Plastic master batch molding extruder

Abstract

The utility model discloses an extruder for plastic master batch molding, relates to the technical field of extruders, and aims to solve the problems that a screw in an existing single-screw extruder is mostly a whole rod body, the screw operates in the extruder for a long time, the part of the screw is easy to damage due to environmental influence such as high temperature, and the screw is a whole body, so that the screw cannot be damaged easily. And a user can only disassemble and replace the whole body, so that the inconvenience is caused, and the cost is increased. Comprising an extruder bottom table, and an extruder main body is arranged above the extruder bottom table; the extruder main body comprises a plurality of warming heating cylinders which are arranged at intervals, connecting cylinders are arranged between the warming heating cylinders, screw rods are arranged in the warming heating cylinders, connecting assemblies are arranged in the connecting cylinders, and each connecting assembly comprises a fixing frame fixed to the inner wall of the corresponding connecting cylinder; a combined mounting block is arranged in the middle of the fixing frame, and a plurality of reinforcing frames are arranged between the fixing frame and the combined mounting block.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to an extruder for plastic masterbatch molding. Background Art

[0002] The screw extruder relies on the pressure and shear force generated by the rotation of the screw to fully plasticize and evenly mix the materials and form them through the die. Plastic extruders can be basically classified into twin-screw extruders, single-screw extruders, and the rare multi-screw extruders and screwless extruders.

[0003] The screw inside the existing single-screw extruder is mostly a whole rod body. The screw operates in the extruder for a long time, and parts of the screw are easily damaged by environmental influences such as high temperature. Since the screw is an integral part, users can only remove the entire screw for replacement, which is inconvenient and increases costs. Therefore, it does not meet the existing needs. In this regard, we propose an extruder for plastic masterbatch molding. Utility Model Content

[0004] The utility model aims to provide a plastic masterbatch molding extruder, which adopts a spaced heating cylinder and a multi-stage screw to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic masterbatch molding extruder, comprising: an extruder base, an extruder body is arranged above the extruder base; the extruder body comprises a plurality of temperature-raising and heating cylinders arranged at intervals, connecting cylinders are arranged between the temperature-raising and heating cylinders, screws are arranged inside the temperature-raising and heating cylinders, a connecting assembly is arranged inside the connecting cylinder, the connecting assembly comprises a fixing frame fixed on the inner wall of the connecting cylinder, a combined mounting block is arranged at the middle position of the fixing frame, a plurality of reinforcement frames are arranged between the fixing frame and the combined mounting block, a coupling is arranged on the outer wall of the combined mounting block, and the screws in each temperature-raising and heating cylinder are connected by a coupling.

[0006] Preferably, a support for support and reinforcement is provided at the bottom of the temperature-raising heating cylinder, and a lead screw linear module for driving the support to move is provided at the middle position of the support.

[0007] Preferably, the screw linear module includes ball screws located on both sides, a screw slider is provided on the outer wall of the ball screw, and the screw slider is assembled and installed with the inner side wall of the support.

[0008] Preferably, both ends of the connecting tube are detachably provided with assembly covers, and the assembly covers are mounted on the ends of the front and rear heating tubes by bolts.

[0009] Preferably, an electric heater is provided on the inner wall of the temperature-raising heating cylinder, and a heat-conducting plate is provided on the lower surface of the electric heater.

[0010] Preferably, a driving motor for driving the screw to rotate is disposed at one end of the temperature-increasing heating cylinder, and a reduction box is disposed at the front end of the driving motor.

[0011] Preferably, a hopper is provided above one end of the temperature-raising heating cylinder close to the driving motor, and an extrusion head is provided on one end of the temperature-raising heating cylinder away from the driving motor.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model divides the extruder into a plurality of heating cylinders, each of which is provided with a short-distance screw, and a long-distance screw is composed of a plurality of short-distance screws. The utility model has the advantage that in the subsequent damage and replacement process, the damaged part can be disassembled and removed without replacing the entire screw, thereby reducing cost losses. In addition, the heating cylinders arranged at multiple intervals can be set with different heating temperatures. Through different temperatures, the plastic masterbatch can be heated and melted at different temperatures in different heating cylinders during the extrusion process. Since the heating cylinder and the connecting cylinder are detachable, it is convenient for users to replace and repair the components in the cylinder later. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the temperature-raising heating cylinder and the connecting cylinder of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the connection assembly of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the support and the lead screw linear module of the utility model;

