Extrusion molding device for plastic pipe production

Abstract

This utility model discloses an extrusion molding device for the production of plastic pipe fittings, relating to the field of plastic pipe fitting extrusion molding technology. The device includes a mounting platform, with a screw conveyor mounted on the upper end of the platform. A protective cover is provided around the screw conveyor, and a mounting top is located on the upper end of the protective cover. A receiving sleeve is located outside the output end of the screw conveyor, with a conveying sleeve at one end and a heating sleeve outside the conveying sleeve. An extrusion head is located at one end of the conveying sleeve, and a feeding assembly is located at the upper end of the receiving sleeve. A blowing assembly is located on one side of the feeding assembly. This solution solves the problem that in existing plastic pipe fitting extrusion molding processes, the raw material is directly piled inside the hopper, resulting in a small diameter at the lowest discharge end, which easily leads to blockage and poor molding effect and stability of the plastic pipe fittings.

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe extrusion molding technology, specifically to an extrusion molding device for the production of plastic pipes. Background Technology

[0002] Extrusion molding in the production of plastic pipe fittings refers to a processing method that continuously extrudes plastic raw materials into tubular products through processes such as heating, plasticizing, and pressurizing. Single-thread extruders are commonly used for this production.

[0003] For example, the Chinese authorized patent with announcement number CN221187441U (a single-thread extruder with an easily detachable extrusion cylinder): includes a base, on the upper end of which an extruder body is mounted; a positioning mechanism, mounted on the upper end of the base, the surface of which is connected to the surface of the extruder body; wherein, the positioning mechanism includes an extrusion cylinder disposed on one side of the extruder body, one end of which is fixedly connected to a connecting flange; when the positioning mechanism is working, the device, through the cooperation of the top rotating column and the support seat, will stably support the extrusion cylinder during disassembly and assembly by the workers, preventing the extrusion cylinder from tipping over during disassembly. At the same time, with the cooperation of the adjusting component and the fastening component, the rotation of the extrusion cylinder will be reduced during lifting, thereby ensuring the safety of the surrounding workers.

[0004] However, in existing plastic pipe extrusion molding processes, the raw materials are directly piled inside the hopper, and the diameter of the lowest discharge end is small, which easily leads to blockage, resulting in poor molding effect and stability of the plastic pipes. Therefore, it does not meet the current requirements. To address this, we propose an extrusion molding device for the production of plastic pipes. Utility Model Content

[0005] The purpose of this invention is to provide an extrusion molding device for the production of plastic pipe fittings, in order to solve the problem mentioned in the background art that in the extrusion molding of existing plastic pipe fittings, the raw materials are directly piled inside the hopper, the diameter of the lowest discharge end is small, which easily leads to blockage and results in poor molding effect and stability of plastic pipe fittings.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an extrusion molding device for producing plastic pipe fittings, comprising: a mounting platform, a screw conveyor mounted on the upper end of the mounting platform, a protective cover mounted on the outside of the screw conveyor, a mounting top mounted on the upper end of the protective cover, a receiving sleeve mounted on the outside of the output end of the screw conveyor, a conveying sleeve mounted on one end of the receiving sleeve, a heating sleeve mounted on the outside of the conveying sleeve, an extrusion head mounted on one end of the conveying sleeve, a feeding assembly mounted on the upper end of the receiving sleeve, and a blowing assembly mounted on one side of the feeding assembly.

[0007] Preferably, the feeding assembly includes a receiving hopper, the lower end of which is provided with a discharge pipe, and the interior of the discharge pipe is in communication with the interior of the receiving sleeve, and the upper end of the receiving hopper is provided with a storage cylinder.

[0008] Preferably, the storage cylinder has a storage chamber inside, and the storage chamber extends through the storage cylinder from top to bottom. The bottom of the storage cylinder and the top of the receiving hopper are both provided with fixed flanges. The upper end of the fixed flange is provided with flange bolts, and the two fixed flanges are connected by flange bolts.

