Double-screw extruder for producing medical elastic material

Abstract

The utility model discloses a twin-screw extruder for producing a medical elastic material in the technical field of twin-screw extruders, which comprises an extrusion case, a discharge pipe is arranged on the right side wall of the extrusion case in a penetrating and communicating manner, two groups of screw rods are rotatably connected in the extrusion case, and a driving device is arranged on the left side wall of the extrusion case. A feeding hopper is arranged at the top of the extrusion machine box in a penetrating and communicating mode, a stirring assembly is arranged in the feeding hopper, and a beating assembly is arranged at the top of the extrusion machine box. And meanwhile, the outer wall of the discharging pipe of the feeding hopper can be beaten under the action of the beating assembly, and therefore the situation that materials are blocked during discharging can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of twin-screw extruders, in particular to a twin-screw extruder used for producing medical elastic materials. Background Art

[0002] The twin-screw extruder is developed on the basis of the single-screw extruder. Due to its good feeding performance, mixing and plasticizing performance, exhaust performance, extrusion stability and other characteristics, the twin-screw extruder is needed in the production of medical elastic materials. At present, most twin-screw extruders use a feeding funnel for feeding, but it is easy to get blocked when feeding, so it is necessary to stop the machine for unblocking, affecting production efficiency. Therefore, we propose a twin-screw extruder for the production of medical elastic materials. Utility Model Content

[0003] The purpose of the utility model is to provide a twin-screw extruder for producing medical elastic materials to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a twin-screw extruder for the production of medical elastic materials, comprising an extruder box, a discharge pipe is penetrated and connected through the right side wall of the extruder box, two sets of screw rods are rotatably connected in the extruder box, a driving device is provided on the left side wall of the extruder box, a feed funnel is penetrated and connected through the top of the extruder box, a stirring assembly is provided in the feed funnel, and a knocking assembly is provided on the top of the extruder box.

[0005] Furthermore, the stirring assembly includes a rotating rod provided in the feed funnel, a plurality of stirring rods are provided on the outer wall of the rotating rod, a mounting frame is provided on the top of the extruder box, one end of the rotating rod is connected to a bearing provided on the top of the mounting frame, a first driven bevel gear is sleeved and installed on the outer wall of the rotating rod, a first driving bevel gear meshing with the first driven bevel gear is provided in the mounting frame, a rotating shaft is provided on the right side wall of the first driving bevel gear, a motor is provided on the right side wall of the mounting frame, and the output end of the motor is connected to one end of the rotating shaft.

[0006] Furthermore, the mounting frame is arranged in an L shape.

[0007] Furthermore, a plurality of groups of stirring rods are spirally arranged on the outer side wall of the rotating rod.

[0008] Furthermore, the knocking assembly includes a sleeve provided on the top of the extruder case, a sliding plate is slidably connected inside the sleeve, a movable rod is provided on the left side wall of the sliding plate, one end of the movable rod passes through the left side wall inside the sleeve and is connected to a knocking block provided on the outside, a spring is sleeved on the outer wall of the movable rod, one end of the spring is connected to the left side wall inside the sleeve, and the other end of the spring is connected to the left side wall of the sliding plate, a rotating rod is connected to the bottom of the sleeve through a bearing, a cam is sleeved on the outer wall of the rotating rod, one end of the rotating rod passes through the top of the sleeve and is connected to a second driven bevel gear provided on the outside, and a second active bevel gear meshing with the second driven bevel gear is sleeved on the outer wall of the rotating shaft.

[0009] Furthermore, the upper and lower side walls of the sleeve are both provided with guide grooves, and the upper and lower side walls of the sliding plate are both provided with guide blocks matching the guide grooves.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model can stir the material in the feed funnel under the action of the stirring component, so that the material can be discharged more smoothly, and at the same time, the outer wall of the discharge pipe of the feed funnel can be knocked under the action of the knocking component, thereby avoiding blockage of the material when discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the internal structure of the sleeve of the utility model.

[0013] In the figure: 1, extruder box; 2, screw rod; 3, discharge pipe; 4, driving device; 5, feed funnel; 6, stirring assembly; 60, stirring rod; 61, rotating rod; 62, first driven bevel gear; 63, first driving bevel gear; 64, rotating shaft; 65, mounting frame; 66, motor; 7, knocking assembly; 70, second driving bevel gear; 71, second driven bevel gear; 72, rotating rod; 73, sleeve; 74, movable rod; 75, knocking block; 76, spring; 77, sliding plate; 78, cam. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in 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 in 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.

[0015] Embodiment 1:

[0016] See also Figure 1 The utility model provides a technical solution: a twin-screw extruder for the production of medical elastic materials, including an extruder box 1, a discharge pipe 3 is penetrated and connected through the right wall of the extruder box 1, two sets of screw rods 2 are rotatably connected in the extruder box 1, a driving device 4 is provided on the left wall of the extruder box 1, a feeding funnel 5 is penetrated and connected through the top of the extruder box 1, a stirring component 6 is provided in the feeding funnel 5, and a knocking component 7 is provided on the top of the extruder box 1.

[0017] See also Figure 1 The stirring assembly 6 includes a rotating rod 61 provided in the feeding funnel 5, and a plurality of stirring rods 60 are provided on the outer wall of the rotating rod 61. The plurality of stirring rods 60 are spirally arranged on the outer wall of the rotating rod 61. A mounting frame 65 is provided on the top of the extruder box 1. The mounting frame 65 is arranged in an L shape. One end of the rotating rod 61 is connected to a bearing provided on the top of the mounting frame 65. A first driven bevel gear 62 is sleeved and installed on the outer wall of the rotating rod 61. A first driving bevel gear 63 meshing with the first driven bevel gear 62 is provided in the mounting frame 65. A rotating shaft 64 is provided on the right side wall of the first driving bevel gear 63. A motor 66 is provided on the right side wall of the mounting frame 65. The output end of the motor 66 is connected to one end of the rotating shaft 64.

