plate (5) and is used to drive the transmission assembly to move.

3. The easy-to-discharge plastic pipe injection molding machine according to claim 2, characterized in that: The transmission assembly comprises: A connecting rod (7), wherein two connecting rods (7) are provided, and the two connecting rods (7) are respectively fixedly connected to the two shaping molds (4) and are both rotatably connected to the support plate (5), and the other ends of the two sliding shafts (6) are respectively rotatably arranged on the two connecting rods (7); A transmission rod (8), wherein two transmission rods (8) are provided, and the two transmission rods (8) are rotatably connected to the two connecting rods (7) respectively.

4. The easy-to-discharge plastic pipe injection molding machine according to claim 3, characterized in that: The drive assembly comprises: A power frame (9), wherein two guide grooves are formed on the power frame (9), and the two transmission rods (8) are respectively slidably and rotatably arranged in the two guide grooves; A fixing plate (10), the fixing plate (10) being fixedly connected to the supporting plate (5); A first electric cylinder (11), wherein the first electric cylinder (11) is arranged on the fixing plate (10), and an output end of the first electric cylinder (11) passes through the fixing plate (10) and is fixedly connected to the power frame (9).

5. The easy-to-discharge plastic pipe injection molding machine according to claim 4, characterized in that: The moving mechanism comprises: A moving ring (12), wherein two moving rings (12) are provided, and both moving rings (12) are fixedly connected to the support plate (5); A slide rod (13), wherein two slide rods (13) are provided, the two slide rods (13) are both fixedly connected to the bottom plate (1), and the two movable rings (12) are respectively slidably arranged on the two slide rods (13); A power assembly, the power assembly being arranged on the base plate (1) and being used to drive the support plate (5) to move; A toggling assembly, the toggling assembly being arranged on the support plate (5) and being used for toggling the plastic pipe fitting out of the support mould (3).

6. The easy-to-discharge plastic pipe injection molding machine according to claim 5, characterized in that: The power assembly comprises: A tooth plate (14), the tooth plate (14) being fixedly connected to the base plate (1); A driving gear (15), the driving gear (15) meshing with the toothed plate (14); A first motor (16), wherein the first motor (16) is arranged on the support plate (5), and an output end of the first motor (16) is fixedly connected to the driving gear (15).

7. The easy-to-discharge plastic pipe injection molding machine according to claim 6, characterized in that: The toggle assembly comprises: A connecting frame (17), the connecting frame (17) being fixedly connected to the supporting plate (5); A toggle ring (18), the toggle ring (18) is fixedly connected to the connecting frame (17), and the toggle ring (18) is sleeved in the supporting mold (3).

8. The easy-to-discharge plastic pipe injection molding machine according to claim 7, characterized in that: The extrusion mechanism comprises: An extrusion paddle (19), the extrusion paddle (19) being rotatably disposed in the extrusion barrel (2); a second motor (20), the second motor (20) being arranged on the extrusion barrel (2), the output end of the second motor (20) passing through the extrusion barrel (2) and being fixedly connected to the extrusion paddle (19); A feed box (21), wherein the feed box (21) is connected to the extrusion barrel (2).

9. The easy-to-discharge plastic pipe injection molding machine according to claim 8, characterized in that: A plurality of stabilizing plates (22) are fixedly connected to the bottom plate (1), and the two sliding rods (13) are respectively fixedly connected between the two stabilizing plates (22).

10. The easy-to-discharge plastic pipe injection molding machine according to claim 9, characterized in that: Two baffles (23) are fixedly connected to the two transmission rods (8), and the power frame (9) is arranged between the baffles (23) and the connecting rods (7).