[0009] Preferably, the feeding assembly further includes a feeding cylinder, the upper surface of which is provided with an arc-shaped cavity, and the bottom surface of the arc-shaped cavity is provided with a discharge channel, and multiple discharge channels are provided, and the discharge channels penetrate through the feeding cylinder.

[0010] Preferably, the lower surface of the feed cylinder is provided with a connecting post, and the connecting post is welded and fixed to the feed cylinder; the upper surface of the storage cylinder is provided with a connecting slot, and the connecting post is inserted into the connecting slot.

[0011] Preferably, the blowing assembly includes a blower, and an air duct is provided between the blowing end of the blower and the receiving hopper, and the internal channel of the air duct is interconnected with the inside of the receiving hopper. The blowing assembly also includes a mounting bracket, and one end of the mounting bracket is welded and fixed to the blower. The other end of the mounting bracket is provided with a hexagonal bolt, and one end of the hexagonal bolt passes through the mounting bracket and is threadedly connected to the mounting top seat.

[0012] Preferably, the lower ends of the receiving sleeve and the conveying sleeve are each provided with a support frame, the lower end of the mounting platform is provided with a support frame, the front end of the support frame is provided with a control box, the upper end of the control box is provided with a control console, and both ends of the bottom of the support frame are provided with fixing plates.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model provides a feeding cylinder at the upper end of the storage cylinder. The upper surface of the feeding cylinder is a concave arc cavity, and multiple feeding channels are provided on the inner wall of the arc cavity. The feeding channels penetrate the feeding cylinder. During the production of plastic pipe fittings, the raw material is introduced into the arc cavity. When the raw material slides down the inner wall of the arc cavity, it falls into the storage cavity through the multiple feeding channels. The multiple feeding channels realize the diversion of feeding, reduce the feeding speed, avoid rapid accumulation and blockage, improve the stability of plastic pipe fitting extrusion molding and the integrity of the finished product. A blower is installed on one side of the barrel. The blower's outlet is connected to the receiving hopper via an air duct. When feeding material, the blower is started, and air is delivered into the receiving hopper through the air duct. This blows the material, causing it to move and preventing accumulation and blockage. This further improves the stability and integrity of the extruded plastic pipes. It solves the problem that in existing plastic pipe extrusion molding, the raw material is directly piled inside the feeding hopper, and the lowest discharge end has a small diameter, which easily leads to blockage and poor molding effect and stability of the plastic pipes.

[0015] (2) By setting a connecting slot on the upper surface of the storage cylinder and a connecting pin on the lower surface of the feed cylinder, the storage cylinder is placed on the receiving hopper, and the two fixed flanges are connected by flange bolts to fix the storage cylinder and the receiving hopper. Then the feed cylinder is placed on the upper end of the storage cylinder, and the connecting pin is inserted into the connecting slot to limit the feed cylinder and prevent it from shifting and falling, thereby improving the connection stability and facilitating quick disassembly and replacement, thus improving flexibility. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of the storage cylinder and the feed cylinder of this utility model;

[0018] Figure 3 This is a schematic diagram of the disassembled structure of the material storage cylinder and receiving hopper of this utility model;

[0019] Figure 4 This is a bottom view of the feed cylinder structure of this utility model;