[0018] See also Figure 1-2 The knocking assembly 7 includes a sleeve 73 provided on the top of the extruder box 1, a sliding plate 77 is slidably connected in the sleeve 73, guide grooves are provided on the upper and lower side walls of the sleeve 73, and guide blocks matching the guide grooves are provided on the upper and lower side walls of the sliding plate 77. Under the action of the guide grooves and the guide blocks, the sliding plate 77 moves more stably in the sleeve 73. A movable rod 74 is provided on the left side wall of the sliding plate 77. One end of the movable rod 74 passes through the left side wall of the sleeve 73 and is connected to the knocking block 75 provided on the outside. A spring 76 is sleeved on the outer wall of 74, one end of the spring 76 is connected to the left side wall of the sleeve 73, and the other end of the spring 76 is connected to the left side wall of the sliding plate 77. A rotating rod 72 is connected to the bottom of the sleeve 73 through a bearing, and a cam 78 is sleeved on the outer wall of the rotating rod 72. One end of the rotating rod 72 passes through the top of the sleeve 73 and is connected to the second driven bevel gear 71 provided on the outside. A second active bevel gear 70 meshing with the second driven bevel gear 71 is sleeved on the outer wall of the rotating shaft 64.

[0019] Working principle: Pour the material into the feed hopper 5, the driving device 4 drives the screw rod 2 to rotate, so that the screw rod 2 can discharge the material from the discharge pipe 3, the motor 66 drives the rotating rod 61 to rotate, the rotating rod 61 drives the first active bevel gear 63 to rotate, the first active bevel gear 63 drives the first driven bevel gear 62 to rotate, the first driven bevel gear 62 drives the rotating rod 61 to rotate, the rotating rod 61 drives the stirring rod 60 to rotate, the stirring rod 60 can stir the material in the feed hopper 5 to make the material discharge smoother, and the rotating rod 61 rotates At this time, the second active bevel gear 70 will be driven to rotate, the second active bevel gear 70 will drive the second driven bevel gear 71 to rotate, the second driven bevel gear 71 will drive the rotating rod 72 to rotate, the rotating rod 72 will drive the cam 78 to rotate, the protrusion of the cam 78 will indirectly knock the sliding plate 77, the sliding plate 77 will squeeze the movable rod 74 and the spring 76, the movable rod 74 will drive the knocking block 75 to knock the outer wall of the discharge pipe of the feed funnel 5, and the spring 76 can knock it indirectly under the action of the elastic force of the spring 76, so as to avoid blockage of the material when the material is discharged.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A twin-screw extruder for producing medical elastic materials, comprising an extruder box (1), a discharge pipe (3) penetrating and communicating with the right side wall of the extruder box (1), two sets of screw rods (2) rotatably connected in the extruder box (1), and a driving device (4) on the left side wall of the extruder box (1), characterized in that: A feeding funnel (5) is provided through and in communication with the top of the extruder box (1), a stirring component (6) is provided inside the feeding funnel (5), and a knocking component (7) is provided on the top of the extruder box (1).

2. The twin-screw extruder for producing medical elastic materials according to claim 1, characterized in that: The stirring assembly (6) comprises a rotating rod (61) arranged in the feeding funnel (5), the outer wall of the rotating rod (61) is provided with a plurality of stirring rods (60), the top of the extruder box (1) is provided with a mounting frame (65), one end of the rotating rod (61) is connected to a bearing arranged in the top of the mounting frame (65), a first driven bevel gear (62) is sleeved and mounted on the outer wall of the rotating rod (61), a first driving bevel gear (63) meshing with the first driven bevel gear (62) is arranged in the mounting frame (65), a rotating shaft (64) is arranged on the right side wall of the first driving bevel gear (63), a motor (66) is arranged on the right side wall of the mounting frame (65), and an output end of the motor (66) is connected to one end of the rotating shaft (64).

3. The twin-screw extruder for producing medical elastic materials according to claim 2, characterized in that: The mounting frame (65) is arranged in an L shape.

4. The twin-screw extruder for producing medical elastic materials according to claim 2, characterized in that: A plurality of groups of stirring rods (60) are arranged in a spiral shape on the outer side wall of the rotating rod (61).

5. The twin-screw extruder for producing medical elastic materials according to claim 2, characterized in that: The knocking assembly (7) includes a sleeve (73) provided on the top of the extruder box (1), a sliding plate (77) is slidably connected inside the sleeve (73), a movable rod (74) is provided on the left side wall of the sliding plate (77), one end of the movable rod (74) passes through the inner left side wall of the sleeve (73) and is connected to a knocking block (75) provided on the outside, a spring (76) is sleeved on the outer wall of the movable rod (74), one end of the spring (76) is connected to the inner left side wall of the sleeve (73), and the spring (76) is connected to the outer wall of the sleeve (73). The other end of the spring (76) is connected to the left side wall of the sliding plate (77); the inner bottom of the sleeve (73) is connected to a rotating rod (72) through a bearing; the outer wall of the rotating rod (72) is sleeved with a cam (78); one end of the rotating rod (72) passes through the inner top of the sleeve (73) and is connected to a second driven bevel gear (71) provided outside; the outer wall of the rotating shaft (64) is sleeved with a second driving bevel gear (70) meshing with the second driven bevel gear (71).

6. The twin-screw extruder for producing medical elastic materials according to claim 5, characterized in that: The upper and lower side walls of the sleeve (73) are both provided with guide grooves, and the upper and lower side walls of the sliding plate (77) are both provided with guide blocks matching the guide grooves.

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