Injection molding pouring device

Abstract

The utility model provides an injection molding pouring device which comprises a charging barrel installed at the bottom of a stock bin, a connecting ring is fixedly connected to the upper end of the charging barrel, a plurality of fixing holes are annularly formed in the upper surface of the connecting ring at equal intervals, a discharging pipe is fixedly connected to the bottom of the charging barrel, and a pouring nozzle is arranged on the discharging pipe in a sleeved mode. A ring is fixedly connected to the upper end of the pouring nozzle, a sealing ring is arranged on the upper side of the ring, the sealing ring sleeves the discharging pipe, a limiting ring is arranged on the lower side of the ring, the pouring nozzle is sleeved with the limiting ring, two supporting arms are symmetrically and fixedly connected to the outer surface of the limiting ring, and L-shaped plates are fixedly connected to the ends, away from the limiting ring, of the supporting arms; the horizontal part of the L-shaped plate is connected with a connecting plate through a connecting piece, the upper surface of the connecting plate is provided with a through hole aligned with the fixing hole, and a positioning screw is inserted in a channel formed by the through hole and the fixing hole.

Description

Technical Field

[0001] The utility model relates to an injection molding pouring device, belonging to the field of injection molding. Background Art

[0002] Automotive plastic parts refer to all plastic parts except the car frame. Some automotive plastic parts are formed through injection molds. In order to facilitate the molten plastic raw materials to be pressed from the silo into the mold cavity of the injection mold, it is necessary to install a barrel with a pouring nozzle at the bottom of the silo, so that the molten plastic raw materials can flow into the mold cavity of the injection mold through the pouring nozzle with a smaller inner diameter. Using screws to install the pouring nozzle at the bottom of the barrel is one of the ways to install the pouring nozzle, that is, the pouring nozzle needs to be connected to the barrel with multiple screws, and the barrel also needs to be connected to the silo with multiple screws, which increases the use of screws and is inconvenient for disassembly and assembly. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an injection molding pouring device to solve the problems raised in the above background technology. The present invention reduces the amount of screws used.

[0004] In order to achieve the above-mentioned object, the utility model is realized through the following technical scheme: an injection molding pouring device, comprising a barrel installed at the bottom of a silo, the upper end of the barrel is open, a connecting ring is connected and fixed to the upper end of the barrel, a plurality of fixing holes are opened in an annular shape and equidistantly on the upper surface of the connecting ring, a discharge pipe is connected and fixed to the bottom of the barrel, a pouring nozzle is sleeved on the discharge pipe, a ring is connected and fixed to the upper end of the pouring nozzle, the ring is sleeved on the discharge pipe, a sealing ring is provided on the upper side of the ring, the sealing ring is sleeved on the discharge pipe, a limiting ring is provided on the lower side of the ring, the limiting ring is sleeved on the pouring nozzle, two arms are symmetrically connected and fixed to the outer surface of the limiting ring, an L-shaped plate is connected and fixed to the end of the arm away from the limiting ring, the horizontal part of the L-shaped plate is connected to the connecting plate through a connecting piece, the connecting plate is a U-shaped structure, a through-hole is opened on the upper surface of the connecting plate and aligned with the fixing hole, and a positioning screw is inserted in the channel formed by the through-hole and the fixing hole.

[0005] Furthermore, the connecting part includes a column rod, a guide hole is opened on the upper surface of the L-shaped plate, a column rod is inserted in the guide hole, the upper end of the column rod is connected and fixed to the connecting plate, a spring is provided on the lower side of the guide hole, the spring is sleeved on the column rod, the outer surface of the lower end of the column rod is processed with an external thread, and one end of the column rod with the external thread is threadedly connected to a nut for limiting the position of the spring.

[0006] Furthermore, a positioning hole is provided in the middle of the lower surface of the connecting plate, and the upper end of the column rod is connected and fixed in the positioning hole.

[0007] Furthermore, the L-shaped plate and the support arm are an integrally formed structure, and the vertical portion of the L-shaped plate and the support arm are arranged perpendicular to each other.

[0008] Furthermore, the side of the ring facing the limiting ring is recessed upward to form two blind holes, and the side of the limiting ring facing the ring is fixed with two protrusions matching the blind holes, and the protrusions are inserted into the blind holes.

[0009] Furthermore, the connecting ring and the barrel are an integrally formed structure, and the discharge pipe and the barrel are an integrally formed structure.