[0018] In the figure: 1. Extruder base; 2. Drive motor; 3. Reducer; 4. Heating cylinder; 5. Connecting cylinder; 6. Hopper; 7. Electric heater; 8. Heat conduction plate; 9. Screw; 10. Connecting assembly; 11. Fixing frame; 12. Combined mounting block; 13. Coupling; 14. Reinforcement frame; 15. Extrusion head; 16. Support; 17. Screw linear module; 18. Screw slider; 19. Ball screw; 20. Assembly cover. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1-4 The utility model provides an embodiment: an extruder for plastic masterbatch molding, comprising: an extruder base 1, an extruder body is arranged above the extruder base 1; the extruder body comprises a plurality of temperature-raising and heating cylinders 4 arranged at intervals, a connecting cylinder 5 is arranged between the temperature-raising and heating cylinders 4, a screw 9 is arranged inside the temperature-raising and heating cylinder 4, a connecting assembly 10 is arranged inside the connecting cylinder 5, the connecting assembly 10 comprises a fixing frame 11 fixed on the inner wall of the connecting cylinder 5, a combined mounting block 12 is arranged at the middle position of the fixing frame 11, a plurality of reinforcement frames 14 are arranged between the fixing frame 11 and the combined mounting block 12, a coupling 13 is arranged on the outer wall of the combined mounting block 12, and the screw 9 in each temperature-raising and heating cylinder 4 is connected by the coupling 13.

[0021] A driving motor 2 for driving the screw 9 to rotate is disposed at one end of the temperature-raising heating cylinder 4 , and a reduction box 3 is disposed at the front end of the driving motor 2 .

[0022] A plurality of spaced-apart heating tubes 4 and connecting tubes 5 are combined together, and the screw 9 is used for transmission at each heating tube 4 and connecting tube 5. The screw 9 is connected together by means of a coupling 13, so that when the driving motor 2 drives the rear end screw 9 to rotate, the remaining screws 9 in the front will also rotate, thereby achieving the effect of driving the internal plastic masterbatch to move and extrude. The overall multi-stage structure is convenient for users to replace the screw 9 at the corresponding position, which is more convenient than the integrated type. The heating tubes 4 are relatively independent, and different temperatures can be set in different heating tubes 4. During the extrusion and movement of the plastic masterbatch, heating and melting at different temperatures can be performed.

[0023] The fixing frame 11 and the reinforcing frame 14 play a supporting and reinforcing role, and the cavity between the reinforcing frames 14 is used for the internal plastic masterbatch to move.

[0024] See also Figure 4 A support 16 for support and reinforcement is provided at the bottom of the heating cylinder 4, and a screw linear module 17 for driving the support 16 to move is provided at the middle position of the support 16, wherein the screw linear module 17 includes ball screws 19 located on both sides, and a screw slider 18 is provided on the outer wall of the ball screw 19, and the screw slider 18 is combined and installed with the inner wall of the support 16.

[0025] The support 16 is used to support and fix the upper heating tube 4. Through the setting of the screw linear module 17, the screw motor (not shown in the figure) and the ball screw 19 drive the screw slider 18 to move, and then drive the support 16 to move. During installation and disassembly and maintenance, the user can adjust the position of the heating tube 4 through displacement, which is convenient for opening and closing the distance, and convenient for maintenance and replacement operations.

[0026] Each heating cylinder 4 is moved by an independently arranged lead screw linear module 17 to perform independent displacement.

[0027] See also Figure 1 Both ends of the connecting tube 5 are detachably provided with assembly covers 20, and the assembly covers 20 are installed on the ends of the front and rear heating tubes 4 by bolts.

[0028] The provision of the assembly cover 20 enables the connection tube 5 and the temperature-increasing heating tube 4 to be disassembled and assembled, making it convenient for users to perform installation, disassembly, replacement and maintenance operations.

[0029] See also Figure 2 An electric heater 7 is arranged on the inner wall of the temperature-raising heating cylinder 4 , and a heat-conducting plate 8 is arranged on the lower surface of the electric heater 7 .

[0030] The electric heater 7 is used to heat the heating tube 4 to heat and melt the plastic masterbatch inside. The electric heaters 7 in each heating tube 4 are independent of each other, which is convenient for users to set different temperatures; the heat conducting plate 8 is used to transfer the temperature to the cavity of the heating tube 4.

[0031] See also Figure 2 A hopper 6 is provided above one end of the heating tube 4 close to the driving motor 2 , and an extrusion head 15 is provided on one end of the heating tube 4 away from the driving motor 2 .