[0020] In the diagram: 1. Mounting platform; 2. Screw conveyor; 3. Protective cover; 4. Receiving sleeve; 5. Conveying sleeve; 6. Heating sleeve; 7. Extrusion head; 8. Support frame; 9. Fixing plate; 10. Control box; 11. Control console; 12. Support frame two; 13. Mounting top seat; 14. Feeding assembly; 15. Blowing assembly; 16. Receiving hopper; 17. Discharge pipe; 18. Storage cylinder; 19. Fixed flange; 20. Flange bolts; 21. Storage cavity; 22. Feed cylinder; 23. Arc cavity; 24. Discharge channel; 25. Connecting pin; 26. Connecting slot; 27. Blower; 28. Air duct; 29. ​​Mounting frame; 30. Hex bolts. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-4 This utility model provides an embodiment of an extrusion molding device for producing plastic pipe fittings, comprising: a mounting platform 1, a screw conveyor 2 mounted on the upper end of the mounting platform 1, a protective cover 3 mounted on the outside of the screw conveyor 2, a mounting top seat 13 mounted on the upper end of the protective cover 3, a receiving sleeve 4 mounted on the outside of the output end of the screw conveyor 2, a conveying sleeve 5 mounted on one end of the receiving sleeve 4, a heating sleeve 6 mounted on the outside of the conveying sleeve 5, an extrusion head 7 mounted on one end of the conveying sleeve 5, a support frame 12 mounted on the lower end of both the receiving sleeve 4 and the conveying sleeve 5 to support the receiving sleeve 4 and the conveying sleeve 5, a support frame 8 mounted on the lower end of the mounting platform 1 to support the mounting platform 1, a control box 10 mounted on the front end of the support frame 8, a control console 11 mounted on the upper end of the control box 10, and fixing plates 9 mounted on both ends of the bottom end of the support frame 8, which are fixed to the ground by external bolts, thereby facilitating the fixing of the whole in the designated installation position;

[0023] A feeding assembly 14 is provided at the upper end of the receiving sleeve 4, and a blowing assembly 15 is provided on one side of the feeding assembly 14. The feeding assembly 14 includes a receiving hopper 16, and a discharge pipe 17 is provided at the lower end of the receiving hopper 16. The interior of the discharge pipe 17 is connected to the interior of the receiving sleeve 4. A storage cylinder 18 is provided at the upper end of the receiving hopper 16. A storage chamber 21 is provided inside the storage cylinder 18, and the storage chamber 21 extends through the storage cylinder 18 vertically. Fixed flanges 19 are provided on the outer bottom end of the storage cylinder 18 and the outer top end of the receiving hopper 16. Flange bolts 20 are provided on the upper end of the fixed flanges 19, and the two fixed flanges 19 are connected by flange bolts 20. The feeding assembly 14 also includes a feeding cylinder 22. The upper surface of the feeding cylinder 22 has an arc-shaped cavity 23. The bottom surface of the arc-shaped cavity 23 has multiple discharge channels 24 that penetrate the feeding cylinder 22. The lower surface of the feeding cylinder 22 has connecting pins 25, which are welded and fixed to the feeding cylinder 22. The upper surface of the storage cylinder 18 has a connecting slot 26, into which the connecting pins 25 are inserted. The storage cylinder 18 is placed on the receiving hopper 16, and two fixing flanges 19 are connected by flange bolts 20 to fix the storage cylinder 18 and the receiving hopper 16. Figure 2 As shown, the feed cylinder 22 is then placed on top of the storage cylinder 18, and the connecting pin 25 is inserted into the connecting slot 26 to limit the feed cylinder 22 and prevent it from shifting and falling, thereby improving connection stability and facilitating quick disassembly and replacement, thus increasing flexibility.

[0024] When producing plastic pipe fittings, the raw material is introduced into the arc cavity 23. As the raw material slides down the inner wall of the arc cavity 23, it falls into the storage cavity 21 through multiple feeding channels 24. The multiple feeding channels 24 realize the diversion of feeding, reduce the feeding speed, avoid rapid accumulation and blockage, and improve the stability of plastic pipe fitting extrusion molding and the integrity of finished products.

[0025] like Figure 2 As shown, the blowing assembly 15 includes a blower 27. An air duct 28 is provided between the blowing end of the blower 27 and the receiving hopper 16, and the internal channel of the air duct 28 is interconnected with the inside of the receiving hopper 16. The blowing assembly 15 also includes a mounting frame 29. One end of the mounting frame 29 is welded and fixed to the blower 27, and the other end of the mounting frame 29 is provided with a hexagonal bolt 30. One end of the hexagonal bolt 30 passes through the mounting frame 29 and is threadedly connected to the mounting top seat 13. The mounting frame 29 is fixed by the hexagonal bolt 30, thereby supporting the blower 27. When feeding material, the blower 27 is started, and air is delivered to the inside of the receiving hopper 16 through the air duct 28, which has a wind blowing effect on the material, causing it to move in position, thereby avoiding accumulation and blockage, and further improving the stability and integrity of the extrusion molding of plastic pipes.