[0010] Beneficial effects of the utility model:

[0011] 1. Put the pouring nozzle on the discharge pipe so that the ring fits with the sealing ring, then use the limit ring to limit the position of the ring, and then align the perforation on the connecting plate with the fixing hole on the connecting ring. Pass the positioning screw through the channel formed by the perforation and the fixing hole and connect it to the silo. The positioning screw is used to limit the relative position between the barrel and the silo, as well as the relative position between the pouring nozzle and the barrel, which reduces the use of screws and facilitates disassembly and assembly.

[0012] 2. Make the column on the connecting plate pass through the guide hole on the L-shaped plate, and put a spring on the column and screw on the nut. Under the support of the nut, the spring is in an elastic deformation state. Then, under the action of the spring rebound force, the limit ring squeezes the ring, so that the ring and the sealing ring fit more closely, thereby improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a structural diagram of an injection molding pouring device of the utility model;

[0015] Figure 2 This is a three-dimensional diagram from another perspective of an injection molding pouring device of the utility model;

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a schematic diagram of the assembly of a discharge pipe, a sealing ring and a barrel in an injection molding pouring device of the utility model;

[0018] Figure 5 This is a schematic diagram of the assembly of a discharge pipe, a sealing ring and a barrel in an injection molding pouring device of the utility model;

[0019] Figure 6This is a three-dimensional diagram of a connecting plate in an injection molding device of the utility model;

[0020] Figure 7 This is a schematic diagram of the assembly of an L-shaped plate, a support arm and a limiting ring in an injection molding pouring device of the utility model;

[0021] Figure 8 This is a schematic diagram of the assembly of a ring and a pouring nozzle in an injection molding pouring device of the utility model;

[0022] In the figure: 1-barrel, 2-pouring nozzle, 3-connecting plate, 4-positioning screw, 5-connecting ring, 6-fixing hole, 7-support arm, 8-L-shaped plate, 9-sealing ring, 10-ring, 11-limiting ring, 12-spring, 13-column, 14-nut, 15-discharge pipe, 16-through hole, 17-positioning hole, 18-guide hole, 19-protrusion, 20-blind hole. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] See also Figure 1 and Figure 2 The utility model provides a technical solution: an injection molding pouring device, comprising a barrel 1 installed at the bottom of a silo, the upper end of the barrel 1 is open, and a connecting ring 5 is fixedly connected to the upper end of the barrel 1. The connecting ring 5 and the barrel 1 are an integrally formed structure, and a plurality of fixing holes 6 are equidistantly provided on the upper surface of the connecting ring 5 in an annular shape. The design of the connecting ring 5 facilitates the installation of the barrel 1 at the bottom of the silo.

[0025] See Figure 2-Figure 4 A discharge pipe 15 is connected and fixed to the bottom of the barrel 1. The discharge pipe 15 and the barrel 1 are an integrally formed structure. A pouring nozzle 2 is sleeved on the discharge pipe 15. A ring 10 is connected and fixed to the upper end of the pouring nozzle 2. The ring 10 is sleeved on the discharge pipe 15. A sealing ring 9 is provided on the upper side of the ring 10. The sealing ring 9 is sleeved on the discharge pipe 15. A sealing ring 9 is installed between the ring 10 and the bottom of the barrel 1 to improve the sealing between the pouring nozzle 2 and the discharge pipe 15.

[0026] See Figures 1-8A limiting ring 11 is provided on the lower side of the ring 10, and the limiting ring 11 is sleeved on the pouring nozzle 2. The outer surface of the limiting ring 11 is symmetrically connected and fixed with two support arms 7. The end of the support arm 7 away from the limiting ring 11 is connected and fixed with an L-shaped plate 8, wherein the L-shaped plate 8 and the support arm 7 are an integrally formed structure, and the vertical portion of the L-shaped plate 8 and the support arm 7 are arranged perpendicular to each other. A guide hole 18 is opened on the upper surface of the L-shaped plate 8, and a column 13 is inserted in the guide hole 18. The upper end of the column 13 is connected and fixed to the connecting plate 3, wherein the connecting A positioning hole 17 is provided in the middle of the lower surface of the plate 3, so that the upper end of the column 13 is connected and fixed in the positioning hole 17, thereby improving the stability of the connection between the column 13 and the connecting plate 3. A spring 12 is provided on the lower side of the guide hole 18. The spring 12 is sleeved on the column 13. The outer surface of the lower end of the column 13 is processed with an external thread. One end of the column 13 is threadedly connected with a nut 14 for limiting the position of the spring 12. The connecting plate 3 is a U-shaped structure. The upper surface of the connecting plate 3 is provided with a hole opposite to the fixing hole 6. The through-holes 16 are aligned, and the positioning screws 4 are inserted into the channel formed by the through-holes 16 and the fixing holes 6. The pouring nozzle 2 is set on the discharge pipe 15 so that the ring 10 fits with the sealing ring 9. Then the position of the ring 10 is limited by the limiting ring 11. Then the through-holes 16 on the connecting plate 3 are aligned with the fixing holes 6 on the connecting ring 5. The positioning screws 4 are passed through the channel formed by the through-holes 16 and the fixing holes 6 and are connected to the silo, so that the relative position between the barrel 1 and the silo is limited by the positioning screws 4. The relative position between the pouring nozzle 2 and the barrel 1 is limited, the use of screws is reduced, and disassembly and assembly are facilitated, so that the column 13 on the connecting plate 3 passes through the guide hole 18 on the L-shaped plate 8, and a spring 12 is sleeved on the column 13 and a nut 14 is screwed on. Under the support of the nut 14, the spring 12 is in an elastic deformation state, and then under the action of the rebound force of the spring 12, the limiting ring 11 squeezes the ring 10, so that the ring 10 and the sealing ring 9 fit more closely, thereby improving the sealing performance.