[0032] The hopper 6 is used for feeding plastic masterbatch, and is located above the heating cylinder 4 at the rear end, so as to facilitate the extrusion of the plastic masterbatch from the rear end to the front; the extrusion head 15 is used for discharging the plastic masterbatch after it is melted inside.

[0033] Working principle: When in use, a plurality of spaced heating cylinders 4 and connecting cylinders 5 are combined together, and the screw 9 is used to transmit at each heating cylinder 4 and connecting cylinder 5. The screw 9 is connected together by a coupling 13, so that when the driving motor 2 drives the rear screw 9 to rotate, the remaining screws 9 in the front will also rotate, so as to achieve the effect of driving the internal plastic masterbatch to move and extrude. The overall multi-stage structure is convenient for users to replace the screw 9 at the corresponding position, which is more convenient than the integrated structure. The heating cylinder 4 is relatively independent, and different temperatures can be set in different heating cylinders 4. During the extrusion and movement of the plastic masterbatch, heating and melting at different temperatures are performed;

[0034] The electric heater 7 is used to heat the heating cylinder 4, and heat and melt the plastic masterbatch inside. The electric heaters 7 in each heating cylinder 4 are independent of each other, so that the user can set different temperatures. The heat conducting plate 8 is used to transfer the temperature to the cavity of the heating cylinder 4.

[0035] The support 16 is used to support and fix the heating cylinder 4 above. Through the setting of the screw linear module 17, the screw motor and the ball screw 19 drive the screw slider 18 to move, thereby driving the support 16 to move. During installation and disassembly and maintenance, the user can adjust the position of the heating cylinder 4 through displacement, which is convenient for opening and closing the distance, and is convenient for maintenance and replacement operations;

[0036] The hopper 6 is used for feeding plastic masterbatch, and is located above the heating cylinder 4 at the rear end, so as to facilitate the extrusion of the plastic masterbatch from the rear end to the front; the extrusion head 15 is used for discharging the plastic masterbatch after it is melted inside.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An extruder for plastic masterbatch molding, comprising an extruder base (1), wherein an extruder body is arranged above the extruder base (1); characterized in that: The extruder body comprises a plurality of temperature-raising and heating cylinders (4) arranged at intervals, a connecting cylinder (5) is arranged between the temperature-raising and heating cylinders (4), a screw (9) is arranged inside the temperature-raising and heating cylinder (4), a connecting assembly (10) is arranged inside the connecting cylinder (5), the connecting assembly (10) comprises a fixing frame (11) fixed on the inner wall of the connecting cylinder (5), a combined mounting block (12) is arranged at the middle position of the fixing frame (11), a plurality of reinforcement frames (14) are arranged between the fixing frame (11) and the combined mounting block (12), a coupling (13) is arranged on the outer wall of the combined mounting block (12), and the screw (9) in each temperature-raising and heating cylinder (4) is connected via the coupling (13).

2. The extruder for plastic masterbatch molding according to claim 1, characterized in that: A support (16) for supporting and reinforcing is arranged at the bottom of the temperature-raising heating cylinder (4), and a lead screw linear module (17) for driving the support (16) to move is arranged at the middle position of the support (16).

3. The extruder for plastic masterbatch molding according to claim 2, characterized in that: The screw linear module (17) comprises ball screws (19) located on both sides, a screw slider (18) is arranged on the outer wall of the ball screw (19), and the screw slider (18) is assembled and installed with the inner side wall of the support (16).

4. The extruder for plastic masterbatch molding according to claim 1, characterized in that: Both ends of the connecting cylinder (5) are detachably provided with assembly covers (20), and the assembly covers (20) are mounted on the ends of the front and rear temperature-increasing heating cylinders (4) by means of bolts.

5. The extruder for plastic masterbatch molding according to claim 1, characterized in that: An electric heater (7) is arranged on the inner wall of the temperature-raising heating cylinder (4), and a heat-conducting plate (8) is arranged on the lower surface of the electric heater (7).

6. The extruder for plastic masterbatch molding according to claim 1, characterized in that: A driving motor (2) for driving the screw rod (9) to rotate is disposed at one end of the temperature-raising heating cylinder (4), and a reduction box (3) is disposed at the front end of the driving motor (2).

7. The extruder for plastic masterbatch molding according to claim 6, characterized in that: A hopper (6) is provided above one end of the temperature-raising heating cylinder (4) close to the driving motor (2), and an extrusion head (15) is provided at one end of the temperature-raising heating cylinder (4) away from the driving motor (2).

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