[0026] The raw material falling into the receiving sleeve 4 is conveyed by the screw conveyor 2. When it passes through the conveying sleeve 5, it is heated and melted by the heating sleeve 6 and continues to move. The screw conveyor 2 continuously conveys and squeezes the material located at the extrusion head 7, thereby extruding it into shape along the extrusion head.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An extrusion molding device for plastic pipe production, comprising a mounting table (1), characterized in that: The upper end of the mounting platform (1) is provided with a screw conveyor (2), the outside of the screw conveyor (2) is provided with a protective cover (3), the upper end of the protective cover (3) is provided with a mounting top seat (13), the output end of the screw conveyor (2) is provided with a receiving sleeve (4), one end of the receiving sleeve (4) is provided with a conveying sleeve (5), the outside of the conveying sleeve (5) is provided with a heating sleeve (6), one end of the conveying sleeve (5) is provided with an extrusion head (7), the upper end of the receiving sleeve (4) is provided with a feeding assembly (14), and one side of the feeding assembly (14) is provided with a blowing assembly (15).

2. The extrusion molding device for plastic pipe production according to claim 1, characterized in that: The feeding assembly (14) includes a receiving hopper (16), the lower end of which is provided with a discharge pipe (17), and the interior of the discharge pipe (17) is connected to the interior of the receiving sleeve (4). The upper end of the receiving hopper (16) is provided with a storage cylinder (18).

3. The extrusion molding apparatus for producing plastic pipe fittings according to claim 2, characterized in that: The storage cylinder (18) is provided with a storage cavity (21) inside, and the storage cavity (21) extends through the storage cylinder (18) from top to bottom. Fixed flanges (19) are provided on the outer bottom of the storage cylinder (18) and the outer top of the receiving hopper (16). Flange bolts (20) are provided on the upper end of the fixed flanges (19), and the two fixed flanges (19) are connected by flange bolts (20).

4. An extrusion molding apparatus for producing plastic pipe fittings according to claim 2, characterized in that: The feeding assembly (14) also includes a feeding cylinder (22), the upper surface of which is provided with an arc cavity (23), the inner bottom surface of which is provided with a feeding channel (24), and there are multiple feeding channels (24), and the feeding channels (24) penetrate through the feeding cylinder (22).

5. An extrusion molding apparatus for producing plastic pipe fittings according to claim 4, characterized in that: The lower surface of the feed cylinder (22) is provided with a connecting post (25), and the connecting post (25) is welded and fixed to the feed cylinder (22). The upper surface of the storage cylinder (18) is provided with a connecting slot (26), and the connecting post (25) is inserted into the connecting slot (26).

6. An extrusion molding apparatus for producing plastic pipe fittings according to claim 2, characterized in that: The blowing assembly (15) includes a blower (27), and a duct (28) is provided between the blowing end of the blower (27) and the receiving hopper (16), and the internal channel of the duct (28) is interconnected with the internal channel of the receiving hopper (16). The blowing assembly (15) also includes a mounting bracket (29), and one end of the mounting bracket (29) is welded and fixed to the blower (27). The other end of the mounting bracket (29) is provided with a hexagonal bolt (30), and one end of the hexagonal bolt (30) passes through the mounting bracket (29) and is threadedly connected to the mounting top seat (13).

7. An extrusion molding apparatus for producing plastic pipe fittings according to claim 1, characterized in that: The lower ends of the receiving sleeve (4) and the conveying sleeve (5) are provided with support frame 2 (12), the lower end of the mounting platform (1) is provided with support frame (8), the front end of the support frame (8) is provided with control box (10), the upper end of the control box (10) is provided with control console (11), and the two ends of the bottom end of the support frame (8) are provided with fixing plates (9).

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