[0027] See Figure 7 and Figure 8 The side of the ring 10 facing the limiting ring 11 is recessed upward to form two blind holes 20. The side of the limiting ring 11 facing the ring 10 is fixed with two protrusions 19 that match the blind holes 20, so that the two protrusions 19 are respectively inserted into the two blind holes 20 to limit the position of the pouring nozzle 2 and prevent the pouring nozzle 2 from rotating around the discharge pipe 15.

[0028] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An injection molding device, comprising a barrel (1) mounted at the bottom of a silo, characterized in that: The upper end of the barrel (1) is open, and a connecting ring (5) is connected and fixed to the upper end of the barrel (1), and a plurality of fixing holes (6) are opened in an annular shape on the upper surface of the connecting ring (5) at equal intervals. A discharge pipe (15) is connected and fixed to the bottom of the barrel (1), and a pouring nozzle (2) is sleeved on the discharge pipe (15). A ring (10) is connected and fixed to the upper end of the pouring nozzle (2), and the ring (10) is sleeved on the discharge pipe (15). A sealing ring (9) is provided on the upper side of the ring (10), and the sealing ring (9) is sleeved on the discharge pipe (15). The ring (10) A limiting ring (11) is provided on the lower side, and the limiting ring (11) is sleeved on the pouring nozzle (2). Two supporting arms (7) are symmetrically connected and fixed to the outer surface of the limiting ring (11). An end of the supporting arm (7) away from the limiting ring (11) is connected and fixed to an L-shaped plate (8). The horizontal part of the L-shaped plate (8) is connected to a connecting plate (3) through a connecting piece. The connecting plate (3) is a U-shaped structure. A through hole (16) aligned with the fixing hole (6) is opened on the upper surface of the connecting plate (3), and a positioning screw (4) is inserted into the channel formed by the through hole (16) and the fixing hole (6).

2. An injection molding pouring device according to claim 1, characterized in that: The connecting member includes a column rod (13), a guide hole (18) is opened on the upper surface of the L-shaped plate (8), the column rod (13) is inserted into the guide hole (18), the upper end of the column rod (13) is connected and fixed to the connecting plate (3), a spring (12) is provided on the lower side of the guide hole (18), the spring (12) is sleeved on the column rod (13), the outer surface of the lower end of the column rod (13) is processed with an external thread, and one end of the column rod (13) processed with the external thread is threadedly connected to a nut (14) for limiting the position of the spring (12).

3. The injection molding device according to claim 2, characterized in that: A positioning hole (17) is provided in the middle of the lower surface of the connecting plate (3), and the upper end of the column (13) is connected and fixed in the positioning hole (17).

4. The injection molding device according to claim 1, characterized in that: The L-shaped plate (8) and the support arm (7) are an integrally formed structure, and the vertical portion of the L-shaped plate (8) and the support arm (7) are arranged perpendicular to each other.

5. The injection molding device according to claim 1, characterized in that: The side of the ring (10) facing the limiting ring (11) is recessed upward to form two blind holes (20); the side of the limiting ring (11) facing the ring (10) is fixed with two protrusions (19) that match the blind holes (20); the protrusions (19) are inserted into the blind holes (20).

6. The injection molding device according to claim 1, characterized in that: The connecting ring (5) and the barrel (1) are an integrally formed structure, and the discharge pipe (15) and the barrel (1) are an integrally formed structure.

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